EP0153248B1 - Davit für Schiffe, insbesondere für die Zuwasserlassung und die Handhabung von Gegenständen, etwa eines Rettungsbootes - Google Patents

Davit für Schiffe, insbesondere für die Zuwasserlassung und die Handhabung von Gegenständen, etwa eines Rettungsbootes Download PDF

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Publication number
EP0153248B1
EP0153248B1 EP85400274A EP85400274A EP0153248B1 EP 0153248 B1 EP0153248 B1 EP 0153248B1 EP 85400274 A EP85400274 A EP 85400274A EP 85400274 A EP85400274 A EP 85400274A EP 0153248 B1 EP0153248 B1 EP 0153248B1
Authority
EP
European Patent Office
Prior art keywords
platform
ship
pivoting
arms
hinged
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.)
Expired
Application number
EP85400274A
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English (en)
French (fr)
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EP0153248A1 (de
Inventor
Alain Zoonens
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0153248A1 publication Critical patent/EP0153248A1/de
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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
    • B63B23/30—Devices for guiding boats to water surface
    • B63B23/32—Rigid guides, e.g. having arms pivoted near waterline

Definitions

  • the invention relates to a davit device for boats, in particular for launching and maintaining an object such as a lifeboat or annex, of the type described in the preamble to the main claim.
  • This known device has two major drawbacks.
  • the control system of the support arm must be relatively complex in that it must not only ensure the horizontal maintenance of the platform, but must also ensure a displacement of the platform in an inclined position, which also involves an appropriate conformation of the upper wall of the rear part of the boat.
  • the prior art is content with a general remark according to which the displacement of the platform could be effected hydraulically, without however describing the means necessary for this purpose.
  • the other major drawback lies in the fact that the platform in its storage position occupies a rear part of the deck of the boat, which is as much useful space lost. Of course, by keeping the platform in its elevated position of rest on the deck of the boat, it can be kept fixed on the boat and thus meet any safety requirement.
  • the present invention aims to provide a davit device which does not have the drawbacks which have just been stated of the known device.
  • Figure 1 is a side view of a davit device according to the invention, showing this device in its two extreme positions.
  • Figure 2 is a view in the direction of arrow 11 in Figure 1, of the davit device according to the invention.
  • Figure 3 is a view towards arrow 111 of Figure 2, partially broken away.
  • a davit device 1 is mounted on the rear part of a boat 2.
  • the davit device 1 essentially comprises a platform 3 and two pivoting arms 4 for supporting the platform, control means 5 of the pivoting movement of the arms 4 and means 6 adapted to ensure the horizontal orientation of the platform 1, independently of the angular position of the support arms 4.
  • the arms 4 each pivot in a vertical plane.
  • Each support arm 4 of the platform 1 is articulated at 7 to the exterior lower part of the boat 2, above its waterline, preferably at the transom 8 of the latter.
  • the free upper end of each arm 4 is articulated at 10 to the lower structure of the platform 1.
  • the articulation points 10 of the arms 4 to the platform 1 are located substantially in the middle of the platform, symmetrically with respect to the longitudinal axis of the boat.
  • the davit device is adapted so that the platform 1 is movable in translation between an extreme high position a above the water level 11 and an extreme low position b below level 11, while being kept in a horizontal position.
  • the support arms 4 are bent appropriately so that their upper parts articulated at 10 to the platform extend vertically and horizontally along that the platform is respectively in its raised position a or its lower position b.
  • the control means 5 for pivoting the arms 4 can be made in any suitable manner, but are advantageously formed by a hydraulic cylinder articulated at one end at 12 to the transom 8 of the boat and by its other end, at 13, to a bar transverse 14 forming a spacer and extending between the two arms 4.
  • the means 6 for holding the platform 1 in a horizontal position are formed by a servo-motor such as for example a hydraulic jack articulated by its body at 15 to the lower structure of the platform and by the end of its piston rod, at 16, to a transverse bar 17 connecting the two arms 4.
  • the hydraulic cylinder 5 for controlling the pivoting of the arms 4 and the hydraulic cylinder 6 for maintaining the horizontal position of the platform 1 are preferably automatically coordinated so as to constantly ensure the horizontal position of the platform.
  • the platform 1 has a shape and a size suitable for receiving a cradle 18 adaptable to any type of annex object, such as a lifeboat 20 illustrated in the figure, schematically in phantom lines.
  • the shape and size of the pivoting arms 4 are such that, in its extreme low position b, the platform is submerged to a depth sufficient to allow the launching and floating of the boat 20 as well as the setting on the cradle 18 of a floating boat 20.
  • the platform 1 In its extreme high position a, the platform 1 is located at a level higher than the level of the freeboard of the boat.
  • Two safety fastening devices 21, on either side of the longitudinal axis of the boat 2 can be provided to make the platform removably integral with the structure adjacent to the boat, when it is in its extreme position high a.
  • Each of the safety fastening devices 21 can be constituted for example by a yoke and tenon system respectively secured to the boat and the platform or vice versa and can be coupled by a locking pin.
  • the platform can be equipped with a remote control of the control means 5, 6 as well as a light signaling of its state and / or of its operation.
  • the invention has in particular the great advantage of allowing the navigation of a boat on the high seas in complete safety with regard to the annexed boat arranged in stern and also of being able to completely turn over the boat on its cradle during wintering or large crossing to prevent it from filling with rain or sea water.
  • the platform can also be used as a bathing and solarium platform as well as for other various uses, for example as a means of lifting or lifting or the like.
  • the platform can be located anywhere on a boat.
  • the support arms could be articulated to the platform, at its lateral sides and / or at its side adjacent to the boat. A single support arm could be sufficient for the support of the platform.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Jib Cranes (AREA)
  • Toys (AREA)
  • Emergency Lowering Means (AREA)
  • Ladders (AREA)

