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WO1997016341A1 - Ameliorations se rapportant a des rampes d'embarquement - Google Patents

Ameliorations se rapportant a des rampes d'embarquement Download PDF

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Publication number
WO1997016341A1
WO1997016341A1 PCT/GB1995/002538 GB9502538W WO9716341A1 WO 1997016341 A1 WO1997016341 A1 WO 1997016341A1 GB 9502538 W GB9502538 W GB 9502538W WO 9716341 A1 WO9716341 A1 WO 9716341A1
Authority
WO
WIPO (PCT)
Prior art keywords
passageway
boarding ramp
ramp
boarding
end region
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.)
Ceased
Application number
PCT/GB1995/002538
Other languages
English (en)
Inventor
Urs Arnold Hagen
Gwyn Peredur Owen
Martin Schmid
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.)
Services Algoa International Anstalt
Original Assignee
Services Algoa International Anstalt
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 Services Algoa International Anstalt filed Critical Services Algoa International Anstalt
Priority to AU37069/95A priority Critical patent/AU3706995A/en
Priority to PCT/GB1995/002538 priority patent/WO1997016341A1/fr
Publication of WO1997016341A1 publication Critical patent/WO1997016341A1/fr
Anticipated expiration legal-status Critical
Ceased 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 
    • 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 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/02—Magnetic mooring equipment

