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CN101088908A - Sliding type fork device - Google Patents

Sliding type fork device Download PDF

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Publication number
CN101088908A
CN101088908A CN 200710111039 CN200710111039A CN101088908A CN 101088908 A CN101088908 A CN 101088908A CN 200710111039 CN200710111039 CN 200710111039 CN 200710111039 A CN200710111039 A CN 200710111039A CN 101088908 A CN101088908 A CN 101088908A
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CN
China
Prior art keywords
base portion
portion side
mentioned
relaying
tooth bar
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Granted
Application number
CN 200710111039
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Chinese (zh)
Other versions
CN100560470C (en
Inventor
吉永和治
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Daifuku Co Ltd
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Daifuku Co Ltd
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Application filed by Daifuku Co Ltd filed Critical Daifuku Co Ltd
Publication of CN101088908A publication Critical patent/CN101088908A/en
Application granted granted Critical
Publication of CN100560470C publication Critical patent/CN100560470C/en
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Abstract

The present invention provides a sliding fork device which makes the ash hard to disperse and is easy to use. The structure is as follows, make the base side component (15), the middle connecting component (17) and the front side component (19) composed with the mode which is same to the length of the sliding direction, make the base side connecting component (16) and front side connecting component (18) composed with the mode which is same to the length of the sliding direction and is less than the middle connecting component, make the base side connecting component of the base side component and the middle connecting component interlocked by the base side used rack bar (31), the base side relaying used rack bar (32) and base side used pinion (36), make the base side connecting component, the middle connecting component and the front side connecting component (18) interlocked by the restis (44), and make the middle connecting component, the front side connecting component and the front side component interlocked by the front side relaying used rack bar (33), the front side used rack bar (34) and the front side used pinion (37).

Description

Slide fork device
Technical field
The present invention relates to a kind of slide fork device, its front parts that support usefulness with article constitute with respect to the advance and retreat mode of operation of base portion side parts.
Background technology
Described slide fork device, be the front parts upper support article that support usefulness at article, make these front parts with respect to the operation of advancing and retreat of base portion side parts, thus the device of transhipment article, and it is arranged on the stack crane in the automated warehouse etc. and is used.In addition, " slip " in this specification sheets comprises Frictional Slipping and rolling.Stack crane is illustrated, stack crane is arranged in the automated warehouse with host rack, this host rack is arranged in the both sides of direction of slip that horizontal cross direction that the direction of travel with stack crane intersects is the front parts of slide fork device, and this stack crane constitutes and can use slide fork device and transport article between the host rack that both sides had.
And, in above-mentioned existing glide formula fork device, be provided with intermediate connecting part, it has: the base portion side engaging part, its can be free to slide engage with guide rail with base portion side on being arranged on the base portion side parts; And front engaging part, its can be free to slide engage with guide rail with front on being arranged on the front parts, base portion side uses engaging part so that the state setting of the same length of guide rail of its snap action scope and base portion side, front with engaging part so that its snap action scope and front with the state setting of the same length of guide rail, base portion side parts, intermediate connecting part and front parts are along the same length ground formation of direction of slip.
And, in order to switch being retracted between the outstanding state in state and side, the advance and retreat driver element is set, it is with respect to the base portion side parts and the slide intermediate connecting part, and with respect to intermediate connecting part and slide front parts, constitute the front parts are being given prominence to state with respect to the base portion side parts to a distolateral outstanding side of direction of slip, and between the outstanding state in side in addition that opposite side is given prominence to, switch, the above-mentioned state that is retracted into is: intermediate connecting part is moved with respect to the base portion side parts, on the midway location that is positioned at the scope that can move with the length direction of guide rail along base portion side, and the front parts are moved with respect to intermediate connecting part, so that intermediate connecting part is positioned on the midway location of the scope that can move with the length direction of guide rail along front, the outstanding state in above-mentioned side is: make intermediate connecting part with respect to the distolateral or other end side shifting of base portion side parts to its scope that can move, and make the front parts with respect to the distolateral or other end side shifting of intermediate connecting part to its scope that can move, wherein, the structure of advance and retreat driver element is, have: funicular entity, it is connected with the base portion side parts and to distolateral and another distolateral extension setting of direction of slip, after the inverted guidance of the inverted guidance of a side of utilizing intermediate connecting part to have and opposite side oppositely leads, be connected with the front parts; And the slip driver element, it makes intermediate connecting part carry out slide (for example, with reference to patent documentation 1 with respect to the front parts.)。
That is,, constitute between article transhipment object's position, obtain being suitable for transporting the advance and retreat amount of the front parts of article at the host rack of direction of slip both sides etc. by base portion side parts, intermediate connecting part and 3 sections slide fork devices of front component set-up.
Patent documentation 1: open flat 2-2307 communique in fact
Summary of the invention
But, in above-mentioned existing glide formula fork device, because the engaging part that base portion side is used is set to, make its snap action scope and base portion side length with the same length of guide rail, so switching under the state that makes the outstanding state in side that base portion side slides with guide rail with respect to base portion side with engaging part from being retracted into state, in the scope of the side that base portion side is slided in its snap action scope with engaging part, with base portion side with the disengaging that engages between the guide rail, in addition, because the engaging part that front is used is set to, make its snap action scope and front length with the same length of guide rail, so switching under the state that makes the outstanding state in side that front slides with engaging part with respect to front with guide rail from being retracted into state, in the scope of front with the opposite side with the slip side of engaging part in its snap action scope, with front with the disengaging that engages between the guide rail.
Like this, because when being retracted into state and switching to the outstanding state in side, can't keep base portion side is all engaging with the base portion side guide rail in the snap action scope with engaging part, and front is all engaging with the front guide rail in the snap action scope with engaging part, so when being retracted into state and switching to the outstanding state in side, owing to base portion side with engaging or dust that front produces with engaging between the guide rail with engaging part and front between engaging part and the base portion side guide rail, when breaking away from, these engagings easily disperse towards periphery, so be difficult to be arranged in the clean room.In addition, under the situation that base portion side constitutes with sliding type with engaging part with engaging part or front, in that outstanding state switches to when being retracted into state from the side, because base portion side is difficult to successfully carry out with the distolateral forward engaging with guide rail of engaging part to engaging and the front of base portion side with guide rail with engaging part, generation can't be given prominence to the possibility that state successfully switches to the state of being retracted into from the side.
The present invention proposes in view of above-mentioned present situation, and its purpose is, a kind of slide fork device is provided, and it makes dust be difficult to disperse and be easy to use.
To achieve these goals, the 1st feature structure of slide fork device involved in the present invention is, a kind of slide fork device, and it constitutes front parts that article support usefulness with respect to the operation of advancing and retreat of base portion side parts, it is characterized in that, is provided with:
The base portion side link, it has the base portion side engaging part, and this base portion side can engage with guide rail with base portion side on being arranged on above-mentioned base portion side parts with engaging part with being free to slide;
Intermediate connecting part, it has base portion side relaying guide rail, and this base portion side relaying can engage with engaging part with base portion side relaying on being arranged on this base portion side link with guide rail with being free to slide; And
The front link, it has front relaying engaging part and front engaging part, this front relaying can engage with guide rail with front relaying on being arranged on this intermediate connecting part with engaging part with being free to slide, this front can engage with guide rail with front on being arranged on above-mentioned front parts with engaging part with being free to slide
Above-mentioned base portion side engaging part; So that its snap action scope arranges less than the state formula of above-mentioned base portion side with the length of guide rail; Above-mentioned base portion side relaying engaging part; So that its snap action scope is less than the state setting of above-mentioned base portion side relaying with the length of guide rail; Above-mentioned front distolateral relaying engaging part; So that its snap action scope is less than the state setting of above-mentioned front distolateral relaying with the length of guide rail; The above-mentioned front distolateral engaging part of using; So that its snap action scope is less than the above-mentioned front distolateral state setting of using the length of guide rail
Above-mentioned base portion side link and front link be along the length of direction of slip, less than the length of above-mentioned intermediate connecting part,
Be provided with the advance and retreat driver element, it makes above-mentioned base portion side all engage with guide rail with above-mentioned base portion side in the snap action scopes with engaging part keeping, above-mentioned base portion side relaying is all being engaged with guide rail with above-mentioned base portion side relaying in the snap action scope with engaging part, above-mentioned front relaying is all being engaged with guide rail with above-mentioned front relaying in the snap action scope with engaging part, and make above-mentioned front with engaging part in whole snap action scopes with state that above-mentioned front engages with guide rail under, in order to switch to the outstanding state in the state of being retracted into or side, make above-mentioned base portion side link carry out slide with respect to above-mentioned base portion side parts, make above-mentioned intermediate connecting part carry out slide with respect to above-mentioned base portion side link, make above-mentioned front link carry out slide with respect to above-mentioned intermediate connecting part, and make above-mentioned front parts carry out slide with respect to above-mentioned front link, this is retracted into state, above-mentioned base portion side link is moved with respect to above-mentioned base portion side parts, on the midway location that is located at the scope that can move with the length direction of guide rail along above-mentioned base portion side, above-mentioned intermediate connecting part is moved with respect to above-mentioned base portion side link, on the midway location that is located at the scope that can move with the length direction of guide rail along above-mentioned base portion side relaying, above-mentioned front link is moved with respect to above-mentioned intermediate connecting part, on the midway location that is located at the scope that can move with the length direction of guide rail along above-mentioned front relaying, and above-mentioned front parts are moved with respect to above-mentioned front link, on the midway location that is located at the scope that can move with the length direction of guide rail along above-mentioned front, the outstanding state in this side is, make above-mentioned base portion side link with respect to the distolateral or other end side shifting of above-mentioned base portion side parts to its scope that can move, make above-mentioned intermediate connecting part with respect to the distolateral or other end side shifting of above-mentioned base portion side link to its scope that can move, make above-mentioned front link with respect to the distolateral or other end side shifting of above-mentioned intermediate connecting part to its scope that can move, make above-mentioned front parts with respect to the distolateral or other end side shifting of above-mentioned front link to its scope that can move
This advance and retreat driver element has: the base portion side miniature gears, its be arranged on base portion side on the above-mentioned base portion side parts with tooth bar and be arranged on base portion side relaying on the above-mentioned intermediate connecting part with tooth bar ingear state, be arranged on the above-mentioned base portion side link; The front miniature gears, its be arranged on front relaying on the above-mentioned intermediate connecting part with tooth bar and be arranged on front on the above-mentioned front parts with tooth bar ingear state, be arranged on the above-mentioned front link; Funicular entity, it is connected with above-mentioned base portion side link and extends to an avris of direction of slip and another avris, by the inverted guidance of the inverted guidance of an avris that is arranged on above-mentioned intermediate connecting part and another avris after the reversing sense guiding, be connected with above-mentioned front link; And the slip driver element, it makes above-mentioned base portion side link carry out slide with respect to above-mentioned base portion side parts.
Promptly, owing to be arranged on the base portion side miniature gears on the base portion side link, mesh with tooth bar with tooth bar and the base portion side relaying that is arranged on the intermediate connecting part with the base portion side that is arranged on the base portion side parts, base portion side link utilization slip driver element slides with respect to the base portion side parts, thereby the miniature gears that base portion side is used rotation, by the rotation of this base portion side with miniature gears, intermediate connecting part slides with respect to the base portion side link.
And, because the funicular entity that is connected on the base portion side link extends to an avris and another avris, by the inverted guidance of the inverted guidance of an avris that is arranged on above-mentioned intermediate connecting part and another avris after the reversing sense guiding, connect above-mentioned front link, so it is as implied above, by intermediate connecting part is slided with respect to the base portion side link, by funicular entity the front link is carried out draw operations, the front link slides with respect to intermediate connecting part.
And then, owing to be arranged on the front miniature gears on the front link, mesh with tooth bar with tooth bar and the front that is arranged on the front parts with the front relaying that is arranged on the intermediate connecting part, so it is as noted above, slide with respect to intermediate connecting part by the front link, thereby the miniature gears that front is used rotation, the rotation of the miniature gears of using by this front, the front parts slide with respect to the front link.
Promptly, by making the base portion side link carry out slide with respect to the base portion side parts by the slip driver element, thereby intermediate connecting part slides with respect to the base portion side link, the front link slides with respect to intermediate connecting part, the front parts slide with respect to the front link, can carrying out from being retracted into state to making the front parts to the outstanding state in a side-prominent side or make the blocked operation of front parts to the outstanding outstanding state in side of opposite side, and from above-mentioned side outstanding state to the blocked operation that is retracted into state.
Therefore, by the base portion side link is set between base portion side parts and intermediate connecting part, between intermediate connecting part and front parts, the front link is set, make slide fork device become 5 layers, thereby obtain being suitable for the advance and retreat amount of the front parts of transhipment article between article transhipment object's position in the both sides of direction of slip, can between article transhipment position, transport article in the both sides of direction of slip, even simultaneously because to being retracted into state or making the front parts under the state that a side or the outstanding outstanding state in side of opposite side switch, also keeping engaging part is all engaging with guide rail in the snap action scope, so when being retracted into state and switching to the outstanding state in the outstanding side of a side and opposite side, because can suppress owing to engaging part is dispersed towards periphery with the dust that produces that engages between the guide rail, so be easy to be arranged in the high clean room of cleanliness, and, in that outstanding state switches between the direction of slip leading section of engaging part and guide rail when being retracted into state and can not interfere from the side, can successfully carry out giving prominence to state to the switching that is retracted into state from the side.
In addition, in the base portion side parts, has the tooth bar that guide rail that base portion side uses and base portion side are used, in intermediate connecting part, has base portion side relaying guide rail, front relaying guide rail, base portion side relaying tooth bar, the front relaying is with the inverted guidance of tooth bar and an avris and another avris, in the front parts, have guide rail and front tooth bar that front is used, because not having base portion side in base portion side link and front link uses, the base portion side relaying is used, the track that the front relaying is used and front is used, base portion side is used, the base portion side relaying is used, the tooth bar that the front relaying is used and front is used, and the inverted guidance of avris and another avris, so base portion side link and front link are constituted shortly along the length of direction of slip.
