JPS6110262Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an insulated wire that is improved so that the sheathing can be easily stripped off.

Insulated wires are used by stripping off the insulation coating at the terminals. For this reason, conventionally, a separator film has been interposed between the stranded wire conductor's covering and the conductor so that the insulator covering can be easily peeled off.

This will be explained with reference to FIGS. 1 and 2.

1 is a conductor, 2 is a film, 3 is an insulator,
It is preferable that the insulator 3 can be removed by a single stripping operation during terminal processing. However, as shown in FIG. 1, the film 2 could not be completely cut off and had to be removed later with a fingertip. This phenomenon results in an increase in man-hours when a stripper is used. Moreover, as shown in FIG. 2, the cut cross section of the insulator 3 was not cut smoothly and often had irregularities.

The present invention was developed in view of the above situation, and the separator film can be cut to the same length as the insulator at the same time as the insulator is stripped, leaving the film behind, and the purpose is to provide an insulated wire. This is what I did.

The insulated wire of the present invention has a separator film provided between the conductor and the insulating coating around the conductor, which has irregularities or convexities or convexities that can be easily cut in a direction perpendicular to the longitudinal direction at predetermined pitches in the longitudinal direction. It is provided with a peel-off section consisting of a strong and weak section in which cuts and the like are formed.

Hereinafter, an embodiment of the insulated wire of the present invention will be described with reference to FIGS. 3 and 4, in which the same parts as those of the prior art are denoted by the same reference numerals. As shown in FIGS. 3 and 4, the film 2 is formed into an uneven shape with peel-off cut portions 4 provided in the longitudinal direction, and the recesses where the peel-off cut portions 4 are formed are less than half the thickness of the convex portions. It is formed to a thickness of .

The uneven portions are formed at predetermined pitches in the longitudinal direction so that the insulator 3 can be cut at any portion thereof. The material of the film 2 is a plastic film such as a polyester film or a nylon film. In particular, insulators such as polyethylene-based rubber, plastic copolymers, or crosslinked polyethylene have good adhesion to nylon films.

Since the strong and weak parts of the film 2 consisting of the above-mentioned uneven parts are regularly arranged at predetermined pitches as shown in FIG. 3, when the insulator 3 is peeled off, the insulator 3 The film 2 is also peeled off from the partial peeling cut section 4 closest to the cut section of the insulator 3. In this case, since the stripping section 4 is cut in a straight line at right angles to the longitudinal direction, the insulator 3 is also cut at the same time as the film 2, and a sharp acute-angled cross section can be obtained. Therefore, it is no longer necessary to remove the film remaining on the peeled portion of the insulator 3 with your fingertips, as in the conventional case, and the number of steps required for stripping off the coating can be reduced. Furthermore, efficiency can be increased without any rework, and since no film remains, terminal attachment can be completed perfectly.

In the above embodiment, the stripping cutting part 4 is provided in a recess formed thinner than the convex part of the concavo-convex part, so that when the insulation coating is stripped off, the film can be cut and removed at the same time so that no film remains. I mentioned the case where the film is made with no unevenness,
Even if peeling sections are provided in which cuts are made at predetermined pitches in the longitudinal direction of the film, the same effect as in the above embodiment can be obtained.

As described above, in the insulated wire of the present invention, the film is cut to the same length as the insulator at the same time as the insulation is stripped, and the film is not left behind. This has the effect of reducing the number of man-hours required for the work.

[Brief explanation of the drawing]

1 and 2 are perspective views of a conventional insulated wire after the coating is stripped off, FIG. 3 is a perspective view of a film of an embodiment of the insulated wire of the present invention, and FIG.
FIG. 5 is a cross-sectional view of the insulated wire wrapped with the film shown in the figure, and FIG. 5 is a perspective view of the insulated wire shown in FIG. 4 after the insulation coating is stripped off. 1: Conductor, 2: Film, 3: Insulator, 4: Peeling and cutting part.

Claims (1)

[Scope of utility model registration request] In an insulated wire in which a separator film is provided between a conductor and an insulating coating on the outer periphery of the conductor, the film is arranged at predetermined pitches in the longitudinal direction of the insulated wire in a direction perpendicular to the longitudinal direction of the insulated wire. An insulated wire characterized in that it has a peel-off section consisting of a strong and weak section formed by unevenness or notches that can be easily cut.