JP4205611B2 - Power supply device for sliding door - Google Patents

Description

    The present invention relates to a sliding door power supply device for constantly supplying power and transmitting signals to a device in a sliding door from a vehicle body side of an automobile.

  Sliding doors are used in one-box cars and wagon cars. In order to operate the equipment in the sliding door (power window motor, switch, speaker, etc.), the equipment on the vehicle body (power supply, control device, etc.) and the equipment in the sliding door are always connected regardless of whether the sliding door is opened or closed. Must be electrically connected. Such a constant connection function is required for the sliding door power supply device.

  Conventionally, as this kind of power supply device for a sliding door, a linear slide rail is attached to the sliding door in the door opening / closing direction, a slider is mounted on the sliding rail, and a flexible space is provided between the slider and a predetermined portion on the vehicle body side. A tube is passed, a plurality of round electric wires are accommodated in the flexible tube, a flat cable is accommodated in a U-turn in the slide rail, and the flat cable and the round electric wire are connected on a slider. Is known (see Patent Document 1).

Japanese Patent Laid-Open No. 11-342807

  A conventional power supply device for a sliding door has a structure in which a flexible tube is swung back and forth in a substantially horizontal plane around a support point on the vehicle body side when opening and closing the slide door. It is necessary to secure a space enough to swing the flexible tube. If this space is not sufficient, the flexible tube tends to come into contact with the vehicle body and the door. Further, when the sliding door is closed, the flexible tube is kept bent in a substantially horizontal plane, so that the flexible tube resonates up and down due to the vibration of the automobile, and easily comes into contact with the vehicle body and the door. When the flexible tube comes into contact with the vehicle body or the door, noise or damage may occur. In addition, since the flexible tube is easy to see from the inside of the vehicle, there is also a drawback that it is not good in appearance.

  The object of the present invention is that there is no need to provide a space for accommodating the bent portion of the flexible tube between the vehicle body and the slide door, and there is a possibility that noise or damage may occur due to the flexible tube contacting the vehicle body or the slide door. It is to provide a power supply device for a sliding door with a small number.

In order to achieve this object, the present invention provides a slide rail attached to a slide door, a slider slidably attached to the slide rail, one end side supported by the slider, and the other end side supported at a predetermined position of the vehicle body. In a sliding door power supply device comprising a flexible tube, and a wiring material passing through the flexible tube from the vehicle body side to the slider,
The slide rail, the front end side in a direction of closing the slide door they become horizontal or substantially horizontal, Ri Do from those of the rear end side is one that is bent so as to gradually displaced upward from the horizontal level, the sliding door When the slider is opened, the slider becomes almost the same height as the flexible tube support member on the vehicle body side, and the flexible tube extends.When the slide door is closed, the slider can be lifted by the slide rail. A flexible tube is drawn into the slide door, and the slider is attached to the slide rail so that a portion supporting one end side of the flexible tube faces the vehicle body side. The fixed support member that supports the other end of the tube is fixed to the vehicle body so that the portion that supports the other end of the flexible tube faces the slide door, and the flexible tube is a flat corrugated tube. The long diameter direction of the cross section faces the opening / closing direction of the slide door, one end side thereof is fixedly supported by the slider, the other end side is fixedly supported by the fixed support member, and the wiring material passing through the flexible tube is flat. This flat cable has a width direction of the flat tube in the major axis direction of the flexible tube, and a U-turn box is integrally provided along the slide rail. The U-turn box has a slider and a slide door. The flat cable connecting the predetermined position is accommodated with a U-turn portion provided in the middle.

  In the sliding door power supply device of the present invention, it is preferable that the flat cable in the U-turn box and the flat cable in the flexible tube are a continuous one having no connection part on the way.

  Furthermore, the power supply device for a sliding door according to the present invention is preferably such that a flexible tube support member on the vehicle body side is installed under the step.

  According to the present invention, since the flexible tube is drawn into the slide door when the slide door is closed, it is necessary to provide a space for accommodating the bent portion of the flexible tube between the vehicle body and the slide door. Disappears. Further, since the flexible tube is lifted by the slider when the slide door is closed, there is no possibility of resonance even if the vehicle body vibrates up and down. For this reason, the flexible tube does not contact the vehicle body or the sliding door to generate noise or be damaged. Also, if the flexible tube support member on the vehicle body side is installed under the step, the flexible tube and its support member will be difficult to see from inside the vehicle, and the slide rail and slider will also be hidden behind the door trim and difficult to see from inside the vehicle. , There is an advantage that aesthetics are improved.

