JPH10181471A - Wire harness arrangement structure in door hinge part of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrange a wire harness, being off from a hinge and a weather strip toward the passenger compartment. SOLUTION: A guide frame 10 having a small width triangular shape, has a draw-out port 10g opened at a position separate from an insertion port 10e of a wire harness, and the wire harness is secured to the insertion port 10e, and is then inserted in the guide frame 19. The wire harness is laid so that it detourgs toward a second lower apex in the guide frame 10 and is drawn out through the draw-out port 10g of the guide frame 10. The leading end of the wire harness led out from the draw-out port of the door frame 10 is extended to the other one which is either one of the door or the vehicle body so that the wire hardness is extended and retracted so as to follow the opening and closing of the door when the door is opened or closed. Further, the wire harness is wound on a rotary roller coupled which is with a spring and which provided in the guide frame 10, having a support shaft made at its opposite end faces into contact with opposite inner faces of the guide frame 10. Accordingly, the wire harness is pulled back by the restoring force of the spring when the door is closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring harness arranging structure in a door hinge portion of an automobile, and more particularly to a wiring harness arranging a wiring harness inside a weather strip on a room side from a hinge fulcrum. This facilitates simplification and simplification of waterproofing measures.

[0002]

2. Description of the Related Art In a door hinge portion which connects a vehicle body side and a door side of an automobile so as to be freely opened and closed, a door harness is routed from the door side to the vehicle body side, and an instrument panel harness (hereinafter referred to as an instrument panel) is provided on the vehicle body side. Harness), or the instrument panel harness is routed from the vehicle body side to the door side, and is connected to the door harness on the door side. Conventionally, the wire harness routed to this door hinge portion is routed at a position substantially the same as the hinge fulcrum position and changed in the vertical direction, and only twisting occurs in the wire harness with opening and closing of the door. Thus, the wire harness does not need to expand and contract, and the twist is absorbed by twisting the wire harness.

As described above, when the wire harness is routed at the hinge fulcrum position, the hinge H of the vehicle body side C and the door D is attached to substantially the center of the end surface 1a of the door panel 1, as shown in FIG. It is necessary to take out the door harness W / H to the outside of the door through the inside of the door panel 1 and through the through hole 1b formed in the end face 1a, and to route the wire harness into the inside of the door panel 1 and to work through the through hole 1b. There was a problem that took time and effort.

[0004] A weather strip 2 is attached to the door D for waterproofing. Since the weather strip 2 is attached to the indoor side of the hinge H, the wire harness W / H is also attached to the weather strip. 2
It is more outdoor. Therefore, the location where the wire harness W / H is routed cannot be waterproofed by the weather strip 2, so that a waterproof structure is required. Therefore, conventionally, it is necessary to attach the waterproof grommet G to the penetrating position on the door side and the vehicle body side, and also to provide a waterproof measure for the wire harness W / H, which increases the cost and increases the trouble. Was.

[0005] The above-mentioned problem can be solved by disposing the wire harness W / H on the indoor side of the weather strip 2, but in this case, the position of the hinge fulcrum and the wiring position of the wire harness W / H are required. Therefore, it is necessary to expand and contract the wire harness W / H when the door is opened and closed. That is,
The wire harness routed to the door hinge is required to have both the function of expanding and contracting and the function of absorbing torsion.

[0006] Japanese Unexamined Patent Publication No. 8-48 discloses a structure in which a wire harness is routed on the indoor side of the weather strip.
No. 146. That is, as shown in FIGS. 6 and 7, a bellows-shaped duct 4 for covering the air-conditioning duct is attached between the side cover 3 of the instrument panel and the door inner surface 1c opposed thereto, and a wire is provided inside the duct 4. The harness W / H is spirally wound and provided with a margin.

