JPS6448720A - Fish lifting device - Google Patents

Fish lifting device

Info

Publication number
JPS6448720A
JPS6448720A JP20419687A JP20419687A JPS6448720A JP S6448720 A JPS6448720 A JP S6448720A JP 20419687 A JP20419687 A JP 20419687A JP 20419687 A JP20419687 A JP 20419687A JP S6448720 A JPS6448720 A JP S6448720A
Authority
JP
Japan
Prior art keywords
air
fish
cylinder
air chamber
bubbles
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.)
Pending
Application number
JP20419687A
Other languages
Japanese (ja)
Inventor
Tomitoshi Yamada
Masakazu Yamamoto
Yukihiro Takato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Engineering and Shipbuilding Co Ltd
Takatori Seisakusho Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding Co Ltd
Takatori Seisakusho Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Engineering and Shipbuilding Co Ltd, Takatori Seisakusho Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Priority to JP20419687A priority Critical patent/JPS6448720A/en
Publication of JPS6448720A publication Critical patent/JPS6448720A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To protect fish bodies, construct a device in small size, and enable lifting of even small fish with a device to lift fish from the hold of a fishery boat by hanging a cylinder, which is made of a flexible material and equipped with air chamber around the bottom, by a hangdown rope, jetting air out of an air chamber, and thereby generating air bubbles. CONSTITUTION:A cylinder 4, which is made of a flexible material and equipped with air chamber 5 around its bottom, is hung underwater with a rope 18. At this time, adjustment is made using a weight so that the cylinder 4 does not float up. Then a blower is operated to supply compressed air a to the air chamber 5, and the air is jetted into the water out of a jet 10 so as to generate air bubbles b. These bubbles b make the apparent specific gravity of water smaller to produce upward stream of water within the cylinder 4, and thus air lift effect is generated. By this air lift effect, the fish is sucket to the opening to then rise within the cylinder 4. This protects fish bodies, enables lifting of even small fish, and allows making the device in small size.
JP20419687A 1987-08-19 1987-08-19 Fish lifting device Pending JPS6448720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20419687A JPS6448720A (en) 1987-08-19 1987-08-19 Fish lifting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20419687A JPS6448720A (en) 1987-08-19 1987-08-19 Fish lifting device

Publications (1)

Publication Number Publication Date
JPS6448720A true JPS6448720A (en) 1989-02-23

Family

ID=16486423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20419687A Pending JPS6448720A (en) 1987-08-19 1987-08-19 Fish lifting device

Country Status (1)

Country Link
JP (1) JPS6448720A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100418709C (en) * 2005-12-27 2008-09-17 中国科学院沈阳自动化研究所 A movable lifting point structure for strong operation underwater robot

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5418591A (en) * 1977-07-12 1979-02-10 Kyoei Zoki Kk Air pump type solid matter transfer device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5418591A (en) * 1977-07-12 1979-02-10 Kyoei Zoki Kk Air pump type solid matter transfer device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100418709C (en) * 2005-12-27 2008-09-17 中国科学院沈阳自动化研究所 A movable lifting point structure for strong operation underwater robot

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