JPH11144538A - Method and device for attaching corrugated tube to wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach a half corrugated tube to wire harness by winding tape around the tube without causing movement of the tube. SOLUTION: Jigs each provided with a U-cross-section wire receiving part 13 located on half of a circumference on which a half corrugated tube 1 is not mounted are placed upright at intervals along a wire laying position on a wire-harness assembly drawing board 10, and after a group of wires W constituting wire harness are inserted into the wire receiving parts 13 and laid in place, both of the circumferential ends of the half corrugated tube 1 are pressed against the upper surfaces of both sides of each wire receiving part 13 to hold the half corrugated tube 1 in position, with the tape-winding starting end of the half corrugated tube 1 removed from the jig 11. Under these conditions, tape is wound on the corrugated tube and the group of wires as the jigs are sequentially lowered when coming to a position where the tape 2 wound makes contact with each of the jigs.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for attaching a half-corrugated tube to a wire harness and an apparatus used for the method. More particularly, the present invention relates to a method for attaching a half-corrugated tube to a wire harness without twisting. It is attached along a predetermined direction of the harness.

[0002]

2. Description of the Related Art Cylindrical corrugated tubes are attached to a wire harness routed along the body of an automobile as an exterior protective material. May be enough.
In that case, as shown in FIG. 6, a half-corrugated tube 1 having a semi-annular cross-sectional shape in which a cylindrical corrugated tube is vertically divided along the axial direction is taped onto the outer peripheral surface of the wire harness W / H. It is wound around and attached.

[0003]

When the above-mentioned half-corrugated tube 1 is put on a half-periphery portion of the outer peripheral surface of the wire harness W / H, its position is not regulated, and as shown in FIG. The attachment position is difficult to determine, and the position of the corrugated tube 1 may be shifted when the worker winds the tape 2 as shown in FIG.

Accordingly, in order to eliminate the displacement of the half-split corrugated tube 1 and keep the half-corrugated tube 1 in a predetermined direction as much as possible, FIG.
The worker holds the corrugated tube 1 with one hand as shown in
Is held down so as to prevent the displacement, and the tape 2 is wound with the other hand, thereby reducing the displacement.

However, since it is performed manually,
The displacement of the corrugated tube cannot be reliably prevented. If the displacement occurs, the corrugated tube does not exist at the position to be protected by the corrugated tube, and the interference member may damage the wire harness.

The present invention has been made in view of the above problems, and has as its object to enable a half-corrugated tube to be attached to a predetermined position of a wire harness without displacement using a jig.

[0007]

In order to solve the above-mentioned problems, the present invention is to provide a wiring harness on an assembly drawing board on a half-peripheral side where a half-corrugated tube is not attached at intervals along a wiring position. A jig provided with an electric wire receiving portion having a U-shaped cross section is erected and laid while inserting the electric wire group constituting the wire harness into the electric wire receiving portion. The half-corrugated tube is pressed against the upper surfaces of both sides of the wire receiving portion to position and hold the half-corrugated tube, and the tape winding start end of the half-corrugated tube is removed from the jig. Wrap the split corrugate tube with tape, and when it comes to the position where the tape to be wound comes in contact,
A method of attaching a corrugated tube to a wire harness is characterized in that the jig is lowered and the half-corrugated tube is attached with a tape while regulating the position of the half-corrugated tube with a downstream jig.

As described above, if the half-corrugated tube is wound around the wire harness while the position of the half-corrugated tube is forcibly regulated by using the jig, the misalignment of the corrugated tube occurs. Instead, the half-corrugated tube can be attached to the wire harness in a certain direction along a predetermined position. Further, the worker does not need to hold the half-split corrugate tube and wind the tape, but simply winds the tape, so that the workability is improved and the productivity can be improved.

According to the present invention, in order to carry out the above-mentioned method, a U-shaped cross section is provided at a half-peripheral side where a half-corrugated tube is not attached at intervals along a wiring position on an assembly drawing board of a wire harness. An apparatus is provided in which jigs provided with wire receiving portions are erected and these jigs are mounted on the assembly drawing board so as to be able to move up and down.

The jig is provided with a long wire receiving portion having a U-shaped cross section, which has a bottom surface fixed and protrudes on both sides from both ends of the bottom surface, at the upper end of a support shaft erected from an assembly drawing board. Shape. Alternatively, a horizontal shaft may be fixed to the upper end of the support shaft, and a U-shaped wire receiving portion may be provided at both ends of the horizontal shaft.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a wire harness W /
This is the case where the half corrugated tube 1 is attached to the upper half circumference of H.

A plurality of jigs 11 (11) are attached to a portion to be attached to the half-corrugated tube 1 along the wiring harness wiring path on the assembly drawing board 10 of the wire harness.
A, 11B, and 11C are erected at intervals. These jigs 11 include a support shaft 12 erected up and down from the assembly drawing board 10 and an electric wire receiving portion 1 provided at an upper end of the support shaft 12.
3 The electric wire receiving portion 13 has a U-shaped cross section having a bottom surface 13a having a substantially center in the length direction fixed to the support shaft 12, and both side portions 13b and 13c protruding from both ends of the bottom surface, and the length L is increased. It has a long gutter shape.

The both sides 13b and 13c of the jig 11 are
Since the half-corrugated tube 1 is attached to the upper half circumference of the wire harness W / H, it is upward.

