JP4784167B2 - Scaffolding device for elevator installation work - Google Patents

Description

  The present invention relates to a scaffold device used during elevator installation work.

  In a machine room-less elevator device that does not have a machine room above the hoistway, when installing elevator equipment in the hoistway, first, a scaffold is assembled from the bottom of the pit of the hoistway to lift materials and equipment. And the tools to be transported were installed at the top of the hoistway. However, in an elevator apparatus having a long lifting / lowering stroke, a large amount of scaffolding has to be assembled, which causes a problem that work efficiency is remarkably deteriorated.

  For this reason, a scaffold device for installation work that can be installed only at a height required for the installation work has also been proposed. As a prior art of the elevator installation scaffolding device having such a configuration, for example, two support beams provided between the front and rear end portions of the roof opening edge of the elevator hoistway, and between the support beams Equipped with a plurality of telescopic scaffolding plates installed, and by lifting and lowering the scaffolding plate according to the distance between the left and right hoistway walls when viewed from the landing side, with a stopper at an appropriate position, The thing which enabled it to arrange | position a scaffold board across a road wall is disclosed (refer patent document 1).

JP 2001-278564 A

  By using the elevator installation scaffolding device described in Patent Document 1, it is possible to assemble the scaffolding device only on the rooftop opening of the hoistway. However, since the distance between the two support beams provided between the front and rear ends of the hoistway roof opening edge is limited by the size of the entrance / exit entrance, the scaffolding device extends between the left and right hoistway walls. In order to assemble, it was necessary to adopt the above-mentioned special scaffolding plate configured to be stretchable. For this reason, the weight of the entire scaffold device is increased, which deteriorates the installation workability of the scaffold device and increases the cost. Also, with the above scaffolding plate, it is difficult to handle when the distance between the left and right hoistway walls is significantly larger than the frontage dimension. Further, it is difficult to cope with the lifting of the elevator hoisting machine and the arrangement of the main rope, etc. Therefore, there was a problem that the opening could not be formed arbitrarily and work efficiency in installing the elevator deteriorated.

  The present invention has been made to solve the above-described problems. The purpose of the present invention is to change the placement of the scaffolding plate in accordance with the elevator hoistway shape and installation work, and for installation and disassembly. It is an object of the present invention to provide an elevator installation scaffolding device that can be easily and inexpensively configured.

An elevator installation scaffolding device according to the present invention includes a first fixing means that is detachably provided on an elevator hoistway fixing body, and is detachably provided on the first fixing means. A plurality of first support beams arranged between the one side hoistway wall and the other side hoistway wall facing each other, and the first support beams provided on the landing side and the back side of the hoistway A plurality of second support beams arranged and movable in the longitudinal direction of the first support beam; a second fixing means for detachably fixing the second support beam to the first support beam; A scaffold plate fixing means that is freely provided and supports the scaffold plate and is movable in the longitudinal direction of the second support beam , and the second fixing means is disposed between the first support beam and the second support beam. The lower fixing metal that clamps the upper part of the first support beam with the mounting metal , Those having an upper fixed molding sandwiching the lower portion of the second supporting beams by the mounting bracket.

According to the elevator installation scaffold apparatus according to the present invention , the arrangement of the scaffolding plate can be changed in accordance with the elevator hoistway shape and installation work, and the installation and disassembly can be easily and inexpensively configured. it can.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
FIG. 1 is a perspective view of an elevator installation scaffold apparatus according to Embodiment 1 of the present invention. In FIG. 1, an elevator hoistway 1 includes a hall-side hoistway wall 1a in which an elevator hall entrance 2 is formed, and a rear side provided on the inner side of the hoistway 1 facing the hall-side hoistway wall 1a. The four sides are surrounded by the hoistway wall 1b and the one-side hoistway wall 1c and the other-side hoistway wall 1d provided so as to be opposed to the left and right with the hall entrance 2 therebetween. In addition, a plurality of sets of first attachments are formed on the one side hoistway wall 1c and the other side hoistway wall 1d made of the hoistway fixing body so as to be opposed to each other so as to be opposed to each other. Gold 3a and 3b are provided. Here, the first attachment metal 3 a provided at a predetermined height of the one side hoistway wall 1 c has a substantially L shape, and the one side hoistway so that the upper surface protrudes into the hoistway 1. The walls 1c are arranged one by one with a predetermined interval on the landing side and the back side. On the other hand, the first attachment metal 3b provided at a predetermined height of the other side hoistway wall 1d is predetermined on the landing side and the rear side of the other side hoistway wall 1d so as to face each first attachment metal 3a. Are arranged one by one with an interval of. And this 1st attachment metal 3b is exhibiting the substantially L shape similarly to the 1st attachment metal 3a, and is arrange | positioned so that the upper surface may protrude in the hoistway 1. As shown in FIG.

