| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a checker for controlling connection of a pipe joint for clearly deciding mutual connection of male and female members of the pipe joint visually and tactually whether in an incomplete connection state or in a complete connection state. <P>SOLUTION: A display body 3 is provided so as to advance and retreat in a connected direction on an outer circumferential part of a main body 10 of a tube connecting pipe 1, which is one of a male member and a female member connected with the male member. In the complete connection state to a support body 2, which is the other one of the male member and female member, one end part of the display body 3 is projected from a structural wall of the main body 10 to an opposite side to the connected direction. In the incomplete connection state to the support body, the one end part of the display body 3 is immersed in the structural wall of the main body 10. The display body 3 is formed in a cylindrical shape and is externally inserted in an outer circumferential part of the main body. The support body 2 is provided on a tank or fluid equipment or is integrally formed. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
