JP2013237294A - Rear side door structure for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door structure for a vehicle in which a door is hardly unlocked when collision occurs.SOLUTION: A gap filling member 26 filling a gap between a fixed glass 20 and a door outer panel 14 is disposed on the outer part in a vehicle width direction of the fixed glass 20 separated from a door glass 18 by a division bar 24. This gap filling member improves the rigidity of the fixed glass 20 side. As a result, the inward deformation of the door outer panel 14 in the vehicle width direction at a lateral collision is suppressed or prevented by the gap filling member 26. In other words, a polygonal line resulting from the inward deformation of the door outer panel 14 in the vehicle width direction can be located closer to the front of the vehicle than the division bar 24. This reduces relative displacement between the door handle 38 and the door outer panel 14 caused by an inertia force of the door handle 38 produced by the inward deformation of the door outer panel 14 in the vehicle width direction. Hence a door is hardly unlocked when the lateral collision occurs.

Description

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

  A door outside handle (hereinafter simply referred to as “door handle”) provided with a lever arm on the front end side in the longitudinal direction of the vehicle and a lever arm that is fixed to the door outer panel and rotates inside the vehicle outer side of the door outer panel 2. Description of the Related Art A vehicle door structure including a hinge bracket that can be supported 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 with a partition sash (division bar) that supports the door glass in a side view of the vehicle. For this reason, when a side collision load is input to the front side of the hinge bracket on the door outer panel in the vehicle front-rear direction due to a vehicle side collision (hereinafter simply referred to as “side collision”), the hinge bracket contacts the partition sash. As a result, the rotation of the door handle in the door lock release direction is suppressed.

JP 2009-262786 A

  However, in this prior art, when a side impact load is input to the front portion of the hinge bracket on the door outer panel in the front-and-rear direction of the vehicle and the lower portion of the vehicle in the vertical direction, a broken line ( When deformation wrinkles occur, the following are concerned.

  That is, while the hinge bracket fixed to the door outer panel is displaced inward in the vehicle width direction, the door handle tends to be displaced outward in the vehicle width direction relative to the hinge bracket by inertial force. If the relative displacement between the door handle and the door outer panel increases due to the inertial force, the door lock may be released and the side door may be opened.

  In view of the above facts, an object of the present invention is to obtain a vehicle door structure in which a door lock is hardly released in a side collision.

  The rear side door structure for a vehicle according to claim 1 is provided on a door outer panel constituting an outer plate of the rear side door, is supported so as to be swingable along the vehicle width direction, and swings outward in the vehicle width direction. The rear side door is disposed between the door outer handle that opens the closed rear side door by the door, the door inner panel constituting the inner plate of the rear side door, and the door outer panel, and extends along the vehicle vertical direction. The elevator glass for opening and closing the opening formed on the upper side of the door is guided, and the lower end side of the division bar is arranged to face the door outside handle in the vehicle width direction, and the elevator glass is divided by the division bar. Vehicle width direction of the fixed glass supported on the rear side of the vehicle with respect to the division bar Provided on the side, and a, and suppresses space reducing member the deformation of the vehicle width direction inside bridge the gap between the fixed glass and the door outer panel.

  In the first aspect of the invention, the rear side door includes a door outer panel that constitutes the outer plate and a door inner panel that constitutes the inner plate. A door handle is swingably supported along the vehicle width direction on the door outer panel, and the closed rear side door is opened by swinging the door handle outward in the vehicle width direction.

  In addition, a division bar extends along the vehicle vertical direction between the door outer panel and the door inner panel, and a lifting glass that opens and closes an opening formed on the upper side of the side door by the division bar guides. Is done. And the fixed glass is provided in the vehicle rear side rather than the division bar, The said fixed glass is distinguished from the raising / lowering glass by the division bar.

