Reconfigurable access module
The reconfigurable scaffolding module addresses the challenges of complex assembly and safety hazards in conventional scaffolding by transitioning between operational and transport configurations, facilitating efficient assembly and reducing labor and costs.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- PRESTON JOHN CLEMENT
- Filing Date
- 2025-11-07
- Publication Date
- 2026-05-15
AI Technical Summary
Conventional scaffolding systems require significant skilled labor, time, and are hazardous to assemble, especially for large structures, due to their complex and numerous components, leading to potential errors and unsafe working conditions during erection.
A reconfigurable module for access systems with a frame that can transition between an operation configuration for use and a transport configuration for storage, featuring pivot connections and releasable locking mechanisms, allowing easy assembly and disassembly, and enabling efficient stacking and transportation.
The reconfigurable module reduces assembly time, minimizes storage and transportation volume, and enhances safety by providing a stable and efficient scaffolding system that can be easily assembled and disassembled, thus reducing labor and costs while ensuring worker safety.
Smart Images

Figure AU2025051270_15052026_PF_FP_ABST
Abstract
Description
[0001] RECONFIGURABLE ACCESS MODULE
[0002] TECHNICAL FIELD
[0003] This disclosure relates to a reconfigurable module for an access system. The reconfigurable module has been developed especially but not exclusively, for use in multistorey scaffolding for use in the construction, renovation or maintenance of buildings and other structures, and is herein described in that context. However, it is to be appreciated that aspects of the reconfigurable module may have broader application, for example for use in modular walkways and access bridges and is therefore not limited to that use.
[0004] BACKGROUND ART
[0005] It is to be understood that, if any prior art is referred to herein, such reference does not constitute an admission that the prior art forms a part of the common general knowledge in the art, in Australia or any other country.
[0006] The use of scaffolding for construction, renovation or maintenance of buildings is well known. Scaffolding provides a working platform for workers to safely access areas of the building that would otherwise be too high or inaccessible from the floor. Scaffolding may also incorporate safety barriers, which reduces the chance of the workers, tools, loose material and debris from falling from the confines of the scaffolding. Thus, the use of scaffolding is important in ensuring a safe work site.
[0007] Conventional scaffolding can take varying forms, although it generally consists of vertical and horizontal members supporting a platform. In the past, scaffold structures were constructed from wood, and in some countries, bamboo scaffolding comprising of lengths of bamboo tied together is still used. Modem day scaffolding generally comprises of a system of tubular metal pipes coupled together and tied to the building to form the overall scaffolding framework. Scaffold planks, supported by the transoms of scaffolding framework provide the working platform. Such systems are known as “modular scaffolding”, with individual tubular metal pipes, coupling and ties as the basic modular units.
[0008] Such prior art scaffolding requires experienced scaffolders to carefully assemble horizontal and vertical members using coupling components with wedges like those supplied under the name of KwikForm or Layher and assembling tubes, couplers and loose boards together to form the scaffolding. Consequently, for a large structure, this requires significant skilled labour, time and cost to safely erect the scaffolding.
[0009] Furthermore, even a scaffolding of modest size would contain hundreds of components to be fit together and checked. Thus, the integrity of the scaffolding structure is dependent on the scaffolder diligently installing and checking each component. With the pressure of time, fatigue or inclement weather, the scaffolder may be overburdened, leading to possible errors. Also, the large number of loose components of the prior art system requires significant time to erect, and during this erection stage of the scaffolding, the workers around the unfinished scaffold would be working under perilous, and potentially hazardous conditions and height.
[0010] To address at least some of those problems, preformed scaffolding modules have been proposed that are in the form of rigid cuboid frames that are able to be connected side by side and one on top of the other. Such modular systems provide significant advantages in performance, particularly in safety and speed of erecting of the scaffolding. However, difficulties are encountered in transporting and handling both in storage and on site. SUMMARY
[0011] Disclosed is reconfigurable module for an access system comprising a frame that, when in an operation configuration, defines an interior space, the frame comprising opposing frame elements interconnected by connecting elements, and wherein the module is movable between the operation configuration where the opposing frame elements are spaced apart to a transport configuration where the frame elements are in at least close opposing relation.
[0012] In some forms, the module includes at least one platform section disposed in and supported by the frame. In some forms, the platform section is connected to, and supported by, the connecting elements. In some forms, the platform section is integrally formed with the connecting elements such that they are formed as a unitary structure.
[0013] In some forms, in the transport configuration, the frame elements are in abutting relation with the at least one platform being contained within a cavity defined by the abutting frame elements.
[0014] In one aspect, there is disclosed a reconfigurable module for an access system comprising a frame that, when in an operation configuration, defines an interior space, and at least one platform section disposed in and supported by the frame, the frame comprising frame elements interconnected by connecting elements, the module being arranged to be mounted with other said modules in side-by-side relation and, when so mounted, to allow interconnection of the respective interior spaces to define an access passage, wherein the module is movable from the operation configuration in which the opposing frame elements are spaced apart to a transport configuration in which the frame elements are in abutting relation with the at least one platform being contained within a cavity defined by the abutting frame elements. In some forms, the frame elements are formed from frame members that include a profiled section. In some forms, the frame members are angle sections.
[0015] In some forms, the module includes mounting regions on opposite outer faces of the frame that allow the module to be mounted with other access modules in side-by-side relation, and when so mounted, to allow interconnection of the respective interior spaces to define an access passage. In some forms, the mounting regions are provided on the frame members (e.g. the angle section) as apertures that allow for face-to-face abutment of the frame members and interconnecting by releasable connectors disposed through the apertures.
[0016] In a further aspect, there is disclosed a reconfigurable module for an access system comprising a frame that, when in an operation configuration, defines an interior space, the frame comprising frame elements interconnected by connecting elements, and wherein the module is movable from the operation configuration in which the opposing frame elements are spaced apart to a transport configuration, the frame further comprising a plurality of mounting regions formed on opposite outer faces of the frame that allow the module to be mounted, when in the operation configuration, with other said access modules in side-by-side relation and, when so mounted, to receive a releasable connection that secures the modules in side-by-side relation and locks at least one of the modules in its operation configuration.
[0017] In some forms, the frame elements incorporating tubular frame members.
[0018] In some forms, in the transport configuration, the tubular frame members are in abutting relation with the at least one platform being contained within a cavity defined by the abutting frame elements.
[0019] In some forms, the module is arranged to be mounted with other access modules in side-by-side relation, and when so mounted, to allow interconnection of the respective interior spaces to define an access passage. In some forms, a releasable connection is arranged to secure the modules together in side-by-side relation. In some forms, the releasable connection comprises a clamp that locates around adjacent tubular frame members of the modules in side-by-side relation.
[0020] In some forms, the module further comprising a pair of couplings at opposites ends of at least one of the connecting elements for interconnecting the connecting element to the frame elements, the couplings in each pair of couplings providing a fixed pivot connection to allow relative rotation of the connecting element to the frame element to which it is connected.
[0021] In some forms, the pivot in each connection being offset from one another relative to an axis of the connecting element extending between the opposite ends to enable the module to be movable from the operation configuration where the opposing frame elements are spaced apart to a transport configuration.
[0022] In some forms, the couplings in each pair of couplings providing a fixed pivot connection to allow relative rotation of the connecting element to the frame element to which it is connected to enable the module to be movable from the operation configuration where the opposing frame elements are spaced apart to a transport configuration, and a releasable locking arrangement to lock the frame in the operation configuration.
[0023] In some forms, the pair of couplings also provide a releasable locking arrangement in the transport configuration.
[0024] In some forms, the ends of the connecting elements include a plurality of apertures, one aperture providing part of the fixed pivot, whereas the other aperture is arranged to register with an aperture of the frame element to which that end is pivotally connected when in the operation configuration, and when so registered, to receive the releasable connector to lock the module in the operation configuration.
[0025] In some forms, the end of the connecting element is arranged to project from the frame element to which it is pivotally connected so that the other aperture is arranged to register with an aperture in the opposing frame element when in the transport configuration, and when so registered, to receive a releasable connector to lock the module in the transport configuration.
[0026] In some forms, the module includes mounting regions on opposite outer faces of the frame that allow the module to be mounted when in the operation configuration, with other access modules in side-by-side relation, and when so mounted, to allow interconnection of the respective interior spaces to define an access passage, and to receive a releasable connection that secures the modules in side by side relation and locks at least one of the modules in its operation configuration.
[0027] In a further aspect, there is disclosed a reconfigurable module for an access system comprising a frame that, when in an operation configuration, defines an interior space and comprising frame elements interconnected by connecting elements, the module arranged to be mounted with other said modules in side-by- side relation and, when so mounted, to allow interconnection of the respective interior spaces to define an access passage, the module further comprising a pair of couplings at opposite ends of at least one of the connecting elements for interconnecting the connecting element to the frame elements, the couplings in each pair of couplings providing a pivot connection to allow relative rotation of the connecting element to the frame element to which it is connected and wherein the pivot in each connection is offset from one another relative to an axis of the connecting element extending between its opposite ends to enable the module to be movable from the operation configuration in which the opposing frame elements are spaced apart to a transport configuration.
[0028] In a further aspect, there is disclosed a reconfigurable module for an access system comprising a frame that, when in an operation configuration, defines an interior space and comprising frame elements interconnected by connecting elements, and the module being configured to be mounted with other said access modules in side-by-side relation and, when so mounted, to allow interconnection of the respective interior spaces to define an access passage, the module further comprising a pair of couplings at opposite ends of at least one of the connecting elements for interconnecting the connecting element to the frame elements, the couplings in each pair of couplings providing a fixed pivot connection to allow relative rotation of the connecting element to the frame element to which it is connected to enable the module to be movable from the operation configuration in which the opposing frame elements are spaced apart to a transport configuration, and a releasable locking arrangement to lock the frame in the operation configuration.
[0029] In yet a further aspect, there is disclosed a reconfigurable module for an access system comprising a frame that, when in an operation configuration, defines an interior space, the frame comprising opposing frame elements interconnected by at least one connecting element, a pair of couplings at opposite ends of the at least one connecting element interconnecting the connecting element to the opposing frame elements, the couplings in each pair providing a fixed pivot connection that permits relative rotation of the connecting element with respect to the frame elements, wherein a pivot of a first coupling of the pair is offset, relative to an axis of the connecting element extending between its opposite ends, from a pivot of a second coupling of the pair such that the opposing frame elements move between the operation configuration in which the opposing frame elements are spaced apart and a transport configuration in which the opposing frame elements are in at least close opposing relation, the at least one connecting element having enlarged ends with a plurality of apertures including a first aperture forming part of the fixed pivot connection and a second aperture arranged to register with an aperture of the frame element to which that end is pivotally connected in the operation configuration to receive a releasable connector that locks the module in the operation configuration, the enlarged ends being arranged to project so that, in the transport configuration, the second aperture registers with an aperture in an opposing frame element to receive a releasable connector that locks the module in the transport configuration. In a further aspect, there is provided a bundling system for transporting a plurality of reconfigurable access modules, each module being in a transport configuration in which the respective module comprises opposing frame elements interconnected by connecting elements and locked with the frame elements in at least close to abutting relation, the plurality of modules being arranged in a stack with the frame elements extending generally horizontally and the modules being one on top of the other, the bundling system comprising at least one elongate bundling bracket configured to be releasably connected in face-to-face relation to at least some frame elements of the stack of modules and having a lifting eye at an in-use upper end formed with a dog-leg spacing that offsets the lifting eye from the stack, and a support bracket attachable to the elongate bundling bracket to support a second stack of transport modules above an underlying first stack while providing a forklift gap between the stacks, whereby the stack or stacks can be lifted by a lifting apparatus through the lifting eye or by forklift blades received in the forklift gap.
