| 摘要 |
PROBLEM TO BE SOLVED: To enable an ID tag to reliably operate and perform printing on the ID tag mounted to a barrel container for drinks. SOLUTION: A cylindrical protrusion 3 is formed at a bottom of a beer barrel container 1, and an ID tag 7 is fixed to the cylindrical protrusion 3 so that the mutual centers coincide with each other. In this case, a recessed part 8 is formed inside the cylindrical protrusion 3, and the ID tag 7 is located at a position spaced from a metal face of the beer barrel container 1. When the beer barrel container 1 is filled with beer in the beer filling line, the beer barrel container 1 is inverted, and the filling of beer is carried out under the condition that a mouth stopper 2 is positioned on the underside of the container 1 while the ID tag 7 is positioned on the upper side thereof. At the time, since a track in which the ID tag 7 passes is constant, a reader/writer for the ID tag can communicate with the ID tag 7. |