  Here, the lower end side of the division bar is arranged facing the door handle in the vehicle width direction. As a result, the rigidity around the door handle is enhanced. And in this invention, the gap filling member which fills the clearance gap between the said fixed glass and a door outer panel and suppresses the deformation | transformation of the said door outer panel to the vehicle width direction inside is provided in the vehicle width direction outer side of fixed glass. This enhances the rigidity on the fixed glass side (the rear side of the division bar in the vehicle front-rear direction).

  Generally, laminated glass is used for the lift glass, and tempered glass is used for the fixed glass. These are formed so that the impact strength is high, but the laminated glass is formed so as to have a higher tension and less breakage than the tempered glass. In short, fixed glass is easier to break than elevating glass.

  For example, when the front side and the diagonally lower part of the door handle on the door outer panel in the vehicle longitudinal direction are pressed inward in the vehicle width direction, the door outer panel contacts the division bar, and the vehicle width direction along the division bar. Deforms inward. At this time, a fold line (starting point of fold deformation) is generated in the door outer panel, but this fold line may be generated on the fixed glass side, that is, on the rear side of the division bar in the vehicle front-rear direction.

  Here, since the lower end side of the division bar is arranged facing the door handle in the vehicle width direction, the broken line is formed so as to cross the door handle along the vehicle vertical direction. In this case, there is a possibility that the relative displacement between the door handle and the door outer panel increases due to the inertial force of the door handle acting by the deformation of the door outer panel in the vehicle width direction, and the door lock is released. .

  Therefore, in the present invention, the rigidity on the fixed glass side is enhanced by filling the gap between the fixed glass and the door outer panel with a gap filling member that suppresses the deformation of the door outer panel in the vehicle width direction. On the fixed glass side, deformation of the door outer panel inward in the vehicle width direction at the time of a side collision is suppressed or prevented, so that the broken line accompanying the deformation of the door outer panel inward in the vehicle width direction is behind the division bar in the vehicle front-rear direction. It can be prevented from being formed on the side.

  Therefore, it is suppressed or prevented that the broken line formed in the door outer panel crosses along the vehicle vertical direction of the door handle at the time of a side collision. Thereby, the relative displacement amount of the door handle and the door outer panel due to the inertial force of the door handle acting by the deformation of the door outer panel in the vehicle width direction can be reduced.

  The vehicle rear side door structure according to claim 2 is the vehicle rear side door structure according to claim 1, wherein a belt line outer reinforcement is provided on the inner side of the door outer panel in the vehicle width direction along a belt line portion of the door outer panel. In the outer reinforcement, a weaker portion is provided on the front side in the vehicle front-rear direction at a position facing the division bar in the vehicle width direction than the other portions in the belt line outer reinforcement.

  As described above, in the first aspect of the present invention, the gap between the fixed glass and the door outer panel is filled with the gap filling member that suppresses the deformation of the door outer panel inward in the vehicle width direction. Stiffness is reinforced on the rear side of the direction. This prevents a fold line associated with the deformation of the door outer panel inward in the vehicle width direction at the time of a side collision from being formed on the rear side of the division bar in the vehicle front-rear direction.

  On the other hand, in the invention according to claim 2, a belt line outer reinforcement (hereinafter simply referred to as “outer reinforcement”) is provided along the belt line portion of the door outer panel inside the door outer panel in the vehicle width direction. Yes. Since the outer reinforcement is a so-called reinforcing member, the rigidity of the belt line portion is enhanced by providing the outer reinforcement on the belt line portion of the door outer panel. Here, a fragile portion is provided on the front side in the vehicle front-rear direction at a position facing the division bar in the outer reinforcement in the vehicle width direction, and is set to be more fragile than other portions in the outer reinforcement. ing.

  That is, here, the necessary rigidity is ensured in the door outer panel, and when the outer reinforcement is pressed inward in the vehicle width direction by the door outer panel at the time of a side collision, the outer reinforcement starts from the fragile portion. It is easy to bend inward of the direction. Thereby, the broken line accompanying the deformation | transformation to the vehicle width direction inside of a door outer panel can be formed in the front side of the vehicle front-back direction of a division bar.