[0030] Also disclosed, is a method of assembling an access system using reconfigurable modules, each module being movable between an operation configuration in which opposing frame elements are spaced apart and define an interior space and a transport configuration in which the opposing frame elements are in at least close opposing relation, the method comprising positioning first and second modules in side-by-side relation with mounting regions of their opposing frame elements in opposition and securing the first and second modules together by a releasable interconnection at the mounting regions such that the interconnection both interconnects the interior spaces to define an access passage and locks at least one of the first and second modules in its operation configuration.
[0031] It is to be appreciated that in the transport configuration, the module occupies less volume as compared to the operation configuration. As such in the transport configuration, the module is ideally suited for transporting either individually or in stacked arrangements on flatbed trucks and the like. However, in the transport configuration, the module may also have other uses, for example being stored. Further, as will be appreciated, if desired, the module could be transported in the operation configuration. Accordingly, the use of the term “transport configuration”, is not limiting the module to a specific use (‘i.e. being transported), but rather is a reference to a physical state of the module.
[0032] BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Embodiments will now be described by way of example only, with reference to the accompanying drawings in which:
[0034] Fig- 1 is a perspective view of a reconfigurable module for an access system in an operation configuration.
[0035] Figs. 2a, 2b and 2c are perspective views of the reconfigurable module for an access system, where Fig. 2a shows the reconfigurable module in an operation configuration; Fig. 2b shows the reconfigurable module in a partially operation / transport configuration; and Fig. 2c shows the reconfigurable module in a transport configuration.
[0036] Fig. 3 is a side view of a platform forming part of the reconfigurable module.
[0037] Fig. 4 is a perspective view of the platform shown in Fig. 3.
[0038] Figs. 5a to 5d are detailed views of couplings of the reconfigurable module; where Fig. 5a shows a front view of a first opposing end of a connecting element forming part of the platform; Fig. 5b shows a side view of the first opposing end shown in Fig. 5a; Fig. 5c shows a front view of a second opposing end of a connecting element forming part of the platform; and Fig. 5d shows a side view of the second opposing end shown in Fig. 5c.
[0039] Figs. 8a and 8b are side views of a connector forming part of the couplings shown in Fig. 6a, 6b and 7a, 7b. Figs. 7a, 7b and 7c are side views of the reconfigurable module for an access system, where Fig. 7a shows the reconfigurable module in an operation configuration; Fig. 7b shows the reconfigurable module in a partially operation / transport configuration; and Fig. 7c shows the reconfigurable module in a transport configuration.
[0040] Figs. 7a-l, 7b-l and 7c-l are detailed side views of couplings forming part of the reconfigurable module, where each of the couplings shown in Figs., 7a-l, 7b-l and 7c-l are indicated in respective Figs. 7a, 7b and 7c.
[0041] Fig. 8a and 8b are top views of the reconfigurable module for an access system; where Fig. 8a shows the reconfigurable module in an operation configuration; and Fig. 8b shows the reconfigurable module in a transport configuration.
[0042] Figs. 8a-l and 8b-l are detailed top views of couplings forming part of the reconfigurable module, where each of the couplings shown in Figs., 8a-l and 8b-l are indicated in respective Figs. 8a and 8b.
[0043] Figs. 9 shows a detailed top view of two reconfigurable modules connected together.
[0044] Fig. 10 shows a releasable connector for use with the reconfigurable modules.
[0045] Figs. Ila and 11b are detailed side views of two reconfigurable modules connected together by the releasable connector shown in Fig. 10.
[0046] Figs. 12 is a perspective view of a plurality of reconfigurable modules forming a partially operation access system.
[0047] Figs. 13 is a side view of a plurality of reconfigurable modules forming a partially operation access system.
[0048] Fig. 14 is a perspective view of two reconfigurable modules in an operation configuration and arranged in alignment for assembly. Fig. 14-1 is a lifting lug forming part of the reconfigurable module as indicated in Fig. 14.
[0049] Figs. 15a to 15c are side views of two reconfigurable modules in alignment for assembly, where Figs. 15a and 15b show the two modules spaced apart; and Fig. 15c shows the two modules assembled together.
[0050] Fig. 16 is a perspective view of a first embodiment of a bundling bracket in a first form.
[0051] Figs. 17 is a perspective view of a second form of the bundling bracket of the first embodiment.
[0052] Fig. 18 is a side view of a reconfigurable module arranged in a transport configuration and connected to bundling brackets of the first form of the first embodiment shown in Fig. 16.
[0053] Fig. 19 is a side view of a plurality of reconfigurable modules arranged in a transport configuration and connected to bundling brackets of the first form of the first embodiment shown in Fig. 16.
[0054] Fig. 20 is a perspective view of a single bundle of reconfigurable modules arranged in a transport configuration and connected to second embodiments of the bundling bracket.
[0055] Fig. 21 is a side view of two bundles of reconfigurable modules arranged in a transport configuration and connected to the bundling brackets of the second embodiment.
[0056] Fig. 21-1 is a perspective view of the second embodiment of the bundling bracket.
[0057] Fig. 22 is a perspective view of a reconfigurable module for an access system in an operation configuration.
[0058] Figs. 23a, 23b and 23c are perspective views of the reconfigurable module for an access system, where Fig. 23a shows the reconfigurable module in an operation configuration; Fig. 23b shows the reconfigurable module in a partially operation / transport configuration; and Fig. 23c shows the reconfigurable module in a transport configuration.
[0059] Fig. 24 is a side view of a platform forming part of the reconfigurable module.
[0060] Fig. 25 is a perspective view of the platform shown in Fig. 24.
[0061] Figs. 26a to 26d are detailed views of couplings of the reconfigurable module; where Fig. 26a shows a front view of a first opposing end of a connecting element forming part of the platform; Fig. 26b shows a side view of the first opposing end shown in Fig. 26a; Fig. 26c shows a front view of a second opposing end of a connecting element forming part of the platform; and Fig. 26d shows a side view of the second opposing end shown in Fig. 26c.
[0062] Figs. 27a to 27c are perspective views of an adapter for use with the platform, where Fig. 27a shows the platform with an adapter at one end; Fig. 27b shows the adapter arranged with respect to a vertical member when the reconfigurable module is in the operation configuration; and Fig. 27c shows the adapter arranged with respect to the vertical member when the reconfigurable module is moved into the transport configuration..
[0063] Figs. 28a, 28b and 28c are side views of the reconfigurable module for an access system, where Fig. 28a shows the reconfigurable module in an operation configuration; Fig. 28b shows the reconfigurable module in a partially operation / transport configuration; and Fig. 28c shows the reconfigurable module in a transport configuration.
[0064] Figs. 28a-l, 28b-l and 28c-l are detailed side views of couplings forming part of the reconfigurable module, where each of the couplings shown in Figs., 28a- 1, 28b-l and 28c-l are indicated in respective Figs. 28a, 28b and 28c.
[0065] Fig. 29a and 29b are top views of the reconfigurable module for an access system; where Fig. 29a shows the reconfigurable module in an operation configuration; and Fig. 29b shows the reconfigurable module in a transport configuration.
[0066] Figs. 29a-l and 29b-l are detailed top views of couplings forming part of the reconfigurable module, where each of the couplings shown in Figs., 29a- 1 and 29b-l are indicated in respective Figs. 29a and 29b.
[0067] Figs. 30 to 32 shows a releasable connector for use with the reconfigurable modules.
[0068] Figs. 33 is a perspective view of a plurality of reconfigurable modules forming a partially operation access system.
[0069] Figs. 34 is a side view of a plurality of reconfigurable modules forming a partially operation access system.
[0070] Fig. 35 is a perspective view of two reconfigurable modules in an operation configuration and arranged in alignment for assembly.
[0071] Fig. 35-1 is a lifting lug forming part of the reconfigurable module as indicated in Fig. 35.
[0072] Figs. 36a to 36c are side views of two reconfigurable modules in alignment for assembly, where Figs. 36a and 36b show the two modules spaced apart; and Fig. 36c shows the two modules assembled together.
[0073] Fig. 37 is a side view of a bundling bracket.
[0074] Figs. 38 is a plan view of a pallet forming part of the bundling bracket of Fig. 16.
[0075] Fig. 39 is an in-line for assembly side view of the pallet shown in Fig. 17.
[0076] Figs. 40a to 40c show a clamp for use with the reconfigurable module, where;
[0077] Fig. 40a shows a perspective view of the clamp; Fig. 40b shows a side view of the clamp; and Fig. 40c shows a front view of the clamp. DETAILED DESCRIPTION
[0078] In the following detailed description, reference is made to accompanying drawings which form a part of the detailed description. The illustrative embodiments described in the detailed description and depicted in the drawings are not intended to be limiting. Other embodiments may be utilised and other changes may be made without departing from the spirit or scope of the subject matter presented. It will be readily understood that the aspects of the present disclosure, as generally described herein and illustrated in the drawings can be arranged, substituted, combined, separated and designed in a wide variety of different configurations, all of which are contemplated in this disclosure.
[0079] Referring to Fig. 1, a reconfigurable access module 10 is shown, which, in the illustrated form, is used for temporary scaffolding. The reconfigurable module 10, in-use, i.e., when in an operation configuration, is generally in the shape of rectangular or square prism block. The general rectangular prism shape is defined by opposing rigid frame elements 12 and connecting elements 14’, 14”. That is, the opposing frames 12 connecting elements 14’, 14” together define an interior space of the module 10. The opposing rigid frames 12 comprise horizontal frame members 16 and vertical frame members 18. The horizontal and vertical frame members 16,18 can be formed of steel angles, e.g., of right-angle profile.
[0080] In the form shown, the steel angles of the frame members 16,18 are arranged such that at least one flat surface 20 of the angles is arranged to be co-planar with a face of the overall prism shape. A barrier in the form of a safety mesh 22 can be provided on one face of the module, i.e., on one of the opposing rigid frames 12. In some forms, a kickboard ‘K’ and a handrail ‘H’ may be additionally provided (as indicated in dotted lines).
[0081] In-use, the modules 10 can be positioned with respect to a building (not shown) so that the safety mesh 22 is on an outer face of the module facing away from the building. In some forms, the safety mesh 22 can also be provided at one (or both) sides 24 of the module 10 for closing off an otherwise open side of the module. The flat surfaces 20 of the horizontal and vertical frame members 16,18 can provide mounting regions 26 for mounting with corresponding mounting regions 26’ of adjacent modules 10’, as shown in Fig. 14, and described later in more detail.
[0082] Referring briefly to Figs. 12 and 13, the mounting regions 26 may be provided with a series of apertures 26. This allows adjacent, overlying / underlying modules 10,10’ to be coupled to each other with a combination of bolts and nuts, or other suitable mechanical fasteners. For example, the apertures 26 can be 18mm in diameter and sized to receive corresponding bolts having a shank diameter of e.g., 16mm. This, advantageously, provides a degree of tolerance to the overall scaffolding module assembly to assist aligning and connecting multiple modules together.
[0083] The modules 10 may also be mounted with other modules 10 in a side-by-side relation. When so mounted, the mounting regions 26 can be connected such that an interconnection of the respective interior spaces of the modules can be formed. Such interconnection defines an access passage therethrough, whereby the platforms 30 of each module 10 extend across the side-by-side mounted modules e.g., forming a walkway therethrough.
[0084] Referring again to Fig 1, two sets of connecting elements 14’, 14” are provided: a first set, i.e., lower connecting elements 14’, are arranged to connect towards to an in-use lower end of the vertical members 18; and a second set, i.e., upper connecting elements 14”, arranged to connect towards a middle of the vertical members 18 of the frames 12.
