JP2021015750A - Wire Harness - Google Patents

Abstract

To provide a technique capable of dividing a tape winding part in one winding region.SOLUTION: A wire harness 10 is provided with an electric wire 12 and a plurality of partial tape winding parts 20 (20a to 20e) provided to a winding region R in the electric wire 12. The plurality of partial tape winding parts 20 are formed by winding a partial tape T mutually separated along a longitudinal direction, and in the winding region, regions where the plurality of partial winding parts 20 are provided are different.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to wire harnesses.

Patent Document 1 discloses a technique in which an electric wire bundle is bound by a tape half-wrapped around the electric wire bundle.

Japanese Unexamined Patent Publication No. 2001-332138

In addition, the wire bundle may be easily bundled by spiral winding (also referred to as rough winding) so that the tapes do not overlap. If a series of tapes are spirally wound over many turns, such as half-wrap or rough winding, even if only a part of the tape needs to be rewound in the event of manufacturing failure or repair. , It may be necessary to redo the entire tape winding.

Therefore, it is an object of the present invention to provide a technique capable of dividing a tape winding portion in one winding region.

The wire harness of the present disclosure includes an electric wire and a plurality of partial tape winding portions provided in a winding region of the electric wire, and the plurality of partial tape winding portions are interrupted with each other along a longitudinal direction. It is a wire harness formed by winding a partial tape, and in the winding region, the region where the plurality of partial tape winding portions are provided is different.

According to the present disclosure, the tape winding portion can be divided in one winding region.

FIG. 1 is a perspective view showing a wire harness according to the first embodiment. FIG. 2 is a vertical sectional view showing a wire harness according to the first embodiment. FIG. 3 is a partially enlarged view of FIG. FIG. 4 is a perspective view showing how a partial tape is wound around an electric wire. FIG. 5 is a perspective view showing how the partial tape wound around the electric wire is joined. FIG. 6 is a vertical cross-sectional view showing the wire harness according to the second embodiment. FIG. 7 is a perspective view showing how the partial tape is wound around the electric wire. FIG. 8 is a vertical cross-sectional view showing the wire harness according to the third embodiment.

[Explanation of Embodiments of the present disclosure]
First, embodiments of the present disclosure will be listed and described.

The wire harness of the present disclosure is as follows.

(1) The electric wire and a plurality of partial tape winding portions provided in the winding region of the electric wire are provided, and the plurality of partial tape winding portions are each wound with partial tapes that are interrupted in the longitudinal direction. It is a wire harness that is formed in such a way and has a different region in which the plurality of partial tape winding portions are provided in the winding region. Since a plurality of partial tape winding portions are provided in the winding region, the tape winding portion can be divided in one winding region.

(2) In the winding region, the electric wire may be entirely covered by the plurality of partial tape winding portions. As a result, the exposure of the electric wire in the winding region is suppressed.

(3) The resins in the partial tapes may be bonded to each other in two adjacent partial tape winding portions among the plurality of partial tape winding portions. As a result, the boundary between the partial tape winding portions is closed.

(4) When two partial tape winding portions arranged in order along the longitudinal direction of the electric wire among the plurality of partial tape winding portions are the first partial tape winding portion and the second partial tape winding portion, the first The one-part tape winding part and the second part tape winding part may be independent of each other. As a result, the first partial tape winding portion and the second partial tape winding portion do not overlap, and it is easy to peel off when one of them is poorly wound.

(5) The partial tape is spirally wound in each of the plurality of partial tape winding portions, and one partial tape winding portion is the other portion in two adjacent partial tape winding portions of the plurality of partial tape winding portions. It may overlap the tape winding portion. As a result, the boundary between the two adjacent partial tape winding portions is covered by one partial tape winding portion.

(6) The partial tape forming the plurality of partial tape winding portions may be wound with a gap along the longitudinal direction of the electric wire. As a result, the tape can be easily wound over a wide range of the electric wire.

