EP2129574A1 - Plate-forme abaissable équipée d'un flotteur pour des navires - Google Patents

Plate-forme abaissable équipée d'un flotteur pour des navires

Info

Publication number
EP2129574A1
EP2129574A1 EP08700554A EP08700554A EP2129574A1 EP 2129574 A1 EP2129574 A1 EP 2129574A1 EP 08700554 A EP08700554 A EP 08700554A EP 08700554 A EP08700554 A EP 08700554A EP 2129574 A1 EP2129574 A1 EP 2129574A1
Authority
EP
European Patent Office
Prior art keywords
platform
buoyancy
lowerable
lowerable platform
buoyancy body
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Withdrawn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
EP08700554A
Other languages
German (de)
English (en)
Inventor
Peter A. Müller
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.)
MULLER Peter A
Original Assignee
MULLER Peter A
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 MULLER Peter A filed Critical MULLER Peter A
Publication of EP2129574A1 publication Critical patent/EP2129574A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • B63B23/40—Use of lowering or hoisting gear
    • B63B23/42—Use of lowering or hoisting gear with braking equipment
    • B63B23/44—Use of lowering or hoisting gear with braking equipment on the ship
    • 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
    • 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
    • B63B27/36—Arrangement of ship-based loading or unloading equipment for floating cargo