  Moreover, the 1st support beams 4a and 4b which consist of H steel etc. are provided horizontally ranging over each 1st attachment metal 3a and 3b which was provided so that it might mutually oppose, and comprised a pair. That is, the first support beams 4a and 4b have one side hoistway wall 1c and the other side hoistway wall so that the longitudinal direction thereof is the left-right direction (hereinafter referred to as “frontage direction”) when viewed from the landing of the hoistway 1. It is arranged over 1d and is provided substantially parallel to each other on the landing side and the back side of the hoistway 1.

  2 is a perspective view of the main part of the scaffold device for installation work shown in FIG. 1, and is an enlarged view of the attachment portion between the first attachment metal 3b and the end portion of the first support beam 4a. In FIG. 2, the first attachment metal 3b having a substantially L-shape is arranged so that the upper surface thereof is substantially horizontal, and the lower end of the first attachment metal 3b is attached to an anchor bolt 5 protruding from the other hoistway wall 1d. It is detachably fixed via 5a. Then, the end of the first support beam 4a is placed on the upper surface of the attachment metal 3b, and the end of the first support beam 4a is fastened to the first attachment metal 3b and the first attachment metal 3b by the attachment bolt 6. It is firmly held by the fixed first fixed metal 7. Here, the 1st fixing means in Embodiment 1 is comprised by the 1st attachment metal 3a and 3b, the attachment bolt 6, and the 1st fixation metal 7. FIG. The end portion of the first support beam 4a can be easily detached from the first attachment metal 3b by loosening the attachment bolt 6. Further, the other end portion of the first support beam 4a and both end portions of the first support beam 4b are also detachably fixed to the first attachment metal 3a or 3b by the same configuration as described above.

  Further, as shown in FIG. 1, a plurality of second support beams (FIG. 1) straddle between the first support beam 4a arranged on the landing side of the hoistway 1 and the first support beam 4b arranged on the back side. In FIG. 4, four second support beams 8a to 8d) are provided substantially parallel to each other. The second support beams 8a to 8d are made of H steel or the like like the first support beams 4a and 4b, and from the landing side of the hoistway 1 so that the longitudinal direction thereof is orthogonal to the first support beams 4a and 4b. It arrange | positions in the direction (henceforth "depth direction") which reaches a back side. Here, the second support beams 8a to 8d are disposed at arbitrary positions and at arbitrary intervals with respect to the longitudinal direction of the first support beams 4a and 4b, respectively, and the second fixing means 9 described later causes their landing side ends. The part is detachably fixed to the first support beam 4a, and the back end is detachably fixed to the first support beam 4b.

  Further, the second support beams 8a to 8d are provided with a vertical frame leg portion 11 whose height can be finely adjusted via a vertical frame fixing means 10 which will be described later. Each plate 13 is provided. The vertical frame legs 11 and the scaffolding plates 13 provided on the second support beams 8a to 8d, the vertical frame 14 provided upright on the vertical frame legs 11, and the handrail provided between the vertical frames 14. 15. The handrail frame 15a provided on the vertical frame 14 for fixing the handrail 15 to the vertical frame 14, the cross bracing 16 provided so as to intersect between the vertical frames 14, etc. are all inexpensive and easily available standards. Product or general-purpose product.

