JP4471299B2 - Auto body front structure - Google Patents

Description

  The present invention includes a coupling member that couples an apron member protruding from a front pillar and a radiator support, and the object that is flipped up when the automobile collides with a certain object ahead (front collision) is The present invention relates to a vehicle body front part structure for reducing the impact force applied to the object based on the collision when the vehicle body collides with the front part of the vehicle body from above.

  Conventionally, the above-mentioned automobile body front structure is disclosed in Patent Document 1 below. According to this publication, the front body structure of an automobile includes a front pillar that constitutes a middle portion in the longitudinal direction of the vehicle body, an apron member that protrudes forward from the front pillar, and a front end portion of the vehicle body. A radiator support, a coupling member in which one end is coupled to the protruding end of the apron member and the other end is coupled to the upper end of the radiator support, and a vehicle body that is disposed above the coupling member and is supported by the support. And a headlamp supported by the headlamp.

JP 2003-112658 A

  As described above, since the other end portion of the coupling member is coupled to the upper end of the radiator support, the upper end portion side of the radiator support is reinforced by the apron member via the coupling member.

  Therefore, when an object that is flipped up by a frontal collision of the automobile collides with the radiator support from above, plastic deformation on the upper end side of the radiator support is prevented by the reinforcement of the apron member. As a result, it may be difficult to effectively relieve the impact force applied to the object, for example, a person based on the collision.

  Further, as described above, since the other end of the coupling member is coupled to the upper end of the radiator support, the installation position of the coupling member tends to be high. On the other hand, there is a limit to increasing the installation position of the headlamp in order to keep the vehicle body in a predetermined shape. For this reason, the gap between the coupling member and the headlamp tends to be narrow in the vertical direction.

  Therefore, when the object bounced up as described above collides with the headlamp from above, and the support fixture is deformed and the headlamp moves downward, the headlamp is immediately Colliding with the coupling member tends to prevent further downward movement. As a result, it is likely to be more difficult to effectively relieve the impact force applied to the object based on the collision.

  The present invention has been made by paying attention to the above-described circumstances. The object of the present invention is to prevent an object that is thrown up by a frontal collision of a vehicle from colliding with the vehicle body from above. Based on this, the impact force applied to the object is more effectively reduced.

The invention according to claim 1 includes a front pillar 8 that constitutes a middle portion in the longitudinal direction of the vehicle body 2, an apron member 15 that protrudes forward from the front pillar 8, and a radiator support that constitutes a front end portion of the vehicle body 2. 16, one end 17 a is coupled to the protruding end of the apron member 15, and the other end 17 b is coupled to the radiator support 16. The support member 18 is disposed above the coupling member 17. In the front body structure of an automobile provided with a headlamp 19 supported by the vehicle body 2 by
The other end portion 17b of the coupling member 17 is coupled to the middle portion of the radiator support 16 in the vertical direction.

Further, a pair of right and left side members 6 extending in the longitudinal direction of the vehicle body 2, extends in the width direction of the vehicle body 2, and a bumper reinforcement member 24 which is bridged to each front end of the two side members 6, the side members The radiator support 16 is coupled to each front end portion of the vehicle 6 so that the coupling member 17 extends in the width direction of the vehicle body 2, and the bumper is disposed at a midway position in the longitudinal direction of the coupling member 17 in the width direction of the vehicle body 2. The end of the reinforcing member 24 in the longitudinal direction is positioned, and the connecting member 17 and the end of the bumper reinforcing member 24 in the longitudinal direction are arranged side by side .

  In this section, the reference numerals appended to the above terms are not to be construed as limiting the technical scope of the present invention to the section “Example” described later or the contents of the drawings.

  The effects of the present invention are as follows.

According to the first aspect of the present invention, there is provided a front pillar that constitutes a middle portion in the longitudinal direction of the vehicle body, an apron member that protrudes forward from the front pillar, a radiator support that constitutes a front end portion of the vehicle body, and one end portion An automobile comprising a coupling member coupled to the projecting end of the apron member and the other end coupled to the radiator support, and a headlamp disposed above the coupling member and supported by the vehicle body by a support. In the body front structure of
The other end of the coupling member is coupled to a midway portion in the vertical direction of the radiator support.

