Planetary gear transmission systems or components – Planet pinion is friction gear – Torque responsive means to increase contact pressure
Patent
1998-05-07
1999-08-03
Wright, Dirk
Planetary gear transmission systems or components
Planet pinion is friction gear
Torque responsive means to increase contact pressure
475334, 475183, 476 61, 476 65, E16H 1308
Patent
active
059317590
ABSTRACT:
A friction-roller speed changer has three intermediate rollers (12a, 12b, 12c). Two rollers (12a, 12b) of which act as a wedge roller and can be moved into the narrower area of an annular space (10) by the transmission of power, wherein during power transmission from the input side in the normal state to the output side. The other intermediate roller (12a or 12b), which does not act as the wedge roller, moves into the wider area of the annular space (10) against the elastic force of the spring (14) whereby transmission efficiency for bidirectional rotation is maintained while preventing backflow of power.
REFERENCES:
patent: 1093932 (1914-04-01), Inghram
patent: 3380312 (1968-04-01), Barske
patent: 3776051 (1973-12-01), Kraus
patent: 3848476 (1974-11-01), Kraus
patent: 3941004 (1976-03-01), Kraus
patent: 3945270 (1976-03-01), Nelson et al.
patent: 4408503 (1983-10-01), Kraus
patent: 4481842 (1984-11-01), Nelson
patent: 4491038 (1985-01-01), Kraus
patent: 4555963 (1985-12-01), Nelson
patent: 4648288 (1987-03-01), Kato et al.
patent: 4709589 (1987-12-01), Kraus
patent: 5037361 (1991-08-01), Takahashi
patent: 5385514 (1995-01-01), Dawe
patent: 5688201 (1997-11-01), Zhou
patent: 5851163 (1998-12-01), Kawase et al.
Machida Hisashi
Otaki Ryoichi
Sakai Koichi
Kwon Peter T.
NSK Ltd.
Wright Dirk
LandOfFree
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