JP2017189002A - Wire harness exterior body and wire harness with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of steps for assembling a wire harness to a vehicle body, and reduce the number of components for assembling.SOLUTION: A wire harness exterior body 20 comprises: a rectangular plate part 21 that is formed in a rectangular form and has a size of a length in a lateral direction to be wound so that both ends are overlapped to an outer peripheral surface of an electric wiring group W, and in which perforation-like slits 22 extended in the longitudinal direction of the electric wiring group W are arranged side by side with a predetermined interval in the lateral direction; a plurality of lock pieces 23 that is integrally extended in an outer direction of the lateral direction from one end part 21a of the lateral direction of the rectangle plate part 21, includes a predetermined interval in the longitudinal direction, and includes a lock craw 23b that becomes a state of being inserted to the slit 22 at a tip; and a plurality of clip parts 25 that is integrally provided on a surface as an outer surface side in winding of the electric wiring group W of the rectangle plate part 21, and is fixed to an attachment hole 31 provided to a steering hanger beam 30.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wire harness exterior body for attaching a wire harness including an electric wire group to a vehicle body and a wire harness including the same.

  Conventionally, band clips have been used for assembling a wire harness to a vehicle body. Such a band clip usually includes a band portion for winding a group of wires covered by an exterior material such as a corrugated tube, and a vehicle body locking portion for mounting in a mounting hole provided in the vehicle body, and a wire harness. Is to be assembled to the car body.

  FIG. 7 shows an example in which a wire harness is assembled using a band clip to a steering hanger beam that is horizontally mounted in the vehicle body width direction and is a member for attaching an instrument panel to the body. In this example, the wire harness is assembled to the steering hanger beam in the following procedure.

  First, a corrugated tube is sheathed on the wire group. Next, the wire group is wound around the corrugated tube with a band clip. And the anchor as a vehicle body latching | locking part provided in the band clip is inserted in the attachment hole formed in the steering hanger beam, and a wire harness is fixed with respect to a steering hanger beam.

  As another example, a band clamp mounting structure described in Patent Document 1 is also known. In the example of Patent Document 1, the wire harness 1 is sheathed with the nonwoven fabric sheathing material 3, the outer peripheral surface of the nonwoven fabric sheathing material 3 is wound with the band clamp 5, and the vehicle body locking portion 8 of the band clamp 5 is secured to the locking hole of the vehicle body panel P. The band clamp 5 is locked to the vehicle body panel P by being inserted into H.

JP 2012-57741 A

  However, the assembly examples of the wire harness on the vehicle body side are as follows: (1) The wire group is sheathed with an exterior material, (2) A band clip or the like is wound around the exterior material, (3) The vehicle body, etc. This involves many steps of inserting the vehicle body locking portion of the band clip, and there is a problem that the number of man-hours for assembly work is large and the work itself is not easy.

  Furthermore, in order to assemble the wire harness to the vehicle body, it is necessary to prepare a corrugated tube and a band clip separately, and there has been a problem that the number of parts cannot be reduced.

  The present invention has been made to solve the above-described problems, and can provide a wire harness exterior body that can reduce the number of man-hours for assembling the wire harness to the vehicle body and can reduce the number of parts for assembly. It aims at providing the wire harness provided with.

  In order to achieve the above object, the wire harness exterior material according to the present invention is formed in a long rectangular shape, and the length in the short direction winds around the wire group, and further, both ends overlap the outer peripheral surface of the wire group. A rectangular plate portion that is wound around and has a perforated slit extending in the longitudinal direction of the electric wire group and arranged in the short direction with a required interval, and a short side of the rectangular plate portion A plurality of locking pieces provided at the distal ends with locking claws inserted into the slits integrally extending from a plurality of locations that are spaced apart from each other at a required interval at one end in the direction. A plurality of clip portions that are integrally provided on a surface on the outer surface side of the rectangular plate portion when the plate portion is wound around the electric wire group, and are fixed to mounting holes provided in the vehicle body. Has been.

  With this configuration, when the wire harness is wound around the rectangular plate portion, the wire harness exterior body according to the present invention is locked to the slit of the rectangular plate portion, and the clip portion is fixed to the vehicle body to fix the body to the vehicle body. It is assembled. Therefore, the number of parts can be reduced and the number of parts can be reduced as compared with the case where the clip is attached to the vehicle body after the exterior material is passed through the wire group and the clip for fixing the vehicle is assembled to the exterior material. can do.

  The wire harness according to the present invention includes an electric wire group and the wire harness exterior body, wherein the rectangular plate portion is wound around the electric wire group, the lock claw is locked in a state of being inserted into the slit, and the clip The portion is inserted into a mounting hole provided in the vehicle body.

