JP2008062890A - Wiring structure for slide door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiring structure for a slide door capable of increasing the slide amount of the slide door. <P>SOLUTION: In this wiring structure for a slide door, at least one of the supply of power and the transmission and receipt of an electric signal is performed through wire harness 31 between an electric device mounted on a slide door 3 opening and closing the door opening 13 of a vehicle body 2 and a vehicle body 2 side. The wiring structure comprises a protector 33 formed in the slide door 3 to contain the wire harness 31 therein and having an opening 55 at the lower end; and a rotating clamp protector 32 installed on the vehicle body 2 side and guiding the wire harness 31 extending to the vehicle body 2 side. The longitudinal end of the opening 55 is positioned at the generally same height as the rotating clamp protector 32. The center part of the opening 55 is positioned under the rotating clamp protector 32. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wiring structure for a sliding door that performs power feeding and transmission / reception of an electrical signal through a wire harness between a vehicle body side and an electrical component provided on the sliding door.

  In recent years, in many vehicles such as a wagon car and a one-box car, a sliding door that slides in the front-rear direction on the side of the vehicle body has been adopted. By adopting a sliding door, the door opening of the vehicle body can be formed widely, and even when there is little space on the side of the vehicle body, it is possible to easily get on and off and load and unload luggage Become.

  Various electrical components such as a power window motor, a door lock unit, a sensor, and a speaker may be provided on the slide door. In a vehicle equipped with such a sliding door, power supply and electrical signal transmission / reception are performed between the vehicle body side and each electrical component of the sliding door. The wire is always electrically connected by a wire harness in which a plurality of electric wires are bundled. A predetermined amount of slack (extra length) is provided in the wire harness so that the wired wire harness can follow the opening / closing operation of the slide door.

  However, if a slack is provided in the wire harness, the sliding portion of the wire harness may be damaged by interference with the slide door or other vehicle body members or abnormal noise may be generated with the opening / closing operation of the sliding door. was there. Therefore, conventionally, the wire harness is urged by an elastic member such as a leaf spring, and the slack is drawn into the slide door and absorbed, so that the wire harness is wound and fed according to the opening / closing operation of the slide door. It was like that. Such a conventional wiring structure for a sliding door is disclosed in Patent Document 1, for example.

JP 2004-136735 A

  In the conventional sliding door wiring structure, the wire harness extending from the vehicle body side to the sliding door is wired so as to bend (bend) upward from the rear of the vehicle body toward the front of the vehicle body, and connected to electrical components. Yes. That is, in the sliding door on the left side of the vehicle body, the wire harness is bent in the clockwise direction when viewed from the inside in the vehicle width direction, and then led out in the sliding door closing direction (front side of the vehicle body) and wired. In FIG. 2, after bending in the counterclockwise direction when viewed from the inside in the vehicle width direction, the wiring is led out in the sliding door closing direction. The wire harness wired on the slide door side is accommodated by the sag of the leaf spring being absorbed by the urging force of the leaf spring in the fully closed state of the slide door, while the urging force of the leaf spring in the fully open state of the slide door. It is curved and accommodated with a small diameter against it.

  However, in the above conventional configuration, since the winding length of the wire harness in the fully open state of the slide door becomes long, the door opening cannot be formed widely for the length of the wire harness. As a result, even if the conventional wiring structure for a sliding door can be applied to a relatively large vehicle such as a wagon vehicle or a one-box vehicle as described above, for example, a comparison with a light vehicle having a narrow door opening, etc. It was difficult to apply to a small vehicle.

  When the conventional sliding door wiring structure is to be applied to a small vehicle, first, the wiring structure itself needs to be downsized as a whole. As described above, when the wiring structure is reduced in size, the length of the wire harness is also shortened accordingly, so that the sliding amount of the sliding door is reduced. As a result, the door opening in the fully opened state of the slide door becomes further narrow, and the effect of providing the slide door cannot be obtained originally.

