Tuneable energy absorbing mounting structure for steering...

Details Tuneable energy absorbing mounting structure for steering... Tuneable energy absorbing mounting structure for steering...

2007-09-04

2007-09-04

Coker, Robert A. (Department: 3616)

Land vehicles

Wheeled

Running gear

C188S376000

Reexamination Certificate

active

11158406

ABSTRACT:
A steering column assembly (10) of the collapsible type includes a mounting plate (30) for rigid attachment to a vehicle body structure. The mounting plate (30) supports the steering column (12) during normal operation through interconnecting release capsules (24) which allow the steering column (12) to collapse, away from the rigidly attached mounting plate (30), during a frontal collision. An energy absorbing tear strip (44) in formed integrally in the mounting plate (30) and is connected via tab (43) to a fixed connection (42) which adjoins a portion of the column bracket (18). The column bracket (18) moves together with the steering column (12) during a collapse situation. The tear strip (44) simultaneously bends and tears in a peeling fashion as the steering column (12) collapses to provide energy absorption for the assembly (10). The transverse cross-sectional area of the tear strip (44) can be varied along its length to tune the energy absorption force exhibited by the tear strip (44) throughout the collapsing stroke.

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patent: 2247652 (1992-03-01), None

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