Definitions

  • the present invention relates to a boarding ramp for use in providing access to and from a vehicle.
  • the present invention relates to a boarding ramp which can be used to provide access to and from a waterborne vehicle such as a boat or hovercraft especially at offshore structures such as, for example, drilling rigs, production platforms, gathering stations, well jackets, well protectors, well platforms, gas injection platforms, water injection platforms, well caissons and helideck platforms.
  • offshore structures such as, for example, drilling rigs, production platforms, gathering stations, well jackets, well protectors, well platforms, gas injection platforms, water injection platforms, well caissons and helideck platforms.
  • An aim of the present invention is to provide a boarding ramp which can be used on a boat or a hovercraft both to allow for ready access and mooring of the boat or hovercraft.
  • a boarding ramp which, in use, is pivotally secured to a waterborne craft, said boarding ramp comprising an elongate passageway, one end region of which is adapted to be pivotally attached to a waterborne craft, a hydraulic ram being connected to the passageway and connectible to the craft to, in use, control pivotal movement of the passageway, and a magnet being arranged on the other end region of the passageway for use in securing the said other end region of the passageway to an unloading location.
  • the boarding ramp of the present invention may be used to advantage on, for example, the foredeck of a boat to allow for unloading/loading of freight and people, with the magnet engaging and magnetically gripping a suitably located ferromagnetic plate permanently secured to a quayside or the boat landing deck of an offshore structure.
  • the magnetically secured boarding ramp thus moors the boat as well as allowing for access.
  • More especially the boarding ramp of the present invention may be used on a hovercraft to allow for mooring and access to a ferromagnetic plate secured to the boat landing deck of an offshore structure, the magnetically secured boarding ramp mooring the hovercraft at a distance from the boat landing deck to thus prevent damage to the inflatable skirt of the hovercraft.
  • the magnet is an electromagnet which can be remotely activated from the boat or hovercraft, the hydraulic ram being likewise remotely controlled.
  • the hydraulic ram can be activated to pivot the passageway relative to the boat or hovercraft from a stored position on board, to a position wherein the other end region of the passageway is located over the docking position, the hydraulic ram being of the double acting type to provide for control in both pivotal directions.
  • the electromagnet can then be activated to attract and secure the electromagnet to a ferromagnetic plate permanently fixed at the docking position.
  • the passageway which preferably is substantially horizontal in the docked/moored position preferably has a handrail on one or both sides to facilitate use.
  • the handrail may be collapsible when the ramp has been pivoted to the stored position.
  • the hydraulic ram is preferably provided with a bypass preferably controlled by a solenoid valve.
  • the solenoid valve may be opened so that the boarding ramp may pivot relative to the boat or hovercraft in response to the sea swell.
  • the electromagnet is preferably attached to the said other end region of the passageway by a pivotal joint, preferably a universal joint or spherical bearing.
  • the passageway itself may be made as one unitary section, though preferably it is made of two sections, one section comprising an elongate flat surface and the other section comprising two regions fixed together at an obtuse angle.
  • One of said regions is pivotally secured to the boat/hovercraft and the free end of the other region is pivotally attached to one end of said one section, the magnet being attached to the other end region of said one section.
  • Said sections are pivotal relative to each other by a further double acting ram so that in a stored position said one region of said other section can lie along the deck with said one section pivoted to lie against said other region of said other section.
  • the hydraulic rams When required the hydraulic rams are activated so that said sections pivot to a position wherein said one section and the other region of the other section are substantially coplanar and substantially horizontal, with said one region of said other section being angled to the deck and provided with steps to facilitate walking thereon.
  • the steps are adjustable either manually or automatically so that they are each always horizontal in the in use position of the ramp.
  • a collapsible handrail is also preferably provided in the said sections. Further, extra pivotal sections can be incorporated within the scope of the present invention.
  • the passageway is additionally pivotal about a generally vertical axis so that the passageway may be pivoted about the generally vertical axis between an in use position and a stored position in which it preferably extends along a side deck of the craft.
  • the passageway may thus be a rigid unitary construction if desired, or a multi-part construction as previously described.
  • the boarding ramp of the present invention thus provides a simple means of both mooring and providing access to a boat or hovercraft.
  • Fig. 1 is a side view of one embodiment of the present invention mounted on a hovercraft;
  • Fig. 2 is a schematic illustration of the double acting hydraulic ram and controlled bypass used for pivoting the embodiment of Fig. 1 relative to the hovercraft;
  • Fig. 3 is a side view of another embodiment of the present invention.
  • Fig. 4 is a plan view of the embodiment of Fig. 3.
  • a boarding ramp generally designated 1, which basically comprises two sections
  • one section 3 being provided with an electromagnet 7 for use in detachably securing the ramp to a mooring location, and the other section 5 being pivotally attached to the foredeck 9 of a hovercraft 11.
  • the ramp can of course be equally well pivotally attached to the deck of a boat for like use.
  • Said sections 3,5 of the boarding ramp 1 are pivotally attached together as at 13 with a double acting hydraulic ram pivotally connected to both of said section 3,5 so as to control the relative desired pivotal motion of said sections 3,5.
