JP2008168726A - Wire harness supporting device for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire harness supporting device for an automobile capable of allowing a wire harness to smoothly follow the motion of a slide member by supporting the wire harness arranged between a vehicle body and the slide member by a small structure. <P>SOLUTION: The wire harness supporting device has a fixing member and a supporting cylinder for a bent guide. The fixing member has a fan-shaped through hole for passing through a wire harness. A circular arc-shaped swollen first opening of the through hole is located on the stretching wire side of the wire harness. A circular arc-shaped guide part is provided on upper and lower inner surfaces of the through hole along the first opening. The supporting cylinder for the bent guide is slidably and rotatably fitted to the arc-shaped guide part. A terminal of an exterior material of the wire harness is internally fitted and locked to the supporting cylinder for the bent guide, a wire group of the wire harness is drawn out of the supporting cylinder for the bent guide and passed through into the through hole, and further passed through into the vehicle body and/or the slide member from a contracted second opening on the other end side of the through hole. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a support device for an automobile wire harness, and is particularly suitable for a support device that smoothly bends a wire harness routed between a vehicle body and a slide member.

Conventionally, a wire harness has been routed between the vehicle body and the slide member in order to constantly supply power to electrical components mounted on the slide member such as a slide door and a slide seat. In order to prevent damage, the exterior is covered with a flexible exterior material such as a corrugated tube, and both ends thereof are supported by support members provided on the vehicle body side and the slide member side, respectively.
Further, the wire harness routed between the vehicle body and the slide member needs to perform a bending operation following the movement of the slide member such as an opening / closing operation of the slide door. In particular, the portion supported by the support member is a portion where a large bending force acts as a fulcrum of bending and damage is likely to occur. A structure that can be bent smoothly is required.

  As a support structure for such a wire harness, for example, as shown in FIG. 6, a spherical rotating member 1a for holding a wire harness W / H covered with a corrugated tube 2 and a rotating member 1a are freely rotatable. A support device (harness fixing tool) 1 having a case 1b having an arcuate accommodation space held in the housing is proposed, and the wire harness W / H is rotatably held in the circumferential direction of the harness by the rotating member 1a. At the same time, it is said that it can be flexibly supported also in the vertical and horizontal directions (see Japanese Patent Application Laid-Open No. 2004-282879).

However, in the support device 1, as shown in FIG. 6 (B), the wire group of the portion (bending portion) that is inserted into the rotating member 1 a and serves as a bending fulcrum is protected by the corrugated tube 2. Therefore, the rotating member 1a has to be enlarged by the outer diameter of the corrugated tube 2 to be inserted, and thus the size of the entire support device 1 is also increased.
On the other hand, in recent years, in order to widen the interior space of automobiles, demands such as lowering the floor surface and reducing the thickness of doors have increased, and accordingly, the power feeding mechanism including the support device is also compact. It is required to have a structure and use of exterior materials such as corrugated tubes in the minimum section between the vehicle body and the sliding door. Therefore, the support device 1 has a problem that it cannot meet such a demand for downsizing.

JP 2004-282879 A

  The present invention has been made in view of the above problems, and can support a wire harness routed between a vehicle body and a slide member with a compact structure, and can be smoothly performed without disconnecting the wire harness. It is an object of the present invention to provide a support device for an automobile wire harness that can be bent smoothly to follow the movement of a slide member.

In order to solve the above problems, the present invention is a support device for an automotive wire harness that is routed between a vehicle body and a slide member,
A fixing member fixed to the slide member or / and the vehicle body;
A support tube for a bending guide assembled to the fixing member;
The fixing member includes a fan-shaped through-hole for penetrating the wire harness, and the first opening is formed on the cross wiring side of the wire harness by expanding the diameter of the through-hole and expanding in a circular arc shape. A circular arc guide portion is provided on the upper and lower inner surfaces of the through-hole along the cylindrical guide portion, and the bending guide support tube having a cylindrical shape is slidably and rotatably fitted to the circular arc guide portion.
A terminal of an exterior material to be sheathed on the wire harness is fitted and locked to the bending guide support cylinder, and a wire group of the wire harness is drawn out from the bending guide support cylinder into the through hole, and the penetration guide There is provided a support device for an automobile wire harness characterized by being configured to be inserted into the inside of the vehicle body and / or slide member from a second opening having a reduced diameter on the other end side of the hole.

