JP5811940B2 - Body side structure - Google Patents

Description

  The present invention relates to a vehicle body side structure in which a hinge reinforcement is disposed inside an outer reinforcement constituting a center pillar.

  As a vehicle body side structure in which a hinge reinforcement is disposed inside an outer reinforcement constituting a center pillar, a structure described in Patent Document 1 is known. In the vehicle body side part structure described in Patent Document 1, a reinforcing member is attached at a position where a door hinge inside the pillar rein hose is attached.

JP 2002-347655 A

  However, since the vehicle body side part structure described in Patent Document 1 cannot secure a stress sharing region with a sufficient width in the ridgeline of the outer reinforcement, it effectively loads the ridgeline of the reinforcing member at the time of a vehicle collision. However, there is still room for improvement from the viewpoint of ensuring high bending strength and ensuring the collision performance of the vehicle body.

  Accordingly, an object of the present invention is to provide a vehicle body side structure that can ensure a high bending strength by flowing a collision load without increasing the weight of the hinge rein hose and ensure the collision performance of the vehicle body. And

  A vehicle body side part structure according to the present invention includes a pair of center pillar vertical walls extending in the vehicle width direction and a center pillar connecting wall extending in the vehicle front-rear direction and connecting the pair of center pillar vertical walls. A hinge reinforcement provided with a reinforcement, a pair of hinge vertical walls, and a hinge connecting wall for connecting the pair of hinge vertical walls, and disposed inside the outer reinforcement corresponding to the door hinge; The hinge vertical wall is formed with a joint convex portion that protrudes toward the center pillar vertical wall side and is joined to the center pillar vertical wall, and the end portion on the hinge connecting wall side of the joint convex portion is the center pillar vertical wall. The wall is located farther from the center pillar connecting wall than the center in the vehicle width direction.

According to the vehicle body side part structure according to the present invention, the joint convex part joined to the center pillar vertical wall of the outer reinforcement is formed on the hinge vertical wall of the hinge reinforcement. Since the end of the connecting wall side is located farther from the center pillar connecting wall than the center in the vehicle width direction of the center pillar vertical wall, a ridge line formed between the pair of center pillar vertical walls and the center pillar connecting wall In addition, it is possible to ensure a stress sharing region having a sufficient width between the ridge line formed between the pair of hinge vertical walls and the hinge connecting wall and the connection convex portion . Thereby, since high compressive strength is realizable, high bending strength is ensured by flowing a collision load to these ridgelines, and the collision performance of a vehicle body can be ensured.

  According to the present invention, high bending strength can be ensured by flowing a collision load without increasing the weight of the hinge rein hose, and the collision performance of the vehicle body can be ensured.

It is a perspective view of the body side part structure concerning a 1st embodiment. It is sectional drawing of the vehicle body side part structure which concerns on 1st Embodiment. It is a perspective view of a hinge reinforcement. It is sectional drawing of the vehicle body side part structure of a comparative example. It is a perspective view of a hinge reinforcement. It is a perspective view of the vehicle body side part structure which concerns on 2nd Embodiment. It is sectional drawing of the vehicle body side part structure which concerns on 2nd Embodiment. It is a perspective view of a hinge reinforcement. It is a perspective view of an outer reinforcement.

  Hereinafter, an embodiment of a vehicle body side part structure according to the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected about the element which is the same or it corresponds in each figure, and the overlapping description is abbreviate | omitted. In the following description, the vertical direction means the vertical direction in the vehicle vertical direction, the front-rear direction means the front-rear direction in the vehicle front-rear direction, and the inner-outer direction means the inner-outer direction of the vehicle in the vehicle width direction. .

[First Embodiment]
FIG. 1 is a perspective view of a vehicle body side part structure according to the first embodiment. FIG. 2 is a cross-sectional view of the vehicle body side part structure according to the first embodiment. As shown in FIGS. 1 and 2, the vehicle body side part structure 1 according to the first embodiment includes a center pillar 2 erected in the vehicle vertical direction at the vehicle longitudinal direction central portion.

  The center pillar 2 includes an inner reinforcement 3 disposed on the inner side in the vehicle width direction, an outer reinforcement 4 disposed on the outer side in the vehicle width direction, and an outer reinforcement 4 corresponding to a door hinge (not shown). The hinge reinforcement 5 is provided in the interior. “Hinge reinforcement” is also simply referred to as “reinforcing member”.

  The outer reinforcement 4 is formed by bending a single steel plate. This outer reinforcement 4 connects a pair of substantially flat vertical walls 41, 42 extending in the vehicle width direction so as to face each other, and an outer edge in the vehicle width direction of the pair of vertical walls 41, 42 in the vehicle front-rear direction. The substantially flat connecting wall 43 extending in the direction and the substantially flat plate extending from the inner edge in the vehicle width direction of the pair of vertical walls 41, 42 to be separated from each other in the vehicle longitudinal direction and joined to the inner reinforcement 3. And a pair of flange portions 44 and 45.

