JPH0957661A - Scaffold device for wall surface work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily move a work machine according to a work place without assembling a scaffold and without changing mounting of the work machine. SOLUTION: A stand 1 formed as a rectangular solid-shaped frame structure is assembled from an upper frame 2, a lower frame 3 and columns 4. Wheels 7 are installed on the stand 1, and are made to travel along traveling rails 8. A work stage 18 on which a work machine is mounted is arranged in the stand 1. The work stage 18 is received by left and right suspending beams 17 extending in the longitudinal direction. Longitudinal directional both end parts of the suspending beams 17 are suspended from the four corners of the upper frame 2 by a suspending device so as to be raised and lowered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffolding device for wall surface work used for reinforcing a wall surface formed by excavation in civil engineering work.

[0002]

2. Description of the Related Art In the construction of highways, high-rise buildings, etc., as a part of foundation work, for example, a slot having a length of several meters to several tens of meters may be excavated in the ground. The side wall surface formed by this must be reinforced in some way. Generally, a method of directly injecting a coagulant into the side wall and then pouring concrete on the surface to harden it is adopted.

Further, in the case of road construction constructed by cutting mountains, it is carried out to prevent landslides by carrying out mountain retaining work on the side walls formed by cutting. Similarly to the above, a method is used in which a coagulant is injected into the mountain side wall and then concrete is cast on the surface to harden it.

A work machine for injecting a coagulant is usually used for the operation of injecting the coagulant into the wall in such a foundation work or a mountain retaining work, but conventionally, as a pre-preparation, a work machine along the wall is used. In addition, a stage is set up by scaffolding with an iron pipe, and a working machine for injecting a coagulant is mounted and used on the stage.

[0005]

However, in the conventional method of constructing the scaffold along the wall where the coagulant is to be injected, there is a problem that a great number of man-hours are required for constructing the scaffold,
Also, when the coagulant injection work at one location is completed and the injection location is changed vertically or horizontally, the work machine for coagulant injection needs to be moved to another location on the scaffolding. However, there is a problem that the construction period will inevitably become long.

Therefore, according to the present invention, it is possible to easily move the work machine to an arbitrary work site on the wall surface without constructing a scaffold by an iron pipe at the work site and every time the work site is changed without remounting the work machine. The present invention is intended to provide a scaffolding device for wall surface work capable of

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, wheels are attached to a frame assembled from an upper frame, a lower frame and a support as a rectangular parallelepiped frame structure, and the wheels are mounted along a traveling rail. Two suspension beams having guide rollers at both ends are arranged on both left and right sides through guide roller stays so that the suspension beams can travel in the front-rear direction and can be moved up and down along the columns of the gantry. Both ends of each are supported by a hoisting device hung from the four corners of the upper frame so that the hoisting beam can be lifted and lowered by the hoisting device, and a work stage is placed on the left and right hoisting beams, Furthermore, outriggers are provided at the four corners of the lower frame.

When working on the side wall, a pedestal is placed on a traveling rail laid in the direction along the wall, and the work machine is mounted on the work stage. After moving the gantry to a desired work location and raising and lowering the work stage to adjust the position of the work machine to the work location, a predetermined work is performed by the work machine. When moving to the next work location, move the gantry and raise / lower the work stage to align the work machine with the next work location.

Further, by making the work stage extendable in the left-right direction, the work stage can be brought closer to the wall surface during work.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show an embodiment of the present invention, in which an upper frame 2 and a lower frame 3 which are framed so as to have a rectangular planar shape, and on which,
The pedestal 1 having a rectangular parallelepiped skeleton structure is assembled from the columns 4 that connect the four corners of the lower frames 2 and 3, and the pedestal 1 is attached to each of the front and rear and left and right four surface portions of the pedestal 1 at upper and lower positions. The handrail fence 5 is detachably attached also for the reinforcement of 1. Further, the wheels 7 for traveling are attached to the undersides of the four corners of the pedestal 1 to attach the wheels 7 on either the front or rear side in the traveling direction. Driven by the drive device 6,
Two traveling rails 8 held at regular intervals are laid on a space material 30 such as sleepers on the paved road surface of the road or on the excavated floor surface, and the pedestal 1 is mounted on the traveling rails 8. Is mounted via the wheels 7, so that the gantry 1 can be moved in the front-rear direction (X direction) along the traveling rail 8.

