초록 ▼

A caster assembly of the type that accommodates swivelling movement of a caster wheel including a U-shaped horn that flanks the sides of the wheel and supports the wheel axle. A swivel plate is rotatably mounted on top of the horn and is adapted to be connected to the underside of the article to be

A caster assembly of the type that accommodates swivelling movement of a caster wheel including a U-shaped horn that flanks the sides of the wheel and supports the wheel axle. A swivel plate is rotatably mounted on top of the horn and is adapted to be connected to the underside of the article to be supported. This plate carries a kingpin that extends through the horn and has an annular swivel lock plate fixed to its lower end. A swivel lock assembly is provided for locking the caster selectively in one of four 90 degree positions and it is mounted on rearwardly projecting ears on the U-shaped horn. The swivel lock assembly includes a spring biased axially movable plunger mounted radially with respect to the swivel lock plate and it is selectively engageable with four ninety degree spaced recesses in the swivel lock plate. The plunger is deactivated manually by pulling a ring extending through the rear end of the plunger against the biasing force of a coil spring and rotating the ring 90 degrees and releasing it into holding recesses on a U-shaped bracket fixed to horn ears.

대표청구항 ▼

A caster assembly, comprising; a horn member, an axle mounted in said horn means, a wheel supported for rotation on said axle, a swivel plate mounted on said horn means for pivotal movement about an axis generally transverse to the axis of the axle, said swivel plate having at least one recess in th

A caster assembly, comprising; a horn member, an axle mounted in said horn means, a wheel supported for rotation on said axle, a swivel plate mounted on said horn means for pivotal movement about an axis generally transverse to the axis of the axle, said swivel plate having at least one recess in the periphery thereof, a swivel lock member mounted on the horn member for reciprocating movement, said swivel lock member including a plunger having a projection selectively engageable with the recess in the periphery of the swivel plate, an actuator for withdrawing the plunger from the swivel plate and holding it in an active position, the plunger being pivotally mounted in the horn member and axially movable from an active position in engagement with the swivel lock plate to an inactive position pivoted 90 degrees with respect to the active position thereof, a transverse actuator member carried by the outer end of the plunger, and a U-shaped holding bracket on the horn member having spaced recesses in the ends thereof for receiving the transverse member and holding the plunger in its inactive position.