WO2012064204A2 - Échafaudage et procédé de construction de celui-ci - Google Patents

Échafaudage et procédé de construction de celui-ci Download PDF

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Publication number
WO2012064204A2
WO2012064204A2 PCT/NZ2011/000237 NZ2011000237W WO2012064204A2 WO 2012064204 A2 WO2012064204 A2 WO 2012064204A2 NZ 2011000237 W NZ2011000237 W NZ 2011000237W WO 2012064204 A2 WO2012064204 A2 WO 2012064204A2
Authority
WO
WIPO (PCT)
Prior art keywords
scaffold
standards
platform
bracing system
rungs
Prior art date
Application number
PCT/NZ2011/000237
Other languages
English (en)
Other versions
WO2012064204A3 (fr
Inventor
Hugh Gordon Mccarroll
Original Assignee
Hugh Gordon Mccarroll
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 Hugh Gordon Mccarroll filed Critical Hugh Gordon Mccarroll
Publication of WO2012064204A2 publication Critical patent/WO2012064204A2/fr
Publication of WO2012064204A3 publication Critical patent/WO2012064204A3/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • 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
    • 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
    • E04G1/28—Scaffolds primarily resting on the ground designed to provide support only at a low height
    • E04G1/30—Ladder scaffolds
    • 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
    • E04G5/16—Struts or stiffening rods, e.g. diagonal rods
    • 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
    • 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
    • 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
    • E04G1/28—Scaffolds primarily resting on the ground designed to provide support only at a low height
    • E04G1/30—Ladder scaffolds
    • E04G2001/302—Ladder scaffolds with ladders supporting the platform
    • E04G2001/305—The ladders being vertical and perpendicular to the platform

