| 摘要 |
The electric motor is of the type in which the speed of rotation as a function of the resisting torque is different in one direction of rotation than in the other, and comprises a pair of brushes (B1, B2) placed between field poles (P1, P2) and cooperative with an armature structure consisting of a commutator (14) rigid with an armature support (12) through which the shaft of the motor extends and in which are formed slots in which are wound wires connecting a series of strips (1,2 . . . ) of which the commutator (14) is formed, wherein each plane (L) containing the geometric axis (XX) of the motor and passing through the middle of a strip (1,2 . . . 8) of the commutator (14) halfway between two consecutive slots (15) of the commutator is offset by a given angle beta relative to the corresponding plane (K) passing through two diametrically opposed slots (B,F) of the armature support (12) in the direction of rotation (R) of the motor employed for the rising of the driven element. |
