JPH0425413Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is used for cable laying in tunnels, which is used for shelving work of shelving cables on the shelf frame of cable shelves when laying cables in tunnels. Regarding a trolley (hereinafter abbreviated as a laying trolley).

(Conventional technology) Conventionally, in order to lay a cable inside a tunnel, the cable was extended onto the floor of the tunnel, and then workers lined up horizontally successively lifted the cable high and installed it along the tunnel. This was accomplished by shelving and storing cables on a predetermined shelf frame of a cable shelf.

(Problem that the invention aims to solve) However, this shelving work tends to require an awkward posture, which can easily injure the lower back or hands, and if the cables being laid are heavy or hard, There were some problems, such as difficulties in itself. Furthermore, when shelving on a high shelf 2 to 3 meters above the floor, the work must be done on a scaffolding platform, which is not only dangerous, but also installing scaffolding platforms along the entire line requires a great deal of labor, such as transporting materials into the tunnel. In need of materials,
There were problems such as poor work efficiency.

The present invention was made in order to solve the above-mentioned conventional problems, and aims to provide a trolley for attaching cables in a tunnel that can easily and safely carry out shelving of cables in a tunnel. It is something.

(Means for Solving the Problems) In order to solve the above-mentioned technical problems, the present invention comprises a drive truck equipped with a drive mechanism and a plurality of driven trucks coupled to the drive truck and driven by the drive truck. A scaffolding platform is provided on the top surface, and a scaffolding platform is provided on the top of the plurality of driven carts, which is stepwise higher than the scaffolding platform of the driving cart in the order in which it is connected to the driving cart, and each scaffolding platform is A connecting rod is erected at the center of the rear of the platform, and a connecting column is provided at the lower center of the front of the scaffolding platform of each driven truck, and is detachably fitted onto the connecting rod to support the scaffolding platform. Each scaffolding platform is installed so that it can be connected in a stair-like manner, and a cable guide is attached to the front of each scaffolding platform to sequentially guide the cable extended on the floor in the tunnel onto each scaffolding platform. It is located on the trolley.

(Function) One end of the cable extended above the floor in the tunnel is guided in sequence by cable guides provided at the front of each of the driving truck and the driven truck, and is lifted up to a predetermined height of the shelf frame. As the installation cart advances, the cables are successively lifted to a predetermined height of the shelf frame.

(Example) Next, an example of this invention will be described based on the drawings.

FIG. 1 schematically shows how cables 3 are shelved in a tunnel 2 using a cable installation trolley 1 in this embodiment. A cable shelf 5 is provided with a plurality of shelf frames 4 on which cables 3 are placed. Further, a drain groove 6 for drainage is formed along the tunnel 2 on the floor surface. A large number of floor rollers 7 having roller bodies on their upper surfaces are arranged at appropriate intervals on this floor surface, and the cable 3 is placed on the floor rollers 7 prior to shelving work. In such a tunnel 2, a laying truck 1 is movably arranged, which is connected to a driving truck 8, a second driven truck 9, and a third driven truck 10, straddling the floor rollers 7.

The frame 11 of the driving cart 8 is formed into a substantially rectangular shape, and a scaffolding platform 21 is provided at a height Ha above the floor surface on the top of the leg pieces 14 erected at each of the four corners, on which the worker works. It is considered possible. In addition, the wheels 12 provided at the lower end of each leg piece 14 are
Among these wheels 12, the rear wheel 12
A is a driving wheel. Further, a frame shelf 16 is provided in the middle of the frame 11 in parallel with the scaffolding platform 21. On this frame shelf 16 is a battery 17 for driving the drive cart 8, and a motor 1 with a speed reduction mechanism that uses the battery 17 as a drive source.
8 are arranged and firmly fixed to the frame 11. Further, a drive chain 20 that transmits the driving force of the motor 18 to the rear wheels 12a connects both the motor 18 and the sprocket wheels 19 of the wheels 13.
A and 19b, the drive trolley 8 can be moved forward, stopped, etc. by operating a controller (not shown).