[0085] The connecting elements 14’, 14” can also be pivotally connected between the opposing frames 12 about the apertures 26. The connecting elements thereby pivotally interconnect between the frames 12 at a respective pair of couplings 28, i.e., joints. As set forth in more detail later, the couplings 28 to allow the module 10 to be reconfiguarable, i.e., to move between an in-use (or operation) configuration (as shown in Fig. 2a) and a transport configuration i.e., for storage / transport (as shown in Fig. 2c).
[0086] A platform 30 can be configured to extend between each set of the connecting elements 14’, 14”. The platforms 30 can be supported by, i.e., connected to, the connecting elements 14’, 14” such that, when located in use between the frames 12, the platform 30 extends between the vertical members 18 of each frame 12. In some form, the connecting elements are separate, and connected to, the platform 30, for example by being welded or otherwise fixed to opposite ends of the platform 30 (as shown in Fig.4). In another form, the connecting elements 14’, 14” may be integrally formed with the platform 30 such that are provide as a unitary component of the module 10.
[0087] The platforms 30 can be sized to locate within the perimeter of the frames 12. In particular, the platform can be located within the perimeter defined by the steel angles, as best shown in Fig. 8a and 8b. The steel angles thereby form a guide for assisting the module 10, and more specifically, the opposing frames 12 to move between the operation and the transport configurations.
[0088] As shown in Fig. 1, the lower connecting elements 14’ can support a corresponding in-use lower platform 30; and the upper connecting elements 14” can support an in-use upper (i.e., middle) platform 30. The platform sections 30 can be formed from a floor mesh, e.g., formed from metal such as pierced steel. In some forms, the floor mesh may comprise of 50mm x 50mm x 4mm mesh or expanded metal mesh for better grip and smaller holes.
[0089] The platforms 30 can be configured to provide a light weight working platform for construction workers, as well as overhead protection from large debris. The platforms 30 can allow wind and water to pass through during inclement weather, thereby reducing the effects on the scaffolding. While not shown, other platforms, such as wooden floorboards or steel floorboards may be used as the platform.
[0090] Referring briefly to Figs. 12 and 13, alternative embodiments of the module 10 can be configured to accommodate additional platforms, e.g., more than two platforms. As shown, a module 10 having two platforms is illustrated separately from the alternative embodiment module 100, comprising three platforms. The addition platforms can be supported by respective connecting elements connecting between the vertical members, i.e., a module having three platforms can have six connecting elements extending between the vertical members. The additional platforms and connecting elements are otherwise configured (and thereby function) in the same manner as set forth previously.
[0091] Referring now to Figs. 2a to 2c, the couplings 28 to allow the module 10 to move between the operation configuration (Fig. 2a) and the transport configuration (Fig. 2c). As set forth in more detail below, the couplings 28 are configured such that the opposing frames 12 can ‘scissor’ about respective connecting elements 14’, 14” when moving between the transport and operation configurations of the module 10. In other words, the couplings 28 between frames 12 and connecting elements 14’, 14” are configured as parallel-motion linkages.
[0092] As best shown in Figs. 5a to 5d, the couplings 28 can be formed between opposite ends 32 of the connecting elements 14’, 14” and respective vertical members 18 of the frames. As best shown in Figs. 2a, 8a-l and 8b-l, each of the opposite end 32 of the connecting elements 14’, 14” can be connected / mounted to an inner surface 18i of the steel angles that form the vertical members 18. As set forth earlier, this allows the connecting elements 14’, 14” to guide the frame members 12 when moving between the operation and the transport configurations.
[0093] As shown in Figs. 5a and 5c, the opposite ends 32 of the connecting elements 14’, 14” can each comprise apertures 34 configured to correspond with the apertures 26 of the vertical members 18. In particular, each of the opposite ends 32 of the connecting elements 14’, 14” can comprise two apertures 34 configured for aligning with two corresponding apertures 26 of the vertical members 18, so as to be connected therethrough.
[0094] As shown, the connecting elements 14’, 14” are shown connected to the vertical members 18. In particular, Fig. 5a and 5b shows a first opposite end 32 of the connecting element 14’, 14” connected to the vertical member 18 by a pivot connector 36 attached, i.e., affixed about an in-use lower aperture 34 of the connecting element 14’, 14”. By comparison, and as shown in Fig. 5c and 5d, a second opposite end 32 of the connecting element can be connected to the vertical member 18 by a pivot connector 36 attached about an upper aperture 34 of the connecting element 14’, 14”.
[0095] As shown in Fig. 7a, the location of the pivot connector 36, either through the upper or lower apertures 34, is different for each of the opposing frames 12. The pivot in each connection is offset from one another relative to an axis A-A of the connecting element extending between the opposite ends. That is, for a first opposing frame 12, the pivot connection is located through the upper aperture 36 and for a second opposing frame 12, the pivot connection is located through the lower aperture 36. This arrangement of connectors 36 provides particular advantages that will be set forth later in more detail.
[0096] Further, the opposite ends 32 of each connecting element 14,14” are enlarged as compared to the majority of the length of the connecting element 14’, 14”. These enlarged ends enable the spacing between the upper and lower apertures 34 to correspond to spacings in the apertures 26 in the vertical members 18, as discussed in more detail below. Further the enlarged ends are also greater than the width of the vertical members 18 so that as the module 10 moves from the operation configuration to the transport configuration, the ends 32 are caused to move from being aligned within a respective vertical member to project from vertical member. In this configuration, the aperture 36 on the projecting portion of the connecting element 14’, 14” is able to register with an aperture 26 on the vertical member 18 of the opposing frame 12. These aligned apertures are in turn able to receive a releasable connector to allow locking in the transport configuration. Yet a further advantage of having the enlarged ends, is that the spacing between the upper and lower apertures 36 is greater thereby increasing the capacity of the coupling 28 to accommodate the moment of the force induced on the modules in use. In the illustrated form, the transition of the enlarged end to the main body of the connecting elements 14, 14” is raked to provide a gusset for the coupling.
[0097] The pivot connector 36 can be a connector of a type that secures the connecting element and the vertical member, but allows free rotation therebetween. For example, the connector may be a rivet 36 (or other connector allowing rotation thereabout), as shown in Figs. 5b and 5d, and shown in detail in Figs. 6a and 6b. Such a rivet 36 can be configured to located, i.e., passed through, each aperture 26,34 of respective vertical members and connecting elements.
[0098] The rivet (or other connector) can be fixedly attached, i.e., permanently attached to the vertical member at a free end 38 of the rivet by e.g., a welded connection ‘W’ (see Fig. 6b). An opposing rivet head 40 can be configured to located against the connecting element 14’, 14” so as to allow the connecting element to freely rotate between the rivet head 40 and the vertical member 18. The rivet 36 and apertures 26,34 can be sized such that the rivet head 40 can locate close to, i.e., loosely against, the connecting element 14’, 14” so as to provide ‘play’, i.e., clearance for the connecting element and vertical member to freely rotate about the rivet 36. In other words, the rivet 34 permits the vertical member and connecting element to pivot relative to each other, i.e., between the operation and transport configurations.
[0099] The second aperture 34 of the opposing ends 32 can be configured as a locking aperture for receiving a releasable connector 42,52. The locking aperture 34 and the releasable connector 42,52 together form a releasable locking arrangement which allow the module to be retained in a rigid configuration when either in the operation configuration (i.e., Fig. 7a), or in the transport configuration (i.e., Fig. 7c). The releasable connector can be e.g., a bolt and nut combination 42, or alternatively, a captive pin 52, as described in more detail later.
[0100] Each of the locking apertures 34 at opposite ends 32 of the connecting elements 14’, 14” are configured to align with an aperture 26 of the vertical members 18 when the frames 12 are positioned in either of the operation or transport configurations. In other words, the spacing between the apertures 34 of the connecting element 14’, 14” and the apertures 26 of the vertical members 18 are the same, so that the apertures of the respective components can align when the frames are pivoted into the operation or transport configurations.
[0101] Referring to the module 10 in the transport configuration; the connecting element 14’, 14” can be sized to have a length that corresponds with the spacing of the apertures 26,34 to allow the locking apertures 34 disposed on the projecting portion of the enlarged end 32 to align with the apertures 26 of the vertical member 18 of the opposing frame 12 when the vertical members are located in the transport configuration of the module 10. In other words, the spacing between the apertures 26,34 together with the length of the connecting element 14’, 14” can allow the alignment of the apertures 26,34 when the frames are in either the vertical configuration (as shown best in Fig. 7a-l) or in the transport configuration (as best shown in Fig. 7c- 1) of the module 10. In some forms, the spacing between the apertures is 80mm.
[0102] Fig. 7b illustrates (in dotted-lines) a path ‘P’ of the bar ends 32 (and their apertures 34) as the vertical members 18 move, i.e., ‘scissor’ into the transport configuration (or away from the transport configuration). In either movement, it can be seen how the spacing of the apertures and the length of the horizontal member allows the apertures of the respective components to align in either the transport or operation configuration.
[0103] When the module is in the operation configuration (Fig. 7a and 7a-l), the locking apertures 26,34 are positioned, in-use, above or below the pivot connectors in vertical alignment, i.e., along (and generally parallel to) the elongate length of the in-use vertical member 18. This alignment of the apertures allows the releasable connector 42,52 to be received therethrough for retaining the module 10 in the operation configuration.
[0104] As set forth in more detail later, once the module 10 is moved into the operation configuration, it may be aligned with another module 10 which has been moved into the operation configuration. As best shown in Fig. 9, 12a and 12b, when the two operation modules are brought together about their vertical members, their respective vertical member and connecting element apertures 26,34 can be aligned for receiving the releasable connector 42,52 therethrough. In effect, two modules 10 can be connected by a common connector 42,52. In an alternative arrangement, a single module 10 may be secured in the operation configuration, i.e., alone, without being coupled to a second (or third) module at its side. In this arrangement, the apertures of the vertical member and connecting element of the single module can receive the connector 42,52 therethrough.
[0105] In either arrangement (i.e., of one or more adjacent, coupled modules), when the vertical member(s) 18 and the connecting element(s) 14’, 14” are secured to one another by the releasable connector, e.g., by nut and bolt combination 42 or captive pin 52, the surfaces of the members 18 and bars 14’, 14” can be held together such that the module(s) behave as a unitary-section structure, thereby enhancing the rigidity of the scaffolding modules.
[0106] Referring now to Fig. 7c, when the module 10 is moved from the operation configuration towards the transport configuration, the locking apertures 34 rotate away from their in-use vertical alignment with their overlying or underlying aperture 34 (i.e., having the rivet 36 therethrough). Once the vertical members are moved relative to the connecting elements into the transport configuration (Fig. 7c), the locking apertures 34 are positioned in-use, horizontally, i.e., to be horizontally aligned with the apertures 26 of the vertical members 18. In other words, the apertures of the connecting element 14’, 14” are aligned to be perpendicular to the length of the elongate vertical members 18.
[0107] As shown in Fig. 7c, when in the transport configuration, the vertical members 18 are located in an abutting relation (i.e., with each other). That is, as the vertical members 18 translate into the transport configuration, the vertical members substantially contact each other along their length, such that there is generally no space, i.e., gap, between the vertical members. In effect, the abutment of the vertical members 18 defines a ‘dead stop’ for the translation, i.e., scissoring motion, of the vertical members into the transport configuration. When in this abutting position, the apertures 26,34 of the connecting element 14’, 14” and the vertical member 18 are configured, i.e., spaced apart, to align such that the releasable connector 42,52 can be received therethrough for locking the vertical members in abutting relation.
[0108] When in the transport configuration, each of the connecting elements 14’ 14” and vertical members 18 are arranged parallel, with the vertical members 18 in abutting relation. Advantageously, this arrangement minimises a space occupied by the module, thereby saving space during transportation or storage of one or more modules 10. As set forth in more detail later, the abutting relation of frames 12 in the transport configuration also allows multiple modules 10 to be bundled, i.e., stacked about their vertical members 18 into ‘lots’.
