JPH09317162A - Scaffolding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve efficiency in execution of works by a method wherein a main frame member is erected on a transportable installation base frame while a lifting member capable of being lifted up and down and a movable member are provided at the main frame member, and a locking mechanism for fixing the lifting member to the main frame member is provided. SOLUTION: An installation base frame 1 is fixed with a holding mechanism to a decking B made of a steel plate placed at a specified position, and a main frame member 4 and a scaffolding member 24 composed of fixed scaffolding frames 26 and expandable scaffolding frames 28 are assembled with bolts together with the installation base frame 1. A lifting member 6 is moved up and down along the main frame member 4 by operation of a lifting motor and the scaffolding member 24 is moved up or down to be set at an appropriate position in accordance with a place of work at a building while a movable member 11 is moved forward or rearward by turning of a revolving shaft. A locking mechanism is provided at the lifting member 6 so that the lifting member can be fixed to the main frame member 4, and the lifting member 6 is stopped and held at a stopping position after being lifted up or down to an appropriate position. Therefore, safety can be improved for execution of works by preventing accidental falling of the lifting member.

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 scaffolding for high-rise work such as inner and outer wall work for high-rise buildings 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]

The present invention is intended to solve these problems. Among the present inventions, the invention according to claim 1 is a transportable installation frame and the installation. A main frame member that is erected on the underframe, an elevating member that is vertically movable on the main frame member, a moving member that is horizontally reciprocally movable on the elevating member in the front-rear direction, and the moving member. A scaffolding device comprising a scaffolding member provided in the left-right direction, and a lock mechanism for fixing the elevating member to the main frame member in position.

Further, the invention according to claim 2 is characterized in that the elevating member is constructed so as to ascend and descend by cooperation of a pinion driven by an elevating motor and a rack. According to the third aspect of the present invention, in the lock mechanism, a case body is arranged on the elevating member, gears capable of meshing with each other are arranged on the case body, and the gear is provided with a cam member in an eccentric state. The cam member is rotatably pivotally mounted, and the cam member has an inclined surface, the case member has an inclined surface formed with a slidable cam surface, and the cam member is meshable with a rack provided on the main frame member. It is characterized in that a meshing portion is formed.

[0006]

1 to 12 show an embodiment of the present invention, in which 1 is an installation underframe, and a width 1 laid on the ground M on the installation underframe 1, for example, an iron plate , 500 mm ×
A locking mechanism 2 capable of locking the floor plate member B having a depth of 6,000 mm and a thickness of 28 mm is provided, and the installation underframe 1 is configured to be removable from the floor plate member 2 in cooperation with a jack mechanism 3 included therein. are doing.

Reference numeral 4 is a main frame member, and in this case, height 1,
A plurality of frame members 5 each having a frame structure of 500 mm × width 500 mm × depth 500 mm and having a frame structure are vertically stacked and connected. First, the lowermost frame member 5 is attached to the pedestal 1 a at the center of the installation frame 4. On the frame member 5, a number of different frame members 5 corresponding to the height of the building are stacked and connected.

Reference numeral 6 denotes an elevating member, which in this case is formed into a square frame shape having a frame structure so as to surround the main frame member 4, and the elevating member 6 is composed of a total of eight guide rolls 7 for the upper and lower parts of the main frame. A lifting motor 8 provided with a speed reducer and a brake mechanism that can be lifted and lowered along the member 4 and can be rotated and stopped and fixed at an arbitrary position is mounted on the lifting member 6, and a pinion 9 is mounted on the main shaft of the lifting motor 8. The rack 10 is vertically mounted on each of the frame members 5, and the lifting motor 6 is driven to engage the pinion 9 with the rack 10 so that the lifting member 6 can be moved up and down and stopped.

Reference numeral 11 denotes a moving member, which in this case is formed in the shape of a square frame having a frame structure, and is arranged in the direction of approaching and separating from the wall surface of the building N by the guide rollers 12 and 13 and the guide roller 14 on the elevating member 6. Is provided so as to be horizontally reciprocally movable, and the rotating shaft 15 is mounted on the elevating member 6 by a bracket 16, a spanner hook portion 17 is formed on the rotating shaft 15, and a sprocket 18 is attached to the rotating shaft 15. The sprockets 19 and 20 are rotatably attached to a position below the rotary shaft 15 of the elevating member 6, and a chain 21 is hung between the sprockets 18, 19 and 20, and one end of the chain 21 is attached to the moving member 11. The front end is fixed by the mounting plate 22, and the other end of the chain 21 is fixed to the rear end of the moving member 11 by the mounting plate 23. Then, the spanner hook 17 is hooked with a spanner (not shown), By normal and reverse rotation of the shaft 15, is reciprocally movable in forming the mobile member 11 in the longitudinal direction via a chain 21.

