JP2003341446A - Sliding door feeding harness fixture and feeding structure using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the durability of a wire harness by reducing the torsion and deflection thereof during opening/closing a sliding door. <P>SOLUTION: This sliding door feeding harness fixture 14 comprises a spherical turning member 18 for holding the wire harness 11 for feeding the sliding door and a case 17 having a spherical storage space 19 in which a turning member is turnably held. The case has a curved harness guide wall 21 along which the wire harness 11 is led out. A feeding structure comprises the harness fixture 14 provided on a vehicle body and a harness protector provided on the sliding door, wherein the wire harness 11 is led out of the harness fixture 14 into the sliding door while being curvingly housed through a laterally long opening portion of the harness protector into the harness protector. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harness for sliding door power supply, which absorbs twists and bends of a wire harness that is installed in a sliding door of an automobile such as a one-box car for constant power supply when the sliding door is opened and closed. The present invention relates to a fixture and a power feeding structure using the fixture.

[0002]

2. Description of the Related Art In a sliding door of an automobile, in order to supply a power supply current or a signal current from the vehicle body side to auxiliary equipment such as electric components on the sliding door side, for example, as shown in FIG. Wire 70 from the vehicle body to the slide door 71, and accommodated in a curved state inside a protector 72 made of synthetic resin provided in the slide door 71, and a wire harness accompanying opening and closing of the slide door 71. A power supply device has been proposed that accommodates expansion and contraction of 70.

Examples of the auxiliary equipment on the sliding door side include a power window motor, a door lock unit, a switch unit and an automatic door opening / closing unit.

The protector 72 has a wide wall portion 73 on the front and back sides, a peripheral wall 74 continuous to the upper and lower sides, and a slit-shaped long opening portion 75 in the front and rear portions on the lower portion. Protector 7
2 is fixed to a metal door panel 76, and is covered with a synthetic resin door trim 77. The door trim 77 is fixed to the door panel 76 with bolts and clips 78. The wire harness 70 is routed from the protector 72 to the vehicle body side, and is fixed to the vehicle body side with a harness fixture (not shown).

Assuming that the right side of FIG. 3 is the front side of the vehicle, when the sliding door 71 is slid forward to be fully closed, the wire harness 70 is pulled rearward and extended as shown by the chain line, and the sliding door 71 When the wire harness 70 is slid rearward to be fully opened, the wire harness 70 is pulled forward as shown by a solid line, and is curved and contracted in the protector 72 to have a small diameter. The position of the harness fixture does not change,
The wire harness 70 is swung back and forth around the harness fixing tool as the slide door 71 is opened and closed.

[0006]

However, in the above-mentioned conventional power feeding structure, when the wire harness swings back and forth due to the opening and closing of the slide door, the wire harness is provided between the protector and the harness fixing tool. However, there is a problem that the durability of the wire harness is deteriorated by receiving the force in the twisting direction and the bending direction.

In view of the above points, the present invention provides durability of the wire harness even when a force in the twisting or bending direction is repeatedly applied to the wire harness when the wire harness swings due to opening and closing of the sliding door. It is an object of the present invention to provide a harness fixing tool for power feeding of a slide door and a power feeding structure using the same, which does not decrease.

[0008]

In order to achieve the above-mentioned object, a harness fixing tool for feeding a sliding door according to a first aspect of the present invention is a spherical wire holding a wire harness for feeding power to a sliding door. It is characterized by comprising a moving member and a case having a spherical accommodating space for rotatably holding the rotating member.

With the above structure, by fixing the case to, for example, the vehicle body, the wire harness is routed from the harness fixing device to the sliding door and is supported by the rotating member of the harness fixing device so as to be rotatable in the circumferential direction of the harness. In addition, it is flexibly supported vertically and horizontally. Therefore, when the wire harness swings and twists and bends as the slide door opens and closes, the twist of the wire harness is absorbed by the rotation of the rotating member in the harness circumferential direction, and the twisting of the rotating member in the harness bending direction is prevented. The bending of the wire harness is absorbed by the rotation. As a result, an unreasonable twisting force or bending force does not act on the wire harness, and the durability of the wire harness is improved.

According to a second aspect of the present invention, there is provided a harness fixing tool for supplying power to a sliding door according to the first aspect of the present invention, wherein the harness fixing tool for supplying power to the sliding door has a curved harness guide wall for guiding the wire harness. Is provided in the case.