  FIG. 3 is a perspective view of the hinge reinforcement. As shown in FIGS. 1 to 3, the hinge reinforcement 5 is formed by bending a single steel plate. The hinge reinforcement 5 extends in the vehicle width direction so as to face each other, a pair of vertical walls 51 and 52 disposed inside the pair of vertical walls 41 and 42 of the outer reinforcement 4, and a pair of vertical walls 51, 52 connecting the outer edges in the vehicle width direction and extending in the vehicle front-rear direction, a substantially flat connecting wall 53 disposed inside the connecting wall 43 of the outer reinforcement 4, and a pair of vertical walls 51, A pair of substantially flat plates that extend from the inner edge of the vehicle width direction of 52 in a direction away from each other in the vehicle longitudinal direction and are joined to the pair of flange portions 44 and 45 of the inner reinforcement 3 and the outer reinforcement 4. Flange portions 54 and 55.

  The pair of vertical walls 51, 52 are formed with a pair of joint protrusions 56, 57 that protrude toward the pair of vertical walls 41, 42 of the outer reinforcement 4 and are joined to the pair of vertical walls 41, 42. ing. That is, the joint convex portion 56 formed on the vertical wall 51 disposed on the front side in the vehicle front-rear direction protrudes forward on the front side in the vehicle front-rear direction, and is formed on the vertical wall 52 disposed on the rear side in the vehicle front-rear direction. The part 57 protrudes rearward in the vehicle front-rear direction.

The pair of joint convex portions 56 and 57 are generally called “seat portions”, and are intermittently arranged along the vehicle vertical direction. The outer surfaces of the pair of joint protrusions 56 and 57 are formed in a planar shape in order to ensure the joint strength with the pair of vertical walls 41 and 42. The pair of joint convex portions 56 and 57 extend from the pair of flange portions 54 and 55 toward the connection wall 53 side (vehicle width direction outer side), and the pair of joint convex portions 56 and 57 on the connection wall 53 side. Is located closer to the connecting wall 53 than the center in the vehicle width direction of the pair of vertical walls 51 and 52. That is, the length in the vehicle width direction of the pair of joint projections 56 and 57 is h _1, and the length in the vehicle width direction from the end on the connection wall 53 side of the pair of joint projections 56 and 57 to the connection wall 53. a If you _{h 2,} and has a relationship of _h 1 <h _2. In addition, the shape of a pair of joining convex parts 56 and 57 is not specifically limited, It can be set as various shapes, such as a semicircle, a rectangle, and a triangle.

  The pair of vertical walls 41, 42 and the pair of joint projections 56, 57 are joined together, and the joint wall 43 and the joint wall 53 are joined to each other so that the hinge rein hose is placed inside the outer reinforcement 4. Is provided. In addition, these joining can be performed by resistance welding, such as spot welding, for example.

  Here, a comparative example of the present embodiment will be described with reference to FIGS. 4 and 5.

  FIG. 4 is a cross-sectional view of a vehicle body side structure of a comparative example. FIG. 5 is a perspective view of the hinge reinforcement. As shown in FIGS. 4 and 5, the vehicle body side structure 1 ′ of the comparative example is basically the same as the vehicle body side structure 1 according to the present embodiment, and a pair formed on the hinge reinforcement 5 ′. Only the dimensions of the joint projections 56 'and 57' are different from those of the vehicle body side structure 1 according to the present embodiment.

  That is, the hinge reinforcement 5 ′ of the vehicle body side structure 1 ′ includes a pair of vertical walls 51, 52 corresponding to the pair of vertical walls 51, 52, a connection wall 53 ′ corresponding to the connection wall 53, and a pair of A pair of flange portions 54 ′ and 55 ′ corresponding to the flange portions 54 and 55 are provided, and a pair of vertical walls 51 ′ and 52 ′ are paired with a pair of joint convex portions 56 and 57. Joint convex portions 56 'and 57' are formed.

The pair of the joint projection 56 ', 57' the length in the vehicle width direction and h _1, a vehicle width leading to the connecting wall 53 from the end portion of the connecting wall 53 side of the pair of joint projection 56 ', 57' When the length in the direction _{h 2,} and has a relationship of _h 1> h _2.