(7) The winding mode of the partial tape may be the same in the plurality of partial tape winding portions. For example, by winding a plurality of partial tapes at once by one tape winding operation, the winding mode of the plurality of partial tapes becomes the same. In this case, the time required for tape winding is shortened as compared with the case where a continuous tape is spirally wound in the winding area.

[Details of Embodiments of the present disclosure]
Specific examples of the wire harness of the present disclosure will be described below with reference to the drawings. It should be noted that the present invention is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

[Embodiment 1]
Hereinafter, the wire harness according to the first embodiment will be described. FIG. 1 is a perspective view showing a wire harness 10 according to the first embodiment. FIG. 2 is a vertical cross-sectional view showing the wire harness 10 according to the first embodiment. The vertical sectional view in the present disclosure is a sectional view cut along the longitudinal direction of the electric wire 12. Note that the electric wire 12 is not shown as a cross section in FIG. FIG. 3 is a partially enlarged view of FIG. FIG. 3 is an enlarged view of the region A in FIG.

The wire harness 10 is a wiring member mounted on a vehicle for electrically connecting electrical components to each other. The wire harness 10 includes an electric wire 12 and a plurality of partial tape winding portions 20.

The electric wire 12 is a coated electric wire in which an insulating coating is formed around the core wire. The core wire is formed of copper, aluminum, a copper alloy, and an aluminum alloy. The core wire may be formed of a single wire rod, or may be an aggregate wire in which a plurality of strands are twisted together. The insulating coating is formed of a resin such as polyvinyl chloride, polyethylene, or fluororesin. The electric wire 12 has a role of transmitting an electric signal, electric power, or the like.

The wire harness 10 may include at least one electric wire 12. Here, the wire harness 10 includes a plurality of electric wires 12. The plurality of electric wires 12 may all have the same outer diameter, or may include electric wires having different outer diameters. A connector C may be provided at the end of the electric wire 12.

The connector C is a housing made of resin in which the end portion of the electric wire 12 is housed. For example, a terminal is connected to the end of the electric wire 12. The terminal is housed and held in a cavity formed in the housing. When the connector C is connected to the mating connector, the terminal in the connector C is connected to the terminal in the mating connector.

Each end of the plurality of electric wires 12 is housed in a predetermined housing while branching in the middle. As a result, the wire harness 10 is formed in a shape corresponding to the wiring form of the electric wire 12 in the vehicle.

The plurality of partial tape winding portions 20 are formed by winding a plurality of partial tapes T that are interrupted from each other along the longitudinal direction of the tape around an electric wire 12. That is, each partial tape winding portion 20 is formed by winding another partial tape T around the electric wire 12. The partial tape T constituting one partial tape winding portion 20 and the partial tape T constituting the other partial tape winding portion 20 are interrupted in the longitudinal direction of the tape.

In one partial tape winding portion 20, the partial tapes T are continuously connected. Here, a winding method in which the partial tapes T connected in succession are wound around the electric wire 12 will be described.

The method of winding the partial tape T connected to the electric wire 12 is as follows: the winding method in which the partial tape T is wound while the fixing region is displaced along the longitudinal direction of the electric wire 12 and the fastening region along the longitudinal direction of the electric wire 12. It is roughly classified into a winding method in which the partial tape T is wound without slipping. In the former case, the partial tape T wound around the electric wire 12 orbits around the electric wire 12 while shifting its position along the longitudinal direction of the electric wire 12 to form a spiral shape. In the latter case, the partial tape T wound around the electric wire 12 circulates around the electric wire 12 at a fixed position along the longitudinal direction of the electric wire 12 and exhibits a spiral shape. Hereinafter, in the present specification, the former winding method is referred to as spiral winding, and the latter winding method is referred to as fixed position winding.

