Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Casters – Leg elevators
Patent
1993-08-04
1994-11-22
Bradley, P. Austin
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Casters
Leg elevators
B60B 3306
Patent
active
053656350
ABSTRACT:
A retractable caster assembly includes a mounting unit and a foot unit. The mounting unit has a horizontal mounting plate and a hollow connector which projects downwardly from the mounting plate and which is formed with an outward stop projection and a slot immediately below the stop projection. The foot unit has a foot portion, a connecting shaft extending upwardly from the foot portion into an open lower end of the hollow connector, and a horizontal retaining plate extending from one side of the connecting shaft. The foot unit is mounted slidably to the hollow connector and is movable between a first position, wherein the retaining plate extends out of the slot of the hollow connector, and a second position, wherein the retaining plate is retracted into the hollow connector. A base plate is mounted pivotally to the mounting plate adjacent to the hollow connector and is movable between a released position, wherein the base plate is disposed away from the hollow connector, and a retained position, wherein the base plate has an edge portion retained between the stop projection and the retaining plate. A caster unit is mounted on the base plate and extends lower than the foot portion when the base plate is in the retained position. The caster unit is disposed at a level higher than the foot portion when the base plate is in the released position.
REFERENCES:
patent: 4097955 (1978-07-01), Foge et al.
patent: 4335896 (1982-06-01), Koffler et al.
patent: 4397062 (1983-08-01), Huang
patent: 4772035 (1988-09-01), Danial
patent: 4773123 (1988-09-01), Yu
patent: 5154265 (1992-10-01), Capistrant
patent: 5253389 (1993-10-01), Colin
IBM Technical Disclosure Bulletin vol. 26 No. 7A Dec. 1983.
Bradley P. Austin
Mah Chuck Y.
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