Title:
FLARE NUT
Document Type and Number:
Japanese Patent JP3289234
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable the connection to an external instrument while the internal pressure is maintained.
SOLUTION: A plug 10 is slidably inserted into a flare nut 3. A second seal surface 8 contacted with the outer peripheral surface of the plug 10 and a bore expansion part 9 whose internal diameter is larger than the external diameter of the plug 10 and smaller than the external diameter of a piping 2 in the side of the piping 2 apart from the second seal surface 8 are formed. The plug 10 is cylinder-shaped with flat top face, a reverse T-shaped hollow part is formed in its inside, and the top face opening in the top face 11 side and the outer periphery opening 15 in the outer periphery side are communicated by the hollow part. The outer periphery opening 15 is placed axially from the top face farther than the axial length of the second seal surface 8.
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Inventors:
Kiminari Kawamura
Yu Matsumoto
Yu Matsumoto
Application Number:
JP5739896A
Publication Date:
June 04, 2002
Filing Date:
March 14, 1996
Export Citation:
Assignee:
Yazaki Corporation
International Classes:
F16B37/00; F16K1/00; F16K3/24; (IPC1-7): F16K1/00; F16B37/00
Domestic Patent References:
| JP5166526A | ||||
| JP4815612U | ||||
| JP5119326U | ||||
| JP51124917U | ||||
| JP63188373U |
Attorney, Agent or Firm:
Tatsuyuki Unuma