| 摘要 |
<p>An electromagnetic shock absorber having a shock absorber body (1) telescoping in response to an external input. The shock absorber body (1) comprises a ball screw mechanism (15) consisting of a ball nut (16) and a screw shaft (17) for converting a telescopic motion into a rotational motion, and power transmitting sections (13, 24) provided with a resilient body for transmitting the rotational motion of the ball screw mechanism (15) to the rotary shaft (11) of a motor (10) while shifting the transmission phase upon variation in the transmission torque of the rotational motion. The motor (10) generates an electromagnetic force resisting against a rotation entering the rotary shaft (11). An external vibration entering the shock absorber body (1) is thereby damped by the electromagnetic resisting force of the motor (10). The power transmitting section delaying the rotational phase relaxes the inertial moment of the rotor of the motor when an impact load enters the shock absorber body, and the absorber enhances riding comfortableness when it is applied to a vehicle as a shock absorber.</p> |
