JPH0460004A - Mobile scaffolding device for bridges - Google Patents

Abstract

PURPOSE:To avoid a barrier by constituting each support part provided on the lateral outside of a bridge of three beams disposed at determined intervals, said beams connecting a running part to a platform suspending part, and a movable mechanism capable of moving each beam independently in the lateral direction of the bridge. CONSTITUTION:A transfer platform device 1 for bridge is formed of a pair of running parts moving on a bridge 2, a support part 4, a platform suspending part 5, and a moving platform 7. The support part 4 is formed of three beams 40a-40c connecting the running part 3 to the suspending part 5, and a movable mechanisms 41a-41c moving each beam independently in the lateral direction of the bridge 2. When the device 1 avoids an illumination lamp 51 on the bridge 2 side part, the beam 40c on the moving directional upper stream side is moved in the lateral outside of the bridge 2, and then the device 1 is moved by one pitch so that the illumination lamp 51 can pass the beam 40c portion, and this is repeated to pass the device. Thus, the device can easily avoid a barrier.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mobile scaffolding device for a bridge that is movable while avoiding obstacles on the bridge.

[Prior Art] Conventionally, this type of mobile scaffolding device for bridges has been used, for example, for bridges where the upper chord of a bridge is used as a track, and running wheels that can be transferred or taken off on this track are used to inspect the side and bottom surfaces of the bridge. A system has been proposed that is installed on the side of the inspection vehicle so that if there is an obstacle on the upper chord, the running wheels are retracted to the outside of the side of the bridge and then returned to their original positions (
(See Japanese Unexamined Patent Publication No. 57-205602).

In addition, this type of mobile scaffolding device for bridges consists of a pair of unit scaffolds installed in parallel in a direction perpendicular to the bridge axis.
This unit scaffold is connected to a pair of running parts that can be fixed to the left and right sides of the bridge, a supporting part provided outward in the width direction of the bridge from these running parts, and a support part provided from the outer end of these supporting parts. A structure has been proposed that includes a scaffold hanging part hanging downward and a scaffold frame provided on the scaffold hanging part.

These mobile scaffolding devices for bridges can also be used for bridge inspections and other work while moving in the horizontal direction on the bridge.

[Problem to be solved by the invention]

By the way, there are facilities and obstacles with a long history on and beside the bridge.
For example, in the case of lighting, etc., the former device stores the running wheels outside the side of the bridge and is configured so that they can be returned later to move forward by dodging obstacles, or the latter device also uses the support were installed at regular intervals, and the arm was rotated before reaching the obstacle to avoid the obstacle.

Therefore, in the case of the former device, the connection for avoiding obstacles is complicated, and the operation for avoiding obstacles is complicated and complicated. In addition, in the case of the latter device, the second arm is rotated to avoid obstacles, so if there is another obstacle within the rotation radius of the arm, it may not be possible to avoid the obstacle. The disadvantage is that when obstacles exist at specific positions on both sides of the bridge, they cannot be avoided.

An object of the present invention is to eliminate the above-mentioned drawbacks and provide a mobile scaffolding device for a bridge that can reliably avoid obstacles with a simple configuration.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a pair of running parts that are provided on the left and right sides of a bridge and are movable on the bridge, and a support part that is provided outward from these running parts in the radial direction of the bridge. In a mobile scaffolding device for a bridge, the mobile scaffolding device for a bridge is provided with a scaffold hanging part hanging downward from the outer end of these supporting parts, and a movable scaffold provided at the lower end of the scaffold hanging part. The traveling part and the scaffold suspension part are connected to each other, and the bridge is composed of at least three beams arranged at predetermined intervals, and a movable connection that allows each of the beams to move independently in the width direction of the bridge. Features.

Here, the beams may be connected to the traveling section and the scaffold suspension section so as to be movable in the width direction of the bridge.

[Effect]

The mobile scaffolding device for bridges of the present invention is moved to a necessary location on the bridge by the traveling part, and when there is an obstacle on the bridge, the beam in front of the obstacle is moved in the width direction of the bridge by moving connection. By passing the obstacle, returning the beam to its original position after completing the passage, and repeating this process for at least two other beams, it is possible to avoid the obstacle on the bridge and pass.

〔Example〕

Hereinafter, the present invention will be explained based on illustrated embodiments.

Figures 1 to 6 are for explaining the configuration of an embodiment of the present invention. Figure 1 is a configuration diagram showing an embodiment of the mobile scaffolding device for bridges of the present invention, and Figure 2 is the same. A plan view of the embodiment, Fig. 31 is a view taken along the line A-A in Fig. 2, Fig. 4 is an enlarged view of the main part of Fig. 3, Fig. 5 is a detailed view of the support section, and Fig. 6 is the same. FIG. 3 is a configuration diagram of a connected footboard portion used in an example.

