JPH0133714Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a suspended mobile scaffolding for maintenance and inspection work on roof trusses or roofs.

Problems with the Prior Art Conventionally, in order to maintain, inspect, or construct the roof truss or roof of a factory or hangar, it is necessary to assemble a frame scaffold that can reach the roof truss from the top of the floor, or to install a suspended scaffold from the roof truss. They were installed vertically or used rolling towers.

However, if the frame scaffold is a suspended scaffold, it not only requires a large amount of assembly materials, but also requires a lot of manpower and time for the assembly and disassembly work, and it is inevitable that the work cost will increase significantly. .

In addition, since rolling towers are usually constructed at a fixed height, in the case of a sloped roof truss, it is necessary to prepare several types of rolling towers with different heights. During this process, the crew on board had to temporarily disembark for safety reasons, resulting in extremely poor work efficiency.

Purpose of the invention This invention was proposed to solve the above-mentioned conventional problems, and its purpose is to provide a suspended mobile scaffold that has extremely high workability and safety and can be manufactured at a low cost. shall be.

Structure of the invention This invention relates to a suspended mobile scaffolding, in which a work scaffold has a rectangular frame consisting of diagonal members and horizontal members. The work is carried out by providing a hanging part so that it can be suspended from the lower chord of the roof frame truss, and installing at least two running wheels that can run on the lower chord as a rail in each hanging part so that they can be attached and detached from the lower chord. The above object is achieved by constructing the scaffold so that it can run in the diagonal direction of the roof truss and in the horizontal direction.

Embodiment Hereinafter, this invention will be explained with reference to an illustrative embodiment. A suspended movable scaffold 1 has a predetermined width,
The roof truss 2 has a substantially step-like structure in the slope direction, and handrails 3 for safety are attached to both front and rear ends and left and right ends of the roof truss 2.

Further, pillars 4, 4 are erected at the front and rear four corners of the suspended mobile scaffold 1, and diagonal members 5, 5 are installed between the front and rear pillars 4, 4, and Horizontal members 6, 6 are installed across the columns 4, 4. The horizontal members 6, 6 are installed on the left and right diagonal members 5, 5.

At both front and rear ends of the left and right diagonal members 5, 5, hanging portions 7, 7 are provided at two locations separated by appropriate distances in the longitudinal direction of the left and right diagonal members 5.

Further, two hanging portions 8, 8 are provided at both left and right end portions of the front and rear horizontal members 6, 6, separated by appropriate distances in the longitudinal direction of the front and rear horizontal members 6.

The hanging portion 7 is constructed by attaching wheels 10, 10 within a hanging frame 9.

The hanging frame 9 has side frames 1 at both left and right ends of the lower frame 11.
2 and 12 are pinned to the lower frame 11 with connecting pins 13 and 13 so that they can be raised and lowered, so that the cross-section has a substantially groove shape that opens directly above, and the lower end between the left and right side frames 12 and 12 is formed. A width stopper pin 14 is removably inserted into the portion.

Inside the side frames 12, 12, shafts 15, 15 are spaced a predetermined distance apart in the front and back direction of the suspended movable scaffold 1, and protrude from the side frames 12, 12 so as to be able to freely rise and fall. It penetrates the side frames 12, 12, and stoppers 16, 16 are removably attached to the penetrating portions by screws or inserts. Further, among the shafts 15, 15, the shaft 15 located on the front side of the suspended movable scaffold 1 is installed at a higher position than the shaft 15 located on the rear side.

Traveling wheels 10,1 are attached to the shafts 15,15. The running wheel 10 is formed in the shape of a truncated cone, and has a small diameter with the open end facing inward and a shaft 15,1.
It is attached to 5.

The hanging frame 9 configured in this way has diagonal members 5, 5
A lower chord member 2 is rotatably attached to and detachable from a mounting pin 19 between brackets 18 protruding from the upper surface, and extends in the slope direction of the roof truss 2.
0, the lower chord member 20 can be inserted and installed under the wheels 10, 10. The suspended mobile scaffolding 1 includes wheels 10 of each hanging frame 9,
10 is configured to be able to freely move in the direction of the slope of the roof truss 2 by traveling by power or human power using the lower chord members 20, 20 as guide rails.

The hanging portion 8 is constructed by attaching wheels 21 within the hanging frame 17.

The hanging frame 17 has side frames 2 at both left and right ends of the lower frame 22.
3 and 23 are pinned to the lower frame 22 by connecting pins 13 and 13 so that they can be raised and lowered freely, and the left and right side frames 2
A substantially rectangular frame is formed by connecting upper frames 24, 24 protruding from the upper ends of 3, 23 with connecting pins 25, 25. The connecting pins 25, 25 are
It is detachably inserted into the left and right upper frames 24, 24.

