JP2001186619A - Wire coating stripper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire coating stripper wherewith when the coating on a heater wire or sensor wire with a thin foil-like body wrapped therein is stripped, the wire is properly guided into between an upper edge and a lower edge and set there, the coating is stripped with the center of the wire aligned with the center of the edge portion, and the thin foil-like body in the wire will not be cut. SOLUTION: A pliers-type wire coating stripper comprises a pair of handle portions 11 positioned below a coupling fulcrum 10, and a pair of holding members that are positioned above the coupling fulcrum and opened and closed to the left and right according to the closing and opening of the handle portions 11. One of the holding members is provided with a pair of clamp portions 9 vertically opposed to each other, and the other holding member 30 is provided with an edge portion comprising a pair of an upper edge 15 and a lower edge 16 for cutting wires, positioned at its upper and lower parts. The stripper is provided with butting portions that are formed on a projected member and a recessed member which vertically engage together the upper edge 15 and the lower edge 16 of the edge portion, the recessed portion forming a guide whose width is slightly greater than the diameter of a wire 8 to be stripped, and stop the upper edge 15 and the lower edge 16 in contact with each other in the vertical direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire peeler used for peeling an outer coating of a heater wire or a sensor wire mainly used in an electric carpet or an electric blanket.

[0002]

2. Description of the Related Art Conventionally, wires such as wiring wires, lead wires, and optical fibers used for electronic devices have their core wires covered with an outer coating. Japanese Utility Model Application Laid-Open No. 56-806 relates to a wire stripper used for stripping the outer coating of an electric wire.
22 and the invention of Japanese Utility Model Application Laid-Open No. 60-18011 relating to the invention of JP-A-60-47213 or a mechanism for peeling a wire such as a lead wire for wiring of an electronic device, and for an optical fiber used for peeling a coating of an optical fiber. The invention of Japanese Patent Application Laid-Open No. 9-113734 relating to a stripper is known.

On the other hand, as shown in FIG. 9, for example, as shown in FIG. 9, a heating wire 2 is wound around an outer periphery of a core wire 1 in a spiral manner, and a nylon layer 3 is provided thereon. And a short-circuited conductor 4 wound spirally and covered with an outer coating 5. There is no dedicated wire peeler for such a heater wire or sensor wire. When the skin is stripped using the wire stripper as described above, play is provided between the upper blade 6 and the lower blade 7 as shown in FIG. The hole diameter between the respective blades changes due to the displacement between the upper blade 6 and the lower blade 7 shown in FIG. 9, and the heating conductor 2 which is an aggregate of fine wires shown in FIG. There is a problem that a short circuit conductor 4 is foil-like body have is cut by misalignment between the blades.

When an operator sets the wire to be stripped on the conventional wire stripper obliquely, the diameter of the hole cut by the upper blade 6 and the lower blade 7 becomes substantially small, and the cutting of the foil-like body is performed. Further, as shown in FIG. 12, the center line of the wire 8 is not horizontal but is inclined, and the wire 8 to be cut in this state is heated by the clamp portion 9 made of a pair of vertically opposed clamp members. When stripping one side of the wire with the upper blade 6 and the lower blade 7 above the clamp, since the center of the wire 8 is not horizontal, pull strongly on one side (the lower side in FIG. 12) at the time of peeling. There is a risk that the foil may be cut into the foil and cut.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a method for setting and guiding a wire between an upper blade and a lower blade when peeling a heater wire or a sensor wire in which a thin foil is wound. The present invention provides a wire peeler in which the wire is peeled in a state where the center of the wire is aligned with the center of the upper blade and the lower blade, and the foil wound around the wire is not cut.

