JP2008006849A - Slide door structure for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide door structure for a vehicle capable of preventing the rapid closing (or rapid opening) of a slide door without generating noise even if performing rapid closing operation (or rapid opening operation) on the slide door. <P>SOLUTION: This slide door structure for the vehicle includes: an long hole 14a for movably holding a first pulley 7 installed on the vehicle rear side of a center rail 3 in the longitudinal direction of the vehicle; a spring 16a for energizing the first pulley 7 held by the long hole 14a on the outward side of the vehicle along the longitudinal direction of the vehicle; and a friction body 15 provided on the opposite side of the spring 16a along the longitudinal direction of the vehicle so as to face the first pulley 7 held by the elongated hole 14a. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle sliding door structure that opens and closes a vehicle opening / closing opening on the side of a vehicle such as a one-box type or a minivan type by moving the sliding door, and in particular, can prevent a sudden opening / closing operation of the sliding door. The present invention relates to a sliding door structure for a vehicle.

  A vehicle such as a one-box type or a minivan type is generally provided with a sliding door that can be opened and closed by being guided by a guide rail on the side of the vehicle. In a vehicle provided with such a sliding door, when the occupant performs the quick closing operation instead of the normal gentle closing operation from the state in which the sliding door is open, the sliding door moves rapidly, Due to the large inertial force, a large impact force is generated in the door lock portion on the slide door side and the striker on the vehicle side when closed.

  For this reason, there has conventionally been proposed a quick closing prevention device that prevents the sliding door from closing suddenly even when the sliding door is suddenly moved by suddenly closing the sliding door opened by the occupant (for example, , See Patent Document 1).

  In the sudden closing prevention device of Patent Document 1, when the slide door suddenly moves in the closing direction, the cam surface of the stopper lever provided on the slide door strongly contacts the cam roller provided on the vehicle side. Accordingly, the stopper lever is tilted about the pin, and the tilted stopper lever is brought into contact with the buffer block provided on the vehicle side, thereby preventing the sliding door from being suddenly closed.

When the sliding door is gently moved in the closing direction by a normal gentle closing operation, the tilted stopper lever returns to the horizontal state by the force of the spring before coming into contact with the shock absorber block on the vehicle side. The fully closed position is reached without stopping.
Japanese Patent No. 3404687

  By the way, in the sudden closing prevention device of Patent Document 1, even when the sliding door is moved in the opening direction and the closing direction to be opened and closed, the cam roller on the vehicle side comes into contact with the stopper lever on the sliding door side, so (Abnormal noise) occurs. In particular, as described above, when the sliding door is suddenly closed and the sliding door is suddenly closed, there is a problem that a louder sound (abnormal noise) is generated. In addition, in the sudden closing prevention device of the above-mentioned patent document 1, even when the sliding door is suddenly opened and the sliding door is opened rapidly, a louder sound (abnormal noise) is generated.

  Therefore, the present invention provides a vehicle sliding door structure that can prevent the sliding door from being suddenly closed or opened without causing abnormal noise even when the sliding door is suddenly closed or opened. Objective.

  In order to achieve the above object, the present invention provides a guide rail installed on a side surface of a vehicle along the front-rear direction of the vehicle, a slide door guided by the guide rail and movable in the front-rear direction of the vehicle, and the guide rail A first pulley rotatably installed on the vehicle rear side of the vehicle, a second pulley rotatably installed on the vehicle front side of the guide rail, and the guide rail of the slide door in the vicinity of the guide rail, A vehicular slide door structure having a cable wound between the first pulley and the second pulley and moving the cable in a forward direction and a reverse direction by a cable driving means to open and close the slide door A holding means for holding at least one of the first pulley and the second pulley movably in a longitudinal direction of the vehicle; and the holding hand The vehicle is configured so that at least one of the pulleys held in the vehicle is opposed to the urging means for urging the vehicle outward along the longitudinal direction of the vehicle, and the at least one pulley held by the holding means. And a friction body provided on the opposite side of the urging means along the front-rear direction.

