JPS5555711A - No-power automatic open/close gate - Google Patents
No-power automatic open/close gateInfo
- Publication number
- JPS5555711A JPS5555711A JP12891378A JP12891378A JPS5555711A JP S5555711 A JPS5555711 A JP S5555711A JP 12891378 A JP12891378 A JP 12891378A JP 12891378 A JP12891378 A JP 12891378A JP S5555711 A JPS5555711 A JP S5555711A
- Authority
- JP
- Japan
- Prior art keywords
- gate
- cylinder
- lifted
- opening
- water level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Barrages (AREA)
Abstract
PURPOSE: To provide a stepwise opening of the gate under no-man and no-power condition in response to a rising of the water level by sensing an excessive water level, opening the gate by a main cylinder and restricting an opening of the gate by a regulating cylinder.
CONSTITUTION: When a level of upstram of the gate 11 is risen, the float 1 is also lifted, the sprocket 7 is rotated and the chain 8 is lifted. The cam plate 9 is lifted to release the check valves 20B and 20D. Oil in the pressurized chamber 13 of the main cylinder 12 is flowed into the chamber 19 of the regulating cylinder 17 and moves teh piston 22 in a rightward direction. Opening operation of the main cylinder 12 and the gate 11 is temporarily terminated. That is, the gare 11 shows an opening operation by a distance corresponding to a capacity of the cylinder 17. Then, when the water level 01 is to be lifted, the cam 10' is operated by the cam plate 9' to release the check valves 20A and 20C to move the piston 22 in a leftward direction. The gate 11 is further opened by a distance corresponding to one stroke of the cylinder 17.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12891378A JPS5555711A (en) | 1978-10-19 | 1978-10-19 | No-power automatic open/close gate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12891378A JPS5555711A (en) | 1978-10-19 | 1978-10-19 | No-power automatic open/close gate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5555711A true JPS5555711A (en) | 1980-04-23 |
JPS572851B2 JPS572851B2 (en) | 1982-01-19 |
Family
ID=14996456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12891378A Granted JPS5555711A (en) | 1978-10-19 | 1978-10-19 | No-power automatic open/close gate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5555711A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5782853A (en) * | 1980-11-11 | 1982-05-24 | Canon Inc | Developing method |
JP2013189795A (en) * | 2012-03-13 | 2013-09-26 | Kyowa Seisakusho:Kk | Hydraulic control circuit of derricking type automatic gate equipment |
-
1978
- 1978-10-19 JP JP12891378A patent/JPS5555711A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5782853A (en) * | 1980-11-11 | 1982-05-24 | Canon Inc | Developing method |
JP2013189795A (en) * | 2012-03-13 | 2013-09-26 | Kyowa Seisakusho:Kk | Hydraulic control circuit of derricking type automatic gate equipment |
Also Published As
Publication number | Publication date |
---|---|
JPS572851B2 (en) | 1982-01-19 |
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