Further, outriggers 9 for fixing the positions of the pedestal 1 when the pedestal 1 is stopped on the rail 8 for traveling are provided on the front and rear surfaces of the lower ends of the four corners of the pedestal 1, respectively. As shown in the enlarged plane of FIG. 4, the outrigger 9 has a base end portion of an arm 12 by a vertical axis 11 between two upper and lower support plates 10 horizontally fixed and fixed to an end surface of the lower frame 3. It is attached so as to be rotatable in the horizontal direction, and a jack 15 is attached to the tip of the arm 12.
In order to store and extend the outrigger 9 by rotating the arm 12 in the horizontal direction and to fix the arm 12 in any position in the horizontal direction, Support plate 1
A plurality of pin holes 14 are formed at the same radial position with the vertical axis 11 of 0 as the center, and are locked by the pins 13.

Inside the gantry 1, suspension beams 17 extending in the front-rear direction are arranged on both left and right sides, and both end portions of the left and right suspension beams 17 are connected to the front side of both the left and right sides of the upper frame 2. Eye plate 29 attached to the rear side
In addition, each chain block 16 is suspended so that the four chain blocks 16 can raise and lower the two suspension beams 17, and the work stages 18 are mounted and fixed on the left and right suspension beams 17. , Work stage 18
Can be raised and lowered together with the suspension beam 17. As shown in FIG. 3, the working stage 18 is constructed such that an auxiliary stage 20 is slidably installed on one side or both sides in the left-right direction of a working stage body 19 having a rectangular frame structure. It can be expanded and contracted in the left-right direction (Y direction) by moving it in and out. Reference numeral 21 denotes a fixing hole provided in the skeleton of the auxiliary stage 20 for locking the auxiliary stage 20 at an arbitrary expansion / contraction amount position, and 22 denotes a fixing pin provided on the working stage body 19 side for being inserted into the hole 21. .

Further, at the left and right outer positions of both ends of the left and right suspension beams 17, two upper and lower guide roller stays 23 extending outward and having guide rollers 24 attached at their tips are provided.
When the guide roller 24 of each of the guide roller stays 23 is brought into contact with the inner side surface of the support column 4 to roll by using the contact surface of the support column 4 as a guide, the work stage 18 is moved up and down. The suspension beam 17 is guided by the support column 4 through the guide roller stays 23 to be lifted and lowered, so that the work stage 18 can be smoothly and stably moved up and down.

Further, at both ends of the left and right suspension beams 17, avoiding interference with the guide roller stay 23, FIG.
As shown in the enlarged view of FIG. 3, stopper plates 25 each having an L-shape outwardly projecting so as to be overlapped with the front and rear direction opposing surfaces of the support column 4 are attached, and the stopper plate 25 is attached to the stopper plate 25 in the front and rear direction. An appropriate number of lock holes 27 are provided so as to correspond to the lock holes 26 formed at required vertical intervals in the facing surface portion, and the lock holes 27, 2 are provided.
By inserting the lock pin 28 into 6, the suspension beam 1
The position of 7 is held at an arbitrary height position of the column 4, and the work stage 18 is fixed at an arbitrary height position.

