JP2016084031A - Vehicle side section structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle side section structure capable of effectively suppressing deformation to the vehicle width direction inside of a side door.SOLUTION: A vehicle side section structure includes: a rocker 18 which is extended in a vehicle longitudinal direction in a vehicle side section 12; an impact beam 48 which is disposed in a side door 24 at the vehicle width direction outside of the rocker 18 and is extended obliquely downward from a front end section or a rear end section of the side door 24 toward a lower end section in a vehicle longitudinal direction center portion; and a reinforcing member 52 which includes a first surface 54 which is disposed at the vehicle width direction inside at the lower end section 48B of the impact beam 48 and is joined to a door inner panel 44 and is extended in a vehicle width direction along an upper wall section 36B of the rocker 18, and a second surface 56 which is extended in a vehicle vertical direction along an outside vertical wall section 36C extended to a vehicle lower side from an end section at the vehicle width direction outside of the upper wall section 36B.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle side part structure.

  As a vehicle side part structure in which an impact beam is provided inside a side door, Patent Document 1 discloses that a rear end part of a front side door and a lower end part in a center part in the vehicle width direction are connected by an inverted L-shaped impact beam. Such a structure is disclosed.

JP 2008-100572 A

  In the invention of the above-mentioned patent document 1, the side door is prevented from being deformed to the inside of the vehicle at the time of a side collision (at the time of a side collision) by reinforcing the center portion of the side door in the vehicle width direction with an inverted L-shaped impact beam. doing. However, the lower end portion of the side door may come into contact with the rocker, and there is room for improvement from the viewpoint of suppressing the amount of deformation of the side door toward the vehicle interior.

  In consideration of the above facts, an object of the present invention is to obtain a vehicle side part structure that can effectively suppress deformation of a side door inward in the vehicle width direction.

  The vehicle side part structure according to the first aspect of the present invention includes a rocker that extends in the vehicle front-rear direction at the vehicle side part, and a side door that is disposed outside the rocker in the vehicle width direction. An impact beam extending obliquely downward from the front end portion or the rear end portion toward the lower end portion of the vehicle longitudinal direction central portion, and the vehicle of the side door disposed at the vehicle width direction inner side at the lower end portion of the impact beam. A first surface joined to a door inner panel constituting the inner side and extending in the vehicle width direction along the upper wall portion constituting the upper surface of the rocker, and an end portion of the upper wall portion on the outer side in the vehicle width direction And a reinforcing member having a second surface extending in the vehicle vertical direction along the outer vertical wall portion extending downward.

  In the vehicle side portion structure according to the first aspect of the present invention, a rocker extends in the vehicle front-rear direction on the vehicle side portion, and an impact beam is disposed in the side door on the outer side in the vehicle width direction than the rocker. Has been. The impact beam extends obliquely downward from the front end portion or the rear end portion of the side door to the lower end portion of the vehicle longitudinal direction central portion. A reinforcing member is joined to the door inner panel on the inner side in the vehicle width direction at the lower end of the impact beam. Here, the reinforcing member extends along the first surface extending in the vehicle width direction along the upper wall portion of the rocker, and the outer vertical wall portion extending downward from the vehicle width direction outer end portion of the upper wall portion. And a second surface extending in the vehicle vertical direction. Thereby, at the time of a side collision, the collision load inside the vehicle width direction is transmitted from the impact beam to the reinforcing member. Further, when the side door is pushed inward in the vehicle width direction, the first surface of the reinforcing member comes into contact with the upper wall portion of the rocker, and the second surface of the reinforcing member comes into contact with the outer vertical wall portion of the rocker. Thus, the collision load can be effectively transmitted by bringing the reinforcing member into contact with at least two surfaces of the rocker.

  Moreover, it can suppress that the door inner panel is reinforced and the lower end part of a side door rises by joining a reinforcement member to the part which contacts the rocker in a door inner panel.

  The vehicle side part structure according to a second aspect of the present invention is the vehicle side part structure according to the first aspect, wherein the reinforcing member and the door inner panel form a closed cross section.

  In the vehicle side part structure according to the second aspect of the present invention, it is possible to improve the strength and rigidity of the lower end portion of the side portion of the side door in the vehicle width direction.

  The vehicle side part structure according to the third aspect of the present invention is the vehicle side part structure according to the first or second aspect, wherein the rocker rotates inward of the vehicle in the vehicle width direction than the rocker when the vehicle collides. A stopper member having a contact surface that receives the stopper is disposed.