  With this configuration, in the wire harness according to the present invention, the rectangular plate portion is wound around the electric wire group, the lock claw is inserted into the slit, and the clip portion is inserted into the mounting hole provided in the vehicle body. It can be assembled to the car body. Therefore, the number of parts can be reduced and the number of parts can be reduced as compared with the case where the clip is attached to the vehicle body after the exterior material is passed through the wire group and the clip for fixing the vehicle body is assembled to the exterior material. can do.

  ADVANTAGE OF THE INVENTION According to this invention, the man-hour of the assembly | attachment with respect to the vehicle body of a wire harness can be reduced, and the number of parts for assembly can be reduced.

It is a perspective view which shows the state before winding an electric wire group with the wire harness exterior body which concerns on embodiment of this invention. It is sectional drawing which shows the clip part of the wire harness exterior body which concerns on embodiment of this invention. It is a perspective view which shows the state before attaching the wire harness which concerns on embodiment of this invention to a steering hanger beam. It is sectional drawing which shows the state before attaching the wire harness which concerns on embodiment of this invention to a steering hanger beam. It is a perspective view which shows the state which attached the wire harness which concerns on embodiment of this invention to the steering hanger beam. It is sectional drawing which shows the state which attached the wire harness which concerns on embodiment of this invention to the steering hanger beam. It is a perspective view which shows the state before fixing the wire harness which attached the conventional exterior material and the clip to a steering hanger beam.

  Hereinafter, embodiments of a wire harness exterior body and a wire harness according to the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a state before the wire group W is wound around the wire harness exterior body 20 according to the embodiment of the present invention and fixed to the steering hanger beam 30.

  The wire harness exterior body 20 includes a rectangular plate portion 21, a plurality of lock pieces 23, and a plurality of clip portions 25. The wire harness exterior body 20 is obtained by preforming a non-woven fabric and molded, and the rectangular plate portion 21, the lock piece 23, and the clip portion 25 are all formed integrally.

  As a nonwoven fabric, the nonwoven fabric which can be hardened by passing through a heating process can be used. As such a non-woven fabric, one containing basic fibers that are intertwined with each other and an adhesive resin (also called a binder) can be used. The adhesive resin is a resin having a melting point (for example, 110 to 115 degrees Celsius) lower than the melting point of the basic fiber.

  By heating such a nonwoven fabric to a processing temperature lower than the melting point of the basic fiber and higher than the melting point of the adhesive resin, the adhesive resin melts and soaks between the basic fibers. Thereafter, when the temperature of the nonwoven fabric becomes lower than the melting point of the adhesive resin, the adhesive resin solidifies in a state where the basic fibers are bonded to each other. As a result, the nonwoven fabric becomes harder than the state before heating and is maintained in the molded shape during heating.

  By using a non-woven fabric as the material of the wire harness exterior body 20, processing and molding can be facilitated, and the material cost can be reduced compared to a conventional exterior body such as a resin corrugated tube.

  The rectangular plate portion 21 is formed in a long rectangle, and is formed in such a size that the length in the short direction is wound around the electric wire group W so as to overlap both ends on the outer peripheral surface of the electric wire group. The rectangular plate portion 21 has a perforated slit 22 extending in the longitudinal direction of the electric wire group W. A plurality of slits 22 are provided on the rectangular plate portion 21 so as to be lined up with a predetermined interval in the short direction. Here, the longitudinal direction of the rectangular plate portion 21 is a direction parallel to the electric wire group W, and the short side direction is a direction perpendicular to the longitudinal direction on a plane formed by the rectangular plate portion 21.

  By forming the slit 22 in the rectangular plate portion 21, the rectangular plate portion 21 can be easily rounded when the wire group W is wound, and the rectangular plate portion can be obtained by inserting the lock claw 23 b into the slit 22. It becomes possible to fix to the state which wound the electric wire group W by 21.

  The lock piece 23 has a lock post 23a and a lock claw 23b. The lock column 23a is provided so as to extend outward in the short direction from the one end portion 21a in the short direction of the rectangular plate portion 21, and has a predetermined interval in the longitudinal direction. In the present embodiment, two lock pillars 23a are provided. However, at least two lock pillars 23a may be provided, and two or more lock pillars 23a may be provided in consideration of fixing stability when the rectangular plate portion 21 is wound. The interval between adjacent lock pillars 23a is about 10 cm or more.

  The lock claw 23b is a bowl-shaped part provided at the tip of the lock column 23a. By inserting the lock claw 23b into the slit 22, the lock piece 23 is fixed to the slit 22, and the rectangular plate portion 21 winds the wire group W. It is possible to hold in the state. The length of the lock claw 23b is arbitrary, but if it is set longer, the stability when the lock piece 23 is fixed to the slit 22 is improved.

