Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1988-02-29
1990-04-17
Marmor, Charles A.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
180292, 180312, B62M 2702
Patent
active
049172077
ABSTRACT:
An improved drive unit and suspension arrangement therefor for a small snowmobile having an open tubular frame. The drive unit includes an internal combustion engine and a pulley type transmission. The pulley type transmission is supported within a transmission casing and is affixed to the frame for rigidifying the frame. The suspension permits more vertical compliance than fore and aft compliance for vibration dampening without adversely effecting the rigidity.
REFERENCES:
patent: 3673884 (1972-07-01), Southiere
patent: 3773126 (1973-11-01), Irvine
patent: 3821994 (1974-07-01), Bergius et al.
patent: 3877535 (1975-04-01), Gorski
patent: 3887023 (1975-06-01), Henning
patent: 4023635 (1977-05-01), Teal
Isobe Tsuneo
Nakanosono Haruhiko
Sugita Masanori
Yasui Toshihiro
Beutler Ernest A.
Culbreth Eric
Marmor Charles A.
Yamaha Hatsudoki Kabushiki Kaisha
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