JP6176970B2 - Sliding door structure - Google Patents

Description

  The present invention relates to a sliding door structure.

  Some automobiles include a sliding door on the side of the vehicle body that opens and closes by sliding in the front-rear direction. The slide door is provided with an upper roller, a lower roller, and a center roller at the front upper part, the front lower part, and the rear center part, respectively. The upper roller, the lower roller, and the center roller are rotatably supported by rails provided on the vehicle body, and the sliding door slides in the front-rear direction by the rolling of the upper roller, the lower roller, and the center roller.

  In an automobile equipped with such a sliding door, there is a possibility that a gap is generated between the sliding door and the vehicle body at the time of a collision accident. That is, the upper part and the lower part of the rear part of the slide door are not held by the vehicle body, and only the central part in the vertical direction is held by the vehicle body via the center roller. Therefore, if a passenger or luggage in the vehicle collides with the rear part of the sliding door from the inside and a force is applied to the rear part of the sliding door from the inside of the vehicle to the outside of the vehicle, the rear upper part of the sliding door is displaced to the outside of the vehicle, and the sliding door and the vehicle body There may be a gap between the two.

  In order to prevent this, for example, it has been proposed to provide a regulating member for regulating the displacement of the upper part of the rear door to the outside of the vehicle at the rear upper part of the sliding door.

JP 2010-215087 A JP 2012-136164 A

  By the way, a locking device that engages with a striker protruding from the vehicle body is provided at the rear center of the sliding door. The locking device is supported by lock reinforcement. The lock reinforcement extends forward from a joint portion between the rear end portion of the door outer panel and the rear end portion of the door inner panel. Therefore, when a force is applied to the rear part of the sliding door from the inside of the vehicle to the outside of the vehicle, the front end of the locking device and the lock reinforcement pivots outward with the striker as a fulcrum. There is a risk of facilitating displacement.

  In order to solve this problem, it is conceivable to adopt the configuration according to the conventional proposal and to increase the strength by increasing the thickness of the lock reinforcement. However, this method increases the cost and weight of the vehicle.

  An object of the present invention is to provide a sliding door structure that can suppress the displacement of the rear upper part of the sliding door to the outside of the vehicle due to the force from the inside of the vehicle toward the outside of the vehicle with a low cost and low weight configuration.

In order to achieve the above object, a sliding door structure according to the present invention is provided at a sliding door provided on a side surface of a vehicle body and at a central portion in a vertical direction at a rear end portion of the sliding door, and protrudes from the vehicle body. A locking device that engages with the striker, and a reinforcing member that extends in the front-rear direction inside the slide door and faces the locking device in the vehicle width direction from the outside of the vehicle, the locking device and the reinforcing member One of the two is formed with a protrusion protruding toward the other of them at a position lower than the striker.

  According to this configuration, when a force directed from the inside of the vehicle to the outside of the vehicle is applied to the rear portion of the slide door, the lock device is formed on one of the lock device and the reinforcing member when the front end portion of the lock device is rotationally displaced outward with the striker as a fulcrum. The protruding portion contacts the other of them. Thereby, the force which rotationally displaces the locking device is received by the reinforcing member, and further rotational displacement of the locking device is suppressed. As a result, the deformation of the slide door can be suppressed.

  In addition, since the contact position between the protrusion and the locking device or the reinforcing member is lower than the striker, the lower part of the reinforcing member is displaced outward from the height position of the striker, and the height of the striker is higher than the striker. However, a torsional deformation that causes the upper portion to be displaced toward the inside of the vehicle occurs. Therefore, the displacement of the rear upper part of the sliding door to the vehicle outer side (opening to the vehicle outer side with respect to the vehicle body) can be suppressed without providing a conventional regulating member or the like.

  Therefore, it is possible to suppress the displacement of the rear upper part of the sliding door to the outside of the vehicle due to the force from the inside of the vehicle toward the outside of the vehicle with a low cost and low weight configuration.

  The reinforcing member is provided such that the upper end is located above the height position of the striker and the lower end is located below the height position of the striker, and extends in the front-rear direction between the front end and the lower end of the slide door. The reinforcing member and the first reinforcing member are configured as separate members, are provided to overlap the first reinforcing member in the vehicle width direction from the locking device side, and have the same width as the first reinforcing member in the vertical direction. The second reinforcing member on which the protrusion is formed may be included.

  According to this configuration, the second reinforcing member is provided so as to overlap the locking device side of the first reinforcing member, thereby increasing the strength of the contact portion with the locking device without increasing the thickness of the entire reinforcing member. Can be made. Moreover, the rigidity of the second reinforcing member can be increased by forming the protrusion on the second reinforcing member. As a result, it is possible to further suppress the displacement of the rear upper part of the sliding door to the outside of the vehicle due to the force from the inside of the vehicle toward the outside of the vehicle with a low cost and low weight configuration.

  ADVANTAGE OF THE INVENTION According to this invention, the displacement to the vehicle outer side of the rear upper part of a slide door by the force which goes to the vehicle exterior from a vehicle inside can be suppressed with a low-cost and low weight structure.

