JP5096535B2 - Car body side structure - Google Patents

Description

  The present invention relates to a vehicle body side structure, and particularly to a center pillar reinforcing structure.

  As a vehicle body side structure, a door beam member extending in the longitudinal direction of the vehicle body is attached to the inner panel of the front door, and a collision load (front collision load) at the time of a frontal collision is transmitted to the rear of the vehicle body by the door beam member. Thus, there is known one that suppresses and avoids deformation of the front door opening on the side of the vehicle body (for example, Patent Document 1).

JP 2009-269591 A

  By installing the door beam member on the front door, the front impact load is transmitted to the rear of the vehicle body, and the effect of suppressing and avoiding deformation of the front door opening is obtained. However, in the case of a 4-door sedan vehicle, the front impact load is the door beam. It is transmitted to the center pillar by the member. If the center pillar is deformed by the transmitted front impact load, the center pillar may be deformed in the indoor space behind the vehicle body. Therefore, the center pillar needs to have strength to withstand the front impact load.

  The problem to be solved by the present invention is to appropriately avoid the deformation of the center pillar due to the front collision load transmitted to the center pillar by the door beam member by the minimum reinforcement of the center pillar.

  The vehicle body side structure according to the present invention includes a center pillar (14) having a closed cross-sectional shape, a front door (20) positioned in front of the center pillar (14), and an inner panel of the front door (20). (20A) and a door beam member (48) extending in the longitudinal direction of the vehicle body, and the center pillar (14) overlaps at least a part of the door beam member (48) when viewed in the longitudinal direction of the vehicle body. A center pillar bulkhead member (46) including a plate portion (46A) extending in the longitudinal direction of the vehicle body is fixed in the center pillar (14) at the position.

  According to this configuration, the rigidity against the compressive load in the longitudinal direction of the vehicle body of the center pillar (14) at the installation portion of the center pillar bulk head member (46) is improved by the center pillar bulk head member (46). However, the transmission of the front impact load from the door beam member (48) to the center pillar (14) is performed at a portion where the rigidity is increased by the center pillar bulk head member (46). As a result, the center pillar (14) is deformed by the front collision load transmitted to the center pillar (14) by the door beam member (48), so that the center pillar (14) by the bulkhead member (46) for the center pillar is deformed. Is adequately avoided with minimal reinforcement.

  In the vehicle body side structure according to the present invention, the rear end portion of the door beam member (48) is preferably inserted into the lower end portion of the door sash member (21) provided above the inner panel (20A). It has a notch (48C) and a non-notch (48D) below the notch (48C) and extending from the notch (48C) to the rear of the vehicle body. At least a part of the portion (48D) overlaps with the center pillar bulkhead member (46) when viewed in the longitudinal direction of the vehicle body.

  According to this configuration, the front impact load is transmitted from the door beam member (48) to the center pillar (14) by the non-notched portion (48D), so that the door beam member (48 is avoided by avoiding the fragile door sash (21). ), The front impact load is reliably transmitted to the center pillar (14).

  In the vehicle body side structure according to the present invention, preferably, the center pillar (14) is joined to each other to form a closed cross-sectional shape, an outer panel (15), a center pillar inner (17), and the outer panel (15). The center pillar bulkhead member (46) is joined to the inside of the center pillar stiffener (19).

  According to this configuration, by installing the center pillar stiffener (19), the rigidity against the compressive load in the longitudinal direction of the vehicle body at the front collision load input part of the center pillar (14) of the front collision load transmission part is further improved and transmitted. The deformation of the center pillar (14) due to the front collision load is more reliably performed.

  In the vehicle body side structure according to the present invention, preferably, the center pillar (14) is joined to each other to form a closed cross-sectional shape, an outer panel (15), a center pillar inner (17), and the outer panel (15). Center pillar stiffener (19) joined to the inside of the center pillar bulkhead member (46) is joined to the inside of the center pillar stiffener (19), the outer panel (15) and the above The center pillar stiffener (19) includes a rear end portion of the door beam member (48) and a front end wall portion (15A, 19A) facing the vehicle longitudinal direction, and the outer panel (15) and the center pillar stiffener (19) Front end wall portions (15A, 19A) are located at portions facing the rear end portion of the notched portion (48D) of the door beam member (48). There bulges than other parts in the vehicle front, the non-cutout portion (48D) is proximate said front end wall portion 15A, the 19A).

