Kawasaki Jukogyo Kabushiki Kaisha

Noboru Meguro

Kiyohito Takano

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.

Straddle-type four wheeled vehicle

An engine for a vehicle including a crankcase having a crank room and a transmission room partitioned from the crank room by a partition wall, the transmission room housing a gear transmission having a gear train for backward movement and reserving oil of the engine. The gear train has a reverse drive gear provided on an input shaft of the gear transmission, a reverse driven gear provided on an output shaft of the gear transmission, and a reverse idle gear provided on a reverse idle shaft so as to be coupled with the reserve drive gear and the reserve driven gear. The input shaft and the reverse idle shaft are arranged so as to be divided into the upper side and the lower side of a reference line connecting an axis of the crankshaft and an axis of the output shaft. The reverse idle gear is arranged in a space surrounded by the reverse drive gear, the reverse driven gear and the partition wall.

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Takasago, Japan

Noboru Meguro