Variable-leverage brakes for bicycles

Details Variable-leverage brakes for bicycles Variable-leverage brakes for bicycles

1975-08-07

1977-03-29

Halvosa, George E. A.

Brakes

Vehicle

Velocipede

188 2D, 188 729, B62L 116

Patent

active

040144089

ABSTRACT:
Multi-stage engagement of a bicycle wheel rim is effected by force simultaneously applied to a slidable caliper and a pivoted caliper causing sequential displacement of the calipers. Displacement of the slidable caliper at a low leverage ratio is terminated by a locking action in response to initial brake contact to cause subsequent pivotal displacement of the pivoted caliper at a high leverage ratio for increased braking contact with the wheel rim.

REFERENCES:
patent: 3680663 (1972-08-01), Kine
patent: 3795290 (1974-03-01), Hori et al.
patent: 3870127 (1975-03-01), Wilson et al.

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