JPH09261830A - Cable hanger strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable control from a distant point on the ground and automatic installation by robots by providing a cable hanger with a band portion extending from one end of its retaining tube section and with a latch portion to be anchored into an inside anchoring hole and an outside anchoring hole formed at an end of the band portion. SOLUTION: This cable hanger 1 is installed as follows: The cable hanger 1 is held using a lower hand 44, and a lower arm 42 is operated to pass a cable K through an opening 20 facing upward. The cable K is then fit into a retaining tube section 2. Then a messenger wire W is passed through a hooking gate 30 facing downward, and fit into a hooking tube section 3. An upper arm 43 is operated, and the hooking tube section 3 is squeezed using the upper moving claws 47 of the upper hand 45 to plastically deform a folded portion and superpose it on a flat plat portion 22. When the lower moving claws 46 of the lower hand 44 is squeezed here, the retaining tube section 2 is compressed, and the T-shaped latch portion 24 of a band portion is caught in a T-shaped inside anchoring hole and a T-shaped outside anchoring hole. This secures the end of the latch portion 24 and completes this operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable hanger for suspending a cable such as an electric wire on a messenger wire stretched on a utility pole or the like.

[0002]

2. Description of the Related Art The work of suspending a cable on a messenger wire is performed by manually attaching a cable hanger by a worker hanging on the messenger wire or by a worker riding on a lift of an automobile equipped with a worker lifting device. ing. Since this cable hanger installation work is dangerous and the work cost is high, remote operation from the ground and automation by a robot are desired.

[0003]

Since the conventional cable hanger is premised on manual attachment with a high degree of freedom, it is difficult to use it as it is for automatic attachment by a robot hand. The purpose of this invention is
It is possible to install a cable hanger for suspending a cable on a messenger wire by a simple operation, and to provide a strip plate cable hanger having a structure suitable for remote operation from the ground and automatic installation by a robot.

[0004]

SUMMARY OF THE INVENTION The present invention is a strip plate cable hanger for suspending a cable on a messenger wire, which has a semi-cylindrical holding cylinder portion for holding the cable. A hooking tubular part formed by extending one end of the holding tubular part and bending outward and having a downward hooking port for hooking the messenger wire; and a connecting part between the hanging tubular part and the holding tubular part. The formed inner engagement hole, the extension portion formed by extending the tip of the hooking cylinder portion, the outer engagement hole formed in the extension portion and overlapping with the inner engagement hole, and the holding cylinder portion Has a band part extending from the other end, and a clasp part formed at the tip of the band part to engage with the inner engagement hole and the outer engagement hole.

[0005]

The cable hanger of the present invention is
It will be installed in the next operation. The holding cylinder is grasped by the robot hand, the cable is inserted into the holding cylinder through the upward opening of the holding cylinder, and then the wire is inserted into the hanging cylinder through the downward hooking port. Next, when the hook cylinder is plastically deformed by the movable claw and the holding cylinder is compressed by the robot hand, the clasp engages with the punching hole of the connecting portion and the punching hole of the overlapping portion and is plastically deformed. Since this cable hanger can suspend a cable on a wire by a simple operation, it is easy to remotely control from the ground or to be automated by a robot. Therefore, cable replacement and extension work can be performed safely and at low cost.

According to a third aspect of the present invention, the hooking tubular portion is formed with a notch bent inward, and a claw that engages with the twisted wire groove of the messenger wire is formed. . With this configuration, the claw easily engages with the twisted wire groove, so that the swing of the cable can be prevented. Claim 4
In the configuration described in (1), the claw is provided with an inclination corresponding to the twisted wire groove of the messenger wire. With this configuration, the claw easily engages with the twisted wire groove, so that the swing of the cable can be prevented.

[0007]

1 and 2 show a strip plate cable hanger 1 according to the present invention, which has a holding cylinder portion 2 which is bent into a semi-cylindrical surface and has an upward opening 20, and one end of which is extended. , Has a hooking tubular portion 3 that is curved outward and has a hooking port 30 facing downward. The cable hanger 1 hooks the messenger wire W on the hooking tubular portion 3 to hold the cable K in the holding tubular portion 2.

The holding tube portion 2 is set to a semi-cylindrical surface portion 21 having a diameter corresponding to the diameter of the messenger wire W to be hung, and an upper end at one end thereof is a flat plate portion 22 continuous to the hanging tube portion 3. The other end of the holding tubular portion 2 is extended obliquely upward to form a band portion 23, and the tip of the band portion 23 is bent to the inside and is a clasp portion 24 formed in a T shape. On both edges of the strip, the half cylinder surface portion 2
The inclined surfaces 25, 25 are formed in the direction of expanding 1 to prevent the contact surface with the held cable K from becoming an edge.

The hooking tubular portion 3 is formed of a cylindrical surface portion 31 which is continuous with the flat plate portion 22 and is open to the outside, and a bent back portion 32 provided at the tip of each cylindrical surface portion 31. The flat plate portion 22 is formed with a T-shaped inner engagement hole 26 into which the clasp portion 24 is fitted by punching. Bending part 32
Similarly, an outer engaging hole 33 is formed by punching a T-shape.

