JP2008260317A - Side structure of vehicle body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the transmitting efficiency of a lateral collision load from a vehicle door to a vehicle body while preventing an interference of the body with a load transmitting member when the door is opened and closed. <P>SOLUTION: The load transmitting member 18 is installed between the front end 14A (on the hinge side) of the vehicle door 14 and that part of a pillar 12 (vehicle body) which is positioned inside the front end 14A about the direction across the vehicle width, and when the door 14 is being opened, the member 18 rotates in such a fashion as avoiding interference with the pillar 12 through a link mechanism 16. This can narrow the gap between the member 18 and the pillar 12, and it is possible to construct the member 18 in a greater size. In case a lateral collision impact is applied to the door 14 when the door 14 is shut, the load is transmitted efficiently from the door front end 14A to the pillar 12 through the member 18. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle body side part structure in consideration of a side collision.

  A load transmission member is arranged in the gap between the front end of the impact beam and the pillar, and the side impact load input at the time of a side collision is transmitted from the front end of the impact beam to the pillar (vehicle body) via the load transmission member. A structure is disclosed (see Patent Document 1).

JP 2006-321444 A JP 2001-310663 A

  However, as described in the above-described conventional example, when the load transmitting member is disposed on the vehicle body side, the rotation locus of the front end portion of the door when the door is opened and closed is taken into consideration. It was necessary to provide a load transmission member so as to avoid it, and it was difficult to increase the size of the load transmission member.

  In view of the above fact, an object of the present invention is to improve the transmission efficiency of a side impact load from a vehicle door to the vehicle body side while preventing interference between the vehicle body and the load transmission member when the door is opened and closed.

  According to a first aspect of the present invention, there is provided a vehicle door provided to be openable / closable with respect to a vehicle body via a hinge, a link mechanism configured to be interlocked with opening / closing of the vehicle door, and the vehicle door. It is disposed between the hinge-side end portion and a portion of the vehicle body that is located on the inner side in the vehicle width direction of the end portion, and is provided so as to be rotatable with respect to the end portion and coupled to the link mechanism. And a load transmission member that rotates so as to avoid interference with the vehicle body during the opening operation of the vehicle door.

  In the vehicle body side structure according to claim 1, a load transmission member provided between a hinge-side end portion of the vehicle door and a portion of the vehicle body located on the inner side in the vehicle width direction of the end portion, During the opening operation of the vehicle door, the vehicle is rotated so as to avoid interference with the vehicle body via the link mechanism. Therefore, even when the load transmission member is enlarged or the gap between the load transmission member and the vehicle body is reduced, it is possible to prevent interference between the load transmission member and the vehicle body when the door is opened and closed. It is. On the other hand, if the vehicle door is subjected to a side collision when the vehicle door is closed, a side impact load is transmitted from the hinge-side end of the vehicle door to the vehicle body via the load transmission member. . As described above, the load transmission member can be increased in size and the gap between the load transmission member and the vehicle body can be reduced, so that the transmission efficiency of the side impact load from the vehicle door to the vehicle body side can be increased. Can do.

  According to a second aspect of the present invention, in the vehicle body side part structure according to the first aspect, the link mechanism is rotatable to the vehicle body among door check mechanisms for increasing or decreasing the opening / closing operation load of the vehicle door. It is connected to a connected check arm.

  In the vehicle body side part structure according to claim 2, the link mechanism is connected to a check arm that is rotatably connected to the vehicle body among door check mechanisms for increasing and decreasing the vehicle door opening / closing operation load. Therefore, the link mechanism can be operated in conjunction with the movement of the check arm when the door is opened and closed, and the load transmission member can be rotated via the link mechanism. By using a check arm conventionally used for a vehicle door, an increase in the number of parts can be suppressed.

  According to a third aspect of the present invention, in the vehicle body side part structure according to the first or second aspect, a door that extends in the vehicle front-rear direction in the vehicle door is provided outside the load transmitting member in the vehicle width direction. It is characterized in that the end of the reinforcing member is arranged.

  In the vehicle body side part structure according to claim 3, since the end portion of the door reinforcing member extending in the vehicle front-rear direction in the vehicle door is disposed outside the load transmitting member in the vehicle width direction, the vehicle When the side door receives a side collision, the side collision load is transmitted to the load transmission member via the door reinforcing member, and further transmitted to the vehicle body via the load transmission member. For this reason, even if a side collision occurs at a portion of the vehicle door that is out of the position where the load transmitting member is disposed, the side collision load can be efficiently transmitted to the vehicle body.

