JP3634259B2 - Power supply structure for vehicle sliding door - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a power feeding structure for feeding power to a door glass lifting motor or the like of a vehicle sliding door.
[0002]
[Prior art]
In recent years, with the expansion of the use of van type vehicles as RV vehicles, it has become necessary to supply power from the vehicle body side to the door glass elevating motor and limit switch provided on the slide door in order to automate the elevating and lowering of the door glass. Yes. Accordingly, a power feeding structure as shown in FIGS. 5 and 6 has been proposed (for example, Japanese Patent Application Laid-Open No. 11-348683). Here, FIG. 5 is a lower vertical sectional view of the vehicle sliding door D in an opened state, and FIG. 6 is a horizontal sectional view thereof. An inner panel of the sliding door D is bent in an L shape (FIG. 5). A stay 1 projects 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 coupled to the auxiliary plate 11 so as to be rotatable in a horizontal plane, and horizontal rollers 13 and 14 are provided at the ends of the leg portions 121 and 122 (FIG. 6) which are divided into two branches in a plan view. Thus, these horizontal rollers 13 and 14 are located in the lower guide rail 21 provided on the lower surface of the step panel 2 (FIG. 5). The central portion of the roller bracket 12 is bent downward, and the vertical roller 15 is supported here and is positioned on the body panel P. When the sliding door D is closed, the sliding door D is guided by the guide rail 21, moves forward of the vehicle (right side in FIG. 6), and then is drawn inward (downward in FIG. 6).
[0003]
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 (FIG. 5), and a slider 4 is provided at the opening thereof so as to be movable along the guide rail 3. A flat cable 41 extends from the front end of the slider 4 (the side facing the paper surface in FIG. 5). The flat cable 41 is folded upward in a U shape and reaches the rear end portion along the top wall of the guide rail 3. Input connection is made to the front end of the relay connector 42 provided here. A power supply line (not shown) extends from the rear end of the relay connector 42 to a door glass raising / lowering motor or the like in the slide door. A support member 7 is disposed between the slider 4 and the step panel 2. The support member 7 is formed by fixing metal terminals 72 and 73 having circular ring portions 721 and 731 to both ends of a flexible metal wire 71 that can be bent and deformed, and the circular ring portion 721 of the metal terminal 72 is attached to the support member 7. The circular ring portion 731 of the metal terminal 73 is rotatably fitted to the bolt 22 provided on the step panel 2 while being rotatably fitted to the bolt 61 provided on the slider 4. The power supply line 54 extending from the slider 4 to the vehicle body side is inserted into the tube 74 through the metal wire 71, crosses the vehicle body side, curves upward, passes through the step panel 2, and forms a wire harness (not shown). It is connected.
[0004]
In such a structure, when the slide door D moves from the open state to the closing direction in front of the vehicle, the slider 4 is pulled by the support member 7 even if the guide rail 3 moves forward (to the right in FIG. 6). As a result, the movement of the position is restricted, and the slider 4 moves relative to the guide rail 3. When the slide door D reaches the front end and is drawn to the closed position inside the vehicle, the support member 7 turns around the bolt 22 in the clockwise direction in FIG. In this case, the turning trajectory of the support member 7 and the movement trajectory of the slide door D do not necessarily coincide with each other, but the relative displacement between them is absorbed when the metal wire 71 of the support member 7 is appropriately curved and deformed.
[0005]
[Problems to be solved by the invention]
By the way, in the above-described conventional power feeding structure, the feeding wire 54 may be bent with a large curvature, particularly at the portion A in FIG. In this case, the power supply line 54 may be disconnected. Further, the power feeding structure has a problem that the metal terminal 72 and the mounting structure thereof are relatively complicated.