  In the vehicle side part structure according to the third aspect of the present invention, when the reinforcing member and the rocker come into contact with each other due to a collision such as a side collision, the rocker rotating toward the inside of the vehicle is received by the contact surface of the stopper member to rotate the rocker. Can be suppressed.

  The vehicle side part structure according to a fourth aspect of the present invention is the vehicle side part structure according to any one of the first to third aspects, wherein the rocker extends on the floor panel in the vehicle width direction. One end of the floor cross member is connected, and the reinforcing member is provided on the opposite side of the floor cross member across the rocker.

  In the vehicle side part structure according to the fourth aspect of the present invention, the collision load transmitted from the impact beam to the rocker through the reinforcing member at the time of a side collision can be efficiently distributed to the floor cross member.

  The vehicle side part structure according to the present invention described in claim 5 is the vehicle side part structure according to claim 4, wherein a bulk member is provided inside the rocker positioned between the reinforcing member and the floor cross member. Is provided.

  In the vehicle side part structure according to the fifth aspect of the present invention, the collision load input from the reinforcing member to the rocker can be transmitted to the floor cross member via the rocker and the bulk member.

  As described above, the invention according to claim 1 has an excellent effect that the deformation of the side door in the vehicle width direction can be effectively suppressed.

  According to the invention which concerns on Claim 2, it has the outstanding effect that it can suppress effectively that the lower end part of a side door rises.

  According to the invention which concerns on Claim 3, it has the outstanding effect that rotation to the vehicle inner side of a rocker can be suppressed.

  According to the invention which concerns on Claim 4, it has the outstanding effect that the collision load at the time of a side collision can be disperse | distributed effectively.

  According to the invention which concerns on Claim 5, it has the outstanding effect that the transmission efficiency of the collision load from a rocker to a floor cross member can be improved.

It is a side view showing the front part of the vehicle to which the vehicle side part structure concerning a 1st embodiment was applied. It is an expanded sectional view which expands and shows the cut surface cut | disconnected by the 2-2 line | wire of FIG. It is a perspective view which shows the reinforcement plate which concerns on 1st Embodiment. It is sectional drawing corresponding to FIG. 2 which shows the modification of the vehicle side part structure which concerns on 1st Embodiment. It is sectional drawing corresponding to FIG. 2 which shows the state before the side collision of the vehicle side part structure which concerns on 2nd Embodiment. It is sectional drawing corresponding to FIG. 2 which shows the state at the time of the side collision of the vehicle side part structure which concerns on 2nd Embodiment. It is an expanded sectional view which expands and shows the cut surface cut | disconnected by the 4-4 line | wire of FIG. 1, and is a figure which shows the state before and after a side collision.

<First Embodiment>
Hereinafter, based on FIGS. 1-3, the vehicle side part structure which concerns on 1st Embodiment of this invention is demonstrated. Note that an arrow FR appropriately shown in the drawings indicates the front of the vehicle, an arrow UP indicates the upper side of the vehicle, and an arrow OUT indicates the outer side in the vehicle width direction. Moreover, the vehicle side part structure of this embodiment is comprised left-right symmetrically in the vehicle width direction. For this reason, the left side portion of the vehicle will be described below, and the description of the right side portion of the vehicle will be omitted.

(Vehicle structure with vehicle side structure)
As shown in FIG. 1, a front pillar 14 extending in the vehicle vertical direction is disposed at the vehicle side portion 12 of the vehicle 10 to which the vehicle side portion structure according to the present embodiment is applied. ing. A center pillar 16 extending in the vehicle up-down direction is disposed behind the front pillar 14 and the lower end portion of the front pillar 14 and the lower end portion of the center pillar 16 extend in the vehicle front-rear direction. It is connected by the existing rocker 18. The front pillar 14, the center pillar 16, the rocker 18, and the roof side rail 20 form a front door opening 22 for occupant getting on and off.

  Here, a front side door 24 as a side door is disposed on the vehicle rear side of the front pillar 14, and the front side door 24 rotates to the front pillar 14 via a pair of upper and lower door hinges 26. Supported as possible. The front door opening 22 is closed by the front side door 24.

  A rear side door 28 is disposed between the center pillar 16 and a rear pillar (not shown) disposed on the vehicle rear side of the center pillar 16. The rear side door 28 is rotatably supported by the center pillar 16 via a pair of upper and lower door hinges 26. The rear side door 28 closes the rear door opening 32 formed by the center pillar 16, the rear pillar, the rocker 18, and the roof side rail 20.

  As shown in FIG. 2, the rocker 18 has a closed cross-sectional structure in which a cross-sectional shape cut up and down along the vehicle width direction is a substantially rectangular shape. The rocker 18 includes a rocker inner panel 34 on the inner side in the vehicle width direction and a rocker outer panel 36 on the outer side in the vehicle width direction.

  The rocker inner panel 34 is formed in a substantially hat shape with a cross-sectional shape cut vertically along the vehicle width direction and is open to the outside in the vehicle width direction. The upper flange portion 34A is extended. Further, the inner side upper wall portion 34B extends obliquely downward from the lower end of the inner side upper flange portion 34A toward the inner side in the vehicle width direction. Further, the inner side vertical wall portion 34C extends downward from the inner end of the inner side upper wall portion 34B in the vehicle width direction, and obliquely outwards from the lower end of the inner side vertical wall portion 34C toward the outer side in the vehicle width direction. An inner side lower wall portion 34D extends downward. Further, an inner side lower flange portion 34E extends downward from the lower end of the inner side lower wall portion 34D.

  On the other hand, the rocker outer panel 36 is formed in a substantially hat shape in which a cross-sectional shape cut in the vertical direction along the vehicle width direction is opened to the inside in the vehicle width direction. Further, an outer side upper flange portion 36A extends from the upper end portion of the rocker outer panel 36 to the upper side of the vehicle, and the outer side upper flange portion 36A is overlapped and joined to the inner side upper flange portion 34A. Further, an outer side upper wall portion 36B extends obliquely downward from the lower end of the outer side upper flange portion 36A toward the outside in the vehicle width direction. The outer side upper wall portion 36B and the inner side upper wall portion 34B lock the rocker. The upper surface of 18 is comprised. Further, the outer side vertical wall portion 36C extends from the end of the outer side upper wall portion 36B on the outer side in the vehicle width direction to the vehicle lower side, and obliquely toward the inner side in the vehicle width direction from the lower end of the outer side vertical wall portion 36C. The outer side lower wall portion 36D extends downward. Further, an outer side lower flange portion 36E extends downward from the lower end of the outer side lower wall portion 36D, and the outer side lower flange portion 36E is overlapped with and joined to the inner side lower flange portion 34E. Here, the outer side upper wall portion 36B corresponds to the “upper wall portion” of the present invention, and the outer side vertical wall portion 36C corresponds to the “outer vertical wall portion” of the present invention. Further, a structure in which a side outer panel (cymnet outer) is joined to the upper part of the rocker 18 may be used.

  Here, the floor panel 38 which comprises the floor part of a compartment is joined to the inner side lower wall part 34D in the rocker inner panel 34 of the rocker 18. As shown in FIG. The floor panel 38 is disposed between the left and right rockers, and an end 38A on the outer side in the vehicle width direction of the floor panel 38 is overlapped and joined to the outer side lower wall portion 36D.

  A floor cross member 40 extending in the vehicle width direction is disposed on the floor panel 38. The floor cross member 40 is formed in a substantially hat shape in which a cut surface cut in the vertical direction along the vehicle longitudinal direction is opened to the vehicle lower side, and the floor cross member 40 and the floor panel 38 constitute a closed cross section. doing. Further, one end 40 </ b> A on the outer side in the vehicle width direction of the floor cross member 40 is joined (connected) to the inner side upper wall 34 </ b> B in the rocker inner panel 35 of the rocker 18. Further, the other end portion of the floor cross member 40 on the inner side in the vehicle width direction is joined to a tunnel portion (not shown) provided at the center portion of the floor panel 38 in the vehicle width direction.

  A front side door 24 is disposed outside the rocker 18 in the vehicle width direction. The front side door 24 includes a door outer panel 42 on the outer side in the vehicle width direction and a door inner panel 44 on the inner side in the vehicle width direction. The door outer panel 42 and the door inner panel 44 are integrated by a hemming portion 46. To form a closed cross section.

  Here, an impact beam 48 is attached to the door outer panel 42 via a mounting bracket 50. The impact beam 48 is a substantially cylindrical member, and as shown in FIG. 1, the impact beam 48 is linearly inclined diagonally downward from the front end portion of the front side door 24 toward the lower end portion of the front side door 24 in the vehicle longitudinal direction center portion. Has been extended to. In FIG. 1, for convenience of explanation, the mounting bracket 50 is not shown, but the impact beam 48 is attached to the door inner panel 44 by a plurality of mounting brackets 50. Moreover, the vehicle front-rear direction center part of the front side door 24 here is not limited to a position that equally divides the length of the front side door 24 in the vehicle front-rear direction, and the front end part and the rear end part of the front side door 24 It is a concept that includes a wide range excluding.