  A vehicle rear side door structure according to a third aspect is the vehicle rear side door structure according to the second aspect, wherein the fragile portions are a plurality of holes formed along the vehicle front-rear direction of the beltline outer reinforcement.

  At the time of a side collision, the position of the broken line generated in the door outer panel changes according to the shape of the collision body, the collision angle of the collision body with respect to the door outer panel, and the like. For this reason, in the invention according to claim 3, by forming a plurality of hole portions along the vehicle front-rear direction of the outer reinforcement as the fragile portion, the door outer panel is bent and deformed starting from one of the hole portions. be able to.

  The vehicle rear side door structure according to claim 4 is the vehicle rear side door structure according to claim 2 or 3, wherein the weakened portion is a portion of the beltline outer reinforcement facing the division bar in the vehicle width direction and the door outside handle. Is formed between a front end portion in the vehicle front-rear direction and a portion facing in the vehicle width direction.

  In general, at the time of a side collision, the center part of the door outer panel in the vehicle front-rear direction and the lower part of the vehicle up-down direction are often pressed inward in the vehicle width direction. A broken line is formed from the corner toward the door handle.

  For this reason, in the invention according to claim 4, in the outer reinforcement, the fragile portion includes a portion facing the division bar and the vehicle width direction, a front end portion of the door handle in the vehicle front-rear direction, and a portion facing the vehicle width direction. It is formed between. Therefore, a broken line of the door outer panel is formed along a straight line connecting the center side of the door outer panel in the vehicle front-rear direction, the front side of the door handle in the vehicle front-rear direction, and the fragile portion.

  As described above, the vehicle rear side door structure according to the first aspect of the invention has an excellent effect that the door lock is difficult to be released at the time of a side collision.

  The rear side door structure for a vehicle according to the second aspect of the invention has an excellent effect that the door outer panel can secure necessary rigidity and can be bent and deformed starting from the fragile portion at the time of a side collision.

  In the rear side door structure for a vehicle according to the invention described in claim 3, the door outer panel can be bent and deformed starting from the fragile portion regardless of the shape of the collision body at the time of a side collision and the collision angle of the collision body with respect to the door outer panel. It has the excellent effect of being able to.

  The rear side door structure for a vehicle according to the invention described in claim 4 has an excellent effect that the broken line of the door outer panel can be suppressed so as not to cross the door handle along the vehicle vertical direction.

1 is a vehicle side view showing a rear side door to which a vehicle rear side door structure according to an embodiment is applied. It is a principal part expanded vertical sectional view which shows the state cut | disconnected along 2-2 line | wire of FIG. It is a principal part expanded horizontal sectional view which shows the state cut | disconnected along the 3-3 line of FIG. It is a principal part expansion perspective view which shows the vehicle to which the rear side door structure for vehicles which concerns on this Embodiment was applied seeing from the outer side diagonally forward. FIG. 5 is an essential part enlarged vertical sectional view showing a state cut along line 5-5 in FIG. 4. It is a principal part expanded side view which shows the state by which the door outer panel was abbreviate | omitted in FIG.

  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.

(Configuration of rear side door structure for vehicle)
FIG. 1 shows, as an example, a rear side door 10 to which the vehicle rear side door structure according to the present embodiment is applied. The rear side door 10 opens and closes a door opening 12 (see FIG. 4) formed on the side of the vehicle body, and serves as a door hinge of a center pillar (not shown) that constitutes the front edge of the door opening 12 in the vehicle front-rear direction. It is rotatably supported.

  As shown in FIG. 3, the rear side door 10 includes a door outer panel 14 that is disposed on the outer side in the vehicle width direction of the rear side door 10 and constitutes an outer plate, and an inner plate that is disposed on the inner side of the rear side door 10 in the vehicle width direction. A door inner panel 16 to be operated.