  For this reason, it is prevented that the upper end side of the radiator support is reinforced by the apron member via the coupling member.

  Therefore, when an object that is flipped up by a frontal collision of the automobile collides with the radiator support from above, the upper end side of the radiator support is not reinforced by the apron member as described above. The plastic force is smoothly deformed, and the impact force applied to the object based on the collision is more effectively mitigated.

  Further, as described above, since the other end portion of the coupling member is coupled to the middle portion of the radiator support, the installation position of the coupling member can be lowered as compared with the conventional technique coupled to the upper end of the radiator support. . For this reason, the clearance gap between the said coupling member and a headlamp can be enlarged.

  Therefore, when the object bounced up as described above collides with the headlamp from above, and the support fixture is deformed and the headlamp moves downward, the headlamp is immediately The collision with the coupling member is prevented from further downward movement. As a result, the support is more greatly plastically deformed, so that the impact force applied to the object based on the collision is more effectively mitigated.

  Furthermore, as described above, the space above the coupling member can be increased by the amount that the installation position of the coupling member can be lowered. Therefore, the use of this space makes it possible to more easily assemble the headlamp and perform maintenance and inspection work, and improve the degree of freedom in designing the shape of the headlamp.

A pair of left and right side members extending in the longitudinal direction of the vehicle body; and a bumper reinforcing member extending in the width direction of the vehicle body and installed on the front end portions of the side members. The radiator support is coupled, the coupling member extends in the width direction of the vehicle body, and the longitudinal end of the bumper reinforcing member is positioned at a midway position in the longitudinal direction of the coupling member in the width direction of the vehicle body. And the said connection member and the edge part of the longitudinal direction of the said bumper reinforcement member are arranged in parallel up and down .

  For this reason, the lower part of the radiator support, the coupling member, and the bumper reinforcing member are intensively arranged in the lower part of the front surface of the vehicle body, which is considered to have a high collision frequency when the automobile collides forward. That is, in the lower part of the front surface of the vehicle body, the arrangement density of the components of the vehicle body is high. Therefore, the impact force per unit area given to the object from the lower part based on the collision during the frontal collision of the automobile is suppressed to be small, and therefore the damage to the object due to the collision is suppressed to a small level.

  In the vehicle body front structure of the present invention, when an object bounced up by a frontal collision of a vehicle collides with the vehicle body from above, the impact force applied to the object based on the collision is more effectively applied. In order to realize the purpose of relaxing, the best mode for carrying out the present invention is as follows.

  That is, the front part of the vehicle body includes a front pillar that constitutes a middle part in the longitudinal direction of the vehicle body, an apron member that protrudes forward from the front pillar, a radiator support that constitutes a front end part of the vehicle body, and one end A coupling member that is coupled to the projecting end of the apron member and the other end is coupled to the radiator support, and a headlamp that is disposed above the coupling member and supported by the vehicle body by a support. ing. The other end of the coupling member is coupled to a midway portion in the vertical direction of the radiator support.

The longitudinal end of the bumper reinforcing member is positioned at a midway position in the longitudinal direction of the coupling member in the width direction of the vehicle body, and the longitudinal end of the coupling member and the bumper reinforcing member Are lined up and down.

  In order to explain the present invention in more detail, an embodiment thereof will be described with reference to the accompanying drawings.

  In the figure, reference numeral 1 denotes an automobile, and an arrow Fr indicates the front of the automobile 1 in the traveling direction. The automobile 1 includes a vehicle body 2 made of sheet metal and a wheel 3 suspended from the front portion of the vehicle body 2, and the front portion of the vehicle body 2 is supported on the traveling surface via the wheel 3. The vehicle body 2 is substantially symmetrical with respect to the vehicle body center 5 in the width direction.

