Title:
FLOODGATE
Document Type and Number:
WIPO Patent Application WO/2017/051481
Kind Code:
A1
Abstract:
In order to achieve a swing motion type retractable floodgate using a cost-effective torsion structure, the present invention is provided with a swing pivot support mechanism, a friction shoe, a door bottom support seat, and an operation step during a tidal flow. The support mechanism allows free rotation about three axes and restricts motion in the three axis directions, and a pulling force acts on the support mechanism. The friction shoe dissipates tidal energy during closing operations in a tidal flow to a level that prevents damage to the door. Reactive forces are endured by reducing impact forces with the flexibility and strength of the door bottom support seat. Suitable tidal energy dissipation is performed by selecting friction force strength in the operation step.
Inventors:
TERATA HIROSHI (JP)
TERATA HIROKO (JP)
KUKITA SHOKO (JP)
TERATA KEIICHI (JP)
TERATA YOKO (JP)
TERATA HIROKO (JP)
KUKITA SHOKO (JP)
TERATA KEIICHI (JP)
TERATA YOKO (JP)
Application Number:
PCT/JP2015/077164
Publication Date:
March 30, 2017
Filing Date:
September 25, 2015
Export Citation:
Assignee:
TERATA HIROSHI (JP)
TERATA HIROKO (JP)
TERATA HIROKO (JP)
International Classes:
E02B7/40
Foreign References:
| JP2003239263A | 2003-08-27 | |||
| JP2009084883A | 2009-04-23 | |||
| JP2013002250A | 2013-01-07 | |||
| JPS6290420A | 1987-04-24 |
Other References:
See also references of EP 3339513A4
Attorney, Agent or Firm:
OHKI, Kenichi (JP)
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