WO2012006694A1 - Système élévateur à utiliser dans un échafaudage - Google Patents

Système élévateur à utiliser dans un échafaudage Download PDF

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Publication number
WO2012006694A1
WO2012006694A1 PCT/BE2011/000048 BE2011000048W WO2012006694A1 WO 2012006694 A1 WO2012006694 A1 WO 2012006694A1 BE 2011000048 W BE2011000048 W BE 2011000048W WO 2012006694 A1 WO2012006694 A1 WO 2012006694A1
Authority
WO
WIPO (PCT)
Prior art keywords
scaffold
lift
guide
ledgers
lift unit
Prior art date
Application number
PCT/BE2011/000048
Other languages
English (en)
Inventor
Marc Keersmaekers
Original Assignee
Marc Keersmaekers
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
Priority claimed from BE2010/0442A external-priority patent/BE1019424A5/nl
Priority claimed from PCT/BE2011/000012 external-priority patent/WO2012006689A1/fr
Application filed by Marc Keersmaekers filed Critical Marc Keersmaekers
Publication of WO2012006694A1 publication Critical patent/WO2012006694A1/fr

Links

Classifications

    • 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
    • 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
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; 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
    • E04G1/18—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
    • 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
    • E04G1/22—Scaffolds having a platform on an extensible substructure, e.g. of telescopic type or with lazy-tongs mechanism
    • 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
    • E04G5/007—Devices and methods for erecting scaffolds, e.g. automatic scaffold erectors
    • 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
    • E04G2001/242—Scaffolds movable on wheels or tracks