  The upper end portion (front end portion) 48A of the impact beam 48 extends to a position facing the front pillar 14 in the vehicle front-rear direction, and the vehicle vertical direction center between the lower end portion of the front side door 24 and the door belt line. Located in the department. On the other hand, a lower end portion (rear end portion) 48B of the impact beam 48 extends to a position facing the rocker 18 in the vehicle vertical direction.

  As shown in FIG. 2, a reinforcing plate 52 as a reinforcing member is disposed on the inner side in the vehicle width direction at the lower end 48 </ b> B of the impact beam 48, and this reinforcing plate 52 is joined to the door inner panel 44. Yes. Here, the lower end portion of the door inner panel 44 is recessed outward in the vehicle width direction so as to avoid the rocker 18, and the reinforcing plate 52 is joined to the recessed portion so as to face the impact beam 48 in the vehicle width direction. ing.

  As illustrated in FIG. 3, the reinforcing plate 52 is a metal plate having a substantially V-shaped cross section including a first surface 54 and a second surface 56. The first surface 54 is gently inclined downward in the vehicle as it goes from the inner side in the vehicle width direction to the outer side in the vehicle width direction with the reinforcing plate 52 joined to the door inner panel 44. A convex bead 58 bulging upward in the vehicle width direction is formed at the center of the first surface 54, and the cross-sectional shape of the first surface 54 is substantially hat-shaped. Then, both sides of the convex bead 58 on the first surface 54 are joined to the door inner panel 44, and the convex bead 58 and the door inner panel 44 constitute a closed cross section.

  The second surface 56 extends downward from the end of the first surface 54 in the vehicle width direction when the reinforcing plate 52 is joined to the door inner panel 44. A convex bead 60 bulging outward in the vehicle width direction along the vehicle vertical direction is formed at the center of the second surface 56, and the cross-sectional shape of the second surface 56 is substantially hat-shaped. Yes. Then, both sides of the convex bead 60 on the second surface 56 are joined to the door inner panel 44, and the convex bead 60 and the door inner panel 44 constitute a closed cross section. Moreover, in this embodiment, the convex bead 58 by the side of the 1st surface 54 and the convex bead 60 by the side of the 2nd surface 56 are formed continuously, and the convex bead 58 and the convex bead 60 have appropriate effective width. Has been taken into account. In the present embodiment, the widths of the convex beads 58 and the convex beads 60 are substantially the same as the outer diameter of the impact beam 48, but are not limited thereto.

  Here, as shown in FIG. 2, the first surface 54 of the reinforcing plate 52 extends along the outer side upper wall portion 36 </ b> B in the rocker outer panel 36 of the rocker 18 while being joined to the door inner panel 44. Has been. That is, it is disposed substantially parallel to the outer side upper wall portion 36B. The second surface 56 of the reinforcing plate 52 extends along the outer side vertical wall portion 36 </ b> C of the rocker outer panel 36 while being joined to the door inner panel 44. That is, it is arranged substantially parallel to the outer side vertical wall portion 36C.

  The reinforcing plate 52 is provided on the opposite side of the floor cross member 40 with the rocker 18 in between. That is, the reinforcing plate 52 and the floor cross member 40 are arranged so as to overlap each other when viewed from the side of the vehicle.

  Further, a bulk member 62 is provided inside the rocker 18 between the reinforcing plate 52 and the floor cross member 40. The bulk member 62 is a plate-like member formed in substantially the same shape as the cross-sectional shape of the rocker 18, and a flange (not shown) extending in the vehicle front-rear direction is provided on the outer peripheral edge of the bulk member 62. The flange is joined to the inner wall of the rocker 18.

(Action and effect)
Next, the operation and effect of the vehicle side part structure of the present embodiment will be described.

  In the vehicle side part structure of this embodiment, when a barrier collides with the front side door 24 at the time of a side collision, the front side door 24 is pushed inward in the vehicle width direction by this barrier. At this time, as shown in FIG. 1, the front end portion of the front side door 24 is supported by the front pillar 14, and the rear end portion of the front side door 24 is supported by the center pillar 16. For this reason, the vehicle front-rear direction center portion is pushed into the barrier more easily than the front end portion and rear end portion of the front side door 24 and is deformed inward in the vehicle width direction.

