CEILING PLATE FOR CEILING WITH GAPPED JOIST AND EXECUTING METHOD FOR CEILING WITH GAPPED JOIST

摘要

PROBLEM TO BE SOLVED: To provide a ceiling plate for a ceiling with gapped joist which can simplify the execution of the ceiling with gapped joist and reduce cost required for the execution. ;SOLUTION: A ceiling plate 2 has a ceiling plate 2, a ceiling plate body 4, a muntin 8 provided with the first engaging groove 6 and a longitudinal sash bar 12 provided with the second engaging groove 10. In addition, in the ceiling plate 2, the first protruding part 16 in the upper part of the first engaging groove 6 of the muntin 8 is longer than the second protruding part 18, and the third protruding part 20 in the upper part of the second engaging groove 10 in the muntin 8 is formed shorter than the fourth protruding part 22. The total of the protruding length of the first and the third protruding part 16, 20 is set up longer than the total of the protruding length of the second and the fourth protruding part 18, 22, and when a joint plate 13 is engaged in the first and the second engaging groove 6, 10 of mutually adjacent ceiling plates 2a, 2b, the lower face of a part corresponding to the outer end of the first protruding part 16 of the joint plate 14 in the ceiling plate 2a is composed to be covered by the fourth protruding part 22 in the ceiling plate 2b.;COPYRIGHT: (C)1998,JPO