JP2010136593A - Wire arrangement structure of wire harness for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire arrangement structure which corresponds to an over-stroke smoothly and prevents a migratory part of a wire harness from coming loose even though the length of the migratory part of the wire harness suspended between a vehicle body and a slide member is not set longer than usual in consideration time of the over stroke of the slide member. <P>SOLUTION: The wire harness is supported by a supporting member provided at a vehicle body side and by a supporting member provided at a slide member side, a coil spring is mounted to the inner faces of walls on both sides of the supporting member provided at the slide member side, a slider with both sides connected to the coil spring is held movably to both sides, and the wire harness is inserted into the slider and is held. When the slide member further over-strokes from a slide completing position, the slider slides in a direction opposite to the over-stroke direction by an over-stroke quantity of the slide member. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wiring structure for a wire harness for an automobile, and more specifically, the length of a wire harness that is bridged between a vehicle body and a slide member is set to be longer in consideration of an overstroke of the slide member. Even if it does not do, it can respond to an overstroke.

  2. Description of the Related Art Conventionally, a wire harness is bridged between a vehicle body and a slide member in order to constantly supply power to electrical components in a slide member such as an automobile slide door. As this type of wiring structure, for example, as shown in FIG. 8, a wire harness W / H is inserted into a caterpillar-shaped cable guide 2 in which a plurality of link members 1 are connected in a line, and the cable guide 2 Both ends of the vehicle body 3 and the slide door 4 are connected to support members 5 and 6 having a rotation mechanism provided on the vehicle body 3 and the slide door 4 so that the wire harness W / H is supported by the support members 5 and 6. 4 has been proposed (see Japanese Patent Application Laid-Open No. 2006-327328). The caterpillar-shaped cable guide 2 has a function of preventing the interference with peripheral members by controlling the bending of the wire harness W / H and taking a clearance with the vehicle body in addition to the function of protecting the electric wire. .

  In addition, instead of the cable guide 2, a corrugated tube in which annular crests and troughs are alternately provided in the axial direction is used as an exterior material of the wire harness, and both ends thereof are used as support members provided with a rotation mechanism. Sometimes it is supported.

  On the other hand, when the sliding door is opened or closed rapidly, the sliding door may overstroke. The overstroke of the slide member refers to sliding beyond the normal slide amount of the slide member. When the slide member is a slide door, the normal door opening / closing operation is performed by rapidly opening or closing the slide door. It means to slide to a point that passes the door fully open position or door fully closed position. For example, in the case of a passenger car equipped with a slide door, it may overstroke to a point of 20 to 30 mm after passing through the door fully open position or the door fully closed position, which is a slide completion position. The door is returned to the fully closed position.

  In the wiring structure of the wire harness as described above, since the distance from the support member 5 on the vehicle body side to the support member 6 on the slide door side increases when the slide door 4 overstrokes, the space between the vehicle body 3 and the slide door 4 is increased. It is necessary to set the length of the crossover portion of the wire harness W / H to be set longer than the length necessary for the normal opening / closing operation in consideration of the overstroke of the slide door 4. However, with the above configuration, when the sliding door 4 is normally opened and closed, the overstroke length of the wire harness W / H becomes extra, the crossing portion becomes slack, the appearance deteriorates, and passengers get on and off. At this time, the slack crossing portion may be stepped on and the wire harness may be damaged.

JP 2006-327328 A

  The present invention has been made in view of the above problems, and it is not necessary to set the length of the connecting portion of the wire harness spanned between the vehicle body and the slide member longer in consideration of the overstroke of the slide member. It is also an object of the present invention to be able to smoothly cope with the overstroke, and thus to prevent looseness of the crossover of the wire harness.