Now, as an example, as shown by a chain double-dashed line in FIG. 1, the excavated portion 3 is formed by excavating the ground to a required depth.
Explaining the case of performing the work of injecting the coagulant into the second side wall 32a, first, the base material 30 is laid on the bottom of the excavation portion 32, and the two traveling rails 8 are laid on the base material 30. Next, the gantry 1 is assembled on the traveling rails 8 and the chain blocks 16 from the eye plates 29 fixed to the upper frame 2 of the assembled gantry 1 are respectively assembled.
The suspension beam 17 on the chain block 16
Both end portions of the above are supported and suspended, and the working stage 18 is mounted on the hanging beam 17 and assembled, and the working machine 31 for injecting a coagulant is further mounted on the working stage 18. Thereafter, the wheels 7 are rotated by the drive of the drive device 6 to move the gantry 1 along the traveling rails 8 to a position to be worked, and then the outriggers 9 are extended from the retracted state to travel the traveling rails 8. Is set as a base, and the gantry 1 is fixed on the rail 8 for traveling. In this case, the extended position of the outrigger 9 is the arm 1
Since the turning position of 2 can be selected by inserting the pin 13 into the pin hole 14, the jack 15
Can be further opened in the left-right direction from the upper surface of the traveling rail 8 to increase the dimension between the jacks 15 of the left and right outriggers 9 so that the pedestal 1 can be stably supported and fixed.

Next, in order to match the working machine 31 for injecting the coagulant to the coagulant injecting point, the chain block 16 is operated to raise or lower the suspension beam 17 to move the work stage 18. When the work stage 18 is moved to a predetermined height position so as to be displaced to a predetermined height position, the lock holes 27 of the stopper plates 25 fixed to both ends of the suspension beam 17 are fixed to the support columns 4 of the support column 4. The work stage 18 is stabilized by inserting the lock pin 28 according to the lock hole 26.

In the above state, the coagulant is injected into the side wall 32a by the work machine 31 for injecting the coagulant. At this time, if the handrail shelf 5 facing the side wall 32a for performing the injection work interferes with the injection work, the handrail shelf 5 at that portion may be removed, and the side wall 32a for the injection work may be removed. If the auxiliary stage 20 is extended from the end of the work stage 18 facing the front, the work stage 18 can be expanded, and the worker can approach the side wall 32a.

When changing the operation of injecting the coagulant in the vertical direction of the side wall 32a, the lock pin 28 is removed and then the chain block 16 is operated as shown by the chain double-dashed line in FIG. By displacing the work stage 18 in the vertical direction and stopping at a predetermined position, the lock pin 28 is moved to the stopper plate 2 in the same manner as above.
The lock hole 27 of the column 5 and the lock hole 26 of the column 4 are passed through for locking.

In this way, the side wall 32 extends in the vertical direction.
When the work of injecting the coagulant into a plurality of points of a is completed, the jack 15 of the outrigger 9 is raised, and then the gantry 1 is moved on the traveling rail 8 to move to the next work point,
When it comes to the work place, after fixing the gantry 1 in the same manner as described above, the injection work is performed. After that, the same operation is repeated to perform various necessary works with the gantry 1 as a scaffold over the entire area of the side wall 32a.

As described above, in the present invention, when the coagulant is injected into the side wall 32a, it is not necessary to assemble the scaffold made of iron pipe over the entire length of the plurality of parts to be worked, and the pedestal 1 Once the work machine 31 for injecting the coagulant is once mounted on the work stage 18 which is suspended and supported inside, the work stage 18 and the work machine 31 for injecting the coagulant need to be replaced. Therefore, the coagulant injection work can be efficiently performed in a short period of time. Further, since the handrail fences 5 attached to the gantry 1 are arranged on the outer sides of the front, rear, left and right, the inner side of the gantry 1 can be widely and effectively used.

Next, FIG. 6 shows another embodiment of the present invention, in which the work stage 1 is different in the amount of lifting and lowering by a total of four chain blocks 16 that suspend both ends of two suspension beams 17.
8 shows an example of a lock mechanism when the 8 is arranged in an inclined state and is used. In the above-described embodiment, the case where the work stage 18 is vertically moved up and down and fixed at an arbitrary height position is used. Although shown, the work stage 31 is mounted on the work stage 18 due to the relationship between the work machine 31 and the side wall 32a.
It may be advantageous to tilt the work stage 18 in the left-right direction, but in this case, the work stage 18 is moved in the left-right direction by increasing the amount of lift by the chain blocks 16 on the opposite side of the side wall 32a. In order to stabilize the posture of the work stage 18 when it is used in this posture, the stopper plate 25 fixed to the end of the suspension beam 17 is further extended to the outside. The lock holes 27a are appropriately provided at that position.