[0007]

However, in the above structure, since the bellows-like wire harness W / H is routed inside the bellows-like duct 4, the following problems occur. When the wire harness W / H passes through the center position inside the bellows-like duct, both the bellows-like duct 4 and the bellows-like wire harness W / H can expand and contract in a normal state. However, when a part W of the wire harness W / H enters the concave portion of the bellows portion of the duct 4, the duct 4 cannot be contracted. If the door is closed in this state, the duct 4 and the wire harness W / H may be damaged by the door panel and the side cover, and the electric wires may be disconnected.

When the bellows-shaped wire harness W / H expands and contracts, the wire harness W / H is not always restored to a constant shape. When the outer diameter of the wire harness becomes larger than the inner diameter of the bellows-shaped duct 4, the bellows-shaped duct becomes It is destroyed and cannot shrink.

Since the bellows-like duct 4 is exposed to the indoor side, it may be deformed by an external force.
The bellows-like wire harness W / H inside enters the concave portion of the duct 4, and the above problem is likely to occur.

When the door is opened and closed, in addition to the force for opening and closing the door, an operating force for expanding and contracting the bellows-shaped duct 4 is required, which causes a problem that the occupant feels that the opening and closing of the door is heavy.

The present invention solves the above-mentioned problems, and arranges and arranges a wire harness having both a twist absorbing function and a telescopic function at a position indoors from the hinge fulcrum and inside the weather strip. It is an object of the present invention to facilitate work and simplify waterproofing measures.

[0012]

In order to solve the above problems, according to the present invention, a wire harness routed between a vehicle body and a door is attached to a hinge mounting position connecting the vehicle body and the door. And a wiring strip arranged on the indoor side from the weather strip, wherein a substantially triangular thin guide frame is provided, a wire harness insertion port is provided at an upper vertex thereof, and a first lower portion located at one end of a horizontal lower side is provided. A wire harness outlet is provided at the apex, and the wire harness is fixed to the insertion opening and inserted into the guide frame. The wire harness is drawn out from the outlet through the second lower apex inside the guide frame. And one end of an elastic body is fixed to the second lower vertex of the guide frame, and a support shaft for rotatably supporting a rotating roller is fixed to the other end of the elastic body. Above both ends of shaft A wire harness is wound around the outer periphery of the rotating roller while slidingly contacting the inner surfaces on both sides of the guide frame, and the guide frame is fixed to one of the door and the vehicle body, and from the outlet of the guide frame. The leading end of the drawn wire harness is extended to the other of the door and the vehicle body, and the elastic body is moved in accordance with the opening operation of the door so that the elastic body is positioned at the midpoint of the side between the insertion opening and the outlet. The vehicle is characterized in that the wire harness is pulled back into the guide frame by the restoring force of the elastic body when the door is closed by expanding and contracting toward the door, and the wire harness can follow the door opening and closing operation. And a wire harness routing structure at the door hinge portion of the vehicle.

Since the space occupied by the guide frame is preferably as small as possible, the wire harness is slidably sandwiched between the door or vehicle body and the guide frame, and the width of the sliding portion is slightly smaller than the outer diameter of the wire harness. As a rule, the wire harness is prevented from overlapping inside the guide frame.

In the above configuration, the wire harness is drawn out of the guide frame when the door is opened and closed, so that the wire harness can be made to follow the door frame when the door is opened and closed by storing the wire harness in the guide frame from the insertion opening to the outlet, instead of being linear. When the door is closed, the extended wire harness is inserted into the guide frame from the outlet. In addition, the twist at the time of opening and closing the door can be followed by twisting of the wire harness itself pulled out from the guide frame. Further, the support shaft of the rotating roller is connected to the second lower apex portion of the guide frame by an elastic body, and both end surfaces of the support shaft are slidably abutted on the inner surfaces on both sides of the guide frame. By winding the harness, at the time of door closing operation, the restoring force of the elastic body acts in a direction to pull the wire harness back into the guide frame, and the wire harness is returned to the inside of the wire harness guide frame faster than the closing speed of the door. Can shrink.

Further, the elastic body is provided in a pair, and the wire harness wound around the rotating roller is sandwiched between the pair of elastic bodies. With this configuration, a uniform elastic force is applied to both ends of the support shaft of the rotating roller, and the rotating roller can be moved more smoothly within the guide frame. The elastic body is made of a spring or rubber (claim 3).