In order to solve the above problems, the present invention is a wiring structure of a wire harness that is bridged between a vehicle body and a slide member,
The wire harness is supported by a support member provided on the vehicle body side and a support member provided on the slide member side,
Provided on the slide member side is a slider through which the wire harness is inserted and held, and both sides of the slider are connected to coil springs provided on the inner surfaces of both side walls of the support member so as to be movable on both sides.
When the slide member further overstrokes from a predetermined slide completion position, the slider slides in the opposite direction to the overstroke direction by the amount of overstroke of the slide member by expanding and contracting the coil springs on both sides,
After the overstroke, the slide member returns to a predetermined slide completion position, and the slider is also returned to the original position immediately before the overstroke by the elastic force of the expanded and contracted coil spring. The harness wiring structure is provided.

  As described above, inside the support member provided on the slide member side, a slider having both sides connected by a coil spring is held so as to be movable in both the left and right directions, and the wire harness is inserted and supported by the slider. Yes. Therefore, when the slide member overstrokes beyond the slide completion position in the normal slide operation, the slider is pulled by the crossing portion of the inserted wire harness, and the slide member is overloaded while the coil springs on both sides are expanded and contracted. It is possible to slide in the direction opposite to the overstroke direction by the stroke amount. That is, even if the slide member to which the support member is fixed overstrokes, the slider can slide to the opposite side by the amount of overstroke in the support member. It is possible to cope with the overstroke of the slide member while maintaining the length necessary for the normal slide operation without adding the length. Therefore, it is possible to prevent looseness at the crossover of the wire harness.

Further, by inserting the wire harness through the slider movably held by the support member, the wire harness can follow the slide member while appropriately sliding the slider within the support member according to the movement of the slide member. Therefore, the wire harness that is routed can be smoothly deformed while always maintaining an optimal posture.
The coil spring connected to both sides of the slider is not particularly limited as long as it can expand and contract a length corresponding to the overstroke amount of the slide member.

Covering the crossover portion of the wire harness with an exterior material,
The slider supports a rotating member that fits and holds the end portion of the exterior material and inserts the wire harness in a horizontal direction, and the slider has a wire harness drawn from the rotating member. It is preferable to provide a pull-out passage for pulling out the slide toward the slide member.

  As described above, by covering the crossover portion of the wire harness with the exterior material, the wire harness can be securely protected without being exposed. Examples of the exterior material include a caterpillar-shaped cable guide in which a plurality of link members are linearly coupled so as to be rotatable by a predetermined angle, and a corrugated tube.

  In addition, the slider is supported by the slider so as to be rotatable in the horizontal direction, and the end portion of the exterior material is fitted and held in the rotary member so that the wire harness is inserted, whereby the horizontal direction of the slide member is obtained. While rotating the rotating member in accordance with the movement of the wire harness, the wire harness that is routed can be smoothly followed by the slide member.

As the structure of the rotating member, for example, a fitting portion that fits with an end portion of the exterior member is provided on one end side of the rotating member, and a wire harness is drawn on the upper surface of the other end side of the rotating member. The cylindrical portion protrudes upward, and the cylindrical portion protrudes downward at a position corresponding to the cylindrical portion on the upper surface side on the lower surface on the other end side, and the cylindrical portion protruded up and down functions as a rotation shaft. Can be made. That is, the slider can rotate the rotating member in the horizontal direction by vertically supporting the cylindrical portion through the upper and lower through holes provided on the upper and lower surfaces of the slider. Can be supported.
In addition, the wire harness pulled out from the rotating member can be pulled out to the slide member side through the pulling passage by continuing the cylindrical portion of the rotating member protruding upward from the pulling passage provided in the slider.

  It is preferable that the slide member is a slide door, and an overstroke amount of the slide door is 20 to 30 mm.

  In the case of a passenger car equipped with a slide door, when the slide door is opened or closed rapidly, the slide door is fully opened, and the stroke is further overstroked by about 20 mm to 30 mm from the fully closed position. The fully opened position and the fully closed position are returned. However, according to the configuration of the present invention, the length of the wire harness spanned between the vehicle body side and the sliding door side remains the same as that required for normal door opening / closing operation, and can also handle the sliding door overstroke. Therefore, it is possible to effectively prevent looseness of the crossover portion of the wire harness and improve the appearance, and also, since the occupant does not step on the slackening crossover portion, damage to the wire harness can be prevented.

