JP2013009506A - Harness arrangement structure for door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the wire harness bending durability against closing and opening of a door and allow a harness arrangement structure to smoothly conduct the harness extra length accommodation.SOLUTION: A wire harness 3 is arranged along a door 1, rotatably provided at a vehicle body 15, so as to form a substantially lateral S shape from the vehicle body side when the door is closed, and the wire harness is held at a position close to a front part of the door by holding means so as to rotate in the vertical direction and move in the front-back direction. When the door is opened or closed, a substantially lateral S shaped part of the harness extends and contracts so that the harness extra length can be accommodated. The holding means includes a protector 7 for harness insertion which has a movable part 11 rotating and slide-engaging with a fixed part 8 of the door 1. The wire harness 3 is held on the rear part side of the door 1 by a fixing member 20 that is rotatable or unrotatable.

Description

  The present invention relates to a door harness routing structure for constantly supplying power to a hinged opening / closing (turning) side door such as a front or rear of an automobile by a wire harness.

  Conventionally, various types of harness wiring structures for doors have been proposed in order to supply power to electrical components and accessories of hinged doors such as the front side and rear side of automobiles.

  For example, in Patent Document 1, a wire harness is bent and wired in a downward U shape in a door, the U-shaped bent portion is connected in the front-rear direction by a spring piece, and the front end side of the wire harness is connected to the door. Connected to the vehicle body side along the recess on the front end side, fixing the rear end side of the wire harness to the door side, extending the U-shaped bent part against the bias of the spring piece when the door is opened, It is described that the bent portion is shortened to a U shape when the door is closed.

  In Patent Document 2, a protector is provided on the side door, a wire harness is fixed to the lower end of the protector with a clamp, and the wire harness is led out to the vehicle body side through a hard tube and a grommet while being wired in an arc shape in the protector. And make the rigid tube slidable in the front-rear direction along the door opening / closing opening, and bend the wire harness from an arc shape to a substantially horizontal V-shape in the extra length absorption space in the protector as the door opens and closes. Is described.

JP 2005-178466 A JP 2006-117054 A

  However, in the above conventional door harness routing structure, since the wire harness is bent and deformed into a U shape or a substantially horizontal V shape as the door is opened and closed, a large bending load is applied to the wire harness. In particular, there is a concern that bending durability may be lowered particularly when an aluminum wire or the like is used, and there is a concern that it is difficult to absorb the harness extra length smoothly when the door is opened and closed.

  The present invention has been made in view of the above points, and an object thereof is to provide a door harness routing structure that can improve the bending durability of a wire harness accompanying opening and closing of a door and can smoothly absorb the extra harness length. And

  In order to achieve the above object, the door harness routing structure according to claim 1 of the present invention is such that when the wire harness is closed from the vehicle body side along the door rotatably provided on the vehicle body. The wire harness is arranged in a substantially horizontal S-shape, and the wire harness is held by the holding means so as to be pivotable in the vertical direction and forward and backward in the forward and backward direction near the front portion of the door. The harness surplus length is absorbed by the expansion and contraction of the harness portion.

  With the above configuration, when the door is closed, the wire harness is compressed (shortened) in a substantially horizontal S-shape along the front-rear direction of the door to absorb the harness surplus length, and the substantially horizontal S-shaped wire harness portion is opened when the door is opened. Elongate or slightly (slightly meandering) in a substantially horizontal S-shape. The substantially horizontal S-shaped wire harness part is composed of a front trough and a rear peak. “Front and rear” corresponds to the front and rear of the vehicle. The holding means may be a protector, a band clamp, or the like, and includes a portion for fixing the wire harness and moving it forward and backward, and a portion for rotating the wire harness up and down. The holding means suppresses vibration in the radial direction (up / down / left / right direction) of the wire harness.

  The door harness routing structure according to claim 2 is the door harness routing structure according to claim 1, wherein the holding means has a movable part that rotates and slide-engages with a fixed part of the door. It includes a protector for insertion.

  With the above configuration, the movable part of the protector engages with the fixed part of the door so that the movable part can rotate in the vertical direction and freely move forward and backward (slide), and the wire harness fixed to the protector is integrated with the protector as the door is opened and closed. Rotate and advance and retract As an example, the fixed portion of the door may be a shaft portion, and the movable portion may be a long hole or a long groove that engages the shaft portion, or the fixed portion is a rotating frame portion having a long hole, and the movable portion is engaged with the frame portion. A shaft portion may be used.

