| 摘要 |
PROBLEM TO BE SOLVED: To enable a heat pipe to be fabricated efficiently without use of a nozzle pipe and prevent unexpectedly rushing working fluid from flowing out of a container at a time of fabrication of the heat pipe. SOLUTION: The coupler 1 is provided with a fit part 2A fitted into a working liquid-injecting port 81 of a container on a lower end part, a tubular coupler body 2 having a connection part 2B connected with a working liquid-injecting tool 9 on an upper end part, two gripping members 3 provided swingably on the coupler body 2 so as to grip an outside surface of the working liquid- injecting port 81 of the container by edges, and a tubular locking member 4 for locking the gripping members 3 by being fitted shiftably on the coupler body 2 in a longitudinal direction of the same. Working liquid flow-preventing parts 2C, 2C being 0.2-1 mm in inside diameter and 10-60 mm in length are provided inside the coupler body 2.
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