JP2006320145A - Regular feeder device for slide door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the size of a protector, to eliminate adverse effect on a feeder line due to repeated bending, and to facilitate laying out of equipment inside a door. <P>SOLUTION: A feeder line 10 for feeding power to an equipment inside a slide door that is connected to a power supply is bent and stored in a feeder line protector 1 attached to a car body. The base end of a compression spring 4 is fixed on one end side inside a rectangular case 3 of the feeding line protector 1. A roller 5 whose contour is circular and which rotates in the case 3 is arranged at the tip of the compression spring 4. The middle of the feeder line 10 that extends from the slide door in the direction toward the lengthwise direction side of the opening of the case 3 to the power supply by way of one end side of the case 3 is bridged to the roller 5 inside the case 3. The feeder line 10 bridged to the roller 5 is, with the slide door opened, led out from inside of the case 3 and the compression spring 4 is compressed by the roller 5. As the slide door is slid to be closed, the roller 5 is pushed back by the restoring force of the compression spring 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a constant power supply device for a sliding door that connects a sliding door of an automobile such as a one-box car and a vehicle body with a power supply line and constantly supplies power to the slide door.

Conventionally, in a sliding door of an automobile such as a one-box car, in order to supply power current and signal current from the vehicle body side to equipment such as electrical components on the sliding door side, a feeding line is routed from the vehicle body to the sliding door, There is known a case in which a protector made of a synthetic resin provided in a slide door is accommodated in a curved state so as to correspond to expansion and contraction of a power supply line accompanying opening and closing of the slide door. For example, a saddle-shaped guide portion having a curved or inclined longitudinal section is formed along the slit-shaped opening of the protector, and a feeder guide portion that is gradually curved or inclined in the height direction at the end of the saddle-shaped guide portion. Is formed, and a feeding line lead-out port following the opening is formed adjacent to the feeding line guiding part (see Patent Document 1). According to this apparatus, when the protector is attached to the slide door and the feed line is routed to the vehicle body side from the slit-shaped opening of the protector, the feed line swings along the hook-shaped guide portion when the slide door is opened and closed. It moves and rises smoothly along the feed line guiding portion at the end of the slit-shaped opening. As a result, when the feeder line fixing part on the vehicle body side is higher than the slit-shaped opening, the mouth part for feeding line guidance is at the same height as the feeder line fixing part when the slide door is fully closed, for example. Therefore, the feed line is not bent in a U-turn shape with a small diameter in the height direction, and an excessive bending force does not act on the feed line. In addition, when the sliding door is opened from the fully closed position, it is picked up by the feeder guide section and smoothly guided to the hook-shaped guide section without being caught, and the hook-shaped guide section feeds the feeder line led out from the slit-shaped opening. Curve or tilt and bend smoothly in the height direction. Since the sliding door is largely separated from the vehicle body to the outside when fully opened, the bending radius of the feeder line along the bowl-shaped guide portion is increased, and an excessive bending force does not act on the feeder line.
JP 2003-335188 A (page 4, FIG. 1)

  The conventional protector has been formed relatively large in the shape of a snail so that the feeder line is not repeatedly bent into a U-turn shape with a small diameter. Using this large snail-shaped protector is not only disadvantageous in terms of cost, but also because it incorporates a large protector inside the sliding door, it restricts the installation location of other equipment and adversely affects the layout design inside the door. There was a risk of effects.

  Therefore, an object of the present invention is to reduce the size of the protector, eliminate the adverse effect on the power supply line due to repeated bending, and facilitate the layout of the devices inside the door.

  In order to achieve the above-mentioned object, the present invention is configured to bend and accommodate a power supply line that is connected to a power source and supplies power to a device inside a slide door in a power supply line protector attached to a vehicle body, and the rectangular shape of the power supply line protector. The base end of the compression spring is fixed to one end side in the case, and a roller that has a circular outer periphery that rolls in the case is disposed at the tip of the compression spring, and the case passes through the one end side of the case from the sliding door of the power supply line. The part in the middle of the opening in the longitudinal direction of the opening is connected to the roller in the case and pulled out from the case while the sliding door is open, and the compression spring is compressed with the roller. The roller is pushed back by the restoring force of the compression spring as the slide closes the slide door.

  According to the present invention, the power supply line that is connected to the power source and that supplies power to the device inside the sliding door is bent and accommodated in the power supply line protector attached to the vehicle body, and the one end side in the rectangular case of the power supply line protector is accommodated. The base end of the compression spring is fixed, and a roller with a circular outer periphery that rolls in the case is arranged at the tip of the compression spring. From the sliding door of the feeder line to the case opening longitudinal direction side through the case one end side Slide the part that is connected to the power supply in the case to the roller in the case and pull out the power supply line that is applied to the roller with the slide door open, compress the compression spring with the roller, and close the slide door As the roller is pushed back by the restoring force of the compression spring, the feed line moves along the opening longitudinal direction of the case together with the roller as the door opens and closes. The feeder line that exists in a certain bending state along the circular shape of B is not repeatedly bent, so that it is not adversely affected by repeated bending, and the protector is downsized, which is advantageous in terms of cost. The layout design of other equipment inside the door is not made difficult.

