JPH0521521Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a road inspection vehicle that lowers a work stage beyond the fence of an elevated road such as an expressway to inspect and repair the outside of the elevated road.

[Conventional technology]

Generally, on elevated roads, the outside of the road and the pillars are regularly inspected and repaired to ensure the safety of vehicles, but on expressways, etc., soundproof fences are installed to block out the noise generated by running vehicles. are often installed along the edge of the road, and when inspecting elevated sections, a drivable road inspection vehicle that can lower the work stage over a high soundproof fence is used. There is.

The work stage has a surrounding safety fence of a predetermined height, so that several workers can safely work at height.

[The problem that the idea aims to solve]

However, for the work at the above work stage,
In addition to visual inspections, repairs and painting are carried out using tools and simple equipment, and vehicles not only have to approach and stop close to the road edge, but also drive slowly along the road edge to increase efficiency. Sometimes I work while doing so.

Therefore, it is difficult to provide a dangerous area for falling objects below the work stage, and it is necessary to station personnel below the work stage to mark the dangerous area. In addition, because the work was done at heights, there were inconveniences such as dropping items needed for work and requiring time to retrieve them.

In view of the above circumstances, it is an object of the present invention to provide a road inspection vehicle equipped with a work stage that will not fall downward even if an object is dropped by a worker.

[Means to solve the problem]

In order to achieve the above object, in the road inspection vehicle of the present invention, the surface is in contact with the outer surface of the safety fence of the work stage, and the lower edge is rotatably attached to the outer periphery of the floor of the work stage with a hinge. At the same time, a fall prevention apron is provided that opens at a predetermined angle with respect to the safety fence with the hinge as the center. A fall prevention canvas or net is installed to cover the gap between the corners.

[Effect]

Since the present invention has the above-described structure, even if something is dropped from the work stage during work, it will be caught by the apron and canvas or net, and will not fall downward.

〔Example〕

Figures 1 to 6 show an embodiment of a road inspection vehicle according to the present invention. Figure 1 is a side view, Figure 2 is a plan view, and Figure 3 shows a work stage outside the elevated road. FIG. 3 is a front view showing a lowered state.

Reference numeral 1 in the figure indicates an inspection vehicle body having self-propelled tires 1a, and a hydraulic cylinder (not shown) provided inside approximately the center of the top surface of this inspection vehicle body 1.
A main post section 2 having a telescopic shape and a rectangular cross section that can be expanded and contracted in multiple stages by a known method using a conventional method is attached via a swing bearing 2a so as to be able to swing vertically and horizontally. A swing drive plate 2b is fixed to the lower part of the main post section 2. The swing drive plate 2b has a base portion which is connected to the inspection vehicle main body 1.
The rod tip of the hydraulic cylinder 3, which is horizontally rotatably attached to the hydraulic cylinder 3, is horizontally rotatably attached.
The main post section 2 is driven to pivot by the expansion and contraction of the hydraulic cylinder 3. The position where the rod tip of the hydraulic cylinder 3 is attached to the swing drive plate 2b can be changed, and by selecting that position, the swing position of the main post section 2 can be changed.

A base portion of a horizontal arm portion 4 that is perpendicular to the main post portion 2 is fixed to the upper end of the main post portion 2 . At the tip of this horizontal arm section 4,
Similar to the main post section 2, the base of the elevating post section 5, which has a square cross section and is expanded and contracted by a hydraulic cylinder (not shown) provided inside, is mounted so as to be horizontally rotatable via a swing bearing 5. It is being A swing drive plate 5b is attached to the base end of the lift post section 5, and the swing drive plate 5b includes:
The rod end of a hydraulic cylinder 6 whose base is horizontally rotatably attached to the horizontal arm 4 is horizontally rotatably attached, and can be rotated within a predetermined range by expansion and contraction of the hydraulic cylinder 6. There is. Rotating drive plate 5b at the rod tip of this hydraulic cylinder 6
As with the case of the main post section 2, the mounting position on the elevating post section 5 can also be changed.
The pivot position relative to the horizontal arm can be changed.

In addition, as shown in Figures 4 and 5, one side around the tip of the lifting post section 5 is connected by a hinge 8 to the widthwise central portion of the longitudinal end of the floor surface 7b of the work stage 7, which has an approximately rectangular planar shape and is surrounded by safety fences 7a..., and the tip section 5c of the lifting post section abuts against the floor surface 7b to keep the work stage horizontal.

A strain gauge 9 for detecting contact pressure is disposed between the floor surface 7b and the tip end 5c.

The work stage 7 has a locking member whose surface abuts the safety fence 7a, whose lower edge 10a is rotatably attached to the outer peripheral edge 7c of the work stage floor by a hinge 11, and whose upper part is detachable. 12, a plate-shaped apron 10 is provided which is secured to the upper part of the safety fence 7a.

When the apron 10 is opened around the hinge 11 by removing the locking tool 12, it is held at a predetermined angle with respect to the safety fence 7a by a chain 13 or the like. In this case, as shown in FIG. 6, since no work is performed on the side where the lifting post section 5 is attached, there is no need to attach an apron. A fall prevention canvas or net 10b is attached to the side edges of the aprons 10, 10 adjacent to each other at the corners of the floor surface 7b of the work stage to cover the gaps formed at the corners when these are opened. There is.

