Totaku Industries, Inc.

Tigers Polymer Corporation

Nobuo Shindo

Toshihiro Nakanishi

Hiroshi Ikegami

Yasuhiro Kikumori

Tatsuya Machino

Susumu Okairi

Hidenori Shima

Fuminori Egusa

A pipe-end-connecting joint comprisse a nipple inserted in the pipe end, a holder for tightening the outer circumference of the pipe end, and an elastic packing 3 divided into half parts and attached in the holder . The nipple includes a tubular portion 11 provided in one longitudinal end side thereof so as to be inserted in the pipe end, a connection portion provided in the other longitudinal end side thereof so as to be connected to another joint, and a flange portion provided in a longitudinal intermediate portion thereof so as to protrude outward. The holder is divided longitudinally into two split parts A and B so that each of the two split parts A and B has an semicircularly formed inner circumferential surface , and each of the two split parts A and B has one longitudinal end side in which one of the half parts of the elastic packing is mounted, and has the other longitudinal end side in which a ring-like groove is formed so as to be fitted to the flange portion , and further has a longitudinally intermediate portion between the one and the other longitudinal end sides in which a spiral corrugated portion is formed along the outer circumferential surface of the pipe P, the spiral corrugated portion having a spiral protruding portion an inner diameter of which is smaller than an outer diameter of a trough portion r of the pipe P, the two split parts A and B having holes for insertion of connection bolts.

Pipe-end-connecting joint

Growing community of inventors

Osaka, Japan

Nobuo Shindo