JPH08264032A - Flat wire - Google Patents

Abstract

PURPOSE: To make the interval between adjacent flat cross-sectional conductors in the region except both end sections larger than that at both end sections by making the interval between adjacent conductors in the region except at least one end section larger than that at one end section. CONSTITUTION: Multiple flat cross-sectional conductors 11 are arranged in parallel so that the interval between the conductors 11 in the region except both ends is made larger than the interval between adjacent conductors 11 at both end sections, and the conductors 11 are covered with an insulating material 12 such as PCV or PE. Slits 13 are formed on the insulating material 12 between the conductors 11 in the region other than both end sections to manufacture a flat wire. The slits 13 are easily machined, and the occurrence of such trouble that part of the conductors 11 is exposed at the time of slit machining can be prevented. When this flat wire is mounted on the flat surface of a desk, it has an excellent bending property in the vertical direction and in the direction parallel with the horizontal plane and perpendicular to the direction of the conductors 11, and a short--pitch wire having a small pith between the conductors 11 at both end sections to be connected to a connector and having high quality is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat wire formed by covering a plurality of rectangular conductors arranged in parallel at predetermined intervals with an insulating material.

[0002]

2. Description of the Related Art In a flat wire, generally, a plurality of conductors arranged in parallel at predetermined intervals are made of polyvinyl chloride (PV).
C), polyethylene (PE), etc. are covered with an insulating material, but since each conductor is entirely covered with an insulating material, this flat wire is placed on a horizontal surface such as a desk. In the above, even if the flexibility in the vertical direction is excellent to some extent, the flexibility in the direction parallel to the horizontal plane and orthogonal to the direction of each conductor is poor, and when it is used as a jumper wire for electronic devices, etc., There is a problem that it is very difficult to handle.

Therefore, as disclosed in, for example, Japanese Utility Model Laid-Open No. 4-6125, it is considered to separate the insulating material between adjacent conductors by slits in the middle portion of the flat wire.

In this way, by separating the insulating materials from each other in the middle portion of the flat wire, it is possible to improve the flexibility in the direction parallel to the horizontal plane and orthogonal to the direction of each conductor. However, since the one disclosed in the above publication uses a so-called round conductor as a conductor, the thickness of the entire wire is increased to make narrow space wiring difficult, and the same disconnection is used as compared with the case where a rectangular conductor is used as the conductor. Even the area is round, it is inferior in flexibility.

Therefore, as shown in FIG. 4, it is considered to use a rectangular conductor 1 as a conductor and to form a slit 3 in an insulating material 2 between adjacent conductors at an intermediate portion to separate the insulating materials 2 from each other. To be In addition, in FIG. 4, the insulating material 2 on the upper surface side is removed at both ends of each rectangular conductor 1 to expose each rectangular conductor 1.

[0006]

However, as shown in Table 1, in order to downsize the flat wire according to the connector size to form a so-called short pitch wire, the width of the flat conductor 1 itself and the space between the flat conductors 1 are reduced. Since the distance between the adjacent rectangular conductors 1 becomes shorter as the pitch of becomes smaller,
It becomes difficult to process the slit 3 in the insulating material 2 between the adjacent rectangular conductors 1, and there is a possibility that defects such as partial exposure of the rectangular conductor 1 occur during slit processing.

[0007]

[Table 1]

Therefore, the present invention has been made in order to solve the above problems, and an object thereof is to make it possible to easily form a slit in an insulating material in an intermediate portion of a short pitch wire.

[0009]

According to the first aspect of the present invention,
In a flat wire formed by covering a plurality of rectangular conductors arranged in parallel at predetermined intervals with an insulating material,
The spacing between the adjacent flat conductors in the area excluding at least one end is made larger than the spacing between the adjacent flat conductors in the one end, and slits are formed in the insulating material between the adjacent flat conductors in the area other than both ends. It is characterized by being formed by.

Further, as described in claim 2, the interval between the adjacent rectangular conductors in the region excluding both end portions may be made larger than the interval between the adjacent rectangular conductors at the both end portions.

[0011]

According to the invention of claim 1, the distance between the adjacent rectangular conductors in the region excluding at least one end is
Since the gap between the adjacent rectangular conductors at this one end was made larger, when forming the slits in the insulating material, the slits were to be applied to the parts with the larger gaps between the adjacent rectangular conductors. It is easy to prevent the occurrence of defects such as a part of the conductor being exposed.