  In addition, in order to solve such problems, it is conceivable to form the wire harness longer, but in such a countermeasure, the protector that accommodates the wire harness is also becoming smaller with the miniaturization of the wiring structure. In the fully closed state and fully open state of the slide door, the wire harness cannot be efficiently accommodated in the protector. As a result, sagging of the wire harness is formed more than necessary, which may adversely affect the opening / closing operation of the slide door.

  Therefore, this invention solves the said subject, and it aims at providing the wiring structure for slide doors which can enlarge the sliding amount of a slide door.

The wiring structure for a sliding door according to the first invention for solving the above-mentioned problems is as follows.
In the wiring structure for the sliding door that performs at least one of power supply and electrical signal transmission / reception via the wire harness between the electrical component provided on the sliding door that opens and closes the door opening of the vehicle body and the vehicle body side,
A storage part provided in the sliding door for storing the wire harness, and having an opening at the lower end thereof;
A clamp portion that is provided on the vehicle body side and that guides the wire harness extending to the vehicle body side;
The opening has at least one end in the closing direction or the opening direction of the slide door at substantially the same height as the clamp, and the center is positioned below the clamp. It is characterized by that.

A wiring structure for a sliding door according to a second invention that solves the above problem is as follows.
In the sliding door wiring structure according to the first invention,
The clamp part is
An opening through which the wire harness passes,
A plane portion extending outward in the vehicle width direction from the lower edge of the opening hole,
The flat portion is provided so as to be flush with a scuff plate formed at a lower edge of the door opening.

  According to the wiring structure for a sliding door according to the first aspect of the present invention, power supply and electrical signal transmission / reception are performed between the electrical component provided on the sliding door for opening and closing the door opening of the vehicle body and the vehicle body side via the wire harness. In the wiring structure for the sliding door that performs at least one of the above, the wiring harness is provided on the sliding door to store the wire harness, the storage portion having an opening at the lower end thereof, the vehicle body side, and the vehicle body side. A clamp part for guiding the wire harness to be extended, and the opening part is positioned at substantially the same height as the clamp part at least one end part in the door closing direction or the door opening direction of the slide door. At the same time, the center portion is positioned below the clamp portion, so that the sliding amount of the sliding door can be increased.

  According to the sliding door wiring structure according to the second invention, in the sliding door wiring structure according to the first invention, the clamp portion includes an opening hole through which the wire harness passes and a lower edge of the opening hole. A flat portion extending outward in the vehicle width direction, and the flat portion is provided so as to be flush with a scuff plate formed at a lower edge of the door opening, thereby sliding the slide door. Accordingly, the wire harness can be moved smoothly.

  Hereinafter, the sliding door wiring structure of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing a wiring state of a wire harness in a sliding door fully closed state of a sliding door wiring structure according to one embodiment of the present invention, and FIG. 2 is a diagram of a sliding door wiring structure according to one embodiment of the present invention. FIG. 3 is a diagram showing the wiring state of the wire harness in the fully open state of the sliding door, FIG. 3 is a diagram showing the wiring state of the wire harness in the fully closed state and the fully open state of the sliding door, and FIG. 4 is a slide according to one embodiment of the present invention. FIG. 5 is a side view of the vehicle provided with the door wiring structure in the fully opened state of the sliding door, and FIG. 5 is a view of the vehicle provided with the sliding door wiring structure according to one embodiment of the present invention from the vehicle width direction inside.

  As shown in FIG. 4, the vehicle 1 is a small vehicle such as a light vehicle. The vehicle 1 includes a vehicle body (body) 2 that forms a skeleton thereof, and a slide door 3 that is supported by the vehicle body 2.

  A vehicle compartment 11 is formed in the vehicle body 2, and a rear seat 12 is provided behind the vehicle compartment 11. A door opening 13 is formed on the left side of the rear seat 12 in the vehicle body 2, and a scuff plate 14 is provided on the lower edge of the door opening 13. The scuff plate 14 extends along the lower edge of the door opening 13, and is formed on the inner side in the vehicle width direction from the rear end of the extension 15, and above the extension 15. And a bulging portion 16 that bulges.