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIGS. 1 to 3 show a first embodiment, in which a door harness D · W / H is extended from a front end surface 1a of a door panel 1 to a vehicle body side, and is routed to a door hinge portion between the door D and the vehicle body C. ing. The front side of the door harness D / W / H, which is routed to the door hinge, passes through a guide frame 10 shown in FIGS. 2 and 3. FIG. 3 is a cross-sectional view taken along line P1-P2 in FIG.

The guide frame 10 is made of resin and has a substantially triangular shape. A thin peripheral wall 10b is provided on three sides of a triangular plate portion 10a, and an opposing surface of the plate portion 10a is open. A cylindrical portion 10d is protruded from an upper vertex of the guide frame 10 to be integrally formed, and an insertion port 10e for a wire harness is provided.
The first lower vertex located at one end of the horizontal lower side has a cylindrical portion 10
f is protruded and integrally formed, and a wire harness outlet 10g is provided. Further, both end surfaces of the support shaft 11a rotatably supporting the rotating roller 11 are connected to the inner surface of the guide frame 10 at a second lower vertex located at the other end of the horizontal lower side by a pair of springs S. The end surface of the support shaft 11a is slidably in contact with the plate portion 10a. By connecting with a pair of springs S, a uniform elastic force can be applied to both ends of the support shaft 11 a of the rotating roller 11.

The door harness D · W / H is provided with an insertion port 10e.
Through, and inserted into the space surrounded by the peripheral wall 10b and the plate portion 10a, and fitted along the peripheral wall 10b to the second lower vertex side,
It is detoured, fitted along the lower side 10m to the outlet 10g, and drawn out from the outlet 10g. At this time, the door harness D / W / H is wound around the outer periphery of the rotating roller 11 at the detour section. In addition, the insertion port 10e
In the part of, the tape 11 is wound around the door harness D · W / H and the outer peripheral surface of the cylindrical portion 10d to form the door harness D · W / H.
H is positioned and fixed. Further, by passing the door harness D · W / H in a substantially tightly fitted state through the cylindrical regulating cylinder 15 having both ends opened, the door harness D · W / H is pulled out of the outlet 1.
It is pulled out linearly from 0 g and is drawn in linearly, so that the expansion / contraction operability is enhanced.

The opening of the guide frame 10 to which the door harness D / W / H is attached is formed by the opening lid 1 having substantially the same shape as the plate 10a.
Close at 0c. At this time, the support shaft 11a of the rotating roller 11
Is slidably abutted on the opening lid 10c. That is, both end surfaces of the support shaft 11a of the rotating roller 11 are
0 is slidably in contact with the inner surfaces of both sides. As shown in FIG. 1, inside the concave portion 1f formed from the end surface 1a of the door panel 1 to the inner surface of the inner plate 1c, the opening lid 10c is vertically directed toward the concave bottom surface, and the outlet 10g is provided. It is mounted so as to face the vehicle body C side. A locking claw (not shown) for locking with a locking claw (not shown) provided on the opening lid 10c is provided on a bottom surface of the concave portion 1f. And fixed with one touch.

In this state, a space slightly larger than the outer diameter of the door harness D.W / H is formed between the plate portion 10a of the guide frame 10 and the bottom surface of the concave portion 1f.・ W / H slides freely, but is stored in a state where it cannot overlap.

The door harness D · W / H drawn out from the outlet 10g of the guide frame 10 extends toward the vehicle body C, and the rubber mounting member 13 attached to the tip of the door harness D · W / H is attached to the vehicle body C.
In the mounting hole 14. Rubber mounting member 1
3 may be a grommet conventionally used.

A weather strip 2 is attached to the door panel 1 of the door D from the hinge joint H to the vehicle body C on the indoor side, and a recess 1f in which the guide frame 10 is attached.
Is located further on the indoor side than the mounting position of the weather strip 2. Therefore, it is not necessary to take special waterproof measures for the door harness D / W / H to which the guide frame 10 is attached.