  Here, an impact beam 48 is disposed inside the front side door 24 of the present embodiment, and the barrier collides with a center portion of the impact beam 48 in the vehicle vertical direction. For this reason, the collision load input from the barrier to the impact beam 48 is distributed to the vehicle front side of the front side door 24 and the vehicle front-rear direction center through the impact beam 48.

  As shown in FIG. 2, a reinforcing plate 52 is disposed on the inner side in the vehicle width direction at the lower end 48 </ b> B of the impact beam 48. For this reason, when the front side door 24 is pushed inward in the vehicle width direction by the barrier at the time of a side collision, the interval between the door outer panel 42 and the door inner panel 44 is narrowed, and the lower end portion 48B of the impact beam 48 becomes the reinforcing plate 52. To touch. The collision load can be smoothly transmitted from the impact beam 48 to the reinforcing plate 52.

  Furthermore, when the front side door 24 moves inward in the vehicle width direction and contacts the rocker 18, the reinforcing plate 52 contacts the rocker outer panel 36 of the rocker 18 with the door inner panel 44 interposed therebetween. Here, the first surface 54 of the reinforcing plate 52 extends along the outer side upper wall portion 36B of the rocker outer panel 36, and the second surface 56 extends along the outer side vertical wall portion 36C of the rocker outer panel 36. Has been extended. For this reason, the 1st surface 54 and the 2nd surface 56 of the reinforcement plate 52 contact the outer side upper wall part 36B and the outer side vertical wall part 36C on both sides of the door inner panel 44, respectively. In this way, by bringing the reinforcing plate 52 into contact with at least two surfaces of the rocker 18, the collision load input from the impact beam 48 to the reinforcing plate 52 can be effectively transmitted to the rocker 18.

  Moreover, since the part which contacts the rocker 18 in the door inner panel 44 is reinforced with the reinforcement plate 52, even if it is a case where the door inner panel 44 contacts the rocker 18 at the time of a side collision, it becomes difficult to deform | transform. . As described above, it is possible to effectively transmit the collision load input to the lower end portion of the vehicle front-rear direction center portion of the front side door 24 to the rocker 18 and to make the door inner panel 44 difficult to be deformed. It is possible to suppress the lower end portion of the panel 44 from rolling up. As a result, the deformation of the front side door 24 toward the inside in the vehicle width direction can be effectively suppressed.

  Further, in the present embodiment, convex beads 58 and convex beads 60 are formed on the first surface 54 and the second surface 56 of the reinforcing plate 52, respectively. A closed cross-section is configured. Thereby, compared with the case where the reinforcing plate 52 is formed in a flat plate shape, the strength and rigidity can be improved, and the door inner panel 44 can be effectively prevented from rolling up at the time of a side collision.

  Furthermore, in this embodiment, since the reinforcing plate 52 is disposed on the opposite side of the floor cross member 40 with the rocker 18 in between, the collision load transmitted from the reinforcing plate 52 to the rocker 18 can be efficiently applied to the floor cross. It can be transmitted to the member 40. Thereby, the collision load at the time of a side collision can be disperse | distributed to the opposite side of the vehicle width direction.

  In this embodiment, since the bulk member 62 is provided inside the rocker 18, the collision load input from the reinforcing plate 52 to the rocker 18 is transmitted to the floor cross member 40 via the rocker 18 and the bulk member 62. Can be made. That is, the transmission efficiency of the collision load from the rocker 18 to the floor cross member 40 can be improved. Further, the bulk member 62 can suppress the collapse of the cross section of the rocker 18.

  In the present embodiment, the impact beam 48 and the reinforcing plate 52 are disposed on the front side door 24, but the present invention is not limited to this. For example, the impact beam 48 and the reinforcing plate 52 may be similarly disposed on the rear side door 28.

  Moreover, in this embodiment, although it is comprised left-right symmetrically in the vehicle width direction, this invention is not limited to this. For example, the vehicle side part structure of the present invention may be applied only to the front side door 24 on the left side of the vehicle, and conversely, the vehicle side part structure of the present invention may be applied only to the front side door 24 on the right side of the vehicle.

  Further, in the present embodiment, the impact beam 48 extends obliquely downward from the front end portion of the front side door 24 toward the lower end portion of the front side door 24 in the vehicle front-rear direction center, but the present invention is not limited to this. . For example, the impact beam 48 may extend obliquely downward from the rear end portion of the front side door 24 toward the lower end portion of the front side door 24 in the vehicle longitudinal direction center portion. Further, the impact beam 48 may be extended from both sides of the front end portion and the rear end portion of the front side door 24. In this case, the collision load input from the barrier to the impact beam 48 can be distributed to both the front side and the rear side of the vehicle.