As described above, a support device for an automotive wire harness includes a sliding member and / or a fixing member that is fixed to the vehicle body, and an external material terminal of the wire harness that is routed between the vehicle body and the sliding member is internally fitted. The bending guide support cylinder to be stopped is assembled so as to be slidable and rotatable in accordance with the operation of the wire harness. By sliding the bending guide support tube in which the outer end of the wire harness is fitted and locked along the first opening of the fixing member in a circular arc shape, the inner wire has a large curvature. It can be gently bent with a radius (bending R), and the burden on the electric wire can be reduced. Therefore, even if the wire group drawn out from the bending guide support tube into the fan-shaped through hole is bent without being covered with the exterior material, the wire can be prevented from being damaged. Therefore, the support device can be made more compact than before because the outer packaging material is not penetrated.
Further, the operation of the wire harness can be stabilized by operating the bending guide support cylinder in which the outer end of the wire harness is fitted and locked in an arc shape.

  Further, both sides of the through hole between the enlarged first opening and the reduced second opening, even if the wire group led out from the bending guide support tube into the through hole is not covered with an exterior material. The excessive bending of the electric wire is also restricted by the surface. In particular, by setting both side surfaces of the through-holes to be gently curved surfaces, the group of wires drawn into the through-holes and being bent can be stabilized along the gently curved surface, and the burden on the wires can be further increased. Can be small.

  Further, by fitting the bending guide support tube to the arcuate guide portion not only to be slidable but also to rotate, the wire harness sheathed with the exterior material is twisted with the movement of the slide member. However, the bending guide support tube that is locked to the end of the exterior member is rotated, so that the twist is eliminated, and it is possible to prevent an excessive twisting force from acting on the internal electric wire.

Specifically, for example, the groove-shaped arcuate guide portion is provided on the upper and lower inner surfaces of the through hole along the first opening bulged in an arc shape, and is sandwiched between the upper and lower surfaces of the through hole. By providing an annular rib fitted to the guide portion on the outer peripheral surface of the bending guide support tube, the bending guide support tube is slidably and rotatably fitted to the arcuate guide portion.
It is preferable that a clearance is provided between the arcuate guide portion and the annular rib so as not to disturb smooth sliding and rotation of the bending guide support tube and to prevent rattling.

  The corrugated tube which coats the exterior material which consists of a corrugated tube in the cross wiring area of the wire harness, provides an annular uneven part on the inner peripheral surface of the support tube for bending guides, and externally attaches the uneven part to the wire harness It is preferable to engage with the annular concavo-convex portion on the terminal side.

According to the above-described configuration, the corrugated tube terminal and the bending guide are simply provided on the inner peripheral surface of the bending guide support tube by providing an annular uneven portion that can be engaged with the corrugating portion of the corrugated tube that is externally mounted on the wire harness. Locking of the support cylinder can be easily realized, and furthermore, since the annular concavo-convex portions are engaged with each other over the entire circumference, the locking can be made strong. Therefore, the corrugated tube can be prevented from falling off from the bending guide support cylinder.
In order to achieve stronger locking, the annular uneven portion is continuously provided over the entire inner peripheral surface of the large-diameter portion of the bending guide support tube that protrudes outward from the first opening. It is preferable that the annular concavo-convex portion of the corrugated tube terminal is engaged with the continuous annular concavo-convex portion.

The corrugated tube is preferably relatively soft and flexible. For example, rubber such as ethylene-propylene rubber (EPDM), various elastomers, and the like can be used, and in particular, an olefin elastomer is used. preferable.
On the other hand, the size of the bending guide support tube for fitting and locking the corrugated tube varies depending on the size of the corrugated tube for fitting and locking the corrugated tube. It is preferable that the length in the axial direction of the large-diameter portion for internally fitting and locking the end of the tube and the outer diameter thereof be approximately the same.

As described above, the bending guide support cylinder slides on the arcuate guide portion provided along the first opening. The sliding range can be appropriately determined according to the movable range (bending range) of the wire harness in the support device necessary to follow the movement of the sliding member. The angle formed by the axis of the bending guide support cylinder in the state of contact with the arcuate guide and the axis of the bending guide support cylinder in the state of contact with the other end of the arcuate guide portion is about 90 degrees. Is preferred.
On the other hand, the size of the second opening with the reduced diameter of the through hole is preferably set to a size that allows the wire harness of the wire harness to be pulled out without difficulty.

