JP3087622B2 - Jig for forming bent portion of wire harness and method of forming bent portion - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for forming a bent portion of a wire harness and a method of forming a bent portion using the jig, and more particularly, to a method of forming a wire group in a straight line on a wiring diagram. The bent portion can be formed later.

[0002]

2. Description of the Related Art A wire harness that is routed along a vehicle body must be bent at a required location in accordance with the shape of the vehicle body, and therefore, as shown in FIG. H is bent to the required shape in advance,
Installed along the vehicle body on the assembly line. Conventionally, as a method of forming a required bent portion in the wire harness,
As shown in FIG. 8, a Y-type wiring jig 3 is erected on the wiring diagram board 2 according to a bent shape, and the electric wire groups 5 constituting the wire harness are sequentially placed on the wiring jig 3. After inserting and bending, after wiring, the tape 7 is wound around the wire group 5 and bound to form a bent portion.

[0003]

In the conventional method shown in FIG. 8, it is necessary to sequentially insert the wire group 5 into the wiring jig 3 while bending the wire group 5 on the wiring diagram board 2. In addition, there is a problem that the electric wire easily overflows from the wiring jig 3. Further, when the tape 7 is wound around the wire group 5, the wiring jigs 3 are not arranged on the same line, so that there is a problem that the wiring jigs 3 hinder the winding of the tape 7.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has a bent portion forming jig capable of forming a bent portion on a wiring diagram board even if the wiring jig is arranged in a straight line. It is an object of the present invention to provide a method for forming a bent portion using a tool.

[0005]

In order to achieve the above object, according to the present invention, there is provided a supporting shaft portion detachably provided on a wiring diagram board for forming a wire harness, and the supporting shaft portion. A hollow forming portion protruding upward from the upper end of the support shaft portion, and a wire holding portion projecting in an L-shape from both upper ends of the support shaft portion to form a wire holding space on both sides of the hollow forming portion. Is projected from the center of the group of wires to be wired, a hollow portion is formed in the center of the group of wires, and the divided wire group is held by wire holding portions on both sides. After taking out the wire harness, the wire group is bent with the hollow portion as a fulcrum, and the wire group located on the inner peripheral side is pushed into the hollow portion to form a required bent portion. providing.

It is preferable that the hollow forming portion has a columnar shape, and that both sides of the upper portion thereof in the wire insertion direction are inclined from the center of the upper end and cut off to form a divided portion. (Claim 2)

According to a third aspect of the present invention, a jig for forming a bent portion according to the first or second aspect is provided together with another wiring jig on a wiring diagram for forming a wire harness. Were installed in series along a straight line, and the jig for forming the bent portion was installed at a position corresponding to the bending point of the wire harness, and the wire group constituting the wire harness was installed in series. The wire is laid in a straight line while being held by a jig. In the jig for forming the bent portion, the hollow portion is protruded from the center of the wire group, and the wire group is divided into two.
Except for the wire group attached to the jig for forming the bent portion, a tape is wound around the wire group of the other part and bound, and then,
Take out the wire group from the jig for forming the bent part, bend it at a required angle in a required direction with the hollow part formed in the center of the wire group as a fulcrum, and hollow the wire group located on the inner peripheral side of the bent part. The present invention provides a method for forming a bent portion of a wire harness in which a bent portion is formed by being pushed into a bent portion.

As described above, claim 1 or claim 2
When the wire group is passed through the jig for forming a bent portion described in the above section, the jig is taken out of the wire group upward and bent with the hollow portion of the wire group formed by the hollow portion forming portion of the jig as a fulcrum. Then, the wire group can be bent at a required angle in a required direction.

Therefore, the jig for forming a bent portion is arranged on the same line as another Y-type wiring jig for holding a normal electric wire on the wiring diagram board. Even in this case, the wire group can be bent at the position where the bent portion forming jig is arranged.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. As shown in FIG. 1, a jig 11 for forming a bent portion according to the present invention is formed on a wiring diagram board 13 by a straight line in a horizontal direction with a wiring jig 12 for holding a normal Y-shaped electric wire. It is erected in. The bending portion forming jig 11 is arranged at a position where the wire group 15 to be wired is bent. In the present embodiment, as shown in FIG.
As shown in FIG. 1, four bending portion forming jigs 11 are erected on the wiring diagram board 13 along the same line as the wiring jigs 12 in order to bend them at different places.