  Furthermore, in this embodiment, the convex bead 58 and the convex bead 60 that are continuous to the reinforcing plate 52 are provided, but the present invention is not limited to this. For example, the convex beads 58 and the convex beads 60 may have different shapes, and independent convex beads may be provided in the central portion of the first surface 54 and the central portion of the second surface 56, respectively. Moreover, you may provide the convex bead extended in a vehicle front-back direction. Even in this case, a closed cross section is formed between the reinforcing plate 52 and the door inner panel 44. Furthermore, you may comprise a closed cross section between the door inner panels 44 by structures other than a convex bead. Moreover, it is good also as a shape where a closed cross section is not comprised between the reinforcement plate 52 and the door inner panel 44. FIG. In this case, although not included in claim 2, if the first surface 54 and the second surface 56 are provided, it is included in claim 1.

  Further, in the present embodiment, the reinforcing plate 52 and the floor cross member 40 are disposed so as to overlap in a vehicle side view, but the present invention is not limited to this. For example, the reinforcing plate 52 may be disposed at a position offset to the front or rear of the vehicle with respect to the floor cross member 40 in a side view of the vehicle. Even in this case, the collision load input from the reinforcing plate 52 to the rocker 18 can be transmitted to the floor cross member 40. Note that the configuration in which the reinforcing plate 52 is offset in the vehicle front-rear direction with respect to the floor cross member 40 is not included in claim 4, but is included in claim 1.

  Furthermore, in this embodiment, the bulk member 62 is disposed inside the rocker 18 located between the reinforcing plate 52 and the floor cross member 40, but the present invention is not limited to this. For example, the bulk member 62 may be disposed at a position offset in the vehicle front-rear direction with respect to the floor cross member 40 or the reinforcing plate 52. Moreover, it is good also as a structure which is not provided with the bulk member 62. FIG. These configurations are not included in claim 5, but are included in claim 1. The shape of the bulk member 62 is not particularly limited, and may be any other shape as long as the collision load input to the rocker 18 can be transmitted to the floor cross member 40.

  Furthermore, in this embodiment, as shown in FIG. 2, the impact beam 48 is attached to the door outer panel 42 via the attachment bracket 50, but the present invention is not limited to this. For example, the impact beam 48 may be directly joined to the door outer panel 42 without using the mounting bracket 50. Further, the impact beam 48 may be joined to the door inner panel 44. Furthermore, it is good also as a structure which made the impact beam 48 and the reinforcement plate 52 contact | abut, like the modification shown by FIG.

  As shown in FIG. 4, in the vehicle side part structure according to the modification of the present embodiment, the impact beam 48 is attached to the door outer panel 42 of the front side door 24 via the attachment bracket 64. Here, since the mounting bracket 64 is formed longer than the mounting bracket 50 of FIG. 2, the impact beam 48 and the convex bead 60 of the second surface 56 of the reinforcing plate 52 are in contact with each other. The impact beam 48 and the convex bead 60 of the second surface 56 are joined by welding or the like.

  In the vehicle side part structure according to this modification, a collision load at the time of a side collision can be transmitted from the impact beam 48 to the rocker 18 via the reinforcing plate 52 as in the first embodiment. Further, by joining the impact beam 48 and the reinforcing plate 52, the door inner panel 44 becomes more difficult to be deformed, and it is possible to effectively prevent the door inner panel 44 from coming into contact with the rocker 18.

  In this modification, the impact beam 48 and the reinforcing plate 52 are brought into contact with each other by changing the mounting bracket 64. However, the present invention is not limited to this, and other methods may be adopted. For example, the interval between the door inner panel 44 and the door outer panel 42 may be narrowed. Further, the bulging amount of the convex bead 60 of the reinforcing plate 52 may be increased so as to be in contact with the impact beam 48.

  Furthermore, in this modification, the impact beam 48 and the reinforcing plate 52 are joined by arc welding. However, the present invention is not limited to this, and other methods may be adopted. For example, a portion of the convex bead 60 formed on the second surface 56 of the reinforcing plate 52 is recessed in a substantially arc shape so as to correspond to the outer shape of the impact beam 48, and the impact beam 48 is fitted into the recessed portion. You may let them.

