| 摘要 |
1306278 Pipe coupling AMP Inc 9 Oct 1970 [15 Oct 1969] 48115/70 Addition to 1167779 Heading F2G In a pipe coupling, a pipe 6 having circumferential grooves 14 is received in a tubular body member 1 to abut a shoulder 5 and a rigid sleeve 11 is fitted over the body member, displacing material into sealing engagement with the pipe 6. In one embodiment, shown in Fig. 1, the body portion 1, only half of which is shown may be of resilient synthetic resin formed with external circumferential grooves 7. The sleeve 11 may be of metal and has a sharp lipped end 12. The jaws of a tool are disposed around the sleeve behind a flange 13 and behind a flange 2 on the body member 1, the jaws being moved together to effect the connection wherein material from the body is displaced into the grooves 14. In another embodiment, shown in Fig. 4, a metal pipe 23 having an internal groove 24, is connected to a resilient plastics pipe 37 by the coupling which further includes a tubular extension 20, having an O-ring 28 and internal collar 25, and an insert member 33. With the pipe 23 located on the body extension 20, the sleeve 30 is urged on to the tapered, serrated portion 29 by means of the tool. The pipe 37 and insert 33 are advanced so that the leading part 34 of the insert urges the material of the collar 25 into the groove 24, serrations 35 on the insert engage the flange aperture of the body member and material from the serrations 29 forces the plastics material of the pipe 37 to protrude into grooves 36 on the insert. |
