| 摘要 |
PROBLEM TO BE SOLVED: To clean an air path by connecting between an intake port and an exhaust port of an air curtain device for a game hall by means of a cleaning attachment so as to form the circulating air path, and cleaning the air path by spraying a cleaning fluid from a cleaning fluid injection hole. SOLUTION: Upon spraying and injecting the cleaning fluid from the cleaning fluid injection hole 20d after the cleaning attachment 20 is mounted, the misty cleaning fluid flows along blast of a fan 16 to circulate through an air path 15 of the air curtain device 10 for the game hall and an air path 20c of the cleaning attachment 20 (see Fig. (a)). Part of the misty cleaning fluid in circulation is successively recovered via a cleaning fluid receiving port 20e into a cleaning fluid recovery container 21 by the gravity or centrifugal force (see Fig. (b)). After continuously blowing air for a few minutes, timing at which all the sprayed and injected cleaning fluid is recovered into the cleaning fluid recovery container 21 is well estimated, and then the cleaning fluid recovery container 21 is detached to dispose the dirty cleaning fluid (see Fig. (c)). COPYRIGHT: (C)2008,JPO&INPIT
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