Further, a mounting plate 23 is provided at the front of the scaffolding platform 21, and a cable guide 22 for guiding the cable 3 is attached to this mounting plate 23. This mounting plate 23 is made of a thick steel plate with a width approximately equal to the width of the frame 11, and has several mounting holes 23a formed at equal intervals for mounting the cable guide 22, and is perpendicular to the direction in which the cable 3 is guided. It is tilted slightly forward. A cable guide 22 is detachably attached to the center of the mounting plate 23 with bolts 27. This cable guide 22 includes a bracket 25 for attaching it to a mounting plate 23, and a roller 24 in which a cylindrical pipe material 24b is rotatably fitted on each side of an annular shaft 24a formed in an octagonal loop shape. It is formed so that the cable 3 can be inserted therethrough and guided. (See Figure 7).

Further, a guide arm 28 is attached to the lower part of the front leg piece 14 of the frame 11 and projects laterally, and fits into the drainage groove 6 formed on the floor of the tunnel 2.
A drive truck 8 is able to run using the drain groove 6 as a guide. Further, a pipe-shaped connecting rod 29 is provided upright at the rear center of the scaffolding platform 21, and a second driven truck 9 is connected thereto.

The frame 30 of the second driven truck 9 is provided with a substantially rectangular scaffolding platform 34 whose left and right width is approximately the same as the frame 11 of the driving truck 8.
Leg pieces 32 that are longer than the leg pieces 14 of the drive truck 8 are provided on the rear left and right sides of the drive truck 4. A wheel 33 is rotatably provided at the lower end of the leg piece 32 to support the scaffolding platform 3.
4 is formed at a height above the floor Hb. In addition, the connecting rod 29 of the driving truck 8 is fitted from above at the center of the front part of the scaffolding platform 34 to connect the second driven truck 9 to the driving truck 8.
A pipe-shaped connecting support 31 is provided which connects to. This connecting support 31 has a length from the scaffolding platform 34.
The connecting support 31 is provided so as to hang down by an amount La, and is fitted into the connecting rod 29 so that the tip of the connecting support 31 is supported on the scaffolding platform 21. That is, the driven truck 9 is supported by the two leg pieces 32 provided at the rear of the frame 30 and the connecting column 31, and the scaffolding platform 34 is supported by the driving truck 8.
The height Hb is higher than the height Ha of the scaffolding platform 21 by La
The scaffolding platform 21 and the scaffolding platform 34 are arranged in a stair-like manner. In addition, in order to release the connection of the second driven truck 9 from the driving truck 8, the second driven truck 9
The connection rod 29 and the connection support 31 can be released by lifting the connection support 31 upward to disengage the connection rod 29 and the connection support 31. At this time as well, connect the tip of the connecting column 31 to the scaffold 21.
When placed in the upper front section, the scaffold 34 is kept approximately horizontal. Further, a reinforcing piece 36 is removably installed between the intermediate portion of the leg 32 and the other side of the scaffold 34 to reinforce and fix the leg 32 and the scaffold 34 at right angles. Further, at the tip of the scaffolding platform 34, a mounting plate 39 and a cable guide 22b, which are formed in the same manner as the mounting plate 23 and cable guide 22 of the driving cart 8, are provided.
is provided. That is, this mounting plate 39 is formed with several mounting holes 39b as in the case of the drive trolley 8, and the drive trolley 8 is inserted into the predetermined mounting holes 39b.
A cable guide 22b, which is the same as the cable guide 22 attached to the cable guide 22b, is attached by bolts 40 and can guide the cable 3. Note that a pipe-shaped connecting rod 41 is provided at the center of the rear part of the scaffolding platform 34 so as to face upward. This connecting rod 4
A third driven truck 10 is connected to the vehicle 1.

The scaffolding 34c of the third driven vehicle 10 is formed in a step-like manner with a height Hc higher than the height Hb of the scaffold platform 34.
It is said to have almost the same configuration. Therefore, explanations of the same parts will be omitted and only the differences will be explained. In addition, the same parts as the driven truck 9 of the second vehicle are indicated by the same reference numerals as those of the driven truck 9 of the second vehicle with the letter "c" added thereto in the drawings.

In the third driven vehicle 10, the cable guide 22c is an extension bracket 4 made of a thick steel plate.
3 and is attached so as to protrude upward. That is, the lower part of the extension bracket 43 is attached to the mounting plate 39c provided at the front part of the frame 30c by bolting, and the drive carriage 8 is attached to the upper part.
A cable guide 22c having the same configuration as the cable guide 22 shown in FIG.

