JP2017192182A - Attachment method of protection net and wire harness with protection net - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology that enables a protection net to be easily attached to a wire harness.SOLUTION: A part of a wire harness 10 is enclosed by a protection net 20 in a circumferential direction DR1 of the wire harness 10. Next, one end part 21 of the protection net 20, which is an end when viewed in an extension direction DR2 of the wire harness, is fixed to the wire harness 10. Then, the protection net 20 is extended along the extension direction DR2 of the protection net 20. Next, the other end part 22 of the protection net 20, which is the other end when viewed in the extension direction DR2, is fixed to the wire harness 10 in a state where the protection net 20 is extended.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a protective net for protecting a wire harness.

  Patent Documents 1 and 2 disclose a protective net for protecting a wire harness.

JP 2011-234484 A JP 2012-228145 A

  In the techniques described in Patent Literatures 1 and 2, when a wide range of the wire harness is protected by the protection net, a long protection net is required. It is not easy to attach a long protective net to the wire harness.

  Then, this invention is made | formed in view of the above-mentioned point, and it aims at providing the technique which can attach a protection net easily with respect to a wire harness.

  The method for attaching a protective net according to the first aspect is a method for attaching a stretchable protective net to a wire harness, wherein (a) in the circumferential direction of the wire harness, a part of the wire harness is A step of surrounding with a protective net; and (b) after the step (a), fixing one end of the protective net in the extending direction of the wire harness to the wire harness, and (c) the step A step of extending the protective net along the extending direction after the step (b); and (d) an extension of the protective net in the protective net with the protective net extended after the step (c). And fixing the other end portion in the existing direction to the wire harness.

  A method for attaching a protective net according to a second aspect is the method for attaching a protective net according to the first aspect, wherein the one end is fixed to the wire harness and is extended in the step (c). In the mesh of the previous protection net, the length in the circumferential direction is larger than the length in the extending direction.

  A method for attaching a protective net according to a third aspect is the method for attaching a protective net according to any one of the first and second aspects, wherein in the step (a), the part of the wire harness is provided. When the protective net is wound around, the protective net surrounds the part in the circumferential direction.

  A method for attaching a protective net according to a fourth aspect is the method for attaching a protective net according to the third aspect, wherein the end of the protective net in the winding direction of the protective net wound around the wire harness Is folded and glued.

  A method for attaching a protective net according to a fifth aspect is the method for attaching a protective net according to any one of the third and fourth aspects, wherein in the step (c), the one end is the In the step (c), the one end is fixed so that the one end is not loosened while the tape is wound around the one end. Tape is wound around the part.

  A method for attaching a protective net according to a sixth aspect is the method for attaching a protective net according to the fifth aspect, wherein in the step (d), the other end is fixed to the wire harness by tape winding. In the step (d), the tape is wound around the other end so that no slack occurs at the other end while the tape is wound around the other end. .

  A wire harness with a protective net according to a seventh aspect includes a stretchable protective net and a wire harness to which the protective net is attached, and the protective net has the wire harness in a circumferential direction of the wire harness. It is attached to the wire harness so as to surround, and both ends of the wire harness in the extending direction are fixed to the wire harness in a state where the protective net is extended along the extending direction. Has been.

  According to the first to sixth aspects, after the stretchable protective net having one end fixed to the wire harness is stretched, the other end of the protective net is fixed to the wire harness. Therefore, the protective net can be easily attached to a wide range of the wire harness.

  In particular, according to the second aspect, the circumferential length of the wire harness in the mesh of the protective net before being stretched is larger than the length in the extending direction of the wire harness in the mesh. It becomes easy to extend in the extending direction of the harness. Therefore, it becomes easier to attach the protective net.

  In particular, according to the third aspect, since the protective net is wound around a part of the wire harness, a part of the wire harness is compared with the case where the wire harness is passed through the protective net formed in a cylindrical shape in advance. Can be easily surrounded by a protective net.

