EP0438032B1 - Bateau avec porte d'étrave - Google Patents

Bateau avec porte d'étrave Download PDF

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Publication number
EP0438032B1
EP0438032B1 EP90811019A EP90811019A EP0438032B1 EP 0438032 B1 EP0438032 B1 EP 0438032B1 EP 90811019 A EP90811019 A EP 90811019A EP 90811019 A EP90811019 A EP 90811019A EP 0438032 B1 EP0438032 B1 EP 0438032B1
Authority
EP
European Patent Office
Prior art keywords
boat
flap
bow
wall
open
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 - Lifetime
Application number
EP90811019A
Other languages
German (de)
English (en)
Other versions
EP0438032A2 (fr
EP0438032A3 (en
Inventor
Hans-Rudolf Lehmann
Marcel Lehmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0438032A2 publication Critical patent/EP0438032A2/fr
Publication of EP0438032A3 publication Critical patent/EP0438032A3/de
Application granted granted Critical
Publication of EP0438032B1 publication Critical patent/EP0438032B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/08—Ports or like openings in vessels' sides or at the vessels' bow or stern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
    • B63B27/143—Ramps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/08—Ports or like openings in vessels' sides or at the vessels' bow or stern
    • B63B2019/083—Bow ports, e.g. for ferries

Definitions

  • the invention relates to a boat according to the preamble of claim 1.
  • Boats of this type are to be distinguished from those in which a flat flap, such as. B. are arranged in DE-OS 2 029 165 by means of a hinge in a flat boat wall part. Those boats have the disadvantage of hydrodynamically unfavorable driving behavior.
  • a boat of the type mentioned is known from FR-A 2 511 969. Also with this boat, like with other boats, care is taken that the flap is always close to the boat wall when swiveling.
  • the lower part of the flap has a recess into which the lower edge of the bow opening engages in a sealing manner when unfolding.
  • the shape of the bow portion below the flap opening is adapted to the pivoting movement of the flap about its pivot axis, ie it is designed as a family of partial circles with a center point on the pivot axis. The one below the fuselage part of the bow opening can therefore no longer be adapted to optimal flow conditions.
  • a two-part pair of flaps is known, the flaps of which can be swung open laterally about vertical swivel axes and run on rollers on a horizontal deck supported by the swiveling process. There is a free space between the bottom edge of the flaps and the surface of the deck, both when the flaps are closed and when they are open.
  • the flaps are separated by this deck from the lower bow area in the area of the water line of the ferry as well as from any water that may enter.
  • the design of the flaps thus has no relation to the driving properties of the ferry, which is even underlined by the resulting contour of the upper bow area when the flaps are closed, namely a V-shaped notch.
  • the object of the invention is to provide a boat with a bow flap which has good driving properties both when the bow flap is open and when it is closed.
  • the boat shown in a side view in FIG. 1 has a V-shaped or spoon-shaped in the longitudinal direction of the boat convex bow a flap 1 arranged symmetrically to the center line of the boat, which is shown unfolded in FIGS. 3 and 4, its outer wall 3 being partially immersed in water 4.
  • the outer wall 3 of the flap 1 is also curved like a spoon and is designed such that its outer shape continues aerodynamically and hydrodynamically into the outer front wall 7 in the closed state. With this configuration, when it is partially immersed in water 4, it acts as a flowable shield with good hydrodynamic properties, so that it can also be driven with the flap 1 unfolded, partially immersed in the water, the flap 1 then lifting the bow.
  • An intermediate space 2 is present between the lower flap part of the opened flap 1 and the front wall part located under the bow opening 15. Air is sucked under the boat hull through this space 2, which on the one hand prevents water 4 from penetrating and on the other hand reduces the sliding friction of the boat hull.
  • the open flap 1 also creates additional buoyancy for the boat through its shape and through a closed cavity 6 located between the outer flap wall and the inner wall, shown in FIG. 4 in section through the flap 1.
  • the rubbing strake 8a of the boat is also continued in the flap 1, and is used here as a butt edge 8b and flap reinforcement. If the flap 1 is used as a loading flap or landing flap, as described below, the abutting edge 8b is changed in accordance with its intended use compared to the embodiment shown in FIGS. 2 and 3.
  • the flap 1 as can be seen in FIG. 3, has on its inside on both sides a shoulder 9a and 9b which is parallel to the boat axis.
  • Each attachment 9a or 9b has a bracket 11 directed towards the boat bottom 10, via which the flap 1 is articulated directly on a swivel joint 13a and 13b on the inside of the boat in the vicinity of the bow opening 15 is stored above the boat bottom 10.
  • the flap pivot axis is set back from the bow wall edge 17 surrounding the bow opening 15 towards the middle of the boat by a distance.
  • Each boom 11 has between its swivel 13a and 13b a downwardly open recess 19a and 19b, into which the boat bottom edge 21 delimiting the flap opening 15 engages when the flap 1 is pivoted downward.
  • Piston-cylinder unit 23a or 23b exerting tension and pressure are mounted on a bearing 22a or 22b of extension 9a or 9b.
  • the base point 25a or 25b of the piston cylinder unit 23a or 23b is pivotably mounted at approximately the same height as the piston bearing on the inside of the boat.
  • electromechanical adjustment devices can also be used.
  • the flap 1 has a cavity 6 on the inside in order to achieve additional buoyancy when the flap 1 is partially pressed into the water with the piston-cylinder units 23a and 23b, which, as described below, is of great use in diving work, bathing operations or the like . This also pushes the bow up and can therefore be subjected to additional loads.
  • the buoyancy is so great that one or two people can easily stand on the open flap 1 without impairing the stability of the boat.
  • the flap 1 is arranged and mounted so that it can be pivoted into a position in which the outside of the outer wall 3 of the flap 1 is almost completely below and the inside is approximately at the level of the water line.
  • the boat outer floor 35 has an angular transition 36 to the boat outer side wall 37 and a round transition 39 in its rear part.
  • the angular transition 36 merges into the round transition 39 with a shoulder 41 located approximately in the middle of the length of the boat.
  • paragraph 41 can be arranged at a distance of two thirds of the total length of the boat from the bow of the boat.
  • the boat profile and in particular the round and angular transition 36 and 39 are shown in FIG. 5. Since the boat profile runs symmetrically to the center line 40, only one half of the profile is always shown in order not to overload the illustration, the profiles with an angular transition 36 being shown on the right in FIG. 5 and the round transitions on the left.
  • the letters A to G denote the profile locations as indicated in the side view of the boat in Figure 1.
  • the arrangement of the angular and round transition 36 and 39 described above has proven particularly useful when driving curves 44 on the water of a boat 46 equipped with two stern motors 45a and 45b, as shown in FIGS. 6 and 7.
  • the angular transition 36 the water is channeled under the boat bottom 35 parallel to the longitudinal axis of the boat.
  • the boat 46 tilts toward the curve center, as shown in FIG.
  • the water 4 as represented by two schematic flow lines 47a and 47b, is directed in the bow-side part of the boat 46 up to the heel 41 parallel to the boat axis and immediately bends outward behind the heel 41 under the boat 46. Contrary to the actual design, as can be seen from FIGS.
