JPH0935536A - Wire harness and inspection method for binding this wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inspect a tape wound in a two-layer condition without worsening outward appearance of wire harness. SOLUTION: In a double winding part 11 of tape winding in a two-layer condition to bind the same part of wire harness W/H of bundling many electric wires (w), the first tape winding layer 12 of tape winding the periphery of an electric wire group is partly exposed, to provide the second tape winding layer 13 tape wound by the same tape 10, further to provide a tape mark 18 of different coloring from the tape in an exposed part 15 of the first tape winding layer. This mark is provided removably, for instance, by chalk, water color ink, etc., so as to be erased after an inspection process of the wire harness.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness to be installed in an automobile and a method for inspecting the binding of the wire harness. More specifically, in order to waterproof the wet area of the wire harness, a tape is applied to the wet area. In a double-wound wire harness, it is possible to inspect whether the tape is double-wound, without particularly deteriorating the appearance of the wire harness.

[0002]

2. Description of the Related Art As shown in FIG. 6, in a wire harness W / H arranged in a place such as a tire house 1 of an automobile where water is likely to splash, a portion of a wetted area R shown by diagonal lines in the drawing is particularly severe. Therefore, the outer circumference of the wire group is half-wrapped with a vinyl tape, and the half-wrapping is doubled to prevent water from entering the wire group.

In the inspection step after formation of the wire harness, it is necessary to inspect whether or not the tape is double-wound around the wetted area R. Normally, the same tape is used for the double-wound tape, so it is not easy to visually inspect whether or not it is double-wound. Therefore, conventionally, in order to facilitate the inspection, the one shown in FIG. 7 is provided in Japanese Utility Model Publication No. 6-48676. In the wire harness W / H, in the section to be waterproofed, the wire w is provided in the section from A ′ to B ′.
After wrapping the first tape 2A around the outer periphery of the first tape 2A, the second tape 2B having a different color arrangement from the first tape 2A is wound around the section A-B excluding both ends of the section A'to B '. There is.

According to the wire harness W / H, A to
Since the second tape 2A having a different color arrangement is exposed between A ′ and between B and B ′, it is easy for an operator to visually check whether the tape is double-wound in a later inspection step. Can be inspected.

[0005]

However, in the above wire harness W / H, two types of tapes 2A and 2B having different color arrangements are required, and when the tape is wound, the tapes must be held and wound. Has a bad problem. Moreover, these two types of tapes 2A and 2B are required, resulting in high cost and parts management. Furthermore, when the wire harness is routed to an automobile, the tape 2A having a different color scheme is exposed, which may impair the appearance.

The present invention has been made in view of the above problems, and it is possible to easily inspect that a tape is double-wound without impairing the appearance of the wire harness, and a wire harness of the wire harness. The purpose is to provide a binding inspection method.

[0007]

In order to achieve the above-mentioned object, the present invention is characterized in that, in claim 1, the same tape is wound twice twice in the same region of a wire harness in which a large number of electric wires are bundled.
Exposing a part of the first tape winding layer wound around the outer circumference of the electric wire group directly from the second tape winding layer wound around the outer circumference of the first tape winding layer, and exposing the first tape winding layer. (EN) A wire harness is provided, in which a mark having a different color arrangement from that of a tape is attached to a part for double winding confirmation.

It is preferable that the portion to be marked is located at the end of the region of the double winding portion. (Claim 2) It should be noted that the mark may be provided by exposing the middle of the double winding portion, but in any case, the exposed portion is made as small as possible and there is no problem in waterproofing even if exposed. It is preferable that For example, when the grommet is attached, it is preferable that the inside of the grommet is used as the tip of the double winding portion to expose the first tape winding layer of the tip portion and mark the exposed portion. Further, it is preferable that the mark position is a position that is inconspicuous on the appearance and that the mark is as small as possible enough to be confirmed by the appearance inspection.

According to a third aspect of the present invention, the same area of the wire harness in which a large number of electric wires are bundled is double wound with the same tape and directly wound around the outer circumference of the electric wire group.
When winding the second tape winding layer around the tape winding layer,
Wrap so that a part of the first tape winding layer is exposed, and an erasable mark having a different color scheme from the tape is attached to the exposed part, and the tape becomes a two-layer state by the mark in the inspection step after forming the wire harness. There is provided a method for inspecting binding of a wire harness, characterized by removing the mark after inspecting that the wire is wound.

