JPH11117519A - Scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conduct high-place works on a scaffold member as lifting and lowering members and moving them while inching elevating vertical frame members, and to perform works at a place higher than the height of the vertical frame member by repeating inching and elevating motions. SOLUTION: The scaffold device has a vertical frame member 1, a first mounting-demounting mechanism 32 capable of mounting and demounting the vertical frame member onto and from a wall body, lifting-lowering members 3 capable of being lifted and lowered on the vertical frame member, a lifting- lowering mechanism 5 lifting and lowering each lifting-lowering member on the vertical frame member, and moving members 9 installed horizontally movably in the opposite direction of the wall body. The scaffold device has a moving mechanism bringing near, separating and operating each moving member in the opposite direction of the wall body, a second mounting-demounting mechanism 33 capable of mounting and demounting each moving member 9 onto and from the wall body, and a scaffold member 23 projected from the moving members 9 in the horizontal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffolding device used as a temporary scaffold for work in high places such as inside and outside walls of high-rise buildings, floor work and glass window cleaning.

[0002]

2. Description of the Related Art In recent years, a scaffolding device of this type has been constructed in which a building and a fabric are formed as a frame unit along a wall surface of a building by using a steel pipe and a fastener, and are assembled by being braced around the building unit. It has been known.

[0003]

However, in the case of the conventional scaffolding device, a strong scaffold must be framed for safety before construction of the building, and the scaffolding device must be disassembled upon completion of the construction. In addition, the labor has become enormous, and it can be said that such work is wasteful, so that there is an inconvenience that the working cost has to be increased.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve these problems, and among the present invention, the invention described in claim 1 is directed vertically along a wall of a building. A vertical frame member to be disposed, a first attaching / detaching mechanism capable of attaching / detaching the vertical frame member to / from a wall, an at least one pair of elevating members capable of ascending / descending on the vertical frame member, and vertically moving each elevating member. An elevating mechanism for individually moving up and down on the frame member, a moving member provided on each of the elevating members so as to be horizontally movable in a direction facing the wall, and a movement for moving each moving member toward and away from the direction facing the wall A scaffolding device comprising a mechanism, a second attachment / detachment mechanism capable of attaching / detaching each of the moving members to / from a wall, and a scaffold member protruding from the moving member in a horizontal direction.

According to a second aspect of the present invention, the lifting mechanism includes a rack rod vertically arranged on the vertical frame member;
4. The invention according to claim 3, further comprising an elevating motor arranged on the elevating member, and a pinion attached to a main shaft of the elevating motor and capable of meshing with the rack rod. Is characterized in that the scaffold member is composed of a fixed scaffold member and a telescopic scaffold member that can expand and contract.

[0006]

1 to 8 show an embodiment of the present invention. FIGS. 1 to 7 show a first embodiment and FIG. 8 shows a second embodiment.

In the first embodiment shown in FIGS. 1 to 7, reference numeral 1 denotes a vertical frame member, which is set to an arbitrary length in accordance with the height of the wall surface M of the building K. In this case, the height is 1,500 mm × width 5
A plurality of square frame-shaped frames each having a frame structure of 00 mm x 500 mm in depth, in this case, nine frame members 2 are vertically stacked and connected to each other to have a total length of 13.5 m.

Reference numeral 3 denotes an elevating member. In this case, the elevating member 3 is formed in a rectangular frame shape having a frame structure so as to surround the vertical frame member 1, and the elevating member 3 is vertically framed by a total of eight upper and lower guide rolls 4. It is provided so as to be able to move up and down along the member 1.

Reference numeral 5 denotes an elevating mechanism, which is mounted on the elevating member 3 with an elevating motor 6 having a speed reducer and a brake mechanism which can be rotated and stopped at an arbitrary position, and a pinion 7 is attached to a main shaft of the elevating motor 6. The rack rod 8 is attached to each of the frame members 2 in the up-down direction, and is moved up and down on the vertical frame member 1 by the engagement of the pinion 7 and the rack rod 8 by driving the motor 6 for raising and lowering. When the lifting / lowering motor 6 is stopped, a brake acts on the main shaft of the lifting / lowering motor 6, so that the main shaft cannot rotate and can be stopped at that position.

Reference numeral 9 denotes a moving member, which is formed in a rectangular frame shape having a frame structure, and in which the upper and lower elevating members 3 are moved toward and away from the wall surface M of the building K by the guide rolls 10 and 11 and the guide roll 12. It is provided so as to be able to reciprocate horizontally in the front-rear direction.

