JP2006347391A - Sliding door structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the deformation in a specified portion of a locker from being locally enlarged even when external force is applied to the locker by a side collision or a front collision, etc. <P>SOLUTION: A vehicle recess 20 formed in the vehicle longitudinal direction and opened toward the outside of a vehicle lateral direction is installed in the locker 12. Two longitudinal ends of a hinge pin 32 provided in the other end side of a hinge arm 28 are connected, so that a sliding door 16 can be slid in a pair of walls 20A and 20B of the vehicle recess 20 opposite each other. Therefore, compared with the case where an upper rail and a lower rail are used, and an arm bracket is used as usual, the locker 12 changes a little in the rigidity in the vehicle longitudinal direction. Even when the external force is applied to the locker 12 by the side collision or the front collision, etc. the local deformation can be prevented from being enlarged in the specified portion of the locker 12. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a slide door structure, and more particularly to a slide door structure in which a door is slid using a hinge arm.

  As this kind of sliding door structure, the following is known (for example, refer to Patent Document 1).

  For example, in the sliding door device described in Patent Document 1, an upper rail and a lower rail that extend in the front-rear direction of the vehicle are provided at positions corresponding to the upper and lower portions of the door on the side of the vehicle body. The upper rail is fixed to a step-down portion formed in the roof reinforcement, and the lower rail is bonded and fixed to the lower surface of the floor panel.

  The upper rail is provided with a slider having a roller and slidable in the upper rail, and a link as a hinge arm is rotatably connected to the slider. A bracket is rotatably provided on the side opposite to the slider of the link, and this bracket is fixed to the upper part of the slide door.

A roller that can roll in the roller rail is disposed on the lower rail, and a guide bracket as a hinge arm is rotatably connected to the roller. A door bracket is connected to the guide bracket, and the door bracket is connected to a lower portion of the slide door.
JP 2004-124446 A

  In the example described in Patent Document 1, as described above, the slide door is slid using the upper rail and the lower rail. The upper rail is fixed to a stepped portion formed in the roof reinforcement, and the lower rail is bonded and fixed to the lower surface of the floor panel.

  Therefore, by providing the upper rail and the lower rail on the side surface of the vehicle body, as a result, the rigidity (strength) of the portion is locally increased.

  On the other hand, on the side of the vehicle body, the boundary portion between the portion where the upper rail and the lower rail are provided and the portion where the upper rail and the lower rail are not provided, that is, the portion near the outer side of both end portions in the longitudinal direction of each rail is rigid ( Strength) changes (decreases) abruptly.

  Therefore, when an external force is applied to the side surface of the vehicle body due to a side collision or a frontal collision, the deformation is locally increased at the boundary between the portion where the upper rail and the lower rail are provided and the portion where the upper rail and the lower rail are not provided on the side surface of the vehicle body. There is a fear.

  In addition, when an arm bracket is provided on the side surface of the vehicle body and the vehicle body side surface of the hinge arm can be rotated by this arm bracket, when an external force is applied to the side surface of the vehicle body due to a side collision or a frontal collision, as described above. Further, there is a possibility that the deformation is locally increased at a boundary portion between a portion where the arm bracket is provided on the side surface of the vehicle body and a portion where the arm bracket is not provided.

  The present invention has been made in view of the above circumstances, and the purpose thereof is to locally increase deformation at a specific part on the side surface of the vehicle body even when an external force is applied to the side surface of the vehicle body due to a side collision or a frontal collision. An object of the present invention is to provide a sliding door structure capable of preventing this.

  In order to solve the above problems, a sliding door structure according to claim 1 is formed along a longitudinal direction of the vehicle body on the side surface of the vehicle body, and a sliding door that opens and closes a door opening provided on the side surface of the vehicle body. A pair of vehicle body recesses having an opening on the outer side in the width direction, one end side is rotatably connected to the slide door, and a hinge pin is provided on the other end side, and both longitudinal ends of the hinge pin are opposed to the vehicle body recess. And a hinge arm coupled to the wall.

