摘要 |
PURPOSE:To prevent electro-magnetic clutches from turning together by coupling turn-stopper arms, provided on clutches, with each other. CONSTITUTION:Electro-magnetic clutches Cl1, Cl2 transmit the torque through armature hubs 13, 14, respectively, wherein transmission to rotary shaft 1 is in connection only when current supply to a coil 15 energizes a field 16 to allow an armature 14 to be attracted by a facing 17. Turn-stopper arms A1, A2 are fixed to the field 16 of these electro-magnetic clutches Cl1, Cl2, respectively, in such an arrangement that they can be fitted with each other. Accordingly turning together of two or more clutches can be prevented without requiring increase in the number of parts used. |