JP2000264136A - Feeding structure for automobile slide door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To feed a current at all the time from a vehicular body side to a slide door side by a simple structure. SOLUTION: A slider 56 is engaged with a guide portion 51 in a slide door opening/closing direction of a slide door 1, and a wire harness 54 of the door side is fixed on the slider 56, and a bending portion 75 is formed between the slider 56 and the vehicular body side on the wire harness 54. A united pair of link arms 52, 53 is connected to the slider 56 at one end, and pivotally supported by the slide door 1 side at the other end, thereby arranging the wire harness 54 from the link arms 52, 53 to the slider 56. The guide portion 51 can be made from a reinforcing material of the slide door 1. A circular arc- shaped second guide portion can be provided on the slide door 1 side, and a slide engaging portion of a joint 59 between the pair of the link arms 52, 53 can be engaged with the second guide portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness on a slide door side and a vehicle body side when a slide door is opened and closed by slidably engaging a slider to which a wire harness on a slide door side is fixed with a guide portion. The present invention relates to a power supply structure for a sliding door for an automobile, in which a connection position of the sliding door is always constant.

[0002]

2. Description of the Related Art Auxiliary equipment such as a power window motor, a door lock unit, and a speaker inside a sliding door, which are found in one-box cars and some passenger cars, are connected via a door wire harness to a wire harness on a vehicle body side (power supply side). Conventionally, various means have been taken to connect to the server.

FIG. 22 shows an example of the construction disclosed in Japanese Utility Model Application Laid-Open No. 4-1245.
No. 55 shows a conventional power supply structure of a sliding door for an automobile, in which each auxiliary device 102 in the sliding door 101 is connected to a wire harness 104 via a controller 103, and a terminal of the wire harness 104 is It is connected to one contact point 105 at the front end of the door. Body 1
The other contact 107 is provided on the 06 side, and the contact 107 is connected to a battery 109 via a wire harness 108. The contact 107 on the vehicle body side is connected to a contact 105 on the sliding door side via a movable contact (not shown) for dust and water resistance.
Connected to.

However, in the above structure, power is supplied only when the slide door 101 is closed,
However, there is a disadvantage that the power window is not opened and closed, and auxiliary devices such as speakers are not operated in a state where the device is slightly opened. In addition, both contacts 10 are connected via movable contacts for dustproof and waterproof.
Because of the so-called double contact for connecting 5,107, there is a concern that the contact resistance increases and the reliability of the connection decreases.

In addition to the above structure, a power supply structure (not shown) for a door for a general building is disclosed in Japanese Utility Model Laid-Open No. 5-2.
No. 8993 proposes a structure in which two hollow arms are connected by a hollow rotating shaft, one arm is fixed to a door, the other arm is fixed to a building, and an electric wire is inserted inside the arm. I have.

However, this structure can cope with a case where the door performs a concentric opening and closing operation with one axis, but can perform a two-dimensional opening and closing operation including a curved operation like a sliding door of an automobile. It is not applicable to those that perform opening and closing operations and three-dimensional opening and closing operations, and the problem that the structure of the arm is enlarged and complicated due to the enlargement of the arm, and that the arm easily swings and noises when opening and closing, There was concern that smooth opening and closing would be difficult.

On the other hand, Japanese Patent Application Laid-Open No. 7-222274 proposes a power supply structure for a sliding door for an automobile as shown in FIGS. 23 (a) (b) to 24 (a) (b). In the structure shown in FIGS. 23A and 23B, a support bar 113 is attached to a slide door 111 along a guide rail 112 on the vehicle body 117 side, and a curled wire (wire harness) 114 is wound around the support bar 113. One end of the electric wire 114 is connected to a speaker 116 of the slide door 111 via a hinge 115, and the other end of the electric wire 114 is connected to an audio body (not shown) on the vehicle body side. When the door is closed as shown in FIG. 23A, the electric wire 114 extends along the support bar 113, and when the door is opened as shown in FIG.

In the structure shown in FIGS. 24 (a) and 24 (b), a reel 120 capable of feeding and winding an electric wire (wire harness) 119 in accordance with the opening / closing operation of the slide door 118 is provided on the vehicle body 121 side. One end of the electric wire 119 is connected to a speaker 123 on the door side via a hinge 122, and the other end of the electric wire 119 is connected to an audio (not shown) on the vehicle body side. When the door is closed as shown in FIG. 24 (a), the electric wire 119 is extended from the reel 120, and when the door is opened as shown in FIG.
It is wound up.

However, in the structure shown in FIGS. 23 (a) and 23 (b), a space for accommodating the electric wire 114 is required in order to use the stretchable curled electric wire 114, and the electric wire 114 is inevitably used. There is a concern that the length of the solid line of the wire 114 will be long and the electrical transmission loss will be large. In particular, when the number of circuits increases or a thick electric wire is used, the curl diameter must be increased, and the solid line length further increases.

In the structure shown in FIGS. 24 (a) and 24 (b), the number of windings of the reel 120 and the diameter of the winding shaft are related to the length of the electric wire 119. The shaft diameter becomes large, the device becomes large, and the reel 12
In addition, a mechanism for preventing the twisting of the electric wire 119 must be incorporated in the 0, and there is a problem that the number of circuits is increased and the device is enlarged even when a thick electric wire is used. Also,
In both structures of FIGS. 23 (a) (b) to 24 (a) (b), the electric wire 11
4, 119 are repeatedly bent by curl winding or reel winding, so that it is difficult to perform a smooth operation, and the electric wires (circuit portions) 114, 119 are easily damaged. Further, if the number of the electric wires 114, 119 is increased, the flexibility is increased. There was a problem that it became worse and could not handle the connection of other types of auxiliary equipment.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-described problems in the conventional structures, and can easily cope with a three-dimensional curved opening / closing operation of a slide door without intermittent contact. In addition to reducing the electric transmission loss caused by the long wire harness, the damage caused by the repeated bending of the wire harness can be eliminated, and the curl or reel winding of the arm, the wiring in the arm, the wire harness, etc. Can prevent the structure (equipment) from becoming complicated, bloated, costly, and deteriorated in operability, and can be applied to thin sliding doors. In addition, even if the number of circuits is increased, the flexibility of the wire harness is good and it can be used for many auxiliary machines, and the wiring of the harness and the terminal processing are easy. And to provide a feeding structure Idodoa.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a slide door having a guide portion in a sliding door opening / closing direction, a slider slidably engaged with the guide portion, and A power supply structure for an automobile slide door, wherein a wire harness on a slide door side is fixed and a curved portion is formed in the wire harness between the slider and a vehicle body side (claim 1). It is also effective to provide a harness support guide on the slide door above the guide portion, and suspend the wire harness from the harness support guide to the slider (claim 2). It is also effective to provide a take-up reel for urging the slider in the sliding door closing direction (claim 3). Further, a slide door opening / closing direction guide portion is provided on the slide door, a slider is slidably engaged with the guide portion, and one end side of a pair of link arms connected to the slider is connected to the slide door. A power supply structure for an automobile slide door, wherein the other end of the arm is pivotally supported on the slide door side, and a wire harness is routed from the pair of link arms to the slider. 4). It is also effective that a curved portion is formed in the wire harness between the slider and the vehicle body (claim 5). It is also effective that one end side of the pair of link arms is connected to the slider by a shaft portion, and the shaft portion is slidably engaged with a guide hole of the guide portion. It is also effective that a coil member is extrapolated to the curved portion of the wire harness (claim 7). It is also effective that the coil members are arranged at both ends of the bending portion (claim 8). It is also effective that the guide portion is formed of a reinforcing material for the slide door. It is also effective that the reinforcing member is a substantially corrugated plate-shaped reinforcing member, and that the plate-shaped reinforcing member is formed with a guide hole as the guide portion. It is also effective that the reinforcing material is a bar-shaped reinforcing material (claim 11). It is also effective that an arc-shaped second guide portion is provided on the slide door side and the slide engagement portions of the pair of link arms are slidably engaged with the second guide portion. Item 12). It is also effective that each guide hole as the guide portion and the second guide portion is formed in the inner panel or the plate (claim 13). It is also effective that the slide engaging portion is provided at a connecting portion between the pair of link arms. It is also effective that the slide engaging portion includes a pair of opposed flanges, and a peripheral edge of a guide hole as the second guide is engaged between the pair of flanges. 15). One of the pair of flanges is formed to have a small diameter and a diameter larger than the guide hole serving as the second guide, and an insertion hole for the one flange is provided in communication with an end of the guide hole. This is also effective (claim 16). Also,
It is also effective that the guide portion is a long plate-shaped guide rail (claim 17). Further, it is also effective that the pair of link arms are arranged upward with respect to the guide portion. It is also effective that the wire harness is a cabtire cable (claim 19).

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 9 show a first embodiment of a power supply structure (apparatus) for an automobile slide door according to the present invention.

