JP2022086503A - Wire harness - Google Patents

Abstract

To provide a wire harness capable of suppressing the misalignment of a protective tube with fewer person-hours.SOLUTION: A wiring harness 1 includes a wire 11, a corrugated tube 13 (protective tube) that accommodates and protects the wire 11 inside, a bundling band 14 attached to the wire 11 so as to tighten the wire 11 at a position adjacent to an end opening 131 thereof, and a regulatory part 15 provided on the bundling band 14 that contacts the end opening 131 and regulates the movement of the corrugated tube 13 (protective tube) in an axial direction D12.SELECTED DRAWING: Figure 1

Description

The present invention relates to a wire harness in which an electric wire is housed in a protective tube.

Conventionally, as a wire harness mounted on an automobile or the like and electrically connecting various devices, a wire harness in which an electric wire is protected by a protective tube is known (see, for example, Patent Document 1). In a wire harness provided with such a protective tube, the end opening of the protective tube may be fixed to the electric wire by, for example, tape winding, in order to suppress the positional deviation of the protective tube.

Japanese Unexamined Patent Publication No. 2014-227050

However, fixing work such as tape winding at the end opening of the protective tube is complicated and man-hours, and may be a burden on manufacturing.

Therefore, it is an object of the present invention to pay attention to the above-mentioned problems and to provide a wire harness capable of suppressing man-hours and suppressing misalignment of the protective tube.

In order to solve the above-mentioned problems, the wire harness is a wire harness so as to tighten the electric wire, a protective tube for accommodating and protecting the electric wire inside, and the electric wire at a position adjacent to the end opening of the protective tube. It is characterized by being provided with a binding band attached to the binding band and a regulating portion provided on the binding band that abuts on the end opening of the protective tube and restricts the axial movement of the protective tube. do.

According to the above-mentioned wire harness, it is possible to suppress the man-hours and suppress the positional deviation of the protective tube.

It is a schematic perspective view which shows the wire harness which concerns on 1st Embodiment. It is a perspective view which shows the binding band shown in FIG. 1 in the state before tightening an electric wire. It is a schematic perspective view which shows the wire harness which concerns on 2nd Embodiment. It is a perspective view which shows the binding band shown in FIG. 3 in the state before tightening an electric wire.

Hereinafter, an embodiment of the wire harness will be described. First, the first embodiment will be described.

FIG. 1 is a schematic perspective view showing a wire harness according to the first embodiment.

The wire harness 1 shown in FIG. 1 is mounted on an automobile or the like to electrically connect various devices, and includes an electric wire 11, a connector 12, a corrugated tube 13, and a binding band 14. It is equipped with. A plurality of electric wires 11 are bundled, and a connector 12 is connected to at least one end thereof, and the electric wire 11 is housed in a corrugated tube 13 which is externally arranged so as to be brought closer to the connector 12. The corrugated tube 13 is a resin-made flexible protective tube formed in a bellows shape, and is a portion for accommodating and protecting the electric wire 11 inside. The binding band 14 is a band-shaped member that tightens a plurality of electric wires 11 so as to bundle them. In the present embodiment, the binding band 14 suppresses the positional deviation of the corrugated tube 13 as described below. Has a role to play.

FIG. 2 is a perspective view showing the binding band shown in FIG. 1 in a state before the electric wire is tightened.

First, as shown in FIG. 1, the binding band 14 bundles and tightens a plurality of electric wires 11 at positions adjacent to the end opening 131 on the corrugated tube 13 opposite to the connector 12. It is attached to the electric wire 11. As shown in FIGS. 1 and 2, the binding band 14 has a flexible band-shaped portion 141 and an insertion portion 142, and is integrally molded with a resin. The insertion portion 142 is provided at one end of the strip-shaped portion 141, and the other end of the strip-shaped portion 141 is a lock portion into which the insertion portion 142 is inserted so as to be unable to return in the direction opposite to the insertion direction D11.

