JP5098591B2 - Door harness wiring structure - Google Patents

Description

  The present invention relates to a wiring structure for a door harness that extends from the door of an automobile to the vehicle body side. Specifically, the door harness is routed indoors from the hinge connection between the door and the vehicle body and inside the weather strip. Thus, the wiring work is facilitated and the waterproofing measures are simplified.

  Conventionally, a door harness connected to an electrical component attached to a side door of an automobile is routed inside a door composed of a door outer panel and a door inner panel, and a grommet is externally attached to a crossing portion to the vehicle body. The vehicle body locking portions provided at both ends of the grommet are fitted and locked to through holes formed in the vehicle body side end surface of the door panel and through holes formed in the vehicle body panel.

  The operation of penetrating the door harness through the through hole formed in the panel is very difficult. In addition, since the conventional door harness is routed near the rotating shaft of the hinge H between the vehicle body and the door, it is outside the weather strip, and the vehicle body side and the door side have different vertical heights. When the door is opened and closed, the door harness is only bent and twisted and does not expand or contract. Thus, because it is outside the weather strip, it is necessary to attach the grommet to the exterior of the span of the door harness in a waterproof state in the through hole, and labor is required to install the grommet in the through hole. There is also a problem.

In order to solve the above problem, the present applicant previously provided a number of door harness wiring structures including Japanese Patent Laid-Open No. 10-16668 (Patent Document 1) and Japanese Patent Laid-Open No. 10-16669 (Patent Document 2). doing.
In Patent Document 1, as shown in FIG. 5 and FIGS. 6A to 6C, the door harness W / H spanning between the door 1 and the vehicle body 2 is routed indoors from the weather strip 3. The door harness W / H is sequentially passed through the four cylindrical members 4A to 4D connected by the hinges H1 to H3, and the ends of the opening and closing cylindrical members 4A and 4D are fixed to the door 1 and the vehicle body 2, respectively.
With the above configuration, the opening / closing cylinder members 4A to 4D are opened and closed with the hinges H1 to H3 as fulcrums according to the opening and closing operation of the door 1, and the door harness W / H can follow the opening and closing operation of the door 1.
In Patent Document 2, as shown in FIG. 7, the opening / closing cylinder members 4A and 4B are connected by a hinge H1, and 4C and 4D are connected by a hinge H2, as shown in FIGS. The door 1 can be opened and closed.
As in Patent Documents 1 and 2, when the door harness is routed, it is routed more indoors than the weather strip 3, so there is no need to provide a waterproof structure, and the door harness W / H can be easily installed. It can be expanded and contracted following the opening and closing of the door 1.

Japanese Patent Laid-Open No. 10-16668 Japanese Patent Laid-Open No. 10-16669

In the configuration of Patent Documents 1 and 2, since the opening and closing cylinder members 4A to 4D open and close using hinges as fulcrums, they can be opened when the door is opened to extend the extra length of the door harness W / H and the door. When closed, the door harness W / H can be bent to absorb the extra length.
However, in the door harness W / H, the height position and the width direction position of the opening / closing cylinder member 4A attached to the panel of the door 1 and the height position and width direction position of the opening / closing member 4D attached to the panel of the vehicle body 2 are relative to each other. When the door harness W / H follows the opening and closing of the door 1, the operation of expanding and contracting is added in addition to bending and twisting.
The open / close cylinder members 4A to 4D of Patent Documents 1 and 2 are connected by hinges H1 to H3 with respect to the movement of the door harness, and there is a problem that cannot be dealt with. is there.
Further, when the door 1 is opened, the electric wire of the door harness W / H is partially exposed to the outside between the opening and closing cylinder members separated from each other with the hinge as a fulcrum. In particular, in Patent Document 2, even when the door 1 is closed. A part of the door harness is exposed to the outside, and there is room for improvement in appearance.

  The present invention has been made in view of the above-described problems, and can follow the operation of the door harness according to the opening and closing of the door on the door harness that is bridged from the weather strip and the hinge to the indoor side between the door and the vehicle body, In addition, it is an object of the present invention to provide a door harness routing structure including a guide protector that prevents the door harness from being exposed to the outside.