In these figures, the mobile bridge scaffolding device l is provided on both the left and right sides of the bridge 2, and includes a pair of running parts 3, 3 that can move on the bridge 2, and these running parts 3. 3, a supporting part 4.4 provided outward in the width direction of the bridge 2, a scaffold hanging part 5.5 suspended downward from the outer end of these supporting parts 4.4, and Lower end 6 of lower part 5.5,
The support part 44 is connected to at least three beams 4° arranged at predetermined intervals to connect the running part 3.3 and the scaffold hanging part 5.5. a, 40
b, 40c, and each of the beams 40a, 40b.

40c is composed of movable connections 41a, 41b, and 41c that are movable independently in the width direction of the bridge 2.

As shown in FIG. 3, the traveling section 3 has a bogie frame 9 having wheels 8.8 made of rubber or the like and provided at regular intervals in the horizontal axis direction. It has a drive device 10 for driving wheels 8 provided at the end.

This wheel 8 has a chain 13 attached to a sprocket 12 fixed to the axle and a sprocket 11 of the drive device 10.
is rotated by the drive device 10.

The support part 4 includes beams 40a, 40b, 40c, and these beams 4.
It has movable connections 41a, 41b, and 41c that can move 0a, 40b, and 40c independently. This movable connection 41 is constructed as shown in FIG. That is, a manual winch 42 is provided above the scaffold suspension part 5, and a chain 44 is wound around the output blocket 43 of this winch 42.
The end of 4 is connected to the beam 40 via auxiliary subblocks 45 and 46.
are fixed to fixed pieces 47 and 48, respectively. The beam 40 is movably fixed to the scaffold hanging section 5 and detachably engaged with the upper U of the running section 3.

As shown in FIG. 1, the scaffold hanging section 5 has a movable scaffold 7 provided at the lower part of the support section 5.

The movable scaffold 7 is formed into an elongated rectangular shape with angles or channels, and a striped steel plate or the like is laid on the upper surface thereof. The movable scaffold 7 has a structure that allows it to expand and contract in the longitudinal direction, for example, when there is an obstacle on the side of the bridge 2.

In addition, the reference numeral 20 is a handrail, 21a is a staircase for getting onto the device from the bridge 2, 21b is a staircase for getting on the movable scaffold 7 from the top of the device, and 22 is a control panel for controlling the drive device 10 and the like.

Further, in FIG. 6, reference numeral 55 denotes a connecting footboard, and one end of the connecting footboard 55 is rotatably fixed to the communication passage 57 of the running section 3 via a fulcrum 56, and the connecting footboard 55 is The other end is placed 'R' on the passage 58 of the support portion 5, so that the connecting step plate 55 can be flipped up as shown by the two-dot chain line in the figure, if necessary.

Next, the operation of the above-described embodiment will be explained below.

Operation regarding moving scaffolding> First, drive the drive device 10 of the traveling section 3 to move the wheels 8.8.
The movable scaffolding device 1 for bridges is moved to the required location by rotating the movable scaffolding device 1 for bridges, and the movable scaffolding device 7 relative to the bridge 2 is moved up and down by the lifting shaft (not shown) provided in the traveling section 3.3.
, 7... adjust and fix the heights.

Then, drive the other opposing left and right moving scaffolds 7.7 with a winch or the like (not shown) to move them to the center of the bridge 2,
After the movable scaffolds 7, 7 are fitted together, they are connected by, for example, tightening bolts on both flanges.

In addition, the mobile scaffolding device 1 for bridges is the bridge 11j50 of the bridge 2.
When moving between the bridges in the direction of the bridge axis, the left and right moving scaffolds 7
．． 7... can be moved in a connected state, but the bridge I! can be moved in the moving direction (indicated by arrow X). 1I50, after releasing the connection of the pair of left and right movable scaffolds 7.7 immediately before contacting the bridge 1150, move the bridge movable scaffolding device 1 to avoid it, and after avoiding it, move it again to a certain degree. Fit the scaffold 7.7.

Since this is done, the bridge mobile scaffolding device 1 can be moved without hitting the bridge piers 50.

<Avoidance operation of lighting lights etc. (obstacles)> Next, a case where the bridge mobile scaffolding device 1 avoids the lighting lights 51 provided on the side of the bridge 2 will be described.

As shown in FIGS. 2 and 4, normally, three beams 40a and 40 are provided as the support section 4 between the running section 3 and the scaffold suspension section 5.
b, 40c are provided.

As shown in FIG. 9 (1), when the bridge mobile scaffolding device 1 comes to the illumination light 51 part, in order to avoid this, the bridge on the upstream side in the moving direction is 40c is moved outward in the width direction of the bridge 2 by driving the winch 42c, and the beam 40c is moved to the maximum position. And beam 4
After the movement of 0c to the maximum position is completed, as shown in FIG. 9 (2), the mobile bridge scaffolding device 1 is moved in the movement direction by -pitch, and the illumination light 51 passes through the beam 40c (-pitch). to be in the state. In this way, when the bridge mobile scaffold device 1 has been moved by -bi-tch, the bridge mobile scaffolding device 1 is stopped, the winch 42c is driven again, the beam 40C is returned to its original position, and the traveling part 3 and the scaffold suspension part 5 are moved. Make it connected.

