JPS599684B2 - mobile suspended scaffolding - Google Patents

Description

Detailed Description of the Invention This invention is a movable suspended scaffold used for repairing or inspecting a structure with legs such as an offshore bridge, and when moving the scaffold in the longitudinal direction of the structure, There is no need to replace the scaffolding because it can be moved while taking in the space.In other words, the front, rear, left and right walkways surrounding the four sides and facing each other are 1.1', 1",
1", the left and right hallways 1" jl// are divided from the center, and the ends of these divided bodies are connected to the hallways 1 and 1'.
Rotatably attached to the end of the corridor 1, 1', 1', 1"
A bottom plate 2 is provided at the bottom of the enclosing part of ``, and the bottom plate 2 is divided laterally from the center, and the ends of this divided body are rotatably attached to the front and rear walkways 1, 1'. The device is characterized in that a hanging part 3 and moving wheels 4 are provided at ''.

When repairing or inspecting the underside of a girder on a structure with legs, such as a normal bridge or offshore bridge, a movable suspended scaffold is used because the legs of the structure get in the way of moving the scaffold. It was considered unsuitable.

On the other hand, with normal scaffolding that does not move, it takes a huge amount of effort to replace it.

The present invention is intended to eliminate such inconveniences. Next, an embodiment will be described with reference to the drawings.
1', i "1///, corridor 1 located on the left and right"
t1'' from the center, and the front and rear walkways 1, 1 at the ends are divided so that these divided bodies open outward to the left and right.
' is pivoted using butterfly plates 5 at the left and right ends of the corridors i, t',
A bottom plate 2 is provided at the bottom of the enclosing portions of i'' and i''′ through a joist 6, and this bottom plate 2 is divided horizontally from the center, and the ends are opened so that each divided body opens downward and outward. It is pivoted to the lower end of the front and rear walkways 1, 1'.

On the other hand, in the front and rear walkways 1 and 1', there is a hanging part 3 for suspending the entire scaffold, and a moving part built into the hanging part 3 and placed on a rail 7 provided in the longitudinal direction on the underside of the bridge girder. and the ends of the wires 8 are connected to the bottom plate 2,
A wire 8 is wound and stored in a winding winch 9 provided on the front and rear walkways 1, 1', and a winch 10 for moving the whole is provided on the walkways 1, 1'.

Locking projections 11 and 12 are provided at adjacent corners of the front and rear hallways 1, 1/ and the left and right hallways 1#, 1', and a square screw 13 is inserted between the projections 11 and 12.

Next, how to use it will be explained. First, a rail 7 is laid on the underside of the bridge girder by a certain distance, extending slightly beyond the width of the girder. Wheels 4 are placed on the rail 7, and the entire scaffold of this invention is suspended.

Thereafter, the rails 7 will be laid using this suspended scaffolding.

Next, another hanging scaffold is hung from the laid scaffold 7, and this is used to paint the underside of the bridge girder.

To move the suspended scaffold of this invention, use the winch 10 to wind up the wire with one end fixed to the bridge girder, and when it comes to a part of the bridge pier, first remove the wires from the soil rolling winch 9. While pulling it out, divide the bottom plate 2 horizontally from the center, open the divided body downward and outward,
It is hung vertically from the front and rear aisles 1 and 1'.

Next, divide the right hallway 1'' from the center, open this divided body outward to the left and right, and connect the ends of the divided body to the front and rear hallways 1, 1'.
The ends of the latching protrusions 11 and 12 are used to fix each other with square screws 13, and the divided body is a linear extension of the walkways 1 and 1'.
to be located.

In this state, advance the entire scaffolding and move the pier part to walkway 1.1.
It is taken into the space surrounded by ', 1'', the divided body of the walkway 1'' is closed, and the square screws 13 are tightened to fix the walkways 1, 1' and 1'''.

Next, the left hallway f is divided from the center, the divided body is opened to the left and right outside, and the ends of this divided body and the ends of the front and rear hallways 1 and 1' are connected to each other using the locking convex parts 11 and 12. After fixing with the square screws 13 and positioning the divided body on the linear extension of the front and rear walkways 1 and 1', move the suspended scaffolding further forward, move the pier out of the scaffolding, and then close the left walkway r. , tighten the square screws 13 to fix the walkways 1, 1' and 1''.

Next, the wire 8 is wound up with the winding winch 9 and the bottom plate 2 is closed, completing the passage through the bridge pier.

Between the piers, the left and right walkways 1" 1 /// and the bottom plate 2 are closed, and workers ride on the walkways 1.1', 1" 1 /// or the bottom board 2, and move the scaffolding while performing painting work etc. Then, each time you come to a pier, repeat the above action to bring the pier into the scaffolding, and move past this to advance the scaffolding.

Note that with the left and right walkways 1" or 1"' and the bottom plate 2 open, the entire scaffold will be structurally unstable.
A relatively robust structure can be maintained by providing a lever block 14 at the top of the front and rear walkways 1 or 1'' and using this to tension the wires 15 that are strung between the walkways.

The movable suspended scaffold of this invention is used for repairing or inspecting structures with legs, such as ordinary bridges and offshore bridges, because the legs of the structure can be taken into the scaffold and moved while passing through them. This saves the trouble of replacing scaffolding every time.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view of the movable suspended scaffold of the present invention, FIG. 2 is a side view of the same, FIG. 3 is a front view of the same, FIG. 5 is a plan view of the same as above, FIGS. 6 to 9 are side views showing usage, and FIGS. 10 to 13 are plan views of the same. 1, 1', r, 1"'...Aisle, 2...
・Bottom plate, 3...Latching part, 4...Wheel.

Claims (1)

[Claims] 1 Front, rear, left and right corridors i, i', τ surrounding all sides and facing each other
, 1'', the left and right hallways r and 1'' are each divided from the center, and rotatably pivoted to the ends of the front and rear hallways 1, 1', which are the ends of this divided body. 1', 1#, 1
A bottom plate 2 is provided at the bottom of the enclosing part of
A movable suspended scaffold is rotatably attached to a shaft, and is provided with hanging hooks 3 and moving wheels 4 on front and rear walkways 1 and 1'.