Be illustrated, the base portion side link has the base portion side engaging part, the base portion side relaying is with engaging part and base portion side miniature gears, be connected with funicular entity simultaneously, owing to do not have guide rail in this base portion side link, tooth bar and inverted guidance, so the base portion side link can be constituted along direction of slip shortly, and, the front link has front relaying engaging part, front is with engaging part and front miniature gears, be connected with funicular entity simultaneously, owing to do not have guide rail in this front link, tooth bar and inverted guidance are so can constitute the front link along direction of slip shortly.
In addition, because by the base portion side tooth bar, the base portion side relaying makes base portion side link and intermediate connecting part interlock with tooth bar and base portion side with the engagement between the miniature gears, intermediate connecting part and front link are when being connected base portion side link and front link by funicular entity, inverted guidance by an avris and another avris oppositely leads and interlock, by front relaying tooth bar, front makes front link and front parts interlock with tooth bar and front with the engagement between the miniature gears, so and all make interlock between base portion side link and the intermediate connecting part by rack-and-pinion, the interlock of interlock between intermediate connecting part and the front link and front link and front parts carries out interlock and compares, the error that can suppress the advance and retreat amount of the front parts that produce by backlash, simultaneously and all make interlock between base portion side link and the intermediate connecting part by funicular entity and inverted guidance, the interlock of interlock between intermediate connecting part and the front link and front link and front parts carries out interlock to be compared, simplification that can implementation structure.
Therefore, can between article transhipment object's position, transport article in the both sides of direction of slip, and make dust be difficult to disperse, can successfully switch simultaneously the outstanding state in the state of being retracted into and side, and then suppress the advance and retreat amount error of front parts as making the device that dust is difficult to disperse, and can realize the lightweight of slide fork device and the simplification of structure, make slide fork device become wieldy device, therefore, can provide and make dust be difficult to disperse and wieldy slide fork device.
The 2nd feature structure of slide fork device involved in the present invention is, in the 1st feature structure, constitutes the Frictional Slipping formula that above-mentioned engaging part can free Frictional Slipping ground engage with above-mentioned guide rail respectively.
That is,,, therefore, can be provided at the fork device of wieldy sliding type under the clean environment so can suppress the dust that the engaging between engaging part and the guide rail produces because each engaging part constitutes with the Frictional Slipping formula.
The 3rd feature structure of slide fork device involved in the present invention is that in the 1st or the 2nd feature structure, above-mentioned funicular entity is made of the belt of annular.
Promptly, because funicular entity is made of for example belt of the metal tape of laminal built-in stainless steel or the belt of metal wool etc., thereby can remove or roughly remove funicular entity because the aging elongation that causes, so can in over a long time, the advance and retreat amount of front parts be maintained the advance and retreat amount of expectation, thereby can reduce the frequency of upkeep operation, in addition, constitute in the mode that connects endless-belt because be, so, with have the front link is carried out belt from draw operations a to avris and the front parts compared to the situation that another avris carries out this a pair of belt of belt of draw operations, thereby the quantity that can reduce connection location can reduce the position of carrying out upkeep operation, therefore, can provide the slide fork device that to realize simplifying upkeep operation.
The 4th feature structure of slide fork device involved in the present invention is, in the 1st to the 3rd feature structure in any, above-mentioned base portion side component set-up is, on the Width that intersects with direction of slip, above-mentioned base portion side guide rail is set with a pair of side by side state, and, make above-mentioned base portion side tooth bar, on the position that is equivalent between this a pair of base portion side usefulness guide rail
Above-mentioned base portion side link constitutes, on Width, above-mentioned base portion side is set with engaging part and above-mentioned base portion side relaying engaging part respectively with arranged side by side a pair of state, and, make above-mentioned base portion side with miniature gears and above-mentioned funicular entity, on the position that is equivalent to reach between this a pair of base portion side usefulness engaging part between a pair of base portion side relaying usefulness engaging part
Above-mentioned intermediate connecting part constitutes, on Width, above-mentioned base portion side relaying is set with guide rail and above-mentioned front relaying guide rail respectively with arranged side by side a pair of state, and, make above-mentioned base portion side relaying with tooth bar and above-mentioned front relaying tooth bar, on the position that is equivalent to reach between this a pair of base portion side relaying usefulness guide rail between a pair of front relaying usefulness guide rail
Above-mentioned front link constitutes, on Width, above-mentioned front relaying is set with engaging part and above-mentioned front engaging part respectively with arranged side by side a pair of state, and, make above-mentioned front with miniature gears and above-mentioned funicular entity, on the position that is equivalent to reach between this a pair of front relaying usefulness engaging part between a pair of front usefulness engaging part
Above-mentioned front parts are provided with above-mentioned front guide rail with a pair of state arranged side by side on Width, and, make above-mentioned front tooth bar, on the position that is equivalent between this a pair of front usefulness guide rail.
Promptly, because the base portion side link is provided with in broad ways a pair of mode arranged side by side separately with engaging part with guide rail and base portion side along the base portion side of direction of slip guiding, so be easy to make the base portion side link stably to slide, because intermediate connecting part is provided with in broad ways a pair of mode arranged side by side separately with engaging part with guide rail and base portion side relaying along the base portion side relaying of direction of slip guiding, so be easy to make intermediate connecting part stably to slide, because the front link is provided with in broad ways a pair of mode arranged side by side separately with engaging part with guide rail and front relaying along the front relaying of direction of slip guiding, so be easy to make the front link stably to slide, because the front parts are provided with in broad ways a pair of mode arranged side by side separately with engaging part with guide rail and front along the front of direction of slip guiding, so be easy to make the front parts stably to slide, can make the operation of successfully advancing and retreat of front parts.
And, make the appropriate location of base portion side usefulness gear between a pair of base portion side usefulness guide rail, make base portion side use the appropriate location that reaches between the engaging part between a pair of base portion side relaying usefulness engaging part in a pair of base portion side with miniature gears and funicular entity, make the base portion side relaying use the appropriate location that reaches between the guide rail between a pair of front relaying usefulness guide rail at a pair of base portion side relaying with tooth bar and front relaying usefulness tooth bar, make the appropriate location of front usefulness tooth bar between a pair of front usefulness guide rail, by base portion side is used, the base portion side relaying is used, the front relaying is used and the front miniature gears, tooth bar and funicular entity utilize base portion side to use, the base portion side relaying is used, the front relaying with and the pair of guide rails used of front or engaging part between the space that forms and being provided with, the slide fork device broad ways can be constituted lessly.
Therefore, can provide a kind of fork device of sliding type, its operation of front parts successfully can being advanced and retreat can broad ways constitute simultaneously lessly.
The 5th feature structure of slide fork device involved in the present invention is, in the 4th feature structure, above-mentioned base portion side link constitutes, be positioned at the mode of a pair of above-mentioned base portion side with a pair of above-mentioned base portion side relaying with engaging part with the engaging part top, with a pair of above-mentioned base portion side engaging part and a pair of above-mentioned base portion side relaying engaging part, be set to state arranged side by side on above-below direction
Above-mentioned intermediate connecting part constitutes, be positioned at than the mode of a pair of above-mentioned base portion side relaying with guide rail with a pair of above-mentioned front relaying with the inboard of the more close Width of guide rail, with a pair of above-mentioned base portion side relaying guide rail and a pair of above-mentioned front relaying guide rail, be set to state arranged side by side on Width
Above-mentioned front link constitutes, be positioned at the mode of a pair of above-mentioned front relaying with a pair of above-mentioned front with engaging part with the engaging part top, with a pair of above-mentioned front relaying engaging part and a pair of above-mentioned front engaging part, be set to state arranged side by side on above-below direction
Above-mentioned front component set-up is, is positioned at the mode of a pair of above-mentioned front with the guide rail top with the mounting portion of mounting holding articles, will a pair of above-mentioned front usefulness guide rail and above-mentioned mounting portion, be set to state arranged side by side on above-below direction.
Promptly, because front relaying guide rail, the front guide rail, the front relaying can be with respect to the base portion side guide rail with engaging part with engaging part and front, base portion side relaying guide rail, base portion side is not provided with on above-below direction with engaging part overlappingly with engaging part and base portion side relaying, so the thickness of the distance up and down of slide fork device can be constituted lessly, front is positioned at the base portion side relaying with guide rail or base portion side relaying with the overlapping below of engaging part broad ways and be provided with etc. with engaging part with guide rail or front, therefore, can provide the slide fork device that the thickness of above-below direction can be constituted lessly.
The 6th feature structure of slide fork device involved in the present invention is, in the 5th feature structure, above-mentioned intermediate connecting part, be positioned at the mode of a pair of above-mentioned base portion side relaying with a pair of above-mentioned front relaying with guide rail with the guide rail below, a pair of above-mentioned base portion side relaying with guide rail and a pair of above-mentioned front relaying guide rail, is set to state arranged side by side on above-below direction.
Promptly, it is arranged side by side on above-below direction with guide rail with guide rail and a pair of front relaying that a pair of base portion side relaying is set, above-mentioned a pair of base portion side relaying is provided with on above-below direction with guide rail overlappingly with guide rail and a pair of front relaying, thereby the width of front link can be constituted lessly, therefore, can provide the slide fork device that the thickness of Width can be constituted lessly.
The 7th feature structure of slide fork device involved in the present invention is, in each of the 1st to the 6th feature structure, be provided with cover body, the above-mentioned base portion side that its covering is arranged on the above-mentioned base portion side parts forms part with tooth bar and the above-mentioned front that is arranged on the above-mentioned front parts with the portion of tooth at least in the tooth bar with tooth bar, the above-mentioned front relaying that is arranged on the above-mentioned intermediate connecting part with tooth bar, the above-mentioned base portion side relaying that is arranged on the above-mentioned intermediate connecting part.
Promptly, because base portion side tooth bar, base portion side relaying tooth bar, the front relaying forms part with tooth bar and front with tooth bar tooth portion at least separately and is covered by cover body, so under situation about making for miniature gears is successfully moved along the tooth bar length direction with lubricator, at miniature gears when the tooth bar length direction moves, can prevent that it from dispersing towards periphery by catch lubricant by cover body, because dust such as lubricant are difficult to disperse towards periphery, so be easy to be arranged in the high clean room of cleanliness, therefore, can provide the slide fork device that is easy to be arranged in the high clean room of cleanliness.
The 8th feature structure of slide fork device involved in the present invention is, in the 7th feature structure, as the cover body of the above-mentioned base portion side of the covering of above-mentioned cover body with tooth bar, cover the cover body of above-mentioned base portion side relaying with tooth bar, cover above-mentioned front relaying with the cover body of tooth bar and cover above-mentioned front and constitute respectively with the cover body of tooth bar, have and cover tooth bar length direction one distolateral and another distolateral another the distolateral cover part of a distolateral cover partial sum of tooth bar length direction that is capped the pinion position in the tooth bar respectively
Above-mentioned one distolateral cover part and above-mentioned another distolateral cover part in above-mentioned each cover body, with along with above-mentioned pinion position changes and constitutes along the flexible mode of tooth bar length direction along the tooth bar length direction, so that it becomes and the cooresponding length of length that is capped section of rack.
Promptly, if each tooth bar tooth bar engage position is along the one distolateral variation of tooth bar length direction, then shorten by a distolateral length of covering the section of rack of part covering, the length of the section of rack that is covered by another distolateral cover part is elongated, and, if the tooth bar engage position is along another the distolateral variation of tooth bar length direction, then the length of the section of rack that is covered by a distolateral cover part is elongated, shorten by another distolateral length of covering the section of rack of part covering, but constitute along the variation of tooth bar length direction and along the flexible mode of tooth bar length direction to be accompanied by the tooth bar engage position because of the distolateral cover part in each cover body and another distolateral cover part, so that it becomes and the cooresponding length of length that is capped section of rack, because distolateral cover part and another distolateral cover part in each cover body, even it is elongated to be capped the length of section of rack, also can be accompanied by the pinion position changes and extends along the tooth bar length direction, can cover rightly and be capped section of rack, and, because distolateral cover part and another distolateral cover part in each cover body, even being capped the length of section of rack shortens, also can be accompanied by the pinion position changes and shortens along the tooth bar length direction, can suppress it with respect to the length that is capped section of rack becomes unnecessary length along the tooth bar length direction, thereby is difficult to become obstacle.
Therefore, by making a distolateral cover part and another distolateral cover part in each cover body flexible along the variation of tooth bar length direction according to being accompanied by the pinion position, become and be capped the cooresponding length of length of section of rack, can provide each cover body when can cover each tooth bar rightly to be difficult to become the slide fork device of obstacle.
The 9th feature structure of slide fork device involved in the present invention is; In the 8th feature structure; Above-mentioned one distolateral cover part in above-mentioned each cover body and above-mentioned another distolateral cover part are made up of fixed enclosure and movable cover body; This fixed enclosure by the parts fixed support that can engage with the parts that are provided with capped tooth bar with being free to slide; This movable cover body by the parts that are provided with capped tooth bar along supporting in the setting range of tooth bar length direction with being free to slide; And by near above-mentioned fixed enclosure one side elasticity pretension
With parts that the parts that are provided with the tooth bar that is covered by above-mentioned one distolateral cover part and above-mentioned another distolateral cover part can engage with being free to slide on, be provided with pushing portion, it is resisted elasticity predetermincd tension and pushes the mobile above-mentioned pinion position that is accompanied by along the variation of tooth bar length direction and near the above-mentioned movable cover body that moves.
