| 摘要 |
An automatic door structure is provided to have fireproof and smoke-proof functions by installing many guide members and rollers to an opening and closing door, a fixed door and a frame of an automatic door system and removing a gap formed by opening or closing an automatic door completely. An automatic door structure having fireproof and smoke-proof functions for an automatic door system comprises an opening and closing door(30) installed to one side of the bottom of a frame and opened or closed selectively, a fixed door(40) fixed to the other side of the bottom of the frame and overlapped with the opening and closing door selectively, and a side frame(50) fixed to the spot adjacent to each edge of the opening and closing door and the fixed door to function as a doorframe, wherein a first guide member(42) and a second guide member(44) are formed to two sides of the bottom of the front of the fixed door to be projected forward, a first roller(32) and a second roller(34) are formed on two sides of the bottom of the rear of the opening and closing door, a contact guide member(36) is formed on one side of the bottom of the front of the opening and closing door at the appointed height to be projected forward, and a contact roller(56) is formed in the middle of the bottom where the opening and closing door is moved to correspond to the contact guide member selectively. |
