| 摘要 |
1309537 Joints H ZENHAUSERN 29 July 1971 [19 Aug 1970] 35701/71 Heading A4H [Also in Divisions E1 E2 and F2] Hollow members such as steel tubes 1, 2 coated with polyethylene or aluminium may be connected together e. g. in a frame by a connector comprising a body 5 having a plurality of tapered bores 6, 10 and a wedge sleeve 12 having a bore 13 which fits the tube 1 to be connected and an outer surface 14 complementary to the body bore 6. The body bore 6 and sleeve surface 14 are designed to produce a self-locking clamping action on the tube 1 when the sleeve 12 is pressed into the bore 6. As shown, the connector body 5 may connect a tube 1 to another tube 2 which is received in a blind, tapered bore 10. The outer coating 16 of the tube 2 may act as the locking sleeve 12. The self-locking action of the sleeve 12 or coating 16 with the bores 6, 10 may be achieved by forming on each a series of annular teeth 8, 11 which are directed away from the direction of withdrawal of the sleeve 12 or the tube 2. A bead 15 on the sleeve 12 limits the extent of the insertion into the bore 6. A sealing member 17 seals the end of the tube 2. The body member 5 and the sleeve 12 may be of nylon or other plastics material having elastic properties. |
