Change speed transmission for motorcycles

Details Change speed transmission for motorcycles Change speed transmission for motorcycles

1982-02-08

1984-06-26

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

743375, 74474, F16H 5706

Patent

active

044558848

ABSTRACT:
A change speed transmission device using gears employs a shift drum mounted parallel to the driving and driven shafts. The shift drum is turned one-quarter revolution at a time to cause a shifting mechanism to produce a low speed drive, and an intermediate speed drive, and a high speed drive between the shafts, and then back to neutral. A pivoted pawl engages an abutment on the shaft drum to limit turning movement of the drum. An element frictionally engages a member fixed to rotate with the driven shaft and serves to bias the pawl to engage the abutment so that the shift drum is prevented from turning directly from a high speed shift position to a low speed shift position.

REFERENCES:
patent: 3421384 (1969-01-01), Okamota et al.
patent: 3894443 (1975-07-01), Beig et al.

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