  According to the vehicle sliding door structure of the present invention, when the sliding door is suddenly closed or opened, at least one pulley (first pulley) held by the holding means against the urging force by the urging means. Alternatively, the second pulley) moves while being driven by the holding means and presses against the friction body. As a result, the rotation of at least one of the pulleys (first pulley or second pulley) held by the holding means is stopped in a short time, and the movement of the cable hung around this pulley is stopped. It is possible to prevent the sliding door from being suddenly closed or opened without causing any trouble.

  Hereinafter, the present invention will be described based on the illustrated embodiments. FIG. 1 is a side view showing a vehicle (a minivan type vehicle in FIG. 1) to which a vehicle sliding door structure according to an embodiment of the present invention is applied, and FIG. 2 is a vehicle sliding door according to an embodiment of the present invention. It is a schematic plan view which shows the principal part of the vehicle to which the structure is applied. 1 and 2, the left side is the vehicle front side, and the right side is the vehicle rear side.

  As shown in FIGS. 1 and 2, a guide rail 3 for guiding a slide door (vehicle slide door) 2 as a vehicle door on the rear seat side in the vehicle front-rear direction is provided near the center of the side surface of the vehicle 1. It is provided along the front-rear direction. The base end side of the bracket 4 is connected to the inner side (vehicle body side) of the slide door 2, and the two rollers 5 a, the tip end side of the bracket 4 are positioned in the center rail 3 as a guide rail. 5b is rotatably supported. The rollers 5a and 5b are installed in the rear rail 3 so as to be able to roll.

  Although not shown in FIG. 1, an upper rail and a lower rail are respectively installed along the vehicle front-rear direction on the vehicle body side corresponding to the upper side and the lower side of the slide door 2. Connected to the inner upper side and lower side are brackets each provided with a rotatable roller located at the tip thereof in the upper rail and the lower rail, respectively. The upper rail and the lower rail are located on the vehicle front side with respect to the position of the center rail 3 at the center.

  One end side of the first cable 6 is connected to the front end side surface of the bracket 4 on the roller 5b side (vehicle rear side), and the other end side of the first cable 6 is wound around the first pulley 7 to wind the cable. It is wound around a pulley 8. Further, one end side of the second cable 9 is connected to the front end side surface of the bracket 4 on the roller 5a side (vehicle front side), and the other end side of the second cable 9 is wound around the second pulley 10 to It is wound around a cable winding pulley 8. The first pulley 7 is installed on the vehicle rear side of the center rail 3, and the second pulley 10 is installed on the vehicle front side of the center rail 3. The cable winding pulley 8 is connected to an electric motor 11 for rotationally driving the cable winding pulley 8. The first cable 6 and the second cable 9 are given a predetermined tension so that there is no slack.

  In the sliding door structure according to the present embodiment, as shown in FIGS. 2 and 3, the rotating shaft 12 of the first pulley 7 located on the vehicle rear side of the center rail 3 is a pulley that houses the first pulley 7. The case 13 is rotatably inserted into long holes 14a and 14b formed on both sides of the case 13 along the vehicle front-rear direction. A friction body 15 made of a rubber material having a high friction coefficient is attached to the front side of the vehicle inside the pulley case 13. The surface of the friction body 15 is formed in a concave shape corresponding to the curved surface shape of the surface of the first pulley 7. 3 is a cross-sectional view taken along line AA in FIG.

  A shaft support portion (not shown) that rotatably supports both ends of the rotating shaft 12 is installed so that the rotating shaft 12 can move in the longitudinal direction (vehicle longitudinal direction) of the long holes 14a and 14b. A pair of springs 16a and 16b that urge the rotary shaft 12 toward the vehicle rear side are provided between both sides of the rotary shaft 12 and the inner surface of the pulley case 13 on the vehicle rear side (opposite the friction body 15). Each is connected. The second pulley 10 is rotatably installed in a pulley case (not shown).

  In the present embodiment, when the sliding door 2 is normally closed to the front side of the vehicle, the springs 16a and 16b are more than the tension that the first cable 6 biases the first pulley 7 toward the front side of the vehicle. The urging force is set to be larger. In addition, when an occupant (operator) operates a door handle (not shown) of the slide door 2 and performs a quick closing operation for suddenly moving the opened slide door 2 in the closing direction (the vehicle front side). The tension for biasing the first pulley 7 toward the front side of the vehicle by the first cable 6 is set to be larger than the biasing force of the springs 16a and 16b.

