JP3225841B2 - Wire harness wiring structure in the door hinge part of the car - Google Patents

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 A door hinge is connected to a vehicle body side from the door side to open / close a vehicle body side and a door side of an automobile, 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.

When the wire harness is routed at the hinge fulcrum position as described above, the hinge H of the vehicle body side C and the door D is located substantially at the center of the end face 1a of the door panel 1, as shown in FIGS. To be installed, the door harness W / H
It is necessary to take out the door through the inside of the door panel 1 and through the through hole 1b formed in the end surface 1a to the outside of the door.
There was a problem that it took time and effort to pass through b.

[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. 10 and 11, 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.
The wire harness W / H is spirally wound inside and is 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.

The wiring harness W / H is shown in FIG.
As shown in (B), when passing 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, as shown in FIG.
When a portion W of / H enters the concave portion 4a of the bellows portion of the duct 4, the duct 4 cannot be contracted. In this state, FIG.
When the door D is closed as shown in (B), an excessive force may be applied to the duct 4 and the wire harness W / H between the door panel 1 and the side cover 3.

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

Since the bellows-shaped duct 4 is exposed to the indoor side, there is a possibility that the bellows-shaped duct 4 is deformed by an external force.
And the above problem is likely to occur. In addition, there is also a problem that the appearance is poor because the vehicle is exposed to the passenger side and is in the field of view of the occupant.

When the door is opened and closed, an operation force for expanding and contracting the bellows-shaped duct 4 is required in addition to the force for opening and closing the door, 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 wiring harness having both a twist absorbing function and a telescopic function at a position indoors from a hinge fulcrum and inside a weather strip. It is an object of the present invention to facilitate work and simplify waterproofing measures.

[0013]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a wiring harness in a door hinge portion of an automobile, in which a wiring harness is connected from a weather strip to a mounting position of a hinge connecting a vehicle body and a door. A Z-shaped guide member comprising an upper and lower horizontal portion and an intermediate inclined portion, a part of the wire harness is attached along the guide member, and the guide member is fitted into a recess provided on an end surface of the door panel; The above-mentioned guide member has its upper and lower horizontal portions hardened, and its tip is fixed to the door and the vehicle body, while the middle inclined portion is twistable and elastic, and according to the opening and closing operation of the door, The intermediate inclined portion changes the inclination angle in accordance with the movement of the upper and lower horizontal portions of the guide member, and can stretch and contract in the horizontal direction while being twisted, and can be elastically restored. Provides a wire harness structure in the door hinge portion of a motor vehicle, characterized in that a configuration for stretching the ear harness horizontally.

As described above, the upper and lower horizontal parts of the guide member are hardened, while the intermediate inclined part is twistable and elastic so that the intermediate inclined part can be moved by the intermediate inclined part. Is changed, it is possible to follow while twisting, and the elastic return is possible. When the door is opened,
When the upper and lower horizontal parts are pulled in directions away from each other, the intermediate inclined part is deformed while reducing its inclination angle, and can be deformed until it becomes substantially linear with the upper and lower horizontal parts. Thereby,
The wire harness can be extended in the horizontal direction according to the opening operation of the door. In addition, the intermediate inclined portion can be twisted together with the wire harness during the extension process. Therefore, the expansion and contraction function and the twist required when the door is opened can be given to the wire harness, and the wire harness can follow the door opening operation. On the other hand, when the door is closed, on the contrary, the elastic intermediate inclined portion is elastically restored while the twist is returned from the horizontal direction to the vertical direction, and the upper and lower horizontal portions are brought close to each other, so that the wire harness can be contracted in the horizontal direction. As described above, the guide member extends while being twisted following the opening and closing of the door, and contracts while returning torsion, so that the wire harness attached to the guide member can also follow the opening and closing of the door. Furthermore, since it is Z-shaped, the vertical height of the fixed position between the door side and the vehicle body side can be arbitrarily adjusted.

The guide member has a tubular shape through which the wire harness passes, or a flat plate shape which fixes the wire harness with a tape.

When the wire harness is passed through the guide member having a cylindrical shape, the wire harness can be protected and waterproof. Alternatively, when the guide member is formed in a narrow plate shape and the wire harness is fixed by tape winding, the wire harness can be easily attached to the guide member. In any case, any configuration is possible as long as the wire harness can follow the movement of the guide member.

The guide member is integrally formed of rubber or an elastomer. The upper and lower horizontal portions are thick and hard, while the intermediate inclined portion is thin and soft.

