JPS58157088U

JPS58157088U - pipe fittings

Info

Publication number: JPS58157088U
Application number: JP5535282U
Authority: JP
Inventors: 相良　久男
Original assignee: 焼結金属工業株式会社
Priority date: 1982-04-16
Filing date: 1982-04-16
Publication date: 1983-10-20

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来例の連結状態の断面図、第２図上半はその
部分拡大図、第２図下半はその応力状態を示す線図、第
３図及び第４図は本考案の実施例の未連結状態及び連結
状態の断面図、第５図上半は第４図の部分拡大図、第５
図下半はその応力状態を示す線図である。１１・・・・・・継手本体、ｌｌｂ・・・・・・環状溝
、１１Ｃ・・・・・・インサート部、１１ｄ・・・・・
・環状壁、１１ｅ・・・・・・先端部内面、１２・・・
・・・締着用ナツト、１２ｂ・・・・・・スリーブ嵌入
用凹部、１２Ｃ・・・・・・押圧面、１３・・・・・・
スリーブ、１４・・・・・・チューブ、１５ａ。１５ｂ・・・・・・極大値。Fig. 1 is a sectional view of the connected state of the conventional example, the upper half of Fig. 2 is a partially enlarged view, the lower half of Fig. 2 is a line diagram showing the stress state, and Figs. 3 and 4 are implementations of the present invention. Cross-sectional views of the unconnected state and connected state of the example, the upper half of Fig. 5 is a partially enlarged view of Fig. 4, and Fig. 5
The lower half of the figure is a diagram showing the stress state. 11...Joint body, llb...Annular groove, 11C...Insert part, 11d...
- Annular wall, 11e...Tip inner surface, 12...
... Nut for tightening, 12b ... Recess for inserting sleeve, 12C ... Pressing surface, 13 ...
Sleeve, 14...Tube, 15a. 15b... Maximum value.

Claims

[Scope of utility model registration request]

By fitting the tip of the tube to be connected into the insert part of the joint body and into the annular groove of the joint body, and screwing the tightening nut into the joint body through the sleeve as a sealing member, In a device in which the tip of the sleeve is press-fitted between the annular groove of the fitting body and the outer peripheral surface of the tube to connect the tubes in a sealed state, the inner surface of the tip of the annular wall outside the annular groove in the fitting body. I!
J! 1r3A-shaped curved surface, and the pressing surface opposite to the curved surface in the sleeve fitting recess formed inside the fastening nut is a curved surface that is approximately symmetrical to the curved surface, and both of the above-mentioned A pipe joint characterized in that the maximum values of the stress distribution within the tip based on the groove curved surface are made approximately equal.