  According to a fourth aspect of the present invention, in the vehicle body side part structure according to any one of the first to third aspects, the load transmitting member is a load transmitting member that is closely opposed to the vehicle body in the vehicle width direction when the door is closed. And a side of the end of the load transmission surface that is closer to the vehicle body when the vehicle door is closed is chamfered corresponding to the rotation trajectory of the load transmission surface. It is a feature.

  In the vehicle body side structure according to claim 4, the load transmission member has a load transmission surface that is close to and opposed to the vehicle body in the vehicle width direction when the door is closed. The side that comes closer to the vehicle body when the door is closed is chamfered corresponding to the rotation trajectory of the load transmission surface, so that the load transmission member and the vehicle body can be prevented from interfering with each other when the door is opened and closed. The gap between the transmission member and the vehicle body can be further narrowed. For this reason, at the time of a side collision, the side collision load can be transmitted to the vehicle body earlier, and the reaction force from the vehicle body can be generated earlier.

  As described above, according to the vehicle body side part structure according to claim 1 of the present invention, the vehicle door side to the vehicle body side can be prevented while preventing the vehicle body and the load transmission member from interfering when the door is opened and closed. An excellent effect that the transmission efficiency of the impulsive load can be increased is obtained.

  According to the vehicle body side part structure of the second aspect, it is possible to obtain an excellent effect that an increase in the number of parts can be suppressed.

  According to the vehicle body side part structure of the third aspect, even when a side collision occurs in a part of the vehicle door that is out of the position where the load transmission member is disposed, the side collision load is efficiently transmitted to the vehicle body. The excellent effect of being able to be obtained is obtained.

  According to the vehicle body side part structure according to claim 4, it is possible to transmit the side collision load to the vehicle body earlier at the time of a side collision and to generate the reaction force from the vehicle body earlier. Effect.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, a vehicle body side structure S according to the present embodiment is a structure at the position of a center pillar (hereinafter simply referred to as “pillar 12”) as an example of a vehicle body in a vehicle 10 such as a passenger car. As shown, the vehicle door 14, the link mechanism 16, and the load transmission member 18 are included.

  In FIG. 2, the pillar 12 is a skeleton member of a vehicle body that has a closed cross-section by sandwiching a reinforcement 24 between a pillar outer panel 20 and a pillar inner panel 22, and the front end of the vehicle door 14. It extends in the vehicle up-down direction on the inner side in the vehicle width direction of the portion 14A. As shown in FIG. 1, the pillar 12 also extends above the belt line 14 </ b> B of the vehicle door 14 and is coupled to the roof side rail 28. A front pillar 29 extending along the vehicle width direction end portion of the front windshield 26 is connected to the front end of the roof side rail 28.

  In FIG. 2, the vehicle door 14 is a rear seat door that can be opened and closed with respect to the pillar 12 via a hinge (not shown). For example, the door outer panel 30 and the door inner panel 32 are It is configured by hemming. The vehicle door 14 is configured to be opened and closed around a rotation center O by a hinge.

  An impact beam 34 as an example of a door reinforcing member extends in the vehicle front-rear direction in the vehicle door 14. The impact beam 34 is a pipe member using high-strength steel or the like, and is fixed to the door inner panel 32 via a beam bracket 36. The front end 34A of the impact beam 34 extends to a position overlapping the pillar 12 in the vehicle width direction. It is extended.

  2 and 3, the link mechanism 16 is configured to be interlocked with the opening / closing of the vehicle door 14, and is connected to the pillar 12 in the door check mechanism 38 for increasing / decreasing the opening / closing operation load of the vehicle door 14. It is connected to a check arm 40 that is movably connected. A mounting bracket 42 is fixed to the vehicle rear surface 20B of the pillar outer panel 20 of the pillar 12, and the front end 40A of the check arm 40 is connected to the mounting bracket 42 by pin coupling. The check arm 40 is inserted into the vehicle door 14 through a through-hole 32B provided in the front wall portion 32A of the door inner panel 32, and the first link 51 of the link mechanism 16 at the rear end 40B. It is connected to the inner end 51A in the vehicle width direction by pin coupling.