Definitions

  • the present invention relates to a scaffold and a method for construction of same.
  • the invention has particular application for a modular scaffold for domestic use.
  • Scaffolding is widely used as a means for supporting people (and materials) engaged in construction, repair and maintenance of buildings and other large structures.
  • a scaffold typically consists of a number of vertical standards, horizontal rungs and putlogs, planks, couplings and other fittings to link and secure the components relative to each other.
  • the planks support persons or materials to be supported by the scaffold.
  • a conventional scaffold tends to be a heavy and industrial type structure.
  • steel tubing is often used, and the planks are usually heavy wooden beams.
  • cross bracing tubing run diagonally between the vertical standards, and are clamped at their ends to the standards.
  • ladders have a poor safety record in domestic use. This is particularly the case when ladders are being used as free-standing structures. Because of their lack of support, they can be unstable, particularly when the person using the ladder is elevated well above ground level. In some situations, the ladder may be leant against the building (or structure) being worked on for support. However, the ladder ideally should be secured at the top and bottom to prevent it (and the user) from slipping. Preferably, a second person at the bottom of the ladder steadies it to prevent this happening, turning what may be a one person task into a two person task. A ladder becomes even more difficult to use when used over uneven ground. It is necessary to ensure the ladder has a stable footing and is secured to the building (or similar structure) at the top. If not, the user may be in danger should the ladder overbalance, slip or otherwise unduly move because of the user's movement.
  • a further disadvantage is that while performing the necessary task, the user must have two feet on the ladder, as well as possibly one hand to ensure their stability. This means that the task in hand may need to be performed with one hand.
  • the components of a typical scaffold are heavy and substantial. The overwhelming majority of domestic users could not justify the expense of purchasing such a scaffold. Even the hirage of a scaffold is problematic. The user is likely to require a truck or trailer or the like to transport the scaffold components to where it is to be erected. While tradespersons working on domestic property may have access to such a vehicle, house owners who prefer to do their own maintenance may not.
  • the size of a conventional scaffold means that it is usually at least a two person job to erect (and break down) the scaffold.
  • the number of fastening mechanisms that need to be used to fix and secure the various components of the scaffold means that the erection of a scaffold can be a time consuming process.
  • a scaffold formed from a plurality of components including a plurality of standards, wherein the standards are paired, each pair of standards linked via a plurality of rungs; and at least one horizontal support, wherein the horizontal support is configured to extend between opposing pairs of standards; and a bracing system, characterised in that the bracing system is configured to tension the scaffold, such that the scaffold components are locked together to form a rigid space frame.
  • a scaffold formed from a plurality of components including a plurality of standards, wherein the standards are paired, each pair of standards linked via a plurality of rungs; and at least one platform, wherein the platform is configured to be located on corresponding rungs of opposing pairs of standards; and a bracing system, characterised in that the bracing system is configured to tension the scaffold, such that the scaffold components are locked together to form a rigid space frame.
  • a scaffold formed from a plurality of components including a plurality of standards, wherein the standards are paired, each pair of standards linked via a plurality of rungs; and at least one horizontal support, wherein the horizontal support is configured to extend between opposing pairs of standards; and at least one platform, wherein the platform is configured to be located on corresponding rungs of the opposing pairs of standards; and a bracing system, characterised in that the bracing system is configured to tension the scaffold, such that the scaffold components are locked together to form a rigid space frame.
  • a method of erecting a scaffold wherein the scaffold includes a plurality of standards, wherein the standards are paired, each pair of standards linked via a plurality of rungs; a plurality of horizontal supports configured to extend between opposing pairs of standards; and a bracing system, the method including the steps of: a) assembling at least two pairs of standards, wherein each pair includes a plurality of rungs linking the standards; and b) placing a first horizontal support between the opposing pairs of standards; and c) mounting a bracing system to the opposing pairs of standards, the method characterised by the additional step of: d) tensioning the bracing system such that the scaffold components are locked together to form a rigid space frame.
  • a method of erecting a scaffold substantially as described above in steps a) to d), wherein the scaffold also includes at least one platform the method including the additional step of: e) placing a platform on corresponding rungs of opposing pairs of standard.
  • a method of erecting a scaffold substantially as described above in steps a) to d) or in steps a) to e), wherein the scaffold also includes at least one platform the method including the additional steps of: f) placing a further two pairs of standards atop of the first two pairs of standards, wherein each further pair includes a plurality of rungs linking the standards; and g) placing at least a further horizontal support or a platform between each further pair of standards; and h) mounting a second bracing system to the opposing further pairs of standards; and i) tensioning the second bracing system such that the further scaffold components are locked together.
  • the present invention provides a portable modular scaffold for a domestic environment that is easily erected and dismantled as required. However, this should not be viewed as limiting. A person skilled in the art would appreciate the present invention may be readily implemented in commercial, construction or industrial scaffolding as required.
  • a standard should be understood to mean the vertical tubes of a scaffold that transfer the weight of the scaffold structure to the ground. In some countries, these may be referred to as “uprights”, although the term standard shall be used to refer to this component of the scaffold throughout the remainder of this specification.
  • the standards form the vertical elements of each of the modules that form the present invention.