  Further, the door outer panel 14 and the door inner panel 16 face each other in the vehicle width direction, and the peripheral edge portion of the door outer panel 14 and the peripheral edge portion of the door inner panel 16 are coupled to each other by hemming. In this state, a hollow portion 17 is provided between the door outer panel 14 and the door inner panel 16. In the hollow portion 17, a door glass 18 as a raising and lowering glass, a door glass raising and lowering device (window regulator) for raising and lowering the door glass 18, a fixed glass 20 and the like are disposed.

  As shown in FIG. 1, a door frame 22 constituting a window frame is provided at an upper portion of the rear side door 10, and a division along the vehicle vertical direction is provided on the rear side of the door frame 22 in the vehicle front-rear direction. A bar 24 is provided. The door glass 18 is guided between the division bar 24 and the front frame 22F positioned at the front of the door frame 22 in the front-rear direction of the vehicle. The fixed glass 20 is supported between the division bar 24 and the rear frame 22R located at the rear of the door frame 22 in the vehicle front-rear direction.

  4 and 5, the gap between the fixed glass 20 and the door outer panel 14 is filled on the outer side in the vehicle width direction of the fixed glass 20, and the deformation of the door outer panel 14 toward the inner side in the vehicle width direction is suppressed. A gap filling member 26 is provided. The gap filling member 26 is formed of a hard rubber member, and has a rectangular cross-sectional shape cut along the vehicle width direction.

  Generally, the outer edge portion of the fixed glass 20 is sandwiched by a U-shaped glass run (a shape in which a member 26 (a gap filling member described later) and a member 28 (a part of the glass run) are combined). ing. However, here, for example, on the outer side in the vehicle width direction of the glass run, a gap filling member 26 is provided instead of the glass run. The gap filling member 26 is formed so as to be slightly hung on the upper end portion 14 </ b> A of the door outer panel 14 in a state where the gap filling member 26 is fitted in the gap between the fixed glass 20 and the door outer panel 14.

  On the other hand, as shown in FIG. 2, a door outside handle device (hereinafter also simply referred to as “door handle device”) 30 is provided below the division bar 24 on the inner side of the door outer panel 14 in the vehicle width direction. ing. Further, an outer reinforcement 32 as a belt line outer reinforcement that reinforces the belt line portion BL of the door outer panel 14 is provided inside the door outer panel 14 in the vehicle width direction.

  The outer reinforcement 32 faces the door outer panel 14 in the vehicle width direction, and extends in the vehicle front-rear direction along the belt line portion BL of the door outer panel 14. Flange portions 32 </ b> A and 32 </ b> B are provided at upper and lower ends of the outer reinforcement 32, respectively. These flange portions 32A and 32B are coupled to the door outer panel 14 at important points. Accordingly, the outer reinforcement 32 and the door outer panel 14 form a closed cross-sectional structure.

  A door lock device 34 is provided between the door outer panel 14 and the door inner panel 16 to restrain the rear side door 10 to a vehicle body (not shown). The door lock device 34 is fixed to the door inner panel 16 via lock reinforcement (not shown). The door lock device 34 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 10 is restrained by the rear pillar. The door lock device 34 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 10 with respect to the rear pillar.

  On the other hand, the door handle device 30 includes a door outside handle base (hereinafter referred to as “door handle base”) 36 and a door handle 38. As shown in FIGS. 2 and 6, the door handle base 36 is disposed below the outer reinforcement 32 (lower side in the vehicle up-down direction) with the vehicle front-rear direction as the longitudinal direction, and the door handle base 36 is not shown by a bolt or the like (not shown). It is attached to the inner side of the outer panel 14 in the vehicle width direction. In addition, illustration of the door outer panel 14 is abbreviate | omitted in FIG.

  Further, the base front end 36F positioned at the front portion of the door handle base 36 in the vehicle front-rear direction extends to the front side of the vehicle front-rear direction than the handle front end 38F positioned at the front portion of the door handle 38 in the vehicle front-rear direction. . The front end portion 36F1 of the base front end 36F is formed along the vehicle vertical direction.