  3 is a main part assembly view of the installation work scaffolding device shown in FIG. 1, FIG. 4 is a front view of the main work assembly of the installation work scaffolding device shown in FIG. 3, and FIG. 5 is a side view thereof. Each attachment part of the 1st support beam 4a and the 2nd support beam 8a and the 2nd support beam 8a and the vertical frame leg part 11 is shown in detail. 3 to 5, when fixing the landing-side end of the second support beam 8 a to the first support beam 4 a, first, the upper surface of the first support beam 4 a provided across the frontage direction of the hoistway 1 is illustrated. The second attachment metal 17 is disposed at a predetermined position. Then, the second fixing metal 20 is fixed to the second mounting metal 17 from below by the mounting bolt 18 and the mounting nut 19. At this time, the mounting bolt 18 is tightened in a state where the upper part of the first support beam 4a is sandwiched between the second mounting metal 17 and the second fixing metal 20, and the second mounting metal 17 is attached to the first support beam 4a. Fix firmly.

  Next, the landing-side end portion of the second support beam 8a is disposed on the upper surface of the second mounting metal 17 fixed to the upper portion of the first support beam 4a. Then, the third fixing metal 23 is fixed to the second mounting metal 17 from above by the mounting bolt 21 and the mounting nut 22. At this time, the mounting bolt 21 is tightened in a state where the lower part of the second support beam 8 a is sandwiched between the second mounting metal 17 and the third fixing metal 23, and the second supporting beam 8 a is attached to the second mounting metal 17. Fix firmly. Here, the second fixing means 9 in the first embodiment is configured by the second mounting metal 17, the second fixing metal 20, the third fixing metal 23, the mounting bolts 18 and 21, and the mounting nuts 19 and 22. The back end of the second support beam 8a is also fixed to the first support beam 4b via the second fixing means 9 with the same configuration as described above.

  The second support beam 8a can be easily detached from the first support beams 4a and 4b by loosening the mounting bolts 18 or 21 of the second fixing means 9. Moreover, since the upper part of the 1st support beam 4a which consists of H steel is exhibiting the same shape over the longitudinal direction, the 2nd fixing means 9 can be fixed in the arbitrary positions of the 1st support beam 4a. That is, after loosening the mounting bolt 18, the second mounting metal 17 is slid in the longitudinal direction of the first support beams 4a and 4b, and the mounting bolt 18 is tightened again at an appropriate position, whereby the second support beam 8a is tightened. It becomes possible to easily transfer the first support beams 4a and 4b in the longitudinal direction. The second support beams 8b to 8d are also detachably fixed to the first support beam 4a or 4b via the second fixing means 9 at the respective ends thereof in the same configuration as described above. 4b can be moved in the longitudinal direction.

  In order to fix the vertical frame leg 11 to the second support beam 8a after the second support beam 8a is attached to the first support beams 4a and 4b, first, the vertical frame leg 11 is provided in the depth direction of the hoistway 1. The vertical frame legs 11 are arranged at predetermined positions on the upper surface of the second support beam 8a. And the vertical frame attachment metal 26 is fixed to the vertical frame leg 11 from below by the mounting bolt 24 and the mounting nut 25. At this time, the mounting bolt 24 is tightened from below in a state where the upper part of the second support beam 8a is sandwiched between the lower part of the vertical frame leg part 11 and the vertical frame attachment metal 26, and the vertical frame leg part 11 is attached to the second frame. It is firmly fixed to the support beam 8a. Here, the vertical frame fixing means 10 in the first embodiment includes a vertical frame attachment metal 26, an attachment bolt 24, and an attachment nut 25.

  The vertical frame leg portion 11 can be easily detached from the second support beam 8a by loosening the mounting bolt 24. Moreover, since the upper part of the 2nd support beam 8a which consists of H steel is exhibiting the same shape over the longitudinal direction, the vertical frame leg part 11 is attached to arbitrary arbitrary of the 2nd support beam 8a via the vertical frame fixing means 10. Can be fixed in position. That is, after loosening the mounting bolt 24, the vertical frame mounting metal 26 and the vertical frame leg 11 are slid in the longitudinal direction of the second support beam 8a, and the mounting bolt 24 is tightened again at an appropriate position. The leg portion 11 can be easily transferred in the longitudinal direction of the second support beam 8a. A plurality of vertical frame legs 11 are detachably fixed to the second support beams 8a to 8d via vertical frame fixing means 10 configured to be movable in the longitudinal direction of the second support beams 8a to 8d. Has been.

