JP5776575B2 - Rear side door structure for vehicles - Google Patents

Description

  The present invention relates to a vehicle rear side door structure.

  A door outside handle (outside door handle) provided with a lever arm on the front end side in the vehicle front-rear direction and a door outer panel fixed to the door outer panel so that the lever arm can be rotated inside the vehicle width direction 2. Description of the Related Art A vehicle door structure including a hinge bracket is known (for example, Patent Document 1). In the vehicle door structure disclosed in Patent Document 1, the hinge bracket is disposed so as to overlap the partition sash that supports the door glass in the vehicle width direction, and is caused by a vehicle side collision (hereinafter simply referred to as “side collision”). When a side impact load is input to the front side of the hinge bracket on the door outer panel in the vehicle longitudinal direction, the hinge bracket contacts the partition sash, thereby suppressing the rotation of the door outside handle in the door lock release direction. It is like that.

JP 2009-262786 A

  However, in the technique disclosed in Patent Document 1, when a side impact load is input to the front portion of the hinge bracket in the door outer panel in the front-and-rear direction of the vehicle and the lower portion of the vehicle in the up-and-down direction, ) Occurs across the door outside handle, the following is a concern. That is, while the hinge bracket fixed to the door outer panel is displaced inward in the vehicle width direction, an inertia force acting outward in the vehicle width direction acts on the door outside handle, and the door outside handle acts on the hinge bracket. On the other hand, there is a possibility of being displaced relatively outward in the vehicle width direction. That is, there is a possibility that the door outside handle rotates in the door unlocking direction due to the inertial force.

  In consideration of the above facts, the present invention provides a door outer panel that has a door outer handle base when the front side in the vehicle front-rear direction and the lower side in the vehicle vertical direction are pressed inward in the vehicle width direction. It aims at suppressing that a broken line is generated so as to cross the door outside handle.

The vehicle rear side door structure according to claim 1 is provided on a door outer panel constituting an outer plate of the vehicle rear side door, on a rear end side in the vehicle front-rear direction of the door outer panel, and on an inner side in the vehicle width direction. A door lock device that restrains the rear side door for the vehicle body, a belt line outer reinforcement provided along a belt line portion of the door outer panel on the inner side in the vehicle width direction of the door outer panel, and a vehicle longitudinal direction of the door outer panel A door outside handle base that is disposed on the rear end side and below the belt line outer reinforcement and is mounted on the inner side of the door outer panel in the vehicle width direction, and on the outer side of the door outer panel in the vehicle width direction. Arranged in the longitudinal direction and connected to the door lock device A door outside handle that is rotatably supported by the door outside handle base via a rotating shaft that extends in the vehicle vertical direction, and that is rotated and released from the restraint by the door lock device. The door outer handle is provided between the door outer panel and the door lock device, and crosses the door outside handle in the vehicle up-down direction on the rear side in the vehicle front-rear direction with respect to the rotating shaft when viewed from the outside in the vehicle width direction. The belt line outer reinforcement between the door glass lifting rail rear for supporting the glass so that it can be raised and lowered, and the vehicle front-rear base front end of the door outside handle base as viewed from the outside in the vehicle width direction and the door glass lifting rail rear. It is formed on, from the base front end of the door outer panel When the site of the lower vehicle longitudinal direction front side and the vehicle vertical direction is pressed inward in the vehicle width direction, and a, a fragile portion which becomes a starting point of bending deformation of the door outer panel with the base front.

According to the arrangement, the belt line outer reinforcement (hereinafter, simply referred to as "outer reinforcement") are fragile portion is formed in the. The weakened portion is located between the front end of the door front / rear direction base of the door outside handle base (hereinafter also simply referred to as “door handle base”) and the door glass lifting rail rear as viewed from the outside in the vehicle width direction. As a result, the front portion of the door outer base of the door handle base on the door outer panel in the front-rear direction of the vehicle and the lower side of the vehicle up-down direction (hereinafter also referred to as “the obliquely lower side of the vehicle”) When pressed, the door outer panel is easily bent and deformed starting from the weakened portion of the outer reinforcement and the base front end of the door handle base. That is, a broken line is likely to be generated in the door outer panel along a straight line passing through the weak portion of the outer reinforcement and the base front end of the door handle base. As a result, it is suppressed that a broken line crosses the door outside handle on the door outer panel.

