JP2008222044A - Wiring structure for door harness - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To follow a three-dimensional extending/contracting action of a door harness in accordance with opening/closing of a door and to prevent exposure of the door harness to outside. <P>SOLUTION: One end of a first cylindrical member of a guide protector is fixed to a door inner panel, and one end of a fifth cylindrical member is fixed to a fixation member on a vehicle body side. Second to fourth cylindrical members are rotatably connected between the first cylindrical member and the fifth cylindrical member sequentially. Slant end faces abutting on each other are provided at connection ends between the first and fifth cylindrical members, and annular projecting/recessed rotating joint parts are projectingly provided on the slant end faces. The projecting rotating joint part of one of the opposing slant end faces is rotatably fitted and connected to the recessed rotating joint part of the other slant end face. When the door is closed, the second to fourth cylindrical members are rotated to form a U-shape so as to absorb a surplus length part of the door harness penetrating through the first to fifth cylindrical parts. When the door is opened, the second to fourth cylindrical members are rotated to the direction forming a linear shape so as to extend the surplus length part of the door harness penetrating through the first to fifth cylindrical parts. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wiring structure of a door harness that extends from the door of a car to the vehicle body side. More specifically, the wiring is performed by wiring the door harness indoors from the hinge fulcrum and inside the weather strip. It is intended to facilitate work and simplify waterproofing measures.

  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. In many cases, 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. In this way, because it is outside the weather strip, the grommet that is externally mounted on the spanning portion of the door harness must be attached to the through hole in a waterproof state, and labor is required for mounting the grommet into 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). is doing.
In Patent Document 1, as shown in FIGS. 7 and 8 (A) to (C), the door harness W / H that is bridged 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. 9, the open / close 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. 10 (A) to 10 (C). The door 1 can be opened and closed.
As described in Patent Documents 1 and 2, when the door harness is routed, the door harness W / H can be easily installed because it is routed more indoors than the weather strip 4 and it is not necessary to provide a waterproof structure. 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 the width direction position of the opening / closing member 4D attached to the panel of the vehicle body 2 are relative. When the door harness W / H follows the opening and closing of the door 1, the door harness W / H is not only two-dimensionally operated by expansion and contraction but is also subjected to bending and twisting, and performs a three-dimensional complicated movement.
There is a problem that the opening and closing cylinder members 4A to 4D of the above-mentioned patent publications 1 and 2 are not connected to the hinges H1 to H3 with respect to the movement of the three-dimensional door harness. There is room for.
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, the door 1 is also 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 a three-dimensional expansion / contraction of the door harness according to the opening / closing of the door is applied to the door harness that extends between the door and the vehicle body from the weather strip and the hinge to the indoor side. An object of the present invention is to provide a door harness routing structure including an exterior material that can follow the operation and does not expose the door harness 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 crossover region door harness penetrates through the inside of the guide protector composed of the first cylinder member to the fifth cylinder member to be sequentially connected,
One end of the first tube member of the guide protector is fixed to the door inner panel, and one end of the fifth tube member is fixed to a fixing member on the vehicle body side, and the second tube member is interposed between the first tube member and the fifth tube member. -Sequentially connect the fourth cylinder member in a freely rotatable manner,
An inclined end face that abuts each other at the inter-member connecting ends of the first to fifth cylindrical members is provided, and an inclined end face that protrudes from the inclined end face is provided with an annular concave or convex rotating joint. The other convex rotary joint part of the other convex rotary joint part is rotatably fitted and connected,
When the door is closed, the second to fourth cylinder members are rotated into a U-shape to absorb the extra length of the door harness penetrating the first to fifth cylinder parts, while the second to fourth cylinder members are opened when the door is opened. Provided is a door harness routing structure in which the fourth cylinder member rotates in a linear direction and extends the extra length of the door harness that penetrates the first to fifth cylinder parts. is doing.

