JP2009184527A - Pillar reinforcement structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent breaking of a pillar at side collision of a vehicle while suppressing increase of weight. <P>SOLUTION: By a projection part 22F for forming a clearance formed on joint flanges 22A, 22B of a B pillar inner 22, a clearance 42 is formed between lower end edges 24D of the joint flanges 24A, 2B of a B pillar upper reinforcement 24 and joint flanges 22A, 22B of the B pillar inner 22. At side collision of the vehicle, the lower end edges 24D of the joint flanges 24A, 24B of the B pillar upper reinforcement 24 are not abutted on the joint flanges 22A, 22B of the B pillar inner 22. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a pillar reinforcing structure, and more particularly to a pillar reinforcing structure used for a vehicle such as an automobile.

A pillar reinforcing structure used for vehicles such as automobiles is known (Patent Document 1). In this pillar reinforcing structure, when another vehicle collides (side collision) with the side surface of the vehicle and the lower part of the B pillar is deformed by the impact, the B pillar is constituted by the breakage preventing means provided in the reinforcing member. The flange that joins the outer panel and the inner panel is prevented from breaking.
Japanese Patent Laid-Open No. 10-329752

  However, in the above-described prior art, since the fracture preventing means is constituted by a cavity and a buckling structure, the rigidity of the reinforcing member is reduced by the cavity. As a result, in order to ensure the rigidity of the reinforcing member, it is necessary to increase the thickness of the reinforcing member, which increases the weight.

  In view of the above-described facts, an object of the present invention is to obtain a pillar reinforcing structure capable of preventing the pillar from being broken at the time of a vehicle side collision while suppressing an increase in weight.

  The pillar reinforcing structure according to the first aspect of the present invention includes a pillar outer that forms an outer portion in the vehicle width direction of the pillar, and a reinforcement that is disposed inside the pillar and has joints formed at both end portions in the vehicle longitudinal direction. And a joining portion that forms a vehicle width direction inner side portion of the pillar and the vehicle body longitudinal direction both ends and overlaps with a joining portion of the reinforcing member, and an end portion in a vertical direction of the joining portion of the reinforcing member, And a pillar inner having a gap therebetween.

  Accordingly, the pillar outer constitutes the outer side portion of the pillar in the vehicle width direction, and the pillar inner constitutes the inner side portion of the pillar in the vehicle width direction. Further, a reinforcing member is disposed inside the pillar. Further, the joints formed at both ends of the pillar inner ends of the vehicle body in the longitudinal direction and the joints formed at both ends of the reinforcing members in the longitudinal direction of the vehicle body are overlapped, and the joint portions of the pillar inner are at the joints of the reinforcing members. There is a gap between the vertical end. For this reason, when the pillar is deformed, it is possible to prevent the end portion in the vertical direction at the joint portion of the reinforcing member from hitting the joint portion of the pillar inner by the gap between the joint portion of the pillar inner and the joint portion of the reinforcing member. As a result, breakage of the joint portion of the pillar inner can be prevented. Moreover, since it is the structure which has a clearance gap between the junction part of a pillar inner part and the up-down direction edge part in the junction part of a reinforcement member, the increase in a weight can be suppressed compared with the structure which increases plate | board thickness.

  According to a second aspect of the present invention, in the pillar reinforcing structure according to the first aspect, the pillar inner has a gap in the entire front-rear direction of the vehicle body with respect to the vertical end of the joint of the reinforcing member. To do.

  Therefore, since the pillar inner has a gap in the entire front-rear direction of the vehicle body with respect to the end in the vertical direction at the joint portion of the reinforcing member, breakage can be prevented in the entire front-rear direction of the vehicle body at the joint of the pillar inner.

  According to a third aspect of the present invention, in the pillar reinforcing structure according to the first aspect, the pillar inner has a gap closer to the center in the vehicle longitudinal direction of the pillar with respect to the vertical end of the joint of the reinforcing member. It is characterized by having.