As shown in FIG. 1, a horizontal guide rail (guide portion) 3 is provided below the inner panel 2 of the slide door 1.
A slide block (slider) 4 is slidably engaged with the guide rail 3, and the slide block 4 is pulled backward by the take-up reel 5, that is, in the door opening direction. 6 is fixed, one of the wire harnesses 6 is supported by a guide roller (guide portion) 7, and the wire harness 6
Is bent into a substantially U-shape to be on the vehicle body 8 side (battery side)
The wire harness 9 and the connectors 10, 1 on the vehicle body side
1 is connected. In this document, the vehicle traveling direction is defined as forward.

The guide rail 3, slide block 4, take-up reel 5, and guide roller 7 constitute a power supply device A for an automobile slide door according to this embodiment. The take-up reel 5 is fixed to the inner panel 2 of the slide door 1 behind the guide rail 3, and the guide roller 7 is fixed to the inner panel 2.
Is rotatably assembled at a middle portion in the height direction. The connectors 10 and 11 of the wire harnesses 6 and 9 on the door side and the vehicle body side are fixed inside the vertical wall 13 of the step portion 12 of the vehicle body 8. The slide door 1 is slidably engaged with a rail 15 (FIG. 7) on the vehicle body side by a hinge roller 14 at a lower end side.

The guide rail 3 has a straight band-like plate portion 16.
A slit (elongated) guide hole 17 is formed at the center in the height direction of the plate member, and the fixing portion 1 is provided at both ends of the plate portion 16 and an intermediate portion in the longitudinal direction.
8 to 20, each of the fixing portions 18 to 2
Numeral 0 is fixed to the inner panel 2 by bolts 22 via a ring-shaped spacer 21. A gap 23 corresponding to the thickness of the spacer 21 is formed between the inner panel 2 and the guide rail 3. The shaft portion (support shaft) 24 of the slide block 4 penetrates and engages with the guide hole 17 of the guide rail 3,
For example, a flange portion (not shown) at the tip of the shaft portion 24 is located in the gap 23 on the back side of the guide rail 3. Shaft 24
For example, a bearing (not shown) is provided on the outer periphery of
When the bearing slides on the guide hole 17, the slide block 4 smoothly advances and retreats in the horizontal direction along the elongated hole-shaped guide hole 17.

The take-up reel 5 has spring means (not shown) for winding the wire 26 inside the reel body 25, and the wire 26 extending from the nozzle 27 is always urged in the pulling direction. ing. The distal end of the wire 26 is connected to the rear end of the slide block 4. Thereby, the slide block 4 is always urged backward. The take-up reel 5 holds the slide block 4 when the slide door 1 is closed.
Is to be easily moved backward (to assist movement). The pulling force by the take-up reel 5 is such that the wire harness 6 on the door side is taut.

The guide roller (harness support guide) 7 has a shaft 28 fixed to the inner panal 2 above the guide rail 3 and a pulley-shaped rotatable around the shaft 28 via, for example, a bearing. And a grooved roller 29. The wire harness 6 on the door side is engaged with the groove 30 having a semicircular cross section without coming off. It is also possible to use a fixed guide shaft (harness support guide) (not shown) instead of the rotatable guide roller 7. It goes without saying that a similar groove 30 is formed in the guide shaft.

The door-side wire harness 6 swings by the movement of the slide block 4 while being suspended from the guide rollers 7. The distal end side of the wire harness 6 extends horizontally in front of the guide roller 7 for a short distance, and a connector 31 on the distal end side of the wire harness 6 is used to connect auxiliary equipment wires such as a power window motor, door lock, and speaker (not shown) inside the sliding door. Connected to harness connector. The connector 31 is fixed to the inner panel 2.

The lower portion of the wire harness 6 extending from the slide block 4 to the vehicle body 8 is bent substantially U-shaped forward, and the connector 1 is connected to the connector 1 through the curved portion 38 as described above.
0 and 11 are connected to the wire harness 9 on the vehicle body side, which is a power supply line. The vehicle body-side wire harness 9 continues forward (to the battery side) along the inner surface of the wall of the step 12. For example, one connector 10 is a male type, has female terminals (not shown) inside a connector housing (substituted by reference numeral 10) made of synthetic resin, and the other connector 11 is a female type.
A male terminal (not shown) is provided inside the connector housing (substituted by reference numeral 11).

As shown in FIG. 2, the slide block 4 is formed in a rectangular shape, has a stepped portion 32 cut out at the center in the longitudinal direction, and projects the door-side wire harness 6 in a curved state in front of the stepped portion 32. Let me. The rear half of the slide block 4 is formed to be thick, and the pressing plate 3 is formed in the thickness direction of the thick portion 33.
The wire harness 6 is fixed by overlapping the wire harness 6. The holding plate 34 has an arch portion 35 bulging at an angle of approximately 90 °, and the thick portion 33 has an arch portion 35.
Are formed, and the presser plate 34 is
7, the wire harness 6 is fixed between the groove 36 and the arch 35.

The U-shaped curved portion 3 of the door-side wire harness 6 is provided between the slide block 4 and the connector 10.
A coil spring (coil member) 39 is mounted so as to be wound around the outer circumference of the coil 8. Coil spring 3
Reference numeral 9 designates the direction of the curved portion 38 of the wire harness 6 and protects the curved portion 38 from rubbing or the like. The bending section 38 is oriented in such a manner that the bending section 38 is kept gently bent (corrected), and the bending section 3 accompanying the movement of the slide block 4 is adjusted.
8 to prevent bending and waving of the wire harness 6
This is to prevent damage.

Both ends of the coil spring 39 are pressed against the step 32 of the slide block 4 and the end face 10a opposite to the fitting surface of the connector 10 by spring force, and are separated from the step 32 and the end face 10a. No slippage. Slide both ends of coil spring 39 to slide block 4
It is also possible to fix the connector 10 and the connector 10 by locking means (not shown). It is also possible to set the inner diameter of the coil spring 39 to be equal to or less than the outer diameter of the wire harness 6 and to make it close to the outer peripheral surface of the wire harness 6.

As shown in FIG. 3, in the curved portion 38 of the wire harness 6 on the door side, the slide block 4 side and the connector 1 are connected.
It is also possible to partially extrapolate the coil springs (coil members) 40 and 41 only at the two positions on the zero side. The ends of the coil springs 40 and 41 are slide blocks 4
Of the connector 10 and the end face 10a of the connector 10. As in the example of FIG.
It is also possible to make the inner diameter of 1 closely contact the outer periphery of the curved portion 38. Both ends of the curved portion 38 are coil springs 40, 4
Since the direction is set at 1, the curved portion 38 always keeps the U-shape even when the slide block 4 is moved, and the same effect as in the example of FIG. 2 is achieved.

As shown in FIG. 4, a cabtire cable is used as the wire harness 6 of the present embodiment. As shown in, for example, JIS C3327, the cabtire cable has a plurality of electric wires 42 to 43 disposed inside and an insulator 4 such as foamed polyethylene between the plurality of electric wires 42 to 43.
4 and a vinyl insulating sheath 45 outside the insulator 44.
In this example, two types of electric wires 42 and 43 having different thicknesses are inserted.

By using a cabtire cable as the wire harness 6, a wire harness 6 having a complete circular cross section can be obtained, and the flexibility of the wire harness 6 is uniform without being different depending on the bending direction. 1
The wiring work from the guide roller 7 to the connector connection via the slide block 4 to the connector is facilitated, the shape retention in the curved portion 38 is good, and the wire harness 6 is cut or cut when the connector 10 is assembled. Terminal processing such as stripping and terminal crimping is also easy.

As shown in FIG. 5, when the slide door 1 is closed, the slide block 4 is pulled by the wire 26 of the take-up reel 5 and located at the rear end of the guide rail 3, and the door side wire harness 6 is connected to the slide block. 4 rises inclining forward and is supported by the guide roller 7 and extends to the front connector 31. Shaft 24 of slide block 4
(FIG. 1) is in contact with the rear end of the guide hole 17 of the guide rail 3 or is located near the rear end. Since the slide block 4 is pulled by the take-up reel 5, the slide block 4 is prevented from moving during running of the vehicle, and the slack of the wire harness 6 on the door side and the abrasion and abnormal noise caused by the slack are prevented. .

A curved portion 38 (see FIG. 1) of the wire harness 6 extends from the slide block 4 toward the vehicle body. The curved portion 38 (FIG. 1) is fixed to the step portion 12 of the vehicle body 8 by connector connection. In FIG. 5, 10 is a connector, 46 is a window glass, and 47 is a handle.

As shown in FIG. 6, the bending portion 38 of the wire harness
Is connected to the vehicle body, the slide block 4 moves to the front end of the guide rail 3 and is positioned with the slide door 1 opened. To be precise, the slide block 4 is located at substantially the same position as the closed state of the slide door 1 in FIG. Although the wire 26 of the take-up reel 5 is stretched and pulls the slide block 4 backward, the slide block 4 is held forward by the holding force of the bending portion 38 of the wire harness 6.