  According to this configuration, by installing the center pillar stiffener (19), the rigidity against the compressive load in the longitudinal direction of the vehicle body at the front collision load input part of the center pillar (14) of the front collision load transmission part is further improved, and the door beam member ( Since the non-notched portion (48D) of 48) is close to the front end wall portion of the outer panel (15) and the center pillar stiffener (19), the door beam member (48) is connected to the center pillar (14) in this portion. The front impact load is accurately transmitted. Thereby, the deformation of the center pillar (14) due to the front collision load transmitted by the door beam member (48) is more reliably performed.

  In the vehicle body side structure according to the present invention, preferably, the center pillar stiffener (19) has a U-shaped cross-sectional shape, and the bulkhead member (46) for the center pillar includes the center pillar stiffener ( 19) is flange-joined to the inner three surfaces.

  According to this configuration, the center pillar bulkhead member (46) is firmly fixed to the center pillar stiffener (19), and the center pillar bulkhead member (46) by the center pillar bulkhead member (46) is firmly fixed. Thus, the rigidity of the center pillar (14) with respect to the compressive load in the longitudinal direction of the vehicle body is effectively improved.

  In the vehicle body side structure according to the present invention, preferably, the center pillar bulkhead member (46) includes welding flange pieces (46B, 46B) formed respectively on front and rear edges of the plate portion (46A). 46C) and another welding flange piece (46D) formed on the side edge of the plate portion (46A) and connecting the front and rear welding flange pieces (46B, 46C) to each other.

  According to this configuration, the center pillar bulkhead member (46) itself has a bending rigidity in the longitudinal direction of the vehicle body improved by the welding flange piece (46D), and the center pillar bulkhead member (46) has a center. The pillar (14) is highly reinforced.

  The vehicle body side structure according to the present invention preferably further includes a closed pillar-shaped front pillar disposed in front of the front door, a closed cross-section upper member extending forward of the vehicle from the front pillar, A front pillar reinforcing member attached to the front pillar; and an upper member stiffener attached to the upper member and extending in the longitudinal direction of the vehicle body, the upper member stiffener, the front pillar reinforcing member, the door beam member, and the The center pillar bulkhead member includes portions that overlap each other when viewed in the longitudinal direction of the vehicle body.

  According to this configuration, the upper member stiffener (30), the front pillar reinforcing member (32, 38), the door beam member (48), and the center pillar bulkhead member (46) are viewed in the longitudinal direction of the vehicle body. By including portions that overlap each other, these are used as a transmission path (load path) of the front collision load to the rear part of the vehicle body, and the front collision load transmission between the upper member (22) and the front pillar (10), The front collision load transmission between the front pillar (10) and the door beam member (48) is performed in a straight line continuous in the longitudinal direction of the vehicle body, and the front of the front collision load input to the upper member (22). The transmission to the center pillar (14) via the pillar (10) and the door beam member (48) is performed well.

  According to the vehicle body side structure according to the present invention, the rigidity of the center pillar bulkhead member against the compressive load in the longitudinal direction of the vehicle body of the center pillar of the center pillar bulkhead member is improved by the centerpillar bulkhead member. The transmission of the front impact load from the door beam member to the center pillar is performed at a portion whose rigidity is increased by the center pillar bulkhead member.

  Thus, the center pillar is appropriately prevented from being deformed by the front collision load transmitted to the center pillar by the door beam member by the minimum reinforcement of the center pillar by the bulkhead member for the center pillar.

The perspective view which shows one Example of the vehicle body side part structure of the motor vehicle by this invention. The side view of the vehicle body side part structure of the motor vehicle by a present Example. The perspective view of the front pillar part of the vehicle body side part structure of the automobile according to the present embodiment. The side view of the front pillar part of the vehicle body side part structure of the automobile according to the present embodiment. Sectional drawing along line VV of FIG. The side view of the center pillar part of the vehicle body side part structure of the automobile according to the present embodiment. Sectional drawing along line VII-VII of FIG. Sectional drawing along line VIII-VIII of FIG.