Definitions

  • the invention relates to a lowerable platform with integrated buoyant body for watercraft, according to the preamble of the first claim.
  • distance fixing means with height adjustment for outboard motors at the stern of watercraft are known in order to obtain speed advantages by means of the height adjustment, as well as not give up space in the watercraft cockpit when tipping the outboard motor, as described in the patent US 3,075,490, or US 4,657,513
  • the invention has for its object to provide a lowerable platform at a stern of a watercraft, also for outboard motor application, which at the same time has buoyancy means to keep the lowerable platform independently above water, the buoyancy means also provide a hydrodynamic support strips at the appropriate vehicle speed and or container for various technical means.
  • Lowerable platforms have a substantial inherent weight and essentially comprise the torsionally rigid lowerable platform itself, pivot arms, hinges, hydraulic cylinders, and fasteners at the stern of the vessel. The benefit of a lowerable platform is the increased comfort for bathers, divers to get in or out of the water, or to relax on the platform and just at the height of the
  • Watercraft are also unequally higher when the vessel is in motion in waves and at the same time a Tender- or Jetski réelle is attached to the lowerable platform. Furthermore, the hydraulics must be able to permanently hold the full weight and bumps in the swell of the lowerable platform, possibly only assisted by hoes and bolts that help prevent the lowerable platform from being released from the mooring position.
  • the lowerable platform has buoyancy means, which respectively the dead weight. also help to accommodate the payload weight by means of the buoyancy bodies, in addition to improve the safety of the vessel while driving, support the trim of the vessel and also ensures that the lowerable platform can not be lowered uncontrollably, and that the fluid cylinder does not have to move high loads ,
  • the pivot arms can be correspondingly made slimmer and lighter.
  • buoyancy means Since the platform lowering moves in the range of about 0.6 to about 1.5 m below the waterline, it is technically no great effort to equip the buoyancy means with technical means such as trim tabs, rudder, underwater light, exhaust system, extendable stilts, transverse thrusters and other and the hydraulic , resp. to lead electrical lines accordingly.
  • the buoyancy means may have recesses, so that the pivot lever can move freely in it and thus be protected from external Unbill, the protection also applies to the floats, as they can not get into and on the mechanism of the pivot arms.
  • the buoyancy means may consist of a unit or of modules and are attached to the lowerable platform accordingly.
  • variable hollow body can be provided in the buoyancy means, so depending on the size of a hollow body, this leads to more or less buoyancy and thus a positive weighting can be made very easily and accurately.
  • the height of the abutment position of the platform at the rear can be limited on the one hand by the Schwenkarmmechanik or fluid cylinder or by means of a mechanical stop between the platform and the rear wall of the vehicle.
  • the limitation may be such that the buoyancy means are in line with the watercraft fuselage bottom and thus are flowed identically or form a corresponding paragraph, or while driving depending on the vehicle speed, the height stop on the platform, respectively. can be varied on the buoyancy means, so that the buoyancy agents are more or less wetted by the water flow.
  • the core of the invention is to reduce by means of a buoyancy body, the burden of a lowerable platform opposite the stern of a watercraft to increase the security of the position of the lowerable platform platform, while the vehicle trim and To ensure roll stability, in particular with a retractable platform application with outboard motors and use the lowerable platform as a means to simultaneously attach various technical means in the rear area, as well as to provide hydrodynamic assistance to the vessel without this necessitating additional installation work at the stern of the vessel.
  • Fig. 1 is a schematic side view of the lowerable platform with the buoyancy body and an integrated technical means, the lifting mechanism and a self-lock
  • Fig. 2 is a schematic side view of the lowerable platform with the buoyant body in the horizontally extended position and the lifting / sliding mechanism
  • FIG. 1 A schematic side view of the lowerable platform with the buoyancy body and the lifting / sliding mechanism in the horizontally extended and additionally raised position, as well as a barrier
  • Fig. 4 is a schematic plan view of a watercraft with outboard engine with laterally extendable and lowerable platform with the buoyant body attached thereto, in the laterally extended position
  • Fig. 5 is a schematic side view of the lowerable platform with the buoyancy body and the lifting / sliding mechanism in the horizontally extended position, with a Tenderboothalterung
  • Fig. 6 is a schematic rear view of a watercraft with a lowerable platform with modular buoyancy bodies and integrated lifting mechanisms
  • Fig. 7 is a schematic side view of the lowerable platform with the
  • Fig. 8 is a schematic side view of a buoyant body with integrated stackable hollow bodies
  • Fig. 9 is a schematic side view of a buoyancy body with adjustable
  • Fig. 10 is a schematic representation of the Hubzylinder crampung by the influencer, stroke position, speed, transmission and Z-drive position
  • the lifting mechanism 3 consisting of a lifting cylinder 4, and a lower pivot arm 5 and an upper arm 6 - which represents a parallelogram, with at least two parallelograms per lowerable platform 1 are mounted - and are attached to the lowerable platform 1 or the buoyancy body 2 and are connected on the opposite side by means of a joint receptacle 7 with the rear 8 of the watercraft 10 by means of the screw connection 9.
  • the buoyant body 2 can at the same time accommodate various technical means 13, such as trim tabs 13a, underwater lighting, rudder elements, etc., wherein the technical means 13 are separated from the buoyancy body 2 so that no water can penetrate into the hollow body 43 of the buoyancy body 2. By eg foaming the hollow body 43, this is effectively solved.
  • various technical means 13 such as trim tabs 13a, underwater lighting, rudder elements, etc.
  • the Hubbegrenzungsthesis 11 is designed as large as possible, so that is not selectively pressed on the rear 8 and also serves as an adjustment of the upper abutment position of the lowerable platform 1.
  • the lifting cylinder 4 on the lifting mechanism 3 By activating the lifting cylinder 4 on the lifting mechanism 3, the lowerable platform 1 is lowered and this can until submerged under the waterline WL, represented by the
  • the self-lock 12 is automatically secured by means of the self-lock 12 in the resting position and also the buoyant body 2 with the watercraft fuselage 10 a with respect to the optimal flow S while driving fit properly.
  • the self-locking 12 is released by activation of the lock cylinder 41.
  • the self-lock 12 is designed to hold the platform 1 in position even when the watercraft
  • the buoyancy body 2 may have a hydrodynamic shape, whereby the watercraft 10 additionally benefits when traveling in terms of stability, fuel consumption, etc.
  • the buoyancy body 2 can continue on have a buoyancy body lock 12a, so that at high hydrodynamic forces through the flow S 1 this does not lead to uncontrolled forces on the lifting mechanism 3, but the forces already on the buoyancy body 2, best in the lower region, are collected.
  • the buoyant body barrier 12a may be a passive version by engaging the platform 1 at the stern
  • a positive coupling 12b, 12c of the buoyancy body 2 is formed with the rear 8, or an active version in which a second self-lock 12 with an unlockable locking cylinder 41 is used.
  • Pneumatic or an electric spindle drive and instead of a parallelogram and a linear rail system can substitute the stroke / pivot range HS.
  • Fig. 2 shows a schematic side view of the lowerable platform 1 with the buoyant body 2 attached thereto in the horizontally extended position P, indicated by the arrow X, which is reached with a sliding mechanism 14 and placed under a second, rigidly located upper platform 1a.
  • the sliding mechanism 14 may be a slide rail or a rail / roller combination so that the lowerable platform 1 is horizontal on the lift carrier
  • the lifting beam 15 can be driven back and forth.
  • the horizontal displacement takes place either manually or by a horizontal lifting cylinder 31.
  • the lifting beam 15 can simultaneously be receiving part of the pivot arms 4.5. Due to the horizontal displacement of the lowerable platform 1, the buoyant body 2 fastened thereto is displaced together with the buoyancy force A and thus little changes the trim of the
  • the lifting carrier 15 can be further increased in such a way that the lowerable platform 1 comes to lie on a shortened upper platform 1a, and driven by means not shown recesses in the buoyancy bodies 2, the lowerable platform 1 horizontally according to arrow X to an upper stroke limiting means 11a and can be stored there on the upper platform 1a.
  • FIG 3 shows a schematic side view of the lowerable platform 1 with the buoyant body 2 attached thereto in the horizontally extended and additionally
  • the lift on the lifting cylinder 4 can additionally be raised so that the lowerable platform 1 forms a plane with the upper platform 1a ,
  • a very large flat platform surface is achieved, which can be used as an additional floor space for people or goods and can afford sufficient buoyancy due to the buoyancy body 2, that the watercraft 10 does not get submerged in the rear area.
  • insert elements 16 such as holes are provided in the lowerable platforms 1,1a, so that barrier elements 17 can be inserted, such as pillars 17a with
  • Fig. 4 shows a schematic plan view of a watercraft 10 with a
  • At the rear 8 is one or more support 20 which on the one hand carry a crossbeam 21 and a fixed transverse platform 1b, wherein on a support 20, the Joint seat 7 and the lifting mechanism 3 is mounted, which can swing the lowerable platform 1 transverse to the direction of travel of the watercraft 10.
  • the lowerable platform 1 may be above or below the transverse
  • the crossbeam 21 carries the outboard motor 19, or more, as well as the cover 22, so at sea the most secure separation between float on the lowerable platform 1, the lifting mechanism 3, and the outboard motor 19, in particular to the outboard propeller exists.
  • a damping means 18 can be interposed for the vibration damping of the outboard 19 in order not to transmit the engine vibrations as far as possible to the watercraft 10.
  • Fig. 5 shows a schematic side view of the lowerable platform 1 with attached buoyancy body 2 in the horizontally extended position P, wherein the Lowerable platform 1 has a Tenderage 23 which is connected at one end by a hinge 24 fixed to the lowerable platform 1 and at the other end has a movable roller pair 25.
  • the tender receptacle 23 may carry a sensor 26 which notifies the vessel operator or the controller 38 whether a tender boat 27 is located on the tender receptacle 23 and / or whether it is also correct.
  • the tender receptacle 23 may also have corresponding mounts, not shown, to securely secure the tender boat 27 to the watercraft 10, indicated by the mooring sensor 58.
  • the tender boat 27 is on the tender receptacle 23 and the lowerable platform is in position P, then preferably provided by the buoyancy A of the buoyancy body 2, that the payload N is compensated as possible on the lowerable platform.
  • the tender receptacle 23 fastened to the hinge 24 moves up the ramp 28 of the upper platform 1a on its pair of rollers 25, on this until shortly before the end of the horizontal movement, the second ramp 29 down the opening 30 with a corresponding hole size, so that the Tenderage 23, resp. the roller pair 25 in turn rests directly on the lowerable platform 1 and thus the upper platform 1a is relieved.
  • FIG. 6 shows a schematic rear view of a rear 8 with a lowerable platform 1 with the attached modular buoyancy bodies 2a and integrated lifting mechanisms 3.
  • Is there an obstacle 34 in the form of a Z drive, or an outlet opening of a jet engine at the rear 10? Drive or the like, so it makes little sense to use a continuous buoyancy body 2, but for corresponding modules, which can be mounted individually to the lowerable platform 1 quickly and easily to use. These modules can also assume hydrodynamic tasks and can also have technical means 13 in them.
  • Another advantage is that watercraft have 10 different width masses, but many of them have the same upcharge.
  • a particular modular buoyant body 2a may be connected to e.g. a rise of 19 °, to a
  • FIG. 7 shows a schematic side view of the lowerable platform 1 with the buoyant body 2 fastened thereto, which limits the lifting height of the buoyant body 2 by means of a variable limiting means 11b, so that the lower edge U of the buoyant body 2 lies in the water flow S or is only partially wetted or can be taken completely out of the flow.
  • this stroke limitation can also be done by the lifting cylinder 4.
  • the length of the vessel can be modulated and, depending on the desire, the vessel 10 by means of submerging the buoyant body 2 located on the platform 1, to set the submerged length of the vessel body 10a shorter or longer. Tests on gliding vessels 10 have shown that up to a certain
  • Speed it is advantageous to have an additional hull length in the flow, as this generates an additional hydrodynamic lift D1, from a further increase in speed, the friction acts on the additional hull then harmful.
  • the hydraulic unit 39 can be issued via a controller 38, the command to extend or extend the lifting cylinder 4 with feedback of the effective position on the distance sensor 40.
  • the lock cylinder 41 is unlocked in advance to the Lock 42, which may be a toothing to solve to make the buoyancy body 2 freely movable.
  • the lock 42 allows various position settings, so that at each completed stroke positioning H, the buoyancy body 2 can be locked, so that with a watercraft 10 and the lowerable platform 1 itself can be jumped safely over waves.
  • a simpler form for influencing the hull length in a gliding vessel 10 in dependence on speed is the incorporation of one or more step edges U1, U2 at the lower edge U of the buoyancy body 2, the faster a V-hull glide vessel 10 moves, the more it rises from the water and thus is a further reduction, resp. Reduction of the friction surface at the trunk end desired.
  • variable stroke limiter 11 b is placed between the platform 1 and the buoyancy body 2 and not shown variable spacers a correct adjustment of the buoyancy body. 2 enable.
  • the height variation can be done manually or by hydraulic or electrical means.
  • buoyancy A always prevails on buoyancy body 2.
  • buoyancy body 2 When buoyant vessel 8 is stationary, buoyancy body 2 generates a static lift D2. If the vessel 8 takes up speed, the static lift D2 is reduced, resulting in dynamic lift D1.
  • FIG. 8 shows a schematic side view of a lowerable platform 1 with the buoyant body 2 attached to it, with base filling 35 integrated in the cavity 43, and individually stackable hollow bodies 44, each having an air volume L1, which is conveyed by means of e.g. a threaded rod 45 and nut 46 are fastened to the bottom part 47 of the buoyancy body 2.
  • a threaded rod 45 and nut 46 are fastened to the bottom part 47 of the buoyancy body 2.
  • the opening 48 allows the water inlet and outlet in the hollow body 43, represented by the arrow E.
  • FIG. 9 shows a schematic side view of a buoyant body 2 with an adjustable hollow body 49 integrated in the cavity 43, in the form of a bellows, for example, which manually, or automatically, varies the air volume L2 in the bellows by means of a pressure sensor 50 or tender sensor 51.
  • the volume build-up and the volume reduction takes place via the supply line 52 by means of the air pump unit 53.
  • the automatic filling resp. Volume release is triggered by a pressure sensor 50, which measures the forces on the swivel arm 4 or 5, the pressure reading goes to the controller 38, which forwards the command to the air pump unit 53 and the volume in the adjustable hollow body 49 changes until the desired desired Value on the pressure sensor 50 loads.
  • Fig. 10 shows a schematic representation of the control of the lifting cylinder 4 by the controller 38 due to the various influencers 32,40,54,55,56,57,58 as the Horizontalhubmesssensor 32 of the horizontal lifting cylinder 31, Wegmessposition 40 of the lifting cylinder 4, speed level 54th , Gear position 55, Z drive position 56,57, the latter divided into trim position 56 and deflection position 57, and mooring sensor 58 and Wegmessposition 32 of the horizontal lift cylinder 31st
  • the watercraft 10 should not be driven with lowered platform, so should be locked at engine speed of the transmission gear to prevent a drive recording or allow a maximum of only a low drive speed limitation.
  • the tender boat 27 still at the Tenderage 23, resp. attached to the lowerable platform 1, indicated by the mooring sensor 58, so the lowerable platform 1 can not be lowered below a certain Hubwert.
  • the lowerable platform 1 should also not be extended beyond a certain value, as long as the obstacle 34, such as e.g. the trim position 56 and deflection position 57 of the Z drive are not in a predetermined position field, otherwise the lowerable platform 1 could be damaged on the housing of the Z drive.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Jib Cranes (AREA)