  The door handle 38 is disposed outside the door outer panel 14 in the vehicle width direction. The door handle 38 is arranged with the longitudinal direction of the vehicle as a longitudinal direction, and an intermediate portion in the longitudinal direction serves as a gripping portion 38A. A front end 38F1 of the handle front end 38F of the door handle 38 is disposed inside the door outer panel 14 in the vehicle width direction through an opening (not shown) formed in the door outer panel 14 and extends in the vehicle vertical direction. The door handle base 36 is rotatably supported on the front end side in the vehicle longitudinal direction.

  The rear end portion 38R of the door handle 38 in the vehicle front-rear direction is connected to the release lever of the door lock device 34 (see FIG. 3) described above via a cable (not shown). As a result, the occupant grips the grip portion 38A of the door handle 38 and rotates the door handle 38 to the outside in the vehicle width direction (in the door unlocking direction) around the rotation shaft 40. The door lock device 34 is actuated by a release lever via a cable connected to the portion 38R. As a result, the engagement between the striker and the latch (not shown) is released, and the restraint of the rear side door 10 with respect to the rear pillar is released.

  As shown in FIG. 6, the division bar 24 has the door handle 38 on the rear side in the vehicle front-rear direction of the rotation shaft 40 of the door handle 38 when the rear side door 10 is viewed from the outside in the vehicle width direction. And the outer reinforcement 32 is arranged so as to cross the vehicle vertical direction.

  Here, in the outer reinforcement 32 that reinforces the belt line portion BL (see FIG. 3) of the door outer panel 14 (see FIG. 3), the through holes 33A, 33B, and 33C as weak portions are spaced in the vehicle front-rear direction. A plurality (three in this embodiment) are formed with a gap. These through holes 33 </ b> A, 33 </ b> B, 33 </ b> C are provided on the front side in the vehicle front-rear direction of the division bar 24 in the outer reinforcement 32.

  Specifically, the through holes 33A, 33B, and 33C are formed at the front end portion of the division bar 24 (the portion facing the division bar 24 in the vehicle width direction) and the base front end 36F of the door handle base 36 in the outer reinforcement 32. 36F1 is formed between a portion indicated by a line P extending upward of the vehicle (a front end portion of the door handle 38 in the vehicle front-rear direction and a portion facing the vehicle width direction).

  Thereby, the rigidity (bending rigidity etc. of the vehicle width direction) of the peripheral part of each through-hole 33A, 33B, 33C in the outer reinforcement 32 is lower than the rigidity of the other part of the outer reinforcement 32. For this reason, when the outer reinforcement 32 is pressed inward in the vehicle width direction by the door outer panel 14 at the time of a side collision, the outer reinforcement 32 starts from the through holes 33A, 33B, 33C in the vehicle width direction. It is easy to fold inward.

  In FIG. 6, a part of a collision body (barrier) 42 simulating another vehicle that collides with the door outer panel 14 (see FIG. 2) from the outside in the vehicle width direction is indicated by a two-dot chain line. . The collision body 42 is formed in a rectangle having a long side in the vehicle front-rear direction as a whole when viewed from the outside in the vehicle width direction, and an upper corner 42K at the rear part of the collision body 42 is shown. The collision body 42 is configured to press the front side in the vehicle front-rear direction and the lower side in the vehicle vertical direction toward the inside in the vehicle width direction with respect to the front end 36F of the door handle base 36 in the door outer panel 14 (see FIG. 2). It has become.

  Of the three through holes 33A, 33B, 33C formed in the outer reinforcement 32, the through hole 33A located closest to the base front end 36F side of the door handle base 36 is viewed from the outside in the vehicle width direction. The base front end 36F is disposed on a straight line L (so-called broken line) passing through the upper edge 36F2 and the corner 42K of the collision body 42. The straight line L is a line from the corner of the collision body 42 toward the front side of the door handle 38 in the vehicle front-rear direction.

