Chain driving unit

Details Chain driving unit Chain driving unit

1992-11-30

1994-06-14

Watts, Douglas D.

Endless belt power transmission systems or components

Belt guide has surface in sliding contact with belt

74 8921, 474153, F16H 714

Patent

active

053205820

ABSTRACT:
An apparatus for driving a chain in which expansion and contraction of the chain due to an angular position of a sprocket is eliminated, the tensile stress imposed to the chain is reduced so that the chain travels smoothly. A guide cam is provided, which has a guide groove, one end of which is opened at a predetermined peripheral position of a sprocket where the rollers of the chain are released from the sprocket. The cam guides the rollers of the chain so that a winding angle of the chain around the sprocket is kept at a constant value and a constant traveling orbit is maintained irrespective to the angular direction of the sprocket.

REFERENCES:
patent: 4498890 (1985-02-01), Sutherland

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