  When the slide member slides with vertical displacement, the fixing member is fixed to the vehicle body and / or the slide member by inclining in the vertical direction, and the arcuate guide portion on the first opening side. It is preferable that the bending support cylinder that slides along the sliding direction is slid while being inclined upward or downward depending on the sliding direction of the slide member.

For example, if the wire harness routed between the vehicle body and the slide member is also supported in a vertically movable state, the burden on the wire of the wire harness is reduced, and the wire harness is moved to the slide member. It can be made to follow smoothly by movement of.
As described above, the fixing member is fixed to the vehicle body and / or the slide member by being inclined in the vertical direction, and the bending support cylinder is slid while being inclined upward or downward depending on the sliding direction of the slide member. When configured to move, the wire harness can perform a smooth follow-up operation corresponding to the vertical movement of the slide member.
However, when the movement of the slide member is not accompanied by vertical displacement, the configuration is not limited to the above-described configuration, and the fixing member may be appropriately fixed according to the movement of each slide member.

  The slide member is not particularly limited as long as it is a slidable member, and examples thereof include a slide door and a slide seat.

Further, when the wire harness is a wire harness spanned between the vehicle body and the slide door, the wire harness takes a trajectory in a direction away from the getting on / off step of the vehicle body from the fully closed position of the slide door to the fully open position. Bend,
Preferably, the fixing member is fixed to the sliding door, and when the sliding door is opened, the bending support cylinder is rotated while being tilted downward to support the wire harness downward in the fully opened position.

  2. Description of the Related Art Conventionally, in order to constantly supply power to a sliding door, a structure in which a wire harness is inserted through a caterpillar-shaped cable guide and routed between a vehicle body and the sliding door is frequently used. As a wiring support structure for a wire harness using such a cable guide, a support device 6 having a rotation mechanism is provided on the vehicle body 4 and the slide door 5, and a cable guide 7 having a wire harness inserted through each support device 6 is provided. A cable guide 7 having a wire harness inserted into an S-shape is connected to the structure to be connected and supported (FIG. 7), or the support device 9 (9a, 9b) on the vehicle body 4 side and the slide door 5 side without a rotation mechanism. A structure to be connected and supported (FIG. 8) is mentioned. In FIG. 7, the cable guide 7 is covered with a rubber tube 8.

  However, in the former structure in which the cable guide 7 through which the wire harness is inserted is supported by the support device 6 having a rotation mechanism, as shown in FIG. 7, when the sliding door is fully closed (P3), the crossover portion of the wire harness is inside the vehicle. In addition to the problem of appearance when entering the occupant's field of view, there is also a problem that the indoor space is narrowed by the swelling of the crossover. Further, at the intermediate point (P2) for opening and closing the sliding door, the wire harness crossing portion is bent at a position where it can easily be stepped on between the getting-on / off step 4a of the vehicle body 4 and the sliding door 5, so There is also a risk of damaging the wire harness by stepping on it.

  On the other hand, in the latter structure in which the cable guide 7 having the wire harness inserted therein is connected to and supported by the support device 9 that does not have a rotating mechanism in an S shape, the connecting portion of the wire harness becomes long because the connection is made in an S shape. As shown in FIG. 8, when the sliding door is fully open (P1), the S-shaped bulge of the crossover portion of the wire harness comes into contact with the tire house 4b of the vehicle body 4 and damages the wire harness. There is also a risk of it.

  In both the former and the latter structures, since the cable guide 7 is used, the cost increases, and in order to follow the opening / closing operation of the slide door 5 accompanied by the vertical displacement, any support device 6 is used. 9 need to be provided with a vertically movable mechanism, and there is a problem that the structure is further complicated.

However, in the present invention, as described above, the fixing member is fixed to the sliding door, and when the sliding door is opened, the bending guide supporting cylinder is slid downward and slid while being rotated. By supporting the wire harness downward, the crossover portion of the wire harness does not swell toward the tire house side of the vehicle body. Accordingly, interference between the wire harness and the tire house can be prevented.
On the other hand, at the time of the closing operation of the sliding door, the bending guide support cylinder is rotated while being inclined and slid, and in the fully closed position, the wire harness can be supported sideways along the sliding door. The problem that the wire harness swells inside the vehicle can also be solved.
Furthermore, in the process from the fully closed to fully open of the sliding door, the wire harness is bent along a path away from the getting-on / off step, so that the wire harness is not stepped on accidentally when the passenger gets on / off.