  The length of the protector main body (portion excluding the movable portion) through which the wire harness is inserted can be appropriately set. For example, the length may be as short as the width of a band clamp or the like, or may be longer than the advance / retreat length of the wire harness. The shape of the protector is not limited to a straight shape, but may be a curved shape that substantially conforms to the horizontal S-shape of the wire harness. The protector prevents vibration in the radial direction (up / down / left / right direction) of the wire harness and swings (oscillates) when the door is opened / closed to easily bend (motivate) the wire harness into a substantially horizontal S-shape.

  The door harness routing structure according to claim 3 is the door harness routing structure according to claim 2, wherein the protector covers the wire harness with a length substantially equal to the amount of the slide. .

  With the above configuration, the expansion stroke of the wire harness is defined by the slide amount of the protector, the wire harness is protected in the protector having a length substantially equal to the slide amount, and the wire harness portion led out from the protector has a substantially horizontal S-shape. The lowermost part (valley bottom part) of the shape valley part and the top part of the peak part are formed to enable smooth bending.

  The door harness routing structure according to claim 4 is the door harness routing structure according to any one of claims 1 to 3, wherein the wire harness is held by a rotatable fixing member on the rear side of the door. It is characterized by that.

  With the above configuration, when the door is closed, the wire harness bends in a substantially horizontal S shape in a range from the vehicle body side through the harness holding means on the door front side to the harness fixing member on the rear side of the door. The fixing member is rotated upward along the door to smoothly form the hem portion of the rear half of the substantially horizontal S-shaped wire harness portion without excessive bending force. Further, when the door is opened, the wire harness is pulled and extended in the above range, and at that time, the harness fixing member rotates downward along the door to extend the wire harness straight. Even if a rotatable fixing member is used, if the wire harness has a sufficient length, the wire harness is not straight but is slightly bent (smallly meandering) and bent in a substantially horizontal S shape.

  The door harness routing structure according to claim 5 is the door harness routing structure according to any one of claims 1 to 3, wherein the wire harness is a non-rotatable fixing member on the rear side of the door. It is characterized by being held in a shape that maintains a horizontal S-shape.

  With the above configuration, when the door is closed, the wire harness bends in a substantially horizontal S shape from the vehicle body side through the harness holding means on the door front side to the harness fixing member on the door rear side. A non-movable harness fixing member positions the bottom part of the rear half of the substantially horizontal S-shaped wire harness portion along the door, and promotes a substantially horizontal S-shaped bending operation. In addition, when the door is opened, the wire harness is pulled and extends within the above range, but at that time, the harness fixing member that cannot rotate is positioned upward along the door to position the hem portion of the latter peak portion, and a little ( By extending the wire harness while maintaining a substantially horizontal S-shape (smallly meandering), the wire harness is guided to be surely bent into a substantially horizontal S-shape during the next door closing operation.

  The door harness routing structure according to claim 6 is the door harness routing structure according to any one of claims 1 to 5, wherein the wire harness portion from the door to the vehicle body side is the door or the door and The vehicle body is routed to a fixed portion on the vehicle body side without penetrating the vehicle body, and is positioned closer to the passenger compartment than the weather strip between the door and the vehicle body.

  With the above configuration, the wire harness portion easily passes through the front end of the door without penetration (grommetless), penetrates the vehicle body, and is routed to the harness fixing portion on the vehicle body side. Alternatively, the wire harness portion easily passes through the front end of the door without penetration (grommetless), and easily passes through the vehicle body without penetration (grommetless) and is routed to the harness fixing portion on the vehicle body side. In any case, since the wire harness portion is located closer to the passenger compartment than the weather strip, a waterproof structure becomes unnecessary.

  The door harness routing structure according to claim 7 is the door harness routing structure according to claim 6, wherein the wire harness portion from the door to the vehicle body side is routed without passing through the door. The wire harness portion is formed flat.

  With the above configuration, the flat wire harness portion from the vehicle body to the door is bent smoothly and satisfactorily with a small force when the door is opened, and the bending load applied to the wire harness portion is reduced. Further, the flat wire harness portion is smoothly inserted in a narrow space between the door and the vehicle body in a space-saving manner.

  According to the first aspect of the invention, it is possible to improve the bending durability of the wire harness by expanding and contracting the wire harness in a substantially horizontal S shape with a large bending radius in the front-rear direction of the door as the door is opened and closed. In addition, the harness extra length can be absorbed smoothly.

