Shift drum type speed change mechanism for motorcycles

Details Shift drum type speed change mechanism for motorcycles Shift drum type speed change mechanism for motorcycles

1982-05-10

1985-01-01

Braun, Leslie A.

Machine element or mechanism

Gearing

Interchangeably locked

74474, 74475, F16H 506, B60K 2002

Patent

active

044910312

ABSTRACT:
A change speed gear mechanism for a motorcycle is controlled by a shift drum mounted to turn. First and second cam plates are coaxially fixed to the shift drum and means are provided for turning the cam plates for moving the shift drum in either direction in equal angular increments between a high speed position and a low speed position, each angular increment being larger than the angular value calculated by dividing 360.degree. by the total number of gear ratios provided by the speed change gear mechanism.

REFERENCES:
patent: 3421384 (1969-01-01), Okamota et al.
patent: 4055093 (1977-10-01), Ross
patent: 4279174 (1981-07-01), Ross

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