JP5949518B2 - Vehicle side body structure - Google Patents

Description

  According to the present invention, a hinge pillar having a closed cross section extending in a vertical direction at a side portion of a front portion of a vehicle body, a front end connected to a lower end of the hinge pillar, a side sill extending in a vehicle front-rear direction, and the hinge pillar disposed in front of the vehicle. The present invention relates to a side body structure of a vehicle including a front wheel.

  Conventionally, the front side frame extending in the vehicle front-rear direction at the left and right ends of the front portion of the vehicle and the bumper reinforcement that connects the front end portions of the left and right front side frames are not crushed, and the collision load is transferred from the vehicle side to the vehicle interior. The input collision mode is a problem.

  This collision mode is called a small overlap collision. For example, a small overlap collision occurs when one end of the front of the vehicle collides with an obstacle such as a pole that is not widened in the vehicle width direction.

  When the above-described small overlap collision occurs, the obstacle may cause the front wheel to move backward, causing the rear wheel to collide with the hinge pillar located on the side of the front part of the vehicle body, causing the hinge pillar to deform in the vehicle interior direction. .

By the way, in the following Patent Document 1, a lower end of a front pillar corresponding to a hinge pillar, a side sill, and a toe board (dash panel) are connected by one gusset. In Patent Document 1, by providing the gusset, side sill when a side collision of the vehicle, to the inside of the front pillar collapses, thereby preventing collapse or the like of and the toe board.

Patent Document 2 below discloses a structure in which a connecting portion between a front pillar corresponding to a hinge pillar and a side sill is reinforced by a reinforcing member having a substantially L shape in a side view. In Patent Document 2, by providing the reinforcing member, with the aim of absorbing efficiency of the impact energy formic during frontal collision of the vehicle, as a result, to prevent deformation of the connecting portion.

However, the following Patent Documents 1 and 2 are merely measures assuming a side collision and a frontal collision of the vehicle, and the arrangement positions of the gusset and the reinforcing member in the hinge pillar (front pillar) are as follows: What Re is also a connection portion between the side sill of the hinge pillar lower end, it is set in a position displaced downward from the height position where the load from the front wheel to be retracted is input. Therefore, in the prior arts disclosed in Patent Documents 1 and 2 below, it is impossible to suppress the deformation of the hinge pillar in the in-vehicle direction caused by the front wheels moving backward during a small overlap collision.

JP-A-8-26139 JP-A-7-89450

  The present invention relates to a side body of a vehicle capable of suppressing deformation of a hinge pillar in an in-vehicle direction caused by a front wheel retreating during a small overlap collision in which a collision load is input in the in-vehicle direction from the side of the vehicle. The purpose is to provide a structure.

A vehicle body structure according to the present invention includes a hinge pillar having a closed cross section extending in a vertical direction at a side portion of a front portion of a vehicle body, a gusset joined to an inner wall of the closed cross section, and a front end connected to a lower end of the hinge pillar. A side body structure of a vehicle including a side sill extending in a vehicle front-rear direction and a front wheel disposed in front of the hinge pillar, wherein the gusset is disposed vertically so as to face the front wheel. The front wheel has a surface portion and a horizontal surface portion extending substantially horizontally, and the center of the front wheel overlaps with the vertical surface portion and the vehicle vertical direction when viewed from the side of the vehicle. It has a slope portion inclined, in which high-strength portion has high strength with respect to the horizontal surface portion alone is provided.

According to this configuration, when the front wheel that retreats due to the small overlap collision of the vehicle collides with the hinge pillar, the load on the front wheel that retreats is received by the vertical surface portion, and then the lateral surface portion outside the vehicle is compressed and deformed from the inclined portion. while formic absorption can be derived to the outside of the vehicle direction a front wheel by the inclined portion. Thereby, it becomes possible to suppress a deformation | transformation to the vehicle interior direction of a hinge pillar.

  In an embodiment of the present invention, the inclined portion of the high-strength portion is formed along a line connecting the front end of the vehicle inner peripheral edge of the lateral surface portion and the vehicle outer end of the rear peripheral edge. is there.