In order to solve the above problems, the present invention is a routing structure of a door harness that is routed from the side door side to the vehicle body side through the interior side from the hinge coupling position of the weather strip and the side door and the vehicle body,
The door harness in the transition region is passed through a guide protector in which the door-side fixed cylinder member, the first rotary cylinder member, the second rotary cylinder member, and the vehicle body-side fixed cylinder member are sequentially connected in a freely rotatable manner,
While the door side fixed cylinder member and the vehicle body side fixed cylinder member protrude in the upside down direction,
The first, both the one of the second rotary cylindrical member in a shape having an upward bent portion other is a shape having a downward bent portion, the distal end and a second rotation of the bending curve portion of the first rotary cylinder member the tip of the bending curve portion of the tubular member is a rotational connecting portion coupled rotatably to face vertically (R2),
During closing of the door becomes the position where the 1st the rolling cylinder member is rotated to the second rotary cylindrical member side the rotary connecting portion (R2) as a fulcrum upward bent portion and a downward bent portion faces the vertical direction, while absorb the surplus length of the door harness overlapping first the counter position, the length of the lateral direction of the door harness inserting the second rotary cylinder member vertically,
During door opening rotationally moved to the second rotary cylinder member and the symmetry Direction said rotary connecting portion first rotating cylinder member (R2) as a fulcrum, the and the upwardly bent portion and the downward bent portion the rotational connecting portion (R2 ) Is moved in a bilaterally symmetric direction to extend the lateral length of the door harness, and a door harness routing structure is provided.

As described above, in the present invention, it is not necessary to take a waterproof measure in order to route the door harness extending between the vehicle body and the side door to the indoor side from the weather strip. This causes a complicated operation because it expands and contracts and twists occur.
In the present invention, the door harness that is routed between the vehicle body and the side door is packaged with a guide protector in which the door-side fixed cylinder member, the first and second rotating cylinder members, and the vehicle-body side fixed cylinder portion are sequentially and rotatably connected, The connecting portions of the first and second rotating cylinder members are connected so as to be rotatable in the vertical direction. The relative movement caused by the rotation of the first and second rotating cylinder members is such that when the door is closed, the upward and downward bent parts of the first and second rotating cylinder members are opposed to each other in the vertical direction. The length of the door harness that passes through the first and second rotating cylinder members at the opposing positions overlaps the vertical direction in the vertical direction, and the door harness passes through the first and second rotating cylinder members. The horizontal length of the long part can be absorbed in the vertical direction. On the other hand, when the door is opened, the first rotating cylinder member rotates in the left-right symmetric direction with respect to the second rotating cylinder member with the rotation connecting portion (R2) as a fulcrum, and the first and second rotating cylinder members have first, The lateral length of the extra length portion of the door harness that penetrates the second rotating cylinder member can be extended.

By such relative movement of the first and second rotating cylinder members, the wire harness penetrating through the first and second rotating cylinder members only receives a twisting action, and it is not necessary to expand and contract the wire harness itself.
Therefore, a partial load is not applied to the door harness that penetrates the inside of the guide protector, and the door harness is not inserted into the guide protector and exposed to the outside when the door is opened or closed. The appearance can also be improved.
The first rotating cylinder member and the second rotating cylinder member excluding the rotation connecting portion are preferably cylindrical and may have a rectangular cross section.

The first and second rotating cylinder members of the guide protector are each formed in a substantially U shape, the first and second rotating cylinder members are turned upside down, and the first rotating cylinder member is an upward U shape, Two rotating cylinder members are connected in a downward U-shape. Further, the first rotating cylinder member is rotatably connected to the door side fixed cylinder member so as to face the door side fixed cylinder member, and the second rotating cylinder member is connected to the vehicle body side fixed cylinder member so as to be rotatable up and down. It is preferable that
With this configuration, even in the bent portions on the door fixing side and the vehicle body fixing side of the first and second rotating cylinder members, even if the vertical heights of the door side fixing position and the vehicle body side fixing position are greatly different, the rotation connection The vertical displacement of the door harness can be absorbed together with the vertical bending portion of the portion. And since the both ends of the 1st and 2nd rotation cylinder member can be freely rotated by a rotation connection part, the 1st and 2nd rotation cylinder member can be rotated freely, and it makes it easier to follow the operation of a door harness. be able to.
The door fixing side may be a downward U-shape, and the vehicle body fixing side may be an upward U-shape.