  A slide door 3 is slidably supported by a slide mechanism 22 on the rear left side of the vehicle body 2, and the door opening 13 is opened and closed by sliding the slide door 3 in the longitudinal direction of the vehicle body. It has become. As shown in FIG. 5, a door trim 21 is provided inside the slide door 3 in the vehicle width direction. As shown in FIGS. 1 to 5, a harness wiring device 4 is provided between the vehicle body 2 and the slide door 3 to always electrically connect the two.

  The harness wiring device 4 includes a wire harness 31 formed by bundling a plurality of electric wires, a rotating clamp protector (clamp portion) 32 that supports the wire harness 31 on the vehicle body 2 side, and the wire harness 31 on the slide door 3 side. And a protector (accommodating portion) 33 to be supported. The rotary clamp protector 32, the protector 33, and the corrugated tube 34 are made of resin.

  The wire harness 31 is passed through a bendable corrugated tube 34 between the rotary clamp protector 32 and the protector 33 to be protected, and is connected to a battery (not shown), an ECU (electronic control unit) or the like provided in the vehicle body 2. In addition, various electrical components such as a power window motor, a door lock unit, and a speaker provided in the slide door 3 are connected. As a result, power supply current can be supplied to these electrical components and electrical signals can be transmitted / received. The power window is moved up and down, its operation is detected, the door is locked and its operation is detected, and the volume generated from the speaker is adjusted. Is done.

  The rotary clamp protector 32 is fitted in the mounting hole 16 a of the bulging portion 16. The rotary clamp protector 32 is formed in a cylindrical shape having a rectangular cross section, and the cross section of the rotary clamp protector 32 extends from the distal end disposed on the outer side in the vehicle width direction to the proximal end disposed on the inner side in the vehicle width direction. It is formed so as to become gradually smaller. One end side of the corrugated tube 34 passes through the opening hole 41 of the rotating clamp protector 32, and the corrugated tube 34 is rotatably supported by a rotation support member (not shown) at the base end of the opening hole 41.

  In addition, a bent portion 42 is formed integrally with the lower edge of the front end of the opening hole 41 to smoothly swing the corrugated tube 34 in the longitudinal direction of the vehicle body. The bent portion 42 has an L-shaped cross section, a flat portion 42a extending outward from the lower edge of the tip of the opening hole 41 in the vehicle width direction, and a vertical extending downward from the tip of the flat portion 42a. Part 42b. The flat portion 42 a and the vertical portion 42 b are fitted into the upper portion and the side portion of the extending portion 15.

  That is, in the rotary clamp protector 32, the tip of the opening hole 41 is flush with the side surface of the bulging portion 16, and the surface of the flat portion 42a and the surface of the vertical portion 42b are the upper surface and the side portion of the extending portion 15. The scuff plate 14 is fitted so as to become one. Thereby, even if the rocking | fluctuation of the corrugated tube 34 in the vehicle body front-back direction accompanying the opening / closing operation | movement of the sliding door 3 exceeds the bending part 42, the movement of the corrugated tube 34 in the junction part of the scuff plate 14 and the bending part 42 is carried out. It is done smoothly without disturbing.

  The protector 33 is provided below the slide door 3 between the slide door 3 and the door trim 21 that covers the slide door 3 from the inside. The protector 33 includes a thin base member 51 disposed on the slide door 3 side, and the door trim 21. And a cover member 52 which is disposed on the side and engages the base member 51 so as to cover it. That is, the base member 51 is fixed to the slide door 3 in a state where the cover member 52 is locked to the base member 51. 1 and 2, the inside of the protector 33 is shown, and the cover member 52 is indicated by an imaginary line.

