JP2007197963A - Sliding door driving device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding door driving device capable of electrically opening and closing a sliding door in a vehicle of arranging a center arm on the car body side, by arranging a center guide rail inside the sliding door. <P>SOLUTION: The center arm 6 is arranged on the car body 2 side of an intermediate part in the vertical direction of the sliding door 4, and a vertical roller 10 and a horizontal roller 12 arranged inside the sliding door 4 and slidably engaging with the center guide rail 8 extending in the longitudinal direction of a car body 2, are arranged in a tip part of the center arm 6. A pulley unit 14 is arranged in a lower part of the center arm 6, and the sliding door 4 is opened and closed by winding a closing side cable 24 or an opening side cable 26 extending from a sliding door driving motor 22 and wired via the pulley unit 14 by the sliding door driving motor 22. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a slide door drive device that opens and closes a boarding / alighting opening provided on a side of a vehicle body by an electric slide operation in the longitudinal direction of the vehicle body.

  The sliding door that slides along the side surface of the vehicle body includes an upper arm provided at the upper part of the sliding door and an upper guide rail provided at the front end of the lower arm provided at the lower part of the sliding door. Each roller is slidably engaged with the guide rail, and a roller attached to a tip end of a center arm provided at an intermediate portion in the vertical direction of the sliding door is slidably engaged with the center guide rail disposed on the outer wall of the vehicle body. By combining, the slide door is configured to be openable and closable.

  Further, in a vehicle that electrically opens and closes a sliding door, a sliding door drive motor is disposed inside the door, and ends of two cables that are wound and sent out by the sliding door drive motor are attached to the center arm. The slide door is opened and closed by fixing the cable to the front and rear ends of the center guide rail via the pulley unit, and winding and feeding the two cables alternately by the slide door drive motor (for example, Patent Document 1).

JP 2003-129746 A

  By the way, in recent years, in order to improve the appearance of the vehicle body, the center guide rail provided on the outer wall of the vehicle body has been eliminated, the center guide rail is provided inside the slide door, and the vehicle body at the rear end of the door when the slide door is fully closed A slide door has been developed in which a center arm is disposed in a roller and a roller attached to the tip of the center arm is slidably engaged with a center guide rail inside the slide door.

  Further, in a vehicle that electrically opens and closes the above-described sliding door, a cable is routed through one or two pulleys in a pulley unit attached to a center arm. When routing a cable via one or two pulleys in a pulley unit with a large diameter, the rotation angle of the pulley unit becomes large, and the cable may come off from the pulley. The rotation limit angle of the center arm cannot be increased. Furthermore, the longer the center arm length is set, the smaller the rotation limit angle of the center arm is, and the degree of freedom in forming the slide door is limited.

  The present invention can increase the rotation limit angle of a slide door driving device and a center arm that can open and close the slide door electrically in a vehicle in which the center guide rail is provided inside the slide door and the center arm is provided on the vehicle body side. An object is to provide a sliding door drive device.

  The slide door drive device according to claim 1 is provided on the vehicle body side of the middle portion of the slide door in the vertical direction, and is provided with a roller slidably engaged with a center guide rail disposed on the slide door at the tip. A center arm, a pulley unit disposed on the center arm, a slide door drive motor that drives the slide door, and one end fixed to the front end of the slide door, and the slide door drive motor via the pulley of the pulley unit A slide door opening side cable that is wound or sent out, and a slide door closing side cable that is fixed at the rear end of the slide door and wound or sent out by a slide door drive motor via a pulley of a pulley unit. It is characterized by providing.

  According to the slide door drive device of the first aspect, the center arm for holding the slide door is provided on the vehicle body side and the vehicle is provided with the center guide rail on the slide door side to electrically open and close the slide door. Can do.

  Further, in the slide door drive device according to claim 2, the pulley unit has a plurality of pulleys, and the plurality of pulleys have a center arm in which the opening of the open side cable and the close side cable with respect to the pulley arranged closest to the vehicle body is determined. It is characterized by being arranged so as to be at least 15 degrees during the rotation.

  According to a third aspect of the present invention, in the sliding door drive device, the pulley unit has at least three pulleys.

  According to the sliding door drive device of the second and third aspects, even when the total length of the center arm is lengthened and the rotation angle of the center arm is set to be large, the engagement of the open side cable and the closed side cable with respect to the pulley is not possible. You can increase your bill.

  According to the slide door drive device of the present invention, the opening / closing operation of the slide door can be performed electrically even in a vehicle in which the center arm for holding the slide door is provided on the vehicle body side and the center guide rail is provided on the slide door side.

  In addition, even when the center arm is lengthened and the rotation angle of the center arm is set to be large, the allowance for the pulley of the open side cable and the close side cable can be increased, and the cable when the center arm is rotated Derailment can be prevented and the sliding door can be opened and closed reliably.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS A sliding door drive device according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a rear side view of a vehicle body provided with a slide door drive device according to an embodiment of the present invention, and FIG. 2 is a view of the slide door drive device provided on the center arm as viewed from the rear of the vehicle. is there. 3 and 4 are views for explaining opening and closing of the sliding door by the sliding door driving device.

  As shown in FIG. 1, an upper arm (not shown) and a lower arm (not shown) extending inward of the vehicle are provided at the front upper portion and the front lower portion of the slide door 4 provided on the side portion of the vehicle body 2 and opened and closed by a sliding motion in the vehicle longitudinal direction. An upper guide rail (not shown) is provided in each of which a roller (not shown) attached to the tip of the upper arm and the lower arm extends in the longitudinal direction of the vehicle body 2. ) And slidably engage with lower guide rails (not shown).