The door-side fixed cylinder member connected to one end of the first rotary cylinder member via a rotary connecting portion fixes a bracket provided at the tip thereof to the door inner panel, and a door between the door inner panel and the door trim. The first rotating cylinder member is preferably drawn from the door toward the vehicle body side from the end on the side.
Further, the vehicle body side fixed cylinder member connected to one end of the second rotary cylinder member via the rotation connecting portion fixes a bracket provided at the tip thereof to the interior surface side of the vehicle body inner panel, and further, It is preferable to fix to the side surface of the instrument panel at a position close to the door facing surface.
Thus, on both the door side and the vehicle body side, the door harness and the exterior first and second rotating cylinder members are routed without penetrating the through holes formed in the door and the vehicle body. The wiring workability of the harness can be improved. Further, since the harness is routed on the indoor side from the weather trip and the guide protector is covered, theft can be prevented.

Rotation connecting portion between the first and second rotating cylinder members, a rotation connecting portion between the first rotating cylinder member and the door side fixed cylinder member, and a rotation connecting portion between the second rotation cylinder member and the vehicle body side fixed cylinder member. It is preferable that the tip ends of the cylinder portions opposed to each other are connected via an annular joint.
Specifically, for example, two annular protrusions are provided on the inner peripheral surface of the annular joint, and the upper annular protrusion is rotatable in an annular groove provided on the outer periphery of the downward bending portion of the second rotating cylinder member. On the other hand, the lower annular projection is rotatably fitted in an annular groove provided on the outer periphery of the upward bent portion of the first rotating cylinder member.
Alternatively, two annular protrusions are provided on the outer peripheral surface of the annular joint, and the upper annular protrusion is rotatably fitted in an annular groove provided on the inner periphery of the downward bending portion of the second rotating cylinder member, The lower annular projection is rotatably fitted in an annular groove provided on the inner periphery of the upward bent portion of the first rotating cylinder member. In this case, it is preferable that the joint is formed from POM or the like having good slidability, and the first rotating cylinder member and the second rotating cylinder member are formed from inexpensive PP.
Furthermore, without using a joint, one of the annular protrusions may be provided, while the other may be provided with an annular groove, and one annular protrusion may be fitted into the other annular groove and connected. In this case, it is preferable that the inner fitting member is made of POM and the outer fitting member is made of PP.

The first and second rotating cylinder members are preferably resin molded products.
Further, the first and second rotating cylinder members are each divided into two parts along the axial direction, and the divided body is joined by tape winding or fitting claws after inserting the electric wire group of the door harness. Preferably it is. With this configuration, the door harness can be easily penetrated into the first and second rotating cylinder members.

In the door harness routing structure of the present invention having the above-described configuration, the connecting portion of the door harness between the door and the vehicle body is routed indoors from the door hinge and the weather strip, and is externally covered by the guide protector. Since only the twist acts, the guide protector at the transition portion can smoothly follow the movement of the door harness according to the opening and closing of the door.
Therefore, a partial load is not applied to the door harness penetrating the inside of the guide protector, and the door harness is inserted inside the guide protector and exposed to the outside in any state when the door is opened or closed. Therefore, the appearance can be improved. Further, since the harness is routed on the indoor side from the weather trip and the guide protector is covered, theft can be prevented.

Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.
The door harness W / H is extended from the front end face of the side door 1 (hereinafter referred to as the door 1) to the vehicle body 2 and is routed between the door 1 and the vehicle body 2, and this cross wiring portion is a door hinge. The guide protector 10 is externally mounted on the door harness W / H of the transition portion, which is on the indoor side of the section 8 and the weather strip 3.

