| 摘要 |
PROBLEM TO BE SOLVED: To provide a folding door having a latch structure capable of opening-closing a sash by operation in the longitudinal direction of a horizontal frame, and adaptable to the sash opened-closed by such the operation, without providing a play and kick-out mechanism for sliding the sash when opening-closing the sash.SOLUTION: A sash 5 is opened by folding up so as to project to the indoor side by pull operation in the longitudinal direction of a horizontal frame 9, and a roller latch 67 comprises a roller 73c projected on the indoor side more than an indoor side surface of the sash 5 and freely rotatable around a vertical shaft 73b and an energizing member 75 for energizing the roller 73c in the longitudinal direction of the horizontal frame 9, and a latch receiver 69 comprises an inclined part 76 projected on the indoor side more than the indoor side surface of the sash 5 and inclined so as to become close to a door end frame 11 toward the outdoor side on a depth surface 69a and an engaging-holding part 77 continuing with the inclined part 76, and when the sash 5 moves in the closing direction, the roller 73c is guided by the inclined part 76 of the latch receiver 69, and is stored in the engaging-holding part 77 when closing the sash 5. |