Claims (6)

1. Davitvorrichtung für Schiffe, insbesondere für die Zuwasserlassung und die Handhabung von Gegenständen; etwa eines Rettungsbootes oder eines Zusatzbootes, enthaltend eine zum Tragen des besagten Gegenstandes auf deren oberen Oberfläche angepasste Plattform, die auf dem Schiff verschiebbar und gleichzeitig in einer, auf wenigstens einem Teile deren Gang, im wesentlichen waagrechten Stellung zwischen einer erhöhten, sich über dem Wasserpegel befindenden Lage und einer niedrigen, sich vorzugsweise unter dem Wasserpegel befindenden Lage, um das Schwimmen des besagten Gegenstandes zu ermöglichen, gehalten ist, wobei die Plattform von wenigstens einem schwenkbaren, über einem Ende an dem unteren Aussenteil des Schiffes angelenkten Arme gestütz ist, und wobei die Plattform vorzugsweise hydraulisch betätigt ist, dadurch gekennzeichnet, dass die Plattform (3) in deren hohen Aufstellungslage aussenbords gehalten ist, dass der Davit eine Vorrichtung zur Sicherheitsbefestigung (21) aufweist, die es ermöglicht, dass die Plattform (3) mit.der Schiffsstruktur lösbar fest verbunden ist, wenn diese sich in der besagten Aufstellungslage befindet, wobei diese Befestigungesvorrichtung (21) und der schwenkbare Arm (24) ein, von den Betätigungsmitteln der Verschiebung von der Plattform völlig unabhängiges Tragsystem für die Plattform bilden, und dass die Betätigungsmittel einen Arbeitszylinder (5) zur Steuerung der Schwenkung des schwenkbaren Arms (4), der über dessen Enden am besagten Arm (4) und vorzugsweise an dem oberen Aussenteil des Schiffes (2) angelenkt ist, und einen Arbeitszylinder (6) zur Haltung der Plattform in der waagrechten Lage, der zwischen dem besagten Arm (4) und der Plattform montiert ist, aufweisen, wobei diese Arbeitszylinder zum Zusammenarbeiten angepasst sind, um die waagrechte Schwenkung der Plattform während dem ganzen Gang der Plattform zwischen deren niedrigen und erhöhten Lagen automatisch zu gewährleisten.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das freie Ende der einen schwenkbaren Arm bildenden Mittel (4) an der unteren Struktur der Plattform, vorzugsweise an dem mittleren Teil dieser Struktur, angelenkt ist.
3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Mittel zum Anlenken der schwenkbare Arme bildenden Mittel (4) an dem Schiff (2) über der Konstruktionswasserlinie angeordnet sind und dass die Arme bildenden Mittel gebogen sind, um das Senken der Plattform unter dem Wasserpegel zu ermöglichen.
4. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Plattform (3) am hinteren Teil des Schiffes vorgesehen ist, wobei die schwenkbare Arme bildenden Mittel (4) vorzugsweise an dessem Spiegel (8) angelenkt sind.
5. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die schwenkbare Arme bildenden Mittel (4) aus zwei Armen bestehen.
6. Vorrichtung gemäss Anspruch 5, dadurch gekennzeichnet, dass die zwei schwenkbaren Arme (4) durch einen Steg (14) verbunden sind und dass ein einziger Arbeitszylinder (5) zur Schwenkung beider Arme (4) vorgesehen ist, wobei dieser Arbeitszylinder über dessen Enden an dem Schiff (2) bzw. an dem mittleren Teil des Steges (17) angelenkt ist.
EP85400274A 1984-02-17 1985-02-15 Davit für Schiffe, insbesondere für die Zuwasserlassung und die Handhabung von Gegenständen, etwa eines Rettungsbootes Expired EP0153248B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8402464 1984-02-17
FR8402464A FR2559732B1 (fr) 1984-02-17 1984-02-17 Dispositif bossoir pour bateaux notamment pour la mise a l'eau et le support d'un objet tel qu'une embarcation de sauvetage

Publications (2)

Publication Number Publication Date
EP0153248A1 EP0153248A1 (de) 1985-08-28
EP0153248B1 true EP0153248B1 (de) 1988-05-11

Family

ID=9301153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400274A Expired EP0153248B1 (de) 1984-02-17 1985-02-15 Davit für Schiffe, insbesondere für die Zuwasserlassung und die Handhabung von Gegenständen, etwa eines Rettungsbootes

