JPS5583686A - Earth carrying ship - Google Patents

Earth carrying ship

Info

Publication number
JPS5583686A
JPS5583686A JP15667078A JP15667078A JPS5583686A JP S5583686 A JPS5583686 A JP S5583686A JP 15667078 A JP15667078 A JP 15667078A JP 15667078 A JP15667078 A JP 15667078A JP S5583686 A JPS5583686 A JP S5583686A
Authority
JP
Japan
Prior art keywords
floating
door
weight
ship
body door
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
JP15667078A
Other languages
Japanese (ja)
Inventor
Yuuichi Harakawa
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.)
WATANABE SEIKOSHO KK
WATANABE STEEL WORKS
Original Assignee
WATANABE SEIKOSHO KK
WATANABE STEEL WORKS
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 WATANABE SEIKOSHO KK, WATANABE STEEL WORKS filed Critical WATANABE SEIKOSHO KK
Priority to JP15667078A priority Critical patent/JPS5583686A/en
Publication of JPS5583686A publication Critical patent/JPS5583686A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To make it possible to open and close doors without using a drive means by making a floating-body doors hinged to the ship's slides open and close by their own weight and the buoyancy exerted thereon.
CONSTITUTION: When the ship is unloaded, only the lower end of floating-body door 18 is slightly dipped into the water. Since the buoyant force exerted on floating-body door 18 is smaller than its own weight W, floating-body door 18 is closed on the ship's body by its own weight W. When the ship is loaded with earth and sand to the full, almost all of floating-body door 18 submerges in the water; hence, the buoyant force exerted on floating-body door 18 becomes larger than its own weight W. Consequently, moment of the buoyant force F.l1, which tends to open floating-body door 18 becomes much greater than moment of the door's weight W, and further, the moment due to the pressure of earth and sand which tends to open the door operates. Hence, when sealing device 36 is unlocked, floating-body door 18 opens instantly.
COPYRIGHT: (C)1980,JPO&Japio
JP15667078A 1978-12-19 1978-12-19 Earth carrying ship Pending JPS5583686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15667078A JPS5583686A (en) 1978-12-19 1978-12-19 Earth carrying ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15667078A JPS5583686A (en) 1978-12-19 1978-12-19 Earth carrying ship

Publications (1)

Publication Number Publication Date
JPS5583686A true JPS5583686A (en) 1980-06-24

Family

ID=15632730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15667078A Pending JPS5583686A (en) 1978-12-19 1978-12-19 Earth carrying ship

Country Status (1)

Country Link
JP (1) JPS5583686A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002960A1 (en) * 1985-11-08 1987-05-21 Marusen Co., Ltd. Open-bottom gravel dump boat

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910288B1 (en) * 1968-12-18 1974-03-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910288B1 (en) * 1968-12-18 1974-03-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002960A1 (en) * 1985-11-08 1987-05-21 Marusen Co., Ltd. Open-bottom gravel dump boat

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