| 摘要 |
A curtain for a door is provided to reduce the inconvenience on installation and dismantlement by letting a user open and close a curtain freely and the inconvenience on entrance and exit of a door by winding or unwinding a curtain automatically. A curtain for a door comprises: a roll type curtain(1) composed of a case(11) fixed to one side of a door and provided with a housing space, a motor(12) placed in the housing space of the case and rotated forward and backward by control signals, a curtain bar(13) connected to a pivot of the motor, and a curtain(14) wound round the curtain bar; a curtain fixing member(2) provided with a fitting groove to couple with a fastening part formed on the end of the curtain and an electromagnet coupled into the fitting groove; guide rails(3,3') composed of an upper guide rail and a lower guide rail to prevent the curtain from be wrinkled by dead weight and to guide the fastening part to couple with the fitting groove of the curtain fixing member easily; and a control circuit composed of a key input unit for generating signals for opening and closing a door and a curtain, a motor driving unit for switching correspondingly to the signals for opening and closing a curtain, a sensor for sensing the location of the curtain wound and outputting signals accordingly, a sensor for sensing the closing state of the door and outputting signal accordingly, a microprocessor for outputting motor control signals to the motor driving unit to rotate a motor in one direction only or in the opposite direction and outputting motor stop signals to stop a motor if a curtain reaches at the preset location, and an opening button supporting user's operations from the inside and outputting signals for opening a curtain to the microprocessor. |
