JP3465619B2 - Wire harness support structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness installed between a vehicle body and a door, and more particularly to a support structure for a wire harness which is installed between a vehicle body and a slide door and can be swung.

[0002]

2. Description of the Related Art Recently, a sliding door of a wagon type vehicle or the like is provided with a power window or the like for automatically raising and lowering a window glass, and a vehicle body and a sliding door are provided for supplying electric power or a signal to the power window. A wire harness is installed between them. This kind of wire harness runs between the vehicle body and the slide door and is supported by a strong support member that follows the movement of the slide door.

As shown in FIG. 3, in the slide door 1, a guide roller 12 at the tip of an arm 11 provided at the front end rolls along a lower slide rail 21 provided at step 2 at the lower edge of the door opening of the vehicle body. Then, it is guided to open and close from the closed position where the door opening is flush with the outer surface of the vehicle body to the open position where the door opening is opened by moving backward along the outer surface of the vehicle body and along the outer surface of the vehicle body (Fig. Indicates an open state).

On the inner surface of the slide door 1, there is a slider 14 movable along a guide rail 13 extending in the front-rear direction.
Is provided, and the slider 14 and the vehicle body are connected by a support member 3A. The support member 3A is formed by caulking and connecting the round terminals 32 to both ends of a metal cable which is strong and can be elastically bent and deformed.
Also, it is rotatably connected to a bracket 22 provided in step 2 of the vehicle body. When the sliding door 1 is opened / closed, the support member 3A pivots as the door 1 moves, and the slider 14 moves back and forth to follow the sliding movement of the door 1. The wire harness 4A drawn out from the vehicle body side along the support member 3A and the slider 14 are connected to electrically connect the vehicle body side and the slide door 1, and the support member 3A supports the wire harness 4A. There is.

As shown in FIG. 4, a wire harness 4A is formed by covering a plurality of electric wires 40 with a tube 44 of synthetic resin. As a simple means for supporting the wire harness 4A on a supporting member 3A, FIG. The adhesive tape 7 is wound around and integrally supported as shown in FIG. However, since the adhesive strength of the adhesive tape 7 is weakened due to deterioration over time, the adhesive tape 7 shown in FIG.
The wire harness 4A and the support member 3A are integrally supported by using the belt clamp 8 having a strong tightening force shown in (B). However, with the belt clamp 8, it is difficult to tighten with a constant tightening force at each support portion, and there is a risk of over-tightening at some parts.
As shown in FIG. 2, the wire harness 4A and the support member 3A are supported by using the ring-shaped clamp 9 having a constant tightening force. The ring-shaped clamp 9 has a substantially C-shaped cross section, and locking means 91 capable of locking each other at opposite ends.
And to form a ring by locking both ends,
The inside has circular clamp parts 92 and 93 for individually gripping the support member 3A and the wire harness 4A, and the support member 3A and the wire harness 4A are respectively held by the clamp parts 92 and 93.
Support side by side.

[0006]

By the way, when the sliding door 1 is opened and closed, the movement locus of the end portion of the sliding door 1 and the turning locus of the supporting member 3A do not coincide with each other, and the supporting member 3A slides. It is curved and deformed in accordance with the movement locus of No. 1 to absorb the difference in the movement loci of both. However, in the conventional support structure using the adhesive tape 7, the belt clamp 8, and the ring-shaped clamp 9, the support member 3A and the wire harness 4A are arranged side by side, and these are simply tightened from the surroundings. At the time of deformation, the supporting position of the supporting member 3A and the wire harness 4A is displaced or the supporting angle is displaced, so that the wire harness 4
A is wound around the support member 3A or is loose. In particular, if the wire harness 4A is wound around the support member 3A, excessive tension is applied to the wire harness 4A, which is not preferable. Therefore, the present invention has been made to achieve a wire harness supporting structure that prevents the wire harness from winding and loosening, stably supports the wire harness, and does not apply excessive tension to the wire harness. Is.

