JP2018191479A - Wire harness for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an excess length, for an operation, of a wire harness to be securely positioned in a direction in which the excess length does not interfere with a peripheral material.SOLUTION: In a wire harness for a vehicle, an apparatus is connected to a leading end of a wire harness laid along a panel and the apparatus is attached to the panel. An excess length of the wire harness is provided between the position of the leading end connected to the apparatus and the position where the leading end of a clamp is fixed to the panel. The clamp whose leading end is fixed in position is provided with a belt-like, flat regulating plate whose rear end is fixed together with the wire harness. The regulating plate has rigidity in order to be bent from an original shape and elasticity in order to be deformed into a straight shape. The excess length is stretched by elastically deforming the regulating plate together with the wire harness from the clamp fixed position into the straight shape. The excess length is bent in the bending direction of the regulating plate when returning to the bent original shape from the straight shape.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a vehicular wire harness, and in particular, prevents a work surplus length provided in a wire harness routed in a vehicle from interfering with an outer member after work.

  The vehicle wire harness is connected to a device installed in the vehicle, and an extra work length is required when the device is attached to the vehicle body. For example, when attaching a device such as a lamp unit to a fixing panel such as a vehicle body panel, an instrument panel, an audio panel, an air conditioning control panel, etc., first, as shown in FIGS. The terminal 101 of the wire harness 100 routed to the panel 20 is connected to the device 110 by extending the wire harness 100, and then the device 110 is bolted to the mounting portion 22 of the panel 20 as shown in FIG. It is fixed using fasteners such as. A work surplus length portion 100x is provided in the wire harness 100 for the connector connection work and the device panel fixing work, and the work surplus length portion is extended to perform the connector connection and the device panel fixing work.

  While the panel is fixed, the work surplus length portion 100x of the wire harness 100 is shrunk from the extended state to the bent state, but the bent portion 100y tends to interfere with the peripheral members. Thus, if the work surplus part of the wire harness interferes with the peripheral member, an abnormal noise is generated when the vehicle travels, and the electric wire of the wire harness may bite into the peripheral member, which may cause a short circuit or a wire cut.

  In order to solve the above-mentioned problem, Japanese Patent Application Laid-Open No. 2010-130760 (Patent Document 1) has conventionally provided a wire harness wiring structure having an extra length portion connected to the slide sheet shown in FIG. In the wiring structure of the wire harness, the flexible bending restricting member 200 bent in a U shape is fitted along the entire length of the extra length portion 100x of the wire harness by the corrugated tube 180, and the bending restricting member 200 is bent. Elastic claws 211 protrude from both side width edges at intervals from the substrate 210 in the length direction, and the elastic claws 211 hold the corrugated tube 180 of the extra length. In addition, a rotary connecting member 230 that penetrates the surplus length portion is assembled to one end of the substrate 210 in the length direction, and a structural member connecting portion 230a is projected from the rotary connecting member 230 and attached to the structural member. The rotation connecting member 230 is attached to the vehicle body, and the deflection regulating member 200 connected to the rotation connecting member 230 is positioned and held at one end in the length direction of the extra length portion. The bending restricting member 200 forcibly curves the extra length of the wire harness into a U shape to prevent the extra length from interfering with the peripheral members.

JP 2010-130760 A

  In Patent Document 1, a long bending restricting member 200 that extends along the entire length of the extra length portion of the wire harness is required, and the rotation connecting member 230 having a vehicle body fixing portion for positioning and holding the bending restricting member 200 is provided. This is connected to the front end of the substrate of the deflection regulating member, so that the surplus length absorbing device is increased in size, and the rotation coupling member 230 of the deflection regulating member 200 having a complicated shape is required, resulting in high costs. In addition, the deflection regulating member 200 and the rotary connecting member 230 are dedicated members designed to correspond to the use locations, and there is a problem that the versatility is inferior.

  The present invention has been made in view of the above problems, and it is an object of the present invention to absorb the work surplus portion of the wire harness so as not to interfere with the peripheral members easily and inexpensively without increasing the size.

