JPH01123420U

JPH01123420U -

Info

Publication number: JPH01123420U
Application number: JP1853488U
Authority: JP
Priority date: 1988-02-15
Filing date: 1988-02-15
Publication date: 1989-08-22

Description

[Brief explanation of the drawing]

第１図乃至第４図に示す図は、本考案を示す第
１実施側の図で、第１図は管の一部切切正面図、
第２図は要部の縦断面図、第３図は要部の分解説
明図、第４図は補強帯板の斜視図、第５図乃至第
８図は他の実施例を示す図で、第５図は要部の縦
断面図、第６図は第５図の分解説明図、第７図は
補強帯板の斜視図、第８図及び第９図は更に別の
実施例を示す要部の縦断面図及び補強帯板の斜視
図、第１０図は従来構造を示す要部の縦断面図で
ある。図中１は管壁、２は山頂部、３，４は側壁部、
５は谷部、６は補強帯板、５１は合成樹脂のみの
帯域、５２は凸曲面を示す。 The figures shown in FIGS. 1 to 4 are views of the first implementation side showing the present invention, and FIG. 1 is a partially cutaway front view of the pipe;
Fig. 2 is a longitudinal sectional view of the main part, Fig. 3 is an exploded explanatory view of the main part, Fig. 4 is a perspective view of the reinforcing strip, and Figs. 5 to 8 are diagrams showing other embodiments. FIG. 5 is a longitudinal sectional view of the main part, FIG. 6 is an exploded explanatory view of FIG. 5, FIG. 7 is a perspective view of the reinforcing strip, and FIGS. FIG. 10 is a longitudinal sectional view of the main part showing a conventional structure. In the figure, 1 is the tube wall, 2 is the mountain top, 3 and 4 are the side walls,
5 is a valley, 6 is a reinforcing band plate, 51 is a zone made only of synthetic resin, and 52 is a convex curved surface.

Claims

[Claims for Utility Model Registration] A cable protection pipe for underground burial with a pipe wall formed in a spiral wave shape, comprising a spiral wave-shaped peak portion 2 forming a pipe wall 1 and both side walls continuous to the peak portion 2. A reinforcing strip 6 made of a thin metal plate is disposed within the synthetic resin wall and is continuous with the parts 3 and 4 and a part of the valley part 5 located on the tube axis side of the side walls 3 and 4. In addition, the central part or the part biased to one side of the valley part 5 is formed as a zone 51 made only of synthetic resin material without the reinforcing strip plate 6, and furthermore, the inner surface side of the valley part 5 is formed with a convex curved surface 5 in cross section.
Voltage-resistant electric wire protection tube for underground burial formed in 2. The voltage-resistant electric wire protection tube for underground burial according to claim 1, wherein the reinforcing band plate 6 made of a thin metal plate is a band-shaped iron plate. A reinforcing band plate 6 made of a thin metal plate has a large number of small holes 7...
A voltage-resistant electric wire protection tube for underground burial according to claim 1, which is a punched metal having a through-hole. Pressure-resistant for underground burial according to claim 1, wherein the synthetic resin on both the inner and outer surfaces of the reinforcing strip 6 made of a thin metal plate is integrally fixed through a large number of small holes 7 formed in the reinforcing strip 6. Wire protection tube. The voltage-resistant electric wire protection tube for underground burial according to claim 1, wherein the zone 51 made of only synthetic resin material is formed in the center portion of the valley portion 5. A voltage-resistant electric wire protection tube for underground burial according to claim 1, wherein the zone 51 made of only a synthetic resin material is formed in a portion biased to one side of the valley portion 5. A voltage-resistant electric wire protection tube for underground burial according to claim 1, wherein the synthetic resin material is polyolefin-based or vinyl chloride-based.