Further, the spiral winding is a winding method in which a part of the width direction overlaps when the partial tape T orbits the electric wire 12 more than once, and a width direction when the partial tape T orbits the electric wire 12 more than one circumference. It is roughly divided into winding methods that do not overlap with. In the former case, there is no gap between the partial tapes T along the longitudinal direction of the electric wire 12, so that the protection and water stopping property are excellent. Further, as the partial tapes T overlap each other, the thickness of the portion around which the partial tapes T are wound becomes thicker. In the latter case, it can be wound widely while suppressing the amount of the partial tape T used. Further, since the partial tapes T do not overlap each other, the thickness of the portion around which the partial tapes T are wound becomes thin. Hereinafter, in the present disclosure, the former winding method is referred to as overlap winding, and the latter winding method is referred to as non-lap winding. Further, in the overlap winding, the ratio of the width in which the later wound portion overlaps with the total width of the previously wound portion is referred to as a wrap allowance. For example, the overlap winding includes a half wrap winding in which half the width of the partial tape T is overlapped. The wrap allowance for half-wrap winding is half. The non-wrap winding includes a rough winding in which a gap is formed between the partial tapes T in the longitudinal direction of the electric wire 12. From the viewpoint of overlapping of the partial tapes T, the non-wrap winding is a winding method in which the wrap allowance is 0. Further, the fixed position winding is a winding method in which the entire width of the partial tape T is overlapped, and the wrap allowance is 1. For this reason, the fixed position winding may be referred to as an all-lap winding.

The portion wound by the winding method described here can be regarded as the winding portion wound by the winding method. For example, a portion where the partial tape T is wound at a fixed position can be regarded as a fixed position winding portion. Further, the portion where the partial tape T is spirally wound can be regarded as a spirally wound portion.

Needless to say, when the continuous partial tapes T are wound around the electric wire 12, the above winding methods may be appropriately combined.

The plurality of partial tape winding portions 20 are provided in the winding region R of the electric wire 12. At least one winding area is set for the electric wire 12. Such a winding region is, for example, an region between the terminal portion and the branch portion or an region between the branch portion and the branch portion. In at least one winding region of the electric wire 12, there is a winding region R in which a plurality of partial tape winding portions 20 are provided. The dimension of one winding region R along the longitudinal direction of the electric wire 12 is larger than the width dimension of the tape. That is, one partial tape winding portion 20 cannot cover one winding area R. One winding region R is a region in which the tape is conventionally spirally wound over many turns.

In the winding region R, the regions where the plurality of partial tape winding portions 20 are provided are different. In the winding region R, the regions where the plurality of partial tape winding portions 20 are provided are sequentially deviated along the longitudinal direction of the electric wire 12. At this time, a part of the regions provided with the adjacent partial tape winding portions 20 may or may not overlap. The regions provided with the adjacent partial tape winding portions 20 may be separated along the longitudinal direction of the electric wire 12.

Here, in the winding region R, the electric wire 12 is entirely covered with a plurality of partial tape winding portions 20. As a result, the electric wire 12 is not exposed in the winding region R. The partial tape T is wound so that the electric wire 12 is not exposed in each partial tape winding portion 20, and the regions provided with the adjacent partial tape winding portions 20 overlap or are in contact with each other, so that the electric wire 12 is wound in the winding region R. Is entirely covered by a plurality of partial tape winding portions 20.

Further, in the present disclosure, of the plurality of partial tape winding portions 20, two partial tape winding portions 20 arranged in order along the longitudinal direction of the electric wire 12 are referred to as a first partial tape winding portion and a second partial tape winding portion. Here, the first partial tape winding portion and the second partial tape winding portion are independent of each other. The fact that the first partial tape winding portion and the second partial tape winding portion are independent of each other means that the first partial tape winding portion and the second partial tape winding portion do not overlap with each other. The first partial tape winding portion and the second partial tape winding portion may be in contact with each other along the longitudinal direction of the electric wire 12, or may be separated from each other.

Therefore, here, the adjacent partial tape winding portions 20 do not overlap and are not separated from each other. Adjacent partial tape winding portions 20 are in contact with each other.