Country Status (8)

Country Link
US (1) US4627377A (de)
EP (1) EP0153248B1 (de)
AU (1) AU3890985A (de)
CA (1) CA1222909A (de)
DE (1) DE3562596D1 (de)
ES (1) ES284713Y (de)
FR (1) FR2559732B1 (de)
GR (1) GR850421B (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4964358A (en) * 1989-03-22 1990-10-23 Sandrow Martin S Small boat hoisting apparatus and method
US5020463A (en) * 1989-12-18 1991-06-04 Franklin Robert E Arrangement for raising or lowering boats or the like
US5140923A (en) * 1991-03-25 1992-08-25 Wood Kevin L Raising and lowering device
DE9103949U1 (de) * 1991-04-02 1991-07-25 Storms, Ernst, 5140 Erkelenz Plattform für vorzugsweise Jachten
DE19625155A1 (de) * 1996-06-24 1998-01-08 Klaus Friedrich Hubeinrichtung
HRP970121B1 (en) * 1997-02-28 2009-03-31 �aneti� Ton�i Hydraulic and gravity davit
US6047659A (en) * 1997-10-30 2000-04-11 Schmidt, Jr.; Anthony P. Mounting apparatus for a lift assembly
US6474256B1 (en) * 2001-07-20 2002-11-05 Shore-Mate Industries, Inc. Dinghy lift
US6786170B2 (en) 2002-04-16 2004-09-07 David L. Trowbridge Boat lifting device
NO317543B1 (no) * 2002-09-05 2004-11-08 West Innovation Batheis og fremgangsmate for forenklet landing og sjosetting av en lettbat pa store stive merdkonstruksjoner eller pa brygger
US6782842B1 (en) 2003-01-06 2004-08-31 Jeff Alvord Boat-lift systems and methods
FR2867446B1 (fr) * 2004-03-15 2007-06-22 Tenderlift Sarl Dispositif de commande du mouvement d'une plateforme attachee a la poupe d'un navire de plaisance permettant de deplacer verticalement une charge tout en la maintenant horizontale
US20080105186A1 (en) * 2005-05-10 2008-05-08 Sealift, Inc. Boat Lifting Apparatus and Method
BE1016348A4 (nl) * 2005-06-23 2006-08-01 Dredging Int Inrichting en werkwijze voor het zuigmondwisselen.
US8820262B2 (en) * 2007-07-12 2014-09-02 Peter A. Muller Positive control for watercraft platform
US7707955B1 (en) 2007-08-07 2010-05-04 Sealift, Inc. Transom platform lifting apparatus and method
DE102007058831B3 (de) * 2007-11-30 2009-03-12 Gerd Bär GmbH Hubladebühne für ein Wasserfahrzeug
US8061932B1 (en) * 2009-06-19 2011-11-22 Latham Robert P Hydraulic boat lift
US20110023770A1 (en) * 2009-07-31 2011-02-03 Control Solutions LLC Intelligent boat lift system
US8931427B2 (en) 2010-01-13 2015-01-13 Peter A. Mueller Safety tender lift

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE162149C (de) *
DE91272C (de) *
US2349268A (en) * 1942-05-14 1944-05-23 Harrison C Hartzog Quick-acting launching device for boats and the like
US2398274A (en) * 1944-03-30 1946-04-09 Charles G Albert Device for launching and retrieving boats
DE1033075B (de) * 1956-07-25 1958-06-26 Donald T Adams Einrichtung zum Aus- und Einsetzen von Rettungsbooten in das Wasser
US3671986A (en) * 1970-01-02 1972-06-27 Allen A Peters Apparatus and method for launching and recovering a small boat
US3675258A (en) * 1970-10-22 1972-07-11 Bradley M Osmundson Boat hoist
DE2941611A1 (de) * 1979-10-13 1981-04-23 Dyckerhoff & Widmann AG, 8000 München Transportfahrzeug fuer raumzellen, insbesondere stahlbetonfertiggaragen
NO140530C (no) * 1978-01-06 1979-09-19 Aukra Bruk As Fremgangsmaate og anordning for utsetting og innhivning av livbaat, pick-up baat, mindre undervannsbaat, samt oppfangning av mennesker og loese gjenstander i sjoeen
US4467894A (en) * 1982-01-15 1984-08-28 Anderson, Clayton & Co. Fluid power system
FR2527668A1 (fr) * 1982-05-26 1983-12-02 Poclain Sa Engin de terrassement a fleche, balancier et godet comportant un dispositif de commande de l'orientation du godet

Also Published As

Publication number Publication date
CA1222909A (en) 1987-06-16
US4627377A (en) 1986-12-09
FR2559732A1 (fr) 1985-08-23
ES284713U (es) 1985-09-01
ES284713Y (es) 1986-05-01
FR2559732B1 (fr) 1988-01-22
GR850421B (de) 1985-06-18
AU3890985A (en) 1985-08-22
EP0153248A1 (de) 1985-08-28
DE3562596D1 (en) 1988-06-16

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