  2. The sliding door structure according to claim 1, wherein a vehicle body concave portion formed along the vehicle longitudinal direction and having an opening on the outer side in the vehicle width direction is provided on a side surface of the vehicle body, and a pair of opposing walls of the vehicle body concave portion are provided. The sliding door is slid by connecting both ends in the longitudinal direction of the hinge pin provided on the other end side of the hinge arm.

  Therefore, compared to the case of using the upper rail and the lower rail as in the prior art, or the case of using the arm bracket, there is less change in the rigidity of the vehicle body side in the longitudinal direction of the vehicle body. Even when is added, it is possible to prevent the deformation from locally increasing at a specific portion on the side surface of the vehicle body.

  A sliding door structure according to a second aspect is characterized in that, in the sliding door structure according to the first aspect, the concave portion of the vehicle body has a substantially constant cross-sectional shape along the longitudinal direction of the vehicle body.

  In the sliding door structure according to the second aspect, the vehicle body recess is formed in a substantially constant cross-sectional shape along the vehicle body longitudinal direction.

  Therefore, since there is little change in the rigidity of the vehicle body recess in the longitudinal direction of the vehicle body, even when an external force is applied to the vehicle body recess due to a side collision or a frontal collision, it is possible to prevent a local deformation from becoming large at a specific part of the vehicle body recess. Is possible.

  The sliding door structure according to claim 3 is the sliding door structure according to claim 1 or 2, except that both longitudinal ends of the hinge pin are coupled to the pair of wall portions in the vehicle body recess. At this position, a deformation preventing member disposed between the pair of wall portions and supporting the pair of wall portions is provided.

  In the sliding door structure according to claim 3, a deformation preventing member that is disposed between the pair of wall portions and supports the pair of wall portions is provided at a position other than where the hinge pin in the vehicle body recess is coupled to the pair of wall portions. ing.

  Therefore, the deformation of the cross section of the vehicle body recess other than the position where the hinge pin is coupled to the pair of wall portions can be suppressed by the deformation preventing member, so that the cross section of the vehicle body recess is suppressed over a wide range before and after the vehicle body recess. Can be increased. Thereby, the support rigidity of a slide door can be raised as a result.

  The sliding door structure according to claim 4 is the sliding door structure according to any one of claims 1 to 3, wherein the side surface of the vehicle body or the sliding door includes a side surface of the vehicle body and the sliding door. A seal member is provided to seal the vehicle outer side of the gap between the hinge arms.

  In the sliding door structure according to the fourth aspect, the vehicle body side surface or the sliding door is provided with a seal member that seals the vehicle outer side with respect to the hinge arm in the gap between the vehicle body side surface and the sliding door.

  Accordingly, since the seal member can prevent foreign matter from adhering to the hinge arm from the outside of the vehicle through the gap between the side surface of the vehicle body and the slide door, it is possible to prevent the occupant's clothes and the like from being soiled by the hinge arm.

  As described above in detail, according to the sliding door structure of the first aspect, the vehicle body front-rear direction on the side surface of the vehicle body is higher than when the upper rail and the lower rail are used as in the prior art or when the arm bracket is used. Therefore, even when an external force is applied to the side surface of the vehicle body due to a side collision or a frontal collision, it is possible to prevent a local deformation from becoming large at a specific part on the side surface of the vehicle body.

  In addition, according to the sliding door structure of the second aspect, since the rigidity change in the vehicle body longitudinal direction of the vehicle body recess is small, even when an external force is applied to the vehicle body recess due to a side collision or a frontal collision, the specific portion of the vehicle body recess Thus, it is possible to prevent local deformation from becoming large.

  In addition, as in the sliding door structure according to claim 3, when the longitudinal cross-section of the hinge pin in the vehicle body concave portion is coupled to the pair of wall portions, the deformation prevention member suppresses the cross-sectional deformation. Since the cross-sectional deformation is suppressed over a wide range before and after the vehicle body recess, the attachment rigidity of the hinge arm can be increased. Thereby, the support rigidity of a slide door can be raised as a result.

