| 摘要 |
<p>A roller blind with an electronic pinch preventing part is provided to prevent damage or injury from pinch by monitoring operation parameter of an electric motor and shutting off current of the motor over the limited value. A roller blind system of a vehicle includes a winding shaft rotated and supported, a roller blind(21) fixed to the winding shaft, tension rods fastened to an edge of the roller blind far from the winding shaft, an electric motor moving the roller blind unidirectionally, a sensor detecting operation parameter of the electric motor, and a control circuit having input units placed in the sensor and containing control program monitoring operation parameter of the electric motor and cutting off current of the electric motor over the predetermined limited value. Operation parameter is current consumed by the electric motor, change of current consumed by the electric motor, RPM of the electric motor or change of RPM of the electric motor. The sensor is formed of a current sensor or an RPM sensor.</p> |