The take-up reel 5 assists the slide block 4 to smoothly slide backward when the slide door 1 is closed in the direction of arrow A as shown in FIG. When the slide door 1 is opened and closed, the wire harness 6 swings between the guide roller 7 and the slide block 4, but the guide roller 7 supports the wire harness 6 with a low frictional force when swinging,
The bending operation of the wire harness 6 along the outer periphery of the guide roller 7 is performed smoothly. Although the wire harness 6 is loosened when swinging, a slack absorbing mechanism (not shown) for pulling the swinging portion 48 of the wire harness 6 forward or backward may be provided.

As shown in FIG. 7, when the slide door 1 is closed, the slide door 1 is located on the same plane as the outer side surface of the vehicle body 8. The hinge roller 14 at the lower end of the slide door 1 is located at the front end of the inclined portion 15a on the front side of the rail 15. The curved portion 38 of the door-side wire harness 6 (FIG. 1) is bent in a substantially U-shape having a narrowed base when viewed from above, and is located on the rear end side of the slide door 1.

As shown in FIG. 8, while the slide door 1 is being opened, the slide door 1 projects largely outward along the bent shape of the rail 15. Slide block 4 (Fig. 6)
Is located in the middle of the guide rail 3 (FIG. 6) of the slide door 1, and the curved portion 38 of the wire harness 6 (FIG. 1) is wide and widely opened to be bent in a substantially U-shape. The hinge roller 14 moves from the inclined portion 15a of the rail 15 along the straight portion 15b.

As shown in FIG. 9, when the slide door 1 is open, the slide door 1 is positioned parallel to the outer surface of the vehicle body 8 and the hinge roller 14 is connected to the straight portion 15 of the rail 15.
b is located on the rear end side. The slide block 4 (FIG. 6) is located on the front end side of the slide door 1 and has a wire harness 6.
The curved portion 38 shown in FIG. 1 has a substantially U-shape that is slightly pulled rearward and is inclined.

According to the present embodiment, the curved portion 38 is formed in the wire harness 6 (cabtire cable) on the door side, so that the sliding door 1 can smoothly cope with a three-dimensional curved opening / closing operation. In addition, since this is a simple mechanism in which the wire harness 6 on the door side is suspended from the upper center of the slide door 1 and the position is adjusted by the slide block 4 connected to the take-up reel 5, the depth dimension (in the thickness direction of the door) (Dimensions) can be reduced, and can be applied to the thin sliding door 1. In addition, since a cabtire cable is employed as the wire harness 6 on the door side, the wiring and terminal processing are easy.

Further, since the holding plate 34 of the slide block 4 is fastened with the small screw 37 to fix the wire harness 6 on the door side, the work of attaching and detaching the wire harness 6 is easy, and assembling and maintenance are easy. Is good. Further, since the wire harness 6 on the door side is curved in a U-shape from the slide block 4 to the vehicle body side, the bending operation of the wire harness 6 when opening and closing the slide door is performed smoothly in the bending portion 38 and the bending portion 38 The elasticity absorbs the expansion and contraction and the tensile force of the wire harness 6, thereby preventing the wire harness 6 from being damaged. In particular, by extrapolating the coil springs 39 to 41 to the bending portion 38, the bending portion 38 is protected from interference with the outside, and the shape of the bending portion 38 is positively maintained. The sliding block 4 is held at a predetermined position on the guide rail 3 when the sliding door is opened and closed, and unnecessary movement such as fluttering of the swinging portion 48 (FIG. 5) of the wire harness 6 is promoted. Is prevented. In addition, when the slide door is opened and closed, the take-up reel 5 also prevents the slide block 4 from moving forward and backward unnecessarily, and holds the slide block 4 at a predetermined position on the guide rail 3, thereby achieving the same effect as described above.

FIGS. 10 to 15 show a second embodiment of a power supply structure (apparatus) for an automobile slide door according to the present invention. As shown in FIG. 10, the power supply apparatus B for a sliding door for an automobile of this embodiment eliminates the take-up reel 5 (FIG. 1) of the previous example, and has two (one pair) link arms 52 and 53 on a guide rail (guide portion) 51. The door-side wire harness 54 is provided along the two link arms 52 and 53 so as to be openable and closable, and is expanded and contracted by the opening and closing operation of the two link arms 52 and 53.

As in the previous example, a horizontal guide rail 51 is fixed to the lower portion of the inner panel 2 of the slide door 1, and a slide block (slider) 56 is slidably engaged with the elongated guide hole 55 of the guide rail 51. are doing. One end of the first link arm 52 is rotatably connected to the slide block 56 via a shaft 57 (FIG. 11). One end of a second link arm 53 is rotatably connected to the front end of the guide rail 51 via a shaft 58 (FIG. 11), and the other end of the first link arm 52 is connected to the second link arm. The other end of 53 is connected by a rotating shaft 59. Both link arms 52 and 53 stand upward in an inverted V-shape. Other configurations are substantially the same as those of the first embodiment. The guide rail 51, the slide block 56, and the two link arms 52, 53 constitute a power supply device B for a vehicle slide door of this example.

As in the previous example, the guide rail 51 has a slit-shaped guide hole 5 at the center in the height direction of the straight band-shaped plate portion 60.
5 are formed, and fixed portions 62 to 64 are formed at both ends of the plate portion 60 and an intermediate portion in the longitudinal direction.
Are fixed to the inner panel 2 with bolts 66 via ring-shaped spacers 65. A gap 67 corresponding to the thickness of the spacer 65 is provided between the inner panel 2 and the guide rail 51.
Is configured.

A shaft portion (support shaft) 68 of the slide block 56 penetrates into and engages with the guide hole 55 of the guide rail 51.
A flange 69 (FIG. 13) at the end of the shaft 68 is located in the gap 67 on the back side of the guide rail 51. The shaft portion 68 is rotatable by a bearing 70 (FIG. 13), whereby the slide block 56 smoothly advances and retreats along the guide hole 55 in the horizontal direction.

On the back side of the guide rail 51, one end of the first link arm 52 is formed by a shaft 71 (see FIGS. 12 and 13) and a front half (thin portion) of the slide block 56.
72. One end of the first link arm 52 is located in the gap 67 and moves integrally with the slide block 56 along the back surface of the guide rail 51.

With the other end of the second link arm 53 wrapped around the other end of the first link arm 52, the shaft 59
Are connected by One end of the second link arm 53 is attached to the shaft 7 on the back side of the fixed portion 62 at the distal end of the guide rail 51.
3 and are rotatably connected. Second link arm 5
3 is also located in the gap 67. The connection structure of the link arms 52 and 53 will be described later with reference to FIGS.

In FIG. 10, the door side wire harness 54 is connected to the first link arm 5 from the slide block 56.
2 and are arranged in a substantially inverted V-shape along each surface of the second link arm 53, and U
It is folded back in the shape of a letter and connected to a wire harness (not shown) on the accessory side in the slide door 1 by a connector. The wire harness 54 is fixed to each link arm 52, 53 by a band clip (not shown) or the like. Each link arm 52, 53 is provided with a plurality of pairs of fixing holes 74 on both sides of the wire harness 54. The wire harness 54 has a slight extra length above the shaft portion 59.

As the slide block 56 moves, the link arms 52 and 53 open and close (expand and contract) back and forth, and the wire harness 54 expands and contracts integrally with the link arms 52 and 53. Both link arms 52 and 53 are slide block 5
When the wire harness 54 is taken in the slide door 1 at both ends of the slide door 1 at the same time as assisting the movement of the slide door 6, the wire harness 54 is prevented from hanging down and being entangled. It functions in the same way as the take-up reel 5 (FIG. 1) of the previous example in that the slide block 56 assists the retreat operation.

It is an essential condition that both link arms 52 and 53 are arranged above the guide rail 51 and are arranged so as to open in an inverted V-shape.
The link arms 52 and 53 are easily opened by the weight of the slide blocks 2 and 53, and the retreating operation of the slide block 67 is reliably performed with a large force. The force for retracting the slide block 56 by the link arms 52 and 53 is
53 gradually increases from the half-opened state in the inverted V-shape as shown in FIG. 10, and the slide block 56 is reliably pushed to the rear end side of the guide rail 51 when the slide door 1 is fully opened.

As shown in FIG. 12, the sliding door 1 (FIG. 10)
In the fully open state, both link arms 52 and 53 are completely closed as shown by the solid line and stand vertically upward,
In the fully closed state, the two link arms 52 and 53 open in the shape of an arrow as indicated by a chain line. When both link arms 52 and 53 are extended in a straight line in the horizontal direction with the slide door 1 fully closed, the link arms 52 and 53 are locked and the slide door 1 is locked.
Since the sliding door 1 cannot be opened (FIG. 10), it is necessary to hold the two link arms 52 and 53 in the shape of a square when the slide door 1 is fully closed. When the slide door 1 is fully closed, both link arms 52 and 53 open in a U-shape and press the slide block 56 backward by its own weight, so that the movement of the slide block 56 during running of the vehicle is prevented, Slack of the wire harness 54 (FIG. 10) on the door side and abrasion, abnormal noise, and the like accompanying the slack are prevented.