  Further, as in the slide door structure according to claim 4, when the seal member prevents foreign matter from adhering to the hinge arm from the outside of the vehicle through the gap between the side surface of the vehicle body and the slide door, It is possible to prevent the occupant's clothes and the like from being soiled by foreign matter adhering to the hinge arm.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be noted that members, arrangements, and the like described below do not limit the present invention, and it goes without saying that various modifications can be made in accordance with the spirit of the present invention.

[First embodiment]
First, the configuration of the sliding door structure 10 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

  The structure of the sliding door structure 10 which concerns on 1st embodiment of this invention is shown by FIG. 1 thru | or FIG. In this embodiment, the sliding door structure 10 is applied to the rocker portion 12 of a vehicle such as a passenger car.

  As shown in FIG. 1, a door opening 14 is provided on a vehicle body side surface of the vehicle, and the door opening 14 is opened and closed by a slide door 16.

  As shown in FIGS. 1 and 2, the rocker portion 12 is provided with a rocker reinforcement 18, and a body recess 20 is formed in the rocker reinforcement 18 along the vehicle longitudinal direction.

  The vehicle body recess 20 is formed in a substantially U-shaped cross section having an opening on the outer side in the vehicle body width direction, and has a substantially constant cross sectional shape along the vehicle body longitudinal direction.

  In the present embodiment, as shown in FIG. 2, the lower part of the vehicle is exposed to the outside of the vehicle body from the vehicle body recess 20 of the rocker reinforcement 18, and the rocker reinforcement 18 also serves as an outer panel (design surface). ing.

  Further, an inner panel 22 is provided on the inner side of the rocker reinforcement 18, and a gap between the rocker reinforcement 18 and the slide door 16 is sealed at an upper joint portion between the rocker reinforcement 18 and the inner panel 22. A weather strip 24 is provided.

  An arm bracket 26 is provided at a position corresponding to the vehicle body recess 20 of the slide door 16, and one end of a four-link arm type hinge arm 28 is rotatable by a hinge pin 30 on the arm bracket 26. It is connected.

  A hinge pin 32 is provided at the other end of the hinge arm 28, and both longitudinal ends of the hinge pin 32 are coupled to a pair of opposing wall portions 20 </ b> A and 20 </ b> B of the vehicle body recess 20. The other end side of the hinge arm 28 is rotatable with respect to the vehicle body recess 20 by a hinge pin 32.

  Further, in the present embodiment, as shown in FIG. 3, the deformation preventing member is located at a position other than where the hinge pin 32 in the vehicle body recess 20 is coupled to the pair of wall portions 20A and 20B (appropriate position at which the cross-sectional deformation is likely to occur). A bulkhead 34 is provided.

  The bulkhead 34 is disposed between the pair of wall portions 20A and 20B, and supports the pair of wall portions 20A and 20B.

  Further, in the present embodiment, a vehicle body recess 36 having a substantially U-shaped cross section having an opening on the inner side in the vehicle width direction is provided below the vehicle body recess 20 of the rocker reinforcement 18. A bulkhead 38 is provided at a position corresponding to the bulkhead 34. The bulk head 34 and the bulk head 38 are arranged so as to be aligned in the vertical direction of the vehicle body.

  Next, the operation of the sliding door structure 10 according to the first embodiment of the present invention will be described.

  FIG. 4A shows a full-section plastic moment 44 of the rocker portion 12 in the longitudinal direction of the vehicle body in the sliding door structure 10 according to the present embodiment.

  4B, as a comparative example of the present embodiment, an arm bracket 40 extending in the vehicle body front-rear direction is provided on the step portion 41 (L-shaped) of the rocker portion 12, and the hinge arm 28 is provided on the arm bracket 40. A full-section plastic moment 46 in the longitudinal direction of the rocker portion 12 of the rocker portion 12 in a sliding door structure 42 in which the vehicle body side surfaces are rotatably connected is shown.