The guide protector 10 includes a first rotating cylinder member 11, a second rotating cylinder member 12, a door side fixed cylinder member 13, and a vehicle body side fixed cylinder member 14. These cylinder members 11-14 are connected to rotary joints 15A, 15B, 15C. Are sequentially connected to each other, and a transition portion between the door 1 and the vehicle body 2 of the door harness W / H is passed through the cylindrical members 11 to 14.
The first and second rotating cylinder members 11 and 12, the door-side fixed cylinder member 13, and the vehicle body-side fixed cylinder member 14 are resin molded products, respectively, and the first and second rotating cylinder members 11 and 12 are divided into two in the axial direction. Then, it is formed as a divided body (11a and 11b, 12a and 12b) connected by thin-walled hinges 11j and 12j, and after the door harness W / H is penetrated, it is locked and integrated.
The door side fixed cylinder member 13 and the vehicle body side fixed cylinder member 14 are formed as divided bodies (13e and 13f, 14e and 14f) which are divided into two in the axial direction and locked together.

  The first rotating cylinder member 11 has an upward U-shaped configuration in which upward bent portions 11d and 11e are provided at both ends of a horizontal cylinder portion 11c extending in the horizontal direction between the door 1 and the vehicle body 2, and upward at both ends. Annular projections 11h and 11i provided with annular grooves 11f and 11g, respectively, are provided at the upper ends of the bent portions 11d and 11e.

  The second rotating cylinder member 12 has a downward U-shape with downward bent portions 12d and 12e provided at both ends of a horizontal cylinder portion 12c extending in the horizontal direction between the door 1 and the vehicle body 2, and downward at both ends. Similar to the first rotating cylinder member, an annular protrusion having an annular groove is provided at the lower end of each of the bent portions 12d and 12e.

  The door side fixed cylinder member 13 includes a flange portion 13b at the upper end of the downward cylinder portion 13a, and an annular protrusion 13d having an annular groove 13c on the outer periphery of the lower end of the cylinder portion 13a. The flange portion 13b is fixed to the door inner panel 21.

  The vehicle body side fixed cylinder part 14 is provided with a flange part 14b at the lower end of the upward cylinder part 14a, and an annular protrusion provided with an annular groove on the outer periphery of the upper cylinder part 14a. The flange portion 14b is fixed to the side surface of the instrument panel 25 on the vehicle body side.

The lower end of the downward cylindrical portion 13a of the door side fixed cylindrical portion 13 and the upper end of the upward bent portion 11d of the first rotating cylindrical member 11 are rotatably connected via an annular joint 15A to form a rotary connecting portion R1. ing.
The upper end of the upward bent portion 11e of the first rotary cylinder member 11 and the lower end of the downward bent portion 12d of the second rotary cylinder member 12 are rotatably connected via an annular joint 15B to form a rotary connecting portion R2. ing.
The lower end of the downward bent portion 12e of the second rotary cylinder member 12 and the upper end of the upward cylinder portion 14a of the vehicle body side fixed cylinder portion 14 are rotatably connected via an annular joint 15C to form a rotary connection portion R3. is doing.

As shown in FIG. 2, the rotary connecting portions R1 to R3 are configured by providing upper and lower annular protrusions 15a and 15b on the inner peripheral surfaces of the annular joints 15A to 15B, and connecting the upper annular protrusion 15a to the rotational connection. An annular groove 11g, 11f provided on the outer periphery of the upper end of the cylindrical member located on the lower side, and rotatably fitted in an annular groove 13c provided on the outer periphery of the lower end of the cylindrical member positioned on the upper side. And so on.
By providing the rotation connecting portions R1 to R3, both ends of the first and second rotating cylinder members 11 and 12 are rotatably supported, and the first and second rotating cylinder members 11 and 12 are in contact with each other. Is preventing.