According to the wire harness binding inspection method of the third aspect, in the inspection step of the wire harness, after the wire is inspected for double winding, the wire harness is removed to remove the mark. There is no mark with a different color in the state of being installed in, and it is possible to prevent the appearance from being impaired.

The mark is preferably made by using a removable material such as chalk or water-based ink. Alternatively, a sheet piece having a color different from that of the tape may be detachably attached, and the sheet piece may be peeled off after the inspection.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 shows a wire harness W / H according to a first embodiment of the present invention. The wire harness W / H has a large number of electric wires w bound by winding a tape 10 made of vinyl chloride, and is routed to an automobile. In the area R exposed to water in the state,
For waterproofing, the tape 10 is half-wrapped and double-wound so as to be the most waterproof and double half-wrapped.

Double winding part 11 of the wire harness W / H
Is composed of a first tape winding layer 12 in which the tape 10 is half-wrapped directly on the outer circumference of the wire group, and a second tape winding layer 13 in which the same tape 10 is half-wrapped on the outer circumference of the first tape winding layer 12. .

The double winding portion 11 exposes a part of the first tape winding layer 12 from the second tape winding layer 13, and the exposed portion 15 of the first tape winding layer 12 is different from the tape 10. Marks 18 having different color arrangements are attached. In this embodiment, one end of the first tape winding layer 12 is connected to the second tape winding layer 1
An exposed portion 15 is provided so as to be slightly projected from one end of 3, and a mark 18 formed of a dot-like mark on the exposed portion 15 is removably attached using chalk or aqueous ink.

Next, a binding process of the double winding portion 11 in the wire harness W / H and a binding inspection method will be described. First, according to the wiring pattern of the wire harness W / H, each wire w is attached to the wiring jig 21 projecting on the wiring drawing board 20.
Wire.

Then, as shown in FIG. 2 (A), the outer periphery of the wetted area R of the wire harness W / H is half-wrapped with the tape 10 to form the first tape winding layer 12, and the tape 10 is formed. Disconnect once. Then, the first tape winding layer 12
The same adhesive tape 10 is used on the outer periphery of the sheet to perform half-wrapping. At the time of winding the tape of the second tape winding layer 13, as shown in FIG. 2B, the tip of the first tape winding layer 12 is partially exposed and half-wrapping is performed. After the tape winding, the mark 18 is attached to the surface of the exposed portion 15 of the first tape winding layer 11. After forming the first tape winding layer 12, the mark 18 may be attached to one end of the first tape winding layer 12, and then the tape may be wound so as to form the second tape winding layer 13 so that the mark 18 can be seen.

Thus, in the double winding part 11, the first
Since the tape winding layer 12 and the second tape winding layer 13 are formed by winding the same tape 10 on a tape, a step of a worker changing the two types of tapes 2A and 2B as in the conventional example. Is unnecessary, so that the binding workability can be improved. Further, it is not necessary to provide a space for managing the two kinds of tapes, and it is possible to reduce costs associated with product management.

As shown in FIGS. 3 (A) and 3 (B), the above 2
The double winding portion 11 is a state in which the outer circumference of the wire group is tape-wound to form the first tape winding layer 12, and the tape 10 is not cut but folded back to tape-wrap the outer circumference of the first tape winding layer 12. In some cases, the second tape winding layer 13 may be formed.

As described above, after the wire harness W / H is completed by winding the tape around the outer circumference of the wire group, the formed wire harness W / H is inspected. In this inspection step, the tape is double-wound in the required area, and the double-winding portion 11
Inspect whether or not the formation. At this time, since the exposed portion 15 of the first tape winding layer 12 is provided with the mark 18 having a different color arrangement from the tape 10, it can be visually inspected at a glance.

As described above, the wire harness W / H 2
After inspecting that the mark is double-wound, the operator removes the mark 18. At this time, since the mark 18 is formed so as to be removable by using chalk or water-based ink, it can be easily erased by the operator wiping the surface of the mark 18 with his / her hand or the like.

As described above, in the wire harness W / H of the first embodiment, since the mark 18 indicating that the wire harness W / H is wound in the two-layer state is removed after the inspection, the wire harness W / H is used for the automobile. In the state in which the wire harness W / H is installed, the appearance of the wire harness W / H is not damaged by the conspicuous mark 18. Therefore, as in the present embodiment, the mark 1
Even when 8 is not attached to the end of the double winding portion but is formed in the intermediate portion of the double winding section R, the mark 18 is removed, and the appearance is impaired in the wired state of the wire harness. There is no.

