| 摘要 |
PROBLEM TO BE SOLVED: To improve safety while achieving space saving. SOLUTION: Since an air compressor 44 and an air tank 46 are housed in the housing chamber 12 of the case 11, no air compressor or air tank is installed outside the case 11 so that space saving can be achieved. Also, since an air hose 45 for connecting the air compressor 44, the air tank 46 and an air nozzle can be housed within the case 11, there is no possibility that the air hose 45 catches a user's foot so that safety can be improved.
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