On the assembled drawing board 10 on which the jig 11 is erected, a large number of electric wire groups w constituting the wire harness W / H are inserted and wired into the electric wire receiving portion 13. After the wiring, as shown in FIGS. 1 and 2, both ends of the half-split corrugated tube 1 in the circumferential direction are both side portions 1 of the wire receiving portion 13.
It is mounted so as to be in contact with the upper ends of 3b and 13c.

At this time, the leading end 1a of the half-split corrugated tube 1 on the tape winding start side slightly protrudes from the wire receiving portion 13 of the jig 11A erected at the upstream end.
It is out of 1A. In other words, the jig 11A is set on the assembly drawing board 10 such that the wire receiving portion 13 of the jig 11A is located slightly downstream from the mounting position of the half-corrugated tube 1.

The dimension L between the tip of the wire receiving portion 13 of the jig 11A and the tip 1a of the half-corrugated tube 1
Is the width of at least the tape 2 (20 mm in this embodiment)
Larger than.

The half-split corrugated tube 1 put on the electric wire receiving portions 13 of the jigs 11A, 11B and 11C is positioned and held. In this state, the tip 1a of the half-corrugated tube 1 positioned
Twist the tape 2 into the wire group w and the half corrugated tube 1
And wrap it around.

When the tape 2 comes in contact with the wire receiving portion 13 of the jig 11A, as shown in FIG. 3, the jig 11A is lowered and the half-corrugated tube 1 is positioned and supported by the jigs 11B and 11C on the downstream side. . When the tape 2 is wound in the direction of the arrow and comes into contact with the wire receiving portion 13 of the jig 11B, the jig 11B is lowered, and similarly, the tape 2 is moved to the wire receiving portion 1 of the jig 11C.
When it comes into contact with 3, the jig 11C is lowered.

Since the half-split corrugated tube 1 is positioned and held by the jig 11 as described above, the half-split corrugated tube 1 attached to the wire group w can be moved in a fixed direction (upper half-peripheral portion) without displacement. ).

FIG. 4 shows a case where the half-split corrugated tube 1 is attached to the right half of the wire harness composed of the wire group w. In this case, the support shaft 12 'of the jig 11'
The upper end thereof has an inverted L shape bent horizontally, and a wire receiving portion 13 'having a U-shaped cross section is attached to the tip of a lateral support shaft 12'. Both side parts 13b 'of the electric wire receiving part 13', 1
3c 'is abutted on the circumferential ends of the half-corrugated tube 1 at the tip, and the wire group w and the half-corrugated tube 1 are wound around with tape, and the half-corrugated tube 1 is positioned on the right half-circumferential side. Be attached. The half-split corrugated tube is lightly pressed by a worker and pressed so as to be in contact with both side portions 13b 'and 13c' of the wire receiving portion.

FIG. 5 shows another embodiment of the jig.
A horizontal shaft 20 is fixed to the upper end of the 2 ", and a U-shaped electric wire receiving portion 13" is protruded from both ends of the horizontal shaft 21. The jig 1
The operation of 1 "is the same as that of the first embodiment, and the description is omitted.

[0022]

As is apparent from the above description, according to the present invention, since the half corrugated tube is positioned by the jig, the position of the half corrugated tube attached to the wire harness does not shift. Further, since the mounting position of the half-corrugated tube is regulated by the jig, the worker does not mistake the mounting direction. As a result, the wire harness can be protected by the half-split corrugated tube without any displacement in the predetermined direction. Therefore, when arranging in a car, the half-corrugated tube can always be positioned on the side where the interference member is located, and damage to the wire harness due to the interference member can be prevented.

Further, during the tape winding work for attaching the half-split corrugated tube to the wire harness, it is not necessary for an operator to hold the half-split corrugate tube firmly by hand so as not to be displaced. Can be enhanced.

[Brief description of the drawings]

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

FIG. 2 is a sectional view of a main part of FIG.

FIG. 3 is a perspective view showing an attaching process.

FIG. 4 is a sectional view showing a second embodiment.

FIG. 5 is a perspective view showing a jig according to another embodiment.

FIG. 6 is a perspective view showing a state in which a half-corrugated tube is attached to a wire harness.

FIG. 7 is a sectional view showing a problem.

FIG. 8 is a perspective view showing a conventional working process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Half corrugated tube 1a Tape winding start side tip 2 Tape 10 Assembly drawing board of wire harness 11 (11A, 11B, 11C) Jig 12 Support shaft 13 Wire receiving parts 13b, 13c Both sides W / H Wire harness w Wire group

Claims (2)

[Claims] 1. A jig provided on an assembly drawing board of a wire harness with a wire receiving portion having a U-shaped cross section located on a half-circumferential side where a half-corrugated tube is not attached at intervals along a wiring position. After laying wires while inserting a wire group constituting a wire harness into the wire receiving portion, the circumferential ends of the half-split corrugated tube are pressed against the upper surfaces of both side portions of the wire receiving portion, and the half of the corrugated tube is pressed. While positioning and holding the split corrugate tube, the tape winding start end of the half split corrugate tube is detached from the jig, and in this state, the half split corrugate tube is wound with the electric wire group and the tape is wound at a position where the wound tape comes into contact. As they come,
A method of attaching a corrugated tube to a wire harness, characterized in that the jig is lowered and the half-corrugated tube is attached by tape winding while the position is regulated by a jig on the downstream side. 2. A jig provided with a wire receiving portion having a U-shaped cross section which is located on a half-circumferential side where a half-split corrugate tube is not attached at intervals along a wiring position on an assembly drawing board of a wire harness. An apparatus for mounting a corrugated tube on a wire harness, wherein the jig is erected and mounted on the assembly drawing board so as to be able to move up and down.