  The base member 51 includes a substrate 53 that faces the slide door 3, and a wall-shaped curved portion 54 that is curved along the upper edge of the substrate 53 and is erected on the cover member 52 side. As a result, a slit-like opening 55 is formed at the lower end 53a of the substrate 53, and the rear end of the curved portion 54 is continuous with the opening 55 and the opening direction of the slide door 3 (rear side of the vehicle body). ) Is formed so as to open toward (). In the figure, the slit-shaped opening 55 is indicated by hatching.

  The substrate 53 is provided with a bending restricting portion 57 that is annular and stands on the cover member 52 side. A spring support portion 58 is formed at the rear end of the bending restricting portion 57. One end of a leaf spring 59 is sandwiched between the spring support portions 58, and an arc-shaped spring cap 60 is attached to the other end of the leaf spring 59. And the leaf | plate spring 59 and the spring cap 60 are urging | biasing the corrugated tube 34 extended in the upper direction by extending the front-end | tip ahead. The other end side of the corrugated tube 34 is fixed by a fixing member (not shown) at a position indicated by A in FIG.

  On the other hand, the cover member 52 has a plate shape and is formed slightly shorter above the base member 51. That is, the lower end 52 a of the cover member 52 is disposed above the lower end 53 a of the substrate 53 of the base member 51, and the lower ends 52 a and 53 b form the edge of the opening 55. Since both ends of the lower ends 52a and 53a in the longitudinal direction of the vehicle body are warped upward, both ends of the opening 55 are formed so as to be positioned above the central portion.

  That is, the wire harness 31 is bundled at a predetermined position through a path from a battery, ECU, or the like provided in the vehicle body 2 and then wired in the corrugated tube 34 on the proximal end side of the rotary clamp protector 32. Then, the wire harness 31 (corrugated tube 34) that has passed through the opening hole 41 of the rotary clamp protector 32 extends to the slide door 3 side, passes through the opening 55, and is wired in the protector 33.

  Next, the wire harness 31 (corrugated tube 34) wired in the protector 33 extends from the front end side in the protector 33 to the rear end side along the curved portion 54, and is biased upward by the leaf spring 59. However, it is derived from the outlet 56. That is, the wire harness 31 wired in the protector 33 is bent (bent) in the counterclockwise direction when viewed from the inner side in the vehicle width direction and led out from the outlet 56. The wire harness 31 led out from the lead-out port 56 is taken out from the corrugated tube 34 at a predetermined position and separated, and then is provided in the slide door 3 through each path. Connected to various electrical components such as speakers.

  Next, the opening / closing operation | movement of the slide door 3 is demonstrated using FIG.

  First, in the opening operation of the slide door 3, as shown by the solid line in FIGS. 1 and 3, the protector 33 is disposed in front of the rotary clamp protector 32 in the fully closed state of the slide door. As a result, the wire harness 31 wired in the protector 33 is pulled backward with the rotary clamp protector 32 as a fulcrum while being urged upward by the leaf spring 59 (spring cap 60). Long) is absorbed. At this time, the wire harness 31 enters from the rear end of the opening 55, extends from the front end side in the protector 33 to the rear end side along the curved portion 54, and then is led out in the door opening direction. Therefore, it is bent in a substantially circular shape surrounding the bending restricting portion 57.

  Next, when the door opening operation is performed from the fully closed state of the slide door, the protector 33 moves rearward, and the wire harness 31 moves forward along the lower end 52a of the cover member 52 with respect to the protector 33 (FIG. 1). (Indicated by a two-dot chain line). At this time, as the protector 33 approaches the rotary clamp protector 32 from the front, the amount of sag of the wire harness 31 gradually increases, but increases according to the amount of movement of the protector 33 due to the upward biasing force of the leaf spring 59. The amount of sagging is absorbed.