Definitions

  • the present invention relates to the field of scaffolds.
  • the prior art comprises lift systems for use in combination with scaffolds .
  • Existing lift systems have different problems.
  • a lift can for instance be insufficiently stable or unstable in the scaffold.
  • the installation of a lift in a scaffold may also necessitate a substantial modification of the scaffolding material to the use of a determined lift, and this can affect different aspects of the scaffold device itself:
  • the lift may also be adapted substantially for use in combination with one specific scaffold type, so that the lift cannot be used for other scaffold types.
  • the lifts may also have a relatively low load-bearing capacity.
  • the safety aspect is also very important in the use of a scaffold lift.
  • fixing at a determined height of the first and second part refers to the height where the respective part, in particular the corresponding fixing means, are fixed to or couple to the scaffold. In typical embodiments this can correspond to a height of a ledger level of the scaffold.
  • a lift unit for ascending and descending in a scaffold comprising at least one scaffold section, each scaffold section being defined by uprights and ledgers which secure these uprights relative to each other, comprising
  • a distance control means or spacing means adapted to drive a variation in the distance between the first set of fixing means and the second set of fixing means.
  • the scaffold preferably comprises at least one scaffold section.
  • a scaffold section can be defined as comprising two sets of four ledgers which form equal rectangles which lie substantially in horizontal planes and which are connected to each other by means of (for instance four) uprights at their corresponding corners.
  • the lift unit can be adapted such that the relative distance between the first part and the second part can be increased and decreased.
  • the distance control means is thus preferably able to push apart the second part and the first part in driven manner. When only the first part is fixed, this increase in distance will involve the second part being pushed upward, while a decrease in distance will involve the second part being lowered relative to the first part. When only the second part is fixed, decreasing the distance between the second part and the first part corresponds to pulling the first part upward. An increase in distance between the first part and the second part involves in this case lowering of the first part under the second part.
  • the fixing can for instance take place at or on the ledgers and/or uprights of the scaffold.
  • the fixing means of this set Before a fixed first or second set of fixing means can be displaced again, it may be necessary for the fixing means of this set to be first released or uncoupled from the scaffold (for instance from the ledger or upright) .
  • the lift unit is further adapted during the ascending movement to fix the first set of fixing means each time at the previous height of the second set of fixing means .
  • the lift unit is further adapted during the ascending movement to cause the first set of fixing means to temporarily rise above the second set of fixing means before fixing the first set of fixing means.
  • the second part comprises a second set of fixing means which can together be fixed at determined heights in the scaffold.
  • the different heights can for instance correspond to the ledger levels of the upright or to the heights of the so- called rosette levels of a scaffold of the LayherTM type.
  • the different heights can for instance also correspond to the levels of holes present in the uprights, as described for instance in WO 2010/045693 in the name of applicant.
  • scaffolding material described therein is hereby included by reference from WO 2010/045693. All embodiments of the present invention can be implemented on the scaffolding material described in this application or can be used in the context of such scaffolding material.
  • the fixing means of the first and/or second set of fixing means can take different forms. They can for instance comprise coupling structures of the claw type. The coupling structures can for instance be hooked over the ledgers .
  • the fixing means of the same set are preferably arranged or can be temporarily positioned close to the uprights of a scaffold section/scaffold column.
  • fixing means can be coupled to the two ledgers coupled in each case to the respective uprights.
  • the first set and/or the second set of fixing means can be adapted for fixing to at least two ledgers at the same level of the same scaffold section.
  • the first set and/or the second set of fixing means can be adapted for fixing to the four ledgers at the same level of the same scaffold section.
  • Each of the fixing means of the first set and/or the second set of fixing means is adapted for fixing to two of the four ledgers at the same level of a scaffold section, wherein these two ledgers are adjacent.
  • Each of the fixing means of the first set and/or the second set of fixing means can be adapted for fixing to at least two ledgers at the same level of the same scaffold section.
  • the distance control means comprise one or more extendable and retractable cylinders. These cylinders can for instance be of the hydraulic, pneumatic or electrical type. In alternative embodiments the distance control means can comprise a scissor lift. In other further embodiments the distance control means can comprise one or more upright running chain, cable or belt systems on which the second set of fixing means is arranged. The second set of fixing means can for instance comprise four claws which are connected to four corresponding
  • drivable/windable chains or cables forming part of the spacing means.
  • the other outer end of the respective chains or cables can for instance be connected to a drivable wind- up mechanism which can complete the spacing means.
  • the wind- up mechanism is preferably situated under the work-floor of the climbing lift.
  • the four chains can be guided upward from below this work-floor and along the side of the work- floor or climbing lift. This can take place by means of at least one guide wheel for each of the chains or cables. These guide wheels are preferably situated on the outer side of the climbing lift. It should be noted that the length of such cables or chains need typically be no longer than that necessary to be able to reach the ledger level lying above. In determined embodiments these chains can however be much longer, and long enough to exceed a predetermined height of a scaffold.
  • the climbing lift once it has ascended to the upper level of a scaffold (for instance in the erection phase) , can function as a lift cage or lift system in accordance with any of the embodiments of the sixth aspect of the present invention, wherein the chains or cables serve as hoisting means.
  • the distance control means comprises one or more threaded spindles .
  • the above described spacing means respectively comprise four cylinders, endless chain or belt systems or threaded spindles which are substantially
  • endless chain or belt systems or threaded spindles can be mounted rotatably about a rotation point or rotation axis on the first part so that pivoting away around the rotation point/the rotation axis toward the interior of the scaffold section is possible.
  • endless chain or belt systems or threaded spindles can comprise the fixing means of the second set of fixing means.
  • the fixing means of the first and the second set of fixing means are adapted to be placed in a position which allows non-interference by obstacles during varying of the distance between the first set and the second set of fixing means.
  • the positions of the fixing means of the first and/or second set of fixing means can preferably change in such manner during ascent or descent, i.e. during varying of the distance therebetween.
  • These obstacles can comprise ledgers or consist of ledgers. These ledgers can form part of the level of the scaffold lying above/below. These obstacles can also comprise cotters or rosettes of for instance uprights of the LayherTM type.
  • These obstacles can also comprise coupling structures for ledgers arranged on the uprights of the scaffold.
  • These obstacles to the fixing means of the first or second part can also be respective fixing means of the second or first part .
  • the fixing means of the first and/or second set are adapted so that they can be retracted or pivot away toward the central part of the lift unit. They can also be rotated away, for instance in a substantially horizontal plane.
  • the fixing means of the first and second set of fixing means are adapted to be placed in a position which allows them to not obstruct each other during varying of the distance between the first set and the second set of fixing means, wherein the first set and the second set move adjacently of each other in height direction.
  • the upright further comprises guide means for guiding the movement of the lift unit along the uprights in the scaffold column.
  • the first part comprises a work- floor .
  • the second part comprises a work- floor .
  • the first part or the second part can further comprise a base platform comprising drive means of the distance control means.
  • the base platform can be comprised in the first part and the work-floor in the second part.