When the link arms 52 and 53 shift from the closed state to the open state, the central shaft portion 59 connecting the link arms 52 and 53 moves along an arc-shaped locus. The opening and closing operation of the link arms 52 and 53 is performed by moving the slide block 56 along the guide rail 51, and the slide block 56 is connected to the wire harness 54.
The same position is maintained by the curved portion 75 of FIG.

As described above, one end of the first link arm 52 is formed by the shaft 71 and the thin portion 7 in the first half of the slide block 56.
2, and one end of the second link arm 53 is connected to a fixed portion 62 on the front side of the guide rail 51 by a shaft portion 73. The fixing portion 62 is positioned so as to protrude above the horizontal guide hole 55, and the shaft portion 73 is positioned above the front end of the guide hole 55. Shaft 7 of first link arm 52
1 is located through the guide hole 55, and the second link arm 52 is formed slightly shorter than the first link arm 52. Thereby, the first link arm 52
Are easy to open and close. Bolt insertion holes 76 to 78 are provided in the fixing portions 62 and 63 on both sides of the guide rail 51 and the fixing portion 64 in the middle in the longitudinal direction.

As shown in FIG. 13, the guide rail 51 is provided between the inner panal 2 of the slide door 1 and the gap 6 corresponding to the spacer 65.
7 and the first link arm 52
And one end of the second link arm 53 are located.
The slide block 56 includes a shaft 68 such as a pin or a bolt.
Slidably engages the guide hole 55 of the guide rail 51. A bearing 70 is provided on the outer periphery of the shaft portion 68 in the guide hole 55, and slide resistance is reduced by the bearing 70. A flange portion 69 is screwed and fixed to the tip of the shaft portion 68, and the slide block 56 is guided by the flange portion 69. It is positioned and held on a rail 51.

A shaft 71 is provided through the thin portion 72 in the first half of the slide block 56, the guide hole 55 of the guide rail 51, and one end of the first link arm 52. Flanges 79 and 80 are provided, and bearings 81 are provided on the outer periphery of the shaft portion 71 at the guide hole 55 and one end, respectively. The shaft portion 71 slides in the guide hole 55 with low force by each bearing 81, and The first link arm 52 smoothly rotates around the shaft 71. The slide block 56 has two front and rear shaft portions 68.
And the shaft 71 slides in the guide hole 55 stably.

The shaft 59 extends through the other end of the first link arm 52 and the other end of the second link arm 53.
Are provided at both ends of the shaft portion 59, and a bearing 84 is provided on the outer periphery of the shaft portion 59. The link arms 52, 53 are smoothly rotated by the bearing 84.

One end of the second link arm 53 is disposed on the back side of the fixing portion 62 via an annular spacer 85, and a shaft 73 which is a bolt is provided through the one end and the spacer 85. At one end, a bearing 86 is provided on the outer periphery of the shaft portion 73, and the second link arm 53 is smoothly rotated by the bearing 86. The shaft 73 is screwed into the inner panel 2 via the flange 87.

In FIG. 10, the lower portion of the wire harness 54 extending from the slide block 56 to the vehicle body 8 is bent substantially U-shaped forward, and the bent portion 75 is connected to the connector 8.
The power supply lines 8 and 11 are connected to a wire harness 9 on the vehicle body side, which is a power supply line. The vehicle-side wire harness 9 extends forward (battery side) along the inner surface of the wall of the step portion 12.

As shown in FIG. 14, the slide block 56 is formed in a rectangular shape, and faces the front of the central step portion 89, that is, the flange portion 80 following the shaft portion 71 of the first link arm 52. The curved portion 75 protrudes. As in the previous example, the rear half of the slide block 56 is formed to be thick, and the pressing plate 91 is overlapped in the thickness direction of the thick portion 90 and fixed so as to sandwich the wire harness.
The holding plate 91 is formed with an arch portion 92 bulging at an angle of approximately 90 °, the thick portion 90 is formed with a groove 93 corresponding to the arch portion 92, and the holding plate 91 is formed by a small screw 94 with the thick portion 90.
, And the wire harness 54 is sandwiched between the groove 93 and the arch portion 92.

As in the previous example, a coil spring (coil member) 95 is mounted between the slide block 56 and the connector 88 such that a coil spring (coil member) 95 is wound around the outer periphery of the U-shaped curved portion 75 of the door-side wire harness 54. . The coil spring 95 is connected to the curved portion 75 of the wire harness 54.
And protects the curved portion 75 from rubbing and the like. Both ends of the coil spring 95 are connected to the stepped portion 89 of the slide block 56 and the end face 8 of the connector 88 by a spring force.
8a.

As shown in FIG. 15, the door side wire harness 5
The coil springs 96 and 97 (coil members) may be partially disposed in the bending portion 75 of the fourth portion, limited to two portions on the slide block 56 side and the connector 88 side. The ends of the coil springs 96 and 97 are fixed to the stepped portion 89 of the slide block 56 and the end surface 88 a of the connector 88. 14 is the same, but the inner diameters of the coil springs 96 and 97 can be closely attached to the outer circumference of the curved portion 75. Since both ends of the curved portion 75 are oriented by the coil springs 96 and 97, the curved portion 75 always maintains the U-shape even when the slide block 56 moves.

As in the first embodiment (see FIG. 4), a cabtire cable is used as the wire harness 54. By using the cabtire cable, a wire harness 54 having a complete circular cross section can be obtained,
Since the flexibility is uniform, the wiring work to both link arms 52 and 53 and the wiring work from bending the slide block 56 to connecting to the connector 11 of the wire harness 9 on the vehicle side are facilitated. The shape retention of the curved portion 75 is good, and the terminal processing when assembling the connector 88 is also easy.

In FIG. 10, the connectors 88, 11 of the wire harnesses 54, 9 on the door side and the vehicle body side are fixed inside the vertical wall 13 of the step portion 12. The slide door 1 is slidably engaged with a rail 15 (FIG. 7) on the vehicle body side by a hinge roller 14 at a lower end side. As in the previous example, since the curved portion 75 of the wire harness 54 is supported by the connector on the vehicle body side, the slide block 56 moves to the front end of the guide rail 51 when the slide door 1 is opened. To be precise, the slide door 1 moves backward while leaving the slide block 56.

The operation of the first embodiment shown in FIGS. 7 to 9 is the same in this embodiment, and the reference numeral 38 of the bending portion in FIGS.
That is, in the closed state of the slide door 1 in FIG.
The slide door 1 is located on the same plane as the outer surface of the vehicle body 8.
The hinge roller 14 at the lower end of the slide door 1 is the rail 1
5 is located at the front end of the front inclined portion 15a. The curved portion 75 of the door-side wire harness 54 (FIG. 10) is bent in a substantially U-shape with its base narrowed when viewed from above, and is located on the rear end side of the slide door 1.

While the slide door 1 shown in FIG. 8 is being opened, the slide door 1 projects largely outward along the bent shape of the rail 15. Slide block 56 (FIG. 10)
Is located in the middle of the slide door 1, and the wire harness 54
The curved portion 54 in FIG. 10 is wide and wide open to bend in a substantially U-shape. The hinge roller 14 is the inclined portion 1 of the rail 15.
It moves from 5a along the straight part 15b.

When the sliding door 1 is opened as shown in FIG. 9, the sliding door 1 is located parallel to the side surface of the vehicle body 8, and the hinge roller 14 is located at the rear end of the straight portion 15 b of the rail 15. The slide block 56 (FIG. 10) is located on the front end side of the slide door 1 and has a wire harness 54.
The curved portion 75 shown in FIG. 10 has a substantially U-shape that is slightly pulled rearward and is inclined.

According to the second embodiment, the wire harness 54 is connected to the slide block 56 and the link arm 52,
Since it has a simple structure simply attached along with 53, the depth dimension can be reduced, and it can be applied to the thin sliding door 1. In addition, since the wire harness 54 is supported by using the pair of link arms 52 and 53, the wire harness 54 does not loosen, hang down, or become entangled when the slide door 1 is opened and closed, and the wire harness 54 comes into contact with the inner panel 2. As a result, the wire harness 54 is reliably protected. In addition, link arm 5
Since the slide block 56 is reliably returned to a predetermined position when the slide door 1 is closed by the retreating operation of the weights 2 and 53, the bending portion 7 due to the return delay of the wire harness 54.
5 is prevented, that is, a tensile load on the connector 88 is prevented.

