Patent ID: 7198746
Filing Date: 2007-04-03
Classification: A61M,B29C,B29L,F16L

Abstract:
1. A method for connecting a member comprising the following steps: providing a member to be connected, said member having a flange at an end to be connected with a synthetic resin member having an overhanging portion which overhangs the flange and is made of a bucklingly deformable synthetic resin; selecting the synthetic resin member to be made of a synthetic resin which is selected from the group consisting of an acrylonitrile-butadiene-styrene copolymer resin, a polystyrene, a styrene copolymer, an acrylic resin, a polycarbonate, a polyvinyl chloride, a polymethyl methacrylate, a polyamide, a polyacetal, a polyethylene terephthalate, a fluorocarbon resin and a thermoplastic polyurethane and whose bucklingly deformed portion becomes whitened; disposing the overhanging portion of the synthetic resin member over the flange of the member to be connected, a tip of the overhanging portion being bucklingly deformed toward the member to be connected so that an inner circumferential surface of the tip of the overhanging portion is in contact all around the circumferential surface of an end of the flange and an end surface of the tip of the overhanging portion is in contact all around the external circumferential surface of the member to be connected by exerting only an external force on the tip of the overhanging portion to the extent that stress rupture does not occur; and locking the flange by the bucklingly deformed tip of the overhanging portion to provide a fluid tight seal and to prevent rotation therebetween.