In order to solve the above problems, the present invention is a vehicle wire harness in which a device is connected to the tip of a wire harness routed along a panel, and the device is attached to the panel,
A surplus length portion of the wire harness is provided between a front end position connected to the device and a front end fixing position of the clamp to the panel, and a rear end side is fixed to the clamp at the front end fixing position together with the wire harness. A flat regulation plate is provided, and the regulation plate has rigidity that allows the original shape to be bent and elasticity that can be transformed into a linear posture,
The restriction plate is elastically deformed from the clamp fixing position to the linear posture together with the wire harness to extend the extra length portion, while the extra length portion is bent in the bending direction of the regulation plate when the original shape is returned from the linear posture to the bending posture. The wire harness for vehicles which is supposed to be bent is provided.

The clamp for fixing the wire harness and the regulation plate at the position of fixing the tip to the panel is obtained by winding the wire harness and the regulation plate with a band-type clamp or an adhesive tape that wraps and fastens the wire harness and the regulation plate with a band. It is a tape winding clamp that adheres,
It is preferable that the restriction plate is fixed to the wire group of the wire harness with an adhesive tape.
The restriction plate along the wire harness's wire group may be either the inner position or the outer peripheral position surrounded by the wire, and it is fixed by wrapping adhesive tape so that the wire group is forced to follow the posture of the restriction plate. It is preferable to do.

The regulation plate is formed by coating a steel plate with an insulating resin or a resin plate if it has rigidity and elasticity. The regulation plate has a length of 10 to 15 cm, a width of 1 to 5 cm, and a thickness of about 1 to 3 mm. Thus, the original shape is preferably an L-shaped bending posture. However, the size and the bent shape are determined according to the location to be used.
The restriction plate is bent in advance to the required angle, and the original shape is set to the bending posture, and an operator or the like can be pulled and extended from the bending posture to the linear posture, but when released, the original shape returns to the bending posture. It is. Therefore, it is preferable to use the metal plate of a steel plate as a base material.
The bending direction and the bending angle of the bending posture of the regulating plate are set to a direction and an angle at which the extra length for working the wire harness does not interfere with the peripheral member. Fix one side of the shape with a clamp, and project the other side downward, upward, rightward, or leftward in the required direction so that the wire harness can be bent in the bending direction of the restriction plate so that it does not interfere with surrounding materials I am doing so.

  As described above, in the present invention, the restriction plate used for contracting the extra length portion of the wire harness is simply a simple belt-like flat plate bent into an L shape, and the straight portion on one side of the restriction plate. Is fixed to the panel together with the wire harness, and is locked to the panel by the clamp, so that one side of the regulating plate can be easily fixed to the panel, and the bent portion on the other side to bend and return to the original shape is free. Therefore, it can be elastically deformed from the bending posture to the linear posture together with the surplus length part of the wire harness, and the surplus length part can be easily extended. The original state can be restored in a direction that does not interfere with the.

The wire group of the wire harness is sheathed through a tube made of a resin tube or a corrugated tube, or wrapped with an adhesive tape, and only the wire group protrudes from the tip of the exterior material made of these tube or adhesive tape, Each electric wire of the electric wire group is connected to the device, and the extra length portion for work having a length of 100 to 50 cm is provided between the position fixed by the clamp and the device.
When the restriction plate is disposed along the rear side of the extra length portion, the wire group of the wire harness extends from the front end of the restriction plate to the device connection end, and the restriction plate returns to the original shape to be bent. The front side that is detached from the plate is pulled toward the bent rear side, and is bent and contracted in a direction that does not interfere with the surrounding material.

  As described above, a restriction plate bent in a simple L-shape is arranged along the wire harness having the extra length for working according to the present invention, and the wire harness is guided and restricted in the bending direction of the restriction plate. doing. One side of the restricting plate can be fixed to the wire harness using a panel fixing clamp, and the other side of the L-shaped restricting plate is elastic to a straight posture in order to extend the extra length from the original bending posture. It can be deformed, and after the work is completed, the operator can release the hand from the straight posture to the original bending posture, and the extra length can be shrunk to prevent interference with surrounding members. it can.