  • paragraphs 41 are drawn to the side in FIG. 6 for better identification.
  • water 4 is led up to the drive screw 48a of the stern motor 45a raised on the left in a right turn, whereupon the latter remains completely in the water and can continue to deliver its full thrust into the water.
  • the round transition 39 the boat glides away slightly in curve 44 with its stern, as a result of which its curve radius is considerably reduced.
  • this design of the boat hull an extremely precise approach to a desired location in a body of water is possible to then at this location with the flap 1 z. B. to carry out rescue work, to take bathers, to drop divers and to drive near the beach or shore in order to be able to get out easily.
  • the piston-cylinder units 23a and 23b are set to thrust by means of a control valve (not shown), as a result of which the flap part 5 is moved out of the bow against the water surface.
  • the flap 1 can be continuously adjusted and fixed in any angular position via the piston-cylinder units 23a and 23b.
  • the lowest pivot point of the flap 1 is reached when the abutting edge 8b as the upper flap edge is just above the water line.
  • the flap outer wall 3 is almost completely in the water 4. Since the flap outer wall 3 is arched like a spoon and its two sides are closed by the shoulders 9a and 9b, the flap 1 pressed into the water 4 already acts as a buoyancy body due to its external shape lifts the bow of the boat.
  • buoyancy body 29a and 29b Due to the rigid connection of the flap 1 via the piston-cylinder units 23a and 23b to the rest of the boat, no tilting is possible even when the flap 1 is subjected to extreme weight.
  • the buoyancy of the bow becomes additional, as in FIGS. 2 and 3 can be seen, increased by lateral buoyancy bodies 29a and 29b.
  • the upper side of these buoyancy bodies 29a and 29b can have a swing-open door; the accessories for the piston-cylinder units 23a and 23b can also be accommodated in them.
  • the flap 1 that has been swung out can serve as a platform for entering and exiting the water during diving and rescue work, as well as other work be used in the water; this flap 1 can also be used as a bathing platform.
  • the salvage of injured persons floating in the water 4 and goods floating on the water 4 is easy to carry out, since the injured person and the material can be easily pulled into the boat via the flap edge 8b.
  • the flap 1 can also be used as a flap if the boat is taken to the river bank and the flap 1 is folded against the bank. Due to the double-acting piston-cylinder units 23a and 23b, the flap 1 remains fixed in the angular position once set, regardless of how the boat is moved by waves or different loads.
  • a flap can also be mounted on the stern or in one of the boat side walls. If a flap is installed on the left and right in the side walls, it can be used as a work platform and as a stabilizing arm when unfolded. However, with the flaps arranged in the side walls of the boat, the boat cannot be driven, or only extremely slowly. A flap arranged at the stern requires a special design of the ship's drive. Outboard motors can then only be used to a limited extent attach. Only a flap in the boat side wall or at the stern would be a worse embodiment of the invention.
  • the boat according to the invention is that its flap 1, which serves as a work or pleasure platform, etc., can be folded back into the front wall in such a way that its hydro- and aerodynamic properties and its aesthetic appearance are not impaired.
  • the boat according to the invention can thus be used as a rescue, recovery, pleasure and speed boat without restricting its full functionality.
  • Another advantage is the design of the flap acting as a buoyancy body, the use of which is possible regardless of the stability problems of the boat; it increases the kentar stability of the boat even when unfolded.
  • the flap outer wall is designed such that when the flap is pushed into the water and the boat is moving forward, the bow is pushed upwards.