  Therefore, since the pillar inner has a gap near the center of the pillar in the longitudinal direction of the pillar with respect to the vertical end of the joint of the reinforcing member, the pillar inner particularly breaks near the center of the pillar inner in the joint of the pillar inner where breakage easily occurs. Can be prevented.

  According to a fourth aspect of the present invention, in the pillar reinforcing structure according to any one of the first to third aspects, the joint portion of the pillar inner is formed to bend in a direction away from the joint portion of the reinforcing member. The gap is formed.

  Accordingly, since the joint portion of the pillar inner is curved and formed in a direction away from the joint portion of the reinforcing member, a configuration is simplified.

  According to a fifth aspect of the present invention, in the pillar reinforcing structure according to any one of the first to third aspects, the joint portion of the pillar inner is formed to bend in a direction away from the joint portion of the reinforcing member. The gap is formed, and a spacer is disposed in the gap.

  Accordingly, the joint portion of the pillar inner is curved toward the direction away from the joint portion of the reinforcing member to form a gap, and the spacer is disposed in the gap. Therefore, the spacer joins the reinforcing member when the pillar is deformed. It can prevent that the clearance gap between a part and the junction part of a pillar inner is crushed.

  According to a sixth aspect of the present invention, in the pillar reinforcing structure according to any one of the first to third aspects, the joint portion of the pillar inner is formed to bend in a direction away from the joint portion of the reinforcing member. The gap is formed, and a convex portion protruding from the joint portion of the reinforcing member toward the joint portion of the pillar inner is formed in the gap.

  Accordingly, the joint portion of the pillar inner is curved and formed in a direction away from the joint portion of the reinforcing member to form a gap, and the convex portion protruding from the joint portion of the reinforcing member toward the joint portion of the pillar inner is formed in the gap. Since it has, it can prevent that the clearance gap between the junction part of a reinforcing member and the junction part of a pillar inner is crushed by a convex part at the time of pillar deformation | transformation.

  The present invention according to claim 1 can prevent the pillar from being broken at the time of a vehicle side collision while suppressing an increase in weight.

  According to the second aspect of the present invention, it is possible to prevent breakage in the entire longitudinal direction of the vehicle body at the joint portion of the pillar inner.

  According to the third aspect of the present invention, breakage can be prevented near the center in the front-rear direction at the joint portion of the pillar inner where breakage is likely to occur.

  According to the fourth aspect of the present invention, the pillar can be prevented from being broken at the time of a vehicle side collision while suppressing an increase in weight with a simple configuration.

  The present invention according to claim 5 can prevent the gap between the joint portion of the reinforcing member and the joint portion of the pillar inner from being crushed.

  The present invention according to claim 6 can prevent the gap between the joint portion of the reinforcing member and the joint portion of the pillar inner from being crushed.

  Hereinafter, a first embodiment of a pillar reinforcing structure according to the present invention will be described with reference to FIGS. In each figure, an arrow FR indicates the vehicle front side, an arrow UP indicates the vehicle upper side, and an arrow IN indicates the vehicle width direction inner side.

  FIG. 8 is a schematic side view showing a vehicle body to which the automobile pillar reinforcing structure according to this embodiment is applied.

  As shown in FIG. 8, the side surface portion of the vehicle body 10 of the present embodiment is configured with a cycle outer 12, and the upper portion of the cycle outer 12 is a roof side rail outer 14 that extends along the vehicle longitudinal direction. The lower portion of the outer cylinder 12 is a rocker outer 16 extending in the longitudinal direction of the vehicle body, and a B-pillar outer 18 extending from the roof side rail outer 14 to the rocker outer 16 is formed in the longitudinal center portion of the cyclic outer 12. ing.

  FIG. 5 is a schematic side view showing the pillar reinforcing structure of the automobile as seen from the inner side in the vehicle width direction, and FIG. 7 is an enlarged sectional view taken along the line 7-7 in FIG. .

