RUBBER SEAL FOR VACUUM RECEPTACLE AND LID FOR THE RECEPTACLE USING THE SAME

摘要

Disclosed is a rubber seal for a vacuum receptacle. The rubber seal is not released by a negative pressure developed in the vacuum receptacle. In addition, the rubber seal is excellent in sealing force, and has a body portion that does not bulge outward while being readily mounted on a lid body. The rubber seal includes: the body portion that surrounds the lateral side of an inner space and extends vertically; an elastic sealing wing portion formed to extend outward from the body portion and provided along the circumference of the body portion; and a multi-functional wing portion formed to extend outward from the body portion above the elastic sealing wing portion, and provided along the circumference of the body portion.