EP0414320A1 - Bossoir basculant pour canots de sauvetage - Google Patents

Bossoir basculant pour canots de sauvetage Download PDF

Info

Publication number
EP0414320A1
EP0414320A1 EP90202236A EP90202236A EP0414320A1 EP 0414320 A1 EP0414320 A1 EP 0414320A1 EP 90202236 A EP90202236 A EP 90202236A EP 90202236 A EP90202236 A EP 90202236A EP 0414320 A1 EP0414320 A1 EP 0414320A1
Authority
EP
European Patent Office
Prior art keywords
davit
raft
arm
board
outboard
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.)
Withdrawn
Application number
EP90202236A
Other languages
German (de)
English (en)
Inventor
Jacobus Van Drunen
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.)
SCHAT-DAVIT Co BV
Original Assignee
SCHAT-DAVIT Co BV
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 SCHAT-DAVIT Co BV filed Critical SCHAT-DAVIT Co BV
Publication of EP0414320A1 publication Critical patent/EP0414320A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B23/00—Equipment for handling lifeboats or the like
    • B63B23/02—Davits, i.e. devices having arms for lowering boats by cables or the like
    • B63B23/04—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type

Definitions

  • This invention relates to a davit movable relative to a board or a side of a ship or offshore rig between an inboard rest position and an outboard operative position for lowering a life raft, in particular an inflatable raft, by means of a winch.
  • life rafts are required by regulations to be lowered by means of a davit. All known life raft davits are moved into the outboard position by means of some drive, mechanical, hydraulic or electric, to lower successive rafts.
  • the davit comprises a davit arm mounted on a shaft located in­wardly of said board or side, for pivoting movement between said inboard position and said outboard position, and arranged so that in the inboard position, the centre of gravity of the davit arm is located outboard of said shaft.
  • the invention is based on the insight that, by selecting a tilting davit arm with this location of its centre of grav­ity, the arm will always be loaded so as to be biased to move to its outboard position, so that it can tilt through gravity, and driving devices hitherto required for this purpose can be done without.
  • the davit is not only simpler, but also more reliable in operation.
  • the davit arm has the form of a bell crank lever journalled on said shaft at the free end of one of the lever arms.
  • both lever arms In the rest position, both lever arms are in an inboard position, and in the operative position one lever arm rests on the board side deck of a ship or offshore structure, while the other lever arm extends in an obliquely upward outboard position.
  • the davit arm in the inboard position, rests through a support on a stand, which support is removable from the tilting path of the davit arm to its out­board position.
  • the davit arm In the tilting life raft davit according to the inven­tion, the davit arm is locked in its inboard position by the removable support, so that the winch and the winch cable are unloaded. Unlocking is preferable done by tensioning the winch rope, which will also prevent or remove any slack in the rope, and after unlocking the pivot arm can be tilted outboard in a controlled manner for lowering an inflatable life raft.
  • an inflatable raft stored in a container, is secured to a self-releasing hook, and the container is opened in a suitable way.
  • the inflated raft is then hanging next to the side of the ship or offshore structure in such a position that it can be manned.
  • the raft is paid out by a person at the davit. Uncoupling is done from the lowered raft, for which use is made of an automatic release hook.
  • the last man to leave the ship or offshore structure can operate the winch to allow the rope to pay off, through remote control from the raft hanging next to the board or side, so that the raft is lowered through gravity.
  • the davit comprises an arm 2 in the form of a bell crank lever with a shorter lever arm 3 and a longer lever arm 4.
  • the davit arm is mounted for pivot­ing movement on a shaft 5 and, in the rest position shown in solid lines in Fig. 1, rests on a support pin 6 in a stand 7.
  • a winch 8 the rope 9 of which is passed over the head 10 of davit arm 2, and is equipped with a self-releasing hook 11, which in the rest position of the davit arm is positioned within arm's reach on the shorter lever arm 3 of davit arm 2, and is locked by means of a hook 14.
  • a container not shown with an inflatable life raft 12 is secured to the self-release hook 11, and put overboard while the container is opened.
  • the inflated raft occupies the posi­tion shown in dot-dash outline in Fig. 1 next to side 1, and can be manned and lowered by giving slack to winch rope 9.
  • hook 11 can be uncoupled, which is a simple matter with a so-called self-release hook, which can thereafter rapidly be raised, and the procedure described above can be repeated.
  • the last man has boarded a raft, he takes along a remote control line 13 to operate winch 8 from raft 12 to give slack, so that the last raft, too can be lowered through gravity.
EP90202236A 1989-08-21 1990-08-20 Bossoir basculant pour canots de sauvetage Withdrawn EP0414320A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8902104A NL8902104A (nl) 1989-08-21 1989-08-21 Kantelbare reddingsvlot-davit.
NL8902104 1989-08-21