  • the base platform can be comprised in the second part and the work-floor in the first part.
  • a lift unit according to the first aspect of the present invention can further comprise displacing means adapted for coupling to a rail system, the rail system being adapted so that it can be arranged inside and through at least two horizontally adjacent scaffold sections for the purpose of guiding a horizontal displacement of the lift unit through the adjacent scaffold sections.
  • a method for ascending in a scaffold using a lift unit according to any of the embodiments of the first aspect of the present invention placed in this scaffold, the method comprising of
  • the difference in height between the first height and the second height is equal to the difference in height between the third height and the fourth height .
  • first height and the third height are the same and the second and the fourth height are the same .
  • first and the second height correspond to the height of two successive levels of ledgers in a scaffold.
  • difference in height between the first height and the second height is equal to the difference in height between the third height and the fourth height, and the first height and the third height are the same and the second and the fourth height are the same.
  • the difference in height between the first height and the second height is equal to the difference in height between the third height and the fourth height .
  • the first height and the third height are the same and the second and the fourth height are the same .
  • the first and the second height correspond to the height of two successive levels of ledgers in a scaffold.
  • the method further comprises of temporarily displacing the fixing means of the second part or the first part in order to avoid obstacles during upward or downward movement in the scaffold.
  • lowering of the second set of coupling means and the first set of coupling means by uncoupling the respective coupling structures from the corresponding ledgers can include a "lift-out” action which first raises the underside of the coupling structures of the respective fixing means to a level lying above the upper surface of the respective ledgers. This particularly when the coupling structures comprise one or more recesses at the bottom which have to be arranged over the respective ledgers .
  • a method for erecting a scaffold comprising of:
  • a method for dismantling a scaffold comprising of:
  • a lift system for use in a scaffold column of a scaffold, the scaffold column comprising at least one scaffold section, each scaffold section being substantially defined by
  • the lift system comprising:
  • a hoisting means which is adapted at a first outer end thereof to be coupled to the scaffold and is adapted at a second outer end thereof to be coupled, or is coupled to the lift unit, and which is adapted to control the ascent or descent of the lift unit in the scaffold.
  • the hoisting means is adapted for coupling to at least one ledger.
  • the hoisting means is adapted for coupling to a set of ledgers forming part of the same scaffold section at the same level.
  • the lift unit is substantially rectangular and the hoisting means comprises four chains or cables, each of the chains or cables being arranged at a first outer end close to the respective corners of the lift unit and at a second outer end on a respective claw adapted for coupling to at least one ledger.
  • each of the claws is adapted for coupling to a lengthwise ledger and adjacent width ledger close to the uprights corresponding to the corners of the lift unit.
  • the lift unit further comprises a work-floor and a guard element arranged between each chain or cable and the work-floor at the position of the movement space of a workman on the work- floor during use.
  • the lift system comprises a frame adapted for mounting on a part of the scaffold and adapted to bear one or more hoisting means internally on a scaffold column.
  • the hoisting means is/are preferably adapted for coupling at the first outer end thereof to the frame.
  • the hoisting means comprises a hoist .
  • the hoisting means comprises a reverse hoist.
  • the scaffold sections are defined substantially by uprights and a lower set and an upper set of ledgers respectively connecting the uprights to each other at the bottom and at the top, and the frame is adapted for mounting at or on the upper set of ledgers and/or the uprights of an upper scaffold section.
  • the frame can thus be adapted for instance for coupling to connecting pins
  • the lift system further comprises guide means for guiding the movement of the lift unit in the scaffold column.
  • the guide means comprise a scaffold part and a lift part.
  • the scaffold part of the guide means comprises guide tracks along one or more uprights.
  • a guide track can be present along each of the uprights .
  • These guide tracks can be integrated with the uprights. They can also be coupled to and uncoupled from the uprights, wherein they can be adapted to couple to a determined existing type of upright, such as for instance the uprights of the LayherTM type.
  • the scaffold part of the guide means comprises guide tracks which are arranged parallel to the uprights and mounted on the ledgers.
  • the lift part of the guide means comprises guide wheels adapted so that they can co-act with the guide tracks on the scaffold.
  • the scaffold part of the guide means comprises guide wheels.
  • the guide wheels are mounted on the ledgers .
  • the lift system comprises two guide tracks which are arranged on opposite sides of the lift unit and which co-act with respective guide wheels on the
  • the guide wheels and the guide tracks are adapted to co-act in a manner such that a deviation in the direction of the guide tracks occurring relative to the direction of the uprights is countered or avoided.
  • the guide tracks that are present have a length which is great enough to always co-act during use with guide wheels of at least two successive ledger levels .
  • the hoists or reverse hoist can be suitable prior art hoists. They can thus be chain hoists or steel wire hoists.
  • the hoists can for instance be electrically, pneumatically or manually driven.
  • the hoisting means can further also comprise for instance a blocking means for safety reasons, this for instance for the purpose of preventing the hoisted lift unit being able to slide downward in the case of a malfunction of the hoisting means.
  • the hoisting means can comprise for this purpose one or more additional guide cables or chains .
  • the lift unit comprises an upper frame which is adapted for coupling to the hoisting means.
  • the lift unit comprises a work- floor, and the coupling between the hoisting means and the lift unit takes place under the work- floor, the hoisting means passing here through an opening in the work-floor.
  • the work-floor comprises a stacking means for scaffolding material, the stacking means
  • the lift unit comprises an upper frame situated above the work- floor, the upper frame being adapted to guide the hoisting means.
  • the lift unit is a lift unit according to the first aspect of the present invention.
  • a lift unit according to the sixth aspect of the present invention can further comprise displacing means adapted for coupling to a rail system, the rail system being adapted so that it can be arranged inside and through at least two horizontally adjacent scaffold sections in order to guide a horizontal displacement of the lift unit through the
  • a displacing system for a displaceable unit for use inside a scaffold comprising at least two mutually adjacent scaffold sections, which system allows displacement of the
  • the displaceable unit through at least two mutually adjoining, laterally adjacent scaffold sections.
  • the displaceable unit is adapted here and of suitable dimensions such as to be able to move through the scaffold in substantially horizontal direction along one, two or more guide tracks, such as for instance rails.
  • These guide tracks are preferably adapted so that they can be mounted on the ledgers at the same ledger level
  • the displaceable unit can be a lift unit according to any of the embodiments of the present invention which comprises displacing means, such as for instance wheel mechanisms, which are adapted for guiding along the guide tracks .
  • the displaceable unit can also be an independent carrier unit (e.g. a carriage, trolley) which can be placed in the scaffold and which comprises displacing means, such as for instance wheel mechanisms, adapted to be guided along the guide tracks.
  • a trolley can be used to carry and displace a lift unit according to any of the embodiments of the present invention.
  • a first set of guide tracks or rails of the displacing system can further comprise point switching means which allow the displaceable unit to be guided to a second set of guide tracks .
  • the second set of guide tracks forms substantially a right angle with the first set.
  • the second set of guide tracks can preferably come out of the scaffold at the front and connect the first set of guide tracks to a ground level.
  • a lift unit with displacing means can then be guided upward for instance from the ground level via the second set of guide tracks to the point switches, and thus to the first set of guide tracks .
  • Figure 1 shows embodiments of the present invention.
