| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a plastic vessel having a dry resin inner vessel having a click feeling and sealability capable of being adjusted separately, hardly affected by the deterioration of a member caused by the opening and closing of a cover and allowing the confirmation of a limit of an effective drying function. <P>SOLUTION: In a cylindrical vessel having the cover openably/closably connected to the upper end opening of an outer vessel body through which the dry resin inner vessel is inserted, a plurality of fitting protrusions are formed in the circumferential direction on the outer circumferential surface of the upper end of the circumferential wall of the outer vessel body; a mating ring is provided on the inner circumferential surface of the lower end of the circumferential wall of the cover; an inner ring is vertically provided on the under surface of the top plate; the dry resin is obtained by dispersing and mixing a calcium oxide and/or a polymer water absorbing body in a base resin; a plurality of ventilating grooves each having a V-letter shaped cross-section are formed in the circumferential direction continuously from the upper surface of the circumferential wall of the inner vessel to the lower end of the outer circumferential surface; a plurality of ventilating holes are formed at the bottom wall; a limit line of the effective drying ability of the inner vessel is provided on the inner circumferential surface of the circumferential wall of the outer vessel body corresponding to the upper end position of the circumferential wall at the limit of the effective drying ability of the inner vessel; and the tip position of the inner ring of the cover material is located at a position upward in the vicinity of the limit line of the effective drying ability of the inner vessel. <P>COPYRIGHT: (C)2008,JPO&INPIT |
