To provide a method of easily replacing a passage tube to be replaced with a replacement passage tube in the passage tube for game balls.
The both ends 27a and 27b of the passage tube 27 to be replaced are detached from the side of a game machine 20 and a guide passage 83 respectively, and the passage tube 27 to be replaced and the replacement passage tube 27 are firmly and externally fitted to a pin member 28 and connected to each other to form an annular body. The annular body is turned so that the positional relation between the passage tube 27 to be replaced and the replacement passage tube 27 is reversed to the positional relation before the replacement. Then, the pin member 28 is detached to release the connection between the passage tube 27 to be replaced and the replacement passage tube 27 and the both ends 27a and 27b of the replacement passage tube 27 are connected to the side of the game machine 20 and the guide passage 83 respectively.
FUJISAWA NOBUYUKI
AOKI TOSHIYUKI
OMOTENISHI SHUSUKE
SATSUMA YASUTOMO
OKUBO KENJI
TAKAMI MASANORI
HAYASHI NOBUYUKI
KAWAMATA ISAMU
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