JP3112369B2 - Stand for cable feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mount for installing a cable feeder used for laying a cable.

[0002]

2. Description of the Related Art When laying an optical cable or the like in an underground pipeline, a cable feeder is installed in a manhole, and an optical cable or the like is sent out by the cable feeder, thereby laying the optical cable or the like in the pipeline. . That is, FIG.
FIG. 2 is a plan view showing an installed state of the cable feeding device, where 1 is a manhole. The manhole 1 is provided between the pipelines 2, and a cable feeding device 3 is installed via a gantry 4. The cable feeder 3 feeds the cable 5 and lays it in the pipeline 2.

Since the conventional gantry 4 has a structure in which the cable feeding device 3 is simply positioned and installed at a fixed position, existing cables and their connection boxes are provided at the installation position of the device 3 in the manhole 1. If they do, they must be temporarily removed from the laying position,
There has been a problem that a great deal of time and labor is required for removing and re-laying existing cables and the like.

Further, since the installation space of the device 3 is very narrow inside the manhole 1, as shown in FIG. The connecting straight lines often do not match. For this reason, the gold wheels 6, 6 are separately installed and the cable 5
Has to be conveyed in a meandering manner, so that the work of installing and removing the wheels 6 and 6 is further required, and
There is a drawback that the installation resistance of the cable 5 increases, for example, by 10 to 20%.

On the other hand, in order to solve the above problems, a cable feeding device and a gantry shown in FIG. 7 have been proposed. That is, the cable feeding device 7 has a main body 8 including a motor and a driving unit, and endless belts 9 and 9 wound around pulleys on the main body 8, and holds the cable 5 between the endless belts 9 and 9. It has a configuration to send it out.
The main body 8 is provided with a pedestal 10 for fixing the vertical position and pedestals 11 and 12 for fixing the horizontal position. On the other hand, the pedestal 13 is provided with a mounting base 14 having an insertion holder 15 for inserting the pedestal.

In the cable feeder 7 having the above structure, when it is necessary to feed the cable 5 at a lower position corresponding to the pipe position, the mounting base 1 of the gantry 13 is required.
The pedestal 10 is inserted into the insertion holding parts 15, 15 with the device 7 upside down and fixed above the column with the 4 turned upside down. Similarly, when it is necessary to send out the cable 5 at the left and right positions in relation to the pipeline position, the endless belts 9 and 9 are used.
Is tilted sideways so that is up and down in the horizontal position.
1 or 12 is inserted into the insertion holding portions 15, 15.

[0007]

The cable feeding device 7 needs to be carried in by a worker from the ground into a manhole having a small installation space, and must be carried out to the ground after completion of the laying. And easy installation. However, when the three pedestals 10, 11, and 12 are provided on the main body 8 as described above, the size of the device 7 is increased and the weight is increased. In addition, when the cable feeding device 7 is installed upside down, the work must always be performed with the device 7 lifted, so that two or more operators are required and the work is difficult. is there. SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and provides a rack for a cable feeding device capable of preventing an increase in the size and weight of the cable feeding device and saving labor for installation work. The purpose is to:

[0008]

SUMMARY OF THE INVENTION The present invention relates to a frame for mounting and fixing a cable feeding device, comprising a mounting table on which the cable feeding device is mounted and fixed, and both ends of the mounting table. A table rotation support mechanism including a pair of support rods for supporting and rotating about a rotation axis along the cable sending direction; a slide bush fixed to a holding bar for holding the table rotation support mechanism; A moving bush, which is vertically movably fitted, a support for fixing the sliding bush at a desired height position, and a table positioning mechanism for positioning and fixing the mounting table at a predetermined rotation position; The position of the center of gravity of the rotating body including the apparatus and the mounting table may substantially coincide with the rotation axis.

[0009]

[Function] Since the mounting table for mounting and fixing the cable feeding device is rotatable, by rotating the mounting table after fixing the cable feeding device, the cable feeding device can be installed at each of the upper, lower, left and right positions. it can. This place
Center of gravity of rotating body including combined cable feeder and mounting table
The mounting table is almost aligned with the axis of rotation.
Movement of the center of gravity of the entire rotating part due to
Can be

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an enlarged view of a main part of a base for a cable feeding device according to the present invention, FIG. 2 is an explanatory view of a main part of the base, FIG.
Is a partial explanatory view of the gantry, and FIG. 4 is a front view showing the entire gantry. First, in FIG. 4, reference numeral 20 denotes a square bar-shaped mounting table for mounting and fixing the cable feeding device 16 (see FIG. 5). On the mounting table 20, a clamp portion 21 for fixing the device 16 and locking portions 22 and 23 for locking the device 16 are provided.

