SEALING STRUCTURE FOR CONTAINER, AND DRAIN FILTER

摘要

PROBLEM TO BE SOLVED: To ensure a satisfactory sealability with a maximum capacity maintained within a limited space and to make molding easy. SOLUTION: A step 21 in a specified depth is formed at the inner circumferential side at the upper end of a container main body 12. An annular sealing face forming ring 22 formed in a thickness the same as the depth of the step 21 is formed circumferentially at the end face 12a constituting the step 21. A lid body 13 is attached, with a packing 23 interposed, to a sealing face 20 formed of the end face 12a of the container main body 12 and the surface 22a of the sealing face forming ring 22.