EP0067669A2 - Dispositif d'accès - Google Patents

Dispositif d'accès Download PDF

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Publication number
EP0067669A2
EP0067669A2 EP82303000A EP82303000A EP0067669A2 EP 0067669 A2 EP0067669 A2 EP 0067669A2 EP 82303000 A EP82303000 A EP 82303000A EP 82303000 A EP82303000 A EP 82303000A EP 0067669 A2 EP0067669 A2 EP 0067669A2
Authority
EP
European Patent Office
Prior art keywords
linkage
work station
base
ship
platform
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Withdrawn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
EP82303000A
Other languages
German (de)
English (en)
Other versions
EP0067669A3 (fr
Inventor
Norman Brocklebank
Kenneth Deighton
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.)
Priestman Brothers Ltd
Original Assignee
Priestman Brothers Ltd
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 Priestman Brothers Ltd filed Critical Priestman Brothers Ltd
Publication of EP0067669A2 publication Critical patent/EP0067669A2/fr
Publication of EP0067669A3 publication Critical patent/EP0067669A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms
    • 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
    • B63B27/16—Arrangement of ship-based loading or unloading equipment for cargo or passengers of lifts or hoists
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/02—Devices for facilitating retrieval of floating objects, e.g. for recovering crafts from water

Definitions

  • the present invention relates to devices for enabling access to be gained, for work or other purposes, to a relatively moving structure.
  • a walkway which is telescopically extendable, pivotably on a tower structure so that, for example, one end of the walkway can be fixed to an entry port to a ship, the pivotal mounting and telescopic extendability of the walkway allowing movement of the ship to be accommodated without manual adjustment of the walkway.
  • the device may be powered so that it can be accurately positioned until locked onto the ship and the controls then freed to enable the device to accommodate movement of the ship.
  • Such a device has only limited applications, generally being capable of use only where the walkway can be positioned approximately horizontally to enable personnel to walk along it. There is a need therefore for a device having greater utility.
  • Inspection platforms mounted by means of an articulated or telescopic arm on a vehicle are well known for enabling work to be carried out on overhead lighting, external walls of buildings etc.
  • such a device may be required in order to unload cargo or personnel from a ship onto a wharf or external repair work may be required to be carried out oi. a ship or oil rig from an adjacent wharf or ship respectively.
  • An obvious difficulty lies in maintaining the platform or work station in a fixed position relative to the vessel, particularly where this position has to be maintained for anything other than a very short period of time.
  • a device for enabling access to a relatively moving structure comprising a base; a work platform or station; a linkage supporting the work platform or station from the base, the linkage being adjustable controllably to vary the position of the work platform or station relative to the base; means for attaching the work platform or station to the structure; and means for automatically freeing the linkage when the work platform or station is attached in position on the structure.
  • the base of the device may comprise a mobile chassis or can be mounted in fixed position depending upon the application and the linkage may comprise a conventional hydraulically powered articulated and/or telescopic boom which is rotatable on the base and to which the work platform or station may also be pivotally mounted.
  • the means for locking the work platform or station in a fixed position relative to the structure comprises a suction pad through which air is withdrawn by a vacuum pump located on the work platform.
  • a suction pad through which air is withdrawn by a vacuum pump located on the work platform.
  • one or more electro-magnets may be used or cooperating mechanical connector elements on the structure and work platform or station could be provided to positively locate the platform or station in position on the structure.
  • the particular means employed will vary depending upon the application, for example, although an electromagnetic system may be usable when work on the side of ships hulls, particularly if the magnetic fields were damaging to, for example navigational equipment on board the ship, then a suction pad or "limpet" would be preferable.
  • the means for freeing the linkage from control will comprise a probe, contact of which with the structure is arranged to disable the control of the linkage and also initiate attachment to the structure.
  • the platform is thereafter free to follow the motion of the moving structure.
  • a device according to the present invention has application wherever there is relative motion between a first point and a second point so that, for example, whilst it has been mentioned above that a ship might be inspected from a jetty or wharf, a similar device could be used on board a ship to inspect or work on harbour walls, sea platforms or other ships etc.
  • the device has a base 1 which comprises a conventional cylindrical plinth 2 such as is to be found on a sea-going crane, the plinth 2 supporting a slewing ring 3 and being secured to a wharf or jetty 4 in use.
  • a support platform 5 is mounted on the slewing ring and carries a hydraulic pump and driving motor (not shown) in order to rotate the support platform on the plinth and also to operate hydraulic rams 6 and 7 which control the motion of a pair of arms 8, 9.
  • the arms 8 and 9 form parts of a pivotal linkage, the arm 8 being pivotally mounted at one end on the support platform 5 and the arm 9 being pivotally connected at one end to the other end of the arm 8.
  • a work platform 10 At the free end of the arm 9, again pivotally mounted, is a work platform 10.
  • the work platform 10 has a frame structure to provide hand-rail type support for personnel.
  • the platform 10 is fully articulated relative to the arm 8, allowing for side- to-side and for-aft swing movement as well as rotation of the platform about its central axis 11. Rotation about the central axis will preferbaly be limited to say plus or minus 55°.
  • the work platform is also fully insulated from the arms 8 and 9 and thus from the base.
  • the platform 10 carries a suction pad or "limpet" 12 which is operable by a vacuum pump (not shown) located on the platform 10,
  • a probe 13 extends below the limpet 12 to disable the control of the arms 8, 9 and also to initiate suction of the limpet 12 for attachment purposes.
  • the probe 13 is arranged so that on initial contact with the structure to which the platform is to be attached hydraulic control of the arms 8 and 9 is gradually released through valves, allowing a gradual "float” down onto the deck of the structure. As the probe is depressed further a second operation is initiated to apply vacuum to the limpet or suction pad causing the device to lock onto the underlying deck.
  • Suction is provided through a vacuum pump and an evacuated accumulator and in order to avoid problems with slight leakage through the lip of the limpet, adhesion can be maintained by intermittent start up of the pump and accumulator system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Ship Loading And Unloading (AREA)
EP82303000A 1981-06-11 1982-06-10 Dispositif d'accès Withdrawn EP0067669A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8117902 1981-06-11
GB8117902 1981-06-11