As described above, in the present invention, it is not necessary to take a waterproof measure in order to route the door harness that spans between the vehicle body and the side door to the indoor side from the weather strip. As described above, by arranging the hinge and the weather strip on the indoor side, the door harness expands and contracts according to the door opening / closing operation, and is displaced in the vertical direction as described above, resulting in a complicated three-dimensional operation. . In the present invention, as described above, the door harness that is routed between the vehicle body and the side door is covered with the guide protector including the first to fifth cylinder members, and the connecting portions of the first to fifth cylinder members are The rotary joints are rotatably connected to each other, and the rotary joints have the opposing surfaces of the first to fifth cylindrical members as inclined surfaces so that they can rotate in a three-dimensional direction while abutting during rotation. That is, the first to fifth cylindrical members can be displaced in a linearly connected state when the door is opened, and can be displaced into a U-shaped bent state when the door is closed.
In this way, the guide protector at the crossing portion of the door harness can smoothly follow the complicated three-dimensional 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 not inserted into the guide protector and exposed to the outside when the door is opened or closed. Therefore, the appearance can be improved in terms of appearance.

  In addition, a separate joint member is not interposed between the first to fifth tubular members, and an annular concave rotating joint portion is formed on the inclined end surface of one tubular member to be brought into contact, and a convex rotation is performed on the other. Since the joint portion is provided and is rotatably connected and directly connected, the number of parts and the number of assembly steps can be reduced.

In the rotary joint portion between the first to fifth cylindrical members, it is preferable that an inclination angle of the inclined surfaces abutted with each other is 45 degrees.
As described above, when the inclination angle is 45 degrees, the inclined surfaces can be held in contact with each other no matter how the angle between the cylindrical members connected by the rotary joint portion changes.

A bracket is provided at one end of the first cylinder member on the door fixing side and fixed to the door inner panel, while a bracket is provided at one end of the fifth cylinder member on the vehicle body fixing side to be fixed to the vehicle body inner panel or the instrument panel. It is preferable.
As described above, the bracket provided at one end of the first cylinder member is fixed to the door inner panel, and the first cylinder member is pulled out from the door to the vehicle body side from the end on the door side between the door inner panel and the door trim. It is preferable.
On the other hand, as described above, the bracket provided at the tip of the fifth cylinder member is fixed to the interior surface side of the vehicle body inner panel, or is fixed to the side of the instrument panel in the proximity of the door facing surface on the vehicle body side. Preferably it is.
Thus, on both the door side and the vehicle body side, the door harness and the exterior first and fifth cylinder members are routed without penetrating the through holes formed in the door and the vehicle body. It is possible to improve the routing workability.

The first to fifth cylinder members are preferably resin molded products.
Furthermore, it is preferable that the said 1st-5th cylinder member has couple | bonded the said division body by tape winding, after inserting the division body divided into 2 along the axial direction, respectively, and the electric wire group of the said door harness. With this configuration, the door harness can be easily penetrated into the first to fifth cylindrical 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 the exterior is covered with the guide protector. Since the protector is configured to be deformable in three dimensions, the guide protector at the transition portion can follow the three-dimensional 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 not inserted into the guide protector and exposed to the outside when the door is opened or closed. Therefore, the appearance can be improved in terms of appearance.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 6.
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 cylinder member 11, a second cylinder member 12, a third cylinder member 13, a fourth cylinder member 14, and a fifth cylinder member 15. One end of the first cylinder member 11 of the guide protector 10 is fixed to the side surface of the instrument panel 25 on the vehicle body 2 side, and one end of the fifth cylinder member 15 is fixed to the door inner panel 21. The second to fourth cylinder members 14 are sequentially connected between the first and fifth cylinder members 15 so as to be freely rotatable, and between the door 1 and the vehicle body 2 of the door harness W / H in the cylinder members 11 to 15. It penetrates the crossing part.
In addition, although the 1st-5th cylinder member which comprises the guide protector 10 is made into the cylindrical shape, a square cylinder shape may be sufficient.

  Each of the first to fifth cylindrical members 11 to 15 is a resin molded product, divided into two in the axial direction and formed as a divided body (11a and 11b to 15a and 15b), and after passing through the door harness W / H Tape T is wound and integrated.