Publications (1)

Publication Number Publication Date
EP0414320A1 true EP0414320A1 (fr) 1991-02-27

Family

ID=19855189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90202236A Withdrawn EP0414320A1 (fr) 1989-08-21 1990-08-20 Bossoir basculant pour canots de sauvetage

Country Status (4)

Country Link
EP (1) EP0414320A1 (fr)
FI (1) FI904146A0 (fr)
NL (1) NL8902104A (fr)
NO (1) NO903672L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102381446A (zh) * 2011-08-23 2012-03-21 浙江恒信船舶设备有限公司 连体式救生艇降放装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE143918C (fr) *
NL104934C (fr) * 1900-01-01
GB191513461A (en) * 1915-09-22 1916-09-14 Waller & Co Ltd Improvements in Apparatus for Raising & Lowering Ships Boats and for other purposes.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE143918C (fr) *
NL104934C (fr) * 1900-01-01
GB191513461A (en) * 1915-09-22 1916-09-14 Waller & Co Ltd Improvements in Apparatus for Raising & Lowering Ships Boats and for other purposes.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SHIPBUILDING AND SHIPPING RECORD, vol. 87, no. 1, 5th January 1956, pages 11-13; "New type of ships' gravity davit" *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102381446A (zh) * 2011-08-23 2012-03-21 浙江恒信船舶设备有限公司 连体式救生艇降放装置

Also Published As

Publication number Publication date
FI904146A0 (fi) 1990-08-21
NO903672L (no) 1991-02-22
NO903672D0 (no) 1990-08-21
NL8902104A (nl) 1991-03-18

Similar Documents

Publication Publication Date Title
GB2150903A (en) Method and assembly for launching or retrieving a lifeboat
US4271553A (en) System for launching and hauling in objects from the sea
CA1150335A (fr) Dispositif decrocheur
EP1327578A1 (fr) Manutention d'un canot de sauvetage
EP0414320A1 (fr) Bossoir basculant pour canots de sauvetage
US4348043A (en) Disengaging apparatus
CN212313803U (zh) 一种液压重力倒臂式救生艇架
KR200436987Y1 (ko) 선박후방경사면으로의 보트 인양 및 하강장치
EP0414321B1 (fr) Bossoir basculant pour canots à chute libre
EP0145688B1 (fr) Dispositif embarqué pour larguer ou récupérer des bouées ou autres stations flottantes
EP0489101B1 (fr) Systeme pour faire sortir un bateau de sauvetage
JP2005206039A (ja) 救命艇積載装置
GB2057391A (en) Device to restrain suspended boats on moving ships from swinging
US9079640B1 (en) System and process for directing actions of a helmsman of a lifeboat
CN216762079U (zh) 可吊放多个救生筏的快速回收降放装置
CN219635427U (zh) 一种船用救生筏吊
SU1291490A1 (ru) Спуско-подъемное устройство дл плавсредств
CN1449341A (zh) 援救海上遇险者的方法和装置
JP3741516B2 (ja) フック装置
SU679482A1 (ru) Спуско-подъемное устройство дл плавсредств
JPH08282578A (ja) アーム式船舶係留・離接岸支援装置におけるアーム先端把持機構
JPS64275B2 (fr)
JPH0113036Y2 (fr)
GB2260518A (en) Liferaft launching system
GB2106858A (en) Boat launching system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE DK ES FR GB GR IT NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19910828