In the two adjacent partial tape winding portions 20 of the plurality of partial tape winding portions 20, the resins in the partial tape T are bonded to each other. Hereinafter, the joint portion is referred to as a joint portion 24. The joint 24 is formed on the side edge of the partial tape T. Therefore, the joint portion 24 extends along the circumferential direction of the electric wire 12.

As shown in FIG. 3, the partial tape T has a multi-layer structure having a base material layer BL and an adhesive layer AL. The base material layer BL is a layer that supports the adhesive layer AL. The adhesive layer AL is a layer that is adhered to the electric wire 12. The adhesive layer AL may have adhesiveness. The portion to be joined in the partial tape T may be the adhesive layer AL, the base material layer BL, or both. FIG. 3 shows an example in which the base material layer BL is not bonded but the adhesive layer AL is bonded. As in the example shown in FIG. 3, when only one of the adhesive layer AL and the base material layer BL is bonded, a boundary may remain in the layer that is not bonded. On the other hand, when both the adhesive layer AL and the base material layer BL are joined, a boundary may not remain between the adjacent partial tape winding portions 20.

The materials constituting the base material layer BL and the adhesive layer AL are not particularly limited, but it is preferable that at least one layer is made of a thermoplastic resin. The joint portion 24 is formed by heating and melting the thermoplastic resin. The thermoplastic resin is not particularly limited, but may be, for example, one that can be bonded by heat treatment at 120 to 140 degrees. The thermoplastic resin may be, for example, polyamide.

The thicknesses of the base material layer BL and the adhesive layer AL are not particularly limited and can be set as appropriate. The thickness of the layers to be joined may be, for example, 0.3 mm or more.

The winding mode of the plurality of partial tapes T is the same. Here, the winding mode means that the number of turns of the partial tape T and the winding method are the same. Further, when the partial tape T is spirally wound, it means that the spiral pitches are the same. When the spiral pitches are the same, for example, the following three cases are included. The first is the case where the wrap allowance is the same in the case of overlap winding. The second is the case of non-wrap winding with no gap. Thirdly, in the case of rough winding, the gaps between the partial tapes T are the same.

The number of laps of the partial tape T is not particularly limited, but may be, for example, as follows. The lower limit of the number of laps is preferably one lap. That is, the number of laps should be one or more. As a result, it is possible to prevent a region where the partial tape T is not wound from being generated in a part of the electric wire 12 in the circumferential direction. The upper limit of the number of laps is preferably 2 or 3 laps. That is, the number of laps is preferably 2 or less or 3 or less. As a result, the winding work of each partial tape T is shortened, and each partial tape winding portion 20 can be easily formed.

More specifically, in the example shown in FIG. 1, five partial tape winding portions 20a, 20b, 20c, 20d, and 20e are provided. The five partial tape winding portions 20a, 20b, 20c, 20d, and 20e are provided so as to be offset in order along the longitudinal direction of the electric wire 12. The partial tapes T constituting the five partial tape winding portions 20a, 20b, 20c, 20d, and 20e are the same type of partial tapes T. The partial tapes T constituting the five partial tape winding portions 20a, 20b, 20c, 20d, and 20e may be different types of partial tapes T. The five partial tape winding portions 20a, 20b, 20c, 20d, and 20e have the same winding mode of the partial tape T. Here, the partial tape T is wound at a fixed position in the five partial tape winding portions 20a, 20b, 20c, 20d, and 20e. The partial tape T is wound slightly more than one round. In one partial tape T, the winding end portion overlaps the winding start portion.