  According to the second aspect of the invention, the effect of the first aspect of the invention can be promoted by smoothly rotating and advancing and retracting the wire harness by the engagement of the fixed portion of the door and the movable portion of the protector. . Moreover, while protecting a wire harness with a protector, the vibration of the radial direction of a wire harness at the time of driving | running | working of a vehicle or a door opening / closing can be prevented, and durability of a wire harness can be improved.

  According to the third aspect of the invention, the protector protects the wire harness and prevents radial vibration, and the wire harness portion led out from the protector is bent to smoothly and surely secure the harness surplus in a substantially horizontal S shape. Long absorption can be performed.

  According to the fourth aspect of the present invention, the length of the wire harness can be shortened (low cost and light weight) by extending the wire harness straight with the rotatable fixing member.

  According to the fifth aspect of the present invention, the wire harness is bent in a substantially meandering horizontal S shape with a small meandering even when the door is opened by the rotatable fixing member, so that the wire harness can be surely substantially lateral S when the door is closed. It can be bent into a letter shape and the extra length can be absorbed smoothly and reliably.

  According to the sixth aspect of the present invention, the wire harness can be routed in the door or the vehicle body without penetrating (grommet-less) with good workability and at low cost, and the wire harness can be arranged closer to the passenger compartment than the weather strip. Non-waterproof wiring can simplify the structure and reduce the cost.

  According to the seventh aspect of the present invention, the flat wire harness portion can be smoothly bent between the vehicle body and the door to increase the bending durability, and the flat space is flat in the narrow space between the vehicle body and the door. The wire harness part can be passed smoothly.

It is a perspective view at the time of the door closing which shows 1st embodiment of the harness wiring structure for doors concerning this invention. It is a perspective view at the time of the door opening similarly showing 1st embodiment. It is a front view at the time of the door closing similarly showing 1st embodiment. It is a front view at the time of the door opening similarly showing 1st embodiment. It is a top view at the time of the door closing similarly showing 1st embodiment. It is a top view at the time of the door opening similarly showing 1st embodiment. It is a perspective view at the time of a door closing which shows 2nd embodiment of the harness wiring structure for doors which concerns on this invention. It is a perspective view at the time of the door opening similarly showing 2nd embodiment. It is a perspective view at the time of the door closing which shows 3rd embodiment of the harness wiring structure for doors which concerns on this invention. It is a perspective view at the time of the door opening similarly showing 3rd embodiment. It is a top view at the time of the door closing similarly showing 3rd embodiment. It is a top view at the time of the door opening similarly showing 3rd embodiment.

  1 to 6 show a first embodiment of a door harness wiring structure according to the present invention. 1, 3, and 5 show the state when the door is closed, and FIGS. 2, 4, and 6 show the state when the door is opened while changing the viewing direction.

  As shown in FIGS. 1 and 3, the wire harness 3 is routed in a substantially horizontal S-shape along the metal inner panel 2 of the automobile door 1, and the rear mountain from the trough 4 on the front side of the wire harness 3. The intermediate part 6 over the part 5 is covered with a protector (harness holding member) 7 made of synthetic resin, and the front end of the protector 7 is a stud clamp (shaft part or fixing part) 8 on the inner panel 2 with an arrow A (FIG. 3). The protector 7 is slidable in the front-rear direction along the stud clamp 8 as indicated by an arrow B (FIG. 3). The protector 7 and the stud clamp 8 constitute a harness holding means.

  The protector 7 is composed of a straight rectangular tubular portion (protector body) 9 and a horizontally long plate portion 10 formed on the upper side of the tubular portion 9 so as to protrude in the same longitudinal dimension as the tubular portion 9. A slit-like long hole (movable part) 11 in the front-rear direction is provided, and a stud clamp 8 is slidably engaged with the long hole 11. The plate part 10 having the long hole 11 may be referred to as a movable part. The length of the wire harness 3 covered by the protector 7, that is, the length of the cylindrical portion 9 is substantially equal to the slide amount of the protector 7, that is, the length of the long hole 11. Strictly speaking, the length of the protector 7 is slightly longer than the slide amount.

