JPS6079069U

JPS6079069U - double wall tube

Info

Publication number: JPS6079069U
Application number: JP17177083U
Authority: JP
Inventors: 岩田　正憲
Original assignee: タキロン株式会社
Priority date: 1983-11-04
Filing date: 1983-11-04
Publication date: 1985-06-01

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図は本発明の実施例による二重壁管の一部を切欠い
た側面図、第２図は第１図におけるＡ矢視図、第３図は
第１図におけるＢ矢視図、第４図は二本の二重壁管を突
き合わせたときの部分斜視図、第５図は二本の二重壁管
を直接接続したときの一部を切欠いて示す部分斜視図、
第６図は他の実施例による二重管の一部を切欠いた側面
図、第７図は接続用継手を二本の二重壁管の間に介在さ
せたときの部分斜視図、第８図は二重壁管の製造装置を
示す縦断面図、第９図は連続押出成形された成形品の一
部を示す縦断面図である。１・・・二重壁管、２・・・内壁、３・・・外壁、３ａ
・・・山部、３ｂ・・・谷部、４・・・差口、５・・・
受口、６・・・凸条、７・・・凹条。FIG. 1 is a partially cutaway side view of a double-walled pipe according to an embodiment of the present invention, FIG. 2 is a view taken along arrow A in FIG. 1, and FIG. 3 is a view taken along arrow B in FIG. Figure 4 is a partial perspective view when two double-walled pipes are butted together; Figure 5 is a partial perspective view with a portion cut away when two double-walled pipes are directly connected;
Fig. 6 is a partially cutaway side view of a double-walled pipe according to another embodiment, Fig. 7 is a partial perspective view when a connecting joint is interposed between two double-walled pipes, and Fig. 8 The figure is a longitudinal cross-sectional view showing a double-walled pipe manufacturing apparatus, and FIG. 9 is a longitudinal cross-sectional view showing a part of a molded product that has been continuously extruded. 1...Double wall pipe, 2...Inner wall, 3...Outer wall, 3a
... Mountain part, 3b... Valley part, 4... Junction, 5...
Socket, 6... Convex line, 7... Concave line.

Claims

[Scope of utility model registration request]

In a double-walled pipe in which a cylindrical inner wall is fixed to the inner surface of an outer wall having alternating annular peaks and troughs, a spiral protrusion or recess is formed on the spigot or socket formed at the end of the outer wall. A double-walled pipe characterized by integrally provided strips.