Embodiment 1 FIGS. 1 to 4 show an embodiment of the present invention. In the figure, 10 is a slide door, 10a is a door trim, 12 is a vehicle body (floor portion), 14 is a slide rail attached to the lower part of the slide door 10, and 16 is a slider slidably attached to the slide rail 14. , 18 is a flexible tube whose one end is fixedly supported by the slider 16, 20 is a fixed support member which is installed at a predetermined position of the vehicle body 12 and fixedly supports the other end of the flexible tube 18, and 22A is a flexible tube 18. This is a flat cable that passes through the slider 12 from the vehicle body 12 side. As shown in the figure, the slider 16 is attached to the slide rail 14 so that a portion for fixing and supporting one end of the flexible tube 18 faces the vehicle body 12 side.

  The slide rail 14 is bent so that the front end side in the direction of closing the slide door 10 is horizontal, and the rear end side is gradually displaced upward from the horizontal level. The slide rail 14 is attached to the slide door 10 on the back side of the door trim 10a so that the horizontal portion on the front end side is substantially the same height as the lower end edge of the door trim 10a.

The fixed support member 20 is substantially the same as the horizontal portion of the front end side of the slide rail 14 when the portion supporting the other end of the flexible tube 18 is directed toward the slide door 10 and the slide door 10 is opened as shown. It is fixed to the vehicle body 12 so as to face each other at a height. The length of the flexible tube 18 between the fixed support member 20 and the slider 16 is set so as to extend almost without slack when the slide door 10 is opened (see FIG. 2B). . Further, the height of the rear end portion of the slide rail 14 is such that when the slide door 10 is closed, the slider 16 is lifted by the slide rail 14 and the flexible tube 18 having the above length is drawn into the back side of the door trim 10a. It has been set (see FIG. 2A). The fixed support member 20 is installed under the step 23 so as not to be seen from inside the vehicle.

  As shown in FIG. 3, the flexible tube 18 is formed of a flat corrugated tube, and is arranged so that the major axis direction of the cross section faces the opening / closing direction of the slide door. For this reason, the flexible tube 18 is easy to bend in the vertical direction, and is difficult to bend in the opening / closing direction of the slide door (high rigidity). The flat cable 22 </ b> A passing through the flexible tube 18 is accommodated so that the width direction thereof faces the major axis direction of the flexible tube 18.

  A U-turn box 24 is integrally formed on the back side of the slide rail 14. The U-turn box 24 accommodates a flat cable 22B that connects the slider 16 and a connector 26 installed at a predetermined position in the slide door 10 with a U-turn portion 22u provided in the middle. In the illustrated example, the connector 26 is installed on the U-turn box 24, but may be installed at a position away from the U-turn box 24.

  The flat cable 22A extending from the vehicle body 12 to the slider 16 and the flat cable 22B extending from the slider 16 through the U-turn box 24 to the connector 26 may be connected within the slider 16, but the slider 16 may be disconnected. It is preferable that the continuous one pass. For this purpose, the flat cable may be bent in the slider 16 to change the direction. This has the advantage that reliability can be improved and costs can be reduced by reducing the number of flat cable connections.

  A connector 28 is attached to the end of the flat cable 22A on the vehicle body 12 side, and this connector 28 is connected to a connector 32 of a wire harness 30 routed in the vehicle body 12. A connector 36 of a wire harness 34 routed in the slide door 10 is connected to the connector 26 attached to the end of the flat cable 22B on the slide door 10 side.

  When the slide door 10 is closed, the slide door power supply device is configured such that the slider 16 comes to the rear end side of the slide rail 14 as shown in FIGS. 1, 2A, and 4A. Since the flexible tube 18 is at a position higher than the fixed support member 20, the flexible tube 18 is pulled to the back side of the door trim 10a. When the slide door 10 is opened from this state, the slide door 10 and the slide rail 14 move toward the rear of the vehicle body while being separated from the vehicle body 12 as indicated by an arrow H in FIG. At this time, the slider 16 is guided by the moving slide rail 14 and gradually descends because the flexible tube 18 having a large rigidity in the sliding door opening / closing direction restricts the movement of the sliding door 10 in the opening direction. Go. When the slide door 10 is farthest from the vehicle body 12, the slider 16 enters the horizontal portion of the slide rail 14, and the slide rail 14 becomes substantially the same height as the fixed support member 20 as shown in FIG. The tube 18 extends to a state where there is almost no slack. Thereafter, the state of FIG. 2B is maintained until the sliding door 10 is fully opened. When the slide rail 14 moves rearward along with the slide door 10 in the U-turn box 24, the U-turn portion 22u of the flat cable is pushed by the slider 16 as shown in FIG. Move to the side.

