| 摘要 |
PROBLEM TO BE SOLVED: To suppress the rattling and rocking of a vertical frame by suppressing the occurrence of a gap between a horizontal frame and the vertical frame. SOLUTION: An outer width W of a longitudinal side horizontal frame 1 is greater than an outer width w of the vertical frame 3. At a corner, the side face of the vertical frame as well as the end side face of a cross side horizontal frame 2 abut on the end grain face of the longitudinal side horizontal frame. COPYRIGHT: (C)2005,JPO&NCIPI
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