JP2003320908A - Power supplying structure of sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To guarantee a smooth movement of a corrugated tube. <P>SOLUTION: A power supply case 4, used when the corrugated tube with a wire harness inserted therein is bridged from a vehicle body side to a sliding door side, has an opening 41 extending in the door sliding direction of the sliding door and having a substantially U-shaped cross section opening in the downward direction. Inside the power supply case 4, a guide wall 43 laid to keep a predetermined curving state of the corrugated tube pulled in from the opening 41 on a moving end of the sliding door is provided, the guide wall 43 positioned near the opening 41 and more to the back toward the inside of the power supply case 4 than a lower end 461 of a side wall of the power supply case 4 close to the vehicle body, and a side wall 46 is bent to cover an end part of the door sliding direction of the opening 41. <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 power supply structure for a slide door, and more particularly, to a power supply structure of a constant power supply type in which a power supply line is directly bridged from a vehicle body side to a slide door side. The present invention relates to an improvement of a power feeding structure that effectively prevents the interference of power.

[0002]

2. Description of the Related Art FIGS. 4 and 5 show an example of a constant power feeding type slide door power feeding structure. A rotary clamp 1 is provided on a step panel P1 (FIG. 5) on the vehicle body side, and a corrugated tube 3 having a wire harness 2 inserted therein is bridged to the slide door D side through the rotary clamp 1. The rotary clamp 1 includes an outer case 11 shown in FIG. 6 and an inner cylinder 12 rotatably supported in the outer case 11.
The flexible corrugated tube 3 having a well-known structure (FIG. 5) and having a bellows portion formed by a large number of irregularities.
The outer periphery of one end 31 of the inner cylinder 12 is held by the inner cylinder 12.

On the other hand, a power feeding case 4'is provided on the inner surface of the slide door D. The power feeding case 4'is a case body having a substantially U-shaped cross-section that opens downward and has a chevron shape in a front view (FIG. 4), and an opening 41 (FIG. 4) extending in the door sliding direction (left and right direction in FIG. 4) at the lower end. 5) is formed. The corrugated tube 3 that has passed through the rotary clamp 1 to the slide door D side is
As shown in FIG. 4, the corrugated tube 3 is drawn from one end side of the opening 41 into the power feeding case 4 ′ and extends inside thereof along the chevron top 42 of the power feeding case 4 ′ by the biasing force of the leaf spring 44. The other end 32 of the power supply case 4 '
The wire harness 2 fixed to the end portion of the sliding door D extends to each device in the slide door D.

When the sliding door D is opened from the closed position, the power feeding case 4'integrated with the door D moves to the right from the position shown in FIG. 4 and is opposed to the rotary clamp 1 as shown in FIG. Move to the side. Along with this, while the corrugated tube 3 is pulled out of the power feeding case 4 ′, the position where the corrugated tube 3 is pulled into the power feeding case 4 ′ moves from one end side to the other end side of the opening 41, and the leaf spring 44 is largely bent. The feeding case 4 ′ is positioned along the outer periphery of the guide wall 43 that is curved from the inside of the chevron-shaped top portion 42 and that is curved with a predetermined radius of curvature. During this time, the inner cylinder 12 of the rotary clamp 1 rotates about 180 degrees so as to eliminate the twist of the corrugated tube 3.

[0005]

By the way, in such a power feeding structure, the guide wall 43 is, as shown in FIG.
Both side walls 4 are provided so as to project from the wall surface of the side wall 45 of the power supply case 4'that is far from the vehicle body, and close the end of the opening 41 formed between the side wall 46 and the side wall 46 of the power supply case 4 '.
It extends to almost the same position as the lower ends 451 and 461 of 5, and 46. Therefore, the slide door D is opened, and along with this, the corrugated tube 3 is moved to the guide wall 43 as described above.
When the posture of the corrugated tube 3 is increased, the corrugated portion of the outer peripheral bellows of the corrugated tube 3 is caught on the top surface 43a (FIG. 9) of the guide wall 43 which is close to the lower end 461 of the side wall 46 when the tube 3 is moved, or the guide wall 43 is moved. End face 43b (Fig. 1
There is a problem that the smooth movement of the corrugated tube 3 due to the opening and closing of the slide door D is hindered by being caught in 0).

[0006] Therefore, the present invention solves such a problem, and an object of the present invention is to provide a power supply structure for a slide door that ensures smooth deformation of the corrugated tube.

[0007]

In order to achieve the above object, in the first aspect of the present invention, the power is supplied from the vehicle body side to the slide door (D) side through a power feeding case (4) provided in the slide door (D). In the power feeding structure of the slide door (D) in which the corrugated tube (3) into which the electric wire (2) is inserted is bridged, the power feeding case (4) has a substantially U-shaped cross section that opens downward, and the slide door (D). Has an opening (41) extending in the door sliding direction, and a corrugated tube (3) drawn from the opening (41) is provided at one moving end of the sliding door (D) in the power supply case (4). A guide wall (43) along which the guide wall (43) is provided so as to maintain a predetermined curved state, and the guide wall (43) is located near the opening (41), and the side wall of the power supply case (4) near the vehicle body. Bottom edge (4 1) than the power supply case (4)
The side wall (46) is bent backward so as to close the end portion of the opening (41) in the door sliding direction while being moved backward.