  As shown in FIG. 7, the B pillar 20 is closed by a B pillar outer 18 of the cylinder outer 12 that constitutes an outer portion in the vehicle width direction of the B pillar 20 and a B pillar inner 22 that constitutes an inner portion in the vehicle width direction of the B pillar 20. It has a cross-sectional structure. Further, the cross-sectional shape of the B pillar outer 18 viewed from the vertical direction of the vehicle body is a hat cross-sectional shape with the opening directed inward in the vehicle width direction.

  The B pillar 20 is the second pillar from the front side of the vehicle body among the plurality of pillars formed at predetermined intervals in the vehicle body longitudinal direction on the side of the vehicle compartment. In the sedan type vehicle body 10 shown in FIG. The center pillar is located between the front pillar (A pillar) 10A and the quarter pillar (C pillar) 10B.

  As shown in FIGS. 6 and 7, the cross-sectional shape of the B pillar inner 22 viewed from the vertical direction of the vehicle body is a hat cross-sectional shape with the opening facing outward in the vehicle width direction. Are formed with joint flanges 22A and 22B as joints.

  As shown in FIG. 5, a B pillar apparel reinforcement 24 as an upper reinforcing member is provided at the upper part in the closed section structure of the B pillar 20, and at the lower part in the closed section structure of the B pillar 20. A B-pillar reinforcement 26 as a lower reinforcing member is provided.

  As shown in FIG. 7, the B pillar apparel reinforcement 24 is disposed along the B pillar outer 18 on the inner side in the vehicle width direction of the B pillar outer 18. In addition, the cross-sectional shape of the B pillar apparel reinforcement 24 seen from the vehicle body vertical direction is a hat cross-sectional shape with the opening directed inward in the vehicle width direction. The joining flanges 24A and 24B are formed.

  The B pillar rear reinforcement 26 is disposed along the B pillar outer 18 on the inner side in the vehicle width direction of the B pillar outer 18. The cross-sectional shape of the B pillar reinforcement 26 viewed from the vehicle body vertical direction is a hat cross-sectional shape with the opening directed inward in the vehicle width direction. The joining flanges 26A and 26B are formed.

  As shown in FIG. 5, the upper part 26C of the B pillar rear reinforcement 26 and the lower part 24C of the B pillar upper reinforcement 24 overlap with each other in the vehicle width direction, and as shown in FIG. The upper part 26 </ b> C of the B 26 is disposed on the outer side in the vehicle width direction of the lower part 24 </ b> C of the B pillar apparel reinforcement 24.

  Note that the joining flange 24A of the B pillar upper reinforcement 24 and the joining flange 26A of the B pillar lower reinforcement 26 are coupled between the joining flange 18A of the B pillar outer 18 and the joining flange 22A of the B pillar inner 22, respectively. The joint flange 24B of the B-pillar reinforcement 24 and the joint flange 26B of the B-pillar reinforcement 26 are coupled between the joint flange 18B of the B-pillar outer 18 and the joint flange 22B of the B-pillar inner 22, respectively.

  As shown in FIG. 3, a rocker outer reinforcement 30 is disposed along the vehicle body front-rear direction on the inner side in the vehicle width direction of the rocker outer 16 of the cylinder outer 12. The cross-sectional shape of the rocker outer reinforcement 30 as viewed from the front-rear direction of the vehicle body is a hat cross-sectional shape with the opening directed inward in the vehicle width direction. 30A and 30B are formed. In addition, a rocker inner 32 is disposed along the vehicle longitudinal direction on the inner side in the vehicle width direction of the rocker outer reinforcement 30. The cross-sectional shape of the rocker inner 32 viewed from the front-rear direction of the vehicle body is a hat cross-sectional shape with the opening facing outward in the vehicle width direction, and joint flanges 32A and 32B as joints are provided at both upper and lower edge portions of the opening. Is formed.