FIG. 3A shows a first modification of the rotary connecting portions R1 to R3.
While the upper ends of the bent portions 11d and 11e of the first rotary cylinder member 11 and the upper end of the upward cylinder portion 14a of the vehicle body side fixed cylinder portion 14 are provided with annular grooves 11m and 14m on the inner periphery, the second rotary cylinder member 12 is bent. The annular projections 12m and 13m are provided at the lower ends of the portions 12d and 12e and the lower end of the door side fixed cylinder member 13, and the annular projections 12m and 13m are rotatably fitted in the annular grooves 11m and 14m, so that the rotation connecting portion R1. -R3 is formed.

FIG. 3B shows a second modification of the rotary connecting portions R1 to R3.
The annular protrusions 15c and 15d are provided at the upper and lower ends of the annular joints 15D to 15F, and the annular protrusion 15e having a width narrower than the annular protrusions 15c and 15d is provided at the center in the vertical direction. On the other hand, the upper ends of the bent portions 11d and 11e of the first rotating cylinder member 11, the lower ends of the bent portions 12d and 12e of the second rotating cylinder member 12, the lower ends of the door-side fixing member 13 and the vehicle body side Annular grooves 11n, 12n, 13n, and 14n are provided on the inner periphery of the upper end of the fixed part 14, and the annular protrusions 15c and 15d of the joints 15D to 15F are fitted into the annular grooves 11n, 12n, 13n, and 14n to be rotationally connected. Portions R1 to R4 are formed. The central annular protrusion 15e prevents the upper and lower members from interfering with each other.

  The first rotary cylinder member 11 connected to the door side fixed cylinder part 13 fixed to the door inner panel 21 via the rotary connection part R1 includes the door inner panel 21 and a door trim (not shown) attached to the interior surface side thereof. In between, it pulls out to the vehicle body side through the opening provided in the door side opposing surface.

Next, the operation when the door 1 of the door harness W / H covered with the guide protector 10 is opened and closed will be described with reference to FIGS.
FIG. 4 (A) and FIG. 1 shows a state when opening the door 1, the first rotating cylinder member 11 and the second rotary cylindrical member 12 symmetrical to the left and right sides centering joint 15B (the rotational connecting portion R2) The horizontal cylindrical portions 11c and 12c extend in the left-right direction between the door 1 and the vehicle body 2 with the joint 15B interposed therebetween. In this state, first, the door harness W / H having passed through the inside of the second rotating cylinder member 11, 12 becomes extended state in the lateral transverse direction, to follow the open state of the door 1.

When the door 1 is rotated from the door open position shown in FIG. 4 (A) to the door closed position shown in FIG. 4 (B), the first rotary cylinder member 11 connected to the door-side fixed cylinder member 13 becomes the joint 15B (rotation). The connecting portion R < b > 2) rotates toward the second rotating cylinder member 12 , and the horizontal cylinder portion 11 c of the first rotating cylinder member 11 rotates to the lower side of the horizontal cylinder portion 12 c of the second rotating cylinder member 12. Accordingly, the portion of the door harness W / H-1 penetrating through the first rotating cylinder member 11 overlaps the portion of the door harness W / H-2 penetrating the second rotating cylinder member 12 in a vertical phase. Thus , the extension amount of the door harness W / H in the lateral direction is reduced, and the extra length of the door harness W / H generated when the door is closed is absorbed.

  That is, the vertical rotation connecting portion R1 between the first rotary cylinder member 11 and the door-side fixed cylindrical member 13, the vertical rotary connection portion R2 between the first rotary cylinder member 11 and the second rotary cylinder member 12, and the second rotary cylinder member 12. The door harness W / H is connected to the vehicle body side fixed cylinder member 14 at three positions of the vertical rotation connecting portion R3 so as to be freely rotatable in the vertical direction. Since the three rotation connecting portions R1 to R3 are provided in parallel with the axial direction of the door hinge, the three follow-up portions smoothly follow the opening and closing of the door.