In the case of the embodiment shown in FIG. 6, the stopper plate 25 fixed to the suspension beam 17 on the side wall side.
Of the lock pin 27 to the lock hole 26 of the column 4
After the positioning is performed by 8, the chain block 16 raises only the hanging beam 17 on the side opposite to the side wall, so that the lock hole 27a of the stopper plate 25 fixed to the raised hanging beam 17 is fixed to the lock hole of the column 4. If the work pin 18 is positioned in accordance with the position 26 by the lock pin 28, the posture when the work stage 18 is tilted in the left-right direction can be stabilized.

The present invention is not limited to the above-mentioned embodiment, but for example, the case where the chain block 16 is used to move up and down the working stage 18 via the suspension beam 17 has been shown. May be used, and as an example, the coagulant injection work using the work machine 31 for injecting the coagulant into the side wall 32a of the excavation portion 32 formed by excavating the ground. However, in the case of mountain retaining work on the side wall formed by cutting the mountain side during road construction and mountain retaining work at a place where there is a possibility of landslide, it is adopted by laying the traveling rail 8 on the road surface. What can be done, it can be applied to the work stage 18 mounted with another work machine to perform a work such as driving an anchor on the side wall, and the hanging beam 1
The guide roller stay 23 attached to 7 can be configured to be constantly urged by a spring or the like so that the guide roller 24 is constantly pressed against the support column 4, and if this is done, as shown in FIG. Work stage 1
Needless to say, it is advantageous that the device 8 can be smoothly moved up and down even when the device 8 is moved up and down in an inclined posture, and that various changes can be made without departing from the scope of the present invention.

[0024]

As described above, according to the scaffolding device for wall surface work of the present invention, the pedestal having a rectangular parallelepiped frame structure is provided.
It is possible to travel in the front-back direction along the rails for traveling, and the hanging beams arranged on both left and right sides inside the frame are hung by the hoisting device, and the working stage is placed on the hanging beam. When the machine is installed, the work machine can be easily moved to the desired work site without changing the machine every time the work site is changed, and work can be performed without building a scaffold even if the work range is large. It can be carried out, the work period can be shortened, and the work stage can be expanded and contracted in the left and right directions.
The work stage can be brought closer to the wall surface, improving workability. Furthermore, the guide roller stay is attached to the suspension beam so that the guide roller rolls along the support column. When the beam is hung up and down by a lifting device such as a chain block, the beam can be stably moved up and down, and it is possible to eliminate shaking of the work stage, which is an excellent effect.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a wall surface scaffolding device of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a plan view of a work stage.

FIG. 4 is a plan view of an outrigger mounting portion.

5 is an enlarged view of VV in FIG.

FIG. 6 shows another embodiment of the present invention, and is a schematic diagram corresponding to the line V-V enlarged view of FIG.

[Explanation of symbols]

 1 Stand 2 Upper Frame 3 Lower Frame 4 Support 6 Drive 7 Wheel 9 Outrigger 16 Chain Block (Lifting Device) 17 Hanging Beam 18 Working Stage 23 Guide Roller Stay 24 Guide Roller

Claims (2)

[Claims] 1. A wheel is attached to a frame assembled from an upper frame, a lower frame, and a column as a rectangular parallelepiped frame structure so that the vehicle can travel in the front-rear direction along a traveling rail, and along the column of the frame. Two suspension beams provided with guide rollers at both ends via guide roller stays are arranged on both left and right sides, and both ends of each suspension beam are suspended from the four corners of the upper frame. Each of them is supported by a device so that the hoisting beam can be lifted and lowered by the hoisting device, work stages are placed on the left and right hoisting beams, and further, outriggers are provided at the four corners of the lower frame. A scaffolding device for wall work characterized by having. 2. The scaffolding device for wall surface work according to claim 1, wherein the work stage is extendable in the left-right direction.