Title:
PIPE
Document Type and Number:
WIPO Patent Application WO/2015/037448
Kind Code:
A1
Abstract:
The purpose of the present invention is to enable the wear state of the inner surface of a pipe and the state of flow inside the pipe to be visually recognizable by means of a simple construction. A wire-like or strip-like colored wear detection unit (2), which partially covers a portion of a transparent pipe (1) in the circumferential direction along the entire length in the interior of the pipe (1), is embedded in the pipe (1) on the inside of the center position in the thickness direction. Thus, the wear detection unit (2) is worn away in accordance with the degree of wear of the inner surface (1a) of the pipe (1), and the worn state of the wear detection unit (2) can be visually recognized from outside of the pipe (1) through a first transparent region (11) of the pipe body (1) arranged on the outside of the wear detection unit (2). At the same time the interior of the pipe body (1) can be visually recognized from outside of the pipe body (1) through a second transparent region (12) of the pipe body (1) in which the wire-like or strip-like wear detection unit (2) is not arranged.
Inventors:
TOKUNO SHINICHI (JP)
NAKASE TAKAHIKO (JP)
NAKASE TAKAHIKO (JP)
Application Number:
PCT/JP2014/072561
Publication Date:
March 19, 2015
Filing Date:
August 28, 2014
Export Citation:
Assignee:
TOYOX KK (JP)
International Classes:
F16L11/12; F16L11/08
Domestic Patent References:
| WO2011033796A1 | 2011-03-24 |
Foreign References:
| JP2007078008A | 2007-03-29 | |||
| JP2010138991A | 2010-06-24 |
Attorney, Agent or Firm:
EICHI Patent & Trademark Corp. (JP)
Patent business corporation Wisdom international patent firm (JP)
Patent business corporation Wisdom international patent firm (JP)
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