JP3153951B2 - Stripping tool for wire coating - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a peeling tool for covering an electric wire, and more particularly to a peeling tool capable of continuously peeling and removing a coating layer at a tip portion of an insulated wire for a predetermined length.

[0002]

2. Description of the Related Art Conventionally, wire stripping has been done manually using a knife or the like. In recent years, however, it has been required to use indirect hot-line work in electrical work. There is a demand for the development of a peeling tool for indirect hot-line work, which can be remotely operated via an operation rod and an arm of a manipulator vehicle.

[0003] As a conventional peeling tool, there is, for example, a structure disclosed in Japanese Utility Model Publication No. 58-18414. The cutter for peeling and removing the coating layer had to be rotated with the other hand.
Further, there is a structure disclosed in Japanese Utility Model Registration Application No. 77923 in 1987, but since the clamp mechanism for gripping the electric wire and the peeling mechanism for the electric wire coating are independent of each other, a long tool is used. Had become. For this reason, these tools are difficult to handle and operate, and are used for so-called indirect hot-line work in which an operator at a position away from the electric wire operates the insulated operation rod by manipulating the manipulator vehicle at hand. I couldn't do that.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an insulated operating rod and a manipulator which can be easily peeled off at a hand side of a vehicle, and can be used in a rectangular or bent wire tip. An object of the present invention is to provide a peeling tool for indirect hot-line work, which can perform a peeling operation corresponding to a part and can arbitrarily adjust a peeling length. Further, the present invention provides a peeling tool which can perform a peeling operation even when the electric wire coating layer is made of a soft material.

[0005]

That is, an electric wire covering peeling tool according to the present invention can swing on an operation shaft, a frame receiver which rotates in conjunction with the operation shaft, and a knob of the frame receiver. And the electric wire piece is installed in the
An electric wire insertion hole in which a spiral projection is formed on the inner surface, and a blade body for projecting into the electric wire insertion hole to peel off and remove the coating layer of the electric wire, and on the opposite electric wire insertion side of the electric wire insertion hole, It is characterized by having a stopper for adjusting the stripping length of the electric wire.

[0006] The electric wire piece rotates with a frame receiver that rotates in conjunction with the operation shaft, and has a function of inserting the electric wire and a peeling function of peeling and removing the coating layer of the electric wire. That is, as a function of inserting an electric wire, a spiral projection is formed on the inner surface of the electric wire insertion hole, and when a wire tip is pressed at the entrance of the electric wire insertion hole and the electric wire piece is rotated by driving the operating shaft, a spiral is formed. The projections abut against the electric wire, and an axial thrust is generated by the frictional force so that the electric wire can be automatically inserted while being drawn.
Further, as a peeling function, a blade protruding into the electric wire insertion hole moves while rotating around the outer periphery of the inserted electric wire, and continuously peels and removes a coating layer of the electric wire.

This electric wire piece is swingably mounted on a frame receiving knob so that the direction of the wire insertion hole can correspond to a right-angled and bent wire tip. I have.

Further, the peeling length of the wire covering layer can be adjusted by a stopper provided on the side opposite to the wire insertion side of the wire insertion hole. That is, the wire inserted while the coating layer is peeled off comes into contact with the inner surface of the stopper, whereby the thrust applied to the wire is stopped, and the coating layer is circumferentially cut off by the blade of the wire piece, and the predetermined force is applied. It comes to be peeled to the length.

Such an electric wire covering peeling tool can be easily operated by attaching its operating shaft to an insulated operating rod or an arm of a manipulator vehicle.

[0010]

Next, an embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show the entire structure of a peeling tool. An operating shaft 2 is rotatably provided at a lower end of a tool main body 1, and the rotation of the operating shaft 2 is transmitted via bevel gears 4 and 5. The electric power is transmitted to the horizontal frame receiver 3 in the horizontal direction. The frame receiver 3 is provided with an electric wire top 8 loosely provided by a knob 9. Reference numerals 6 and 7 denote a lid and a housing for assembling to the tool body 1 with the frame receiver 3 rotatable.

The electric wire piece 8 is integrally provided with an electric wire insertion mechanism and a peeling mechanism. As shown in FIGS. 3 and 4, the electric wire insertion mechanism has an electric wire insertion hole 10 at the center of the electric wire piece 8, and a spiral projection 11 is formed on the inner surface thereof. By pressing the distal end portion of the electric wire W, the coating layer a of the electric wire W comes into contact with the spiral projection 11 and the electric wire piece 8 is rotated, so that an axial thrust is generated by frictional force and the electric wire W is It can be automatically inserted into the insertion hole 10.

As shown in FIGS. 3 and 4, as the peeling mechanism, a cutting blade 12 and a cutting blade 13 serving as blades for peeling and removing the coating layer a of the electric wire W from the electric wire piece 8 have cutting edges. The cutting blade 12 and the cutting blade 13 rotate around the wire W to peel off and remove the coating layer a of the wire W when the wire piece 8 is rotated. It has become. In addition, depending on the material of the coating layer a of the electric wire W, only the cutting blade 12 is usually used, and in the case of a soft material, both the cutting blade 12 and the cutting blade 13 shown in FIG. This enables peeling of the coating layer a of the electric wire W.

