Planetary gear transmission systems or components – Condition responsive control
Patent
1995-08-23
1998-01-27
Ta, Khoi Q.
Planetary gear transmission systems or components
Condition responsive control
475263, 475269, 475338, F16H 344
Patent
active
057117390
ABSTRACT:
A planetary gear transmission gear system comprises a main planetary gear train composed of a main sun gear, a main ring gear, and main planet gears. The main sun gear is driven by an input rotary shaft to rotate. A sub planetary gear train is included to have a sub sun gear, a sub ring gear, and sub planet gears, and has a different gear ratio from the main planetary gear train. The sub sun gear is connected to rotate together with the main sun gear. A common carrier supporting the main and sub planet gears is rotatable about a common center axis and is drivingly connected to rotate an output shaft. A lock mechanism releasably fixes the main ring gear in order to allow the main planet gears to rotate about the center axis as the main sun gear rotates with the main ring gear fixed. A one-way clutch is connected to permit the sub ring gear to rotate in a first direction and to prohibit the sub ring gear from rotating in a second direction opposite to the first direction. The first direction is selected to be a direction in which the sub ring gear is permitted to rotate while the carrier rotates with the main ring gear fixed by the lock mechanism such that the sub ring gear is locked in the second direction after the main ring gear is released, thereby permitting the carrier to continue rotating at a speed reduction ratio different than when the main ring gear is fixed.
REFERENCES:
patent: 3125901 (1964-03-01), Norton
patent: 3631741 (1972-01-01), Kelbel et al.
patent: 3904005 (1975-09-01), Husmann
patent: 3960035 (1976-06-01), Workman, Jr. et al.
patent: 4215593 (1980-08-01), Shono et al.
patent: 4255987 (1981-03-01), Ciolli
patent: 4364286 (1982-12-01), Ciolli
patent: 4691786 (1987-09-01), Fujita et al.
patent: 5171195 (1992-12-01), Funamoto
patent: 5279527 (1994-01-01), Crockett
patent: 5295925 (1994-03-01), Hirabayashi
patent: 5397282 (1995-03-01), Weidman
patent: 5409430 (1995-04-01), Hashimoto et al.
German Patent Office Action for German Patent Application No. 195 31 043.8 dated Dec. 20, 1996 with translation.
Hashimoto Koichi
Ishibashi Akihiro
Ishida Yosuke
Kishi Ichiro
Shimizu Hidenori
Kwon Peter T.
Matsushita Electric & Works Ltd.
Ta Khoi Q.
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