Further, similarly to the above embodiment, the wire harness 5
The curved portion 75 of 4 can smoothly cope with the three-dimensional curved opening / closing operation of the slide door 1 and the cabtire cable is used as the wire harness 54 on the door side, so that the wiring and the terminal processing are easy. . Further, the workability of attaching and detaching the wire harness 54 by the pressing plate 91 of the slide block 56 is improved, and the wire harness 54 by the bending portion 75 is improved.
Of the wire harness 54, the action of absorbing the tensile force, and the coil springs 95-97.
This is similar to the above-described embodiment in that there is a function of protecting the curved portion 75 and maintaining the shape.

In each of the above embodiments, the guide rails 3, 51 are provided on the slide door side, and the wire harnesses 6, 54 on the door side are moved integrally with the slide blocks 4, 56. A guide rail,
It is also possible to adopt a structure in which the wire harness on the vehicle body side is fixed to the slide block engaged with the guide rail, and the connector is connected to the wire harness on the door side via the U-shaped curved portion of the wire harness on the vehicle body side. In this case, for example, the sliding door 1 in FIG. 1 should be read as a vehicle body and the vehicle body 8 as a sliding door.

FIG. 16 shows a third embodiment of the power supply structure for an automobile slide door according to the present invention. This structure comprises a pair of linked link arms 125, 126
Has one end side pivotally supported on the slide door 127 side and the other end side connected to a slide block (slider) 128, and has a side surface serving as a guide rail (guide portion) for horizontally slidingly engaging the slide block 128. A plate-like reinforcing member 129 which is a reinforcing member for preventing collision is used, and the plate-like reinforcing member 129 is provided with a guide hole 130 which is a long slit-like hole in the horizontal direction.

By eliminating the guide rail in the second embodiment and using the existing plate-like reinforcing member 129 for countermeasures against side collision instead of the guide rail, the number of parts and the cost of parts are reduced. In addition, the man-hour for assembling the guide rail alone is reduced. In addition, the weight of the slide door 127 is reduced because there is no guide rail.

The plate-like reinforcing member 129 is formed in a corrugated shape, and the slit-shaped guide hole 130 is formed in the flat portion 132 below the corrugated portion 131. The corrugated portion 131 is composed of two or more numbers of substantially vertical ridges 133 that are continuous in parallel in the vertical direction, and a half ridge 134 that follows the upper and lower ridges 133. It is configured. Lower half mountain section 13
4 is followed by the flat portion 132, and the width of the flat portion 132 is substantially equal to the width of one peak 133. The surface of the flat portion 132 and the apex 133a of each crest 133 are located at substantially the same height (height in the slide door thickness direction), and the crest 133a of each crest 133 is in the horizontal direction similarly to the guide hole 130. And the back surfaces of the pair of link arms 125 and 126 are in line contact with the apex 133a of each crest 133 and the apex of the upper half crest 134 so that sliding contact is possible with small sliding resistance. .

The corrugated portion 131 is originally intended to increase the rigidity of the plate-like reinforcing material 129, but the contact area between the pair of link arms 125 and 126 is reduced to reduce
This is also effective for smoothly opening and closing the 25 and 126. The vertical width of the plate-like reinforcing member 129 is substantially equal to that of the link arm 125 immediately before closing as shown in FIG.
Even if it is slightly shorter than the length of 126 (the height in the vertical direction),
Or it may be higher. The plate-like reinforcing member 129 is approximately the same as or slightly shorter than the entire width of the slide door 127, and the narrow flat portion 135 of the valley is fixed to the inner panel 137 of the slide door 127 by fixing means such as bolts 136.

The front end 126 of the front link arm 126
a is rotatably supported by a flat portion 132 on the lower side of the plate-like reinforcing member 129 by a shaft portion 138 such as a bolt. Shaft 138
Is located slightly above the front end of the guide hole 130. The same applies to the second embodiment, but the link arms 125 and 126 are provided because the front shaft portion 138 is located immediately near the guide rail or the slit-shaped guide hole 130.
The opening and closing operation is small and smooth.

As in the second embodiment, the pair of link arms 125 and 126 are connected by a central shaft 139, and the rear end 125 a of the rear link arm 125 is turned on the slide block 128 by the shaft 140. It is movably supported. The wire harness 141 includes a pair of link arms 12.
5, 126, and are routed upward from the front end of the front link arm 126 along the apex 133 a of each ridge 133 of the plate-like reinforcing member 129, and the electrical components in the slide door 127. And auxiliary equipment. Since the wire harness 141 is almost in point contact with the apex 133a of each peak 133 of the plate-like reinforcing member 129, the sliding contact resistance between the wire harness 141 and the slide door when the link arms 125 and 126 are opened and closed, and The contact friction is small, and rubbing and abrasion of the wire harness 141 are prevented.

The wire harness 141 is bent forward from the link arm 125 on the rear side via the slide block 128, and the wire harness 143 on the vehicle body side at the rear end side of the step 142 on the vehicle body side from the curved portion 141a.
Are connected by a connector 144.

FIG. 17 shows a slide block (slider).
The slide block 128 is divided into a main body portion 144 and a holding plate 145 in the same manner as in FIG. 14 of the second embodiment. , Arch part 147 of holding plate 145
A curved wire harness receiving groove 149 is formed to face the groove 148 on the inside of the wire harness. With the wire harness 141 (FIG. 16) fitted into the accommodation groove 149, the holding plate 14
5 is fixed to the thick portion 146 with a plurality of small screws 150.

The thick portion 146 is provided with a rear shaft portion 151 (FIG. 16) slightly adjacent to the accommodation groove 149 on the rear side. The rear shaft 151 includes a bolt 152, a nut member 153, and a ring 171. The nut member 153 includes a flange portion 154 that is in contact with the back surface of the plate-shaped reinforcing member 129, and a protrusion that projects from the center of the flange portion 154, and has a female screw hole 155 inside.
And a boss 156 located in the slit-shaped guide hole 130. The ring 171 has a boss 156
Is rotatably engaged with the outer periphery of the guide hole 130 and slidably contacts the inner surface of the guide hole 130. The bolt 152 is inserted through the insertion hole 157 of the thick portion 146 from the surface side of the thick portion 146, and is screwed into the female screw hole 155 of the boss portion 156.

The main body 144 of the slide block 128
A rear end portion 125a of the rear link arm 125 is rotatably supported by the front shaft portion 140 (FIG. 16) in the thin portion 158 in the first half. The front shaft portion 140 is provided with the male screw member 15.
9, a female screw member 160, and rings 164 and 166 engaged with the respective screw members 159 and 160. The male screw member 159 includes a flange portion 161 in contact with the back surface of the plate-like reinforcing member 129, a boss portion 162 protruding from the center of the flange portion 161 and located in the guide hole 130, and a boss portion 162.
And a bolt portion 163 projecting from the center of the guide hole 130 and penetrating the guide hole 130. The ring 164 is rotatably engaged with the outer periphery of the boss 162 and slidably contacts the inner surface of the guide hole 130.

The female screw member 160 has a flange 165 in contact with the surface of the rear end of the link arm 125 on the rear side, and projects from the center of the flange 165.
And a boss 168 having a female screw hole 167 on the inside, and a ring 166 is engaged with the outer periphery of the boss 168, and the outer periphery of the ring 166 is
Engages. The slide member 128 includes the front and rear rings 17.
1, 164 smoothly and slidably contact the guide hole 130 with low sliding resistance, and smoothly rotate by the front ring 166. The structure in FIG. 17 is similar to the structure in FIG.

FIG. 18 shows a state similar to the third embodiment.
In a structure in which one end of a pair of linked link arms 125 ′ and 126 ′ is pivotally supported on the slide door 172 side and the other end is connected to a slide block (slider) 173,
As a guide rail (guide portion) for engaging the slide block 173 so as to be slidable in the horizontal direction, a pipe-shaped bar-shaped reinforcing member 173 which is a reinforcing member for preventing a side collision is used.

The bar-shaped reinforcing member 174 has brackets 175 at both front and rear ends thereof, and the inner panel 1 of the sliding door 172 is provided.
It is firmly fixed to 76. Each bracket 175
Is composed of a pair of leg portions 177, a vertical wall portion 178 connecting the leg portions 177, and a cylindrical fitting portion 179 formed integrally with the wall portion 178. Each tubular fitting portion 179
Each end of the bar-shaped reinforcing member 174 is inserted and fixed to the leg 1.
A flange portion 180 integral with 77 is fixed to inner panel 176 with bolts 181. The upper bolt 181 of the front bracket 175 also functions as a shaft supporting the front end of the front link arm 126 '.

The bar-shaped reinforcing member 174 supported by the bracket 175 is positioned parallel to the inner panel 176 at a distance from the surface of the inner panel 176.
A slightly larger slide block 173 is slidably engaged with the bar-shaped reinforcing member 174.

