JPH0347384Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a cable laying device used to lay cables such as control cables and instrumentation cables at predetermined installation locations in various industrial plants, power generation plants, etc. .

[Conventional technology]

FIG. 4 is a perspective view of a part of a conventional cable laying device equipped with a cable laying guide device of the type described in, for example, Japanese Utility Model Application Publication No. 57-170620, and FIG. 5 is a partial perspective view of the cable laying device of FIG. 4. An enlarged front view of the cable laying guide device used in Figure 5.
FIG. 3 is a right side view of the figure. In the figure 1A, 1B, 1
C is a tray for accommodating cables, for example, a power cable is laid in the upper tray 1A, an instrumentation cable is laid in the middle tray 1B, and a control cable is laid in the lower tray 1C. 2 are pillars supporting the trays 1A to 1C; 3A, 3;
B and 3C are beams, respectively, and 4 is a cable laying guide device suspended between the beam 3A of the upper tray 1A and the beam 3B of the middle tray 1B. This guide device is the fifth
As shown in FIG. 6, a frame 401,
A pair of side guide rollers 40 are rotatably provided substantially vertically inwardly on both sides of the frame.
2,403, it has a bottom guide roller 404 rotatably provided above the bottom in a substantially horizontal direction and in the width direction of the frame 401, and an upper guide roller 405 rotatably provided below the top, and should be laid. The cable and the traction wire that pulls the cable (the cable is connected to the traction wire by a suitable coupling device, not shown) are supported on a bottom guide roller 404, and the displacement of the traction wire and cable in the frame width direction is It is regulated by side guide rollers 402 and 403. frame 4
01 is naturally open at the front and rear when viewed in the pulling direction of the pulling wire. A bearing 406 is pivotally attached to the upper end of one side guide roller 403 to the frame 401 with a pin 407.
The lower end of the shaft 408 of No. 3 is inserted into a notch 409 formed in the frame 401, and the lower end of the shaft 408 is inserted into the notch 409 formed in the frame 401.
10, it is detachably fixed to the frame 401. Thus, the side guide rollers 403 will move around the pin 407 when the nut 410 is loosened or removed.
It can be pivoted to the position shown by the two-dot chain line in FIG. 6 about the center. Furthermore, the frame 401 is provided with an opening 411 for allowing the cable to drop onto the tray 1B or 1C when the side guide rollers 403 are pivoted in this manner. 412 is a mounting portion for fixing the guide device 4 to the beams 3A and 3B; 413 is a bearing at the upper end of the side guide roller 402; 414 is a shaft of the side guide roller 402;
415 is the axis of the bottom guide roller 404, and 416 is the axis of the top guide roller 405.

To lay a cable using this cable laying guide device 4, a traction wire is inserted into each guide device 4, the cable is connected to the traction wire by a coupling device, and the traction wire is connected to a suitable power source such as a winch. The cable is pulled onto the bottom guide roller 404 by pulling by a source (not shown). When the cable is pulled to a predetermined position, it is removed from the pulling wire, the side guide rollers 403 are tilted to the position indicated by the two-dot chain line in FIG. 6, and the cable is lowered through the opening 411 into the trays 1B and 1C.

[The problem that the idea attempts to solve]

However, in the above-mentioned conventional cable laying device, since the traction wire and the cable run together on the bottom roller 404, there is a problem that the cable and the traction wire become entangled with each other, and it takes a lot of time to untangle the cable. Ta.

The present invention has been devised to solve the problems of the conventional devices, and it is an object of the present invention to provide a cable laying device that prevents cables and traction wires from becoming entangled with each other.

[Means to solve the problem]

The cable installation devices of the present invention are arranged such that they can rotate about a substantially vertical axis extending below the top of the frame at positions offset in the width direction of the frame, and are spaced apart from each other to allow the coupling devices to pass through. A pair of pulleys are disposed side by side in the frame above the bottom guide roller with outer circumferential grooves facing each other, and the traction wire is supported and guided through between the mutually opposed outer circumferential grooves of the pulley, while the cable is passed through the coupling device. and is suspended from the traction wire and supported on the bottom guide roller.

