| 摘要 |
A balcony door having an automatic opening and closing device is provided to let people come in and out a balcony easily by opening and closing a door window conveniently using an automatic opening and closing device and to prevent the transfer of the outside cold air and noise to the indoors by installing an insulation member and a connection pad between a window frame of a door window and vertical/horizontal window frames, thereby keeping the window frame contact with the vertical/horizontal window frames closely. A balcony door(100) comprises a door window(20) and an automatic opening and closing device(110). The door window is attached with a window frame(30) and coupled to be slidable in a vertical window frame(40) and a horizontal window frame installed to a wall(F) to open and close a window frame selectively. The automatic opening and closing device comprises a main body panel(120) opened downward, provided with a space(121) and installed to the upper part of the wall where the vertical and horizontal window frames are installed, a driving motor(130) installed to the inside of the main body panel and connected with a switch(131) operated to generate forward or backward rotary force to open or close the door window, a driving pulley(140) installed to the adjacent side of the driving motor and rotated by supplying with the rotary force of the driving motor, a driven pulley(150) connected with the driving pulley by a belt(B) and rotated by supplying with the rotary force of the driving pulley through the belt, first and second belt connectors(160a,160b) connected to the belt at the different height between the driving pulley and the driven pulley and moving in the opposite horizontal direction according to the moving direction of the belt, a first and second door hangers(170a,170b) connected to the first and second belt connectors and connected to the door windows to move the door windows in the horizontal direction, and an insulation member and a connection pad installed between the window frame of the door window and the vertical/horizontal window frames to keep indoors warm and to cut off the outside noise. |
