Drive sprocket wheel

Details Drive sprocket wheel Drive sprocket wheel

1979-12-05

1982-08-10

Herrmann, Allan D.

Endless belt power transmission systems or components

Positive drive pulley or guide roll

With particular belt

474206, F16H 706

Patent

active

043436145

ABSTRACT:
A drive sprocket wheel of the type having drive chain link receiving pockets formed between the sprocket teeth and a circumferential groove dividing each tooth into a pair of tooth sections with the outer tips at the flanks or sides thereof being cupped for the reception of the horizontal chain links, is improved by sloping the cupped outer tips toward the running direction of the chain. In the sloping direction, the outer portions of the flanks may be flat and are followed by concave surfaces. The sloping flanks of each pair of toothed sections establish theoretical points of contact with the rounded horizontal chain links during the drive operation, such points lying about midway between opposite sides of the sloping flanks.

REFERENCES:
patent: 649563 (1900-05-01), Willson
patent: 2477783 (1949-08-01), Britt
patent: 2662415 (1953-12-01), Shields
patent: 3266331 (1966-08-01), Burrows
patent: 4095478 (1978-06-01), Rynik
Fordern and Heben, 23(1973) No. 4, entitled "Chain Pulleys for Trouble-free Motion", pp. 197 to 200.

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