| 摘要 |
<P>PROBLEM TO BE SOLVED: To firmly retain a plug for supplying a pressure gas and a plug for discharging liquid. <P>SOLUTION: This loosening prevention device 1 for plugs comprises: a first sleeve 11 surrounding and engaging a first plug 70 mounted on a lid portion 61 of a liquid tank 60; a second sleeve 21 surrounding and engaging a second plug 80 mounted on the lid portion; and a connecting means 24 connecting and fixing the first sleeve and the second sleeve with each other. Outer peripheral faces 74, 84 of the first plug and/or second plug have at least one flat face 75, 85, and at least one flat face 12, 22 kept into face-contact with the flat faces of the first plug and/or the second plug are formed on inner peripheral faces of the first sleeve and/or the second sleeve. <P>COPYRIGHT: (C)2007,JPO&INPIT |