Each of the bending portion forming jigs 11 includes a support shaft portion 11b which is detachably provided on the wiring diagram plate 13, and a hollow forming portion 11a which projects upward from an upper end of the support shaft portion 11b.
And a pair of wire holders 11c, 11c protruding in an L-shape from both upper ends of the support shaft 11b. Support shaft 11
A screw 11d is engraved on the outer periphery of the lower end of b, penetrates through a mounting hole provided in the wiring diagram board 13, and is fixedly fastened from the lower end with a nut (not shown).

The hollow forming portion 11a has a cylindrical shape, and has a dividing portion 11e formed on an upper portion thereof for smoothly distributing electric wires to both sides. That is, the taper surface 11 is cut off by inclining both sides in the wire insertion direction from the center of the upper end.
f is formed, and the vertex of the upper end protruding in a triangular shape is defined as the wire dividing end. The jig 11 for forming the bent portion to be used
It is preferable that the diameter of the hollow forming portion 11a be used in accordance with the amount of the wire group, the bending angle, and the like. Also,
It is not always necessary to provide the above-mentioned divided part in the hollow part forming part.

The wire holding portions 11c projecting from both sides of the support shaft portion 11b are each composed of a horizontal shaft portion 11g and a vertical axis portion 11h, and the vertical axis portion 11h is separated from the hollow forming portion 11a by a required distance. And an electric wire holding space 11i is formed therebetween.

Next, a process of forming a wire harness having a bent portion by using the bent portion forming jig 11 will be described with reference to FIG.
This will be described with reference to FIG. As shown in FIG. 1, a jig 11 for forming a bent portion is formed on a wiring diagram plate 13 by using a conventionally used Y.
It is arranged in series on the same line as the wiring jig 12 of the mold.

First, as shown in FIG. 4A, a large number of electric wires w constituting a wire harness are inserted into a U-shaped holding portion at the upper end of a wiring jig 12 and a jig 1 for forming a bent portion.
In the case of 1, the wire group 15 is divided roughly into two by
5a and 15b, which are passed through the wire holding spaces 11i and 11i on both sides of the hollow forming portion 11a, and the hollow forming portion 11a protrudes from between the wire groups 15a and 15b.

Next, after all the electric wire groups 15 are passed through the wiring jig 12 and the bent portion forming jig 11 to be wired, and except for the portion passed through the bent portion forming jig 11, FIG. As shown in ()), the wire group 15 is wound around the tape 17 and bound. The winding of the tape 17 may be roughly wound as shown in the figure, but it is essential to wind the tape 17 at both ends of the bent portion.

After the binding with the tape 17 is completed,
The wire group 15 is taken out from the bent portion forming jig 11 upward. As shown in FIG. 4 (C), the extracted electric wire group 15 has a hollow portion 16 formed at the center, and the electric wire group 15 is divided into two on both sides with the hollow portion 16 interposed therebetween, and each of them is curved outward. Two electric wire groups 15a and 15b are formed.

The portions B1 to B4 (four portions in the illustrated example) taken out of the above-mentioned bending portion forming jigs 11 are
Each is bent in the direction indicated by the arrow in FIG.
As shown in FIGS. 5A and 5B in an enlarged manner, when the hollow portion 16 is bent around the center as a fulcrum, one of the electric wire groups 15b on the outer peripheral side curves outward from the beginning as described above. ing. The other inner wire group 15a is pushed into the hollow portion 16 from the outwardly curved state, and the outer wire group 1a is pressed.
5b, an inner peripheral side is formed, and the entire wire group 15 is smoothly bent in a required direction and at a required angle. After bending, as shown in FIG. 4 (D), a tape 17 'is wound around the outer periphery of the bent portion, and bound while maintaining the bent state. Thus, to form a wire harness W / H having a bent portion B ₁ ~B _4.

