| 摘要 |
<p>PROBLEM TO BE SOLVED: To cope with various kinds of bending without rotation a pipe by inserting a pipe into tapered sockets reducing bore diameters symmetrically with respect to a shaft at deeper parts and inserting rubber tapered rings reducing outside diameters symmetrically with respect to the shaft closer to their tips between the pipe and the socket. SOLUTION: In a hard vinyl chloride resin pipe coupling 1, tapered sockets 11 reducing bore diameters symmetrically with respect to a shaft at deeper parts are provided at both ends. Tip parts of hard vinyl chloride resin pipes 2, 2 are inserted into the tapered sockets 11 of the pipe coupling 1. Rubber tapered rings 3, 3 are inserted and adhered between the pipes 2, 2 and the tapered sockets 11 of the pipe coupling 1. The tapered rings 3 reduce outside diameters symmetrically with respect to the shaft closer to their tips. Therefore, the pipes 2, 2 can be bent for the sockets 11 of the pipe coupling 1 by compressing the tapered rings 3, 3.</p> |
