| 摘要 |
PROBLEM TO BE SOLVED: To enable the assembly of a fitting frame of sash and a fixing work of sash by only one worker (i.e: a sheet metal worker) and to enable quick work in short time by assembling the sash fitting frame by sheet metal processing. SOLUTION: A vertical (longitudinal) furring strip 14 and horrizontal furring strip 15 are placed around the opening where the sash 16 is about to be furnished. On the part of flange 2 and 3 of a vertical furring panel 14 consisting of some wide flange shapes, there is a cutpart 7 where the side frame 16a of sash 16 and the end 15a of horrizontal furring strip 15 are about to be insertted. The end 15a of horrizontal furring strip 15 is inserted into the cutpart 7 and fixes one end of joint metal fitting 6 to the end 15a of horrizontal furring strip 15 by using rivet 8, and then it fixes the other end of joint metal fitting 6 to the web 4 of the horrizontal furring strip 14 by rivet 8. After then sash 16 is fixed to fit into fixing frame 5, so that the side frame 16a of sash 16 can be inserted into cutting flute 7.
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