| 摘要 |
PROBLEM TO BE SOLVED: To easily open an window opening part of sliding doors to its full width by forming the sliding door structure of an outer window frame to be fitted to the window opening part and an inner window frame provided with sliding doors inside thereof, and fitting the inner window frame in the outer window frame so that the sliding doors can be freely opened and closed with the inner window frame. SOLUTION: An inner window frame 2 is formed into a shape and a dimension capable of being fitted in the inner dimension of an outer window frame 1 without generating a clearance, and divided into two of a left frame A and a right frame B at a nearly central part thereof. A groove 3 is formed in an inside surface of an upper and a lower lateral frame plates 2a, 2b of the inner window frame 2, and a rectangular first sliding door panel 4 and a rectangular second sliding door 5 are fitted in right and left of the inner window frame 2 freely to be slid. Vertical frame plates 2c of a left frame A and a right frame B of the inner window frame 2 are respectively fitted to vertical frame plates 1c of the outer window frame 1 by hinges 6 freely to be turned around these hinges 6. At the time of fully opening this sliding door, both the first and the second sliding door panels 4, 5 are moved to any one of the left frame A and the right frame B of the inner window frame 2, and both the sliding door panels are turned forward with the right frame B.
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