Thus, in the present invention, since the door harness W / H that spans between the vehicle body 2 and the side door 1 is routed to the indoor side from the weather strip 3, it is not necessary to take measures against waterproofing.
Further, by arranging the door harness W / H indoors from the door hinge and the weather strip 3, the door harness W / H expands and contracts according to the opening / closing operation of the door 1, and the door harness W / H moves according to the opening / closing of the door 1. Can be followed.
Therefore, the guide protector 10 can be externally mounted on the crossover portion of the door harness W / H without applying a partial load to the door harness W / H penetrating the inside of the guide protector 10.
Moreover, since the door harness W / H is inserted into the guide protector 10 and is not exposed to the outside when the door 1 is opened or closed, the appearance can be improved. Moreover, theft which tries to open a door by crafting a harness can be prevented.

It is a perspective view which shows embodiment of this invention. It is a top view which shows a 1st, 2nd rotation cylinder member and a door side fixed cylinder member. The modification of a rotation connection part is shown, (A) shows a 1st modification, (B) shows a 2nd modification. (A) is a top view showing the state of the guide protector when the door is opened, and (B) is a top view showing the state of the guide protector when the door is closed. (A) (B) is a perspective view of a prior art example. (A), (B) and (C) are drawings showing the state of the conventional example when the door is opened and closed. It is a perspective view of other conventional examples. (A), (B) and (C) are drawings showing the state of the conventional example when the door is opened and closed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side door 2 Car body 3 Weather strip 10 Guide protector 11 1st rotation cylinder member 11c Horizontal cylinder part 11d, 11e Upward bending part 12 2nd rotation cylinder member 12c Horizontal cylinder part 12d 12e Downward bending part 13 Door side fixed cylinder member 14 Vehicle body Side fixed cylinder member 15A to 15B Fitting R1 to R3 Rotation connecting part 21 Door inner panel 25 Instrument panel W / H Door harness

Claims (5)

A wiring structure of a door harness that is routed from the side door side to the vehicle body side through the interior side from the weather strip and the hinge coupling position of the side door and the vehicle body,
The door harness in the transition region is passed through a guide protector in which the door-side fixed cylinder member, the first rotary cylinder member, the second rotary cylinder member, and the vehicle body-side fixed cylinder member are sequentially connected in a freely rotatable manner,
The door-side fixed barrel member and the vehicle body side fixed tube the first projecting in the vertical direction opposite to the member, together other downwardly bent portion when a shape having an upward bent portion of one of the second rotary cylindrical member a shape having the tip of the bending curve portion of the tip and the second rotary cylindrical member of the bending curve portion of the first rotary cylinder member is a rotational connecting portion coupled rotatably to face vertically (R2),
During closing of the door becomes the position where the 1st the rolling cylinder member is rotated to the second rotary cylindrical member side the rotary connecting portion (R2) as a fulcrum upward bent portion and a downward bent portion faces the vertical direction, while absorb the surplus length of the door harness overlapping first the counter position, the length of the lateral direction of the door harness inserting the second rotary cylinder member vertically,
When the door is opened, the first rotating cylinder member rotates in a symmetric direction with respect to the second rotating cylinder member with the rotation coupling portion (R2) as a fulcrum, and the upward bending portion and the downward bending portion serve as the rotation coupling portion (R2). A door harness routing structure , wherein the door harness is configured to extend in a laterally symmetrical direction to extend a lateral length of the door harness.   The first and second rotating cylinder members are each formed in a U-shape, the directions of the first and second rotating cylinder members are turned upside down, and the first rotating cylinder member is an upward U-shape and the second rotating cylinder member In addition, the first rotating cylinder member is connected to the door-side fixed cylinder member so as to be rotatable in the vertical direction, and the second rotating cylinder member is connected to the vehicle-body-side fixed cylinder member vertically. The door harness routing structure according to claim 1, wherein the door harness is rotatably connected to face each other. 3. The rotary connection portion (R 2) of the first and second rotary cylinder members is connected to a tip end of the vertically opposed cylinder portion by being rotatably fitted to an annular joint. The door harness routing structure described in 1.   4. The door harness routing structure according to claim 1, wherein the first and second rotating cylinder members are made of a resin molded product. 5. The first, the second rotary cylindrical member, respectively and divided bodies divided into two in the axial direction, the door according to claim 4 which is attached to the divided body after inserting the wire group of the door harness Harness wiring structure.

Images