Promptly, because movable cover body is by (the base portion side parts of the parts with tooth bar, intermediate connecting part or front parts) support, fixed enclosure is by being free to slide parts (base portion side link or the front link) fixed pedestal that operatively engages with the parts with tooth bar, so change along its length by being accompanied by the pinion position, have the parts of tooth bar and can be free to slide the parts that operatively engage and relatively slide along the tooth bar length direction with it, fixed enclosure and movable cover body relatively slide along the tooth bar length direction together, a distolateral cover part and another end shield part in each cover body are stretched to become with the mode that is capped the cooresponding length of length of section of rack, therefore, can make distolateral cover part in each cover body and another distolateral cover part only so that fixed enclosure and movably cover body stretch along the simple structure that the tooth bar length direction relatively moves.
And, movable cover body by parts with tooth bar along supporting in the setting range of tooth bar length direction with being free to slide, and near said fixing cover body side by the elasticity pretension, even constitute longways along the tooth bar length direction near the movable cover body that moves, even exist side and opposite side to change at it tooth bar engage position, even push by opposing elasticity predetermincd tension mobile, thereby movable cover body is become along the long cover body of tooth bar length direction, also can not interfere miniature gears.
Therefore, can provide slide fork device with the cover body that is easy to cover rightly tooth bar.
The 10th feature structure of slide fork device involved in the present invention is, in the 1st feature structure, above-mentioned base portion side parts, above-mentioned intermediate connecting part and above-mentioned front parts are identical or roughly the same along the length of direction of slip,
Above-mentioned base portion side link and front link are identical or roughly the same along the length of direction of slip
Description of drawings
Fig. 1 is the plan view of automated warehouse.
Fig. 2 is the lateral plan of automated warehouse.
Fig. 3 is the exploded perspective view of slide fork device.
Fig. 4 is the decomposition side view of slide fork device.
Fig. 5 is the vertical profile front elevation of slide fork device.
Fig. 6 is the figure of the advance and retreat driver element in the expression slide fork device.
Fig. 7 is the partial cut-out oblique drawing of the fastening state of expression engaging part and guide rail.
Fig. 8 is the vertical profile lateral plan of the outstanding state in expression side.
Fig. 9 is the decomposition side view of the slide fork device in the embodiment 2.
Figure 10 is the vertical profile front elevation of the slide fork device in the embodiment 2.
Figure 11 is the lateral plan of the advance and retreat state of the slide fork device bottom in the expression embodiment 2.
Figure 12 is the lateral plan of the advance and retreat state on the slide fork device top in the expression embodiment 2.
Figure 13 is the lateral plan of the outstanding state of the slide fork device bottom in the expression embodiment 2.
Figure 14 is the lateral plan of the outstanding state on the slide fork device top in the expression embodiment 2.
Figure 15 is outstanding state in the embodiment 2 and the skeleton diagram that is retracted into the cover body in the state.
The specific embodiment
Below, based on the description of drawings embodiments of the present invention.
(embodiment 1)
As shown in Figure 1, the host rack 1 of accommodating article W disposes a pair of in relative mode, between this relative a pair of host rack 1, stack crane 2 is set to follow to be sailed track 3 and travels, constitute by this stack crane 2, at host rack 1 be arranged on the carrying article W that receives between the device 4 of the entrance side of host rack 1, constitute automated warehouse by host rack 1, stack crane 2 and the device 4 of receiving.In addition, as shown in Figure 1 and Figure 2, on host rack 1, on above-below direction and Width, be separated to form a plurality of article receiving portion of accommodating article W, constitute and on the host rack fore-and-aft direction, accommodate 1 article W.
In stack crane 2, sail on the chassis 5 of travelling that track 3 travels following, but in the upright front and back pair of posts 6 that free lifting ground guide support bay-lift 9 is set in the place, front and back end of travel direction, between the upper end side part of this front and back pair of posts 6, the upper frame 8 that is supported by upper track 7 guiding that are set at operation path top links, slide fork device 14 is set on bay-lift 9, and it constitutes and makes front parts 19 that article support usefulness with respect to base portion side parts 15 and along the direction of slip operation of advancing and retreat.And, slide fork device 14 is by making front parts 19 with respect to base portion side parts 15 and to the operation of advancing and retreat along the direction of slip of host rack fore-and-aft direction, constitute front parts 19 are switched between a side-prominent state and the outstanding state of opposite side, this side-prominent state is to make front parts 19 to the outstanding state of the host rack of an avris, and the outstanding state of this opposite side is to make front parts 19 to the outstanding state of the host rack of another avris.
That is, stack crane 2 constitutes, and by the lifting moving operation of bay-lift 9 and the advance and retreat operation of the front parts 19 in the slide fork device 14, can transport article W between relative a pair of host rack 1.
Below, slide fork device 14 is described.
As shown in Figure 3, slide fork device 14 constitutes and makes front parts 19 that article support usefulness with respect to base portion side parts 15 operation of advancing and retreat, it is provided with: base portion side link 16, it has base portion side with engaging part 26, and this base portion side can engage with guide rail 21 with base portion side on being arranged on above-mentioned base portion side parts 15 with engaging part 26 with being free to slide; Intermediate connecting part 17, it has the base portion side relaying with guide rail 22, and this base portion side relaying can engage with engaging part 27 with base portion side relaying on being arranged on this base portion side link 16 with guide rail 22 with being free to slide; And front link 18, it has front relaying engaging part 28 and front engaging part 29, this front relaying can engage with guide rail 23 with front relaying on being arranged on this intermediate connecting part 17 with engaging part 28 with being free to slide, and this front can engage with guide rail 24 with front on being arranged on above-mentioned front parts 19 with engaging part 29 with being free to slide.
And, above-mentioned base portion side parts 15, above-mentioned intermediate connecting part 17 and above-mentioned front parts 19 constitute in the same manner along the length of direction of slip, above-mentioned base portion side link 16 and above-mentioned front link 18 length along its length are identical, and constitute in half mode of the length that is less than or equal to above-mentioned intermediate connecting part 17.
Above-mentioned engaging part 26,27,28,29 respectively with above-mentioned guide rail 21,22,23,24 can be free the Frictional Slipping ground Frictional Slipping formula formation that engage, constitute line slideway by each combination between engaging part 26,27,28,29 and the guide rail 21,22,23,25.
In addition, engaging part 26,27,28,29 is made of a pair of guiding parts that is set up in parallel along direction of slip respectively, the snap action scope of engaging part 26,27,28,29, be meant from one side side end of the guiding parts of an avris of direction of slip the scope till the another side end of the guiding parts of another avris of direction of slip.
As shown in Figure 4, above-mentioned base portion side engaging part 26, its snap action scope is provided with under less than the state of above-mentioned base portion side with the length of guide rail 21, above-mentioned base portion side relaying engaging part 27, its snap action scope is provided with under less than the state of above-mentioned base portion side relaying with the length of guide rail 22, above-mentioned front relaying engaging part 28, its snap action scope is provided with under less than the state of above-mentioned front relaying with the length of guide rail 23, above-mentioned front is with engaging part 29, and its snap action scope is provided with under less than the state of above-mentioned front with the length of guide rail 24.
And, slide fork device 14 constitutes, above-mentioned base portion side is all being engaged keeping in the snap action scopes with guide rail 21 with above-mentioned base portion side with engaging part 26, above-mentioned base portion side relaying is all being engaged with guide rail 22 with above-mentioned base portion side relaying in the snap action scope with engaging part 27, above-mentioned front relaying is all being engaged with guide rail 23 with above-mentioned front relaying in the snap action scope with engaging part 28, and make above-mentioned front with engaging part 29 in whole snap action scopes with state that above-mentioned front engages with guide rail 24 under, can switch to the outstanding state in the state of being retracted into or side, this is retracted into state, above-mentioned base portion side link 16 is moved with respect to above-mentioned base portion side parts 15, on the midway location that is located at the scope that can move with the length direction of guide rail 21 along above-mentioned base portion side, above-mentioned intermediate connecting part 17 is moved with respect to above-mentioned base portion side link 16, on the midway location that is located at the scope that can move with the length direction of guide rail 22 along above-mentioned base portion side relaying, above-mentioned front link 18 is moved with respect to above-mentioned intermediate connecting part 17, on the midway location that is located at the scope that can move with the length direction of guide rail 23 along above-mentioned front relaying, and above-mentioned front parts 19 are moved with respect to above-mentioned front link 18, on the midway location that is located at the scope that can move with the length direction of guide rail 24 along above-mentioned front, the outstanding state in this side is, make above-mentioned base portion side link 16 with respect to the distolateral or other end side shifting of above-mentioned base portion side parts 15 to its scope that can move, make above-mentioned intermediate connecting part 17 with respect to the distolateral or other end side shifting of above-mentioned base portion side link 16 to its scope that can move, make above-mentioned front link 18 with respect to the distolateral or other end side shifting of above-mentioned intermediate connecting part 17, make above-mentioned front parts 19 with respect to the distolateral or other end side shifting of above-mentioned front link 18 to its scope that can move to its scope that can move.
As shown in Figure 6, in slide fork device 14, in order to switch to being retracted into the outstanding state in state and side, advance and retreat driver element 39 is set, it makes above-mentioned base portion side link 16 carry out slide with respect to above-mentioned base portion side parts 15, make above-mentioned intermediate connecting part 17 carry out slide with respect to above-mentioned base portion side link 16, make above-mentioned front link 18 carry out slide, and make above-mentioned front parts 19 carry out slide with respect to above-mentioned front link 18 with respect to above-mentioned intermediate connecting part 17.
And, the structure of this advance and retreat driver element 39 is, have: base portion side miniature gears 36, its be arranged on base portion side on the above-mentioned base portion side parts 15 with tooth bar 31 and be arranged on base portion side relaying on the above-mentioned intermediate connecting part 17 with under the tooth bar 32 ingear states, be arranged on the above-mentioned base portion side link 16; Front is with miniature gears 37, its be arranged on front relaying on the above-mentioned intermediate connecting part 17 with tooth bar 33 and be arranged under the front usefulness tooth bar 34 ingear states on the above-mentioned front parts 19, be arranged on the above-mentioned front link 18; Transmission belt 44 as funicular entity, it is connected with above-mentioned base portion side link 16 and extends to an avris and another avris of direction of slip, be arranged on an avris reverse of the inverted guidance of conduct one avris on the above-mentioned intermediate connecting part 17 with pulley 45 and reverse as another avris of the inverted guidance of another avris with pulley 45 in utilization, after the reversing sense guiding, be connected with above-mentioned front link 18; And slip driver element 40, it makes above-mentioned base portion side link 16 carry out slide with respect to above-mentioned base portion side parts 15.In addition, transmission constitutes with the belt of belt 44 by ring-type.
This slip driver element 40 constitutes to have: drive with pulley 41, it is driven by electrical motor (not shown) rotation; Guiding pulley 42, it is arranged on the base portion side parts 15; And the driving of ring-type belt 43, it is wound on above-mentioned driving and uses on the pulley 42 with pulley 41 and guiding.And, drive with belt 43 and is connected with base portion side link 16 and extends to an avris and another avris of direction of slip, be wound on simultaneously and drive with pulley 41 and lead and use on the pulley 42.
Below, base portion side parts 15, base portion side link 16, intermediate connecting part 17, front link 18 and front parts 19 are described in order.
As shown in Figure 5, base portion side parts 15 form the crooked upward shape in two ends of Width, observe being shaped as U word shape formation with section.
In addition, above-mentioned base portion side parts 15 constitute, with along and a pair of side by side state of the Width that intersects of direction of slip above-mentioned base portion side is set with guide rail 21, and, make above-mentioned base portion side with tooth bar 31 on the position that is equivalent between this a pair of base portion side usefulness guide rail 21.
Specifically, as Fig. 5 and shown in Figure 6, on the both ends of the broad ways in the upper base surface of base portion side parts 15, have the base portion side guide rail 21 of length direction respectively along direction of slip, on the pars intermedia of the Width in the upper base surface of base portion side parts 15, at length direction along having base portion side under the state of direction of slip with tooth bar 31.In addition, the pars intermedia of broad ways in the bottom of base portion side parts 15, and, have guiding pulley 42 respectively along on the both ends of direction of slip.
In addition, a pair of base portion side,, is arranged on the base portion side parts 15 with state arranged side by side in mode overlapping on the Width with tooth bar 31 and a pair of guiding pulley 42 with guide rail 21, base portion side.
In addition, a pair of base portion side is with guide rail 21 and base portion side tooth bar 31, to constitute along the identical length of the length of direction of slip with base portion side parts 15.And, on base portion side parts 15, have the covering base portion side is used engaging part 26 with guide rail 21 and base portion side a pair of dust boot 47.
Base portion side link 16, the both ends of its Width direction up and down prolong, the pars intermedia of Width is with lamellar formation, being shaped as H word shape with the section observation constitutes, top separately in the both ends of Width, the extension that forms the inboard extension setting of broad ways is provided with part.
In addition, above-mentioned base portion side link 16, with broad ways a pair of state arranged side by side, have above-mentioned base portion side engaging part 26 and above-mentioned base portion side relaying engaging part 27 respectively, and it constitutes, above-mentioned base portion side miniature gears 36 and above-mentioned transmission belt 44, be equivalent to this a pair of base portion side with between engaging part 26 and on the position between a pair of base portion side relaying usefulness engaging part 27, in addition, above-mentioned base portion side link 16 constitutes, a pair of above-mentioned base portion side relaying be positioned at engaging part 27 a pair of above-mentioned base portion side with the state above the engaging part 26 under, with state arranged side by side on above-below direction be provided with a pair of above-mentioned base portion side with engaging part 26 and a pair of above-mentioned base portion side relaying with engaging part 27.