  As shown in FIG. 4B, in the sliding door structure 42 according to the comparative example, the entire cross-section plastic moment 44 of the rocker portion 12 rises at the portion of the rocker portion 12 where the arm bracket 40 is provided. The region in which the entire cross-section plastic moment 46 rises is a wide range along the vehicle body longitudinal direction of the rocker portion 12.

  Then, at the boundary portion between the portion where the arm bracket 40 is provided and the portion where the arm bracket 40 is not provided, the total cross-section plastic moment 46 rapidly decreases.

  At this time, since the length of the rocker portion 12 in the longitudinal direction of the vehicle body is long, if the all-section plastic moment 46 suddenly decreases as described above, if an external force is applied to the side surface of the vehicle body due to a side collision or a frontal collision, the rocker portion 12 There is a possibility that the deformation is locally increased, for example, a break occurs at a boundary portion (rigidity change point) between a portion where the arm bracket 40 is provided and a portion where the arm bracket 40 is not provided in the portion 12.

  Further, in order to suppress local deformation such as bending of the rocker portion 12, it is necessary to add a reinforcing member or the like to the boundary portion between the portion where the arm bracket 40 is provided and the portion where the rocker portion 12 is not provided. There is.

  On the other hand, in the sliding door structure 10 according to the present embodiment, as shown in FIG. 4A, the change in the total plastic sectional moment 44 in the longitudinal direction of the vehicle body is small as compared with the configuration of the comparative example. In addition, since the concave shape of the vehicle body recess 20 is U-shaped, the magnitude of the total plastic section moment 44 can be secured to the same level as the configuration using the bracket 40 or the lower rail without using the arm bracket 40 or the lower rail. It is.

  As described above, in the sliding door structure 10 according to the present embodiment, the rocker portion 12 in the longitudinal direction of the vehicle body is compared with the case where the lower rail is used as in the prior art or the case where the arm bracket 40 is used as in the comparative example. Little change in rigidity.

  Therefore, even when an external force is applied to the rocker portion 12 due to a side collision or a frontal collision, the input due to the side collision or the frontal collision can be uniformly distributed. It is possible to prevent local deformation from becoming large at a specific site such as a change point.

  Further, in the sliding door structure 10 of the present embodiment, since the change in rigidity of the rocker portion 12 in the longitudinal direction of the vehicle body is small as described above, at a specific part such as the rigidity change point of the rocker portion 12 in the longitudinal direction of the vehicle body as in the comparative example. Addition of a reinforcing member or the like to the rocker portion 12 is not necessary.

  Furthermore, in the slide door structure 10 according to the present embodiment, the vehicle body recess 20 is configured with a substantially constant cross-sectional shape along the vehicle body longitudinal direction, so that the rigidity change of the vehicle body recess 20 in the vehicle body longitudinal direction is small.

  Therefore, even when an external force is applied to the vehicle body recess 20 due to a side collision or a frontal collision, the input due to the side collision or the frontal collision can be uniformly distributed. Can be prevented.

  Moreover, the workability at the time of shaping | molding can be improved by comprising the vehicle body recessed part 20 with a substantially constant cross-sectional shape along the vehicle body front-back direction.

  When the vehicle body recess 20 of the rocker portion 12 is configured with a constant cross-sectional shape, the rocker portion 12 is preferably roll-molded, and the vehicle body recess 20 of the rocker portion 12 is substantially constant with a slight change. In the case of a cross-sectional shape, the rocker portion 12 is preferably press-molded.

  In the slide door structure 10 according to the present embodiment, both longitudinal ends of the hinge pin 32 are coupled to the pair of wall portions 20A and 20B of the vehicle body recess 20. Thereby, since a pair of wall part 20A, 20B can be supported by the hinge pin 32, the cross-sectional deformation | transformation of the vehicle body recessed part 20 can be suppressed.