  The case where the support member provided with the slider is provided on a slide member such as a slide door has been described above, but the same effect can be obtained even if the support member having the above configuration is provided on the vehicle body side. That is, at the time of the overstroke of the slide member, the slider in the vehicle body side support member is pulled by the crossing portion of the wire harness, and in this case, it is possible to slide by the overstroke amount in the same direction as the overstroke direction. Therefore, the connecting portion of the wire harness can correspond to the overstroke of the slide member while maintaining the length necessary for the normal slide operation without adding an extra length for the overstroke.

  As described above, according to the present invention, inside the support member provided on the slide member side, the slider having both sides connected by the coil spring is held so as to be movable in the left-right direction, and the wire harness is inserted into the slider. When the slide member overstrokes beyond the slide completion position in normal sliding operation, the slider is opposite to the overstroke direction by the amount of overstroke of the slide member while expanding and contracting the coil springs on both sides. It becomes possible to slide in the direction. That is, even if the slide member to which the support member is fixed has an overstroke, the slider can slide to the opposite side within the support member by the overstroke, so the connecting portion of the wire harness has an extra length for the overstroke. It is possible to cope with the overstroke of the slide member while maintaining the length necessary for the normal slide operation without adding a slack, and to prevent the crossover of the wire harness from loosening.

  In particular, in the wiring structure of the wire harness that is bridged between the vehicle body and the slide door, the support member provided on the slide door side is configured as described above, so that it is bridged between the vehicle body side and the slide door side. The looseness of the wire harness can be effectively prevented and improved in appearance, and the occupant does not step on the loosened transition portion, so that the damage of the wire harness can also be prevented.

Embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a first embodiment of the present invention. As shown in FIG. 1, a wire harness W / H is bridged between a vehicle body 10 and a slide door 11, and a wire harness is connected to a support member 12 provided on the vehicle body 10 side and a support member 13 provided on the slide door 11 side. W / H is supported. The support member 13 on the slide door 11 side is fixed to the slide door 11 side by fastening a bolt (not shown) through the bolt through hole 13a, and the support member 12 on the vehicle body 10 side is similarly fastened by bolt fastening. It is fixed to. In addition, an exterior material 14 made of a corrugated tube is exteriorized at a transition portion of the wire harness W / H that is spanned between the vehicle body 10 and the slide door 11.

  As shown in FIG. 2, a coil spring 15 is attached to the inner surface of both side walls 13 b of the support member 13 provided on the slide door 11 side, and a slider 16 having both side portions 16 a connected to the coil spring 15 is attached to the support member 13. Provided. That is, the support member 13 on the slide door 11 side holds the slider 16 so as to be movable in both the left and right directions. The left and right coil springs 15 are the same coil springs that can expand and contract a length corresponding to the overstroke amount (in the present embodiment, about 20 to 30 mm) when the slide door 11 overstrokes.

  In addition, the slider 16 supports a rotating member 17 that fits and holds the end portion of the exterior material 14 and allows the wire harness W / H to pass therethrough so as to be rotatable in the horizontal direction. In the present embodiment, an annular unevenness (not shown) that fits with the unevenness at the end of the corrugated tube that is the exterior member 14 is provided on the inner peripheral surface of the one end side 17a of the rotating member 17, and the rotating member A cylindrical portion 17c for pulling out the wire harness W / H protrudes upward on the upper surface of the other end side 17b of FIG. 17, and a cylindrical portion (not shown) is provided on the lower surface at a position corresponding to the cylindrical portion on the upper surface side. The cylindrical portion 17c that protrudes downward and protrudes upward and downward functions as a rotating shaft. That is, the upper and lower through-holes 16b provided on the upper and lower surfaces of the slider 16 are respectively penetrated by the cylindrical portions 17c projecting upward and downward to pivotally support the cylindrical portion 17c, whereby the slider 16 causes the rotating member 17 to move in the horizontal direction. It is supported so that it can rotate.