(Operation and effect of rear side door structure for vehicles)
Next, the operation and effect of the vehicle rear side door structure according to the embodiment will be described.

  As shown in FIG. 6, when a portion of the door outer panel 14 that is obliquely below the base front end 36F of the door handle base 36 is pressed inward in the vehicle width direction by the collision body 42, the door outer panel shown in FIG. When 14 contacts the division bar 24, the door outer panel 14 is deformed inward in the vehicle width direction along the division bar 24. At this time, a broken line may be generated in the door outer panel 14 due to the deformation.

  In general, laminated glass is used for the door glass 18 shown in FIG. 1 and tempered glass is used for the fixed glass 20. These are formed so that the impact strength is high, but the laminated glass is formed so as to have a higher tension and less breakage than the tempered glass. In short, the fixed glass 20 is easier to break than the door glass 18.

  For this reason, the broken line which generate | occur | produces in the door outer panel 14 may arise in the rear side of the fixed glass 20 side, ie, the vehicle front-back direction of the division bar 24. FIG. Since the lower end side of the division bar 24 is disposed to face the door handle 38, the broken line is formed so as to cross the door handle 38 along the vehicle vertical direction.

  That is, as indicated by a two-dot chain line in FIG. 2, the door handle base 36 attached to the door outer panel 14 is displaced inward in the vehicle width direction, while the door handle 38 is moved to the door handle base 36 by the inertial force F. On the other hand, it is displaced outward in the vehicle width direction. When the relative displacement between the door handle 38 and the door outer panel 14 increases due to the inertial force F, the door handle 38 is relative to the door outer panel 14 about the rotation shaft 40 (see FIG. 6). Will swing. As a result, there is a possibility that the door handle 38 rotates in the door lock releasing direction for releasing the restraint of the rear side door 10 by the door lock device 34.

  However, in this embodiment, as shown in FIG. 4, the gap between the fixed glass 20 and the door outer panel 14 is filled outside the fixed glass 20 in the vehicle width direction, and the door outer panel 14 is deformed inward in the vehicle width direction. A suppressing gap member 26 is provided. Thereby, rigidity is strengthened in the fixed glass 20 side. Therefore, when a portion of the door outer panel 14 (see FIG. 4), which is diagonally below the base front end 36F of the door handle base 36, is pressed inward in the vehicle width direction by the collision body 42 shown in FIG. 4), the deformation of the door outer panel 14 toward the inner side in the vehicle width direction (the broken line Q shown by the two-dot chain line in FIG. 3) is caused by the gap filling member 26 shown in FIG. Suppressed or prevented. Therefore, a fold line (a fold line R indicated by a two-dot chain line in FIG. 3) accompanying the deformation of the door outer panel 14 in the vehicle width direction inside is on the vehicle front side with respect to the division bar 24.

  Thereby, it is suppressed or prevented that the broken line (the broken line R shown by the two-dot chain line in FIG. 3) crosses the door handle 38 along the vehicle vertical direction, and the door outer panel 14 is deformed inward in the vehicle width direction. Therefore, the relative displacement amount between the door handle 38 and the door outer panel 14 due to the inertial force of the door handle 38 can be reduced. That is, it is difficult to release the door lock of the rear side door 10 at the time of a side collision.

  Further, in the present embodiment, as shown in FIG. 6, the outer reinforcement 32 that reinforces the belt line portion BL of the door outer panel 14 (see FIG. 1) has a plurality of through holes 33 </ b> A and 33 </ b> B as a plurality of weak portions. , 33C are formed. That is, the rigidity of the peripheral portions of the through holes 33A, 33B, and 33C in the outer reinforcement 32 is lower than the rigidity of other portions in the outer reinforcement 32.

  Therefore, when the collision body 42 collides with the door outer panel 14 and the outer reinforcement 32 is pressed inward in the vehicle width direction by the door outer panel 14 (see FIG. 1), the outer reinforcement 32 is in any through hole. It is easy to bend inward in the vehicle width direction starting from 33A, 33B, 33C.