  • a urther double-acting hydraulic ram 17 is connected pivotally to both said other section 5 of the ramp 1 and to the hovercraft 11.
  • the hydraulic rams 15 and 17 are commonly controlled so that by remote energisation by the helmsman/pilot of the hovercraft, the boarding ramp can be moved from between a collapsed, stored position and an extended moored/ready for use position.
  • the hydraulic rams 13,15 can be separately controllable.
  • said one section 3 of the boarding ramp 1 provides a passageway having a planar walkway 19 to either side of which is provided a safety hand rail 21.
  • Said other section 5 provides a passageway having a planar walkway region 23 and an inclined walkway region 25, the inclined walkway region 25 having steps 27 which are adjustable either as desired or automatically to provide horizontal steps as and when the walkway is ready for use, thus facilitating loading and unloading of the hovercraft.
  • This other section 5 is also provided on each side with a safety handrail 21', the handrails 21,21' being foldable ie. collapsible as the ramp is pivoted to a closed stored position.
  • the boarding ramp 1 in its stored positions lies with the inclined walkway region 25 along the foredeck 9 and said one section 3 folded behind the planar region 23 of said other section 5.
  • the helmsman/pilot can activate the hydraulic rams
  • Fig. 1 wherein the electromagnet 7 is located over a ferromagnetic plate 31 at the mooring location 29.
  • the ramp 1 engages and is secured to plate 31 at the mooring location 29, the ramp 1 thus both providing for the unloading and loading of the hovercraft with people and/or freight, and securely mooring the hovercraft to the mooring location with the hovercraft being spaced therefrom so that it is safe from damage due to collision or rubbing against the offshore structure.
  • the electromagnet 7 is attached to said one section 3 of the ramp 1 by a universal joint
  • electromagnet can be secured in planar contact with plate 31 whilst the hovercraft can move in varying directions.
  • the hydraulic ram 17 is provided with a bypass 35, the throughflow cross-section of which is controlled by a solenoid valve 37 - see Fig. 2.
  • the solenoid valve 37 can be energised to open the bypass 35.
  • the hydraulic ram 15 can thus then freely extend and retract as necessary, allowing the ramp 1 to pivot relative to the foredeck 9 as the sea state dictates.
  • a restrictor not shown
  • the mere dimensioning of the bypass 35 By restricting the flow of the hydraulic fluid through the bypass 35 by the provision of a restrictor (not shown) or the mere dimensioning of the bypass 35, the free extension/retraction movement of the ram 15 is dampened.
  • FIG. 3 and 4 of the accompanying drawings illustrate another embodiment of the present invention.
  • the major difference between this embodiment and the embodiment of Figs. 1 and 2 lies in the arrangement of the end region 39 of the passageway
  • passageway 41 is a unitary construction though if desired it could be alternatively constructed in a number of hinged sections controlled as in the embodiment of Fig. 1. Said one end region
  • the passageway 41 is mounted adjacent the bow region 45 of the hovercraft 47, to one side of the hovercraft.
  • the passageway 41 can be pivoted about the substantially vertical axis 43 to be along the side deck of the hovercraft 47.
  • This pivotal motion about the substantially vertical axis 43 is effected by a motor driven rack and pinion arrangement 49.
  • said one end region 39 of the passageway 41 is mounted on a substantially vertical axle 43' which is rotatably mounted in the decking of the hovercraft 47.
  • the axle 43' has a pinion 51 formed coaxially therewith, which pinion 51 meshes with an axially slidable rack 53, the rack 53 being axially movable under the action of one or more double acting hydraulic rams (not illustrated).
  • pinion 51 meshes with an axially slidable rack 53, the rack 53 being axially movable under the action of one or more double acting hydraulic rams (not illustrated).
  • a brace 55 can secure the passageway 41 in this position to avoid the rack and pinion 49 from being subjected to any large forces which may arise due to the sea state when moored.
  • the passageway 41 has fixed railings 57, and the free end region 59 carries a pivotal magnet arrangement 61.
  • the railings can be collapsible.
  • the magnet arrangement 61 has five electromagnets 63 located in a structure which has a generally planar upper surface
  • a double acting hydraulic ram 67 extends, between the fixed railings 57 and the magnet arrangement 61 to control the position of the planar surface 65 as the passageway is moved to and from an in use moored position.
  • a further double acting hydraulic ram 69 extends between the fixed railings 57 and said axle 43' to pivot the passageway generally vertically as required.
  • a telescopic section 71 of -12- raili ⁇ g extends between the fixed railing 57 and the axle 43 ' .
  • the passageway 41 is stored along the side deck of the hovercraft - see Fig. 4.
  • the passageway can be secured in this stowed position by suitable retaining means and/or by the magnet arrangement 61 gripping an appropriate deck location and/or by the effective locking of the hydraulic rams in appropriate positions.
  • the passageway 41 When a destination is approached the passageway 41 is released and hydraulic ram 69 retracted to slightly lift the passageway 41 off the deck.
  • the rack and pinion arrangement 49 is then activated to pivot the passageway 41 to project over the bow region of the hovercraft. Then by control of the respective rams 67 and 69 the desired elevation of the free end region of the passageway 41 and the magnet arrangement 61 is selected.
  • Fig 3 showing the normal range and the extreme possible positions.
  • the magnet arrangement can be engaged with the quay 73 and energised the relevant rams 67 and 69 passing into open circuit as previously described with regard to Fig. 2.
  • the brace 55 can then be attached and adjusted in length.
  • the present invention thus provides a simple but effective boarding/mooring facility which can be advantageously used with both a boat and a hovercraft, but especially with a hovercraft utilised for ferrying people and freight to and from an offshore structure.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

