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US 5,593,360 AGranted
Planetary gear system
AssigneeTsubakimoto Chain Co.
InventorsHiroki Ishida, Junichi Tani, Hiroshi Horie
Life of this patent
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Abstract
A planetary gear system has a driving sun gear, an internal gear fixed on a case concentrically with the sun gear, and a planetary carrier assembly having plural planetary gears pivotally supported on a carrier and engaged with the sun gear and the internal gear. The internal gear comprises a lamination of plural punched plates with internal teeth being in phase with each other.
Claims7
A planetary gear system comprising
- a case,
- a driving sun gear pivotally supported on the case,
- an internal gear fixed on the case concentrically with the sun gear, and
- a planetary carrier assembly having plural planetary gears pivotally supported on a carrier and engaged with the sun gear and the internal gear, wherein
- the internal gear comprises a lamination of plural ring-shaped punched plates with internal teeth formed by punching which are laminated so that the internal teeth of the punched plates are in phase with each other.
2 more elements
Dependencies are inferred from the claim text.