[Effect]

In the cable laying device of the present invention, the traction wire is supported and guided between the outer circumferential grooves of a pair of pulleys, while the cable is suspended from the traction wire via the coupling device and supported on the bottom guide roller, so that the traction The wires and cables are supported and guided along separate paths, so that the pulling wires and cables do not become entangled with each other during the installation operation. [Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 3. First, the configuration of a coupling device suitable for releasably coupling one end of a cable to a traction wire in the present invention will be explained. will be explained with reference to FIG. In FIG. 3, 5 is a traction wire, 6 is a cable, and 7 is the entire coupling device. This coupling device 7 is fixed to the traction wire 5 by a coupling fitting 702 fitted to the traction wire 5 so as to be rotatable in the direction of an arrow 701 about the traction wire 5, and a screw 703, and the coupling fitting 702 pulls the traction wire 5 over the traction wire 5. A stopper 704 that prevents the cable from moving backward when viewed in the direction, a hook 705, a branch wire 706 secured to this, and a mesh-like mesh that is tightened and held against the cable 6 when it is placed over one end of the cable 6 and pulled. Attachment 707, the branch wire 7
06 and a fixture 707, and a hook locking portion 709 provided on the connecting fitting 702 and hooking the hook 705.

Therefore, the worker attaches the fitting 707, untwisting 708, branch wire 706, and hook 705 to one end of the cable 6 as shown in the figure, and the connecting fitting 702 is attached to the hook locking part 709 when passing in front of the operator. This means hooking the hook 705.

Now, referring to Figures 1 and 2, the first
The figure is a front view of a cable laying guide device according to an embodiment of the present invention, and FIG. 2 is a bottom view of FIG. 1.
The same parts as those of the conventional one are given the same reference numerals, and the explanation thereof will be omitted. Incidentally, in FIG. 2, the cables are not shown for the sake of simplification of the drawing.

In the figure, 417A and 417B are frame 4
01 (similar to the conventional one, the front and rear sides are open when viewed in the pulling direction 418 of the pulling wire 5) at a position shifted in the width direction of the frame 401, with substantially perpendicular shafts 423, 419 extending downward from the top. These pulleys 417A and 417B are arranged in parallel so as to be able to rotate around the center, and these pulleys 417A and 417B are spaced apart from each other to allow the coupling device 7 to pass through, and at approximately the same height, are connected to outer circumferential grooves 426A and 426B.
are arranged above the bottom guide roller 404 so as to face each other. Shaft 419 of one pulley 417B
extends vertically through a slit 421 formed in a shelf 420 of the frame 401, and is held by a nut 422 so as to be movable along said slit 421. other pulley 4
17A, the shaft 423 is connected to the shelf 4 by a nut 424.
20 in the vertical direction. The slit 421 is formed along a line connecting the shafts 419 and 423, and the shafts 419 and 423 are drawn together by a spring 425, and in this drawn state, as clearly shown in FIG. As can be seen, the slit 421 is provided so that the pulleys 417A and 417B move forward and backward when viewed in the pulling direction of the pulling wire 5 of the frame 401, and so that they partially overlap when viewed in the width direction. The traction wire 5 and the connecting fitting 702 are supported between the outer circumferential grooves 426A and 426B of the pulleys 417A and 417B, and the cable 6 to be laid is suspended from the traction wire 5 via the connecting device 7 and placed on the bottom guide roller 404. Supported. However, the traction wire 5 and cable 6
The traction wire 5 and the cable 6 will be supported and guided along separate paths during the laying operation.
They do not become entangled with each other. Furthermore, when using the coupling device 7 having the above-described configuration, the coupling fitting 702 can rotate on the traction wire 5, so even if the traction wire 5 rotates for some reason, the cable 6 is always attached to the traction wire 5. Since the cable 6 is held hanging down from the cable 6, the cable 6 does not get wrapped around the traction wire 5. During the installation work, the stopper 70
4 holds the connecting fitting 702 so that it does not move backward when looking over the pulling wire 5 in the pulling direction;
To ensure that the cable 6 is pulled securely. Note that the connecting fitting 702 resists the force of the spring 425 and connects to the pulley 4.
17A, 417B, but the pulley wire 5 does not fall because the pulleys 417A, 417B partially wrap in the width direction of the frame 401 as described above.
It is securely held and guided between 7B.

