| 摘要 |
PROBLEM TO BE SOLVED: To provide door sash fitting structure allowing a sash frame and a lower sash to be easily connected to each other. SOLUTION: A sash frame 3 and a lower sash 5 are connected by a sash bracket 7. Welding plate parts 9, 10 are provided at both upper and lower ends of a plate 8, and a pair of frame plates 11, 12 are provided from a center part between the welding plate parts 9, 10. In the sash bracket 7 and the sash frame 3, a protrusion 8a of the welding plate part 9 is previously fixed to the sash frame 3, and the sash bracket 7 is provided with a pair of frame plates 11, 12 from the center part of the plate 8. The plate 8 is provided with a U- shape groove 15, and a plate spring 16 integrally cut and raised from the plate 8.
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