  • the standard may be fabricated from any suitable material such as aluminium tubing or the like. Alternatively, other materials such as steel, carbon fibre, fibreglass or composite materials might be used.
  • the standard may be formed from tubing of circular cross-section although other sections, such as rectangular hollow section, angle, "C” or ⁇ " cross-sections are possible.
  • the standard has a bottom end and a top end.
  • each standard is configured as a socket (or a similar structure) to receive the bottom end of another standard.
  • a socket or a similar structure
  • the structures may be reversed (the bottom end of each standard could be configured as the socket).
  • At least one module is proximate to the substrate over which the invention is to be erected, and can be thought of as the base module. Subsequent modules can be thought of as extension modules.
  • the scaffold may be provided with a work platform, which will in most instances be positioned on the highest module of the scaffold.
  • the bottom end of the standards forming the base module may be sealed with a plastic cap or the like.
  • the cap prevents dirt and other detritus from entering the bottom end of the standard.
  • the bottom end of the standard forming the base module may be provided with a foot or sole plate such that the weight distribution of the scaffold is not focused solely on the bottom end of the standard.
  • the bottom end of the standard may be provided with a threaded member or the like such that the foot of the standard can be adjusted to compensate for variations in terrain.
  • the bottom end of the standards forming the base module may be configured to engage with a base unit.
  • the base unit should be understood to mean a frame or platform upon which a scaffold can be erected.
  • the base unit includes a substantially rectangular frame constructed from aluminium channel, tubing or the like.
  • the base unit may include a deck or platform supported by the frame.
  • the deck may be a sheet of metal but preferably is a sheet of plywood for ease of manufacture.
  • the base unit is provided with feet at its corners.
  • the feet may be adjustable to allow for use over uneven ground.
  • the frame of the base unit also includes sockets at its corners, over which the bottom end of the standards may be fitted. This helps simplify the assembly of the scaffold, as once located into its socket, the standard is held upright by the base unit, leaving the user free to place the next standard.
  • a castor wheel or similar footing assembly is configured to be complementary to the bottom end of the base module. Castor wheels or the like allows the scaffold to be moved about if required. However, it should be appreciated that the wheel will preferably be fitted with a lock or similar friction device to ensure the scaffold cannot move once assembled.
  • the wheels may be height adjustable for use over an uneven substrate.
  • the base module may be configured with a sole plate, and not intended to be moved about without requiring at least partial disassembly of the scaffold.
  • the top end of the standard is configured as a socket or a similar structure such that another standard may be located atop of the first standard.
  • the open end of the standard may have a slightly reduced diameter relative to the main body of the standard.
  • the top end of the first standard acts as a socket for the second standard.
  • the first standard may have its bottom end open, as the bottom end engages with the sockets of the base unit rather than the ground or substrate on which the scaffold is being used.
  • New Zealand scaffolding regulations requires scaffolding higher than 5 metres to be erected under the supervision of a certified scaffolder, which is clearly impractical when the present invention is being used in a domestic setting.
  • this configuration of scaffolding offers the user the greatest degree of options for height given the size of most domestic housing and structures. It is also a suitable size for packaging, storage and transportation of the scaffolding. However, this is not meant to be limiting, and the length of the standards and the height of the assembled scaffold may ultimately depend on the requirements of the user as well as the safety regulations for scaffolds in the country in which the scaffold is to be used.
  • a rung should be understood to mean a horizontal tube which is links and extends between the two standards that make up each pair of standards. In some countries, these may be referred to as ledgers, although in the present specification the term rung will be used for the purpose of describing the invention.
  • the rungs provide support for the platforms that may be carried by the scaffold, as well as providing means by which users can ascend and descend the scaffold.
  • the rungs may be fabricated from any suitable materials such as aluminium tubing or the like. Alternatively, other materials such as steel, carbon fibre, fibreglass or composite materials might be used.
  • the rungs may be formed from tubing of circular cross-section although other sections, such as an oval or rectangular hollow section are possible.
  • the inventor prefers the rungs to be of approximately 0.5 metres in length, making the depth of the scaffold approximately 0.6 metres, which provides a reasonable amount of space in which to work.
  • the scaffold consists of at least four standards, arranged in two pairs opposing each other.
  • the pairs of standards are separated by the approximate length of the platforms to be carried by the scaffold once erected.
  • the rungs of each pair of standards which support the platforms are indexed to ensure the platform is flat when placed atop of corresponding rungs (i.e. each pair of standards have rungs at the same height).
  • the standards may be manufactured with a plurality of apertures which correspond to the cross-section of the rungs. The rungs may then be inserted into the apertures, and, in preferred embodiments of the invention, welded, swaged, or otherwise fixed to the standard.
  • the ends of the rungs may be provided with pegs or similar protrusions which fit into suitably sized apertures in the standard.
  • the standards may include fittings or the like along their lengths which engage with the rungs.
  • this complicates the construction of the scaffold and adds extra components to the overall structure.
  • having the rungs engaging directly with the standards provides a more robust method of construction than engaging the rungs with fittings fastened to the standards.
  • each standard configured to receive four or five rungs is particularly convenient, as this provides the user with sufficient flexibility regarding choices for the position of the platform.
  • the distance between the rungs still allows effective use of the rungs for a user to ascend or descend the scaffold.
  • the standards and their associated rungs are provided to the user of the invention as sub-assemblies.