  • the scaffold lift is placed in the scaffold such that the second part/the work-floor is fixed relative to a first level of ledgers in the scaffold, while the first part/base platform is held at a position under the work-floor by means of the (main) distance control means without being connected here to the scaffold in this intermediate step.
  • Figures 2-6 illustrate the aspect of embodiments of the present invention wherein the base platform is pulled to the work-floor by means of the main distance control means, following which both the work-floor and the base platform are fixed at a first level of ledgers.
  • FIGS. 8-11 illustrate the continuation of a method
  • the second part/the work-floor is driven upward by means of the main distance control means to a level at which attachment of the fixing means of the work- floor to the ledgers of the subsequent level above can take place .
  • Figure 12 illustrates an embodiment of a coupling structure of (the fixing means) of the work- floor.
  • Figure 13 illustrates an embodiment of a coupling structure of (the fixing means) of the base platform.
  • Figures 14 to 18 illustrate a simpler embodiment of the present invention.
  • Figure 19 illustrates an embodiment according to the sixth aspect of the present invention.
  • Figure 20 shows a side view and a perspective view of a frame according to embodiments of the sixth aspect of the present invention.
  • Figure 21 shows a perspective view of a scaffold part of a guide means of a lift system according to the sixth aspect of the present invention.
  • Figure 22 shows a perspective view of a scaffold with lift unit and rail system with which a lift unit according to embodiments of the present invention can be displaced through the scaffold.
  • Figure 23A is a schematic top view of a point switch for the rail system of Figure 22.
  • Figure 23B is a schematic perspective view of a displacing wheel of the lift unit placed on a rail at the position of the point switch system.
  • Figure 24 is a perspective view of an embodiment of a lift system according to the sixth aspect of the present
  • Figure 26 is a perspective view of an embodiment according to the first aspect of the present invention.
  • Figure 25 shows different views of a claw as can be used in embodiments depicted in Figures 24 and 26.
  • Reference numerals are chosen such that they are the same for similar of the same elements or features in different figures or drawings. Description of illustrative examples
  • Figure 1 shows a first example of a device according to the first aspect of the present invention.
  • Shown in figure 1 is a scaffolding construction 5 which comprises a number of scaffold sections forming a scaffold column.
  • the scaffold is constructed from uprights 7 (714,
  • a scaffold section comprises at the bottom four ledgers which connect four uprights to each other, and also comprises at the top four ledgers connecting the same uprights to each other such that a typically beamlike structure of the scaffold sections is obtained.
  • the scaffold shown in figure 1 comprises uprights of square cross-section which are further provided with openings in which the ledgers can engage. This is not however necessarily required for the use of a lift unit according to embodiments of the present invention.
  • the lift units are not however necessarily required for the use of a lift unit according to embodiments of the present invention.
  • the successive levels of ledgers in the scaffold are designated with L 0 , Li , L 2 , ....
  • the scaffold lift comprises a second part comprising a work- floor 2 with a working area 21 located above an active part 22 of the work-floor.
  • the active part comprises mounting means for the work- floor which comprise for instance four extendable and retractable arms 821 in addition to coupling structures 822 adapted for coupling to the ledgers of a scaffold.
  • the mounting means 82 of the work- floor further also comprise distance correction means 823 which are adapted to place the work- floor in a horizontal position at all times, even it there were to be, typically very small, height differences between the ledgers in the four corners of a scaffold section at substantially the same level.
  • the extendable/retractable arms of work- floor 821 can further also be reoriented and/or
  • the inward directed outer end of arms 823 can thus be mounted rotatably round a rotation point.
  • the work- floor can also be provided at the top with a railing which can serve as support for the user, and can also comprise predefined storage sections or storage means in which scaffolding material can be arranged or stacked in a predefined manner.
  • the main distance control means 4 which is adapted to vary the distance between the work- floor and the first part comprising a base platform, is embodied here as a scissor lift.
  • Other main distance control means which can fulfil the same function can also be used, as will be appreciated by the skilled person. Examples hereof can for instance be (for instance upright) cylinders, (for instance upright) endless chain or belt systems, or (for instance upright) threaded spindles.
  • a scissor lift can be arranged in a manner which does not further obstruct the arrangement of further
  • a drive means is thus present in (for instance on the support surface or upper surface) the base platform, such as for instance a motor or hydraulic drive system.
  • the base platform can also comprise the necessary electronics.
  • Such a scissor lift can further be driven hydraulically in simple manner.
  • the scissor lift (or main distance control means 4) provides for the connection to the base platform 3/first part.
  • the base platform can comprise a support surface 31 (not shown) as well as an active part of base platform 32.
  • the active part 32 of the base platform comprises mounting means 83.
  • These mounting means 83 comprise for instance four similar
  • extendable/retractable arms 831 which can preferably also rotate around a rotation point on their inward directed outer end. They further also comprise coupling structures for base platform 832 adapted for mounting on the ledgers of a scaffold, and preferably also distance correction means 833. In preferred embodiments these extendable/retractable arms 831 can preferably also be reoriented or displaced, similarly to the arms 821 of the work- floor.
  • Figure 2 shows a detail view of the mounting means 82 for the work- floor when these are fixed at a first level of ledgers of the scaffold.
  • the extendable/retractable arm 821 is connected to the distance correction means 823, which is further connected to coupling structure 822 which is coupled to two adjacent ledgers 61 and 64 close to upright 714.
  • the inner surface of the coupling structure here makes contact with or preferably connects to the surface of the upright in order to thus block the movement of the work- floor in a horizontal plane relative to the upright.
  • each of the four mounting means 82 are arranged in similar manner relative to the respective uprights, and that the position of the work- floor is consequently fixed in a horizontal plane by the four uprights.
  • Coupling structure 822 is preferably provided on the underside with a recess 824 adapted to engage on the associated ledgers. For ledgers with a circular cross-section as shown in figure 2 a
  • circular recess can be appropriate, while for ledgers with for instance a rectangular cross-section a corresponding rectangular recess can be appropriate.
  • the skilled person can develop other coupling structures adapted to the
  • this coupling structure 822 can also engage on two adjacent ledgers 61, 64 at a distance from the respective surface of the upright corresponding to a
  • Figure 3 shows the result of the action wherein the main distance control means 4 pulls the underlying base
  • underside of the coupling structure of the fixing means of the base platform is situated here above the upper level of the corresponding ledgers .
  • coupling structure 832 is then coupled to ledgers 61 and 64, for instance by arranging the corresponding recesses in the coupling structure over these ledgers. This can take place by varying the main distance control means 4 and/or the distance correction means 833.
  • the outer surface 8220 of coupling structure 822 will adjoin the inner surface 8320 of coupling structure 832 as shown in figure 6. Such a configuration improves the stability of the lift unit in the scaffold.
  • the contact surface between surfaces 8220 and 8320 can be further provided with a suitable material adapted to
  • Figure 7 shows the lift unit in the scaffold in the position corresponding to figures 5 and 6.
  • Figure 8 illustrates the further progress of the ascent process.
  • the base platform remains fixed at the first level of ledgers while work- floor 2 is pushed upward relative to base platform 3 by means of distance control means 4.
  • the distance correction means 823 and coupling structure 822 remain here at the same horizontal position, in this case adjacent to upright 714.
  • the mounting means can be displaced by retracting the retractable/extendable arm 821 (see figure 9) , hereby moving the distance correction means 823 and coupling structure 822 of the base platform away from the upright, preferably toward the interior of the scaffold section.
  • the position of mounting means 82 can however be changed in alternative manner such that obstacles are avoided as the work-floor is moved upward.