  When the slide door 2 is moved to the rear side of the vehicle, for example, a switch (not shown) is operated to rotate the electric motor 11 to rotate the cable winding pulley 8 counterclockwise. The two pulleys 7 and 10 are driven to rotate so that the first cable 6 is taken up and the second cable 9 is fed out. Accordingly, since one end side of the first cable 6 is connected to the vehicle rear side of the bracket 4, the rollers 5 a and 5 b roll in the center rail 3 to the vehicle rear side, so that the slide door 2 is integrated with the bracket 4. Moves to the rear side of the vehicle along the side surface of the vehicle 1.

  On the other hand, when the sliding door 2 is closed and moved to the front side of the vehicle, for example, a switch (not shown) is operated, the electric motor 11 is driven to rotate, and the cable winding pulley 8 is rotated to the right. The two pulleys 7 and 10 are driven to rotate so that the first cable 6 is fed out and the second cable 9 is wound up. Therefore, since one end side of the second cable 9 is connected to the vehicle front side of the bracket 4, the rollers 5 a and 5 b roll in the center rail 3 to the vehicle front side, so that the slide door 2 is integrated with the bracket 4. Moves along the side of the vehicle 1 toward the front side of the vehicle.

  During the normal gentle opening and closing movements of the sliding door 2 described above, the rotary shaft 12 of the first pulley 7 is positioned on the vehicle rear side of the long holes 14a and 14b, and the first pulley 7 is separated from the friction body 15. ing.

  Then, when the slide door 2 is not fully closed (when it is fully open, or when it is located between the fully closed position and the fully open position), the occupant (operator) slides as shown in FIG. When the door handle (not shown) of the door 2 is operated to perform a sudden closing operation in which the opened slide door 2 is suddenly moved in the closing direction (arrow A direction), the sliding door 2 is suddenly closed. Along with the movement in the direction of arrow A, the first cable 6 whose one end is connected to the vehicle rear side of the bracket 4 is also suddenly drawn from the cable take-up pulley 8 and moved.

  At this time, suddenly large tension acts on the first cable 6, so that the first pulley 7 (rotary shaft 12) resists the urging force of the springs 16 a and 16 b along the longitudinal direction of the long holes 14 a and 14 b. The surface of the first pulley 7 which moves to the vehicle front side and is driven and rotated (right rotation) by the movement of the first cable 6 is in pressure contact with the surface of the friction body 15 (see FIG. 4). At this time, since the surface of the friction body 15 is formed in a concave shape corresponding to the curved shape of the surface of the first pulley 7, the first pulley 7 is in good pressure contact with the surface of the friction body 15 without a gap.

  Therefore, when the rotation of the first pulley 7 is surely stopped in a short time due to the frictional force with the friction body 15, the first cable 6 comes into contact with the surface of the first pulley 7 and stops. 6 is stopped from moving forward. As a result, the sudden movement of the slide door 2 connected to the bracket 4 toward the front side of the vehicle is stopped. In addition, since the friction body 15 is formed of a rubber material, noise hardly occurs when the rotating first pulley 7 is pressed.

  When the occupant cancels the sudden closing operation on the slide door 2 described above, the large tension acting on the first pulley 7 is reduced and the urging force of the springs 16a and 16b is increased. The first pulley 7 (rotating shaft 12) moves toward the vehicle rear side along the longitudinal direction of the long holes 14a and 14b by the urging force of 16b. Thus, the first pulley 7 is separated from the friction body 15 and returns to the normal position shown in FIG.

  Thus, according to the sliding door structure in the present embodiment, when the occupant suddenly closes the sliding door 2, the first pulley 7 (rotating shaft 12) is long against the urging force of the springs 16a and 16b. The first pulley 7 is moved along the longitudinal direction of the holes 14a and 14b while being driven to rotate toward the front side of the vehicle, pressed against the surface of the friction body 15, and the rotation of the first pulley 7 is reliably stopped in a short time. The movement of the cable 6 is stopped and the rapid movement of the slide door 2 is stopped. Thereby, the sudden closing operation of the slide door can be prevented without generating abnormal noise.

