JPS60118087U

JPS60118087U - bite-in pipe fitting

Info

Publication number: JPS60118087U
Application number: JP571584U
Authority: JP
Inventors: 野崎　日出男; 長井　卓夫; 大江　悟
Original assignee: 日立金属株式会社
Priority date: 1984-01-19
Filing date: 1984-01-19
Publication date: 1985-08-09

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 the drawing]

第１図は従来のくい込み管継手の一例を示す半部縦断面
図、第２図は第１図に使用している従来の環状スリーブ
を示す半部縦断面図、第３、第４、第５図は本考案のく
い込み管継手に用いるくい込しみ環を示す半部縦断面図
、第６図、第７図は本考案のくい込み管継手を示し第６
図はくい込み作用前の状態を示す要部拡大縦断面図、第
７図はナツト締付完了後の状態を示す要部拡大縦断面図
である。１・・・継手本体、２・・・締付ナツト、４・・・被接
続管、１５・・べい込み環、２１・・・前スリーブ、２
２・・・後スリーブ、Ａ・・・前側段部、Ｂ・・・後側
段部。Fig. 1 is a half vertical sectional view showing an example of a conventional bite-in pipe joint, Fig. 2 is a half longitudinal sectional view showing a conventional annular sleeve used in Fig. Figure 5 is a half longitudinal sectional view showing the bite ring used in the bite pipe joint of the present invention, and Figures 6 and 7 show the bite ring of the present invention.
The figure is an enlarged longitudinal cross-sectional view of the main part showing the state before the biting action, and FIG. 7 is an enlarged longitudinal cross-sectional view of the main part showing the state after the nut has been tightened. DESCRIPTION OF SYMBOLS 1...Joint body, 2...Tightening nut, 4...Connected pipe, 15...Built-in ring, 21...Front sleeve, 2
2... Rear sleeve, A... Front step section, B... Rear step section.

Claims

[Claims for Utility Model Registration] 1. A joint body with a thread provided on the outer surface of the end and a tapered hole portion on the inside of the male thread that narrows toward the center in the axial direction, and a fitting body that is screwed into the male thread. The tightening nut is equipped with a screw and has an inclined inner surface where the inner surface of the neck part narrows toward the outside in the axial direction. a front sleeve portion having a rear end which is pressed by the inclined inner surface of the nut, a rear sleeve portion having a rear end outer periphery formed on an arc and a rear end inner periphery having an annular edge; and the front sleeve and the rear sleeve. In between, the front side has an angle to engage with the inner peripheral edge of the opening of the tapered hole of the joint body, and the rear side has a stepped part with an angle opposed to the inclined inner surface of the nut. A bite-in pipe joint characterized by comprising: 2 Utility Model Registration Scope of Claim 1 The bite pipe joint according to claim 1, wherein the wall thickness near the joining portion between the front sleeve and the stepped portion is formed to be thinner than the wall thickness at the front end portion of the front sleeve. 3 Utility Model Registration Scope of Claim 1 The bite pipe joint according to claim 1, wherein the wall thickness near the joint between the rear sleeve and the stepped portion is formed to be thinner than the wall thickness at the rear end of the rear sleeve.