The state before connecting a device to a wire harness of a 1st embodiment of the present invention is shown, (A) is a front view and (B) is a top view. The control board used by 1st Embodiment is shown, (A) is a front view, (B) is a partially expanded sectional view, (C) is a top view before a bending process, (D) is a front view of (C), (E) is the schematic which shows the deformation | transformation of a bending attitude | position and a linear attitude | position. It is a top view of the wire harness before attaching a control board. The wire harness which attached the control board is shown, (A) is a front view, (B) is the BB sectional drawing of (A). (A) is sectional drawing of a clamp, (B) is drawing which shows the state which has fixed the wire harness and the control board with the clamp. The state which connected the apparatus to the wire harness by the connector by making a control board into linear form is shown, (A) is a front view, (B) is a top view. It is a front view which shows the state which contracted the wire harness and fitted the apparatus to the attachment recessed part of the panel. It is the schematic which shows 2nd Embodiment. (A) (B) (C) is drawing which shows a prior art example. It is drawing which shows another prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 7 show an embodiment of the present invention.
The wire harness 1 of the embodiment is a wire harness routed in the same place as the wire harness of FIG. 9 of the conventional example. That is, a connector 4 connected to the front ends of a plurality of electric wires 2 of the wire harness 1 is connected to a device 3 comprising a front lamp unit, and the device 3 is a vehicle body panel 20 (hereinafter abbreviated as a panel 20 hereinafter) on the front side of an automobile. ) To the mounting recess 22 provided at the front end. The wire harness 1 is provided with a working extra length portion 1x at the front portion connected to the device 3.

  The wire harness 1 is attached to the panel 20 using the clamp 9 at intervals in the length direction along the wiring path, and is attached to the wire harness 1 at the front end fixing position P1 close to the attachment recess 22 to which the device 3 is attached. A band-type clamp 10 is attached. The band 11 of the clamp 10 at the front end fixing position P1 is wound around the rear end side of the restriction plate 5 together with the electric wire 2 of the wire harness 1, and the wire harness 1 and the restriction plate 5 are fixed to the panel 20 with one clamp 10. It is said.

  The regulation plate 5 shown in FIG. 2 has rigidity and elasticity composed of a strip-shaped flat plate, and in this embodiment, the surface of the steel plate is provided with an insulating resin coating layer, having a length of 10 to 15 cm, a width of 1 to 5 cm, The thickness is in the range of 1 to 3 mm. As shown in FIGS. 2C and 2D, the rectangular straight original plate 5-M is bent into an L-shaped bending posture. More specifically, the coating layer 5t is provided in a state in which the steel plate 5k is bent, the straight portion 5a is formed in an L shape that is continuous with the bent portion 5b via the bending fulcrum 5c, and the original shape is in a bending posture. As shown in FIG. 2 (E), the restriction plate 5 can be elastically deformed linearly when the worker holds and pulls it, and returns to its original L-shaped bending posture when the worker releases the hand.

  As shown in FIG. 3, the plurality of electric wires 2 constituting the wire harness 1 are wound and protected by wrapping an exterior material made of an adhesive tape 7, and work having a length of 100 to 50 cm on the front end side connected to the device 3 An extra length portion 1x is provided. In the extra length portion 1x, the adhesive tape 7 of the outer packaging material is not wound, and the plurality of electric wires 2 are easily bent and connected to the connector 4 at the tip. In addition, when there are few electric wires, you may bind an excess length part by tape winding.

  4A and 4B, the front end 5f of the restriction plate 5 is positioned at the front end of the winding portion of the adhesive tape 7, and the wire harness is formed in an L shape along the L shape of the restriction plate 5. The wire harness 1 that is bent and wrapped around the regulation plate 5 and the adhesive tape 7 with the adhesive tape 17 for connecting the regulation plate is wound and fixed.

As a result, the straight portion 5a on one side of the restricting plate 5 is positioned in a linear direction continuous with the wiring harness wiring direction, and the bent portion 5b on the other side bent 90 degrees is positioned in the downward D direction. The extra length 1x of the wire harness 1 connected by the plate 5 is guided in the downward direction.
In the present embodiment, with the device 3 fitted in the mounting recess 22, the bracket 3 a that protrudes upward from the device 3 and the bolt 8 that passes through the bolt hole of the bracket 3 a and is inserted into the screw hole of the panel 20 are positioned. Therefore, in order to guide the electric wire 2 downward so that these peripheral members and the electric wire 2 do not interfere with each other, the bent portion 5b of the regulating plate 5 is positioned in the downward direction.
That is, when the peripheral member to be prevented from contacting is on the lower side, the bent portion 5b faces upward, when it is on the left side, the bent portion 5b faces right, and when it is on the right side, the bent portion 5b faces left. The bending direction of the extra length portion 1x of the wire harness 1 is set.