  In particular, according to the fourth aspect, since the end portion in the winding direction of the protective net is folded and bonded, the protective net is hardly frayed.

  In particular, according to the fifth aspect, the tape is applied to the one end so that the one end does not become slack while the tape is wound around the one end of the protective net. Is wound. Thereby, a protection net becomes easy to extend equally along the extension direction. As a result, the wire harness can be appropriately protected.

  In particular, according to the sixth aspect, the tape is applied to the other end so that no slack occurs at the other end while the tape is wound around the other end of the protective net. Is wound. Thereby, the part in which a tape is not wound in a protection net can be tightly wound with respect to a wire harness.

  Moreover, according to the 7th aspect, the wire harness with a protection net | network can be obtained using the attachment method of the protection net | network which concerns on a 1st aspect. Therefore, when obtaining a wire harness with a protection net, the protection net can be easily attached to a wide range of the wire harness.

It is a figure showing a wire harness with a protection net. It is a figure which shows a protection net. It is a figure which shows a protection net. It is a figure which shows the attachment method of the protection net with respect to a wire harness. It is a figure which shows the attachment method of the protection net with respect to a wire harness. It is a figure which shows the attachment method of the protection net with respect to a wire harness. It is a figure which shows the attachment method of the protection net with respect to a wire harness. It is a figure which shows the attachment method of the protection net with respect to a wire harness. It is a figure which shows the attachment method of the protection net with respect to a wire harness.

<Configuration of wire harness with protective net>
FIG. 1 is a diagram illustrating an example of a wire harness 1 with a protective net. In the wire harness 1 with a protective net, a protective net 20 is attached to the wire harness 10. The wire harness 1 with a protective net is disposed in a vehicle such as an automobile, for example. The wire harness 10 is composed of, for example, a plurality of electric wires 11. The wire harness 10 may be composed of one electric wire 11.

  The protection net 20 is a member that protects at least a part of the wire harness 10. The protection net 20 is attached to the wire harness 10 so as to surround the wire harness 10 in the circumferential direction DR1 of the wire harness 10. The protection net 20 covers the area to be protected of the wire harness 10. For example, when the wire harness 10 is disposed in the vehicle, the protective net 20 covers a range in the wire harness 10 that interferes with other components in the vehicle.

  The protective net 20 has elasticity. The protection net 20 is stretched along the extending direction DR2 of the wire harness 10, and both ends of the protection net 20 in the extending direction DR2 are fixed to the wire harness 10. A tape 30 is wound around one end 21 in the extending direction DR2 of the protective net 20 and the wire harness 10. Thereby, the one end 21 is fixed to the wire harness 10 with the tape 30. A tape 40 is wound around the other end 22 of the protective net 20 in the extending direction DR <b> 2 and the wire harness 10. Thereby, the other end 22 is fixed to the wire harness 10 with the tape 40.

<Details of protection net>
FIG. 2 is a view showing the protective net 20 in an initial state before being attached to the wire harness 10. As shown in FIG. 2, the protective net 20 is, for example, a sheet-like member. The material of the protective net 20 is, for example, resin. For example, polypropylene is used as the resin forming the protective net 20. The protective net 20 is formed by a plurality of line portions 23 intersecting in a mesh shape. The intersection 24 where the plurality of line portions 23 intersect is bonded. The intersection 24 is, for example, thermally bonded (fused). The shape of the mesh 25 of the protective net 20 is, for example, a rhombus. In the mesh 25 of the protection net 20 in the initial state, one diagonal 120 is longer than the other diagonal 121. In this example, the thickness of the line portion 23 is such that each side of the rhombus of the mesh 25 is not loosened. The shape of the mesh 25 may be other than a rhombus. Hereinafter, the direction along the extending direction of the diagonal 120 is referred to as a first direction DR11, and the direction along the extending direction of the diagonal 121 is referred to as a second direction DR12.