  A plurality of clip portions 25 are integrally formed on the outer surface when wound around the electric wire group W of the rectangular plate portion 21, that is, the lower surface in FIG. The clip part 25 has a clip post 25a and an anchor 25b. The clip column 25a is a columnar member formed on a surface that becomes the outer surface side when wound around the electric wire group W of the rectangular plate portion 21. The clip portion 25 is provided at a position corresponding to the positions of the plurality of mounting holes 31 provided in the steering hanger beam 30. Each adjacent clip part 25 is provided at intervals of 200 mm or more.

  The anchor 25b is formed at the tip of the clip post 25a in a conical shape downward with respect to the rectangular plate portion 21, and can be inserted and locked into the mounting hole 31 of the steering hanger beam 30. In the present embodiment, the shape of the anchor 25b is a conical shape. However, in accordance with the shape of the mounting hole 31, for example, a shape that can be locked to a mounting hole such as a pyramid shape may be used.

  Since the wire harness exterior body 20 is formed so that the rectangular plate portion 21, the lock piece 23, and the clip portion 25 are all made of a nonwoven fabric, the wire harness exterior body 20 is one part as a whole, and the exterior body and the clip are separated. There is an advantage that the number of parts can be reduced as compared with. In addition, since it does not take time to assemble the clip on the exterior body, it is possible to reduce the number of work steps.

  FIG. 2 is a detailed cross-sectional view of the clip portion 25 as viewed from the axial direction. The clip portion 25 is a non-woven fabric and is integrally formed with the rectangular plate portion 21. The anchor 25b is connected to the clip post 25a and has a conical shape. The anchor 25b is composed of an outer anchor portion 25b1 and an inner anchor portion 25b2. Since the anchor interior 25b2 has a depressed central portion, the anchor 25b can be easily bent when the anchor 25b is inserted into the attachment hole 31 of the steering hanger beam 30, and therefore the clip portion 25 can be easily inserted into the attachment hole 31. It has become.

  The anchor 25b is shaped such that the outer anchor portion 25b1 is soft and the inner anchor portion 25b2 is hard. Thus, the heating temperature at the time of molding is changed in order to change the hardness of the outer part and the inner part of the anchor 25b. Specifically, by heating the anchor outer portion 25b1 at a lower temperature and heating the anchor inner portion 25b2 at a higher temperature, a configuration is realized in which the outer side is soft and the inner side is hard.

  Since the anchor outer portion 25b1 is easily deformed when the clip portion 25 is inserted into the attachment hole 31 by softening the anchor outer portion 25b1, the clip portion 25 can be easily inserted into the attachment hole 31. Also, by making the anchor interior 25b2 hard, it becomes difficult for the anchor 25b to come out of the mounting hole 31 after insertion, and is firmly fixed to the steering hanger beam 30.

  FIG. 3 shows a state before the wire harness 10 in which the wire group W is wound around the wire harness exterior body 20 is attached to the steering hanger beam 30.

  The wire harness 10 includes a wire group W and a wire harness exterior body 20. In the wire harness 10, the rectangular plate portion 21 is wound around the electric wire group W, and the lock claw 23 b is inserted into the slit 22 and locked in the state. In a state where the wire group W is wound around the wire harness exterior body 20, the lock piece 23 is positioned on the lower surface side of the outer surface of the wire harness exterior body 20 so that the lock piece 23 can be inserted into the mounting hole 31 of the steering hanger beam 30 below. To do.

  The steering hanger beam 30 is mainly used for a dashboard (instrument panel) of a vehicle body, and is composed of a metal columnar pipe for increasing the rigidity of the vehicle body. A plurality of attachment holes 31 for inserting and engaging the clip portion 25 are formed on the outer peripheral surface of the steering hanger beam 30. The steering hanger beam 30 constitutes a vehicle body according to the present invention.

  4A is a cross-sectional view of the wire group W, the wire harness exterior body 20, and the steering hanger beam 30 in FIG. 1 as viewed from the axial direction, and FIG. 4B is a view of the wire group W in FIG. It is sectional drawing which looked at the wire harness exterior body 20 and the steering hanger beam 30 from the axial direction.

  As shown in FIG. 4A, the rectangular plate portion 21 has a length in the short direction, that is, the length in the left-right direction in FIG. 4A, so that both ends overlap the outer peripheral surface of the wire group W. As shown in FIG. 4B, both ends of the rectangular plate portion 21 are overlapped with each other with the rectangular plate portion 21 wound around the electric wire group W. In this state, when the lock claw 23b is inserted into any one of the slits 22 of the rectangular plate portion 21, the rectangular plate portion 21 is locked in the wound state.

  A clip portion 25 is provided integrally with the rectangular plate portion 21 on the outer surface, which is a surface opposite to the surface on which the rectangular plate portion 21 winds the electric wire group W, and is inserted into the mounting hole 31 of the steering hanger beam 30. Thus, the wire harness 10 is attached to the steering hanger beam 30.