The partial tape winding portion 20a and the partial tape winding portion 20b are in contact with each other. The partial tape T of the partial tape winding portion 20a and the partial tape T of the partial tape winding portion 20b are joined. The partial tape winding portion 20b and the partial tape winding portion 20c are in contact with each other. The partial tape T of the partial tape winding portion 20b and the partial tape T of the partial tape winding portion 20c are joined. The partial tape winding portion 20c and the partial tape winding portion 20d are in contact with each other. The partial tape T of the partial tape winding portion 20c and the partial tape T of the partial tape winding portion 20d are joined. The partial tape winding portion 20d and the partial tape winding portion 20e are in contact with each other. The partial tape T of the partial tape winding portion 20d and the partial tape T of the partial tape winding portion 20e are joined. Of these five partial tape winding portions 20a, 20b, 20c, 20d, and 20e, two partial tape winding portions 20 arranged in order along the longitudinal direction of the electric wire 12 are the first partial tape winding portion and the second partial tape winding portion. It is said that.

<Manufacturing method>
The manufacturing method of the wire harness 10 will be described. FIG. 4 is a perspective view showing how the partial tape T is wound around the electric wire 12. FIG. 5 is a perspective view showing how the partial tape T wound around the electric wire 12 is joined.

First, the partial tape T is wound around the electric wire 12. Here, the five partial tapes T are wound at a fixed position. At this time, as shown in FIG. 4, five partial tapes T may be wound together. As a result, a plurality of partial tapes T are wound at one time, and the number of laps of each partial tape T is reduced. Therefore, the time required for the tape winding operation can be shortened as compared with the case where the tape is spirally wound around the same winding area R. Further, by winding the five partial tapes T at once, the winding mode of the five partial tapes T is easily the same. When the five partial tapes T are wound together, the five partial tapes T are started to be wound in a line so as to be in contact with each other. Then, it is wound at a fixed position up to the end of winding.

Of course, the plurality of partial tapes T may be wound in order instead of being wound at once. Further, as shown in FIG. 4, the partial tape T may be wound with one end connected to the tape winding body TR, and then the winding end portion may be separated from the tape winding body TR. The partial tape T may be previously separated from the tape winding body TR to have a predetermined winding length. The tape winding operation may be performed manually. The tape winding operation may be performed by an automatic tape winding machine.

After the plurality of partial tapes T are wound around the electric wire 12, the joint portion 24 is formed next. Here, as shown in FIG. 5, the partial tape T is heated by the heating appliance 80. The heating method is not particularly limited, and may be, for example, warm air, a heater, a heating press, or the like. By forming the joint portion 24, the partial tape winding portion 20 is completed.

<Effects, etc.>
According to the wire harness 10 configured as described above, since the plurality of partial tape winding portions 20 are provided in different regions in the winding region R, the tape winding portion can be divided in one winding region R. ..

Since the electric wire 12 is entirely covered with the plurality of partial tape winding portions 20 in the winding region R, the exposure of the electric wire 12 in the winding region R is suppressed.

In each partial tape winding portion 20, the partial tape T is wound at a fixed position slightly more than one circumference. Therefore, the exposure of the electric wire 12 is suppressed in each partial tape winding portion 20. Further, as compared with the case where the tape is half-wrapped over the entire winding region R, the thickness of the portion of the wire harness 10 where the tape is wound becomes thinner.

In the two adjacent partial tape winding portions 20 of the plurality of partial tape winding portions 20, the resins in the partial tape T are bonded to each other. Therefore, the boundary between the partial tape winding portions 20 is closed.

The area where the first partial tape winding portion is provided and the area where the second partial tape winding portion is provided are independent of each other. Therefore, the first partial tape winding portion and the second partial tape winding portion do not overlap, and when one is poorly wound, the other is easily peeled off.

Further, the winding mode of the plurality of partial tapes T is the same. For example, by winding the plurality of partial tapes T at once by one tape winding operation, the winding mode of the plurality of partial tapes T becomes the same. When a plurality of partial tapes T are wound together by a single tape winding operation, the time required for tape winding is shortened as compared with the case where a continuous tape is spirally wound in the winding area R.

[Embodiment 2]
The wire harness according to the second embodiment will be described. FIG. 6 is a partial vertical sectional view showing the wire harness 110 according to the second embodiment. In FIG. 6, the right side of the paper surface is a cross-sectional view and the left side of the paper surface is a plan view with respect to the line L. In the description of the present embodiment, the same reference numerals are given to the components as described above, and the description thereof will be omitted. The same applies to the following embodiments.