  • FIG. 10 shows a detail of the base platform "left behind" at the first level of ledgers. Note that coupling structure 832 does not adjoin the upright (this in similar and synchronized manner for each of the four uprights of the scaffold) . Further
  • coupling structure 832 is coupled to a for instance cylindrical rod driven by a piston comprised in the distance correction means 833.
  • this cylindrical rod is rotatable in the piston round its longitudinal axis.
  • the coupling of the two recesses 834 arranged on the underside of the L-structure forming the coupling structure 832 is arranged at symmetrically predetermined locations relative to the cylindrical rod, and that these recesses can provide for an "automatic" distance setting relative to the upright.
  • correction means 832 thus allows a simple adjustment for different sizes of scaffold section.
  • Figure 11 shows the final result of the action illustrated in figures 9 and 10, wherein the work-floor/the second part is pushed upward relative to the fixed base platform/first part 3 by the main distance control means 4 without
  • the extendable arms 821 of the base platform can be extended once again such that coupling structures 822 can once again couple to ledgers 6 close to the corners of the scaffold sections defined by uprights 7. This process is not shown explicitly, but results once again in the phase shown in figure 1, be it at the subsequent
  • FIGS. 12A and 12B show a detail view of a part of mounting means 82 of the work- floor/the second part (the arm is not shown) .
  • a distance correction means 823 which is adapted to be connected to arm 821, is further connected to a rod- like element which can slide in and out in driven manner.
  • the rod- like element comprises on its other outer end a coupling structure 822 comprising recesses 824 which are adapted to engage over (coupling structures of) the ledgers.
  • the coupling structure in order to facilitate the movement along the upright.
  • the coupling structure can be a substantially L-shaped element wherein the two recesses 824 are arranged on the underside of the two respective legs of the L.
  • the legs of the L are preferably of equal length.
  • Figure 13 shows a detail view of a part of mounting means 83 of the base platform/the first part (the arm is not shown) .
  • a distance correction means 833 which is adapted to be connected to arm 831, is further connected to a rod-like element which can slide in and out in driven manner.
  • the rod-like element comprises on its other outer end a coupling structure 832 comprising recesses 834 which are adapted to engage over (coupling structures of) the ledgers.
  • lubricant 835 is applied to the internal wall of the
  • the coupling structure in order to facilitate the movement of the work-floor along the coupling structure.
  • the coupling structure can be a substantially L-shaped element wherein the two recesses 834 are arranged on the underside of the two respective legs of the L.
  • the legs of the L are
  • the method can then be repeated in order to ascend further with the lift unit to a higher level by once again pulling base platform 3 upward by means of the main distance control means 4 to the next (in this case third) ledger level, a phase corresponding to the phase shown in figure 1.
  • the retractable/extendable arms 831 and 821 comprised in the respective mounting means 83 and 82 can consist of a number of (for instance two, three, four) different parts slidable into and out of each other. This sliding in and out of the arms can for instance be driven hydraulically . In preferred embodiments the retracting/extending of the arms of the work-floor or base platform takes place simultaneously
  • Figures 14-18 illustrate a second example of a lift unit and its operation.
  • This lift unit is of simpler construction. The operation thereof is further illustrated in scaffolding material of the LayherTM type.
  • the second part (II) of this lift unit does not comprise a work- floor.
  • the work- floor is comprised in the first part (I) of the lift unit.
  • the first part comprises a first set of fixing means 83 which are adapted for fixing/coupling to the ledgers of the same scaffold section, for instance the ledgers of level L 0 .
  • These fixing means 83 here comprise a number of claws similar to the claws of the first example, although these claws are here connected to the first part for rotation about a rotation point such that the claws can pivot away around this
  • the second part here comprises a second set of fixing means 82 which are adapted for coupling to or for mounting at or on the ledgers at a higher level, for instance level Li .
  • the second part here consisting substantially of the second set of fixing means 82, is connected to first part 1 by means of four cylinders arranged between the first part and the second part, this preferably close to the corners of the scaffold section in order to leave the work-floor as clear as possible.
  • the cylinders are preferably placed vertically here along the uprights 7 defining the scaffold sections, and by being retracted or extended can vary the distance between the first and second parts, whereby an ascending movement can be obtained similar to the ascending movement elucidated for the first example.
  • These cylinders can for instance be driven hydraulically or pneumatically.
  • These cylinders are an advantageous alternative to the scissor connection as described for the first embodiment.
  • Work- floor 2 can further also be provided with railings.
  • the placing of these railings is preferably such that, during an upward ascending movement of the lift unit in the scaffold, these railings are not obstructed by elements of the lift unit and/or scaffold.
  • Figure 14 shows the situation of the lift unit wherein the second set of fixing means is coupled to ledgers at level Li of a scaffold of the LayherTM type. At the bottom the fixing means of the first part are still coupled to the ledgers at the lower level L 0 .
  • Figures 15-18 illustrate an ascending movement of such a lift unit in a scaffold, this being similar to the process illustrated for the lift unit of the first example.
  • the fixing means 83 of the first part are situated close to fixing means 82 of the second part.
  • the fixing means of second part 82 are still coupled to the ledgers at level Li of the scaffold.
  • the first set of fixing means 83 can now be rotated back round the rotation point such that they are brought into a position from which they can be coupled to the ledgers at the first level Li by lowering the first part again to some extent.
  • the fixing means of the first and the second part do not
  • scaffold can be erected further upward by arranging uprights 7 in the corners and connecting them to a new level L 2 of ledgers 6.
  • the distance control means 4 can once again move the second set of fixing means upward in the direction of the ledgers at the second level L 2 , and fixing means 82 of the second part can again be coupled to ledgers at the subsequent level L 2 , whereby we arrive once again in the situation illustrated in figure 14, albeit in a higher section of the scaffold.
  • Fixing means 82 of the second set are adapted to rotate away around the
  • This climbing lift generally corresponds to the climbing lift described with reference to figures 14 to 18.
  • the first set of fixing means is similar to the set described with reference to figures 14 to 18.
  • the second set of fixing means is formed here however by a set of four claws 82
  • the second set of fixing means preferably has to be displaced here by the user in order to make the ascending movement possible.
  • the other outer ends of the respective chains or cables can be connected to a drivable wind-up mechanism 42 comprised in the climbing lift, for instance in a space adapted for this purpose under the work- floor.
  • the chains or cables can be trained from this space to the vertical positions on the outer side of the climbing lift using associated guide wheels 41.
  • Such guide wheels 41 are preferably situated on the outer side of the four corners of the climbing lift.
  • Claw 82 comprises a connecting part 82V
  • connection is made in such manner to the ledgers close to the respective uprights of the scaffold.
  • connecting part 82R which is adapted for connection to a chain link.
  • This connecting part can for instance comprise a ring mounted on connecting part 82V, or can for instance be an opening in the connecting part.
  • the climbing lift can have a substantially rectangular form in top view. Close to or at each of the corners the climbing lift can further be provided with a support means, such as for instance a vertical support 43. Such a support means is preferably adapted to still hold the claws at height
  • Such supports are preferably placed vertically close to the corners of the climbing lifts and can comprise on their upper outer end a guide wheel 31 over which the chain can be trained.
  • a counterweight or other force compensation means such as for instance a suitable spring (not shown) , can further be used in order to ensure that the claw, which is attached to the chain and the chain of which is suspended over the respective guide wheel, remains at a stable height.
  • the lifts according to embodiments of the first aspect of the present invention can preferably be used for the