On both sides of the cylindrical surface portion 31, a pair of locking claws 35 for locking the stranded wire groove 11 of the messenger wire W,
35 is provided by cutting and raising an L-shaped cut toward the center side. The locking claws 35 are provided in a pair or more, and in this embodiment, the locking claws 35, 35 of each pair are formed in different steps according to the inclination of the twisted wire groove 11. The locking claw 35 has a function of locking the stranded wire groove 11 and preventing the cable K from swinging around the wire W.

3 and 4 show the work of mounting the cable hanger 1. Messenger wire W stretched between utility poles
The robot 4 is hung freely for traveling. Robot 4
Has a body 41, and a lower arm 42 and an upper arm 43 provided on the lower surface and the upper surface of the body 41. A lower hand 44 and an upper hand 45 are attached to the tips of the arms 42, 43, respectively.
Movable claws 46 and 47 are provided on the reference numerals 4 and 45.

As shown in (a) of FIG. 3 and FIG. 4, the lower hand 44 holds the cable hanger 1, and the lower arm 42 is moved to insert the cable K through the upward opening 20 to hold the cable K in the holding cylinder 2. Fit in. Next, the messenger wire W is inserted from the downward hook 30 and fitted into the hook tube 3. Next, as shown in (b) of FIG. 4, the upper arm 43 is moved and the upper movable claw 47 of the upper hand 45 is used to squeeze the tubular portion 3 to bend the bent portion 32.
Is plastically deformed and stacked on the flat plate portion 22.

Further, as shown in FIG. 4C, when the lower movable claw 46 of the lower hand 44 is squeezed, the holding cylinder portion 2 is compressed and the T-shaped clasp portion 24 of the band portion 23 is T-shaped. It narrows into a V-shaped inner engagement hole 26 and a T-shaped outer engagement hole 33.
As a result, the wide end portion of the clasp portion 24 is engaged and fixed to the narrow lower portions of the inner engagement hole 26 and the outer engagement hole 33, and the work is completed.

FIG. 5 shows a second embodiment of the cable hanger. In this embodiment, the locking claws 36 whose tips are inclined toward the stranded wire groove 11 by cutting and raising both sides of the cylindrical surface portion 31,
36 are formed. The locking claws 36, 36 may be formed at the same position parallel to the axis of the wire W as shown in the figure, or may be formed in different steps.

FIG. 6 shows a third embodiment of the cable hanger. In this embodiment, the semi-cylindrical surface portion 21 is bulged inward to form three protrusions 27 parallel to the longitudinal direction. Thereby, the contact between the cable K and the edge of the holding tubular portion 2 can be prevented without providing the inclined surface 25, and the rigidity of the half tubular surface portion 21 can be increased.

FIG. 7 shows a fourth embodiment of the cable hanger. In this embodiment, a large number of embosses 28 protruding inward are formed on the half cylinder surface portion 21 by press molding. Thereby, in addition to the effect similar to that of the third embodiment, the holding force of the cable K by the holding tubular portion 2 can be increased.

[Brief description of drawings]

FIG. 1 is a perspective view of a cable hanger.

FIG. 2 is a perspective view of a cable hanger.

FIG. 3 is a perspective view showing a state where a cable hanger is held by a robot hand.

FIG. 4 is a diagram showing the work of mounting the cable hanger.

FIG. 5 is a perspective view of a cable hanger according to a second embodiment.

FIG. 6 is a perspective view of a cable hanger according to a third embodiment.

FIG. 7 is a perspective view of a cable hanger according to a fourth embodiment.

[Explanation of symbols]

 1 Cable Hanger 2 Holding Cylinder 3 Hooking Cylinder 11 Stranded Wire Groove of Messenger Wire 20 Upward Opening 21 Half-Cylinder Surface 23 Band Part 24 Clasp 26 Inner Engagement Hole 30 Downward Engagement Port 33 Outer Engagement Hole 35 Engaging Claw 36 Locking Claw K Cable W Messenger Wire

Claims (4)

[Claims] 1. A cable hanger made of a strip plate for hanging a cable on a messenger wire, comprising: a holding cylinder portion having a semi-cylindrical surface for holding the cable; and one end of the holding cylinder portion. Is formed by bending outward and extending, and a hooking tubular portion having a downward hooking port for hooking the messenger wire, an inner engagement hole formed in a connecting portion between the hanging tubular portion and the holding tubular portion, An extension part formed by extending the tip of the hooking cylinder part, an outer engagement hole formed in the extension part and overlapping with the inner engagement hole, and a band part extending the other end of the holding cylinder part. A cable hanger made of a strip plate, comprising: a front end of the band portion; and a clasp portion that engages with the inner engagement hole and the outer engagement hole. 2. The strip-shaped cable hanger according to claim 1, wherein the inner engagement hole, the outer engagement hole, and the clasp are substantially T-shaped. 3. The band according to claim 1, wherein the hooking tubular portion is formed by bending a notch inward and has a claw that engages with a twisted wire groove of the messenger wire. Board cable hanger. 4. The strip-shaped cable hanger according to claim 3, wherein the claw is provided with an inclination corresponding to a twisted wire groove of the messenger wire.