  Each of both end portions of the protective net 20 in the first direction DR11 is folded and bonded. Thereby, the protection net | network 20 becomes difficult to fray. Each end portion of the protective net 20 in the first direction DR11 is folded back and, for example, thermally bonded (fused) to other portions of the protective net 20. In FIG. 2, the end before being folded is indicated by a two-dot chain line. In FIG. 2, the joined portion 26 is indicated by a thicker line than the other portions.

  FIG. 3 is a diagram illustrating the protection net 20 in a state in which both ends of the protection net 20 in the second direction DR12 are pulled outward along the second direction DR12. When both ends of the second direction DR12 in the protection net 20 in the initial state are pulled outward along the second direction DR12 as indicated by an arrow 200, in the protection net 20, the second direction DR12 Becomes longer and the length of the first direction DR11 becomes smaller. That is, the protective net 20 extends along the second direction DR12 and contracts along the first direction DR11. Thereby, in the mesh | network 25 of the protection net | network 20, the diagonal 120 is shortened and the diagonal 121 is lengthened.

  For the protection net 20 in the initial state, for example, the length of the protection net 20 in the first direction DR11 is 70 mm, the length of the diagonal 120 of the mesh 25 is 7 mm, and the folded width of the end is 7 mm. In this case, when each of both ends of the protection net 20 in the second direction DR12 is pulled outward along the second direction DR12, for example, the length of the protection net 20 in the second direction DR12 is the maximum. The length of the protective net 20 in the first direction DR11 is reduced by 30% at the maximum.

  When the protective net 20 changes from the state shown in FIG. 3 to the state where it is no longer pulled, the protective net 20 shrinks along the second direction DR12 in an attempt to return to the initial state shown in FIG. Although it extends along the direction DR11, it does not always return completely to the initial state.

<Attaching method of protective net to wire harness>
4-7 is a figure which shows the attachment method of the protection net | network 20 with respect to the wire harness 10. FIG. First, as shown in FIG. 4, the protection net 20 in the initial state is wound around the attachment range 100 of the protection net 20 in the wire harness 10. Thereby, a part of the wire harness 10 is surrounded by the protective net 20 in the circumferential direction DR1. For example, the protective net 20 is wound around the attachment range 100 one or more times.

  The protection net 20 is wound around the attachment range 100 so that the diagonal line 121 of the mesh 25 extends along the extending direction DR2. In other words, the protective net 20 is wound around the attachment range 100 so that the diagonal line 120 of the mesh 25 is along the circumferential direction DR1. In the protective net 20 wound around the wire harness 10, both ends in the winding direction are folded and bonded.

  Furthermore, the protection net 20 is wound around the attachment range 100 such that one end 21 in the second direction DR12 of the protection net 20 is located at one end of the extension direction DR2 in the attachment range 100. It is done.

  Next, as shown in FIG. 5, the end 21 of the protective net 20 wound around the attachment range 100 is fixed to the wire harness 10 by, for example, tape winding. This end portion 21 can be said to be one end portion in the extending direction DR <b> 2 in the protective net 20 wound around the attachment range 100. The end portion 21 is fixed to the wire harness 10 by winding the tape 30 around the end portion 21 of the protective net 20 and the wire harness 10.

  Next, as shown in FIG. 6, the protective net 20 is extended until the other end 22 in the extending direction DR <b> 2 of the protective net 20 is located at the other end of the extending direction DR <b> 2 in the attachment range 100. Stretch along the direction DR2.

  Next, as shown in FIG. 7, the other end 22 of the protection net 20 is fixed to the wire harness 10 by, for example, tape winding in a state where the protection net 20 is stretched. The end portion 22 is fixed to the wire harness 10 by winding the tape 40 around the end portion 22 of the protective net 20 and the wire harness 10. Thereby, attachment of the protection net | network 20 with respect to the wire harness 10 is completed, and the wire harness 10 with a protection net | network shown by above-mentioned FIG. 1 is obtained.

