EP0079146A1 - Système de plate-forme vertical pouvant être levé et pouvant descendre - Google Patents

Système de plate-forme vertical pouvant être levé et pouvant descendre Download PDF

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Publication number
EP0079146A1
EP0079146A1 EP82305572A EP82305572A EP0079146A1 EP 0079146 A1 EP0079146 A1 EP 0079146A1 EP 82305572 A EP82305572 A EP 82305572A EP 82305572 A EP82305572 A EP 82305572A EP 0079146 A1 EP0079146 A1 EP 0079146A1
Authority
EP
European Patent Office
Prior art keywords
platform
platforms
arms
connections
pivotted
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Withdrawn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
EP82305572A
Other languages
German (de)
English (en)
Inventor
Barry Craig Eccleston
Alexander Stewart Sinclair
Michael Elliot
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.)
A Monk & Co PLC
Original Assignee
A Monk & Co PLC
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 A Monk & Co PLC filed Critical A Monk & Co PLC
Publication of EP0079146A1 publication Critical patent/EP0079146A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/22—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by roofs or ceilings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables

Definitions

  • the invention relates to raisable and lowerable vertical platform systems wherein two or (usually) more platforms at different levels are required for servicing of or access to different levels of a structure, for example supports of an off-shore oil rig platform.
  • a platform system can be lowered downwards from a safe height under the platform to desired lower heights alongside support legs. It is particularly desirable for such a platform system to have several working levels, or individual platforms, to serve a substantial portion, if not virtually all, of the required height of a support leg at the same time.
  • a specific aspect hereof concerns a twist-resistant platform-to-platform connection, preferably using braced arms or frames pivotted together and to respective platforms to move from shallow-V (extended) to very narrow -V or adjacent (retracted) relative positions viewed-from a side, preferably with interconnecting rigid guide means for their mutual pivots.
  • Such a relatively rigid overall structure is highly advantageous, at least by way of reducing securement requirements between each individual platform and stanchions of the support legs.
  • the whole platform structure when fitted with suitable catches between platforms the whole platform structure is readily retained in its raised and retracted state, and capable of sequential extension and lowering of its platforms.
  • Preferred catches release only when engaged by a said frame at its maximum open (shallowest V) position. Then, in effect the platforms extend sequentially, top-most first, under gravity as cables, belts or chains are released or unwound.
  • twist resistant vertically extensible and retractable platforms will be secured in a readily releasable manner relative to stanchions or the like, say using a caliper-like arrangement of arms hinged to a platform or to each other at that platform for selectively engaging about a stanchion or the like.
  • caliper-like arms should be readily pinned together and unpinned quickly for raising of the platform system with the arms folded back towards, against or within the the platforms.
  • a further aspect hereof concerns a self-stowing ladder or ladders from platform to platform that will not obstruct raising of the platform system, and may conveniently comprise, or each comprise, a ladder pivotted to an upper platform and constrained at a lower platform to be slidable in guides along the platform.
  • another aspect hereof concerns providing rails or runway beams to support our vertical platform system and allowed its movement between support legs or the like or at least for adjusting its position relative to a particular support leg.
  • the rails or runway beams themselves shall be traversable in couplings, preferably automatic couplings as in our copending application no. 8033682, relative to members of or affixed to the oil rig platform itself, i.e. between support legs.
  • vertical platform systems hereof can find application to servicing structures other than oil rigs, for example bridges and at least other structures having discrete vertical supports.
  • Wind and/or wave tolerance is assisted by utilising a mesh or otherwise open-work or perforate individual platform deckingo
  • I-section beams 10 are shown secured below or constituting structural components of a deck structure 11. Bottom flanges 12 of the beams 10 are engaged by rollers 13 of trolleys 14 capable of traversing movement along the beams 10. Twist-tolerant suspensions 15 from the trolleys14 support further roller-trolleys 16 of generally C-shape with rollers 17 under top flanges 18 of I-section rails or runway beams 19.
