Patent ID: 9031464
Filing Date: 2015-05-12
Classification: F16D,G03G

Abstract:
1. A drive transmission device comprising: a first coupling member configured to be coupled to a drive shaft to be rotatable integrally with the drive shaft, and including a first contact surface; a second coupling member configured to be coupled to a driven shaft to be rotatable integrally with the driven shaft, and including a second contact surface; and an intermediate coupler disposed between the first and second coupling members, wherein the intermediate coupler includes further wherein the first contact surface of the first coupling member and the first intermediate contact surface of the intermediate coupler are formed point-symmetrically with respect to a substantial center of the first rolling member, and the second contact surface of the second coupling member and the second intermediate contact surface of the intermediate coupler are formed point-symmetrically with respect to a substantial center of the second rolling member, wherein each of the first and second rolling members is a sphere.