Vernier drive mechanism

Details Vernier drive mechanism Vernier drive mechanism

1974-05-21

1976-04-20

Scott, Samuel

Machine element or mechanism

Shaft operators

Plural speed

74 10R, 74 1054, F16H 3518

Patent

active

039510018

ABSTRACT:
This invention relates to a vernier drive mechanism, in which a vernier shaft always being subjected to the elasticity of a coil spring is put into a hollow part of a main shaft in a freely rotatable manner, a housing is put outside the main shaft also in the freely rotatable manner, a part having a hexagonal section or a shape causing the similar effect is made at the center of the main shaft, holes open to the hollow part of the main shaft are made on the three planes placed radially at the same angle of the six peripheral planes, balls are put into the holes and are made to contact with a small diameter part of the vernier shaft and the inner surface of the housing by the elasticity of the spring so as to rotate planetarily by the rotation of the vernier shaft and to turn the main shaft at a speed slower than that of the vernier shaft.

REFERENCES:
patent: 2039622 (1936-05-01), Bennett
patent: 2869373 (1959-01-01), Erbe et al.
patent: 3188872 (1965-06-01), Weiner
patent: 3574285 (1971-04-01), Valdettaro

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