  • the rails or runway beams 19 can traverse through the roller-trolleys 16 and are shown as upper parts of a first platform 20 comprising side beams 21 having upper and lower rails 22, 23 and vertical and diagonal ties and braces 24, 25. Transverse ties 26, 27 and diagonal bracings 28 are provided at ends of the beams 21 and, as required or desired, at intermediate positions defined by verticals 24 of the side beams 21.
  • the preferred platform construction 20 is light-weight and of an open work nature that is rigid but does not present high wind/ wave resistance, especially when its framework is covered by a mesh or lattice type working surface or decking. Apart from the latter, the preferred platform construction is similar to that of our copending application no. 8032991.
  • the platform 20 has winches 29 for purposes that will become apparent.
  • each side of the platform 20 Near each end of each side of the platform 20 are pivot joints 31 for upper ends of arms 32 capable of extending downwardly from the platform 20.
  • the other, lower, ends of the arms 32 are pivotted at 33 to upper ends of arms 34 whose other lower ends are pivotted at 35 to sides of a second platform 30.
  • the second platform 30 has side beams 31 and end/intermediate cross coupling 36, 37, 38 similar to the platform 20, and is shown as being of the construction of our aforementioned application no. 8032991 by way of saddle brackets 39.
  • the arms 32 and 34 are shown interconnected by a generally rectangular frame 40 along side members 41 of which the arm-to-arm pivots 33 are movable between maximum and minimum spacings corresponding to shallow and sharp acute angle V-relationships of the arms 32 and 34 in turn corresponding to extension and retraction of the second platform 30 below the first platform 20.
  • Cross connections 42 of the side members 41 usefully define the maximum and minimum spacings of the arm pivots 33.
  • platforms 50 are shown successively below the second platform 30 and are of generally similar construction to the latter with generally similar suspensions by-arms 52, 54 and frames 60.
  • interconnection arrangements 31 to 42 and 51 to 60 are twist-resistant by virtue of their overall frame-like structure, but it is preferred, see Figure 4 for the sets of arms 32, 34 and 52, 54 to be sides of individual frames cross tied together (37, 58) and braced diagonally (59).
  • FIG. 3 More detail is shown of three successive platforms 20, 30, 50.
  • the platform side beams 21' are shown without diagonal braces at least in the'interests of clarity for other features.
  • couplings 71 are shown for a cross- bracing system of ties 72 at intervals between beams 21' in their verticals.
  • ties 72A-D are below the tops of the beams 21' and usefully serve to support spaced parallel members 73 spanning three such intermediate tird 72B-D to define supporting guides for rollers or wheels 74 on lower ends of ladders 75 pivotted 76 at their upper ends to the next of the ties 72A in the next upper platform.
  • edge supports are shown at 77, 78 for open mesh flooring, the upper rails of the beams 21' and end connections acting as a toe rail.
  • Preferred latches from platform to platform are shown only at the right hand side of Figure 3 (detail Y) and in Figure 7.
  • a bracket 86 on the end vertical of the platform side beam carries pivotally at 87 a catch lever 88 counterweighted 89 at lower extension 90 to pivot its end hook 91 onto a catch pin 92 of the next lower platform.
  • the catch lever has an adjustable projection 93 as afforded by a lock nutted bolt or the like that will be engaged by an upwardly extending arm (34 or 54) as the latter reaches its limit position for platform spacing. That will disengage the catch end hook 91 and allow the next lower platform to be extended.
  • the counterweight 89 may conveniently act as a stop limiting movement of the catch lever 89 by engagement with a downwardly extending arm (32, 52).
  • FIGS 8A and 8B Details of mutual pivotting of arms 32, 34 or 52, 54 appear in Figures 8A and 8B where a side member of the frame 40' or 60' is shown at 101 as a channel section with its web slotted 102 to accommodate slidingly a pivot pin 103 captive by head parts 104 and a journal bush 104 for the upwardly extending arm 32, 52.
  • the pivot pin 103 also carries a journal bush 105 for the lower arm 34, 54.
  • plate 106 of drop-over latch 107 pivoted at 108 to the side member 101.
  • the latches 107 serve to lock the successive platforms hereof in their lowered or extended positions, but are readily releasable, preferably via short ladders 110 shown only at one side of Figure 3 for convenience.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
  • Types And Forms Of Lifts (AREA)
  • Movable Scaffolding (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Emergency Lowering Means (AREA)
EP82305572A 1981-11-10 1982-10-20 Système de plate-forme vertical pouvant être levé et pouvant descendre Withdrawn EP0079146A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8133916 1981-11-10
GB8133916 1981-11-10