Reference numeral 13 denotes a moving mechanism. In this case, a rotating shaft 14 is mounted on the elevating member 3 by a bracket 15 and a moving motor 16 is mounted on the elevating member 3.
6 and the rotating shaft 14, the sprocket 17 is mounted on the rotating shaft 14, and the sprockets 18 and 19 are freely rotatably mounted below the rotating shaft 14 of the elevating member 3. The chain 20 is hung between 19, one end of the chain 20 is fixed to the front end of the moving member 9 by the mounting plate 21, and the other end of the chain 20 is mounted to the rear end of the moving member 9. The moving member 9 is configured to be reciprocally reciprocable in the front-rear direction via the chain 20 by being fixed by the plate 22 and by rotating the rotating shaft 14 forward and reverse by the moving motor 16.

Reference numeral 23 denotes a scaffold member, which is formed on both left and right sides of the moving member 9 so as to extend horizontally and protrude therefrom. The scaffold member 23 is provided with a fixed scaffold member 24 and a telescoping mechanism 25 so as to extend and contract. It consists of a scaffold member 26, in which case the fixed scaffold member 24 is formed in the shape of a square frame with a framed structure,
The telescopic scaffold member 26 is formed in a rectangular frame shape having a frame structure that can be inserted into the inside of the fixed scaffold member 24, whereby the telescopic scaffold member 26 can be telescopically moved with respect to the fixed scaffold member 24 by an operator's pulling or pushing operation. And a floor plate 27 such as a punched metal or a lath plate is attached to the upper surfaces of the fixed scaffold member 24 and the telescopic scaffold member 26, and the telescopic scaffold member 26 is fixed at a predetermined draw-out position by a stop mechanism (not shown). doing.

Reference numeral 28 denotes a handrail frame member. In this case, a vertical tube 28a and a horizontal tube 28b are formed as a frame, and are vertically mounted on a fixed scaffold member 24 and a telescopic scaffold member 26 so as to be detachable.

Reference numeral 29 denotes a lock mechanism, which is provided between the vertical frame member 1 and the elevating member 3 and has a structure for fixing the elevating member 3 at an arbitrary stop position. The case body 30 is attached to the elevating member 3, and the triangular block-shaped cam members 31.3 are attached to the case body 30.
A cam surface 3 which is freely movably pivotally connected to the case body 30 and is slidable on the slopes 31a of the cam members 31.
0a and 30a are formed, and one cam member 31 is formed with a meshing portion 31b capable of meshing with the rack rod 8, and the cam members 30 and 30 are inclined by the operation mechanism (not shown) to the inclined surfaces 31a and 31a and the cam surfaces 30a and 30a. , The rack member 8 is moved closer to the rack member 8 so that the engaging portion 31b formed on one cam member 31 is meshed with the rack rod 8 and the other cam member 31 is pressed against the rear surface of the rack rod 8, Thereby, the elevating member 3 is fixed to the vertical frame member 1, the cam member 31 is moved away from the rack rod 8, and the engaging portion 31 b formed on one cam member 31 is separated from the rack rod 8 and The other cam member 31 is also separated from the rear surface of the rack rod 8 so as to allow the elevating member 3 to move up and down with respect to the vertical frame member 1.

Reference numeral 32 denotes a first attaching / detaching mechanism, and 33 denotes a second attaching / detaching mechanism. In this case, the first attaching / detaching mechanism 32 attaches fixed frame members 34 and 35 to the upper and lower ends of the vertical frame member 1. ,
At a predetermined height of the wall surface M, for example, a fastening portion 36 as a nut portion
A plurality of fixing frames 34 and 35 are provided so as to be attached to or detached from the fastening portion 36 by bolts as fastening materials 37.
A fixing member 38 is provided on the side of the moving members 9 facing the wall.
39 are formed, a plurality of fastening portions 40 as, for example, nuts are vertically arranged at a predetermined height of the wall surface M, and the fixing members 38 and 39 are fixed to the fastening portions 4 by bolts as the fastening material 41.
0 so as to be attachable or detachable.
In addition, these attachment / detachment structures may not be formed with the fastening portions 36 and 40 in advance, but may be sequentially attached and fixed or removed using an anchor, for example, according to the progress of the construction. They can be attached and detached by means, and the structures of these attaching and detaching mechanisms 32 and 33 are appropriately designed.

