| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a header configured such that if a header unit constituting the header is removed, signs thereof remain. <P>SOLUTION: A fitting structure 10 includes a first tube body 80 and a second tube body 82 which are connected by a connection means 22. The first tube body 80 has a multilayer construction including an inner tube 18 having a first flow path 16 therein and an outer tube 46 surrounding the inner tube 18, and has one end defined as a connection tube portion 20 for use in connection from which the outer tube 46 is removed. The second tube body 82 has a second flow path 17 therein, and provided with the connection means 22 at the end portion, and the connection means 22 connects the connection tube portion 20. On this occasion, the first flow path 16 and the second flow path 17 are communicated. The first tube body 80 has a notch portion 36 which is formed by notching the outer tube 46 and receives the insertion of a tool moved along the inner tube 18 and releasing the connection of the connection means 22. A restriction means 38 projected from the outer tube 46 to the notch portion 36 to be easily cut off and preventing the insertion of the tool is provided to the notch portion 36. <P>COPYRIGHT: (C)2013,JPO&INPIT |
