JP3250910B2 - Spiral sleeve winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device for winding a spiral sleeve around an overhead wire, and more particularly to a spiral sleeve winding device for automatically winding a spiral sleeve around the outer circumference of a wire such as an overhead communication cable. About.

[0002]

2. Description of the Related Art Since a communication cable is usually installed at a height of 5 m or more from the ground, an aerial work vehicle 2 having a boom 1 is used when performing work on a pole (see FIG. 1). A work table 3 is mounted on the top end of the boom 1 together with a robot arm 4. Tools and machines are mounted on the robot arm 4, and various operations are performed by a worker directly or indirectly controlling the work vehicle. are doing.

As a communication cable, a self-supporting communication cable (SS cable) in which a cable main body and a support wire are arranged in parallel and a protective layer is collectively provided on them is known (see FIG. 2).

When the SS cable 5 is laid aerial, the cable body 6 and the supporting wire 7 are separated from each other near the telephone pole 8. A line guard 9 is wound around the support wire 7, and is fixed to a side surface of the utility pole 8 with a hardware 10. Cable body 6
Is wound around a spiral sleeve 11 to protect the cable body 6 from tension. In order to eliminate the danger of workers involved in working at heights, a spiral sleeve winding device that automatically performs these works has been proposed (Japanese Patent Application No. Hei 2-137966).

Hereinafter, a method of winding a spiral sleeve will be described with reference to FIG. 3 in order to point out the problems of the above-mentioned technology.

The spiral sleeve 11 is formed of a material having a certain elasticity so that it becomes tubular when left in a natural state (a state in which no external force is applied) (FIG. 3).
(A)). When this is stretched, it becomes a substantially semi-cylindrical shape, and the length of the spiral sleeve in the longitudinal direction at this time becomes the "required length Lo" (FIG. 3B).

Since the spiral sleeve 11 acts elastically so as to be tubular in its natural state, the spiral sleeve 11 is wound around the cable main body 6 (FIG. 3C,
(D)) Finally, the adhesive tape 12 is wound around both ends of the spiral sleeve 11 and fixed (FIG. 3 (e)).

If the spiral sleeve whose required length Lo changes is wound by a conventional winding device, the sleeve may be twisted, an overlapping portion R and a gap G may be generated, or the spiral sleeve 11 may not be wound uniformly (see FIG. 1). 4 (a)).

In order to improve these and realize a winding state without the overlapping portion R and the gap G (see FIG. 4B), a new spiral sleeve winding device has been proposed by the present applicant. (See Nippon 4-84292).

[0010]

However, this spiral sleeve winding device is insufficient in workability because the spiral sleeve is wound in an extended state.

Accordingly, an object of the present invention is to provide a spiral sleeve winding device with further improved workability.

[0012]

In order to achieve the above object, the present invention relates to a spiral sleeve winding apparatus for winding a spiral sleeve around an imaginary linear body. A pair of extra length storing means for spirally holding and storing the spiral sleeve to be wound, and each of the pair of extra length storing means in a direction opposite to each other around the linear body in order to wind the spiral sleeve around the linear body. Rotating means for rotating the pair of extra length storing means so as to revolve.

[0013]

The present invention is configured as described above.
As the pair of rotating means rotate in the opposite directions to each other, the spiral state of the spiral sleeve held by the extra length storing means is sequentially loosened, and at the same time, the spiral sleeve is sequentially wound around the linear body.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a spiral sleeve device according to the present invention will be described with reference to the accompanying drawings. In the description with reference to the drawings, the same elements will be denoted by the same reference symbols, without redundant description.

First, the principle of the spiral sleeve winding device according to the present invention will be described with reference to FIG. FIG. 5 is an explanatory diagram showing the principle of the present invention.

The spiral sleeve winding device according to the present invention basically includes extra length storing means 20 and rotating means 21. A pair of extra length storage means 20 is arranged around the linear body 22 at a predetermined interval with the linear body 22 interposed therebetween. A spiral sleeve 11 having adhesive tapes connected to both ends is wound around the extra length storage means 20. Further, a pair of rotating means 21 is connected to the extra length storing means 20, and the extra length storing means 20
Revolve in opposite directions. Spiral sleeve 20
Is wound around one extra length storage means 20 (for example, extra length storage means located on the left side in FIG. 5), and the other end is wound around the other extra length storage means 20 (for example, extra length storage means located on the right side in FIG. 5). Means) in the same direction. for that reason,
The spiral sleeve 11 is stretched from one extra length storage means 20 to the other extra length storage means 20.