  • the lift unit can thus be carried to a highest level of an existing scaffold (possibly the ground level) , wherein the lift unit is loaded with scaffolding material to enable further erection of the scaffold, after which a subsequent scaffold section and a subsequent level of the scaffold can be erected by the operative present on a work- floor.
  • This operative can be a person, but can also be a robot arm positioned and programmed in appropriate manner to bring about the erection of the scaffold in automatic manner.
  • the lift unit can ascend to the next level of ledgers and a further section can be constructed, and so on.
  • the work-floor can be fixed at the highest ledger level but one of the scaffold so that an operative can dismantle the ledgers and uprights of the surrounding uppermost scaffold section and store them on a work-floor.
  • the lift unit can then descend once again to the scaffold section below, which has now become the uppermost section, so as to also dismantle this scaffold section and store the scaffolding material on the work- floor of the lift.
  • a whole scaffold column can in this way be easily dismantled.
  • the usable surface/upper surface of the available work-floor may connect closely to the uprights and ledgers of the scaffold.
  • a larger such surface can thus provide for a greater load capacity.
  • this surface can be separated all around from the scaffolding structure by a distance of about 10 cm.
  • inventions can accordingly further comprise guide means (not shown) arranged at or on the coupling structures of (the fixing means of) the work- floor and/or at or on the coupling structures of (the fixing means of) the base platform in order to guide the movement of these coupling structures along the uprights of the scaffold.
  • guide means can for instance comprise guide wheels which in use rest at least temporarily against the uprights of the scaffold during the downward or upward movement of work- floor and/or base platform. The resistance to swing of the lift unit in the scaffold can in this way be increased.
  • the distance control means as described in determined embodiments of the present invention can comprise not only a main distance control means (for instance distance control means of the scissor lift type) , but optionally also distance correction means. It is through co-action of both means that the appropriate distance variation between work- floor and base platform can be achieved. A relatively small contribution can thus be made to the distance variation by making use of the distance correction means, while the greater part of the distance variation can typically be caused by the main distance control means. The skilled person will appreciate that generating small differences in distance using for instance a scissor lift without causing jolting can be carried out less easily than if this were done using other distance correction means.
  • the securing or release of the fixing means to or from the ledgers can also involve lifting in or out of the coupling structure over/away from the ledgers, and can preferably be realized with the distance correction means. This lifting in or out movement or this process can be seen as part of the fixing/uncoupling process.
  • the distance correction means are further adapted to obtain a substantially- horizontal placing of the work- floor/the base platform in the scaffold by fine adjustment of the height of the four corners of the work- floor/the base platform.
  • Figures 19-21 illustrate an example of a lift system
  • Figure 19 illustrates three scaffold sections of a scaffold column lying one above another.
  • Used here as scaffolding material is material of the LayherTM type, although as also indicated above other types of scaffolding material can be used, as will be appreciated by the skilled person.
  • the lift system for use in the scaffold column of the scaffold comprises a lift unit, a frame 65 which is adapted for mounting on a part of the scaffold and which is adapted to bear a hoisting means internally on the scaffold column, and a hoisting means (not shown) which is adapted at a first outer end thereof to be coupled to the frame and at a second outer end thereof to be coupled to the lift unit.
  • the ascent or descent of the lift unit in the scaffold can be controlled by means of the hoisting means.
  • the lift unit comprises in this case an upper frame 291 which is also adapted for coupling to the second outer end of the hoisting means . Owing to the presence of an upper frame to which the hoisting means can be coupled the user present on a work- floor 2 of the lift unit cannot be obstructed by the
  • the hoisting means is for instance a hoist or a reverse hoist.
  • a hoist typically comprises a drive mechanism connected to a chain or cable.
  • the mechanism can raise or lower the chain or cable in controlled manner. When pulled upward, the cable that is being raised can for instance be wound up or the chain being raised can be gathered into a chain bag.
  • the mechanism itself can run over a hanging chain or cable, wherein the cable or chain remains suspended or wherein it is co-displaced during the upward movement of the mechanism over the cable or the chain.
  • the advantage of using a reverse hoist is that the user can intervene more quickly in the case of possible problems with the hoisting means, since the drive mechanism can remain in the vicinity of the user.
  • the upper frame 291 instead of itself being adapted for
  • the coupling to the hoisting means can rather comprise a guide means for the cable of the hoisting means.
  • the guide means can for instance comprise an opening arranged in a
  • the hoisting means can be mounted on the lift unit by running through an opening in work- floor 2 of the lift unit and being attached under the work-floor to this lift unit.
  • the drive mechanism can for instance be arranged under this work-floor.
  • the lift system further comprises guide means 292, 600 for guiding the movement of the lift unit in the scaffold column.
  • These guide means can be arranged partially on the lift unit (lift part) and partially on the scaffold
  • the scaffold part of the guide means comprises guide wheels 600 arranged on the ledgers 6 of the scaffold. Different guide wheels 600 are arranged vertically one above another here on the ledgers lying one above another. Such guide means 600 can be arranged on the ledgers situated on opposite sides of the scaffold sections, for instance on the width ledgers, or on the lengthwise ledgers. Such scaffold parts of the guide means can also be arranged on both the lengthwise ledgers and the width ledgers .
  • the lift unit further comprises a guide track 292 which is mounted on the lift unit and which is adapted to co-act with guide wheels 600 on the ledgers.
  • the lift unit can be guided through the scaffold column by providing such a guide track 292 on either side of the lift unit.
  • the length of these guide tracks, which are secured laterally and along the direction of the uprights (in substantially vertical direction) to the lift unit, is preferably longer than twice the height of a scaffold section. In such manner the guide track 292 co-acts at any given moment with two guide wheels 600 lying one above the other .
  • these guide tracks can also be made longer, such as for instance longer than three times, four times the height of a scaffold section.
  • additional ledgers can be placed between the standard ledger levels. This can for instance be done at half the height of a scaffold section, but also at other intermediate height.
  • Such additional ledgers can be provided with a scaffold part of the guide means. In such cases the guide tracks on the scaffold unit can be made shorter, for instance shorter than the height of a scaffold section. The presence of such additional ledgers can also bring about an increased ability.
  • the guide tracks and the guide wheels are preferably further adapted to co- act in a manner such that a deviation from the direction parallel to the uprights, being a deviation from the
  • guide track 292 is countered or avoided.
  • the guide wheels and the guide tracks can for this purpose have a predetermined, mutually adapted and/or corresponding design.
  • guide tracks 292 are arranged on each of the two width directions of the lift unit (close to the left and right-hand side surfaces of the scaffold column) . It is also possible for these guide tracks to be arranged on the lengthwise direction of the lift unit (close to the front and rear surfaces of the scaffold column) or along both the lengthwise direction and the width direction of the lift unit/scaffold. It is also possible for a plurality of guide tracks and associated sets of guide wheels to be arranged along the same plane of the scaffold column .
  • Figure 20 further shows a side view and perspective view of frame 65.
  • the frame comprises for instance elongate beam structures 650 adapted to be able to support the heavy load of the lift unit, one or more persons and a substantial quantity of scaffolding material. Beam 650 will therefore typically have a much greater load-bearing capacity than the typical ledgers 6.
  • Two such support beams 650 are for instance connected in H- shaped configuration by means of a transverse beam 652. This can for instance be arranged on top of support beams 650 by dropping into recesses 653 arranged in coupling pieces 651 connected to each of the support beams 650. It should be noted that in preferred embodiments the frame can be