  In addition, when the door is closed from the open state, the roller is pushed back with a spring force, and the compression spring that pulls the feed line back into the case is a flat spring bent in a zigzag shape. It is possible to smoothly return to the original position without biasing.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view of the feeder protector 1 attached to the vehicle body with the upper case 2 (see FIG. 3) removed, and a rectangular spring case 3 (also simply referred to as a case) has a compression spring 4 on one end side. An end is fixed, and a roller 5 having a circular outer periphery that rolls in the case 3 is arranged at the tip of the compression spring 4. A groove (not shown) is formed on the outer periphery of the roller 5, and the feeder line 10 is applied to the groove like a pulley. One end side of the power supply line 10 drawn out from the right end in the case 3 in FIG. 1 is connected to a device (not shown) of the slide door 11, and the other end side of the power supply line 10 is pulled out to the opening longitudinal direction side of the case 3 to supply power. Connected to.

  2 is a front view, FIG. 3 is a plan view, FIG. 4 is a bottom view, and FIG. 5 is a rear view. A long hole 3A is formed in the lower case 3, and a central axis 5A of the roller 5 is formed in the long hole 3A. Is inserted and the roller 5 moves while rotating along the elongated hole 3A. Further, a fixing portion 6 is formed on the upper opening side of the lower case 3, and a feeder line 10 is fixed to the fixing portion 6 (one portion of “X” in FIGS. 7 and 8). Further, a frame member 3B is provided in the lower case 3, and the compression spring 4 is accommodated in the frame member 3B, thereby ensuring the accuracy when the compression spring 4 is expanded and contracted. The plate spring 4 bent in a zigzag shape is made of metal, and the lower case 3 and the roller 5 are made of plastic. FIG. 6 is a perspective view of a state in which the upper case 2 is attached to the lower case 3, and guides the other end side of the power supply line 10 connected to the power source and fixes the fixing portion 6 to the upper case 2 and the lower case. 3 and formed. The state shown in FIGS. 1 to 6 is a state where the slide door 11 is fully opened, and the roller 5 is in a state where the compression spring 4 is compressed to the maximum. The force that presses the roller 5 toward the compression spring 4 is a force that pulls the roller 5 toward one end of the power supply line 10 applied to the roller 5.

  FIG. 7 is a diagram for explaining a state in which the slide door 11 is fully closed. The upper case 2 and the lower case 3 are omitted, and the movement of the roller 5 and the compression spring 4 is easily understood. The compression spring 4 is extended and the roller 5 is pressed against the other end side in the case 3, and the amount of the power supply line 10 drawn from the case 3 on the slide door 11 side is small. The feeder protector 1 containing the compression spring 4 and the roller 5 is installed under the door step 12 of the vehicle body. In the drawing, the part “X” indicates a part where the feeder 10 is fixed. A roller 14 is attached to the slide door 11 via a door arm 13, and the roller 14 travels on the side of the door step 12.

  FIG. 8 is a diagram in which the slide door 11 is fully opened. As the slide door 11 slides, one end side of the power supply line 10 is pulled out from the case 3, and the roller 5 is moved from the state shown in FIG. Rolls to the right to compress the compression spring 4. Reference numeral 15 denotes a harness connector extending from the power source, and reference numeral 16 denotes a harness connector extending from the device inside the slide door 11, and both ends of the feeder 10 are connected to the connectors 15 and 16. 7 and 8, the portion marked with “X” indicates a fixed portion of the feeder line 10.

  The roller 5 keeps the bending condition of the power supply line 10 constant and eliminates the possibility of bending it at an acute angle to make a broken line. The compression spring 4 returns to the origin when the slide door 11 is closed, and between the two points when opened ( 7 and 8 is compressed and accommodated in the frame member 3B against the spring force of the compression spring 4 via the roller 5 by the feeder line 10.

The perspective view before attaching the upper case which shows embodiment of this invention. Front view. Plan view. Bottom view. Rear view. The perspective view which attached the upper case. Explanatory drawing of a door closed state. Explanatory drawing of a door open state.

Explanation of symbols

1 Feeder line protector 2 Upper case 3 Lower case 4 Compression spring 5 Roller

Claims (2)

In the feeder protector attached to the vehicle body, the feeder line connected to the power supply and feeding the equipment inside the sliding door is bent and stored,
Fix the base end of the compression spring to one end side in the rectangular case of the feeder protector,
Place a roller with a circular outer periphery that rolls in the case at the tip of this compression spring
Hang the part in the middle of the case from the sliding door of the power supply line through one end of the case to the longitudinal direction of the opening of the case and connect it to the power source in the case.
Pull out the power supply line that is applied to the roller while the sliding door is open, compress the compression spring with the roller, and push the roller back by the restoring force of the compression spring as the slide closes the sliding door. A constant power feeder for sliding doors.   The continuous power supply device for a sliding door according to claim 1, wherein the compression spring is a plate spring bent in a zigzag shape.

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