  Also, when the sliding door is opened, there are many cases of upward displacement. As described above, when the sliding door is opened, the bending guide support cylinder slides while tilting downward from the sideways state. Since the wire harness is supported downward in the fully open position where the door is at a high position, even if the sliding door is displaced upward, the wire harness can be smoothly followed without receiving an excessive tensile force. That is, it is possible to sufficiently cope with the vertical displacement of the slide door without providing a separate vertically movable mechanism in the support device as in the prior art.

Further, as described above, the bending guide support cylinder is slid while rotating, so that even if the wire harness covered with the exterior material is twisted by the opening / closing operation of the slide door, the terminal of the exterior material is engaged. By rotating the bent support tube for bending guide, the twist of the wire harness is eliminated, and it is possible to prevent an excessive twisting force from acting on the internal electric wire.
Moreover, since it is not necessary to use a conventional cable guide and it is not necessary to wire the wire harness in an S shape, the cost can be reduced.

  In particular, the wire harness is supported in the downward direction in the fully open position of the sliding door, and the wire harness is supported in the lateral direction in the fully closed position, so that the support for the bending guide is in contact with one end of the arcuate guide portion. The angle formed by the axis of the tube and the axis of the bending guide support tube in a state of being in contact with the other end of the arcuate guide portion is 90 degrees, and the first opening is positioned on the cross wiring side of the wire harness Thus, it is preferable that the fixing member is fixed by being inclined 45 degrees in the vertical direction with respect to the slide door.

  The wire harness is passed through a through hole of a support device fixed to the vehicle body side in a state of being covered with a corrugated tube, and the vehicle body side support device supports the corrugated tube so that it cannot slide, rotate, and swing. It is preferable.

As described above, the support device on the vehicle body side is not provided with a mechanism for supporting the wire harness so as to be slidable and rotatable like the support device on the slide door side, but may be configured to support the swinging freely. The wire harness can smoothly follow the opening / closing operation of the sliding door, and the structure can be simplified and the cost can be reduced.
Moreover, since the wire harness penetrates the through hole in a state of being covered with a corrugated tube, the internal electric wire can also be protected from disconnection or the like.

  As described above, according to the present invention, the support tube for the bending guide in which the exterior material terminal of the wire harness is fitted and locked is slid in a pendulum shape along the first opening swelled in an arc shape. The inner electric wire can be gently bent with a large radius of curvature (bending R), and the burden on the electric wire can be reduced. Therefore, even if the wire group led out from the bending guide support tube into the fan-shaped through-hole is bent without being covered with the exterior material, a structure in which disconnection or the like does not occur can be obtained. The support device can be made compact as much as the exterior material does not penetrate into the hole.

  Further, as described above, the wire harness sheathed with the exterior material in accordance with the movement of the slide member by fitting the support tube for bending guide to the arcuate guide portion not only slidably but also rotatably. Even if twisting occurs, the twisting support tube that is locked to the end of the exterior material is rotated to eliminate twisting and to prevent an excessive twisting force from acting on the internal electric wire. it can.

  Further, as described above, the corrugated tube end and the bending guide can be obtained by simply providing an annular uneven portion that can be engaged with the uneven portion of the corrugated tube mounted on the wire harness on the inner peripheral surface of the bending guide support cylinder. The support cylinder can be easily locked, and furthermore, the ring-shaped concavo-convex portions are engaged with each other over the entire circumference, so that the lock can be firmly locked. Therefore, the corrugated tube can be prevented from falling off from the bending guide support cylinder.

  Further, when the fixing member of the support device is fixed to the slide door to support the wire harness spanned between the vehicle body and the slide door, as described above, when the slide door is opened, the bending guide By rotating the support cylinder while tilting and sliding downward, and supporting the wire harness downward in the fully open position, the wire harness transition portion does not swell toward the tire house side of the vehicle body, and the wire harness and the tire house Interference can be prevented.

  Further, according to the above configuration, when the sliding door is closed, the bending guide support cylinder is rotated while being tilted upward, and the wire harness is supported sideways along the sliding door in the fully closed position. Therefore, the problem that the wire harness swells inside the vehicle can be solved. Furthermore, in the process from the fully closed to fully open of the sliding door, the wire harness bends by taking a track away from the getting-on / off step, so that damage to the wire harness due to stepping can be prevented.

