ELECTROFUSION PLASTIC JOINT

• Main Author: NISHIKATA NOBUHIRO
• Format: Patent
• Language: English
• Published: 25.01.2000
• Edition: 7
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To prevent the detachment of a joint from a connector pin during the handling, or to prevent defective connection by providing a bank at the position where a conductor wire of an outer circumferential surface of a pipe joint is arranged, forming a fixed groove, and fitting the resin-coated conductor wire to connect an end part of the conductor wire to the connector pin. SOLUTION: A bank 52 which is projected from an outer surface 51 of a joint and continuous thereto is provided on the outer surface 51 on the side where connector pins 15, 15 are connected by a resin-coated conductor wire 3 in a joint body 50, and a fixed groove 53 in which the resin-coated conductor wire 3 is fitted is provided in the bank 52. The width of the fixing groove 53 is approximately same as the outside diameter of the resin-coated conductor wire 3 and a bottom surface of the groove is provided at least on the projection level of projecting wall thickness parts 25, 26 in the vicinity of a thermally bonded part between an intermediate member 20 and a connection member 10. The groove in a center part may be provided deep so that the conductor wire 3 is difficult to detach. Since the coated conductor wire 3 is fitted in the fixed groove 53, and connected to the connector pin 15 over an upper surface of the projecting thickness walls 25, 26, the pin can be easily connected.