| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening device capable of reliably securing air-tightness and water-tightness between stile/rail materials by a dry-type seal material in a structure in which stile/rail materials are butted against each other and connected by a corner block.SOLUTION: Upper and lower rails and right and left stiles include hollow parts 21i, respectively, and the hollow part 21i has an indoor wall part 21j constituting at least an indoor side face of a stile/rail body 3. Respective end faces of the upper and lower rails and the right and left stiles are made to abut against each other via seal materials 31, respectively, and are connected by corner blocks 32 inserted into the hollow parts 21i, respectively. A contact part 21p abutting against the indoor side face of the corner block 32 inserted into the hollow part 21i is formed on the indoor wall part 21j of the hollow part 21i, and the position of the indoor side face of the corner block 32 is regulated closer to the outdoor side than the indoor wall part 21j by the contact part 21p. |