Since the first embodiment of the present invention has the above structure, it is transported to a construction site in a state where it is disassembled into the vertical frame member 1, the elevating member 3 and the scaffold member 23. The member 1 is disassembled into a plurality of frame members 2, and the scaffold member 23 is disassembled into a fixed scaffold member 24, a telescopic scaffold member and a handrail frame member 28, and is carried in a construction site. The scaffold member 23 is assembled, the vertical frame member 1 is set upright, and the first attaching / detaching mechanism 3 is attached to the wall M of the building K.
2, the fixing frames 34 and 35 of the vertical frame member 1 are fixed to the wall surface K. In this state, the elevating member 3 is moved up and down along the vertical frame member 1 by driving the elevating motor 6 to build the scaffold member 23 into the building. The moving member 9 is disposed in the vicinity of the building K by the moving mechanism 13, and the moving member 9 is moved up and down and moved according to the working height. At the same time, the work at a high place is performed on the scaffold member 23. Therefore, the height of the scaffold member 23 can be set at an arbitrary height according to the work site of the building K by raising and lowering the elevating member 3. By moving the moving member 9 back and forth, the scaffold member 23 can be installed at an arbitrary front and rear position. For this reason, for example, in the case of the outer wall construction of the building K, there is an eaves portion or a projecting portion of the roof, etc. If moving member 9 is in the way The moving member 9 can be moved closer to the outer wall after being raised and lowered in a state where the moving member 9 is separated from the outer wall to a position that is farther away from the outer wall, and the gap between the scaffold member 23 and the outer wall can be reduced as much as possible, thereby enhancing safety. When the operation shifts to a position higher than the range of elevation of the elevating member 3 at the current position, the operation efficiency can be improved and the operation efficiency can be improved. The four drawings are referred to as a, b, c, and d from the left in the figure. First, as shown in FIG. A, the fixing member 39 disposed on the lower moving member 9 is removed from the wall surface by the second attaching / detaching mechanism 33. At the same time, the lower moving member 9 is moved away from the wall surface M by the moving mechanism 13, and in this state, the lower moving member 9 is moved up to near the upper moving member 9 as shown in FIG. Side moving member 9 by moving mechanism 13 After being moved close to the surface K, the fixing member 39 is attached and fixed to the wall surface K by the second attaching / detaching mechanism 33, and the fixing members 38 and 39 arranged on the upper and lower moving members 9 are attached and fixed to the wall surface K. ,
When the fixed frame members 34 and 35 disposed above and below the vertical frame member 1 are removed from the wall surface K by the first attaching / detaching mechanism 32, and the moving mechanism 9 is operated in this state, each moving member 9 is fixed to the wall surface K. Accordingly, when the vertical frame member 1 moves away from the wall surface K and the lifting mechanism 5 is operated, the lifting member 3 is fixed to the wall surface K via the moving member 9, as shown in FIG. The vertical frame member 1 is lifted, and in this raised position, the moving mechanism 9 is operated to move the vertical frame member 1 close to the wall surface and the fixed frame members 34 and 35 are moved to the second attaching / detaching mechanism 33 as shown in FIG. The vertical frame member 1 is stepped upward by this, and at this raised position, the fixing member 39 of the moving member 9 is removed from the wall surface K by the second attaching / detaching mechanism 33, and according to the working height. To raise and lower the moving member 3 and the moving member 9 While performing the high-place work on the scaffold member 23, the work at a position higher than the height of the vertical frame member 1 can be performed by repeating such a step-by-step rise, and the work height is accordingly reduced. Flexibility can be increased, the length of the vertical frame member 1 can be standardized without depending on the working height and the height of the building, and there is no need to manufacture the vertical frame member 1 having a very long length. Therefore, transportation and handling can be easily performed.

In this case, the elevating mechanism 5 includes a rack rod 8 arranged vertically in the vertical frame member 1, an elevating motor 6 arranged on the elevating member 3, and a main shaft of the elevating motor. The lifting member 3 is configured so as to move up and down by cooperation of the pinion 7 driven by the lifting motor 6 and the rack rod 8. The lifting member 3 can be raised and lowered smoothly, and the structure can be simplified, and the assembling and disassembling operations are facilitated, and the operation cost can be reduced.

In this case, since the scaffolding member 23 is composed of the fixed scaffolding member 24 and the telescopic scaffolding member 26, the length can be appropriately set according to the working range of the building K, and the working efficiency can be improved. In this case, since the vertical frame member 1 is composed of a plurality of frame members 2 which can be stacked and disassembled with each other, the plurality of frame members 2 are separated into a single frame member 2. Can be more easily transported and transported, and the building K can be selected by selecting the number of frame members 2.
The length of the vertical frame member 1 can be appropriately adjusted according to the working height, and the flexibility of use can be increased.

In this case, since a lock mechanism 29 for fixing the position of the elevating member 3 to the vertical frame member 1 is provided,
After elevating the elevating member 3 to an appropriate height, the elevating member 3 can be reliably stopped and held at the stop position by the lock mechanism 29, thereby preventing accidental descent of the elevating member 3 and improving work safety. can do.

The second embodiment shown in FIG. 8 shows another structure. In this case, two sets of the scaffolding devices T of the first embodiment are arranged in parallel on the wall surface M, and It is configured by connecting the opposing ends.

