JPS584239U - Segment shape in segment type tube expander - Google Patents

Segment shape in segment type tube expander

Info

Publication number
JPS584239U
JPS584239U JP9525781U JP9525781U JPS584239U JP S584239 U JPS584239 U JP S584239U JP 9525781 U JP9525781 U JP 9525781U JP 9525781 U JP9525781 U JP 9525781U JP S584239 U JPS584239 U JP S584239U
Authority
JP
Japan
Prior art keywords
segment
shape
type tube
tube expander
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9525781U
Other languages
Japanese (ja)
Other versions
JPS637392Y2 (en
Inventor
英夫 林
隆 中野
Original Assignee
日本鋼管株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本鋼管株式会社 filed Critical 日本鋼管株式会社
Priority to JP9525781U priority Critical patent/JPS584239U/en
Publication of JPS584239U publication Critical patent/JPS584239U/en
Application granted granted Critical
Publication of JPS637392Y2 publication Critical patent/JPS637392Y2/ja
Granted legal-status Critical Current

Links

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  • Lining And Supports For Tunnels (AREA)

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図はいわゆるベル形に拡管した管端部を示−す断面
図。第２図および第３図は第１図の拡管に使用する従来
のセグメント形状のセグメント式拡管機のそれぞれ縦断
面図および横断面図。第４図は従来のセグメント形状に
おける管とセグメントとのズレが生じる状態を示す部分
的断面図。第５図は本考案によるセグメント形状を示す
セグメントの縦断面図。第６図および第７図は第５図の
セグメントによる拡管状態を示すそれぞれ部分的縦断面
図。 １・・・・・・管、２・・・・・・セグメント、３−・
・曲ロッド、４・・・・・・押工板、１０・・曲セグメ
ント、１ｏＡ・・曲突出部、１０Ｂ・・・・・・フラン
ジ、１０Ｃ・・・・・・メーパＯFIG. 1 is a sectional view showing the end of a tube expanded into a so-called bell shape. 2 and 3 are a longitudinal sectional view and a transverse sectional view, respectively, of a conventional segment-shaped tube expander used for expanding the tube shown in FIG. 1. FIG. 4 is a partial cross-sectional view showing a state in which misalignment occurs between a tube and a segment in a conventional segment shape. FIG. 5 is a vertical sectional view of a segment showing the shape of the segment according to the present invention. FIGS. 6 and 7 are partial vertical sectional views showing a state of tube expansion by the segments of FIG. 5, respectively. 1...tube, 2...segment, 3-...
- Bent rod, 4... Pressed plate, 10... Curved segment, 1oA... Curved protrusion, 10B... Flange, 10C... Maker O

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] セグメント形状’ｔｉにおけるセグメントにおいて、管
内に挿入される側であるセグメント先端の外周縁に沿っ
て半径方向外方へ隆起するアール状突出部を形成し、ま
たセグメント後部表面に管端へ向って縮径するテーパー
面を形成したことを特徴とするセグメント形状。In the segment having the segment shape 'ti, a rounded protrusion is formed that protrudes radially outward along the outer circumferential edge of the segment tip, which is the side to be inserted into the tube, and a radiused protrusion is formed on the rear surface of the segment that contracts toward the tube end. A segment shape characterized by forming a tapered surface with a diameter.
JP9525781U 1981-06-29 1981-06-29 Segment shape in segment type tube expander Granted JPS584239U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9525781U JPS584239U (en) 1981-06-29 1981-06-29 Segment shape in segment type tube expander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9525781U JPS584239U (en) 1981-06-29 1981-06-29 Segment shape in segment type tube expander

Publications (2)

Publication Number Publication Date
JPS584239U true JPS584239U (en) 1983-01-12
JPS637392Y2 JPS637392Y2 (en) 1988-03-02

Family

ID=29890171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9525781U Granted JPS584239U (en) 1981-06-29 1981-06-29 Segment shape in segment type tube expander

Country Status (1)

Country Link
JP (1) JPS584239U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007237257A (en) * 2006-03-09 2007-09-20 Sumitomo Metal Ind Ltd Mechanical expander, and method for manufacturing seamless steel pipe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4972712A (en) * 1972-11-17 1974-07-13
JPS5614034A (en) * 1979-07-16 1981-02-10 Caterpillar Tractor Co Tube expander and its method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4972712A (en) * 1972-11-17 1974-07-13
JPS5614034A (en) * 1979-07-16 1981-02-10 Caterpillar Tractor Co Tube expander and its method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007237257A (en) * 2006-03-09 2007-09-20 Sumitomo Metal Ind Ltd Mechanical expander, and method for manufacturing seamless steel pipe
EP1992428A1 (en) * 2006-03-09 2008-11-19 Sumitomo Metal Industries Limited Mechanical expander and production method for seamless steel pipe
EP1992428A4 (en) * 2006-03-09 2013-03-06 Nippon Steel & Sumitomo Metal Corp Mechanical expander and production method for seamless steel pipe

Also Published As

Publication number Publication date
JPS637392Y2 (en) 1988-03-02

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