Title:
HELICALLY CORRUGATED SYNTHETIC RESIN PIPE WITH JOINT, AND STRUCTURE FOR CONNECTING HELICALLY CORRUGATED SYNTHETIC RESIN PIPES
Document Type and Number:
WIPO Patent Application WO/2012/153397
Kind Code:
A1
Abstract:
Provided are a helically corrugated synthetic resin pipe with a joint, and a structure for connecting helically corrugated synthetic resin pipes, which enable weight and cost reductions and simplification of handling and connection work in the field by a simple structure having a small number of components and provided with sufficient water resistance and pressure resistance and good sealing property without needing a firm material and high accuracy. A helically corrugated synthetic resin pipe with a joint is provided with a socket part (4) for connecting helically corrugated synthetic resin pipes to each other at the end thereof, and is characterized in that the socket part (4) cylindrically extending in a pipe axis direction from the end of the helically corrugated synthetic resin pipe is formed from foamable resin, and an FRP layer (8a) formed by impregnating reinforcing fiber with resin is formed on at least the outer peripheral surface of the connection-side end of the formed socket part.
Inventors:
KANAO SHIGEKI (JP)
Application Number:
PCT/JP2011/060783
Publication Date:
November 15, 2012
Filing Date:
May 10, 2011
Export Citation:
Assignee:
KANAFLEX CORP (JP)
KANAO SHIGEKI (JP)
KANAO SHIGEKI (JP)
International Classes:
F16L9/06; F16L33/00; F16L33/28
Foreign References:
| JP2010139062A | 2010-06-24 | |||
| JP2002139178A | 2002-05-17 | |||
| JP2001221390A | 2001-08-17 | |||
| JP2602515Y2 | 2000-01-17 | |||
| JPH06101396A | 1994-04-12 | |||
| JPS567109B2 | 1981-02-16 | |||
| JP2002139178A | 2002-05-17 | |||
| JP2009053266A | 2009-03-12 |
Other References:
See also references of EP 2708789A4
Attorney, Agent or Firm:
UEKI, Kyuichi et al. (JP)
Hisakazu Ueki (JP)
Hisakazu Ueki (JP)
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Claims: