LATTICE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To easily discharge a treatment solution inside each hollow member. SOLUTION: A longitudinal stile discharge passage 12 is formed in a longitudinal stile 1. An insertion hole 14 meeting the outline shape of a transverse stile 2 which is open between space pieces 13 and 13 of he transverse stile 2 is formed in an inner surface 1a of the longitudinal stile 1. The transverse stile 2 is inserted into the through hole 14, and a longitudinal stile discharge hole 7 for discharging a treatment solution between a pair of space pieces 13 and 13 is formed in a part of the insertion hole 14. A longitudinal stile discharge passage 8 having a cover 5 inside the longitudinal stile is formed on the inner surface 1a of the longitudinal stile 1. An U cross-sectioned cover 6 inside the transverse stile is fitted between the space pieces 13 and 13 of the transverse stiles 2 and 2. Both ends of longitudinal lattices 3 are passed through the cover 6 between upper and lower transverse stiles. A space is formed between the end of the longitudinal lattice 3 and an inner surface 2a of the transverse stile 2, and a transverse stile discharge passage 9 for introducing the treatment solution entering the longitudinal lattice 3 in a transversely suspended manner is formed in the cover 6 in the transverse stile. A communication hole 10 for communicating the longitudinal stile discharge passage 8 with the transverse stile discharge passage 9 is formed inside the cover 6 of the transverse stile at both ends of the cover 5 and in the longitudinal stile.