  6 is an essential part assembly diagram of the installation work scaffold device shown in FIG. 1, and FIG. 7 is a perspective view of the main assembly of the installation work scaffold device shown in FIG. The attachment part of the necessary scaffold board fixing means 12 and the 2nd support beam 8a is shown in detail. 6 and 7, the second support beam 8a arranged in the depth direction of the hoistway 1 is provided with a scaffolding plate attachment metal 27 having a substantially L shape at both ends of the upper surface thereof. The scaffolding plate mounting metal 27 is disposed at a predetermined position on the upper surface of the second support beam 8a so that the upper parts thereof are opposed to each other, and the lower part thereof is placed on the upper surface of the second support beam 8a. 29 and the fourth fixed metal 30 are fixed to the upper part of the second support beam 8a. At this time, the mounting bolt 28 is tightened from below in a state where the upper part of the second support beam 8a is sandwiched between the lower part of the scaffolding board mounting metal 27 and the fourth fixed metal 30, and the scaffolding board mounting metal 27 is moved to the second. It is firmly fixed to the support beam 8a.

  Each scaffold plate mounting metal 27 is formed with a through-hole 27a at its upper part facing each other so that the central axis is substantially straight. The support shaft 31 having a pipe shape is inserted into the through hole 27a and supported at both ends thereof by the scaffolding plate mounting metal 27, and the support shaft 31 is prevented from being detached from the through hole 27a at both ends. Retaining stoppers 32 are provided at positions on the outer side of the scaffolding plate mounting metal 27. Note that the support shaft 31 is also fixed to the upper portions of the second support beams 8b and 8d through the scaffolding plate mounting metal 27 and the like with the same configuration as described above.

  The scaffold plate 13 is provided across the support shafts 31 provided on the second support beams 8a and 8b and the support shafts 31 provided on the second support beams 8b and 8d. Here, hooks 13 a provided at both ends of the scaffold plate 13 are hooked on the support shaft 31, and are spread over the frontage direction and the depth direction of the hoistway 1. When the load acting on the support shaft 31 is large, as shown in FIGS. 6 and 7, the support metal 33 provided with the through holes 33 a is arranged between the scaffolding plate mounting metal 27, and The intermediate portion may be supported by the support metal 33. Here, the scaffold plate fixing means 12 in the first embodiment includes a scaffold plate attachment metal 27, a support metal 33, a support shaft 31, a retainer 32, a fourth fixation metal 30, an attachment bolt 28, and an attachment nut 29. Yes.

  The scaffold plate fixing means 12 can be easily detached from the second support beams 8a to 8d by releasing the retaining member 32 and loosening the mounting bolt 28. Further, since the upper portions of the second support beams 8a to 8d have the same shape in the longitudinal direction, the scaffolding plate mounting metal 27 can be fixed at an arbitrary position of the second support beams 8a to 8d. That is, after loosening the mounting bolt 28, the scaffolding plate fixing means 12 is fixed by sliding the scaffolding plate mounting metal 27 in the longitudinal direction of the second support beams 8a to 8d and tightening the mounting bolt 28 again at an appropriate position. It is possible to easily transfer the second support beams 8a to 8d in the longitudinal direction.

  With this configuration, the scaffold plate 13 is attached across the second support beams 8a to 8d provided with the scaffold plate fixing means 12. The vertical frame legs 11 provided on the second support beams 8a to 8d are arranged so as to surround the periphery of the scaffold plate 13, and the vertical frame legs 11 are erected on the vertical frame legs 11. By appropriately installing the handrail 15, a safety fence surrounding the scaffold board 13 is formed. In FIG. 1, a vertical frame 14 a, a handrail 15 b, and a scaffold plate 13 b are further provided above the vertical frame 14 erected on the vertical frame leg 11, and the working scaffold is configured in two stages. Yes. Further, between the landing and the scaffold plate 13 in the hoistway 1, a landing plate 13 c and a handrail 15 c form a boarding passage through which a maintenance worker moves from the landing to the scaffold plate 13.