Specifically, as Fig. 5 and shown in Figure 6, on the lower surface in the both ends of the Width of base portion side link 16, has base portion side engaging part 26 respectively, extension in the both ends of the Width of base portion side link 16 is provided with on the lower surface of part, have the base portion side relaying respectively with engaging part 27,, have base portion side miniature gears 36 at the pars intermedia of base portion side link 16 broad wayss and along on the central portion of direction of slip.In addition, lower surface in the pars intermedia of base portion side link 16 broad wayss and along on the middle position of direction of slip, connect and drive with belt 43, upper surface in the pars intermedia of base portion side link 16 broad wayss and along on the middle position of direction of slip connects transmission with belt 44.
And, base portion side engaging part 26 and base portion side relaying engaging part 27, in mode overlapping on above-below direction, be arranged on the base portion side link 16 with state arranged side by side, drive with belt 43 and transmission belt 44, be connected with base portion side link 16 with its connection location overlapping state on above-below direction, base portion side uses belt 43 and transmission with belt 44 with engaging part 27, base portion side with miniature gears 36, driving with engaging part 26, base portion side relaying, is arranged on the base portion side link 16 with broad ways state arranged side by side.Base portion side is with miniature gears 36, with base portion side with tooth bar 31 and base portion side relaying with tooth bar 32 overlapping on the above-below direction and center on horizontal axle center and be arranged on freely to rotate on the base portion side link 16.
In addition, base portion side constitutes with engaging part 27 with engaging part 26 and base portion side relaying, with the state that on direction of slip, separates the pair of guide rails parts are set, so that its snap action scope becomes the identical length of length with the direction of slip of base portion side link 16.In addition, base portion side link 16 is along the length of direction of slip, is less than or equal to intermediate connecting part 17 along half of direction of slip length.
Intermediate connecting part 17 forms the dish shape, and the central portion between the pars intermedia of its Width and the both ends of Width is recessed downwards to be formed.
In addition, above-mentioned intermediate connecting part 17, so that above-mentioned base portion side relaying guide rail 22 and above-mentioned front relaying guide rail 23 to be set respectively at Width a pair of state arranged side by side, and, it constitutes, make above-mentioned base portion side relaying tooth bar 32 and above-mentioned front relaying tooth bar 33, be equivalent to this a pair of base portion side relaying with between guide rail 22 and on the position between a pair of front relaying usefulness guide rail 23, and then, above-mentioned intermediate connecting part 17 constitutes, be positioned at than a pair of above-mentioned base portion side relaying with the inboard of guide rail 22 more close Widths and the mode of below with guide rail 23 with a pair of above-mentioned front relaying, with broad ways state arranged side by side side by side and on above-below direction be provided with a pair of above-mentioned base portion side relaying with guide rail 22 and a pair of above-mentioned front relaying with guide rail 23.
Specifically, as Fig. 5 and shown in Figure 6, on the both end sides of intermediate connecting part 17 broad wayss, the surface is gone up with length direction and is had the base portion side relaying with guide rail 22 along the state of direction of slip thereon respectively, on the pars intermedia of intermediate connecting part 17 broad wayss, from an avris of Width, front relaying guide rail 23, base portion side relaying are set in order with tooth bar 32, oppositely with pulley 45, front relaying tooth bar 33, front relaying guide rail 23.
And, a pair of front relaying guide rail 23, base portion side relaying tooth bar 32 and front relaying tooth bar 33, be arranged on the intermediate connecting part 17 with the state of length direction respectively along direction of slip, a pair of front relaying guide rail 23 and front relaying tooth bar 33, be arranged on the upper surface of intermediate connecting part 17, the base portion side relaying is arranged on the lower surface of intermediate connecting part 17 with tooth bar 32.
In addition, a pair of base portion side relaying with guide rail 22, a pair of front relaying with guide rail 23, base portion side relaying with tooth bar 32 and front relaying with tooth bar 33, constitute with intermediate connecting part 17 along the identical length of the length of direction of slip.In addition, in intermediate connecting part 17, has covering base portion side relaying is used guide rail 22 with engaging part 27 and base portion side relaying a pair of dust boot 47.
Front link 18, the both ends of its Width direction up and down prolong, and the intermediate portion forms lamellar, observe being shaped as H word shape formation with section, separately top in the both ends of Width, the inboard that forms broad ways is extended the extension that is provided with part is set.
In addition, above-mentioned front link 18, have above-mentioned front relaying engaging part 28 and above-mentioned front engaging part 29 respectively with broad ways a pair of state arranged side by side, and it constitutes, make above-mentioned front miniature gears 37 and above-mentioned transmission belt 44, be equivalent to this a pair of front relaying with between engaging part 28 and on the position between a pair of front usefulness engaging part 29, and then, above-mentioned front link 18 constitutes, be positioned at the mode of a pair of above-mentioned front relaying with a pair of above-mentioned front with engaging part 29, use engaging part 29 with state setting arranged side by side on above-below direction with engaging part 28 and a pair of above-mentioned front on a pair of above-mentioned front relaying with the top of engaging part 28.
Specifically, as Fig. 5 and shown in Figure 6, on the lower surface in the both ends of the Width of front link 18, has front relaying engaging part 28 respectively, extension in the both ends of the Width of front link 18 is provided with on the lower surface of part, have front respectively with engaging part 29,, have front miniature gears 37 at the pars intermedia of front link 18 broad wayss and along on the central portion of direction of slip.In addition, the lower surface in the pars intermedia of front link 18 broad wayss and along on the middle position of direction of slip connects transmission with belt 44.
And front is arranged on the front link 18 with broad ways state arranged side by side with belt 44 with miniature gears 37 and transmission.Front is with miniature gears 37, with the front relaying with tooth bar 33 and front with tooth bar 34 overlapping on the above-below direction and center on horizontal axle center and be arranged on freely to rotate on the front link 18.
In addition, the front relaying constitutes with engaging part 29 with engaging part 28 and front, with the state that on direction of slip, separates the pair of guide rails parts are set, so that its snap action scope becomes the identical length of length with the direction of slip of front link 18.In addition, front link 18 is along the length of direction of slip, constitutes to be less than or equal to intermediate connecting part 17 along half of direction of slip length.And then, base portion side miniature gears 36, base portion side tooth bar 31 and base portion side relaying tooth bar 32, be arranged on the avris of transmission with belt 44 broad wayss, relative with it, these front miniature gears 37, front relaying tooth bar 33 and front tooth bar 34, be arranged on transmission another avris, so that not overlapping on above-below direction with tooth bar 32 with miniature gears 36, base portion side with tooth bar 31 and base portion side relaying with base portion side with belt 44 broad wayss.
Front parts 19 constitute has a pair of foot, and its horizontal side foreign side downwards extends, and section is observed and is shaped as Ha word shape, and these front parts 19 have the 19a of mounting portion simultaneously, and it is at upper end mounting holding articles W.
In addition, above-mentioned front parts 19, with broad ways a pair of state arranged side by side above-mentioned front guide rail 24 is set, and, it constitutes, make above-mentioned front with tooth bar 34 be equivalent to this a pair of front with the position between guide rail 24 on, above-mentioned front parts 19 constitute, the 19a of mounting portion with mounting holding articles W is positioned at the mode of a pair of above-mentioned front with the top of guide rail 24, with state arranged side by side on above-below direction a pair of above-mentioned front guide rail 24 and the above-mentioned mounting 19a of portion is set.
Specifically, as Fig. 5 and shown in Figure 6, on the upper surface of the foot in front parts 19, has front with guide rail 24 with length direction along the state of direction of slip, on the lower surface in the pars intermedia of front parts 19 broad wayss, has front with tooth bar 34 along the state of direction of slip with length direction.
In addition, front with tooth bar 34 constitute with front parts 19 along the identical length of the length of direction of slip.In addition, in front parts 19, has the covering front is used guide rail 24 with migrate engaging part 29 and front a pair of dust boot 47.
Below, the switching between the outstanding state in the state that is retracted into of slide fork device 14 and side is described.
As shown in Figure 6, owing to be arranged on the base portion side miniature gears 36 on the base portion side link 16, with be arranged on base portion side on the base portion side parts 15 with tooth bar 31 and be arranged on base portion side relaying on the intermediate connecting part 17 with tooth bar 32 engagement, so utilize slip driver element 40 to slide with respect to base portion side parts 15 by base portion side link 16, base portion side is rotated with miniature gears 36, by the rotation of this base portion side with miniature gears 36, intermediate connecting part 17 slides with respect to base portion side link 16.
And, owing to extend along an avris and another avris with belt 44 with the 16 bonded assembly transmissions of base portion side link, by be arranged on a avris on the intermediate connecting part 17 reverse with pulley 45 and another avris reverse with pulley 45 after the reversing sense guiding, be connected with front link 18, so shown in above-mentioned, intermediate connecting part 17 is slided with respect to base portion side link 16, front link 18 is pulled operation with belt 44 along direction of slip by transmission, and front link 18 slides with respect to intermediate connecting part 17.
And then, owing to be arranged on the front miniature gears 37 on the front link 18, with be arranged on front relaying on the intermediate connecting part 17 with tooth bar 33 and be arranged on front on the front parts 19 with tooth bar 34 engagement, so by front link 18 shown in above-mentioned slide with respect to intermediate connecting part 17 and front with miniature gears 37 rotations, by the rotation of this front with miniature gears 37, front parts 19 slide with respect to front link 18.
Promptly, shown in Fig. 8 (A), by making base portion side link 16 carry out slide to an avris with respect to base portion side parts 15 by slip driver element 40, intermediate connecting part 17 slides to one side side with respect to base portion side link 16, front link 18 slides to one side side with respect to intermediate connecting part 17, front parts 19 slide to one side side with respect to front link 18, can switch to and make front parts 19 to a side-prominent outstanding state in side from being retracted into state thereby constitute.
In addition, shown in Fig. 8 (B), by making base portion side link 16 carry out slide to another avris with respect to base portion side parts 15 by slip driver element 40, intermediate connecting part 17 slides to the another side side with respect to base portion side link 16, front link 18 slides to the another side side with respect to intermediate connecting part 17, front parts 19 slide to the another side side with respect to front link 18, can switch to and make front parts 19 to the outstanding state in the outstanding side of opposite side from being retracted into state thereby constitute.
And, be arranged on the base portion side engaging part 26 on the base portion side link 16, its snap action scope is set up under less than the state of base portion side with the length of guide rail 21 that is arranged on the base portion side parts 15, even in order to carry out blocked operation and base portion side link 16 to be slided with respect to base portion side parts 15, also can keep base portion side and use whole snap action scopes of engaging part 26 to engage with guide rail 21 shown in above-mentioned with base portion side to the outstanding state in state or side that is retracted into.
In addition, be arranged on the base portion side relaying engaging part 27 on the base portion side link 16, its snap action scope is set up under less than the state of base portion side relaying with the length of guide rail 22 that is arranged on the intermediate connecting part 17, even in order to carry out blocked operation and intermediate connecting part 17 to be slided with respect to base portion side link 16, also can keep the base portion side relaying and use whole snap action scopes of engaging part 27 to engage with guide rail 22 shown in above-mentioned with the base portion side relaying to the outstanding state in state or side that is retracted into.
In addition, be arranged on the front relaying engaging part 28 on the front link 18, its snap action scope is set up under less than the state of front relaying with the length of guide rail 23 that is arranged on the intermediate connecting part 17, even in order to carry out blocked operation and front link 18 to be slided with respect to intermediate connecting part 17, also can keep the front relaying and use whole snap action scopes of engaging part 28 to engage with guide rail 23 shown in above-mentioned with the front relaying to the outstanding state in state or side that is retracted into.
In addition, be arranged on the front engaging part 29 on the front link 18, its snap action scope is set up under less than the state of front with the length of guide rail 24 that is arranged on the front parts 19, even in order to carry out blocked operation and front parts 19 to be slided with respect to front link 18, also can keep front and use whole snap action scopes of engaging part 29 to engage with guide rail 24 shown in above-mentioned with front to the outstanding state in state or side that is retracted into.
(embodiment 2)
This embodiment 2 is in embodiment 1, to have the cover body that covers each tooth bar.Below, the embodiment 2 of the slide fork device with cover body is described, but for the part that constitutes in the same manner with embodiment 1, the label that mark and embodiment 1 are identical, omission explanation.
As shown in Figure 9, base portion side with tooth bar 31 to be shorter than constituting of base portion side parts 15 along the length of direction of slip and the mode along the length of direction of slip of being longer than base portion side link 16, the base portion side relaying with tooth bar 32 to be shorter than constituting of intermediate connecting part 17 along the length of direction of slip and the mode along the length of direction of slip of being longer than base portion side link 16, the front relaying with tooth bar 33 being shorter than constituting of intermediate connecting part 17 along the length of direction of slip and the mode along the length of direction of slip of being longer than front link 18, front with tooth bar 34 to be shorter than constituting of front parts 19 along the length of direction of slip and the mode along the length of direction of slip of being longer than front link 18.
In addition, base portion side is longer than the length that base portion side link 16 slides with respect to base portion side parts 15 slightly with the length of tooth bar 31, the base portion side relaying is longer than the length that intermediate connecting part 17 slides with respect to base portion side link 16 slightly with the length of tooth bar 32, the front relaying is longer than the length that front link 18 slides with respect to intermediate connecting part 17 slightly with the length of tooth bar 33, front is longer than the length that front parts 19 slide with respect to front link 18 slightly with the length of tooth bar 34, these base portion side tooth bar 31, base portion side relaying tooth bar 32, the front relaying forms with equal length or roughly the same length with tooth bar 34 with tooth bar 33 and front.
And, fork device 14 is being switched under the state of the state of being retracted into, base portion side with tooth bar 31 with respect to base portion side with the pinion position of miniature gears 36, base portion side relaying with tooth bar 32 with respect to base portion side with the pinion position of miniature gears 36, front relaying with tooth bar 33 with respect to front with the pinion position of miniature gears 37, front with tooth bar 34 with respect to the pinion position of front with miniature gears 37, be arranged in the central authorities of the tooth bar length direction of tooth bar separately.
