JP2001298822A - Wire stripper for covered electric wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a covered electric wire stripper of simple construction which makes it possible for everyone to strip off the covering of a covered electric wire easily over a specified length even at a narrow spot without using a cutting tool. SOLUTION: The stripper is composed of a pair, upper and lower, of receiving rollers 2, 2 held by a frame 1 in a freely rotatable way, a slider 3 fitted to the frame 1 so as to be able to move in directions perpendicular to the axes of the receiving rollers 2, 2, a pressing roller 4 which is held by this slider 3 in a freely rotatable way and holds the covered electric wire 7, a platy cutter 5 fitted to the slider 3, and a means 6 for moving the slider 3. The blade edge of the cutter 5 is directed approximately in the tangential direction to the covered wire 7, and fitted slant so as to cut its covering 7d by its thickness equivalent. Circular blades 8, 8 for cutting the covering 7d of the covered wire 7 in its circumferential direction are fitted on the peripheral surfaces of both ends of one of the receiving rollers 2, 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stripping tool used to cut and remove a coating of a coated electric wire such as a coaxial cable by a predetermined length.

[0002]

2. Description of the Related Art Generally, a ring-shaped conductor 7c is arranged around a core wire 7a via an insulator 7b as shown in FIG. When connecting a branch line, the covering of the electric wire is cut and removed by a predetermined length with an electric knife or the like. But,
Because the coating of such a coaxial cable is strong and hard, it must be cut around by rotating around the cable. In particular, the coating stripping operation in a narrow space such as a common groove requires a lot of trouble. Also, when drilling a hole in the peripheral surface of the insulated wire 7 to connect the branch wire to the core wire 7a, the drilling work is difficult because the insulated wire is unstable.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method for stripping a covered electric wire over a predetermined length without using a knife or the like. The main purpose is to provide a tool with a simple configuration.

[0004]

In order to achieve the above object, the present invention takes the following technical measures. That is, in the wire stripper according to the present invention, a pair of upper and lower receiving rollers -2, 2 rotatably held by the frame 1, and a direction orthogonal to the axis of the receiving rollers 2,2. A slider 3 attached to the frame 1 so as to be able to move; a pressing roller 4 rotatably held by the slider 3 and holding a covered electric wire 7 between the receiving rollers 2; 3 comprises a plate-shaped cutter blade 5 having a cutting edge of a predetermined width, and means 6 for moving the slider 3, wherein the cutting edge of the cutter blade 5 is substantially tangential to a coated electric wire 7. And the cover 7d of the covered electric wire 7 is cut in the circumferential direction on the outer peripheral surface of both ends of one of the receiving rollers 2 and 2 in such a manner that the cover 7d bites by the thickness of the cover 7d. That has a structure in which circular blade 8, 8 are provided.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An intermediate portion between the receiving rollers 2 and 2 is formed to have a small diameter, and a space formed between the small diameter portions and a peripheral surface of the covered electric wire 7 are arranged as shown in FIG. It is good to form so that the drill blade A can be inserted. Thereby, at the time of peeling off the covering of the electric wire, a drilling operation for inserting and connecting the branch line to the core wire 7a can be easily performed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. In the drawing, reference numeral 1 denotes a frame, and a pair of upper and lower receiving rollers-2, 2 are attached to the frame 1.
Are rotatably held. In addition, in the above-mentioned frame 1,
A slider 3 is provided so as to be movable via a moving means 6 along a direction orthogonal to the axis of the receiving rollers 2 and 2.
Is attached. In the present embodiment, the slider 3 is formed so as to be movable along the guide groove 1a of the frame 1, and the screw shaft 6b is screwed by turning the handle 6a, and the slider 3 is moved to the receiving rollers 2 and 2. It is formed so that it can push forward.

Further, a pressing roller 4 is attached to the slider 3.
And a plate-shaped cutter blade 5 having a blade edge having a predetermined width. When the slider 3 is moved to a predetermined position, the holding roller 4 is
2 is held by the slider 3 so as to be rotatable so as to hold the insulated wire 7 between the wire 3. When the cutter blade 5 moves the slider 3 to a predetermined position,
The cutting edge is directed substantially tangentially to the insulated wire 7,
And it is attached so as to be inclined so as to bite by the thickness of the coating 7d. This cutter blade 5 is exchangeably attached to a cutter blade base 9 fixed to the slider 3. The inclination angle of the cutter blade 5 is preferably 30 degrees with respect to the horizontal line.

On one of the receiving rollers 2, 2, for example, sharp circular blades 8, 8 are provided on the outer peripheral surfaces of both ends of the upper receiving roller 2 to cut the coating 7 d of the coated electric wire 7 in the circumferential direction. Have been. An intermediate portion between the receiving rollers 2 and 2 is formed to have a small diameter, and an opening 1b for attaching a drill guide G for guiding and holding the drill blade A through the wall plate of the frame 1 facing the small diameter portion is provided. Is provided.