When the upper and lower horizontal portions are hard and rigid as described above, the upper and lower horizontal portions can be reliably moved in the horizontal direction.
Along with this vertical and horizontal movement, the intermediate inclined part connecting the upper and lower horizontal parts can be displaced from the vertical direction to the horizontal direction to reliably extend in the horizontal direction, while displacing from the horizontal direction to the vertical direction. Can be reliably shrunk in the horizontal direction. In addition, since the intermediate inclined portion can also generate torsion during the displacement in the vertical and horizontal directions, the wire harness can smoothly follow the opening and closing operation of the door.

The guide member has an upper horizontal portion, a lower horizontal portion, and an intermediate inclined portion, which are separate from each other. The upper and lower horizontal portions are formed of a rigid body, while the intermediate inclined portion is formed of an elastic body.
Further, the upper and lower horizontal portions may be connected by an intermediate inclined portion. That is, since the upper and lower horizontal portions do not need torsion and elasticity, the upper and lower horizontal portions need not be elastic, and only the intermediate inclined portion need be elastic. With such separate members, each member can be easily formed.

It is preferable that the restoring force of the guide member to return to the Z-shape is set so as to return to the original shape faster than the door closing speed. When the return speed of the guide member and the wire harness is increased, it is possible to reliably prevent the guide member from being caught between the door and the vehicle body.

[0021]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 1 to 4 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 wired at a door hinge portion between the door D and the vehicle body C. ing. The above door harness D
A front side portion arranged in the door hinge portion of the W / H passes through a rectangular tube-shaped guide tube 10 as shown in FIGS. 2 and 3, and the guide tube 10 allows the door harness D · W / H to be inserted. Guide tube 10 having a small diameter having a hollow portion
It expands and contracts according to the opening and closing of the door D and twists,
The inside door harness D / W / H can follow the door opening / closing operation.

The guide cylinder 10 is integrally formed of an elastic material, for example, a hard rubber, an elastomer, or a resin having elasticity (such as polycarbonate). The guide tube 10 has a Z-shape as shown, and includes an upper horizontal portion 10a and a lower horizontal portion 1a.
0b, an intermediate inclined portion 10c, a door fixing portion 10d provided at the tip of the upper horizontal portion 10a, and a vehicle body fixing portion 10e provided at the lower horizontal portion 10b.

The upper and lower horizontal portions 10a and 10b have a large thickness to be hard and have rigidity, while the intermediate inclined portion 10c connecting the upper and lower horizontal portions 10a and 10b has a reduced thickness and is soft. , So that it can be easily expanded and contracted and twisted. Further, the intermediate inclined portion 10
c and the upper and lower horizontal portions 10a and 10b refract the thin middle inclined portion 10c to form these refraction portions 10c.
-1, 10c-2 are linear upper and lower horizontal portions 10a, 10b.
It is connected to. Therefore, when the upper and lower horizontal portions 10a and 10b move away from or close to each other in the horizontal direction, the bending portion 1
Oc-1 and 10c-2 are deformed so as to break, so that the intermediate inclined portion 10c changes the inclination angle α so that the intermediate inclined portion 10c can be displaced from the vertical direction to the horizontal direction and vice versa.

The door fixing portion 10d provided at the end of the upper horizontal portion 10a is composed of a fixing piece projecting up and down, and a screw hole 10f is provided at each end to fix the door to the screw. On the other hand, the vehicle body fixing portion 10e provided at the distal end of the lower horizontal portion 10b is formed of a thick annular portion provided at the distal end of the square tube, and a locking claw 10g is provided at the distal end of the vehicle body fixing portion 10e.
The locking claw 1 is tightly fitted into the through hole 11 provided in the vehicle body C.
0 g is used for fixing.

A weather strip 2 is attached to the door panel 1 of the door D from the hinge connection portion H to the vehicle body C on the indoor side, and a door panel end surface 1a on the indoor side further from the mounting position of the weather strip 2 has a door panel. The recess 1 into which the guide tube 10 is fitted over the inner surface 1g of the inner plate
f is formed.

As shown in FIG. 1, the door harness D · W / H passing through the guide tube 10 at the front end is routed along the inner surface 1g of the inner panel of the door panel 1, and the door panel end surface 1a at the front end.
The guide tube 10 is fitted into the recess 1f on the side, and in this state, the door fixing portion 10e is screwed into the inner surface of the door inner plate 1g.
It is fixed with. On the other hand, the vehicle body fixing portion 10d extends to the vehicle body C, is pushed into the through hole 11, and is locked and fixed to the vehicle body by the locking claw 10g.

