CONTAMINATION PREVENTING DEVICE OF SOLIDIFIED BODY CONTAINER

摘要

PROBLEM TO BE SOLVED: To remotely and easily attach or detach a contamination preventing cap to or from the bottom of a solidified body container having a bottom structure having no skirt. SOLUTION: A keeper ring 4 is mounted on the inner wall surface of a recessed part 2 of the solidified body container 1 having the dome-like recessed part 2 in its bottom surface so that the ring projects inwardly by a desired amount. This contamination preventing device has the contamination preventing cap 5 having a cylindrical side plate part 5a and a bottom plate part 5b for blocking the lower end position of the side plate part 5a, and the bottom plate part 5b is projected to the proximity of the mounting position of the keeper ring 4. The projecting edge of the bottom plate part 5b of the contamination preventing cap 5 is provided with a push lock device 6 to be engaged with or disengaged from the keeper ring 4. The contamination preventing cap 5 is engaged with the bottom of the solidified body container 1 from the under side.