  The wire harness 3 is fixed to the inside of the cylindrical portion 7 by a fixing means (not shown) such as a binding band fastening, tape winding, or a rib engaging with the corrugation of the corrugated tube as an exterior material, and the stud clamp 8 is a long hole. A shaft portion that penetrates 11 and is fixed to the inner panel 2 by screwing or the like, and a retaining plate 8 a (FIG. 3) that is wider than the long hole 11 at the head portion of the shaft portion. In a state where the wire harness 3 is removed, the protector 7 rotates the rear end side downward (vertical direction) by its own weight with the stud clamp 8 on the front end side as a fulcrum.

  The trough portion 4 on the front side of the wire harness 3 is located on the front end side of the door 1, the crest portion 5 on the rear side is located in the middle portion or the rear half of the door 1, and the trough portion 4 is the lowermost portion 4a (FIG. 3). And a curved inclined portion 4b in the vicinity of the front and rear thereof, and the peak portion 5 is formed of a top portion 5a (FIG. 3) and a curved inclined portion 5b in the vicinity of the front and rear thereof, and the trough portion 4 on the front side and the mountain on the rear side. The portion 5 forms a substantially horizontal S-shaped harness portion.

  The tip (front end) of the upward inclined portion 4b on the front side of the front trough portion 4 is connected to the connector block (fixed portion) 12 on the vehicle body side, and the downward inclination continuing to the rear of the top portion 5a of the rear mountain portion 5 The part 5b is fixed to the rear part of the door inner panel 2 by a rotatable band clamp (fixing member not shown), and a harness part (not shown) following the downward inclined part 5b is an electrical component not shown in the door 1 It is connected to the auxiliary equipment.

  The rotatable band clamp (not shown) includes, for example, a horizontal circumferentially rotatable shaft portion, a pair of or non-rotating claw portions provided at the distal end of the shaft portion, and a base of the shaft portion. A wire harness bundling band part integrally provided at the end, with the claw part inserted and locked in a hole (not shown) of the door inner panel 2, and the shaft part in the claw part On the other hand, it rotates together with the band part (with the wire harness 3) in the circumferential direction of the shaft part.

  As shown in FIG. 3, a protector 7 is disposed on an inclined portion 6 that rises rearward (forward downward) between the lowermost portion 4 a of the valley portion 4 of the wire harness 3 and the top portion 5 a of the peak portion 5, and the front end of the protector 7 is A short inclined portion 4b exists between the lowermost portion 4a and the rear end of the protector 7 is located between the top portion 5a and a short inclined portion 5b. When the door is closed (when the door is fully closed), the stud clamp 8 is positioned at the front end 11a of the elongated hole 11 of the protector 7, and the protector 7 is slid rearward and obliquely upward as indicated by an arrow B.

  As shown in FIGS. 1 and 2, the door-side wire harness 3 and the protector 7 are covered with a synthetic resin door trim (only a part of which is shown) 13 and are safely protected without interference with the outside. The wire harness 3 performs a substantially horizontal S-shaped bend (compression operation) and a straight straight operation between the door inner panel 2 and the door trim 13 along the door inner panel surface 2, and the protector 7 similarly has a door inner panel. 2 and the door trim 13 are rotated up and down along the door inner panel surface 2 and slid back and forth.

  As shown in FIG. 5, the protector 7 is positioned in parallel along the door inner panel surface 2, and is rotatable and slidable along the panel surface 2 with the stud clamp 8 as a fulcrum. The harness part (valley part) 4 led out from the front end of the protector 7 does not penetrate the front end face 1a (FIG. 4) of the door 1 (without penetrating), and from the panel surface 2 of the door 1 when closed to the vehicle compartment 14. It continues to the connector block 12 on the vehicle body 15 side while being inclined apart toward the side.

  A waterproof rubber weather strip 18 is disposed between the vertical front end face 1 a of the door 1 and the vertical front end face 17 of the entrance 16 (FIG. 6) of the vehicle body 15, and the harness portion led out from the front end of the protector 7. The (valley) 4 is located closer to the vehicle compartment 14 than the weather strip 18, and the connector block 12 on the vehicle body side is also located closer to the vehicle compartment than the weather strip 18, thereby forming a double penetrationless structure.

  That is, in the existing structure, the wire harness 3 is penetrated through the front end face 1a of the door panel 2 and then penetrated through the vehicle body panel 17, and a waterproof grommet (not shown) is arranged in each penetration portion. In FIG. 2, a penetration-less and grommet-less structure is adopted on both the door 1 side and the vehicle body 15 side.