In this state, one rotating means 21 (for example, rotating means located on the left side in FIG. 5) is turned clockwise as viewed from the left side in FIG. 5, and the other rotating means 21 (for example, rotating means located on the right side in FIG. 5). ) Is rotated counterclockwise as viewed from the left side of FIG. By this rotation, the stretched spiral sleeve 11 is wound around the linear body 22 as the rotation proceeds.

When the outer diameter of the linear body is different from that of the standard outer diameter, the spiral sleeve winding device according to the present invention can cope with the following three methods. In any case, the spiral sleeve 11 is cut in advance to a predetermined length according to the outer diameter of the linear body 22.

The first method is to change the pitch of the spiral sleeve 11 wound around the extra length storing means 20. For example, when winding the spiral sleeve 11 around a linear body thinner than the standard linear body, the extra length storage means 2
When the spiral sleeve wound around zero is increased in pitch and the spiral sleeve 11 is wound around a linear body thicker than the standard linear body, the pitch of the spiral sleeve wound around the extra length storage means 20 may be reduced.

The second method is to change the distance m between the pair of extra length storing means 20. The pitch at which the spiral sleeve 11 is wound around the linear body 22 can be easily changed by changing the distance between the pair of extra length storage means 20. For example, when the interval m between the pair of extra length storage means 20 is reduced, the pitch of the spiral sleeve 11 is reduced, so that the spiral sleeve can be wound around a thick linear body without leaving a gap. Further, if the interval m is increased, the pitch of the spiral sleeve 11 is increased, so that the spiral sleeve can be wound without forming an overlapping portion on a thin linear body.

The third method is a method of changing to extra length storing means having different outer diameters. By replacing the extra length storage means with a large outer diameter, the spiral sleeve can be wound around a thicker linear body without leaving a gap. Further, by replacing the extra length storing means with a small outer diameter, the spiral sleeve can be wound without forming an overlapping portion on a thinner linear body.

As described above, the spiral sleeve 11 can be easily wound around a linear body other than the standard outer diameter (a linear body having a different outer diameter) by various methods.

Next, a spiral sleeve winding device according to an embodiment of the present invention will be described with reference to FIGS. 6 and 7. FIG. 6A is a plan view of the spiral sleeve winding device according to the present embodiment, FIG. 6B is a side view of the spiral sleeve winding device according to the present embodiment, and FIG. 7) is a view from the line AA, FIG. 7 (a) is a side view showing the rotation mechanism applicable to the present embodiment together with the inner rotor, and FIG. 7 (b) is a view from the line BB in FIG. 7 (a). FIG. 3C is a front view of the spiral sleeve holding plate.

This spiral sleeve winding device comprises a casing 31, a side plate 32, an inner rotor 3
3, a transmission claw 34, a tie rod 35, a reel 36, and an adhesive tape pressing roller 37.

A pair of inner rotors 33 are disposed on both sides of the device, and a pair of inner rotors 33 are provided.
A reel 36 is protruded near the outer periphery of the opposing surface.
Since the center axis of the reel 36 is substantially parallel to the rotation axis of the inner rotor 33, when the inner rotor 33 rotates, the reel 36 forms a cylindrical locus. A plurality of teeth G are formed on the outer periphery of the inner rotor 33, and the inner rotor 33 is driven by a plurality of gears meshing with the teeth G. About this mechanism,
Details will be described later with reference to FIG.

The reel 36 is arranged at a certain distance from the rotation axis of the inner rotor 33 and sandwiches the rotation axis. The reel 36 is movable in the rotation axis direction, and is detachably mountable to the inner rotor 33. Although the moving mechanism and the mounting mechanism of the reel 36 are not shown, for example, a female screw is formed on the inner surface of the reel 36,
This can be realized by screwing the reel 36 to a male screw member protruding from the inner rotor 33. As reels having different outer diameters, for example, 22 mm and 23 m
There are reels having diameters of m, 24 mm, and 25 mm. By changing these reels, a spiral sleeve can be wound around a main body cable having various outer diameters.

