Speed reducing or increasing planetary gear apparatus
This patent describes a planetary gear apparatus. It includes: an external gear mounted on an input shaft with an eccentric member and a bearing fitted onto the eccentric member therebetween; an internal gear engaging with the external gear, the internal gear being coaxial with respect to the input shaft; an output shaft for outputting a reduced rotational force; and a drive for coupling the external gear and the output shaft, the planetary gear apparatus being adapted to transmit the rotational force of the input shaft to the output shaft after it has reduced the speed of the rotational force, or to transmit the rotational force of the output shaft to the input shaft after it has increased the speed of the rotational force by fixing the internal gear.
- Assignee:
- Sumitomo Heavy Industries, Ltd., Tokyo
- Patent Number(s):
- US 4843911
- Application Number:
- PPN: US 7-180518A
- OSTI ID:
- 5377973
- Resource Relation:
- Patent File Date: 12 Apr 1988
- Country of Publication:
- United States
- Language:
- English
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