  Hereinafter, an embodiment of a vehicle body side structure according to the present invention will be described with reference to FIGS. Since the vehicle body side structure is bilaterally symmetric, the configuration on the left side as viewed from the front of the vehicle body will be described here.

  As shown in FIG. 1 and FIG. 2, the automobile has a front pillar 10, a roof rail 12, a center pillar 14, and a side sill 16 as a vehicle body side structure, thereby opening a door for the front door 20. 18 is defined.

  A base end portion of an upper member (wheel house upper member) 22 having a closed cross section extending from the front pillar 10 to the front of the vehicle body is joined to the front portion of the front pillar 10 by welding or the like. A lower member (wheel house lower member) 24 having a closed cross section extending in the longitudinal direction of the vehicle body is joined to the front end portion of the upper member 22. A front side frame 26 having a closed cross-sectional shape extending in the front-rear direction of the vehicle body is provided at the front portion of the vehicle body. A front end portion of the lower member 24 on the front side of the vehicle body and a front end portion of the front side frame 26 on the front side of the vehicle body are connected to each other by a connecting plate 28.

  A hat-shaped crossing having a plurality of bent ridgelines A, B, C, and D (see FIGS. 1 and 2) extending in the longitudinal direction of the vehicle body on the inner surface of the upper member 22 in the vicinity of the joint end with the front pillar 10. A planar upper member stiffener 30 is joined. The upper member stiffener 30 is located in front of the vehicle body from the front pillar 10 and is welded to the inner side surface of the outer panel of the upper member 22 with upper and lower welding pieces 30A and 30B, and extends substantially horizontally in the vehicle longitudinal direction. The end of the upper member stiffener 30 on the front pillar 10 side is in a position very close to the front surface of the front pillar 10, particularly the front of the vehicle body of the hinge patch 32 including a bulkhead piece 38 to be described later. The upper member stiffener 30 has a plurality of bent ridgelines A, B, C, and D extending in the longitudinal direction of the vehicle body, so that it becomes a stiffener member having high bending rigidity.

  As shown in FIGS. 4 and 5, the front pillar 10 is configured by a joined body of an outer pillar panel 11 and an inner pillar panel 13 having a hat-shaped cross-sectional shape, and has a closed cross-sectional shape. As shown in FIGS. 1 to 3, an upper door hinge 42 and a lower door hinge 44 for a front door are attached to the outer pillar panel 11. Below, the detail of the attachment structure of the upper door hinge 42 and the lower door hinge 44 is demonstrated.

  The upper door hinge 42 and the lower door hinge 44 are respectively provided with pillar side members 42A and 44A, hinge shafts 42B and 44B, and door side members 42C rotatably attached to the pillar side members 42A and 44A by the hinge shafts 42B and 44B. , 44C. In the upper door hinge 42 and the lower door hinge 44, the pillar side members 42A and 44A are attached to the outer side surface 11A of the outer pillar panel 11, and the door side members 42C and 44C are attached to the front door 20, respectively.

  Inside the outer pillar panel 11, a hinge patch 32 is attached at a position corresponding to the door side member 42 </ b> C of the upper door hinge 42 with the outer pillar panel 11 sandwiched in the plate thickness direction. The hinge patch 32 is a backing plate for the pillar side member 42A of the upper door hinge 42, has a quadrangular shape, has a quadrangular convex portion 32A formed by drawing at the center, and a protruding outer surface 32B of the convex portion 32A. And is in surface contact with the inner side surface 11 </ b> A of the outer pillar panel 11. The hinge patch 32 is spot-welded to the inner side surface 11A of the outer pillar panel 11 as indicated by a welding point x at a plurality of surface contact portions. Thereby, the hinge patch 32 extends vertically along the inner side surface 11A of the vertical outer pillar panel 11.

  On the front edge and the rear edge of the hinge patch 32 in the longitudinal direction of the vehicle body, welding flange pieces 32D and 32E are bent with a bending angle of 90 degrees. The front-side welding flange piece 32 </ b> D is in surface contact with the front end surface 11 </ b> B of the outer pillar panel 11 inside the outer pillar panel 11, and the rear-side welding flange piece 32 </ b> E is inside the outer pillar panel 11. Is in surface contact with the rear end surface 11C. The welding flange pieces 32D and 32E are spot-welded to the front end surface 11B and the rear end surface 11C of the outer pillar panel 11, as indicated by the welding points x at a plurality of positions of the respective surface contact portions.