  Further, as described above, when the sliding door is opened, the bending guide support cylinder slides while tilting downward from the lateral state, and the wire harness is supported downward in the fully opened position where the sliding door is at a high position. Even if the sliding door is displaced upward, the wire harness can be smoothly followed without receiving an excessive tensile force. That is, it is possible to sufficiently cope with the vertical displacement of the slide door without providing a separate vertically movable mechanism in the support device as in the prior art.

Embodiments of the present invention will be described with reference to the drawings.
1 to 5 show an embodiment of the present invention. A support device (hereinafter referred to as a support device) 10 for an automobile wire harness is wired between a vehicle body 30 and a slide door 31. H is supported on the slide door 31 side.
As shown in FIGS. 1 and 2, the support device 10 is formed of a fixing member 11 fixed to the slide door 31 and a cylindrical bending guide support cylinder 17 assembled to the fixing member 11.

The fixing member 11 is based on the fixing portion 12 that is bolted to the slide door 31, and a fan-like through hole 13 for penetrating the wire harness is provided thereon.
The through-hole 13 is formed from a fan-shaped upper surface 14 and a lower surface 15, and both side surfaces 16 that connect the upper surface 14 and the lower surface 15, and an opening on one end side that expands and expands in an arc shape is defined as a first opening 13 a. The opening on the other end side having a reduced diameter is defined as a second opening 13b.
In addition, by making both side pieces 14b, 15b sandwiching the bulging arcs 14a, 15a of the fan-shaped upper surface 14 and the lower surface 15 into gentle curves, both side surfaces 16 are made gently curved surfaces, and the size of the second opening 13b is The size of the wire harness W / H is large enough to be pulled out without being pressed.
Further, along the first opening 13a, groove-shaped arcuate guide portions 14c, 15c are provided on the inner surfaces of the through hole upper surface 14 and the lower surface 15, respectively.

On the other hand, the bending guide support cylinder 17 guides the bending of the wire harness W / H by internally fitting and locking the end of the corrugated tube 20 which is an exterior material of the wire harness W / H. The cylinder 17 includes a large-diameter portion 17a that protrudes outward from the first opening 13a and engages and locks the corrugated tube 20, and a small-diameter portion 17b that is held in the through-hole 13 continuously to the large-diameter portion 17a. It is composed. In the present embodiment, the length of the small diameter portion 17b in the axial direction is slightly shorter than that of the large diameter portion 17a. The length of the large-diameter portion 17a of the bending guide support cylinder 17 in the axial direction is substantially the same as the outer diameter thereof, and the annular concavo-convex portion of the corrugated tube 20 end inserted through the entire inner peripheral surface of the large-diameter portion 16a. An annular uneven portion 17a-1 that engages with 20a is provided.
In addition, an annular rib 17b-1 is provided on the outer peripheral surface near the center in the length direction of the small-diameter portion 17b, and the arcuate guide portion 14c provided on the inner surface of the through hole upper surface 14 and the lower surface 13 sandwiching the support tube 17 for bending guide. 15c, the annular rib 17b-1 is slidably and rotatably fitted. Note that clearances are provided between the arcuate guide portions 14c and 15c to be fitted and the annular rib 17b-1 so that smooth sliding and rotation are possible and rattling does not occur.

  In the present embodiment, the bending guide support cylinder axis L1 in a state of being in contact with one end of the arcuate guide portions 14c and 15c and the bending guide in a state of being in contact with the other end of the arcuate guide portions 14c and 15c. The angle θ formed with the axis L2 of the support cylinder is 90 degrees, and the distance S1 from the intersection O between the axis L1 and the axis L2 to the first opening 13a is the same as the distance S2 to the second opening 13b.

Hereinafter, the fixing of the support device and the wiring of the wire harness W / H will be described.
The support device 10 is fixed to the slide door 31. At that time, the fixing member 11 is fixed to the slide door 31 by being inclined 45 degrees in the vertical direction so that the first opening 13a is positioned on the cross wiring side of the wire harness W / H (FIG. 4).
On the other hand, a support device 18 having a through hole 18a and capable of only swinging is fixed to the vehicle body 30 (FIGS. 3 and 5).

