FRICTION ROLLER TYPE TRANSMISSION

摘要

PROBLEM TO BE SOLVED: To ensure high transmission efficiency and to improve performance. SOLUTION: An abutting part between a first cylinder surface 22a formed on the outer peripheral surface of a central roller 4a and a third cylinder surface 18a formed on the outer peripheral surface of a wedge roller 11c forms an abutting part 26 on the inside diameter side. An abutting part between a second cylinder surface 17a formed on the inner peripheral surface of an outer wheel 15a and the third cylinder surface 18a forms an abutting part 27 on the outside diameter side. The traction factors of the abutting parts 26 and 27 parts on the inside diameter side and the outside diameter side areμ. A wedge angle by which biting the wedge roller 11c in the narrow part of an annular space 23a is caused isα. In this case, a relationship of (tan<-1>μ)/2<=α<=tan<-1>μis satisfied.