Abstract

La présente invention concerne une plate-forme abaissable (1) pour un navire (10), qui peut également être déplacée horizontalement et sur laquelle est fixé un flotteur (2) comportant une cavité fermée (43) ou une cavité ouverte (43). Une poussée (A) sur le flotteur (2) est générée au moyen du volume d'air (L). Il est ainsi possible de compenser de façon adéquate, grâce à la poussée (A), la charge propre ou la charge utile (N) d'un navire annexe (27), par exemple, sur la plate-forme abaissable (1). Une configuration hydrodynamique du flotteur (2) génère également une poussée hydrodynamique (D1) qu'il est possible de faire varier en termes de hauteur par rapport au courant (S) à l'aide de moyens (4,37,38,39), en fonction du flotteur (2).
EP08700554A 2007-02-12 2008-02-11 Plate-forme abaissable équipée d'un flotteur pour des navires Withdrawn EP2129574A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2322007 2007-02-12
PCT/CH2008/000050 WO2008098393A1 (fr) 2007-02-12 2008-02-11 Plate-forme abaissable équipée d'un flotteur pour des navires

Publications (1)

Publication Number Publication Date
EP2129574A1 true EP2129574A1 (fr) 2009-12-09

Family

ID=39576542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08700554A Withdrawn EP2129574A1 (fr) 2007-02-12 2008-02-11 Plate-forme abaissable équipée d'un flotteur pour des navires

Country Status (4)

Country Link
US (1) US8286574B2 (fr)
EP (1) EP2129574A1 (fr)
JP (1) JP2010517869A (fr)
WO (1) WO2008098393A1 (fr)

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Also Published As

Publication number Publication date
US8286574B2 (en) 2012-10-16
WO2008098393A1 (fr) 2008-08-21
JP2010517869A (ja) 2010-05-27
US20100089302A1 (en) 2010-04-15

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