Reference numeral 24 denotes a scaffold member, which extends horizontally on both sides of the moving member 11 and is formed by a folding mechanism 25 so as to be foldable from the left-right direction to the front-back direction. In this case, the scaffold member 24 is a fixed scaffold frame. 26 and a telescopic scaffolding frame 28 which is provided to be telescopically movable by a telescopic mechanism 27. In this case, the fixed scaffolding frame 26 is formed in a square frame shape of a frame structure, and a pair of connecting plates 29 are formed on both left and right side surfaces of the moving member 11. And a pair of joint plates 3 at the inner end of the fixed scaffolding frame 26.
0 is projected, and the swivel shaft 31 and the slip-off shaft 32 are inserted between each connecting plate 29 and the joint plate 30, whereby the fixed scaffold frame 26 is moved from the left-right direction to the front-rear direction about the swivel shaft 31. The fixing scaffold frame 26 is formed to be foldable, and the fixed scaffolding frame 26 is fixed in the horizontal direction in cooperation with the swivel shaft 31 by inserting the removal shaft 32 between the connecting plate 29 and the joining plate 30. ing.

Further, in this case, the telescopic scaffolding frame 28 is formed in the shape of a square frame having a frame structure that can be inserted into the fixed scaffolding frame 26, and the corner bottom surface of the telescopic scaffolding frame 28 can be slidably placed. The mounting rails 33 are provided on the fixed scaffolding frame 26, whereby the telescopic scaffolding frame 28 is provided so as to be able to extend and contract with respect to the fixed scaffolding frame 26 by an operator's pulling out or pushing operation, and the fixed scaffolding frame 26 and the moving member 11 are provided. An auxiliary scaffolding frame 34 is detachably installed between the fixed scaffolding frame 26, the telescopic scaffolding frame 28, and the auxiliary scaffolding frame 34. Is configured to be fixed at a predetermined drawing position by a stop mechanism (not shown).

Reference numeral 36 denotes a handrail frame member, which is composed of a vertical pipe 36a and a horizontal pipe 36b, and is erected detachably on the fixed scaffold frame 26, the telescopic scaffold frame 28, and the auxiliary scaffold frame 30 in a frame shape. Further, the lateral tubes 36b of the handrail frame member 36 erected on the fixed scaffolding frame 26 and the telescopic scaffolding frame 28 are formed so as to be inserted through each other, whereby the telescopic operation of the telescopic scaffolding frame 28 relative to the fixed scaffolding frame 26. Is configured to allow.

Reference numeral 37 denotes a lock mechanism, which is provided between the main frame member 4 and the elevating member 6 and has a structure for fixing the elevating member 6 at an arbitrary stop position.

In this case, in the lock mechanism 37, the case body 38 is attached to the elevating member 6 by the bolts 39, and the gear shafts 40 and 40 are rotatably mounted in parallel on the case body 38 so that the gear shafts 40 and 40 can be connected to each other. Gears 41, 41 that can be engaged with the gears 41, 41 are installed eccentrically on the gears 41, 41, and the mounting shafts 42, 42 are mounted on the mounting shafts 42, 42.
3 and 43 are rotatably pivotally mounted, and slidable cam surfaces 38a and 38a are formed on the slopes 43a and 43a of the cam members 43 and 43 on the case body 38, and one of the cam members 43 meshes with the rack 10. A possible meshing portion 43b is formed, a spanner hooking portion 44 is formed on one gear shaft 40, and a spanner (not shown) is hooked on the spanner hooking portion 44 to form one gear shaft 4
By rotating 0 in forward and reverse directions, the respective gears 41, 41 rotate in mutually different directions, and when the gears 41, 41 rotate in the direction of the arrow in FIG. 10, the cam members 43, 43 are inclined surfaces 43a, 43a and the cams 43a, 43a. Sliding with the surfaces 38a, 38a causes the mounting shafts 42, 42 to move closer to each other while floating, and the meshing portion 43b formed on one cam member 43 meshes with the rack 10 and the other cam member 43 When the back surface of the rack 10 is pressure-contacted, the lifting member 6 is fixed to the main frame member 4 by this, and when rotating in the direction opposite to the arrow direction in FIG.
3 and 43 are slopes 43a and 43a and cam surfaces 38a and 38a.
By sliding with respect to the mounting shafts 42, 42, the cams 43 move away from each other while floating around the mounting shafts 42, the engaging portion 43b formed on one cam member 43 moves away from the rack 10, and the other cam member 43 also moves from the rear surface of the rack 10. It is configured to separate from each other, thereby allowing the elevating operation of the elevating member 6 with respect to the main frame member 4.

