PIPE JOINING MECHANISM FOR TWO PIPES WHOSE END DIVISIONS ARE FITTED TO EACH OTHER

摘要

PROBLEM TO BE SOLVED: To reduce a parts manufacturing cost by simplifying assembling of a pipe joining mechanism. SOLUTION: A hinge ring 3 is arranged between mutually fitting end divisions of two pipes 1 and 2. This hinge ring 3 can slidingly move in the shaft direction along an outside surface of the inner pipe 1 before the two pipes 1 and 2 are fastened together. An outside surface of the hinge ring 3 and an inside surface of an end division 4 of the outer pipe 2 have the spherical surface-shaped contours to cooperate with each other, and can adjust a joining angle of both pipes 1 and 2. After a length and the joining angle are adjusted, they are fastened together by two fastening members respectively fixed to the outer pipe.