JP3521782B2 - Power supply structure of sliding door for vehicle - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a power supply structure for supplying power to a door glass lifting motor of a slide door for a vehicle.

[0002]

2. Description of the Related Art In recent years, as the use of van type vehicles as RV vehicles has expanded, power is supplied from the vehicle body side to a door glass lifting motor, limit switch, etc. provided on a sliding door in order to automate the lifting and lowering of the door glass. The need has arisen. Therefore, for example, Japanese Patent Application Laid-Open No. 10-936 proposes a power feeding structure as shown in FIG. That is, in FIG. 16, the body panel P forming the lower edge of the side surface opening of the vehicle body is provided with the lower guide rail 81 that curves and extends in the vehicle front-rear direction (left-right direction in the drawing), and the sliding door D The guide roller 83 provided at the tip of the stay 82 extending from the rear surface of the front end portion is located inside the lower guide rail 81, and is guided to open and close the slide door D in the left-right direction in the drawing.

An L metal fitting 84 protruding from the tip of the stay 82
A flexible flat cable (hereinafter referred to as a flat cable) 85 is disposed between the vertical wall portion P1 of the body panel P and the vertical wall portion P1 of the body panel P. When 82 moves to the X position or the Y position, the flat cable 85 follows the movement and is freely curved and deformed as shown by the chain line in the figure. Electric power is supplied to the slide door D from the body side through the stay 82 by such a flat cable 85.

[0004]

However, in the power feeding structure described in the above publication, the flat cable 85 that bends and deforms.
Need to be provided on the body side, it is necessary to secure a storage space for the flat cable 85 in the body panel P, or to provide a cover on the body panel P to shield the flat cable 85 from muddy water. However, there is a problem that it becomes complicated and the cost is significantly increased.

Therefore, the present invention solves such a problem, and an object thereof is to provide a power supply structure for a sliding door for a vehicle, which does not cause a significant increase in cost due to the complicated shape of the body panel. And

[0006]

In order to achieve the above object, in the invention according to claim 1, the vehicle body (2) is installed.
Guided by the guided guide rail (21)
For vehicles to supply power to the sliding door (D) that opens and closes at
A power supply structure for a slide door , the slide door (D)
(3) provided on the base and extending in the door opening / closing direction
Inside the slide door (D), the slider (4) held by the guide member (3) so as to be relatively movable, and the slider (4) extending from the vehicle body (2) side. Power supply lines (51, 53, 54) to the electric components of (1) and the slider (4)
A first support member (71) which is elastically bendable and has one end connected to the vehicle body (2) and the other end connected to the vehicle body (2) to support the power supply line (54) , and the slide door (D).
Of the first support member (71) along with the opening and closing of the
Changes in the relative distance between the fixed point and the slider-side fixed point, the first
It is absorbed by the curved deformation of the support member (71). Such a first support member is realized by using, for example, a metal wire, and a power supply line is routed along the wire.

In the present invention, when the slide door is opened and closed, the slider maintains its original position while moving relatively along the guide member. Therefore, when the slide door is opened and closed, the relative position between the vehicle body and the slider does not change, and only the relative position between the slider and the electric component on the slide door side changes. Therefore, a flat cable or the like may be provided on the slide door side so as to connect the slider and the electric component, and as in the conventional example in which the flat cable is provided on the body side, a storage space for the flat cable is secured in the body panel. It is not necessary to provide a cover for shielding the flat cable from muddy water or the like, and it is possible to avoid a complicated panel structure and a significant increase in cost. The sliding door is pulled inward at the closing movement end of the vehicle, and the relative distance between the vehicle body and the slider changes accordingly. In this case, the support member bends and deforms to absorb the change in the relative distance between the two. .

According to a second aspect of the invention, in addition to the configuration of the first aspect of the invention, the feed line (54) is provided with the first line.
Of the power supply line (54) at a proper distance from the support member (71) of the first support member (71) with its longitudinal movement restricted. in pivotally formation around the axis of the first support member (71)
Power supply line (5
Between the vehicle body side fixed point and the slider side fixed point of 4)
Distance and fixed point on the vehicle body side of the first support member (71)
Change in the distance between the slider and the fixed point on the slider side
(54) swivels around the axis of the first support member (71)
Absorb by

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, in the case where the feeder side and the slider side fixing points of the first supporting member are displaced from each other in the horizontal direction, As a result, the distance between the vehicle body side fixing point and the slider side fixing point of the power supply line as the slide door is opened and closed, and the distance between the vehicle body side fixing point and the slider side fixing point of the first support member are Even if the difference in distance changes
The power supply line is absorbed by appropriately turning around the axis of the first support member, and the disconnection of the power supply line is prevented.

