JPH08140251A - Anchor clamp - Google Patents

Abstract

PURPOSE: To press-fit a wedge to a clamping section easily by providing a first protrusion in the clamping section so as to protrude in a direction perpendicular to the direction of insertion of the wedge, and providing a second protrusion on the wedge so as to be opposite to this. CONSTITUTION: A first protrusion 4a is provided so as to protrude upwards from the end surface of a clamping section 2, and a second protrusion 4b is provided so as to be opposite to the first protrusion 4a. As a result, when an electric wire is fitted to the anchor clamp 1 by a robot, the fingers M1 and M2 of the manipulator are positioned outside the first and second protrusions 4a and 4b. If both fingers M1 and M2 are operated so as to narrow the interval between them following this, a wedge 3 whose part has been inserted into the clamping section 2 can be press-fit to the clamping section 2 up to a position shown by a full line from a position shown by a two-dot chain line. This is suitable for robot work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detention clamp, and more particularly to a detention clamp which can be used by a robot to easily install an electric wire on a pillar.

[0002]

2. Description of the Related Art Conventionally, this type of tow clamp has a clamp portion connected to the electric pole side via a tension insulator and a wedge portion inserted into the clamp portion. When the wedge part is inserted into the clamp part while the electric wire is held between the electric wire and the clamp part, the electric wire can be grasped by the retention clamp due to the wedge effect.

[0003]

However, the above-mentioned conventional tow clamp is not problematic when the operator directly works on the pillar to perform the work, but the work to be performed while the electric current is flowing in the electric wire, In order to safely carry out so-called live work,
It was not suitable for work performed using a robot as shown in FIG.

In particular, in order to insert the wedge portion into the clamp portion and further press-fit it, it is necessary to perform a press-fitting operation of hammering the driving portion provided in the wedge portion.

When this work is directly carried out by a worker, it can be easily carried out. However, it is not easy to perform this press-fitting operation with the robot R as shown in FIG. This is because the manipulator M of the robot R is attached to the electric wire L stretched over the electric pole P with the tension clamp attached.
This is because not only is it difficult to drive the wedge portion with a hammer, but there is a risk of damaging the tension insulators and the like.

[0006] Therefore, it is an object of the present invention to provide a retractable clamp in which the wedge portion can be easily press-fitted into the clamp portion even in the case of pole work using a robot.

[0007]

In order to achieve the above-mentioned object, a detention clamp according to the present invention comprises a clamp part and a wedge part inserted into the clamp part, and between the clamp part and the wedge part. In a detention clamp for holding an electric wire, when inserted into the clamp part, a first protrusion provided on the clamp part protruding on a side where the wedge part is inserted and in a direction orthogonal to the insertion direction. And a second protrusion provided on the wedge portion so as to face the first protrusion.
In addition, the first protrusion is provided in addition to the one that faces the second protrusion, and the position of one of the first protrusion is the same as that of the first protrusion.
It is characterized in that it is provided on the opposite side of the projection.

[0008]

In the above structure, when the first protrusion and the second protrusion are held by the manipulator of the robot and are attracted, the wedge portion is press-fitted into the clamp portion.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1A is a front view of a detention clamp 1 according to an embodiment, and FIG. 1B is a plan view of FIG.

The detention clamp 1 has a clamp portion 2 and a wedge portion 3 as in the conventional case, and an electric wire (not shown) is clamped between the clamp portion 2 and the wedge portion 3 so that the electric wire is formed by the wedge effect. Is configured to grip the detention clamp 1.

That is, the clamp portion 2 is provided with a tapered insertion hole 2a which is notched on one side surface (front surface in FIG. 1A), and the wedge portion 3 mounts an electric wire on the insertion hole 2a. The wedge portion 3 is configured to be inserted in a state of being placed, and therefore, as the wedge portion 3 is inserted into the clamp portion 2, a clamping force is generated between the clamp portion 2 and the wedge portion 3 and The electric wire is seized.

In the figure, reference numeral 2b denotes a mounting piece integrally provided on the clamp portion 2, which is used when the retracting clamp 1 is connected to the electric pole side through a tension insulator or the like (not shown). Further, 3a is a bolt screwed into the wedge portion 3, and is a holding piece 3 for fixing the electric wire to the wedge portion 3.
Used when tightening b.