[0006]

According to the present invention, there is provided a pair of grips which open and close below and above a connecting fulcrum provided with a pair of handles which can be opened and closed, in accordance with the opening and closing of the handles. One of the holding members is provided with a clamp portion formed of a pair of vertically opposed clamp members, and the other holding member is formed of a pair of upper and lower blades for cutting and covering the wire. A wire stripper provided with a convex member and a concave material in which an upper blade and a lower blade of the blade portion are fitted up and down, and the concave groove of the concave material is peeled. While forming a guide having a width slightly larger than the diameter,
It consists of a wire peeler provided with an abutting part for stopping the upper blade and the lower blade in contact with each other in the vertical direction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. This wire peeler is disclosed in Japanese Utility Model Application Laid-Open No. S59-47213 and JP-A-9-113.
The pliers type is almost the same as the wire stripper in the invention of No. 734, that is, FIGS.
As shown in the figure, a connection fulcrum 10 is provided at the center of the pliers type wire stripper.
Is provided with a pair of handle portions 11 which can be opened and closed right and left with the connection fulcrum 10 as a fulcrum. In the description, the upper and lower expressions only refer to the upper and lower parts of the drawing, and the upper part may be expressed as one and the lower part may be expressed as the other.

A spring material 12 is provided between the left and right handle portions 11.
FIG. 1 shows a state before the peeling of the wire 8 when the handle 11 is opened, and by half-holding and pressing the handle 11 to the state of the arrow P in FIG. Only the outer coating 5 of the wire 8 is cut, and then the handle 11 in FIG.
Is further strongly pressed inward, so that the outer coating 5 cut in FIG. 2 can be extracted to the right side in the figure, and the wire stripping is performed by a series of these operations.
By releasing the handle from the handle 11 in the state of FIG.
The handle 11 is automatically returned to the state shown in FIG. 1 by the elastic force of the spring member 12 after the clamp 9 is released.

In view of the above, a pair of holding members 30 are provided above and below the connecting fulcrum 10 to open and close according to the opening and closing of the handle portion 11, and one of the holding members 30, ie, the left side in FIG. The holding member is provided with a clamp portion 9 composed of a pair of clamp members 13 and 14 vertically opposed to each other.
As shown in the figure, the upper clamp member 13 is moved up and down with respect to the lower fixed clamp member 14 by the handle 11, thereby clamping the wire 8 for peeling.

Next, the other gripping member 30, that is, the gripping member 30 on the right side in the figure, is a blade portion including a pair of upper blades 15 and lower blades 16 for cutting and covering the wire covering vertically. Only the wire coating to be peeled off by the blade is cut.

Therefore, in the wire peeling device of the present invention, as shown in FIGS. 5 and 6, the upper blade 15 and the lower blade 16 of the blade portion for cutting and covering the wire are vertically fitted to each other. The groove is provided in the member 17 and the concave member 18, and the concave groove of the concave member 18 has a width slightly larger than the wire diameter of the wire 8 to be peeled, and a guide for setting the wire 8 in the concave groove. Is formed.

Further, as shown in FIGS. 7 and 8, an abutting portion 19 for correctly stopping the upper blade 15 and the lower blade 16 in a state where the upper blade 15 and the lower blade 16 abut against each other is provided. However, in this embodiment, it is provided on the lower blade 16 side having the concave member 18.

In the wire peeler of the present invention having the above structure, the wire 8 to be peeled is connected to the wire peeler shown in FIG.
Clamp part 9 composed of clamp members 13 and 14
In this state, the center of the blade portion composed of the upper blade 15 and the lower blade 16 and the center of the wire 8 are aligned with each other, so that the wire 8 is strongly applied to one side during peeling as in the conventional example shown in FIG. The blade portion does not bite into the foil-like body of the heat-generating conductor 2 or the short-circuit conductor 4 due to being pulled and is not cut.

The upper blade 15 and the lower blade 16 form a wire 8
When the outer coating 5 is cut, the upper blade 15 and the lower blade 16 correctly stop at the abutting portion 19, so that there is no danger of cutting the above-mentioned foil.