According to a third aspect of the present invention, in addition to the structure of the first aspect of the invention, the first support member (71) is provided along the power supply line (54) and the slider (4) The rod-shaped second support member (94) is extended to connect the power supply line (54) to the second support member (94).
Are placed at a predetermined distance from the power supply line (5
4) and the first support member (71) are rotatably connected to the second support member (94) around the axis of the second support member (94) while restricting the axial movement thereof . Slide
(A) The power supply line (54) and the first support that accompanies the opening and closing of (D).
A slider-side fixing point of the holding member (71) and a second support member
The change in the distance between the coupling parts to (94)
And the first support member (71) is replaced by the second support member (9
It absorbs by turning around the axis of 4).

According to a third aspect of the invention, in addition to the effects of the first aspect of the invention, a power supply line and a first line are provided.
When the slider-side fixing points of the supporting member and the second supporting member are displaced from each other in the horizontal direction, the feeder line and the slider-side fixing point of the first supporting member and the second supporting member are thereby moved as the sliding door opens and closes. Even if the distance between the attachment portions to the member changes, the power supply line and the first support member are absorbed by appropriately turning around the axis of the second support member, and the disconnection of the power supply line is prevented.

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

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 is a vertical sectional view of a lower portion of a vehicle sliding door D provided with a power feeding structure of the present invention in an open state, and FIG. 2 is a horizontal sectional view thereof. Indicates. On the inner panel of the slide door D, a stay 1 bent in an L shape (FIG. 1) is provided so as to project toward the body panel P, and a roller bracket 12 is attached to the tip of the stay 1 via an auxiliary plate 11. ing. The roller bracket 12 is rotatably connected to the auxiliary plate 11 in a horizontal plane, and the leg portions 121 and 122 are bifurcated in a plan view.
Horizontal rollers 13 and 14 are respectively provided at the tips of (FIG. 2), and these horizontal rollers 13 and 14 are provided on the lower surface of the step panel 2 (FIG. 1) Lower guide rail 2
Located within 1. The central portion of the roller bracket 12 is bent downward, and the vertical roller 15 is supported by the central portion of the roller bracket 12 and is positioned on the body panel P. When the slide door D is closed, it is guided by the guide rails 21 and is in front of the vehicle (see FIG. 2).
After moving to the right), the vehicle is pulled inward (downward in FIG. 2).

A guide rail 3 is provided on the inner panel of the slide door D in the door opening / closing direction. The guide rail 3 has a U-shaped cross section that opens downward, and a slider 4 whose details will be described later is provided in the opening. FIG. 3 shows a vertical cross section of the guide rail 3. A flat cable 51 extends from the front end (right end in the figure) of a connector 41 provided on the slider 4, and the flat cable 51 is folded back in a U-shape. Then, it reaches the rear end along the top wall of the guide rail 3 and is input-connected to the front end of the relay connector 52 provided here. From the rear end of the relay connector 52 to the door glass lifting motor in the slide door, the power supply line 5
3 is extended.

The detailed structure of the slider 4 will be described below with reference to FIGS. Note that FIG. 4 shows the slider 4
5 is a side view of FIG. 5, FIG. 5 is a view of the slider 4 located in the guide rail 3 as seen from the direction A in FIG. 4, and FIG. 6 is an exploded perspective view of the slider 4. The slider 4 has a first base plate 42 and a second base plate 43 located above and below, and the first base plate 42 is formed into an L shape in a side view (FIG. 4), while the second base plate 42 is formed.
The base plates 43 are U-shaped in a side view and are abutted against each other. The above-mentioned connector 4 is provided on the first base plate 42.
1 is placed, and the upper surface of the half of the connector 41 is held by the pressing plate 44. This restraining plate 44 is L
An end portion 441 bent downward in a V shape is fixed to the base plate 42 by a bolt 61 and a nut 62.

