JP2009273312A - Power feeding structure for slide door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the interference of a wire harness and a weatherstrip when a protector mounting position at the slide door side is shifted to the outer side of a vehicle due to requirements and the like of the vehicle. <P>SOLUTION: A power feeding structure for a slide door includes a protector 1 comprising a protector base 2 and a protector cover 3 arranged at the slide door 7, the weatherstrip 11 arranged at the lower side of the protector, and the wire harness 9 cabled from a laterally long lower opening 6 of the protector to vehicle body 8 side. A laterally long protruding part 5, which pushes out the wire harness to the vehicle body side, is provided at the lower end 17 side of the protector base 2 to prevent the interference of the weatherstrip and the wire harness at the time of opening and closing of the slide door. The protruding part 5 is arranged to the center side of the protector base 2 so as to contact the wire harness when the slide door is half opened. The front and rear ends 24, 25 of the protruding part 5 are made to continue gradually to the lower inner surface of the protector base 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a power supply structure for a sliding door using a protector for constantly supplying power to a sliding door of an automobile.

  3A and 3B show one form of a conventional sliding door power feeding structure (see, for example, Patent Document 1).

  In this structure, a protector 72 made of synthetic resin is arranged vertically on a slide door 71 of an automobile, a leaf spring 73 is arranged in the protector 72, and a wire 74 is attached by a cap 74 made of synthetic resin at the tip of the leaf spring 73. The harness 75 is supported and biased upward, one end of the wire harness 75 is routed to the slide door 71 side, and the other end of the wire harness 75 is connected to the harness fixture 78 on the vehicle body 77 side from the horizontally long lower opening 76 of the protector 71. The wire harness 75 is suspended by the urging force of the metal leaf spring 73 when the sliding door 71 is half open.

  The protector 72 is composed of a protector base 72a and a protector cover 72b. Both the parts 72a and 72b are fixed to each other by locking means (not shown) such as a locking claw and an engagement frame piece, and the protector base 72a is a bracket. 79, the slide door 71 is fixed to the vertical door inner panel 71a. The protector base 72 a and the protector cover 72 b include a vertical substrate portion 80 that faces each other, and a curved peripheral wall 81 that is orthogonal to the substrate portion 80.

  A horizontally elongated opening 76 for leading out the harness is located at the lower end side of the board portion 80, and a narrow opening 83 for leading out the harness is provided at the lower front end of the peripheral wall 81. The base end portion of the leaf spring 73 is fixed to the front end side of the protector base 72a, and an annular wall 82 that regulates the bending diameter of the wire harness 75 and the leaf spring 73 is formed on the front half side of the base plate portion 80 of the protector base 72a. Yes. A lower end portion 84 of the protector cover 72b is a harness guide curved toward the vehicle body (vehicle compartment side).

  The wire harness 75 includes a plurality of electric wires and an accordion corrugated tube made of synthetic resin on the outer periphery covering them. A corrugated tube has a circular cross section and an oval cross section (flat type). A structure in which an oval cross section is arranged vertically in a protector is described in Patent Document 2.

  There is also a protector (not shown) having a harness guide path (not shown) communicating with the narrow harness lead-out opening 83 along the peripheral wall 81. In this specification, the front / rear and up / down directions are made to coincide with the direction of the vehicle. At least the protector 72 and the leaf spring 73 constitute a power feeding device.

  3A shows a state in which the slide door 71 is close to being fully closed, and FIG. 3B is a state in which the slide door 71 is about to be fully opened.

  When the slide door 71 is fully closed, the slide door 71 is in close contact with the vehicle body 77 side, and the wire harness 75 is pulled backward with the harness fixture 78 as a fulcrum. When the sliding door 71 is half open, the wire harness 75 tends to hang down between the sliding door 71 and the vehicle body 77 (transition space). However, the leaf spring 73 lifts the wire harness 75 and pulls it into the protector 72 so that the extra length is obtained. Absorb. When the sliding door 71 is fully opened, the wire harness 75 is reduced in a loop shape while being pulled forward with the harness fixture 78 as a fulcrum.

  FIG. 4 is a longitudinal sectional view of a state in which a protector 51 basically similar to the above is disposed on a door inner panel 54 of a sliding door (a sectional view corresponding to the position of the arrow BB of the protector 72 in FIG. 3A). ).

