Cam operated locking device

Supports – Stand – Horizontally movable support surface

Patent

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Details

292 60, F16M 1300

Patent

active

046451609

ABSTRACT:
A cam operated locking device for selectively locking or releasing an isolator frame for a seat that is slidable longitudinally on a support. The seat includes insolator frame has a locking recess therein. The locking device includes a U-bar housing affixed to a bracket on the support. There is a lever rod rotatable and slidable within the U-bar housing that is adapted to engage the recess in said isolator frame for locking the seat with respect to the bracket. Cam means including at least one pair of cam surfaces are formed on the U-bar housing. The lever rod carries a pin, which extends transversely within the U-bar housing and cooperates with the cam means. Spring means are disposed about the lever rod for biasing the lever rod into the recess in the seat frame. A handle is secured to the lever rod for rotating same. When the lever rod is in a first position on the cam means, the spring means will bias the lever rod into engagement with the recess. When the lever rod is rotated to a second overcenter position, the lever rod will be moved and retained out of engagement with the recess.

REFERENCES:
patent: 824193 (1931-09-01), Bovington
patent: 969825 (1910-09-01), Wilshire
patent: 1684944 (1928-09-01), Chapman
patent: 1921224 (1933-08-01), Floraday
patent: 2066557 (1937-01-01), Cox
patent: 2154294 (1939-04-01), Whedon
patent: 3362738 (1968-01-01), Dygert et al.
patent: 3627253 (1971-12-01), Germala
patent: 3858834 (1975-01-01), Eimen
patent: 4113221 (1978-09-01), Wehner
patent: 4165854 (1979-08-01), Duly

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