According to this configuration, the vehicle exterior side from the inclined portion, the portion of the lateral surface portion that is not set to high-strength portion (non-high-strength portion), and the energy formic removals when compressive deformation by the front wheel to be retracted, the entire gusset The balance with the strength can be optimized. As a result, it is possible to reliably suppress the deformation of the rear inner peripheral edge portion of the hinge pillar, which is located on the innermost side of the vehicle, in the vehicle interior direction.

  In one embodiment of the present invention, the lateral surface portion is substantially rectangular, and the high-strength portion includes an inner peripheral edge portion of the horizontal surface portion, a rear peripheral edge portion, and a front end of the inner peripheral edge portion. It is a shape substantially along a triangle formed by a diagonal line connecting the vehicle outer side edge of the rear side periphery.

According to this configuration, other than the region to contribute to the energy formic absorption deformed by compression by the front wheel to be retracted, i.e., it is possible to reinforce the entire area to be secure strength by high-strength portion. As a result, the front wheels can be reliably guided to the outside of the vehicle.

  In one embodiment of the present invention, the high-strength portion is configured by joining a plate-like member to the lateral surface portion.

  According to this configuration, for example, the structure is simpler and easier to manufacture than the case where the high-strength portion is integrally formed by thickening a part of the lateral surface portion or setting the strength partially high. However, the effect which suppresses that a hinge pillar deform | transforms into a vehicle interior direction can be acquired.

In one embodiment of the present invention, the lateral surface portion has a bead extending in the vehicle width direction, and the plate-shaped member has a bead at a position overlapping the bead in a plan view . the front end of each bead of good beauty said plate-like member, and is formed so as to be inclined in the vehicle outer side as the rear side of the vehicle.

According to this configuration, while further improving the energy formic removals by each bead, in the induction of each bead to the front wheels of the vehicle rear and outside direction can contribute.

According to the present invention, when the front wheel retreating due to the small overlap collision of the vehicle collides with the hinge pillar, the load of the retreating front wheel is received by the vertical surface portion, and then the lateral surface portion outside the vehicle is compressed and deformed from the inclined portion. while formic absorption can be derived to the outside of the vehicle direction a front wheel by the inclined portion. Thereby, it becomes possible to suppress a deformation | transformation to the vehicle interior direction of a hinge pillar.

The side view which shows the side part vehicle body structure of the vehicle which concerns on embodiment of this invention. FIG. 2 is a cross-sectional view taken along line AA in FIG. 1. The principal part enlarged view of FIG. The principal part perspective view of the state which removed the outer plate and the hinge rain. Perspective view of the upper reinforcing member and plate-like member. Sectional drawing which shows the modification of a plate-shaped member.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side view showing a side body structure of a vehicle V according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line AA in FIG. In the figure, arrow F indicates the front of the vehicle, and arrow OUT indicates the outside in the vehicle width direction.
As shown in FIG. 1 and FIG. 2, hinge pillars 1 as vehicle body rigid members extending in the vertical direction are arranged at both left and right end portions of the vehicle body front portion of the vehicle V (however, only the left end portion is shown in the drawings). The lower end of the hinge pillar 1 is connected to the front end of a side sill 2 that extends rearward from the lower end of the hinge pillar 1 in the vehicle front-rear direction. The side sill 2 is a vehicle body rigid member that extends in the vehicle longitudinal direction.

  Further, a front pillar 3 serving as a vehicle body rigid member extending from the upper end of the hinge pillar 1 to the upper side and the rear side of the vehicle is connected to the upper portion of the hinge pillar 1 described above. In the vehicle V, the hinge pillar 1, the side sill 2, the front pillar 3, and the like form a boarding / alighting space 4 for a front seat occupant.

  As shown in FIG. 2, the vehicle V is provided with a dash panel (dash lower panel) 7 that partitions the engine room 5 and the vehicle compartment 6 in the vehicle front-rear direction and extends in the vehicle width direction.

  The dash panel 7 is formed by integrally or integrally forming an upper first slant portion 7A, a lower second slant portion 7B, and wheel arch portions 7C on both sides constituting a part of the wheel house. It is. The above-described hinge pillar 1 is connected to the left and right ends of the dash panel 7 in the vehicle width direction.

