Impact absorption structure of automobile

Abstract

The present invention provides an impact absorbing structure of an automobile capable of consistently ensuring the pedestrian protective performance at the time of collision. In an automobile, a cowl grille 15 extending in the vehicle width direction is split into a cowl grille upper portion 20 extending downward of a rear edge of a hood 5 from an upper side of a front edge of a wind shield 19, and a cowl grille fore portion 21 extending downwardly from a front edge of the cowl grille upper portion 20. A weakened potion 35 against the load from the top is formed in the cowl grille front portion 21.

Description

technical field [0001] The present invention relates to an automobile shock-absorbing structure excellent in pedestrian protection performance. Background technique [0002] As a front body structure of an automobile for the purpose of improving the pedestrian protection performance at the time of collision, Patent Document 1 proposes a front body structure of an automobile including a mudguard for separating an engine room and a vehicle compartment dash lower; the cowl front that extends from the upper end of the fender lower to above the front and supports the rear end of the engine hood; supports the front wind at a position further forward than the fender lower a cowl panel at the front end of the plate member; and a cowl grill, the rear end of which is supported by the cowl panel and the front end is supported by the upper front end of the cowl and contacts the seal member at the rear end of the hood, wherein , the hood front is constituted as follows: the upper end th...

AI Technical Summary

Problems solved by technology

[0009] However, the inventions described in Patent Documents 1 and 2 have problems such as that the energy absorption effect of the hood front resin portion and the hood grill upon collision depends on the material and thickness of the synthetic resin plates constituting them, and the longitudinal section. The shape and cross-sectional shape are subject to design freedom related to material selection, and if the thickness and cross-sectional shape change due to design changes, etc., the desired energy absorption effect cannot be obtained

However, the source of noise in the engine room is not only the engine, but also the noise from the road surface transmitted from the tire room via the front suspension, and the sound insulation structure described in Patent Document 1 cannot sufficiently absorb the noise from the tire room.

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