Brackets 26, 26 are vertically provided on the lower surface of one of the left and right upper frames 24, 24, and a running wheel 21 is mounted between the left and right brackets 26, 26.

The hanging frame 17 configured in this manner is rotatably attached to and detachable from the brackets 18, 18 protruding from the upper surfaces of the horizontal members 6, 6 by means of a mounting pin 19, and The structure is such that the lower chord member 20 extending in the direction can be inserted and installed under the wheel 21.

The suspended mobile scaffolding 1 has each hanging frame 17.
The running wheels 21 are configured to be able to move freely in the horizontal direction of the roof truss 2 by running by human power or power using the lower chord member 20 as a guide rail.

Next, in order to install the suspended mobile scaffolding 1 by hanging it from the lower chord members 20, 20 extending in the slope direction of the roof truss 2, pull out the width stopper pins 14 of the hanging frame 9. Fold 12, 12 to both sides. Next, the suspension frame 9 is brought close to the lower side of the lower chord member 20, the left and right side frames 12, 12 are raised on both sides of the lower chord member 20, the running wheels 10, 10 are placed on the lower chord member 20, and then the left and right side frames 12, 12 are raised on both sides of the lower chord member 20, A width stopper pin 14 is inserted into the lower end between the frames 12 and 12.

In this state, the suspended movable scaffold 1 can freely move in the direction of the slope of the roof truss 2.

In addition, in order to install the suspended mobile scaffolding 1 by hanging it from the lower chord members 20, 20 extending in the horizontal direction of the roof truss 2, the connecting pins 25 of the hanging frame 17,
25 and tilt the left and right side frames 23, 23 to both sides. Next, the suspension frame 17 is brought close to the lower side of the lower chord member 20, the left and right side frames 23 are raised on both sides of the lower chord member 20, the traveling wheels 21 are placed on the lower chord member 20, and then the left and right upper The connecting pins 25, 25 are inserted and inserted between the frames 24, 24.

In this state, the suspended movable scaffold 1 can freely move in the horizontal direction of the roof truss 2.

Then, the suspended mobile scaffolding 1 is attached to the roof truss 2.
When moving in the slope direction or horizontal direction, in order to pass through the node between the lower chord member 20 and diagonal member 28 of the roof truss 2, at the node, the front and rear suspension frames 9, 9 or the left and right suspension Frame 1
This is done by replacing the parts 7 and 17 with the lower chord material 20.

In addition, in order to change the moving direction of the suspended mobile scaffolding 1, at the node part, the hanging frame 9 and the hanging frame 1
This is done by replacing it with 7.

In addition, in order to move the suspended mobile scaffolding 1 manually, a pulley 29 is attached to the suspended mobile scaffolding 1,
A rope 27 is hung on this pulley 29 and the rope 27 is pulled.

Effects of the invention This invention has the above-mentioned configuration, and is installed by hanging from the lower chord of the roof truss, and the lower chord is used as a rail in the hanging part and runs in the slope direction and horizontal direction of the roof truss. At least two running wheels are provided on each wheel, which can be attached and detached from the bottom chord, making it possible to perform maintenance and inspection work on the entire roof truss using a single suspended mobile scaffolding, which provides extremely high workability and safety. . Moreover, since it has a simple structure, it can be manufactured at low cost.

[Brief explanation of drawings]

Figures 1 to 8 show a suspended mobile scaffold according to this invention, with Figure 1 being a side view, Figure 2 being a front view, Figure 3 being a plan view, Figure 4, Fifth
Figure 6 is a front view, side view, and plan view of the hanging frame, Figures 7 and 8 are front views of the hanging frame,
FIG. 1... Suspended mobile scaffolding, 2... Roof truss, 3... Handrail, 4... Support column, 5... Diagonal material, 6
...Horizontal member, 7, 8... Hanging part, 9... Hanging frame, 10... Running wheel, 11... Lower frame, 12...
Side frame, 13...Connection pin, 14...Width stop pin,
15...Shaft, 16...Stopper, 17...Hanging frame, 18...Bracket, 19...Mounting pin,
20... Lower chord material, 21... Running wheel, 22... Lower frame, 23... Side frame, 24... Upper frame, 25... Connecting pin, 26... Bracket, 27... Rope, 2
8... diagonal member, 29... pulley.

Claims (1)

[Scope of utility model registration request] A work scaffold that has a rectangular frame made of diagonal members and horizontal members has a plurality of hanging parts at both ends of each diagonal member and both ends of each horizontal member, so that it can be hung from the lower chord member of the roof frame truss. At the same time, at least two running wheels capable of running on the lower chord as a rail are installed in each hanging portion so as to be detachable from the lower chord, so that the work scaffold can run in the diagonal direction of the roof truss and in the horizontal direction. A suspended mobile scaffold characterized by: