EP2911971B1 - Système de plateforme de levage - Google Patents

Système de plateforme de levage Download PDF

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Publication number
EP2911971B1
EP2911971B1 EP13848766.5A EP13848766A EP2911971B1 EP 2911971 B1 EP2911971 B1 EP 2911971B1 EP 13848766 A EP13848766 A EP 13848766A EP 2911971 B1 EP2911971 B1 EP 2911971B1
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EP
European Patent Office
Prior art keywords
beams
roof
cables
building
platform system
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EP13848766.5A
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German (de)
English (en)
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EP2911971A1 (fr
EP2911971A4 (fr
Inventor
Mark Alan PRUSKAUER
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Individual
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Priority claimed from PCT/US2013/066719 external-priority patent/WO2014066705A1/fr
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Publication of EP2911971A4 publication Critical patent/EP2911971A4/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/20—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures
    • B66C23/205—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures for use on top of roofs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/605—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes scaffolding winshes
    • 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
    • E04G3/34—Mobile scaffolds; Scaffolds with mobile platforms characterised by supporting structures provided on the roofs

Definitions

  • the present invention relates to hoists, specifically a hoisting platform system configured to hoist objects along a side of a building.
  • the present invention will be applicable in a variety of ways to a variety of industries.
  • the invention may be used in the field of building construction, the hoisting platform system is configured to be adapted to pick up a load on the ground and to deliver the load to a higher floor of a building under construction, thereby safely delivering materials to various floors of a building under construction.
  • An aerial work platform also known as an aerial device, elevating work platform (EWP), or mobile elevating work platform (MEWP) is a mechanical device used to provide temporary access for people or equipment to inaccessible areas, usually at height.
  • EWP elevating work platform
  • MEWP mobile elevating work platform
  • aerial work platforms may provide additional features beyond transport and access, including being equipped with electrical outlets or compressed air connectors for power tools. They may also be equipped with specialist equipment, such as carrying frames for window glass.
  • the inventions heretofore known suffer from a number of disadvantages, including but not limited to being limited in placement (especially on roofs), requiring modification of the floor/roof where it is installed, being expensive, not accelerating construction speed, reducing or failing to improve construction efficiency, being dangerous, not improving revenue/profits of construction companies, not making it easier to meet project deadlines, impacting the structure, requiring substantial rework of the structure to which it is applied when removed therefrom, not permitting use of additional types of equipment during construction that otherwise could not be used, and/or not reducing the need for use of large/expensive cranes and the like and similar disadvantages that would occur to one of ordinary skill in the art upon review of this application.
  • the present invention has been developed in response to the present state of the art, and in particular, in response to the problems and needs in the art that have not yet been fully solved by currently available platform hoisting systems. Accordingly, the present invention has been developed to provide a platform hoisting system for transportation between floors of a building.
  • the invention provides a hoisting platform system according to claim 1.
  • the roof lift configured to be coupled to a roof of a building.
  • the roof lift may include a pair of beams that may be resting on the roof and may be jutting out from a side of the roof.
  • the roof lift may include a winch that may be coupled to and positioned over the beams.
  • the winch may be a powered winch that may be disposed on a platform that may be extending upwardly from jutting ends of the beams.
  • the platform may be resting on a pair of a-frame struts, each a-frame strut may be coupled to a respective beam.
  • the roof lift may include a mounting structure that may be extending upwardly from the beams with a plurality of cables that may be coupled to and extending from a top region of the mounting structure.
  • the mounting structure may include a cross-beam that may be fixedly coupling struts that may be extending upwardly from each of the beams.
  • the struts may be extending upwardly from each of the beams form a-frames.
  • the beams may be I-beams.
  • the plurality of cables may include tension adjustment devices.
  • the roof lift may include a retractable deck.
  • the roof lift may include a plurality of anchors that may be coupled to ends of the cables.
  • the system may include a roof lift configured to couple to a roof of a building.
  • the roof lift may include a pair of beams that may be resting on the roof and may be jutting out from a side of the roof.
  • the roof lift may include a powered winch that may be coupled to and positioned over jutting portions of the beams.
  • the roof lift may include a set of rigid struts that may be extending upwardly from the beams and may be coupled to each other at a top region of the struts by a cross-beam.
  • the roof lift may include a plurality of tension-adjustable cables that may be coupled to and extending from a top region of the struts.
  • the roof lift may include a plurality of anchors that may be coupled to distal ends of the cables and configured to anchor the cables to a top surface of a roof.
  • the roof lift may include a retractable deck that may be disposed between the jutting portions of the beams.
  • the hoisting platform system may include a plurality of floor decks with retractable decks configured to be disposed below the roof lift in an array, configured to be coupled to various floors of a building and to extend outwardly therefrom.
  • references throughout this specification to an "embodiment,” an “example” or similar language means that a particular feature, structure, characteristic, or combinations thereof described in connection with the embodiment is included in at least one embodiment of the present invention.
  • appearances of the phrases an "embodiment,” an “example,” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment, to different embodiments, or to one or more of the figures.
  • reference to the wording "embodiment,” “example” or the like, for two or more features, elements, etc. does not mean that the features are necessarily related, dissimilar, the same, etc.
  • FIG. 1 is a side elevational view of a roof lift of a hoisting platform system.
  • a roof lift 12 having a winch 22, a floor deck 30 and coupling structures configured to couple the roof lift 12 to a top surface of a roof 14.
  • the roof lift 12 is able to couple to a roof 14 of a structure 16, thereby permitting access to every level of the structure 16 including the rooftop.
  • the roof lift 12 is able to couple strongly to the rooftop at a low cost and with strength sufficient to allow the winch to transport large loads to the various floors of the structure 16.
  • the hoisting platform system 10 is configured to be anchored to a floor-surface (floor) of a building or structure, including but not limited to a top surface or roof 14 of a structure 16, especially of a building under construction or repair.
  • the roof lift 12 is able to couple to a structure without wedging itself between adjacent surfaces and therefore does not require a second surface against which to brace itself.
  • the illustrated hosting platform system 10 is coupled to a roof 14 of a building 16 or structure.
  • the hoisting platform system 10 may be configured to be coupled to other structures, such as but not limited to a surface of a bridge extending off a side thereof.
  • the hoisting platform system 10 is configured to be attached to a structure 16 able to support the hoisting platform system 10, typically a high-rise building 16.
  • the illustrated hoisting platform system 10 includes a mounting structure 24 configured to be anchored to a roof top of a building 16.
  • the illustrated mounting structure 24 is coupled to a pair of I-beams 18 that jut out beyond the surface of the roof 14.
  • the I-beams 18 further support a winch 22 configured to lift objects from an area below the roof lift 12,
  • the roof lift 12 is disposed jutting over a side 20 of a building 16, wherein the floor deck 30 is configured to lift objects along the side 20 of the building 16 to various levels and floors of the building 16.
  • the illustrated mounting structure 24 is configured to support the roof lift 12 during operational use.
  • the illustrated mounting structure 24 includes a pair of upright poles 34 configured to apply downward pressure to the I-beams 18 during operational use, thereby securing the I-beams 18 to the surface 14 of the building 16 and providing a counter force to force applied to the winch 22 by lifted objects.
  • the mounting structure 24 includes a plurality cables 26 configured to securely anchor the mounting structure 24 to a surface, generally a rooftop 14 of a building 16.
  • the plurality of cables 26 are configured to couple the pair of upright poles 34 about a top end 28 thereof.
  • the plurality of cables 26 anchor to a rooftop 14 of a structure 16.
  • the illustrated cables 26 anchor by being coupled to eye-bolt anchors that are fixedly coupled to the surface 14.
  • the illustrated cables 26 include tension adjustment devices 32 (the illustrated devices are turnbuckles) that allow for adjusting tension of the cables 26 after the anchors are in place. Accordingly, the tension may be increased and/or decreased as appropriate for proper anchoring, which may vary between uses based on expected winch loads.
  • the illustrated plurality of cables 26 extends from top ends 28 of the pair of upright poles 34 rearwardly to anchor a distance away from the rest of the roof lift 12.
  • the illustrated upright poles 34 include counterbalancing braces 70 extending forward from the upright poles 34 (though such braces could extend rearwardly as well or alternatively).
  • the plurality of cables 26 includes a plurality of anchors 40 configured to securely couple the cables 26 to a rooftop structure 14 of a building 16. In various non-limiting examples, the plurality of cables extend towards a front, a back, and or side (or combinations thereof) of an upright pole.
  • a hoisting platform system 10 which is usable in the construction of high rise buildings. Included in the system 10 are two I-beams 18 (or other, similar, support structures, base(s) or platform(s)) which are mounted on a higher floor of the building under construction which has been finished already.
  • the two I-beams 18 are mounted in a cantilevered fashion with one section jutting forward from the higher floor and another section being attached to the higher floor by one or more structures described herein.
  • On the forward section there is mounted a pair of A-frames having a cross beam mounted at their tops which in turn has a winch mounted thereon.
  • a movable transfer deck 30 is located between the I's of the two I-beams and can be moved to a position interior of the building once a load is placed thereon.
  • the winch 22 can also be located on the higher floor and idler sheaves can be used on top of the cross beam.
  • the winch 22 may be a hydraulic winch which is powered by a hydraulic pump which in turn may be powered by an internal combustion engine.
  • a hoisting platform system 10 adapted to pick up a load on the ground and to deliver the load to a higher floor of a building under construction.
  • a system may include two stationary I-beams 18 installed on said higher floor, said I-beams jutting forward from an edge of said higher floor in a cantilever fashion and having forward sections and rear sections, said rear sections of said I-beams 18 are attached to said higher floor.
  • the hoisting platform 10 may be coupled to a floor or roof of a building using one or more of the structures described herein.
  • a structure 24 that attaches in a cantilever manner onto floors or roof 14 of a building 16. Such may also cantilever off a basement, bridge, and etc. There may be two poles applying downward pressure on the structure by attaching connections to roof/surface/ground/etc. There may be two strut support poles that attach to the hoist by a pair of horizontal struts. There may be a generally horizontal support pole between the two upright poles and such may be attached along a top region of one or more of the support poles.
  • support devices that extend at an angle of declination from top regions of the support poles and that splay at varying radial angles (when viewed from the top) that attach the tops of the upright poles to a surface (roof, floor, etc).
  • a pair (or more) of upright poles 34 coupled to a pair of hoist support struts 18 that are connected to a hoist.
  • the upright poles 34 are coupled together by a support structure 24 therebetween that stabilizes the pole tops in the direction of each of the other poles.
  • These support structures may be cables that extend out in each cardinal direction from the pole tops and may be secured to a surface on which the hoist support struts are coupled, the hoist support struts themselves, and or the poles.
  • the support structures can include tension adjustment devices to adjust the effective length and/or support provided by each structure, such may include one or more turnbuckles, cinches, knots systems, ratcheting systems, and the like and combinations thereof.
  • a system of floor decks and roof lift(s) may be utilized instead of or in cooperation with a crane to increase the speed and efficiency of construction.
  • a hoisting platform system 10 is much less expensive than a crane, faster to setup and less expensive to operate. This increases speed of construction and decreases costs.
  • Hoisting platform systems that are not able to lift materials to the roof may still require assistance from a crane and/or other roof access structures/devices and thus may fail to realize the full potential of speed and savings that may be achieved with a hoist platform system.
  • FIG. 2 is a rear elevational view of a roof lift of a hoisting platform system.
  • a mounting structure 24 including a pole 34, a cross-beam 38, a plurality of cables 26, a pair of I-beams 18, and a plurality of anchors 80.
  • the illustrated mounting structure 24 is configured to securely support and anchor a floor deck to a rooftop of a building.
  • the mounting structure 24 is configured to support a floor deck extending over a side of a building, wherein a winch coupled to the floor deck is configured to lift objects along a side of a building to various floors and levels of a building.
  • the illustrated mounting structure 24 includes a pole 34 coupled to a pair of beams 18 anchored to a rooftop of a building.
  • the mounting structure 24 includes a plurality of cables 26 extending sideways from their associated poles and are configured to support and couple to the pair of upright poles 34 about a top end 28 thereof.
  • the plurality of cables 26 includes a plurality of anchors 80 configured to securely anchor the plurality of cables 26 and the pair of upright poles 34 to the rooftop of a building.
  • the plurality of cables 26 is configured to be anchored to the rooftop of a building, wherein the plurality of cables 26 extend from the rooftop upwardly towards a top end of a first upright pole 34, then extending across to a top end of a second upright pole, and then extending downwardly towards the rooftop of the building and anchoring thereto.
  • the illustrated plurality of cables 26 is configured to be positioned perpendicularly to a pair of support struts of a roof attachment system.
  • the plurality of cables 26 each include a tension adjustment device 32 to adjust the tension of the cable after installation thereof.
  • the illustrated plurality of cables include a pair of side-anchored cables 42 positioned at a radial angle substantially orthogonal to the primary axis of the beams.
  • Anchors 80 are eye-bolts secured to the top surface of the illustrated roof.
  • Anchors may include anchors/fasteners (wedge anchors, sleeve anchors, screw anchors, drop-in anchors, machine-screw anchors, expansion anchors, lag shield anchors, nail-it anchors, metal split anchors, split drive anchors, strike anchors, and the like and combinations thereof), rivets, concrete anchors, and the like and combinations thereof.
  • the anchors will generally include some structure for coupling to cables, such as but not limited to an eye-bolt, clip, clamp, tie, weld or the like or combinations thereof.
  • the anchors may include device(s) for selectable coupling to cables such that the cables may be detached therefrom, such as but not limited to with carabiners.
  • device(s) for selectable coupling to cables such as but not limited to with carabiners.
  • the coupling will, in most cases be such that tools are required to detach the cable(s) from the anchors.
  • the illustrated mounting structure 24 includes a cross-beam 38 fixedly coupling each of the upright poles 34 at a top region 28 thereof.
  • the cross-beam 38 transmits force between the upright structures, thereby allowing them to share support and to support each other.
  • the mounting structure 24 includes a pair of rigid a-frame struts extending upwardly from the pair of beams.
  • the mounting structure 24 includes a cross-beam 38 fixedly coupling the pair of rigid a-frame struts extending upwardly from each of the pair of beams 18.
  • FIG. 3 is a side elevational view of a roof lift of a hoisting platform system, according to one embodiment of the invention.
  • a hoisting platform system 10 including a roof lift 12, a hydraulic winch 46, a retractable floor deck 50, and a mounting structure 24.
  • the hoisting platform system 10 is configured to be anchored to a floor of a building or structure.
  • the hoisting platform system 10 is also configured to be coupled to a rooftop 14 of a building or structure 16.
  • the hoisting platform system 10 may be configured to be coupled to a side of a bridge.
  • the hoisting platform system 10 is configured to be attached to a structure able to support the hoisting platform system 10, typically a high-rise building.
  • the hoisting platform system 10 includes a roof lift 12 coupled to a roof 14 of a building 16.
  • the illustrated hoisting platform system 10 includes a mounting structure 24 configured to support and anchor a hydraulic winch 46 to a rooftop of a building.
  • the illustrated hydraulic winch 46 is configured to lift objects on a floor deck 30 from an area below the winch 46.
  • the winch 46 and floor deck 30 are configured to be disposed over a side 20 of a building 16, wherein the floor deck 30 is configured to lift objects along the side 20 of the building 16 to various levels and floors of the building.
  • Winches 46 may be powered by systems other than hydraulic systems, such as but not limited to electrical, combustion engine, and the like and combinations thereof. Power may be supplied to the winch through connection to a power grid (i.e. being plugged in), electrical connection to a motor, connection to a hydraulic system, and the like and combinations thereof.
  • the illustrated mounting structure 24 is configured to support the winch 46 during operational use.
  • the mounting structure 24 includes a pair of rigid a-frame support struts 36 configured to apply downward pressure to the winch 46 during operational use.
  • the mounting structure 24 includes a plurality cables 26 configured to securely anchor the mounting structure 24 to a rooftop 14 of a building 16.
  • the plurality of cables 26 are configured to couple the pair of rigid a-frame support struts 36 about a top end 28 thereof.
  • the plurality of cables 26 includes a plurality of anchors 80 configured to anchor the mounting structure 24 to a rooftop 14 of a building 16.
  • the mounting structure 24 is configured to couple a pair of I-beam web supports 18 to the winch 46, thereby securing the winch 46 to the rooftop 14 of a building 16.
  • the illustrated plurality of cables 26 extend sideways from a top end 18 of the pair of rigid a-frame support struts 36 in a splayed manner (i.e. the anchors on each side are distanced from each other front to back).
  • the plurality of cables 26 extend outwardly from an exterior side of the pair of rigid a-frame support struts 36. It may be that the plurality of cables 26 extend upwardly from the rooftop of a building, up to a top end 28 of a first rigid a-frame support structure 36 and then across to a second rigid a-frame support structure, and then extending downwardly and anchoring into the rooftop 14 of a building 16, Cables may be coupled to rigid support structures by eyelets, bolts, welds, and the like and combinations thereof.
  • the plurality of cables 26 include a pair of rear-anchored cables 40 positioned opposite jutting ends of the beams and a pair of side-anchored cables 42 positioned at a radial angle substantially orthogonal to the primary axis of the
  • the illustrated hoisting platform system 10 includes a retractable floor deck 50 (movable transfer deck) coupled to the mounting structure 24 and disposed opposite of the hydraulic winch 46.
  • the removable floor deck 50 provides a resting surface on which to place objects lifted up to the roof using the winch, allows for detachment from the winch without dropping he object and may assist in laterally moving objects lifted up by the hydraulic winch.
  • the illustrated hydraulic winch 46 is coupled to a retractable floor deck 50 coupled to the I-beam web supports 18, and configured to selectably retract the deck when not in use.
  • the retractable floor deck 50 is in communication with an electric variable chain drive unit configured to retract and deploy the retractable deck; wherein the retractable floor deck includes a plurality of lifting points configured to retract and deploy the retractable floor deck for operational use.
  • FIG. 4 is a rear elevational view of a roof lift of a hoisting platform system, according to one embodiment of the invention.
  • a mounting structure 24 including a pair of rigid a-frame support struts 36, a plurality of cables 26, and a plurality of anchors 80.
  • the illustrated mounting structure 24 is configured to securely support and anchor a winch or hoist to a rooftop 14 of a building.
  • the mounting structure 24 is configured to support a winch or hoist that is configured to be extending over a side of a building, wherein the winch or hoist is configured to lift objects disposed thereon along a side of a building to various floors and levels of a building, including to other floor decks that are coupled to floors below the roof lift, wherein floor decks are disposed below the roof lift.
  • the illustrated mounting structure 24 includes a pair of rigid support struts 36 anchored to a rooftop 14 of a building by cables 26.
  • the mounting structure 24 includes a plurality of cables 26 that couple to the pair of rigid support struts 36 about a top end 28 thereof through eyelets.
  • the plurality of cables 26 includes a plurality of associated anchors 80 configured to securely anchor the plurality of cables 26 and the pair of rigid support struts 36 to the rooftop 14 of a building.
  • the plurality of cables 26 are configured to be anchored to the rooftop 14 of a building, wherein the plurality of cables 26 extend from the rooftop 14 upwardly towards a top end 28 of a first upright pole 34, then extending across to a top end of a second upright pole, and then extending downwardly towards the rooftop of the building and anchoring thereto.
  • the illustrated plurality of cables 26 may be configured to be positioned perpendicularly to a pair of rigid a-frame support struts 36 of a mounting structure 24.
  • the illustrated mounting structure 24 includes a pair of cables 26 each extending out from the pair of rigid a-frame support struts 36.
  • the illustrated plurality of cables 26 includes a pair of rear-anchored cables 40 positioned opposite jutting ends of the beams 18 and a pair of side-anchored cables 42 positioned at a radial angle substantially orthogonal to the primary axis of the beams 18.
  • the mounting structure 24 includes a cross-beam 38 fixedly coupling struts 34 extending upwardly from each of the beams 18
  • FIG. 5 is bottom perspective view of a hoisting platform system coupled to a side of a building, according to one embodiment of the invention.
  • a hoisting platform system 10 including a roof lift 12 having a winch 22, a mounting structure 24, and a plurality of floor decks 52 coupled to floors below the roof and disposed under the roof lift 12.
  • How the various structures are coupled to their associated surfaces is not illustrated, but for the floor decks below the roof lift, such may be accomplished with structures similar to those of the roof lift or by other structures, including but not limited to those described in US Patent No. 6,575,685 by Baxter, Sr. , which is incorporated herein by reference for its supporting teachings.
  • the illustrated hoisting platform system 10 is configured to permit transport of loads to and between floors of a building.
  • the hoisting platform system 10 includes a roof lift 12 coupled to a roof of a building.
  • the roof lift 12 includes a pair of beams resting on the roof and jutting out from a side of the roof.
  • the roof lift 12 includes a winch 22 coupled to and positioned over the beams.
  • the winch 22 is a powered winch disposed on a platform extending upwardly from jutting ends of the beams.
  • the platform is resting on a pair of a-frame struts, each a-frame strut is coupled to a respective beam.
  • the illustrated roof lift 12 includes a mounting structure 24 extending upwardly from the beams with a plurality of cables coupled to and extending from a top region of the mounting structure downwardly at an angle.
  • the mounting structure 24 includes a pole extending upwardly from each of the beams and a cross-beam fixedly coupling each of the poles at a top region thereof.
  • the mounting structure 24 includes a pair of rigid a-frame struts extending upwardly from the beams.
  • the mounting structure 24 includes a cross-beam fixedly coupling struts extending upwardly from each of the beams.
  • the plurality of cables are fixedly coupled to the roof.
  • the plurality of cables include tension adjustment devices.
  • the plurality of cables include a pair of rear-anchored cables positioned opposite jutting ends of the beams.
  • the plurality of cables includes a pair of side-anchored cables positioned at a radial angle substantially orthogonal to the primary axis of the beams.
  • the beams are I-beams.
  • the hoisting platform system 10 includes a floor deck disposed below the roof lift.
  • the floor deck is coupled to a floor of the building and extending outwardly therefrom.
  • the roof lift 12 includes a retractable deck.
  • the floor deck includes a retractable deck.
  • the hoisting platform system 10 includes a plurality of floor decks 52 coupled to different floors of the building and each disposed in an array below the roof lift.
  • FIG. 6 is a bottom perspective view of a roof lift coupled to a roof of a building, according to one embodiment of the invention.
  • a roof lift 12 of a hoisting platform system 10 including a winch 22 and a mounting structure 24, and a plurality of floor decks 52.
  • the illustrated roof lift 12 is configured to be coupled to a roof of a building.
  • the roof lift 12 includes a pair of beams resting on the roof and jutting out from a side of the roof.
  • the roof lift 12 includes a winch 22 coupled to and positioned over the beams.
  • the winch 22 is a powered winch disposed on a platform extending upwardly from jutting ends of the beams.
  • the platform is resting on a pair of a-frame struts, each a-frame strut is coupled to a respective beam.
  • the roof lift 12 includes a mounting structure 24 extending upwardly from the beams with a plurality of cables coupled to and extending from a top region of the mounting structure.
  • the mounting structure 24 includes a cross-beam fixedly coupling struts extending upwardly from each of the beams.
  • the struts are extending upwardly from each of the beams form a-frames.
  • the plurality of cables includes tension adjustment devices.
  • the roof lift 12 includes a plurality of anchors coupled to ends of the cables.
  • the hoisting platform system 10 includes a plurality of floor decks 52 coupled to different floors of the building and each disposed in an array below the roof lift.
  • FIG. 7 is a rear perspective view of a roof lift of a hoisting platform system coupled to a roof of a building, according to one embodiment of the invention.
  • a hoisting platform system 10 including a roof lift 12, a hydraulic winch 46, a mounting structure 24, and a floor deck 30.
  • the illustrated hoisting platform system 10 is configured to permit transport of loads to and between floors of a building.
  • the system 10 includes a roof lift 12 configured to couple to a roof 14 of a building.
  • the roof lift 12 includes a pair of beams 18 that are resting on the roof 14 and jutting out from a side of the roof.
  • the roof lift 12 includes a powered hydraulic winch 46 coupled to and positioned over jutting portions of the beams 18.
  • the roof lift 12 includes a set of rigid struts 34 extending upwardly from the beams 18 and coupled to each other at a top region 28 of the struts by a cross-beam 38.
  • the roof lift 12 includes a plurality of cables 26 coupled to and extending from a top region 28 of the struts 34.
  • the plurality of cables 26 each include a tension adjustment device 32 to adjust the tension of the cable after installation thereof.
  • the roof lift 12 includes a plurality of anchors coupled to distal ends of the cables and configured to anchor the cables to a top surface of a roof.
  • the roof lift 12 includes a retractable deck disposed between the jutting portions of the beams.
  • the hoisting platform system 10 includes a plurality of floor decks with retractable decks configured to be disposed below the roof lift in an array, configured to be coupled to various floors of a building and to extend outwardly therefrom.
  • the illustrated roof lift 12 includes four cables 26 extending from a top end 28 of a mounting structure 24, with a pair of cables extending sideways 42 and a pair of cables extending rearward 40.
  • a pair of rear-anchored cables 40 positioned opposite jutting ends of the beams and a pair of side-anchored cables 42 positioned at a radial angle substantially orthogonal (sideways) to the primary axis of the beams such that sideways support is provided to the structure sufficient to handle orthogonal force components during use, such as but not limited to those resulting from winds and/or swinging of lifted objects.
  • the mounting structure 24 includes a pair of upright poles 34 extending upwardly from associated I-beams 18 and a pair for forward extending diagonal support poles 70 coupling the top ends 28 of the upright poles 34 to more forward regions of the I-beams 18, effectively forming an asymmetric A-frame mounting structure.
  • the winch 46 is supported by a similarly (though opposite) asymmetric A-frame mounting structure.
  • safety rails configured to enhance the safety of the structure in the region of the roof lift that juts out beyond the edge of the roof.
  • roofs are homogenous concrete slabs with a roof lift attached thereto, it is understood that the illustrated roof lift may couple to more complicated and other various roof types.
  • support structures other than I-beams may be used to form a base of a roof lift.