Publications (1)

Publication Number Publication Date
EP0079146A1 true EP0079146A1 (fr) 1983-05-18

Family

ID=10525773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82305572A Withdrawn EP0079146A1 (fr) 1981-11-10 1982-10-20 Système de plate-forme vertical pouvant être levé et pouvant descendre

Country Status (4)

Country Link
EP (1) EP0079146A1 (fr)
AU (1) AU8981082A (fr)
GB (1) GB2109769B (fr)
NO (1) NO823686L (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002642A1 (fr) * 1983-12-09 1985-06-20 Henry Reed Echafaudage
CN104229674A (zh) * 2014-09-04 2014-12-24 苏州美罗升降机械有限公司 一种升降机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2165209A (en) * 1984-10-03 1986-04-09 Buma Engineering Co Ltd Mobile rig for providing access to the exterior of upright structures
DE19936217A1 (de) * 1999-08-04 2001-03-15 Mobitech Gmbh Laufschiene für Fassadenfahreinrichtungen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6910177U (de) * 1969-03-10 1969-11-20 Mannesmann Leichtbau Gmbh Zusammensetzbarer arbeitslift
US3951232A (en) * 1972-12-05 1976-04-20 Toyo Shutter Co., Ltd. Multifloor-type escape bridge apparatus for use in multistory building
GB2009830A (en) * 1977-11-15 1979-06-20 Petren R Scaffold erection method and system
GB2022533A (en) * 1978-05-31 1979-12-19 Riggers Ltd Inspection or maintenance cradle
US4253548A (en) * 1979-10-31 1981-03-03 Beeche Gregory L Folding scaffold system
GB2066870A (en) * 1979-10-13 1981-07-15 Monk A & Co Ltd Overhead working platforms

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6910177U (de) * 1969-03-10 1969-11-20 Mannesmann Leichtbau Gmbh Zusammensetzbarer arbeitslift
US3951232A (en) * 1972-12-05 1976-04-20 Toyo Shutter Co., Ltd. Multifloor-type escape bridge apparatus for use in multistory building
GB2009830A (en) * 1977-11-15 1979-06-20 Petren R Scaffold erection method and system
GB2022533A (en) * 1978-05-31 1979-12-19 Riggers Ltd Inspection or maintenance cradle
GB2066870A (en) * 1979-10-13 1981-07-15 Monk A & Co Ltd Overhead working platforms
US4253548A (en) * 1979-10-31 1981-03-03 Beeche Gregory L Folding scaffold system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002642A1 (fr) * 1983-12-09 1985-06-20 Henry Reed Echafaudage
CN104229674A (zh) * 2014-09-04 2014-12-24 苏州美罗升降机械有限公司 一种升降机

Also Published As

Publication number Publication date
AU8981082A (en) 1983-05-19
NO823686L (no) 1983-05-11
GB2109769A (en) 1983-06-08
GB2109769B (en) 1986-01-29

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR IT LI LU NL SE

17P Request for examination filed

Effective date: 19831014

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19841129

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ECCLESTON, BARRY CRAIG

Inventor name: SINCLAIR, ALEXANDER STEWART

Inventor name: ELLIOT, MICHAEL