  The outer pillar panel 11 and the convex portion 32A of the hinge patch 32 are formed with a through hole 33 penetrating them. A nut 34 is fixed to the protruding inner surface 32C of the convex portion 32A by welding at a position aligned with the through hole 33. The pillar-side member 42A of the upper door hinge 42 has a through-hole 42D formed through the base portion of the pillar-side member 42A and a bolt 36 that is threadedly engaged with the nut 34 through the through-hole 33 described above. It is fixed outside.

  On the upper edge of the hinge patch 32, a bulkhead piece 38 is bent at a bending angle of 90 degrees. The bulkhead piece 38 extends horizontally between the front end surface 11 </ b> B of the outer pillar panel 11 inside the outer pillar panel 11. Thus, the hinge patch 32 includes the bulkhead piece 38 and has an L-shaped cross section when viewed in the longitudinal direction of the vehicle body.

  At the front and rear edges of the bulkhead piece 38 in the longitudinal direction of the vehicle body, welding flange pieces 38A and 38B are bent upward with a bending angle of 90 degrees. The front welding flange piece 38 </ b> A is in surface contact with the front end surface 11 </ b> B of the outer pillar panel 11 inside the outer pillar panel 11, and the rear welding flange piece 38 </ b> B is inside the outer pillar panel 11. Is in surface contact with the rear end surface 11C. The welding flange pieces 38A and 38B are spot-welded to the front end face 11B and the rear end face 11C of the outer pillar panel 11, as indicated by the welding points x at a plurality of positions of the respective surface contact portions.

  The bulkhead piece 38 is bent upward at a bending angle of 90 degrees at the front edge extending between the front and rear welding flange pieces 38A and 38B to the welding flange pieces 38A and 38B. A connecting flange piece 38C to be connected is formed. The bulkhead piece 38 has a drain opening 38D.

  As described above, when the bulkhead piece 38 is bent in the hinge patch 32, the hinge patch 32 and the bulkhead piece 38 become a single part as a front pillar reinforcing member. Therefore, the bent ridge line E (see FIGS. 3 and 4) exists in the bent portion of the upper door hinge 42, which is naturally a higher-rigidity component than the case where these are individual components. The reinforcement of the mounting portion and the improvement of the rigidity (transverse section rigidity) against the compressive load in the front-rear direction of the vehicle body of the front pillar 10 are enhanced with each other.

  Accordingly, the deformation of the front pillar 10 due to the frontal collision is favorably suppressed, the deformation of the front pillar 10 due to the frontal collision is restrained, and the front collision load at the front pillar 10 is favorably transmitted to the rear of the vehicle body. .

  This is because the hinge patch 32 includes a vertically extending portion, the bulkhead piece 38 includes a horizontally extending portion, and the hinge patch 32 and the bulkhead piece 38 have an L-shaped cross-sectional shape. The folding ridgeline E between the hinge patch 32 and the bulkhead piece 38 becomes noticeable by having a bending angle of 90 degrees.

  Further, the hinge patch 32 is joined to the front end surface 11B and the rear end surface 11C of the outer pillar panel 11 which are the front and inner end surfaces of the front pillar 10 by means of the welding flange pieces 32D and 32E. The strength against the twisting moment of the door hinge attachment point increases, and the hinge patch 32 itself also acts as a bulkhead installed in the front pillar 10. As a result, the hinge patch 32 also contributes to improving the rigidity of the front pillar 10 with respect to the compressive load in the longitudinal direction of the vehicle body. To be done.

  Further, the bulkhead piece 38 is joined to the front end face 11B and the rear end face 11C of the outer pillar panel 11 which is the inner front end face and the inner rear end face of the front pillar 10 with the flange pieces 38A and 38B for welding. The rigidity of the pillar 10 with respect to the compressive load in the longitudinal direction of the vehicle body is further improved. This also suppresses the deformation of the front pillar due to the frontal collision and transmits the forward collision load to the rear of the vehicle body at a high level.