  In the above example, when a part of the wire harness 10 is surrounded by the protective net 20 in the circumferential direction DR1, the protective net 20 is wound around a part of the wire harness 10, but the protection is formed in a cylindrical shape in advance. The wire harness 10 may be passed through the net 20. It is easier to wind the protection net 20 around the long wire harness 10 than to pass the long wire harness 10 through the protection net 20 formed in a cylindrical shape in advance. Can be surrounded.

  Further, after winding the tape around the plurality of electric wires 11 of the wire harness 10 by rough winding or the like, the protective net 20 may be attached to the wire harness 10 as described above.

  As described above, when the protective net 20 is attached to the wire harness 10, the stretchable protective net 20 with one end 21 fixed to the wire harness 10 is extended in the extending direction DR2. The other end 22 of the protective net 20 is fixed to the wire harness 10. Thereby, compared with the case where the long protection net without a stretching property is attached to the wire harness 10, the protection net 20 can be easily attached with respect to the wide range of the wire harness 10.

  Moreover, if it says about the wire harness 1 with a protection net shown by FIG. 1, the wire harness 1 with a protection net can be obtained using the attachment method of the protection net 20 shown by said FIG. 4-7. Therefore, when obtaining the wire harness 1 with a protective net, the protective net 20 can be easily attached to a wide range of the wire harness 10.

  Moreover, the attachment range 100 of the wire harness 10 can be easily adjusted by adjusting the amount by which the protective net 20 is extended.

  Further, as shown in FIG. 3 described above, when the protective net 20 extends along the second direction DR12, the protective net 20 contracts along the first direction DR11. Therefore, when the protective net 20 surrounding the wire harness 10 is extended along the extending direction DR2, the inner diameter of the protective net 20 surrounding the wire harness 10 tends to be reduced. Therefore, the protection net 20 bundles the plurality of electric wires 11 of the wire harness 10 by fixing the protection net 20 to the wire harness 10 in a state of being stretched along the extending direction DR2 as in this example. Strength increases. As a result, it can suppress that the some electric wire 11 spreads.

  In the above example, in the mesh 25 of the protection net 20 shown in FIG. 5, the length in the circumferential direction DR1 is larger than the length in the extending direction DR2. That is, in the mesh 25 of the protective net 20 before being stretched, where one end 21 is fixed to the wire harness 10, the length in the circumferential direction DR1 is larger than the length in the extending direction DR2. Thereby, it becomes easy to extend the protective net 20 in the extending direction DR2. Therefore, it becomes easier to attach the protective net 20 to the wire harness 10.

  As shown in FIG. 6, when the end portion 21 of the protective net 20 is fixed to the wire harness 10 by tape winding, the end portion is being wound while the tape 30 is wound around the end portion 21. The tape 30 may be wound around the end 21 so that the slack does not occur in the 21. FIG. 8 is a diagram showing this state. FIG. 8 shows a state in which the tape 30 is wound around the end portion 21 when viewed from the extending direction DR2. In FIG. 8, the wire harness 10 is simply indicated by a circle, and the protective net 20 is indicated by diagonal lines.

  On the other hand, when the end portion 21 is slackened while the tape 30 is wound around the end portion 21, the slack portion 250 is bent and overlaps with other portions as shown in FIG. Thus, the end 21 may be fixed to the wire harness 10. In the protective net 20, a portion where the slack portion 250 is bent and overlaps with another portion is difficult to extend along the extending direction DR2. Therefore, when the end 21 is fixed to the wire harness 10 as shown in FIG. 9, the protective net 20 is less likely to extend uniformly along the extending direction DR2.

  On the other hand, as shown in FIG. 8, when the tape 30 is wound around the end portion 21 so that the end portion 21 is not slackened while the tape 30 is wound around the end portion 21. In addition, after the end 21 is fixed to the wire harness 10, the protective net 20 can be easily extended along the extending direction DR2. Therefore, it can suppress that the location which is not protected by the protection net | network 20 in the part which should be protected of the wire harness 10 arises. As a result, the wire harness 10 can be protected appropriately.