  The joint flanges 30A and 30B of the rocker outer reinforcement 30 are respectively coupled to the joint flanges 30A and 30B of the rocker inner 32, and the rocker outer reinforcement 30 and the rocker inner 32 form a closed cross-sectional structure 34 that extends in the longitudinal direction of the vehicle body. ing. The lower part 22C of the B pillar inner 22 penetrates the closed cross-section structure 34 from the upper side of the vehicle body toward the lower side of the vehicle body, and the lower end edge 22D is coupled between the joint flange 30B of the rocker outer 30 and the joint flange 32B of the rocker inner 32. Has been.

  The vertical intermediate portion 22E of the B pillar inner 22 is coupled between the joint flange 30A of the rocker outer 30 and the joint flange 32A of the rocker inner 32. Further, the lower end edge portion 26D of the B pillar lower reinforcement 26 is coupled to the outer surface in the vehicle width direction of the vertical wall portion 30C of the rocker outer reinforcement 30, and the joining flange 16A formed at the lower end of the rocker outer 16 is The joint flange 30B of the rocker inner 32 is coupled to the outer surface in the vehicle width direction. Further, a joining flange 36 </ b> A formed at the vehicle width direction end portion of the floor panel 36 toward the vehicle body upper side is coupled to the lower portion of the vehicle width direction inner side surface of the vertical wall portion 32 </ b> C of the rocker inner 32.

  A floor cross member 38 is disposed on the upper surface side of the floor panel 36 along the vehicle width direction. Although not shown in the drawings, the cross-sectional shape of the floor cross member 38 viewed from the vehicle width direction is a hat cross-sectional shape with the opening facing the vehicle body lower side. 38A is formed. These joining flanges 38A are coupled to the upper surface 36B of the floor panel 36.

  Further, a joint flange 38B having a U-shape when viewed from the vehicle width direction is formed at the end of the floor cross member 38 in the vehicle width direction. The joint flange 38B is a vehicle in the vertical wall portion 32C of the rocker inner 32. It is connected to the inner surface in the width direction.

  3 indicates a hinge of the rear door provided on the B pillar 20, and this hinge 50 is a combination of the upper part 26 </ b> C of the B pillar lower reinforcement 26 and the lower part 24 </ b> C of the B pillar upper reinforcement 24. It is attached to the outside in the vehicle width direction.

  As shown in FIG. 1, a portion of the joint flange 22 </ b> A of the B pillar inner 22 located on the inner side in the vehicle width direction with respect to the lower portion 24 </ b> C of the joint flange 24 </ b> A of the B pillar apparel reinforcement 24 is convex inward in the vehicle width direction. A gap forming convex portion 22F is formed as a gap forming means. A spacer 40 is provided inside the gap forming convex portion 22F.

  That is, the gap 42 is formed between the lower edge 24D as the vertical end of the joining flange 24A of the B pillar appa- ration 24 and the joining flange 22A of the B pillar inner 22 by the gap forming convex portion 22F. It is formed in the entire longitudinal direction of the vehicle body with respect to the lower end edge 24D of the joining flange 24A of the ment 24, and a spacer 40 is provided in the gap forming convex portion 22F.

  More specifically, the portion of the joint flange 22A of the B pillar inner 22 located on the inner side in the vehicle width direction with respect to the lower portion 24C of the joint flange 24A of the B pillar apparel reinforcement 24 is convex inward in the vehicle width direction. The gap forming convex portion 22F is formed with a predetermined length L1 in the vertical direction of the vehicle body. The interval W1 between the gap forming convex portion 22F and the lower portion 24C of the B pillar apparel reinforcement 24 is gradually narrowed at the inclined portions 22G formed at both the upper and lower ends.

  The spacer 40 is made of a plate material made of a resin material having a plate thickness W1, and is arranged along the vertical direction of the vehicle body. The length L2 of the spacer 40 in the vertical direction of the vehicle body is set shorter than the length L3 in the vertical direction of the vehicle body of the flat surface portion 22H between the upper and lower inclined portions 22G of the gap forming convex portion 22F. The spacer 40 is fixed to the B-pillar reinforcement 24 by adhesion or the like.