Note that, as shown in FIG.
Disengage the connecting post 31 of the drive truck 8 from the connecting rod 29 of the driving cart 8, place it on the front part of the scaffolding platform 21, and
Similarly, the connecting rod 31 is connected to the third driven vehicle 10.
By placing c on the front part of the second scaffolding platform 34, the installation trolley 1 can be accommodated compactly, making it easy to transport it to the installation site.

Next, a case will be described in which the cable 3 is shelved on the shelf frame 4a provided at a slightly higher location than the scaffolding platform 34c of the third driven vehicle 10 using the installation trolley 1.

In FIG. 1, the floor surface within the tunnel 2 is formed to be substantially flat, and cable shelves 5 having a plurality of shelf frames 4 on which cables 3 are placed are erected along the left and right side walls. Further, a drain groove 6 for drainage is formed along the tunnel 2 on the floor surface. A large number of floor rollers 7 are arranged on the floor of the tunnel 2 at predetermined intervals, and a cable 3 is extended and placed on the floor rollers 7.
Into such a tunnel 2, a driving truck 8, a second driven truck 9, and a third driven truck 10 are separated and carried into the tunnel 2 through a manhole (not shown). In the tunnel 2, the connecting column 31 of the second driven truck 9 is fitted to the connecting rod 29 of the driving truck 8 in the direction in which the cable 3 is laid, and the connecting rod 41 of the second driven truck 9 is fitted to the connecting rod 31 of the third vehicle. The second driven truck 9 and the third driven truck 10 are connected to the driving truck 8 in tandem by fitting the connection struts 31c of the driven truck 10. Next, in this embodiment, the height of the shelf frame 4a is a little higher than the scaffolding platform 34c, so
Select the most appropriate mounting holes 39d of the driven carts 10 for both eyes and attach the extension bracket 43 to the mounting plate 39c, and also attach the cable guide 22c to the upper part of the extension bracket 43 by tightening the bolts. It is set at almost the same height as the frame 4a, and is placed at the most appropriate height for shelving work. Subsequently, the tip of the guide arm 28 provided at the lower part of the drive truck 8 is inserted into the drain groove 6 formed in the floor surface. As a result, the guide arm 28 is guided by the drain groove 6, and the driving cart 8 is allowed to travel approximately in the center of the tunnel 2.

Next, one end of the cable 3 placed on the floor roller 7 is lifted up, and the driving truck 8 is slowly advanced to connect the driving truck 8, the second driven truck 9, and the third driven truck 10. cable guide 2
2, 22b, and 22c, and lift the cable 3 up to a predetermined shelf frame 4a.

Next, when the driving cart 8 is driven and moved forward, as the laying cart 1 moves forward, the cable 3 extended into the tunnel 2 is moved to each cable guide 22, 22b,
Guided by 22c, the shelf frame 4a rises one after another.
The cable 3 is lifted up to a horizontal height, and the lifted cable 3 is sequentially moved to a laying position on the shelf frame 4a and laid by a worker riding on the scaffolding platform 34c. At this time, in order to prevent the operator who operates the driving truck 8 from getting on the scaffolding platform 21 of the driving truck 8 or damaging the cable 3, the operator who operates the driving truck 8 should be placed on the scaffolding platform 34 of the second driven truck 9. Workers can also come on board and assist.

In this embodiment, a case has been described in which the cable 3 is installed on the shelf frame 4a at a higher position than the scaffolding platform 34a of the third driven vehicle 10. Mount the cable guide 22 directly without using the mounting plate 39.
When installing the cable 3 on a lower shelf frame 4, the cable 3 may be installed only by the driving truck 8 and the second driven truck 9 without connecting the third driven truck 10. You can also do it. In this case, depending on the height of the shelf frame 4, the second driven truck 9
The cable guide 22a to be attached to the mounting plate 2 directly
3 or use an extension bracket as appropriate.