  • a work platform should be understood to mean a flat surface on a load bearing structure which supports the user and / or paraphernalia and materials when the scaffold is in use.
  • the platform may be manufactured from any suitable material having the necessary strength to support the weight to be carried by the platform.
  • the platform may be constructed from aluminium, wood, heavy duty plastic, or a combination of materials.
  • the platform is formed from a sheet of plywood or a similar wood, and supported by aluminium "C" section-beams or the like about the perimeter of its underside.
  • the platform may include a raised lip or the like about the perimeter of its upper surface to act as a toeboard. This helps ensure that materials and tools and the like is not inadvertently dislodged over the side of the platform.
  • the platform may be provided with a hatch or access panel. When the scaffold is assembled, this allows the user to gain access to the platform above when ascending or the platform below when descending.
  • the scaffold can be set up entirely from within the footprint of the scaffold, making its erection much safer as the user is always inside the scaffold and always has supports around him (or her).
  • the platform may be provided with collapsible safety rails about its perimeter.
  • the safety rails may be inserted into appropriate apertures or fittings about the perimeter of the platform.
  • the safety rails may optionally be provided with side panels, which may help prevent items from rolling off the platform.
  • the platform is provided with a mounting structure which engages with the standards or rungs.
  • the mounting structure is an open recess on the underside of the platform, the recess being of a depth sufficient to allow approximately half of the rung to be covered by the recess.
  • one side of the opening of the recess is configured with a protrusion such that a portion of the underside of the recess engages with the rung.
  • the dimensions of the platform ultimately depend on the requirements of the user as well as the safety regulations for scaffolds in the country in which the scaffold is to be used.
  • an ideal working space for the platform which is convenient for most applications around domestic property is an area of approximately 0.5 to 0.6 metres wide and has a span (length) of 1.1 to 1.2 metres.
  • this is not meant to be limiting, and the dimensions of the platform may depend on the requirements of the user (and any prevailing scaffolding regulations):
  • the platforms and the standard/rung sub-assemblies when laid flat, are of similar dimensions. This is useful for packaging, storage and transportation purposes.
  • the horizontal supports should be understood to mean tubes or the like that extend between opposing standards to provide additional support and ensure the lateral rigidity of the scaffold. These may be bolted or otherwise secured to the standards and provide compressive strength to the scaffold structure. Reference shall now be made to the horizontal supports being struts.
  • the platforms may be thought of as horizontal supports. This may warrant some modification of how the platforms engage with the rungs.
  • the platforms may be provided with a loop structure or the like that wraps around the standard adjacent to the rungs.
  • a bracing system should be understood to mean a system which braces the scaffold module such that when tensioned it places the other scaffold components under compression. This has the effect of locking the various components in place relative to the standards.
  • the components of the scaffold which are temporarily held in place through a friction fit and gravity, are locked in place under the tension of the bracing system. Unless the tension is released, the platforms and struts cannot be removed.
  • the protrusion of the mounting structure of the platform is sufficiently sized that regardless of which direction a reasonable amount of force is applied, the platform will remain in place. This is important, as it means that the platform cannot be accidentally removed.
  • the bracing system may be any suitable component which when mounted to the scaffold urges the standards towards each other.
  • the bracing system may be made from a bar, rod or channel, but preferably constructed from cable or wire.
  • the material used for the cable (or wire) may be any suitable metal, such as stainless steel, carbon fibre or the like.
  • Using cable or wire as the bracing system is particularly advantageous as it provides adequate strength but without the penalty of the substantial weight of a bar or length of tubing.
  • the cables or wire can simply be rolled up for transport and storage.
  • the cable needs to have sufficient slack in order to allow the bracing system to be connected to the standards.
  • the cable may include an over-centre device such as a latch, ratchet or a similar device to allow tension to be increased on the cable.
  • the cables are configured to be connected to the standards by means of suitable fastening means such as pins, hooks, eyelets, thimbles, sockets or other means of attachment which would be readily apparent to a person skilled in the art.
  • suitable fastening means such as pins, hooks, eyelets, thimbles, sockets or other means of attachment which would be readily apparent to a person skilled in the art.
  • the standards are configured with apertures, recess or protrusions complementary to the fastening means being used.
  • each end of the cable is provided with a pin of a size complementary to apertures provided in the standards to attach the cables to the standards.
  • the cable is connected or otherwise linked to an over centre latch secured to the standard.
  • the cable is provided with a thimble for use with a hook.
  • the hook is configured to have one end inserted into a suitable aperture in the opposing standard, with the other end intended to engage with the eyelet.
  • the cable can then be tensioned through operation of the latch on the first standard, locking the hook into the opposing standard and tensioning the overall scaffold module.
  • the hook or pin is configured to prevent the accidental removal of the pin when it is in place.
  • the hook or pin is notched along a portion of its length such that it has a slightly reduced cross section along that portion.
  • the notch portion of the pin bears against the edge of the aperture of the standard.
  • the end of the pin being of a greater diameter and being exterior of the aperture, cannot be accidentally withdrawn through the aperture unless the tension is removed from the cable.
  • Other options to prevent the removal of the pin include safety pins or the like.