  Further, the lower end 40 </ b> A of the spacer 40 is located above the vehicle body from the lower end edge 24 </ b> D of the B pillar apparel reinforcement 24, and the lower end edge 24 </ b> D of the B pillar apparel reinforcement 24 is the lower end of the flat portion 22 </ b> H of the B pillar inner 22. It is located above the vehicle body from 22J.

  Similarly, a gap-forming convex portion 22F is also formed on the joint flange 22B of the B pillar inner 22 between the lower edge 24D of the joint flange 24B of the B pillar apparel reinforcement 24 and the joint flange 22B of the B pillar inner 22. A gap 42 is formed. A spacer 40 is provided in the gap 42.

  Therefore, as shown in FIG. 4, when a vehicle side collision occurs, the bumper K of the other vehicle collides with the B pillar outer 18 of the cylinder outer 12 from the outside in the vehicle width direction to the inside in the vehicle width direction, and the lower part of the B pillar is the inside in the vehicle width direction. 2, as shown in FIG. 2, the gap forming convex portion 22 </ b> F causes a gap between the lower edge 24 </ b> D of the joining flange 24 </ b> A of the B pillar apparel reinforcement 24 and the joining flange 22 </ b> A of the B pillar inner 22, and B Since a gap 42 is formed between the lower end edge 24D of the joining flange 24B of the pillar upside reinforcement 24 and the joining flange 22B of the B pillar inner 22, the lower end edge 24D of the joining flange 24A of the B pillar upside reinforcement 24 is B. It does not hit the joining flange 22A of the pillar inner 22, and the B pillar up Bottom edge 24D of the joint flange 24B of the reinforcement 24 is prevented touch the joint flange 22B of the B pillar inner member 22. Further, the gap 42 is prevented from being crushed by the spacer 40.

  Next, the operation of this embodiment will be described.

  According to the automobile pillar reinforcement structure of the present embodiment, as shown in FIG. 4, the bumper K of the other vehicle faces from the outer side in the vehicle width direction to the inner side in the vehicle width direction at the bottom of the B pillar outer 18 of the cylinder outer 12 at the time of the vehicle side collision. 2 and the lower part of the B pillar 20 is deformed inward in the vehicle width direction, the joint flanges 24A and 24B of the B pillar apparel reinforcement 24 are also deformed and bent inward in the vehicle width direction as shown in FIG. .

  At this time, in this embodiment, as shown in FIG. 1, the lower end edges of the joining flanges 24A and 22B of the B pillar apparel reinforcement 24 are formed by the gap forming convex portions 22F formed on the joining flanges 22A and 22B of the B pillar inner 22. A gap 42 is formed between 24D and the joining flanges 22A and 22B of the B pillar inner 22. For this reason, as shown in FIG. 2, even when the lower part of the B pillar 20 is deformed inward in the vehicle width direction, the lower end edge 24D of the B pillar apparel reinforcement 24A is connected to the lower end edge 24D of the B pillar inner 22. Do not hit 22A, 22B.

  Further, in the present embodiment, the spacer 40 provided in the gap forming convex portion 22 </ b> F is provided between the lower end edge 24 </ b> D of the joint flanges 24 </ b> A and 24 </ b> B of the B pillar apparel reinforcement 24 and the joint flanges 22 </ b> A and 22 </ b> B of the B pillar inner 22. The gap 42 is not crushed at the time of a vehicle side collision.

  As a result, it is possible to prevent the lower end edge 24D of the joint flanges 24A and 24B of the B pillar apparel reinforcement 24 from hitting the joint flanges 22A and 22B of the B pillar inner 22 and to prevent the B pillar inner 22 from breaking at the time of a vehicle side collision. it can.