The wire harness 110 is different from the wire harness 10 in that the partial tape T is spirally wound around the partial tape winding portion 120. Such partial tape T may be overlap-wound or non-wrap-wound. Here, the electric wire 12 is not exposed in the partial tape winding portion 120. Therefore, it is preferable that the partial tape T is overlap-wound or non-wrapped without a gap. In the example shown in FIG. 6, the partial tape T is half-wrapped, but the wrapping allowance can be set as appropriate.

Further, here, the electric wire 12 is not exposed even between the two adjacent partial tape winding portions 120. At this time, in two adjacent partial tape winding portions 120, a part of one partial tape winding portion 120 overlaps with a part of the other partial tape winding portion 120. As a result, the exposure of the electric wire 12 is suppressed between the two adjacent partial tape winding portions 120. Here, one end in the winding direction of the first partial tape winding portion overlaps with one end in the winding direction of the second partial tape winding portion.

At this time, the partial tape T is overlapped and wound here. Therefore, in one partial tape winding portion 120, both ends of the partial tape T along the winding direction can be easily recognized as a winding start portion and a winding end portion. That is, when the partial tapes T are wound in an overlapping manner, the end portion connected to the portion located on the inner side (electric wire 12 side) of the overlapping portions is the winding start portion, and the end portion connected to the portion located on the outer side. Is the end of winding. On the other hand, when the partial tape T is wound non-wrapped, the partial tape T does not overlap, so that the winding start portion and the winding end portion do not have to be distinguished.

The winding end portion of the first partial tape winding portion overlaps with the winding start portion of the second partial tape winding portion. The winding start portion in the first partial tape winding portion and the winding start portion in the second partial tape winding portion are separated from each other along the longitudinal direction of the electric wire 12. The upper limit of the distance between the winding start portion in the first partial tape winding portion and the winding start portion in the second partial tape winding portion is the width dimension of the non-overlapping portion of the partial tape T. The width dimension of the non-overlapping portion of the partial tape T is the value obtained by multiplying the width dimension of the partial tape T by the difference obtained by subtracting the wrap allowance from 1.

Of the plurality of partial tape winding portions 120, the partial tape winding portion arranged on the side opposite to the first partial tape winding portion with respect to the second partial tape winding portion is referred to as the third partial tape winding portion. The winding end portion in the first partial tape winding portion does not overlap with the winding start portion in the third partial tape winding portion. The winding end portion in the second partial tape winding portion overlaps with the winding start portion in the third partial tape winding portion.

More specifically, in the example shown in FIG. 6, five partial tape winding portions 120a, 120b, 120c, 120d, and 120e are arranged in order along the longitudinal direction of the electric wire 12. The partial tapes T are overlapped and wound in each of the five partial tape winding portions 120a, 120b, 120c, 120d, and 120e. The partial tape T is half-wrapped twice around each of the five partial tape winding portions 120a, 120b, 120c, 120d, and 120e. The winding mode of the partial tape T in the five partial tape winding portions 120a, 120b, 120c, 120d, and 120e is the same.