  The vehicle body 2 constitutes a lower portion of the vehicle body 2, and includes a pair of left and right side members 6 extending in the longitudinal direction of the vehicle body 2, and a plurality of side members 6 extending in the width direction of the vehicle body 2. And a cross member 7.

  The vehicle body 2 constitutes a midway side portion of the vehicle body 2 in the longitudinal direction, and extends in the width direction of the vehicle body 2 with a pair of left and right front pillars 8 protruding upward from each side member 6 side. A front cowl 9 erected in the middle in the longitudinal direction of each of the left and right front pillars 8, a dash panel 10 extending downward from the front cowl 9 to the upper surface of each side member 6, and the dash panel 10 A floor panel 11 extending rearwardly along the upper surface of each side member 6 from the extended end edge, and the rear of the dash panel 10 and above the floor panel 11 is a vehicle compartment 12. .

  The vehicle body 2 is connected to a longitudinal middle portion of each front pillar 8 and constitutes an apron member 15 projecting forward from the middle portion and a front end portion of the vehicle body 2, and the both side members. The radiator support 16 is connected to the front end of the front end 6 and protrudes upward from the front end. The one end 17a is connected to the projecting end of the apron member 15, and the other end 17b is on the side of the radiator support 16. And a headlamp 19 disposed above the coupling member 17 and supported by the support 18 on the apron member 15 of the vehicle body 2 and the upper portion of the radiator support 16. . Although not shown in detail, the support 18 includes, for example, a support piece protruding from the vehicle body 2 and a fastener for fixing the headlamp 19 to the support piece.

  The vehicle body 2 includes a front fender apron 22 installed on the side member 6 and the apron member 15 so as to constitute each side portion of the vehicle body 2, and extends in the width direction of the vehicle body 2. And a hood 26 that covers the engine room 25 between the front fender aprons 22 so as to be openable and closable from above.

  A rear portion 29 of the apron member 15 extends substantially horizontally from the middle portion of the front pillar 8 toward the front, and a front portion 30 of the apron member 15 extends in an inclined direction from the front end of the rear portion 29 toward the front lower side. ing. The front end of the front portion 30 of the apron member 15 is located at substantially the same position as the radiator support 16 in the longitudinal direction of the vehicle body 2. Further, the longitudinal width dimension of each part in the longitudinal direction of the apron member 15 is gradually reduced toward the front, and the longitudinal width dimension of the front part 30 of the apron member 15 is made smaller than that of the rear part 29.

  The radiator support 16 is coupled to the pair of left and right longitudinal members 32 projecting upward from the front end portions of the side members 6 and the projecting end portions of the longitudinal members 32 extending in the width direction of the vehicle body 2. And a reinforcing member 34 for coupling the bumper reinforcing member 24 and the laterally facing member 33 to each other in the longitudinal direction. Each of the longitudinal member 32 and the lateral member 33 has a box-shaped closed cross section in each longitudinal section.

  A front end portion of the hood 26 at the vehicle body center 5 is located above the radiator support 16 (not shown). The front end of the hood 26 is detachably locked to the lateral member 33 of the radiator support 16 by a locking tool (not shown).

  As for the said coupling member 17, each part cross section of the longitudinal direction is made into the box-shaped closed cross section. The other end portion 17 b of the coupling member 17 is coupled to a substantially central portion that is a middle portion in the vertical direction (longitudinal direction) of the longitudinal member 32 of the radiator support 16. The coupling member 17 extends in the width direction of the vehicle body 2 and extends substantially in the horizontal direction.

  According to the above configuration, the other end portion 17 b of the coupling member 17 is coupled to the midway portion in the vertical direction of the radiator support 16.

  For this reason, it is prevented that the upper end side of the radiator support 16 is reinforced by the apron member 15 via the coupling member 17.

  Therefore, when the object 37 bounced up by the front impact of the automobile 1 collides with the radiator support 16 via the hood 26 from above, the upper end portion side of the radiator support 16 has the apron member as described above. Since the reinforcement by 15 is not performed, the plastic deformation is more smoothly performed, and the impact force applied to the vehicle body 2 and the object 37 based on the collision is more effectively reduced.