  Further, according to the sliding door structure in the present embodiment, the first pulley 7 can be moved in the vehicle front-rear direction along the elongated holes 14 a and 14 b formed in the pulley case 13 that houses the first pulley 7 on the vehicle rear side. Since the friction body 15 for press-contacting the first pulley 7 in the pulley case 13 is provided, a component for preventing the sudden closing operation of the slide door 2 can be provided in the pulley case 13, so that the slide door Therefore, it is not necessary to install a new part in the vehicle to prevent the sudden closing operation 2, and space saving can be achieved.

  Further, as shown in FIG. 5, a pair of protrusions 14a 'may be formed at positions opposed to long holes 14a (the other long hole 14b is not shown) formed on both side surfaces of the pulley case 13, respectively. The distance between the protrusions 14a ′ is that the occupant suddenly closes the slide door 2 and a large tension is suddenly applied to the first cable 6 to force the first pulley 7 toward the vehicle front side with respect to the rotating shaft 12. Is an interval that can be slidably moved when the value reaches a certain value or more.

  Further, as shown in FIG. 5, the occupant suddenly closes the slide door 2 by abruptly inclining the slope on the vehicle rear side (right side in FIG. 5) of each protrusion 14 a ′, so that the rotation shaft of the first pulley 7 When the force toward the vehicle front side with respect to 12 reaches a certain value or more, the first pulley 7 (rotating shaft 12) can be moved at a stroke and the pressing portion 14a 'can be moved quickly to be brought into press contact with the friction body 15 quickly. Further, the first pulley 7 (rotating shaft 12) is moved when the sudden closing operation on the sliding door 2 is canceled by gently inclining the slope of each protrusion 14a 'on the vehicle front side (left side in FIG. 5). The gently inclined slope of the protrusion 14a ′ can be easily moved to the vehicle rear side (right side in FIG. 5) by the urging force of the springs 16a and 16b.

  Further, since the first pulley 7 is driven (rotated right) during the sudden closing operation of the slide door 2, a large pressure contact force acts on the downstream side of the friction body 15 with respect to the rotation direction of the first pulley 7. . Therefore, as shown in FIG. 6, the thickness of the surface of the friction body 15 on the downstream side with respect to the driven rotation direction of the first pulley 7 during the sudden closing operation of the slide door 2 is made thicker than the thickness on the upstream side. Also good. As a result, when the occupant suddenly closes the slide door 2, the first pulley 7 that is driven (rotated to the right) can be effectively pressed against the downstream side where the friction body 15 is thick.

  In the embodiment described above, the first pulley 7 (rotary shaft 12) on the vehicle rear side is moved along the elongated holes 14a and 14b formed in the pulley case 13 in order to prevent the sudden closing operation of the slide door 2. However, in order to prevent the sliding door 2 from being suddenly opened, the second pulley 10 located on the front side of the vehicle may have the same configuration.

  That is, as shown in FIG. 7, the rotation shaft 17 of the second pulley 10 located on the front side of the vehicle has a long hole 19 formed along the vehicle front-rear direction on both side surfaces of the pulley case 18 that houses the second pulley 10. It is inserted in a freely rotatable manner. A friction body 20 made of a rubber material having a high friction coefficient is attached to the rear side of the vehicle in the pulley case 18 (right side in FIG. 7). The surface of the friction body 20 is formed in a concave shape corresponding to the curved surface shape of the surface of the second pulley 10. A shaft support portion (not shown) that rotatably supports both ends of the rotating shaft 17 is installed so that the rotating shaft 17 can move in the longitudinal direction of the elongated hole 19 (vehicle longitudinal direction). A pair of springs 21 that bias the rotary shaft 17 toward the vehicle front side are connected between the vicinity of both sides of the rotary shaft 17 and the inner surface of the pulley case 18 on the vehicle front side (left side in FIG. 7). Yes.

  Then, when the slide door 2 is not fully open (when it is fully closed or between the fully closed position and the fully open position), the occupant (operator) can set the door handle (not When the slide door 2 is suddenly moved in the opening direction (rear side of the vehicle) and the slide door 2 is moved rapidly in the opening direction, the bracket 4 The second cable 9 having one end connected to the front side of the vehicle is also suddenly drawn from the cable take-up pulley 8 and moved.