  Further, since the connecting flange piece 38C is bent on the bulkhead piece 38, the bending rigidity of the bulkhead piece 38 itself in the longitudinal direction of the vehicle body is improved, and this also deforms the front pillar due to the frontal collision. Suppression and transmission of the front impact load to the rear of the vehicle body are performed at a high level.

  Further, since the protrusion 32A is press-formed on the hinge patch 32, the surface rigidity of the hinge patch 32 is improved and the strength against the torsional moment of the front door hinge attachment point compared to a case where this is a simple flat plate shape. Will further increase.

  Although not shown, the front door 20 is configured by a joined body of an inner door panel 20A and an outer door panel (not shown). As shown in FIGS. 1 and 2, a door beam member 48 extending in the longitudinal direction of the vehicle body is attached to the inner door panel 20A along the upper edge of the inner door panel 20A.

  The door beam member 48 has a rectangular corrugated cross section having a plurality of bent ridgelines F, G, H, I, and J (see FIGS. 1 and 3) extending in the longitudinal direction of the vehicle body. 48B is welded to the upper edge of the inner door panel 20A and extends substantially horizontally across the entire area of the inner door panel 20A in the longitudinal direction of the vehicle body. The upper piece 48A of the door beam member 48 defines the lower edge of the window opening of the front door 20.

  The end of the door beam member 48 on the front side of the vehicle body is in a position very close to the rear surface of the front pillar 10, specifically, the rear side of the hinge patch 32 including the bulkhead piece 38 when the front door 20 is closed. The door beam member 48 has a plurality of bent ridgelines F, G, H, I, and J extending in the longitudinal direction of the vehicle body.

  An end (rear end) of the door beam member 48 on the rear side of the vehicle body includes a notch 48C into which the lower end of the door sash member 21 (see FIG. 2) provided above the inner panel 20A is inserted, and a notch It has a non-notched portion 48D that is below 48C and extends rearward from the notched portion 48C. The non-notched portion 48D includes a bent piece 48E that is bent in the vehicle width direction. The bent ridge line J on the lower side of the door beam member 48 extends to the non-notched portion 48D.

  Note that door beam members 50 and 52 for side collision countermeasures are attached to the inner surface of the outer door panel of the front door 20 (see FIGS. 1 and 2).

  As shown in FIGS. 6 to 8, the center pillar 14 is composed of a joined body of an outer panel 15 having a hat-shaped cross section and a center pillar inner (inner pillar panel) 17 to form a closed section. ing. A center pillar stiffener 19 made of a high-tensile steel plate having a U-shaped cross section is joined to the inner side of the outer panel 15. In this embodiment, the center pillar stiffener 19 has a hat-shaped cross-sectional shape including a joining piece, and is sandwiched and fixed to the joining portion between the outer panel 15 and the center pillar inner 17.

A center pillar bulkhead member 46 is joined to the inside of the center pillar stiffener 19. Head member 46 to the center pillar for the bulk has a plate portion 46A extending in the longitudinal direction of the vehicle body, the plate portion 46 A of each bent formed weld flange piece 46B in the longitudinal edge, and 46C, the plate portion 46A Folded to the side edge portion of the plate portion 46A to connect another welding flange piece 46D bent at the side edge portion, the welding flange piece 46D and the front and rear welding flange pieces 46B and 46C, respectively. This is a press-molded product that integrally has a bent connection flange piece 46E.

  The center pillar bulkhead member 46 is disposed at a position where the plate portion 46A overlaps at least a part of the door beam member 48, particularly, the notch portion 48C when viewed in the longitudinal direction of the vehicle body, and the welding flange pieces 46B, 46C. Are flange-joined (welded) to the front end face 19B and the rear-end face 19C inside the center pillar stiffener 19, and the flange piece 46D is flange joined (welded) to the side face 19D inside the center pillar stiffener 19.

  The bulkhead member 46 for the center pillar has closed cross-sections at the corners of the front end surface 19B and the side surface 19D of the center pillar stiffener 19 and at the corners of the rear end surface 19C and the side surface 19D of the center pillar stiffener 19, respectively. 45 is formed.