FIGS. 4A and 4B show a mark 25 used in the wire harness W / H of the second embodiment.
Uses a sheet piece 26 having a different color arrangement from the tape 10. An adhesive 27 is applied to one surface of the sheet piece 26, and a release paper (not shown) is peeled off so as to be attached to the tape. Similar to the first embodiment, the mark 25 is attached after the tape 10 is wound around the wire harness W / H and confirmed in the inspection step, and then peeled off from the wire harness W / H and removed.

FIG. 5 shows a wire harness W / of the third embodiment.
H, and as shown in FIG. 6, the wire harness W /
It is preferably used when H is installed in the tire house 1 of an automobile and the waterproof grommet 30 is attached to the end of the double winding portion 11. Grommet 30
And the wire harness W / H are fixed by the adhesive tape 33.

The wire harness W / H is formed by winding the tape so that the exposed portion 15 of the first tape winding layer 12 is located inside the grommet 30, and the exposed portion 15 is coated with resin paint such as paint or oil-based ink. The non-removable mark 31 is provided by using. Thus, in the wire harness W / H of the third embodiment, the non-removable mark 31 is the grommet 30.
Since it is located inside the vehicle, as in the first embodiment, it is possible to prevent the appearance of the wire harness W / H from being impaired when it is routed to the vehicle.

[0025]

As is apparent from the above description, in the wire harness according to the first aspect of the present invention, a part of the first tape winding layer is exposed at the portion where the tape of the wire harness is double wound. Since the second tape winding layer is provided by winding the tape with the same tape, unlike the conventional example, two kinds of tapes are not required, and the tape changing process can be omitted, The workability of binding the wire harness can be improved. Further, in the inspection process of the wire harness, the exposed portion of the first tape winding layer only needs to be provided with a mark having a color different from that of the tape.
The operator can visually confirm at a glance that the tape is double wound.

In the wire harness according to the second aspect of the present invention, since the exposed portion on which the mark is provided is located at the end of the double winding portion, a waterproof grommet is attached to the end to attach the wire harness. It can be suitably used when penetrating a vehicle body panel. In this case, since the mark is located inside the grommet, it is possible to prevent inconveniences such as deterioration of the outer appearance of the wire harness when the wire harness is installed in the vehicle.

In the wire harness binding inspection method according to the present invention, the mark provided on the exposed portion of the first tape winding layer is provided so as to be removable, and the mark is removed in an inspection step after the wire harness is molded. Since it is configured, it is possible to prevent inconveniences such as deterioration of the appearance in a state where the wire harness is routed to an automobile.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing a wire harness of a first embodiment.

2A and 2B are side views showing a wire harness binding process.

3A and 3B are side views showing another binding process of the wire harness.

FIG. 4 shows a mark used in the second embodiment, (A) is a plan view, and (B) is a sectional view.

FIG. 5 is a sectional view showing a wire harness according to a third embodiment.

FIG. 6 is a schematic view showing a state in which a wire harness is installed in an automobile.

FIG. 7 is a front view showing a conventional wire harness binding structure.

[Explanation of symbols]

 10 Tape 11 Double Winding Part 12 First Tape Winding Layer 13 Second Tape Winding Layer 15 Exposed Part 18 Mark W / H Wire Harness w Electric Wire

Claims (3)

[Claims] 1. The same area of a wire harness in which a large number of electric wires are bundled is wound twice by double winding the same tape, and a part of the first tape winding layer directly wound around the outer circumference of the electric wire group is It is exposed from the second tape winding layer wound around the outer periphery of the first tape winding layer, and a mark having a different color arrangement from the tape is attached to the exposed portion of the first tape winding layer for double winding confirmation. A wire harness characterized by. 2. The wire harness according to claim 1, wherein the portion to be marked is located at the end of the region of the double winding portion. 3. The same area of a wire harness in which a large number of electric wires are bundled is double wound with the same tape, and the second tape winding layer is wound around the outer circumference of the first tape winding layer which is directly wound around the outer circumference of the electric wire group. Sometimes, the tape is wound so that a part of the first tape winding layer is exposed, and an erasable mark having a color scheme different from that of the tape is attached to the exposed portion. A method for inspecting binding of a wire harness, which comprises removing the mark after inspecting that the wire is wound in a state.