In the second embodiment, the same operation and effects as those of the first embodiment can be obtained, and the scaffold member 23 can be provided.
The working range above can be expanded.

The present invention is not limited to the above-described embodiment. For example, the vertical frame member 1, the elevating member 3, the elevating mechanism 5, the moving member 9, the moving mechanism 13, and the first and second attaching / detaching mechanisms. The structure and the like of 32 and 33 are appropriately designed and changed.

[0023]

As described above, according to the first aspect of the present invention, the vertical frame member is erected vertically, and the vertical frame member is fixed to the wall surface of the building by the first attachment / detachment mechanism. The elevating member moves up and down along the vertical frame member, and the scaffold member is raised and lowered at an appropriate height according to the work site of the building, and the moving member is arranged close to the building by the moving mechanism, and according to the working height. The height work of the scaffold member will be performed on the scaffold member while raising and lowering and moving the elevating member and the moving member. Can be installed, and furthermore, the scaffold member can be installed at an arbitrary front and rear position by moving the moving member back and forth,
For this reason, for example, in the case of the outer wall construction of a building, even if there is an eaves portion or a protruding portion of the roof, the moving member is moved up and down in a state where it is separated from the outer wall so as not to interfere with the moving member. Can be moved closer to the outer wall, the gap between the scaffold member and the outer wall can be made as small as possible, safety can be improved, and work can be facilitated and work efficiency can be improved. And, the vertical frame member can be stepped up, and by repeating this step-up operation, the work can be performed at a position higher than the height of the vertical frame member, and the flexibility of the working height can be increased accordingly. The length and height of the vertical frame members can be standardized without depending on the working height and the height of the building, and there is no need to manufacture the vertical frame members of such a long length. It is possible to perform the treatment easily.

In this case, in the invention according to the second aspect, the lifting mechanism includes a rack rod disposed in a vertical direction of the vertical frame member, a lifting motor disposed on the lifting member, A pinion attached to the main shaft of the elevating motor and capable of meshing with the rack rod is formed, and the elevating member is configured to move up and down by cooperation of the pinion driven by the elevating motor and the rack rod. The lifting member can be raised and lowered smoothly, the structure can be simplified, and the assembling and disassembling operations are facilitated, so that the operation cost can be reduced.
In the described invention, since the scaffold member is composed of the fixed scaffold member and the extendable telescopic scaffold member, the length can be appropriately set according to the working range of the building, and the work efficiency is improved. Can be.

As described above, the intended purpose can be sufficiently achieved.

[Brief description of the drawings]

FIG. 1 is an overall front view of a first embodiment of the present invention.

FIG. 2 is an overall side view of the first embodiment of the present invention.

FIG. 3 is an overall plan view of the first embodiment of the present invention.

FIG. 4 is a partially enlarged side view of the first embodiment of the present invention.

FIG. 5 is a partially enlarged plan view of the first embodiment of the present invention.

FIG. 6 is a partially enlarged rear view of the first embodiment of the present invention.

FIG. 7 is a side view illustrating a step-up state according to the first embodiment of the present invention.

FIG. 8 is an overall front view of a second embodiment of the present invention.

[Explanation of symbols]

 K Building M Wall 1 Vertical frame member 3 Lifting member 5 Lifting mechanism 6 Lifting motor 7 Pinion 8 Rack rod 9 Moving member 13 Moving mechanism 23 Scaffolding member 24 Fixed scaffolding member 26 Telescopic scaffolding member

Claims (3)

[Claims] 1. A vertical frame member arranged vertically along a wall of a building, a first attaching / detaching mechanism capable of attaching / detaching the vertical frame member to / from the wall, and a vertically movable member on the vertical frame member. At least a pair of upper and lower elevating members, an elevating mechanism for individually elevating each of the elevating members on the vertical frame member, and a moving member provided on each of the elevating members so as to be horizontally movable in a direction facing the wall, A moving mechanism for moving each moving member toward and away from the wall in a direction opposite to the wall, a second attaching / detaching mechanism capable of attaching / detaching each moving member to / from the wall, and a scaffolding member projecting horizontally from the moving member. A scaffolding device characterized by comprising: 2. The lifting mechanism according to claim 1, wherein the lifting mechanism includes a rack rod vertically arranged on the vertical frame member, a lifting motor disposed on the lifting member, and a rack rod mounted on a main shaft of the lifting motor. The scaffolding device according to claim 1, wherein the scaffolding device comprises a pinion that can mesh with the scaffold. 3. The scaffolding member according to claim 1, wherein the scaffolding member comprises a fixed scaffolding member and a telescopic scaffolding member.
Or the scaffolding device of 2.