JPH0845356A - Folded part of flat cable - Google Patents

Abstract

PURPOSE:To stably hold the folded part of a flat cable by firmly holding it in place. CONSTITUTION:Projecting pieces 12, 13 extending from an insulating sheet 11 are provided near a center line S of folding at the side edge of a flat cable 10, one side L1 of the projecting piece 12 and one side L2 of the projecting piece 13 both being parallel to the center line S of folding. The flat cable 10 is folded in two at the center line S of folding, and the side L1 of the projecting piece 12 is made to overlap the side L2 of the projecting piece 13 to form a layered portion, which is firmly held in place by a tape and held stably.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bent portion of a flat cable capable of stably holding a bent portion for changing the wiring direction when it is used for wiring an electric device or the like. It is about.

[0002]

2. Description of the Related Art Conventionally, when mounting and wiring a flat cable, the flat cable may be bent to change the direction. For example, as shown in FIG. 11, the connector 1
In order to hold the shape of the bent portion 3 in a fixed manner when the flat cable 2 having the folds is bent along the bending line S and the position of the connector 1 is changed as shown in FIG. Tape 4 made of vinyl chloride, etc.
Often wrapped around and fixed.

As another method, as shown in FIG. 14, a tongue piece 6 is provided on both side edges of the flat cable 2 with holes 5 so that the positions of the flat cables 2 match when bent along a folding line S.
It is also practiced to provide a plastic band band 7 through the holes 5 as shown in FIG.

[0004]

However, when the bending portion 3 is wound with the tape 4 as in the above-mentioned conventional example, the tape becomes wrinkled at the inside of the bent portion, which is not preferable in appearance and is firm. There is a problem that it cannot be fixed. On the other hand, a tongue piece 6 is provided at a predetermined portion, and the band 5 is provided in the hole 5
In the method of fixing through, there are problems that the positions of the holes 5 are not aligned, sagging due to bending occurs, and the band 8 is relatively expensive.

The object of the present invention is to solve the above problems,
It is an object of the present invention to provide a bent portion of a flat cable that can be easily and firmly fixed when the flat cable is bent and used.

[0006]

The bent portion of the flat cable according to the present invention for achieving the above object is to bend the flat cable in which a conductor is sandwiched by an insulating sheet at a predetermined position so as to change the wiring direction. In the case of changing, a projecting piece that extends from the insulating sheet that is an inner corner side in at least a bent state near the folding center line at the predetermined position and that has a side that is substantially parallel to the folding center line is provided, The insulating sheet is bent together with the conductor around the bending center line, and a tape is wound between a parallel piece of the protruding piece and an outer side including the bending center line.

[0007]

The bent portion of the flat cable having the above-described structure is provided with the protruding piece extending from the insulating sheet near the bent center line, and the flat conductor and the insulating sheet are bent at the bent center line and bent. A bent portion between the outer side and one side of the protruding piece parallel to the outer side is fixed by tape and stably held.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in FIGS. FIG. 1 is a plan view before bending the flat cable 10 of this embodiment, and FIG. 2 is a plan view after bending. Insulation sheets 11 are provided on both sides of the flat cable 10 in which the flat conductors C1 and C2 are sandwiched by the insulation sheets 11 near the folding center line S, which are inside angles in the folded state.
Triangular protrusions 12 and 13 extending from
One side L1 of the protruding piece 12 and one side L2 of the protruding piece 13 are formed symmetrically with respect to the bending center line S and parallel to the bending center line S.

When the direction of the flat cable 10 is changed, when the flat cable 10 is folded in two at the bending center line S, the shape becomes as shown in FIG. 2, and the side L1 of the protruding piece 12 and the protruding piece 13 are formed. The side L2 overlaps to form the side L, and the position of the bending center line S becomes the outer side S'of the bent flat cable. The laminated portion 14 is formed between the outer side S'and the side L, and the side L1 is formed. Side L and side S'where side L2 overlaps
Will be parallel to.

As shown in FIG. 3, a space between the side L and the side S'on the laminated portion 14 is an adhesive tape 15 such as vinyl chloride.
By wrapping with, the laminated portion 14 can be firmly fixed and stably held so as not to shift.