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Glass Compositions (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Barrages (AREA)
  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Toys (AREA)
  • Lock And Its Accessories (AREA)
  • Soil Working Implements (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Emergency Lowering Means (AREA)
  • Steering Controls (AREA)
  • Catching Or Destruction (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Claims (10)

  1. Bateau comprenant une porte ou volet (1) pouvant être rabattu vers le bas à partir d'une ouverture d'étrave (15), formant un élément d'étrave en forme de V ou de pelle bombé vers l'extérieur, le volet (1) étant monté au moyen de brides en saillie (9a, 9b) disposées sur ses deux côtés sur des articulations tournantes (13a) décalées vers l'intérieur du bateau par rapport à la paroi externe de l'étrave, et le décalage vers l'arrière de chaque articulation tournante (13a) étant choisi de manière que lorsque le volet (1) est fermé, la partie inférieure et les parties latérales du volet se raccordent à l'étrave en forme de V ou de pelle, et que lorsque le volet (1) est ouvert la partie inférieure du volet (1) soit située au-dessous de la zone de la paroi inférieure du bateau qui se raccorde directement au bord inférieur de l'ouverture d'étrave (15), et soit séparée de cette dernière par un espace ouvert (2).
  2. Bateau selon la revendication 1, caractérisé en ce que chaque bride en saillie (9a, 9b) comprend entre son articulation tournante (13a) et la paroi du volet un évidement (19a) ouvert vers le bas, la profondeur de l'évidement étant sélectionnée de manière que lorsque le volet (1) est ouvert, la partie de la paroi du bateau qui est située directement au-dessous du bord inférieur de l'ouverture d'étrave (15) soit disposée dans l'évidement (19a).
  3. Bateau selon la revendication 1 ou 2, caractérisé en ce que l'importance de la plage de pivotement du volet (1) est choisie de manière que la paroi externe du volet (1) à l'état ouvert soit située au moins en partie au-dessous de la ligne de flottaison du bateau et en ce qu'au moins la partie de la paroi externe du volet (1) qui est située au-dessous de la ligne de flottaison quand le volet (1) est ouvert est de forme convexe en direction longitudinale du bateau, de manière que le bateau soit soulevé du côté de l'étrave lorsqu'il se déplace sur l'eau en direction de l'avant alors que le volet (1) est ouvert et qu'il en résulte un effet d'aspiration pour l'eau et/ou pour l'air qui est ou sont aspirés au-dessous de la coque du bateau en passant par l'espace ouvert (2).
  4. Bateau selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la partie avant et les parties latérales du volet sont situées au moins dans leur parties avant et à l'état rabattu vers l'extérieur au-dessus de la ligne de flottaison, de manière que le volet (1) agisse à la manière d'un corps à force ascensionnelle de façon à appliquer au bateau une poussée ascensionnelle additionnelle.
  5. Bateau selon la revendication 4, caractérisé en ce que le volant (1) comprend en tant que corps à force ascensionnelle un espace creux fermé (6).
  6. Bateau selon la revendication 4 ou 5, caractérisé en ce que la paroi externe du volet peut être enfoncée au moins en partie au-dessous de la ligne de flottaison et être fixée dans sa position pour augmenter dans l'eau la force ascensionnelle lorsque le bateau est à l'arrêt ou lorsqu'il se déplace.
  7. Bateau selon l'une quelconque des revendications 1 à 6, caractérisé par au moins une unité à piston et cylindre à double effet (23a, 23b) dont une extrémité (25a, 25b) est fixée au côté interne du bateau et dont l'autre extrémité (22a, 22b) coopère avec au moins l'une des brides en saillie (9a, 9b) à distance de l'articulation tournante (13a, 13b), de manière à presser la paroi externe du volet au moins en partie au-dessous de la ligne de flottaison et à tirer la paroi du volet dans l'ouverture de l'étrave.
  8. Bateau selon l'une quelconque des revendications 2 à 7, caractérisé en ce que la partie de fond externe (35) du bateau comprend une zone de transition à arête vive (36) avec la paroi latérale externe (37) du bateau et une zone de transition arrondie (39) avec la partie arrière de manière à pouvoir manoeuvrer le bateau avec précision vers un endroit désiré.
  9. Bateau selon la revendication 8, caractérisé par un gradin (41) constituant une extrémité abrupte entre la zone de transition à arête vive et la zone de transition arrondie (36, 39).
  10. Bateau selon la revendication 9, caractérisé en ce que le gradin (41) est constitué à partir de l'étrave du bateau à une distance qui est au maximum des deux tiers de la longueur totale du bateau.
EP90811019A 1990-01-18 1990-12-21 Bateau avec porte d'étrave Expired - Lifetime EP0438032B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH13490 1990-01-18
CH134/90 1990-01-18
CH235590 1990-07-13
CH2355/90 1990-07-13

Publications (3)

Publication Number Publication Date
EP0438032A2 EP0438032A2 (fr) 1991-07-24
EP0438032A3 EP0438032A3 (en) 1991-11-06
EP0438032B1 true EP0438032B1 (fr) 1995-03-01

Family

ID=25683624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90811019A Expired - Lifetime EP0438032B1 (fr) 1990-01-18 1990-12-21 Bateau avec porte d'étrave

Country Status (10)

