PIPE MEMBER WITHDRAWAL PREVENTION MECHANISM AND WITHDRAWAL PREVENTION MEMBER

• Main Authors: ARIYOSHI MITSURU, FUJIMOTO MITSUNOBU, OTSUKA SATOSHI, OKUDA TADAHIRO, MAMIYA SATOSHI, MORI SHIGEYUKI, HAZAMA MASAYA
• Format: Patent
• Language: English; Japanese
• Published: 08.08.2016
• 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 perform a positive prevention of withdrawal of pipe members while their sufficient strength is being assured.SOLUTION: This invention constitutes a pipe member withdrawal prevention mechanism comprising: a first pipe member 1; a second pipe member 2 coaxially arranged with the first pipe member 1; a cylindrical collar member 3 having one end side outwardly fitted to the extremity end of the first pipe member 1 and the other end side outwardly fitted to the extremity end of the second pipe member 2, respectively, so as to connect both pipe members 1 and 2; a first watertight member 4 present between the collar member 3 and the first pipe member 1; a second watertight member 5 present between the collar member 3 and the second pipe member 2; and a withdrawal prevention member 6 arranged at the extremity end of the first pipe member 1 to bridge over inner and outer radial surfaces of the first pipe member 1, and abutted against the first watertight member 4 to prevent withdrawal thereof when a withdrawal force acts between the first pipe member 1 and the second pipe member 2.SELECTED DRAWING: Figure 1 【課題】管体の十分な強度を確保しつつ、管体同士の離脱を確実に防止すること。【解決手段】第一管体１と、第一管体１と同軸上に設けられる第二管体２と、一端側が第一管体１の先端部に、他端側が第二管体２の先端部にそれぞれ外嵌めされて、両管体１、２を連結する筒状のカラー部材３と、カラー部材３と第一管体１との間に介在する第一水密部材４と、カラー部材３と第二管体２との間に介在する第二水密部材５と、第一管体１の先端部に、この第一管体１の内外径面に跨るように設けられ、第一管体１と第二管体２との間に引き抜き力が作用した際に、第一水密部材４と当接してその引き抜きを阻止する離脱防止部材６と、を備えた管体の離脱防止機構を構成する。【選択図】図１