Since this embodiment has the above configuration,
For example, the installation frame 1, the main frame member 4, and the scaffolding member 24 are disassembled and transported to a construction site or the like. In this case, the main frame member 4 is disassembled into a plurality of frame members 5 and the scaffolding member 24 is used. Is disassembled into the fixed scaffolding frame 26, the telescopic scaffolding frame 28, the auxiliary scaffolding frame 34, and the handrail frame material 36, and is carried in, and the installation frame 1 is fixed to the floor plate member B installed at a predetermined position by the locking mechanism 2. Installation underframe 1, main frame member 4 and scaffold member 24
Are assembled with each other by bolts, and in this state, the lifting / lowering motor 8 is driven to move the lifting / lowering member 6 up and down along the main frame member 4 to raise / lower the scaffolding member 24 to an appropriate height according to the work site of the building N. And the moving member 11 is moved in the front-rear direction by the rotation of the rotating shaft 15 to be arranged close to the building N,
Depending on the working height, the work of height is performed on the scaffolding member 24 while moving up and down the elevating member 6 and the moving member 11.

Therefore, the height of the scaffolding member 24 can be set at an arbitrary height according to the work site of the building N by raising and lowering the raising and lowering member 6, and the moving member 11 can be moved back and forth to an arbitrary front and rear position. The scaffolding member 24 can be installed. Therefore, for example, in the construction of the outer wall of the building N or the like, even when the eaves portion or the projecting portion of the roof is present, the outer wall of the moving member 11 is not in the way. The moving member 11 can be moved closer to the outer wall after being moved up and down in a state of being separated from the outer wall, the gap between the scaffold member 24 and the outer wall can be made as small as possible, and the safety can be improved. The work can be facilitated and the work efficiency can be improved. Moreover, the assembly and disassembly work can be facilitated and the work cost can be reduced as compared with the conventional one. The since a lock mechanism 37 which is positioned fixed to the main frame member 4, mixture was allowed to lift the lifting member 6 appropriately height, the locking mechanism in its stop position 37
Thus, the elevating member 6 can be reliably stopped and held, and it is possible to prevent the elevating member 6 from being unexpectedly lowered and improve work safety.

Further, in this case, the elevating member 6 is constructed so as to elevate and lower by the cooperation of the pinion 9 driven by the elevating motor 8 and the rack 10, so that the elevating member 6 is smoothly moved up and down. And the structure can be simplified. In this case, the locking mechanism 37 is
The case body 38 is arranged on the elevating member 6, and the case body 38
The gears 41, 41 that can be meshed with each other are provided in the
The cam members 43, 43 are rotatably pivotally attached to the cam member 43 in an eccentric state, and the slopes 43a, 43a are attached to the cam member 43, 43.
And the slope 4 of the cam members 43, 43 on the case body 38.
The rack 10 provided with the cam member 43 on the main frame member 4 is provided with slidable cam surfaces 38a and 38a.
Since the meshing portion 43b that can be meshed with is formed, when the elevating member 6 attempts to descend, the slope 43a.
The meshing portion 43b formed on the cam member 43 by the wedge action between the cam surface 3a and the cam surfaces 38a, 38a meshes with the rack 10, and the other cam member 43 presses the back surface of the rack 10. The elevating member 6 can be reliably fixed to the main frame member 4 by the clamping pressure accompanied by the wedge action, and the work safety can be further enhanced.