[0007]

DISCLOSURE OF THE INVENTION The present invention is directed to a slide door in which a wire harness that bridges between a vehicle body of an automobile and a slide door to supply electric power to the slide door is installed between the vehicle body and the slide door. Wire harness support structure in which the wire harnesses are juxtaposed along a curve-shaped deformable cable-like support member that swivels with the movement of the slide door when the doors are opened and closed, and the wire harnesses are supported by the support members by a plurality of clamps. In the above, a plurality of locations around the support member are provided with clamp mounting members which are caulked and fixed to the support member and have a square caulking section, while the wire harness is covered with a corrugated corrugated protector, and the clamp is A receiving portion and a lid portion connected to one side end of the receiving portion via an integral hinge,
Further, the other side end of the receiving portion and the lid portion is provided with a locking claw on one side, and a claw receiver is provided on the other side so that they can be locked to each other. A rectangular first clamp portion surrounding the outer periphery of the clamp mounting member;
A round second clamp portion is formed to surround the outer periphery of the protector, and a protrusion that fits in the valley portion of the protector in the circumferential direction is formed on the inner surface of the second clamp portion to form the first clamp portion. The clamp attachment member and the wire harness are sandwiched between the clamp portion and the second clamp portion, respectively (claim 1).

As the supporting member, the supporting member having the terminals for connecting to the vehicle body and the slide door caulked and fixed to both ends of the metal stranded wire is used, and the clamp mounting portion of the terminal constitutes the clamp mounting member. At the same time, the clamp attachment member is provided at an intermediate position of the support member, in which a short piece-shaped metal tube through which the support member penetrates is caulked and fixed (claim 2).

According to the present invention, since the clamp mounting member provided on the support member has a square cross section and is clamped by the rectangular first clamp portion of the clamp, the clamp and the support member do not rotate relative to each other. Moreover, since the valley portion of the protector of the wire harness is sandwiched by the protrusion of the second clamp portion of the clamp, the clamp and the wire harness do not move relative to each other in the longitudinal direction of the wire harness, and the wire harness supporting member is prevented from moving around. It is possible to prevent winding and loosening due to displacement of the wire harness.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 3, the sliding door 1 is substantially the same as the conventional structure. A support member 3 is installed between a slider 14 provided on the inner surface of the slide door 1 and movable back and forth and a rear end of a step 2 which forms a lower edge of a door opening of the vehicle body. In addition, the support member 3 from the vehicle body side
Pull out the wire harness 4 along the slider 14
The vehicle body side and the slide door 1 are electrically connected to each other. The wire harness 4 is supported on the support member 3 by the clamps 5 at a plurality of positions.

As shown in FIGS. 1 (A) and 1 (B), the supporting member 3 is composed of a strong stranded wire 30 in which a plurality of thin metal wires are twisted together, and the supporting member 3 is elastically curved. It can be transformed. A clamp attachment member 31 is provided substantially at the center of the support member 3. The clamp attachment member 31 is composed of a short cylindrical metal tube, and is fixed by caulking around the stranded wire 30 in a state where the stranded wire 30 is inserted. The crimping is performed by crimping the middle portion of the metal pipe with a crimping tool, and the outer peripheral shape of the cross section of the crimping portion is quadrangular.

Round terminals 3 are provided on both ends of the supporting member 3, respectively.
2 is provided. The round terminal 32 is an integrally formed metal body,
The cylindrical portion 31a and the ring portion 33 are provided at the tip of the cylindrical portion 31a. In the round terminal 32, the end of the stranded wire 30 is inserted into the cylindrical portion 31a, and the cylindrical portion 31a is caulked and fixed to the stranded wire 30. The caulking is the clamp mounting member 31
In the same manner as described above, the cylindrical portion 31a is crimped into a quadrangular cross section.
At both ends of the support member 3, the cylindrical portions 31a of the round terminals 32, which are crimped and deformed into a rectangular cross section, form clamp mounting members.

The support member 3 rotatably pivotally supports the ring portion 33 of the one round terminal 32 on the slider 14 of the slide door 1, and the ring portion 33 of the other round terminal 32 of the step 2 of the vehicle body. It is rotatably supported by the bracket 22 and is rotatably installed between the vehicle body and the slide door 1 (FIG. 3).