  These through holes 33 </ b> A, 33 </ b> B, and 33 </ b> C are located between the base front end 36 </ b> F of the door handle base 36 and the division bar 24 in the outer reinforcement 32. For this reason, for example, when the outer reinforcement 32 is folded inward in the vehicle width direction starting from the through hole 33A, the peripheral portion of the through hole 33A (folded portion of the outer reinforcement 32) and the base front end 36F of the door handle base 36 are provided. As a starting point, the door outer panel 14 (see FIG. 1) is easily bent and deformed.

  That is, a straight line that passes through the through hole 33A of the outer reinforcement 32 and the base front end 36F of the door handle base 36 with the through holes 33A, 33B, 33C as starting points of bending deformation of the door outer panel 14 (see FIG. 1) at the time of a side collision A broken line is likely to be generated in the door outer panel 14 along L. That is, a fold line (a fold line R indicated by a two-dot chain line in FIG. 3) associated with the deformation of the door outer panel 14 in the vehicle width direction can be formed on the front side of the division bar 24 in the vehicle front-rear direction. In the door outer panel 14, it can further suppress that a broken line generate | occur | produces so that the door handle 38 may be crossed along a vehicle up-down direction. Therefore, in the present embodiment, the rotation of the door handle 38 in the door lock releasing direction can be suppressed when the vehicle diagonally lower portion of the door outer panel 14 is pressed inward in the vehicle width direction.

  Further, since the outer reinforcement 32 shown in FIG. 1 is a so-called reinforcing member, the rigidity of the belt line portion BL is enhanced by providing the outer reinforcement 32 in the belt line portion BL of the door outer panel 14. . On the other hand, by forming weak portions such as the through holes 33A, 33B, 33C, etc. in the outer reinforcement 32, the rigidity is lower than other portions where the weak portions are not formed in the outer reinforcement 32. Yes.

  That is, in the present embodiment, the door outer panel 14 secures necessary rigidity, and when the outer reinforcement 32 is pressed inward in the vehicle width direction by the door outer panel 14 at the time of a side collision, the fragile portion is the starting point. The outer reinforcement 32 is easily bent inward in the vehicle width direction.

  In the present embodiment, as shown in FIG. 6, among the three through holes 33 </ b> A, 33 </ b> B, 33 </ b> C formed in the outer reinforcement 32, the through hole located closest to the base front end 36 </ b> F of the door handle base 36. 33A is located on a straight line L passing through the upper edge portion 36F2 of the base front end 36F and the corner portion 42K of the collision body 42 as viewed from the outside in the vehicle width direction.

  Thereby, when the vehicle diagonally lower portion of the door outer panel 14 (see FIG. 1) is pressed inward in the vehicle width direction by the corner portion 42K of the collision body 42, the through hole 33A of the outer reinforcement 32 and the door handle Starting from the base front end 36F of the base 36, the door outer panel 14 is further easily bent and deformed inward in the vehicle width direction. That is, a broken line (folded line R indicated by a two-dot chain line in FIG. 3) of the door outer panel 14 is generated on the front side of the division bar 24 in the vehicle longitudinal direction.

  Further, since the position of the broken line generated in the door outer panel 14 changes according to the shape of the collision body 42, the collision angle of the collision body 42 with respect to the door outer panel 14 (see FIG. 1), etc., in this embodiment, the outer reinforcement 32 is provided. A plurality of through holes 33A, 33B, and 33C are formed at intervals in the vehicle front-rear direction. As a result, the door outer panel 14 is easily bent and deformed starting from any of the through holes 33A, 33B, 33C and the base front end 36F of the door handle base 36, depending on the shape of the collision body 42 and the like.

