| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem with a conventional muntin that the muntin is only grasped as a means for forming a planar geometrical pattern and is used as the application of an ornament to some part of household furnishings although being widely utilized as an ornament in an opening of a Shoji screen, a door, a transom or the like. SOLUTION: A regular hexagonal muntin is formed by combining at intervals of 120 deg. each engaging part of three muntin pieces among several kinds of muntin pieces, in each one of which two parts are formed, by three so as to be formed into a spherical body having twelve regular hexagonal holes thereon by connecting twenty spherical regular hexagonal muntins each curved so as to form some part of a spherical surface. Or, at least one hole of the twelve formed regular pentagonal holes is shaved into a circular hole.
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