JPH08270646A - Sliding device - Google Patents

Abstract

PURPOSE: To provide a slide device to ensure movement of a slide body even when parallelism of a pair of guide rails is slightly adverse, the movement of a slide body is ensured, and a body to be slid is direct-actably supported, and besides, a mounting time and a labor required for mounting of a pair of guide rails are reduced. CONSTITUTION: A slide device 21 comprises a guide rail 26 having slopes 24 and 25; and a slide body 27 is positioned astride the guide rail 26. The slide body 27 comprises a slide body 36 having a pair of leg parts 32 and 33 arranged facing the slopes 24 and 25 of a support part 31 and the guide rail 26; and slide members 39 and 40 mounted on the leg parts 32 and 33. Spring means 44 and 45 are arranged between the leg parts 32 and 33 and the slide members 39 and 40 mounted thereon.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding device such as a so-called slide shifter, which comprises a guide rail having slopes on both side surfaces facing each other and a slide body extending over the guide rail.

[0002]

2. Description of the Related Art A sliding device in which a sliding member is provided on guide rails having inclined surfaces on both side surfaces facing each other, and a sliding member is interposed between the sliding member and the inclined surface, A device to be linearly moved, for example, a robot or the like (hereinafter referred to as a slidable body) is attached and used to support the linearly movable body. And, in order to eliminate the rattling and to ensure the accurate movement of the slidable body, the sliding member is generally fitted to the slidable body and slidably with respect to the guide rail with almost no clearance. It is provided in contact.
When a slidable body having a large lateral width is supported so as to be linearly movable, a pair of guide rails 1 is usually used as shown in FIG.
, 2 are arranged in parallel, the sliding bodies 3, 3, ... Are laid over the guide rails 1 and 2, respectively, and the base 4 is mounted on the sliding bodies 3, 3 ,. A sliding body with a large width is placed on the top.

[0003]

By the way, as described above, the pair of guide rails 1 and 2 are arranged in parallel, and the guide rail 1
When the sliding bodies 3, 3, ... Are laid across the sliding rails 2 and 2, respectively, the sliding body is smoothly supported in the direction A by the base 4 in the entire guide region of the guide rails 1 and 2. In addition to the manufacturing precision of the guide rails 1 and 2 and the sliding bodies 3, 3, ...
The mounting accuracy of the guide rails 1 and 2 is involved, in other words, if the parallelism of the pair of guide rails 1 and 2 is poor, one end 5 of the guide rails 1 and 2 is
On the sides 6 and 6, for example, the distance 7 is wide, and on the other end 8 and 9 side, the distance 10 is narrower than the distance 7. The smooth movement of the sliding bodies 3, 3, ... Connected via the base 4 on either side of the parts 8 and 9 is disabled, and therefore the guide rails 1 and 2 and the sliding bodies 3, 3 ,.
Even if the manufacturing precision of each of them is obtained as desired, it becomes difficult to support the slidable body through the base 4 so as to be linearly movable in the entire guide region. In other words, in the above-described conventional sliding device, it takes a lot of time and labor to attach the pair of guide rails 1 and 2 in order to obtain the desired parallelism.

The present invention has been made in view of the above points, and an object of the present invention is to move a sliding body even when the parallelism of a pair of guide rails cannot be obtained as desired. (EN) It is possible to provide a sliding device which can be secured, and can support a slidable body so as to be linearly movable, and can reduce the mounting time and labor of a pair of guide rails.

[0005]

According to the present invention, the above-mentioned object is provided with a guide rail having slopes on both side surfaces facing each other, and a sliding member spanning the guide rail. The sliding body is formed integrally with the supporting portion and the supporting portion, and has a pair of legs each of which is arranged to face the slope of the guide rail, and a sliding body on each slope of the guide rail. A sliding member that is slidably contacted and attached to each leg portion, and a spring means is interposed between at least one leg portion and the sliding member attached to the leg portion. Achieved by a moving device.

In the present invention, the sliding body may further include another sliding member slidably contacting the upper surface of the guide rail and attached to the supporting portion. The spring means consist of disc springs or leaf springs in the preferred example, but may be other springs. The leaf spring may be in the form of a strip, and may have ridges at both ends in the longitudinal direction and valleys sandwiched between the ridges. The strip-shaped leaf spring may be interposed between the sliding member and the leg portion such that the front surface side is in contact with the sliding member and the rear surface side of the valley portion is in contact with the leg portion. The valley portion may be flat, or may be bent or curved in an acute angle or an obtuse angle. Further, the strip-shaped leaf spring may be formed by providing a plurality of troughs. In this case, at least the central trough is flat or is bent or curved in an acute angle or an obtuse angle. May be. It should be noted that spring means may be interposed between the both leg portions and the sliding members respectively attached thereto.

