JPS6335491Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a conductive gripping tool that allows electrical continuity to be obtained without removing the insulation coating of a communication cable core.

Conventionally, in order to obtain electrical continuity directly from a communication cable core, there were methods to obtain continuity by stripping off the insulation coating, or methods to obtain continuity by pressing a conductor such as a knife over the insulation coating and breaking the coating. is being carried out.

However, these methods have drawbacks, such as erroneous cutting of the core wire, severe damage to the insulation coating, and difficulty in maintaining stable electrical continuity.

In view of the above points, the present invention provides reliable conduction without stripping the insulation coating, without fear of cutting the core wire, and without causing significant damage to the insulation coating.
Moreover, the present invention provides a conductive gripping tool that can maintain stable conduction even in the face of some impact, and will be described in detail below with reference to the drawings.

1 to 4 show embodiments of the present invention,
Reference numeral 1 denotes an outer upper plate made of an insulating material, and has a U-shape in which a left side piece and a right side piece are integrally connected at the lower part of the rear half. Reference numeral 2 denotes an inner upper plate made of an insulating material, which is disposed between both sides of the outer upper plate 1. 3 is a bottom plate made of an insulating material. Both the outer upper plate 1 and the inner upper plate 2 are connected to each other by a mandrel 5 that passes through holes provided in the legs 4 and 4' of the same shape that hang down, respectively, and a hole provided in the bottom plate 3. They are pivotally connected to the bottom plate 3 so as to be rotatable at the center. Reference numeral 6 denotes a core wire fixing spring, which is wound on the left and right sides of the mandrel 5 so that the extension on one side presses the lower surface of the outer upper plate 1 and the extension on the other side presses the upper surface of the bottom plate 3. The front end of the bottom plate 3 and the tip of the outer top plate 1 are brought into contact, and core wires inserted into the groove bottoms of the V-shaped grooves 7 of the bottom plate 1 are provided on the left and right sides of the outer top plate 1. Press it with the cord presser rubber 8. 9 is wound around the center of the mandrel 5, and one extension presses the lower surface of the inner upper plate 2, and the other extension presses the upper surface of the bottom plate 3, so that the tip of the inner upper plate 2 becomes the tip of the bottom plate 3. The metal conductive needle 12, which is fixed to the inner upper plate 2 with screws 10 and fixed to the needle fixing plate 11 made of a conductor, is attached to the bottom of the V-shaped groove 7. This is to apply a force to break the insulation coating of the inserted core wire and bring it into contact with the core conductor. 13 is an internal lead wire, and a conduction needle 12
A screw 10 for fixing the needle fixing plate 11 to which the needle fixing plate 11 is fixed is connected to a screw 14 attached to the bottom plate 3. 15 is an external lead wire whose one end is connected to the screw 13. Reference numeral 16 denotes an opening/closing element which is wide at the lower part, and the wide part fits into the grooves on both sides of the outer upper plate 1 and slides in the front-rear direction on the rear bottom wall of the outer upper plate 1, so that the opening/closing element 16 can be moved in the front-rear direction. As shown in FIG. 3, the lower part of the front end forms a slope, and a notch into which the front end of the inner upper plate 2 fits is formed at the end of the slope. Reference numeral 17 denotes a switch position fixing spring inserted into a recessed notch formed at both rear ends of the outer upper plate 1,
The tip part is formed with an arcuate engagement part that can fit into the recesses 18 formed at the front and rear of the opening/closing element 16, and the base end is clamped between the recessed part and the fitting piece 19 that closes the recessed part. Supported.

In FIG. 1, three conductive needles 12 are arranged so as to be shifted by a small distance in the row direction, and the conductive needles 12 are arranged so as to be offset by a small distance in the row direction, so that the conductive needles 12 can be used to prevent slight waviness of the core wire inserted along the V-shaped groove 7.
I showed an example of how to eliminate misses, but
The number of conduction needles 12 is not limited to the above number, and may be one or another number.

