PROBLEM TO BE SOLVED: To rapidly and appropriately sterilize the inside of a hollow body.SOLUTION: The hollow body is set in an inverted state, and a sterilization chemical solution is injected into a downward mouth part thereof through a second flow passage surrounding a first flow passage while sterilizing the inside of the hollow body by injecting sterilization heated water into the hollow body through the first flow passage located at the central axis of the mouth part. The sterilization chemical solution injected through the second flow passage is inverted inside the mouth part, combined with the sterilization heated water injected into the hollow body through the first flow passage, and carried to the outside of the hollow body along the inner surface of the mouth part, whereby the mouth part is sterilized.COPYRIGHT: (C)2012,JPO&INPIT【課題】中空体内を迅速かつ適正に殺菌する。【解決手段】中空体を倒立状態にし、その下向きになった口部の中心軸に位置する第一の流路から殺菌用加熱水を中空体内に噴射して中空体内を殺菌しつつ、第一の流路を囲む第二の流路から殺菌用薬液を口部内に噴射し、この第二の流路から噴射した殺菌用薬液を口部内で反転させ、第一の流路から中空体内に噴射した殺菌用加熱水と合流させて口部の内面に沿って中空体外へと流しつつ口部を殺菌する。【選択図】図2
