Patent ID: 7125359
Filing Date: 2006-10-24
Classification: F16H

Abstract:
1. A continuously variable transmission device of the type having planetary members in rolling contact with radially inner and outer races each comprising axially spaced relatively axially movable parts, and control means for determining the axial separation of the parts of one of the two races, in which the planetary members are connected for planetary motion to a planet carrier by connection means which allows the radial position of the planetary members to vary in response to variation in the axial separation of the parts of the said one of the two races while maintaining the circumferential connection, which planetary members are compound bodies each comprising two roller elements, said two roller elements each having an outer surface of revolutions for engagement with respective parts of the two races, and being joined by an intermediate element which holds said two roller elements in a predetermined spaced relationship in which they are capable of rotating relative to each other, said connection means being associated with said intermediate element whereby to transmit forces between said roller elements and said planet carrier.