V-belt type continuously variable transmission
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorTaisuke Morita
Life of this patent
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Abstract
A V-belt type continuously variable transmission includes a drive pulley assembly provided on a drive shaft, a driven pulley assembly provided on a driven shaft, a V-belt looped over both the pulley assemblies, and a transmission case assembly housing both the pulley assemblies and the V-belt. One end of the drive shaft in the shaft direction is coupled to an output side rotation member of a centrifugal clutch, and the other end of the drive shaft is rotatably supported on a boss portion formed in the transmission case assembly.
Claims5
A V-belt type continuously variable transmission attached to a crankshaft of an engine via a centrifugal clutch, comprising:
- a drive pulley assembly provided on a drive shaft;
- a driven pulley assembly provided on a driven shaft;
- a V-belt looped over both the drive pulley assembly and the driven pulley assembly;
- and
- a transmission case assembly housing the drive pulley assembly, the driven pulley assembly, and the V-belt, wherein:
- one end of the drive shaft in the shaft direction is coupled to an output side clutch housing of the centrifugal clutch;
- the other end of the drive shaft is rotatably supported on a boss portion formed in the transmission case assembly;
- the transmission case assembly includes a transmission case body fixed to or integrally formed in the crankcase of the engine, and a transmission cover made of aluminum or an aluminum alloy;
- the transmission cover is attached to the transmission case body;
- the boss portion is formed in the transmission cover;
- a plurality of reinforcing-ribs are formed in the transmission cover so as to extend radially from a center of the boss portion;
- and
- a plurality of rear reinforcing-ribs are formed in a rear half part of the transmission cover so as to extend in a substantially up and down direction.
Dependencies are inferred from the claim text.