The peel length of the electric wire W is determined by the inner surface of the stopper 14 attached to the tool body 1 from the side of the cutting blade 12 of the electric wire piece 8, and an arbitrary peel length is set by changing the stopper 14. It is possible.

As shown in FIG. 1, an electric wire piece 8 having an electric wire insertion mechanism and a peeling mechanism is swingably mounted on a knob 9 of a frame receiver 3 so as to be swingable. The direction of the electric wire insertion hole 10 can be changed corresponding to the tip of W. The electric wire top 8 is configured to be detachable, and a change in the electric wire diameter can be easily handled by replacing the electric wire top 8.

Next, the use of the peeling tool described above will be described with reference to FIGS. First, as shown in FIG. 1, the distal end of the electric wire W is brought into contact with the entrance of the electric wire insertion hole 10 of the electric wire piece 8 provided in the tool body 1. In this state, the operation shaft 2 is rotated, and the tip of the electric wire W is pushed. By the rotation of the operation shaft 2, the wire piece 8 rotates from the frame receiver 3 via the knob 9. As the wire piece 8 rotates, the spiral projection 11 of the wire insertion hole 10 rotates while abutting on the surface of the wire W, so that the wire W is formed by the frictional force between the spiral projection 11 and the wire W on the tool body 1 side. A thrust to push is generated. Then, as shown in FIG. 5, the coating layer a of the electric wire W is peeled and removed while being spirally cut by the cutting blades 12 and 13.

Thus, the rotation of the electric wire piece 8 causes the electric wire W to rotate.
When the wire W abuts against the inner surface of the stopper 14 provided on the tool body 1 while pushing the wire in the axial direction, even if the wire piece 8 rotates, it cannot move in the axial direction. The electric wire piece 8 rotates in a fixed position with respect to the electric wire W, and the cutting blade 12 and the cutting blade 13 cut the coating layer a of the electric wire W in a circumferential shape, and the coating that has been peeled continuously in a spiral shape. The layer a can be cut off (FIG. 5). Therefore, the electric wire W
Is determined by the distance from the position where the wire piece 8 comes into contact with the cutting blade 12 to the time it comes into contact with the inner surface of the stopper 14 of the tool body 1, and this distance is determined by the distance between the stopper 1
The peeling length can be freely set by the fixing position of 4 or the replacement of the stopper 14.

In the peeling tool described above, an electric wire insertion mechanism and a peeling mechanism are integrated with the electric wire piece 8,
The stopper 14 for controlling the peeling length is detachably attached to the tool body 1 so that it can easily cope with the change of the wire diameter and the peeling length. The wire W is loosely provided by the knob 9 so as to be able to cope with the bent shape of the electric wire W.

[0018]

According to the peeling tool of the present invention configured as described above, the coating layer a is peeled off in accordance with the bending state of the electric wire W, and the continuous operation is performed only by rotating the operation shaft 2. , And there is no trouble to operate the clamp mechanism and the peeling mechanism by separate operation mechanisms as in the conventional peeling tool. Therefore, if the peeling tool is attached to the insulated operating rod and the arm of the manipulator vehicle, all the steps of the peeling work can be executed only by rotating at hand, making it extremely excellent as a tool for indirect hot-line work. .

In particular, the tool body 1 can be reduced in size by the electric wire piece 8 in which the electric wire insertion mechanism and the peeling mechanism are integrated, and the electric wire piece 8 is freely mounted on the frame receiver 3 so as to be swingable by a knob. To reduce the working space,
In addition, the peeling operation can be reliably started.

As described above, the peeling tool for covering electric wires according to the present invention can exhibit various features that are extremely practical, such as easy operation and reliable peeling operation.

[Brief description of the drawings]

FIG. 1 is a partially sectional front view showing an embodiment of a peeling tool according to the present invention.

FIG. 2 is a left side view of the peeling tool shown in FIG.

FIG. 3 is a partial cross-sectional front view of an electric wire piece;

FIG. 4 is a left side view of the electric wire piece.

FIG. 5 is a perspective view showing a cutting line of the covered electric wire.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tool main body 2 Operation shaft 3 Frame receiver 4 Bevel gear 5 Bevel gear 6 Lid 7 Housing 8 Wire piece 9 Knob 10 Wire insertion hole 11 Spiral projection 12 Cutting blade 13 Cutting blade W Coated wire a Coating layer

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kenji Tanaka 1-3-8 Shindaka, Yodogawa-ku, Osaka-shi, Osaka Inside Toshin Electric Co., Ltd. (72) Inventor Koji Takasaki 1-3-3, Shindaka, Yodogawa-ku, Osaka-shi, Osaka No. 8 Toshin Electric Co., Ltd. (56) References JP-A-1-91609 (JP, A) JP-A-63-187516 (JP, U) JP-A-6-36317 (JP, U) (58) Field surveyed (Int.Cl. ⁷ , DB name) H02G 1/12 H02G 1/02

Claims (1)

(57) [Claims] 1. An operation shaft, a frame receiver that rotates in conjunction with the operation shaft, and an electric wire piece that is swingably mounted on a knob of the frame receiver, wherein the electric wire piece has a spiral inside. An electric wire insertion hole having a ridge-shaped protrusion, and a blade body for projecting into the electric wire insertion hole to peel off and remove the coating layer of the electric wire. A stripping tool for covering an electric wire, comprising a stopper for adjusting a stripping length.