  As shown in FIGS. 2, 4, and 6, when the door 1 is opened, the substantially horizontal S-shaped wire harness 3 is pulled rearward or outward in the lateral direction with the connector block 12 on the vehicle body 15 side as a fulcrum, and extends straight. To do. The protector 7 slides forward with the stud clamp 8 as a fulcrum and is positioned horizontally. The stud clamp 8 is located at the rear end 11 b of the long hole 11 of the protector 7. The stud clamp 8 is rotatable integrally with the protector 7, and the rectangular retaining plate 8 a (FIG. 4) is positioned substantially horizontally along the long hole 11.

  A band clamp (fixing member) (not shown) in which the wire harness 3 is fixed to the rear portion of the door 1 rotates counterclockwise along the door panel surface 2 together with the wire harness 3 from the door closed state of FIGS. The wire harness 3 is positioned straight (horizontal).

  When the door is closed, the wire harness 3 having a substantially horizontal S-shape serves as a fulcrum for the connector block 12 on the vehicle body side (front side) and the band clamp (fixing member) (not shown) on the rear side of the door when the door is opened (fully opened). Furthermore, it extends straight in the middle part in the vertical direction of a substantially horizontal S shape. That is, the wire harness 3 extends smoothly and smoothly at an intermediate position in the height direction between the front trough 4 and the rear crest 5 of the wire harness 3. Thereby, the bending load (bending stress) which acts on the wire harness 3 is reduced.

  On the contrary, when the door is opened to when the door is closed, the straight wire harness 3 when the door is opened projects the valleys 4 and the peaks 5 with the same height (depth) up and down almost evenly when the door is closed. Therefore, it can be smoothly and smoothly bent into a substantially horizontal S-shape. Thereby, the bending load (bending stress) which acts on the wire harness 3 is reduced.

  As shown in FIG. 6, the harness portion derived from the front end of the protector 7 (the portion that forms the valley portion 4 when the door is closed) extends in a slightly inwardly curved shape in the substantially extending direction of the door panel surface 2. 16 is passed through the connector block 12 on the vehicle body side. Since the weather strip 18 is provided on the front end surface 1 a of the door 1 and the front end surface 17 of the entrance 16 of the vehicle body 4, the harness portion 4 passes closer to the vehicle compartment 14 than each weather strip 18. Accordingly, a waterproof structure other than the weather strip 18 is not necessary.

  7 to 8 show a second embodiment of a door harness routing structure according to the present invention. 7 shows the state when the door is closed, and FIG. 8 shows the state when the door is opened, as viewed from the passenger compartment side. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  When the door is fully closed in FIG. 7, the wire harness 3 is routed from the connector block 12 on the vehicle body side to the front end of the protector 7 on the door side in a substantially horizontal form with a trough 4 on the front side that is slightly downward, and then rises backward. It is routed into the door 1 while being fixed to be non-rotatable by a band clamp (harness fixing member) 20 that does not rotate at the rear lower side of the door, and becomes a peak portion 5 on the rear side of the large bending radius through the protector 7. Yes.

  Compared to the first embodiment, the valley 4 is shallower and the peaks 5 are larger. In FIG. 7, the protector 7 slides backward, and the stud clamp 8 is located at the front end of the long hole 11 of the protector 7. Further, the band clamp (harness fixing member) 20 at the rear portion of the door is not rotatable, and the peak portion 5 of the wire harness 3 is not straight but maintained at a low peak shape 5 ′ when the door is opened in FIG. Is maintained in the shallow valley shape 4 ′. That is, when the door is opened, the wire harness 3 is maintained in a substantially horizontal S shape with a small meandering. A wire harness portion 21 continuing rearward from the band clamp 8 is bent in a substantially U shape and fixed to the door inner panel 2 by another band clamp 22.

  In the state (not shown) in which the door 1 is half-opened from the door closed state of FIG. 7, the protector 7 is slightly rotated clockwise while moving forward with the stud clamp 8 as a fulcrum, and the longitudinal direction of the long hole 11 is almost the same. A stud clamp 8 is located at the center. Along with this, the trough 4 on the front side of the wire harness 3 becomes slightly deeper than in FIG. 7, and the crest 5 on the rear side becomes slightly lower than in FIG. 7.