  When the slide door 10 is closed from the fully open state, the operation returns to the state shown in FIGS. 1 and 2A through the reverse operation to the above, and the flexible tube 18 is pulled up to the back side of the door trim 10a.

  Embodiment 2 FIGS. 5 and 6 show another embodiment of the present invention. 5 and 6, the same reference numerals are given to the same or corresponding parts as those in FIGS. 1 to 4. This power supply device for a sliding door is provided with a U-turn box 24 that accommodates a U-turn portion 22u of a flat cable 22B on a slide rail 14 that is integrated with the slide rail 14. The slider 16 rises on the front surface of the slide rail 14 and is formed so that the upper end thereof is located in the U-turn box 24. The flat cable 22A is bent in the slider 16 to change its direction, and is connected to the flat cable 22B in the U-turn box 24 without connection. When the U-turn box 24 is provided on the slide rail 14 in this way, the thickness of the slide rail 14 can be reduced, so that it is easy to secure a retracting space for the flexible tube 18 on the back side of the door trim 10a. Since the configuration and operation other than those described above are the same as those in the first embodiment, description thereof will be omitted.

The perspective view which shows one Embodiment of the electric power feeder for sliding doors which concerns on this invention. (A) is sectional drawing which shows a state when the sliding door of the apparatus of FIG. 1 is closed, (B) is sectional drawing which shows a state when it similarly opens. The perspective view which shows the assembly state of the slide rail of the apparatus of FIG. 1, a slider, a flexible tube, and a flat cable. (A) is sectional drawing which shows the inside of U-turn box when the sliding door of the apparatus of FIG. 1 is closed, (B) is sectional drawing which shows the inside of U-turn box when a sliding door opens. The other embodiment of the electric power feeder for sliding doors which concerns on this invention is shown, (A) is a front view of the principal part, (B) is the BB sectional drawing of (A). Sectional drawing which shows a state when the sliding door of the apparatus of FIG. 5 closes.

Explanation of symbols

10: Slide door 10a: Door trim 12: Vehicle body 14: Slide rail 16: Slider 18: Flexible tube 20: Fixed support member 22A, 22B: Flat cable 22u: U-turn part 23: Step 24: U-turn box 26, 28: connector

Claims (3)

A slide rail attached to the slide door, a slider slidably attached to the slide rail, a flexible tube supported at one end by the slider and supported at a predetermined position of the vehicle body by the slider, and the flexible In a sliding door power supply device comprising a wiring material that passes through the inside of the pipe and extends from the vehicle body side to the slider,
The slide rail, the front end side in a direction of closing the slide door they become horizontal or substantially horizontal, Ri Do from those of the rear end side is one that is bent so as to gradually displaced upward from the horizontal level, the sliding door When the slider is opened, the slider becomes almost the same height as the flexible tube support member on the vehicle body side, and the flexible tube extends.When the slide door is closed, the slider can be lifted by the slide rail. The flexible tube is drawn into the sliding door,
The slider is attached to the slide rail so that the portion supporting the one end side of the flexible tube faces the vehicle body side,
The fixed support member that supports the other end side of the flexible tube on the vehicle body side is fixed to the vehicle body such that the portion that supports the other end side of the flexible tube faces the slide door side,
The flexible tube is made of a flat corrugated tube, the major axis direction of the cross section is directed to the opening / closing direction of the slide door, one end side thereof is fixedly supported by the slider, and the other end side is fixedly supported by the fixed support member. ,
The wiring material passing through the flexible tube is a flat cable, and the width direction of the flat cable is directed to the long diameter direction of the flexible tube,
A U-turn box is integrally provided along the slide rail, and a flat cable connecting the slider and a predetermined position in the slide door is accommodated in the U-turn box with a U-turn portion provided in the middle. A power supply device for a sliding door, characterized in that   The power supply device for a sliding door according to claim 1, wherein the flat cable in the U-turn box and the flat cable in the flexible tube are continuous without a connection part on the way. Power supply device.   The power supply apparatus for a sliding door according to claim 1, wherein a flexible tube support member on the vehicle body side is installed under the step.

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