In this way, when the relationship of h ₁ > h ₂ is satisfied, that is, the ends on the connecting wall 53 ′ side of the pair of joint convex portions 56 ′ and 57 ′ are in the vehicle width direction of the pair of vertical walls 51 ′ and 52 ′. When located closer to the connecting wall 53 than the center, it is connected to the ridge line L1 ′ formed between the pair of vertical walls 41 ′ and 42 ′ and the connecting wall 43 ′ and the pair of vertical walls 51 ′ and 52 ′. A stress-sharing region having a sufficient width cannot be ensured between the ridge line L2 ′ formed between the wall 53 ′ and the connecting convex portion . For this reason, it becomes difficult to realize high compressive strength.

On the other hand, according to the vehicle body side structure 1 according to the present embodiment, the relationship of h ₁ <h ₂ is satisfied, and the end portions on the connection wall 53 side of the pair of joint convex portions 56 and 57 are paired vertically. Since the walls 51 and 52 are located farther from the connection wall 53 than the center in the vehicle width direction, the ridgeline L1 formed between the pair of vertical walls 41 and 42 and the connection wall 43, or the pair of vertical walls 51 and 52 A stress sharing region with a sufficient width can be secured between the ridge line L2 formed between the connecting wall 53 and the connecting wall 53 and the connecting convex portion . Thereby, since high compressive strength is realizable, high bending strength is ensured by flowing a collision load to these ridgelines, and the collision performance of a vehicle body can be ensured.

[Second Embodiment]
Next, the vehicle body side part structure according to the second embodiment will be described.

  FIG. 6 is a perspective view of a vehicle body side part structure according to the second embodiment. FIG. 7 is a cross-sectional view of a vehicle body side part structure according to the second embodiment. As shown in FIGS. 7 and 8, the vehicle body side structure 101 according to the second embodiment includes a center pillar 102 that is erected in the vehicle vertical direction at the vehicle longitudinal direction center.

  The center pillar 102 includes an inner reinforcement 103 disposed on the inner side in the vehicle width direction, an outer reinforcement 104 disposed on the outer side in the vehicle width direction, and an outer reinforcement 104 corresponding to a door hinge (not shown). Hinge reinforcement 105 disposed in the interior of the main body.

  FIG. 8 is a perspective view of the hinge reinforcement. As shown in FIGS. 7 to 8, the hinge reinforcement 105 is formed by bending a single steel plate. The hinge reinforcement 105 connects a pair of substantially flat vertical walls 151 and 152 extending in the vehicle width direction so as to face each other and an outer edge in the vehicle width direction of the pair of vertical walls 151 and 152 in the vehicle front-rear direction. A connecting wall 153 extending in the direction.

  A joint concave bead 158 that is recessed inward in the vehicle width direction and joined to the outer reinforcement 104 is formed at the center of the connecting wall 153 in the vehicle longitudinal direction. In addition, in order to ensure the joining strength with the outer reinforcement 104, the outer surface of the joining concave bead 158 is formed in a planar shape.

  FIG. 9 is a perspective view of the outer reinforcement. As shown in FIGS. 6, 7, and 9, the outer reinforcement 104 is formed by bending a single steel plate. The outer reinforcement 104 extends in the vehicle width direction so as to face each other, and a pair of vertical walls 141 and 142 disposed outside the pair of vertical walls 151 and 152 of the hinge reinforcement 105, and a pair of vertical walls. The connecting walls 143 extending in the vehicle front-rear direction by connecting the outer edges in the vehicle width direction of the 141, 142 and disposed outside the connecting wall 153 of the hinge reinforcement 105, and the vehicle width of the pair of vertical walls 141, 142 A pair of substantially flat flange portions 144 and 145 that extend from the inner edge in the direction of the vehicle in the longitudinal direction and are joined to the inner reinforcement 103.

  The pair of vertical walls 141, 142 are formed with a pair of joint projections 146, 147 that protrude toward the pair of vertical walls 51, 52 of the hinge reinforcement 105 and are joined to the pair of vertical walls 51, 52. ing. That is, the joint convex part 146 formed on the vertical wall 141 disposed on the front side in the vehicle front-rear direction protrudes forward on the vehicle front-rear direction, and is formed on the vertical wall 142 disposed on the rear side in the vehicle front-rear direction. The portion 147 protrudes rearward in the vehicle front-rear direction.

  The pair of joint protrusions 146 and 147 are generally called “seat portions” and are intermittently arranged along the vehicle vertical direction. The inner surfaces of the pair of joint protrusions 146 and 147 are formed in a planar shape in order to ensure the joint strength with the pair of vertical walls 151 and 152. And a pair of joining convex part 146,147 is extended toward the connection wall 143 side (vehicle width direction outer side) from a pair of flange parts 144,145. In this case, end portions on the pair of flange portions 144 and 145 side in the pair of joint convex portions 146 and 147 are from ridge lines L3 formed between the pair of vertical walls 141 and 142 and the pair of flange portions 144 and 145. It is preferable that they are sufficiently separated. In addition, the shape of a pair of joining convex part 146,147 is not specifically limited, It can be set as various shapes, such as a semicircle, a rectangle, and a triangle.