[0006]
Therefore, the present invention solves such a problem, and an object of the present invention is to provide a power supply structure for a sliding door for a vehicle that can prevent a power supply line from being disconnected with a simple structure.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a rail member (3) provided on the slide door (D) and extending in the door opening / closing direction and a slider provided on the rail member (3) so as to be relatively movable. In a power supply structure for a vehicle slide door, comprising: (8) and a power supply line (54) extending from the vehicle body side and extending to the electrical component in the slide door (D) via the slider (8). 8) A guide hole (84) through which the feeder line (54) is inserted is formed in the inside of the opening (841, 842) of the guide hole (84), and the feeder line (54) from the vehicle body side is inserted. The curvature of the opening (842) positioned on the opening side is larger than a predetermined value so that the opening inner wall surface (843, 844) positioned in the sliding direction of the slider (8) extends in the opening direction. Sly in radius Formed to be curved in the direction, the feed line with the door (54) so as to bend along the inner wall surface (843 and 844) when subjected to tension. In the second invention, a rail member (3) provided on the slide door (D) and extending in the door opening / closing direction, a slider (8) provided on the rail member (3) so as to be relatively movable, and the vehicle body side In the power supply structure for a vehicle sliding door, the rail member (3) has a U-shape, and includes a power supply line (54) extending from the slider (3) to an electrical component in the slide door (D). The opening edge is a flange portion (31) that bends inward, and the slider (3) is a block body that is movably fitted to the flange portion of the rail member (3) on its outer surface. A slide groove (871, 872) is formed, and a guide hole (84) through which the feed line (54) is inserted is formed therein, and the guide hole (84) is a rail at one end of the slider (3). Member (3 The inside of the slider (3) and the other end of the slider (3) open to the outside of the rail member (3). Of the two openings (841, 842) of the guide hole (84), the feed line from the vehicle body side The opening inner wall surfaces (843, 844) positioned in the sliding direction of the slider (8) of the opening (842) positioned on the side where the line (54) enters are predetermined so that the opening (842) widens in the opening direction. It is curved in the sliding direction with a radius of curvature equal to or greater than the value, and is curved along the inner wall surface (843, 844) of the opening when the power supply line (54) receives tension as the door is opened and closed.
[0008]
In the present invention, since the guide hole having the inner wall surface of the opening that is curved in the sliding direction with a radius of curvature greater than or equal to the predetermined curvature radius is formed in the slider and the feed line is inserted through the guide hole, The feeding line receiving the tension is curved along one or the other of the inner walls of the opening at the closed end or the open end of the door. As a result, the bending of the feeder line does not have an excessive curvature, which prevents the feeder line from being disconnected. In the present invention, by providing the guide portion on the slider, it is possible to prevent disconnection of the feeder line with a simple structure without using a conventional metal terminal.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a longitudinal sectional view of a guide rail 3 provided on the slide door. The cross-section of the guide rail 3 has a U-shape that opens downward as in the conventional structure, and the opening edge is a flange portion 31 that bends in a substantially right angle toward the inside. A slider 8 is provided at the opening of the guide rail 3 so as to be movable along the opening. A side view thereof is shown in FIG. 2, and an end view thereof is shown in FIG.
[0010]
The slider 8 is a block body in which thick plate materials 81 and 82 of substantially the same shape made of Teflon resin are overlapped and coupled with screws 831 and 832 at two locations on the plate surface. Concave grooves are formed symmetrically on the abutting surfaces of the plate members 81 and 82. When the plate members are abutted with each other, a guide hole 84 having a rectangular cross section penetrating the slider 8 is formed by the concave groove. The guide hole 84 opens at one end face of the slider 8 (reference numeral 841), and gently curves from the upper side to the lower side within the slider 8 and opens at the lower surface of the slider 8 (reference numeral 842). The width of the guide hole 84 is constant up to the vicinity of the top of the curve in a side view, and thereafter, the guide hole 84 is expanded in a trumpet shape downward. The guide hole 84 having such a shape has a curvature radius R1 when bending upward from the opening 841, a curvature radius R2 when bending downward from above, and left and right inner wall surfaces 843 when the opening 842 portion expands downward. The curvature radii R3 and R4 of 844 are both equal to or greater than a predetermined value.
[0011]
In the guide hole opening 842 of the slider 8, a through hole 85 having a gradually decreasing diameter is formed by the concave grooves of both plate members 81, 82, and the locking recess is formed by cutting out the end surface of the slider 8. 86 is open. In addition, rectangular slide grooves 871 and 872 having a constant width extending in parallel along the lower side are formed at the same position on the outer surfaces of both plate members 81 and 82.
