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WO2017155413A1 - Plate-forme élévatrice pliable - Google Patents

Plate-forme élévatrice pliable Download PDF

Info

Publication number
WO2017155413A1
WO2017155413A1 PCT/NO2017/000007 NO2017000007W WO2017155413A1 WO 2017155413 A1 WO2017155413 A1 WO 2017155413A1 NO 2017000007 W NO2017000007 W NO 2017000007W WO 2017155413 A1 WO2017155413 A1 WO 2017155413A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
foldable
hinge
legs
platform
Prior art date
Application number
PCT/NO2017/000007
Other languages
English (en)
Inventor
Liv REBNORD
Helge JOHNSEN
Original Assignee
Helijo As
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 Helijo As filed Critical Helijo As
Priority to DK17716665.9T priority Critical patent/DK3423390T3/da
Priority to EP17716665.9A priority patent/EP3423390B1/fr
Publication of WO2017155413A1 publication Critical patent/WO2017155413A1/fr

Links

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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/18—Scaffolds primarily resting on the ground adjustable in height
    • E04G1/20—Scaffolds comprising upright members and provision for supporting cross-members or platforms at different positions therealong
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
    • B66B9/187—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure with a liftway specially adapted for temporary connection to a building or other structure
    • 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
    • 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/36—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes
    • 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/38—Scaffolds partly supported by the building
    • 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
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/16—Platforms on, or for use on, ladders, e.g. liftable or lowerable 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
    • E04G2001/248—Inclined struts