  Further, at the left and right ends of the front portion of the vehicle, as shown in FIG. 2, a pair of left and right front side frames 8 (only the left side is shown in the drawing) extend from the both sides in the vehicle width direction of the dash panel 1 toward the front of the vehicle. The front end of the bumper reinforcement 10 is connected to a bumper reinforcement 10 via a crash can 9 as an impact absorbing member. The bumper reinforcement 10 extends in the vehicle width direction and connects the front end portions of the pair of left and right front side frames 8.

Further, as shown in FIG. 1, a front wheel W is disposed outside the front side frame 8, and the front wheel W is disposed in front of the hinge pillar 1 as shown in FIGS. ing.

  As shown in FIGS. 1 to 4, the above-described hinge pillar 1 is formed in the vertical direction by joining the joining flange portions of the hinge pillar inner 11, the hinge rain 12, and the side frame outer 13 </ b> A with spot welding means. The hinge pillar inner member 11, the hinge rain 12, and the side frame outer 13 </ b> A are each formed in a hat shape in cross section in plan view.

  As shown in FIGS. 1 to 4, the above-described side sill 2 is formed by joining the joining flange portions of the side sill inner 21, the outer reinforcement 22, the side frame outer 13 </ b> B, and the like by spot welding means. It is a vehicle body rigid member having a side sill closed cross section formed so as to extend in the front-rear direction of the vehicle. The above-described side sill inner 21, outer reinforcement 22, side frame outer 13B, etc. are each formed in a cross-sectional hat shape in the rear view. Has been.

  Further, the hinge pillar inner 11 of the hinge pillar 1 and the side sill inner 21 of the side sill 2 are integrally formed. The side frame outer 13A that forms the outer plate of the hinge pillar 1 and the side frame outer 13B that forms the outer plate of the side sill 2 are both integrally formed.

  Further, the front pillar 3 is a vehicle body rigid member having a front pillar closed cross section formed by joining, by spot welding means, joint flange portions of a front pillar inner (not shown), a front pillar rain, and the side frame outer 13C. The front pillar inner, the front pillar rain, and the side frame outer 13C are each formed in a substantially hat shape in cross section when viewed from the front.

  The above-described side frame outer 13 </ b> C is integrally formed with the side frame outers 13 </ b> A and 13 </ b> B that form the outer plates of the hinge pillar 1 and the side sill 2.

  By the way, as shown in FIG. 4, the vehicle V according to the present embodiment is provided with a reinforcing member 15 that reinforces the lower portion of the above-described hinge pillar 1. The reinforcing member 15 includes an upper reinforcing member 16 shown in FIGS. 1 to 5 and a lower reinforcing member 17 shown in FIG.

As shown in FIG. 4, the upper reinforcing member 16 is connected by a plurality of fastening members 18 including bolts and nuts, and is disposed outside the vehicle width in the hinge pillar 1, and its lower portion is the outer reinforcement in the side sill 2. Ment 22. 2 and 3, the fastening member 18 is not shown for convenience.

  The lower reinforcing member 17 is connected to the outer reinforcement 22 in the side sill 2, and the lower reinforcing member 17 is formed in an L shape in front view as shown in FIG.

As shown in FIGS. 1 to 5, the upper reinforcing member 16 constituting the reinforcing member 15 includes a mounting piece 16 a fastened and fixed to the inner surface of the hinge pillar inner 11, and substantially horizontal from the lower end of the mounting piece 16 a to the vehicle outer side. and upper piece 16b as the horizontal surface portion extending, joining the exterior end of the upper piece 16b extends downward, the outer reinforcement 22 of the hinge reinforcement 12 and the side sill 2 constituting the inner wall of the hinge pillar closed cross section 14 The lower piece 16c, the bent pieces 16d and 16e formed integrally and bent downward from the front and rear end portions of the upper piece 16b, and the front and rear ends of the lower piece 16c are integrated toward the vehicle interior. Folding pieces 16f and 16g formed by bending are provided. Here, it forms so that the above-mentioned lower piece 16c may be arrange | positioned at the vehicle outer side in the hinge pillar 1. FIG.