  In the present embodiment, the gap forming convex portions 22F are formed on the joint flanges 22A and 22B of the B pillar inner 22, and the joint flanges 24A and 24B of the B pillar apparel reinforcement 24 and the joint flanges 22A and 22B of the B pillar inner 22 are formed. Therefore, the increase in weight can be suppressed as compared with the configuration in which the plate thickness of the B pillar inner 22 or the like is increased.

  Further, in the present embodiment, the gap 42 is formed in the entire area in the vehicle front-rear direction with respect to the lower end edge 24D of the joining flanges 24A, 24B of the B-pillar reinforcement 24, so that the joining flanges 22A, 22B of the B-pillar inner 22 are formed. Breakage can be prevented throughout the vehicle longitudinal direction.

  In the above embodiment, the gap 42 is formed in the entire area in the longitudinal direction of the vehicle body with respect to the lower end edge 24D of the joining flanges 24A and 24B of the B pillar apparel reinforcement 24. With respect to the lower end edge 24D of the joining flanges 24A and 24B, a part in the longitudinal direction of the vehicle body, for example, a portion closer to the central portion of the B pillar 20 in the longitudinal direction of the vehicle body, where breakage is likely to occur ( The gap 42 may be formed in a part near the rear, or a part near the front in the joint flange on the rear side of the vehicle body.

  Moreover, in the said embodiment, although the spacer 40 was fixed to the B pillar apparel reinforcement 24, you may fix the spacer 40 to the plane part 22H of the convex part 22F for clearance gap formation. The spacer 40 may be made of a material other than a resin material such as rubber or metal.

  In the above embodiment, the lower end 40 </ b> A of the spacer 40 is located above the vehicle body from the lower end edge 24 </ b> D of the B pillar apparel reinforcement 24, but the lower end 40 </ b> A of the spacer 40 is set at the same position as the lower end edge 24 </ b> D of the B pillar apparel reinforcement 24. Alternatively, the lower end 40A of the spacer 40 may be positioned below the vehicle body from the lower end edge 24D of the B pillar apparel reinforcement 24.

  Next, 2nd Embodiment of the pillar reinforcement structure of this invention is described according to FIG.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  FIG. 9 is a cross-sectional view corresponding to FIG.

  As shown in FIG. 9, in this embodiment, it is the structure except the spacer 40 in 1st Embodiment.

  More specifically, the gap forming convexity that is convex inward in the vehicle width direction is formed at the portion of the joint flange 22A of the B pillar inner 22 that is inside the lower end edge 24D of the joint flange 22A of the B pillar inner 22 in the vehicle width direction. The portion 22F is formed with a predetermined length L1 in the vertical direction of the vehicle body.

  Similarly, a gap forming convex portion 22F is formed on the joint flange 22B of the B pillar inner 22 as well.

  Therefore, in the present embodiment, as shown in FIG. 4 of the first embodiment, the bumper K of the other vehicle is moved from the outer side in the vehicle width direction to the inner side in the vehicle width direction at the bottom of the B pillar outer 18 of the cylinder outer 12 at the time of the vehicle side collision. When a collision occurs, the lower part of the B pillar is deformed inward in the vehicle width direction, and the joint flanges 24A and 24B of the B pillar apparel reinforcement 24 are also deformed and bent inward in the vehicle width direction. The lower ends of the joining flanges 24A and 24B of the B pillar apparel reinforcement 24 are formed by the gap 42 formed by the gap forming convex portion 22F between the lower end edge 24D of the flanges 24A and 24B and the joining flanges 22A and 22B of the B pillar inner 22. The edge 24 </ b> D does not hit the joining flanges 22 </ b> A and 22 </ b> B of the B pillar inner 22.

  For this reason, it is possible to prevent the lower end edge 24D of the joining flanges 24A and 24B of the B-pillar reinforcement 24 from hitting the joining flanges 22A and 22B of the B-pillar inner 22, and to prevent the B-pillar inner 22 from breaking.