In this embodiment, a drive bogie 8 equipped with a drive mechanism, a second driven bogie 9 and a third driven bogie 10 connected to the drive bogie 8 are connected by a connecting post 31 to a connecting rod 29. A connecting column 31c is fitted onto the rod 41 and connected to the rod 41. A scaffolding platform 21 is provided on the upper surface of the driving truck 8, and a scaffolding platform 21 of the driving truck 8 is provided on the upper surface of the driven truck 9, 10. Scaffolding platforms 35, 35c are provided higher than the scaffolding platforms 21, 35, and 35c, and the scaffolding platforms 21, 35, and 35c are formed in a step-like manner.
Cable guides 22, 22b, 22c are provided at the front of the tunnel 35c to sequentially guide the cable 3 extending on the floor in the tunnel 2 onto the respective scaffolds 21, 35, 35c.
Because of the attachment, the driving cart 8, the driven cart 9, and the driven cart 10 can be easily connected and separated, and the installation cart can be easily transported between the ground through the manhole and the inside of the tunnel 2. 1, and the lifting height of the cable guide 22c can be easily changed using an extension bracket according to the height of the shelf frame 4 to be installed.

In addition, in this embodiment, the footing platform 34 of the second driven vehicle 9 or the scaffolding platform 34c of the third driven vehicle 10 is set at a height Hb or Hc from the floor surface in the tunnel 2. Although the piece was 32c,
By using leg pieces 32 and leg pieces 32a as extensible leg pieces, it is also possible to make the second driven truck 9 and the third driven truck 10 compact.
In this case, it is convenient to transport between the ground and the tunnel 2 through a small-diameter manhole.

(Effects of the Invention) The present invention comprises a driving cart equipped with a drive mechanism and a plurality of driven carts connected to the driving cart and driven by the driving cart, and a scaffolding platform is provided on the upper surface of the driving cart. Scaffolding platforms are provided on the upper part of the plurality of driven carts in a stepwise manner higher than the scaffolding platform of the driving cart in the order in which they are connected to the driving cart, and a connecting rod is erected at the center of the rear of each scaffolding platform, Further, at the lower center of the front part of the scaffolding platform of each driven truck, a connecting column is provided which is removably fitted onto the connecting rod to support the scaffolding platform, so that each scaffolding platform can be connected in a stepped manner. The front part of the scaffold is equipped with a cable guide that sequentially guides the cables extended above the floor in the tunnel onto each scaffold, allowing the cables to be shelved to be guided to the side of the shelf frame and lifted up. This eliminates the need for workers to lift the cable, greatly reducing the difficulty of cable installation work. In addition, when laying the cable on a high shelf 2 to 3 meters above the floor, there is no need to install scaffolding platforms along the entire line, which saves a lot of labor and materials such as transporting materials into the tunnel, significantly improving work efficiency. be able to.

[Brief explanation of the drawing]

The attached drawings illustrate one embodiment of this invention, and the first
The figure is a schematic side view of the inside of the tunnel showing the outline of cable installation work, Figure 2 is a cross-sectional view of the same, Figure 3 is a side view of the drive cart, Figure 4 is a partially cutaway plan view of the same, and Figure 5 is a side view of the tunnel.
6 is a partially cutaway plan view of the second driven truck, FIG. 7 is a front view of the cable guide, and FIG. 8 is a side view of the installation truck in a stored state. 1...Claying trolley, 2...Cunnel, 3...Cable, 8...Driving trolley, 9, 10...Following trolley, 1
2... Wheels, 21, 34... Scaffolding platform, 22, 22
b...Cable guide.

Claims (1)

[Scope of utility model registration request] It consists of a drive truck equipped with a drive mechanism and a plurality of driven trucks that are connected to the drive truck and driven. A scaffolding platform is provided on the upper surface of the drive truck, and the Scaffolding platforms that are higher than the driving platform in order to be connected to the driving platform are provided in stages, and a connecting rod is erected at the center of the rear of each scaffolding platform, and a connecting rod is installed in front of the scaffolding platform of each driven platform. At the lower center of the section, there is provided a connecting column that is removably fitted onto the connecting rod to support the scaffolding platform, so that each scaffolding platform can be connected in a stair-like manner. A trolley for laying cables in a tunnel, which is equipped with a cable guide that sequentially guides the cable extended on the floor of the tunnel onto each scaffold platform.