The bolt 61 penetrates the second base plate 43 and the first base plate 42 from below, and one end of the support member 7 which will be described in detail later has a second base plate 4 in the bolt 61.
A guide roller 45, which is coupled along the lower surface of the base plate 3 and is located between the base plates 42 and 43, is rotatably mounted via resin long plate spacers 47 and 48. Between the connector 41 and the first base plate 42, a long plate-shaped spring plate spacer 49 having a short side curved in an arc shape.
(FIG. 6) is located, and the head is formed with a recess 41 on the lower surface of the connector 41.
The bolt 63 located in the first part is attached to the spacer 49 and the first part.
A nut 64 is coupled to the tip of the base plate 42 and the second base plate 43 so as to penetrate from above. A guide roller 46 located between the base plates 42 and 43 is rotatably attached to the bolt 63 via the spacers 47 and 48. Circular convex portion 4 on the lower surface of the connector 41
12 penetrates the hole 491 (FIG. 6) of the spacer 49 and is inserted into the hole 421 of the first base plate 42,
With this and the bolt 63, the spacer 49 is connected to the connector 4
Positioned along line 1. Such a slider 4
As shown in FIG. 5, the guide rollers 45 and 46 (only one of which is shown) are positioned at the opening of the guide rail 3 and are movable along the guide rail 3.

The support member 7 has circular ring portions 721 and 731 at both ends of a flexible metal wire 71 which can be curved and deformed.
The metal-made terminals 72, 73 having a large diameter portion 611 in which the circular ring portion 721 is close to the head of the bolt 61.
The circular ring portion 7 is rotatably fitted around the outer circumference.
As shown in FIG. 1, 31 is mounted and coupled to a bolt 22 provided on the step panel 2. The bolt 22 is erected on a bracket 23 provided on the step panel 2, and the circular ring portion 731 is mounted immediately below the head of the bolt 22, and a coil spring 24 is arranged on the outer periphery of the bolt 22 below the bolt. Has been done. The upper end 241 of the coil spring 24 is locked to the linear end 732 of the metal terminal 73 to urge the metal terminal 73 to rotate clockwise in FIG. 2, that is, inward of the vehicle. As a result, the support member 7 is moved when the door is moved inward at the final stage of closing the slide door D, which will be described later.
The follow-up mobility of is improved.

The feeder line 54 extending from the connector 41 of the slider 4 to the vehicle body side is, as shown in FIGS. 1 and 6, the tube 7 attached to the metal wire 71 of the supporting member 7.
4 is passed through to the vehicle body side, and is connected to a wire harness (not shown) on the vehicle body side.

In such a power feeding structure, when the slide door D moves from the open state to the front closing direction of the vehicle,
With the forward movement of the guide rail 3 (from the solid line to the chain line in FIG. 3), the slider 4 moves relative to the guide rail 3 so as to stop at that position, and the flat cable 51 bends in the guide rail 3 into a deep U-shape. It deforms (solid line to chain line in FIG. 7). When the slide door D reaches the front end and is pulled toward the closed position inside the vehicle, the support member 7 turns around the bolt 22 in the clockwise direction (the arrow in the figure) from the solid line position in FIG. 2 to the chain line position. In this case, the turning locus of the support member 7 and the movement locus of the slide door D do not necessarily match, but the relative displacement between the two is absorbed by the metal wire 71 of the support member 7 being appropriately curved and deformed.

(Second Embodiment) FIG. 8 shows a slide door D.
The positional relationship between the power supply line 54 and the metal wire 71 associated with the opening and closing of is shown. In FIG. 8, the distance d1 between the vehicle body side fixed point P1 and the slider 4 side fixed point P2 of the power supply line 54 and the distance d2 between the vehicle side fixed point P1 and the slider side fixed point P3 of the metal wire 71 are the slide door. When D is open (solid line in the figure), d1> d2, whereas when D is closed (chain line in the figure), d1 <d2. This is because the slider-side fixing points P2 and P3 of the power supply line 54 and the metal wire 71 are displaced from each other in the horizontal direction as shown in the figure. For this reason, when the power supply line 54 and the metal wire 71 are coupled so as not to be relatively displaced, the power supply line 5 is often used.
There is a risk that the wire will be twisted and the wire will break due to long-term use.

Therefore, in the present embodiment, as shown in FIG. 9, a plurality of power supply lines 54 extending from the slider 4 side to the vehicle body side are passed through the corrugated tube 75, and the corrugated tube 75 is fixed to the metal wire 71. The corrugated tubes 75 are arranged at intervals, and a plurality of positions (only one position is shown in FIG. 9) in the longitudinal direction of the corrugated tube 75 are connected to the metal wires 71 by suspenders 91. As shown in FIG. 9, the end of the corrugated tube 75 on the slider 4 side is largely slackened downward from its shortest locus m. In actuality, as shown in FIG. 10, the corrugated tube 75 is formed with a large number of annular grooves 751 at equal intervals in the longitudinal direction on the outer periphery thereof in order to enable smooth curved deformation.

