Abstract: An automatic control device is provided for a gearbox of a motorized vehicle. The motorized vehicle gearbox includes a movable block movable between a forward driving position, a neutral position, and a reverse driving position. The automatic control device includes a motor, a transmission gear driven by the motor and including an eccentric axle provided thereon, a connecting rod having an end rotatably connected to the eccentric axle, an eccentric block including an end rotatably connected to the other end of the connecting rod, and an actuating device including a first end securely connected to the other end of the eccentric block and a second end securely engaged with the movable block to move therewith. When the motor is activated, the transmission gear is driven to move the movable block to one of the forward driving position, the neutral position, and the rearward driving position.

Abstract: An automatic control device is provided for a gearbox of a motorized vehicle. The motorized vehicle gearbox includes a movable block movable between a forward driving position, a neutral position, and a reverse driving position. The automatic control device includes a motor, a transmission gear driven by the motor and including an eccentric axle provided thereon, a connecting rod having an end rotatably connected to the eccentric axle, an eccentric block including an end rotatably connected to the other end of the connecting rod, and an actuating device including a first end securely connected to the other end of the eccentric block and a second end securely engaged with the movable block to move therewith. When the motor is activated, the transmission gear is driven to move the movable block to one of the forward driving position, the neutral position, and the rearward driving position.

Abstract: A gearbox for a motorcycle includes a casing containing a gear train therein. The gear train includes an input gear shaft rotatably mounted in the casing and operably connected to and thus driven by an engine of the motorcycle, and an output gear shaft rotatably mounted in the compartment and operably connected to one of at least two wheels of the motorcycle. A first gear and a second gear are rotatably mounted around the output gear shaft. A follower block is mounted around the output gear shaft and located between the first gear and the second gear. The follower block is slidable along a longitudinal axis of the output gear shaft for releasably engaging with one of the first gear and the second gear.

Abstract: A gearbox for a motorcycle includes a casing containing a gear train therein. The gear train includes an input gear shaft rotatably mounted in the casing and operably connected to and thus driven by an engine of the motorcycle, and an output gear shaft rotatably mounted in the compartment and operably connected to one of at least two wheels of the motorcycle. A first gear and a second gear are rotatably mounted around the output gear shaft. A follower block is mounted around the output gear shaft and located between the first gear and the second gear. The follower block is slidable along a longitudinal axis of the output gear shaft for releasably engaging with one of the first gear and the second gear.