  • the components of the device may be constructed of a variety of materials, including but not limited to metals, plastics, ceramics, fibers, composites and the like and combinations thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Claims (9)

  1. Système de plateforme de levage (10) configuré pour permettre le transport de charges jusqu'à des planchers d'un bâtiment et entre ceux-ci, comportant :
    a) un élévateur de toit (12) accouplé à un toit (14) d'un bâtiment, l'élévateur de toit comprenant une paire de poutres (18) reposant sur le toit et faisant saillie depuis un côté du toit, un treuil (22, 46) accouplé aux poutres et positionné par-dessus celles-ci, et une structure de montage (24) s'étendant vers le haut depuis les poutres ;
    b) un tablier de plancher (30, 50) disposé sous l'élévateur de toit, accouplé à un plancher du bâtiment et s'étendant vers l'extérieur depuis celui-ci, caractérisé en ce que la structure de montage comprend une pluralité de câbles accouplés à une région supérieure de la structure de montage et s'étendant depuis celle-ci vers le bas selon un angle, les câbles (36) étant accouplés de manière fixe au toit et un mât (34) s'étendant vers le haut depuis chacune des poutres et une traverse (38) accouplant de manière fixe chacun des mâts au niveau d'une région supérieure de ceux-ci et les câbles comprennent une paire de câbles à ancrage arrière (40) positionnés à l'opposé des extrémités faisant saillie des poutres et une paire de câbles à ancrage latéral (42) positionnés selon un angle radial de manière sensiblement orthogonale par rapport à l'axe primaire des poutres.
  2. Système de plateforme de levage selon la revendication 1, dans lequel les câbles comprennent des dispositifs de réglage de tension (32).
  3. Système de plateforme de levage selon la revendication 1 ou la revendication 2, dans lequel la structure de montage comprend une paire de montants de support rigides en A (36) s'étendant vers le haut depuis les poutres.
  4. Système de plateforme de levage selon l'une quelconque des revendications 1 à 3, dans lequel la structure de montage comprend une traverse (38) accouplant de manière fixe des montants de support s'étendant vers le haut depuis chacune des poutres.
  5. Système de plateforme de levage selon l'une quelconque des revendications 1 à 4, dans lequel les poutres sont des poutres en I (18).
  6. Système de plateforme de levage selon l'une quelconque des revendications 1 à 5, dans lequel le treuil est un treuil à moteur (46) qui est disposé sur une plateforme s'étendant vers le haut depuis les extrémités en saillie des poutres, la plateforme reposant sur une paire de montants de support en A, chaque montant de support en A étant accouplé à une poutre respective.
  7. Système de plateforme de levage selon l'une quelconque des revendications 1 à 6, dans lequel l'élévateur de toit comprend par ailleurs un tablier rétractable (50).
  8. Système de plateforme de levage selon la revendication 7, dans lequel le tablier de plancher (30) comprend un tablier rétractable (50).
  9. Système de plateforme de levage selon l'une quelconque des revendications 1 à 8, comportant par ailleurs une pluralité de tabliers de plancher (52) accouplés à différents planchers du bâtiment et chacun étant disposé en une rangée sous l'élévateur de toit (12).
EP13848766.5A 2012-10-25 2013-10-24 Système de plateforme de levage Active EP2911971B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261718505P 2012-10-25 2012-10-25
PCT/US2013/066719 WO2014066705A1 (fr) 2012-10-25 2013-10-24 Système de plateforme de levage

Publications (3)

Publication Number Publication Date
EP2911971A1 EP2911971A1 (fr) 2015-09-02
EP2911971A4 EP2911971A4 (fr) 2016-06-15
EP2911971B1 true EP2911971B1 (fr) 2018-10-10

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EP (1) EP2911971B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113047591B (zh) * 2021-03-19 2022-04-22 中建一局集团第五建筑有限公司 一种上拉式悬挑脚手架

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672920B1 (fr) * 1991-02-18 1993-04-23 Joly Gilles Dispositif modulaire de support pour echafaudage volant.
KR200207412Y1 (ko) * 1998-11-05 2001-01-15 신영호 공사용 곤도라 지지대
US6575685B2 (en) * 2001-08-08 2003-06-10 Kern C. A. Baxter, Sr. Hoisting platform system
CN200958016Y (zh) * 2006-04-01 2007-10-10 陈林 一种便携式轻便提升装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2911971A1 (fr) 2015-09-02
EP2911971A4 (fr) 2016-06-15

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