  When the door of FIG. 8 is fully opened, the wire harness 3 extends from the connector block 12 on the vehicle body side to the harness fixing portion 20 at the rear of the door in a substantially horizontal S-shape with a large bending radius that is nearly straight (smallly meandering). The wire harness 3 has a downwardly curved trough 4 'having a large radius on the front side and an upwardly curved peak 5' having a large radius on the rear side, with the protector 7 as a boundary. The protector 7 moves forward, and the stud clamp 8 is positioned at the rear end of the long hole 11 of the protector 7. The stud clamp 8 is fixed to the door panel 2 so as to be rotatable in the circumferential direction and immovable in the clamp axis direction.

  In the example of FIGS. 2 and 4, the wire harness 3 that extends straight when the door is opened extends in a slightly bent state in a substantially horizontal S shape with a small meander in the example of FIG. 8. Even when the door 1 is fully opened, the wire harness 3 is maintained in a substantially horizontal S shape, so that when the door 1 is closed from the fully open state, the wire harness 3 smoothly bends into a substantially horizontal S shape so that the extra length is smooth. To absorb.

  The wire harness 3 is composed of a plurality of electric wires 23 and a synthetic resin bellows-like flexible corrugated tube (harness protection tube substituted with reference numerals 4 and 5) covering them. The electric wire 23 may be an aluminum electric wire, and even if it is an aluminum electric wire that is less flexible (easy to be brittle) than a copper wire, the electric wire 23 is always kept bent in a substantially horizontal S shape when the door 1 is closed and opened. By doing so, embrittlement can be prevented and bending durability can be improved. Needless to say, the aluminum electric wire is also suitable for the first embodiment and the third embodiment described later. It is also possible to fix the corrugated tube on the inner surface of the protector 7 by providing a ridge that engages with the concave groove in the circumferential direction of the corrugated tube (4, 5).

  9 to 12 show a third embodiment of a door harness routing structure according to the present invention. FIGS. 9 and 11 show the state when the door is closed, and FIGS. 10 and 12 show the state when the door is open, with the viewing direction changed. Illustrations corresponding to FIGS. 3 and 4 of the first embodiment are omitted. Components similar to those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  A difference from the first embodiment is that a grommet 24 is attached to a circular hole of the vehicle body panel 15 to penetrate the wire harness 3, and a wire harness portion 4 ″ between the grommet 24 and the door side protector 7 is provided. This is because it is formed flat in the door thickness direction to improve flexibility.

  As shown in FIGS. 9 and 11, a harness insertion hole is provided in the front end surface 15 a near the vehicle compartment 14 of the entrance 16 of the vehicle body 15 that faces the vertical front end surface 1 a of the door 1 when the door 1 is closed. A wire harness (a plurality of electric wires) 3 is inserted into the hole and sealed with a substantially cup-shaped elastic grommet 24. The harness portion 25 led out from the grommet 24 is connected to the connector block 12 on the vehicle body side while being bent in a substantially S shape in plan view.

  A flat wire harness portion 4 "passes from the door-side protector 7 to the vehicle body-side grommet 24 along the door inner panel 2 surface and passes through the front end 1a of the door 1 (does not penetrate through the front end surface 1a of the door 1). The flat wire harness portion 4 ″ allows the wire harness 3 to pass smoothly through a narrow space between the door 1 and the vehicle body 15 in the door thickness direction.

  As shown in FIG. 9, the flat wire harness portion 4 ″ is flat in the thickness direction of the door 1, and the rectangular tubular portion (protector body) 9 of the protector 7 is vertically moved to allow the flat wire harness portion 4 ″ to be inserted. It is formed wide and has a tapered harness guide portion 9a at the front end. The upper plate portion 10 of the rectangular cylindrical portion 9 has a long hole 11 as in the first embodiment, and a stud clamp 8 passes through the long hole 11 so as to be rotatable and is fixed to the door inner panel 2. . The protector 7 is rotatable in the vertical direction and slidable in the front-rear direction.

  As shown in FIGS. 11 and 12, waterproof weather strips 18 are provided in the vertical direction on the front end surface 1a of the door inner panel 2 and the front end surface of the entrance 16 of the vehicle body 15 outside the grommet 24. When the door is closed, the grommet 24 is positioned closer to the vehicle compartment 14 than the weather strip 18 and is waterproofed.

  The dotted line 4 shown in FIG. 12 is the trajectory of the wire harness 3 in the first embodiment, and the bending radius of the wire harness part 4 ″ from the protector 7 to the grommet 24 is smaller than that of the wire harness part 4 ″. It is flat. The flat wire harness portion 4 ″ is configured by, for example, arranging a plurality of electric wires 25 in parallel in a vertical corrugated tube or a flat mesh tube. A grommet 24 is connected to the front ends of these protective tubes. Has been.