[0109] Moreover, and as set forth previously, because the platforms 30 are sized to locate within the perimeter of the frames 12, i.e., as defined by the steel angles, the platforms 30 are contained within a cavity defined by the abutting frame elements. This containment of the platforms 30 is shown in Fig. 2c, but more clearly shown in Fig. 7c and Figs. 8b and 8b-l, where the entirety of the platforms 30 are shown to be within the steel angles of the vertical members 18.
[0110] The modules 10 can be locked in the transport configuration by location of the releasable connector 42,52 through the aligned apertures 26,34 as set forth above previously in relation the modules secured in the operation configuration. In some forms, single modules can be locked in the transport configuration, i.e., without connection to other, adjacent modules 10. In other forms, as described in more detail later, a plurality of modules 10 can be transport and stacked for being releasably connected to a bundling bracket 44,45,144 (i.e., a lifting bracket).
[0111] In either form, securing the transport modules about their apertures 26,34 can rigidise the modules for substantially limiting their movement, i.e., of the vertical members and connecting elements. The releasable connector can be a nut and bolt combination that, when inserted through the aperture 26,34 prevents the opposing vertical members 18 from separating, i.e., moving away from the transport configuration. Advantageously, this can allow e.g., a construction worker, to manipulate, e.g., lift, rotate, or otherwise reposition, the modules in the transport position, without the modules 10 opening-up, i.e., the vertical members separating.
[0112] Similarly, when the module is arranged in the operation configuration, the releasable connector, 42,52 when located through the aligned apertures 26,34, rigidly secures the vertical members and connecting elements, i.e., as if the module was not reconfigurable, being fixedly assembled by e.g., welded connections.
[0113] In either configuration of the module 10, the modules can be secured in their respective configuration with releasable connectors located through both apertures 26,34 in opposing ends of the connecting elements. In some cases, only one of the two apertures may be used, i.e., only a single releasable connector is applied for each of the connecting elements 14’, 14”. As the module 10 will remain rigid in either its transport or operation configuration with on a single releasable connection, some redundancy is introduced into the locking arrangement (where releasable connections are used at each end of the connecting elements 14’, 14” for locking) thereby improving the safety of the system.
[0114] Referring now to Fig. 10, in some forms the releasable connector can be the captive pin 52. The captive pin 52 can comprise a pin 46 configured, i.e., sized for receipt through the apertures 26,34 of the vertical members 18 and connecting elements 14’, 14”. The captive pin can further comprise a saddle 48 extending from the pin 46 and configured for receiving a portion of the vertical member and connecting element therewithin, when in-use. The saddle can be generally U- shaped when viewed in profile and spaced from the pin 46 by an arm 50.
[0115] In-use, and as shown in Figs. I la and 1 lb, the pin 46 can be inserted through the apertures 26,34 of two adjacent (e.g., side-by-side) modules 10. Prior to inserting the pin 46 therethrough, the saddle 48 can be raised, i.e., lifted away from the vertical members and connecting elements. In such an orientation of the saddle, the pin can freely pass through the apertures 26,34 without the saddle contacting the vertical members or connecting elements. Once the pin has been inserted through the apertures, it can be swivelled, i.e., rotated about the pin 46 towards the vertical member and connecting element. The U-shape of the saddle 48 can receive the vertical member and the connecting element within therewithin, such that the pin 46 cannot be moved out from the apertures 26,34 (without again raising the saddle).
[0116] Advantageously, the saddle 48 can thereby prevent the captive pin 52 from inadvertently sliding out from its position through the vertical member and horizontal arm. This can prevent e.g., vibrations, or general movement of the modules from dislodging the captive pin during use.
[0117] As exemplified by the arrangements of Figs. 9 to 1 lb, an advantage of the module 10 is that the a single releasable connector can be used to lock two adjacent modules into their respective operation configuration, and to interconnect those two modules together, thereby improving the speed of erecting or dismantling of scaffolding or other access system where those functions are achieved through separate connectors.
[0118] Referring now to Figs. 12 and 13, the modules 10,100 can be stacked vertically above one another to form a scaffolding assembly ‘A’ on a building (not shown). The modules 10,100 can be arranged vertically and horizontally in an array to form the main support structure for scaffolding. The support structure formed by the modules 10,100 is secured to the building at intermittent intervals using building ties (not shown). The platforms 30 of individual modules 10,100 can be adjoined in side-by-side relation to form working platforms for workers. In other words, the working platform is formed from multiple platform sections 30 in side- by-side relation. In some forms, modules 10 having two platforms 30, i.e., two levels, can be assembled to form the support structure. In other forms, the support structure can be formed from an array of modules 100 having three platforms 30, i.e., three levels. In the form shown in Figs. 12 and 13, the support structure can alternatively be formed by a combination of modules 10,100 having two and three levels.
[0119] Referring now to Fig. 14, the mounting regions 26 on in-use upper and lower flat surfaces 20 of the horizontal frame members 16 allow the module 10 to be mounted with another said module 10’, i.e., one-on-top of the other. This enables the modules 10,10’ to be stacked above and below each other, whereby the weight of a modules is distributed across the mounting regions of the adjoining frames 12. Advantageously, the module 10 of the present disclosure can distribute load (i.e., across frame members 16,18) more uniformly than conventional scaffold systems, in which loads are often concentrated at particular points where couples or joint pins join two tubular pipes.
[0120] Referring now to Figs. 14, 14-1 and 15a to 15c, the in-use upper horizontal member 16 can comprise a lifting lug 54. The lifting lug 54 can be configured as a guide to assist assembly of the modules 10, i.e., for aligning and locating two or more modules (i.e., lower and upper modules 10,10’) in abutment. Moreover, the lifting lug 54 can also be configured for connecting to a hoist for lifting the modules, as will be set forth in more detail later.
[0121] Referring firstly to the lifting lug 54 configured for guiding two modules together, Fig. 14 and 15a show two modules 10,10’ aligned for being connected together. The lifting lug 54 can be provided as an extruded angle-piece configured to be mounted to an inside surface 16i of the module 10. As shown in Fig. 15a, the lifting lug 54 is attached to the horizontal member 16 and located towards the vertical members 18 of each frame 10. In this regard, four lifting lugs 54 can be provided for each module 10, i.e., one lifting lug 54 located with respect to each corner of an in-use top of the module. Each lifting lug 54 can be attached to the inside surface 16i of the horizontal member 16 by e.g., welded connection. As best shown in Figs. 15b and 15c, the lifting lugs 54 can be provided with a ‘V’ -shaped profile, whereby a first end portion 56 of the lifting lug 54 can be connected to the horizontal member 16. As shown in Fig. 14-1 a second end portion 58 can be angled to project therefrom. The angled, second end portion 58 provides a ramp surface 60 that can assist guiding two modules 10,10’ together, as set forth in detail below.
[0122] As best shown in Fig. 15a, the lifting lugs 54 can be orientated, in-use, such that their ramped surfaces 60 project from their respective frame 12 towards the other, opposing frame 12, i.e., towards an opposing corner of the module. The ramped surfaces 60 also extend upwardly and away from the module 10. For example, the ramp surfaces 60 can be angled at approximately 45° from the horizontal members 16 when mounted thereat.
[0123] In use, the ramped surfaces 60 of a lower, i.e., underlying module 10 can guide an overlying module 10’. The ramped surfaces 60 extend upwardly, away from the horizontal member 16 of the module 10 such that, when an overlying module 10’ is brought toward, i.e., lowered onto the first module, the ramped surfaces 60 are generally the first points of contact between the two modules 10’, 10.
[0124] As shown in Figs. 15a to 15c, when the overlying and underlying modules 10’, 10 are generally aligned, inward facing edges 62 of the ramped surfaces 60 can be spaced apart so as to ‘fall within’, i.e., locate within a space, i.e., a recess 64 defined by the in-use lower connecting elements 14’ and horizontal members 16 of the overlying module 10’. A spacing ‘U’ between opposing distal ends 62 of the lifting lugs 54 can be less, i.e., narrower than a spacing ‘L’ between the opposing frames 12 of the overlying module 10’. In effect, if the overlying and underlying modules 10’, 10 are misaligned when being brought together, the ramp surfaces 60 can contact against lower horizontal members 16 of the overlying module 10’ to guide the overlying module into alignment with the underlying module 10. The ramped surfaces 60, on entering the recess 64 of the overlying module 10’ and bearing on the frames 12 of the module, will guide the modules to self-align as they are drawn together.
[0125] Advantageously, the ramp surfaces 60 of the lifting lugs 54 thereby limit sideways movement of an overlying module 10’ as it approaches an underlying module 10, i.e., as the two modules are brought into contact. In use, the upper module 10’ and lower module 10, once brought together, can then be secured together with mechanical fasteners through apertures 26 of the frames 12 in order to prevent the overlying and underlying modules from separating.
[0126] As shown in Fig. 15c, once an overlying module 10’ is mounted on top of an underlying module 10, the lifting lugs 54 are fully enclosed within the recess 64, i.e., within the frames 12 of the overlying modules 10’. In this position, the module horizontal frames 12 are in surface-to-surface contact, i.e., face to face contact. When additional modules are mounted in a side-by-side relation, e.g., as shown in Figs. 12 and 13, the vertical members 18 can be in surface-to-surface contact, i.e., about their respective facing flat surfaces 20.
[0127] The lifting lugs 54 can also be configured as attachment points for lifting, i.e., hoisting, the operation modules 10 into position relative to e.g., a building. As shown in Figs. 14 and 14-1, the attachment point may be provided by a hole 66 passing through the ramped surface 60 of the lifting lugs 54. Use of the holes 66 as attachment points is described in more detail later.
[0128] Referring again to Fig. 12, the erection of the scaffolding system will now be described. A ground supporting the plurality of modules 10, 10’, 100 is initially prepared for supporting the weight of the scaffolding assembly. This may include compacting the earth, paving, or setting a concrete foundation. A plurality of scaffold bases (not shown) may then be arranged around the perimeter of the building. The scaffold bases can be arranged to support the modules 10, 10’, 100, and thus a planar layout of the scaffold bases generally provides an overall planar arrangement of the overall scaffold assembly. The scaffold bases are then adjusted to ensure the scaffold bases are level. For example, this may be achieved by altering the height of legs of the scaffold base. Once the scaffold bases are satisfactorily level, adjacent scaffold bases are secured to each other and optionally tied to the building or other support structure.
[0129] The modules 10 may then be arranged onto the scaffold bases. A hoist (not shown) can be attached to the frames 12 of the modules 10, 10’, 100 via the lifting point 66 formed in the lifting lug 54, as set forth earlier. The module can thereby be hoisted onto a corresponding scaffold base and fastened thereto by bolts and nuts through apertures 26 on in-use lower horizontal members 16 of the frame 12, and corresponding apertures on the scaffold base. Subsequent modules can then be hoisted and located onto the remaining scaffold bases and fastened thereupon. The modules can then be further fastened to one another and / or tied to the building.
[0130] Further modules can be arranged above the scaffold bases and preceding modules, until the desired scaffolding assembly ‘A’ is operation. For better efficiency in erection, it may be desirable to mount two or more modules 10, 10’, 100 together before hoisting the mounted modules to the desired location on the scaffolding assembly. This reduces the number of hoists and reduces the number of mounting operations by a scaffolder once the modules are positioned. In effect, this saves time, thus providing a secured scaffolding assembly in less time.