  In addition, even when the end portion 21 is slackened while the tape 30 is being wound around the end portion 21, the end portion 21 has the tape 30 wound around the end portion 21. Can be firmly wound around the wire harness 10.

  On the other hand, in the portion of the protective net 20 where the tapes 30 and 40 are not wound, when the end 21 is fixed to the wire harness 10 as shown in FIG. There is a possibility that it does not wind tightly. As a result, there is a possibility that the force with which the protective net 20 bundles the plurality of electric wires 11 of the wire harness 10 is reduced.

  As shown in FIG. 8, when the tape 30 is wound around the end portion 21 so that the end portion 21 is not slackened while the tape 30 is wound around the end portion 21, Since it is possible to suppress the occurrence of slack in the portion of the protective net 20 where the tapes 30 and 40 are not wound, the portion can be firmly wound around the wire harness 10. Therefore, the force with which the protective net 20 bundles the plurality of electric wires 11 of the wire harness 10 is increased. As a result, it can suppress that the some electric wire 11 spreads.

  As shown in FIG. 7, when the tape 40 is wound around the end portion 22, the end portion 22 is not loosened while the tape 40 is wound around the end portion 22. In addition, the tape 40 may be wound around the end 22. In this case, since it is possible to further suppress the occurrence of slack in the portion of the protective net 20 where the tapes 30 and 40 are not wound, the portion can be more firmly wound around the wire harness 10. . Therefore, it can further suppress that the some electric wire 11 disperses.

  As mentioned above, although the wire harness 1 with a protective net, the wire harness 10, and the protective net 20 were demonstrated in detail, above-described description is an illustration in all the aspects, Comprising: This invention is not limited to it. Absent. The various modifications described above can be applied in combination as long as they do not contradict each other. And it is understood that the countless modification which is not illustrated can be assumed without deviating from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Wire harness with a protection net 10 Wire harness 20 Protection nets 21 and 22 End part 25 Mesh 30,40 Tape

Claims (7)

A method for attaching a stretchable protective net to a wire harness,
(A) in the circumferential direction of the wire harness, a step of surrounding a part of the wire harness with the protective net;
(B) After the step (a), fixing one end of the wire harness in the extending direction of the wire harness to the wire harness;
(C) after the step (b), extending the protective net along the extending direction;
(D) After the step (c), a step of fixing the other end of the protective net in the extending direction to the wire harness with the protective net extended. Mounting method. A method for attaching a protective net according to claim 1,
The one end is fixed to the wire harness, and in the mesh of the protective net before being extended in the step (c), the length in the circumferential direction is larger than the length in the extending direction. Net installation method. A method for attaching a protective net according to any one of claims 1 and 2,
In the step (a), the protective net is wound around the part of the wire harness, whereby the protective net surrounds the part in the circumferential direction. A method for attaching a protective net according to claim 3,
A method for attaching a protective net, wherein an end portion of the protective net in a winding direction of the protective net wound around the wire harness is folded and bonded. A method for attaching a protective net according to any one of claims 3 and 4,
In the step (c), the one end is fixed to the wire harness by tape winding,
In the step (c), the tape is wound around the one end so that the slack does not occur at the one end while the tape is wound around the one end. How to install the protective net. A method for attaching a protective net according to claim 5,
In the step (d), the other end is fixed to the wire harness by tape winding,
In the step (d), the tape is wound around the other end so that no slack occurs at the other end while the tape is wound around the other end. How to install the protective net. A protective net with elasticity,
A wire harness to which the protective net is attached;
The protective net is attached to the wire harness so as to surround the wire harness in the circumferential direction of the wire harness,
A wire harness with a protection net, wherein both ends of the protection net in the extension direction of the wire harness are fixed to the wire harness in a state where the protection net is extended along the extension direction.

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