Also, de Agulhas lifting Reruriya, when viewed from the outside in the vehicle width direction, the door outside handle (hereinafter, simply referred to as "door handle") vehicle the door handle at the rear side of the vehicle longitudinal direction than the rotational axis of the Crosses vertically. Thereby, for example, when viewed from the outside in the vehicle width direction, the area of the door glass can be increased as compared with the configuration in which the door glass lifting rail rear is located on the front side in the vehicle front-rear direction with respect to the rotation axis of the door handle. it can.

  On the other hand, when the door glass elevating rail rear crosses the door handle in the vehicle vertical direction on the rear side in the vehicle front-rear direction with respect to the rotation axis of the door handle in this way, the vehicle is inclined more obliquely than the front end of the door handle base at the door outer panel. When the lower portion is pressed inward in the vehicle width direction, the door outer panel may come into contact with the door glass elevating rail rear, and a broken line may be generated in the door outer panel along the door glass elevating rail rear. That is, a broken line may occur in the door outer panel so as to cross the door handle in the vehicle vertical direction on the rear side in the vehicle longitudinal direction with respect to the rotation axis of the door handle.

  On the other hand, in this invention, the weak part of outer reinforcement is located between the base front end of a door handle base, and a door glass raising / lowering rail rear. Thereby, before the door outer panel contacts the door glass lift rail rear, a broken line is likely to be generated in the door outer panel along a straight line passing through the weak portion of the outer reinforcement and the base front end of the door handle base. As a result, the door outer panel is prevented from coming into contact with the door glass elevating rail rear, so that it is suppressed that a broken line crosses the door handle in the vehicle vertical direction on the door outer panel.

Rear side door structure for a vehicle according to claim 2, Oite to claim 1, wherein the base front end, said extending from the vehicle front-rear direction of the handle front end of the door outside handle to the vehicle longitudinal direction front side.

  According to the above configuration, the base front end of the door handle base extends from the front end of the door handle in the vehicle front-rear direction to the front side in the vehicle front-rear direction. As a result, compared to a configuration in which the base front end of the door handle base does not extend from the front end of the door handle to the front side in the vehicle front-rear direction, the portion of the door outer panel that is diagonally below the front front end of the door handle base is the vehicle. When pressed inward in the width direction, the door outer panel is easily bent and deformed starting from the base front end of the door handle base at a position away from the door handle to the front side in the vehicle longitudinal direction. Therefore, it is further suppressed that a broken line crosses the door handle on the door outer panel.

According to a third aspect of the vehicle rear side door structure of the third aspect , in the first or second aspect , the belt line reinforcement is formed with a plurality of the weak portions spaced apart in the vehicle front-rear direction.

  According to said structure, the some weak part is formed in the outer reinforcement at intervals in the vehicle front-back direction. As a result, when a portion of the door outer panel that is obliquely lower than the front front end of the door handle base is pressed inward in the vehicle width direction, the door starts from one of the weakened portions and the base front end of the door handle base. The outer panel is easily bent and deformed. Therefore, it is further suppressed that a broken line crosses the door handle on the door outer panel.

  As described above, according to the vehicle rear side door structure according to the present invention, the front part of the door outer handle base of the door outer panel in the vehicle front-rear direction and the lower part of the vehicle vertical direction are pressed inward in the vehicle width direction. When this is done, it is possible to suppress the occurrence of a broken line across the door outside handle on the door outer panel.

1 is a side view showing a rear side door to which a vehicle rear side door structure according to an embodiment of the present invention is applied. It is an expanded sectional view along line 2-2 in FIG. It is a principal part expanded side view of FIG. 1 with which the door outer panel was abbreviate | omitted.

  Hereinafter, a vehicle rear side door structure according to an embodiment of the present invention will be described with reference to the drawings. It should be noted that an arrow FR appropriately shown in each drawing indicates the front side in the vehicle front-rear direction, an arrow UP indicates the upper side in the vehicle vertical direction, and an arrow IN indicates the inner side (vehicle interior side) in the vehicle width direction.

