A drive unit for driving a shutter door comprises a control unit, and a motor controlled by the control unit. The motor comprises an axle and the drive unit also comprises a roller barrel driven by the axle of the motor. The roller barrel is arranged to have a shutter door mounted on it so that the motor can extend and retract the shutter door by rotating the roller barrel. The drive unit also comprises a switch arranged to be activated when the roller barrel is prevented from rotating while being driven by the motor. The control unit is arranged to stop extending the roller door when the switch is activated.


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    Title :

    Drive units for driving shutter doors


    Publication date :

    2024-03-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English



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