The wire harness W / H routed between the vehicle body 30 and the slide door 31 is covered with the corrugated tube 20 made of an olefin elastomer, and one end of the corrugated tube 20 is fixed to the slide door 31 side. The annular uneven portion 20a of the corrugated tube 20 is inserted into the annular uneven portion 17a-1 provided on the inner peripheral surface of the large diameter portion 16a. Engaged. Furthermore, the electric wire group of the wire harness W / H exposed from the end of the corrugated tube 20 that is fitted and locked is pulled out into the through hole 13 through the small diameter portion 17b and penetrated through the through hole 13 to form the second opening 13b. Pull out more. A wire group of the drawn wire harness W / H is inserted into the slide door 31 and a connector (not shown) connected to the terminal is connected to the connector of the door harness terminal routed in the slide door 31. .
On the other hand, the other end of the wire harness W / H is inserted through the through hole 18a of the support device 18 in a state of being covered with the corrugated tube 20, and a connector (not shown) connected to the end of the wire harness W / H is connected to the vehicle body. 30 is connected to the connector of the wire harness terminal routed to 30.

P1 of FIGS. 3-5 has shown the fully open state of the slide door 31, and P3 has shown the fully closed state. 3 and 5, P2 indicates a half-open state that is an intermediate stage.
As shown in these drawings, when the sliding door 31 is opened, the bending guide support cylinder 17 is rotated while being tilted downward (in the direction of arrow A in FIG. 4), and in the fully opened position (P1). The wire harness W / H is supported downward.
On the other hand, when the sliding door 31 is closed, the bending guide support tube is rotated while being tilted upward (in the direction of arrow B in FIG. 4), and the wire harness W / H is slid at the fully closed position (P3). It is supported sideways along the door 31.
Furthermore, in the process (P2) from the fully-closed to the fully-opened state of the slide door 31, the wire harness W / H is bent along a path away from the getting-on / off step 30a as shown in FIG.

  As described above, according to the present invention, the bending guide support cylinder 17 in which the end of the corrugated tube 20 of the wire harness W / H is fitted and locked is pendulum-shaped along the first opening 13a bulged in an arc shape. By sliding the inner wire, the inner wire can be gently bent with a large radius of curvature (bend R), and the burden on the wire can be reduced. Therefore, even if the wire group led out from the bending guide support cylinder 17 into the fan-shaped through-hole 13 is not covered with an exterior material such as the corrugated tube 20 and is bent, a structure in which disconnection or the like does not occur. The support device 10 can be made compact as much as the exterior material does not penetrate into the through hole 13.

  Further, as described above, the bending guide support cylinder 17 is fitted to the arcuate guide portions 14c and 15c not only to be slidable but also to be rotatable, so that the corrugated tube 20 is moved along with the movement of the sliding door 31. Even if the sheathed wire harness W / H is twisted, the bending guide support cylinder 17 that is locked to the end of the corrugated tube 20 is rotated, so that the twist is eliminated and an excessive twisting force is applied to the internal electric wire. Can be prevented from acting.

  Further, as described above, the annular uneven portion 17a-1 that can be engaged with the uneven portion 20a of the corrugated tube 20 that is externally mounted on the wire harness W / H is simply provided on the inner peripheral surface of the bending guide support cylinder 17. In addition, the corrugated tube 20 terminal and the bending guide support cylinder 17 can be easily locked, and the annular concavo-convex portions 17a-1 and 20a are engaged with each other over the entire circumference, so that the locking can be made strong. it can. Therefore, the corrugated tube 20 can be prevented from falling off from the bending guide support cylinder 17.

  Further, when the fixing member 11 of the support device 10 is fixed to the slide door 31 and the wire harness W / H spanned between the vehicle body 30 and the slide door 31 is supported, the slide door 31 as described above. When the bending guide support cylinder 17 is rotated, the bending guide support cylinder 17 is tilted downward and slid, and the wire harness W / H is supported downward in the fully open position (P1). It is possible to prevent interference between the wire harness W / H and the tire house 30b without swelling to the tire house 30b side of the vehicle body 30.

  According to the above configuration, when the sliding door 31 is closed, the bending guide support cylinder 17 is slid upward while rotating, and the wire harness W / H is slid at the fully closed position (P3). Therefore, it is possible to solve the problem that the wire harness W / H swells toward the vehicle interior 30 side. Furthermore, in the process from the fully closed to fully open of the slide door 31, the wire harness W / H bends by taking a track away from the boarding / alighting step 30a, so that damage to the wire harness W / H due to stepping can be prevented.

