Vehicle body foreside structure

Abstract

Provided is a vehicle body front structure capable of suppressing cabin deformation when the vehicle makes head-on collision while the weight of the vehicle body is suppressed. The vehicle body front structure is equipped with a front side member whose longitudinal direction stretches fore and aft of the vehicle and with the front end coupled with a bumper reinforcement, a floor under reinforcement with its front end coupled with the tail of the front side member and supporting the load input to the front side member from the bumper reinforcement, a front pillar reinforcement with its rear top coupled with the roof structure of the body and reinforcing the front pillar upper, and a coupling member to couple the tail of the front side member with the front bottom of the front pillar reinforcement and transmitting part of the load input to the front side member from the bumper reinforcement to the front pillar.

Description

Technical field [0001] The present invention relates to a front structure of a vehicle body for absorbing the impact of a frontal collision of a vehicle. Background technique [0002] In order to effectively absorb the impact energy of the frontal impact of the vehicle by the front side members, it is known to provide a technology with a first reinforcement member and a second reinforcement member (for example, as the Japanese Patent Publication No. 4-262975), the first reinforcement The component transmits the load acting on the front bumper to the fairing box through the upper edge of the hood plate, and the second reinforcing member transmits the load acting on the fairing box to the front side member as a forward rebound force. In the technology described in this publication, in order to transmit the repulsive force to the front side members, in addition to the first and second reinforcement members, the beam of the engine cover plate or the brace arm of the fairing box is al...

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art as described above, a force clamped from front to rear acts on the front side sill to sufficiently deform the front side sill to absorb the impact energy (moderate the impact load). The load acting on the body (the load supported by the body) is not relieved

For this reason, the reinforcement of the load transmission part and load support part of the above-mentioned vehicle body is indispensable, and it is difficult to reduce the weight of the vehicle body.

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