Straddle-type four wheeled vehicle

Details Straddle-type four wheeled vehicle Straddle-type four wheeled vehicle

2007-09-04

2010-12-21

Estremsky, Sherry (Department: 3655)

Machine element or mechanism

Gearing

Interchangeably locked

Reexamination Certificate

active

07854178

ABSTRACT:
A straddle-type four wheeled vehicle according to the present invention includes: a gear-type transmission capable of switching forward/backward traveling gears; a change drum, which is disposed substantially in parallel to a crankshaft of an engine and is turned at every predetermined angle to thus change the gear of the gear-type transmission; and a reverse lock device. The reverse lock device has: a stopper rotated integrally with the change drum; a reverse lock pin disposed substantially perpendicularly to an axial direction of the change drum and capable of moving in a direction of a pin length between a lock position, at which the reverse lock pin is locked to the stopper so as to prevent the change drum from being rotated to a backward traveling position, and an unlock position, at which the reverse lock pin is unlocked from the stopper; and an unlocking transmission mechanism for moving the reverse lock pin to the unlock position.

REFERENCES:
patent: 4574652 (1986-03-01), Shichinohe et al.
patent: 4620453 (1986-11-01), Kumazawa
patent: 4624350 (1986-11-01), Akashi
patent: 4635506 (1987-01-01), Imaizumi et al.
patent: 4658661 (1987-04-01), Terashita
patent: 4754662 (1988-07-01), Misawa
patent: 4879919 (1989-11-01), Sekizaki
patent: 6487927 (2002-12-01), Sputhe
patent: 2004-161133 (2004-06-01), None

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