  Further, as described above, when the slide door 31 is opened, the bending guide support cylinder 17 slides while tilting downward from the lateral state, and the wire harness W / is at the fully open position (P1) where the slide door 31 is at a high position. Since H is supported downward, even if the slide door 31 is displaced upward, the wire harness W / H can be smoothly followed without receiving an excessive tensile force. That is, it is possible to sufficiently cope with the vertical displacement of the slide door without providing a separate vertically movable mechanism in the support device as in the prior art.

  Although the said embodiment is applied to a slide door, it is applicable similarly to a slide seat.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic perspective view of the support apparatus of the wire harness for motor vehicles of embodiment of this invention, (A) is the figure seen from the upper surface side, (B) is the figure seen from the 1st opening side center, (C) is the 1st. It is the figure seen from the one opening side edge part. It is a figure which shows the state which removed the upper surface and both sides | surfaces of a through-hole in the support apparatus of the wire harness for motor vehicles of embodiment of this invention. It is a schematic plan view which shows the state which fixed the support apparatus to the slide door and wired the wire harness between the vehicle body and the slide door. It is a figure which shows the wire harness support state of a support apparatus at the time of a sliding door full open and full close. It is a schematic front view which shows the state which fixed the support apparatus to the slide door and wired the wire harness between the vehicle body and the slide door. It is a figure which shows a prior art example. It is drawing which shows a prior art example. It is drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Automotive wire harness support apparatus 11 Fixing member 12 Fixing part 13 Through-hole 13a First opening 13b Second opening 14 Upper surface 14a Arc 14b Both sides 15 Lower surface 15a Arc 15b Both sides 16 Both sides 17 Bending guide support cylinder 17a Large Diameter part 17a-1 Annular uneven part 17b Small diameter part 17b-1 Annular rib

Claims (6)

A support device for an automotive wire harness that is routed between a vehicle body and a slide member,
A fixing member fixed to the slide member or / and the vehicle body;
A support tube for a bending guide assembled to the fixing member;
The fixing member includes a fan-shaped through-hole for penetrating the wire harness, and the first opening is formed on the cross wiring side of the wire harness by expanding the diameter of the through-hole and expanding in a circular arc shape. A circular arc guide portion is provided on the upper and lower inner surfaces of the through-hole along the cylindrical guide portion, and the bending guide support tube having a cylindrical shape is slidably and rotatably fitted to the circular arc guide portion.
A terminal of an exterior material to be sheathed on the wire harness is fitted and locked to the bending guide support cylinder, and a wire group of the wire harness is drawn out from the bending guide support cylinder into the through hole, and the penetration guide A support device for an automobile wire harness, wherein the second opening having a reduced diameter on the other end side of the hole is inserted into the vehicle body and / or the slide member.   The corrugated tube which coats the exterior material which consists of a corrugated tube in the cross wiring area of the wire harness, provides an annular uneven part on the inner peripheral surface of the support tube for bending guides, and externally attaches the uneven part to the wire harness The support apparatus of the wire harness for motor vehicles of Claim 1 engaged with the cyclic | annular uneven | corrugated | grooved part of the terminal side of this.   When the slide member slides in the up-down direction, the fixing member is fixed in the up-down direction with respect to the vehicle body and / or the slide member, and along the arcuate guide portion on the first opening side. The support device for an automotive wire harness according to claim 1 or 2, wherein the sliding support tube for bending is configured to slide while being inclined upward or downward depending on a sliding direction of the slide member.   The apparatus for supporting a wire harness for an automobile according to claim 1, wherein the slide member comprises a slide door or a slide seat. The wire harness is a wire harness spanned between a vehicle body and a sliding door, and the wire harness is bent by taking a trajectory in a direction away from the getting on / off step of the vehicle body from a fully closed position of the sliding door to a fully open position,
The fixing member is fixed to a sliding door, and when the sliding door is opened, the bending support cylinder is rotated while being tilted downward to support the wire harness downward in the fully opened position. The support apparatus of the wire harness for motor vehicles of Claim 4.   The wire harness is passed through a through hole of a support device fixed to the vehicle body side in a state of being covered with a corrugated tube, and the vehicle body side support device supports the corrugated tube so that it cannot slide, rotate, and swing. The apparatus for supporting a wire harness for an automobile according to claim 5.

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