  The wire harness portion 5 led rearward from the rear end of the protector 7 has a circular cross section as in the first embodiment. For example, a plurality of electric wires are inserted into a corrugated tube having a circular cross section. .

  When the door of FIG. 9 is closed, the wire harness portion (flat portion) 4 ″ from the protector 7 to the grommet 24 is bent downward to form a trough, and the protector 7 is not rotatable for fixing the wire harness at the rear of the door. The wire harness portion 5 up to the band clamp (harness fixing member) is bent upward to form a peak portion, and the wire harness 3 is bent (shortened) in a substantially horizontal S shape. Reference numerals 4 and 4 ″ are referred to as wire harness portions from the door 1 to the vehicle body side.

  When the door of FIG. 10 is opened, the wire harness 3 extends straight from the front grommet 24 to the rear band clamp in a front view. When the non-rotatable band clamp 20 is used as in the examples of FIGS. 7 and 8, the wire harness 3 is bent and elongated in a substantially horizontal S shape when the door is opened, as in the second embodiment. To do. In FIG. 11, reference numeral 13 denotes a part of the door trim.

  9-12, the wire harness part (25) from the grommet 24 on the vehicle body side to the connector block 12 is formed in a flat shape by arranging the electric wires 25 vertically or substantially in parallel. Thereby, the bendability of the wire harness portion 25 in the narrow space on the vehicle body side between the grommet 24 and the connector block 12 is enhanced.

  In each of the above embodiments, the wire harness 3 is held on the door side by the harness protection protector 7 so as to be rotatable and slidable. For example, the harness fixing tubular portion 9 of the protector 7 is attached to the band clamp 20. A plate portion 10 having a long hole 11 having a length equivalent to that in FIG. 1 or the like is integrally or separately fixed to the short cylindrical portion (9) (wire harness 3). It is also possible to adopt a configuration in which the plate portion 10 for sliding is provided on the band clamp 20 that is inserted and fixed.

  It is also possible to set the length of the cylindrical portion 9 to be longer than the sliding amount of the protector 7. The shape of the protector 7 is not limited to a straight shape, and may be an arc shape (curved shape) or the like that matches the shape of the mountain portion 5 of the wire harness 3, for example.

  The door harness routing structure according to the present invention improves the bending durability of the wire harness accompanying opening and closing of the door and smoothly absorbs the harness surplus length, for example, at the front and rear side doors of an automobile. Can be used.

DESCRIPTION OF SYMBOLS 1 Door 3 Wire harness 4,4 "Wire harness part 7 Protector 8 Stud clamp (fixing part)
11 Long hole (movable part)
12 Connector block (fixed part on the vehicle body)
15 Car body 18 Weather strip 20 Band clamp (fixing member)

Claims (7)

  A wire harness is routed in a substantially horizontal S-shape from the side of the vehicle body along the door provided rotatably on the vehicle body when the door is closed, and the wire harness is held by the holding means near the front of the door. A harness wiring structure for a door, wherein the harness harness length is absorbed by expansion and contraction of the substantially horizontal S-shaped harness portion when the door is opened and closed, and is held so as to be pivotable up and down and forward and backward. .   2. The door harness routing structure according to claim 1, wherein the holding means includes a harness insertion protector having a movable portion that rotates and slide-engages with a fixed portion of the door.   The door harness routing structure according to claim 2, wherein the protector covers the wire harness with a length substantially equal to the amount of the slide.   The door harness routing structure according to any one of claims 1 to 3, wherein the wire harness is held by a rotatable fixing member on a rear side of the door.   The door harness arrangement according to any one of claims 1 to 3, wherein the wire harness is held in a form in which the substantially horizontal S-shape is maintained by a non-rotatable fixing member on the rear side of the door. Cable structure.   A wire harness portion extending from the door to the vehicle body side is routed to the door or the door and the vehicle body to a fixing portion on the vehicle body side without penetrating the vehicle, and is closer to the passenger compartment than the weather strip between the door and the vehicle body The door harness routing structure according to any one of claims 1 to 5, wherein   7. The door harness routing according to claim 6, wherein when the wire harness portion from the door to the vehicle body side is routed to the door without penetrating, the wire harness portion is formed flat. Construction.

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