Definitions

  • the present invention relates to the technical field of platform lifts, more specifically to portable and collapsible platform lift that can easily be transported and erected along a wall to support workers under construction, maintenance and repair work of the wall.
  • US patent 2966957 A and US patent application US 2002/0178683 Al discloses a collapsible scaffold supporting structure in the form of a bipod arranged parallel to a wall and a horizontal bar extending perpendicularly from the top of said bipod, leaning against said wall.
  • Two or more scaffolds provides a plurality of horizontal bars that can be used as a support for planks.
  • International patent application WO 2009/033287 Al shows a power lift with a platform slidingly attached to one or two vertical support members, and movable along the support member.
  • a horizontal bar extends from the upper part of the support member to a wall. Further, guy wires are shown for stabilizing the support member.
  • European patent EP 1032746 Bl US patent application US 2007/0068733 Al and US patent US 4640385 A, all show different types of working platforms.
  • FR patent 2607535 relates to scaffolding comprising : - two poles intended to be erected vertically in front of a wall, at the same distance from the latter, each pole comprising a tripod for resting on the ground and props for bearing on the wall, - two slides which can each move along a respective pole by virtue of a mechanism making it possible, using an actuating device, to make it move up or down, under load, along the pole, a bracket which is positioned between the pole and the wall being fixed to each slide, - and an oblong platform resting on the brackets in order to form a working surface of adjustable height.
  • NL 1026646 shows a platform comprising at least two uprights and at least one floor plate and at least one of the uprights forms a mast for a carriage to move along.
  • the carriage supports the floor plate.
  • the apparatus preferably comprises two masts on either side of the floor plate and a transmission is provided between the carriage gears.
  • US 2004/0020717 patent application shows a self-raising platform assembly comprising at least one mast along which a platform may be moved up or down including the following : a) a base element with a supporting plate connected to a jack and several stabilizer arms incorporating height adjustment, b) modular mast sections made from rectangular sections with openings cut out to form steps and bars to allow adjacent sections to be bolted together, c) hydraulically operated ram lifting mechanism with hooks to engage steps on the mast to raise and lower the platform, d) a plastic lined sleeve on the platform which slides against the mast and, e) a modular platform which can be lengthened or widened by adding additional modules.
  • a main object of the present invention is to disclose a platform lift that solves the remaining problems mentioned under prior art.
  • the invention is a
  • foldable platform lift (1) comprising;
  • said foldable platform lift (1) is arranged to operate in a working position wherein;
  • said working platform (G) is arranged between said foldable scaffolding (2) and said wall (W), and
  • said actuator (5) is arranged for moving said working platform (G) vertically up and down along said wall (W), below said hinge (K),
  • said first and second legs (Bl, B2) are inclined downwardly and outwardly from said hinge (K) with opposite angles about a vertical axis running through said hinge (K),
  • said first wall bar (A, Al) arranged for being in contact with said wall in a first end, and said foldable scaffolding (2) a second end,
  • said first and second legs (Bl, B2) are folded towards each other about said pivot (P), [0011] - and that the first wall bar (A, Al) is removed or displaced from the wall (W).
  • first and second hinge elements (Kl, K2) of a hinge (K) to upper ends of first and second legs (Bl, B2), respectively,
  • a main advantage of the current invention is that he operator or worker in the platform is free to operate on any part of the wall, since there are no obstacles between the platform and the wall in the working area of the platform.
  • An advantage of the invention is that the scaffolding is easier to transport and rig than scaffoldings according to prior art.
  • a stable scaffolding with a movable working platform can be established in a short time.
  • the scaffolding can be disassembled in the reverse way. The legs can then e.g. be lifted onto the roof of a car, truck body etc., and be transported to the next working location.
  • the working platform can move freely up and down between the wall and the foldable scaffolding, allowing the operator to perform the required work without any obstacles of the scaffolding. This also improves the stability of the foldable platform lift.
  • FIG. 1, 2, 3 and 4 illustrate different embodiments of a foldable platform lift according to the invention.
  • FIG.5 and 6 illustrate details of an upper part of the foldable platform lift according to embodiments of the invention.
  • FIG. 1, 2, 3 and 4 alternative embodiments of the foldable platform lift (1) in a working position are illustrated.
  • working position is meant if not specifically stated differently.
  • the house wall (W) has been indicated to make the embodiments easier to understand.
  • the wall is not part of the invention.
  • the foldable scaffolding (2) with the first and second legs (Bl, B2), and the hinge (K) interconnecting the legs (Bl, B2) has been raised up along the wall (W).
  • the legs (Bl, B2) are inclined downwardly and outwardly from the hinge (K) with opposite angles about a vertical axis running through the hinge (K).
  • the legs (Bl, B2) form part of an upright triangle.
  • At least one wall bar (A, Al, A2) is in contact with the wall (W) and the foldable scaffolding (2) in first and second ends, respectively.
  • the at least one wall bar (A, Al, A2) is preferably arranged in the upper part of the foldable scaffolding (2), and ensures that there is an open space between the wall (W) and the foldable scaffolding (2).
  • a working platform (G) is movably arranged in this open space.
  • the working platform (G) can be moved up and down alongside the wall (W), and gives the person in the working platform (G) freedom to perform the necessary work on the wall (W), within the upper and lower limits of the lift.
  • the actuator (5) is arranged for moving the working platform (G) vertically up and down along the wall (W). Since the working platform (G) is attached to the foldable scaffolding (2) via the actuator (5), the weight of the platform (G) inside the foldable scaffolding (2) will result in a force acting towards the wall (W). Thus, the wall bar (A, Al, A2) between the wall (W) and the foldable scaffolding (2) will push against the wall (W).
  • a further common feature of the embodiments is that the foldable platform lift (1) is also arranged to operate in transport position where the first and second legs (Bl, B2) are folded towards each other about the pivot (P) of the hinge (K) and that the first wall bar (A, Al) is removed or displaced from the wall (W).
  • the working platform is detached from the foldable scaffolding (2), and can be handled separately.
  • the foldable platform lift (1) can easily be transported to the next working location and raised to the working position described above.
