Title:
【発明の名称】フラットバルブ装置
Document Type and Number:
Japanese Patent JP3504945
Kind Code:
B1
Abstract:
A flat valve device of a smaller size which can complete easy and swift air evacuation, in which the airtightness of a gas-containing structure and the operational safety can be improved, requiring no extra parts. The flat valve device includes a circular frame member 3 to be mounted on the opening of a gas-containing structure 2, a round body member 4 to be removably screwed to the inner peripheral surface 4d of the circular frame member 3, and a valve 6 provided in a valve accommodating space of the round body member 4. The round body member 4 is provided with an outward-facing through hole 4e and an inward-facing through hole 4f, while the valve 6 includes a sealing cover 6a and an energizing member 6b. The round body member 4 has a circular recess 4b and a rotating cover 5 to be rotatably pressed thereon, and the outward-facing through hole 4e is prepared off the center of the circular recess 4b, and the rotating cover 5 includes a gas injection hole 5b with the degree of eccentricity identical to that of the outward-facing through hole 4e.
Inventors:
Kohei Nakamura
Application Number:
JP2003168506A
Publication Date:
March 08, 2004
Filing Date:
June 12, 2003
Export Citation:
Assignee:
Kohei Nakamura
International Classes:
F16K24/00; F16K15/14; F16K15/18; F16K15/20; (IPC1-7): F16K15/14; F16K15/18; F16K24/00
Domestic Patent References:
| JP949515A | ||||
| JP6044668A | ||||
| JP200222042A | ||||
| JP2002235719A | ||||
| JP2001153103A | ||||
| JP3117857U | ||||
| JP718614Y2 |
Other References:
【文献】登録実用新案3073899(JP,U)
Attorney, Agent or Firm:
Shingo Sagawa