In addition, in the figure, 21 is an operation panel for operating the main post section, elevating post section, etc. from the work stage, 22 is an outrigger, 23 is a suspension lock that prevents the expansion and contraction of the body spring, 24 is a power generation unit, 25 is a hydraulic unit, 26 is a limit switch that prevents the horizontal arm from hitting the upper end of the fence, and 27 is a cable bearer.

Note that the apron 10 can be any plate-shaped material that can catch falling objects, such as a plastic board or a frame with canvas or net stretched over it.

Next, a method of using the road inspection vehicle (hereinafter referred to as inspection vehicle) configured as described above will be explained.

First, the inspection vehicle is driven and stopped close to a fence 32 of the elevated road 31 that is to be inspected, as shown in FIG. Suspension lock 23 to prevent expansion and contraction of the body springs after stopping
the outrigger 22 as necessary.
ground. However, when the inspection vehicle is driven slowly while working, the outriggers 22 may be moved a little away from the road surface to prevent the outriggers 22 from touching the ground and tilting significantly if the tire 1a becomes punctured.

Also, depending on the part to be inspected or repaired, the swing drive plate 2b at the rod tip of the hydraulic cylinders 3 and 6 may be
and 5b and fasten them, but this operation may be performed when the inspection vehicle departs.

Next, a worker boards the work stage 7. At this time, devices are installed as necessary, but if the load is overloaded, this will be detected as soon as the strain gauge is pressurized and an alarm will be issued.

After a worker boards the work stage, all operations on the work stage are performed using the operation panel 21 of the work stage.
It is carried out by.

First, the main post section 2 is extended, and when the work stage 7 becomes higher than the upper end of the fence 32, the main post section 2 is rotated to position the work stage 7 outside the fence 32. Next, the main post section 2 is shortened and the elevating post is extended,
Adjust the height of the work stage 7. In this case, even if the main post section 2 is shortened too much and the horizontal arm section 4 is about to come into contact with the upper end of the fence, the limit switch 26 is installed and will operate, stopping the shortening of the main post section 2. The horizontal arm portion 4 never hits the fence 32.

After adjusting the height of the work stage 7, the lifting post is turned to make the direction of the work stage 7 easier to work with, and the locking tool 12 is removed to open the apron 10. The apron 10 is held by a chain 13 and extends at a predetermined angle with respect to the safety fence 7a. At this time, the canvas or net 10b also expands, and the apron 10 and the canvas or net 10b surround the work stage 7. In this state, the worker works, and even if he drops something during work, he does not have to worry about it falling downward, and can work efficiently.

Further, the apron 10 does not necessarily include the chain 13.
It is not necessary to use the entire length of the chain to expand it, and the opening degree of the apron 10 may be narrowed by adjusting the length of the chain. Further, if the apron 10 becomes a hindrance to setting the work stage 7 to the desired position, it may be locked by the locking tool 12 described above. In this case, the canvas or net 10b will also be folded up, so great care must be taken to prevent objects from falling.

After the work is completed, the apron 10 is locked (this also folds the canvas or net 10b), the direction of the work stage 7 is set in a predetermined direction,
The elevating post section is shortened and the main post is extended to move the work stage over the fence and above the inspection vehicle, then set it on the vehicle as shown in Figure 1, and the worker gets off the work stage.

[Effect of idea]

As described above, the road inspection vehicle of the present invention is capable of efficiently inspecting and repairing the outside of elevated road sections where high fences are installed for soundproofing, etc. It has a work stage to which an apron and canvas or net are attached, so workers can not only work without worrying about dropping objects, but also can move the apron and canvas by simply locking the apron after work. Or, you can fold both the computer and the internet at the same time, making your work more efficient. It also has many advantages, such as being able to prevent accidents caused by falling objects.

[Brief explanation of the drawing]

1 to 6 show an embodiment of a road inspection vehicle according to the present invention, in which FIG. 1 is a side view, and FIG.
The figures are a view taken along the - line in Fig. 1, Fig. 3 is a front view showing the state during work, Fig. 4 is a schematic side view of the work stage, and Fig. 5 is a sectional view taken along the - line in Fig. 4. FIG. 6 is a schematic plan view showing the apron in an open state. 1...Inspection vehicle body, 1a...Tire, 2...Main post section, 2a...Swivel bearing, 2b...
...Swivel drive plate, 3...Hydraulic cylinder, 4...Horizontal arm part, 5...Elevating post part, 5a...Swivel bearing, 5b...Swivel drive plate, 5c...Tip part, 6...Hydraulic cylinder, 7...Work stage,
7a... Safety fence, 7b... Floor surface, 7c... Floor outer periphery, 8... Hinge, 9... Strain gauge, 10
...Apron, 10a...Lower edge, 10b...Canvas or net, 11...Hinge, 12...
...Locking tool, 13...Chain, 21...Operation panel, 2
2... Outrigger, 23... Suspension lock, 24... Power generation unit, 25... Hydraulic unit, 26... Limit switch, 27... Cable carrier, 31... Elevated road, 32... Fence.

Claims (1)

[Scope of utility model registration request] A road inspection vehicle lowers a work stage with a safety fence around it to the outside of the elevated road fence to inspect and repair the outer and lower surfaces of the elevated road. , the lower edge is rotatably attached to the outer periphery of the floor of the work stage by a hinge, and an apron to prevent falls is provided that opens at a predetermined angle with respect to the safety fence around the hinge. A road inspection vehicle characterized in that fall prevention canvases or nets are attached to the side edges of the aprons adjacent to each other at the floor corners of the stage to cover the gaps formed at the corners when the aprons are opened. .