  Further, the slider 16 is provided with a pull-out passage 16c for pulling out the wire harness W / H pulled out from the rotating member 17 to the slide door 11 side, and the cylindrical portion 17c of the rotating member 17 protruding upward is provided. The wire harness W / H pulled out from the rotating member 17 can be pulled out to the slide door 11 side through the pull-out path 16c by being continued to the pull-out path 16c provided in the slider 16.

  On the other hand, the support member 12 provided on the vehicle body 10 side is not provided with the slider as described above, and the support member 12 directly supports the rotating member 17.

  FIG. 1 shows a wiring structure of a wire harness W / H that is bridged between a vehicle body 10 and a slide door 11 in this embodiment. P1 in FIG. 1 is a slide door fully closed position, and P3 is a slide door. The fully open position, P2, indicates the routing state at the intermediate position. In the normal opening / closing operation of the sliding door, the sliding door 11 draws an operation trajectory T from the sliding door fully closed position P1 through the intermediate position P2 to the sliding door fully open position P3.

  On the other hand, when the slide door 11 is suddenly opened from the slide door fully closed position P1, the slide door 11 overstrokes to a position P4 that has passed the fully open position P3 by about 20 to 30 mm, and then returns to the fully open position P3. 3A shows the state of the sliding door side support member 13 at the fully open position P3, and FIG. 3B shows the state of the sliding door side support member 13 at the overstroke position P4. When the slide door 11 is overstroked from the fully open position P3 to P4, the slider 16 in the support member 13 is pulled by the connecting portion of the wire harness W / H, and the coil springs 15 on both sides are expanded and contracted. It slides in the overstroke direction [leftward direction (rear direction of vehicle) in FIG. 1] [rightward direction (rear direction of vehicle) in FIG. 1] [FIG. 3 (B)]. That is, as shown in FIG. 1, even if the support member 13 comes to the position P4 where the support member 13 is overstroked by a predetermined amount and is shaded, the slider 16 can slide to the opposite side by the amount of the overstroke in the support member 13, When viewed from the vehicle body 10 side, the position of the slider 16 at the overstroke position P4 is the same position as the position of the slider 16 at the fully open position P3.

  When the slide door 11 is suddenly closed from the fully open position P3 of the slide door, the slide door 11 overstrokes to a position P0 that passes the fully closed position P1 by about 20 to 30 mm, and then returns to the fully closed position P1. 4A shows the state of the sliding door side support member 13 at the fully closed position P1, and FIG. 4B shows the state of the sliding door side support member 13 at the overstroke position P0. When the sliding door 11 is overstroked from the fully closed position P1 to P0, the slider 16 in the support member 13 is pulled by the connecting portion of the wire harness W / H and slides while expanding and contracting the coil springs 15 on both sides. The door 11 slides in the overstroke direction [rightward direction (front direction of vehicle) in FIG. 1] [leftward direction (rear direction of vehicle) in FIG. 1] [FIG. 4B]. That is, as shown in FIG. 1, even if the support member 13 reaches a position P0 that is overstroked by a predetermined amount and is shaded, the slider 16 can slide to the opposite side within the support member 13 by the overstroke. When viewed from the vehicle body 10 side, the position of the slider 16 at the overstroke position P0 is the same position as the position of the slider 16 at the fully closed position P1.

  Therefore, the connecting portion of the wire harness W / H can be used for the overstroke of the slide door 11 while maintaining the length necessary for the normal opening / closing operation of the slide door 11 without adding an extra length for the overstroke. Therefore, it is possible to prevent looseness of the crossing portion of the wire harness W / H and improve the appearance. Moreover, since a passenger | crew does not step on the loose crossing part, damage to wire harness W / H can also be prevented.

  After the overstroke, the slide door 11 returns to the fully open position P3 and the fully closed position P1, and the slider 16 is also shown in FIG. 3A and FIG. Return to position.