[0012]
As shown in FIG. 1, the slider 8 is configured to be movable by fitting the slide grooves 871 and 872 on both sides into the opening edge flange portion 31 of the guide rail 3. As in the conventional structure, the power supply line 54 that is passed through the tube 74 and reaches from the vehicle body side is inserted into the guide hole 84 of the slider 8 and is folded back upward in the guide rail 3 into a U shape. It is connected to a connector 33 provided on the lower surface of the top wall 32 of the rail 3. In order to insert the power supply line 54 into the guide hole 84, the power supply line 54 is pushed into the concave groove of one plate 81 with the plate 81, 82 separated, and the other plate 82 is brought into contact with this. To do. At this time, the feeder 54 is positioned by being sandwiched between the two plate members 81 and 82. One end of the metal wire 71 is inserted into the through hole 85, and the metal ball 711 attached to the end engages with the locking recess 86. The power supply structure on the vehicle body side is the same as the conventional one.
[0013]
In such a structure, when the slide door is moved between the open state and the closed state, even if the guide rail 3 moves, the slider 8 is restricted from moving as shown in FIG. The slider 8 reaches the X position in FIGS. 1 and 4 at the door open end, and the slider 8 reaches the Y position at the door closed end. With such movement of the slider 8, the feed line 54 is curved along one inner wall surface 843 in the sliding direction of the guide hole opening 842 portion at the X position due to the tension from the vehicle body side, while at the Y position, the supply line 54 is fed. The electric wire 54 is curved along the other inner wall surface 844 in the sliding direction of the guide hole opening 842 portion. As described above, the curvature radius of the guide hole 84 other than the opening 842 and the curvature radius of the inner wall surfaces 843 and 844 of the opening are both larger than a predetermined value. Even if it is bent, it is not bent with an excessive curvature, and disconnection of the power supply line 54 is prevented in advance. As described above, according to the present embodiment, without using the conventional metal terminal 73, the guide hole 84 is formed in the slider 8, and the power supply line 54 is inserted through the guide hole 84. Can be prevented.
[0014]
【The invention's effect】
As described above, according to the power supply structure for a sliding door for a vehicle of the present invention, it is possible to effectively prevent disconnection of the power supply line and the like with a simple structure.
[Brief description of the drawings]
FIG. 1 is a vertical cross-sectional view of a guide rail showing an embodiment of the present invention.
FIG. 2 is a side view of a slider.
FIG. 3 is an end view of the slider.
FIG. 4 is a schematic front view of the sliding door when opened and closed.
FIG. 5 is a vertical sectional view of a sliding door portion having a conventional power feeding structure.
FIG. 6 is a horizontal sectional view of a sliding door portion provided with a conventional power feeding structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 3 ... Guide rail, 54 ... Feeding line, 8 ... Slider, 84 ... Guide hole, 842 ... Opening, 843, 844 ... Opening inner wall surface, D ... Sliding door.

Claims (2)

A rail member provided on the slide door and extending in the door opening / closing direction, a slider provided on the rail member so as to be relatively movable, and extending from the vehicle body side to the electrical components in the slide door via the slider In a power supply structure for a vehicle sliding door comprising a power supply line, a guide hole for inserting the power supply line is formed in the slider, and the power supply line from the vehicle body side of both openings of the guide hole is Forming an opening inner wall surface located in the sliding direction of the slider of the opening located on the incoming line side so as to bend in the sliding direction with a radius of curvature of a predetermined value or more so that the opening widens in the opening direction ; A power supply structure for a sliding door for a vehicle, wherein the power supply line is bent along the inner wall surface when the power supply line receives tension as the door is opened and closed . A rail member provided on the slide door and extending in the door opening / closing direction, a slider provided on the rail member so as to be relatively movable, and extending from the vehicle body side to the electrical components in the slide door via the slider In the power supply structure for a vehicle sliding door comprising a power supply line, the rail member is U-shaped and the opening edge thereof is a flange portion bent inward, and the slider is a block body, A slide groove that is movably fitted to the flange portion of the rail member is formed on the outer side surface, and a guide hole for inserting the power feed line is formed therein, and the guide hole is one end portion of the slider. At the other end of the slider and at the other end of the slider. Among them, the curvature of a predetermined value or more so that the inner wall surface of the opening located in the sliding direction of the slider of the opening located on the side where the feeding line from the vehicle body side enters is widened in the opening direction. A power supply structure for a sliding door for a vehicle, wherein the power supply structure is curved in a sliding direction with a radius, and is curved along the inner wall surface of the opening when the power supply line receives tension as the door is opened and closed.

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