FIG. 10 shows the external appearance of the above-mentioned hanging device 91, and FIG. 11 shows its exploded perspective view. The suspender 91 is a substantially triangular plate-like body having a smooth outer periphery, a through hole 911 having a diameter slightly larger than the outer diameter of the metal wire 71 is formed in the upper half portion thereof, and the corrugated tube is formed in the lower half portion thereof. A large-diameter through hole 912 that is slightly larger than the outer diameter of 75 is formed. The hanging tool 91 inserts the metal wire 71 into the through hole 911 and is attached thereto, and the metal ring 92 is caulked and fixed to the metal wires 71 before and after the through hole 911 to position the hanging tool 91 in the longitudinal direction. . On the other hand, the through hole 912 of the suspender 91
The corrugated tube 7 in which the power supply line 54 is housed
5 is inserted, and C is provided in the annular groove 751 located on the outer circumference of the corrugated tube 75 and located in front of and behind the suspender 91.
A ring 93 is attached (FIG. 11) to regulate the longitudinal movement of the corrugated tube 75. As a result, the corrugated tube 75 accommodating the power supply line 54 can freely swivel around the axis of the metal wire 71 in a state where movement in the longitudinal direction is restricted.

According to such a structure, even if the difference between the distances d1 and d2 changes as the slide door D is opened and closed as described above, the difference between the distances d1 and d2 changes in the corrugated tube 75. It is absorbed by the expansion and contraction of the slack portion, and is also absorbed by the corrugated tube 75 appropriately turning around the metal wire 71 as shown in FIG. This prevents disconnection of the power supply line 54. Although it is not always necessary to loosen the end of the corrugated tube 75 on the slider 4 side, it is possible to prevent the power supply line 54 from being twisted and to prevent the disconnection more reliably by providing the slack. it can.

(Third Embodiment) FIG. 12 shows another structure for preventing disconnection of the power supply line 54. In FIG. 12, the metal wire 71 is inserted into the corrugated tube 75 together with the power supply line 54, and the end of the corrugated tube 75 on the slider 4 side is slackened largely downward from the shortest track m thereof. The end portion of the metal wire 71 is directly fixed to the slider 4, which supports the power supply line 54 and also withstands the load even when the occupant's foot or the like is caught in the slack portion and protects the power supply line 54. .

In FIG. 12, the support rod 94 extends horizontally from the circular ring portion 721 of the metal terminal 72 provided on the slider 4 having the same structure as described in the first embodiment, and the tip of the support rod 94 is extended. A hanging tool 95 having the same structure as that described in the second embodiment is attached to the. As shown in FIG. 13, the suspending tool 95 is inserted into a through hole 951 formed in the upper half of the support rod 94 and attached thereto, and a metal ring 96 is caulked before and after the support rod 94 to longitudinal direction. It is positioned at. In the through hole (not shown) formed in the lower half of the suspender 95, the vicinity of the bending start point of the corrugated tube 75 accommodating the power supply line 54 is inserted so that the corrugated tube 75 is fixed to the support rod 94. Along with the gaps (FIG. 12), the C-ring 97 is mounted in the annular groove 751 on the outer circumference of the corrugated tube 75 located in front of and behind the hanger 95 (FIG. 13). Movement is restricted. As a result, the corrugated tube 75 accommodating the power supply line 54 can freely rotate around the axis of the support rod 94 in a state where movement in the longitudinal direction is restricted.

According to such a structure, the slide door D
The metal wire 71 (that is, the power supply line 54) accompanying the opening and closing of the
Even if the distance between the slider-side fixing point P4 and the hanger 95 changes, this change in distance is absorbed by the expansion and contraction of the slack portion of the corrugated tube 75, and as shown in FIG. It is absorbed by appropriately turning around the axis of 94, and the disconnection of the power supply line 54 is reliably prevented. Although it is not always necessary to loosen the end of the corrugated tube 75 on the slider 4 side, it is possible to prevent the power supply line 54 from being twisted and to prevent the disconnection more reliably by providing the slack. it can.