As shown in FIG. 19, the detailed structure of the slide block 173 is such that the slide block 173 is made of, for example, a synthetic resin so as to be dividable in the plate thickness direction, and the block body 182 near the inner panel 176 is formed in a substantially rectangular shape. The block main body 183 near the vehicle compartment is formed in a shape in which a front upper portion is cut out in a rectangular shape. A sliding groove 184 having a semicircular cross section is formed in the lower half of both block bodies 182 and 183 in the horizontal direction, and the sliding grooves 184 are united to form an inner diameter slightly larger than the outer diameter of the bar-shaped reinforcing member 174. Having. Each of the sliding grooves 184 is formed to have a larger diameter, a half sleeve (not shown) having a low sliding resistance is fitted and fixed, and the bar-shaped reinforcing member 174 is slid along the inner surface of the sleeve. It is possible.

A curved groove 185 having a semicircular cross section for holding the wire harness 141 ′ in a forwardly curved state is formed in the upper half of each of the block bodies 182 and 183. The block body 182 near the inner panel 176 has a rear link arm 12 as shown in FIG.
A fixing hole 186 for rotatably supporting the rear end portion 125a 'of the 5' with the shaft portion 140 'is provided. The two block bodies 182 and 183 are engaged with the bar-shaped reinforcing member 174 and fitted with the wire harness 141 ′.
It is united and fixed by a plurality of small screws 187.

In FIG. 18, a pair of link arms 12
5 ', 126' are connected to be openable and closable by a central shaft portion 139 ', a wire harness 141' is routed and fixed along a pair of link arms 125 ', 126', and projects forward through a slide block 173. It is bent and bent backward, and is connected to a wire harness 143 'on the vehicle body side at the rear of the step by a connector.

According to the structure in which the bar-shaped reinforcing member 174 shown in FIG. 18 is also used as a guide rail, it is not necessary to newly provide a guide rail. The weight of the door 172 is reduced. In particular, since the guide rail 174 is a hollow pipe, it is lightweight. The same applies to the case where a solid cylindrical bar-shaped reinforcing member (not shown) is used. However, since the bar-shaped reinforcing member 174 has excellent bending rigidity, the bar-shaped reinforcing member 174 is hardly bent, and the pair of link arms 125 'and 126' is opened and closed. Even when a prying force or the like is sometimes applied, the slide block 173 can be positioned straight without bending, and can slide on the slide block 173 smoothly.

The bar-shaped reinforcing material is not limited to a circular cross section.
Various shapes such as a triangular cross-section and an L-shape are applicable. Also, the structure of the guide rail shown in FIGS. 16 to 19 can be applied to the guide rail of the first embodiment (FIGS. 1 to 9).

FIGS. 20 to 21 show a fourth embodiment of the power supply structure for an automobile slide door according to the present invention. In this structure, as shown in FIG. 20, a pair of link arms 191 and 192 connected in a substantially inverted V-shape as a wire harness fixing member are arranged on the inner surface side of the slide door 1 so as to be freely bent. , 192 are routed along with the sliding door 19.
A first guide hole (guide portion) 195 extending straight in the front-rear direction of the vehicle is provided in a flat plate 194 on the inner surface side of the first guide hole 195, and the first guide hole 195 is curved in an arc shape above the first guide hole 195. Two guide holes (guide portions) 196 are provided, and a pair of link arms 191, 1
One end 191a of the second arm 92 is rotatably supported, the other end 192a side of the pair of link arms 191 and 192 is slidably engaged with the first guide hole 195, and the pair of link arms 191 and 192 is slidably engaged with the second guide hole 196. A central shaft portion 197 which is a connecting portion of the link arms 191 and 192 is slidably engaged.

The plate 194 is formed of a metal plate or a synthetic resin plate in a rectangular shape, and has a peripheral end fixed to the inner panel 199 of the slide door 190 by bolts 198. The first and second guide holes 195, 19 are directly formed in the inner panel 199 without using the plate 194.
6 can also be provided. In this case, at least a portion of the inner panel 199 where the guide holes 195 and 196 are provided needs to be formed flat.

A first guide hole 195 is provided horizontally near the lower end of the plate 194. A little above the front end of the first guide hole 195, the front end 191a of the front link arm 191 is connected to the plate 194 by the front shaft 200. Front link arm 19
Numeral 1 is rotatable about a shaft 200. In this specification, the front and rear correspond to the front and rear in the vehicle traveling direction.

The link arm 191 on the front side and the link arm 192 on the rear side are connected by a central shaft 197 which is the connecting portion. Rear end 1 of rear link arm 192
92 a is rotatably supported by a shaft 202 at the front end side of a rectangular block-shaped slide block (slider) 201, and the slide block 201 is connected to a first shaft 203 via a rear shaft 203 parallel to the shaft 14. It is slidably engaged with the guide hole 195. The shaft portion 203 is provided with a flange portion (not shown) that slides on the back surface of the plate 194. The front shaft portion 202 can be slidably engaged with the first guide hole 195 together with the rear shaft portion 203. The slide block 201 has a wire harness 193
Is fixed by a half-split cylindrical member 204.

The wire harness 193 is routed and fixed from the front link arm 191 to the rear link arm 192, curved from the slide block 201, and near the step portion of the vehicle body body near the vehicle body body side. 204 is connected by a connector 206. The wire harness 193 is connected to the front link arm 191.
From inside the sliding door 190 and is connected to an electric component (not shown) in the sliding door. The configuration using a pair of link arms 191 and 192 connected in a substantially inverted V-shape, a straight first guide hole 195, a slide block 201, and a plate 194 is the same as that of the third embodiment shown in FIG. This is almost the same as the configuration using the plate 194 instead of the reinforcing member.

A pair of link arms 191 and 192 are connected at the top, and a central shaft portion 197 that is the connection portion is slidably engaged with the arc-shaped second guide hole 196. This point is a characteristic part not in the above-described embodiment. Shaft portion 19 which is a connecting portion between a pair of link arms 191 and 192
7 is slidably engaged with the arc-shaped second guide hole 196, so that the link arms 191 and 192 are prevented from shaking and rattling.

The second guide hole 196 is the first guide hole 1
95 and a second guide hole 196.
The front end 196a of the first guide hole 195 is located slightly behind the front end 195a of the first guide hole 195 at the upper end of the plate 194, and the rear end of the second guide hole 196 is located at the middle of the plate 194 in the height direction. The hole 195 is located above an intermediate portion in the longitudinal direction. Front link arm 19
Reference numeral 1 denotes a circular motion about the front shaft portion 200, and the arc shape and the bending direction of the second guide hole 196 are the tip of the front link arm 191, ie, a pair of link arms 19.
1 and 192 correspond to the rotation locus of the connecting portion 197.

At the rear end of the second guide hole 196, an insertion hole 207 having a circular diameter larger than the width D of the guide hole 197 is formed. From this insertion hole 207, the central shaft portion 19
7 is inserted and the plate 194 is inserted.
, And can slide along the peripheral edge 209 of the second guide hole 196 on the back side. When the slide door 190 is closed, the position of the insertion hole 207 is
7 is located at a position where it does not reach. Second guide hole 19
The length of 6 is set longer than the rotation locus of the front link arm 191 when the slide door 190 is opened and closed. As the sliding door 190 is closed forward, the central shaft 1
97 moves from the front end side to the rear end side of the second guide hole 196, but when the slide door 190 is fully closed, the shaft portion 19 moves.
7 is located in front of the insertion hole 207.

As a result, the central shaft portion 197 is prevented from coming off from the second guide hole 196 when the slide door 190 is opened and closed, so that the pair of link arms 191 and 192 are always backlashed by the second guide hole 196. It is supported stably. Further, the work of engaging the central shaft portion 197 with the second guide hole 196 by the insertion hole 207 is facilitated.

The same configuration as the insertion hole 207 can be adopted for the engagement between the straight first guide hole 195 and the front and rear shaft portions 202 and 203 on the slide block 201 side. That is, an insertion hole (not shown) having a larger diameter than the flanges (not shown) of the shafts 202 and 203 is formed at the rear end of the first guide hole 195. The length of the first guide hole 195 is set so that the rearmost shaft portion 203 does not reach the insertion hole when the slide door 190 is opened and closed.

FIG. 21 shows a pair of link arms 191 and 1
The central shaft portion 197 and the plate 194 which are the connection portions of the 92
21 is a sectional view taken along the line C-C in FIG. The central shaft portion 197 has a first flange portion 208 and a second flange portion 210 facing the front and back surfaces of the plate 194 so as to sandwich the plate 194. Even if it is sandwiched, it does not come in strong contact with each other.
8 and 210 have a slight gap in the second guide hole 196.
Weakly in contact with the peripheral edge 209. Both collars 208, 2
10 functions as a sliding contact portion with respect to the peripheral edge of the second guide hole 196.

