Steering column assembly with improved energy absorption system
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United States of America Patent
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Jul 1, 2014
Grant Date -
Jun 5, 2014
app pub date -
Nov 30, 2012
filing date -
Nov 30, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A steering column assembly for a vehicle comprises a column jacket and an energy absorption system. The column jacket is configured to undergo a collapse event involving a translation of the column jacket along a longitudinal axis in response to application of a column compression force. The energy absorption system includes an anvil coupled to the vehicle and a strap coupled to the column jacket with the strap extending through the anvil such that the strap is drawn over the anvil in response to the collapse event. The strap is configured to cause: (a) a friction force to be created between the strap and the anvil; and (b) a deformation force to be created between the strap and the anvil. The strap is configured such that at least one of the friction force and the deformation force varies along the length of the strap.
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