Anti-theft steering shaft lock

Details Anti-theft steering shaft lock Anti-theft steering shaft lock

1996-08-05

1998-02-17

Gall, Lloyd A.

Locks

Special application

For control and machine elements

70252, 70422, 74492, 180277, B60R 2502

Patent

active

057181322

ABSTRACT:
An anti-theft steering shaft lock for an energy-absorbing motor vehicle steering column having a linearly collapsible mast jacket includes a unitized construction consisting of a cylinder lock attached to an instrument panel of the motor vehicle remote from the mast jacket, a lateral housing between the cylinder lock and the mast jacket, a lock bolt in the lateral housing, rack and pinion gears which convert rotation of an element of the cylinder lock into linear translation of the lock bolt, and a frangible connection means at which an inboard part of the unitized construction adjacent the mast jacket separates from an outboard part in the direction of linear collapse of the mast jacket. The frangible connection means includes a pair of laterally aligned frangible joints between inboard and outboard segments of the lateral housing and between inboard and outboard segments of the lock bolt. The inboard part of the unitized construction constitutes a relatively small rigid appendage to the mast jacket so that the space behind the instrument panel dedicated to maintenance of a clear path for such rigid appendage is, likewise, relatively small.

REFERENCES:
patent: 3686906 (1972-08-01), Watkins et al.
patent: 4584857 (1986-04-01), Weber
patent: 4903511 (1990-02-01), Niedzielski et al.
patent: 4955454 (1990-09-01), Reinert et al.
patent: 4972692 (1990-11-01), Morikawa et al.
patent: 4987756 (1991-01-01), Fancher
patent: 5092147 (1992-03-01), Mochida et al.
patent: 5211042 (1993-05-01), Watanuki

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