Patent ID: 7032364

Claim:
A device for changing a bottle stopper, for exchanging a bottle stopper that closes an opening of a head of a bottle containing fluid, the device comprising: an airtight container detachably mountable on the head of the bottle via an airtight mounting mouth; a gas supply port provided on said airtight container for supplying deterioration preventive gas to said airtight container; an air vent valve provided on said airtight container for discharging air from said airtight container; a first supporting structure for supporting a bottle opening member for detaching the bottle stopper in an airtight chamber, the first supporting structure being movable upward and downward while holding airtight in the airtight chamber; a second supporting structure for mounting the substitute stopper contained in the airtight chamber in a standing position on the opening of the head, the second supporting structure being movable upward and downward while holding airtight in the airtight chamber; and an operation body being operational either individually or commonly with said first supporting structure and said second supporting structure, wherein said first supporting structure and said second supporting structure are mutually position changeable between them in order to place said first supporting structure or said second supporting structure above the opening of the head via the airtight mounting mouth while holding airtight of the airtight chamber, and wherein the bottle stopper detached by downward movement of said first supporting structure by means of an operation of said operation body and by a bottle opening operation of the bottle opening member is able to pull in the airtight chamber via the airtight mounting mouth as said fast supporting structure moves upward when said first supporting structure is placed above the opening of the head, and wherein the substitute stopper contained in the airtight chamber by the operation of said operation body is mountable on the opening of the bead via the airtight mounting mouth as said second supporting structure moves downward when said supporting structure is placed above the opening of the head.