The overall size of this coating stripper can be about 80 mm in length and width and about 120 mm in depth, and can be formed in a size that can be put on the palm of a hand. It is preferable that the coated electric wire 7 such as a coaxial cable to be separated by the coating stripper has a diameter of 10 to 20 mm.

In using the above-mentioned coating stripping tool,
First, as shown in FIG. 1, the coated electric wire 7 to be peeled is placed between the receiving rollers 2 and 2 and the pressing roller 4 so that the handle 6
a to move the slider 3 forward,
The holding wire 4 holds the covered electric wire 7. In this state, when the stripper is manually rotated around the insulated wire 7, the sheath 7 d of the insulated wire 7 is cut at a predetermined pitch by the circular blades 8, 8. The partial coating 7d is simultaneously peeled off by the cutter blade 5 as shown in FIG.

After the coating 7d is peeled off, as shown in FIG. 4, the drill guide G protrudes and is fixed between the small diameter portions of the upper and lower rollers 2, 2 through the opening 1b of the frame 1.
As a guide, a drilling process for inserting and connecting a branch line to the core wire 7a can be performed at the same time through the drill blade A on the peripheral surface of the insulated wire 7. In this case, the insulated wire 7 can be stably held by the insulated stripper, so that the drilling can be easily performed.

FIG. 6 is a view showing the structure of another embodiment.
FIG. 6 shows a structure of a portion equivalent to FIG. 4 shown in the first embodiment. In the apparatus of this embodiment, the means for perforating the insulated wire 7 is such that the insulated wire 7 is perforated by removing the center position in the tangential direction. In the apparatus shown in this embodiment, the slider 3 is moved in the front-rear direction by the rotation of the screw shaft 6b connected to the handle 6a.
And a screw hole screwed with the screw shaft 6b. Other structures are the same as those of the first embodiment.

Although the representative embodiment of the present invention has been described above, the present invention is not necessarily limited to the above-described embodiment structure, but may be appropriately changed within a range having the constituent requirements and the effects. Of course, it can be implemented.

[0014]

Since the present invention is constructed as described above, it is possible to easily cover a coated wire which is difficult to peel over a predetermined length without using a manual knife such as an electric knife. In addition, it is possible to safely remove and remove, which has a great effect that the rationalization of the branch connection work in a narrow area such as a common groove can be improved.

According to the second aspect of the present invention, there is an effect that drilling by a drill for inserting and connecting a branch line to a core wire of a covered electric wire can be easily performed.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view showing an embodiment of a coating stripper according to the present invention.

FIG. 2 is a schematic plan view of the coating stripping tool.

FIG. 3 is a partial cross-sectional side view showing a use state of the coating stripping tool.

FIG. 4 is a partial cross-sectional side view showing a use state of the coating stripping tool as in FIG. 3;

FIG. 5 is a sectional view showing an example of a covered electric wire to be peeled.

FIG. 6 is a partial cross-sectional side view of a portion corresponding to FIG. 4 showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Receiving roller 3 Slider 4 Holding roller 5 Cutter blade 6 Moving means 7 Insulated wire 7a Core wire of insulated wire 7d Coating of insulated wire 8 Circular blade A Drill blade

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Takeshi Kagida 1-3-5, Tsurumi, Tsurumi-ku, Osaka-shi F-term in Nichifu Terminal Industry Co., Ltd. 3C061 AA05 AA35 BA06 BA11 BA24 BA29 EE22 5G353 AA03 AC02 CA01 CA02 EA12

Claims (2)

[Claims] 1. A pair of upper and lower receiving rollers (2) and (2) rotatably held by a frame (1), and said receiving rollers (2) and (2).
A slider (3) attached to the frame (1) so as to be movable in a direction perpendicular to the axis of (2), and the receiving roller rotatably held by the slider (3).
Pressing roller for holding the insulated wire (7) between (2) and (2)
(4), a plate-like cutter blade (5) having a blade of a predetermined width attached to the slider (3), and a moving means (6) for moving the slider (3), the The cutter blade (5) is attached such that its cutting edge is directed substantially tangentially to the coated electric wire (7), and is inclined so as to bite by the thickness of the coating (7d).
Circular blades (8), (8) are provided on the outer peripheral surface at either end of either (2) or (2) to cut the covering (7d) of the covered wire (7) in the circumferential direction. Coating stripper. 2. An intermediate portion between the receiving rollers (2) and (2) has a small diameter, and a space formed between the small diameter portions is
An insulated stripping tool for an insulated wire formed so that a drill blade (A) can be inserted into a peripheral surface of the insulated wire (7).