  • the support beams comprise a first coupling structure 651 at a first outer end and a different second coupling structure 652 at a second outer end.
  • These coupling structures can preferably be not the same but complementary such that, when frames are arranged at the same level of two adjacent scaffold sections, these frames can couple/be attached simultaneously to the same uprights/ledgers (for instance to the connecting pin of the respective uprights) .
  • Coupling structures 651 and 652 can for instance comprise a bush which can fit over the connecting pin of an upright. At the one outer end the bush structure can be situated at the top, while at the other outer end it can be at the bottom so that they come to lie connecting above one another when they are coupled to an upright.
  • FIG. 21 further shows a scaffold part 600 of a guide means in the form of guide wheels mountable on the ledger.
  • the shown guide wheels comprise mounting means 601 adapted for mounting on the ledgers of the scaffold, in addition to guide wheels 603 which are supported by and connected to mounting means 601 by means of a profile 602 and a shaft
  • a similar scaffold part of the guide means can comprise only one guide wheel 603 which is connected by means of profile 602 and a shaft 604 to mounting means 601 adapted for mounting on the ledgers.
  • a scaffold part of the guide means can be formed by a single guide wheel or a single disc which comprises a hole centrally through which the ledger is arranged.
  • the guide wheel or the disc can then rotate around an axis defined by the respective ledger.
  • the ledger can further also comprise a means to secure/hold the position of the guide wheel/the disc relative to the ledger in the lengthwise direction of the ledger.
  • Such a ledger can then be referred to as a "wheel ledger" .
  • Figure 24 shows an alternative embodiment of a lift system according to the sixth aspect of the present invention.
  • the lift cage comprises four chains or cables 4 connected to a set of fixing means, here for instance a set of four claws 82 (shown in more detail in figure 25) .
  • the other outer ends of the respective chains or cables can be connected to a drivable wind-up mechanism comprised in the lift cage, for instance in a space 23 adapted for this purpose under work-floor 2.
  • the chains or cables can be trained from this space to the vertical positions on the outer side of the climbing lift using associated guide wheels 41.
  • Such guide wheels 41 are
  • Each of the chains or cables is
  • guard elements can for instance be hollow tube parts which can also guide the respective chains or cables vertically.
  • the guard elements can avoid an undesirable interaction between user and chain during the operation of the lift system and thus enhances safety of the system.
  • the lift cage can also comprise at the bottom a set of chamfered side surfaces 23 or curved guide tubes which can provide for guiding of the lift cage through the successive ledger levels of a scaffold column. It should be noted that this embodiment can be implemented with or without further guiding as described above, i.e. without further vertical guide tracks on
  • the work- floor can also comprise rail parts compatible with a rail system in the scaffold. These rail parts can for instance guide a platform
  • the lift system shown in figure 19 is a lift system corresponding to a lift system as has been elucidated in the second example corresponding to the embodiment of the first aspect of the present invention.
  • “climbing lift” of the second (or first) example can thus be used to erect a scaffold column.
  • frame 65 can for instance be mounted.
  • This frame can preferably be disassembled but can also be formed integrally and mounted on top of the scaffold column.
  • the hoisting means can be arranged between the frame and the lift unit, after which the hoist system can be used in order to cause the lift unit to ascend or descend in the shaft formed by the scaffold column.
  • the lift unit according to the first aspect of the present invention can optionally be converted to limited extent for this purpose. This
  • the conversion can comprise of removing the spacing means and/or the first set of fixing means and/or the second set of fixing means when these take a removable form.
  • the spacing means and/or the first set of fixing means and/or the second set of fixing means can more preferably be placed in
  • guide wheels 600 or alternative elements on the ledgers or uprights preferably takes place in such a scenario at the moment the "climbing lift" is located in the vicinity during erection of the scaffold.
  • Guide tracks 292 on the lift unit can be initially present on the lift unit but can also be mounted later if the "climbing lift" were to be converted to the lift system with frame and hoist
  • a lift unit according to the first aspect of the present invention forms the lift unit of the lift system according to the sixth aspect of the present invention, or is converted to a lift system according to the sixth aspect of the present invention
  • this lift system can be used for instance for rapid loading of new scaffolding material at a lower- lying level, for instance ground level. Fully loaded with scaffolding material, this lift can then be quickly raised, for instance hoisted, back to the upper part of the scaffold column, after which the lift system can once again be used as a lift unit according to the second example or according to the first aspect of the present invention.
  • the guide means on the scaffold can consist of guide tracks, and the lift part of the guide means can comprise guide wheels.
  • the guide tracks must however run through the whole length of the scaffold column.
  • Such guide tracks could be arranged along and parallel to all uprights of the scaffold column.
  • These guide tracks can be integrated with the uprights, but can also exist separately and be adapted for coupling to different existing types of upright, such as for instance uprights of the LayherTM type .
  • Such guide tracks can on the other hand also be arranged through the scaffold column parallel to the uprights and mounted on the ledgers.
  • guide wheels as scaffold part or as lift part of the guide means
  • other structures/elements can further be used which can provide for a substantially similar guiding.
  • guide blocks can for instance thus be arranged along the ledgers and/or uprights, or on the lift unit, which co-act respectively with the guide tracks on the lift unit or uprights/ledgers.
  • the guide means can comprise only a lift part.
  • This lift part can for instance consist of guide tracks as described above.
  • Such guide tracks can per se already provide a determined measure of guiding since in their vertical orientation they are restrained by the ledgers (or optional additional ledgers) during a possible lateral movement .
  • the lifts according to embodiments of the present invention can be provided with displacing means (see figure 22) .
  • the displacing means can comprise a number of (for instance four) wheel mechanisms 99 which can optionally be driven and which are adapted to move forward (for instance in order to travel) on a rail system 9 which can be arranged through the scaffolding construction at a determined ledger level (for instance ground level L 0 ) .
  • this lift unit can be readily displaced via the determined level (for instance ground level L 0 ) through the whole scaffolding construction, in particular to adjacent scaffold columns.
  • This rail system preferably comprises at least two rails 90 which are adapted for mounting on ledgers 6 of the scaffold and which are on the other hand adapted for coupling to the displacing means of the lift unit (for instance to wheels 93 of wheel mechanisms 99 of the lift unit) .
  • Rail system 9 can further be provided with point switches 91 which can for instance be manually adjusted or which can be adjusted by means of driven rotation of the wheels 93/wheel mechanisms 99 of the lift unit, which are coupled thereto, along a substantially vertical shaft 990, this rotation taking place at a location corresponding to such a point switch 91 (see figures 23A and 23B) .
  • Each of the wheel mechanisms can comprise a vertical shaft 990 whi is connected by means of a frame 992 to the rotation shaft 991 of a wheel 93.
  • These point switches 91 can comprise for instance a disc or disc part 92 which is freely rotatable about an axis 94 and which is provided with a rail part 93 compatible with the system of the rail type and is thus adapted to receive wheels 93 of the lift unit.
  • the disc can preferably be mounted rotatably around the axis of symmetry 94 of the disc.
  • the rail part compatible with the system of the rail type can for instance be a similar piece of rail.
  • the above described rail system can further also be combined with an independent carrier unit (e.g. a carriage) which can be placed in the scaffold and which comprises the above
  • two lift units or lift systems according to embodiments of the first aspect of the present invention can be arranged in two adjacent scaffold columns. In such situations the fixing means and/or guide means of both lift units or lift systems, particularly along the interface of the two scaffold columns, are
  • coupling structures 822 and 832 and fixing means 82 and 83 are examples of coupling structures 822 and 832 and fixing means 82 and 83.
  • blocking means (not shown) can further be comprised in the coupling