Further, as described in claim 2, even when the interval between the adjacent rectangular conductors in the region excluding both ends is made larger than the interval between the adjacent rectangular conductors at the both ends, the adjacent rectangular conductors are formed. Slitting will be performed on the part with a large interval, and the ease of slitting will not change.

[0013]

1 is a plan view of a first embodiment of the present invention, FIG.
[FIG. 6] is a plan view during manufacturing.

As shown in FIG. 2, when a plurality of flat conductors 11 are arranged, the adjacent flat conductors 11 in a region excluding both ends are arranged.
The parallel conductors 11 are arranged in parallel so that the space between them is larger than the space between the adjacent flat conductors 11 at both ends, and each of the flat conductors 11 arranged in this manner is an insulating material 1 such as PCV or PE.
Then, as shown in FIG. 1, slits 13 are formed in the insulating material 12 between the adjacent rectangular conductors 11 in regions other than the both ends to form a flat wire.

At this time, the insulating material 12 on the upper surface side is removed from both ends of each rectangular conductor 11 to expose each rectangular conductor 11.

By the way, the insulating material 12 may be made of an insulating tape or an extruded resin.

Therefore, according to the first embodiment, the slits are formed on the portion having a large space between the adjacent rectangular conductors 11 in the region excluding both ends, so that the slits 13 can be formed more easily than in the conventional case. It is possible to prevent the occurrence of a defect such as a part of the conductor 11 being exposed during slit processing as in the conventional case, and when the flat wire is placed on a horizontal surface such as a desk, the vertical direction and the horizontal surface It is possible to obtain a high-quality short-pitch wire that is parallel and has excellent bendability in a direction orthogonal to the direction of each conductor 11, and has a small conductor pitch at both ends to be connected to the connector or the like.

As a second embodiment, as shown in FIG. 3, the distance between the adjacent flat conductors 11 in the area excluding one end is smaller than the distance between the adjacent flat conductors 11 at this one end. The size may be increased, and in this case, the same effect as that of the first embodiment can be obtained.

[0019]

As described above, according to the first aspect of the present invention, the distance between the adjacent flat conductors in the area excluding at least one end is made smaller than the distance between the adjacent flat conductors at one end. By making it larger, when forming a slit in the insulating material, it is possible to perform slit processing on the part where the gap between adjacent rectangular conductors is large, so it is easier to process the slit compared to the conventional one, and the slit It is possible to prevent the occurrence of defects such as the exposure of part of the conductor during processing, and when the flat wire is placed on a horizontal surface such as a desk, it is parallel to the vertical direction and the direction of each conductor. It is possible to obtain a high-quality short-pitch wire with excellent bendability in the direction orthogonal to, and with a small pitch between conductors at both ends to be connected to the connector, etc. It is preferred.

Further, as described in claim 2, even when the interval between the adjacent rectangular conductors in the region excluding both ends is made larger than the interval between the adjacent rectangular conductors at both ends thereof, the adjacent rectangular conductors Since slitting will be performed on the part with a large gap between them, the ease of slitting will not change, and a high quality short pitch wire with a small conductor pitch at one end to be connected to a connector etc. can be obtained. You can

[Brief description of drawings]

FIG. 1 is a plan view of a first embodiment of the present invention.

FIG. 2 is a plan view of the first embodiment during manufacturing.

FIG. 3 is a plan view of the second embodiment.

FIG. 4 is a plan view of a conventional example.

[Explanation of symbols]

 11 Flat conductor 12 Insulation material 13 Slit

Claims (4)

[Claims] 1. A flat wire formed by covering a plurality of rectangular conductors arranged in parallel at a predetermined interval with an insulating material, wherein the interval between adjacent rectangular conductors in a region excluding at least one end is A flat wire, wherein the gap is made larger than the distance between the adjacent rectangular conductors at one end, and a slit is formed in the insulating material between the adjacent rectangular conductors in regions other than both ends. 2. The flat wire according to claim 1, wherein an interval between the adjacent rectangular conductors in the area excluding both ends is made larger than an interval between the adjacent rectangular conductors in the both ends. 3. The flat wire according to claim 1, wherein the insulating material is an insulating tape. 4. The flat wire according to claim 1, wherein the insulating material is made of a resin formed by extrusion molding.