JPH1118254A - Jig for fixing clamp onto wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jig with which a clamp can easily be fixed on the branch part of a wire harness. SOLUTION: This jig 10, designed for branching a wire harness in a 'T' or cross shape and fixing a clamp at the branch position, is provided with a shaft part 11 vertically mounted on a wire harness assembly plate 1, a substrate 12 provided on the top end of this shaft part 11, guiding poles 13A to 13D protruded from both corners of at least one side of this flat base plate 12, and a hole 14 enabling a locking head 20a of a clamp 20 bored in the substrate 12 to be freely mountable. Here, the clamp 20 of a base plate type is set onto the substrate 12 of this jig 10. With the locking head 20a inserted into the hole 14, electric wires are branched in this condition, and fixing the clamp 20 and tape winding over the bundle of the electric wires are performed at the some time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for attaching a clamp to a wire harness, and more particularly, to a wire harness assembly drawing plate for attaching a clamp for locking a vehicle body to a branch position of an automobile wire harness. It is related to the jig to be installed.

[0002]

2. Description of the Related Art Conventionally, a wire harness routed along a vehicle panel of an automobile is often locked to a vehicle body at a branch position. In this case, when assembling the wire harness, an electric wire group is branched and branched. After binding the assembled electric wires, a clamp for locking the vehicle body is attached to the branch position.

[0003] Generally, as shown in FIG. 5 (A), a method of attaching the clamp to the branch position of the wire harness is such that a wire harness assembly board (hereinafter abbreviated as a board) 1 shown in FIG. A branch jig 2 having a wire-shaped wire holding portion 2a protruding above a shaft portion 2b is used. Wire while branching. Next, as shown in FIG. 5B, the tape 3 is wound around the wire group at the branch position and bound. Thereafter, as shown in FIG. 5 (C), the jig 2 is lowered from the drawing board 1 and the wire group at the branch position where the jig 2 is bound with tape is removed from the jig 2. Thereafter, as shown in FIG. 5 (D), the clamp mounting jig 4 shown in FIG. 7 which has been tilted down on the drawing board 1 is erected, and the set base 4a of the jig 4 is arranged below the branch position.

The clamp mounting jig 4 has the set table 4a fixed to the upper end of a shaft 4b which can be freely raised and lowered on the drawing board 1. An insertion hole 4c is formed in the center of the set table 4a. And a receiving portion 4c is protruded at the tip.

[0005] A board type clamp 5 is placed on the set table 4a, and a locking head 5b protruding from the center of the board 5a is inserted downward into the insertion hole 4c. In this state,
The branch portion of the wire harness is placed on the substrate 5a, and both ends of the substrate 5a are wound around the trunk line W-1 with a tape 6 and fixed.

[0006]

The above-mentioned method requires two jigs, a branch jig 2 and a clamp mounting jig 4, and the branch jig 2 can be moved up and down with respect to the drawing board 1. In addition to the necessity of mounting, the clamp mounting jig 4 needs to be mounted on the drawing plate 1 so as to be able to be raised and lowered, and there is a problem that the structure is complicated and the cost increases.

[0007] Further, after the wire group is branched by the branching jig 2, the tape is wound, and then the branching jig 2 is lowered. Then, the clamp is mounted by erecting the clamp mounting jig.
Since it is necessary to wind the wire around the wire group, the number of steps increases, and there is a problem that workability is poor.

Further, a branch jig 2 whose dimensions are guaranteed.
Since the wire group is once taken out from the cable, there is a possibility that the dimensions may be shifted when the clamp is attached.

In order to solve the above-mentioned problem, the present applicant has previously proposed a wire harness branching jig and clamp shown in FIGS. 8A and 8B in Japanese Patent Application Laid-Open No. 8-249947. The branch jig / clamp includes a support plate 7 having a clamp 8a protrudingly attached to a holding plate 7 fixed to an upper end of a shaft 6 erected on the drawing board 1, and a support column erected on the substrate. After branching the wire group at 8b, the lid plate 9 is attached to the upper end of the column 8b.

[0010] The branch jig / clamp requires only one jig, but has a problem that the structure is complicated, the number of parts is large, and the clamp becomes large.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to provide a simple structure and a small number of steps for mounting a clamp at a branch position of a wire harness.

[0012]

According to the present invention, there is provided a jig for branching a wire harness into a T-shape or a cross shape and mounting a clamp at the branch position. And a shaft portion erected from the wire harness assembly drawing board, a plate-shaped substrate provided at an upper end of the shaft portion, and a guide rod projecting from both corners on at least one side of the plate-shaped substrate, A jig for attaching a clamp to a wire harness, wherein the jig includes a hole into which a locking head of a clamp formed in the flat substrate is removably fitted.

It is preferable that the plate-like substrate has a rectangular shape, and the guide bar protrudes from four corners thereof.

The flat substrate may be fixed to the upper end of the shaft portion or may be mounted so as to be replaceable on the upper end of the shaft portion. In this case, depending on the branching mode of the wire group, the shape of the clamp to be mounted, and the like. What is necessary is just to select and attach the corresponding one.

In the jig having the above configuration, a board-type clamp is previously mounted on the flat board, and the locking head of the clamp is inserted into a hole of the flat board.
The wire group is passed between the guide rods and branched into a T-shape or a cross. In this state, the trunk side of the group of electric wires branched together with both ends of the substrate of the clamp is fixedly wound with tape, and the branch side is also fixed with tape.

With the above-described single tape winding, the bundling of the wire group at the branch portion and the attachment of the wire group to the substrate of the clamp can be performed simultaneously. Thereafter, when the wire group is taken out of the jig from the jig, the locking head of the clamp is pulled out from the hole.