1 is a right side view of a vehicle to which a sliding door structure according to an embodiment of the present invention is applied. It is a side view which shows the internal structure of a slide door. FIG. 3 is a cross-sectional view of the sliding door taken along a section line AA shown in FIG. It is sectional drawing which shows an example of the state of the slide door after a vehicle collision.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a right side view of a vehicle to which a sliding door structure according to an embodiment of the present invention is applied.

  The vehicle 1 is a four-wheeled vehicle and includes left and right front wheels 2 and rear wheels 3 and a vehicle body 4 supported by the front wheels 2 and the rear wheels 3.

  A front door opening 5 and a rear door opening 6 are formed on the right side surface of the vehicle body 4. The front door opening 5 and the rear door opening 6 are integrally formed as one door opening, for example. The vehicle body 4 is provided with a hinge door 7 and a slide door 8 that open and close the front door opening 5 and the rear door opening 6, respectively.

  The front door opening 5 and the rear door opening 6 may be divided forward and backward by a center pillar (B pillar). Further, only the structure of the right side surface of the vehicle body 4 is taken up, but the left side surface of the vehicle body 4 may be configured similarly to the right side surface.

  The slide door 8 is slidably held on the vehicle body 4. Specifically, the vehicle body 4 is provided with an upper rail 11, a lower rail 12, and a center rail 13 that extend in the front-rear direction above, below, and behind the rear door opening 6. Although not shown, the slide door 8 is provided with an upper roller, a lower roller, and a center roller at the front upper portion, the front lower portion, and the rear center portion, respectively. The upper roller, the lower roller, and the center roller are supported by the upper rail 11, the lower rail 12, and the center rail 13, respectively, so as to be able to roll. The sliding door 8 slides along the upper rail 11, the lower rail 12, and the center rail 13 by the rolling of the upper roller, the lower roller, and the center roller.

  FIG. 2 is a side view showing the internal structure of the sliding door. FIG. 3 is a cross-sectional view of the sliding door taken along a cutting plane line AA shown in FIG.

  The sliding door 8 includes an inner panel 21, an outer panel 22, a lock reinforcement 23, a lock device 24, a first reinforcement 25, and a second reinforcement 26.

  For example, the inner panel 21 and the outer panel 22 are joined to each other at their front ends and rear ends by hemming. The inner panel 21 bulges to the inside of the vehicle between the front end portion and the rear end portion, so that a space is formed between the inner panel 21 and the outer panel 22.

  As shown in FIG. 3, the lock reinforcement 23, the lock device 24, the first reinforcement 25, and the second reinforcement 26 are disposed between the inner panel 21 and the outer panel 22.

  The lock reinforcement 23 has a rectangular shape that is long in the front-rear direction in a side view, and is provided at the rear portion of the slide door 8. The lock reinforcement 23 is sandwiched between the rear end portion of the inner panel 21 and the rear end portion of the outer panel 22 and extends forward from the rear end portion in a cantilevered state. Is bent in a crank shape. In FIG. 2, the illustration of the lock reinforcement 23 is omitted.

  The lock device 24 is attached to the side surface of the lock reinforcement 23 on the vehicle outer side. A striker 28 is provided on the rear pillar (C pillar) 27 of the vehicle body 4 so as to protrude forward at the same height as the locking device 24. In a state where the slide door 8 is closed (a state where the rear door opening 6 is closed), the lock device 24 engages with the striker 28 and regulates the slide of the slide door 8.

  The locking device 24 is provided with an extending portion 29. One end of the extended portion 29 is fixed to the side surface on the vehicle inner side of the front end portion of the locking device 24, extends in the front lower direction, bends to the vehicle outer side, and is positioned on the vehicle outer side from the vehicle outer side surface of the locking device 24. And further bent forward. The extending portion 29 may be formed separately from the locking device 24, or may be formed integrally with the locking device 24.

  The first reinforcement 25 has a substantially rectangular plate shape, and extends in the front-rear direction along the outer panel 22 at the same height as the locking device 24. The front end portion of the first reinforcement 25 is sandwiched by a connecting portion between the front end portion of the inner panel 21 and the front end portion of the outer panel 22. The rear end portion of the first reinforcement 25 is sandwiched by a joint portion between the rear end portion of the inner panel 21 and the rear end portion of the outer panel 22. The upper end of the first reinforcement 25 is located above the height position of the striker 28, and the lower end thereof is located below the height position of the striker 28.

  The second reinforcement 26 has a substantially rectangular shape in side view. The second reinforcement 26 has the same width as the first reinforcement 25 in the vertical direction, and the length in the front-rear direction is shorter than that of the first reinforcement 25. The second reinforcement 26 is disposed at a position facing the locking device 24 in the vehicle width direction, and is fixed to the side surface on the vehicle inner side of the first reinforcement 25. A convex protrusion 30 is formed at the lower end of the second reinforcement 26 so as to protrude inward of the vehicle. The front end portion (lower end portion) of the extending portion 29 is opposed to the protrusion 30 with an interval in the vehicle width direction from the vehicle inner side.

