| 摘要 |
PROBLEM TO BE SOLVED: To provide sash frame fixing hardware having a rational structure from the viewpoints of maintenance of strength, machining property, manufacturing cost, and material cost and having a structure capable of obtaining further load-proof property and a sense of stability. SOLUTION: This sash frame fixing hardware is constituted in such a way that it is provided with propping-up walls 2 in two rows which are like a bar having a U-shaped cross sectional shape over the whole length, are extended from both ends of its folding-back part 1, and rise symmetrically across a clearance, and nipping channels 5 nipping a pair of inward facing projecting fringes 4 provided by opposing to an inner side face of a bag part of a sash frame 3 are provided in both end parts of both propping-up walls 2 in the same way. A tip of each nipping channel 5 is tapered toward an inner side in the longitudinal direction of the propping-up walls 2 from end parts of the propping-up walls 2. As for width of the nipping channel 5, width of the most end part is sufficiently larger than thickness of the ordinary inward facing projecting fringe 4, and width of the deepest part on an inner side is sufficiently smaller than thickness of the ordinary inward facing projecting fringe 4. Distance between the deepest parts of the pair of nipping channels 5 formed on each popping-up wall 2 is substantially equal to distance between tips of the pair of inward facing projecting fringes 4. COPYRIGHT: (C)2005,JPO&NCIPI
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