As described above, only one jig may be used, and the jig may be fixed on the drawing board. Further, the bundling of the electric wires and the attachment of the electric wires to the clamp are performed simultaneously. Can be.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a clamp mounting jig (hereinafter, abbreviated as a jig) 10 according to the first embodiment is fixed to a shaft 11 erected from the drawing board 1 and an upper end of the shaft 11. A rectangular plate-shaped substrate 12 and guide rods 13A, 13B, 13C protruding from four corners of the plate-shaped substrate 12;
13D, and a hole 14 is formed in the center of the flat substrate 12 so that the clamp head is removably fitted therein.

In the present embodiment, the hole 14 is provided with a clamp 20.
An elliptical shape corresponding to the wing-shaped locking head 20a,
The size of the locking head 20a is loosely fitted. Further, the guide rods 13A to 13D are formed in a prismatic shape that is slanted toward the upper end with a small width. In addition, the shape of the guide rods 13A to 13D is not limited, and may have a function of guiding a group of electric wires to be wired, and may have a round rod shape.

As shown in FIG. 2, the jig 10 is provided upright on the drawing board 1 at a position where a group of wires to be wired is branched. A substrate type clamp 20 is set on the upper surface of the flat substrate 12 of the jig 10 before wiring.

That is, one end 20c of the substrate 20b of the clamp 20 is made to protrude between the guide rods 13A and 13B of the flat substrate 12, while the other end 20d of the substrate 20b is made to protrude between the guide rods 13C and 13D. And substrate 2
0b, the locking head 20a protruding from the center of the center hole 1
4 and inserted loosely into it.

After the clamp 20 is set on the jig 10 as described above, the electric wire group is wired, and the guide rods 13A and 13A are connected.
Then, the electric wire of the trunk line W-1 is laid through the space between the guide rods 13C and 13D. After passing the guide rods 13A and 13B, the branch wire is branched into a T-shaped trunk line W-1 through the guide rods 13A and 13C, and the branch line W-2 is laid.

After arranging all the electric wires in this way,
As shown in FIG. 2 (B), the projecting ends 20c and 20d of the substrate 20b of the clamp 20 are wound around the electric wire of the trunk line W-1 with a tape 30, respectively, and the electric wires are bound and the clamp 20 is fixed to the electric wires. I do. The wire group of the branch line W-1 is also tied by winding the tape 30 at a position protruding from the jig 10.

As described above, the binding of the wire group and the clamp 10
When the electric wire group is taken out from the jig 10 after attaching the jig 10, the electric wire group is smoothly taken out from between the guide rods 13A to 13D, and the jig 10 does not interfere.

FIGS. 3A and 3B show a modification of the mounting position of the guide rod. When the clamp 20 is mounted at the T-shaped branch position of the wire harness, as shown in FIG. The guide rods 13 may be erected at only two corners on one side of the substrate 12, or may be erected at three places.

FIG. 4 shows a second embodiment, in which a guide rod 1 is provided.
It is also possible to adopt a configuration in which a flat substrate 12 ′ provided with the projection 3 ′ is detachably fitted and held on a support plate 40 fixed to the upper end of the shaft 11. With this configuration, a flat substrate 12 ′ corresponding to the shape of the clamp to be attached and the branching form of the wire harness can be attached to the holding plate 40 and used.

Further, a screw hole for screwing a guide rod into the plate-shaped substrate 14 may be formed, and only a necessary guide rod may be attached by screwing.

[0028]

As is apparent from the above description, when the clamp mounting jig of the present invention is used, a board-type clamp is previously mounted on the flat board, and the locking head of the clamp is flat. Inserted into the hole of the substrate, in this state,
After passing the wire group between the guide rods and branching in a T-shape or a cross shape, the trunk line side of the branched wire group together with both ends of the clamp substrate is fixed with tape and the branch line side is also fixed with tape. With only this, the clamp can be easily attached to the branch position of the wire harness.

As described above, only one jig is required, and two jigs are not required unlike the related art. Also, the jig may be fixed on the drawing board, and it is not necessary to raise and lower and raise and lower as in the conventional case.
Significant cost reduction can be achieved.

Further, as described above, the bundling of the wire group and the attachment of the wire group to the clamp can be performed simultaneously by one tape winding operation, so that the workability can be greatly improved.

[Brief description of the drawings]

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

FIGS. 2A and 2B are perspective views for explaining a use state.

FIGS. 3A and 3B are schematic diagrams showing modified examples of a jig.

FIG. 4 is a schematic sectional view of a second embodiment.

FIGS. 5A, 5B, 5C, and 5D are perspective views of a conventional example.

FIG. 6 is a perspective view of a conventional branch jig.

7A and 7B are perspective views of a conventional clamping jig.

8A and 8B are perspective views of another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wire harness assembly drawing board 10 Clamp attachment jig 11 Shaft part 12 Flat board 13A-13D Guide rod 14 Hole 20 Board type clamp 20a Locking head 20b Board 30 Tape W-1 Trunk line W-2 Branch line

Claims (2)

[Claims] 1. A jig for branching a wire harness into a T-shape or a cross shape and mounting a clamp at the branch position, the shaft portion being erected from a wire harness assembly drawing board, and the shaft being A flat board provided at the upper end of the portion, a guide rod projecting from at least one corner of at least one side of the flat board, and a locking head of a clamp formed in the flat board, which is removably fitted. A jig for attaching a clamp to a wire harness, comprising: 2. The jig for attaching a clamp to a wire harness according to claim 1, wherein the flat substrate has a rectangular shape, and the guide bar projects from four corners thereof.