Planetary gear transmission systems or components – Nonplanetary variable speed or direction transmission... – Nonplanetary transmission is friction gearing
Reexamination Certificate
2005-03-15
2005-03-15
Bonck, Rodney H. (Department: 3681)
Planetary gear transmission systems or components
Nonplanetary variable speed or direction transmission...
Nonplanetary transmission is friction gearing
C475S208000, C475S211000, C475S212000, C475S217000, C475S218000
Reexamination Certificate
active
06866606
ABSTRACT:
A continuously variable transmission system designable compact in size and manufacturable at a reduced cost by reducing the number of component parts and securing a maximum transmission ratio width. A toroidal continuously variable transmission has an input member connected to an output shaft of a prime mover, and an output member for outputting rotation of the input member at a continuously variable transmission ratio. A planetary gear mechanism has a first element connected to the output member, a second element connected to drive wheels, and a third element. A first clutch establishes and releases connection between the first element and the second element. A first gear train and a second gear train having a larger gear ratio, are arranged between the output shaft and the third element in parallel. Second and third clutches establish and release respective connections of first and second gear trains.
REFERENCES:
patent: 6217473 (2001-04-01), Ueda et al.
patent: 6520884 (2003-02-01), Ooyama
patent: 6561941 (2003-05-01), Nakano et al.
patent: 6616564 (2003-09-01), Shibukawa
patent: 20030060318 (2003-03-01), Sumi
patent: 2100372 (1982-12-01), None
Bonck Rodney H.
Honda Giken Kogyo Kabushiki Kaisha
Le David D.
Westerman Hattori Daniels & Adrian LLP
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