With the above construction, when the wire harness swings integrally with the rotating member when the slide door is opened and closed, the wire harness is bent along the harness guide wall of the case, so that the wire harness is prevented from being bent. The durability of the wire harness is further improved.

According to a third aspect of the present invention, there is provided a power supply structure using the slide door power supply harness fixing tool, wherein the slide door power supply harness fixing tool according to the first or second aspect is provided in a vehicle body, and the slide door harness protector is provided. Is provided, and the wire harness led out from the harness fixture is led out into the slide door while being accommodated in a curved shape in the harness protector from a laterally long opening of the harness protector.

With the above structure, the wire harness is routed from the harness fixing tool to the slide door, and is rotatably supported in the harness circumferential direction by the rotating member of the harness fixing tool and flexibly supported vertically and horizontally. . When the wire harness swings and twists and bends as the slide door opens and closes, the twisting of the wire harness is absorbed by the turning of the turning member in the harness circumferential direction, and the turning member turns in the harness bending direction. The bending of the wire harness is absorbed by. As a result, an unreasonable twisting force or bending force does not act on the wire harness, and the durability of the wire harness is improved. Further, when the wire harness swings integrally with the rotating member when the sliding door is opened and closed, the wire harness is bent along the harness guide wall of the case to prevent the wire harness from being bent, and the durability of the wire harness is improved. Further improve.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of a power supply structure (power supply device) using a harness fixing tool for sliding door power supply according to the present invention, and FIG. 2 similarly shows the harness fixing tool.

In FIG. 1, a harness protector (hereinafter referred to as a protector) 1 is composed of a protector body 2 and a cover (not shown) made of synthetic resin, and has a substantially semi-circular portion 3 and a gradual height. And the extension part 4 of the latter half of which the thickness is reduced.

The protector body 2 is provided with a vertical substrate portion 5 and a curved peripheral wall 6 formed around the lower portion of the substrate portion 5, and an annular regulating wall 7 is provided on the front half side of the substrate portion 5. However, the harness lead-out path 8 having an upward curved shape is provided outside the front end of the peripheral wall 6. At the lower end of the protector body 2, a horizontally elongated opening 9 for leading out the harness is provided. The cover (not shown) is locked and fixed to the protector body 2 by a locking means (not shown) such as a flexible locking claw or an engaging hole.

A metal leaf spring 10 which is an elastic member tangentially upward along the annular restriction wall 7 of the protector body 2.
Is provided. A wire harness 11 is routed along the leaf spring 10, and the wire harness 11 is biased upward by the leaf spring 10 and accommodated in a curved shape inside the protector 1. A cover (not shown) is already attached in a state where the wire harness 11 is accommodated.

One of the wire harnesses 11 is led out from the lead-out passage 8 on the front side and the other is led out from the opening 9 on the lower side while being covered with the corrugated tube 12 made of synthetic resin. One of the wire harnesses 11 is connected to a wire harness (not shown) on the slide door side by a connector 13
And connected to various auxiliary equipment inside the slide door.
The other side of the wire harness 11 is routed to the vehicle body side (power source side) and is supported by a harness fixture 14 so as to be rotatable in the circumferential direction of the vehicle body, while being connected to a wire harness (not shown) on the vehicle body side by a connector 15. Connected by.

The wire harness 11 includes a plurality of electric wires 16
(FIG. 2) and a corrugated tube 12 made of synthetic resin that houses each electric wire 16. The corrugated tube 12 has circumferential grooves 12a and ridges 12b alternately arranged in the longitudinal direction. The corrugated tube 12 protects the electric wires 16 from interference with the outside while increasing the flexibility of the wire harness 11.

As shown in FIG. 2, the harness fixing device (holding device) 14
Is a case 17 (17a and 17b) made of synthetic resin, and a spherical rotating member 18 rotatably arranged in the case 17.
It consists of and. The wire harness 1 is attached to the rotating member 18.
1 is fixed, and the spherical rotating member 18 is supported by the case 17 so as to be rotatable in two-dimensional directions in the vertical and horizontal directions. This allows
The wire harness 11 is supported so as to be rotatable in the circumferential direction and swingably in the vertical and horizontal directions.