  A base front end 36F of the door handle base 36 extends from the handle front end 38F of the door handle 38 to the front side in the vehicle longitudinal direction. Accordingly, when the collision body 42 collides with the door outer panel 14 as compared with the configuration in which the base front end 36F of the door handle base 36 does not extend from the handle front end 38F of the door handle 38 to the front side in the vehicle front-rear direction. The door outer panel 14 (see FIG. 1) is easily bent and deformed starting from the base front end 36F of the door handle base 36 at a position away from the front side in the vehicle front-rear direction from 38. Therefore, it is further suppressed that the broken line formed in the door outer panel 14 crosses the door handle 38.

(Supplement of embodiment)
In the present embodiment, as illustrated in FIG. 5, the gap filling member 26 has been described as an example in relation to a glass run. However, the gap filling member 26 fills a gap between the fixed glass 20 and the door outer panel 14. As long as it is possible to do so, glass runs and the like are not necessarily related. Further, in this embodiment, the gap filling member 26 is formed so as to be slightly hung on the upper end portion 14A of the door outer panel 14, but covers the upper end portion 14A of the door outer panel 14 (the upper end portion of the belt line portion BL is configured). It may be shaped as follows. Further, in the present embodiment, the gap filling member 26 formed of a hard rubber member has been described. However, the gap filling member 26 is not limited to a hard rubber member. For example, at least a part of the gap filling member includes an iron plate. Etc. may be included.

  In the present embodiment, as shown in FIG. 6, the outer reinforcement 32 is formed with a plurality of through holes 33A, 33B, and 33C as a plurality of weakened portions, but the outer reinforcement 32 has at least a through hole 33A. As long as the is formed. Further, the number, size, and shape of the through holes as the fragile portions can be appropriately changed. Further, the through holes 33A, 33B, and 33C are formed between the division bar 24 and the base front end 36F of the door handle base 36 in the outer reinforcement 32, but are formed on the vehicle front side with respect to the division bar 24. This is not the only position that needs to be used.

  In addition, the outer reinforcement 32 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 32 can be formed with a fragile 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, concave portions, and convex portions can be appropriately combined to form the outer reinforcement 32.

  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 Rear side door (Vehicle rear side door structure)
14 Door outer panel 16 Door inner panel 18 Door glass (elevating glass)
20 Fixed glass 24 Division bar 26 Gap filling member 32 Outer reinforcement (Beltline outer reinforcement)
33A Through hole (fragile part)
33B Through hole (fragile part)
33C Through hole (fragile part)
38 Door handle (door outside handle)

Claims (4)

A door outside handle that is provided on a door outer panel that constitutes an outer plate of the rear side door, is supported so as to be swingable along the vehicle width direction, and opens the closed rear side door by swinging outward in the vehicle width direction. When,
A lifting glass disposed between a door inner panel constituting the inner plate and the door outer panel in the rear side door and extending along a vehicle vertical direction to open and close an opening formed on an upper side of the rear side door. A guide bar and a lower end side of the division bar arranged opposite to the door outside handle in the vehicle width direction;
Provided on the vehicle width direction outside of the fixed glass that is separated from the elevating glass by the division bar and supported on the vehicle rear side of the division bar, and fills the gap between the fixed glass and the door outer panel. A gap filling member that suppresses deformation inward in the vehicle width direction;
A vehicle rear side door structure. A belt line outer reinforcement is 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,
The fragile part weaker than the other part in the belt line outer reinforcement is provided on the front side in the vehicle front-rear direction at a position facing the division bar in the belt width direction in the belt line outer reinforcement. 2. The rear side door structure for a vehicle according to 1.   The vehicle rear side door structure according to claim 2, wherein the fragile portions are a plurality of holes formed along a vehicle front-rear direction of the beltline outer reinforcement.   In the beltline outer reinforcement, the fragile portion is formed between a portion facing the division bar in the vehicle width direction, a front end portion of the door outside handle in the vehicle front-rear direction, and a portion facing the vehicle width direction. The rear side door structure for a vehicle according to claim 2 or 3, wherein:

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