Further, the lower piece 16c of the upper reinforcing member 16 and the front and rear of the bent piece 16f, 16g is joined to the hinge reinforcement 12, the lower piece 16c of the lower part of the upper reinforcement member 16, the side sill 2 outer reinforcement 22 It is joined to.

In addition, the bent piece 16f of the upper reinforcing member 16 is disposed so as to face the front wheel W as shown in FIGS. 1 and 4, and the bent piece 16f causes the vertical reinforcing member 16 to extend vertically. A surface portion is formed. As shown in FIG. 1, the center O of the front wheel W is disposed so as to overlap with the bent piece 16 f constituting the vertical surface portion in the vehicle vertical direction in a vehicle side view.

  The upper piece 16b has a substantially rectangular shape, and has a bead 16h that protrudes upward and extends in the vehicle width direction, as shown in FIGS. ing. And this bead 16h is formed so that the front end may follow the virtual line L1 which inclines to the vehicle outer side, as shown in FIG.

  Furthermore, as shown in FIGS. 1 to 5, a metal plate-like member 30 is joined to the upper piece 16 b, and by joining the plate-like member 30, the upper piece 16 b is more than the others. A high-strength portion having high strength is configured.

  Further, the plate-like member 30 has an inclined portion 30a that inclines toward the vehicle outer side toward the vehicle rear side, and this inclined portion 30a is inside the vehicle on the upper piece 16b having a substantially rectangular shape as shown in FIG. It is formed along a diagonal line L2 connecting the front end of the peripheral portion and the vehicle outer end of the rear peripheral portion. And the plate-shaped member 30 has comprised the shape substantially along the triangle formed by the vehicle interior peripheral part of the upper piece 16b, a back side peripheral part, and the diagonal L2 by planar view.

  3 to 5, the plate-like member 30 has a bead 30b at a position overlapping with the bead 16h of the upper piece 16b in a plan view. The bead 30b is a bead 16h of the upper piece 16b. Similarly to the above, it protrudes upward and extends in the vehicle width direction, and its front end is formed along the above-described virtual line L1.

Next, with reference to FIG. 2 and FIG. 3, description will be given of a case where the vehicle V according to the present embodiment has collided small overlap. FIG. 2 shows a case where the left side of the front of the vehicle collides with a pole P that is an obstacle that does not have a spread in the vehicle width direction, as an example of a small overlap collision of the vehicle V according to the present embodiment.

  In FIG. 2, the pole P collides with the vehicle V outside the left end of the bumper reinforcement 10, and in this case, the front side frame 8 and the bumper reinforcement 10 are not crushed, and the pole P As shown by a two-dot chain line in the figure, the vehicle approaches the vehicle compartment 6 while moving the front wheel W backward.

  When the front wheel W moves backward as described above, the front wheel W collides with the hinge pillar 1 located behind the vehicle as shown in FIGS. At this time, in the hinge pillar 1, the load of the retreating front wheel W is received by the bent piece 16 f disposed so as to face the front wheel W.

When the front wheel W is further retracted, a portion of the upper piece 16b outside the inclined portion 30a where the plate-like member 30 is not joined (not set to a high-strength portion) (hereinafter, this portion is referred to as a non-stretching portion). by high that the strength portion) 16i is compressed and deformed, absorbing some of the collision energy formic. As a result, the load input to the vehicle inner end portion (the portion surrounded by the broken line in FIGS. 2 and 3) X located on the innermost side of the hinge pillar 1 on the vehicle compartment 6 side is reduced. , Deformation of the part X is suppressed.

Here, when the front wheel W is further retracted and the non-high-strength portion 16i is further compressed and deformed, the front wheel W approaches the inclined portion 30a of the plate-like member 30, but the portion inside the vehicle relative to the inclined portion 30a. Is formed as a high-strength portion as a whole by joining the plate-like member 30 having a shape along a triangle. Therefore, the compression deformation of the upper piece 16b is caused by the non-high-strength portion 16i and the high-strength portion (the plate-like member 30). ) And the inclined portion 30a, which is the boundary with. Thus, the front wheels W is 2, as shown by the two-dot chain line in FIG. 3, the vehicle rear along the inclined portion 30a and is adapted to be guided to the outside of the vehicle direction.