  FIG. 5 is a perspective view of a state in which the wire harness 10 is fixed to the steering hanger beam 30 on the vehicle body side, and FIG. 6 is a cross-sectional view of the wire group W viewed from the axial direction in the same state.

  The wire harness 10 is attached to the steering hanger beam 30 by the clip portion 25 being inserted into the attachment hole 31 and fixed to the vehicle body side. The outer diameter of the upper surface of the conical anchor 25 b in the clip portion 25 is larger than the inner diameter of the attachment hole 31, and when the clip portion 25 is inserted into the attachment hole 31, it is inserted by being bent.

  After the anchor 25 b is inserted into the attachment hole 31, the state shown in FIG. 6 is obtained, and the outer diameter of the upper surface is larger than the inner diameter of the attachment hole 31, thereby preventing the clip portion 25 from coming out of the attachment hole 31. .

  As described above, the wire harness exterior body 20 according to the present embodiment is formed in a long rectangular shape, and the length in the short direction is a size that is wound so that both ends overlap the outer peripheral surface of the wire group W, From a rectangular plate portion 21 in which perforated slits 22 extending in the longitudinal direction of the electric wire group W are provided side by side with a required interval in the short direction, and one end portion 21a of the rectangular plate portion 21 in the short direction. A plurality of locking pieces 23 provided integrally extending in the short direction outward direction, having a predetermined interval in the longitudinal direction, and having locking claws 23b inserted into the slits 22 at the tip, and a rectangular plate portion And a plurality of clip portions 25 that are integrally provided on a surface that becomes the outer surface side when wound around the electric wire group W of 21, and that are fixed to an attachment hole 31 provided in the steering hanger beam 30.

  With this configuration, in the wire harness exterior body 20 according to the present embodiment, when the wire group W is wound around the rectangular plate portion 21, the lock piece 23 is locked to the slit of the rectangular plate portion 21, and the clip portion 25 is steered. By being fixed to the hanger beam 30, it is assembled to the vehicle body. Therefore, the number of parts can be reduced and the number of parts can be reduced as compared with the case where the clip is attached to the vehicle body after the exterior material is passed through the wire group W and the clip for fixing the vehicle body is assembled to the exterior material. Can be reduced.

  Moreover, the wire harness 10 according to the present embodiment includes the electric wire group W and the wire harness exterior body 20, the rectangular plate portion 21 is wound around the electric wire group W, and the lock claw 23b is inserted into the slit 22 The clip portion 25 is configured to be inserted into the mounting hole 31 provided in the steering hanger beam 30.

  With this configuration, in the wire harness 10 according to the present embodiment, the rectangular plate portion 21 is wound around the electric wire group W, the lock claw 23 b is locked in the inserted state in the slit 22, and the clip portion 25 is attached to the steering hanger beam 30. It is assembled to the vehicle body by being inserted into the provided mounting hole 31. Therefore, the number of parts can be reduced and the number of parts can be reduced as compared with the case where the clip is attached to the vehicle body after the exterior material is passed through the wire group W and the clip for fixing the vehicle body is assembled to the exterior material. Can be reduced.

  In addition, the technical scope of the wire harness exterior body and the wire harness according to the present invention is not limited to the above-described embodiment, but includes various modifications of each component described in the claims.

  As described above, the wire harness exterior body and the wire harness according to the present invention have the effect that the number of steps for assembling the wire harness with respect to the vehicle body can be reduced, and the number of parts for assembly can be reduced, It is useful for wire harness exterior bodies and wire harnesses in general.

DESCRIPTION OF SYMBOLS 10 Wire harness 20 Wire harness exterior body 21 Rectangular plate part 22 Slit 23 Lock piece 23a Lock pillar 23b Lock claw 25 Clip part 25a Clip pillar 25b Anchor 30 Steering hanger beam 31 Mounting hole W Electric wire group

Claims (2)

A sewing machine that is formed in a long rectangle and has a length in the short direction wound around the wire group so that both ends overlap each other on the outer peripheral surface of the wire group, and extends in the longitudinal direction of the wire group A rectangular plate portion in which eye-shaped slits are provided side by side with a required interval in the short direction;
A plurality of lock pawls that are provided to extend outward in the short-side direction from a plurality of locations that are spaced apart from each other at one end portion in the short-side direction of the rectangular plate portion, and that are inserted into the slit at the tip. A lock piece of
A plurality of clip portions that are integrally provided on a surface on the outer surface side of the rectangular plate portion when the rectangular plate portion is wound around the electric wire group, and are fixed to mounting holes provided in the vehicle body. The wire harness exterior body characterized by the above-mentioned.   An electric wire group and the wire harness exterior body according to claim 1, wherein the rectangular plate portion is wound around the electric wire group, the lock claw is inserted into the slit and locked, and the clip portion is a vehicle body. A wire harness, wherein the wire harness is inserted into a mounting hole provided in the wire.

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