Note that in this embodiment, the spring 425 connects the pulley 417.
B is elastically drawn toward the pulley 417A, but if the connecting fitting 702 can meander between the pulleys 417A and 417B, the shaft 419 may also be fixed to the shelf 420. Also, pulleys 417A, 41
7B are arranged so as to be one behind the other when viewed in the traction direction 418, but they may be arranged side by side in the width direction of the frame 401. In this case, pulley 417A,
417B cannot be partially wrapped in the width direction of the frame 401, but the outer circumferential grooves 426A, 426
By appropriately selecting the size of B and the gap between the flanges 427A and 427B, the connecting device 7
The traction wire 5 is placed in the grooves 426A, 426B while allowing the pulleys 417A, 417B to pass between the pulleys 417A, 417B.
It is possible to keep it between. In addition, in this embodiment, the traction wire 5 can always be guided through the center part in the width direction of the frame 401, and the traction wire 5 and the side guide rollers 402, 4 can be guided at all times.
Unnecessary contact with 03 can be avoided.

In the illustrated embodiment, the side guide roller 403 is pivotally attached to the frame 401 by a bearing 406 and a pin 407, similar to the conventional one shown in FIGS. 5 and 6. However, the other side guide roller 402 or bottom guide roller 404 may be pivotally mounted in this manner, and in that case, the opening 411 may be located at a position opposite to the pivotally mounted guide roller. good.

[Effect of idea]

As described above, the cable laying device of the present invention supports and guides the traction wire and cable along separate routes, thereby avoiding entanglement between the traction wire and cable during the installation work. Make the most of your efforts.

[Brief explanation of drawings]

FIG. 1 is a front view of an embodiment of the invention; FIG. 2 is a bottom view of FIG. 1; FIG. 3 is an enlarged side view of a cable to traction wire coupling device suitable for use with the invention; Fig. 4 is a perspective view of a portion of a conventional cable laying device, Fig. 5 is a front view of a cable laying guide device used in the cable laying device of Fig. 4, and Fig. 6 is a right side view of Fig. 5. It is. In the figure, 4 is a cable laying guide device, 40
1 is a frame, 402 and 403 are side guide rollers, 404 is a bottom guide roller, 411
is an opening, 417A and 417B are pulleys, and 4
18 is the traction direction, 419 and 423 are respective axes,
426A and 426B are respective outer peripheral grooves, 5 is a traction wire, 6 is a cable, 7 is a coupling device, 702
704 is a stopper, 705 is a hook, and 709 is a hook locking portion. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims for Utility Model Registration] (1) A frame, a pair of side guide rollers rotatably provided substantially vertically in both sides of the frame, and a pair of side guide rollers rotatably provided substantially horizontally above the bottom of the frame. and a bottom guide roller provided in the width direction of the frame, one end of at least one of the side guide rollers and the bottom guide roller is pivotally connected to the frame, and the other end is detachably attached to the frame. a cable laying guide device comprising: a cable laying guide device; the cable is coupled to a traction wire by a coupling device and the traction wire is pulled through the cable laying guide device by a power source to move the cable onto the bottom guide roller; The frame is open at the front and back when viewed in the pulling direction of the pulling wire, and faces the pivoted guide roller so that the cable pulled on the bottom guide roller is pulled into the frame. In a cable laying device having an opening for exit, the connecting devices are passed through each other so as to be rotatable about a substantially vertical axis extending below the top of the frame at positions offset in the width direction of the frame. A pair of pulleys are installed in the frame above the bottom guide roller with a distance of 100 mm and outer circumferential grooves facing each other, and the traction wire is supported and guided by passing between the outer circumferential grooves of the pulleys facing each other. , wherein the cable is suspended from the pulling wire via the connecting device and supported on the bottom guide roller. (2) The cable laying device according to claim 1, wherein a pair of pulleys are arranged so as to be arranged in front and behind each other when viewed in the traction direction of the traction wire, and partially overlapped in the width direction of the frame. (3) The coupling device includes a coupling fitting that has a hook locking portion and is rotatably fitted to the traction wire, and a coupling fitting that is fixed to the traction wire, and the coupling fitting is arranged on the traction wire when viewed in the traction direction. A stopper for preventing the cable from moving backward; and a hook attached to the tip of the cable and removably locked to the hook locking part of the connecting fitting. Cable laying equipment as described in section.