A linear body (not shown) such as a main body cable is
Since the inner rotor 33 must be arranged on a central axis (hereinafter, referred to as “center axis”) around which the inner rotor 33 rotates, the inner rotor 33 has a cutout portion C that is cut out from the outer peripheral portion to the central portion ( FIG. 6C). Four tie rods 35 are arranged so as to surround the inner rotor 33 in parallel with the center axis of the inner rotor 33.

On the opposing surfaces of the pair of inner rotors 33, in addition to the reel 36 described above, one end of a first holding plate 38 having a substantially L-shaped cross section is fixed, and the other end of the first holding plate 38 Is fixed to a second holding plate 39 having a substantially U-shaped cross section. The pressing roller 37 is held by the shaft 40 on the second holding plate 39. Pressing roller 37
Is arranged so that its axis 40 is substantially parallel to the central axis of the reel 36, and is urged toward the reel 36 by a tension coil spring 41 (see FIG. 6C).

The pressing roller 37 is disposed slightly apart from the reel 36, and is rotated by centrifugal force.
The pressing roller 37 moves away from the reel 36 against the tension coil spring 41. But spiral sleeve 1
When the winding of 1 is near the end and the tape 12 is wound, the rotation of the inner rotor 33 is slowed down, and the pressing roller 37 approaches the reel 36 by the urging force of the tension coil spring 41. Then, the adhesive tape 12 functions so as to be securely wound around the spiral sleeve 11 and the cable 22.

Next, the rotation mechanism of the inner rotor 33 will be described with reference to FIG. The driving mechanism includes a motor 42 for driving the inner rotor 33 to rotate, a driving gear 43 directly connected to a driving shaft of the motor 42, and a driving gear 4.
3 and an intermediate gear 44 for transmitting rotation to the teeth G formed on the outer periphery of the inner rotor 33, a guide gear 45 meshing with the teeth G of the inner rotor 33, and a frame 46 having a side plate 46a for holding the guide gear 45. Is done.

With this rotating mechanism, when viewed from the left side in FIG. 6B, for example, the inner rotor 3 located on the left side
3 revolves clockwise (CW), and the inner rotor 33 located on the other right side revolves counterclockwise (CCW). As a result, the reels 36 revolve in opposite directions, and as a result, the spiral sleeves 11 are sequentially unraveled.

The spiral sleeve winding device according to the present embodiment is similar to the spiral sleeve winding device shown in FIG.
By meshing with No. 4, it can be used.

The spiral sleeve wrapping device according to the present embodiment is installed, for example, on a workbench of an aerial work vehicle (see FIG. 1), and connects the bridged main body cable 22 to a notch C of a pair of inner rotors 33. Insert inside. Thereafter, the motor 42 is started, and the power of the motor 42 is transmitted to the reel. The power of the motor 42 is driven by a driving gear 43 and an intermediate gear 44.
Through the inner rotor 33, and the pair of reels 36 revolve in opposite directions. As a result, the spiral sleeve 11 wound around the pair of reels 36 is released from the reels 36 and the main body cable 2
Wound around 2. After all the spiral sleeves 11 are wound around the main body cable 22, the adhesive tapes 12 connected to both ends of the spiral sleeve 11 are wound around the main body cable 22. In this case, the adhesive tape 12 is securely fixed to the main body cable 22 by the pressing roller 37 arranged along the longitudinal direction of the reel 36.

As described above, according to the spiral sleeve winding device according to the present embodiment, the spiral sleeve can be easily wound around the main body cable, so that the workability of the spiral sleeve winding device is further improved.

Further, in the spiral sleeve winding device according to the present embodiment, since the winding method does not utilize the return of the spiral sleeve, no winding disturbance occurs.

Further, the spiral sleeve wrapping device according to the present embodiment can easily cope with a main body cable having a different outer diameter, and no winding disturbance due to the different outer diameter occurs.

Further, when an adhesive tape is used,
By connecting the adhesive tape to both ends of the spiral sleeve, the adhesive tape is also automatically wound around the main body cable.

It should be noted that the present invention is not limited to the above-described embodiment, and that various modifications are possible.

For example, a position holding mechanism may be attached to hold the position of the spiral sleeve 11 wound around the reel 36. FIG. 8 is an explanatory diagram illustrating an example of a position holding mechanism that can be used in the present invention.