  The band-type clamp 10 that fixes the straight portion 5a of the regulating plate 5 and the wire harness 1 is a general-purpose product. That is, the clamp 10 projects a band 11 for winding the linear portion 5a of the regulating plate 5 and the wire harness 1 from one end of the band fastening box 12, passes through the through hole 12a provided in the box 12, and passes through the through hole 12a. The locking claw 12b projecting toward the band 11 is locked in a saw-toothed locking groove provided on the band 11, and the regulation plate 5 and the wire harness 1 are fixed together. In addition, a blade-like locking portion 13 protruding from the outer surface of the box 12 is inserted and locked into the mounting hole of the panel 20 so that the wire harness 1 and the regulating plate 5 can be fixed to the panel 20 at the same time. The locking portion 13 has a shaft portion 13a protruding from the outer surface of the box 12, a pair of blade portions 13b projecting from the tip of the shaft portion 13a, and a locking step portion 13c is provided at the tip of the blade portion 13b. A dish portion 13d is protruded from the base of the shaft portion 13a so as to face the locking step portion 13c. The blade portion 13b is inserted into the mounting hole of the panel 20, the locking step portion 13c is locked to the periphery of the mounting hole, and the plate portion 13d is pressed against the surface of the panel 20.

A method for assembling the wire harness 1 and a method for attaching the device to the panel will be described.
A plurality of electric wires 2 of the wire harness 1 are wrapped with an adhesive tape 7 of an outer packaging material to protect the electric wires 2 in a concentrated manner, and extra length portions 1x are protruded apart from the front end of the outer packaging material. The front end of the regulating plate 5 is positioned at the front end of the wound portion of the adhesive tape 7, the wire harness 1 is bent along the regulating plate 5, and the adhesive tape 17 is wound. In this state, the electric wire 2 that is not converged from the bent front end 5f of the regulating plate 5 is bent downward D and extends.
The band 11 of the clamp 10 is wound around and fastened to the straight portion 5a of the restriction plate 5 and the wire harness 1. In addition, other clamps for locking the panel are also attached to the wire harness at a predetermined interval in the length direction.

  As shown in FIG. 1, the wire harness 1 in which the restriction plate 5 and the clamp 10 are assembled as described above is routed along the predetermined wiring line on the panel 20 in the automobile assembly line, and is fixed with the clamp. Go. During the fixing work by this clamp, the wire harness 1 and the straight portion 5a of the regulating plate 5 are fixed to the panel 20 by the clamp 10 at the front end fixing position P1. As shown by the solid line in FIG. 1A, since the bent portion 5b of the regulating plate 5 is downward, the extra length portion 1x of the wire harness extending from the front end of the bent portion 5b extends downward. .

  The front lamp unit device 3 is connected to the connector 4 connected to the front end of the wire harness 1 fixed using the other clamp 9 while being fixed to the front end fixing position P1 of the panel 20 with the clamp 10. At that time, as shown by the one-dot chain line in FIG. 1 (A), the operator holds the bent portion 5b and bends it upward to extend the regulating plate 5 facing downward from the straight portion 5a. In this state, as shown in FIGS. 6A and 6B, the surplus length portion 1x extending from the front end of the regulating plate 5 extends linearly, and the connector 4 is connected to the device 3 at the front position of the panel 20 having a work space. Connect the connector.

  Next, as shown in FIG. 7, the device 3 is fitted into the mounting recess 22 of the panel 20. At this time, it is necessary to shrink the surplus length portion 1x of the wire harness 1, and when the worker releases the hand from the restriction plate 5, the bent portion 5b of the restriction plate 5 returns to the original bent posture. As a result, the surplus length portion 1x extending from the front end of the bent portion 5b is bent downward, and when the device 3 is fitted into the mounting recess 22, the downward surplus length portion 1x is bent upward and bent downward into a U shape. Shrinks in the length direction in the stagnation state.

  Since the bracket 3a protrudes in the upper part in a state in which the device 3 is fitted in the mounting recess 22, the bracket 3a is fixed using the bolt 8 without interfering with the lower excess length portion 1x. The extra length portion 1x contracted and held downward during the bolt fixing operation does not interfere and does not contact the fixed bolt 8.