  FIG. 1 shows, as an example, a rear side door 12 to which a vehicle rear side door structure 10 according to the present embodiment is applied. The rear side door 12 opens and closes a door opening formed on a side portion of a vehicle body (not shown), and is rotatably supported by a door hinge of a center pillar (not shown) that forms a front edge portion of the door opening in the vehicle front-rear direction. ing.

  The rear side door 12 is provided with a door body 14, a door frame 16 provided on the upper portion of the door body 14 to form a window frame, a pair of door glass lifting rail front 20 </ b> F and a door glass lifting / lowering that supports the door glass 18 to be movable up and down. A rail rear 20R and a door outside handle device 50 provided on the rear end side of the door body 14 in the vehicle front-rear direction are provided.

  As shown in FIG. 2, the door main body 14 is disposed along the vehicle front-rear direction, and includes a door outer panel 22 constituting the outer plate of the rear side door 12, and the vehicle outer side of the door outer panel 22 in the vehicle front-rear direction. And a door inner panel 24 that constitutes an inner plate of the rear side door 12. The door outer panel 22 and the door inner panel 24 are opposed to each other in the vehicle width direction, and are joined by hemming at the outer peripheral portion excluding the respective upper ends. Further, a gap 26 is formed between the upper end portion of the door outer panel 22 and the upper end portion of the door inner panel 24 so that the door glass 18 (see FIG. 1) moves up and down.

  A belt line outer reinforcement 30 that reinforces the belt line portion BL of the door outer panel 22 is provided inside the door outer panel 22 in the vehicle width direction. The outer reinforcement 30 faces the door outer panel 22 in the vehicle width direction, and extends in the vehicle front-rear direction along the belt line portion BL of the door outer panel 22. Flange portions 30 </ b> A and 30 </ b> B are provided at upper and lower ends of the outer reinforcement 30, respectively. These flange portions 30A and 30B are coupled to the door outer panel 22 at important points. Thus, the outer reinforcement 30 and the door outer panel 22 form a closed cross-sectional structure.

  A door lock device 40 is provided between the door outer panel 22 and the door inner panel 24 to restrain the rear side door 12 to a vehicle body (not shown). The door lock device 40 is fixed to the door inner panel 24 via lock reinforcement (not shown). The door lock device 40 includes a latch (not shown) that meshes with a striker provided on a rear pillar (not shown) that forms the side of the vehicle body. When the latch engages with the striker, the rear side door 12 is restrained by the rear pillar. Further, the door lock device 40 is provided with a release lever (not shown) that releases the engagement between the striker and the latch and releases the restraint of the rear side door 12 with respect to the rear pillar.

  A door outside handle device 50 for opening and closing the rear side door 12 is provided at the rear end side of the door outer panel 22 in the vehicle front-rear direction. A door outside handle device (hereinafter, also simply referred to as “door handle device”) 50 includes a door outside handle base 52 and a door outside handle 54.

  The door handle base 52 is disposed below the outer reinforcement 30 (lower side in the vehicle up-down direction) with the vehicle front-rear direction as the longitudinal direction, and is attached to the inside of the door outer panel 22 in the vehicle width direction by bolts or the like (not shown). ing. Further, as shown in FIG. 3, the base front end 52F of the door handle base 52 extends to the front side in the vehicle front-rear direction from the handle front end 54F1 in the vehicle front-rear direction of the door outside handle 54. In addition, illustration of the door outer panel 22 is abbreviate | omitted in FIG.

  The door handle 54 is disposed outside the door outer panel 22 in the vehicle width direction. The door handle 54 is disposed with the vehicle front-rear direction as a longitudinal direction, and an intermediate portion in the longitudinal direction serves as a gripping portion 54A. Further, a front end portion 54F of the door handle 54 in the vehicle front-rear direction is disposed inside the door outer panel 22 in the vehicle width direction through an opening (not shown) formed in the door outer panel 22 and extends in the vehicle vertical direction. The door handle base 52 is rotatably supported on the front end side in the vehicle longitudinal direction.