This position holding mechanism includes a pressing member 50 for pressing the spiral sleeve, a compression coil spring 51, and a spring holding member 52. The spring holding member 52 is fixed to one end of the reel 36 on the inner rotor 33 side, and the compression coil spring 51 is held by the spring holding member 52. A pressing member 50 is arranged between the compression coil spring 51 and the spiral sleeve 11. The pressing member 50 is urged toward the spiral sleeve by a compression coil spring 51. As a result, the spiral sleeve 11 is held without any gap.

Further, a grip for gripping the robot arm 4 (see FIG. 1) may be attached to the tie rod 35 (see FIG. 6) so that the robot arm 4 can easily handle the grip.

[0042]

As described above, the present invention is constructed as described above, so that the workability of the spiral sleeve winding device is further improved.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of an operation using an aerial work vehicle.

FIG. 2 is a diagram showing an SS cable installed on a telephone pole.

FIG. 3 is a process diagram showing a method of winding a spiral sleeve.

FIG. 4 is a view showing a state of a spiral sleeve wound around a main body cable.

FIG. 5 is a view showing the principle of a spiral sleeve winding device according to the present invention.

FIG. 6 is a diagram showing a main part of a spiral sleeve winding device according to one embodiment of the present invention.

FIG. 7 is a diagram showing an outline of a rotation mechanism applicable to a main part of the spiral sleeve winding device of FIG. 6;

FIG. 8 is an explanatory view showing an example of a position holding mechanism that can be used in the present invention.

[Description of Signs] 1 ... Boom, 2 ... Aerial work vehicle, 3 ... Work table, 4 ... Robot arm, 5 ... SS cable, 6 ... Cable body, 7 ...
Support wire, 8 ... telephone pole, 9 ... line guard, 10 ... hardware, 1
DESCRIPTION OF SYMBOLS 1 ... Spiral sleeve, 12 ... Adhesive tape, 20 ... Extra length storage means, 21 ... Rotating means, 22 ... Linear body, 31 ... Casing, 32 ... Side plate, 33 ... Inner rotor, 34 ... Transmission claw, 35 ... Tie rod, 36 ... reel, 37 ... pressing roller, 38 ... first holding plate, 39
... Second holding plate, 40 ... Shaft, 41 ... Tension coil spring, 4
2 ... motor, 43 ... drive gear, 44 ... intermediate gear, 45 ...
Guide gear, 46 ... frame, 50 ... pressing member, 51 ...
Compression coil spring, 52: spring holding member.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroshi Nakanishi 1-6-1, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Minoru Shiragata 1-16-1 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Taku Nakada 1-6-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) References JP-A-4-307221 (JP, A) JP-A-5 JP-A-5-155534 (JP, A) JP-A-4-8111 (JP, A) JP-A-3-7009 (JP, A) JP-A-5-292615 (JP, A) JP-A-48-43183 (JP, A) ) 56-51766 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) H02G 1/02

Claims (6)

(57) [Claims] 1. A spiral sleeve winding device for winding a spiral sleeve around an overhead linear body, a pair of extra length storing means arranged to be spaced apart from the linear body and holding and storing the spiral sleeve in a spiral shape. Rotating the pair of extra length storage means so that each of the pair of extra length storage means revolves around the linear body in opposite directions to wind the spiral sleeve around the linear body. And a rotating means for rotating the spiral sleeve. 2. The rotating means includes a rotating member having a notch formed extending to a rotation axis along a radial direction, and the extra length storage means is disposed in a longitudinal direction along the rotation axis. The spiral sleeve winding device according to claim 1, further comprising a reel member fixed to the rotating member so as to be accommodated and storing the spiral sleeve wound around a surface thereof. 3. The spiral sleeve winding device according to claim 2, wherein the reel member is capable of winding an adhesive tape for fixing an end of the spiral sleeve wound. 4. The spiral sleeve winding device according to claim 2, wherein the rotating member further includes a roller for pressing the adhesive tape against the reel member. 5. The spiral sleeve winding device according to claim 2, wherein the reel member is detachably held by the rotating member. 6. The reel member according to any one of claims 2 to 5, further comprising pressing means for pressing the spiral sleeve wound around one of the reel members in a direction approaching the spiral sleeve wound around the other of the reel members. The spiral sleeve winding device according to the above.