As shown in FIGS. 1 and 2, the wire harness 4 has a plurality of electric wires 40 bundled together and covered with a corrugated protector 41. The protector 41 is made of a synthetic resin and has a bellows structure in which a large number of narrow crests 42 and troughs 43 are alternately continuous at an equal pitch, and thus the wire harness 4 is easily bent and deformed.

The clamp 5 is an integrally molded body made of synthetic resin, and comprises a receiving portion 51 and a lid portion 53 connected to one end of the receiving portion 51 by a thin integral hinge 52. The receiving portion 51 and the lid portion 53 are substantially symmetrical with respect to the integral hinge 52, and the clamp 5 has the integral hinge 5
It is folded back at 2 and the receiving portion 51 and the lid portion 53 are overlapped.

A groove 54 having a substantially U-shaped cross section that opens upward is formed at the other end of the receiving portion 51, and a locking claw 541 that projects inward is provided at the upper end of the outer wall of the groove 54. . On the other hand, a locking piece 55 that fits in the groove 54 is provided at the other end of the lid portion 53, and a locking claw 551 that projects outward is formed at the tip of the locking piece 55. Accordingly, the clamp 5 can be locked by overlapping the receiving portion 51 and the lid portion 53 and engaging the locking claws 541 and 551.

On the opposing inner surfaces of the receiving portion 51 and the lid portion 53 of the clamp 5, concave portions 56a and 56b having a U-shaped cross section are formed at corresponding positions near the integral hinge 52, and the receiving portion 51 and the lid portion 53 are formed. When overlapping the
a, 56b together with the clamp mounting member 31 of the support member 3,
A first clamp portion 56 having a quadrangular cross-section that tightly fits around the outer periphery of 31a is configured. Further, on the other end side of the receiving portion 51 and the lid portion 53, concave portions 57a and 57b having a substantially semicircular cross section are formed on the inner surfaces facing each other, and the receiving portion 51 and the lid portion 5 are formed.
3 and the concave portions 57a and 57b face each other to form a second clamp portion 57 having a substantially circular cross section and surrounding the outer circumference of the protector 41. Each concave portion 57 of the second clamp portion 57
a and 57b have a narrow width extending in the circumferential direction on the inner surface of the protector 4
A plurality of protrusions 58 that are tightly fitted in the valley portion 43 of No. 1 are provided.

With the clamp 5 opened, the clamp 5 receives the caulked fixing portion of the clamp mounting members 31, 31a provided on the support member 3 in the recess 56a of the receiving portion 51, and receives the recess 57a.
Is arranged so as to receive the wire harness 4 covered with the protector 41, and the locking piece 55 of the lid 53 is pushed into the groove 54 of the receiving part 51 to engage the locking claws 541 and 551 to clamp the clamp 5. close. As a result, the caulked fixing portions of the clamp attachment members 31 and 31a are sandwiched by the first clamp portion 56 of the clamp 5, and the valley portion 43 of the protector 41 of the wire harness 4 is clamped by the second clamp portion 5 of the clamp 5.
It is sandwiched by the protrusions 58 of 7.

When the slide door 1 is opened and closed, the support member 3 and the wire harness 4 supported by the support member 3 pivot around the vehicle body side as the slide door 1 opens and closes, and the slide door 1 moves. It is curved and deformed according to the trajectory.

According to the present embodiment, since the clamp 5 has the first clamp portion 56 having a square shape, the crimp fixing portions of the clamp attachment members 31 and 31a of the support member 3 having a quadrangular cross section are sandwiched between the clamp 5 and the support. The support angles of the member 3 and the wire harness 4 do not change. Further, in the clamp 5, the protrusion 58 of the second clamp portion 57 has the protector 4 of the wire harness 4.
Since the valley portion 43 of No. 1 is sandwiched, the support member 3 and the wire harness 4 do not move relative to each other in the longitudinal direction. Therefore, when the sliding door 1 is opened and closed, even if the support member 3 is bent and deformed, the wire harness 4 bends following the support member 3, and the wire harness 4 is wound around the support member 3 or hangs. There is no.

