| 摘要 |
PURPOSE:To aim at a decrease in the internal stress and abrasion as well as prevention of vibrations of an elastic member in time of setting an angle of deflection, by setting up the plural number of elastic members or plurally divided elastic members that are disposed in the direction of a rotary shaft, between each of coupling twins attached to a pair of rotary shafts. CONSTITUTION:Turning torque of a rotary shaft 11 is transmitted to another rotary shaft 10 via a coupling twin 13, engagement claws 20, elastic members 17 and 18, linkage projections 16 and a coupling twin 12. In the case where rotary shafts 10 and 11 are deflected with a deflection angle value alpha, since the elastic members 17 and 18 are in the state of being divided into two parts in the axial direction through grooves 17b and 18b, internal stress is theoretically decreased to about one fourth with the monolithic construction whereby abrasion of each elastic member is thus lessened. Simultaneously vibrations in operation is as well decreased. With this constitution, the prolongation of service life and prevention against vibrations in every elastic member can be much expected. |