The winding start portions of the five partial tape winding portions 120a, 120b, 120c, 120d, and 120e are separated from each other along the longitudinal direction of the electric wire 12. The winding end portion of the partial tape winding portion 120a overlaps the winding start portion of the partial tape winding portion 120b. The winding end portion of the partial tape winding portion 120a does not overlap with the winding start portion of the partial tape winding portions 120c, 120d, 120e. The winding end portion of the partial tape winding portion 120b overlaps the winding start portion of the partial tape winding portion 120c. The winding end portion of the partial tape winding portion 120b does not overlap with the winding start portion of the partial tape winding portions 120d and 120e. The winding end portion of the partial tape winding portion 20c overlaps the winding start portion of the partial tape winding portion 120d. The winding end portion of the partial tape winding portion 120c does not overlap with the winding start portion of the partial tape winding portion 120e. The winding end portion of the partial tape winding portion 120d overlaps the winding start portion of the partial tape winding portion 120e. Of these five partial tape winding portions 120a, 120b, 120c, 120d, and 120e, two partial tape winding portions 20 arranged in order along the longitudinal direction of the electric wire 12 are the first partial tape winding portion and the second partial tape winding portion. It is said that. Of the five partial tape winding portions 120a, 120b, 120c, 120d, and 120e, the three partial tape winding portions 20 arranged in order along the longitudinal direction of the electric wire 12 are the first partial tape winding portion and the second partial tape winding portion. Part and third part Tape winding part.

Further, the wire harness 110 is different from the wire harness 10 in that the joint portion 24 is not provided. That is, here, the partial tape winding portion 120a and the partial tape winding portion 120b are not joined. The partial tape winding portion 120b and the partial tape winding portion 120c are not joined. The partial tape winding portion 120c and the partial tape winding portion 120d are not joined. The partial tape winding portion 120d and the partial tape winding portion 120e are not joined.

<Manufacturing method>
A method of manufacturing the wire harness 110 will be described. FIG. 7 is a perspective view showing how the partial tape T is wound around the electric wire 12.

The partial tape T is wound around the electric wire 12. Here, the five partial tapes T are overlapped and wound. At this time, as shown in FIG. 7, five partial tapes T may be wound together. As a result, as compared with the case where the tape is spirally wound around the same winding region R, a plurality of partial tapes T are wound at one time, and the number of turns of each partial tape T is reduced, so that the tape winding is applied. The time can be shortened. Further, by winding the five partial tapes T at once, the winding mode of the five partial tapes T is easily the same.

When the five partial tapes T are wound together, the five partial tapes T are started to be wound apart from each other as shown in FIG. As a result, the winding start portions of the five partial tapes T are separated from each other along the longitudinal direction of the electric wire 12. The spacing between the adjacent partial tapes T can be set as appropriate. For example, the distance between adjacent partial tapes T may be 10 mm or less. With the five partial tapes T separated from each other, the winding end portion in the four partial tape winding portions 120a, 120b, 120c, 120d is the winding start portion in the adjacent four partial tape winding portions 120b, 120c, 120d, 120e. The five partial tapes T are overlapped and wound until they overlap with each other. Here, the five partial tapes T are wound two times in a half-wrap winding.

Of course, the plurality of partial tapes T may be wound in order instead of being wound at once. In this case, the partial tape T may be wound so that the winding start portion in one partial tape winding portion overlaps the winding end portion in the other partial tape winding portion. Further, as shown in FIG. 7, the partial tape T may be wound with one end connected to the tape winding body TR, and then the winding end portion may be separated from the tape winding body TR. The partial tape T may be previously separated from the tape winding body TR to have a predetermined winding length. The tape winding operation may be performed manually. The tape winding operation may be performed by an automatic tape winding machine.

Since the joint portion 24 is not formed in this example, the heating operation is omitted. When the joint portion 24 is formed in this example, the heating operation may be performed after the tape winding operation.

According to the wire harness 110, since the boundary between the two adjacent partial tape winding portions 120 is covered by the one partial tape winding portion 120, it is possible to prevent the electric wire 12 from being exposed between the two adjacent partial tape winding portions 120. Will be done.

[Embodiment 3]
The wire harness according to the third embodiment will be described. FIG. 8 is a vertical cross-sectional view showing the wire harness 210 according to the third embodiment.

The wire harness 210 is different from the wire harnesses 10 and 110 in that a plurality of partial tapes T are wound with a gap along the longitudinal direction of the electric wire 12.

In the example shown in FIG. 8, the partial tape T is wound at a fixed position in the partial tape winding portion 220. In this case, it is preferable that the partial tape winding portions 220 are provided at intervals. The distance between the partial tape winding portions 220 is preferably equal to or less than the width dimension of the tape.