  On the other hand, the rear end portion 54R of the door handle 54 in the vehicle front-rear direction is connected to the aforementioned release lever of the door lock device 40 via a cable (not shown). As a result, the occupant grips the grip portion 54A of the door handle 54, and rotates the door handle 54 outwardly in the vehicle width direction (in the door unlocking direction) around the rotation shaft 56, whereby the rear end of the door handle 54 is obtained. The door lock device 40 is operated by a release lever connected to the portion 54R. As a result, the engagement between the striker and the latch (not shown) is released, and the restraint of the rear side door 12 with respect to the rear pillar is released.

  As shown in FIG. 2, between the door handle base 52 and the door lock device 40, the door glass elevating rail rear 20R that supports the rear end portion of the door glass 18 (see FIG. 1) in the vehicle front-rear direction is movable up and down. Is provided. The door glass elevating rail rear (hereinafter also simply referred to as “elevating rail rear”) 20R is formed in a substantially U-shaped cross section with the front side in the vehicle front-rear direction opened, and is arranged with the vehicle vertical direction as the longitudinal direction. As shown in FIG. 3, when the rear side door 12 is viewed from the outside in the vehicle width direction, the lift rail rear 20R is disposed on the rear side in the vehicle front-rear direction of the rotation shaft 56 of the door handle 54 and The outer reinforcement 30 is arranged so as to cross the vehicle vertical direction.

  Here, in the outer reinforcement 30 that reinforces the belt line portion BL of the door outer panel 22 described above, a plurality of (three in this embodiment) through holes 32A, 32B, and 32C are formed as a plurality of weak portions. ing. These through holes 32A, 32B, 32C are formed in the outer reinforcement 30 at a portion between the front front end 52F of the door handle base 52 in the vehicle front-rear direction and the lift rail rear 20R with a space in the vehicle front-rear direction. Yes. Thereby, the rigidity (bending rigidity etc. of the vehicle width direction) of the periphery of each through-hole 32A, 32B, 32C in the outer reinforcement 30 is lower than the rigidity of other parts of the outer reinforcement 30. . For this reason, when the outer reinforcement 30 is pressed inward in the vehicle width direction by the door outer panel 22 at the time of a side collision, the outer reinforcement 30 starts from one of the through holes 32A, 32B, 32C in the vehicle width direction. It is easy to break.

  In FIG. 3, a part of a collision body (barrier) 60 simulating another vehicle that collides with the door outer panel 22 from the outside in the vehicle width direction is indicated by a two-dot chain line. The collision body 60 is formed in a rectangular shape having a long side in the vehicle front-rear direction when viewed from the outside in the vehicle width direction, and FIG. 3 shows an upper corner 60K in the rear part of the collision body 60. ing. The collision body 60 is configured to press the front side in the vehicle front-rear direction and the lower side in the vehicle vertical direction to the inside in the vehicle width direction with respect to the base front end 52F of the door handle base 52 in the door outer panel 22.

  Of the three through holes 32A, 32B, 32C formed in the outer reinforcement 30, the through hole 32A located closest to the base front end 52F side of the door handle base 52 is viewed from the outside in the vehicle width direction. The base front end 52F is positioned on a straight line L passing through the upper edge portion 52F1 and the corner portion 60K of the collision body 60.

  Next, the operation of the vehicle rear side door structure according to the embodiment will be described.

  As shown in FIG. 3, for example, when a portion of the door outer panel 22 below the base front end 52F of the door handle base 52 is pressed inward in the vehicle width direction by the collision body 60 described above, the door outer panel There is a possibility that a broken line not shown in FIG. 22 crosses the door handle 54 in the vehicle vertical direction. When such a broken line is generated in the door outer panel 22, the door handle base 52 attached to the door outer panel 22 is displaced inward in the vehicle width direction as shown by a two-dot chain line in FIG. There is a possibility that an inertia force F directed outward in the vehicle width direction acts on the door handle 54 and the door handle 54 is displaced outward in the vehicle width direction relative to the door handle base 52. That is, the inertial force F may cause the door handle 54 to rotate about the rotation shaft 56 (see FIG. 3) in the door lock releasing direction for releasing the restraint of the rear side door 12 by the door lock device 40.