  Further, in the present embodiment, since the gap forming convex portion 22F is formed on the joint flanges 22A and 22B of the B pillar inner 22, the increase in the weight is suppressed with a simple configuration, and the B pillar 20 of the B pillar 20 is prevented during a vehicle side collision. Breakage can be prevented.

  Next, 3rd Embodiment of the pillar reinforcement structure of this invention is described according to FIG.10 and FIG.11.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  FIG. 10 is a cross-sectional view corresponding to FIG. 1, and FIG. 11 is a perspective view of the B pillar apparel reinforcement 24 as viewed from the obliquely inner front side of the vehicle body.

  As shown in FIG. 10, in this embodiment, instead of the spacer 40 in the first embodiment, a convex portion 24E is formed on the lower portion 24C of the joining flange 24A of the B pillar apparel reinforcement 24.

  More specifically, the convex portion 24E is curved in an arc shape toward the inner side in the vehicle width direction near the upper end (in the gap 42) of the lower end edge 24D of the lower portion 24C in the joint flange 24A of the B-pillar reinforcement 24. Is formed.

  As shown in FIG. 11, a convex portion 24 </ b> E is similarly formed on the joint flange 24 </ b> B of the B-pillar reinforcement 24.

  Therefore, according to the automobile pillar reinforcement structure of the present embodiment, as shown in FIG. 4 of the first embodiment, the bumper K of the other vehicle is placed on the lower side of the B pillar outer 18 of the cylinder outer 12 in the vehicle width direction outside at the time of the vehicle side collision. When the lower portion of the B pillar 20 is deformed inward in the vehicle width direction, the joint flange 24A of the B pillar apparel reinforcement 24 is also deformed and bent inward in the vehicle width direction.

  At this time, in the present embodiment, the gap forming convex portion 22F of the B pillar inner 22 is provided between the lower end edge 24D of the flange flanges 24A and 24B of the B pillar upgrade 24 and the joint flanges 22A and 24B of the B pillar inner 22. Since the gap 42 is formed, the lower end edges 24D of the joining flanges 24A and 24B of the B pillar apparel reinforcement 24 do not hit the joining flanges 22A and 22B of the B pillar inner 22.

  Further, in the present embodiment, the convex portion 24E provided in the gap forming convex portion 22F causes the lower end edge 24D of the joint flange 24A, 24B of the B pillar apparel reinforcement 24 and the joint flange 22A, 24B of the B pillar inner 22 to be connected. The gap 42 between them is not crushed.

  For this reason, it is possible to prevent the lower end edge 24D of the joining flanges 24A and 24B of the B-pillar reinforcement 24 from hitting the joining flanges 22A and 22B of the B-pillar inner 22, and to prevent the B-pillar inner 22 from breaking.

  Further, in the present embodiment, the gap forming convex portions 22F are formed on the joint flanges 22A and 22B of the B pillar inner 22, and the convex portions 24E are formed on the joint flanges 24A and 24B of the B pillar apparel reinforcement 24. The increase in weight can be suppressed as compared with the configuration in which the plate thickness of the B pillar inner 22 or the like is increased.

  In the above embodiment, the convex portion 24E is curved in an arc shape toward the inner side in the vehicle width direction. However, the shape of the convex portion 24E is not limited to the arc shape, and is formed on the upper inner surface of the gap forming convex portion 22F. Other shapes such as a trapezoidal shape may be adopted.

  Although the present invention has been described in detail with reference to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, in each of the above-described embodiments, the lower part 24C of the B pillar apparel reinforcement 24 is arranged on the inner side in the vehicle width direction of the upper part 26C of the B pillar rear reinforcement 26. The upper part 26 </ b> C may be disposed on the inner side in the vehicle width direction of the lower part 24 </ b> C of the B pillar apparel reinforcement 24.

  Moreover, in each said embodiment, although the B pillar apparel reinforcement 24 and the B pillar lower reinforcement 26 are provided, a reinforcement member is not limited to 2 sheets up and down, and 1 sheet or 3 sheets or more may be sufficient .