[0131] Dismantling the scaffolding assembly may be achieve by performing substantially the same procedure of erecting the modules, but in reverse. For example, overlying modules, i.e., an upper-most module 10 can be first demounted, i.e., unfastened, from the scaffolding assembly, allowing a crane to hoist and lower the module 10 to ground level. To increase speed, two or more modules may remain coupled to each other and removed simultaneously from the scaffolding assembly. This process can be repeated until the scaffolding assembly is completely disassembled. Once the modules 10 have been separated, i.e., into individual modules, and hoisted to the ground, they may be transport in preparation for transport to e.g., a storage facility, to another worksite, etc. The process of the collapsing the scaffolding module 10 is the reverse of erecting the module as set forth above. That is, the releasable connections 42,52 can be disconnected, thereby allowing the frame 12 to pivot at the couplings 28 so that the frame members 16,18 are configured to be parallel to one another, i.e., as shown in Figs. 2c and 7c. Prior to transport, the releasable connections 42,52 can be replaced through the apertures 26,34 so as to lock, i.e., secure the frame 12 in the transport position.
[0132] As set forth earlier, this compact arrangement of the frames 12 is advantageous as it allows the compact storage and transport of the scaffolding modules. Moreover, the modules 10 comprise few working parts, i.e., the opposing frames connected by connecting elements 14’, 14”, which further assists in simplifying the process of moving the modules 10 into, and from, their transport configurations, i.e., requiring minimal setup and configuration before and after use.
[0133] Referring now to Figs. 16 to 22, the modules 10 may be stacked in the transport configuration in Tots’, e.g., sets of five transport modules 10. As shown in Figs. 19 and 20, the stacked modules 10 may be arranged in a three-dimensional matrix, with modules mounted in frame-to-frame relation, i.e., about their elongate vertical members 18, so as to be stacked on each other. This storage arrangement allows maximum use of storage yard space, i.e., when stored in a storage yard when not in use at worksites. Such a compact storge of the modules 10 can also allow the modules to be stored in e.g., a shipping container for transport.
[0134] As set forth previously, each of the modules 10 may be mounted to the bundling bracket 44,45,144 in clusters, in a vertical stack (as shown in Figs. 18 to 20). In a first embodiment of the bundling bracket 44,45 shown in Figs. 18 and 19, the bundling bracket may be an extruded length of e.g., steel, comprising a plurality of apertures 68 along its length. In a first form as shown in Fig. 16, the bundling bracket 44 can be an extruded length of e.g., steel plate. In a second alternative form, the bundling bracket 45 can be an extruded length of steel angle, i.e., similar in profile to the steel angle forming the frame members 16,18. In either form, the elongate length of the bracket 44,45 can be arranged normal to, i.e., perpendicular to, the elongate length of a transport module 10 and attached to the module as set forth below.
[0135] As shown in Figs. 16 and 18, each module is stacked, i.e., one-on-top-of-another. The stacked modules can be attached to the bracket 44,45 by e.g., a bolted connection about apertures 68. The bundling bracket can be connected in face-to- face relation with the frame members. That is, the flat surfaces 20 of the vertical frame members 18 can be in facing contact with flat surfaces 70 of the brackets 44,45.
[0136] When the bundling bracket 44 is in form shown in Fig. 16, i.e., as the extruded steel plate 44, it can be connected at any aperture along the elongate length of the vertical member 18. Preferably, the bracket 44 is mounted towards the horizontal members 16 of the frame 12. Alternatively, when the bundling bracket 45 is formed of angled steel, i.e., as shown in Fig. 17, it can be connected to a comer of the frame 12, i.e., at each corner, for lifting the module 10 thereat.
[0137] The bundling brackets 44,45 of either form can comprise a lifting eye 72,73 for connecting to a lifting apparatus ‘L’, e.g., of a crane, for lifting the stack of modules 10. In the form shown in Fig. 16, the lifting eye can be an aperture 74 formed at an end of the bracket 44. Alternatively, as shown in Fig. 18, the lifting eye can be a lifting hook 76 attached, e.g., welded at an end of the bracket 45. It should be appreciated that the brackets 44,45 can comprise either type of lifting eye, i.e., aperture 74 or hook 76 as shown in Figs. 16 and 17.
[0138] In some forms, each module 10 in the stack, e.g., of five modules, can be attached to the bundling bracket 44,45 by e.g., nut and bolt combination, or by the captive pin 52. In other forms, only a lower module may be connected to the brackets as shown in Fig. 18, whereby additional transport modules 10 can be located on top of the lower module without connection thereto. An upper, i.e., top-most module 10 can then be connected to the bracket 44,45 so as to apply a positive pressure to the modules located therebetween, thereby ‘interlocking’ the stack of modules together. In either form, the modules 10 can be retained with respect to each other in a secure and stabile manner. The vertical stack of modules 10 can then be handled as one during storage and transportation, thereby obtaining better economy of effort and time.
[0139] Referring now to Figs. 20 to 21-1, an alternative, second embodiment of the bundling bracket 78 is shown. The bundling bracket 78 of this form can be utilised for lifting a stack of transport modules as set forth in relation to the bundling bracket 44, differing in that the bracket is configured to optionally lift two Tots’ of (e.g., five) modules.
[0140] As best shown in Fig. 21-1, the second embodiment of the bundling bracket 78 can be a two-part assembly, comprising an elongate spacing bracket 80 and a support bracket 82. The elongate spacing bracket 80 takes substantially the same form as the bundling bracket 44 set forth above but differs in that an in-use upper end 84 is formed with a bend 86, i.e., a ‘dog-leg’. In the form shown, the bend 86 can be formed by two ninety-degree bends made in the bundling bracket 80. The in-use upper end 84 is bent such that, when connected to a stack of modules 10, the upper end 84 can be spaced from the stack of modules 10 by a distance ‘B’ (see Fig. 21-1).
[0141] A lifting eye 88 can be provided in the upper end 84 for connecting to e.g., a lifting apparatus for lifting the bracket 86 and in turn, the modules 10 loaded thereon. Advantageously, the bend 86 at the upper end 84 is able to space the lifting eye 88, i.e., an aperture, from the modules stacked thereon, such that e.g., cables connecting the brackets to the crane, do not catch on the modules stacked thereon.
[0142] One or more gussets 90 can be provided between the upper end 84 and the bend 86 for reinforcing the upper end of the bundling bracket 80 during lifting operations. In use, the second embodiment of the bundling bracket 80 can be connected to one or more modules 10 as set forth previously, i.e., bolted about apertures 26,92 in respective components. Once a stack, e.g., five modules are mounted onto the bundling bracket 80, the support bracket 82 can be connected to an aperture 92 of the bracket 80 to support a second stack of e.g., five modules thereon.
[0143] In the form shown, the support bracket 82 is a piece of angle steel comprising an aperture 94 formed in a first end thereof, for mounting with the elongate spacing bracket 80. A second end of the support bracket 82 extends from the first end for supporting the second stack of modules above an underlying, first stack of modules. The second end may comprise an aperture 94 for optionally attaching to one of the modules located thereon.
[0144] The support bracket 82, when connected to the elongate spacing bracket 80, can provide a gap 96 between the underlying and overlying stacks. This gap, i.e., space, between the two stacks of modules 10 can be sized to receive a forklift blade (not shown) therebetween. This can allow the stack(s) of modules to be lifted thereat. Since the underlying stack of modules are connected to the bundling brackets 80 by e.g., bolted connection, the forklift blade, when received in the gap 96, can lift the underlying stack of modules when the overlying stack of modules are lifted by the forklift blades.
[0145] Referring to Fig. 22, a reconfigurable access module 110 is shown, which, in the illustrated form, is used for temporary scaffolding. The reconfigurable module 110, in-use, i.e., when in an operation configuration, is generally in the shape of rectangular or square prism block. The general rectangular prism shape is defined by opposing rigid frame elements 112 and connecting elements 114’, 114”. That is, the opposing frames 112 connecting elements 114’, 114” together define an interior space of the module 110. The opposing rigid frames 112 comprise horizontal frame members 116 and vertical frame members 118. The horizontal frame members 116 can be formed of steel angles, e.g., of right-angle profile. The vertical frame members 118 can be formed of closed section, e.g., of circular steel tubing.
[0146] In the form shown, the steel angles of the horizontal frame members 116 are arranged such that at least one flat surface 120 of the angles is arranged to be coplanar with a face of the overall prism shape. A barrier in the form of a safety mesh 122 can be provided on one face of the module, i.e., on one of the opposing rigid frames 112. In some forms, a kickboard ‘K’ and a handrail ‘H’ may be additionally provided (as indicated in dotted lines).
[0147] In-use, the modules 110 can be positioned with respect to a building (not shown) so that the safety mesh 122 is on an outer face of the module facing away from the building. In some forms, the safety mesh 122 can also be provided at one (or both) sides 124 of the module 110 for closing off an otherwise open side of the module.
[0148] The flat surfaces 120 of the horizontal frame members 116 can provide mounting regions 126 for mounting with corresponding mounting regions 126’ of adjacent modules 110’, as shown in Fig. 35, and described later in more detail.
[0149] Referring briefly to Figs. 33 and 34, the mounting regions 126 may be provided with a series of apertures 126. This allows adjacent, overlying / underlying modules 110,110’ to be coupled to each other with a combination of bolts and nuts, or other suitable mechanical fasteners. For example, the apertures 126 can be 18mm in diameter and sized to receive corresponding bolts having a shank diameter of e.g., 16mm. This, advantageously, provides a degree of tolerance to the overall scaffolding module assembly to assist aligning and connecting multiple modules together.
[0150] The modules 110 may also be mounted with other modules 110 in a side-by-side relation via a clamp 163 shown in Fig. 40a. As set forth in more detail later, when so mounted, i.e., in side-by-side relation, the vertical members 119 can be connected such that an interconnection of the respective interior spaces of the modules can be formed. Such interconnection defines an access passage therethrough, whereby the platforms 130 of each module 110 extend across the side-by-side mounted modules e.g., forming a walkway therethrough.
[0151] Referring again to Fig. 22, two sets of connecting elements 114’, 114” are provided: a first set, i.e., lower connecting elements 114’, are arranged to connect towards to an in-use lower end of the vertical members 118; and a second set, i.e., upper connecting elements 114”, arranged to connect towards a middle of the vertical members 118 of the frames 112.
[0152] The connecting elements 114’, 114” can also be pivotally connected between the opposing frames 112 about apertures 126V (see Figs. 26a-26d). The connecting elements thereby pivotally interconnect between the frames 112 at a respective pair of couplings 128, i.e., joints. As set forth in more detail later, the couplings 128 to allow the module 110 to be reconfigurable, i.e., to move between an in-use (or operation) configuration (as shown in Fig. 23a) and a transport configuration i.e., for storage / transport (as shown in Fig. 23c).
[0153] A platform 130 can be configured to extend between each set of the connecting elements 114’, 114”. The platforms 130 can be supported by, i.e., connected to, the connecting elements 114’, 114” such that, when located in use between the frames 112, the platform 130 extends between the vertical members 118 of each frame 112. In some forms, the connecting elements are separate, and connected to, the platform 130, for example by being welded or otherwise fixed to opposite ends of the platform 130 (as shown in Fig. 25). In another form, the connecting elements 114’, 114” may be integrally formed with the platform 130 such that are provide as a unitary component of the module 110.
[0154] The platforms 130 can be sized to locate within the perimeter of the frames 112. In particular, the platform can be located within the perimeter defined by the steel tubing, as best shown in Fig. 29a and 29b. The steel tubing thereby form a guide for assisting the module 110, and more specifically, the opposing frames 112 to move between the operation and the transport configurations. As shown in Fig. 22, the lower connecting elements 114’ can support a corresponding in-use lower platform 130; and the upper connecting elements 114” can support an in-use upper (i.e., middle) platform 130. The platform sections 130 can be formed from a floor mesh, e.g., formed from metal such as pierced steel. In some forms, the floor mesh may comprise of 50mm x 50mm x 4mm mesh or expanded metal mesh for better grip and smaller holes.