  • the wall bar (A, Al, A2) can be arranged in different places of relative the foldable scaffolding (2) in the working position.
  • the first wall bar (A) is separating the hinge (K) from the wall (W), and arranged above the working platform (G). This has been illustrated in Fig. 2.
  • the foldable platform lift (1) then comprises a middle interconnection bar (C) fixed horizontally in first and second ends to respective the first and second legs (Bl, B2) and two wall bars (Al, A2) extending from respective ends of the middle interconnection bar (C) towards, and in contact with the wall (W).
  • a distance (Ad) between the wall bars (A, Al, A2) is larger than a length (Gd) of the working platform (G) in a longitudinal direction of the middle interconnection bar (C).
  • the two embodiments above may also be combined to have both a wall bar (A) in the top of the scaffolding (2) and pairs of one more middle interconnection bars (C) with corresponding wall bars (Al, A2) below the hinge (K).
  • the foldable platform lift (1) comprises a lower interconnection means (F) fixed horizontally in first and second ends to respective lower ends of the first and second legs (Bl, B2) as illustrated in the Figures 1 to 4.
  • This lower interconnection means (F) is preferably arranged close to the ground and is used to join the two legs (Bl, B2) and secure them relative each other to prevent the foldable scaffolding from expanding when the working position has been established.
  • the lower interconnection means (F) can be arranged for one or more leg separation distances, to allow different angles of the legs (Bl, B2) relative each other, and thus different heights of the hinge (K).
  • the actuator (5) comprises a winch (5) as illustrated in Fig. l.
  • a first end of the winch (5) is connected to the hinge (K) and a second end is connected to the working platform (G).
  • the winch can lift the working platform up and down relative the hinge (K) when operated.
  • a first end of the winch (5) is connected to the lower interconnection means (F) and a second end is connected to the working platform (G).
  • the foldable platform lift (1) comprises a pulley (E) fixed to the hinge (K) and wherein a line of the winch (5) runs over the pulley (E).
  • the foldable platform lift (1) obtains an increased stability due to its unique construction.
  • the weight of the platform results in a downward force component acting on the hinge (K), increasing stability in the horizontal direction parallel to the wall (W), i.e. the platform will push the middle of the scaffolding down .
  • the weight of the platform results in an inward force component acting on the hinge (K), perpendicular to the first force component, increasing stability in the horizontal direction perpendicular to the wall, i.e. the platform will push the scaffolding towards the wall (W).
  • one or more of the wall bars (Al, Al, A2) are fixed to the wall (W) to prevent the scaffolding from leaving the wall (W) when forces act on the foldable platform lift (1) away from the wall (W).
  • the wall bars are then equipped with a suitable wall mount that can be fixed to the wall with screws or similar fixing means.
  • a further stabilization element that can also be used with any of the
  • Fig. 1 is one or more rods or guy ropes between the foldable scaffolding and the ground.
  • stiff rods are illustrated in Fig. 1, ensuring that the foldable scaffolding (2) is kept in place relative the ground.
  • the first and second legs (Bl, B2) are inclined downwardly and outwardly from the hinge (K) with similar but opposite angles ( ⁇ 1, ⁇ 2) about a vertical axis running through the hinge (K) as illustrated in Fig. 3.
  • the legs Bl, B2) then form part of an isosceles triangle, where the top is a fictive point above the hinge (K). This provides a well-balanced structure with equal load on the two legs (Bl, B2).
  • the foldable platform lift (1) comprises in an embodiment that can be combined with any of the embodiments above, an adjustable longitudinal extension element (X) arranged in the lower end of the first or second legs (Bl, B2) as shown in Fig. 1.
  • the extension element will adapt the respective leg to the height of the ground to ensure that the main part of the foldable scaffolding will be stable in the working position.
  • the extension allows the legs to form part of an isosceles triangle, as described above.
  • At least one of the first and second legs are comprises two or more leg sections arranged to be longitudinally interconnected.
  • the sections are telescopic.
  • Sectional and/or telescopic legs allows the foldable scaffolding to be compacted in the transport position.
  • hinge (K) and first wall bar (A) will be described. These embodiments can be combined with the embodiments above where the wall bar (A) is arranged above the working platform (G).
  • the first wall bar (A) coincides with the pivot (P) of the hinge (K). This means that the hinge (K) rotates about the wall bar
  • Fig. 5 and 6 illustrate two different hinges in combination with a pulley, the wall bar (A) and the first and second legs (Bl, B2).
  • the hinges are illustrated from different sides and in different positions, such as working and transporting, as will be understood by a person skilled in the art.
  • hinge elements (Kl, K2) of the hinge (K) are fixed to leg mounts (LI, L2) arranged to separate the first and second legs (Bl, B2) away from the pivot (P) and provide a mounting base for the hinge (K).
  • the hinge elements (Kl, K2) may be integrated with the leg mounts (LI, L2).
  • Figure 5 illustrate leg mounts (LI, L2) that separate the legs (Bl, B2) more from the pivot (P) than the leg mounts (LI, L2) in Fig. 6.
  • the supporting structure of the pulley (E) is fixed to the wall bar (A) which is also the pivot (P) of the hinge (K).
  • This has the advantage that the foldable platform lift (1) can be easily assembled and disassembled with a limited number of parts. Further, the required stiffness for the pulley support can be obtained by utilizing available parts, instead of adding additional reinforcing parts to the scaffolding.
  • the foldable platform lift (1) comprises a pulley (E) with a supporting structure fixed to arms of the hinge (K).
  • the working platform (G) comprises an operator panel (O) allowing the operator to control the height of the working platform (G).
  • the operator panel controls the operation of the actuator (5).
  • the foldable platform lift (1) comprises holding means arranged for keeping the working platform (W) adjacent to the legs (Bl, B2) when the working platform (W) moves up and down.
  • the holding means are in an embodiment arranged to slide in the longitudinal direction of the working platform (W) to adapt varying distance between the legs (Bl, B2) at different heights.
  • the foldable platform lift (1) comprises in an embodiment locking means to lock the platform to the legs (Bl, B2) when the working platform (G) is in the desired position.
  • These locking means could be manually operated, such as e.g. the use of bolts or ropes, or controlled from the operator panel (O).
  • the locking means can be automatically activated as long as the actuator is not activated, and de-activated when the actuator (5) is operated.
  • the working platform (G) may have fences with doors as illustrated in Fig. 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Movable Scaffolding (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Ladders (AREA)