Next, the operation of the gripping tool of the present invention in use will be explained. First, when the switch 15 is pushed and moved in the direction of the arrow shown in FIG. 2, the slope of the switch 15 comes into contact with the rear end edge of the inner upper plate 2 and is pushed down.
Finally, the edge portion is fitted into a notch formed at the rear end of the slope of the opening/closing member 16 and is locked. At the same time, the tip arc-shaped portion of the switch fixing spring 17
The position of the switch 16 is fixed by fitting into the rear recess 18 of the switch. At the same time as the rear part of the inner upper plate 2 is pushed down, the conduction needle 12 in the front part of the upper plate 2 is pulled up away from the V-shaped groove 7 of the bottom plate 3. Further, at that time, the wire sheathing penetration spring 9 contracts and accumulates a force for penetrating the wire sheathing. Next, when the rear part of the outer upper plate 1 and the rear part of the bottom plate 3 are grasped, the rear end side of the outer upper plate 1 is pushed down with respect to the bottom plate 3, centering on the must-stick 5.
On the contrary, the front end of the outer upper plate 1 and the front end of the bottom plate 3 are separated to open the mouth. Therefore, the core wire is inserted through this opening and is placed along the bottom of the V-shaped groove 7 of the bottom plate 3. At this time, the core wire fixing spring 6 is compressed. After confirming that the core wire has entered along the bottom of the V-shaped groove 7 by checking the parts of the bottom plate 3 where the V-shaped groove 7 is visible on both sides of the outer upper plate 1, remove the back of the outer upper plate 1 and the bottom plate 3 that were being held. Release the ends. The front end portions of the outer upper plate 1 and the bottom plate portion 3 tend to close due to the force of the spring 9, and the presser rubber 8 fixes the core wire inserted in the V-shaped groove 7 in the V-shaped groove 7 so as not to move. Next, when the switch 16 is pulled in the direction of the arrow from the state shown in FIG. The tip of the conductive needle 12 penetrates the insulation coating of the core wire contained therein, and the tip of the conductive needle 12 comes into contact with the core conductor to establish continuity. Opener 16
When the switch is pulled rearward in this manner, the arcuate tip end of the switch fixing spring 17 is pushed into the rear recess 18 of the switch 16.
Fits in. While electrical conduction is established with the core wire conductor, the presser rubber 8 elastically holds the core wire in the V-shaped groove 7.

As described above, the gripping tool of the present invention can insulate the core wire by simple and easy operations such as moving the switch, gripping and releasing the grip between the outer top plate and the bottom plate, and inserting the core wire into the V-shaped groove. It is possible to reliably establish continuity with the core wire using the conduction needle without removing the coating.
Since conduction is achieved by penetrating the insulation coating with such a conduction needle, there is no fear of cutting the core wire, and there is no possibility of causing major damage to the insulation coating. Furthermore, since the core wire is held in the V-shaped groove by the core wire presser rubber, it has many effects such as being able to maintain stable conduction even in the face of some impact.

[Brief explanation of the drawing]

1 to 4 show embodiments of the present invention,
Figure 1 is a plan view, Figure 2 is a side view, Figure 3 is a
The sectional view taken along the line A-A in the figure and FIG. 4 are perspective views. 1...Outer top plate, 2...Inner top plate, 3...Bottom plate, 5...Required rod, 6...Wire fixing spring, 7...
V-shaped groove, 8... Core wire pressing rubber, 9... Spring for penetrating the core wire sheathing, 12... Needle for conduction, 16... Opening/closing element.

Claims (1)

[Scope of utility model registration request] The outer upper plate and the inner upper plate are each pivotally connected to the bottom plate by a shaft at the intermediate portion of each plate so as to face each other, and the front ends of the outer upper plate and the bottom plate are mutually connected, and the inner upper plate and the bottom plate are connected to each other by a shaft. A V-shaped groove for inserting the core wire is provided at the front end of the bottom plate, and a V-shaped groove is provided at the front end of the inner upper plate opposite to the V-shaped groove. A conductive needle is provided for penetrating the insulation coating of the core wire inserted into the V-shaped groove, and a conductive rubber is provided on the front end of the outer upper plate at a position opposite to the V-shaped groove, On the rear end side of the plate, there is an opening/closing device that is guided by the outer upper plate and moves in the front-rear direction of the outer upper plate, and in the forward movement position operates to push down the rear end of the inner upper plate and pull up the conduction needle. A conductive gripping tool characterized by having a child.