  The lower end 55 of the protector base 52 is curved toward the vehicle body 56 along the shape of the door inner panel 54. The lower end portion 57 of the protector cover 53 is curved toward the vehicle body side as a harness guide, the lower end 57a of the protector cover 53 is positioned above the lower end 55a of the protector base 52, and the harness is led out between the lower ends 55a and 57a. A horizontally elongated opening 58 is located. Reinforcing ribs 59 are provided on the outer surfaces of the protector base 52 and the protector cover 53.

A waterproof weather strip 11 is horizontally disposed on the door inner panel 54 below the protector base 52. The wire harness 60 is routed from the lower opening 58 of the protector 51 to the vehicle body 56 side through the upper side of the weather strip 11.
JP 2004-136735 A (FIGS. 6 to 7) JP 2002-17032 A (FIG. 1)

  However, in the conventional structure shown in FIG. 4, when the mounting position of the protector 51 moves to the outside of the vehicle as indicated by the arrow C due to vehicle requirements or the like, the wire harness 60 is opened or closed (particularly when half open). Interferes with the weather strip 11 and the slide harness is fully closed while the wire harness 60 is caught on the weather strip 11, the wire harness 60 is sandwiched between the vehicle body and the slide door, or the wire harness is broken or broken. There was a concern to cause.

  In view of the above points, the present invention provides a power supply structure for a sliding door that can prevent interference between a wire harness and a weather strip when, for example, the mounting position of the protector is moved to the outside of the vehicle due to vehicle requirements or the like. For the purpose.

  To achieve the above object, a power supply structure for a sliding door according to claim 1 of the present invention has a protector comprising a protector base and a protector cover disposed on the slide door, and a weather strip below the protector. In the power supply structure for a sliding door in which a wire harness is routed from the horizontally long lower opening of the protector to the vehicle body side, a horizontally long shape that pushes the wire harness toward the vehicle body side at the lower end side of the protector base. The provision of the convex portion prevents interference between the weather strip and the wire harness when the sliding door is opened and closed.

  With the above configuration, when the sliding door is opened and closed, the wire harness swings along the lower opening of the protector with the harness fixing part (harness fixing tool) on the vehicle body side as a fulcrum, and rides on the convex part to move toward the vehicle body ( The position is corrected (toward the inside of the vehicle), and a gap is generated between the wire harness and the weather strip, and interference between the wire harness and the weather strip is prevented.

  A power supply structure for a sliding door according to a second aspect is the power supply structure for a sliding door according to the first aspect, wherein the convex portion is located closer to the center of the protector base so that the convex portion is in contact with the wire harness when the sliding door is half open. It is arranged.

  With the above configuration, during the opening and closing of the sliding door, for example, at the time when the central part of the protector is closest to the harness fixing part (harness fixing tool) on the vehicle body side and before and after that, the wire harness rides on the convex part. Interference with the weather strip is prevented. Also, when the sliding door is half open, the wire harness tends to hang down from the protector, but when the convex part is pushed to the vehicle body side, the amount of sag of the wire harness is reduced, and the wire harness is closed when the sliding door is closed. Contributes to pinching prevention. “Near the center” means the center or the vicinity of the center.

  The sliding door feeding structure according to claim 3 is the sliding door feeding structure according to claim 1 or 2, characterized in that the front and rear ends of the convex portion gently follow the lower inner surface of the protector base. And

  With the above configuration, when the door is opened from when the slide door is fully closed, the wire harness swings along the lower opening of the protector and smoothly runs from one end to the convex portion, and when the slide door is fully opened. When the door is closed, the wire harness swings along the lower opening of the protector and smoothly runs on the convex portion from the other end.

  The power supply structure for a sliding door according to a fourth aspect is the power supply structure for a sliding door according to any one of the first to third aspects, wherein a lower portion of the protector base is curved toward the vehicle body, and the convex portion is It is located under the lower end of the protector cover.

  With the above configuration, the lower part of the protector base is greatly curved toward the inside of the vehicle body, so that the wire harness is further pushed out to the inside of the vehicle body. Further, the wire harness is greatly curved toward the vehicle body inside along the lower part (curved wall) of the protector base, so that the amount of sag of the wire harness when the sliding door is half open is reduced.

  According to the first aspect of the present invention, for example, even when the mounting position of the protector is moved to the outside of the vehicle due to vehicle requirements, interference between the wire harness and the weather strip is prevented, and the wire harness is weathered when the slide door is opened and closed. The slide is prevented from being caught or rubbed by the strip, and the concern about pinching of the wire harness between the vehicle body and the breakage of the wire harness or wire breakage due to the sliding door being closed is eliminated. The operability of the door is ensured and the reliability of constant power supply to the sliding door is increased.