The first cylinder member 11 and the fifth cylinder member 15 have the same shape, and the first cylinder member 11 is fixed to the door inner panel 21 by providing a bracket 11c at one end on the door 1 fixing side, while the fifth cylinder member 15 is A bracket 15c is provided at one end of the vehicle body 2 fixed side and fixed to the door inner panel 21 or the instrument panel 25.
The other ends of the first cylinder member 11 and the fifth cylinder member 15 are connection ends between the members, and inclined end surfaces 11d and 15d having an inclination angle of 45 degrees are provided. The inclined end surfaces 11d and 15d have an annular concave rotary joint. Portions 11e and 15e are projected. The concave rotary joints 11e and 15e are provided with through holes 11f and 15f, and the door harness W / H is inserted through the through holes 11f and 15f. Further, annular grooves 11g and 15g are provided on the inner periphery of the concave rotary joints 11e and 15e.

The second cylinder member 12 and the fourth cylinder member 14 have the same shape, and the second and fourth cylinder members 14 are provided with inclined end faces 12c and 14c having an inclination angle of 45 degrees at both ends, and the inclined end faces. From 12c and 14c, convex rotary joint portions 12d and 14d are projected. The convex rotary joint portions 12d and 14d project large-diameter annular fitting portions 12f and 14f from small-diameter annular base portions 12e and 14e, and the annular fitting portions 12f and 14f are connected to the first cylindrical member 11 and The first cylinder member 11 or the fifth cylinder member 15 is connected by being fitted into the annular grooves 11 g and 15 g of the fifth cylinder member 15. Through holes 12g and 14g are provided in the annular fitting portions 12f and 14f and the annular base portions 12e and 14e, and the door harness W / H is inserted therethrough.
In addition, you may make the inclination direction of the inclination end surfaces 12c and 14c differ according to the wiring direction of the door harness W / H.

  The third cylinder member 13 is shorter than the second and fourth cylinder members 14 in the axial direction, and is provided with inclined end faces 13c having an inclination angle of 45 degrees and a 90-degree inclination direction at both ends. . From each inclined end face 13c, a concave rotary joint portion 13d having the same configuration as the concave rotary joint portions 11e and 15e described above is projected. The concave rotating joint 13d is provided with a through hole 13e, and the door harness W / H is inserted through the through hole 13e. An annular groove 13f is provided on the inner periphery of the concave rotary joint 13d.

The first cylinder member 11 and the second cylinder member 12 are aligned with the inclined directions of the inclined end surfaces 11d and 12c, and the first cylinder member 11 is divided into the divided bodies 11a and 11b. An annular groove 11g of the concave rotation joint portion 11e of the first tubular member 11 is fitted to the annular fitting portion 12f of the rotation joint portion 12d to form a rotation coupling portion R1.
Similarly, the fifth cylinder member 15 and the fourth cylinder member 14 are arranged in a state where the inclined end surfaces 15d and 14c are aligned, and the fifth cylinder member 15 is divided into the divided bodies 15a and 15b. The annular groove 15g of the concave rotary joint portion 15e of the fifth cylindrical member 11 is fitted to the annular fitting portion 14f of the fourteen convex rotary joint portions 14d to form the rotary connecting portion R4.

The third cylindrical member 13, the second cylindrical member 12, and the fourth cylindrical member 14 are aligned with the inclined directions of the inclined end surfaces 13c, 12c and 14c, 12c, and the third cylindrical member 13 and the fourth cylindrical member 14 are divided into a divided body 13a, In the state divided into 13b, 14a and 14b, the annular groove 13f of the concave rotary joint portion 13d at one end of the third cylindrical member 13 is fitted to the annular fitting portion 12f of the convex rotary joint portion 12d of the second cylindrical member 12. In this way, they are connected in a rotatable manner to form a rotary connecting portion R2 and a rotary connecting portion R3.
By providing the rotation connecting portions R1 to R4, both ends of the second to fourth cylindrical members 12 to 14 are rotatably supported.

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.
3A and FIG. 1 show a state when the door 1 is opened, and the second to fourth cylindrical members 14 abut the inclined end surfaces 12c, 13c, 14c with each other, and the second to fourth cylindrical members 12 are in contact with each other. ~ 14 is linear. In this state, the door harness W / H penetrating the first and second rotating cylinder portions 11 and 12 is in an extended state, and follows the open state of the door 1.