  The check arm 40 is formed with a check pattern for setting the opening / closing operation load characteristics of the vehicle door 14. The check pattern includes a stepped portion or the like so that the check door 40 can be gradually opened and closed in addition to a form in which the check arm 40 is gently curved as a whole as shown in the figure. The form (not shown) provided is also included. A check case 44 that interferes with the check pattern of the check arm 40 when the vehicle door 14 is opened and closed is disposed on the back side of the front wall portion 32 </ b> A of the door inner panel 32. The check case 44 is a member constituting the door check mechanism 38, and the opening / closing operation load of the vehicle door 14 can be increased or decreased by interference between the check case 44 and the check arm 40.

  The rear end 52A of the second link 52 in the link mechanism 16 is connected to the outer end 51B in the vehicle width direction of the first link 51 by pin coupling. As shown in FIG. 3, the second link 52 passes through a through hole 32 </ b> C provided in the front wall portion 32 </ b> A of the door inner panel 32 and protrudes toward the vehicle front side of the front wall portion 32 </ b> A. The front end 52B of the second link 52 is connected to, for example, a substantially central portion of the upper surface 18U of the load transmission member 18 by pin coupling.

  As shown in FIGS. 2 and 3, a fixed link 53 is provided between the through holes 32 </ b> B and 32 </ b> C on the back surface of the front wall portion 32 </ b> A of the door inner panel 32. Specifically, the fixed link 53 is fixed to the back surface of the front wall portion 32A at, for example, a base portion 53A extending in the vehicle vertical direction, and extends in a cantilever manner from the substantially central portion of the base portion 53A to the vehicle rear side. The distal end 53B of the fixed link 53 is connected to the first link 51 between the vehicle width direction inner end 51A and the vehicle width direction outer end 51B by pin coupling.

  2 and 3, the load transmission member 18 includes a hinge-side end portion of the vehicle door 14, that is, a front end portion 14A, and a portion of the vehicle body that is located on the inner side in the vehicle width direction of the front end portion 14A. 12. As shown in FIG. 3, a pair of upper and lower mounting brackets 46 are fixed to the vehicle width direction inner side surface 32 </ b> D of the door inner panel 32 at the front end portion 14 </ b> A of the vehicle door 14. The pair of mounting brackets 46 are connected on the same axis line by pin connection on the upper surface 18U and the lower surface 18D. Thereby, the load transmission member 18 is provided so as to be rotatable with respect to the front end portion 14 </ b> A of the vehicle door 14.

  Further, as described above, the front end 52B of the second link 52 in the link mechanism 16 is connected to the load transmission member 18, and when the vehicle door 14 is opened, the link 12 is connected to the pillar 12 via the link mechanism 16. It is configured to be rotatable so as to avoid interference. On the outer side of the load transmission member 18 in the vehicle width direction, an end portion of the impact beam 34 that extends in the vehicle front-rear direction in the vehicle door 14, that is, a front end portion 34A is disposed.

  The load transmission member 18 has a load transmission surface 18A that is close to and faces the pillar 12 in the vehicle width direction when the door is closed. Specifically, the load transmission surface 18A of the load transmission member 18 is configured to be close to and opposed to the vehicle width direction outer side surface 20A of the pillar outer panel 20 in the vehicle width direction when the door is closed.

  Of the end portion of the load transmission surface 18A, the side that first approaches the outer side surface 20A in the vehicle width direction of the pillar outer panel 20 when the vehicle door 14 is closed is chamfered in correspondence with the turning locus of the load transmission surface 18A. ing. In the present embodiment, this chamfer is applied to the front end portion 18B of the load transmitting surface 18A, and the front end portion 18B is formed, for example, in an arc surface in a vehicle plan view. The chamfered area of the front end 18B is between the load transmitting surface 18A and the outer side surface 20A in the vehicle width direction of the pillar outer panel 20 when the door is closed in a range in which the rotation locus of the load transmitting member 18 and the pillar outer panel 20 do not interfere with each other. It is desirable to set the air gap to be as narrow as possible. On the other hand, the rear end portion 18C of the load transmission surface 18A does not interfere with the pillar outer panel 20 when the load transmission member 18 is rotated, and thus is not chamfered like the load transmission surface 18A. For this reason, the load transmission surface 18A can be secured more widely.

  In FIG. 3, the load transmission member 18 is a metal part by casting, for example, and has a thinned portion 18 </ b> E on the side surface, for example, for uniform thickness and light weight. In order to further increase the transmission efficiency of the side impact load to the pillar 12 at the time of a side collision, it is desirable to secure a large area of the load transmission surface 18A in contact with the pillar 12, but the dimension of the load transmission member 18 in the longitudinal direction of the vehicle Therefore, in the present embodiment, only the dimension in the vehicle front-rear direction at the end in the vehicle width direction where the load transmission surface 18A is provided is set large. ing. Accordingly, as shown in FIG. 2, in the load transmission member 18, the front end portion 18B of the load transmission surface 18A protrudes forward of the vehicle and the rear end portion 18C of the load transmission surface 18A protrudes rearward of the vehicle. It has become.

  Note that the link mechanism 16 may be configured as shown in FIG. In this example, the front end 52B of the second link 52 is bifurcated in the vehicle vertical direction, and is connected to the upper surface 18U and the lower surface 18D of the load transmitting member 18 on the same axis by pin connection. The rotation axis of the load transmission member 18 with respect to the second link 52 is set parallel to the rotation axis of the load transmission member 18 with respect to the mounting bracket 46. The positions of the through holes 32B and 32C in the front wall portion 32A of the door inner panel 32 and the installation positions of the check arm 40, the first link 51, and the fixed link 53 are, for example, at the height position in the vehicle vertical direction center of the load transmission member 18. Is set. By connecting the second link 52 to the upper surface 18U and the lower surface 18D of the load transmission member 18 in this way, the load transmission member 18 can be rotated more smoothly when the door is opened and closed.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. As shown in FIGS. 2 and 3, in the vehicle body side structure S, a load transmission member 18 for transmitting a side impact load at the time of a side collision between the front end portion 14 </ b> A of the vehicle door 14 and the pillar 12. However, as shown in FIG. 5, the load transmitting member 18 rotates so as to avoid interference with the pillar 12 via the link mechanism 16 when the vehicle door 14 is opened and closed. .

  Specifically, when the vehicle door 14 is opened from the closed state shown in FIG. 2, the vehicle door 14 moves in the direction of the arrow A around the rotation center O as shown in FIG. 5. Turn around. At this time, the front end 40A of the check arm 40 in the door check mechanism 38 is connected to a mounting bracket 42 provided on the vehicle rear surface 20B of the pillar outer panel 20, so that the door inner panel 32 is operated by opening the vehicle door 14. As the front wall portion 32A moves away from the vehicle rear surface 20B of the pillar outer panel 20, the front wall portion 32A is gradually pulled out from the vehicle door 14 through the through hole 32B of the front wall portion 32A. Accordingly, the rear end 40B of the check arm 40 approaches the front wall portion 32A of the door inner panel 32, so that the first link 51 connected to the rear end 40B is centered on the connection point with the fixed link 53. As shown in FIG.

  Then, since the outer end 51B in the vehicle width direction of the first link 51 is separated from the front wall portion 32A, the second link 52 connected to the outer end 51B in the vehicle width direction passes through the through hole 32C of the front wall portion 32A. It is drawn into the vehicle door 14. Since the front end 52B of the second link 52 is connected to the load transmission member 18, the load transmission member 18 is connected to the mounting bracket 46 when the second link 52 is pulled into the vehicle door 14 as described above. With the connection point as the center, it rotates in the direction of arrow C so as to avoid interference with the pillar 12.

  When the closing operation of the vehicle door 14 is performed, the link mechanism 16 operates in the direction opposite to that during the opening operation, and as shown in FIG. 2, the load transmitting surface 18A of the load transmitting member 18 is a pillar outer panel. The vehicle width direction outer side surface 20A is close to and opposed to the vehicle width direction. In the present embodiment, of the end portions of the load transmission surface 18A, the side closer to the vehicle width direction outer side surface 20A of the pillar outer panel 20 of the pillar 12 when the vehicle door 14 is closed, that is, the front end portion 18B is loaded. Since the chamfering is performed corresponding to the rotation trajectory of the transmission surface 18A, the load transmission member 18 and the pillar 12 do not interfere with each other when the vehicle door 14 is closed. The same applies to the case where the opening operation of the vehicle door 14 is performed.