However, each partial tape T may be spirally wound. The spiral winding may be an overlap winding or a non-wrap winding. When the partial tape T is wound in an overlapping manner or non-wrapped without a gap, it is preferable that the adjacent partial tape winding portions are provided at intervals as in the case where the partial tape T is wound at a fixed position.

The partial tape T may be roughly wound. In this case, it is sufficient that the gap in one partial tape winding portion is not closed by the other partial tape winding portion. Further, along the longitudinal direction of the electric wire 12, the range of one partial tape winding portion 220 of the two adjacent partial tape winding portions 220 may overlap or overlap with the range of the other partial tape winding portion 220. It does not have to be.

More specifically, in the example shown in FIG. 8, the five partial tape winding portions 220a, 220b, 220c, 220d, and 220e are arranged in order along the longitudinal direction of the electric wire 12. In each of the five partial tape winding portions 220a, 220b, 220c, 220d, and 220e, the partial tape T is wound at a fixed position slightly more than one circumference. The winding mode of the partial tape T in the five partial tape winding portions 220a, 220b, 220c, 220d, 220e is the same.

The wire harness 210 is formed, for example, by winding a plurality of partial tapes T at a fixed position in a state of being arranged side by side as shown in FIG. According to such a wire harness 210, since a plurality of partial tapes T are wound with a gap along the longitudinal direction of the electric wire 12, the tape can be easily wound over a wide range of the electric wire 12.

[Modification example]
So far, it has been described that five partial tape winding portions are provided in one winding region R, but this is not an essential configuration. In one winding region R, the number of partial tape winding portions may be two, three, or four, or may be six or more. The number of partial tape winding portions can be set according to the size of the winding area R and the like. At this time, if the number of partial tapes wound at one time changes, it can be easily dealt with by increasing or decreasing the number of tape winding bodies TR.

It should be noted that the configurations described in each of the above-described embodiments and modifications can be appropriately combined as long as they do not conflict with each other.

10, 110, 210 Wire harness 12 Wire 20, 20a, 20b, 20c, 20d, 20e Partial tape winding part 120, 120a, 120b, 120c, 120d, 120e Partial tape winding part 220, 220a, 220b, 220c, 220d, 220e Partial tape winding part 24 Joint part 80 Heating equipment R Winding area C Connector T Partial tape TR Tape winding body BL Base material layer AL Adhesive layer

Claims (7)

With electric wires
A plurality of partial tape winding portions provided in the winding region of the electric wire, and
With
The plurality of partial tape winding portions are formed by winding partial tapes that are interrupted from each other along the longitudinal direction.
A wire harness in which the area where the plurality of partial tape winding portions are provided is different in the winding area. The wire harness according to claim 1.
A wire harness in which the electric wire is entirely covered by the plurality of partial tape winding portions in the winding region. The wire harness according to claim 2.
A wire harness in which the resins of the partial tapes are joined to each other in two adjacent partial tape winding portions of the plurality of partial tape winding portions. The wire harness according to claim 2 or 3.
When two partial tape winding portions arranged in order along the longitudinal direction of the electric wire among the plurality of partial tape winding portions are the first partial tape winding portion and the second partial tape winding portion, the first partial tape winding portion is used. A wire harness in which the winding portion and the second portion tape winding portion are independent of each other. The wire harness according to claim 2 or 3.
The partial tape is spirally wound in each of the plurality of partial tape winding portions.
A wire harness in which one partial tape winding portion overlaps the other partial tape winding portion in two adjacent partial tape winding portions among the plurality of partial tape winding portions. The wire harness according to claim 1.
A wire harness in which partial tapes forming the plurality of partial tape winding portions are wound with a gap along the longitudinal direction of the electric wire. The wire harness according to any one of claims 1 to 6.
A wire harness in which the winding mode of the partial tape is the same in the plurality of partial tape winding portions.

Images