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Movable Scaffolding (AREA)

Abstract

L'invention concerne un système élévateur à utiliser dans une colonne d'échafaudage d'un échafaudage. Selon l'invention, la colonne d'échafaudage comprend au moins une section d'échafaudage et chaque section de l'échafaudage est sensiblement définie par des montants et des traverses. Le système élévateur comprend : - une unité de levage ; - des moyens de levage qui sont prévus à une première extrémité extérieure de ceux-ci pour être accouplés à l'échafaudage en un endroit au-dessus de l'unité de levage et qui sont prévus à une deuxième extrémité extérieure de ceux-ci pour être accouplés à l'unité de levage et qui sont en outre prévus pour commander la montée ou la descente de l'unité de levage dans l'échafaudage.
PCT/BE2011/000048 2010-07-16 2011-07-15 Système élévateur à utiliser dans un échafaudage WO2012006694A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
BE2010/0442 2010-07-16
BE2010/0442A BE1019424A5 (nl) 2010-07-16 2010-07-16 Liftsysteem voor een steiger.
PCT/BE2011/000012 WO2012006689A1 (fr) 2010-07-16 2011-03-17 Echafaudage avec éléments d'échafaudage et procédés pour l'ériger
BEPCT/BE2011/000012 2011-03-17
BE2011/0279 2011-05-06
BE201100279 2011-05-06

Publications (1)

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WO2012006694A1 true WO2012006694A1 (fr) 2012-01-19

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WO2018206566A1 (fr) * 2017-05-08 2018-11-15 Kewazo Gmbh Système de transport d'un échafaudage, procédé de commande d'un système de transport d'un échafaudage et utilisation d'un système de transport d'un échafaudage
CN110587645A (zh) * 2019-09-10 2019-12-20 贵州大学 一种三自由度柔性机械装置
CN111561143A (zh) * 2020-06-01 2020-08-21 孔庆珍 一种基于大数据的建筑工程用脚手架安装装置
US10821072B2 (en) 2012-04-06 2020-11-03 Antares Pharma, Inc. Needle assisted jet injection administration of testosterone compositions
CN113561124A (zh) * 2021-08-01 2021-10-29 龚潇 一种建筑施工架的组装机构

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US4809814A (en) * 1988-04-01 1989-03-07 St Germain Jean Scaffolding
US5259479A (en) * 1991-10-15 1993-11-09 Gestion Des Brevets Fraco Ltee Self-raising cantilever-type work platform assembly
US5579865A (en) * 1994-02-23 1996-12-03 Butler; J. Frank Scaffold
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US10821072B2 (en) 2012-04-06 2020-11-03 Antares Pharma, Inc. Needle assisted jet injection administration of testosterone compositions
WO2018206566A1 (fr) * 2017-05-08 2018-11-15 Kewazo Gmbh Système de transport d'un échafaudage, procédé de commande d'un système de transport d'un échafaudage et utilisation d'un système de transport d'un échafaudage
US11821223B2 (en) 2017-05-08 2023-11-21 Kewazo Gmbh Scaffold transport system, method for controlling a scaffold transport system and use of a scaffold transport system
CN110587645A (zh) * 2019-09-10 2019-12-20 贵州大学 一种三自由度柔性机械装置
CN111561143A (zh) * 2020-06-01 2020-08-21 孔庆珍 一种基于大数据的建筑工程用脚手架安装装置
CN111561143B (zh) * 2020-06-01 2022-03-01 广西鲁板建筑设备制造有限公司 一种基于大数据的建筑工程用脚手架安装装置
CN113561124A (zh) * 2021-08-01 2021-10-29 龚潇 一种建筑施工架的组装机构

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