SEMI SPHERICAL CONTINUOUSLY VARIABLE TRANSSMISION

摘要

A CVT(Continuously Variable Transmission) is disclosed, in which a structure is simple, and less volume and weight are obtained, and manufacturing does not cost a lot, and less impact and noise occur during a transmission, and a maintenance does not cost a lot, and a module type transmission can be manufactured. A semispherical unit is used in stead of at least two spherical units like in the conventional at, and an eccentric support unit having a roller which supports a pressing force of a semispherical unit is installed in an opposed contact point of a semispherical unit instead of a pressure plate, and the present invention can be applied to a bicycle as well as various driving means such as motorcycle, an automatic handcart, a spinning wheel or the like without a design change.