Motorcycle chain drive

Details Motorcycle chain drive Motorcycle chain drive

1976-06-09

1977-07-12

Goodman, Philip

Motor vehicles

Steam traction engines

7424211B, 280284, B62M 902

Patent

active

040348210

ABSTRACT:
An improvement in a chain drive mechanism wherein a drive sprocket is connected to a spaced driven sprocket by an endless chain with the driven sprocket being pivoted on a swing arm about an axis intermediate the two sprockets. The improvement includes idler members on opposite sides of the pivot axis for engaging and "pinching" the chain flights together at points equidistant from the pivot axis. Through this arrangement, pivotal movement of the driven sprocket about the axis is resisted, since leverage is applied through the idler members and all moments operating about the pivot axis are greatly reduced and applied in a direction opposite to the pivotal movement of the driven sprocket. There is therefore a tendency for the swing arm to seek an equalized condition.

REFERENCES:
patent: 667594 (1901-02-01), Soucy, Jr.
patent: 3819002 (1974-06-01), Heathwaite, et al.
patent: 3834246 (1974-09-01), McGilp

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