The first clamp portion 56 of the clamp 5 is also provided.
Since both the caulking and fixing portions of the clamp attachment members 31 and 31a of the support member 3 are formed to have a quadrangular cross section, they can be prevented from rotating relative to each other without being completely fitted tightly.
Further, since the protrusion 58 of the second clamp portion 57 of the clamp 5 fits into the valley portion 43 of the protector 41, the peaks 42 at the front and rear of the valley portion 43 prevent the clamp 5 and Mutual movement of the protector 41 is prevented. Therefore, the clamp 5 has a degree of freedom in design, and the clamp 5 does not excessively tighten the wire harness 4. Further, the support member 3 is a clamp mounting member 31a.
Since the caulking and fixing part of the round terminal 32 is used, the minimum number of parts is required.

[0022]

According to the present invention, the wire harness that is routed along the supporting member that is installed between the vehicle body and the sliding door and that is swung and curved and deformed is clamped so that the supporting position and the supporting angle do not deviate from the supporting member. Since the wire harness is supported by using, it is possible to prevent the wire harness from winding and loosening and to stably support the wire harness. Also,
Since excessive tension is not applied to the wire harness and excessive tightening is not performed, the durability of the wire harness can be improved.

[Brief description of drawings]

1A and 1B show a supporting structure of a wire harness of the present invention, FIG. 1A is a plan view thereof, and FIG. 1B is FIG. 1A.
FIG. 6 is a cross-sectional view taken along the line IB-IB in FIG.

FIG. 2 is a view of a wire harness support structure of the present invention.
It is sectional drawing in the position which follows the II-II line of (B).

FIG. 3 is a schematic diagram showing wiring of a wire harness between a vehicle body and a sliding door to which the present invention is applied.

4 (A), (B) and (C) are perspective views of essential parts showing a conventional support member and a support structure for a wire harness.

[Explanation of symbols]

1 sliding door 2 car body (step) 3 Support members 30 strands 31, 31a Clamp mounting member 32 terminals 4 wire harness 41 Corrugated protector 43 Tanibe 5 clamps 51 Receiver 52 Integral hinge 53 Lid 54 Claw receiver (groove) 55 Locking claw 56 First clamp part 57 Second clamp part 58 Protrusion

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields investigated (Int.Cl. ⁷ , DB name) B60R 16/02 620 H02G 3/04 H02G 3/38

Claims (2)

(57) [Claims] 1. A wire harness that bridges between a vehicle body of an automobile and a slide door to supply electric power to the slide door is installed between the vehicle body and the slide door to move the slide door when the slide door is opened and closed. In a wire harness support structure in which the wire harnesses are arranged side by side along a curve-deformable cable-shaped support member that swivels with the support members, and the wire harness is supported by the support members by a plurality of clamps, around the support member. Clamp fixing members which are fixed to the supporting member by caulking and whose caulking section is quadrangular are provided at a plurality of positions, while the wire harness is covered with a corrugated corrugated protector, and the clamp includes a receiving portion and the receiving portion. A lid connected to one side end of the lid via an integral hinge; One side is provided with a locking claw, and the other side is provided with a claw receiver so that they can be locked to each other. On the inner surfaces of the receiving part and the lid part facing each other, a rectangular first clamp part surrounding the outer periphery of the clamp mounting member. And a round-shaped second clamp portion that surrounds the outer periphery of the protector is formed, and a protrusion that fits in the valley portion of the protector in the circumferential direction is formed on the inner surface of the second clamp portion. A support structure for a wire harness, wherein the clamp attachment member and the wire harness are sandwiched between the first clamp portion and the second clamp portion, respectively. 2. As the supporting member, the supporting member in which terminals for connecting to a vehicle body and a slide door are caulked and fixed to both ends of a metal stranded wire is used, and the clamp attaching member is fixed at the caulking fixing portion of the terminal. 2. The support structure for a wire harness according to claim 1, wherein the clamp attachment member is provided at an intermediate position of the support member, the clamp attachment member being formed by caulking and fixing a short piece of metal pipe through which the support member penetrates.