When a strip-shaped leaf spring is used as the spring means, for example, a cold-rolled steel strip for spring (JIS G 4802 S55C-CSP) having a sheet thickness of about 0.4 mm is used.
A material obtained by subjecting B) to a hardness Hv 380 to 420 by heat treatment, press-molding this into a strip shape, and then annealing (350 to 450 degrees for 1 hour) as heat treatment can be mentioned. As the spring reaction force of the strip-shaped leaf spring, the displacement is 1.00
It is preferably about 5 kgf to 20 kgf in mm to 1.50 mm.

[0008]

In the sliding device of the present invention, each leg of the sliding body is
A sliding member is attached with spring means interposed,
The sliding body is movable so as to be guided by the guide rail by sliding of the sliding member on the slope of the guide rail. Since at least one of the sliding members is attached to the leg portion of the sliding main body with the spring means interposed, the sliding means can be expanded and contracted by the expansion and contraction of the spring means without being significantly restricted by the mounting accuracy of the pair of guide rails. Sliding of the moving body against the guide rail is guaranteed.

The present invention will now be described in more detail based on the preferred embodiments shown in the drawings. The present invention is not limited to these specific examples.

[0010]

Concrete Example Referring to FIGS. 1 to 4, the sliding device 21 of this example
Is provided with a guide rail 26 having slopes 24 and 25 on both side surface portions 22 and 23 facing each other, and a slide body 27 extending over the guide rail 26.

The guide rail 26 has a smooth and flat upper surface 28.
A guide portion 29 having an inverted triangular cross section, which has the above-mentioned inclined surfaces 24 and 25 adjacent thereto, is integrally formed on the base portion 30. The guide portion 29 is not limited to such an inverted triangular cross section, and may have, for example, a trapezoidal cross section.

The sliding body 27 is formed of a thick plate-like support portion 31 and integrally extending downward from the support portion 31, and a pair of slide bodies 27 are provided so as to face the slopes 24 and 25 of the guide rail 26, respectively. Legs 32 and 33, support portion 31, and leg portion 3
2 and 33, a sliding body 36 having reinforcing rib portions 34 and 35 integrally formed with each other, and a guide rail 26.
Sliding surfaces 37 and 38 slidably contact the slopes 24 and 25 of the slide members 39 and 40 attached to the leg portions 32 and 33, respectively, and slide on the upper surface 28 of the guide rail 26. A sliding surface member 41 freely contacting is provided, and the sliding member 4 attached to the support portion 31 by a bolt 42.
3 and 3. The sliding member 39 includes a base 39a,
The sliding surface member 39b is fixed to the base 39a, and one surface of the sliding surface member 39b constitutes the sliding surface 37.
The sliding member 40 is also formed similarly to the sliding member 39.

At least one leg, in this example both legs 32 and 33 and the sliding member 39 attached thereto.
Spring means 44 and 45 are disposed between the spring means 44 and the spring means 40, respectively. The spring means 44 is composed of a strip-shaped leaf spring 46, and has a mountain portion 49 at both end portions 47 and 48 in the longitudinal direction and a mountain portion 49. Each of them has a flat valley portion 50 sandwiched between them, and slides so that the front surface 51 side of the mountain portion 49 contacts the sliding member 39 and the back surface 52 side of the valley portion 50 contacts the leg portion 32. It is interposed between the member 39 and the leg portion 32. The sliding member 39 and the leaf spring 46 are arranged and positioned in the recesses 54 formed in the inner surface 53 of the leg portion 32, respectively.
Both ends 47 and 48 of the leaf spring 46 are arranged and positioned in a recess 39c formed in the base 39a such that the leaf spring 46 can be elastically extended in the longitudinal direction.
The spring means 45 is also composed of a strip-shaped leaf spring 55 formed similarly to the leaf spring 46, and the leaf spring 55 is interposed between the sliding member 40 and the leg portion 33 similarly to the leaf spring 46. There is. The leaf springs 46 and 55 are arranged between the sliding member 39 and the leg portion 32 and between the sliding member 40 and the leg portion so that the leaf springs 46 and 55 can be slightly stretched when the sliding body 27 is fitted to the guide rail 26. Three
It is arranged between 3 and 3, respectively. In other words, the sliding members 39 and 40 are elastically biased by the corresponding leaf springs 46 and 55 toward the inclined surfaces 24 and 25 facing each other, and are movable with respect to the legs 32 and 33. Are attached to the leg portions 32 and 33, respectively.

Through holes 61, 62, and 63 are formed in the sliding member 39, the leaf spring 46, and the leg portion 32, respectively, and a spring pin 64 loosely inserted into the through holes 62 and 63 is closely packed in the through hole 61. The sliding member 39 and the leaf spring 46 are retained by the leg portion 32. A plug 65 is attached to the through hole 63. Similarly to the sliding member 40 and the leaf spring 55, the spring pin 74 loosely inserted in the through holes 72 and 73 is closely fitted in the through hole 71, and is held by the leg portion 33. A plug 75 is attached to the hole 73.

