| 摘要 |
<P>PROBLEM TO BE SOLVED: To positively prevent occurrence of an improper connection state by mounting an improper connection preventing device to a plug. <P>SOLUTION: A tubular member 50 is configured such that if a joint member is inserted from a plug front end side to a plug base end side in a mounting state of the plug to a connection part, the joint member makes contact with a tapered protruded part 53 to thereby cause the tapered protruded part 53 to be diametrically enlarged, so that the tubular member is divided into a plurality divided members 70, and the mounting state of the plug to the connection part is released, and if a hose is inserted, the plurality of divided members 70 is integrally maintained, and the mounting state of the plug to the connection part is maintained. <P>COPYRIGHT: (C)2013,JPO&INPIT |