  Further, as described above, since the other end portion 17b of the coupling member 17 is coupled to the middle portion of the radiator support 16, the installation position of the coupling member 17 is more improved than the conventional technique coupled to the upper end of the radiator support 16. Can be lowered. For this reason, the gap 38 between the coupling member 17 and the headlamp 19 can be widened.

  Therefore, when the object 37 bounced up as described above collides with the headlamp 19 from above via the hood 26 and the support 18 is deformed and the headlamp 19 moves downward, the headlamp 19 Since the gap 38 is wide, it is prevented that it immediately collides with the coupling member 17 to prevent further downward movement. As a result, the support 18 is more greatly plastically deformed, so that the impact force applied to the vehicle body 2 and the object 37 based on the collision is further effectively mitigated.

  Further, as described above, since the installation position of the coupling member 17 can be lowered, the space above the coupling member 17 can be increased. Therefore, the use of this space makes it possible to more easily assemble the headlamp 19 and perform maintenance and inspection work, and improve the degree of freedom in designing the shape of the headlamp 19 in particular.

Further, as described above, the pair of left and right side members 6 extending in the longitudinal direction of the vehicle body 2 and the bumper reinforcing members 24 extending in the width direction of the vehicle body 2 and installed on the front end portions of the both side members 6 are provided. The radiator support 16 is coupled to each front end of the side member 6 so that the coupling member 17 extends in the width direction of the vehicle body 2, and the longitudinal direction of the coupling member 17 in the width direction of the vehicle body 2. The end of the bumper reinforcing member 24 in the longitudinal direction is positioned at a position, and the connecting member 17 and the end of the bumper reinforcing member 24 in the longitudinal direction are arranged side by side .

  For this reason, the lower part of the radiator support 16, the coupling member 17, and the bumper reinforcing member 24 are intensively arranged in the lower part of the front surface of the vehicle body 2, which is considered to have a high collision frequency when the automobile 1 collides forward. . That is, in the lower part of the front surface of the vehicle body 2, the arrangement density of the components of the vehicle body 2 is increased. Therefore, at the time of the frontal collision of the automobile 1, the impact force per unit area between the lower portion and the object 37 based on the collision is suppressed to be small, so that the vehicle body 2 and the object 37 based on the collision Each damage is suppressed to a small level.

  Although the above is based on the illustrated example, the headlamp 19 may be supported by the coupling member 17 by the support 18.

It is a partial front view of a motor vehicle. It is a partial side view of a motor vehicle. It is a partial top view of a motor vehicle.

DESCRIPTION OF SYMBOLS 1 Car 2 Car body 5 Car body center 6 Side member 8 Front pillar 15 Apron member 16 Radiator support 17 Coupling member 17a One end part 17b Other end part 18 Support tool 19 Head lamp 24 Bumper reinforcement member 26 Hood 29 Rear part 30 Front part 37 Object 38 Crevice

Claims (1)

A front pillar that constitutes a midway portion in the longitudinal direction of the vehicle body, an apron member that projects forward from the front pillar, a radiator support that constitutes a front end portion of the vehicle body, and one end portion that projects from the apron member A vehicle body front structure including a coupling member coupled to the radiator support and a headlamp disposed on the coupling member and supported by the vehicle body by a support member.
The other end of the coupling member is coupled to the middle part in the vertical direction of the radiator support ,
A pair of right and left side members extending in the longitudinal direction of the upper Symbol vehicle body, extends in the width direction of the vehicle body, and a bumper reinforcement members spanned front ends of the both side members, said each front end of the side member A radiator support is coupled, the coupling member extends in the width direction of the vehicle body, and the longitudinal end of the bumper reinforcing member is positioned at a midway position in the longitudinal direction of the coupling member in the vehicle width direction, and the coupling member and the vehicle body front structure of the automobile characterized in that the longitudinal end portions juxtaposed above and below the said bumper reinforcing member.

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