At this time, the front wheels W are guided to the rear of the vehicle and outward from the vehicle mainly by the action of the inclined portion 30a, but the front ends of the beads 16h and 30b are along the virtual line L1 as described above. by being formed as each bead 16h, while further improving the energy formic removals by 30b, each bead 16h, rear of the vehicle 30b to front wheels W, and is possible to contribute to the induction of the vehicle-exterior-side it can.

In the present embodiment, as described above, the bent piece 16f disposed so as to face the front wheel W is disposed so as to overlap with the center of the front wheel W in the vehicle vertical direction when viewed from the side of the vehicle. In the piece 16b, by providing the plate-like member 30 having the inclined portion 30a inclined toward the vehicle outer side toward the rear side of the vehicle, the front wheel W retreating due to the small overlap collision of the vehicle V retreats when it collides with the hinge pillar 1. after receiving a load of the front wheel W by bent piece 16f, while upper piece 16b of the exterior from the inclined portion 30a (non-high-strength portion 16i) by compressive deformation and energy formic absorbed, by the inclined portion 30a of the front wheel W It can be guided to the outside of the vehicle. Thereby, it becomes possible to suppress the deformation of the hinge pillar 1 in the in-vehicle direction.

By the way, regarding the position of the inclined portion 30a, in consideration of the case where it is formed on the vehicle inner side than the diagonal line L2 connecting the front end of the vehicle inner periphery of the upper piece 16b and the vehicle outer end of the rear side periphery, non-high area of the strength portion 16i is wide, but the non-high-strength portion 16i by the front wheel W to retreat so that the energy formic removals when compressive deformation increases, on the other hand, the strength of the entire upper reinforcing member 16 As a result, the deformation of the part X in the in-vehicle direction may not be reliably suppressed.

On the other hand, considering the case where the inclined portion 30a than the diagonal L2 formed on the inner side, in this case, since the area of the non-high-strength portion 16i is narrowed, it becomes impossible to sufficiently secure the energy formic removals . For this reason, the load is likely to be transmitted to the part X via the plate-like member 30, and eventually, there is a possibility that deformation of the part X in the in-vehicle direction cannot be reliably suppressed.

Therefore, in the present embodiment, as described above, the inclined portion 30a is formed along the diagonal line L2. Thus, with the energy formic removals, it can optimize the balance between the strength of the entire upper reinforcement member 16, as a result, can be reliably prevented that the site X is deformed into the vehicle direction.

Moreover, the front wheel which reverse | retreats by making the plate-shaped member 30 as a high intensity | strength part into the shape substantially along the triangle formed by the vehicle inner periphery part of the upper piece 16b, a back side peripheral part, and the diagonal L2. except the region to contribute to the energy formic absorption deformed by compression (non-high-strength portion 16i) by W, i.e. the entire area to ensuring the strength it can be reinforced by the plate-like member 30. Thereby, the front wheel W can be reliably guided to the vehicle exterior direction.

  In addition, by joining the plate-like member 30 to the upper piece 16b to form a high-strength portion, for example, by making a part of the upper piece 16b thick or setting the strength partially high, Compared to the case where the strength portion is integrally formed, an effect of suppressing the deformation of the hinge pillar 1 in the in-vehicle direction can be obtained while the structure is simple and easy to manufacture.

Further, the upper piece 16b Oyo each bead 16h beauty plate-like member 30, the front end of the 30b, is formed so as to be inclined outward of the vehicle as the vehicle rear side, each bead 16h, further energy formic removals by 30b While improving, each bead 16h and 30b can also be contributed to the guidance of the front wheel W to the vehicle back direction and a vehicle outward direction.

  FIG. 6 shows a modification of the plate member, and the plate member 130 shown in FIG. 6A has a linear shape along the diagonal line L2. Further, the plate-like member 230 shown in FIG. 6 (b) has, in plan view, a front portion of the vehicle inner peripheral portion of the upper piece 16b, a vehicle outer portion of the rear peripheral portion, a diagonal line L2, and a diagonal line L2. It has a shape substantially along a trapezoid formed by substantially parallel side portions on the inner side of the vehicle.

