| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a joining device that is able to utilize a resource more effectively than a conventional one in replacement of an ink container.SOLUTION: A joining device 100 comprises: a container fixed mouth stopper 130 fixed to an ink pack 43 and forming a channel 130a connected to the inside of the ink pack 43; and a replaceable mouth stopper 140 in which a channel 140a is formed to be connected with the channel 130a. The container fixed mouth stopper 130 includes: a tapering contact part 131b arranged on the outer periphery of the channel 130a; and a male thread part 131c. The replaceable mouth stopper 140 includes: a tapering contact part 141b arranged on the outer periphery of the channel 140a and configured to be brought into contact with a contact part 131b; and a female thread part 141c for fitting on the male thread part 131c. The contact parts 131b and 141b are designed such that when the male thread part 131c and female thread part 141c are fitted together, a gap is prevented from being made between them due to their contact.</p> |