(Fourth Embodiment) In the power feeding structure described in the second embodiment, as shown by the chain line in FIG. 15, the loosened end of the corrugated tube 75 on the slider 4 side is covered with a rubber cover 97. Corrugated tube 7
The problem that an occupant's foot is caught in the slack portion of No. 5 is solved.

In the second to fourth embodiments described above, it is not always necessary to use a corrugated tube, and a flexible wiring pipe having a plurality of feed lines inserted therein may be rotatably connected to a metal wire or a support rod. Good. Furthermore, the power supply line does not necessarily have to be placed in the conduit.

[0029]

As described above, according to the power supply structure for a sliding door for a vehicle of the present invention, the shape of the body panel does not become complicated, so a large increase in cost can be avoided.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a vehicle sliding door including a power feeding structure according to a first embodiment of the present invention.

FIG. 2 is a horizontal sectional view of a vehicle sliding door having a power feeding structure.

FIG. 3 is a vertical sectional view of a guide rail provided on a slide door.

FIG. 4 is a side view of a slider.

5 is a front view of the slider positioned in the guide rail, and is a view taken in the direction of arrow A in FIG.

FIG. 6 is an exploded perspective view of a slider.

FIG. 7 is a schematic front view of the slide door when opening and closing.

FIG. 8 is a schematic horizontal sectional view of a slide door according to a second embodiment of the present invention.

FIG. 9 is an enlarged side view showing the slider side end of the power feeding structure.

FIG. 10 is a perspective view of a suspender installation unit.

FIG. 11 is an exploded perspective view of a suspender.

FIG. 12 is an enlarged side view showing a slider side end portion of a power feeding structure according to a third embodiment of the present invention.

FIG. 13 is a perspective view of a suspender installation unit.

FIG. 14 is a schematic horizontal sectional view of a slide door according to a second embodiment of the present invention.

FIG. 15 is an enlarged side view showing an end portion on the slider side of a power feeding structure according to a fourth embodiment of the present invention.

FIG. 16 is a horizontal sectional view of a vehicle sliding door provided with a conventional power feeding structure.

[Explanation of symbols]

2 ... Step panel, 3 ... Guide rail, 4 ... Slider, 51 ... Flat cable, 53, 54 ... Power supply line, 7
... Supporting member, 71 ... Metal wire, 91, 95 ... Hanging tool,
94 ... Support rod, D ... Sliding door.

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B60R 16/02 620 B60J 5/06

Claims (3)

(57) [Claims] 1. A guide rail provided on a vehicle body.
Power is supplied to the slide door that is opened and opens and closes in a predetermined path.
And a guide member provided on the slide door and extending in the door opening and closing direction , a slider movably held by the guide member, and a vehicle body side. A power supply line extending from the power supply line to the electric component in the slide door via the slider, and one end of the slider and the other end of the vehicle body are coupled to support the power supply line, and the elastic line is curved. It is equipped with a deformable first support member, and is associated with the opening and closing of the slide door.
Fixing point of the first support member on the vehicle body side and fixing on the slider side
Changes in the relative distance between points, varying the curvature of the first support member
A power supply structure for a vehicle sliding door that absorbs energy depending on the shape . 2. The power supply line is arranged at a predetermined interval with respect to the first support member, and an appropriate position in the longitudinal direction of the power supply line is moved in the longitudinal direction on the first support member. In the regulated state, the first support member is pivotally connected about the axis , and the vehicle cable of the power supply line is opened and closed when the slide door is opened and closed.
The distance between the data-side fixed point and the slider-side fixed point, first
Vehicle body side fixed point and slider side fixed point of the support member of
Axial distance of change in the difference, the feed line is a first support member between the
The power supply structure for the vehicle slide door according to claim 1, wherein the power supply structure is absorbed by being turned around . 3. The first support member is provided along the power supply line, and a rod-shaped second support member is extended from the slider so that the power supply line is predetermined with respect to the second support member. Are arranged with a space therebetween, and the power supply line and the first support member are pivotally coupled to the second support member about the axis of the second support member in a state in which the movement in the axial direction thereof is restricted , Su
The power supply line and the first support member accompanying opening and closing of the ride door
Between the slider-side fixing point and the connecting portion to the second supporting member.
The power supply line and the first support member support the second change in the separation.
It absorbs by turning around the axis of the member.
The power supply structure for a vehicle slide door according to claim 1.