Cover body 51,52,53,54 is set, and the above-mentioned base portion side that its covering is arranged on the above-mentioned base portion side parts 15 forms part with tooth bar 33 and the above-mentioned front that is arranged on the above-mentioned front parts 19 with the tooth portion at least separately in the tooth bar 34 with tooth bar 32, the above-mentioned front relaying that is arranged on the above-mentioned intermediate connecting part 17 with tooth bar 31, the above-mentioned base portion side relaying that is arranged on the above-mentioned intermediate connecting part 17.
As cover body 51,52,53,54, be provided as and cover the base portion side cover body 51 of base portion side with the cover body of tooth bar 31, as covering the base portion side relaying cover body 52 of base portion side relaying with the cover body of tooth bar 32, as the covering front relaying front relaying cover body 53 of the cover body of tooth bar 33, and the front cover body 54 of using the cover body of tooth bar 34 as the covering front.
And, make base portion side be positioned at base portion side and be positioned at the tooth portion formation part of base portion side from the upper side covering with the top of tooth bar 31 with the top of tooth bar 31 with cover body 51, make the base portion side relaying be positioned at the base portion side relaying and be positioned at the tooth portion formation part of base portion side relaying from the below covering with the bottom of tooth bar 32 with the below of tooth bar 32 with cover body 52, make the front relaying be positioned at the front relaying and be positioned at the tooth portion formation part of front relaying from the top covering, make front be positioned at front and be positioned at the tooth portion formation part of front from the below covering with the bottom of tooth bar 34 with the below of tooth bar 34 with cover body 54 with the top of tooth bar 33 with the top of tooth bar 33 with cover body 53.
Above-mentioned base portion side cover body 51, above-mentioned base portion side relaying cover body 52, above-mentioned front relaying cover body 53 and above-mentioned front cover body 54, have a distolateral cover part 51A, 52A, 53A, 54A and another distolateral cover part 51B, 52B, 53B, 54B respectively, they cover the distolateral and tooth bar length direction of the tooth bar length direction one of the pinion position that is capped in the tooth bar respectively, and another is distolateral.
In addition, in Fig. 9, the distolateral cover part 52A (with reference to Figure 11) of base portion side relaying in the cover body 52, and the front relaying is economized sketch map not with another the distolateral cover part 53B (with reference to Figure 12) in the cover body 53.
Below, based on Figure 11 to Figure 14 cover body is described, illustrate that based on Figure 11 and Figure 13 base portion side with cover body 51 and base portion side relaying cover body 52, illustrates front relaying cover body 53 and front cover body 54 based on Figure 12 and Figure 14.
Above-mentioned one distolateral cover part 51A in above-mentioned each cover body 51,52,53,54,52A, 53A, 54A and above-mentioned another distolateral cover part 51B, 52B, 53B, 54B constitute, be accompanied by above-mentioned pinion position along tooth bar length direction variation and flexible, so that it becomes and the cooresponding length of length that is capped section of rack along the tooth bar length direction.
And, above-mentioned each cover body 51,52,53, above-mentioned one distolateral cover part 51A in 54,52A, 53A, 54A and above-mentioned another distolateral cover part 51B, 52B, 53B, 54B, by fixed enclosure 57ab, 57cd and movable cover body 56a, 56b, 56c, 56d constitutes, this fixed enclosure 57ab, 57cd by be provided with the parts fixed pedestal that the parts that are capped tooth bar can engage with being free to slide, this movable cover body 56a, 56b, 56c, 56d is provided with the parts that are capped tooth bar, along can supporting in the setting range of tooth bar length direction with being free to slide, and near said fixing cover body 57ab, the side elasticity pretension of 57cd.
With the parts (base portion side parts 15, intermediate connecting part 17 or front parts 19) that are provided with the tooth bar that is covered by above-mentioned one distolateral cover part 51A, 52A, 53A, 54A and above-mentioned another distolateral cover part 51B, 52B, 53B, 54B, on the parts that can engage (base portion side link 16 or front link 18) with being free to slide, be provided with pushing portion 71,72,73,74, it is resisted elasticity predetermincd tension and pushes the mobile above-mentioned pinion position that is accompanied by along the variation of tooth bar length direction and near the above-mentioned movable cover body 56a, 56b, 56c, the 56d that move.
Below, each cover body is described.
As Fig. 9, Figure 11 and shown in Figure 13, base portion side constitutes with cover body 51, utilize a distolateral cover part 51A to cover base portion side with carrying out ingear pinion position distolateral along the tooth bar length direction from base portion side with miniature gears 36 in the tooth bar 31, utilize another end shield part 51B covering base portion side with in the tooth bar 31 to carry out ingear pinion position from base portion side with miniature gears 36 distolateral along another of tooth bar length direction.
And base portion side constitutes with the distolateral cover part 51A in the cover body 51 and another distolateral cover part 51B, has respectively: fixed enclosure 57ab, its under the outstanding state in the outside of tooth bar length direction by base portion side link 16 fixed pedestals; And movable cover body 56a, it can be arranged on the base portion side parts 15 along the tooth bar length direction with being free to slide, covers the end of base portion side with tooth bar 31.
Base portion side parts 15 along the tooth bar length direction one distolateral and another distolateral on, respectively with base portion side with tooth bar 31 along tooth bar length direction mode arranged side by side, base portion side guiding parts 61 is set, utilization is positioned at a distolateral base portion side guiding parts 61, base portion side with the movable cover body of the distolateral cover part 51A in the cover body 51 (below be called the movable cover body of a distolateral base portion side) 56a by the support of can leading along the tooth bar length direction with being free to slide, utilization is positioned at another distolateral base portion side with guiding parts 61, base portion side with the movable cover body of another the distolateral cover part 51B in the cover body 51 (below be called the movable cover body of another distolateral base portion side) 56a quilt along the support of can leading of tooth bar length direction with being free to slide.
And, be positioned at a distolateral base portion side with guiding parts 61 be positioned at another distolateral base portion side with guiding parts 61, respectively by bar-shaped component set-up, broad ways is a pair of side by side, the inner end of this bar-like member is linked with binding parts 58a and base portion side parts 15 by inner end, and the outer end is linked with binding parts 58b and base portion side parts 15 by the outer end.In addition, at one end on side and the outboard end separately of another distolateral base portion side with movable cover body 56a, be provided with and insert base portion side with the portion that is directed to 59 in the guiding parts 61, in base portion side with the portion that is directed to 59 of movable cover body 56a and outer end with linking between the parts 58b, to be provided with base portion side usefulness compression spring 66 with the state of guiding parts 61 around base portion side.Promptly, a pair of base portion side with movable cover body 56a respectively by base portion side with compression spring 66 to the inboard elasticity pretension that becomes near fixed enclosure 57ab one side, and base portion side with the portion that is directed to 59 of movable cover body 56a be limited to than with inner end with the position that links parts 58a butt moving more in the inner part.
Base portion side in base portion side link 16 with near the miniature gears 36 one distolateral with another distolateral on, be respectively equipped with base portion side pushing portion 71, its opposing elasticity pretension and pushing move be accompanied by base portion side with the pinion position in the tooth bar 31 along the tooth bar length direction change and near the base portion side that moves with movable cover body 56a, it is distolateral mobile to one with the pinion position of tooth bar 31 to be accompanied by base portion side, near base portion side with a distolateral base portion side of miniature gears 36 with movable cover body 56a, move with 71 pushings of pushing portion by a distolateral base portion side, being accompanied by base portion side uses the pinion position of tooth bar 31 to other end side shifting, another distolateral base portion side of using miniature gears 36 near base portion side is moved with 71 pushings of pushing portion by another distolateral base portion side with movable cover body 56a.
In addition, on base portion side parts 15, be provided with and cover the base portion side guide housing 76 of base portion side with guiding parts 61, this base portion side is positioned at base portion side with guide housing 76 and covers the upper side of base portion side with guiding parts 61 with the top of guiding parts 61.
As Fig. 9, Figure 11 and shown in Figure 13, the base portion side relaying constitutes with cover body 52, cover the base portion side relaying with carrying out ingear pinion position distolateral along the tooth bar length direction from base portion side with miniature gears 36 in the tooth bar 32 by a distolateral cover part 52A, by another end shield part 52B covering base portion side relaying with in the tooth bar 32 to carry out ingear pinion position from base portion side with miniature gears 36 distolateral along another of tooth bar length direction.
And the base portion side relaying constitutes with the distolateral cover part 52A in the cover body 52 and another distolateral cover part 52B, has respectively: fixed enclosure 57ab, its with to the outstanding state in the outside of tooth bar length direction by base portion side link 16 fixed pedestals; And movable cover body 56b, it can be arranged on the intermediate connecting part 17 along the tooth bar length direction with being free to slide, covers the end of base portion side relaying with tooth bar 32.
Intermediate connecting part 17 along the tooth bar length direction one distolateral and another distolateral on, respectively with the base portion side relaying with tooth bar 32 along tooth bar length direction state arranged side by side, base portion side relaying guiding parts 62 is set, utilization is positioned at a distolateral base portion side relaying guiding parts 62, the base portion side relaying is with the movable cover body of the distolateral cover part 52A in the cover body 52 (below be called a distolateral movable cover body of base portion side relaying) 56b, by the support of can leading along the tooth bar length direction with being free to slide, utilization is positioned at another distolateral base portion side relaying guiding parts 62, the base portion side relaying with the movable cover body of another the distolateral cover part 52B in the cover body 52 (below be called another distolateral movable cover body of base portion side relaying) 56b, by the support of can leading along the tooth bar length direction with being free to slide.
And, be positioned at a distolateral base portion side relaying with guiding parts 62 be positioned at another distolateral base portion side relaying with guiding parts 62, constitute by bar-like member respectively, broad ways is a pair of side by side, the inner end of this bar-like member is linked with binding parts 58a and intermediate connecting part 17 by inner end, and the outer end is linked with binding parts 58b and intermediate connecting part 17 by the outer end.In addition, at one end on side and the outboard end separately of another distolateral base portion side relaying with movable cover body 56b, be provided with and insert the base portion side relaying with the portion that is directed to 59 in the guiding parts 62, at the base portion side relaying with the portion that is directed to 59 of movable cover body 56b and outer end with linking between the parts 58b, to be provided with base portion side relaying usefulness compression spring 67 with the state of guiding parts 62 around the base portion side relaying.Promptly, a pair of base portion side relaying with movable cover body 56b respectively by the base portion side relaying with compression spring 67 to the inboard elasticity pretension that becomes near fixed enclosure 57ab one side, and the base portion side relaying with the portion that is directed to 59 of movable cover body 56b be limited to than with inner end with the position that links parts 58a butt moving more in the inner part.
Base portion side in base portion side link 16 with near the miniature gears 36 one distolateral with another distolateral on, be respectively equipped with base portion side relaying pushing portion 72, its opposing elasticity pretension and pushing move be accompanied by the base portion side relaying with the pinion position in the tooth bar 32 along the tooth bar length direction change and near the base portion side relaying that moves with movable cover body 56b, it is distolateral mobile to one with the pinion position of tooth bar 32 to be accompanied by the base portion side relaying, near base portion side with a distolateral base portion side relaying of miniature gears 36 with movable cover body 56b, move with 72 pushings of pushing portion by a distolateral base portion side relaying, being accompanied by the base portion side relaying uses the pinion position of tooth bar 32 to other end side shifting, another distolateral base portion side relaying of using miniature gears 36 near base portion side is moved with 72 pushings of pushing portion by another distolateral base portion side relaying with movable cover body 56b.
In addition, on intermediate connecting part 17, be provided with and cover the base portion side relaying guide housing 77 of base portion side relaying with guiding parts 62, this base portion side relaying is positioned at the base portion side relaying with guide housing 77 and covers the lower side of base portion side relaying with guiding parts 62 with the below of guiding parts 62.
As shown in figure 10, one distolateral and another distolateral base portion side relaying fixed enclosure 57ab, and one distolateral and another distolateral base portion side relaying with movable cover body 56b, respectively with the both ends of Width upward the mode of lateral buckling form, formation is observed the コ word shape of opening upward along the tooth bar length direction, one distolateral and another distolateral base portion side relaying is with movable cover body 56b, to observe, be positioned at the state setting of using tooth bar 32 than the base portion side relaying of same side with the more close base portion side relaying of fixed enclosure 57ab respectively along the tooth bar length direction.
And, one distolateral and another distolateral base portion side is with movable cover body 56a, the mode that bends to the lower side with the both ends of Width forms respectively, formation is observed the コ word shape of opening downwards along the tooth bar length direction, one distolateral and another distolateral base portion side is with movable cover body 56a, to observe, be positioned at the state setting of using tooth bar 31 than the base portion side relaying that is positioned at same side with the more close base portion side of fixed enclosure 57ab respectively along the tooth bar length direction.
In addition, one distolateral and another distolateral base portion side guide housing 76, respectively to observe along the tooth bar length direction, be positioned at than the base portion side relaying that the is positioned at same side more close base portion side of fixed enclosure 57ab tooth bar 31, and be positioned at the state setting of using tooth bar 31 than base portion side with movable cover body 56a further from base portion side.
In addition, one distolateral and another distolateral base portion side relaying guide housing 77, respectively to observe along the tooth bar length direction, be positioned at than the base portion side relaying that the is positioned at same side more close base portion side relaying of fixed enclosure 57ab tooth bar 32, and be positioned at the state setting of using tooth bar 32 than base portion side relaying with movable cover body 56b further from the base portion side relaying.
And, as shown in figure 13, base portion side is also used as the fixed enclosure 57ab of base portion side relaying with the distolateral cover part 52A in the cover body 52 with the fixed enclosure 57ab of the distolateral cover part 51A in the cover body 51, in addition, base portion side is also used as the fixed enclosure 57ab of base portion side relaying with another the distolateral cover part 52B in the cover body 52 with the fixed enclosure 57ab of another the distolateral cover part 51B in the cover body 51.
