Caster with braking mechanism
AssigneeHeinrich Bucher
InventorPeter Bucher
Life of this patent
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Abstract
A wheel is rotatably journalled in a supporting fork which is swivable about a substantially vertical axis. A disc is freely mounted over the wheel in a manner to straddle the fork substantially concentric with the vertical axis. The disc is provided with a brake shoe, centrally of its lower surface, in opposition to the surface of the wheel and the disc is movable, by a lever, operated by a pedal or manual assembly, into contact with the wheel.
Claims5
A brakeable caster for the chasis of a cart, chair or the like comprising a wheel member rotatably journalled in a supporting fork swivable about a substantially vertical axis, said supporting fork comprising a cross plate having a circular periphery forming the inner race of a radial/axial bearing having an outer race formed on said chasis, and a pair of depending arms to which said wheel member is journalled, said cross plate having an opening concentric with the vertical axis, a disc freely mounted over and straddling said supporting fork between said cross plate and said wheel member, said disc having a central hub freely extending through the central opening in said cross plate, spring means bearing on said hub and the surface of said cross plate, opposite said disc for normally biasing said disc out of contact with said wheel member, a brake shoe secured to said hub in opposition to said wheel member, said disc being provided with a peripheral flange offset downwardly from the central portion thereof, and a lever adapted to act on said flange for moving said disc with respect to the vertical axis to cause said brake shoe to engage said wheel member.
Dependencies are inferred from the claim text.