La présente invention concerne une rampe d'embarquement (1), laquelle, lors de son utilisation, est fixée pivotante sur un bateau (11), et comprend un passage (3, 5) de forme allongée. Une région d'extrémité de ce passage (3, 5) est fixée pivotante sur le bateau (11) et un vérin hydraulique (17) est relié au passage (3, 5) et au bateau (11). Ce vérin (17), lors de l'utilisation de la rampe, commande le mouvement pivotant du passage (3, 5) et un aimant (31) est disposé sur l'autre région d'extrémité du passage (3, 5) pour permettre de fixer cette autre région dudit passage (3, 5) sur un emplacement de déchargement.
PCT/GB1995/002538 1995-10-28 1995-10-28 Ameliorations se rapportant a des rampes d'embarquement Ceased WO1997016341A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU37069/95A AU3706995A (en) 1995-10-28 1995-10-28 Improvements relating to boarding ramps
PCT/GB1995/002538 WO1997016341A1 (fr) 1995-10-28 1995-10-28 Ameliorations se rapportant a des rampes d'embarquement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GB1995/002538 WO1997016341A1 (fr) 1995-10-28 1995-10-28 Ameliorations se rapportant a des rampes d'embarquement

Publications (1)

Publication Number Publication Date
WO1997016341A1 true WO1997016341A1 (fr) 1997-05-09

Family

ID=10769340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1995/002538 Ceased WO1997016341A1 (fr) 1995-10-28 1995-10-28 Ameliorations se rapportant a des rampes d'embarquement

Country Status (2)

Country Link
AU (1) AU3706995A (fr)
WO (1) WO1997016341A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1008263C2 (nl) * 1998-02-10 1999-08-11 Verhoef Aluminium Scheepsbouw Toegangsinstallatie voor een schip.
EP2130757A1 (fr) * 2008-06-05 2009-12-09 Tonic Dispositif de transfert entre un ponton fixe et un élément flottant notamment pour personnes à mobilité réduite
US20150197315A1 (en) * 2012-09-25 2015-07-16 European Intelligence B.V. Mooring Device for Mooring a Ship

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2116898A5 (fr) * 1970-12-04 1972-07-21 Bennes Marrel Dispositif de porte-arriere relevable pour un navire,notamment prevu pour le transport de vehicules automobiles
FR2192967A1 (fr) * 1972-07-24 1974-02-15 Mac Gregor International Sa
GB2246992A (en) * 1991-09-20 1992-02-19 Alan Cundall Gangway

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2116898A5 (fr) * 1970-12-04 1972-07-21 Bennes Marrel Dispositif de porte-arriere relevable pour un navire,notamment prevu pour le transport de vehicules automobiles
FR2192967A1 (fr) * 1972-07-24 1974-02-15 Mac Gregor International Sa
GB2246992A (en) * 1991-09-20 1992-02-19 Alan Cundall Gangway

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1008263C2 (nl) * 1998-02-10 1999-08-11 Verhoef Aluminium Scheepsbouw Toegangsinstallatie voor een schip.
EP2130757A1 (fr) * 2008-06-05 2009-12-09 Tonic Dispositif de transfert entre un ponton fixe et un élément flottant notamment pour personnes à mobilité réduite
FR2932157A1 (fr) * 2008-06-05 2009-12-11 Tonic Dispositif de transfert entre un ponton fixe et un element notamment pour personnes a mobilite reduite
US20150197315A1 (en) * 2012-09-25 2015-07-16 European Intelligence B.V. Mooring Device for Mooring a Ship
US9387909B2 (en) * 2012-09-25 2016-07-12 European Intelligence B.V. Mooring device for mooring a ship

Also Published As

Publication number Publication date
AU3706995A (en) 1997-05-22

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