  In particular, in the present embodiment, as shown in FIG. 3, when viewed from the outside in the vehicle width direction, the lift rail rear 20 </ b> R is located behind the rotating shaft 56 of the door handle 54 in the vehicle longitudinal direction and the door handle 54 is It is arranged across the direction. In this case, the area of the door glass 18 (see FIG. 1) can be increased as compared with the configuration in which the lifting rail rear 20R is positioned on the front side in the vehicle front-rear direction with respect to the rotation shaft 56 of the door handle 54. When the collision body 60 collides with the door outer panel 22, if the door outer panel 22 comes into contact with the lift rail rear 20R, a broken line is likely to be generated in the door outer panel 22 along the lift rail rear 20R. That is, a broken line is generated in the door outer panel 22 so as to cross the door handle 54 in the vehicle vertical direction on the rear side in the vehicle longitudinal direction of the rotation shaft 56 of the door handle 54, and the door handle 54 is rotated by the rotation shaft 56 (see FIG. 3). It becomes easy to rotate in the door unlocking direction around the center.

  On the other hand, in the present embodiment, the outer reinforcement 30 that reinforces the belt line portion BL of the door outer panel 22 is formed with a plurality of through holes 32A, 32B, and 32C as a plurality of fragile portions. These through holes 32A, 32B, and 32C are located between the base front end 52F of the door handle base 52 and the lift rail rear 20R. Thereby, the rigidity of the peripheral part of each through-hole 32A, 32B, 32C in the outer reinforcement 30 is lower than the rigidity of other parts in the outer reinforcement 30. That is, when the collision body 60 collides with the door outer panel 22 and the outer reinforcement 30 is pressed inward in the vehicle width direction by the door outer panel 22, the outer reinforcement 30 is in any of the through holes 32A, 32B, and 32C. It is easy to bend inward in the vehicle width direction from the starting point.

  For example, when the outer reinforcement 30 is folded inward in the vehicle width direction starting from the through hole 32A, the peripheral portion of the through hole 32A (folded portion of the outer reinforcement 30) and the base front end 52F of the door handle base 52 are moved. As a starting point, the door outer panel 22 is easily bent and deformed. That is, a broken line is likely to be generated in the door outer panel 22 along a straight line L passing through the through hole 32A of the outer reinforcement 30 and the base front end 52F of the door handle base 52. As a result, it is suppressed that a broken line crosses the door handle 54 in the vehicle vertical direction on the door outer panel 22. As described above, in this embodiment, when the area of the door outer panel 22 is pushed inward in the vehicle width direction while increasing the area of the door glass 18, the door handle 54 moves in the door unlocking direction. Can be suppressed.

  In the present embodiment, among the three through holes 32A, 32B, and 32C formed in the outer reinforcement 30, the through holes 32A, 32B, and 32C that are located closest to the base front end 52F of the door handle base 52 are provided in the vehicle. It is located on a straight line L passing through the upper edge 52F1 of the base front end 52F and the corner 60K of the collision body 60 when viewed from the outside in the width direction. As a result, when the diagonally lower portion of the door outer panel 22 is pressed inward in the vehicle width direction by the corner portion 60K of the collision body 60, the through hole 32A of the outer reinforcement 30 and the base front end of the door handle base 52 Starting from 52F, the door outer panel 22 is more easily bent and deformed inward in the vehicle width direction.

  Furthermore, the position of the broken line generated in the door outer panel 22 changes according to the shape of the collision body 60, the collision angle of the collision body 60 with respect to the door outer panel 22, and the like. In this embodiment, the outer reinforcement 30 has a plurality of through holes. 32A, 32B, and 32C are formed at intervals in the longitudinal direction of the vehicle. Accordingly, the door outer panel 22 is easily bent and deformed starting from any of the through holes 32A, 32B, 32C and the base front end 52F of the door handle base 52 according to the shape of the collision body 60 or the like.

  When the outer reinforcement 30 is folded rearward in the vehicle longitudinal direction with respect to the lift rail rear 20R, the fold line crosses the lift rail rear 20R below the outer reinforcement 30 when viewed from the outside in the vehicle width direction. 22 is likely to occur. In this case, a new broken line may occur in the door outer panel 22 from the intersection of the broken line and the lifting rail rear 20R so as to cross the door handle 54 in the vehicle vertical direction along the lifting rail rear 20R. On the other hand, in the present embodiment, the through-holes 32A, 32B, 32C are formed on the front side in the vehicle front-rear direction of the lift rail rear 20R in the outer reinforcement 30, so that the outer reinforcement 30 is in the vehicle front-rear direction than the lift rail rear 20R. Folding at the rear side is suppressed.

