Variable ratio brake operating device

Details Variable ratio brake operating device Variable ratio brake operating device

1977-08-15

1979-04-17

Gerin, Leonard H.

Machine element or mechanism

Control lever and linkage systems

Variable output force

74518, G05G 104

Patent

active

041494334

ABSTRACT:
The invention provides a brake operating device wherein an operating lever pivoted on a frame transmits an applied force with a variable ratio through a roller and cam-lever mechanism to the brake linkage. A two-armed cam lever is pivoted on the frame and has one arm connected to the brake linkage and on its other arm there is provided a cam track upon which is guided a roller rotatably mounted on the operating lever. There is a recess in the cam lever in the vicinity of its pivot mount and this recess has an approximately semi-circular configuration to receive the roller when the operating lever is in its release position. The cam track on the cam lever is disposed between the pivot mount of the operating lever and the pivot mount of the roller on the operating lever.

REFERENCES:
patent: 3216276 (1965-11-01), Nagy
patent: 3719106 (1973-03-01), Schroter
patent: 3934490 (1976-01-01), Schroter
patent: 3938407 (1976-02-01), Nisbet
patent: 3939727 (1976-02-01), Asquith

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