Country Link
US (1) US5191854A (fr)
EP (1) EP0438032B1 (fr)
JP (1) JP3115613B2 (fr)
AT (1) ATE119114T1 (fr)
AU (1) AU643739B2 (fr)
CA (1) CA2034150A1 (fr)
DE (1) DE59008592D1 (fr)
FI (1) FI910233A (fr)
NO (1) NO910185L (fr)
TR (1) TR25510A (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5537949A (en) * 1995-02-24 1996-07-23 Outboard Marine Corporation Diver's boarding ladder
AU716681B2 (en) * 1995-03-13 2000-03-02 Norpac Services Limited Boat hull
US5915328A (en) * 1995-03-13 1999-06-29 Rosalie Jean Rowan Boat hull
US5628274A (en) * 1995-07-24 1997-05-13 Harris Kayot, Inc. Boat ingress/egress system and ramp
US20040103839A1 (en) * 2002-12-03 2004-06-03 Timothy Fleming Access opening and ramp for boats
US20050257732A1 (en) * 2004-05-21 2005-11-24 Waldock William L Catamaran with hinged underwing
US8490561B2 (en) 2009-08-13 2013-07-23 Magarl, Llc Hull safety and protective device
FI122772B (sv) * 2010-02-12 2012-06-29 Kewatec Aluboat Ab Oy Bogport och bogportsenhet
US9944354B1 (en) 2012-12-14 2018-04-17 Quadratoon Company Llc Extendable multihull boat
US10308320B1 (en) 2012-12-14 2019-06-04 Quadratoon Company Llc Extendable multihull boat
SE537283C2 (sv) 2013-07-12 2015-03-24 Lars Hillbohm Båt med förskjutbart fribordsparti
US9409630B1 (en) * 2015-06-22 2016-08-09 Thomas M Day Door systems and methods for boats
US9969467B1 (en) 2016-06-09 2018-05-15 Thomas M. Day Marine vessel with moving control unit
US10647389B2 (en) * 2017-07-21 2020-05-12 The Hinckley Company Rotating and sliding boarding door assembly systems for a vessel and a vessel having the same
DE202022101538U1 (de) 2022-03-23 2022-06-27 Barro Bootsbau Gmbh Rettungs-Bordwand

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190912107A (en) * 1909-05-22 1910-05-23 William Henry Fauber Improvements in or relating to Hydroplane Boats.
GB190915977A (en) * 1909-07-08 1910-07-07 John Isaac Thornycroft Improvements in or relating to Power Driven Boats.

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NL24114C (fr) * 1927-09-28
DE540053C (de) * 1928-01-25 1931-12-05 Pieter Van Wienen Schiffskoerper mit einer Querstufe
US2601836A (en) * 1950-01-26 1952-07-01 Saunders Roe Ltd Planing bottom for boats
US2980924A (en) * 1958-11-06 1961-04-25 Canazzi Henry Donald Molded speed boat hull
US3596623A (en) * 1967-05-31 1971-08-03 Litton Systems Inc Double-hinged flotation ramp
FR2066899A1 (fr) * 1969-10-21 1971-08-13 Chastan Bagnis Lucien
US3808999A (en) * 1973-01-08 1974-05-07 R Peterson Boat hull construction to provide stern lift
US3808998A (en) * 1973-04-02 1974-05-07 G Molotzak Boat with bow outdrive and vertically swingable bow plane
US3996869A (en) * 1975-09-08 1976-12-14 Hadley Robert O Dihedral tunnel boat hull
US4083320A (en) * 1976-05-07 1978-04-11 Yost John V Non-broaching boat hull
NO140583C (no) * 1976-11-09 1979-10-03 Harding A S Rednings- og arbeidsbaat.
GB2047310B (en) * 1979-03-23 1983-03-16 Cargospeed Equip Ferry vessel doors
FR2511969A1 (fr) * 1981-08-28 1983-03-04 Etude Realisa Navale Ste Breto Structure de porte d'etrave de navire, formant rampe de debarquement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190912107A (en) * 1909-05-22 1910-05-23 William Henry Fauber Improvements in or relating to Hydroplane Boats.
GB190915977A (en) * 1909-07-08 1910-07-07 John Isaac Thornycroft Improvements in or relating to Power Driven Boats.

Also Published As

Publication number Publication date
AU6927491A (en) 1991-07-25
ATE119114T1 (de) 1995-03-15
FI910233A0 (fi) 1991-01-16
EP0438032A2 (fr) 1991-07-24
AU643739B2 (en) 1993-11-25
NO910185D0 (no) 1991-01-16
FI910233A (fi) 1991-07-19
JP3115613B2 (ja) 2000-12-11
NO910185L (no) 1991-07-19
DE59008592D1 (de) 1995-04-06
JPH04297391A (ja) 1992-10-21
EP0438032A3 (en) 1991-11-06
US5191854A (en) 1993-03-09
TR25510A (tr) 1993-05-01
CA2034150A1 (fr) 1991-07-19

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