JP2001061222A - Coaxial cable bending tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coaxial cable bending tool, with which workers can form a slack of uniform shape on a coaxial cable between poles, without differences in workmanship among the workers. SOLUTION: This bending tool has an arm body 1, that is mounted to a pole A or messenger wire C and extends along a coaxial cable B between poles. A central cable receiving member 2, that abuts against the coaxial cable from the top and the bottom surface of which is curved, is provided at the central part of this arm body 1, and end-part cable receiving members 3 are provided that abuts on the cable from bottom and the top surface of which is curved at both the right and left ends of the arm body 1. A cross arm 4 that protrudes downward is provided on the central part of the arm unit 1, and a central cable receiving member 2 is supported movably along this cross arm 4 vertically up along the cross arm 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coaxial cable bending tool used to form a bend called slack on a coaxial cable bridged between utility poles.

[0002]

2. Description of the Related Art Slack is a drainer that prevents rainwater from traveling along a coaxial cable and entering connectors and equipment. However, slack has recently been used to improve the waterproof characteristics of connectors and to use waterproof storage tubes. Rather than draining, it now has a role to absorb the contraction of the coaxial cable due to the temperature difference.

[0003] For this reason, the manner and method of slack shape of the coaxial cable is an important factor that leads to the service life and breakage of the coaxial cable.

However, conventionally, slack shaping of a coaxial cable has been performed manually, and there is an individual difference among workers. Had a problem of causing serious damage that could not be seen.

Accordingly, an object of the present invention is to provide a coaxial cable bending tool capable of forming a slack having a uniform shape without any individual difference in a coaxial cable bridged between utility poles. .

[0006]

A coaxial cable bending tool according to the present invention has an arm body along a coaxial cable stretched between electric poles while being attached to a power pole or messenger wire. A central cable receiving member having a lower surface formed into a curved surface is provided at a central portion, which abuts against the coaxial cable from above, and an upper surface which abuts the left and right ends of the arm body from below with the coaxial cable. Is provided with an end cable receiving member formed on a curved surface, and an orthogonal arm protruding downward is provided at a central portion of the arm body, and the central cable receiving member is moved up and down along the orthogonal arm on the orthogonal arm. It has been supported as much as possible.

Accordingly, when the arm body is attached to a utility pole or a messenger wire along the coaxial cable stretched between the utility poles, and the central cable receiving member that abuts on the coaxial cable from above is pushed down, the both ends of the arm body are pushed down. Since the coaxial cable is supported from below by the end cable receiving members at both ends of the arm body, as the central cable receiving member descends, the coaxial cable is
It can be bent smoothly along the curved surfaces of the central cable receiving member and the end cable receiving member.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A bending tool for a coaxial cable according to the present invention is for bending a coaxial cable B stretched between utility poles A, and has an arm body 1 along the coaxial cable B. The arm body 1 is attached to a messenger wire C or a telephone pole A that supports the coaxial cable B.

The arm body 1 is provided at the center with a central cable receiving member 2 which comes into contact with a coaxial cable B stretched between telephone poles A from above, and is provided at both left and right ends with respect to the coaxial cable B. And an end cable receiving member 3 which abuts from below.

The central cable receiving member 2 is provided so as to be vertically movable with respect to an orthogonal arm 4 formed to protrude downward at the center of the arm body 1.

The center cable receiving member 2 comprises a pair of left and right nylon resin guide members 2a and 2b each having a curved lower surface and a groove. A pair of left and right guide members 2a,
2b is swingably attached to a seat plate 6 provided to be vertically movable with respect to the orthogonal arm 4 by a swing shaft 5 at the inner end. A stopper wall 7 for defining a swing range of the pair of left and right guide members 2a and 2b is formed at an upper end of the seat plate 6, and a pair of left and right guide members 2a and 2b is formed.
The arc radius is increased by pushing down the outer ends, and the arc radius is reduced by pushing up the outer ends of the pair of left and right guide members 2a, 2b.

The end cable receiving member 3 comprises a guide member 3a made of a nylon resin having a curved upper surface and a groove, and outer ends formed at both ends of the arm body 1 by a swing shaft 8. It is swingably attached to the lower bent portion 9.

The orthogonal arm 4 provided below the center of the arm main body 1 is formed in a quadrangular cylindrical shape, and has window holes 10a and 10b formed in the front and rear walls along the vertical direction.

A screw rod 11 is accommodated in the orthogonal arm 1 along the axis in the vertical direction, and both ends of the screw rod 10 are rotatably supported on upper and lower end surfaces of the orthogonal arm 4. The lower end of the threaded rod 11 protrudes downward from the lower end surface of the orthogonal arm 4, and a bolt head 12 that engages with the rotating tool is formed at this protruding portion.

