Title:
ワイヤロープウインチ式のゲート開閉装置
Document Type and Number:
Japanese Patent JP6870820
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a gate opening and closing apparatus of a wire rope winch type which can be operated even when the power supply is lost, and is simple and compact in structure.SOLUTION: A gate opening and closing apparatus S1 comprises: a door body 2 which opens and closes a water gate 1; a wire rope 3 which suspends the door body 2; a rotatable wire drum 4 which winds the wire rope 3; a speed reducer 8; an electric motor 25; a hydraulic motor 29; and a hydraulic circuit C1. The speed reducer 8 has an input shaft 11, an output shaft 9, and a gear mechanism. The electric motor 25 is connected to the input shaft 11, and has an electric motor rotating shaft which rotationally drives the input shaft 11. The hydraulic motor 29 is connected to a first intermediate shaft 12 of the gear mechanism and has a hydraulic motor rotating shaft 31 which rotationally drives the first intermediate shaft 12 or is rotationally driven by the first intermediate shaft 12. The hydraulic circuit C1 circulates a hydraulic fluid between the hydraulic motor 29 and a hydraulic fluid storage tank 34 which stores the hydraulic fluid.SELECTED DRAWING: Figure 1
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Inventors:
Yoshifumi Fujino
Haraguchi Kazumi
Haraguchi Kazumi
Application Number:
JP2016252950A
Publication Date:
May 12, 2021
Filing Date:
December 27, 2016
Export Citation:
Assignee:
Incorporated administrative agency Water Resources Organization
U-Tech Co., Ltd.
U-Tech Co., Ltd.
International Classes:
E02B7/36; E02B7/20
Domestic Patent References:
| JP2014047471A | ||||
| JP2016108919A | ||||
| JP2012159154A | ||||
| JP2012197625A | ||||
| JP2012237123A | ||||
| JP48022430U | ||||
| JP57110123U | ||||
| JP2013050019A |
Foreign References:
| US20030026660 |
Attorney, Agent or Firm:
Takuji Yamada
Mitsuo Tanaka
Haruo Nakano
Mitsuo Tanaka
Haruo Nakano