Abstract

L'invention concerne une plateforme élévatrice pliable (1) placée pour fonctionner dans une position de travail dans laquelle : des premier et deuxième pieds (Bl, B2) sont inclinés vers le bas et vers l'extérieur à partir d'une charnière supérieure (K) avec des angles opposés autour d'un axe vertical traversant la charnière ; une première barre de paroi (A, A1) est en contact avec une paroi à une première extrémité et avec l'échafaudage pliable (2) à une deuxième extrémité ; une plate-forme de travail (G) est disposée entre l'échafaudage pliable (2) et la paroi ; et un actionneur (5) est disposé de sorte à déplacer verticalement la plate-forme de travail (G), de haut en bas et de bas en haut, le long de la paroi, en dessous de la charnière (K). Dans une position de transport, les premier et deuxième pieds (B1, B2) sont repliés l'un vers l'autre autour du pivot (P).
PCT/NO2017/000007 2016-03-07 2017-02-27 Plate-forme élévatrice pliable WO2017155413A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK17716665.9T DK3423390T3 (da) 2016-03-07 2017-02-27 Foldelig platformlift
EP17716665.9A EP3423390B1 (fr) 2016-03-07 2017-02-27 Plate-forme élévatrice pliable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20160389 2016-03-07
NO20160389A NO341549B1 (en) 2016-03-07 2016-03-07 A foldable platform lift

Publications (1)

Publication Number Publication Date
WO2017155413A1 true WO2017155413A1 (fr) 2017-09-14

Family

ID=56292866

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2017/000007 WO2017155413A1 (fr) 2016-03-07 2017-02-27 Plate-forme élévatrice pliable

