Title:
PRESSURE PIPE CONNECTION METHOD AND METHOD FOR CONSTRUCTING PRESSURE PIPE WITH FLANGE
Document Type and Number:
WIPO Patent Application WO/2017/042874
Kind Code:
A1
Abstract:
Provided is a pressure pipe connection structure that reduces the man-hours for machining the pressure pipes and does not require high machining precision. Multiple arc members 5a, 5b form a ring shape that makes a circle by matching the end faces thereof 50a, 50b to each other. Non-penetrating holes 53 are provided on the outer circumference of the arc members 5a, 5b. The ring formed by the multiple arc members 5a, 5b has an inner diameter that is smaller than the outer diameter and larger than the inner diameter of a pressure pipe 2. A cylindrical sleeve 1 has: an inner cylinder surface 11a inside which the entire outer circumferences of arc members 5a, 5b are fitted into a hollow internal space 10, into which respective pressure pipes 2 are inserted from opposing entrances; and multiple through holes 12, which penetrate from the outside and are provided with female thread ridges. The pressure pipes 2 are cut to a same length that is suited to the placement site and grooves 23 are cut. The arc members 5a, 5b are fitted into the grooves 23, the arc members 5a, 5b are positioned on an inner cylinder surface 11a by inserting the pressure pipes 2 into a sleeve 1, the respective through holes and non-penetrating holes are made to communicate with each other, and the pressure pipes are fixed using bolts 4.
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| JP2001090895 | RESIN PIPE CONNECTOR |
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Inventors:
KOBAYASHI MASATO (JP)
Application Number:
PCT/JP2015/075383
Publication Date:
March 16, 2017
Filing Date:
September 08, 2015
Export Citation:
Assignee:
NIHONKANSEN KOGYO KK (JP)
International Classes:
F16L21/08; F16L23/024
Domestic Patent References:
| WO2013118346A1 | 2013-08-15 |
Foreign References:
| JP48592Z1 | ||||
| JP5646653B2 | 2014-12-24 | |||
| JPS5962790A | 1984-04-10 |
Other References:
See also references of EP 3348890A4
Attorney, Agent or Firm:
KASEGUMA Tsuguhisa (JP)
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