  Even in the plate-like members 130 and 230 shown in FIG. 6, the front wheels W can be guided outwardly by the inclined portions 130 a and 230 a, as in the previous embodiment shown in FIGS. 1 to 5. Thus, the deformation of the hinge pillar 1 in the in-vehicle direction can be suppressed.

Further, the plate members 130, 230, bead 130b corresponding to the bead 30b, has 230b, the bead 130b, by 230b, while further improving the energy formic removals, each bead 130b, and 203b front wheel It is also possible to contribute to the guidance of W to the rear of the vehicle and to the outside of the vehicle. In FIG. 6, the same components as the previous embodiments shown in FIGS. 1 to 5, its description is omitted with the same sign.

  By the way, in each embodiment mentioned above, although the high intensity | strength part was provided by joining the plate-shaped members 30, 130, and 230 to the upper piece 16 of the upper side reinforcement member 16, it is not necessarily limited to this. Instead, as described above, the high-strength portion may be integrally formed by thickening a part of the upper piece 16b or setting the strength partially high.

In the previous embodiment shown in FIGS. 1 to 5, the case where the left side of the front of the vehicle collides with the pole P is described as an example in which the left side of the front of the vehicle collides with an obstacle that does not have a spread in the vehicle width direction. However, the obstacle is not necessarily limited to the pole P as long as the obstacle does not have a spread in the vehicle width direction.
For example, an obstacle that does not have a spread in the vehicle width direction may be used as a median strip of a motorway, an end of a guardrail, a block rod, or the like.

In correspondence between the configuration of the present invention and the above-described embodiment,
The gusset of the present invention corresponds to the upper reinforcing member 16,
The vertical surface portion corresponds to the bent piece 16f,
The lateral surface portion corresponds to the upper piece 16b,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

DESCRIPTION OF SYMBOLS 1 ... Hinge pillar 2 ... Side sill 14 ... Hinge pillar closed cross-section 16 ... Upper reinforcement member 16b ... Upper piece (horizontal surface part)
16f ... Folded piece (vertical surface)
16h ... beads 30, 130, 230 ... plate-like members 30a, 130a, 230a ... inclined portions 30b, 130b, 230b ... beads W ... front wheels

Claims (5)

A hinge pillar having a closed cross section extending in the vertical direction at the side of the front of the vehicle body;
A gusset joined to the inner wall of the closed section;
A side sill having a front end coupled to a lower end of the hinge pillar and extending in the vehicle front-rear direction;
A vehicle side body structure including a front wheel disposed in front of the hinge pillar vehicle,
A vertical surface portion arranged so that the gusset faces the front wheel;
And having a lateral surface portion extending substantially horizontally,
The center of the front wheel has an overlap in the vehicle vertical direction with the vertical surface portion in a vehicle side view,
Wherein the lateral surface portion, have a slope portion inclined in the vehicle outer side as the rear side of the vehicle, the side body structure of a vehicle high-strength portion has high strength with respect to the horizontal surface portion alone is provided. 2. The side body of the vehicle according to claim 1, wherein the inclined portion of the high-strength portion is formed along a line connecting the front end of the vehicle inner periphery of the lateral surface portion and the vehicle outer end of the rear periphery. Construction. The lateral surface portion has a substantially rectangular shape,
The high-strength portion is a triangle formed by a vehicle inner peripheral edge of the lateral surface portion, a rear-side peripheral edge, and a diagonal line connecting a front end of the vehicle inner peripheral edge and a vehicle outer end of the rear-side peripheral edge. The side body structure of a vehicle according to claim 1 or 2 , wherein the side body structure is substantially in line. The high strength portion is, side vehicle-body structure of a vehicle according to what Re one of claims 1-3, which is configured by joining the plate-like member to said horizontal surface. The lateral surface portion has a bead extending in the vehicle width direction,
The plate-like member has a bead at a position overlapping the bead in plan view,
The side body structure of the vehicle according to claim 4 , wherein the front end of each bead of the lateral surface portion and the plate-like member is formed so as to be inclined toward the vehicle outer side toward the vehicle rear side.

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