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1. 发明专利

JPH0215347B2 失效
公开(公告)号：JPH0215347B2
公开(公告)日：1990-04-11
申请号：JP29922785
申请日：1985-12-28
申请人： NIPPON BENKAN KOGYO KK , TAKENAKA KOMUTEN KK
发明人： HAYAKAWA MASAKAZU , NAGASHIMA ISAMU , SENOO TETSUYUKI , SUGIMURA SEIICHI , KAKIZAKI JIRO , GOTO SHIRO , NAKADA NORIO , TOMOSHIRO YOSHE , KAMOSHITA KEN
IPC分类号： B25B27/16 , B25B27/02

3. 发明专利

JPS6326226A METHOD AND TOOL FOR CONNECTING TUBE 失效
公开(公告)号：JPS6326226A
公开(公告)日：1988-02-03
申请号：JP16754486
申请日：1986-07-16
申请人： NIPPON BENKAN KOGYO KK , DIA IND KK
发明人： NISHIKAWA TADAYOSHI , OCHIAI SABURO , SENOO TETSUYUKI
IPC分类号： B21D39/04
摘要： PURPOSE:To realize simple and sure tube connection by holding the groove part of a coupling by the crimping jaw of a tube connection tool, and at the same time, fitting a clamp to a groove in outer periphery of the end of the tube to confirm propriety of amount of insertion to the coupling. CONSTITUTION:A groove 43 having sectional form of circular arc is formed on the outer periphery of the cut end 7a of a tube 7 at a position longer than the length of insertion to a coupling 3 by a specified length, and inserted in the coupling 3 having an O ring fitted to the groove part 1. Then, the groove part 1 is held by the groove 14 of the crimping jaw of a tube connection tool, and at the same time, a linear projection 42 of a clamp 40 provided in a body with the crimping jaw 10 is fitted to the groove 43. After confirming that the amount of insertion of the tube 7 to the coupling is proper, jaws 10a, 10b are driven, and overlapped part of the coupling 3 and the tube 7 is clamped and pressure bonded. Thereby, improper connection of the coupling and tube can be prevented perfectly, and tube connection can be made simply and surely.

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