  The center pillar bulkhead member 46 is set at the required position described above by aligning the center pillar stabilizer 19 and the alignment hole (not shown) penetrating the outer panel 15 in the flange piece 46D. An alignment hole 46G for this purpose is formed. Further, a drain hole 46F is formed through the plate portion 46A.

  Since the plate portion 46A of the center pillar bulkhead member 46 is bridged between the center pillar stiffener 19, the front end surface 19B and the rear end surface 19C, the portion where the center pillar bulkhead member 46 is installed. The rigidity of the center pillar 14 against the compressive load in the longitudinal direction of the vehicle body is improved.

  The plate portion 46A of the center pillar bulkhead member 46 is disposed at a position that overlaps at least a part of the door beam member 48, particularly the cutout portion 48C when viewed in the longitudinal direction of the vehicle body. Further, the transmission of the front impact load to the center pillar 14 is performed at a portion whose rigidity is increased by the center pillar bulkhead member 46. Accordingly, the center pillar 14 is appropriately prevented from being deformed by the front collision load transmitted to the center pillar 14 by the door beam member 48 by the minimum reinforcement of the center pillar 14 by the bulkhead member 46 for the center pillar. The

  In particular, since the front impact load is transmitted from the door beam member 48 to the center pillar 14 by the non-notched portion 48D, the front impact load from the door beam member 48 to the center pillar 14 is surely avoided by avoiding the fragile door sash 21. Will be communicated. Further, since the non-notched portion 48D of the door beam member 48 extends in a direction close to the outer panel 15 and the front end wall portions 15A and 19A of the center pillar stiffener 19, the front portion of the door beam member 48 from the door beam member 48 to the center pillar 14 is extended. Impulsive load is transmitted accurately. Also by this, deformation of the center pillar 14 due to the front collision load transmitted by the door beam member 48 is more reliably performed.

  Further, since the center pillar bulkhead member 46 is flange-bonded to the inner three surfaces of the center pillar stiffener 19, the center pillar bulkhead member 46 is firmly fixed to the center pillar stiffener 19. Thus, the rigidity of the center pillar 14 against the compressive load in the longitudinal direction of the vehicle body through the center pillar stiffener 19 by the bulkhead member 46 for the center pillar is effectively performed.

  Also, the welding flange piece 46D and the connecting flange piece 46E connected to the front and rear welding flange pieces 46C and 46D improve the bending rigidity of the center pillar bulk head member 46 itself in the longitudinal direction of the vehicle body. The center pillar 14 is reinforced by the head member 46 at a high level.

  Moreover, the center pillar bulkhead member 46 is closed at the corner between the front end surface 19B and the side surface 19D of the center pillar stiffener 19 and at the corner between the rear end surface 19C and the side surface 19D of the center pillar stiffener 19, respectively. Since the cross section 45 is formed, the bending rigidity of the center pillar 14 in the longitudinal direction of the vehicle body is improved.

  In addition, since the center pillar stiffener 19 is installed, the rigidity against the compressive load in the longitudinal direction of the vehicle body at the front impact load input portion of the center pillar 14 at the front impact load transmission portion is further improved, and the transmitted front impact load The center pillar 14 can be prevented from being deformed more reliably.

  In the vehicle body side structure according to this embodiment, at least one of the hinge patch 32 and the bulk bed piece 38, the upper member stiffener 30, the door beam member 48, and the center pillar bulk head member 46 are arranged in the vehicle longitudinal direction. As seen, it includes a portion that overlaps each other, and further, the portion where the four members overlap is substantially in a straight line.

  Due to this overlap portion, transmission of the front collision load between the upper member 22 and the front pillar 10 (load path), transmission of the front collision load between the front pillar 10 and the door beam member 48 (load path), and the door beam. The member 48 and the center pillar bulkhead member 46 are configured to have a continuous linear load transmission path. As a result, the front pillar load input to the upper member 22 and the center pillar 14 through the front pillar 10 and the door beam member 48 are transmitted to the center pillar bulk head member 46 placement portion in a favorable manner. Become.

