JPH0314921U

JPH0314921U -

Info

Publication number: JPH0314921U
Application number: JP7365289U
Authority: JP
Priority date: 1989-06-23
Filing date: 1989-06-23
Publication date: 1991-02-14

Description

[Brief explanation of the drawing]

第１図は本考案の地中埋設用可撓管の一実施例
における可撓管本体を作る帯状体を示す斜視図、
第２図は本考案の地中埋設用可撓管の一実施例を
示す縦断面図、第３図は本考案の地中埋設用可撓
管の他の実施例における可撓管本体を作る帯状体
を示す斜視図、第４図は本考案の地中埋設用可撓
管の他の実施例を示す縦断面図、第５図ａ，ｂは
第２図及び第４図の地中埋設用可撓管の一部変更
例を示す要部断面図、第６図ａ，ｂは第２図及び
第４図の地中埋設用可撓管の可撓管本体を構成す
る帯状体の変更例を示す図、第７図は従来の地中
埋設用の金属製可撓管を示す縦断面図である。１０，１０′……係合部、１１，１１′……係
止片、１２，１２′……帯状体、１３，１３′…
…可撓管本体、１４，１４′……合成樹脂被覆、
１５，１５′……軟質の合成樹脂被覆、１６，１
６′……地中埋設用可撓管。 FIG. 1 is a perspective view showing a band-like body forming a flexible pipe body in an embodiment of the underground flexible pipe of the present invention;
Fig. 2 is a vertical cross-sectional view showing one embodiment of the flexible pipe for underground burial of the present invention, and Fig. 3 shows the construction of a flexible pipe body in another embodiment of the flexible pipe for underground burial of the present invention. FIG. 4 is a vertical cross-sectional view showing another embodiment of the flexible pipe for underground burial of the present invention, and FIGS. Figures 6a and 6b are cross-sectional views of main parts showing examples of partial changes to flexible pipes for underground use, and are changes to the band-like body constituting the flexible pipe body of the flexible pipes for underground burial shown in Figures 2 and 4. An example is shown in FIG. 7, which is a vertical cross-sectional view showing a conventional metal flexible pipe for underground burial. 10, 10'... Engaging portion, 11, 11'... Locking piece, 12, 12'... Band-shaped body, 13, 13'...
...Flexible tube body, 14, 14'...Synthetic resin coating,
15,15'...Soft synthetic resin coating, 16,1
6'...Flexible pipe for underground burial.

Claims

[Scope of utility model registration request]

A metal strip having a U-shaped or inverted U-shaped cross section, a U-shaped or inverted U-shaped engagement part on the outside of one end, and a locking piece on the outside of the other end is spirally shaped. After being rolled up, a locking piece is fitted and locked into a U-shaped engagement portion at a peak or valley to form a flexible tube body, and a synthetic resin coating is applied to the entire outer peripheral surface of the flexible tube body, A flexible tube for underground burial, which has a soft synthetic resin coating applied to the inner peripheral surface of the trough of the flexible tube body.