The sliding device 21 formed as described above is
To support a slidable body with a large width in a straight line,
A plurality of sliding bodies 27 are fitted on each of the guide rails 1 and 2 corresponding to the guide rail 26 as shown in FIG. 6, and the base 4 is mounted on the support portion 31 for use. Then, in the sliding device 21, the sliding members 39 and 40 are elastically urged by the corresponding leaf springs 46 and 55 toward the inclined surfaces 24 and 25 that face each other, and the leg portions 32 and 33 are formed.
Since it is attached to the leg portions 32 and 33 so as to be movable with respect to the guide rail 1 shown in FIG.
The gap 7 is widened on one end 5 and 6 side of the and 2, and the gap 10 is narrower than the gap 7 on the other end 8 and 9 side, that is, the parallelism is poor. Even if the rails 1 and 2 are fixed, the displacement of the sliding members 39 and 40 with respect to the legs 32 and 33 causes
This is compensated to ensure the sliding of the sliding body 27 in the A direction with respect to the guide rails 1 and 2.

By the way, as the leaf spring of the elastic means, instead of the leaf springs 46 and 55 described above, for example, FIG.
Alternatively, it may be a leaf spring 81 or 82 as shown in (b). The leaf spring 81 shown in FIG. 5A has a strip shape, and a ridge portion 85 that is smoothly curved at both end portions 83 and 84 in the longitudinal direction is smoothly curved and is sandwiched between the ridge portions 85. Each plate has a valley 86, and the front surface 87 side of the crest 85 is brought into contact with the sliding member 39 (40), and the back surface 88 side of the valley 86 is brought into contact with the legs 32 (33). The spring 81 may be interposed between the sliding member 39 (40) and the leg portion 32 (33), and the leaf spring 82 shown in FIG.
Has a smoothly curved peak portion 93 at both ends 91 and 92 in the longitudinal direction, and has a plurality of smoothly curved trough portions 94 sandwiched between the peak portions 93, and the peak portion 93. The leaf spring 82 is connected to the sliding member 39 (40) by contacting the front surface side 95 of the sliding member 39 (40) with the front surface side 95 of the central trough 94 and the back surface 96 side of the leg 32 (33). Part 3
2 (33) may be interposed.

[0017]

As described above, according to the present invention, even if the parallelism of the pair of guide rails is poor, the movement of the sliding body can be ensured, and the slidable body can be directly moved. It can be supported, and the time and labor for attaching the pair of guide rails can be reduced.

[Brief description of drawings]

FIG. 1A is a partially cutaway perspective view of a preferred specific example of the present invention, and FIG. 1B is a detailed perspective view of a leaf spring used in the specific example.

FIG. 2 is a sectional view taken along line II-II of the specific example shown in FIG.

FIG. 3 is a detailed view of a leaf spring used in the specific example shown in FIG.

FIG. 4 is a sectional view taken along line IV-IV shown in FIG.

5A and 5B are detailed views of another example of the leaf spring that can be used in the present invention.

FIG. 6 is an explanatory view of a conventional sliding device.

[Explanation of symbols]

 21 Sliding Device 24, 25 Slope 26 Guide Rail 27 Sliding Body 31 Supporting Part 32, 33 Leg Part 36 Sliding Body 39, 40 Sliding Member 44, 45 Spring Means

Claims (8)

[Claims] 1. A guide rail having slopes on both side surfaces facing each other, and a slide body extending over the guide rail, the slide body being integral with the support portion and the support portion. And a sliding body each having a pair of legs arranged so as to face the slope of the guide rail,
A sliding member attached to each leg so as to slidably contact each slope of the guide rail, and a spring means is provided between at least one leg and the sliding member attached to the leg. Sliding device with intervening. 2. The sliding device according to claim 1, wherein the sliding body further comprises another sliding member which is slidably contacted with the upper surface of the guide rail and attached to the supporting portion. 3. The sliding device according to claim 1, wherein the spring means is a disc spring or a leaf spring. 4. The leaf spring is in the form of a strip, and has ridges at both ends in the longitudinal direction and valleys sandwiched between the ridges, and the surface side of the ridges slides. The sliding device according to claim 3, wherein the moving member is interposed between the sliding member and the leg so that the back surface side of the trough contacts the leg. 5. The sliding device according to claim 4, wherein the valley portion is flat, or is bent or curved. 6. The leaf spring is in the form of a strip, and has ridges at both ends in the longitudinal direction, and a plurality of valleys sandwiched between the ridges, the surface of the ridges. The side is a sliding member,
Make sure that the back side of the central valley contacts the legs,
The sliding device according to claim 3, which is interposed between the sliding member and the leg portion. 7. At least the central valley is flat,
Alternatively, the sliding device according to claim 6, which is bent or curved. 8. The sliding device according to claim 1, wherein spring means are respectively interposed between the leg portions and the sliding members attached to the leg portions.