Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FLAP GATE
Document Type and Number:
Japanese Patent JP2015105566
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a flap gate for extremely reducing water leakage to the internal water side of external water, hardly generating noise, and without disturbing even a water flow.SOLUTION: A flap gate comprises a door body 7 rockably supported in the internal-external water directions in a drain port 2 of an irrigation channel 1 and freely rockable between a lower rocking position D for closing the drain port 2 in the internal water direction by separating a drain clearance S and upper rocking positions U1-U3 for opening the drain port 2 in the external water direction, and comprises an internal water side link 4 rockably connected by an internal water side first connection shaft 5 to a support girder 3 provided in the irrigation channel 1 and installing a balance weight 6 in an upper end part on the external water side more than an internal water side first connection shaft 5, the door body 7 having an internal water side upper end part rockably connected by an internal water side second connection shaft 9 to a lower end part of the internal water side link 4 and a float 10 provided in a lower part on the external water side of the door body 7.

Inventors:
HANDA HIDEAKI
Application Number:
JP2013249886A
Publication Date:
June 08, 2015
Filing Date:
December 03, 2013
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MARSIMA AQUA SYSTEM CORP
International Classes:
E02B7/44
Domestic Patent References:
JP5203536B12013-06-05
JP2013096122A2013-05-20
JPH02101821U1990-08-14
JPH11269857A1999-10-05
JP2001348846A2001-12-21
JP2006077389A2006-03-23
JP2004107995A2004-04-08
JPS5456434U1979-04-19
JPS4748740B1
Foreign References:
KR20120124750A2012-11-14
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Yoshio Asano