As described above, the concave portion 1f formed on the indoor side of the fulcrum position of the hinge H and the weather strip 2 as described above.
Since the guide tube 10 is accommodated in the door panel, the fixing piece 10c is fixed to the inner surface 1g of the inner panel of the door panel, and the through hole 11 is provided on the vehicle body C side from the hinge H on the indoor side. The harness D · W / H is located on the indoor side from the hinge H. Therefore, the door harness D · W / H is
When the door is opened, it needs to be extended while twisting according to the opening and closing angle of the door. Similarly, when the door is closed, it is necessary to shrink while twisting back.

Door harness D / W at the door hinge
/ H is formed of a material having elasticity, is Z-shaped, and has a middle inclined portion 10.
As shown in FIG. 4, when the door is opened, if the upper and lower horizontal portions 10a and 10b are pulled away from each other, the intermediate inclined portion 10c is tilted from the vertical direction to the horizontal direction as shown in FIG. And become substantially linear, and extend in the horizontal direction. On the other hand, when the tension is released, as shown in FIG. 1 and FIG. 2, the original Z-shape is restored and contracted in the horizontal direction. And the intermediate inclined portion 10
c can be displaced while being twisted in the process of the displacement or while the torsion returns.

Utilizing the above-described properties of the guide cylinder 10,
The door harness D / W / H inside the guide tube 10 is also expanded and contracted by following the door opening / closing operation, so that it expands while being twisted and contracts while being twisted back. In addition,
The contraction speed is set to be faster than the closing speed of the door D.

That is, when the door D is closed, as shown in FIG.
a in the recess 1f. When the door D is opened from this state as shown in FIG. 4, the guide cylinder 10 and the inner door harness D · W / H are twisted and the vehicle body C as shown in FIG.
It extends substantially straight to the side and follows the opening operation of the door D. When the door D is closed from the open state, the guide cylinder 10 has a restoring force, and returns to the original shape before being pushed by the door D or while being pushed by the door D, and the guide cylinder 10 and the door harness D · W / H shrinks, recess 1f
Fits in.

As described above, the guide tube 10 has both the function of absorbing torsion and the function of expanding and contracting. Therefore, the door harness D / W / H inserted into the guide tube 10 follows the opening and closing operation of the door. It can be stretched while twisting and contracted while twisting back.

In the first embodiment, the door harness DW
Although a guide tube is attached to the front end of / H and extends to the vehicle body C, a guide tube may be attached to the tip of the instrument panel harness on the vehicle body C side and the instrument panel harness may extend to the door side.

FIG. 5 shows a second embodiment in which a thin guide plate 20 of the same shape is provided in place of the guide tube, and a wire harness is wound around the guide plate 20 with a tape 21. As a matter of course, a body fixing portion 20d and a door fixing portion 10e are provided at the tips of the upper and lower horizontal portions 20a and 20b connected by the intermediate inclined portion 20c of the guide plate 20. Other configurations and operations are the same as those of the first embodiment, and therefore, description thereof will be omitted.

FIG. 6 shows a third embodiment, in which a guide cylinder 30 is provided.
The upper and lower horizontal portions 30a and 30b are formed of resin, the intermediate inclined portion 30c is formed of rubber, and the upper and lower refraction portions 30c-1 and 30c-2 of the intermediate inclined portion 30c are connected to the upper and lower horizontal portions 30a and 3c.
It is fixed to the end of Ob with a screw 31. The tips of the upper and lower horizontal portions 30a and 30b form a vehicle body fixing portion 30d and a door fixing portion 30e as in the first embodiment, and the vehicle body fixing portion 30d is also fixed to the vehicle body C with screws similarly to the door fixing portion. I am trying to do it.

Similarly to the guide tube 10 of the first embodiment, the guide tube 30 has upper and lower horizontal portions 30a, 30 made of a rigid body.
b moves horizontally apart and close in accordance with the door opening / closing operation, and the rubber intermediate inclined portion 30c falls down while twisting or rises up while twisting back according to the movement of the upper and lower horizontal portions 30a and 30b. The wire harness passed inside is stretched while twisting, and contracted while twisting returns.

In each of the embodiments, the guide member formed of a Z-shaped guide cylinder or a guide plate is fixed to the door side in the vertical direction, but the Z shape may be fixed in the horizontal direction. In such a case, it is preferable to attach to the vehicle body side where the attachment space is large.

In the first to third embodiments,
Although a guide member is attached between the front end surface of the door and the end surface of the vehicle body facing the door, as shown in the fourth embodiment in FIG.
On the door side, a recess 41a is provided in the trim 41 on the indoor side, the guide tube 10 is fitted, and the door fixing portion 10d is fixed. On the other hand, the vehicle body fixing portion 10e is fixed to the inside of the instrument panel 40 through an opening 40b provided in the door side end surface 40a of the instrument panel 40. This fourth
Since the guide tube 10 of the embodiment operates in the same manner as the first embodiment, the description is omitted.

