| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening sash in which locking operation by a locking rod can be smoothly conducted. SOLUTION: The locking rod 3 to be protruded from an upper end of a sash A to be locked to a window upper frame Ca by operating a lever 2, and a locking piece 9 constantly protruded from an upper end of the sash A by energization by a spring 17 to be pressure-fitted to a flat lower surface part 18A of the window upper frame Ca are provided on the sash A.
|