The first flange 208 is a short cylindrical shaft body 21.
On the base end side of the first guide hole 196, the diameter is larger than the inner width of the second guide hole 196, and slightly smaller than the inner diameter of the insertion hole 207 (FIG. 20) at the end of the guide hole. The second flange 210 has a larger diameter than the first flange 208 and the insertion hole 207 (FIG. 20) at the longitudinal middle part of the shaft main body 211. A circumferential groove 212 that slidably engages the peripheral edge 209 of the second guide hole 196 of the plate 194 is formed between the flanges 208 and 210. The shaft main body 215 and the two flange portions 208 and 210 constitute a slide engagement portion 213 for the second guide hole 196. The central shaft portion 197 integrally includes a slide engagement portion 213.

The first flange 208 is provided with the insertion hole 207 (FIG. 2).
0) to the back side of the plate 194 and the shaft body 2
11 is slidably engaged in the second guide hole 196. When the first flange 208 on the small diameter side is inserted into the insertion hole 207, the second flange 210 on the large diameter is
Abuts the surface. First flange 208 and second flange 21
The distance between the flanges 208 and 210 is slightly larger than the thickness of the plate 194, and the flanges 208 and 210 can slide along the front and back surfaces of the plate 194. The gap between each flange 208, 210 and the plate 194 is a pair of link arms 191, 1
Reference numeral 92 denotes a plate which is small enough to prevent rattling and noise of the plate 194.

A small-diameter male screw portion 214 is formed on the distal end side of the shaft main body 211, and a nut member 215 with a flange is screwed to the male screw portion 214. Linker comb 19 on the front side
1 is externally inserted into the shaft main body 211 via the collar 217, and the circular hole 218 at the connection side end of the rear link arm 192 is inserted into the shaft of the nut member 215 via the collar 219. It is extrapolated to the part 220. A washer 221 is mounted between the link arms 191 and 192. The flange 222 of the nut member 215 is slidably in contact with the link arm 192 on the rear side. The pair of link arms 191 and 192 are formed by a second flange 210 and a third flange 22.
2 so as to be rotatable. Third collar 22
2 is provided with an engagement hole 223 for a fastener (not shown).

It is also possible to use an E-ring, washer or the like (not shown) as the second flange 210. In the case of an E-ring, a circumferential groove is formed in the shaft main body 211, and in the case of a washer, a contact step is formed in the shaft main body 211 so that the plate 194 is not strongly sandwiched between the first flange 208 and the first flange 208. I do.

In FIG. 20, a slide door 190 is slidably engaged with a guide rail (not shown) on the vehicle body main body side by a slide portion 224. In a state where the slide door 190 in FIG. 20 is being opened (close to full open), the pair of link arms 191 and 192 are standing upright in a substantially inverted V shape. In this state, the slide door 190 is slid rearward to be fully opened, whereby the pair of link arms 191 and 192 rotate forward with the front shaft 200 as a fulcrum, and stand substantially vertically. At this time, the slide block 201 moves to the front end side of the first guide hole 195,
The central shaft portion 197 moves to the front end side of the second guide hole 196.

Further, the slide door 19 is changed from the state shown in FIG.
As the 0 is slid forward and closed, the slide block 201 moves rearward along the first guide hole 195, and the pair of link arms 191 and 192 open in a substantially rectangular shape as shown by a chain line. At this time, the central shaft portion 197 moves backward in an arc shape along the second guide hole 196. The front link arm 191 rotates with the front shaft 200 as a fulcrum, and the central shaft 197 draws an arc-shaped trajectory along the second guide hole 196 accordingly.

The wire harness 193 has a curved portion 19 extending from the slide block 201 to the vehicle body.
3a, it is flexibly fixed to the vehicle body main body side, so that the pair of link arms 191 and 192 can be opened and closed (expanded or contracted) with the opening and closing of the slide door 190. When the slide door 190 is opened and closed, the curved portion 193a of the wire harness 193 does not substantially move with the slide block 201, and
Only 90 moves back and forth. Thus, the slide block 201 has moved relative to the slide door 190.

Since the pair of link arms 191 and 192 are engaged with the second guide holes 196 of the plate 194 at the center connecting portion 197, the slide door 190 is provided.
The pair of link arms 191 and 192 and the shaft portion 197 do not rub or hit the inner wall surface of the slide door 190 or other parts (not shown) due to the impact or vibration during the opening / closing operation of the vehicle or during traveling of the vehicle. The pair of link arms 191 and 192 do not rattle with each other,
This prevents the link arms 191, 192, the wire harness 193 on the link arm, and the slide door 190 from being damaged, generating abnormal noise, and the like.

In the fourth embodiment, each of the first and second guide holes 195 and 196 of the plate 194 is replaced with a guide rail (not shown) having each guide hole. It is also possible to fix directly to the plate 194. Also, wire harness 1
Instead of a plurality of electric wires, one electric wire or cabtire cable can be used as 93. Further, a slide engagement portion (not shown) for the second guide hole 192 may be provided near the connection portion of the front link arm 191 instead of the central shaft portion 197.

The structure of the guide hole 195 of the fourth embodiment (FIG. 20) can be used instead of the guide rail 3 of the first embodiment (FIG. 1). Further, the coil member 3 is provided on the curved portion of the wire harness in the first embodiment.
9 (FIG. 2) and a coil member 41 (FIG. 3)
Can be applied to the third and fourth embodiments described above, or a structure in which the wire harness is the cabtire cable 6 (FIG. 4). Further, the bar-shaped reinforcing member 174 of the third embodiment, in particular, of FIG.
The structure using the second guide hole 196 of the fourth embodiment
And the structure of the slide engagement portion 213 can be applied.

[0104]

As described above, according to the first and fifth aspects of the present invention, the slider is held at a substantially constant position by the curved portion of the wire harness when the slide door is opened and closed, and the slider is slightly advanced and retracted. In addition, the flexural deformation of the wire harness caused by the three-dimensional movement of the slide door is allowed, and the elasticity of the curved portion absorbs the tensile force and the compressive force of the wire harness during opening and closing operations. In this case, it is possible to easily cope with the curving opening and closing operation of the wire harness, and to prevent damage to the wire harness and tensile load on the connector. Further, since the wire length of the wire harness from the slider to the vehicle body side, that is, the wire length of the curved portion can be reduced, the electric transmission loss due to the long wire harness is reduced.

According to the second aspect of the present invention, since the wire harness hangs down from the harness support guide to the slider and the wire harness swings back and forth when the slide door is opened and closed, the depth of the slide door is reduced. It can be applied to thin sliding doors without taking dimensions.

According to the third aspect of the present invention, when the slide door is opened, the take-up reel correctively returns the slider to the home position, and assists the restoring action of the slider by the curved portion. As a result, a smooth restoring operation and a fixed position of the slider are promoted, and a fluttering of the wire harness is suppressed, so that a smooth swing can be achieved. In addition, the power supply device has a simple structure including the guide, the slider, the harness support, and the take-up reel, and the structure is simplified and compact.

According to the fourth aspect of the present invention, when the sliding door is opened and closed, the pair of link arms expand and contract (open and close) to assist the sliding operation of the slider. And the wire harness moves smoothly, and the positioning of the slider is promoted, and no excessive force is applied to the wire harness between the vehicle body and the slider, so that the wire harness is protected. Also,
Since the link arm supports the wire harness, rubbing of the wire harness at the time of opening and closing the slide door, and drooping and entanglement of the wire harness when the slide door is fully closed are prevented. Further, since the wire harness is bent integrally with the pair of link arms when the sliding door is opened and closed, the bending operation of the wire harness is performed smoothly and reliably. Further, the power supply device is configured with a simple structure including the guide portion, the slider, and the pair of link arms, and the structure is simplified and compact.

According to the sixth aspect of the present invention, the rotation (opening / closing operation) of the link arm and the sliding operation along the guide portion are simultaneously and smoothly performed by the shaft portion. In addition, the slider is smoothly moved by the shaft sliding in the guide hole. In addition, since the slider is supported at two points by the guide portion, the slider can be smoothly moved even when receiving the rotational power of the link arm.

According to the seventh aspect of the present invention, the curved portion of the wire harness is protected from interference with the outside by the coil member, the shape of the curved portion is maintained, and the orientation of the curved portion is corrected. Therefore, the function of the curved portion described in the effect of the first aspect is promoted. Also,
According to the eighth aspect of the present invention, since the bending direction is corrected at both ends of the bending portion, the operation of the bending portion is promoted as in the case of the seventh aspect.

According to the ninth aspect of the present invention, since the reinforcing member also serves as the guide portion, the cost of parts of the guide portion alone and the number of steps for assembling the slide door are reduced, and the structure of the slide door is simplified. Weight and weight reduction. According to the tenth aspect of the present invention, since the guide portion (guide hole) is formed on the same surface as the plate-like reinforcing material and does not protrude from the surface of the plate-like reinforcing material, the space is saved and the slide door is made thinner. Becomes possible. Further, since the link arm is in contact with the corrugated portion of the plate-like reinforcing material, the sliding resistance between the link arm and the slide door is reduced, and the opening and closing operation of the link arm is smoothed. Further, according to the eleventh aspect of the present invention, since the bar-shaped reinforcing member can be used as it is as the guide portion, processing of the guide hole and the like is unnecessary, and the cost can be further reduced. In addition, since the bar-shaped reinforcing material has excellent bending rigidity, there is little bending or the like, whereby the slider can be moved smoothly.

