Land vehicles – Wheeled – Attachment
Patent
1975-02-06
1976-06-08
Wood, Jr., M. H.
Land vehicles
Wheeled
Attachment
105447, 182 91, 182 96, 296 62, B60W 302
Patent
active
039618099
ABSTRACT:
A tailgate-mounted safety step assembly for pickup trucks and the like is provided which includes a linkage assembly coupled with a step for permitting shifting of the latter between a storage position and a lowered horizontal use position, in conjunction with a selectively engageable clutch lock operable to securely lock the step in the use position thereof when a person mounts the step, while allowing the lowered step to shift fore-and-aft when not in use in order to accommodate any road obstructions which may be encountered. By virtue of the unique clutch lock employed, the step assembly hereof may be utilized without fear of instability or unsteadiness notwithstanding the fact that the lowered step is movable when struck by an obstruction in order to preclude damage to the overall assembly. In preferred forms, the assembly includes parallelogram linkage having a split shaft clutch lock secured to the step and telescoped over a transverse, axially rotatable pivot member of the linkage assembly, such that when a person mounts the step the clutch lock grippingly engages the pivot member to releasable hold the latter and thereby temporarily rigidify the entire step assembly to permit safe use thereof.
REFERENCES:
patent: 2575615 (1951-11-01), Crump
patent: 3853369 (1974-12-01), Holden
patent: 3865399 (1975-02-01), Way
patent: 3889997 (1975-06-01), Schoneck
Forman Michael J.
Wood, Jr. M. H.
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