The mounting table 20 is rotatably supported by a table rotation support mechanism 24. The table rotation support mechanism 24 is configured as shown in FIG.
As shown in FIG. 4 and FIG.
And a pivot shaft 28 rotatably inserted into the upper part of the support bar 25. The pivot 28 is fixed to the support bar 25 by a fixing disk 27 in this inserted state. The distal end side of the pivot shaft 28 is rotatably inserted into another bush 29. This bush 29 is inserted and fixed at the center of the holding bar 30.
A tip-off prevention nut 41 is screwed onto the tip of the pivot shaft 28, thereby preventing the pivot shaft 28 from coming off the bush 29. The holding bar 30 is made of a hollow square member having a square cross section. As shown in FIG. 3, sliding bushes 31, 31 are inserted and fixed at both ends along the vertical direction. One sliding bush 31 of each holding bar 30 is fixed at a predetermined height position to a pair of columns 32 arranged at diagonal positions. That is, the height adjustment holes 32 a are provided at equal intervals in each of the columns 32, and the substantially U-shaped fixing members 33 are provided.
Into the predetermined height adjustment hole 32a,
The sliding bush 31 is positioned and fixed to the column 32 by locking the upper bent portion to the upper end surface of the holding bar 30. Therefore, the mounting table 20 rotates about the pivots 28.

By the way, as shown in FIG.
The distance h between the rotation axis L and the upper surface of the mounting table 20 is such that when the cable feeding device 16 is mounted and fixed on the mounting table 20, the position of the center of gravity of the entire rotating unit including the apparatus 16 and the mounting table 20 is the rotation axis. L is set to be substantially the same as L.

On the other hand, a support rod 2 supporting the mounting table 20
A fixing disk 34 is fixed to the upper outer side surface of 5.
As shown in FIGS. 1 and 2, the fixing disk 34 is fixed to the support rod 25 in a state of being coaxially fitted on the bush 27, and together with the support rod 25 (the mounting table 20), the pivot shaft 28.
Rotate around. As shown in FIG. 2, positioning holes 35 a to 35 d are formed in the fixing disk 34 at 90 ° intervals in vertical and horizontal positions. A bracket 36 is provided upright at the center of the upper surface of the holding bar 30, as shown in FIG. The screw portion of the positioning plunger 37 is screwed into the bracket 36, and the small-diameter insertion portion 37a at the tip of the plunger 37 is inserted into a positioning hole 35a (see FIG. 2) of the fixing disk 34 in the illustrated example. Therefore, since the fixing disk 34 is fixedly positioned by the plunger 37, the mounting table 20 is positioned and held at a lower position shown in the figure. Plunger 3
A fixing nut 38 is screwed into the threaded portion 7, and the fixing nut 38 is in contact with the plate surface of the bracket 36. This prevents the plunger 37 from rotating, so that the bracket 3
6 can be prevented. The fixing disk 34, the plunger 37, and the like constitute a table positioning mechanism of the present invention. Height support rods 39 are slidably provided on the support rods 25 supporting the mounting table 20. The height indicating rods 39 are projecting positions as shown in the figure, and the ends thereof indicate the passage position S of the cable. Based on this passage position S, the height position of the mounting table 20 is set as described below. .

As shown in FIG. 4, the above-mentioned pair of columns 32, 32 are at diagonal (opposite) positions on the support bases 42, 42, which are fixed to both ends of the fixed base 40 in an H-shape orthogonally. It is erected. Height adjustment handles 43, 43 are attached to both ends of each support base 42, respectively, and the height of the mounting table 20 is finely adjusted by the height adjustment handles 43, 43.

In the gantry of the present invention having the above configuration, the cable feeding device 16 is, as shown in FIG.
The motor unit 17 is locked on the locking units 22 and 23 of the mounting table 20, and the drive transmission unit 18 is clamped by the clamping unit 21.
Fixed on top. When the device 16 is used in the normal mounted state (the state shown in FIG. 5), the plunger 3 is inserted into the positioning hole 35a of the fixing disk 34 as shown in FIG.
7 is inserted. Thus, the mounting table 20 is positioned and held at the lower position shown in FIG. 5, so that the cable 5 can be sent out and laid by the endless belts 19, 19 (only one is shown) positioned above.

On the other hand, when it is necessary to feed the cable 5 at the left and right positions, the mounting table 20 is rotated by 90 degrees in the horizontal direction about the pivots 28, 28 together with the cable feeder 16. In this case, as shown in FIG.
Since the fixing disk 34 also rotates by 90 degrees, the positioning hole 35b or 35d is inserted into the small-diameter insertion portion 37a of the plunger 37.
Is displaced to the position opposite to. Therefore, by inserting the small-diameter insertion portion 37a into the positioning hole 35b or 35d, the mounting table 20 is positioned and held at the position rotated by 90 degrees, and the cable 5 is moved by the endless belts 19, 19 which are vertically moved in the horizontal position. Can be sent out and laid.