  At this time, suddenly large tension acts on the second cable 9, so that the second pulley 10 (the rotating shaft 17) moves toward the vehicle rear side along the longitudinal direction of the long hole 19 against the urging force of the spring 21. The surface of the second pulley 10 that is moved and rotated by rotation of the second cable 10 is pressed against the surface of the friction body 20. Therefore, when the rotation of the second pulley 9 is surely stopped in a short time by the frictional force with the friction body 20, the second cable 9 is brought into a state of being pressed against the surface of the second pulley 10 and stopped. 9 is stopped from moving to the rear side of the vehicle. Thereby, the abrupt movement to the vehicle rear side of the slide door 2 connected to the bracket 4 is stopped.

  As described above, even when the occupant suddenly opens the slide door 2, it is possible to prevent the slide door from being rapidly opened without generating an abnormal noise.

  In the above-described embodiment, the vehicle has the guide rail as the center rail 3. However, the vehicle sliding door structure according to the present invention can be similarly applied to a vehicle in which the guide rail is the upper rail or the lower rail. it can.

The side view which shows the vehicle to which the sliding door structure for vehicles which concerns on embodiment of this invention is applied. The schematic plan view which shows the principal part of the vehicle to which the sliding door structure for vehicles which concerns on embodiment of this invention is applied. FIG. 3 is a sectional view taken along line AA in FIG. 2. The figure which shows the state which the 1st pulley was press-contacted to the friction body by the sliding door structure for vehicles which concerns on embodiment of this invention. The partially broken sectional view which shows the pulley case by the side of the 1st pulley which has a long hole in the modification of embodiment of this invention. The partially broken sectional view which shows the pulley case by the side of the 1st pulley which has a friction body in the modification of embodiment of this invention. The partially broken sectional view which shows the pulley case which applied the sliding door structure for vehicles which concerns on embodiment of this invention to the 2nd pulley side.

Explanation of symbols

1 Vehicle 2 Slide door 3 Center rail (guide rail)
6 First cable (cable)
7 First pulley 9 Second cable (cable)
10 Second pulley 11 Electric motor (cable driving means)
12, 17 Rotating shaft 13, 18 Pulley case 14a, 14b, 19 Long hole (holding means)
15, 20 Friction bodies 16a, 16b, 21 Spring (biasing means)

Claims (5)

A guide rail installed on the side of the vehicle along the front-rear direction of the vehicle, a slide door guided by the guide rail and movable in the front-rear direction of the vehicle, and a guide rail rotatably installed on the rear side of the guide rail A first pulley, a second pulley rotatably installed on the vehicle front side of the guide rail, and connected to the vicinity of the guide rail of the slide door, and between the first pulley and the second pulley A vehicle sliding door structure for opening and closing the sliding door by moving the cable in a forward direction and a reverse direction by a cable driving means,
Holding means for holding at least one of the first pulley and the second pulley so as to be movable in the longitudinal direction of the vehicle;
An urging means for urging at least one of the pulleys held by the holding means toward the outward side of the vehicle along a longitudinal direction of the vehicle;
A friction body provided on the opposite side of the urging means along the front-rear direction of the vehicle so as to face at least the one pulley held by the holding means,
A sliding door structure for a vehicle. The first pulley is a vehicle of the first cable that acts on the first pulley when the sliding door is suddenly closed toward the front side of the vehicle by a manual operation when the sliding door is not fully closed. Due to the tension toward the front side, the holding means moves against the front side of the vehicle against the urging force of the urging means and moves while being driven to press against the friction body.
The sliding door structure for vehicles according to claim 1 characterized by things. The holding means is an elongated hole formed so as to pass through both ends of the rotation shaft of the first pulley in a pulley case that houses the first pulley.
The sliding door structure for vehicles according to claim 1 or 2 characterized by things. The surface of the friction body is formed in a concave shape corresponding to the curved surface shape of the surface of the first pulley.
The sliding door structure for vehicles according to any one of claims 1 to 3 characterized by things. The thickness of the surface of the friction body is made thicker on the downstream side than the thickness on the upstream side with respect to the driven rotation direction of the first pulley during the sudden closing operation of the slide door.
The vehicular sliding door structure according to claim 2.

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