  According to the second aspect of the present invention, since it is only necessary to form the convex part partially along the horizontally long opening of the protector base, the integral resin molding of the convex part of the protector base is facilitated, and the protector is low in cost. It becomes.

  According to the third aspect of the invention, the wire harness rides smoothly and reliably on the convex portion along the end portion, so that a gap with the weather strip is reliably ensured and interference is reliably prevented.

  According to the fourth aspect of the present invention, the amount of wire harness pushed out toward the vehicle body is increased, and interference with the weather strip is more reliably prevented.

  1 to 2 show an embodiment of a power supply structure for a sliding door according to the present invention.

  In this structure, a convex portion 5 is integrally formed on the inner surface side of the lower end portion 4 of the protector base 2 of the protector 1 made of synthetic resin, and is led out from the lower opening 6 (FIG. 2) of the protector 1 to the vehicle body 8 side. The weather harness 11 made of a synthetic rubber for waterproofing (FIG. 2) provided on the slide door panel 10 (FIG. 2) below the protector 1 by bringing the wire harness 9 (FIG. 2) into contact with the convex portion 5. On the other hand, the wire harness 9 is led out and guided to the vehicle body side (the vehicle inner side) with a gap 12 therebetween.

  In FIG. 1, the protector 1 is illustrated as being reversed from the front and rear of the conventional example of FIG. 3. The protector 72 of FIG. 3 is disposed on the slide door 71 on the left side of the vehicle, whereas the protector 1 of FIG. It is arranged on the slide door 7 on the right side of the vehicle.

  An annular wall 13 for restricting harness bending is located on the front side of the protector 1 (the inside of the annular wall 13 is a through hole), and a metal leaf spring (see FIG. 3) from the front end side of the annular wall 13. The protector cover 3 is joined and fixed to the protector base 2 by a locking means (not shown), and is provided on the outside of the peripheral wall 14 of the protector 1 for leading out the harness on the front end side of the protector. A harness guide path 15 following the opening (see reference numeral 83 in FIG. 3) is provided, and the lower end portion 4 of the protector base 2 is greatly extended below the lower end 16 of the protector cover 3, and inside the lower end 16 of the protector cover 3. A horizontally long opening 6 for leading out the harness is located.

  The lower end portion 4 of the protector base 2 is a curved wall for a harness guide that is curved toward the protector cover side (vehicle body side or vehicle inner side), and the lower end 17 side in the longitudinal (front-rear) direction intermediate portion of the curved wall 4. A convex portion 5 is provided on the surface.

  As shown in FIG. 2, the convex portion 5 is formed in a mountain shape having a curved longitudinal section (substantially horizontal U shape), and the gently sloping upper side wall 18 is inclined at a steeper angle than that. Continuing to intersect the curved wall 4, the protruding tip portion 19 of the convex portion 5 is formed in an arc shape in the longitudinal section, and is formed on the substantially horizontal wall portion 20 on the lower side folded back to the slide door side (the vehicle outer side). in the process of.

  The lower end 16 of the protector cover 3 is located so as to face the upper portion of the convex portion 5. The protector cover 3 is covered with a synthetic resin door trim 21, and the lower end 16 of the protector cover 3 is located slightly below the lower end 21 a of the door trim 21.

  The wire harness 9 led out from the lower opening 6 of the protector 1 is brought into contact with the upper half portion 19a of the projecting tip portion 19 of the convex portion 5 so as to face the inside of the vehicle at a larger angle than in the prior art (FIG. 4). Curved, that is, the wire harness 9 starts to bend above the lower opening 6, and is largely pushed out to the vehicle inner side by the convex part 5 below the lower opening 6, and the weather below the convex part 5 There is a gap 12 between the strip 11 and it is led out to the vehicle body side without interference with the weather strip 11.

  The seal portion 11 a of the weather strip 11 is disposed slightly toward the vehicle inner side than the protruding tip 19 of the convex portion 5. The weather strip 11 of this example is a plate-like attachment fixed to the lower part of the door inner panel 10 of the slide door 7 and the annular elastic seal part 11a in contact with the panel (vertical wall of the staircase part) 22 on the vehicle body side. It is comprised with the part 11b. It is preferable that the protruding height of the convex portion 5 is set so that the gap 12 between the weather strip 11 and the convex portion 5 has a minimum necessary size.

