| 摘要 |
PROBLEM TO BE SOLVED: To provide a door opening/closing apparatus which has doors thereof vertically moved to be opened/closed at an upper portion of an opening, dispenses with installation of a door storage case, allows arbitrary setting of the height of the doors and the number of the same, and exhibits neat and simple design. SOLUTION: The door opening/closing apparatus is formed of the plurality of doors 2 arranged in an opening side by side in the vertical direction, guide rails arranged on both right and left sides of the opening, for guiding the doors 2 while maintaining the doors 2 in a drooping state, a lifting means for vertically lifting/lowering the doors 2 in the drooping state along the guide rails, and a rotating means for rotatively opening the doors which have reached the upper portion of the opening by the lifting operation of the lifting means, in a manner protruding the doors frontward F in sequence beginning from the upper one. Each door 2 has a door shaft 8 attached to an upper edge of a door plate 2a via a door frame 15 and a slip-out preventive fixture 17. The door frame 15 has a door plate mounting slot 16, a bearing portion 20, and a fitting slot 19. The slot 16 allows the upper edge of the door plate 2a to be fitted thereinto. The bearing portion 20 rotatably bears the door shaft 8 in cooperation with the slip-out preventive fixture 17. The fitting slot 19 allows a fitting piece 18 formed at the slip-out preventive fixture 17 to be fitted thereinto. COPYRIGHT: (C)2004,JPO
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