  On the other hand, when the door 1 is rotated from the door open position shown in FIG. 3 (A) to the door closed position shown in FIG. 3 (B), the fifth cylinder member 15 fixed to the door inner panel 21 on the door side, The connected fourth cylinder member 14 rotates at the rotation connection portion R4, and the second cylinder member 12 connected to the first cylinder member 11 fixed to the instrument panel 25 on the vehicle body 2 side rotates at the rotation connection portion R1, Furthermore, the 2nd-4th cylinder members 12-14 rotate by rotation connection part R2, R3, and become U shape, and absorb the surplus length part of the door harness W / H which generate | occur | produces at the time of a door closing.

And since the 2nd-4th cylinder members 12-14 are made into U shape, not only bend the door harness W / H in the left-right direction between the door 1 and the vehicle body 2, but absorb the surplus length part, The vertical displacement of the door harness W / H can be followed, and the three-dimensional operation of the door harness W / H can be followed.
That is, the rotation connecting portions R1 and R4 of the first cylinder member 11 and the second cylinder member 12, the fourth cylinder member 14 and the fifth cylinder member 15, the second cylinder member 12, the third cylinder member 13, and the third cylinder member 13. And the fourth tubular member 14 are rotatably connected at four locations of the rotation connecting portions R2 and R3, and the door harness W / H penetrates while bending in a horizontal direction → downward → lateral direction → upward → upward direction. Since the left and right direction displacement portions of the four rotation connecting portions R1 to R4 are formed by the vertical connecting portions, the vertical direction is also displaced, and the guide protector 10 is displaced three-dimensionally. The door harness W / H penetrating through 10 can be displaced in three dimensions.

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.
Also, 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 is also displaced in the vertical direction, resulting in a complicated three-dimensional operation. However, since the guide protector 10 can also be displaced three-dimensionally, it is possible to follow the movement of the door harness W / H according to the opening and closing of the door 1.
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.

It is a perspective view at the time of a door opening showing an embodiment of the present invention. It is a perspective view at the time of door closing. (A) is a side view which shows the state of the guide protector at the time of door opening, (B) is a side view which shows the state of the guide protector at the time of door closing. (A) It is a perspective view which shows a 1st cylinder member and a 5th cylinder member, (B) is the sectional view on the AA line of (A). (A) It is a perspective view which shows a 2nd cylinder member and a 4th cylinder member, (B) is the BB sectional drawing of (A). (A) It is a perspective view which shows a 3rd cylinder member, (B) is CC sectional view taken on the line of (A). (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 another prior art example. (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 11-15 1st cylinder member-5th cylinder member 12d, 14d Convex rotation joint part 11e, 15e, 13e Concave rotation joint part R1-R4 Rotation connection 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 crossover region door harness penetrates through the inside of the guide protector composed of the first cylinder member to the fifth cylinder member to be sequentially connected,
One end of the first tube member of the guide protector is fixed to the door inner panel, and one end of the fifth tube member is fixed to a fixing member on the vehicle body side, and the second tube member is interposed between the first tube member and the fifth tube member. -Sequentially connect the fourth cylinder member in a freely rotatable manner,
An inclined end face that abuts each other at the inter-member connecting ends of the first to fifth cylindrical members is provided, and an inclined end face that protrudes from the inclined end face is provided with an annular concave or convex rotating joint. The other convex rotary joint part of the other convex rotary joint part is rotatably fitted and connected,
When the door is closed, the second to fourth cylinder members are rotated into a U-shape to absorb the extra length of the door harness penetrating the first to fifth cylinder parts, while the second to fourth cylinder members are opened when the door is opened. An arrangement structure of a door harness, wherein the fourth tubular member rotates in a linear direction and extends a surplus portion of the door harness penetrating the first to fifth tubular portions.   2. The door harness routing structure according to claim 1, wherein an inclination angle of the inclined surfaces brought into contact with each other at the rotary joint portion between the first to fifth cylindrical members is 45 degrees.   A bracket is provided at one end of the first cylinder member on the door fixing side and fixed to the door inner panel, while a bracket is provided at one end of the fifth cylinder member on the vehicle body fixing side to be fixed to the vehicle body inner panel or the instrument panel. The wiring structure of the door harness of Claim 1 or Claim 2.   The door harness routing structure according to any one of claims 1 to 3, wherein the first to fifth cylindrical members are formed of a resin molded product.   5. The door according to claim 4, wherein each of the first to fifth members is divided into two parts along the axial direction, and the divided parts are joined by tape winding after inserting the electric wire group of the door harness. Harness wiring structure.

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