A mounting tube 13 for the central cable receiving member 2 is provided in the orthogonal arm 4 so as to pass through window holes 10a and 10b formed in the front and rear walls of the orthogonal arm 4, respectively. 13 is provided with a slide cylinder 14 through which the screw rod 11 housed in the orthogonal arm 4 is slidably inserted.

The front end of the mounting cylinder 13 is fixed to the back of the seat plate 7 of the central cable receiving member 2.

On the rear side of the mounting 13, a screw member 15, which is in contact with the thread of the screw rod 11 from the side and engages with the thread of the screw rod 11, is slidably received in the front-rear direction. In the moved state, the thread of the screw member 11 is inserted into the window 16 formed on the rear side of the slide cylinder 14.
And mesh with the thread of the threaded rod 11. On the contrary, the operating rod 1 provided on the rear side of the screw member 15
When the screw member 15 is moved rearward by 7, the screw member 15 comes out of the window hole 16 of the slide cylinder 14 to the rear side, and the screw member 15 and the screw rod 11 do not mesh with each other. The mounting cylinder 13 integrated with the slide cylinder 14 can move up and down with respect to the orthogonal arm 4.

The rear end of the operating rod 17 is attached to the mounting cylinder 1
3 protrudes rearward of the rear wall. Mounting cylinder 13
On the rear wall, pull the operating rod 17 rearward,
A claw portion 18 is provided for fixing the screw rod 11 and the screw member 15 in a released state. When the operation rod 17 is rotated to release the engagement with the claw portion 18, the screw member 15 is moved forward by the spring 19 housed between the rear wall of the mounting cylinder 13 and the rear surface of the screw member 15. , The tip of the screw member 15 is the window hole 1 of the slide cylinder 14.
6 and the screw member 1
The five threads are engaged.

In the state where the thread at the tip of the screw member 15 is engaged with the thread on the side surface of the threaded rod 11, even if the central cable receiving member 2 is pushed down by hand, the central cable receiving member 2 is moved downward. In this state, when the rotating tool is engaged with the bolt head 12 at the lower end of the screw rod 11 to rotate the screw rod 11, the screw rod 1
Since the mounting cylinder 13 moves up and down together with the screw member 15 meshing with 1, the central cable receiving member 2 can be lowered through the seat plate 6 fixed to the tip of the mounting cylinder 13. Further, when the operating rod 17 of the screw member 15 is pulled rearward to release the engagement between the screw rod 11 and the screw member 15, the central cable receiving member 2 is grasped by hand.
Can be pushed down.

The coaxial cable bending tool according to the present invention is used by attaching the arm body 1 to the messenger wire C or the telephone pole A as follows, depending on how the coaxial cable B is stretched.

For example, as shown in FIGS. 6 and 7, when a messenger wire C is stretched at the tip of a protruding arm D wound around and fixed to a telephone pole A, the messenger wire C and a hanging metal fitting are attached to the messenger wire C. The coaxial cable B suspended and supported via E protrudes from the utility pole A and passes through a position separated by the length of the arm D. In this case, the hook fitting 20 is attached to a portion near both sides of the arm body 1 and the hook fitting 20 is hooked on the messenger wire C, and the arm body 1
Along the coaxial cable B supported by the messenger wire C. Then, as shown by a solid line in FIG. 6, the lower surface of the central cable receiving member 2 provided on the orthogonal arm 4 at the center of the arm main body 1 is applied to the upper surface of the coaxial cable B, and the end cable receiving portions at both ends are provided. The upper surface of the member 3 is applied to the lower surface of the coaxial cable B, and the central cable receiving member 2 is pushed down along the orthogonal arm 4 as shown by a chain line in FIG. With the receiving member 3 and the central cable receiving member 2,
The central portion is bent into a curved shape that is lowered downward.
The central cable receiving member 2 is pushed down by the coaxial cable B
Is relatively weak, the operation can be performed manually by pulling the operating rod 17 of the screw member 15 rearward to release the engagement between the screw rod 11 and the screw member 15. Also,
When the coaxial cable B is relatively hard and it is difficult to push down the central cable receiving member 2 by hand, the screw member 15 is moved to the front side so that the screw thread at the tip of the screw member 15 is The screw bar 11 is rotated by applying a rotating tool to the bolt head 12 at the lower end of the screw bar 11 while meshing with the thread on the side surface of the screw bar 11. When the screw rod 11 is rotated, the screw member 1 that meshes with the screw rod 11
Since the mounting cylinder 13 moves up and down together with 5, the center cable receiving member 2 can be lowered through the seat plate 6 fixed to the tip of the mounting cylinder 13 by this.