In addition, be also used as base portion side with the distolateral cover part 51A in the cover body 51 and base portion side relaying with the fixed enclosure of the distolateral cover part 52A in the cover body 52 (below, be called a distolateral base portion side relaying fixed enclosure) 57ab, and be also used as base portion side with another the distolateral cover part 51B in the cover body 51 and base portion side relaying with the fixed enclosure of another the distolateral cover part 52B in the cover body 52 (below, being called another distolateral base portion side relaying fixed enclosure) 57ab constitutes, their base portion side link 16 of fastening support is along the length of direction of slip, become with base portion side parts 15 or intermediate connecting part 17 along the identical or roughly the same length of the length of tooth bar length direction.
As Fig. 9, Figure 12 and shown in Figure 14, the front relaying constitutes with cover body 53, cover the front relaying with carrying out ingear pinion position distolateral along the tooth bar length direction from front with miniature gears 37 in the tooth bar 33 by a distolateral cover part 53A, by another end shield part 53B covering front relaying with in the tooth bar 33 to carry out ingear pinion position from front with miniature gears 37 distolateral along another of tooth bar length direction.
And the front relaying constitutes with the distolateral cover part 53A in the cover body 53 and another distolateral cover part 53B, has respectively: fixed enclosure 57cd, and it is by the mode fixed pedestal of front link 18 to give prominence to the outside of tooth bar length direction; And movable cover body 56c, it can be arranged on the intermediate connecting part 17 along the tooth bar length direction with being free to slide, covers the end of front relaying with tooth bar 33.
Intermediate connecting part 17 along the tooth bar length direction one distolateral and another distolateral on, respectively the front relaying to be set with guiding parts 63 with tooth bar 33 along tooth bar length direction state arranged side by side with the front relaying, utilization is positioned at a distolateral front relaying guiding parts 63, the front relaying is with the movable cover body of the distolateral cover part 53A in the cover body 53 (below be called a distolateral movable cover body of front relaying) 56c, by the support of can leading along the tooth bar length direction with being free to slide, utilization is positioned at another distolateral front relaying guiding parts 63, the front relaying with the movable cover body of another the distolateral cover part 53B in the cover body 53 (below be called another distolateral movable cover body of front relaying) 56c, by the support of can leading along the tooth bar length direction with being free to slide.
And, be positioned at a distolateral front relaying with guiding parts 63 be positioned at another distolateral front relaying with guiding parts 63, constitute by bar-like member respectively, broad ways is a pair of side by side, the inner end of this bar-like member is linked with binding parts 58a and intermediate connecting part 17 by inner end, and the outer end is linked with binding parts 58b and intermediate connecting part 17 by the outer end.In addition, at one end on side and the outboard end separately of another distolateral front relaying with movable cover body 56c, be provided with and insert the front relaying with the portion that is directed to 59 in the guiding parts 63, at the front relaying with the portion that is directed to 59 of movable cover body 56c and outer end with linking between the parts 58b, to be provided with front relaying usefulness compression spring 68 with the state of guiding parts 63 around the front relaying.Promptly, a pair of front relaying with movable cover body 56c respectively by the front relaying with compression spring 68 to the inboard elasticity pretension that becomes near fixed enclosure 57cd one side, and the front relaying with the portion that is directed to 59 of movable cover body 56c be limited to than with inner end with the position that links parts 58a butt moving more in the inner part.
Front in front link 18 with near the miniature gears 37 one distolateral with another distolateral on, be respectively equipped with front relaying pushing portion 73, its opposing elasticity pretension and pushing move be accompanied by the front relaying with the pinion position in the tooth bar 33 along the tooth bar length direction change and near the front relaying that moves with movable cover body 56c, it is distolateral mobile to one with the pinion position of tooth bar 33 to be accompanied by the front relaying, near front with a distolateral front relaying of miniature gears 37 with movable cover body 56c, move with 73 pushings of pushing portion by a distolateral front relaying, being accompanied by the front relaying uses the pinion position of tooth bar 33 to other end side shifting, another distolateral front relaying of using miniature gears 37 near front is moved with 73 pushings of pushing portion by another distolateral front relaying with movable cover body 56c.
In addition, on intermediate connecting part 17, be provided with and cover the front relaying guide housing 78 of front relaying with guiding parts 63, this front relaying is positioned at the front relaying with guide housing 78 and covers the upper side of front relaying with guiding parts 63 with the upper side of guiding parts 63.
As Fig. 9, Figure 12 and shown in Figure 14, front constitutes with cover body 54, cover front with carrying out ingear pinion position distolateral along the tooth bar length direction from front with miniature gears 37 in the tooth bar 34 by a distolateral cover part 54A, by another end shield part 54B covering front with in the tooth bar 34 to carry out ingear pinion position from front with miniature gears 37 distolateral along another of tooth bar length direction.
And front constitutes with the distolateral cover part 54A in the cover body 54 and another distolateral cover part 54B, has respectively: fixed enclosure 57cd, its with to the outstanding state in the outside of tooth bar length direction by front parts 19 fixed pedestals; And movable cover body 56d, it can be arranged on the front parts 19 along the tooth bar length direction with being free to slide, covers the end of front with tooth bar 34.
Front parts 19 along the tooth bar length direction one distolateral and another distolateral on, respectively with front with tooth bar 34 along tooth bar length direction state arranged side by side, front guiding parts 64 is set, utilization is positioned at a distolateral front guiding parts 64, front with the movable cover body of the distolateral cover part 54A in the cover body 54 (below be called a distolateral movable cover body of front relaying) 56d by the support of can leading along the tooth bar length direction with being free to slide, utilization is positioned at another distolateral front with guiding parts 64, front with the movable cover body of another the distolateral cover part 54B in the cover body 54 (below be called another distolateral movable cover body of front relaying) 56d quilt along the support of can leading of tooth bar length direction with being free to slide.
And, be positioned at a distolateral front with guiding parts 64 be positioned at another distolateral front with guiding parts 64, constitute by bar-like member respectively, broad ways is a pair of side by side, the inner end of this bar-like member is linked with binding parts 58a and front parts 19 by inner end, and the outer end is linked with binding parts 58b and front parts 19 by the outer end.In addition, at one end on side and the outboard end separately of another distolateral front with movable cover body 56d, be provided with and insert front with the portion that is directed to 59 in the guiding parts 64, in front with the portion that is directed to 59 of movable cover body 56d and outer end with linking between the parts 58b, to be provided with front usefulness compression spring 69 with the state of guiding parts 64 around front.Promptly, a pair of front with movable cover body 56d respectively by front with compression spring 69 to the inboard elasticity pretension that becomes near fixed enclosure 57cd one side, and front with the portion that is directed to 59 of movable cover body 56d be limited to than with inner end with the position that links parts 58a butt moving more in the inner part.
Front in front link 18 with near the miniature gears 37 one distolateral with another distolateral on, be respectively equipped with front pushing portion 74, its opposing elasticity pretension and pushing move be accompanied by front with the pinion position in the tooth bar 34 along the tooth bar length direction change and near the front that moves with movable cover body 56d, it is distolateral mobile to one with the pinion position of tooth bar 34 to be accompanied by front, near front with a distolateral front of miniature gears 37 with movable cover body 56d, move with 74 pushings of pushing portion by a distolateral front, being accompanied by front uses the pinion position of tooth bar 34 to other end side shifting, another distolateral front of using miniature gears 37 near front is moved with 74 pushings of pushing portion by another distolateral front with movable cover body 56d.
In addition, on front parts 19, be provided with and cover the front guide housing 79 of front with guiding parts 64, this front is positioned at front with guide housing 79 and covers the lower side of front with guiding parts 64 with the below of guiding parts 64.
As shown in figure 10, one distolateral and another distolateral front fixed enclosure 57cd, and one distolateral and another distolateral front with movable cover body 56d, respectively with the both ends of Width upward the mode of lateral buckling form, formation is observed the コ word shape of opening upward along the tooth bar length direction, one distolateral and another distolateral front, is positioned at than the state setting with the more close front usefulness of fixed enclosure 57cd tooth bar 34 of the front of same side respectively to observe along the tooth bar length direction with movable cover body 56d.
And, one distolateral and another distolateral front relaying is with movable cover body 56c, the mode that bends to the lower side with the both ends of Width forms respectively, formation is observed the コ word shape of opening downwards along the tooth bar length direction, one distolateral and another distolateral front relaying is with movable cover body 56c, to observe, be positioned at the state setting of using tooth bar 33 than the front that is positioned at same side with the more close front relaying of fixed enclosure 57cd respectively along the tooth bar length direction.
In addition, one distolateral and another distolateral front relaying guide housing 78, respectively to observe along the tooth bar length direction, be positioned at than the front that the is positioned at same side more close front relaying of fixed enclosure 57cd tooth bar 33, and be positioned at the state setting of using tooth bar 33 than front relaying with movable cover body 56c further from the front relaying.
In addition, one distolateral and another distolateral front guide housing 79, respectively to observe along the tooth bar length direction, be positioned at than the front that the is positioned at same side more close front of fixed enclosure 57cd tooth bar 34, and be positioned at the state setting of using tooth bar 34 than front with movable cover body 56d further from front.
And, the front relaying is also used as the fixed enclosure 57cd of front with the distolateral cover part 54A in the cover body 54 with the fixed enclosure 57cd of the distolateral cover part 53A in the cover body 53, in addition, the front relaying is also used as the fixed enclosure 57cd of front with another the distolateral cover part 54B in the cover body 54 with the fixed enclosure 57cd of another the distolateral cover part 53B in the cover body 53.
In addition, be also used as the front relaying with the distolateral cover part 53A in the cover body 53 and front with the fixed enclosure of the distolateral cover part 54A in the cover body 54 (below, be called a distolateral front fixed enclosure) 57cd, and be also used as the front relaying with another the distolateral cover part 53B in the cover body 53 and front with the fixed enclosure of another the distolateral cover part 54B in the cover body 54 (below, be called another distolateral front fixed enclosure) 57cd constitutes, their front link 18 of fastening support along the length of direction of slip become with intermediate connecting part 17 or front 19 along the identical or roughly the same length of the length of tooth bar length direction.
Each fixed enclosure 57ab, 57cd and each movable cover body 56a, 56b, 56c, 56d are illustrated.
As shown in figure 15, base portion side relaying fixed enclosure 57ab, be accompanied by fork device 14 to being retracted into the outstanding state switching in state or side and moving integratedly with base portion side link 16, with respect to base portion side tooth bar 31 and base portion side relaying tooth bar 32, and base portion side with movable cover body 56a and base portion side relaying with movable cover body 56b, relatively move along the tooth bar length direction.
In addition, front fixed enclosure 57cd, be accompanied by fork device 14 to being retracted into the outstanding state switching in state or side and moving integratedly with front link 18, with respect to front relaying tooth bar 33 and front tooth bar 34, and the front relaying with movable cover body 56c and front with movable cover body 56d, relatively move along the tooth bar length direction.
In addition, base portion side moves integratedly with movable cover body 56a and base portion side parts 15, the base portion side relaying moves with movable cover body 56c and intermediate connecting part 17 integratedly with movable cover body 56b and front relaying, and front moves integratedly with movable cover body 56d and front parts 19.
Main points are, distolateral cover part 51A in each cover body 51,52,53,54,52A, 53A, 54A and another distolateral cover part 51B, 52B, 53B, 54B constitute, being accompanied by the pinion position changes along the tooth bar length direction, movable cover body 56a, 56b, 56c, 56d relatively move along the tooth bar length direction with respect to fixed enclosure 57ab, 57cd, thereby flexible along the tooth bar length direction.
In addition, base portion side is with movable cover body 56a.The base portion side relaying with movable cover body 56b, front relaying with movable cover body 56c and front with movable cover body 56d, respectively under the state of pushing cooresponding portion 71,72,73,74 butts with it, relatively move along the tooth bar length direction with respect to the parts (base portion side parts 15, intermediate connecting part 17 and front parts 19) that support this cover body, thereby slide integratedly with fixed enclosure 57ab, 57cd.
Distolateral cover part 51A in each cover body 51,52,53,54 under the state that fork device 14 is switched to the state of being retracted into, 52A, 53A, 54A and another distolateral cover part 51B, 52B, 53B, 54B are illustrated.
Shown in Figure 15 (A), fork device 14 is being switched under the state of the state of being retracted into, base portion side with tooth bar 31 and base portion side relaying with in the tooth bar 32 from base portion side link 16 to a side-prominent one end side portion, cover with fixed enclosure 57ab by a distolateral base portion side relaying, base portion side is used being covered with fixed enclosure 57ab by another distolateral base portion side relaying to another side-prominent one end side portion of the opposing party from base portion side link 16 in the tooth bar 32 with tooth bar 31 and base portion side relaying, in addition, the front relaying is used being covered with fixed enclosure 57cd by a distolateral front to a side-prominent one end side portion from front link 18 in the tooth bar 34 with tooth bar 33 and front, and the front relaying is covered with fixed enclosure 57cd by another distolateral front with another one end side portion of giving prominence to opposite side from front link 18 in the tooth bar 34 with tooth bar 33 and front.
In addition, fork device 14 is being switched under the state of the state of being retracted into, base portion side covers with movable cover body 56a with an end of tooth bar 31 and the base portion side that the other end is distolateral by one and another is distolateral, the base portion side relaying covers with movable cover body 56b with an end of tooth bar 32 and the base portion side relaying that the other end is distolateral by one and another is distolateral, the front relaying covers with cover body 56c with an end of tooth bar 33 and the front relaying that the other end is distolateral by one and another is distolateral, and front covers with cover body 56d with an end of tooth bar 34 and the front that the other end is distolateral by one and another is distolateral.