  According to the elevator installation work scaffolding in the first embodiment of the present invention, it is possible to install the scaffolding device only at a required height during the elevator installation work. It is not necessary to assemble a scaffold from Further, the second support beams 8a to 8d are placed at arbitrary positions in the longitudinal direction of the first support beams 4a and 4b (the frontage direction of the hoistway 1), and the vertical frame legs 11 and the scaffolding plate fixing means 12 are second. Since it can be arranged at any position in the longitudinal direction of the support beams 8a to 8d (the depth direction of the hoistway 1) and its position adjustment is easy, according to the size of the hoistway 1 and the contents of installation work, The layout of the scaffold device can be freely changed.

  In addition, since the opening can be formed at an arbitrary position by arranging and removing the scaffold plate 13, the installation work space and lifting space for the equipment can be easily secured, and the same even after the counterweight and guide rail are installed. It is possible to arrange so as to avoid these devices using the above-mentioned members. Further, all members such as the scaffold plate fixing means 12, the vertical frame legs 11, the second support beams 8a to 8d, and the first support beams 4a and 4b are configured to be detachable by fastening and loosening the mounting bolts. Therefore, welding or the like is unnecessary, the assembly and disassembly of the scaffold device are easy, and the time required for the installation work can be shortened.

  The first support beams 4a and 4b, and the vertical frame 14, the scaffolding plate 13, the handrail 15 and the like assembled on the second support beams 8a to 8d are all configured with standard products and general-purpose products that are inexpensive and easily available. Therefore, it is possible to reduce the cost of the entire scaffold device without requiring specially shaped parts or the like. In addition, since the vertical frame 14 and the like can be configured with standard products or general-purpose products, the scaffold device is configured in multiple stages as shown in FIG. 1, and the installation work on the top and intermediate floors of the hoistway 1 can be easily handled. It becomes possible.

  Here, FIG. 8 is a diagram showing maintenance work using the elevator installation work scaffolding apparatus according to Embodiment 1 of the present invention, in which the installation work scaffolding apparatus is installed at the top floor height. Is shown. FIG. 9 is a diagram showing another maintenance work, and shows a state in which the installation work scaffold device is installed on an intermediate floor. 8 and 9, when the installation work is performed at the top or intermediate floor of the hoistway 1, the work can be performed at a desired height by configuring the scaffold device in two or more stages. FIG. 8 shows a case where a lifting space is secured on the back side of the hoistway 1 and the lifted object is moved up and down via the lifting beam 1e at the top of the hoistway 1. By changing the arrangement of the support beams 8 a to 8 d and the scaffold plate 13, it is also possible to secure a lifting space on the left and right or the center of the hoistway 1.

Embodiment 2. FIG.
FIG. 10 is a perspective view of a main part of a scaffold device for elevator installation work according to Embodiment 2 of the present invention, and is a view corresponding to FIG. In FIG. 10, 34 is a steel beam of the building where the elevator apparatus is installed, and is composed of a hoistway fixing body such as H steel. Then, the upper part of the steel beam 34 is sandwiched between the mounting plate 35 placed on the upper surface of the steel beam 34 and the fifth fixing metal 37 fastened and fixed to the mounting plate 35 by the mounting bolt 36. It is fixed to the steel beam 34. Further, the end of the first support beam 4 a is placed on the upper surface of the mounting plate 35, and the first support beam 4 a is constituted by the mounting plate 35 and a sixth fixed metal 39 fastened and fixed to the mounting plate 35 by mounting bolts 38. The first support beam 4 a is fixed to the mounting plate 35.

  With this configuration, the first support beams 4a and 4b can be firmly fixed to the steel beam 34 having a predetermined height. Therefore, when the hoistway 1 is a steel beam structure in which the hoistway walls 1a to 1d are not provided with a predetermined strength, or when the anchor bolt 5 is not installed at a desired height, it becomes an effective means. . The end portion of the first support beam 4a can be easily detached from the mounting plate 35 by loosening the mounting bolt 38. The other configurations and effects are the same as those of the first embodiment.