According to the twelfth aspect of the present invention, when the slide door is opened and closed, the slide engagement portion of the link arm slides along an arc-shaped locus along the second guide portion with the movement of the slider. . This prevents the pair of link arms from shaking, rattling and vibration, prevents interference with other parts on the slide door side, and prevents damage to the link arms, wire harness, other parts, etc. and generation of abnormal noise. Is done. This is the same during the running of the vehicle. According to the thirteenth aspect of the present invention, since the guide portion and the second guide portion do not protrude from the panel, it is possible to save space and reduce the thickness of the slide door. In addition, by punching and forming each guide hole in the inner panel of the slide door or a separate plate, the guide portion and the second guide portion can be formed easily and at low cost.

According to the fourteenth aspect of the present invention, the slide arm is provided at the connecting portion, which is the apex of the link arm having the largest deflection, so that the vibration of the link arm is reliably prevented. Further, since the connecting portion also serves as the slide engaging portion, the structure is simplified, and the number of parts and the cost of parts are reduced. According to the invention of claim 15, the periphery of the guide hole as the second guide portion is engaged between the pair of flanges, and the periphery of the guide hole is sandwiched between the pair of flanges. With such a position, it is possible to more reliably prevent the pair of link arms from wobbling and rattling. According to the sixteenth aspect of the present invention, by inserting the small-diameter flange portion from the insertion hole to the back side of the guide hole, the slide engagement portion including the pair of flange portions can be easily and reliably engaged with the guide hole. Can be combined. The flange portion on the small diameter side acts as a stopper for the slide engagement portion with respect to the guide hole, and allows the link arm to smoothly bend.

According to the seventeenth aspect of the present invention, the slide door can be made thinner by the plate-shaped guide rail as compared with the three-dimensional guide rail, and the processing of the guide hole is easy and the guide door is made easier. Rails are easy to handle. Further, as compared with a guide portion in which a guide hole is simply formed in a panel or a plate, it is less likely to be worn and is advantageous in strength. Further, according to the eighteenth aspect, since the pair of link arms are opened by their own weight, the restoring operation of the slide block is performed smoothly and reliably. According to the nineteenth aspect of the present invention, the work of wiring the wire harness to the slide door is facilitated by the flexibility and uniformity of the bending of the cabtire cable, and the number of circuits is increased due to the good flexibility. It is possible to handle many accessories, and the terminal processing for connector connection is also facilitated.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment (a structure using a slider) of a power supply structure for an automobile slide door according to the present invention.

FIG. 2 is a perspective view showing one embodiment of a bending portion of the wire harness.

FIG. 3 is a perspective view showing another embodiment of the bending portion of the wire harness.

FIG. 4 is a cross-sectional view showing a cabtire cable which is one form of a wire harness.

FIG. 5 is a front view showing a state when the slide door is closed.

FIG. 6 is a front view showing a state when a slide door is opened.

FIG. 7 is a plan view showing a state when the slide door is closed.

FIG. 8 is a plan view showing a state in which the slide door is being opened.

FIG. 9 is a plan view showing a state when the slide door is opened.

FIG. 10 is a perspective view showing a second embodiment (a structure using a link arm) of a power supply structure for an automobile slide door according to the present invention.

FIG. 11 is a partially cutaway side view showing an attached state of a link arm.

FIG. 12 is a front view showing an operation state of a link arm on a guide rail.

FIG. 13 is a partially cutaway plan view showing an attached state of a link arm.

FIG. 14 is a perspective view showing one embodiment of a bending portion of the wire harness.

FIG. 15 is a perspective view showing another embodiment of the bending portion of the wire harness.

FIG. 16 is a perspective view showing a third embodiment (a structure in which a reinforcing member is used as a guide portion) of a power supply structure for an automobile slide door according to the present invention.

FIG. 17 is an exploded perspective view showing an assembly structure of the slide block.

FIG. 18 is a perspective view showing another embodiment of a power supply structure of a sliding door for an automobile using a reinforcing member as a guide portion.

FIG. 19 is an exploded perspective view showing an assembly structure of the slide block.

FIG. 20 is a perspective view showing a fourth embodiment (a structure using a second guide portion) of a power supply structure for an automobile slide door according to the present invention.

FIG. 21 shows a connecting portion, ie, a slide engaging portion.
It is CC sectional drawing of.

FIG. 22 is a perspective view showing a conventional example.

23A and 23B show another conventional example, in which FIG. 23A is a cross-sectional view when the door is closed, and FIG. 23B is a cross-sectional view when the door is opened.

FIG. 24 shows another conventional example similar to FIG.
(a) is a cross-sectional view when the door is closed, and (b) is a cross-sectional view when the door is opened.

[Explanation of symbols]

1,127,172,190 Slide door 3,51 Guide rail (guide part) 4,56,128,173,201 Slide block (slider) 5 Take-up reel 6,54,141,141 ', 193 Wire harness 7 Guide Rollers (harness support guides) 17, 55, 130, 195 Guide holes (guide portions) 24, 68, 71, 202, 203 Shaft portions 38, 75, 141a, 193a Curved portions 39, 95, 40 to 41, 96 to 97 Coil springs (coil members) 52, 53, 125, 126, 125 ', 126'19
1,192 Link arm 129 Plate-like reinforcing material 174 Bar-like reinforcing material 194 Plate 197 Shaft (connecting part) 199 Inner panel 207 Insertion hole 208, 210 Flange

Claims (19)

[Claims] A slide door is provided with a guide portion in a sliding door opening / closing direction, a slider is slidably engaged with the guide portion, and a wire harness on a slide door side is fixed to the slider. A power supply structure for a slide door for an automobile, wherein a curved portion is formed in the wire harness between the two. 2. A slide door for an automobile according to claim 1, wherein a harness support guide is provided on the slide door above the guide portion, and the wire harness is suspended from the harness support guide to the slider. Power supply structure. 3. A take-up reel for urging the slider in a sliding door closing direction.
A power supply structure for an automobile slide door as described in the above. 4. A slide door is provided with a guide portion in a sliding door opening / closing direction, a slider is slidably engaged with the guide portion, and one end of a pair of linked link arms is connected to the slider. A power supply structure for a slide door for an automobile, wherein the other end of the pair of link arms is pivotally supported on the slide door side, and a wire harness is routed from the pair of link arms to the slider. 5. The power supply structure for an automobile slide door according to claim 4, wherein a curved portion is formed in the wire harness between the slider and the vehicle body. 6. The link arm according to claim 4, wherein one end side of the pair of link arms is connected to the slider by a shaft portion, and the shaft portion is slidably engaged with a guide hole of the guide portion. Power supply structure for automotive sliding doors. 7. The power supply structure for an automobile slide door according to claim 1, wherein a coil member is externally inserted into a curved portion of the wire harness. 8. A power supply structure for an automobile slide door according to claim 7, wherein said coil members are disposed at both ends of said curved portion. 9. The power supply structure for an automobile slide door according to claim 1, wherein said guide portion is made of a reinforcing material for said slide door. 10. The automobile slide according to claim 9, wherein the reinforcing member is a substantially corrugated plate-shaped reinforcing member, and a guide hole serving as the guide portion is formed in the plate-shaped reinforcing member. Door power supply structure. 11. The power supply structure for an automobile slide door according to claim 9, wherein the reinforcing member is a bar-shaped reinforcing member. 12. An arc-shaped second guide portion is provided on the slide door side, and a slide engagement portion of the pair of link arms is slidably engaged with the second guide portion. A power supply structure for an automobile slide door according to any one of claims 4 to 9. 13. The power supply structure for an automobile slide door according to claim 12, wherein each guide hole as said guide portion and said second guide portion is formed in an inner panel or a plate. 14. The power supply structure for a slide door for an automobile according to claim 12, wherein the slide engagement portion is provided at a connection portion between the pair of link arms. 15. The slide engaging portion includes a pair of opposed flange portions, and a peripheral edge of a guide hole as the second guide portion is engaged between the pair of flange portions. A power supply structure for an automobile slide door according to any one of claims 12 to 14. 16. One of the pair of flanges is formed to have a small diameter and a diameter larger than a guide hole serving as the second guide, and an insertion hole for the one flange is formed at an end of the guide hole. The power supply structure for a slide door for an automobile according to claim 15, wherein the power supply structure is provided in communication. 17. The power supply structure for an automobile slide door according to claim 1, wherein the guide portion is a long plate-shaped guide rail. 18. A power supply structure for an automobile slide door according to claim 4, wherein said pair of link arms are arranged upward with respect to said guide portion. 19. The power supply structure for an automobile slide door according to claim 1, wherein the wire harness is a cabtire cable.