  Thus, in the vehicle body side structure S, the gap between the load transmission member 18 and the pillar 12 can be further reduced while preventing the interference between the load transmission member 18 and the pillar 12 when the door is opened and closed. it can. Further, even when the load transmission member 18 is enlarged, it is possible to prevent the load transmission member 18 and the pillar 12 from interfering with each other.

  During the opening / closing operation of the vehicle door 14, the opening / closing operation load of the vehicle door 14 increases or decreases due to the interference between the check arm 40 and the check case 44 in the door check mechanism 38. In this embodiment, a check arm 40 conventionally used for the vehicle door 14 is used, and the link mechanism 16 is operated in conjunction with the movement of the check arm 40 when the door is opened and closed. Since the load transmitting member 18 is rotated, an increase in the number of components can be suppressed as compared with a case where components corresponding to the check arm 40 are separately provided.

  On the other hand, as shown in FIG. 6, when the vehicle door 14 is closed, a side collision is applied to the vehicle door 14 and the side collision load F is input to the installation position of the load transmission member 18. In this case, the load transmission surface 18A of the load transmission member 18 abuts against the outer surface 20A of the pillar outer panel 20 in the vehicle width direction, so that the side impact load F passes through the load transmission member 18 from the front end portion 14A of the vehicle door 14. Is transmitted to the pillar 12. Since the front end portion 34A of the impact beam 34 is disposed on the outer side in the vehicle width direction of the load transmission member 18, when the side collision load F is input to a portion that is out of the installation position of the load transmission member 18, The side impact load F is transmitted to the front end portion 14A of the vehicle door 14 via the impact beam 34, and is transmitted from the front end portion 14A to the pillar 12 via the load transmission member 18. For this reason, even if a side collision occurs in a portion of the vehicle door 14 that deviates from the position where the load transmission member 18 is disposed, the side collision load F can be efficiently transmitted to the pillar 12. The side impact load F is also transmitted from the front end portion 14A of the vehicle door 14 to the pillar 12 via a hinge (not shown).

  In the vehicle body side structure S, as described above, the gap between the load transmission member 18 and the pillar 12 is further narrowed while preventing the interference between the load transmission member 18 and the pillar 12 when the door is opened and closed. Therefore, the side collision load F can be transmitted to the pillar 12 earlier. In addition, this allows the reaction force from the pillar 12 to be generated earlier. Furthermore, the load transmission member 18 can be increased in size, and the load transmission surface 18A can be secured wider as in this embodiment, so that the transmission efficiency of the side impact load F can be increased.

  In FIG. 3, the load transmission surface 18 </ b> A of the load transmission member 18 is configured to be flat. However, as shown in FIG. 7, the posture of the load transmission member 18 is more enhanced when the side impact load is transmitted to the pillar 12. In order to stabilize, for example, a projection 18K is provided on the load transmission surface 18A, and a recess 20C corresponding to the projection 18K is provided on the outer surface 20A in the vehicle width direction of the pillar outer panel 20, so that the load transmission surface of the load transmission member 18 is provided. When 18A contacts the outer side surface 20A of the pillar outer panel 20 in the vehicle width direction, the protrusion 18K and the recess 20C may be engaged with each other.

  In this example, in consideration of the turning trajectory of the protrusion 18K when the load transmitting member 18 is turned, the recess 20C is formed in an elliptical shape or a long hole shape that is long in the vehicle front-rear direction. The vehicle vertical dimension of the recess 20C corresponds to the diameter of the protrusion 18K, and when the side impact load F is transmitted from the load transmitting member 18 to the pillar outer panel 20, the vehicle outer width direction outer surface 20A of the pillar outer panel 20 is measured. The relative movement of the load transmission member 18 in the vehicle vertical direction is suppressed.

  The length of the recess 20C in the vehicle longitudinal direction, the height of the protrusion 18K from the load transmission surface 18A, and the gap between the load transmission surface 18A and the vehicle width direction outer surface 20A when the door is closed are adjusted. Thus, it is possible to set so that the protrusion 18K enters the recess 20C to some extent when the door is normally closed. In this case, the relative movement of the load transmission member 18 with respect to the outer surface 20A in the vehicle width direction of the pillar outer panel 20 is suppressed at an earlier stage at the time of a side collision, and the predetermined position on the outer surface 20A in the vehicle width direction of the pillar outer panel 20 The load transmitting member 18 can be stably brought into contact.