  In the present embodiment, the hinge pin 32 of the hinge arm 28 is directly coupled to the vehicle body recess 20 and the arm bracket is integrated with the rocker reinforcement 18, so that the arm bracket is not necessary. Further, since the vehicle body recess 20 is used instead of the arm bracket, by omitting the arm bracket, the sliding door structure 10 can be reduced in weight and the manufacturing cost can be reduced by reducing the number of parts.

  In the sliding door structure 10 according to the first embodiment of the present invention, the bulkhead 34 is provided at a position other than the hinge pin 32 in the vehicle body recess 20 being coupled to the pair of wall portions 20A and 20B.

  Therefore, since the bulkhead 34 can suppress the cross-sectional displacement at a position other than where the hinge pin 32 in the vehicle body concave portion 20 is coupled to the pair of wall portions 20A, 20B, the cross-sectional displacement is suppressed over a wide range before and after the vehicle body concave portion 20, The attachment rigidity of the hinge arm 28 can be increased. As a result, the support rigidity of the slide door 16 can be increased. Furthermore, in the present embodiment, the bulkhead 38 suppresses the cross-sectional breakage of the lower rocker portion of the vehicle body recess 20.

  Although the bulkhead 34 suppresses the cross-sectional deformation of the vehicle body recess 20, the vehicle body longitudinal shape is a single thin plate in the longitudinal direction except for the welding flange, and the entire cross-sectional plastic moment (rigidity) in the vehicle longitudinal direction. From the perspective of changes, the impact of changes is small.

  Similarly, the hinge pin 32 is also resistant to bending in the vertical direction in the vehicle body recess 20, but is less affected by changes in the entire cross-sectional plastic moment (rigidity) in the vehicle longitudinal direction (front and back of the rocker portion 12). It has little effect on bending).

  Next, a modified example of the sliding door structure 10 according to the first embodiment of the present invention will be described.

  In the present embodiment, the lower part of the vehicle is exposed to the outside of the vehicle body from the vehicle body recess 20 of the rocker reinforcement 18 and the rocker reinforcement 18 also serves as an outer panel (design surface integrated type). As described above, the outer panel 48 may be provided on the lower side of the vehicle body recessed portion 20 of the rocker reinforcement 18 (design-type separate body type).

  Further, as shown in FIG. 6, in addition to the weather strip 24 that seals the vehicle inner side from the hinge arm 28 in the gap between the rocker reinforcement 18 and the slide door 16, the rocker reinforcement 18 and the slide door 16 A weather strip 50 as a seal member may be provided on the outer panel 48 so as to seal the outer side of the vehicle with respect to the hinge arm 28 in the gap between them (double seal type).

  At this time, the hinge arm 28 has a large amount of protrusion from the side surface of the vehicle body when the slide door 16 is opened. Therefore, if the hinge arm 28 is dirty, the clothes of the occupant may be soiled.

  However, as described above, when the weather strip 50 that seals the vehicle outer side than the hinge arm 28 in the gap between the rocker reinforcement 18 and the slide door 16 is provided, the rocker reinforcement 18 is located between the rocker reinforcement 18 and the slide door 16. It is possible to prevent foreign matters from adhering to the hinge arm 28 from the outside of the vehicle through the gap.

  As a result, even when the hinge arm 28 is located at the foot portion of the occupant when getting on and off and the occupant touches the hinge arm 28, foreign matter from the outside of the vehicle does not adhere to the hinge arm 28. It is possible to prevent soiling of clothes and the like. Moreover, sound insulation etc. can be improved by using a double seal structure as shown in FIG.

  The weather strip 50 may be provided on the slide door 16 side.

[Second Embodiment]
Next, the configuration of the sliding door structure 52 according to the second embodiment of the present invention will be described with reference to FIGS. 7 to 9.

  7 to 9 show the configuration of the sliding door structure 52 according to the second embodiment of the present invention. In this embodiment, the sliding door structure 52 is applied to the roof side rail portion 54 of a vehicle such as a passenger car.

