Title:
COUPLING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/022008
Kind Code:
A1
Abstract:
Provided is a compact coupling device. This coupling device has a first joint 3 and a second joint 4. In the second joint 4, a sub valve chamber 27 and a main valve chamber 28 are formed so as to be continuous in the vertical direction. A sub valve member 33 is inserted into the sub valve chamber 27 so as to be movable in the vertical direction in a sealed manner. The sub valve member 33 is biased downward by a second valve-closing spring 40 against a sub valve seat 32 formed inside the sub valve chamber 27. A communication path 35 is formed in the sub valve member 33. The communication path 35 forms a part of a flow passage that causes the sub valve chamber 27 and the main valve chamber 28 to communicate.
Inventors:
ARISATO AKIRA (JP)
Application Number:
PCT/JP2022/029945
Publication Date:
February 23, 2023
Filing Date:
August 04, 2022
Export Citation:
Assignee:
KOSMEK LTD (JP)
International Classes:
F16L37/34; F16L37/35; F16L55/24
Foreign References:
| US20120241021A1 | 2012-09-27 | |||
| JP2006017196A | 2006-01-19 | |||
| JP2021102995A | 2021-07-15 | |||
| JP2000346266A | 2000-12-15 | |||
| JP2003117748A | 2003-04-23 | |||
| JPS6067042A | 1985-04-17 | |||
| JP2003117748A | 2003-04-23 |
Attorney, Agent or Firm:
KASEGUMA Tsuguhisa (JP)
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