Caster locking mechanism and carriage

Details Caster locking mechanism and carriage Caster locking mechanism and carriage

1989-04-24

1990-05-08

Seidel, Richard K.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Casters

Locked

188 112, 296 20, 280 7911, B60B 3300

Patent

active

049225740

ABSTRACT:
A wheeled carriage has a chassis with a plurality of swivel casters, and a locking assembly actuated by a foot pedal located along the front of the carriage. Pushing down on the foot pedal rotates a cam that engages a cam follower on a "T" bar frame supporting two locking rings which respectively overlie two of the caster wheels to move the rings into a locking position in engagement with the wheels to lock the wheels and the casters in any position. The cam follower surface includes a ramp portion engageable by the cam for driving the rings to their locking position and a horizontal latch portion engageable by the cam in its "overcenter" position for holding the rings in their locking position. A lifter bar is engageable by the user's foot to rotate the cam back off the follower and permit the rings to resiliently return to their release position. The cam and follower surfaces are so arranged that a limited rotation of the cam through less than about 25 degrees is sufficient to move the assembly between its release and locking configurations so that the locking assembly can be used where only a few inches of clearance beneath the chassis is available.

REFERENCES:
patent: 1633638 (1927-06-01), Jarvis et al.
patent: 1785421 (1930-12-01), Nielsen
patent: 2147064 (1939-02-01), Schultz, Jr.
patent: 2905275 (1957-10-01), Kostolecki et al.
patent: 3286857 (1966-11-01), King, Jr. et al.
patent: 3304116 (1967-02-01), Stryker
patent: 3942608 (1976-03-01), Frank et al.
patent: 3997938 (1976-12-01), Pinaire et al.
patent: 4164355 (1979-08-01), Eaton et al.
patent: 4205413 (1980-06-01), Collignon et al.
patent: 4309791 (1982-01-01), Aulik
patent: 4439879 (1984-04-01), Werner
patent: 4706328 (1987-11-01), Broeske
patent: 4720893 (1988-01-01), Mellwig et al.

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