In the first aspect of the invention, the corrugated tube drawn into the power supply case through the opening always moves while being in contact with the lower end of the side wall below the guide wall as the slide door is opened and closed. Therefore, the unevenness of the outer peripheral bellows of the corrugated tube that is moved and deformed is not caught on the top surface or the end surface of the guide wall located above. This ensures smooth movement of the corrugated tube as the slide door is opened and closed.

In the second aspect of the present invention, the lower end of the side wall (461, 46)
3) is bent outward with a bending amount that cannot enter the outer peripheral groove (33) of the corrugated tube (3) drawn into the opening (41). In the second aspect of the present invention, since the lower end of the side wall does not enter and get caught in the outer circumferential groove of the corrugated tube when the corrugated tube is moved,
A smoother movement of the corrugated tube due to opening and closing of the sliding door is guaranteed.

The reference numerals in the parentheses indicate the correspondence with the concrete means described in the embodiments described later.

[0011]

1 is an exploded perspective view of an end portion of a power feeding case used in a slide door power feeding structure of the present invention. In FIG. 1, the power feeding case 4 has a substantially U-shaped cross section that opens downward as described above, and an opening 41 extending in the door slide direction is formed between the side walls 45 and 46 of the power feeding case 4. In the present embodiment, the guide wall 43 protruding from the wall surface of the side wall 45 on the side far from the vehicle body has the opening 4
It is formed at a position near 1 and above the lower end 451 of the side wall 45, and at a position retracted into the power feeding case 4. Therefore, the guide wall 43 is located at substantially the same position as the side wall lower end 451 and is located at the lower end 461 of the side wall 46 near the vehicle body.
However, as shown in FIG. 2, it is also retracted into the power supply case 4 above the lower end 461.

Further, the lower end 461 of the side wall 46 is curved outward of the power feeding case 4, and the curved amount of the corrugated tube 3 which is drawn into the power feeding box from the opening 41 while contacting the lower end 461 of the side wall. The size is such that the end of the lower end 461 does not enter the groove 33 of the outer peripheral bellows. The end surface 4 of the lower end 461 is
61a is rounded so that it can be reliably prevented from being caught. The side wall 46 in which the lower end 461 is curved in this way is bent toward the side wall 45 with the end portion 462 (FIG. 1) having the same cross-sectional shape. As shown in FIG. 3, the end portion 462 is in contact with the end surface 43b of the guide wall 43 positioned in the power feeding case 4, and the end portion lower end 463 formed in the same cross-sectional shape as the side wall lower end 461 is smaller than the guide wall 43. Is also located below and closes the end of the opening 41 of the power supply box 4 in the door slide direction.

In such a structure, the corrugated tube 3 drawn into the power feeding case 4 through the opening 41.
When the slide door D is opened / closed, it always comes into contact with the lower end 461 of the side wall or the lower end 463 of the end portion as shown in FIGS. 2 and 3 and moves. Therefore, the top surface 43a (FIG. 2) and the end surface 43b of the guide wall 43 located above
(FIG. 3) does not catch the unevenness of the outer peripheral bellows of the corrugated tube 3 which is deformed by movement. Further, the lower end 461 and the end lower end 463 do not enter the outer peripheral groove 33 of the corrugated tube 3 and are caught there when the corrugated tube 3 moves. In this way, the smooth movement of the corrugated tube 3 with the movement of the slide door D is guaranteed.

[0014]

As described above, according to the power feeding structure for the sliding door of the present invention, it is possible to ensure the smooth deformation of the corrugated tube.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an end portion of a power feeding case showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of an end portion of the power feeding case showing the embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view of an end portion of the power feeding case showing the embodiment of the present invention.

FIG. 4 is a front view of a power feeding structure showing a conventional example.

5 is a cross-sectional view taken along the line VV of FIG.

FIG. 6 is a perspective view of a conventional rotary clamp viewed from the rear.

FIG. 7 is a front view of a power feeding structure showing a conventional example.

FIG. 8 is an exploded perspective view of an end portion of a conventional power feeding case.

FIG. 9 is a front view of an end portion of a conventional power feeding case.

FIG. 10 is a vertical cross-sectional view of an end portion of a conventional power feeding case.

[Explanation of symbols]

2 ... Wire harness, 3 ... Corrugated tube, 33 ...
Outer peripheral groove, 4 ... Power feeding case, 41 ... Opening port, 43 ... Guide wall, 46 ... Side wall, 461 ... Lower end, 462 ... End portion, 463
… Bottom edge, D… Sliding door.

Claims (2)

[Claims] 1. A power supply structure for a slide door in which a corrugated tube having a power supply line inserted into the slide door is passed from a vehicle body side through a power supply case provided in the slide door, and the power supply case is opened downward. The power supply case has an opening having a substantially U-shaped cross section and extending in the door slide direction of the slide door.
A guide wall is provided along which the corrugated tube drawn from the opening is arranged to keep a predetermined curved state at one moving end of the slide door, and the guide wall is located near the opening and the power feeding case is provided. Of the slide door characterized by being positioned so as to be retracted into the power supply case from the lower end of the side wall on the side closer to the vehicle body, and the side wall being bent so as to block the door slide direction end of the opening. Power supply structure. 2. The power supply structure for a slide door according to claim 1, wherein the lower end of the side wall is curved outward by an amount of curvature that cannot enter the outer peripheral groove of the corrugated tube drawn into the opening.