Country Status (4)

Country Link
EP (1) EP3423390B1 (fr)
DK (1) DK3423390T3 (fr)
NO (1) NO341549B1 (fr)
WO (1) WO2017155413A1 (fr)

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US388924A (en) * 1888-09-04 Combined scaffold and elevator
US2966957A (en) 1958-01-10 1961-01-03 Herbert A Ireland Scaffold supporting structure
US4640385A (en) 1985-06-21 1987-02-03 Underhill Philip O Portable scaffolding
FR2607535A1 (fr) 1986-11-28 1988-06-03 Trouillet Andre Echafaudage a plate-forme mobile
US6182791B1 (en) 1998-06-19 2001-02-06 James L. Cope Adjustable scaffolding and lift carriage and support member therefor
JP2001248295A (ja) * 2000-03-03 2001-09-14 Sg:Kk 昇降式作業装置
EP1032746B1 (fr) 1997-04-08 2002-01-30 Horst Laug Support de travail a usages multiples
US20020178683A1 (en) 1996-06-17 2002-12-05 Phillips Robert M. Flat folding scaffold system with shrubbery shelter
US20040020717A1 (en) 2000-09-11 2004-02-05 Robillard Jean G Self-raising platform assembly
NL1026646C2 (nl) 2004-07-13 2006-01-19 Harm Jan De Ruiter Inrichting voor bouw of onderhoud van gevels.
US20070056802A1 (en) * 2005-09-13 2007-03-15 Joseph Taberah Scaffolding
US20070068733A1 (en) 2005-09-23 2007-03-29 Barry Schlecht Scaffold structure
WO2009033287A1 (fr) 2007-09-14 2009-03-19 Joseph Teberah Système d'élévation de puissance
WO2010043975A1 (fr) 2008-10-17 2010-04-22 Hekimo, S.R.O Echafaudage

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US388924A (en) * 1888-09-04 Combined scaffold and elevator
US2966957A (en) 1958-01-10 1961-01-03 Herbert A Ireland Scaffold supporting structure
US4640385A (en) 1985-06-21 1987-02-03 Underhill Philip O Portable scaffolding
FR2607535A1 (fr) 1986-11-28 1988-06-03 Trouillet Andre Echafaudage a plate-forme mobile
US20020178683A1 (en) 1996-06-17 2002-12-05 Phillips Robert M. Flat folding scaffold system with shrubbery shelter
EP1032746B1 (fr) 1997-04-08 2002-01-30 Horst Laug Support de travail a usages multiples
US6182791B1 (en) 1998-06-19 2001-02-06 James L. Cope Adjustable scaffolding and lift carriage and support member therefor
JP2001248295A (ja) * 2000-03-03 2001-09-14 Sg:Kk 昇降式作業装置
US20040020717A1 (en) 2000-09-11 2004-02-05 Robillard Jean G Self-raising platform assembly
NL1026646C2 (nl) 2004-07-13 2006-01-19 Harm Jan De Ruiter Inrichting voor bouw of onderhoud van gevels.
US20070056802A1 (en) * 2005-09-13 2007-03-15 Joseph Taberah Scaffolding
US20070068733A1 (en) 2005-09-23 2007-03-29 Barry Schlecht Scaffold structure
WO2009033287A1 (fr) 2007-09-14 2009-03-19 Joseph Teberah Système d'élévation de puissance
US20120018253A1 (en) * 2007-09-14 2012-01-26 Joseph Taberah Power lift system
WO2010043975A1 (fr) 2008-10-17 2010-04-22 Hekimo, S.R.O Echafaudage

Also Published As

Publication number Publication date
NO20160389A1 (en) 2017-09-08
NO341549B1 (en) 2017-12-04
EP3423390A1 (fr) 2019-01-09
DK3423390T3 (da) 2020-03-23
EP3423390B1 (fr) 2019-12-18

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