  The structure of the link mechanism 16, that is, the lengths of the first link 51, the second link 52, and the fixed link 53, the connection position between the first link 51 and the fixed link 53, and the load transmission member 18 and the second link 52 The connecting position is not limited to the illustrated example. These are items set in consideration of the opening / closing angle of the vehicle door 14, the amount of rotation of the load transmitting member 18 when the door is opened / closed, the shape of the check arm 40, etc. Specifically, the load is set when the door is closed. It is preferable that the load transmission surface 18A of the transmission member 18 is closely opposed to the pillar 12 in the vehicle width direction so that the load transmission member 18 does not interfere with either the pillar 12 or the vehicle door 14 when the door is opened or closed. Further, the position of the rotation center O of the vehicle door 14 at the time of opening and closing the door is not limited to the position shown in the figure, and when the position of the rotation center O is different, the configuration of the link mechanism 16 and the like is appropriately changed.

  Further, the impact beam 34 has been described as an example of the door reinforcing member. However, the door reinforcing member is not limited to this, and when a side collision is caused at a portion deviated from the position where the load transmitting member 18 is disposed, Any reinforcing member may be used as long as it can transmit the side impact load to the load transmitting member 18. The vehicle body side structure S can be configured without using a door reinforcing member. Further, in the present embodiment, the vehicle body side structure S has been described at the position of the center pillar (pillar 12). However, the present invention is not limited to this and can be applied to the position of the front pillar 29. In the case where the rear door vehicle door 14 opens and closes around a hinge (not shown) on the rear side of the vehicle as in the case of double doors, the vehicle body side on the vehicle rear side of the vehicle door 14 The partial structure S can be applied.

It is a side view of the vehicle which has a vehicle body side part structure. FIG. 2 is an enlarged cross-sectional view taken along arrow 2-2 in FIG. 1 showing a vehicle body side part structure. It is a partial fracture expansion perspective view which shows a vehicle body side part structure. It is a partial fracture expansion perspective view which shows the modification of a vehicle body side part structure. It is an expanded sectional view which shows the state which the load transmission member rotated through the check arm and the link mechanism by opening operation of the vehicle door. It is an expanded sectional view which shows the state in which the side impact load input into the vehicle door at the time of a door closing is transmitted to the pillar via an impact beam and a load transmission member. It is an expansion perspective view which shows the modification which provided the projection part in the load transmission surface of the load transmission member, and provided the recessed part corresponding to this projection part in the vehicle width direction outer side surface of a pillar outer panel.

Explanation of symbols

12 pillar (body)
14 Vehicle door 14A Front end (end on the hinge side)
16 Link mechanism 18 Load transmission member 18A Load transmission surface 18B Front end (end on the side that comes closer to the vehicle body first when the vehicle door is closed)
34 Impact beam (door reinforcement member)
34A Front end (end)
38 Door check mechanism 40 Check arm S Car body side structure

Claims (4)

A vehicle door that is openable and closable with respect to the vehicle body via a hinge;
A link mechanism configured to interlock with opening and closing of the vehicle door;
The vehicle door is disposed between an end portion on the hinge side of the vehicle door and a portion of the vehicle body located on the inner side in the vehicle width direction of the end portion, and is provided to be rotatable with respect to the end portion. A load transmission member connected to the link mechanism and rotating so as to avoid interference with the vehicle body when the vehicle door is opened;
The vehicle body side part structure characterized by having.   The link mechanism is connected to a check arm that is rotatably connected to the vehicle body among door check mechanisms for increasing and decreasing an opening / closing operation load of the vehicle door. Vehicle body side structure as described.   The end portion of a door reinforcing member extending in the vehicle front-rear direction in the vehicle door is disposed outside the load transmission member in the vehicle width direction. Vehicle body side structure as described. The load transmission member has a load transmission surface that is close to and opposed to the vehicle body in the vehicle width direction when the door is closed.
The end of the load transmission surface, the side of the load transmission surface that comes closer to the vehicle body when the vehicle door is closed, is chamfered corresponding to the rotation trajectory of the load transmission surface. The vehicle body side part structure according to any one of claims 1 to 3.

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