In this embodiment, as shown in FIG. 9, in addition to providing the upper blade 6 and the lower blade 7 for peeling the outer coating 5 of the heater wire, a nylon layer having a smaller diameter than the outer coating 5 is provided. FIG. 7 for peeling 3
The upper blade 20 and the lower blade 21 shown in FIG.
It is provided on the convex member 22 and the concave member 23 similar to the lower blade 16 and can be used as a dedicated automatic peeler for the heater wire shown in FIG.

Further, according to the present invention, the lower blades 16 and 21 are provided in the respective concave grooves of the concave members 18 and 23, and the width of the concave grooves is slightly smaller than the respective diameters of the outer coating 5 and the nylon layer 3 of the wire for peeling. The concave groove guides the outer periphery of the wire to be peeled, so that the wire 8 is not set at an angle, and the tension is applied even when a tensile force is applied to the wire 8 as shown in FIG. It is fixed to the outer periphery, and cutting of the foil can be prevented.

Further, since the blade and the guide part are concentric arcs and hold the outer skin with the upper blade and the lower blade, and the center of the heater wire is cut out by the blade part, the center is not displaced.

In this embodiment, a dedicated device for a heater wire is described. However, a primary conductor is wound around a core wire, a temperature-sensitive layer is covered on the primary conductor, and a secondary conductor is further wound around the core wire. The wire peeler of the present invention can be effectively applied to a sensor wire covered with a coating.

[0019]

As described above, according to the wire peeling device of the present invention, particularly when peeling a heater wire or a sensor wire around which a thin foil is wound, there is a gap between the upper blade and the lower blade. We can guide and set the wire correctly,
The skin is peeled when the center of the wire is aligned with the center of the upper blade and the lower blade, and the upper blade and the lower blade are stopped in the correct state and the skin is peeled off. High efficiency and high quality peeling work can be performed without cutting the body.

[Brief description of the drawings]

FIG. 1 is a side view of a wire peeler according to an embodiment of the present invention, in which a wire is set.

FIG. 2 is a side view of a state in which the handle is gripped and pressed from the state of FIG.

FIG. 3 is a side view of a state in which the handle is further strongly gripped and pressed from the state of FIG. 2 to extract a cut wire cut;

FIG. 4 is an enlarged side sectional view of a main part of a clamp portion and a blade portion in the state of FIG. 2;

FIG. 5 is a front view of a main part of the blade section in the AA direction of FIG.

FIG. 6 is an enlarged perspective view of a main part of FIG. 5;

FIG. 7 is an enlarged front view of a main part in a state where the wire of FIG. 1 is set in a concave groove portion.

FIG. 8 is an enlarged front view of a main part in a state at the time of wire cutting in FIG. 2;

FIG. 9 is a side view of a main part in a state where a heater wire to be peeled is partially broken.

FIG. 10 is a main part side view showing a state in which a hole diameter changes due to a shift between an upper blade and a lower blade by a conventional wire stripper.

FIG. 11 is a front view of a main part of FIG. 10;

FIG. 12 is a side sectional view of a main part showing a state in which each center of a clamp part and a blade part by a conventional wire stripper is not aligned.

[Explanation of symbols]

 9 Clamping part 10 Connecting fulcrum 13 Clamping material 14 Clamping material 15 Upper blade 16 Lower blade 17 Convex member 18 Concave material 19 Abutting part 20 Upper blade 21 Lower blade 22 Convex member 23 Concave material 30 Holding member

Claims (1)

[Claims] 1. A pair of holding members, which are opened and closed on the lower side and above and below a connecting fulcrum provided with a pair of openable and closable handle portions in response to opening and closing of the handle portions. The member includes a pair of upper and lower clamping members formed of a pair of clamp members, and the other holding member includes a pair of upper and lower blades formed of a pair of an upper blade and a lower blade for cutting and covering a wire. Wherein the upper blade and the lower blade of the blade portion are provided on the convex member and the concave member which fit vertically, and the concave groove portion of the concave member has a width slightly larger than the wire diameter of the wire to be peeled. A wire peeler provided with an abutment for forming a guide and stopping the upper blade and the lower blade in contact with each other in the vertical direction.