Second Embodiment
Next, the vehicle side part structure according to the second embodiment of the present invention will be described with reference to FIGS. The present embodiment is characterized in that a stopper member 74 is provided inside the floor cross member 40. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  As shown in FIG. 5, the rocker 18 extends in the vehicle front-rear direction of the vehicle side portion 72 of the vehicle 70 of the present embodiment, and the front side door 24 is disposed outside the rocker 18 in the vehicle width direction. Has been. The front side door 24 includes a door outer panel 42 and a door inner panel 44, and an impact beam 48 is attached to the inner surface of the door outer panel 42 in the vehicle width direction via a mounting bracket 50. .

  The impact beam 48 extends obliquely downward from the front end portion of the front side door 24 toward the lower end portion of the front side door 24 at the center in the vehicle front-rear direction. On the other hand, a reinforcing plate 52 is disposed on the door inner panel 44 as in the first embodiment.

  A floor cross member 40 is disposed inside the rocker 18 in the vehicle width direction, and one end 40A of the floor cross member 40 on the outer side in the vehicle width direction is joined to the inner side upper wall portion 34B of the rocker inner panel 34. .

  Here, a stopper member 74 is provided inside the floor cross member 40. The stopper member 74 is disposed on the floor panel 38 and forms a closed section with the floor panel 38.

  The stopper member 74 includes an upper wall portion 74A disposed substantially parallel to the floor panel 38, and an outer vertical wall portion 74B as a contact surface from the end of the upper wall portion 74A on the outer side in the vehicle width direction to the vehicle lower side. Has been extended. Further, an inner vertical wall portion 74C extends downward from the end of the upper wall portion 74A on the inner side in the vehicle width direction. Further, a front wall portion 74D extends from the front end portion of the upper wall portion 74A downward to the vehicle, and a rear wall portion 74E extends from the rear end portion of the upper wall portion 74A downward to the vehicle. An outer flange 74F extends from the lower end of the outer vertical wall portion 74B to the outer side in the vehicle width direction and is joined to the floor panel 38. Similarly, an inner flange 74G extends from the lower end of the inner vertical wall portion 74C to the inner side in the vehicle width direction and is joined to the floor panel 38. A front and rear flange 74H extends in the vehicle longitudinal direction from the lower end of the front wall 74D and the lower end of the rear wall 74E and is joined to the floor panel 38.

  Here, the outer vertical wall portion 74B as the contact surface is inclined outward in the vehicle width direction from the upper end portion toward the lower end portion. This inclination angle is formed at an angle for receiving the inner side vertical wall portion 34C of the rocker inner panel 34 when the rocker 18 rotates toward the vehicle interior at the time of a collision such as a side collision.

(Action and effect)
Next, the operation and effect of the vehicle side part structure of the present embodiment will be described.

  In the vehicle side part structure of the present embodiment, as shown in FIG. 6, the impact beam 48 and the reinforcing plate 52 are in contact with each other due to a side collision, and the reinforcing plate 52 is in contact with the rocker 18 with the door inner panel 44 interposed therebetween. At this time, the rocker 18 tries to rotate toward the inside of the vehicle. Specifically, the rocker 18 rotates around a portion joined to the floor panel 38 (a corner portion between the inner side vertical wall portion 34C and the inner side lower wall portion 34D). At this time, the rotation of the rocker 18 is suppressed by the floor cross member 40. However, when the collision load input to the rocker 18 is large, the floor cross member 40 buckles.

  Here, the inner vertical wall portion 34 </ b> C of the rocker 18 that rotates inward of the vehicle contacts the outer vertical wall portion 74 </ b> B of the stopper member 74. Then, by receiving the inner side vertical wall portion 34C by the outer side vertical wall portion 74B, the rotation of the rocker 18 to the vehicle inner side can be suppressed.

  In the present embodiment, the stopper member 74 having five surfaces is formed, but the present invention is not limited to this. For example, the front wall portion 74D and the rear wall portion 74E may not be provided. Moreover, it is good also as a structure by which the inner side vertical wall part 74C is not provided.

  Moreover, in this embodiment, although the stopper member 74 has been arrange | positioned inside the floor cross member 40, this invention is not limited to this. For example, the stopper member 74 may be disposed at a position offset to the front or rear of the vehicle with respect to the floor cross member 40. In this case, a stopper member higher than the floor cross member 40 may be disposed so that the entire surface of the inner side vertical wall portion 34C can be received.

  Furthermore, although this embodiment demonstrated embodiment which provided the stopper member 74 in the vehicle width direction inner side of the rocker 18 located in the vehicle front-back direction center part of the front side door 24, it is not limited to this, Other positions A stopper member 74 may be disposed on the surface. For example, the stopper member 74 may be disposed inside the rocker 18 in the vehicle width direction where the center pillar 16 is located. This example will be described below with reference to FIG. 7 shows the rocker 18 and the center pillar 16 in the state before the side collision.