It is a perspective view of the elevator installation scaffold apparatus in Embodiment 1 of this invention. It is a principal part perspective view of the scaffold apparatus for installation shown in FIG. It is a principal part assembly drawing of the scaffold apparatus for installation shown in FIG. It is a front view at the time of completion of the main part assembly of the scaffold device for installation work shown in FIG. It is a side view at the time of the completion of the principal part assembly of the scaffold apparatus for installation shown in FIG. It is a principal part assembly drawing of the scaffold apparatus for installation shown in FIG. It is a perspective view at the time of the principal part assembly completion of the scaffold apparatus for installation shown in FIG. It is a figure which shows the maintenance operation | work using the scaffold apparatus for elevator installation work in Embodiment 1 of this invention. It is a figure which shows the other maintenance work using the scaffold apparatus for elevator installation work in Embodiment 1 of this invention. It is a principal part perspective view of the scaffold apparatus for elevator installation work in Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 1a Board side hoistway wall 1b Back side hoistway wall 1c One side hoistway wall 1d Other side hoistway wall 1e Lifting beam 2 Entrance doorway 3a, 3b First attachment metal 4a, 4b First support beam 5 Anchor Bolt 5a, 19, 22, 25, 29 Mounting nut 6, 18, 21, 24, 28, 36, 38 Mounting bolt 7 First fixing metal 8a, 8b, 8c, 8d Second support beam 9 Second fixing means 10 Vertical Frame fixing means 11 Vertical frame leg 12 Scaffold plate fixing means 13, 13b, 13c Scaffold plate 13a Hook 14, 14a Vertical frame 15, 15b, 15c Handrail 15a Handrail frame 16 Cross bracing 17 Second mounting bracket 20 Second fixing bracket 23 Third fixing metal 26 Vertical frame mounting metal 27 Scaffolding plate mounting metal 27a, 33a Through hole 30 Fourth fixing metal 31 Support shaft 32 Retaining stopper 33 Supporting metal 34 Steel beam 35 Mounting plate 37 Fifth fixing metal 9 sixth stationary mold

Claims (6)

First fixing means detachably provided on the elevator hoistway fixing body;
A plurality of first support beams provided detachably on the first fixing means and disposed between the one side hoistway wall and the other side hoistway wall facing each other with the hall entrance / exit of the elevator in between,
A plurality of second support beams arranged across the first support beams provided on the landing side and the back side of the hoistway, and movable in the longitudinal direction of the first support beams;
Second fixing means for detachably fixing the second support beam to the first support beam;
The second support beam is detachably provided to support the scaffold plate, and includes a scaffold plate fixing means that can be moved in the longitudinal direction of the second support beam ,
The second fixing means is
A fitting disposed between the first support beam and the second support beam;
A lower fixing metal for sandwiching an upper part of the first support beam by the mounting metal;
An upper fixing metal for sandwiching a lower part of the second support beam by the mounting metal;
Installation work platform device for an elevator, characterized in that it comprises a. The lower fixed metal and the upper fixed metal are fixed to the mounting metal using bolts,
The bolt for fixing the lower fixing metal to the mounting metal is disposed on one side of the second support beam;
The elevator installation scaffolding system according to claim 1 , wherein the bolt for fixing the upper fixing metal to the attachment metal is disposed on the other side of the second support beam . It said first securing means,
A pair of at least two first mounting members provided to be opposed to anchor bolts of the one side hoistway wall and the other side hoistway wall;
According to claim 1, characterized in that a first stationary mold for removably securing said first support beams disposed across the first mounting bracket that forms a pair with the first mounting bracket Elevator installation work scaffolding equipment. It said first securing means,
A pair of at least two mounting plates provided to oppose each other to the steel beam of the building;
For installation work of an elevator according to claim 1, characterized in that a fixed molding for detachably securing said first support beams disposed across the mounting plate form a pair of the mounting plate Scaffolding device. The scaffold plate fixing means includes:
Detachably attached to the second support beam, and scaffolding plates Mounting bracket capable relocation to the longitudinal direction of the second support beam,
The elevator installation scaffolding device according to any one of claims 1 to 4 , further comprising a support shaft that is supported by the scaffolding plate mounting metal and on which the scaffolding plate is hooked. 6. A vertical frame fixing means that is detachably provided on the second support beam to support the vertical frame and is movable in the longitudinal direction of the second support beam. An elevator installation scaffold device according to any one of the above.

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