Patent ID: 6457374
Filing Date: 2002-10-01
Classification: B62M,F16H,Y10T

Abstract:
A gearbox for a motorcycle with an engine and at least two wheels, the gearbox comprising:a) a casing (1) including a compartment (11); b) a gear train (2) including: an input gear means (21) including a gear shaft (211) rotatably mounted in the compartment (11) and operably connected to and thus driven by an engine of the motorcycle, and an output gear means (22) including a gear shaft (221) rotatably mounted in the compartment (11) and operably connected to one of at least two wheels of the motorcycle, a first gear (222) and a second gear (223) being rotatably mounted around the gear shaft (221) of the output gear means (22), a follower block (224) being mounted around the gear shaft (221) of the output gear means (22) and located between the first gear (222) and the second gear (223), the follower block (224) being slidable along a longitudinal axis of the gear shaft (221) of the output gear means (22) for releasably engaging with one of the first gear (222) and the second gear (223); c) a control device (30) including a gear lever (31) that is operably connected to move the follower block (224) between a first position and a second position; wherein when the follower block (224) is in the first position, the follower block (224) is engaged with the first gear (222) such that the gearbox is in a forward gear for moving the motorcycle forward; and when the follower block (224) is in the second position, the follower block (224) is engaged with the second gear (223) such that the gearbox is in a reverse gear for moving the motorcycle backward; d) a first transmission gear means (23) including a gear shaft (231) rotatably mounted in the compartment (11), a third gear (232), a fourth gear (233), and a fifth gear (234) being mounted on the gear shaft (231) of the first transmission gear means (23) to rotate therewith, the fourth gear (233) being meshed with the first gear (222), and e) a second transmission gear means (24) including a gear shaft (241) rotatably mounted in the compartment (11), a sixth gear (242) and a seventh gear (243) being mounted to the gear shaft (241) of the second transmission gear means (24) to rotate therewith, the sixth gear (242) being meshed with the fifth gear (234), the seventh gear (243) being meshed with the second gear (223); the gear shaft (211) of the input gear means (21) including an eighth gear (212) provided thereon to rotate therewith, the eighth gear (212) being meshed with the third gear (232).