Title:
CHANNEL OPENING/CLOSING DEVICE
Document Type and Number:
Japanese Patent JP2014015768
Kind Code:
A
Abstract:
To provide a channel opening/closing device that enables a valve member to reduce variations in behavior of a positioning member to the utmost.
A flush valve SV serving as a channel opening/closing device includes a first back-pressure chamber 14 that is arranged so as to make water pressure act on a valve body member 40, and a second back-pressure chamber 15 that is arranged so as to make the water pressure act on a positioning member 60 from the other side of an auxiliary back-pressure chamber 12. The second back-pressure chamber 15 is connected to a secondary-side channel 30 through the first back pressure chamber 14.
Inventors:
OSHIKAWA TAKUYA
SUEMATSU MASAMICHI
SARUWATARI HODAKA
SHIMAZOE MOTOHIDE
SUEMATSU MASAMICHI
SARUWATARI HODAKA
SHIMAZOE MOTOHIDE
Application Number:
JP2012153756A
Publication Date:
January 30, 2014
Filing Date:
July 09, 2012
Export Citation:
Assignee:
TOTO LTD
International Classes:
E03D3/04; F16K21/04
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toru Kamada
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toru Kamada
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