Next, as shown in FIGS. 8 and 9, when the messenger wire C is stretched so as to pass through the center of the electric pole A, the electric pole A becomes an obstacle, and
Messenger wire C using the hook metal 20
Can not be hooked on. In this case, a mounting adapter G for mounting the arm body 1 is installed on the front surface of the fixing band F of the messenger wire C of the telephone pole A, and the arm body 1 is fixed to the telephone pole A via the mounting adapter G. In the same procedure as above, the central cable receiving member 2 and the end cable receiving member 3 are hung on the coaxial cable B, and the central cable receiving member 2 is depressed.
The coaxial cable B is bent.

[0023]

As described above, when the coaxial cable bending tool according to the present invention is used, the arm body is attached to the electric pole or messenger wire so as to be stretched between the electric poles and along the coaxial cable. When the central cable receiving member abutting from above is pushed down along the orthogonal arm, the coaxial cable can be bent easily and easily along the curved surfaces of the central cable receiving member and the end cable receiving member. There is no individual difference in the slack shape, and it can be formed in a uniform shape, and damage to the coaxial cable can be suppressed as much as possible.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of a coaxial cable bending tool according to the present invention.

FIG. 2 is a side view of the center longitudinal section of the above.

FIG. 3 is a partial cross-sectional plan view showing a state where the engagement between the screw member and the screw rod is released;

FIG. 4 is a perspective view of the state shown in FIG. 3;

FIG. 5 is a partial cross-sectional plan view showing a state where the screw member and the screw rod are engaged with each other;

FIG. 6 is a front view of the same, showing a state in which the arm main body is attached to a messenger wire for use.

FIG. 7 is a side view of FIG. 6;

FIG. 8 is a perspective view of a mounting adapter for mounting the arm body to a utility pole.

FIG. 9 is a front view showing a state in which the arm body is used by attaching to an electric pole.

[Explanation of symbols]

 Reference Signs List A Power pole B Coaxial cable C Messenger wire D Protruding arm E Suspension fitting F Fixed band 1 Arm body 2 Central cable receiving member 2a, 2b Guide member 3 End cable receiving member 3a Guide member 4 Orthogonal arm 5 Swing shaft 6 Seat plate 7 Stopper wall 8 Swing shaft 9 Lower bent portion 10a, 10b Window hole 11 Screw rod 12 Bolt head 13 Mounting cylinder 14 Slide cylinder 15 Screw member 16 Window hole 17 Operating rod 18 Claw 19 Spring 20 Hook fitting

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoru Yoneya 3-3-22 Nakanoshima, Kita-ku, Osaka-shi Inside Kansai Electric Power Co., Inc. (72) Inventor Koichi Kubota 2-3-1 Honjo Higashi, Kita-ku, Osaka-shi No. Kindennai Co., Ltd. (72) Inventor Hiroyuki Toyokawa 2-34-1 Honjohigashi, Kita-ku, Osaka-shi Incorporated Kindainai Co., Ltd. (72) Taiji Yuasa 2-3-141 Honjohigashi, Kita-ku, Osaka Share Company Kindenuchi (72) Inventor Akira Sasai 4-5-1, Ichioka, Minato-ku, Osaka Shoichi Metal Co., Ltd. F-term (reference) 3C031 BB21 5G367 BA03 BB14 KA02

Claims (3)

[Claims] An arm body is provided along a coaxial cable stretched between utility poles in a state where the arm body is attached to a utility pole or a messenger wire, and a central portion of the arm body comes into contact with the coaxial cable from above. A lower surface is provided with a central cable receiving member formed on a curved surface, and left and right ends of the arm main body are provided with end cable receiving members formed on a curved surface with an upper surface being in contact with the coaxial cable from below, A bending tool for a coaxial cable, characterized in that an orthogonal arm protruding downward is provided in a central portion of the arm body, and the central cable receiving member is supported on the orthogonal arm so as to be vertically movable along the orthogonal arm. 2. A screw rod is provided on the orthogonal arm in a vertical direction, and both upper and lower ends of the screw rod are rotatably supported with respect to the orthogonal arm, and the screw moves up and down along the screw rod by the rotation of the screw rod. 2. A bending tool for a coaxial cable according to claim 1, wherein a member is provided, and said central cable receiving member is movable up and down together with said screw member. 3. The orthogonal arm is formed in a quadrangular cylindrical shape, and a window is provided in a front wall and a rear wall of the orthogonal arm along a vertical direction, and is mounted so as to penetrate the orthogonal arm across the window. A cylinder is provided, the center cable receiving member is attached to the tip of the attachment cylinder, a slide cylinder penetrating vertically is formed in the attachment cylinder located in the orthogonal arm, and a threaded rod is inserted through the slide cylinder. A screw that rotatably supports the upper and lower ends of the screw rod on the upper and lower ends of the orthogonal arm, forms a window hole in the rear side surface of the slide cylinder, and engages with the thread on the side surface of the screw rod through the window hole. 2. A bending tool for a coaxial cable according to claim 1, wherein a screw member having a crest formed at a tip thereof is accommodated in said mounting cylinder so as to be movable in the front-rear direction.