  Moreover, the pillar reinforcement structure of this invention is applicable also to other pillars, such as C pillar other than B pillar.

FIG. 8 is an enlarged sectional view taken along the 1-1 section line in FIG. 7. It is sectional drawing corresponding to FIG. 1 which shows the deformation | transformation state of the pillar reinforcement structure of the motor vehicle in 1st Embodiment of this invention. FIG. 8 is an enlarged cross-sectional view taken along the line 3-3 in FIG. 7. It is sectional drawing corresponding to FIG. 3 which shows the deformation | transformation state of the pillar reinforcement structure of the motor vehicle in 1st Embodiment of this invention. It is the schematic side view seen from the vehicle width direction inner side which shows the pillar reinforcement structure of the motor vehicle in 1st Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic perspective view showing a B pillar inner of a pillar reinforcing structure for an automobile according to a first embodiment of the present invention as seen from the front side of the vehicle body diagonally inside. FIG. 7 is an enlarged cross-sectional view taken along a line 7-7 in FIG. 5. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view showing a vehicle body to which an automobile pillar reinforcement structure according to a first embodiment of the present invention is applied. It is sectional drawing corresponding to FIG. 1 of the pillar reinforcement structure of the motor vehicle in 2nd Embodiment of this invention. It is sectional drawing corresponding to FIG. 1 of the pillar reinforcement structure of the motor vehicle in 3rd Embodiment of this invention. It is the schematic perspective view seen from the vehicle body slanting inner side front which shows the B-pillar appellation reinforcement of the pillar reinforcement structure of the motor vehicle in 3rd Embodiment of this invention.

Explanation of symbols

12 Cymen outer 18 B pillar outer 20 B pillar 22 B pillar inner 22A Joint flange (joint)
22B Joint flange (joint)
22F Convex part for gap formation 24 B pillar apparel reinforcement (reinforcing member)
24A Joint flange (joint)
24B Joint flange (joint)
Lower part of 24C B-pillar appellation reinforcement Edge of 24D B-pillar appellation reinforcement (vertical end)
24E Convex part 26 B Pillar reinforcement 26A Joint flange (joint part)
26B Joint flange (joint)
Top of 26C B Pillar Insertion 40 Spacer

Claims (6)

A pillar outer that forms the outer side of the pillar in the vehicle width direction;
A reinforcing member that is disposed inside the pillar and has joints formed at both edges in the longitudinal direction of the vehicle body;
The joint that forms the inner side in the vehicle width direction of the pillar and that overlaps with the joint of the reinforcing member that is formed at both ends of the vehicle body in the longitudinal direction is between the vertical end of the joint of the reinforcing member. Pillar inner with a gap,
A pillar reinforcing structure characterized by comprising:   2. The pillar reinforcing structure according to claim 1, wherein the pillar inner portion has a gap in the entire longitudinal direction of the vehicle body with respect to an end portion in the vertical direction of the joint portion of the reinforcing member.   2. The pillar reinforcing structure according to claim 1, wherein the pillar inner has a gap closer to a central portion in a vehicle longitudinal direction of the pillar with respect to a vertical end portion of a joint portion of the reinforcing member.   The pillar reinforcement according to any one of claims 1 to 3, wherein the joint portion of the pillar inner is curved and formed in a direction away from the joint portion of the reinforcing member to form the gap. Construction.   The joint portion of the pillar inner is curved and formed in a direction away from the joint portion of the reinforcing member to form the gap, and a spacer is disposed in the gap. 4. The pillar reinforcing structure according to any one of 3 above.   The joint portion of the pillar inner is curved in a direction away from the joint portion of the reinforcing member to form the gap, and the joint portion of the reinforcing member is directed to the joint portion of the pillar inner in the gap. The pillar reinforcing structure according to any one of claims 1 to 3, further comprising a protruding convex portion.

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