  • the bracing structure runs diagonally between opposing pairs of standards. This creates a scaffold that is essentially formed from a number of space frame trusses. A truss is able to withstand a high degree of loading, and provides a very rigid and stable structure. It will be appreciated that the present invention allows formation of a scaffold by placement of a series of modules, each module consisting of a space frame truss including two pairs of standards, a number of rungs, and at least one platform or horizontal support and a bracing system.
  • the modules are put together using a plurality of sub-assemblies, and with fastening mechanisms that are both simple and few in number.
  • the bracing system when tensioned, places the whole module under compression, such that the respective components are locked together.
  • the module closest to the ground forms the base module, which may optionally include a base unit (which may or may not include a platform) and at least one platform (or optionally, a strut), at the top of the module, and a bracing system.
  • a base unit which may or may not include a platform
  • a platform or optionally, a strut
  • a subsequent module can be installed atop the first module.
  • platforms that include hatches allow the user to build up the scaffold from within the body of the scaffold.
  • extra modules can be added according to the requirements of the user.
  • the modules due to the simplicity of construction and use of the bracing system, are quickly and safely erected.
  • additional external bracing may be mounted to the standards. This external bracing effectively increases the footprint of the scaffolding, and improves the stability of the scaffolding as it increases in height.
  • Each external bracing member is provided with a foot that contacts the ground and pinned, bolted or clamped connections to a standard such that it forms a rigid frame. This external bracing may be necessary if the number of modules is such that the height of the scaffold is substantial.
  • the use of external bracing provides additional stability to the overall scaffolding structure.
  • the present invention has a number of advantages, including:
  • Figure 1 is a perspective view of a module of the present invention
  • Figure 2 is a top view of a standard with one embodiment of the bracing system in place;
  • Figures 3a. 3b is a side view of an alternative embodiment of the bracing system;
  • Figure 4 is a side view of the platform mounting of the present invention
  • Figure 5 is a side view of the present invention in use
  • Figure 6 is a side of the present invention being used with an external brace
  • Figure 7 is a top view of the present invention with optional positions for external bracing.
  • Figure 1 illustrates one module of the present invention (1 ) in its assembled form.
  • the scaffold module is formed from two pairs (2, 3) of standards (4a and 4b, 4c and 4d) which face each other.
  • the bracing system is shown as cables (7), running from the top of one standard (4a) to the bottom of the facing standard (4d). Another cable (8) runs in the opposing direction, such that each side of the scaffold module (1 ) (length wise side) is braced by a pair of cables (7, 8).
  • each cable (7, 8) is provided at each end of the cables (7, 8) at each end of the cables (7, 8) at each end of the cables (7, 8) at each end of the cables (7, 8) at each end of the cables (7, 8) at each end of the cables (7, 8) at each end of the cables (7, 8) at each end of the cables (7, 8) at each end of the cables (7, 8) at each end of the cables (7, 8) is provided a locking pin (10), although in some embodiments of the invention, one end of each cable may be connected to a latch (not shown) which is fitted to the standards (4a, 4b, 4c, 4d).
  • the locking pin is as illustrated in Figure 2, and passes through the standard (4a), holding the cables (7, 8) in place.
  • the pin includes a rounded tip (11 ) and a knob (12), so that it is easily manipulated by the user.
  • a portion (13) of the shaft of the pin (10) is recessed, such that it has a smaller diameter at this portion (13) than the remainder of the pin (10).
  • the recessed portion of the shaft (13) engages with the standards (4a) such that it cannot be removed unless the tension on the cable (7) is released.
  • FIG. 3a and 3b a preferred bracing system (14) is illustrated.
  • This depicts a cable (15) with a thimble and ferrule (16) at each end of the cable.
  • One end of the cable (15) is connected to an over centre latch (17) fixed to a standard (4a).
  • the thimble (16) at the other end of the cable is attached to a hook (18) which is to engage with a suitable aperture in the opposing standard (4d).
  • the latch (17) is operated, as in Figure 3b, the cable (15) is tensioned such that the hook (18) cannot be removed from its standard (4d).
  • Figure 4 illustrates one mounting arrangement of the platform (6) relative to the standards (4a - 4d) and rung (5).
  • the beam (19) of the platform (6) is provided with a recess (20) complementary to the profile of the rung (5).
  • the lower edge of the recess (20) is provided with a slight horizontal protrusion (21 ) such that the distance between the protrusions at each end of the beam (19) is greater than the distance between the corresponding rungs (5). This means that as cable tension is applied, the platform (6) is locked into place. It cannot be removed until the cable tension is released.
  • bracing system (7, 8) places the entire module (1 ), as depicted in Figure 1 , under compression creating a space frame truss which has a great degree of rigidity and stability relative to prior art support arrangements such as pin jointed bars.
  • the scaffold structure (22) depicted in Figure 5 is formed from three modules (23 - the base module), 24, 25 - both of which are the extension modules) and the optional base unit (26), each module essentially as described in Figure 1.
  • the base module (23) may be provided with feet (27) or wheels (33 in Figure 6) such that the base unit (26) is not required.
  • the upper platform (28) which is the working space for the user (not shown), is provided with a safety hand rail (29). There is also an intermediate platform (30) for the convenience and safety of the user whilst installing and dismantling the upper module (25).
  • external bracing may be provided, particularly as the height of the scaffold is increased.
  • Figure 6 shows an external brace (31 ) rigidly attached to the scaffold structure (22) and bearing on the substrate (32).
  • Figure 7 illustrates some of the possible positions of the external bracing (31 ), which extends outwards from each corner of the scaffold (22) in plan view.
  • the external bracing required depends on the particular setting in which the scaffold is to be used. If the scaffold is free standing, then bracing from all four corners of the scaffold may be needed.
  • bracing from at least the outward facing corners of the scaffold may be needed.
  • the scaffold may be secured to another structure for support, and thus require no additional bracing.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