When the insulating sheet 11 has a large thickness, the projecting pieces 12 and 13 do not necessarily have to be provided on both side edges of the flat cable 10 as shown in FIG. 1, and as shown in FIG. 4 and FIG. Even if the piece 15 is provided on one side edge and bent as shown in FIGS. 6 and 7, the laminated portion 14 is firmly fixed with the adhesive tape in the same manner as in FIG.
Can be held.

Further, although the projecting piece is formed as an isosceles triangle in the above-mentioned embodiment, it may be a right-angled triangle composed of the projecting pieces 12 and 13 as shown in FIG. The combination may be a trapezoidal shape as shown in FIG. Furthermore, as shown in FIG.
The sizes of 2 and 13 can be set freely, and if the parallel line L3 shorter than the length of the bending center line S is formed as one side, and only the center of the bending portion is fixed with tape, The protruding pieces 12, 13 are smaller, and the material used can be saved.

Further, in the embodiment, only the case where the flat cable 10 is bent at a right angle has been described, but it is also possible to fold it back in a direction other than the right angle.

When the specifications of the flat cable 10 are determined, the flat cable 10 can be bent at an accurate position and the bent portion can be firmly fixed by providing such a protruding piece near the bent position. As a result, mounting wiring can be performed easily and accurately, and it is possible to finish the appearance neatly.

In the embodiments of FIGS. 1 to 3, 9 and 10, the entire bent portion has a two-layer structure, so that the strength of the bent portion is secured even if the insulating sheet 11 is thin, which is advantageous. Is.

[0016]

As described above, the bent portion of the flat cable according to the present invention is provided with a protruding piece extending from the insulating sheet on the side edge thereof, and one side of the protruding piece is substantially parallel to the bending center line. By doing so, it is possible to bend at an accurate position, and the bent portion can be firmly fixed with tape.

[Brief description of drawings]

FIG. 1 is a plan view of a bent portion according to an embodiment.

FIG. 2 is a plan view of a bent state.

FIG. 3 is a plan view showing a state in which a tape is wound around a bent portion.

FIG. 4 is a plan view of a bent portion of another embodiment.

FIG. 5 is a plan view of still another embodiment.

FIG. 6 is a plan view of a bent state.

FIG. 7 is a plan view of a bent state.

FIG. 8 is a plan view of another embodiment.

FIG. 9 is a plan view of another embodiment.

FIG. 10 is a plan view of another embodiment.

FIG. 11 is a plan view of a bent portion of a conventional example.

FIG. 12 is a plan view of a bent state.

FIG. 13 is a plan view showing a state in which a tape is wound around a bent portion.

FIG. 14 is a plan view of a bent portion of another conventional example.

FIG. 15 is a plan view of a bent state.

[Explanation of symbols]

 10 Flat Cable 11 Insulating Sheet 12, 13, 15 Projecting Piece 14 Laminated Part 15 Adhesive Tape S Bent Center Line

Front page continuation (72) Inventor Hiromasa Ako 2 Takara-cho, Kanagawa-ku, Yokohama, Kanagawa 2 Nissan Motor Co., Ltd. (72) Inventor Kenji Watanabe Takara-cho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. (72) Invention Person Takahashi Tsuneyuki 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Motor Co., Ltd.

Claims (2)

[Claims] 1. When the flat cable in which a conductor is sandwiched by an insulating sheet is bent at a predetermined position to change the wiring direction, at least a bent state near the bending center line at the predetermined position is at the inner angle side. A protruding piece that extends from the insulating sheet and has a side that is substantially parallel to the bending center line, and bends the insulating sheet together with the conductor around the bending center line, A bent portion of a flat cable, characterized in that a space between a parallel piece and an outer side including the bent center line is wound with a tape. 2. A side substantially parallel to the bending center line at a side edge opposite to the side edge where the protruding piece is formed at a position line-symmetric with respect to the bending center line of the protruding piece. The bent portion of the flat cable according to claim 1, further comprising: a protruding piece having: and the insulating sheet being bent so that the parallel pieces of the protruding pieces overlap each other.