As shown in FIG. 1, a door harness D · W / H having a front end portion passed through a guide frame 10 is routed along the inner surface 1 g of the inner panel of the door panel 1.

As described above, the position of the fulcrum of the hinge H and the recess 1f formed closer to the room than the weather strip 2 are.
Since the guide frame 10 is fixed to the door harness D
When the door is opened, the W / H needs to be extended while twisting according to the opening and closing angle of the door. Similarly, at the time of the door closing operation, it is necessary to contract while returning the twist.

As shown in FIG. 2 (A), the door harness D / W / H is accommodated in the guide frame 10 with a margin so as to be detoured. As shown in the figure, the door harness D · W / H is pulled out from the outlet 10g and extends. At this time, both end surfaces of the support shaft 11a of the rotating roller 11 slide on the inner surfaces on both sides of the guide frame 10 against the spring S, and the rotating roller 11 rotates appropriately. When the rotation roller 11 rotates appropriately, the spring S is extended toward the intermediate point of the side 10h, which is the shortest distance. The twist required for the door opening operation can be absorbed by twisting the door harness D · W / H itself drawn out from the outlet 10g. Therefore, the door harness D · W / H can follow the door opening operation.

On the other hand, at the time of the door closing operation, the door harness D · W / H that is pulled out is interlocked with the door closing operation.
2G, it is pulled into the guide frame 10 and returns to the state of FIG. At this time, the restoring force of the spring S acts in a direction to draw the door harness D · W / H into the inside of the guide frame 10, so that the door harness D · W / H is lower than the door closing speed.
The retraction (shrinkage) speed of H is increased. Thus, the door harness D / W / H is prevented from being caught between the door and the vehicle body.

As described above, the guide frame 10 has the function of expanding and contracting the door harness D · W / H, while the door harness D · W / H is pulled out from the guide frame 10,
Since the drawn-out door harness itself can be twisted, the door harness D follows the opening and closing operation of the door.
・ W / H can be expanded while twisting, and can be shrunk while twisting returns. The rotating roller 1 connected to the second lower vertex of the guide frame 10 by a spring S
By winding the door harness D · W / H around 1,
During the door closing operation, the door can be returned to the inside of the guide frame 10 of the door harness D / W / H and contracted earlier than the closing speed of the door.

FIG. 4 shows a second embodiment. In the first embodiment, one end of a spring S is connected to the second frame of the guide frame 10.
While the lower vertex is fixed to the inner surface, the guide frame 10
One end of the spring S is fixed to the outer surface at the second lower vertex. In this case, a through hole (not shown) may be provided in the side 10m of the guide frame 10, and one end of the spring S may be fixed to the outer surface of the guide frame 10 through the through hole.

In the above embodiment, the guide frame 10 is provided on the door side. However, the guide frame 10 may be provided on the vehicle body side, or may be mounted on both the door side and the vehicle body side. The wire harness may be drawn out, and when the door is closed, the wire harness may be drawn into both guide frames.

Further, in the above embodiment, the spring S is used as the elastic body, but rubber may be used. Further, in the above embodiment, the portion of the second lower vertex of the guide frame 10 and the support shaft 11a of the rotating roller 11 are connected by the pair of springs S on the plate portion 10a side and the opening lid portion 10c side. The same effect can be obtained by connecting one elastic body to the side.

[0031]

As is apparent from the above description, in the wiring harness wiring structure in the door hinge portion of the automobile according to the present invention, the wiring harness is wired not at the same position as the hinge position but at the inside position on the indoor side. Therefore, when the door is opened and closed, the wire harness is required to have both the expansion and contraction function and the twist function. However, since these guide frames are provided and the wire harness is attached to the guide frame, the wire harness is expanded and contracted when the door is opened and closed. In addition, since the wire harness itself pulled out from the guide frame is twisted, it can be smoothly followed while expanding and contracting and twisting in conjunction with the opening and closing operation of the door.