  That is, when the protector 33 moves rearward, the wire harness 31 disposed in the opening 55 moves from the rear end side to the front end side of the opening 55, and the wire harness 31 enters the protector 33. The winding amount (absorption amount) is increased, and the diameter of the wire harness 31 bent in a substantially circular shape is gradually increased. And when the said fixing means of the protector 33 moves to the position facing the said rotation support member of the rotation clamp protector 32 in the vehicle width direction, the wire harness 31 is expanded most (shown by a two-dot chain line in FIG. 1). ).

  Further, when the protector 33 moves rearward from the rotary clamp protector 32, the wire harness 31 disposed in the opening 55 moves to the front end of the opening 55 along the lower end 52a of the cover member 52 (FIG. 2). Indicated by a two-dot chain line). At this time, as the protector 33 moves rearward from the rotary clamp protector 32, the wire harness 31 is pulled forward with the rotary clamp protector 33 as a fulcrum, so the wire harness 31 resists the urging force of the leaf spring 59. And press down. As a result, the feeding amount of the wire harness 31 from the inside of the protector 33 is increased, and the wire harness 31 bent in a substantially circular shape is deformed into a substantially semicircular curved shape while being reduced in diameter.

  Then, as shown by the solid line in FIG. 2 and the two-dot chain line in FIG. 3, when the sliding door is fully opened, all the slack is drawn out, so that the feeding amount is the largest. At this time, the wire harness 31 enters from the front end of the opening 55, extends from the front end side in the protector 33 to the rear end side along the curved portion 54, and then is led out in the door opening direction. Therefore, it is bent in a substantially semicircular shape surrounding the bending restricting portion 57 and is in a state where the diameter is most reduced.

  On the other hand, in the door closing operation of the slide door 3, the protector 30 is disposed behind the rotary clamp protector 32 in the fully closed state of the slide door, as shown by the solid line in FIG. Thereby, the wire harness 31 wired in the protector 30 is pulled downward against the urging force by pulling forward with the rotary clamp protector 32 as a fulcrum, and the slack is also absorbed. The At this time, the wire harness 31 enters from the front end of the opening 55, extends from the front end side in the protector 33 to the rear end side along the curved portion 54, and then is led out in the door opening direction. Therefore, it is bent in a substantially semicircular shape surrounding the bending restricting portion 57.

  Next, when the door closing operation is performed from the fully open state of the slide door, the protector 33 moves forward, and the wire harness 31 moves backward with respect to the protector 33 along the lower end 52a of the cover member 52 (two points in FIG. 2). (Indicated by a chain line). At this time, as the protector 33 approaches the rotary clamp protector 32 from the rear, the amount of sag of the wire harness 31 gradually increases, but increases according to the amount of movement of the protector 33 due to the upward biasing force of the leaf spring 59. The amount of sagging is absorbed.

  That is, when the protector 33 moves forward, the wire harness 31 disposed in the opening 55 moves from the front end side to the rear end side of the opening 55, and the wire harness 31 into the protector 33 is moved. The winding amount (absorption amount) is increased, and the wire harness 31 bent in a substantially semicircular shape is deformed into a substantially circular curved shape while expanding in diameter. And when the said fixing means of the protector 33 moves to the position facing the said fixing means of the rotation clamp protector 32 in the vehicle width direction, the wire harness 31 is expanded most (indicated by a two-dot chain line in FIG. 1). .

  Further, when the protector 33 moves further forward than the rotary clamp protector 32, the wire harness 31 disposed in the opening 55 moves along the lower end 52a of the cover member 52 to the rear end of the opening 55 (FIG. 1 as indicated by a two-dot chain line). At this time, as the protector 33 moves away from the rotary clamp protector 32, the wire harness 31 is pulled upward by the rotary clamp protector 32 while being urged upward by the leaf spring 59. Thereby, the winding amount of the wire harness 31 in the protector 33 is reduced, and the diameter of the wire harness 31 bent in a substantially circular shape is reduced.