  As shown in FIG. 7, the center pillar 16 includes a substantially inner hat-shaped pillar inner panel 82 disposed on the inner side in the vehicle width direction, and a substantially outer hat-shaped pillar outer panel 84 disposed on the outer side in the vehicle width direction. It is configured to include. Further, the lower end portion of the pillar inner panel 82 is joined to the corner portion of the inner side upper wall portion 34B and the inner side vertical wall portion 34C of the rocker inner panel 34, and the lower end portion of the pillar outer panel 84 is joined to the rocker outer panel 36. The outer side upper wall portion 36B and the outer side vertical wall portion 36C are joined to corner portions.

  A gusset 80 is formed inside the rocker 18 in the vehicle width direction. The gusset 80 includes an upper wall portion 80A that extends in the vehicle width direction, and a vertical wall 80B that extends downward from the inner end of the upper wall portion 80A in the vehicle width direction. The upper wall portion 80A extends substantially parallel to the floor panel 38, and one end portion on the outer side in the vehicle width direction is joined to the rocker outer panel 36. Further, the vertical wall 80B is inclined inward in the vehicle width direction from the upper side of the vehicle toward the lower side of the vehicle, and the lower end portion of the vertical wall 80B is extended inward in the vehicle width direction and joined to the floor panel 38. . A stopper member 74 is provided inside the gusset 80.

  As described above, by providing the stopper member 74 at the position of the center pillar 16, the outer vertical wall 74 </ b> B of the stopper member 74 even when the rocker 18 tries to rotate inward of the vehicle around the joint with the floor panel 38. You can catch it. Thereby, relative displacement of the rocker 18 and the center pillar 16 can be suppressed, and deformation of the center pillar 16 inward in the vehicle width direction can be effectively suppressed.

  In the configuration of FIG. 7, the gusset 80 is provided. However, the configuration is not limited thereto, and a configuration without the gusset 80 may be employed. Alternatively, the upper wall portion 80A of the gusset 80 may be made weak so that the rotation of the rocker 18 is induced at the time of a side collision and is received by the stopper member 74.

  As described above, the vehicle front structure according to the first to third embodiments of the present invention has been described. However, these embodiments may be appropriately combined and used without departing from the gist of the present invention. Of course, it can be implemented in the following manner. For example, in the configuration of FIG. 5, the impact beam 48 and the reinforcing plate 52 may be in contact with each other as in the modification of the first embodiment shown in FIG. 4.

12 Vehicle side part 18 Rocker 24 Side door 36B Outer side upper wall part (upper wall part)
36C Outer side vertical wall (outer vertical wall)
38 Floor panel 40 Floor cross member 40 One end (one end of floor cross member)
44 Door inner panel 48 Impact beam 52 Reinforcement plate (reinforcement member)
54 1st surface 56 2nd surface 62 Bulk member 74 Stopper member 74B Outside vertical wall (abutting surface)

Claims (5)

A rocker extending in the vehicle longitudinal direction on the side of the vehicle;
An impact beam disposed in a side door on the outer side in the vehicle width direction than the rocker, and extending obliquely downward from a front end portion or a rear end portion of the side door toward a lower end portion of a vehicle longitudinal direction center portion;
The impact beam is arranged on the inner side in the vehicle width direction at the lower end of the impact beam and joined to the door inner panel constituting the inner side of the side door, and in the vehicle width direction along the upper wall part constituting the upper surface of the rocker. A reinforcing member comprising: a first surface that extends; and a second surface that extends in the vehicle vertical direction along an outer vertical wall portion that extends downward from the vehicle width direction outer end of the upper wall portion;
A vehicle side part structure.   The vehicle side part structure according to claim 1, wherein the reinforcing member and the door inner panel form a closed cross section.   3. The vehicle side part structure according to claim 1, wherein a stopper member having a contact surface for receiving the rocker rotating toward the vehicle inner side at the time of a collision is disposed on the inner side in the vehicle width direction than the rocker. One end of a floor cross member extending in the vehicle width direction on the floor panel is connected to the rocker,
The vehicle side part structure according to any one of claims 1 to 3, wherein the reinforcing member is provided on an opposite side of the floor cross member across the rocker.   The vehicle side part structure according to claim 4, wherein a bulk member is provided inside a rocker positioned between the reinforcing member and the floor cross member.