| 摘要 |
PROBLEM TO BE SOLVED: To rotate a nozzle body in a wide range, and fasten it surely at a rotative position of the nozzle body by changing freely a direction of the nozzle body by combining several sets of universal joint components comprising clamping bodies such as a fixing junction pipe, a rotative junction pipe provided freely rotatably provided thereto, a bolt for fixing the rotative junction pipe, or the like. SOLUTION: A universal joint device 1 has at least a universal joint component 2 and another universal joint component 3. The universal joint component 2 comprises a fixing junction pipe 21 provided in a threaded hole 41 of a fixing body 4, a rotative junction pipe 22 provided freely rotatably provided thereto, and a bolt 23 for fixing the rotative junction pipe 22. An open-close plug 26 is provided to the fixing junction pipe 21. The rotative junction pipe 22 can be rotated by almost 360 deg. in a direction crossing at right angle an axis of the fixing junction pipe 21 by threading back and in of the bolt 23. The universal joint component 3 has, in the same way, a fixing junction pipe 31, a rotative junction pipe 32, and a bolt 33. A nozzle body 5 is rotatably or in a fastened state provided to the rotative junction pipe 32.
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