Publications (2)

Publication Number Publication Date
EP0067669A2 true EP0067669A2 (fr) 1982-12-22
EP0067669A3 EP0067669A3 (fr) 1983-07-20

Family

ID=10522432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82303000A Withdrawn EP0067669A3 (fr) 1981-06-11 1982-06-10 Dispositif d'accès

Country Status (3)

Country Link
EP (1) EP0067669A3 (fr)
JP (1) JPS582200A (fr)
NO (1) NO821932L (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525903A1 (fr) * 1991-07-15 1993-02-03 SPEZIALFAHRZEUGAUFBAU UND KABELTECHNIK GmbH Plateforme de travail mobile avec position de travail flexible
WO1999055579A1 (fr) 1998-04-28 1999-11-04 Oceantech Plc Appareil stabilise monte sur un navire et procede de commande correspondant
GB2499834A (en) * 2012-03-01 2013-09-04 Martin Pownall Transporter platform with base plate and cage for attachment to a hydraulic arm
EP2897856A1 (fr) * 2012-09-18 2015-07-29 Rolf Rohden Corps flottant doté d'une grue
US9162736B2 (en) 2007-01-19 2015-10-20 Ronald J. Thibodaux Apparatus for performing overhead work using air-propelled vessel with articulating member

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001425B (zh) * 2010-11-24 2013-04-24 沈阳工业大学 一种自动打捞装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572165A (en) * 1947-06-19 1951-10-23 John N Locki Floating hoist
FR1117129A (fr) * 1954-03-31 1956-05-17 Thomas Adshead And Son Ltd Véhicule à poste de travail surélevé réglable
GB920474A (en) * 1961-06-16 1963-03-06 Edmond Eric Himel A device for transferring persons from a relatively stable platform to a more rapidly moving platform
GB1136971A (en) * 1964-12-11 1968-12-18 Non Corposive Metal Products L Improvements in gangways for ships
FR2171968A2 (en) * 1972-02-17 1973-09-28 Petroles Cie Francaise Anti-pounding device - eg used in loading and unloading supply vessels at oil drilling platform or ship
US3794187A (en) * 1972-11-22 1974-02-26 R Begault System and apparatus for transfer of personnel/cargo between a marine platform and crew boat
FR1605468A (en) * 1968-10-24 1976-05-14 Swivel arm-type ship boarding mechanism - has cage at end of arm which pivots about inboard end in direction parallel to hull to lift cage to deck level

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572165A (en) * 1947-06-19 1951-10-23 John N Locki Floating hoist
FR1117129A (fr) * 1954-03-31 1956-05-17 Thomas Adshead And Son Ltd Véhicule à poste de travail surélevé réglable
GB920474A (en) * 1961-06-16 1963-03-06 Edmond Eric Himel A device for transferring persons from a relatively stable platform to a more rapidly moving platform
GB1136971A (en) * 1964-12-11 1968-12-18 Non Corposive Metal Products L Improvements in gangways for ships
FR1605468A (en) * 1968-10-24 1976-05-14 Swivel arm-type ship boarding mechanism - has cage at end of arm which pivots about inboard end in direction parallel to hull to lift cage to deck level
FR2171968A2 (en) * 1972-02-17 1973-09-28 Petroles Cie Francaise Anti-pounding device - eg used in loading and unloading supply vessels at oil drilling platform or ship
US3794187A (en) * 1972-11-22 1974-02-26 R Begault System and apparatus for transfer of personnel/cargo between a marine platform and crew boat

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525903A1 (fr) * 1991-07-15 1993-02-03 SPEZIALFAHRZEUGAUFBAU UND KABELTECHNIK GmbH Plateforme de travail mobile avec position de travail flexible
WO1999055579A1 (fr) 1998-04-28 1999-11-04 Oceantech Plc Appareil stabilise monte sur un navire et procede de commande correspondant
US6659703B1 (en) 1998-04-28 2003-12-09 Oceantech Plc Stabilized ship-borne access apparatus and control method for the same
US9162736B2 (en) 2007-01-19 2015-10-20 Ronald J. Thibodaux Apparatus for performing overhead work using air-propelled vessel with articulating member
GB2499834A (en) * 2012-03-01 2013-09-04 Martin Pownall Transporter platform with base plate and cage for attachment to a hydraulic arm
EP2897856A1 (fr) * 2012-09-18 2015-07-29 Rolf Rohden Corps flottant doté d'une grue

Also Published As

Publication number Publication date
JPS582200A (ja) 1983-01-07
EP0067669A3 (fr) 1983-07-20
NO821932L (no) 1982-12-13

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Effective date: 19850430

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Inventor name: BROCKLEBANK, NORMAN

Inventor name: DEIGHTON, KENNETH