Further, in this case, since the scaffolding member 24 is provided so as to be extendable and contractible, as shown in the state of FIG. 1 to the state of FIG.
The length can be appropriately set according to the work range of the building N, the work efficiency can be improved, and in this case, the main frame member 4 can be stacked and disassembled into a plurality of frame members 5. Therefore, by separating the plurality of frame members 5 into a single frame member 5, transportation and transportation can be performed more easily, and by selecting the number of frame members 5, the working height of the building N can be increased. The main frame member 4 having an appropriate length according to
Greater versatility of use.

The present invention is not limited to the above-mentioned embodiment, but the structures of the main frame member 4, the elevating member 6, the moving member 11, the lock mechanism 37, etc. may be appropriately designed and changed. Is.

[0020]

As described above, according to the present invention, the height of the scaffolding member can be set to an arbitrary height according to the work site of the building by raising and lowering the raising and lowering member. Moreover, the scaffolding member can be installed at any desired front and back position by moving the moving member forward and backward, and the gap between the scaffolding member and the outer wall can be made as small as possible to improve safety and work It is easy to improve work efficiency, and moreover, assembly and disassembly work are easier than before, and work cost can be reduced. In particular, the lifting member is located on the main frame member. Since it has a lock mechanism to fix it, after raising and lowering the elevating member to an appropriate height, the elevating member can be reliably stopped and held at the stop position by the lock mechanism, preventing accidental lowering of the elevating member. Cheap work It is possible to improve the sex.

According to the second aspect of the present invention, since the elevating member is configured to elevate and lower by the cooperation of the pinion and the rack driven by the elevating motor, the elevating and lowering member is moved. Can be carried out smoothly and the structure can be simplified. Further, in the invention according to claim 3, in the lock mechanism, the case body is arranged on the elevating member, and the lock body is mutually attached to the case body. A meshable gear is provided, a cam member is rotatably pivotally attached to the gear in an eccentric state, a slope is formed on the cam member, and a slidable cam surface is formed on the slope of the cam member on the case body. Since the cam member is formed by forming the meshing portion capable of meshing with the rack provided on the main frame member, when the elevating member attempts to descend, it is formed on the cam member with a wedge action of the slope and the cam surface. The meshed part meshes with the rack and Square of the cam member will be pressed against the back of the rack, the lifting member by pinching with the wedging action to be able to reliably fix the main frame member, it is possible to enhance the safety of much more work.

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

[Brief description of drawings]

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

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

FIG. 3 is a partially enlarged side view of the embodiment of the present invention.

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

FIG. 5 is a partial rear view of the embodiment of the present invention.

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

FIG. 7 is a partially enlarged cross-sectional view of the embodiment of the present invention.

FIG. 8 is an overall plan view of an embodiment of the present invention.

FIG. 9 is a partially enlarged front view of the embodiment of the present invention.

FIG. 10 is an enlarged front view of the lock mechanism according to the embodiment of the present invention.

FIG. 11 is a partially enlarged plan view of the lock mechanism according to the embodiment of the present invention.

FIG. 12 is a partial perspective view of the lock mechanism according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Installation underframe 4 Main frame member 6 Elevating member 8 Elevating motor 9 Pinion 10 Rack 11 Moving member 24 Scaffolding member 37 Lock mechanism 38 Case body 38a Cam surface 41 Gear 43 43 Cam member 43a Slope 43b Engagement part

Claims (3)

[Claims] 1. A transportable installation frame, a main frame member erected on the installation frame, an elevating member provided on the main frame member so as to be able to ascend and descend, and a horizontal direction in the elevating member in the front-rear direction. A reciprocating movable member and a scaffolding member provided on the movable member in the left-right direction, and a lock mechanism for fixing the elevating member to the main frame member in position. Scaffolding equipment. 2. The scaffolding device according to claim 1, wherein the elevating member is configured to elevate and lower by the cooperation of a pinion driven by an elevating motor and a rack. 3. In the lock mechanism, a case body is disposed on the elevating member, gears capable of meshing with each other are disposed on the case body, and a cam member is rotatably pivotally attached to the gear in an eccentric state. At the same time, the cam member is formed with an inclined surface, the case member is formed with a slidable cam surface on the inclined surface of the cam member, and the cam member is formed with a meshing portion capable of meshing with the rack provided on the main frame member. The scaffolding device according to claim 1 or 2, wherein