  FIG. 4 is a cross-sectional view showing an example of the state of the slide door after a vehicle collision.

  When the vehicle 1 collides, an occupant or luggage in the vehicle may collide with the rear portion of the slide door 8 from the inside, and a force directed from the inside of the vehicle to the outside may be applied to the rear portion 8 of the slide door. When a force from the inside of the vehicle toward the outside of the vehicle is applied to the rear portion of the slide door 8, the front end portions of the lock device 24 and the lock reinforcement 23 are rotationally displaced outward with the striker 28 as a fulcrum. As shown in FIG. 4, when the front end portion of the extending portion 29 of the locking device 24 and the protrusion 30 formed on the second reinforcement 26 come into contact with each other due to this rotational displacement, the locking device 24 is rotated. The force for moving the displacement is received by the first reinforcement 25 via the second reinforcement 26, and further rotation displacement of the lock device 24 is suppressed. As a result, deformation of the slide door 8 can be suppressed.

  In addition, since the contact position between the extending portion 29 and the projecting portion 30 is lower than the striker 28, the lower portion of the second reinforcement 26 is displaced outward from the height position of the striker 28. A torsional deformation occurs such that the upper portion of the position 28 is displaced toward the vehicle interior side. Therefore, the displacement of the rear upper portion of the slide door 8 toward the vehicle outer side (opening toward the vehicle outer side with respect to the vehicle body 4) can be suppressed without providing a conventional restricting member or the like.

  Therefore, it is possible to suppress the displacement of the rear upper portion of the slide door 8 to the outside of the vehicle due to the force from the inside of the vehicle toward the outside of the vehicle with a low cost and low weight configuration.

  Further, in the vehicle 1, the first reinforcement 25 and the first reinforcement 25 are configured as separate members, and are provided to overlap the first reinforcement 25 in the vehicle width direction from the locking device 24 side. 2 reinforcements 26 are provided. In the configuration in which the second reinforcement 26 is not provided, the extending portion 29 contacts the first reinforcement 25. Therefore, in order to increase the strength of the contact portion, the entire first reinforcement 25 is thick. Must be converted. Since the second reinforcement 26 is provided, the strength of the contact portion with the lock device 24 can be increased without increasing the thickness of the entire first reinforcement 25. Moreover, the rigidity of the second reinforcement 26 can be increased by forming the protrusion 30 on the second reinforcement 26. As a result, it is possible to further suppress the displacement of the rear upper portion of the slide door 8 to the outside of the vehicle due to the force from the inside of the vehicle toward the outside of the vehicle with a low cost and low weight configuration.

  As mentioned above, although one Embodiment of this invention was described, this invention can also be implemented with another form.

  For example, if the first reinforcement 25 has sufficient rigidity, the second reinforcement 26 is omitted, and the front portion of the extension portion 29 in the first reinforcement 25 is opposed to the vehicle width direction. In addition, a convex protrusion that protrudes toward the inside of the vehicle may be formed.

  Moreover, although the extending part 29 is provided in the locking device 24, the extending part 29 may be omitted in the configuration in which the protrusion 30 is formed on the second reinforcement 26. In this case, when a force directed from the inside of the vehicle to the outside of the vehicle is applied to the rear portion of the slide door 8 at the time of the collision of the vehicle 1, the front end portions of the lock device 24 and the lock reinforcement 23 are rotationally displaced outward with the striker 28 as a fulcrum. When the front lower end of the device 24 abuts against the protrusion 30, further rotational displacement is suppressed. Similarly, in the configuration in which the protrusion is formed on the first reinforcement 26, the extending portion 29 may be omitted.

  Further, in the configuration in which the extending portion 29 is provided in the locking device 24, the protrusion 30 may be omitted.

  In addition, various design changes can be made to the above-described configuration within the scope of the matters described in the claims.

4 Car body 8 Slide door 24 Lock device 28 Strike 30 Projection 25 First reinforcement (reinforcing member, first reinforcing member)
26 Second reinforcement (reinforcing member, second reinforcing member)

Claims (2)

A sliding door provided on the side of the vehicle body;
A locking device that is provided at the center in the vertical direction at the rear end of the sliding door and that engages with a striker protruding from the vehicle body;
A reinforcing member that extends in the front-rear direction inside the sliding door and faces the locking device from the vehicle outer side in the vehicle width direction;
One of the locking device and the reinforcing member is a sliding door structure in which a protrusion protruding toward the other one is formed at a position lower than the striker.   The reinforcing member is provided such that an upper end is located above the height position of the striker and a lower end is located below the height position of the striker, and the front-rear direction between the front end and the lower end of the slide door. The first reinforcing member extending in the direction of the first reinforcing member and the first reinforcing member are provided separately from each other, and are provided so as to overlap the first reinforcing member from the locking device side in the vehicle width direction, and the first reinforcing member extends vertically. The sliding door structure according to claim 1, further comprising a second reinforcing member having the same width as the reinforcing member and having the protrusions formed thereon.

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