Brakes – To retard rolling of caster
Patent
1991-05-14
1993-08-17
Halvosa, George E. A.
Brakes
To retard rolling of caster
16 35R, 188 74, 280 33984, B60B 3300
Patent
active
052360660
ABSTRACT:
A wheel brake for shopping carts and other wheeled equipment is disclosed. Typically, shopping carts and other wheeled equipment have a yoke depending from a lower end of a leg support, the yoke including a pair of generally parallel downwardly extending arms. A wheel is rotatably mounted on an axle extending between these downwardly extending arms. In order to provide selective braking engagement of the wheel to immobilize the shopping cart or other wheeled equipment, a brake tongue is pivotally mounted at one end to the yoke above the wheel and extends across at least a part of the wheel. A foot pedal is pivotally mounted to the yoke in spaced relationship to the brake tongue for movement between engaged and released positions relative to the wheel. The foot pedal includes a depending brake element for engaging and depressing the brake tongue into selective braking engagement with the wheel when the foot pedal is moved into engaged position by a user. A spring biased camming structure operatively engages both the depending brake element and the brake tongue for maintaining the depending brake element in releasable locking engagement with the wheel through the brake tongue until the foot pedal is moved to a released position by a user. The present invention also includes a method of assembling a wheel brake to an existing yoke depending from a lower end of a supporting leg. Thus, the present invention contemplates adapting existing shopping carts or other wheeled equipment to include a wheel brake, as well as contemplates the use of the wheel brake as original equipment on new shopping carts or other wheeled equipment.
REFERENCES:
patent: D288285 (1987-02-01), Simmons
patent: 2138433 (1938-11-01), Sunden
patent: 2484094 (1949-10-01), Jackson
patent: 2915775 (1959-12-01), Skupas
patent: 3493085 (1970-02-01), Libhart
Kovac Michael
O'Neal Daniel M.
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