  In particular, since the overlapping portions are present on a straight line substantially horizontally, the front collision load input to the upper member 22 is transmitted to the rear portion of the vehicle body via the front pillar 10 and the door beam member 48. Thus, it is performed efficiently and satisfactorily without causing a bending moment.

  Further, since the bent ridge line J on the lower side of the door beam member 48 is extended to the non-notched portion 48D, the front impact load is transmitted from the door beam member 48 to the center pillar bulkhead member 46 (load path). Is performed efficiently.

DESCRIPTION OF SYMBOLS 10 Front pillar 11 Outer pillar panel 20 Front door 22 Upper member 30 Stiffener for upper member 32 Hinge patch 32A Convex part 32D, 32E Welding flange piece 38 Bulkhead piece 38A, 38B Welding flange piece 38C Connection flange piece 42 Upper door hinge 46 Center pillar Bulkhead member 48 Door beam member

Claims (7)

A center pillar with a closed cross-sectional shape;
A front door located in front of the center pillar body;
A front pillar having a closed cross-sectional shape disposed in front of the vehicle body of the front door;
A door beam member attached to the inner panel of the front door and extending in the longitudinal direction of the vehicle body,
The door beam member has a rectangular corrugated shape having a plurality of bent ridge lines extending in the longitudinal direction of the vehicle body.
It has a cross-sectional shape, and the front end of the door beam member is in a position close to the rear surface of the front pillar when the front door is closed, and the rear end of the door beam member is The door beam has a notch portion into which a lower end portion of a door sash member provided above is inserted, and a non-notch portion below the notch portion and extending from the notch portion toward the rear of the vehicle body. One of the lower sides of the bent ridge line of the member extends to the non-notched portion,
A bulkhead member for a center pillar including a plate portion extending in the longitudinal direction of the vehicle body in the center pillar at a position where at least a part of the notch portion of the door beam member overlaps when viewed in the longitudinal direction of the vehicle body. A vehicle body side structure that is fixed and at least a part of the cutout portion overlaps with the plate portion of the bulkhead member for the center pillar when viewed in the vehicle longitudinal direction . The center pillar includes an outer panel and a center pillar inner joined to each other to form a closed cross-sectional shape, and a center pillar stiffener joined to the inside of the outer panel, and the center pillar bulk for the center pillar inside the center pillar stiffener. The vehicle body side structure according to claim 1 , wherein a head member is joined. The center pillar includes an outer panel and a center pillar inner joined to each other to form a closed cross-sectional shape, and a center pillar stiffener joined to the inside of the outer panel, and the center pillar bulk for the center pillar inside the center pillar stiffener. The head member is joined,
The outer panel and the center pillar stiffener include a rear end portion of the door beam member and a front end wall portion facing the vehicle body front-rear direction, and the front end wall portion of the outer panel and the center pillar stiffener is the non-notched portion of the door beam member. 2. The vehicle body side structure according to claim 1 , wherein a portion facing the rear end portion of the portion swells forward of the vehicle body from the other portion, and the non-notched portion is close to the front end wall portion. The center pillar stiffener has a U-shaped cross-section,
The vehicle body side part structure according to claim 2 or 3 , wherein the center pillar bulkhead member is flange-bonded to three inner surfaces of the center pillar stiffener. The bulkhead member for the center pillar has a closed cross-sectional portion formed at a corner portion between a front end surface and a side surface of the center pillar stiffener and a corner portion between a rear end surface and a side surface of the center pillar stiffener. Item 5. The vehicle body side structure according to Item 4. The center pillar bulkhead member includes front and rear welding flange pieces that are bent at the front and rear edge portions of the plate portion, and a front and rear welding portion that is bent at the side edge portion of the plate portion. The vehicle body side part structure according to any one of claims 1 to 5, further comprising another welding flange piece and a connection flange piece for connecting the flange pieces for welding to each other. And the upper member of closed section extending in front of the vehicle body than the front SL front pillar,
A front pillar reinforcing member attached to the front pillar;
An upper member stiffener attached to the upper member and extending in the longitudinal direction of the vehicle body;
7. The upper member stiffener, the front pillar reinforcing member, the door beam member, and the center pillar bulk head member include portions that overlap each other when viewed in the longitudinal direction of the vehicle body. The vehicle body side structure according to one item.

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