The case 17 is divided into an upper half and a lower half by a lower receiving portion 17a and an upper cover 17b.
The cover 17b and the cover 17b have a hemispherical accommodation space 1 inside.
9, the accommodation space 19 continues to the front and rear harness outlets 20. A curved harness guide wall 21 is extended and formed in a substantially trumpet shape at the peripheral edge of the front outlet port 20.
The receiving portion 17a is provided with a fixing bracket 22,
The bracket 22 is fixed to the floor (not shown) of the vehicle body by inserting a bolt or the like into the hole 33.

At the same time when the receiving portion 17a and the cover 17b are joined, a locking means (not shown) such as a locking projection and a locking frame portion.
And the upper and lower hemispherical storage spaces 19 are combined to form a spherical storage space, and the upper and lower harness guide walls 21 having a substantially U-shaped vertical cross section are combined to have a rectangular frame-shaped cross section. Is configured. Spherical accommodation space (substituting 19)
A spherical rotating member 18 is accommodated in the 360 ° slidable direction.

The spherical rotating member 18 is formed so as to be divided into two parts, and one hemispherical member 18a and the other hemispherical member 1 are formed.
A groove portion 23 for holding the harness is formed on 8b, and a ridge (not shown) that engages with the concave groove 12a of the corrugated tube 11 is formed in each groove portion 23. Each member 18
The a and 18b are locked in a spherically united state by a locking means (not shown) such as a flexible locking claw and an engaging step portion.

Each groove 23 is formed in a semicircular cross section when it corresponds to the corrugated tube 11 having a circular cross section, and in a semielliptical shape having a horizontally long cross section when it corresponds to a flat corrugated tube (not shown) having an oval cross section. It is formed. The oval corrugated tube is fixed immovably in the circumferential direction and the longitudinal direction by engaging the groove of the corrugated tube with the ridge of the rotating member (18). The circular corrugated tube 11 has, for example, the concave groove 1
By setting the outer diameter of 2a to be slightly larger than the inner diameter of the ridge (not shown) of the rotating member 18, it is fixed immovably in the circumferential and longitudinal directions. The plurality of electric wires 16 are held in the corrugated tube 12 so as to be rotatable in the circumferential direction with a certain degree of freedom.

If a corrugated tube or the like is used as the protective tube instead of the corrugated tube 12, the wire harness (11) can be obtained by sandwiching the protective tube with a pair of hemispherical members 18a and 18b. Are fixed to the rotating member 18. The same is true when a plurality of electric wires 16 roughly wound with vinyl tape are used as they are as the wire harness (11) without using the protective tube.

With the wire harness held in the spherical rotating member 18 as shown in FIG. 2, the rotating member 18 is slidably accommodated between the upper and lower receiving portions 17a and the cover 17b, that is, in the case 17. . The spherical rotating member 18 is the case 1
It is rotatable in the harness circumferential direction in 7 and is also rotatable in the up, down, left, right and diagonal directions (harness swinging or bending direction).

In FIG. 1, the protector 1 is attached to a slide door (not shown), and when the slide door is slid forward and closed, the wire harness 11 moves backward along the peripheral wall 6 of the protector 1 as shown by a solid line. While being pulled, it swings along the lower opening 9 and is led out from the rear end side of the opening 9 to the vehicle body side.

At this time, the wire harness 11 is rotated in the circumferential direction by the harness fixing tool 14 to absorb the twist, and the wire harness 11 is freely swung in the up, down, left, right and diagonal directions with the harness fixing tool 14 as a fulcrum. Then, the bending force of the wire harness 11 is absorbed. That is, the spherical rotating member 18 in FIG. 2 rotates in the harness circumferential direction inside the case 17 and at the same time freely rotates in the harness bending direction, so that excessive bending force applied to the wire harness 11 is absorbed and eliminated. To be done.

When the sliding door is opened, the wire harness 11 is moved forward along the opening 9 as shown by a chain line, and is reduced in diameter in the protector 1 from the front end side of the opening 9 toward the vehicle body. Be derived to. Wire harness 11
The leaf spring 10 also largely bends downward in accordance with the reduction of the diameter, and bends to a small diameter along the annular restriction wall 7.

At this time, a twisting force in the direction opposite to that when the wire harness 11 is closed is applied, and this twisting force is also absorbed by the spherical turning member 18 turning in the opposite direction, and at the same time, the wire harness. The bending force of 11 is also a spherical rotating member 1
8 is freely rotated in the bending direction of the harness to be reliably absorbed. As a result, the durability of the wire harness 11 against repeated opening and closing of the slide door is improved, and the wire harness 11 is prevented from being damaged over time.

