JPS58177221U

JPS58177221U - Core for inserting into pipe body

Info

Publication number: JPS58177221U
Application number: JP7544382U
Authority: JP
Inventors: 正服部
Original assignee: 東京貿易株式会社
Priority date: 1982-05-21
Filing date: 1982-05-21
Publication date: 1983-11-26
Also published as: JPS5932489Y2

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図は中子本体を示し、イは管軸方向断面図、口は側
面図、ハはイのＡ部拡大図。第２図は操作杆の半裁縦断
面図。第３図は中子本体の管体への一挿入状態を示し、
イは管軸方向断面図、口はイのＢ−Ｂ線断面図。第４図
は操作杆の挿入時を示す　　　、管軸方向断面図。第５
図は操作杆の挿入完成状態を示し、イは管軸方向断面図
、口はイのＤ−Ｄ線断面図。第６図は管体外周面に刃先
を接合した状態を示し、イは管軸方向断面図、口はイの
Ｅ−Ｅ線断面図、ハはイの要部拡大断面図。第７図は溝
・切り時を示す管体の要部拡大断面図。第８図は溝切り
後、刃先を管体外周面から離脱させた状態の要部拡大断
面図。第９図は操作杆抜取後の管体の要部拡大断面図。１・・・・・・中子本体、５・・・・・・逃げ凹部、１
２・・・・・・操作杆、１３・・・・・・先端部、１８
・・・・・・管体、２７・・・・・・溝部、２８・・・
・・・肉盛部。第２図Ｊ　　　　　　　　　　　（／　　　　）　　　バー１
６　　１２　　１３１４１５第４図１４　　　９　−Fig. 1 shows the core body, A is a sectional view in the tube axis direction, the opening is a side view, and C is an enlarged view of part A of A. Figure 2 is a half-cut vertical cross-sectional view of the operating rod. Figure 3 shows a state in which the core body is inserted into the tube body,
A is a sectional view in the tube axis direction, and the opening is a sectional view taken along the line B-B of A. FIG. 4 is a cross-sectional view in the tube axis direction showing when the operating rod is inserted. Fifth
The figure shows a state in which the operating rod has been inserted, A is a cross-sectional view in the tube axis direction, and the opening is a cross-sectional view taken along line D-D of A. FIG. 6 shows a state in which the cutting edge is joined to the outer circumferential surface of the tube, where A is a sectional view in the tube axis direction, the opening is a sectional view taken along line E-E of A, and C is an enlarged sectional view of the main part of A. FIG. 7 is an enlarged cross-sectional view of the main part of the tube body showing grooves and cutting. FIG. 8 is an enlarged cross-sectional view of the main part in a state where the cutting edge is removed from the outer peripheral surface of the tube after grooving. FIG. 9 is an enlarged sectional view of the main part of the tube body after the operating rod is removed. 1... Core body, 5... Relief recess, 1
2...Operating rod, 13...Tip, 18
...Pipe body, 27...Groove, 28...
...Filled part. Figure 2 J (/) Bar 1
6 12 131415 Figure 4 14 9 -

Claims

[Scope of utility model registration request]

It can be inserted into the pipe body 18, and is divided into at least two parts in the direction of the pipe axis, and has a number corresponding to the number of grooves 27 formed in the pipe body 18 on its outer circumferential surface, and has grooves at corresponding positions. 1B A core body 1 in which an escape recess 5 is formed for fitting the built-up part 28 that bulges out on the inner circumferential surface of the tube body 18 during groove cutting.
The tip portion 13 can be inserted into the core body 1, and the outer circumferential surface of the core body 1 is pressed against the inner circumferential surface of the tube body 18 by the rotational force of the pushing camera when the tip portion 13 is inserted. and an operating rod 12 configured such that the outer circumferential surface of the core body 1 can be detached from the inner circumferential surface of the tube body 18 when the tip portion 13 is extracted from the core body 1. A core for insertion into a tube body characterized by: