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Patent Searching and Data


Title:
PIPE JOINT
Document Type and Number:
WIPO Patent Application WO/2018/138997
Kind Code:
A1
Abstract:
Provided is a pipe joint equipped with a female joint that more reliably prevents leakage of fluid. This pipe joint, which is equipped with a female joint (12) and a male joint inserted into the female joint (12), is characterized in that the female joint (12) has a female joint main body (16), a distribution pipe (18) provided inside the female joint main body (16) and containing a first orifice (51), a sleeve (20) that moves in the axial direction between the female joint main body (16) and the distribution pipe (18), thereby opening/closing the first orifice (51), and an elastic part (15) that pushes the sleeve (20) toward the tip-end side of the female joint main body (16), the sleeve (20) includes a first seal portion (22) that provides a seal between the distribution pipe (18) and the sleeve when the first orifice (51) is closed, and the distribution pipe (18) includes a first seal surface that is sealed by the first seal portion (22), and a tapered surface that is slanted from a base-end side toward the first seal surface with respect to the axial direction.

Inventors:
SAGA SHUICHI (JP)
MATSUMOTO MASAFUMI (JP)
HAYASHI MASAFUMI (JP)
Application Number:
JP2017/039572
Publication Date:
August 02, 2018
Filing Date:
November 01, 2017
Export Citation:
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Assignee:
NITTA CORP (Postcode5560022, JP)
International Classes:
F16L37/34
Foreign References:
JPH11501715A1999-02-09
JP2013068286A2013-04-18
DE4114465A11991-11-07
EP0082922A11983-07-06
Attorney, Agent or Firm:
YOSHIDA Tadanori (Postcode1600023, JP)
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