Here, in the present embodiment, in the band-shaped portion 141 of the binding band 14 attached to the electric wire 11 as described above, the extending portion that is inserted into the insertion portion 142 and extends through the insertion portion 142 is the next. It is such a regulation part 15. The restricting portion 15 is provided on the wire harness 1 as a portion provided on the binding band 14, and is a portion that abuts on the end opening 131 of the corrugated tube 13 and restricts the movement of the corrugated tube 13 in the axial direction D12. ing. That is, the restricting portion 15 is a strip-shaped portion 141 of the binding band 14, which is a long extending portion pulled out from the insertion portion 142 with a length sufficient to abut the end opening 131 of the corrugated tube 13. .. The strip-shaped portion 141 is pulled out from the insertion portion 142 by a length sufficient to obtain the regulation portion 15, and then the extra length portion is cut off. Then, the corrugated tube 13 is sandwiched between the restricting portion 15 and the connector 12 on the opposite side, so that the movement of the corrugated tube 13 is restricted at both ends thereof.

According to the wire harness 1 of the first embodiment described above, the binding band 14 for tightening the electric wire 11 is provided with a regulating portion 15 for restricting the movement of the corrugated tube 13 in the axial direction D12. By using the binding band 14 with the regulating portion 15, it is possible to suppress the positional deviation of the corrugated tube 13 at the same time by the work of tightening the electric wire 11 with the binding band 14 in substantially one step. That is, according to the above-mentioned wire harness 1, it is possible to suppress the man-hours and suppress the positional deviation of the corrugated tube 13.

Here, in the present embodiment, the regulating portion 15 that regulates the positional deviation of the corrugated tube 13 is an extending portion that extends long from the insertion portion 142 in the binding band 14. According to this configuration, when the electric wire 11 is tightened with the binding band 14, the regulation that regulates the positional deviation of the corrugated tube 13 only by adjusting the pull-out amount of the band-shaped portion 141 from the insertion portion 142 to be longer as described above. Part 15 can be obtained. That is, since the regulation unit 15 can be obtained without requiring any other special configuration, the manufacturing cost of the regulation unit 15 can be suppressed.

This is the end of the description of the first embodiment, and then the second embodiment will be described.

FIG. 3 is a schematic perspective view showing the wire harness according to the second embodiment. Further, FIG. 4 is a perspective view showing the binding band shown in FIG. 3 in a state before the electric wire is tightened. In addition, in these FIGS. 3 and 4, the same reference numerals as those in FIGS. 1 and 2 are attached to the components equivalent to the components of the first embodiment shown in FIGS. 1 and 2. Now, I will omit the duplicate explanation about those equivalent components.

In the wire harness 2 of the present embodiment, a plurality of electric wires 11 extending from the end opening 131 are fastened with a binding band 24 at a position adjacent to the end opening 131 on the corrugated tube 13 opposite to the connector 12. The point that is included is the same as that of the first embodiment described above. However, in the present embodiment, the regulation unit 25 provided on the binding band 24 and restricting the movement of the axial D12 of the corrugated tube 13 is different from that of the first embodiment.

That is, the restricting portion 25 in the present embodiment extends the band-shaped portion 141 drawn out from the insertion portion 142 into the insertion portion 142 into which the flexible band-shaped portion 141 is inserted in the binding band 24, unlike the first embodiment. It is provided separately from the part. The restricting portion 25 is a rib-shaped portion protruding from the insertion portion 142 so as to abut the end opening 131 of the corrugated tube 13. As shown in FIG. 4, the restricting portion 25 of the rib-shaped portion is orthogonal to the insertion direction D11 into the insertion portion 142 and is the extending direction of the strip-shaped portion 141 before being inserted into the insertion portion 142. Projects from the insertion portion 142 in the opposite projecting direction. Then, when the binding band 24 is attached to the electric wire 11, the corrugated tube 13 is sandwiched between the restricting portion 25 protruding from the insertion portion 142 and the connector 12 on the opposite side, so that the movement of the corrugated tube 13 is restricted at both ends thereof. Ru. At this time, in the present embodiment, the band-shaped portion 141 of the binding band 24 is cut off with an extra length portion that is sufficient for tightening the electric wire 11 and leaves a length that is as short as possible.

Needless to say, the wire harness 1 of the second embodiment described above can also suppress the man-hours and the misalignment of the corrugated tube 13 as in the first embodiment described above.

Further, in the present embodiment, the regulating portion 25 for restricting the positional deviation of the corrugated tube 13 is a rib-shaped portion protruding from the insertion portion 142 in the binding band 24. According to this configuration, the electric wire 11 is simply tightened with the binding band 24 without worrying about the amount of withdrawal of the band-shaped portion 141 from the insertion portion 142, and the corrugated portion 25 protrudes from the insertion portion 142 as a rib-shaped portion. The misalignment of the tube 13 can be regulated. That is, since it is not necessary to worry about the amount of drawing out of the band-shaped portion 141 when the electric wire 11 is bundled, the complexity in manufacturing the wire harness 2 is reduced by that amount, and the manufacturing cost of the wire harness 2 is suppressed. be able to.

It should be noted that the first and second embodiments described above merely show typical forms of the wire harness, and the wire harness is not limited to this, and can be variously modified and implemented.

For example, in the above-mentioned first and second embodiments, as an example of the wire harness, wire harnesses 1 and 2 mounted on an automobile or the like and electrically connecting various devices are exemplified. However, the wire harness is not limited to this, and does not ask the specific installation location or the like.

Further, in the first and second embodiments described above, as an example of the wire harness, the connector 12 is connected to one end of the electric wire 11, and the corrugated tube 13 as a protective tube is brought close to the connector 12 to be exteriorized. 1 and 2 are exemplified. In these wire harnesses 1 and 2, regulating portions 15 and 25 are provided in one binding band 14 and 24 for tightening the electric wire 11 at a position adjacent to the end opening 131 on the opposite side of the corrugated tube 13 from the connector 12. ing. However, the wire harness is not limited to these, and the protective tube is externally attached to the electric wire to which the connector is not connected to the end, or even if the connector is connected, the protective tube is located away from the connector. May be an exterior or the like. In these cases, a pair of cable ties will be attached to the wire so that they are adjacent to each of the end openings at both ends of the protective tube, and will be sandwiched between a pair of cable ties provided for each cable tie. The movement of the protective tube will be restricted.

Further, in the above-mentioned first and second embodiments, a flexible corrugated tube 13 formed in a bellows shape is exemplified as an example of the protective tube, but the protective tube is not limited to this. The protective tube may be, for example, a circular tubular protective tube without a bellows, and its specific shape and the like can be appropriately set according to the application and the installation location.

Further, in the above-mentioned first and second embodiments, as an example of the regulating portion, from the regulating portion 15 as an extending portion of the band-shaped portion 141 pulled out from the insertion portion 142 of the binding band 14 and the above-mentioned insertion portion 142. The regulating portion 25 protruding as a rib-shaped portion is exemplified. However, the restricting portion is not limited to these, and is not limited to these, as long as it is provided in a binding band and abuts on the end opening of the protective tube to restrict the axial movement of the protective tube. It does not ask. For example, the regulating portion is not limited to the rib-shaped portion shown in the second embodiment even when it is provided in the insertion portion, and the contact portion with the end opening is provided by devising the size and shape of the insertion portion. It may be possible to establish a regulation unit as a. For example, the length, width, thickness, and other dimensions of the rectangular block-shaped insertion portion may be set to a size that abuts on the end opening, or the shape of the insertion portion may abut on the end opening. It may be set to a shape other than a rectangular block such as an elliptical block or a circular block. However, by adopting a simple form such as a regulating portion 15 as an extending portion of the strip-shaped portion 141 and a regulating portion 25 protruding as a rib-shaped portion from the insertion portion 142, the regulating portion 15 itself or the entire wire harness 2 can be manufactured. The point that the cost can be suppressed is as described in each embodiment.

1,2 Wire harness 11 Wire 12 Connector 13 Corrugated tube (protective tube)
14 Cable ties 15, 25 Restriction part 131 End opening 141 Band-shaped part 142 Insertion part D11 Insertion direction D12 Axial direction

Claims (3)

With electric wires
A protective tube that houses and protects the electric wire inside,
A cable tie attached to the wire so as to tighten the wire at a position adjacent to the end opening of the protective tube.
A regulating portion provided on the binding band that abuts on the end opening of the protective tube and restricts the axial movement of the protective tube.
A wire harness characterized by being equipped with. A flexible band-shaped portion and an insertion portion provided at one end of the band-shaped portion and inserted so that the other end of the band-shaped portion cannot be returned in the direction opposite to the insertion direction. Have
The restricting portion is a strip-shaped portion of the binding band, which is inserted into the insertion portion, extends through the insertion portion, and abuts on the end opening of the protection tube. The wire harness according to claim 1. A flexible band-shaped portion and an insertion portion provided at one end of the band-shaped portion and inserted so that the other end of the band-shaped portion cannot be returned in the direction opposite to the insertion direction. Have
The wire harness according to claim 1, wherein the restricting portion is a rib-shaped portion protruding from the insertion portion so as to abut against the end opening of the protective tube.

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