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Motor vehicle hood provided with a reinforced lining

A technology for motor vehicles and hoods, which is applied to vehicle components, vehicle safety arrangements, upper structures, etc. It can solve problems such as hood deformation, slow deceleration, and impact on hoods, and achieve uniform performance and reduce contact risks.

Active Publication Date: 2007-10-03
RENAULT SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However the corrugated shape of the liner causes the entire hood to deform under impact, causing adequate but slow deceleration
This very slow deceleration will affect the downward movement of the hood in such a way that there is a small but definite risk of contact between the liner and components in the engine compartment

Method used

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  • Motor vehicle hood provided with a reinforced lining
  • Motor vehicle hood provided with a reinforced lining
  • Motor vehicle hood provided with a reinforced lining

Examples

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Embodiment Construction

[0017] In the drawings, directions X, Y, Z respectively represent the longitudinal, transverse and vertical directions of the vehicle, the longitudinal direction being directed towards the rear of the vehicle. The orientation of the various elements of the hood is shown to correspond to the position of the hood when the hood is installed on the vehicle.

[0018] FIG. 1 shows a motor vehicle hood 1 made up of a skin 2 and a lining 3 , the skin 2 constituting the exterior of the hood. The liner 3 is assembled along its edge 4 to the inner surface of the skin in a known manner. According to the prior art, some filling connection points are also provided between the lining and the skin.

[0019] The liner 3 has the same dimensions as the hood and is generally in the shape of a flat sheet. The majority of the surface area of ​​the lining is occupied by a plurality of elongated notches 5, the length of which is substantially parallel to the longitudinal direction X of the hood.

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PUM

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Abstract

The invention concerns a motor vehicle hood (1) consisting of a skin (2) designed to be visible and of a lining (3) assembled edge-to-edge to the skin, the lining having elongated and substantially parallel alternating recesses (2) and raised parts (9), said recesses (5) whereof the concavity is oriented towards the skin, being distributed over substantially the entire surface of the hood. The invention is characterized in that each cavity consists of two substantially planar side walls each connected to a substantially planar base wall.

Description

technical field [0001] The invention relates to a motor vehicle hood with a reinforced lining. Background technique [0002] Motor vehicle hoods typically consist of a skin forming the visible side of the hood and a reinforcement or liner on the non-visible side of the hood. In order for the hood to maintain its geometric shape and have static stiffness, the liner and skin are bonded and / or hemmed around the hood edge, usually with a padding of low-strength mastic in some locations, providing The connection between the skin and the liner on the remaining hood surface. [0003] The hood, and more specifically the lining, are also designed to soften the impact when a pedestrian's head hits it. For this reason, the European Enhanced Vehicle Safety Committee (European Enhanced Vehicle Safety Committee) has limited the HIC value (Head Injury Criterion) for motor vehicle hoods, which stipulates that the value must be less than or equal to about 2000, must be less than or equal ...

Claims

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Application Information

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IPC IPC(8): B62D25/10B60R21/34
CPCB62D25/105B60R2021/343B62D25/10B62D25/12B62D21/152B60R21/38
Inventor Y·泰蒂Y·图尔比耶D·扎诺林
Owner RENAULT SA
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