  5 to 7 show a second embodiment. In 2nd Embodiment, as shown in FIG. 5, the caterpillar-shaped cable guide which connected the link member 21 so that predetermined angle rotation was possible was used as the exterior material 20 of the wire harness W / H wired over. Other than the above, the second embodiment is the same as the first embodiment. 6 shows a link member 21 constituting the cable guide 20, and FIG. 7 shows a state in which the link member 21 is connected. As shown in FIG. 6B, the link member 21 constituting the cable guide 20 has a cylindrical shape with a rectangular cross section, and the wire harness W / H is inserted through the hollow portion. A pair of upper and lower convex portions 22 functioning as a rotation shaft is provided on one end side of the link member 21, and a pair of upper and lower receiving holes that pivotally support the convex portion 22 of the mating link member 21 to be connected to the other end side. 23 is provided. In addition, a pair of upper and lower contact portions 24 are provided on one end side of the link member 21, and the other end side is in contact with the contact portion 24 of the counterpart link member 21 to be connected. A pair of upper and lower contacted portions 25 that regulate the rotation angle are projected.

  Also in the second embodiment, as in the first embodiment, the connecting portion of the wire harness W / H has a length necessary for the normal opening / closing operation of the sliding door 11 without adding an extra length for the overstroke. Since it can respond also to the overstroke of the slide door 11, the looseness of the transition part of the wire harness W / H can be prevented. Further, since the length of the cable guide 20 that is externally mounted on the wire harness W / H can be suppressed to a necessary minimum, an increase in weight and cost are also suppressed.

It is a figure which shows the wiring structure of the wire harness in 1st Embodiment of this invention. It is a schematic perspective view which shows the supporting member by the side of a slide door. (A) shows the state of the slide door side support member at the fully open position P3, and (B) is a schematic perspective view showing the state of the slide door side support member at the overstroke position P4. (A) shows the state of the slide door side support member at the fully closed position P1, and (B) is a schematic perspective view showing the state of the slide door side support member at the overstroke position P0. It is a figure which shows the wiring structure (sliding door full open state) of the wire harness in 2nd Embodiment of this invention. The link member which comprises the cable guide used by 2nd Embodiment is shown, (A) is a side view of a link member, (B) is a front view of a link member, (C) is A- of (A) and (B). It is A sectional drawing. It is sectional drawing which shows the state which connected the link member. It is a figure which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Car body 11 Sliding door 12 Car body side supporting member 13 Sliding door side supporting member 13a Bolt through-hole 13b Both-side wall 14, 20 Exterior material 15 Coil spring 16 Slider 16a Both-sides 16b Through-hole 16c Pull-out passage 17 Rotating member 17a One end 17b Other end Side 17c Tube part

Claims (3)

A wiring harness wiring structure spanned between the vehicle body and the slide member,
The wire harness is supported by a support member provided on the vehicle body side and a support member provided on the slide member side,
Provided on the slide member side is a slider through which the wire harness is inserted and held, and both sides of the slider are connected to coil springs provided on the inner surfaces of both side walls of the support member so as to be movable on both sides.
When the slide member further overstrokes from a predetermined slide completion position, the slider slides in the opposite direction to the overstroke direction by the amount of overstroke of the slide member by expanding and contracting the coil springs on both sides,
After the overstroke, the slide member returns to a predetermined slide completion position, and the slider is also returned to the original position immediately before the overstroke by the elastic force of the expanded and contracted coil spring. Harness wiring structure. Covering the crossover portion of the wire harness with an exterior material,
The slider supports a rotating member that fits and holds the end portion of the exterior material and inserts the wire harness so as to be rotatable in the horizontal direction, and the slider has a wire harness drawn from the rotating member. The wiring structure of the wire harness according to claim 1, wherein a pull-out passage for pulling out the wire toward the slide member side is provided.   The wiring structure of the wire harness according to claim 1, wherein the slide member is a slide door, and an overstroke amount of the slide door is 20 to 30 mm.

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