[0155] The platforms 130 can be configured to provide a light weight working platform for construction workers, as well as overhead protection from large debris. The platforms 130 can allow wind and water to pass through during inclement weather, thereby reducing the effects on the scaffolding. While not shown, other platforms, such as wooden floorboards or steel floorboards may be used as the platform.
[0156] Referring briefly to Figs. 33 and 34, alternative embodiments of the module 110 can be configured to accommodate additional platforms, e.g., more than two platforms. As shown, a module 110 having two platforms is illustrated separately from the alternative embodiment module 200, comprising three platforms. The addition platforms can be supported by respective connecting elements connecting between the vertical members, i.e., a module having three platforms can have six connecting elements extending between the vertical members. The additional platforms and connecting elements are otherwise configured (and thereby function) in the same manner as set forth previously.
[0157] Referring now to Figs. 23a to 23c, the couplings 128 to allow the module 110 to move between the operation configuration (Fig. 23a) and the transport configuration (Fig. 23c). As set forth in more detail below, the couplings 128 are configured such that the opposing frames 112 can ‘scissor’ about respective connecting elements 114’, 114” when moving between the transport and operation configurations of the module 110. In other words, the couplings 128 between frames 112 and connecting elements 114’, 114” are configured as parallel-motion linkages. As best shown in Figs. 26a to 26d, the couplings 128 can be formed between opposite ends 132 of the connecting elements 114’, 114” and respective vertical members 118 of the frames. As best shown in Figs. 23a, 29a-l and 29b-l, each of the opposite ends 132 of the connecting elements 114’, 114” can be connected / mounted towards an inward facing surface 118i of the steel tubing that forms the vertical members 118. As set forth earlier, this allows the connecting elements 114’, 114” to guide the frame members 112 when moving between the operation and the transport configurations.
[0158] As shown in Figs. 26a and 26c, the opposite ends 132 of the connecting elements 114’, 114” can each comprise apertures 134 configured to correspond with the apertures 126 of the vertical members 118. In particular, each of the opposite ends 132 of the connecting elements 114’, 114” can comprise two apertures 134 configured for aligning with two corresponding apertures 126 V of the vertical members 118, so as to be connected therethrough.
[0159] As shown, the connecting elements 114’, 114” are shown connected to the vertical members 118. In particular, Fig. 26a and 26b shows a first opposite end 132 of the connecting element 114’, 114” connected to the vertical member 118 by a pivot connector 136 attached, i.e., affixed about an in-use lower aperture 134 of the connecting element 114’, 114”. By comparison, and as shown in Fig. 26c and 26d, a second opposite end 132 of the connecting element can be connected to the vertical member 118 by a pivot connector 136 attached about an upper aperture 134 of the connecting element 114’, 114”.
[0160] As shown in Fig. 28a, the location of the pivot connector 136, either through the upper or lower apertures 134, is different for each of the opposing frames 112. The pivot in each connection is offset from one another relative to an axis A-A of the connecting element extending between the opposite ends. That is, for a first opposing frame 112, the pivot connection is located through the upper aperture 134 and for a second opposing frame 112, the pivot connection is located through the lower aperture 134. This arrangement of connectors 136 provides particular advantages that will be set forth later in more detail.
[0161] Further, the opposite ends 132 of each connecting element 114,114” are enlarged as compared to the majority of the length of the connecting element 114’, 114”. These enlarged ends enable the spacing between the upper and lower apertures 134 to correspond to spacings in the apertures 126V in the vertical members 118, as discussed in more detail below. Further the enlarged ends are also greater than the width of the vertical members 118 so that as the module 110 moves from the operation configuration to the transport configuration, the ends 132 are caused to move from being aligned within a respective vertical member to project from vertical member. In this configuration, the aperture 134 on the projecting portion of the connecting element 114’, 114” is able to register with an aperture 126V on the vertical member 118 of the opposing frame 112. These aligned apertures are in turn able to receive a releasable connector to allow locking in the transport configuration.
[0162] Yet a further advantage of having the enlarged ends, is that the spacing between the upper and lower apertures 134 is greater thereby increasing the capacity of the coupling 128 to accommodate the moment of the force induced on the modules in use. In the illustrated form, the transition of the enlarged end to the main body of the connecting elements 114, 114” is raked to provide a gusset for the coupling.
[0163] The pivot connector 136 can be a connector of a type that secures the connecting element and the vertical member but allows free rotation therebetween. For example, the connector may be a fastener 136 (or other connector allowing rotation thereabout), as shown in Figs. 26b and 26d. Such a fastener 136, e.g., a nut / bolt can be configured to located, i.e., passed through, each aperture 126V, 134 of respective vertical members and connecting elements.
[0164] The fastener (or other connector, e.g., rivet) can be releasably attached, i.e., adjustably attached through the vertical member such that at a free end 138 of a bolt can be fastened thereat by a nut 137 (see Fig. 26b). An opposing bolt head 140 can be configured to located against the tubing 118 so as to allow the connecting element 114’, 114” to freely rotate between the tubing of the vertical member 118 and the nut 137.
[0165] The fastener can comprise a bolt in the form of a cup head bolt so that the head 140 does not excessively protrude from the tubing, i.e., compared to a conventional hex-head bolt. Advantageously, the cup head bolt can allow two adjacent modules 110 to be connected together in close proximity to each other.
[0166] The fastener 136 and apertures 126V, 134 can be sized such that the bolt head 140 and nut 137 can locate close to, i.e., loosely against, the respective tubing and connecting element 114’, 114” so as to provide ‘play’, i.e., clearance for the connecting element and vertical member to freely rotate about the fastener 136. In other words, the fastener 136 permits the vertical member 118 and connecting element 114’, 114” to pivot relative to each other, i.e., between the operation and transport configurations.
[0167] Referring to Figs. 27a to 27c, the connecting elements 114’, 114” may alternatively be coupled to the vertical tubing about V-channel adapters 125. The channel adapters 125 are shaped to receive the curvature of the tubing therewithin, so that the tubing can be stably mounted to the connecting elements 114’, 114”. The channel adapters 125 can be affixed, e.g., welded to respective platforms 130 about one of the two opposing ends 132. In one form, this is the front end of the connecting element 114’, 114” (i.e. towards the building structure). In use, when the module is in the operation configuration, the tubing can be received stably within the channel. In order to move the module into the transport configuration, the fastener 136 can be loosened such that the tubing 118 can pivot out from the channel and into a position perpendicular to the channel, as shown in in Fig. 27c. In one form, the tubing 118 at the rear end of the module are affixed to the mesh 122 and as such do not have the capacity move laterally outwards as would be required if to move out from the V-channel adapters 125. As such, the adapters 125 are provided only at the front end. The second aperture 134 of the opposing ends 132 can be configured as a locking aperture for receiving a releasable connector 142,152,242,252. The locking aperture 134 and the releasable connector 142,152,242,252 together form a releasable locking arrangement which allows the module 110 to be retained in a rigid configuration when either in the operation configuration (i.e., Fig. 28a), or in the transport configuration (i.e., Fig. 28c). The releasable connector can be e.g., a threaded fastener combination 142,242, or alternatively, a captive pin 152,252, as described in more detail later.
[0168] Each of the locking apertures 134 at opposite ends 132 of the connecting elements 114’, 114” are configured to align with an aperture 126V of the vertical members 118 when the frames 112 are positioned in either of the operation or transport configurations. In other words, the spacing between the apertures 134 of the connecting element 114’, 114” and the apertures 126V of the vertical members 118 are the same, so that the apertures of the respective components can align when the frames are pivoted into the operation or transport configurations.
[0169] Referring to the module 110 in the transport configuration; the connecting element 114’, 114” can be sized to have a length that corresponds with the spacing of the apertures 126V, 134 to allow the locking apertures 134 disposed on the projecting portion of the enlarged end 132 to align with the apertures 126V of the vertical member 118 of the opposing frame 112 when the vertical members are located in the transport configuration of the module 110. In other words, the spacing between the apertures 126V, 134 together with the length of the connecting element 114’, 114” can allow the alignment of the apertures 126V, 134 when the frames are in either the vertical configuration (as shown best in Fig. 28a- 1) or in the transport configuration (as best shown in Fig. 28c-l) of the module 110. In some forms, the spacing between the apertures is 80mm.
[0170] Fig. 28b illustrates (in dotted-lines) a path ‘P’ of the bar ends 132 (and their apertures 134) as the vertical members 118 move, i.e., ‘scissor’ into the transport configuration (or away from the transport configuration). In either movement, it can be seen how the spacing of the apertures and the length of the horizontal member allows the apertures of the respective components to align in either the transport or operation configuration.
[0171] When the module is in the operation configuration (Fig. 28a and 28a-l), the locking apertures 126V, 134 are positioned, in-use, above or below the pivot connectors in vertical alignment, i.e., along (and generally parallel to) the elongate length of the in-use vertical member 118. This alignment of the apertures allows the releasable connector 142,152,242,252 to be received therethrough for retaining the module 110 in the operation configuration.
[0172] As set forth in more detail later, once the module 110 is moved into the operation configuration, it may be aligned with another module 110 which has been moved into the operation configuration. When the two operation modules are brought together about their vertical tubing members, their respective vertical members can be connected together by clamp 163, as best shown in Figs. 40a.
[0173] Alternatively, a single module 110 may be secured in the operation configuration, i.e., alone, without being coupled to a second (or third) module at its side. In this arrangement, the apertures of the vertical member and connecting element of the single module can receive the connector 142,152,242,252 therethrough.
[0174] In either arrangement (i.e., of one or more adjacent, coupled modules), when the vertical member(s) 118 and the connecting element(s) 114’, 114” are secured to one another by the releasable connector, e.g., by threaded combination 142,242 or captive pin 152,252, the surfaces of the members 118 and bars 114’, 114” can be held together (with or without the adapter 125) such that the module(s) behave as a unitary-section structure, thereby enhancing the rigidity of the scaffolding modules.
[0175] Referring now to Fig. 28c, when the module 110 is moved from the operation configuration towards the transport configuration, the locking apertures 134 rotate away from their in-use vertical alignment with their overlying or underlying aperture 134 (i.e., having the fastener 136 therethrough). Once the vertical members are moved relative to the connecting elements into the transport configuration (Fig. 28c), the locking apertures 134 are positioned in-use, horizontally, i.e., to be horizontally aligned with the apertures 126V of the vertical members 118. In other words, the apertures of the connecting element 114’, 114” are aligned to be perpendicular to the length of the elongate vertical members 118.
[0176] As shown in Fig. 28c, when in the transport configuration, the vertical members 118 are located in an abutting relation (i.e., with each other). That is, as the vertical members 118 translate into the transport configuration, the vertical members substantially contact each other along their length, such that there is generally no space, i.e., gap, between the vertical members. In effect, the abutment of the vertical members 118 defines a ‘dead stop’ for the translation, i.e., scissoring motion, of the vertical members into the transport configuration. When in this abutting position, the apertures 126V, 134 of the connecting element 114’, 114” and the vertical member 118 are configured, i.e., spaced apart, to align such that the releasable connector 142,152,242,252 can be received therethrough for locking the vertical members in abutting relation.
[0177] When in the transport configuration, each of the connecting elements 114’ 114” and vertical members 118 are arranged parallel, with the vertical members 118 in abutting relation. Advantageously, this arrangement minimises a space occupied by the module, thereby saving space during transportation or storage of one or more modules 110. As set forth in more detail later, the abutting relation of frames 112 in the transport configuration also allows multiple modules 110 to be bundled, i.e., stacked about their vertical members 118 into Tots’.