  In FIG. 2, the wire harness 9 is routed directly from the substrate portion 23 of the protector base 2 to the convex portion 5 without contacting the curved wall 4. The wire harness 9 of this example is covered with a synthetic resin bellows-like corrugated tube, and the corrugated tube has a certain degree of rigidity. For example, a net-like tube with good flexibility is used, or the number of wires is small. In this case, the wire harness 9 can be brought into contact with the convex portion 5 while being in contact with the curved wall 4. In this case, the amount by which the wire harness 9 is pushed out to the inside of the vehicle by the convex portion 5 is as follows. The gap 12 with the weather strip 11 becomes even larger than in the case of FIG.

  2 is a cross-sectional view of the position corresponding to the arrow AA in FIG. 1. As shown in FIG. 1, the convex portion 5 is provided at a substantially central position in the front-rear direction of the protector base 10 and is shown when the slide door 7 is half open. As shown in FIG. 2, the position of the wire harness 9 is corrected by the convex portion 5.

  The front and rear end portions 24 and 25 of the convex portion 5 are smoothly inclined or curved (slowly change gradually) and are integrally connected to the inner surface of the curved wall 4 of the protector base 2. As shown in the enlarged view of FIG. 2, the inclined or curved front end 24 is gradually tapered toward the front end (front end) 24a. The rear end portion 25 is not tapered but is inclined or curved so as to be widened and smoothly follows the inner surface of the curved wall 4. It is also possible to make the front and rear end portions 24 and 25 have the same shape. The front and rear ends 24 and 25 prevent the wire harness 9 from being caught.

  That is, the wire harness 9 smoothly rides on the convex portion 5 along the rear end 25 when the sliding door 7 is opened from the fully closed position, and the wire harness 9 is moved forward when the sliding door 7 is fully opened. It smoothly rides on the convex part 5 along the end part 24.

  When the slide door 7 is fully closed, the wire harness 9 is led out to the vehicle body side in contact with the curved wall 4 behind the rear end 25 of the convex portion 5, and when the slide door 7 is fully opened, the wire harness 9 is convex. It leads to the vehicle body side in contact with the curved wall 4 in front of the front end 24 of the portion 5. It goes without saying that the wire harness 9 is routed from the protector 1 to a harness fixture on the vehicle body side (see the conventional reference numeral 78 in FIG. 3).

  A power feeding device is configured by the protector 1 and a leaf spring (not shown) for harness urging inside thereof. It is also possible to absorb the extra length in the protector 1 by removing the leaf spring and utilizing the rigidity (repulsive force) of the corrugated tube. Moreover, it is also possible to use a coil spring, a winding spring, etc. instead of a leaf | plate spring as an elastic member. Further, the shape of the protector 1 (whether it is curved or rectangular), the presence / absence of the harness lead-out path 15 and the like are appropriately set as necessary. In addition to the sliding door power feeding structure, the above configuration is also effective as a sliding door power feeding device or a wiring harness wiring structure.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a protector in a power supply structure for a sliding door according to the present invention (the inside is an enlarged view). It is an AA equivalent sectional view of Drawing 1 showing the electric supply structure for sliding doors similarly. 1A and 1B show an embodiment of a conventional power supply structure for a sliding door, in which FIG. 1A is an exploded perspective view showing a state in which the sliding door is almost fully closed, and FIG. It is BB equivalent sectional drawing of Fig.3 (a) which shows the similar form of the electric power feeding structure for conventional sliding doors.

Explanation of symbols

1 Protector 2 Protector base 3 Protector cover 4 Lower part (curved wall)
DESCRIPTION OF SYMBOLS 5 Convex part 6 Lower opening 7 Sliding door 8 Vehicle body 9 Wire harness 11 Weather strip 16, 17 Lower end 24, 25 End part

Claims (4)

  A protector comprising a protector base and a protector cover is disposed on the slide door, a weather strip is disposed on the lower side of the protector, and a wire harness is routed to the vehicle body side from a horizontally long lower opening of the protector. In the power supply structure for a slide door, the weather strip and the wire at the time of opening and closing the slide door are provided on the lower end side of the protector base by providing a horizontally long convex portion that pushes the wire harness to the vehicle body side. A power supply structure for a sliding door, characterized in that interference with a harness is prevented.   The power supply structure for a sliding door according to claim 1, wherein the convex portion is disposed near the center of the protector base so that the protruding portion contacts the wire harness when the sliding door is half open.   The feeding structure for a sliding door according to claim 1 or 2, wherein the front and rear end portions of the convex portion gently follow the lower inner surface of the protector base.   The lower part of the protector base is curved toward the vehicle body, and the convex part is located on the lower side of the lower end of the protector cover. Feeding structure.

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