Below, the action with a distolateral cover part 51A, 52A, 53A, 54A and another distolateral cover part 51B in fork device 14 each cover body 51,52,53,54 when the outstanding state in side switches, 52B, 53B, 54B is illustrated.In addition, the explanation of the state that switches to the outstanding state of opposite side for fork device 14 because except action and a side-prominent state along identical the tooth bar length direction symmetry, so the omission explanation.
If fork device 14 begins to switch to a side-prominent state from being retracted into state, then because base portion side uses the pinion position of tooth bar 33 to change to an avris of tooth bar length direction with tooth bar 31 and front relaying, the base portion side relaying uses the pinion position of tooth bar 34 to change to another avris of tooth bar length direction with tooth bar 32 and front, base portion side usefulness tooth bar 31 and front relaying the part in the tooth bar 33 from the tooth bar engage position to another avris, and the base portion side relaying is elongated with the part from tooth bar engage position to an avris in the tooth bar 34 with tooth bar 32 and front, in addition, base portion side usefulness tooth bar 31 and front relaying the part in the tooth bar 33 from tooth bar engage position to an avris, and the base portion side relaying shortens with the part from the tooth bar engage position to another avris in the tooth bar 34 with tooth bar 32 and front.
So, extremely shown in Figure 14 as Figure 11, if fork device carries out to a certain degree switching from being retracted into state to a side-prominent state, then because another distolateral base portion side is used the fixed enclosure 57ab outstanding with movable cover body 56a from another distolateral base portion side relaying, base portion side is extended with another the distolateral cover part 51B in the cover body 51, to become and the cooresponding length of length that is capped section of rack, so can cover whole base portion side with in the tooth bars 31 from base portion side link 16 to side-prominent on one side part, in addition, because a distolateral base portion side relaying is used the fixed enclosure 57ab outstanding with movable cover body 56b from a distolateral base portion side relaying, the base portion side relaying extends with the distolateral cover part 52A in the cover body 52, to become and the cooresponding length of length that is capped section of rack, so can cover whole base portion side relayings with in the tooth bars 32 from base portion side link 16 to side-prominent on one side part, in addition, because another distolateral front relaying is used the fixed enclosure 57cd outstanding with movable cover body 56c from another distolateral front, the front relaying extends with another the distolateral cover part 53B in the cover body 53, to become and the cooresponding length of length that is capped section of rack, so can cover whole front relayings with in the tooth bars 33 from front link 18 to the side-prominent part of another side, in addition, because a distolateral front is used the fixed enclosure 57cd outstanding with movable cover body 56d from a distolateral front, front is extended with the distolateral cover part 54A in the cover body 54, becoming and be capped the cooresponding length of length of section of rack, thus can cover whole front with in the tooth bars 34 from front link 18 to side-prominent on one side part.
If fork device continues to switch to the outstanding state in side from being retracted into state, then a distolateral base portion side with movable cover body 56a opposing by base portion side with the elasticity predetermincd tension of compression spring 66 generations by base portion side with distolateral the carry out bulldozing operation of pushing portion 71 to moving range, another distolateral base portion side relaying with movable cover body 56b opposing by the base portion side relaying with the elasticity predetermincd tension of compression spring 67 generations by the base portion side relaying with pushing portion 72 another distolateral bulldozing operation that carries out to moving range, the elasticity predetermincd tension that one distolateral front relaying is produced with compression spring 68 by the front relaying with movable cover body 56c opposing and by the front relaying with distolateral the carry out bulldozing operation of pushing portion 73 to moving range, another distolateral front is resisted by front with the elasticity predetermincd tension of compression spring 69 generations by front with pushing portion 74 another distolateral bulldozing operation that carries out to moving range with movable cover body 56d.
Promptly, at fork device 14 from being retracted into state when the outstanding state in side switches, constitute a distolateral base portion side and do not contact base portion side miniature gears 36 with movable cover body 56b with movable cover body 56a and another distolateral base portion side relaying, in addition, a distolateral front relaying does not contact front miniature gears 37 with movable cover body 56c and another distolateral front with movable cover body 56d.
Fork device 14 from the side outstanding state when the state that is retracted into switches, another distolateral base portion side is retracted into fixed enclosure 57ab side to another distolateral base portion side relaying with movable cover body 56a, base portion side shortens with another the distolateral cover part 51B in the cover body 51, to become and the cooresponding length of length that is capped section of rack, in addition, one distolateral base portion side relaying is retracted into fixed enclosure 57ab side to a distolateral base portion side relaying with movable cover body 56b, the base portion side relaying shortens with the distolateral cover part 52A in the cover body 52, to become and the cooresponding length of length that is capped section of rack, in addition, another distolateral front relaying is retracted into fixed enclosure 57cd side to another distolateral front with movable cover body 56c, the front relaying shortens with another the distolateral cover part 53B in the cover body 53, to become and the cooresponding length of length that is capped section of rack, in addition, one distolateral front is retracted into fixed enclosure 57cd side to a distolateral front with movable cover body 56d, front shortens with the distolateral cover part 54A in the cover body 54, to become and the cooresponding length of length that is capped section of rack.
In addition, give prominence to state from the side when the state that is retracted into switches at fork device 14, one distolateral base portion side is utilized by base portion side with movable cover body 56a and is urged the other end that is operated to moving range with the elasticity predetermincd tension of compression spring 66 generations, another distolateral base portion side relaying is urged an end that is operated to moving range with movable cover body 56b by the base portion side relaying with compression spring 67, one distolateral front relaying is urged the other end that is operated to moving range with movable cover body 56c by the leading section relaying with compression spring 68, another distolateral front is urged an end that is operated to moving range with movable cover body 56d by front with compression spring 69.
And, outstanding state switches to being retracted into state if fork device 14 continues from the side, then a distolateral base portion side is retracted into fixed enclosure 57ab side to a distolateral base portion side relaying with movable cover body 56a, in addition, another distolateral base portion side relaying is retracted into fixed enclosure 57ab side to another distolateral base portion side relaying with movable cover body 56b, in addition, one distolateral front relaying is retracted into fixed enclosure 57cd side to a distolateral front with movable cover body 56c, in addition, another distolateral front is retracted into fixed enclosure 57cd side to another distolateral front with movable cover body 56d.
(other embodiments)
(1) in the above-described embodiment, base portion side is set up in parallel on above-below direction in overlapping mode with tooth bar 32 with tooth bar 31 and base portion side relaying, make base portion side overlapping and center on horizontal axle center and be provided with freely to rotate on above-below direction with tooth bar 31 and base portion side relaying with tooth bar 32 with miniature gears 36 and base portion side, but also can be that base portion side is set up in parallel on Width in overlapping mode with tooth bar 32 with tooth bar 31 and base portion side relaying, make base portion side overlapping and center on vertical axle center and be provided with freely to rotate on Width with tooth bar 31 and base portion side relaying with tooth bar 32 with miniature gears 36 and base portion side.
In addition, the front relaying is set up in parallel on above-below direction in overlapping mode with tooth bar 33 and front tooth bar 34, make front overlapping and center on horizontal axle center and be provided with freely to rotate on above-below direction with tooth bar 33 and front with tooth bar 34 with miniature gears 37 and front relaying, but also can be that the front relaying is set up in parallel on Width in overlapping mode with tooth bar 33 and front tooth bar 34, front be overlapping and center on vertical axle center and be provided with freely to rotate on Width with tooth bar 34 with tooth bar 33 and front with miniature gears 37 and front relaying.
In addition, in the above-described embodiment, with base portion side miniature gears 36, base portion side is arranged on the avris of transmission with the Width of belt 44 with tooth bar 31 and base portion side relaying with tooth bar 32, with front miniature gears 37, the front relaying is arranged on transmission another avris with the Width of belt 44 with tooth bar 33 and front with tooth bar 34, but also can be with base portion side miniature gears 36, base portion side tooth bar 31 and base portion side relaying tooth bar 32, and front miniature gears 37, the front relaying is concentrated with tooth bar 34 with tooth bar 33 and front and is arranged on an avris or another avris of transmission with the Width of belt 44.
In addition, in the above-described embodiment, make front miniature gears 37, front relaying tooth bar 33 and front tooth bar 34, to be provided with tooth bar 32 nonoverlapping mode on above-below direction with tooth bar 31 and base portion side relaying with miniature gears 36, base portion side with base portion side, but also can make front with miniature gears 37, front relaying with tooth bar 33 and front with tooth bar 34, to be provided with tooth bar 32 overlapping mode on above-below direction with tooth bar 31 and base portion side relaying with miniature gears 36, base portion side with base portion side.
(2) in the above-described embodiment, make funicular entity 44 be undertaken the front link is constituted to the draw operations of an avris with to the annular belt of the draw operations of another avris by 1, but also can make funicular entity 44 by the front link is carried out the belt of draw operations and the front link is constituted to such 2 belts of belt that another avris carries out draw operations to an avris, in addition, funicular entity 44 also can be made of chain or metal wool etc.
(3) in the above-described embodiment, constitute the Frictional Slipping formula that engaging part can be engaged with guide rail to free Frictional Slipping respectively, but also can constitute the roller that engaging part can free rollably be engaged with guide rail respectively.
(4) in the above-described embodiment, make a pair of base portion side arranged side by side on above-below direction with engaging part 27 in overlapping mode with engaging part 26 and a pair of base portion side relaying, but also can make a pair of base portion side use engaging part 26 and a pair of base portion side relaying to use engaging part 27 arranged side by side on Width, also can make a pair of base portion side arranged side by side on above-below direction and Width with engaging part 27 in nonoverlapping mode with engaging part 26 and a pair of base portion side relaying in overlapping mode.
In addition, in the above-described embodiment, make a pair of base portion side relaying be positioned at the top of a pair of base portion side, but also can make a pair of base portion side relaying be positioned at the below of a pair of base portion side with engaging part 26 with engaging part 27 with engaging part 26 with engaging part 27.
(5) in the above-described embodiment, make a pair of base portion side relaying arranged side by side on above-below direction and Width with guide rail 23 in nonoverlapping mode with guide rail 22 and a pair of front relaying, but also can make a pair of base portion side relaying use guide rail 22 and a pair of front relaying to use guide rail 23 arranged side by side on above-below direction, also can make a pair of base portion side relaying arranged side by side on Width with guide rail 23 in overlapping mode with guide rail 22 and a pair of front relaying in overlapping mode.
In addition, in the above-described embodiment, the front relaying is positioned at than the inboard of base portion side relaying with guide rail 22 more close Widths with guide rail 23, but the front relaying is positioned at than the outside of base portion side relaying with guide rail 22 more close Widths with guide rail 23.
(6) in the above-described embodiment, make a pair of front relaying arranged side by side on above-below direction with engaging part 29 in overlapping mode with engaging part 28 and a pair of front, but also can make a pair of front relaying use engaging part 28 and a pair of front to use engaging part 29 arranged side by side on Width, also can make a pair of front relaying arranged side by side on above-below direction and Width with engaging part 29 in nonoverlapping mode with engaging part 28 and a pair of front in overlapping mode.
In addition, in the above-described embodiment, make a pair of front be positioned at the top of a pair of front relaying, but also can make a pair of front be positioned at the below of a pair of front relaying with engaging part 28 with engaging part 29 with engaging part 28 with engaging part 29.
(7) in the above-described embodiment, make a pair of front arranged side by side on above-below direction in overlapping mode with guide rail 24 and the 19a of mounting portion, but also can make a pair of front arranged side by side on Width in overlapping mode, also can make a pair of front arranged side by side on above-below direction and Width in nonoverlapping mode with guide rail 24 and the 19a of mounting portion with guide rail 24 and the 19a of mounting portion.
(8) in the above-described embodiment, base portion side usefulness, base portion side relaying usefulness, front relaying are used and the front tooth bar, lay respectively on the position that is equivalent between the pair of guide rails, but base portion side usefulness, base portion side relaying usefulness, front relaying usefulness and front are positioned on the position that is equivalent to the pair of guide rails lateral outer side with part or all of tooth bar.
In addition, in the above-described embodiment, base portion side is laid respectively on the position that is equivalent between a pair of engaging part with miniature gears 37 with miniature gears 36 and front, but base portion side is positioned on the position of the lateral outer side that is equivalent to a pair of engaging part with one or two of miniature gears 37 with miniature gears 36 and front.
(9) in the above-described embodiment, base portion side with, base portion side relaying with, front relaying with and front with guide rail respectively with on Width side by side a pair of mode be provided with, but also can be that part or all broad ways of above-mentioned guide rail only is provided with one.In addition, base portion side with, base portion side relaying with, front relaying with and front with engaging part respectively with on Width side by side a pair of mode be provided with, broad ways only is provided with one with the guide rail quantity that engages is corresponding but also can make part or all of above-mentioned engaging part.
(10) in the above-described embodiment, slide fork device 14 is arranged on the stack crane 2, but also slide fork device 14 can be arranged at the base or be arranged on stationary state on the fixed way on ground etc. of travelling that is travelling on ground etc.
(11) in the above-described embodiment, fork device 14 constitutes in the overlapping upward mode of order of base portion side parts 15, base portion side link 16, intermediate connecting part 17, front link 18, front parts 19, but also can be fork device 14 with the order of base portion side parts 15, base portion side link 16, intermediate connecting part 17, front link 18, front parts 19 to the lower side or the overlapping mode of cross side constitute.
(12) in the above-described embodiment, make base portion side be positioned at the upper side of base portion side with tooth bar 31 with cover body 51, make the base portion side relaying be positioned at the lower side of base portion side relaying with tooth bar 32 with cover body 52, make the front relaying be positioned at the top of front relaying with tooth bar 33 with cover body 53, make front be positioned at the below of front with tooth bar 34 with cover body 54, but also can be with base portion side cover body 51, base portion side relaying cover body 52, the front relaying with cover body 53 and front with cover body 54 with respect to the position of its tooth bar that covers and appropriately change, for example, tooth portion in tooth bar forms under the situation on the horizontal sidepiece that part is positioned at tooth bar, make cover body be positioned at a horizontal side of tooth bar, in addition, tooth portion in tooth bar forms under the situation of bottom that part is positioned at tooth bar, makes cover body be positioned at the below etc. of tooth bar.