In addition, the harness guide wall 21 of the case 17
Since the wire harness 11 is smoothly curved along this, the excessive bending force and bending applied to the wire harness 11 are also prevented, and the wire harness 11 is prevented from being deformed and the durability is improved.

When the protector 1 is provided on the vehicle body side instead of the slide door side, the harness fixing tool 1
4 is provided not on the vehicle body side but on the slide door side. At this time, the harness fixture 14 moves back and forth integrally with the slide door, and the wire harness 11 is swung and bent accordingly, but the spherical turning member 18 moves in the swinging and bending directions in the same manner as described above. The wire harness 11 is freely rotated to absorb the twist and bending of the wire harness 11.

[0033]

As described above, according to the first aspect of the invention, when the wire harness is twisted and bent while swinging as the slide door is opened and closed, the rotating member rotates in the harness circumferential direction. The twist of the wire harness is absorbed by and the bending of the wire harness is absorbed by the turning of the turning member in the harness bending direction, so that the wire harness is not subjected to an unreasonable twisting force or bending force, and the durability of the wire harness is improved. Is improved. As a result, the reliability of power supply of the power supply current and the signal current to each auxiliary device on the sliding door side is improved.

According to the second aspect of the present invention, when the wire harness swings integrally with the rotating member when the slide door is opened and closed, the wire harness is bent along the harness guide wall of the case. The bending of the harness is prevented, and the durability of the wire harness is further improved. As a result, the reliability of power supply of the power supply current and the signal current to the respective auxiliary devices on the sliding door side is further enhanced.

According to the third aspect of the invention, similarly to the above, when the wire harness is twisted and bent while swinging as the slide door is opened and closed, the wire is rotated by the rotation of the rotating member in the harness circumferential direction. The twist of the harness is absorbed, and the bending of the wire harness is absorbed by the turning of the turning member in the harness bending direction. As a result, the wire harness is not subjected to an unreasonable twisting force or bending force, and the durability of the wire harness is improved. improves. Further, when the wire harness swings integrally with the rotating member when the sliding door is opened and closed, the wire harness is bent along the harness guide wall of the case to prevent the wire harness from being bent, and the durability of the wire harness is improved. Further improve. As a result, the reliability of power supply of the power supply current and the signal current to each auxiliary device on the sliding door side is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a power feeding structure using a harness fixing tool for sliding door power feeding according to the present invention.

FIG. 2 is also an exploded perspective view showing an embodiment of a harness fixing tool for supplying power to a sliding door.

FIG. 3 is a perspective view showing one form of an existing power supply device for a slide door.

[Explanation of symbols]

1 Harness protector 9 openings 11 wire harness 14 Harness fixture 17 cases 18 Rotating member 19 accommodation space 21 harness guide wall

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H02G 3/38 H02G 11/00 X 11/00 3/26 G 3/28 F (72) Inventor Hiroaki Arai 2464-48 Washizu, Kosai City, Shizuoka Prefecture Yazaki Parts Stock Company (72) Inventor Katsuji Suzuura 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation (72) Inventor Hiroshi Sanada Taura Port Town, Yokosuka City, Kanagawa Prefecture Kanto Automobile Industry Co., Ltd. (72) Inventor Masahiro Nakajima 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Automobile Co., Ltd. F Term (reference) 3H023 AA04 AB01 AC21 AC64 AD31 AD54 AE06 5G357 DA06 DB03 DC12 DD01 DD05 DD10 DG04 5G363 AA07 BA02 BA07 BB01 DA13 DC03

Claims (3)

[Claims] 1. A spherical rotating member for holding a wire harness for supplying power to a sliding door, and a case having a spherical accommodation space for rotatably holding the rotating member. Harness fixture for sliding door power supply. 2. The harness fixing tool for sliding door power supply according to claim 1, wherein a curved harness guide wall for guiding the wire harness along the path is provided on the case. 3. A harness fixing tool for sliding door power supply according to claim 1 or 2 is provided on a vehicle body, a harness protector is provided on the sliding door, and the wire harness derived from the harness fixing tool is provided on the harness protector. A power supply structure using a harness fixing tool for power supply of a slide door, wherein the harness locker is housed in a curved shape in the harness protector through a laterally long opening and led out into the slide door.