FIGS. 6A and 6B show a modification of the jig for forming a bent portion, in which a horizontal connecting shaft 1 is provided at the upper end of a support shaft portion 11b.
1m, and a hollow forming part 1 is attached to one end of the connecting shaft 11m.
First bent forming portion 11p provided with 1a and wire holding portion 11c
While the other end of the connecting shaft 11m is similarly provided with the hollow forming portion 11a and the wire holding portion 11c.
q is provided. The use of the jig provided with the two bent portion forming portions 11p and 11q in one jig is suitably used when the bent portions are continuously located at the close positions.

The hollow forming portion of the jig for forming a bent portion is not limited to a cylindrical shape, but may be a semi-cylindrical shape.
Only the electric wire group on the outer peripheral side of the bent portion may be curved outward.

[0021]

As is apparent from the above description, when the bent portion is formed by using the bent portion forming jig according to the present invention, the electric wire group is linearly wired on the wiring diagram board. Even in this case, a bent portion can be formed. Therefore, there is no need to wire the wires while bending the wire group, and the wiring work can be performed quickly and efficiently. Further, since the wire group is not bent in the wired state, the wire does not overflow from the wiring jig. In addition, when performing tape winding work after wiring the wire group, the jigs are lined up in a straight line,
This has the advantage that the jig does not obstruct the operator and the tape winding operation can be easily performed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 shows a jig for forming a bent portion of the present invention, wherein (A) is a plan view and (B) is a front view.

FIG. 3 is a front view showing a state where an electric wire is inserted through the jig for forming a bent portion in FIG. 2;

FIGS. 4A to 4D are schematic views showing a step of forming a bent portion of a wire harness.

FIGS. 5A and 5B are enlarged explanatory views showing a method of forming one bent portion.

6A and 6B show a modification of the jig for forming a bent portion, wherein FIG. 6A is a plan view and FIG. 6B is a front view.

FIG. 7 is a schematic view showing a conventional wire harness having a bent portion.

FIG. 8 is a perspective view illustrating a conventional method for forming a wire harness having a bent portion.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 Bending part forming jig 11a Hollow forming part 11b Spindle part 11c Electric wire holding part 11e Dividing part 12 Y-type wiring jig 13 Wiring diagram board 15, 15a, 15b Electric wire group 17, 17 'Tape w Electric wire W / H wire harness B ₁ .about.B ₄ bent portion

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H01B 13/00 H05K 13/06

Claims (3)

(57) [Claims] 1. A support shaft portion detachably provided on a wiring diagram plate for forming a wire harness, a hollow formed portion projecting upward from an upper end of the support shaft portion, and both upper ends of the support shaft portion A wire holding portion that protrudes more in an L-shape to form a wire holding space on both sides of the hollow forming portion, wherein the hollow forming portion protrudes from the center of the wire group to be wired, and a central portion of the wire group. A hollow portion is formed, and the divided electric wire group is held by the electric wire holding portions on both sides. After the electric wire group is taken out from the electric wire holding portion, the electric wire group is bent with the hollow portion as a fulcrum, and the inner circumferential side is formed. A jig for forming a bent portion of a wire harness, in which a group of electric wires positioned is pushed into a hollow portion to form a required bent portion. 2. The wire harness according to claim 1, wherein the hollow forming portion has a cylindrical shape, and both sides in the wire insertion direction are cut off by being inclined from the center of the upper end, and a divided portion is provided above the hollow forming portion. A jig for forming a bent part. 3. The wiring diagram for forming a wire harness according to claim 1 or 2, together with another wiring jig.
And the jig for forming a bent portion described above is arranged in series along a straight line, and the jig for forming a bent portion is installed at a position corresponding to a bending point of the wire harness to configure a wire harness. The electric wire group is laid in a straight line while being held by the jigs arranged in series, and the electric wire group is divided into two by making the hollow forming portion protrude from the center of the electric wire group in the jig for forming the bent portion. After the wiring, except for the wire group attached to the bending part forming jig, a tape is wound around the other part of the wire group and bound, and then the wire group is taken out from the bending part forming jig, A wire harness that bends at a required angle in a required direction with a hollow portion formed at the center of the wire group as a fulcrum, and pushes the wire group located on the inner peripheral side of the bent portion into the hollow portion to form a bent portion. Method for forming a bent portion.