Eccentric swing gear transmission

Details Eccentric swing gear transmission Eccentric swing gear transmission

1985-09-18

1987-07-14

Herrmann, Allan D.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74804, F16H 128

Patent

active

046794654

ABSTRACT:
A transmission which comprises eccentric swing gears composed of a speed change internal gear and a speed change external gear each having a pressure angle of a tooth form within 30.degree. to 45.degree. and an addendum h satisfying the relation of m/2>h>0 (m=module), the speed change external gear engaging with the speed change internal gear therein, and coupling gears composed of a coupling internal gear having a trapezoidal or a substantially trapezoidal tooth form and a coupling external gear similarly having a trapezoidal or a substantially trapezoidal tooth form and having the same number of teeth as the coupling internal gear, the coupling external gear engaging with the coupling internal gear therein, the tooth forms of the coupling internal and external gears being molded so that the following relation may be satisfied between .theta..sub.1 and .theta..sub.2 :

REFERENCES:
patent: 158035 (1874-12-01), Cliff
patent: 1192627 (1916-07-01), Hatlee
patent: 2250259 (1941-07-01), Foote
patent: 3955445 (1976-05-01), Osterwalder
patent: 4452102 (1984-06-01), Shaffer

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