  1 and 3, when the sliding door is fully closed, the wire harness 31 enters from the rear end of the opening 55 and is rearward along the curved portion 54 from the front end side in the protector 33. Since it extends to the end side and is led out in the door opening direction, it is bent in a substantially circular shape surrounding the bending restricting portion 57.

  In this embodiment, the sliding door wiring structure provided between the sliding door supported on the left side of the vehicle body has been described. It is of course possible to provide such a sliding door wiring structure.

  Therefore, according to the wiring structure for a sliding door according to the present invention, the protector 33 for housing the wire harness 31 extended from the vehicle body 2 side is provided on the sliding door 3 side, while extending to the vehicle body 2 side on the vehicle body 2 side. A rotating clamp protector 33 for guiding the wire harness 31 to be opened, and the opening 55 opened at the lower end 52a of the protector 33 has a rotating clamp protector 33 at least at one end of the sliding door 3 in the closing direction or the opening direction. And the lower end 52a, 53a so that the front and rear ends of the opening 55 are at the same height as the rotary clamp protector 32 by positioning the central part below the clamp part. The front and rear ends of the door will warp upward, and the fully open position and the fully closed position of the sliding door will be increased by the amount of warpage. Since rolling can be set farther than the clamp protector 32, it is possible to increase the amount of sliding of the sliding door 3.

  Further, the bent portion 42 of the rotary clamp protector 32 includes a flat portion 42a that extends outward from the lower edge of the opening hole 41 through which the wire harness 31 passes, and a downward direction from the tip of the flat portion 42a. The flat portion 42 a and the vertical portion 42 b are provided so as to be flush with the scuff plate 14 formed at the lower edge of the door opening 13, so that the scuff plate 14 and the bent portion 42 are provided. Since the movement of the wire harness 31 is not hindered at the connecting portion, the movement of the wire harness 31 accompanying the slide movement can be performed smoothly.

  The present invention can be applied to a wiring structure for a sliding door that does not generate an excessive bending force or pushing force on the wire harness.

It is the figure which showed the wiring condition of the wire harness in the sliding door fully closed state of the wiring structure for sliding doors concerning one Example of this invention. It is the figure which showed the wiring condition of the wire harness in the sliding door full open state of the wiring structure for sliding doors based on one Example of this invention. It is the figure which showed the wiring condition of the wire harness in the fully closed state and fully open state of a slide door. 1 is a side view of a vehicle having a sliding door wiring structure according to an embodiment of the present invention in a fully open state of a sliding door. It is the figure seen from the vehicle width direction inner side of the vehicle provided with the wiring structure for sliding doors which concerns on one Example of this invention.

Explanation of symbols

2 Car body 3 Slide door 4 Harness wiring device 12 Rear seat 13 Door opening 14 Scuff plate 31 Wire harness 32 Rotating clamp protector 33 Protector 34 Corrugated tube 51 Base member 52 Cover member 52a Lower end 53 Substrate 53a Lower end 54 Bent portion 55 Opening 56 Lead Outlet 57 Bending restriction part 59 Leaf spring

Claims (2)

In the wiring structure for the sliding door that performs at least one of power supply and electrical signal transmission / reception via the wire harness between the electrical component provided on the sliding door that opens and closes the door opening of the vehicle body and the vehicle body side,
A storage part provided in the sliding door for storing the wire harness, and having an opening at the lower end thereof;
A clamp portion that is provided on the vehicle body side and that guides the wire harness extending to the vehicle body side;
The opening has at least one end in the closing direction or the opening direction of the slide door at substantially the same height as the clamp, and the center is positioned below the clamp. A wiring structure for a sliding door characterized by that. In the wiring structure for sliding doors according to claim 1,
The clamp part is
An opening through which the wire harness passes,
A plane portion extending outward in the vehicle width direction from the lower edge of the opening hole,
The sliding door wiring structure, wherein the flat portion is provided so as to be flush with a scuff plate formed at a lower edge of the door opening.

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