| 摘要 |
PURPOSE: A can stopper for forgery prevention is provided to prevent separation by forming several locking pieces in an outer stopper and many grooves in a protective stopper and to strengthen the mutual fastening force of the protective stopper against a projected bent part of a can. CONSTITUTION: A can stopper for preventing forgery is inserted and joined to a projected bent part(11) forming the main entrance of a can. An inner stopper(30) screwed with an outer stopper(20) is equipped. Many locking pieces(21) are formed to prevent the open of the can stopper in the outer stopper and operated up and down elastically. Several grooves(41) housing the locking pieces are formed in a protective stopper(40). The protective stopper prevents the outer stopper from separating mutually without pulling the outer stopper for opening. A ledge for preventing disassembly and separation combined closely with the projected bent part of the can and an elastically supporting projection(43) pressing the inner circumference of the inner stopper are formed. Then, the mutual fastening force of the protective stopper is stiffened against the main entrance of the can.
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