Retractable automotive front end with wedge locking members

Details Retractable automotive front end with wedge locking members Retractable automotive front end with wedge locking members

2006-08-22

2008-03-25

Pedder, Dennis H. (Department: 3612)

Vehicle fenders

Buffer or bumper type

Shiftable between operative and inoperative positions other...

Reexamination Certificate

active

07347465

ABSTRACT:
An extendible rail and bumper apparatus is mountable within the base frame lower rails of an automotive frame to provide an improved crash force absorbing bumper apparatus for deployment on either the front or rear bumpers of an automobile. The extendible rail member is mounted for telescopic movement through slidable guide members. A front plate is formed with wedge members positioned next to the extendible rail member. The actuation mechanism includes an electric motor that rotates a threaded rod having a conical member mounted thereon for translational movement thereon. The conical member engages a pair of outwardly projectable tabs that are driven outwardly into engagement with the wedge members when the extendible rail is fully extended. If required to absorb impact energy, the outwardly projected tabs push the wedge members into engagement with the front plate to transfer the energy into the base frame rail apparatus of the vehicle.

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patent: 6976565 (2005-12-01), Meernik
patent: 6976718 (2005-12-01), Nakanishi
patent: 2608536 (1988-06-01), None

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