  The roof side rail portion 54 is provided with a roof side rail reinforcement 56. The roof side rail reinforcement 56 is formed with a vehicle body recess 58 along the vehicle body longitudinal direction.

  The vehicle body recess 58 is formed in a substantially U-shaped cross section having an opening on the outer side in the vehicle body width direction, and has a substantially constant cross sectional shape along the vehicle body longitudinal direction.

  As shown in FIG. 9, an arm bracket 60 is provided at a position corresponding to the vehicle body recess 58 of the slide door 16, and one end of the hinge arm 62 is rotated by a hinge pin 64 on the arm bracket 60. It is connected freely.

  Both longitudinal ends of the hinge pin 66 provided at the other end of the hinge arm 62 are coupled to a pair of opposing wall portions 58A and 58B of the vehicle body recess 58.

  In addition, in the second embodiment of the present invention, the operations and effects associated with the same configuration as in the first embodiment are the same as those in the first embodiment. Therefore, referring to the first embodiment, The description is omitted.

  Further, in the present embodiment, although not particularly illustrated, a pair of wall portions is located at a position other than where the hinge pin 32 in the vehicle body recess 58 is coupled to the pair of wall portions 58A and 58B, as in the first embodiment. A bulk head (not shown) that is disposed between 58A and 58B and supports the pair of wall portions 58A and 58B may be provided.

  Moreover, in the said embodiment, although the sliding door structure was provided in either the rocker part 12 or the roof side rail part 54 of a vehicle, the sliding door structure was provided in both the rocker part 12 and the roof side rail part 54 of a vehicle. Also good.

FIG. 1 is a view showing a vehicle to which a sliding door structure according to a first embodiment of the present invention is applied. 2 is a cross-sectional view taken along the line AA in FIG. FIG. 3 is an enlarged view of a main part of the rocker portion in the vehicle of FIG. FIG. 4A is a diagram showing the entire cross-section plastic moment of the slide door structure according to the comparative example, and FIG. 4B is a diagram showing the full-section plastic moment of the slide door structure according to the present embodiment. FIG. 5 is a view showing a modification of the sliding door structure according to the first embodiment of the present invention. FIG. 6 is a view showing a modification of the sliding door structure according to the first embodiment of the present invention. FIG. 7 is a view showing a vehicle to which the sliding door structure according to the second embodiment of the present invention is applied. FIG. 8 is an enlarged view of the sliding door structure according to the second embodiment of the present invention. 9 is a cross-sectional view taken along the line BB in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,52 Slide door structure 12 Rocker part 14 Door opening 16 Slide door 18 Rocker reinforcement 20, 58 Car body recessed part 20A, 20B, 58A, 58B Wall part 28, 62 Hinge arm 32, 66 Hinge pin 34 Bulkhead 50 Weather strip 54 Roof side Rail part 56 Roof side rail reinforcement

Claims (4)

A sliding door that opens and closes a door opening provided on the side of the vehicle body;
A vehicle body recess formed on the vehicle body side surface along the vehicle body longitudinal direction and having an opening on the vehicle body width direction outside;
A hinge arm having one end side rotatably connected to the slide door and having a hinge pin on the other end side, and having both longitudinal ends of the hinge pin coupled to a pair of opposing wall portions of the vehicle body recess; A sliding door structure characterized by having a structure.   The sliding door structure according to claim 1, wherein the vehicle body concave portion has a substantially constant cross-sectional shape along the vehicle body longitudinal direction.   The vehicle body recess is provided with a deformation preventing member that is disposed between the pair of wall portions and supports the pair of wall portions at a position other than where the hinge pins are coupled to the pair of wall portions. The sliding door structure according to claim 1 or 2, characterized by the above.   2. A seal member for sealing a vehicle outer side with respect to the hinge arm of a gap between the vehicle body side surface and the slide door is provided on the vehicle body side surface or the slide door. The sliding door structure as described in any one of thru | or 3 thru | or 3.

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