| 摘要 |
PROBLEM TO BE SOLVED: To connect many drain trays to one another in a simple manner without the need for any special members for connecting the drain trays. SOLUTION: This drain tray T comprises a bottom face formed into a shape of meshes 1 or a lattice, a restricting plate 5 inserted into each of four corners of a frame plate 2, and flanges 6 provided at an upper opening. In this drain tray T, a female connecting piece 7 is formed by allowing a plate piece 9d with a width W and a height H to fall from an edge of one flange 6 on the opposed sides of the flanges 6 at the opening and by allowing a plate piece 9u with a width W0 narrowed by a width ΔW from each of both side edges of the width W to be folded back at the lower end of the plate piece 9d and rise up continuously from that position up to the underface of the flange 6. On the other hand, a male connecting piece 8 is formed by allowing a plate piece 9n with a width W1 added by a width δW to both the sides of the width W0 of the rising plate piece 9u of the female connecting piece 7 to fall from an edge of the other flange 6 and by providing protrusions 10 extending outward at both lower ends of the plate piece 9n. |