Since the mechanism for holding the electric wire of the clamp portion 2 and the wedge portion 3 is the same as that of the conventional retracting clamp, further explanation is omitted.

In the figure, 4a is a first protrusion,
b is the second protrusion. Of these, the first protrusion 4a is provided integrally with the clamp portion 2 by protruding upward from the end surface of the clamp portion 2 on the side where the wedge portion 3 is inserted.

The second protrusion 4b is integrally provided on the wedge portion 2 so as to face the first protrusion 4a on the clamp portion 2 side when the wedge portion 3 is inserted into the clamp portion 2. There is. The protrusions 4a and 4b are provided so as to be offset from each other when the wedge portion 3 is inserted into the clamp portion 2 (see FIG. 1B).

When the electric wire is attached to the retracting clamp 1 having the above-mentioned structure, in order to perform the work by the robot R as shown in FIG. 5, the manipulator having a pair of fingers M1 and M2 as shown in FIG. M is used.

That is, as shown in FIG.
When the fingers M1 and M2 of the manipulator M are positioned outside the first protrusion 4a and the second protrusion 4b and then actuated so as to narrow both the fingers M1 and M2, a part is inserted into the clamp portion 2. The wedge part 3 is shown in FIG.
(A) is press-fitted into the clamp portion 2 from the position indicated by the two-dot chain line to the position indicated by the solid line.

As described above, the retractable clamp 1 according to the present embodiment can press the wedge portion 3 into the clamp portion 2 only by pulling the both protrusions 4a and 4b without hitting with a hammer as in the conventional case. It can be suitable for work.

In FIG. 3, both the projections 4a and 4b have a shape projecting upward (see FIG. 1 (a)), but here the projections 4a 'and 4b' project laterally. It has the shape of Also in the case of such both protrusions 4a ', 4b', it is possible to make them suitable for robot work, as described above.

FIG. 4 shows an example in which one more first protrusion 4a 'of FIG. 3 is added. The additional additional first protrusion 4a ″ is provided on the end surface of the clamp portion 2 on the opposite side of the first protrusion 4a ′, that is, at a position different by 180 °.

Thus, the two first protrusions 4a ', 4
When it is set to a ″, the manipulator M shown in FIG. 2 may have three fingers (not shown). When such three fingers are used, The insertion direction of the wedge part 3 can be made to coincide with the hole direction of the insertion hole 2a of the clamp part 2,
The wedge part 3 can be securely press-fitted into the clamp part 2.

[0022]

The retractable clamp according to the present invention has the first projection provided on the clamp portion protruding on the side where the wedge portion is inserted and in the direction orthogonal to the inserting direction, and is inserted into the clamp portion. Since it has a second protrusion provided on the wedge portion so as to face the first protrusion when pressed, both the protrusions can be attracted and the wedge portion can be press-fitted into the clamp portion. Can be suitable for. Further, the first protrusion is provided in addition to the one that faces the second protrusion, and when the other one protrusion is provided on the opposite side of the first protrusion,
Since the insertion direction when the wedge portion is press-fitted and the hole direction of the insertion hole provided in the clamp portion can be made more coincident with each other, the wedge portion can be securely press-fitted.

[Brief description of drawings]

FIG. 1A is a front view of a detention clamp portion according to an embodiment of the present invention, and FIG. 1B is a plan view of FIG.

FIG. 2 is a perspective view showing an example of a manipulator of a robot.

FIG. 3 is a plan view of a detention clamp according to another embodiment of the present invention.

FIG. 4 is a plan view of a detention clamp according to yet another embodiment of the present invention.

FIG. 5 is an explanatory diagram of robot work.

[Explanation of symbols]

 1 Stretching Clamp 2 Clamp Part 3 Wedge Part 4a, 4a'4a "First Protrusion 4b, 4b 'Second Protrusion

Claims (2)

[Claims] 1. A towing clamp comprising a clamp part and a wedge part inserted into the clamp part, and holding an electric wire between the clamp part and the wedge part, wherein the wedge part is inserted on the side where the wedge part is inserted. The first provided on the clamp portion protruding in the direction orthogonal to the insertion direction
And a second protrusion provided on the wedge portion so as to face the first protrusion when inserted into the clamp portion. 2. The first protrusion is provided in addition to the one that faces the second protrusion, and the position of the one is provided on the opposite side of the first protrusion. The detention clamp according to claim 1, wherein: