Title:
SLUICE GATE OPENING AND CLOSING DEVICE
Document Type and Number:
Japanese Patent JP2015129390
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a low cost sluice gate opening and closing device in which a looseness overload detection device is not enlarged even if an opening/closing load is large, and an expensive chain is not elongated.SOLUTION: A sluice gate opening and closing device includes a looseness overload detection device 13 for detecting a looseness and overload of a chain 12 by measuring a tensile change acting on the chain 12 to lift and lower a door 2 based on the movement of a detecting rod 27. The sluice gate opening and closing device has a chain support beam 53 for swingably supporting one end of the chain 12 through a chain connecting rod 51, and is provided with a chain terminal mechanism 50 having one end of the chain support beam 53 supported turnably and the other end connected to the detecting rod 27. A detection load of the looseness overload detection device 13 is reduced even if an opening/closing load is large. A portion of one end side of the chain 12 is replaced with the rod 51, and a chain length is reduced.
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Inventors:
SHITAMI KOJI
Application Number:
JP2014000951A
Publication Date:
July 16, 2015
Filing Date:
January 07, 2014
Export Citation:
Assignee:
HOKOKU KOGYO
International Classes:
E02B7/36; E02B7/20
Domestic Patent References:
| JP2012251404A | 2012-12-20 | |||
| JP2013234473A | 2013-11-21 |
Attorney, Agent or Firm:
Calyx
Miyazaki Yoshio
Akio Tagami
High Masahiro
Miyazaki Yoshio
Akio Tagami
High Masahiro
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