  The connection wall 143 is formed with a concave bead 148 that extends linearly along the vehicle vertical direction and is recessed toward the connection wall 153 side (in the vehicle width direction) of the hinge reinforcement 105. Further, the concave bead 148 is formed with a joint concave portion 149 which is further recessed toward the connection wall 153 side (in the vehicle width direction) of the hinge reinforcement 105 and joined to the joint concave bead 158 of the connection wall 153.

  The joint concave portion 149 is generally called a “seat portion” and is intermittently disposed along the concave bead 148. The joint recess 149 is wider in the vehicle front-rear direction than the joint recess bead 158 of the hinge reinforcement 105 than the width of the joint recess bead 158 of the hinge reinforcement 105 in the vehicle front-rear direction. ing. Further, the inner surface of the bonding recess 149 is formed in a planar shape in order to ensure the bonding strength with the bonding recess bead 158. Note that the shape of the bonding recess 149 is not particularly limited, and may be various shapes such as a semicircle, a rectangle, and a triangle.

  The pair of joint convex portions 146 and 147 and the pair of vertical walls 151 and 152 are joined, and the joint concave portion 149 and the joint concave bead 158 are joined, so that the hinge is provided inside the outer reinforcement 104. A reinforcement 105 is provided. In addition, these joining can be performed by resistance welding, such as spot welding, for example.

  Thus, according to the vehicle body side part structure according to the second embodiment, it is possible to secure a stress sharing region having a sufficient width in the ridgeline L3. Thereby, since high compressive strength is realizable, high bending strength is ensured by flowing a collision load to these ridgelines, and the collision performance of a vehicle body can be ensured.

  In addition, since the bottom of the concave bead 148 has a small acting stress and little influence on the bending strength, a joint concave portion 149 to be joined to the connecting wall 153 is formed at a position deeper than the concave bead 148. , A decrease in compressive strength can be suppressed.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment.

  For example, in the vehicle body side part structure according to the first embodiment, a pair of joint recesses (recessed in the pair of vertical walls (inward in the vehicle width direction) of the hinge reinforcement on the pair of vertical walls of the outer reinforcement) (Seat part) may be formed, and the connecting wall side end of the joint recess may be located farther from the connecting wall than the center in the vehicle width direction of the vertical wall of the outer reinforcement.

  Moreover, in the vehicle body side part structure according to the first embodiment, a concave bead and a joint concave portion are formed on the connecting wall of the outer reinforcement, similarly to the connecting wall of the outer reinforcement in the second embodiment, It is good also as what joins this junction recessed part and the connection wall of hinge reinforcement.

  DESCRIPTION OF SYMBOLS 1 ... Body side part structure, 2 ... Center pillar, 3 ... Inner reinforcement, 4 ... Outer reinforcement, 41 ... Hinge reinforcement, 41, 42 ... Vertical wall (center pillar vertical wall), 43 ... Connection Wall (center pillar connecting wall), 44, 45 ... flange, 51, 52 ... vertical wall (hinge vertical wall), 53 ... connecting wall (hinge connecting wall), 54, 55 ... flange, 56, 57 ... joint convex 101: Body side structure, 102: Center pillar, 103 ... Inner reinforcement, 104 ... Outer reinforcement, 105 ... Hinge reinforcement, 141, 142 ... Vertical wall, 143 ... Connection wall, 144 145 ... Flange part, 146, 147 ... Joint convex part, 148 ... Concave bead, 149 ... Joint concave part, 151, 152 ... Vertical wall, 153 ... Connection wall, 158 ... Joint concave bead, 1 ... ridge, L2 ... ridge, L3 ... ridgeline.

Claims (1)

A center pillar outer reinforcement comprising: a pair of center pillar vertical walls extending in the vehicle width direction; and a center pillar connecting wall extending in the vehicle front-rear direction to connect the pair of center pillar vertical walls;
A hinge reinforcement comprising a pair of hinge vertical walls and a hinge connecting wall connecting the pair of hinge vertical walls, the hinge reinforcement being disposed inside the outer reinforcement corresponding to a door hinge;
Have
The hinge vertical wall is formed with a joint protrusion that protrudes toward the center pillar vertical wall and is joined to the center pillar vertical wall.
The end of the joint projection on the hinge connection wall side is at a position farther from the center pillar connection wall than the center in the vehicle width direction of the center pillar vertical wall.
Car body side structure.

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