Further, the support shaft of the rotary roller is connected to the second lower vertex portion of the guide frame by an elastic body, and both end surfaces of the support shaft are slidably abutted on the inner surfaces on both sides of the guide frame. By wrapping the wire harness, at the time of door closing operation, the speed of retracting (shrinking) the wire harness into the guide frame becomes faster than the closing speed of the door, so that the wire harness is caught between the door and the vehicle body. Can be prevented from being caught. In addition, by providing a pair of elastic bodies and sandwiching the wire harness wound around the rotating roller with the pair of elastic bodies, uniform elastic force is applied to both ends of the support shaft of the rotating roller, and the elastic body is provided in the guide frame. The rotating roller can be moved more smoothly.

Further, since the guide frame is formed in a thin and small frame shape or a thin box shape enough to insert a wire harness, it can be mounted in a small space between a door and / or a vehicle body. Moreover, by installing the trim after the installation, the trim is not exposed to the indoor side, and the appearance is not impaired. Furthermore, since the guide frame is small and lightweight, the mounting force of the door does not increase and the opening and closing of the door does not become heavy by attaching the guide frame.

Further, since the wire harness is routed inside the hinge position and inside the weather strip, there is no need to take waterproofing measures for the wire harness, and a conventionally used grommet or the like is used. Can be eliminated. Further, the wire harness can be routed on the inner side of the door panel, thereby eliminating the need for wiring the wire harness to the inside of the door panel, which is conventionally required, and taking out the wire harness from the through hole provided on the front surface of the door panel. Therefore, the work of arranging the wire harness on the door panel can be made much easier as compared with the related art.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a schematic diagram for explaining a guide frame according to the first embodiment.

FIG. 3 is a cross-sectional view taken along line P1-P2 in FIG.

FIG. 4 is a schematic diagram of a main part of a second embodiment of the present invention.

FIG. 5 is an exploded perspective view of a door hinge part showing a conventional example.

FIG. 6 is a perspective view of another conventional example.

FIG. 7 is an enlarged sectional view of a main part of the conventional example of FIG.

[Explanation of symbols]

 C Body D Door D / W / H Door harness H Hinge position 1 Door panel 2 Weather strip 10 Guide frame 10e Insertion opening 10g Outlet 11 Rotary roller 11a Spindle S Spring (elastic body)

Claims (3)

[Claims] A wire harness routed between a vehicle body and a door is routed indoors from a mounting position of a hinge connecting the vehicle body and a door and a weather strip, and has a substantially triangular thin shape. A width guide frame is provided, a wire harness insertion port is provided at an upper vertex thereof, and a wire harness outlet is provided at a first lower vertex located at one end of a horizontal lower side,
A wire harness is fixed to the insertion opening and inserted into the guide frame, and the wire harness is accommodated so as to be drawn out from the outlet through the second lower vertex side inside the guide frame, 2. Fix one end of the elastic body to the lower apex portion, fix a support shaft rotatably supporting the rotating roller to the other end of the elastic body, and attach both ends of the support shaft to both sides of the guide frame. A wire harness is wound around the outer periphery of the rotary roller while being slidably in contact with the inner surface, and the guide frame is fixed to one of the door and the vehicle body, and a wire pulled out from the outlet of the guide frame. The front end of the harness extends to either the door or the vehicle body, and the elastic body expands and contracts toward the middle point of the side between the insertion port and the outlet according to the opening operation of the door. To do A wire harness in a door hinge portion of an automobile, wherein the wire harness is pulled back into the guide frame by the restoring force of the elastic body when the door is closed, so that the wire harness can follow the door opening and closing operation. Routing structure. 2. The wiring harness wiring structure in a door hinge portion of an automobile according to claim 1, wherein a pair of said elastic bodies are provided so as to sandwich a wire harness wound around said rotary roller between said pair of elastic bodies. 3. The wiring harness wiring structure in a door hinge part of an automobile according to claim 1, wherein the elastic body is made of a spring or rubber.