Next, the beam 40b that is just in front of the certification light 51 is
2b is moved to the outside in the width direction of the bridge 2, and the beam 40
Move b to the maximum position. After the beam 40b has moved to the maximum position, the bridge mobile scaffolding device l is moved in the movement direction by a distance of -pixel as shown in FIG. pitch) to be in a passing state. In this way, when the mobile scaffolding device 1 for bridges has reached the state of movement by -pitch, the winch 42b is driven again to return the beam 40b to its original position, and the traveling part 3
and the scaffold hanging part 5 are brought into a connected state.

Furthermore, the winch 42a is driven to move the beam 40a on the downstream side in the movement direction to the outside in the width direction of the bridge 20, and the beam 40a is moved to the maximum position. After the beam 40a has moved to the maximum position, the bridge mobile scaffolding W1 is moved by one pitch in the moving direction as shown in FIG. minute) to be in a passing state.

When the bridge mobile scaffolding device 1 has been moved by -bit in this way, the bridge mobile scaffolding device 1 is stopped, the winch 42a is driven again, the beam 40a is returned to its original position, and the traveling part 3 and the scaffold suspension part 5 are connected to each other. do.

Finally, as shown in FIG. 9 (5) and FIG.
5 parts should be in a passing state. When the illuminating light 51 passes through the connecting footboard 55, by returning the connecting footboard 55 to its original position, the illuminating light 51 can be avoided as shown in FIG. 9 (6) (the two-dot M line in FIG. 10). Become.

In this way, the mobile scaffolding device l for bridges of the present invention has illumination lights 5
1 can be avoided.

In addition, in the above embodiment, the movable connections 41a, 41b, 41
Although the winches c are constituted by manual winches 42a, 42b, and 42C, they may be driven by a hydraulic motor, an electric motor, an internal combustion engine, or the like. Furthermore, in the above embodiment, the beam 4
Although 0 is composed of three wires, it may be four or more. In this embodiment, even if one beam 40 is moved to the retracted state as described above, the traveling part 3 and the scaffold hanging part 5 are always connected by at least two other beams 40. So,
Safety can be ensured.

〔Effect of the invention〕

As explained above, the mobile scaffolding device for bridges according to the present invention is designed to avoid obstacles on the bridge from among at least three beams, so that obstacles can be easily removed. It is possible to avoid obstacles when traveling, and since the vehicle avoids obstacles in the way of incoming power, excessive loads are not applied to other beams.

[Brief explanation of drawings]

The first is a front view showing an embodiment of the mobile scaffolding device for bridges of the present invention, FIG. 2 is a plan view of the same embodiment, FIG. 3 is a side view of the running part of the same embodiment, and FIG. A diagram showing the main parts of the traveling part and the support part, FIG. 5 is a diagram showing the main part of the support part of the same embodiment,
FIG. 6 is a configuration diagram of the connecting footboard section, FIGS. 7 and 8 are diagrams for explaining the operation of the support section of the same embodiment, and FIG. 9 (
1) to (6) are diagrams for explaining the operation of the same embodiment, and FIG. 10 is a diagram for explaining the movable state of the connecting footboard. 1... Mobile scaffolding device for bridges, 2... Bridges, 3...
・Traveling part, 4... Support part, 5... Scaffold hanging part, 7.
...Moving scaffold, 8...Wheels, 9...Dolly frame, 40a
, 40b, 40c...beam, 41a, 41b, 4Lc-
...Movable connection, 42a, 42b, 42cm...Winch, 44-...Chain, 51...Lighting light (Ill book), Patent applicant Mitsui Miike Seisakusho Co., Ltd. Agent Patent attorney Kudai Sogabe Zukankyo Figure 1 Figure A Figure ○ Figure

Claims (2)

[Claims] (1) A pair of running parts provided on the left and right sides of the bridge and movable on the bridge, supporting parts provided outward in the width direction of the bridge from these running parts, and outer ends of these supporting parts. In the mobile scaffolding device for a bridge, comprising a scaffold hanging part hanging downward from the scaffold suspension part, and a movable scaffold provided at the lower end of the scaffold suspension part, each of the supporting parts is connected to the traveling part and the scaffold suspension part. A movable type for a bridge, comprising: at least three beams connected to each other and arranged at predetermined intervals; and a movable connection that allows each of the beams to move independently in the width direction of the bridge. Scaffolding equipment. (2) The movable scaffolding device for a bridge according to claim 1, wherein each of the beams is connected to the running section and the scaffold suspension section so as to be movable in the width direction of the bridge.