As described above, the contracted position of the extra length portion 1x of the wire harness 1 can be returned to the original bending state by simply releasing the restriction plate 5 from the extended position, and can be positioned at the intended predetermined position. Interference with the material can be prevented.
In particular, the restricting plate 5 has a simple shape in which a rectangular belt-like flat plate is simply bent into an L-shaped bending posture. The restricting plate 5 is fixed to the wire harness 1 with a clamp 10, and the wire harness 1 is fixed with the clamp 10. Since the restricting plate 5 is fixed to the panel 20 at the same time, the connecting operation of the restricting plate 5 and the wire harness and the panel fixing operation are very simple.

  In the above-described embodiment, the bent portion 5b of the restriction plate 5 is directed downward. However, depending on the position where the interfering peripheral material exists, the bending direction of the bent portion 5b of the restriction plate 5 is directed upward, rightward, or leftward to the wire harness. The shrinkage direction of the extra length portion of the attachment and wire harness can be set to the upper position, the right position, and the left position, and interference with surrounding materials can be prevented. In particular, by adjusting the bending angle of the bent portion 5b of the regulating plate, it is possible to reliably prevent interference with the peripheral material.

  Instead of wrapping and protecting the adhesive tape as the exterior material around the wire harness, the corrugated tube or the resin tube may be used as the exterior material, and the wire harness may be passed through these tubes.

FIG. 8 shows a second embodiment.
In the second embodiment, the resin tube 30 is used as an exterior material for focusing and protecting the wires of the wire harness, the wires 2 of the wire harness 1 are inserted, and the restriction plate 5 is inserted from the front end opening 30a of the resin tube 30. The adhesive tape 27 is wound around and secured to the front end of the regulating plate 5 and the front end of the resin tube 30. The regulation plate 5 is molded from a resin having rigidity and elasticity. Since the restriction plate 5 is bent in an L shape, the front portion of the resin tube 30 and the electric wire 2 passing therethrough are also bent. An operator can hold the front end portion of the resin tube 30 through which the regulating plate 5 is passed and can deform it into a linear shape, and when it is released, it can be returned to its original L-shaped bending posture.

The substrate of the tape-winding type clamp 33 is wound around the resin tube 30 with the adhesive tape 34 and fixed at a place where the linear portion 5a of the regulating plate 5 is located inside. The wire harness 1 and the straight portion 5a of the regulating plate 5 can be fixed to the panel 20 at the same time by inserting and locking the blade-like locking portion 35 protruding from the substrate of the clamp 33 into the mounting hole of the panel.
Since other configurations and operations are the same as those of the first embodiment, description thereof is omitted.

  The present invention is not limited to the wire harness connected to the front lamp unit, and can be suitably used for a wire harness that requires an extra work length.

DESCRIPTION OF SYMBOLS 1 Wire harness 1x Extra length part 2 Electric wire 3 Equipment 3a Bracket 4 Connector 5 Restriction board 5a Straight line part 5b Bending part 5f Front end 7, 17, 27 Adhesive tape 9 Clamp 10 Band type clamp 11 Band 13 Locking part 20 Panel 22 Attachment Recess 30 Resin tube 33 Tape-clamp clamp

Claims (3)

A device is connected to the tip of a wire harness routed along the panel, and the device is a vehicle wiring harness attached to the panel,
A surplus length portion of the wire harness is provided between a front end position connected to the device and a front end fixing position of the clamp to the panel, and a rear end side is fixed to the clamp at the front end fixing position together with the wire harness. A flat regulation plate is provided, and the regulation plate has rigidity that allows the original shape to be bent and elasticity that can be transformed into a linear posture,
The restriction plate is elastically deformed from the clamp fixing position to the linear posture together with the wire harness to extend the extra length portion, while the extra length portion is bent in the bending direction of the regulation plate when the original shape is returned from the linear posture to the bending posture. Wire harness for a vehicle that is to be bent.   The clamp that fixes the wire harness and the restriction plate at a position where the tip is fixed to the panel is a band-type clamp that wraps the wire harness and the restriction plate with a band and fastens the wire harness and the restriction plate with an adhesive tape. The vehicle wire harness according to claim 1, wherein the restriction plate is fixed to an electric wire group of the wire harness with an adhesive tape.   The regulation plate is formed by coating a steel plate with an insulating resin or a resin plate if it has rigidity and elasticity. The regulation plate has a length of 10 to 15 cm, a width of 1 to 5 cm, and a thickness of about 1 to 3 mm. The vehicle wire harness according to claim 1, wherein the original shape is an L-shaped bending posture.

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