Patent ID: 6336884
Filing Date: 2002-01-08
Classification: F16G

Abstract:
A belt for a continuously variable transmission, comprising metal ring assemblies (31) each of which is comprised of a plurality of endless metal rings (33) laminated one on another, and a large number of metal elements (32) supported along said metal ring assemblies (31), said belt being wound around a drive pulley (6) and a driven pulley (11) to transmit a driving force,said metal element (32) comprising ring slots (35) into which said metal ring assemblies (31) are fitted, pulley abutment surfaces (37) provided radially inside said ring slots (35) to abut against said drive pulley (6) and said driven pulley (11), a rocking edge (40) which is provided at a radially inner end of a main surface (38) for transmitting an urging force between said metal elements (32) and which serves as a fulcrum for the pitching of said metal elements (32), characterized in that a relation, L/t&lE;FL/2FV is established, wherein FV represents a tangential friction force received by said pulley abutment surface (37) from said drive pulley (6) and said driven pulley (11); L represents a radial distance from a point (45) of action of said tangential friction force to the rocking edge (40) located radially outside said friction force-acting point (45); FL represents a radially inward load received by said metal element (32) from said metal ring assemblies (31); and t represents a thickness of said metal element (32).