[0178] Moreover, and as set forth previously, because the platforms 130 are sized to locate within the perimeter of the frames 112, i.e., as defined by the steel tubing, the platforms 130 are contained within a cavity defined by the abutting frame elements. This containment of the platforms 130 is shown in Fig. 123c, but more clearly shown in Fig. 28c and Figs. 29b and 29b-l, where the entirety of the platforms 130 are shown to be within the steel tubing of the vertical members 118. The modules 110 can be locked in the transport configuration by location of the releasable connector 142,152,242,252 through the aligned apertures 126V, 134 as set forth above previously in relation the modules secured in the operation configuration. In some forms, single modules can be locked in the transport configuration, i.e., without connection to other, adjacent modules 110. In other forms, as described in more detail later, a plurality of modules 110 can be transport and stacked for being releasably connected to a bundling bracket 144 (i.e., a lifting bracket).
[0179] In either form, securing the transport modules about their apertures 126V, 134 can rigidise the modules for substantially limiting their movement, i.e., of the vertical members and connecting elements. As shown in Figs. 30a and 30b, the releasable connector can be a nut and bolt combination that, when inserted through the aperture 126V, 134 prevents the opposing vertical members 118 from separating, i.e., moving away from the transport configuration. Advantageously, this can allow e.g., a construction worker, to manipulate, e.g., lift, rotate, or otherwise reposition, the modules in the transport position, without the modules 110 opening-up, i.e., the vertical members separating.
[0180] Similarly, when the module is arranged in the operation configuration, the releasable connector, 142,152,242,252 when located through the aligned apertures 126V, 134, rigidly secures the vertical members and connecting elements, i.e., as if the module was not reconfigurable, being fixedly assembled by e.g., welded connections.
[0181] In either configuration of the module 110, the modules can be secured in their respective configuration with releasable connectors located through both apertures 126V, 134 in opposing ends of the connecting elements. In some cases, only one of the two apertures may be used, i.e., only a single releasable connector is applied for each of the connecting elements 114’, 114”. As the module 110 will remain rigid in either its transport or operation configuration with on a single releasable connection, some redundancy is introduced into the locking arrangement (where releasable connections are used at each end of the connecting elements 114’, 114” for locking) thereby improving the safety of the system.
[0182] Referring now to Figs. 30a to 30b, the releasable connector can be the nut and bolt combination 142. In this form, the nut 111 may be attached to the vertical tubing 118 so that when the bolt 113 is received through respective tubing and connecting elements 114’, 114”, the nut is already located in the correct position for receiving the bolt therein. Alternatively, the nut may not be attached to the tubing, such that once the bolt is inserted therethrough, the nut can be manually threaded onto the bolt.
[0183] In an alternative form shown in Figs. 30c to 30e, the releasable connector can be a bolt and inner-thread ferrule 227 combination 242. In this form, the inner-thread ferrule 127 replaces the nut 111, and is located and welded within each vertical tubing 118. In-use, the inner-thread ferrule 227 functions in a similar way to the nut, except that the inner-thread ferrule 227 is fully contained within the tubing. In this way, the bolt 113 can be threadedly received in the inner-thread ferrule 227 for retaining the connecting elements 114’, 114” therebetween.
[0184] Referring now to Figs. 3 la to 31c, in some forms the releasable connector can be the captive pin 152. The captive pin 152 can comprise a pin 146 configured, i.e., sized for receipt through the apertures 126V, 134 of the vertical members 118 and connecting elements 114’, 114”. The captive pin can further comprise a saddle 148 extending from the pin 146 and configured for receiving a portion of the vertical member and connecting element therewithin, when in-use. The saddle can be generally U-shaped, i.e., curved, when viewed in profile and spaced from the pin 146 by an arm 150.
[0185] In-use, and as shown in Figs. 32a and 32b, the pin 146 can be inserted through the apertures 126V, 134 of a module 110. Prior to inserting the pin 146 therethrough, the saddle 148 can be raised, i.e., lifted away from the vertical member and connecting element. In such an orientation of the saddle, the pin can freely pass through the apertures 126V, 134 without the saddle contacting the vertical member or connecting element. Once the pin has been inserted through the apertures, it can be swivelled, i.e., rotated about the pin 146 towards the vertical member and connecting element. The U-shape of the saddle 148 can receive the tubular profile of the vertical member and the connecting element within therewithin, such that the pin 146 cannot be moved out from the apertures 126V, 134 (without again raising the saddle).
[0186] Advantageously, the saddle 148 can thereby prevent the captive pin 152 from inadvertently sliding out from its position through the vertical member and horizontal arm. This can prevent e.g., vibrations, or general movement of the modules from dislodging the captive pin during use.
[0187] In an alternative form shown in Figs. 32a to 32b, the releasable connector can be a spring-loaded captive pin 252. In this form, the pin 246 can be retained relative to a respective connecting element 114’, 114”, i.e., slidable within a sleeve 247. The pin 246 can be configured with respect to a biasing element, e.g., a spring 251, for moving into engagement with a respective vertical member 118. In-use, the spring may be configured such that, when the apertures of the tubing and the connecting elements align, the captive pin 252 automatically moves through the aligned apertures so as to retain the components together (see Fig. 32b). In order to release the captive pin 252, the pin may be pulled (e.g., by a bend 253 in the pin) away from its insertion through the tubing and connecting elements (see Fig. 32a).
[0188] Referring now to Figs. 34, 40a to 40c, two adjacent modules can be connected by clamp 163. The clamp 163 may be releasable and comprise two opposing clamping elements 165a, 165b having complementary cut-outs 167 for receiving the tubing of adjacent modules therewithin. The clamp 163 can be used to lock two adjacent modules into their respective operation configuration. Whilst locked together, the two adjacent modules are spaced apart (in the order of 40mm) to accommodate the shaft 169 of the clamp 163 and to allow passage of one end of the clamp for installation (as described below) and removal. As best shown in Fig. 40b, one of the clamping elements 165a may be smaller, i.e., in width, than a second of the clamping elements 165b. In-use, this can allow the smaller clamping element to fit between the adjacent vertical members 118 of the two adjacent modules, e.g., when the modules are positioned close to each other during assembly. The two clamping elements may be rotatable about a fastener 169 extending therethrough such that, once the smaller clamping elements has been inserted between the two vertical members 118, it can be rotated so the tubing 118 can be received within the cut-outs 165. The fastener can be tightened about the clamping elements to interconnect the two adjacent modules together.
[0189] Referring now to Figs. 33 and 34, the modules 110,200 can be stacked vertically above one another to form a scaffolding assembly ‘A’ on a building (not shown). The modules 110,200 can be arranged vertically and horizontally in an array to form the main support structure for scaffolding. The support structure formed by the modules 110,200 is secured to the building at intermittent intervals using building ties (not shown). The platforms 130 of individual modules 110,200 can be adjoined in side-by-side relation to form working platforms for workers. In other words, the working platform is formed from multiple platform sections 130 in side-by-side relation.
[0190] In some forms, modules 110 having two platforms 130, i.e., two levels, can be assembled to form the support structure. In other forms, the support structure can be formed from an array of modules 200 having three platforms 130, i.e., three levels. In the form shown in Figs. 33 and 34, the support structure can alternatively be formed by a combination of modules 110,200 having two and three levels.
[0191] Referring now to Fig. 35, the mounting regions 126 on in-use upper and lower flat surfaces 120 of the horizontal frame members 116 allow the module 110 to be mounted with another said module 110’, i.e., one-on-top of the other. This enables the modules 110,110’ to be stacked above and below each other, whereby the weight of a modules is distributed across the mounting regions of the adjoining frames 112. Advantageously, the module 110 of the present disclosure can distribute load (i.e., across frame members 116,118) more uniformly than conventional scaffold systems, in which loads are often concentrated at particular points where couples or joint pins join two tubular pipes.
[0192] Upper tubular ends 181 of the vertical members 118 can be sized for receipt within corresponding lower tubular ends 183 of an adjoining module. As best shown in Fig. 36a, the upper ends 181 can be inserted into the lower ends 183. Advantageously, this can assist with alignment of the adjoining modules, but also assist with load / weight distribution between the modules.
[0193] Referring now to Figs. 35, 35-1 and 36a to 36c, the in-use upper horizontal member 116 can comprise a lifting lug 154. The lifting lug 154 can be configured as a guide to assist assembly of the modules 110, i.e., for aligning and locating two or more modules (i.e., lower and upper modules 110,110’) in abutment. Moreover, the lifting lug 154 can also be configured for connecting to a hoist for lifting the modules, as will be set forth in more detail later.
[0194] Referring firstly to the lifting lug 154 configured for guiding two modules together, Fig. 35 and 36a show two modules 110,110’ aligned for being connected together. The lifting lug 154 can be provided as an extruded angle-piece configured to be mounted to an inside surface 116i of the module 110. As shown in Fig. 36a, the lifting lug 154 is attached to the horizontal member 116 and located towards the vertical members 118 of each frame 110. In this regard, four lifting lugs 154 can be provided for each module 110, i.e., one lifting lug 154 located with respect to each corner of an in-use top of the module.
[0195] Each lifting lug 154 can be attached to the inside surface 116i of the horizontal member 116 by e.g., welded connection. As best shown in Figs. 36b and 36c, the lifting lugs 154 can be provided with a ‘V’ -shaped profile, whereby a first end portion 156 of the lifting lug 154 can be connected to the horizontal member 116. As shown in Fig. 35-1 a second end portion 158 can be angled to project therefrom. The angled, second end portion 158 provides a ramp surface 160 that can assist guiding two modules 110,110’ together, as set forth in detail below.
[0196] As best shown in Fig. 36a, the lifting lugs 154 can be orientated, in-use, such that their ramped surfaces 160 project from their respective frame 112 towards the other, opposing frame 112, i.e., towards an opposing comer of the module. The ramped surfaces 160 also extend upwardly and away from the module 110. For example, the ramp surfaces 160 can be angled at approximately 45° from the horizontal members 116 when mounted thereat.
[0197] In use, the ramped surfaces 160 of a lower, i.e., underlying module 110 can guide an overlying module 110’. The ramped surfaces 160 extend upwardly, away from the horizontal member 116 of the module 110 such that, when an overlying module 110’ is brought toward, i.e., lowered onto the first module, the ramped surfaces 160 are generally the first points of contact between the two modules 110’, 110.
[0198] As shown in Figs. 36a to 36c, when the overlying and underlying modules 110’, 110 are generally aligned, inward facing edges 162 of the ramped surfaces 160 can be spaced apart so as to ‘fall within’, i.e., locate within a space, i.e., a recess 164 defined by the in-use lower connecting elements 114’ and horizontal members 116 of the overlying module 110’. A spacing ‘U’ between opposing distal ends 162 of the lifting lugs 154 can be less, i.e., narrower than a spacing ‘L’ between the opposing frames 112 of the overlying module 110’. In effect, if the overlying and underlying modules 110’, 110 are misaligned when being brought together, the ramp surfaces 160 can contact against lower horizontal members 116 of the overlying module 110’ to guide the overlying module into alignment with the underlying module 110. The ramped surfaces 160, on entering the recess 164 of the overlying module 110’ and bearing on the frames 112 of the module, will guide the modules to self-align as they are drawn together.
[0199] Advantageously, the ramp surfaces 160 of the lifting lugs 154 thereby limit sideways movement of an overlying module 110’ as it approaches an underlying module 110, i.e., as the two modules are brought into contact. In use, the upper module 110’ and lower module 110, once brought together with their upper and lower tube ends 181,183 connected together, can then be secured together with mechanical fasteners through apertures 126 of the frames 112 in order to prevent the overlying and underlying modules from separating.
