| 摘要 |
PROBLEM TO BE SOLVED: To provide fittings which can prevent an increase in cost by virtue of structural simplicity, and which can facilitate an opening/closing operation. SOLUTION: A lower movable sliding door 10A is urged upward by an urging force of a balancer 15, and the lower movable sliding door 10A and an upper movable sliding door 10B are connected together by using an interlocking mechanism 17. Thus, both of the respective movable sliding doors 10A and 10B do not have to be urged upward, and an increase in manufacturing cost can be prevented by structurally simplifying the balancer 15. Furthermore, since the interlocking mechanism 17 makes the movable sliding door 10B moved for opening/closing in such a manner as to be interlocked with the opening/closing movement of the movable sliding door 10A, the movable sliding door 10B can also be opened/closed by the opening/closing operation of the movable sliding door 10A alone, and the opening/closing operation can be easily performed. Since the single opening/closing operation also enables the double-hung window 1 to be widely opened/closed, operability can be enhanced. COPYRIGHT: (C)2007,JPO&INPIT
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