  Furthermore, the base front end 52F of the door handle base 52 extends from the handle front end 54F1 of the door handle 54 to the front side in the vehicle longitudinal direction. Accordingly, when the collision body 60 collides with the door outer panel 22 as compared with the configuration in which the base front end 52F of the door handle base 52 does not extend from the handle front end 54F1 of the door handle 54 to the front side in the vehicle front-rear direction. The door outer panel 22 is easily bent and deformed starting from the base front end 52F of the door handle base 52 at a position away from the front side in the vehicle longitudinal direction from 54. Accordingly, the occurrence of a broken line across the door handle on the door outer panel 22 is further suppressed.

  In the above embodiment, the plurality of through holes 32A, 32B, and 32C as the plurality of fragile portions are formed in the outer reinforcement 30. However, it is only necessary that at least one through hole is formed in the outer reinforcement 30. . Moreover, the magnitude | size and shape of the through-hole as a weak part can be changed suitably.

  Furthermore, the outer reinforcement 30 can be formed with, for example, a notch as a fragile portion, a slit, and a concave portion or a convex portion as a folded bead. That is, the outer reinforcement 30 can be formed with a weak portion appropriately selected from among a through hole, a notch, a slit, a concave portion, and a convex portion. Further, these through holes, notches, slits, recesses, and projections can be appropriately combined to form the outer reinforcement 30.

  As mentioned above, although one embodiment of the present invention has been described, the present invention is not limited to such an embodiment, and one embodiment and various modifications may be appropriately combined and the gist of the present invention may be used. Of course, various embodiments can be implemented without departing from the scope.

10 Vehicle Rear Side Door Structure 12 Rear Side Door (Vehicle Rear Side Door)
18 Door Glass 20R Door Glass Lifting Rail Rear 22 Door Outer Panel 30 Belt Line Outer Reinforcement 32A Through Hole (Vulnerable Part)
32B Through hole (fragile part)
32C Through hole (fragile part)
40 Door lock device 52 Door outside handle base 52F Base front end 54 Door outside handle 54F1 Handle front end 56 Rotating shaft BL Belt line part

Claims (3)

A door outer panel constituting an outer plate of a vehicle rear side door;
A door lock device provided on a rear end side in the vehicle front-rear direction of the door outer panel and on the inner side in the vehicle width direction and restraining the vehicle rear side door to the vehicle body;
A belt line outer reinforcement provided along the belt line portion of the door outer panel on the inner side in the vehicle width direction of the door outer panel;
A door outside handle base disposed at a rear end side of the door outer panel in the vehicle front-rear direction and below the belt line outer reinforcement, and attached to an inner side of the door outer panel in the vehicle width direction;
A vehicle front-rear direction is disposed outside the door outer panel in the vehicle width direction as a longitudinal direction, and the door outer side is connected to the door lock device and a front end in the vehicle front-rear direction extends through a rotating shaft extending in the vehicle vertical direction. A door outside handle that is rotatably supported by the handle base and is rotated to release the restraint by the door lock device;
Provided between the door outer panel and the door lock device, as viewed from the outside in the vehicle width direction, crosses the door outside handle in the vehicle up-down direction behind the rotating shaft in the vehicle front-rear direction and door glass A door glass elevating rail rear for supporting the elevating and lowering,
A belt line outer reinforcement is formed between the front front end of the door outside handle base in the vehicle front-rear direction and the rear of the door glass elevating rail as viewed from the outside in the vehicle width direction, than the front front end of the door outer panel. when the site of the lower vehicle longitudinal direction front side and the vehicle vertical direction is pressed inward in the vehicle width direction, and a fragile portion which becomes a starting point of the bending deformation of the door outer panel with said base front end,
Rear side door structure for vehicles with The base front end extends from the front end of the door outside handle in the vehicle front-rear direction to the front side in the vehicle front-rear direction.
The rear side door structure for a vehicle according to claim 1. In the beltline outer reinforcement, a plurality of the weak parts are spaced in the vehicle front-rear direction. Formed with a gap,
The vehicle rear side door structure according to claim 1 or 2.

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