Pipe regeneration member

JP2025013079AInactive Publication Date: 2025-01-24猿川 雅章
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Patent Information

Application Number
JP2023126607
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-07-14
Publication Date
2025-01-24
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Benefits of technology

【0003】 本発明は、管更生部材の強度を高めるために、先ず、シングル編み(天竺編み)において、編み目に添え糸(高強度のインレイ糸)を挿入し、横伸びの少ない編み地を製作し、該編み地に合成樹脂を含侵させるという手段を講じて問題を解決した。ダブル編み(ゴム編み)において、上編み目(上針)と下編み目(下針)との間に添え糸(高強度のインレイ糸)を挿入して横伸びの少ない編み地を製作し、該編み地に合成樹脂を含侵させるという手段を講じて問題を解決した。

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Abstract

To provide a high-strength pipe regeneration member.SOLUTION: A high-strength pipe regeneration member comprises inserting an inlay yarn (high-strength inlay yarn) into stitches in a single knit (plain stitch) to produce a knitted fabric with low lateral extension, and impregnating the knitted fabric with a synthetic resin. Additionally, the high-strength pipe regeneration member comprises inserting the inlay yarn (high-strength inlay yarn) between upper stitches (upper needles) and lower stitches (lower needles) in a double knit (rib stitch) to produce a knitted fabric with low lateral extension, and impregnating the knitted fabric with a synthetic resin.SELECTED DRAWING: None
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Description

Detailed Description of the Invention [Technical field]

[0001] The present invention realizes a high-strength pipe rehabilitation member. [Background technology]

[0002] Conventionally, ordinary knitted fabrics (terry knit, plain knit, rib knit) were not strong enough to be used as tubes due to the inherent stretchiness of knits. Therefore, we invented a knitted fabric with less stretch by inserting high-strength inlay yarn. DISCLOSURE OF THEINVENTION [Means for solving the problem]

[0003] In the present invention, in order to increase the strength of the pipe rehabilitation member, first, in single knitting (plain knitting), a splice yarn (high-strength inlay yarn) is inserted between the stitches to produce a knitted fabric with little lateral stretch, and then the knitted fabric is impregnated with synthetic resin, thereby solving the problem. In double knitting (ribbed knitting), a splice yarn (high-strength inlay yarn) is inserted between the upper stitch (upper needle) and the lower stitch (lower needle) to produce a knitted fabric with little lateral stretch, and then the knitted fabric is impregnated with synthetic resin, thereby solving the problem. EXAMPLES

[0004] The present invention is embodied in the following two forms. First, in single knitting (plain knitting), a supplementary yarn (high-strength inlay yarn) is inserted into the stitches to produce a knitted fabric with little lateral stretch, and the knitted fabric is impregnated with synthetic resin to increase its strength. In double knitting (ribbed knitting), a supplementary yarn (high-strength inlay yarn) is inserted between the upper stitch (upper needle) and the lower stitch (lower needle) to produce a knitted fabric with little lateral stretch, and the knitted fabric is impregnated with synthetic resin to increase its strength. In both methods, the strength was increased by inserting a supplementary yarn (high-strength inlay yarn) to impregnate the fabric with synthetic resin and hardening it. [Industrial Applicability]

[0005] The funds will be used to rehabilitate deteriorated water supply and sewerage pipes.

Claims

1. A pipe rehabilitation component in which a supplementary yarn (high-strength inlay yarn) is inserted into the stitches of a single knit (plain knit) to produce a knitted fabric with little lateral stretch, and the knitted fabric is impregnated with synthetic resin to increase its strength.

2. This pipe rehabilitation member has a high strength and is made by inserting a supplementary yarn (high strength inlay yarn) between the upper stitch (upper needle) and the lower stitch (lower needle) in double knitting (ribbed knitting) to produce a knitted fabric with little lateral stretch, and impregnating the knitted fabric with synthetic resin to increase its strength.

Citation Information

Patent Citations

  • Process for lining a pipeline or a duct

    CN101848800A

  • Lining material for pipeline

    JP1996057957A

  • Tube substrate for lining inner surface of pipe conduit

    JP2001329446A

  • Cylindrical regenerated material

    JP2002225136A

  • Reinforcing fiber sheet

    JP2017095841A

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