| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a double swinging rolling door which can open a door board by rotating the same through almost 90° forward and backward. <P>SOLUTION: The rolling door 1 has the door plate 20 opened/closed in a door frame 11, and an arm 30 which is turnable about an arm turning fulcrum A by a motor 40 arranged at a corner in the door frame. The door board 20 has vertically extending two swing shafts, and one of the swing shaft P1 is a rotary swing shaft turnable together with the turn of the arm 30 while and the other swing shaft P2 is a slidable swing shaft slidable along a door frame 11U. The slidable swing shaft P2 is energized so as to assume a door closing position by an energizing mechanism 90, and therefore the door board 20 can be rotatable almost 90° (85° or more) forward and backward. In this manner, the bidirectionally openable rolling door which has only a small unopened space defined by the door board, and can use almost the entire width of a door frontage, can be provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