When it is necessary to feed the cable 5 at a lower position, the mounting table 20 is rotated by 180 degrees about the pivot shafts 28 and 28 together with the cable feeding device 16 to turn the device 16 upside down. I do. In this case, since the positioning hole 35c of the fixing disk 34 is displaced to the upper position, the mounting table 20 is positioned by inserting the small-diameter insertion portion 37a of the plunger 37 into the positioning hole 35c.
Can be fixed. Therefore, the cable 5 can be sent out and laid by the endless belts 19, 19 located below.

As described above, the center of gravity of the cable feeding device 16 on the mounting table 20 is
Since it is fixed so as to substantially coincide with the rotation axis L of 28, even the mounting table 20 on which the heavy device 16 is mounted can be easily and safely rotated. Therefore, when the device 16 is positioned and fixed corresponding to the position where the cable 5 is pulled, the workability is greatly improved. Further, even when the cable feeding device 16 is fixed at the left and right positions, the position of the center of gravity hardly shifts in the left and right direction, so that the stability of the entire device does not decrease.

[0019]

As described above, according to the present invention,
Since both ends of the mounting table on which the cable feeding device is mounted and fixed are rotatably supported by the table rotation support mechanism, and the mounting table is positioned and fixed at the predetermined rotation position by the table positioning mechanism, the cable is fixed. A plurality of mounting pedestals and the like are provided on the feeder side, so that the cable feeder can be positioned and fixed with good workability in accordance with the cable pulling position without increasing the size and weight of the cable feeder. It is possible to provide a mount that can be used. Also,
Position of the center of gravity of the entire rotating part, including the feeder and mounting table
The position is set so that it almost coincides with the rotation axis.
Move the center of gravity of the entire rotating part as the table rotates
Can be reduced and therefore the cable feeder
Even if you fix the
The dispensing device can be stably installed.

[Brief description of the drawings]

FIG. 1 is an enlarged view of a main part of a gantry for a cable feeding device according to the present invention.

FIG. 2 is an explanatory view of a main part of the gantry.

FIG. 3 is a partial explanatory view of the gantry.

FIG. 4 is a front view showing the entire gantry.

FIG. 5 is a front view showing a state where the cable feeding device is mounted on the mount and fixed.

FIG. 6 is a plan view showing a state in which a cable feeder is installed in a conventional manhole.

FIG. 7 is a side view showing a frame for a conventional cable feeding device.

[Explanation of symbols]

 Reference Signs List 5 cable 16 cable feeder 20 mounting table 24 table rotation support mechanism 28 pivot axis 30 holding bar 31 sliding bush 32 column 34 fixing disk 35a to 35d positioning hole 37 plunger

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Koji Akiyoshi, the inventor, 1-6-1, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Shuichi Genno 1-1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Within Nippon Telegraph and Telephone Corporation (72) Inventor Seiichiro Sano 2-1-1 Oda Sakae, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Inside Showa Electric Wire & Cable Co., Ltd. No. 1-1 Inside Showa Electric Wire & Cable Co., Ltd. (72) Inventor Kazuya Amano 2-1-1 Sakae Oda, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Inside Showa Electric Wire & Cable Co., Ltd. (56) References JP 1-252109 ( JP, A) JP-A 4-65425 (JP, U) JP-A 62-202010 (JP, U)

Claims (2)

(57) [Claims] 1. A gantry for mounting and fixing a cable feeding device, the mounting table being mounted and fixed with the cable feeding device, and supporting both ends of the mounting table in a cable feeding direction. A table rotation support mechanism including a pair of support rods that rotate about a rotation axis along the axis, a slide bush fixed to a holding bar that holds the table rotation support mechanism, and the slide bush is vertically movably fitted. A support for fixing the sliding bush at a desired height position, and a table positioning mechanism for positioning and fixing the mounting table at a predetermined rotation position, wherein the rotation includes the cable feeding device and the mounting table. A gantry for a cable feeding device, wherein a center of gravity of a body substantially coincides with the rotation axis. Mechanism wherein said platform positioning, fixed to said support rod, and a fixing disc in which a plurality of positioning holes are provided on a concentric circle around the axis of rotation, the holding bar
Plan with a bracket attached to said face and fixing discs to chromatography, the insertion portion to be inserted is attached to the bracket to the positioning hole of one of the fixing disc
The mount for a cable feeding device according to claim 1, further comprising a jaw.