(13) in above-mentioned embodiment 1, make base portion side use tooth bar 31 to constitute along the identical length of the length of direction of slip with base portion side parts 15, the base portion side relaying uses tooth bar 33 to constitute along the identical length of the length of direction of slip with intermediate connecting part 17 with tooth bar 32 and front relaying, front uses tooth bar 34 to constitute along the identical length of the length of direction of slip with front parts 19, but also can with above-mentioned embodiment 2 in the same manner, base portion side is constituted along the length of direction of slip to be shorter than base portion side parts 15 with tooth bar 31, the base portion side relaying is constituted along the length of direction of slip to be shorter than intermediate connecting part 17 with tooth bar 33 with tooth bar 32 and front relaying, make front with tooth bar 34 to be shorter than the length formation of front parts 19 along direction of slip.
(14) in above-mentioned embodiment 2, cover body is set, to cover whole base portion side tooth bar 31, base portion side relaying tooth bar 32, front relaying tooth bar 33 and front tooth bar 34, but also can be to constitute in the mode that cover body covers the tooth bar of the part in a plurality of tooth bars, for example with cover body cover base portion side relaying that flank in a plurality of tooth bars is positioned at lower side with tooth bar 32 and front with tooth bar 34.
(15) in above-mentioned embodiment 2, another distolateral cover part of a distolateral cover partial sum of each cover body is made of fixed enclosure and movable cover body, but another distolateral cover part of a distolateral cover partial sum of cover body only is made of fixed enclosure, another distolateral cover part of a distolateral cover partial sum of cover body only is made of movable cover body.
In addition, in above-mentioned embodiment 2, make another distolateral cover part of a distolateral cover partial sum of each cover body, so that fixed enclosure and movable cover body relatively slide and flexible mode constitutes along the tooth bar length direction, but also can be another distolateral cover part of a distolateral cover partial sum of each cover body, constitute by flexible cover body of the snake abdomen shape that freely stretches or coiled coiling cover body.
(16) in above-mentioned embodiment 2, movable cover body is arranged on base portion side parts 15, intermediate connecting part 17 and the front parts 19 in the mode that can be free to slide along the tooth bar length direction, but also can make the movable hood body be arranged on base portion side link 16 and the fixed enclosure 56ab that has thereof, front link 18 in the mode that can be free to slide along the tooth bar length direction and the fixed enclosure 56cd that has on.
(17) in above-mentioned embodiment 2, make guiding parts 61,62,63,64 being provided with along tooth bar length direction mode arranged side by side, but also can make guiding parts 61,62,63,64 to be provided with tooth bar 31,32,33,34 mode arranged side by side on Width with respect to tooth bar 31,32,33,34.
(18) in above-mentioned embodiment 2, dust boot 47 is not set, but also can with above-mentioned embodiment 1 in the same manner, dust boot 47 is set.

Claims (10)

1. slide fork device, it constitutes front parts that article support usefulness with respect to the operation of advancing and retreat of base portion side parts, it is characterized in that, is provided with:
The base portion side link, it has the base portion side engaging part, and this base portion side can engage with guide rail with base portion side on being arranged on above-mentioned base portion side parts with engaging part with being free to slide;
Intermediate connecting part, it has base portion side relaying guide rail, and this base portion side relaying can engage with engaging part with base portion side relaying on being arranged on this base portion side link with guide rail with being free to slide; And
The front link, it has front relaying engaging part and front engaging part, this front relaying can engage with guide rail with front relaying on being arranged on this intermediate connecting part with engaging part with being free to slide, this front can engage with guide rail with front on being arranged on above-mentioned front parts with engaging part with being free to slide
Above-mentioned base portion side engaging part; So that its snap action scope arranges less than the state formula of above-mentioned base portion side with the length of guide rail; Above-mentioned base portion side relaying engaging part; So that its snap action scope is less than the state setting of above-mentioned base portion side relaying with the length of guide rail; Above-mentioned front distolateral relaying engaging part; So that its snap action scope is less than the state setting of above-mentioned front distolateral relaying with the length of guide rail; The above-mentioned front distolateral engaging part of using; So that its snap action scope is less than the above-mentioned front distolateral state setting of using the length of guide rail
Above-mentioned base portion side link and front link be along the length of direction of slip, less than the length of above-mentioned intermediate connecting part,
Be provided with the advance and retreat driver element, it makes above-mentioned base portion side all engage with guide rail with above-mentioned base portion side in the snap action scopes with engaging part keeping, above-mentioned base portion side relaying is all being engaged with guide rail with above-mentioned base portion side relaying in the snap action scope with engaging part, above-mentioned front relaying is all being engaged with guide rail with above-mentioned front relaying in the snap action scope with engaging part, and make above-mentioned front with engaging part in whole snap action scopes with state that above-mentioned front engages with guide rail under, in order to switch to the outstanding state in the state of being retracted into or side, make above-mentioned base portion side link carry out slide with respect to above-mentioned base portion side parts, make above-mentioned intermediate connecting part carry out slide with respect to above-mentioned base portion side link, make above-mentioned front link carry out slide with respect to above-mentioned intermediate connecting part, and make above-mentioned front parts carry out slide with respect to above-mentioned front link, this is retracted into state, above-mentioned base portion side link is moved with respect to above-mentioned base portion side parts, on the midway location that is located at the scope that can move with the length direction of guide rail along above-mentioned base portion side, above-mentioned intermediate connecting part is moved with respect to above-mentioned base portion side link, on the midway location that is located at the scope that can move with the length direction of guide rail along above-mentioned base portion side relaying, above-mentioned front link is moved with respect to above-mentioned intermediate connecting part, on the midway location that is located at the scope that can move with the length direction of guide rail along above-mentioned front relaying, and above-mentioned front parts are moved with respect to above-mentioned front link, on the midway location that is located at the scope that can move with the length direction of guide rail along above-mentioned front, the outstanding state in this side is, make above-mentioned base portion side link with respect to the distolateral or other end side shifting of above-mentioned base portion side parts to its scope that can move, make above-mentioned intermediate connecting part with respect to the distolateral or other end side shifting of above-mentioned base portion side link to its scope that can move, make above-mentioned front link with respect to the distolateral or other end side shifting of above-mentioned intermediate connecting part to its scope that can move, make above-mentioned front parts with respect to the distolateral or other end side shifting of above-mentioned front link to its scope that can move
This advance and retreat driver element has: the base portion side miniature gears, its be arranged on base portion side on the above-mentioned base portion side parts with tooth bar and be arranged on base portion side relaying on the above-mentioned intermediate connecting part with tooth bar ingear state, be arranged on the above-mentioned base portion side link; The front miniature gears, its be arranged on front relaying on the above-mentioned intermediate connecting part with tooth bar and be arranged on front on the above-mentioned front parts with tooth bar ingear state, be arranged on the above-mentioned front link; Funicular entity, it is connected with above-mentioned base portion side link and extends to an avris of direction of slip and another avris, by the inverted guidance of the inverted guidance of an avris that is arranged on above-mentioned intermediate connecting part and another avris after the reversing sense guiding, be connected with above-mentioned front link; And the slip driver element, it makes above-mentioned base portion side link carry out slide with respect to above-mentioned base portion side parts.
2. slide fork device as claimed in claim 1 is characterized in that,
Constitute above-mentioned engaging part respectively with above-mentioned guide rail can be free the Frictional Slipping ground Frictional Slipping formula that engage.
3. slide fork device as claimed in claim 1 or 2 is characterized in that,
Above-mentioned funicular entity is made of the belt of ring-type.
4. slide fork device as claimed in claim 1 or 2 is characterized in that,
Above-mentioned base portion side component set-up is, with a pair of side by side state above-mentioned base portion side guide rail is set on the Width that intersects with direction of slip, and, make above-mentioned base portion side tooth bar, on the position that is equivalent between this a pair of base portion side usefulness guide rail,
Above-mentioned base portion side link constitutes, on Width, above-mentioned base portion side is set with engaging part and above-mentioned base portion side relaying engaging part respectively with arranged side by side a pair of state, and, make above-mentioned base portion side with miniature gears and above-mentioned funicular entity, on the position that is equivalent to reach between this a pair of base portion side usefulness engaging part between a pair of base portion side relaying usefulness engaging part
Above-mentioned intermediate connecting part constitutes, on Width, above-mentioned base portion side relaying is set with guide rail and above-mentioned front relaying guide rail respectively with arranged side by side a pair of state, and, make above-mentioned base portion side relaying with tooth bar and above-mentioned front relaying tooth bar, on the position that is equivalent to reach between this a pair of base portion side relaying usefulness guide rail between a pair of front relaying usefulness guide rail
Above-mentioned front link constitutes, on Width, above-mentioned front relaying is set with engaging part and above-mentioned front engaging part respectively with arranged side by side a pair of state, and, make above-mentioned front with miniature gears and above-mentioned funicular entity, on the position that is equivalent to reach between this a pair of front relaying usefulness engaging part between a pair of front usefulness engaging part
Above-mentioned front parts are provided with above-mentioned front guide rail with a pair of state arranged side by side on Width, and, make above-mentioned front tooth bar, on the position that is equivalent between this a pair of front usefulness guide rail.
5. slide fork device as claimed in claim 4 is characterized in that,
Above-mentioned base portion side link constitutes, be positioned at the mode of a pair of above-mentioned base portion side with a pair of above-mentioned base portion side relaying with engaging part with the engaging part top, with a pair of above-mentioned base portion side engaging part and a pair of above-mentioned base portion side relaying engaging part, be set to state arranged side by side on above-below direction
Above-mentioned intermediate connecting part constitutes, be positioned at than the mode of a pair of above-mentioned base portion side relaying with guide rail with a pair of above-mentioned front relaying with the inboard of the more close Width of guide rail, with a pair of above-mentioned base portion side relaying guide rail and a pair of above-mentioned front relaying guide rail, be set to state arranged side by side on Width
Above-mentioned front link constitutes, be positioned at the mode of a pair of above-mentioned front relaying with a pair of above-mentioned front with engaging part with the engaging part top, with a pair of above-mentioned front relaying engaging part and a pair of above-mentioned front engaging part, be set to state arranged side by side on above-below direction
Above-mentioned front component set-up is, is positioned at the mode of a pair of above-mentioned front with the guide rail top with the mounting portion of mounting holding articles, will a pair of above-mentioned front usefulness guide rail and above-mentioned mounting portion, be set to state arranged side by side on above-below direction.
6. slide fork device as claimed in claim 5 is characterized in that,
Above-mentioned intermediate connecting part, be positioned at the mode of a pair of above-mentioned base portion side relaying with a pair of above-mentioned front relaying with guide rail with the guide rail below, a pair of above-mentioned base portion side relaying with guide rail and a pair of above-mentioned front relaying guide rail, is set to state arranged side by side on above-below direction.
7. slide fork device as claimed in claim 1 or 2 is characterized in that,
Be provided with cover body, the above-mentioned base portion side that its covering is arranged on the above-mentioned base portion side parts forms part with tooth bar and the above-mentioned front that is arranged on the above-mentioned front parts with the portion of tooth at least in the tooth bar with tooth bar, the above-mentioned front relaying that is arranged on the above-mentioned intermediate connecting part with tooth bar, the above-mentioned base portion side relaying that is arranged on the above-mentioned intermediate connecting part.
8. slide fork device as claimed in claim 7 is characterized in that,
As the above-mentioned base portion side of the covering of above-mentioned cover body with the cover body of tooth bar, cover above-mentioned base portion side relaying with the cover body of tooth bar, the above-mentioned front relaying of covering with the cover body of tooth bar and cover above-mentioned front and constitute respectively with the cover body of tooth bar, have and cover tooth bar length direction one distolateral and another distolateral another the distolateral cover part of a distolateral cover partial sum of tooth bar length direction that is capped the pinion position in the tooth bar respectively
Above-mentioned one distolateral cover part and above-mentioned another distolateral cover part in above-mentioned each cover body, with along with above-mentioned pinion position changes and constitutes along the flexible mode of tooth bar length direction along the tooth bar length direction, so that it becomes and the cooresponding length of length that is capped section of rack.
9. slide fork device as claimed in claim 8 is characterized in that,
Above-mentioned one distolateral cover part in above-mentioned each cover body and above-mentioned another distolateral cover part are made up of fixed enclosure and movable cover body, this fixed enclosure by be provided with the parts fixed pedestal that the parts that are capped tooth bar can engage with being free to slide, this movable cover body by being provided with the parts that are capped tooth bar along supporting in the setting range of tooth bar length direction with being free to slide, and by near said fixing cover body one side elasticity pretension
With parts that the parts that are provided with the tooth bar that is covered by above-mentioned one distolateral cover part and above-mentioned another distolateral cover part can engage with being free to slide on, be provided with pushing portion, it is resisted elasticity predetermincd tension and pushes the mobile above-mentioned pinion position that is accompanied by along the variation of tooth bar length direction and near the above-mentioned movable cover body that moves.
10. slide fork device as claimed in claim 1 is characterized in that,
Above-mentioned base portion side parts, above-mentioned intermediate connecting part and above-mentioned front parts are identical or roughly the same along the length of direction of slip,
Above-mentioned base portion side link and front link are identical or roughly the same along the length of direction of slip.
CNB2007101110390A 2006-06-13 2007-06-13 Slide fork device Active CN100560470C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006163437 2006-06-13
JP2006163437 2006-06-13
JP2007068957 2007-03-16

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CN100560470C CN100560470C (en) 2009-11-18

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CN108466979A (en) * 2018-06-22 2018-08-31 昆山华恒工程技术中心有限公司 Retractable fork and piler
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