| 摘要 |
PROBLEM TO BE SOLVED: To provide a plug capable of shortening coupling/fixing working hours, at improvable in reliability such as the improvement of an electric contact property or detachment prevention, and also, excellent in usability to be downsized into a compact shape. SOLUTION: In the plug, an insertable cylindrical coupling 4 is positioned at the outermost part around a center conductor 1 and a shell 3 (an outer conductor), and mounted to a receptacle outer peripheral surface in a free turning manner, an inserted part 4B of the coupling 4 includes a spring property so that the diameter of the part can be contracted and expanded. Since a male screw and an insertable female screw 4g of the receptacle outer peripheral surface are provided, and both mechanisms which are a mechanism carrying out the coupling and fixing of the coupling 4 by screw insertion by screwing, and a mechanism carrying out the coupling and fixing by a spring force by pushing to a receptacle are provided, either screw-in or push-in can be selected so as to enhance usability. Also, fixing work is easy so as to reduce working hours, and moreover, there is no risk that the plug comes off from a receptacle, thus being improved in reliability. COPYRIGHT: (C)2010,JPO&INPIT
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