Brakes – Wheel – Axially movable brake element or housing therefor
Patent
1984-06-04
1986-08-19
Stoner, Jr., Bruce H.
Brakes
Wheel
Axially movable brake element or housing therefor
F16D 5518
Patent
active
046064370
ABSTRACT:
A disc brake with caliper mounted brake shoes and including the negative feedback of the brake shoe friction forces to oppose the applied hydraulic brake actuating force for the purpose of reducing variations in brake torque due to random variations in the coefficient of friction between brake shoes and brake disc. The brake shoe friction force feedback is accomplished by means of a fulcrumed lever at each shoe, and with the hydraulic piston actuating force applied to the shoe and lever assembly through a ball bearing mounted on the piston that permits the entire sliding friction force of the brake shoe to be converted, without diminution to a force acting in a direction opposite the applied brake actuating hydraulic force. Feedback embodiments are shown both for the rigidly mounted brake caliper with two opposed actuating pistons, and for the sliding or floating brake caliper with a single actuating piston and an opposed caliper reaction force. These feedback embodiments automatically permit negative feedback for both directions of wheel and disc rotation.
REFERENCES:
patent: 2686576 (1954-08-01), Bachman et al.
patent: 2942697 (1960-06-01), Polanin
patent: 3371750 (1968-03-01), Schutte et al.
patent: 3664468 (1972-05-01), Oka
patent: 3734248 (1973-05-01), Fay
patent: 3869024 (1975-03-01), Hauth et al.
patent: 3900083 (1975-08-01), Hauth
patent: 4050548 (1977-09-01), Margetts
patent: 4454932 (1984-06-01), Emilsson et al.
Oberleitner Robert
Ruano William J.
Stoner Jr. Bruce H.
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