Brake operating device for a bicycle

Details Brake operating device for a bicycle Brake operating device for a bicycle

1984-01-03

1985-10-01

Cohan, Alan

Machine element or mechanism

Control lever and linkage systems

Multiple controlling elements for single controlled element

74489, B62K 2306, B62L 302

Patent

active

045438471

ABSTRACT:
A brake operating device for a bicycle is provided with a main lever, a lever shaft to support the main lever, a pivot shaft screwing with an axial end of the lever shaft, and an auxiliary lever supported to the pivot shaft. A locking unit is provided for preventing looseness of the pivot shaft with respect to the lever shaft. The locking means is provided with a coiled spring having a coil portion wound onto the outer periphery of a stem of the pivot shaft and a retaining end in continuation of the coil portion, and a retaining portion receiving therein the retaining end of coiled spring. When the pivot shaft is intended to unscrew, the coil portion of the coiled spring contracts in diameter to impede the rotation of the pivot shaft.

REFERENCES:
patent: 3403577 (1968-10-01), Ozaki
patent: 3693469 (1972-09-01), Ozaki
patent: 3776061 (1973-12-01), Yoshigai
patent: 3977270 (1976-08-01), Cristie
patent: 4196643 (1980-04-01), Nagano
patent: 4259879 (1981-04-01), Watarai
patent: 4263818 (1981-04-01), Ozaki
patent: 4270481 (1981-06-01), Watarai
patent: 4304145 (1981-12-01), Shimano
patent: 4352303 (1982-10-01), Christner
patent: 4459871 (1984-07-01), Shimano

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