L'invention concerne un échafaudage modulaire portatif destiné à un environnement domestique, lequel est facilement monté et démonté selon le besoin. L'échafaudage est formé d'une pluralité de composants comprenant : une pluralité de mâts, les mâts allant par paires, chaque paire de mâts étant reliés par l'intermédiaire d'une pluralité de barreaux ; et au moins un support horizontal, le support horizontal étant conçu pour s'étendre entre des paires de mâts opposés ; et un système de renforcement, caractérisé en ce que le système de renforcement est conçu pour tendre l'échafaudage, de telle sorte que les composants de l'échafaudage sont verrouillés ensemble pour former un bâti ouvert rigide. L'échafaudage peut facultativement inclure des plates-formes conçues pour être placées au-dessus des barreaux des mâts.
PCT/NZ2011/000237 2010-11-10 2011-11-08 Échafaudage et procédé de construction de celui-ci WO2012064204A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ58912410 2010-11-10
NZ589124 2010-11-10

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WO2012064204A2 true WO2012064204A2 (fr) 2012-05-18
WO2012064204A3 WO2012064204A3 (fr) 2012-07-05

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015041622A3 (fr) * 2013-09-11 2015-05-28 Murat Emin AYTAÇOĞLU Innovation relative à un système d'échafaudage pour construction
CN106639281A (zh) * 2016-10-13 2017-05-10 周峰 一种可拆卸式升降脚手架
WO2017144769A1 (fr) * 2016-02-24 2017-08-31 Erik Ahto Oy Échafaudage modulaire
CN114737734A (zh) * 2022-03-14 2022-07-12 北京易盛通达工程技术有限公司 可折叠式外探脚手架

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EP0238680A1 (fr) * 1986-03-24 1987-09-30 Gerhard Dobersch Platelage pour échafaudages
CN1475645A (zh) * 2003-07-17 2004-02-18 上海建工（集团）总公司 刚性构件与柔性构件构成的索排架
WO2005052282A1 (fr) * 2003-11-25 2005-06-09 Accelerector Limited Echafaudage
GB2446445A (en) * 2007-02-06 2008-08-13 John Timothy Stevens Stepped podium access tower

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EP0234657A2 (fr) * 1986-02-18 1987-09-02 de Leeuw, Petrus Johannes Lambertus Système d'échafaudage
EP0238680A1 (fr) * 1986-03-24 1987-09-30 Gerhard Dobersch Platelage pour échafaudages
CN1475645A (zh) * 2003-07-17 2004-02-18 上海建工（集团）总公司 刚性构件与柔性构件构成的索排架
WO2005052282A1 (fr) * 2003-11-25 2005-06-09 Accelerector Limited Echafaudage
GB2446445A (en) * 2007-02-06 2008-08-13 John Timothy Stevens Stepped podium access tower

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015041622A3 (fr) * 2013-09-11 2015-05-28 Murat Emin AYTAÇOĞLU Innovation relative à un système d'échafaudage pour construction
WO2017144769A1 (fr) * 2016-02-24 2017-08-31 Erik Ahto Oy Échafaudage modulaire
CN108699846A (zh) * 2016-02-24 2018-10-23 斯阿赫托公司 模块化脚手架
US20190040637A1 (en) * 2016-02-24 2019-02-07 Csahto Oy Modular scaffold
EP3420159A4 (fr) * 2016-02-24 2019-10-02 Csahto Oy Échafaudage modulaire
CN106639281A (zh) * 2016-10-13 2017-05-10 周峰 一种可拆卸式升降脚手架
CN114737734A (zh) * 2022-03-14 2022-07-12 北京易盛通达工程技术有限公司 可折叠式外探脚手架

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