Speed reduction gear

Details Speed reduction gear Speed reduction gear

1975-12-15

1977-06-28

Gerin, Leonard H.

Machine element or mechanism

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

Preselected indexed position

74413, F16H 106, F16H 120, F16H 128

Patent

active

040317811

ABSTRACT:
A speed reduction gear of the differential type comprises a stationary internal gear with teeth of circular convex profile and an external gear with teeth of circular concave profile, the meshing between the profiles occurring preferably in a "concave to convex" state and in which the meshing point moves reciprocally on the concave profile of the teeth of the external gear. In this speed reduction gear, noise is decreased in a large amount by supporting the teeth of the internal gear at their ends relieving intermediate portions of them.

REFERENCES:
patent: 3073184 (1963-01-01), Braren
patent: 3668947 (1972-06-01), Waldorff
patent: 3910733 (1975-10-01), Grove

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