  Further, a center arm 6 is provided between the upper arm and the lower arm on the vehicle body 2 side of the middle portion in the vertical direction of the slide door 4, and the center arm 6 is disposed inside the slide door 4 at the tip end portion. A vertical roller 10 is provided which slidably engages a horizontal surface of a channel-shaped center guide rail 8 extending in the front-rear direction of the vehicle body 2 and holds the load of the slide door 4. A horizontal roller 12 is provided below the vertical roller 10 to slidably engage the vertical surface of the center guide rail 8 and regulate the position of the slide door 4 in the vehicle width direction. The center arm 6 rotates around a one-dot chain line A shown in FIG. 2 when the vertical roller 10 and the horizontal roller 12 slide along the center guide rail 8.

  A pulley unit 14 is disposed below the center arm 6. In the pulley unit 14, a first pulley 16, a second pulley 18, and a third pulley 20 are disposed in order from the vehicle body 2 side. The closed cable 24 extending from the slide door drive motor 22 disposed in the vehicle body 2 is routed through the first pulley 16, the second pulley 18, and the third pulley 20 of the pulley unit 14, and the end portion thereof is routed. It is fixed to the rear end R of the slide door 4. The open cable 26 extending from the slide door drive motor 22 is routed through the first pulley 16, the second pulley 18, and the third pulley 20 of the pulley unit 14, and the end thereof is the front end of the slide door 4. It is fixed to F.

  Here, in the first pulley 16, the second pulley 18, and the third pulley 20, the center arm is provided with a margin of the opening side cable 26 and the closing side cable 24 with respect to the first pulley 16 arranged on the most vehicle body side of the pulley unit 14. 6, that is, the pulley unit 14 is arranged to be at least 15 degrees during rotation about the point X.

  In the sliding door drive device according to this embodiment, when the sliding door 4 is opened from the fully closed state, the opening side cable 26 is wound by the sliding door driving motor 22 as shown in FIG. Then, the sliding door 4 is slid rearward of the vehicle body. In this case, the vertical roller 10 and the horizontal roller 12 (not shown in FIG. 3) provided at the tip of the center arm 6 slide along the horizontal plane and the vertical plane of the center guide rail 8, and therefore the pulley unit 14. Rotates around the rotation center X, which is the center point of the first pulley 16, in the direction of the arrow shown in FIG.

  When the sliding door 4 is closed from the fully opened state, the sliding door 4 is slid forward by the winding of the closing cable 24 by the sliding door drive motor 22 as shown in FIG. In this case, since the vertical roller 10 and the horizontal roller 12 (not shown in FIG. 4) provided at the tip of the center arm 6 slide along the horizontal plane and the vertical plane of the center guide rail 8, the pulley unit 14 Rotates about the rotation center X, which is the center point of the first pulley 16, in the direction of the arrow shown in FIG.

  According to the slide door drive device of this embodiment, the center arm for holding the slide door is provided on the vehicle body side, and the center guide rail is provided on the slide door side. The sliding door can be opened and closed electrically.

  In addition, even when the center arm is lengthened and the rotation angle of the center arm is set to be large, the allowance for the pulley of the open side cable and the close side cable can be increased, and the cable when the center arm is rotated In addition to increasing the certainty of preventing derailment, the bending angle of the center guide rail installed inside the sliding door can be expanded, for example, the opening and closing of a thick sliding door can be opened and closed. The degree of freedom in modeling can be increased.

  In the above-described embodiment, three pulleys are arranged in the pulley unit. However, four or more pulleys may be arranged. Moreover, in the above-mentioned embodiment, the arrangement | positioning allowance with respect to the pulley of an open side cable and a close side cable is enlarged by arrange | positioning three pulleys, However, the open side cable is increased by increasing the diameter of the pulley. In addition, the allowance for the pulley of the closed cable may be increased.

It is a rear part side view provided with the drive device of the sliding door which concerns on embodiment of this invention. It is the figure which looked at the center arm which concerns on embodiment of this invention from the vehicle body rear direction. It is a figure for demonstrating opening | release of the sliding door by the sliding door drive device which concerns on embodiment of this invention. It is a figure for demonstrating closure of the slide door by the slide door drive device which concerns on embodiment of this invention.

Explanation of symbols

2 ... Body, 4 ... Sliding door, 6 ... Center arm, 8 ... Center guide rail, 12 ... Vertical roller, 12 ... Horizontal roller, 14 ... Pulley unit, 16 ... First pulley, 18 ... Second pulley, 20 ... First 3 pulleys, 22 ... slide door drive motor, 24 ... closed side cable, 26 ... open side cable.

Claims (3)

A center arm provided on the vehicle body side of the middle portion in the vertical direction of the sliding door and provided with a roller slidably engaged with a center guide rail disposed on the sliding door at a tip portion;
A pulley unit disposed on the center arm;
A slide door drive motor for driving the slide door;
One end is fixed to the front end of the slide door, and the slide door opening side cable is wound or sent out by the slide door drive motor via the pulley of the pulley unit;
One end is fixed to the rear end of the slide door, and the slide door closing side cable is wound or sent out by the slide door drive motor via the pulley of the pulley unit,
A sliding door drive device comprising:   The pulley unit has a plurality of pulleys, and the plurality of pulleys are at least when the opening of the open side cable and the close side cable with respect to the pulley arranged closest to the vehicle body is rotating the center arm. The sliding door driving device according to claim 1, wherein the sliding door driving device is arranged at 15 degrees.   The sliding door drive mechanism according to claim 1 or 2, wherein the pulley unit has at least three pulleys.

Images