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Patent Searching and Data


Title:
FLAP GATE
Document Type and Number:
Japanese Patent JP2015086508
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a flap gate in which engagement of counter weights and engagement members can be released manually and easily in a short time and can also be released automatically by flowing in of water from the sea side, and with the release of the engagement, a gateway can be made into a closed state by applying a load to a door body of the gateway in an open state.SOLUTION: A flap gate includes: a door body 1; counter weights 2 for applying a load to the door body 1; and actuation members 4 for actuating the counter weights 2. The door body 1 rotates in a range from a position in a lodging state to a position in a standing state of closing a gateway 112. Each actuation member 4 includes: an engagement member 41 for being detachably engaged with the counter weight 2; and a float 42 joined to the engagement member 41 and the counter weight 2. The engagement member 41 can be released from engagement with the counter weight 2 by a manual engagement release operation, and can also be released from engagement with the counter weight 2 by float-up movement of the float 42.

Inventors:
HANDA HIDEAKI
KAWAHARA MITSUTERU
Application Number:
JP2013222951A
Publication Date:
May 07, 2015
Filing Date:
October 28, 2013
Export Citation:
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Assignee:
MARSIMA AQUA SYSTEM CORP
International Classes:
E02B7/40; E06B5/00
Domestic Patent References:
JP2013199792A2013-10-03
JP2006257829A2006-09-28
JP2006299754A2006-11-02
Foreign References:
US20060250258A12006-11-09
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Yoshio Asano