In the fourth embodiment, since the wiring harness can be routed through the guide tube 10 between the trim 41 and the instrument panel 40 on the indoor side, it is not necessary to pass the wire harness through the door and the vehicle body. Easy.

[0039]

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 opening and closing the door, the wire harness is required to have both the expansion and contraction function and the twisting function.However, since a guide member having both these functions is provided and the wire harness is attached to the guide member, when the door is opened and closed, The wire harness can be smoothly followed while expanding and contracting and twisting.

Further, since the guide member is formed in a small-diameter cylindrical shape enough to insert the wire harness or a thin plate shape only to hold the wire harness, it can be accommodated in a small space between the door and the vehicle body. It is not exposed to the indoor side and does not impair the appearance. Furthermore, since the guide member is small and lightweight, the door opening / closing operation force does not increase by attaching the guide member, and the door opening / closing does not become heavy.

Furthermore, since the wire harness is routed inside the hinge position and inside the weather strip, it is not necessary to take waterproof measures against the wire harness, and the conventionally used grommets and the like are not required. Can be eliminated. Furthermore, the wire harness can be routed on the inner surface side of the inner panel of the tor panel, and can be routed from the inner surface side of the door to the front end surface of the door. Therefore, it is possible to eliminate the work of arranging the wire harness to the inside of the door panel and taking out the wire harness from the through hole provided in the front end surface of the door panel, which is conventionally required. This can be much easier than in comparison.

[Brief description of the drawings]

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

FIG. 2 is a front view of a guide cylinder used in the first embodiment.

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a perspective view illustrating the operation of the first embodiment.

FIG. 5A is a front view showing a state in which a wire harness is attached to a guide plate according to a second embodiment, and FIG. 5B is a partially schematic perspective view.

FIG. 6 is a front view of a guide cylinder according to a third embodiment.

FIG. 7 is a perspective view of a fourth embodiment.

FIG. 8 is an exploded perspective view of a door hinge part showing a conventional example.

FIG. 9 is a plan view showing a positional relationship between a hinge position and a weather strip.

FIG. 10 is a perspective view of another conventional example.

FIG. 11 is an enlarged sectional view of a main part of the conventional example of FIG.

12A and 12B are schematic diagrams showing a normal state of the conventional example of FIG.

13A and 13B are schematic diagrams showing an abnormal state of the conventional example of FIG.

[Explanation of symbols]

 C Vehicle body D Door D / W / H Door harness H Hinge position 1 Door panel 1a End face 1f Concave section 2 Weather strip 10 Guide tube 10a Upper horizontal portion 10b Lower horizontal portion 10c Middle inclined portion 10d Vehicle fixing portion 10e Door fixing portion

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tetsuya Takimoto 1-114, Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Systems, Ltd. (72) Inventor Shinichi Suehiro 1-114, Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Systems Incorporated (56) References Hikaru 1-131227 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60J 5/04 B60R 16/02 620 B60R 16/02 623

Claims (4)

(57) [Claims] In a door hinge portion of an automobile, a vehicle body and
Hinge for connecting the door and the weatherst
For wiring harnesses on the indoor side from the lip
And a Z-shaped guide member comprising an upper and lower horizontal portion and an intermediate inclined portion.
AndOne of the wire harnesses along the guide member
Part and attach the guide member to the door panel end face.
Into the recess provided in the The above-mentioned guide member has its upper and lower horizontal portions hardened,
While the end is fixed to the door and the car body, the middle inclined part is
Torsion and elasticity,  The upper and lower horizontal parts of the guide member
The middle slope changes the tilt angle when movingAnd twisted
It can be stretched and stretched in the horizontal direction and can be elastically restored.
hand,A configuration for expanding and contracting the wire harness in a horizontal direction;
The door hinge of the vehicle
Ear harness wiring structure. 2. The guide member penetrates a wire harness.
Secure the tubular shape or wire harness
2. The wiring harness wiring structure in a door hinge portion of an automobile according to claim 1, wherein the wiring harness wiring structure has a flat plate shape . 3. The guide member is made of rubber or elastomer.
The upper and lower horizontal parts are thick and hard.
On the other hand, the middle slope is thin and soft.
The wiring harness wiring structure in the door hinge part of the motor vehicle according to claim 1 or 2 . 4. The guide member includes an upper horizontal portion and a lower horizontal portion.
And the middle slope are separate parts, and the upper and lower horizontal parts are rigid.
While the intermediate slope is made of an elastic body,
The upper and lower horizontal portions are connected by an intermediate inclined portion.
A wire harness wiring structure in a door hinge part of an automobile according to claim 2 .