[0200] As shown in Fig. 36c, once an overlying module 110’ is mounted on top of an underlying module 110, the lifting lugs 154 are fully enclosed within the recess 164, i.e., within the frames 112 of the overlying modules 110’. In this position, the module horizontal frames 112 are in surface-to-surface contact, i.e., face to face contact. When additional modules are mounted in a side-by-side relation, e.g., as shown in Figs. 33 and 34, the vertical members 118 can be spaced apart, e.g., by a 40mm gap, for receiving respective clamps 163 therebetween (for connecting the side-by-side modules together).
[0201] The lifting lugs 154 can also be configured as attachment points for lifting, i.e., hoisting, the operation modules 110 into position relative to e.g., a building. As shown in Figs. 35 and 35-1, the attachment point may be provided by a hole 166 passing through the ramped surface 160 of the lifting lugs 154. Use of the holes 166 as attachment points is described in more detail later.
[0202] Referring again to Fig. 33, the erection of the scaffolding system will now be described. A ground supporting the plurality of modules 110,110’, 200 is initially prepared for supporting the weight of the scaffolding assembly. This may include compacting the earth, paving, or setting a concrete foundation. A plurality of scaffold bases (not shown) may then be arranged around the perimeter of the building. The scaffold bases can be arranged to support the modules 110,110’, 200, and thus a planar layout of the scaffold bases generally provides an overall planar arrangement of the overall scaffold assembly.
[0203] The scaffold bases are then adjusted to ensure the scaffold bases are level. For example, this may be achieved by altering the height of legs of the scaffold base. Once the scaffold bases are satisfactorily level, adjacent scaffold bases are secured to each other and optionally tied to the building or other support structure.
[0204] The modules 110 may then be arranged onto the scaffold bases. A hoist (not shown) can be attached to the frames 112 of the modules 110, 110’, 200 via the lifting point 166 formed in the lifting lug 154, as set forth earlier. The module can thereby be hoisted onto a corresponding scaffold base and fastened thereto by bolts and nuts through apertures 126 on in-use lower horizontal members 116 of the frame 112, and corresponding apertures on the scaffold base. Subsequent modules can then be hoisted and located onto the remaining scaffold bases and fastened thereupon. The modules can then be further fastened to one another and / or tied to the building.
[0205] Further modules can be arranged above the scaffold bases and preceding modules, until the desired scaffolding assembly ‘A’ is operational. For better efficiency in erection, it may be desirable to mount two or more modules 110,110’, 200 together before hoisting the mounted modules to the desired location on the scaffolding assembly. This reduces the number of hoists and reduces the number of mounting operations by a scaffolder once the modules are positioned. In effect, this saves time, thus providing a secured scaffolding assembly in less time.
[0206] Dismantling the scaffolding assembly may be achieve by performing substantially the same procedure of erecting the modules, but in reverse. For example, overlying modules, i.e., an upper-most module 110 can be first demounted, i.e., unfastened, from the scaffolding assembly, allowing a crane to hoist and lower the module 110 to ground level. To increase speed, two or more modules may remain coupled to each other and removed simultaneously from the scaffolding assembly. This process can be repeated until the scaffolding assembly is completely disassembled.
[0207] Once the modules 110 have been separated, i.e., into individual modules, and hoisted to the ground, they may be transport in preparation for transport to e.g., a storage facility, to another worksite, etc. The process of the collapsing the scaffolding module 110 is the reverse of erecting the module as set forth above. That is, the releasable connections 142,152,242,252 can be disconnected, thereby allowing the frame 112 to pivot at the couplings 128 so that the frame members 116,118 are configured to be parallel to one another, i.e., as shown in Figs. 123c and 17c. Prior to transport, the releasable connections 142,152,242,252 can be replaced through the apertures 126V, 134 so as to lock, i.e., secure the frame 112 in the transport position.
[0208] As set forth earlier, this compact arrangement of the frames 112 is advantageous as it allows the compact storage and transport of the scaffolding modules. Moreover, the modules 110 comprise few working parts, i.e., the opposing frames connected by connecting elements 114’, 114”, which further assists in simplifying the process of moving the modules 110 into, and from, their transport configurations, i.e., requiring minimal setup and configuration before and after use.
[0209] Referring now to Figs. 37 to 38, the modules 110 may be stacked in the transport configuration in Tots’, e.g., sets of five transport modules 110. As shown in Fig. 40, the stacked modules 110 may be arranged / mounted in frame-to-frame relation, i.e., about their elongate vertical members 118, so as to be stacked on each other. This storage arrangement allows maximum use of storage yard space, i.e., when stored in a storage yard when not in use at worksites. Such a compact storge of the modules 110 can also allow the modules to be stored in e.g., a shipping container for transport.
[0210] As set forth previously, each of the modules 110 may be mounted to the bundling bracket 144 in clusters, in a vertical stack (as shown in Fig. 40). The vertical stack can be loaded onto a pallet 145. The pallet can comprise feet 149 for spacing the pallets from a ground surface. The bundling brackets can be releasably connected to the pallet 145. The bundling bracket 144 and pallet 145 can formed from extruded e.g., steel. In some forms (not shown) the bundling bracket can comprise a plurality of apertures along its length. As shown in Figs. 37, each module is stacked, i.e., one-on-top-of-another. In some forms, the stacked modules can be attached to the bundling bracket 144 by e.g., a bolted connection about apertures.
[0211] As shown in Fig. 37, the bundling bracket 144 can comprise a lifting eye 172 for connecting to a lifting apparatus ‘L’, e.g., of a crane, for lifting the stack of modules 110. The lifting eye can be an aperture 174 formed at an end of the bundling bracket 144. Alternatively, the lifting eye can be a lifting hook attached, e.g., welded at an end of the bracket 144. It should be appreciated that the bundling bracket 144 can comprise either type of lifting eye.
[0212] In some forms, each module 110 in the stack, e.g., of five modules, can be attached to the bundling bracket 144 by e.g., nut and bolt combination, or by the captive pin 152. In other forms, only a lower module may be connected to the brackets, whereby additional modules 110 can be located on top of the lower module without connection thereto. An upper, i.e., top-most module 110 can then be connected to the bundling bracket 144 so as to apply a positive pressure to the modules located therebetween, thereby ‘interlocking’ the stack of modules together. In either form, the modules 110 can be retained with respect to each other in a secure and stabile manner. The vertical stack of modules 110 can then be handled as one during storage and transportation, thereby obtaining better economy of effort and time.
[0213] Variations and modifications may be made to the parts previously described without departing from the spirit or ambit of the disclosure.
[0214] For example, the kickboard ‘K’ and handrail ‘H’ may be removable or permanent.
[0215] The internal kickboard K can be made from mesh or metal sheet and can be disposed at the inner surface 18i of the frame for additional protection. The kickboard K may be constructed of denser metal mesh than the safety barrier, for example 50mm x 10mm x 4mm, and extend approximately 150mm above the scaffolding platform section 30.
[0216] The handrails H can be provided in pairs to provide an upper and lower handrails for additional use for workers. The handrail H can also be provided for workers, i.e., across the safety mesh 22, and may be constructed of steel angle welded to the frame 12. The safety mesh 22 and handrail H each provide a safety barrier for workers, as well as preventing the transgression of large debris or other objects through the scaffolding.
[0217] In further examples, the platforms 30 can be formed of alternative materials, such as wooden floorboards or steel floorboards.
[0218] In further examples, the frames 12 can be reinforced by a series of gussets or brackets formed in e.g., the comers thereof, in order to increase rigidity and strength of the frame 12 and in turn, the module 10.
[0219] In further examples, the modules 10 may comprise the opposing frames 12 connected by connecting elements 14’, 14”, but without the platform sections 30 located thereon. In this form, the platform sections 30 may be positioned and mounted to the modules 10, e.g., about the connecting elements H, after the modules comprising the frames 12 and connecting elements 14’, 14” are moved into the operation configuration.
[0220] In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word “comprise” or variations such as “comprises” or “comprising” is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention.
Claims
CLAIMS1. A reconfigurable module for an access system comprising a frame that, when in an operation configuration, defines an interior space, and at least one platform section disposed in and supported by the frame, the frame comprising frame elements interconnected by connecting elements, the module being arranged to be mounted with other said modules in side-by-side relation and, when so mounted, to allow interconnection of the respective interior spaces to define an access passage, wherein the module is movable from the operation configuration in which the opposing frame elements are spaced apart to a transport configuration in which the frame elements are in abutting relation with the at least one platform being contained within a cavity defined by the abutting frame elements.
2. A reconfigurable module according to claim 1, wherein the module further comprising a pair of couplings at opposites ends of at least one of the connecting elements for interconnecting the connecting element to the frame elements, the couplings in each pair of couplings providing a fixed pivot connection to allow relative rotation of the connecting element to the frame element to which it is connected.
3. A reconfigurable module according to claim 2, wherein the pivot in each connection being offset from one another relative to an axis of the connecting element extending between its opposite ends to enable the module to be movable from the operation configuration where the opposing frame elements are spaced apart to a transport configuration.
4. A reconfigurable module for an access system comprising a frame that, when in an operation configuration, defines an interior space and comprising frame elements interconnected by connecting elements, the module arranged to be mounted with other said modules in side-by-side relation and, when so mounted, to allow interconnection of the respective interior spaces to define an access passage, the module further comprising a pair of couplings at opposite ends of atleast one of the connecting elements for interconnecting the connecting element to the frame elements, the couplings in each pair of couplings providing a pivot connection to allow relative rotation of the connecting element to the frame element to which it is connected and wherein the pivot in each connection is offset from one another relative to an axis of the connecting element extending between its opposite ends to enable the module to be movable from the operation configuration in which the opposing frame elements are spaced apart to a transport configuration.
5. A reconfigurable module according to claim 4, wherein the couplings in each pair of couplings providing a fixed pivot connection to allow relative rotation of the connecting element to the frame element to which it is connected to enable the module to be movable from the operation configuration where the opposing frame elements are spaced apart to a transport configuration, and a releasable locking arrangement to lock the frame in the operation configuration.
6. A reconfigurable module for an access system comprising a frame that, when in an operation configuration, defines an interior space and comprising frame elements interconnected by connecting elements, and the module being configured to be mounted with other said access modules in side-by-side relation and, when so mounted, to allow interconnection of the respective interior spaces to define an access passage, the module further comprising a pair of couplings at opposite ends of at least one of the connecting elements for interconnecting the connecting element to the frame elements, the couplings in each pair of couplings providing a fixed pivot connection to allow relative rotation of the connecting element to the frame element to which it is connected to enable the module to be movable from the operation configuration in which the opposing frame elements are spaced apart to a transport configuration, and a releasable locking arrangement to lock the frame in the operation configuration.
7. A reconfigurable module according to any one of claims 3, 5 or 6, wherein the ends of the connecting elements include a plurality of apertures, a first aperture providing part of the fixed pivot, whereas a second aperture is arrangedto register with an aperture of the frame element to which that end is pivotally connected when in the operation configuration and, when so registered, to receive a releasable connector to lock the module in the operation configuration.
8. A reconfigurable module according to claim 7, wherein the pair of couplings also provide a releasable locking arrangement in the transport configuration.
9. A reconfigurable module according to claim 8, wherein an end of the connecting element is arranged to project from the frame element to which it is pivotally connected such that the second aperture is arranged to register with an aperture in the opposing frame element when in the transport configuration and, when so registered, to receive a releasable connector to lock the module in the transport configuration.
10. A reconfigurable module for an access system comprising a frame that, when in an operation configuration, defines an interior space, the frame comprising opposing frame elements interconnected by at least one connecting element, a pair of couplings at opposite ends of the at least one connecting element interconnecting the connecting element to the opposing frame elements, the couplings in each pair providing a fixed pivot connection that permits relative rotation of the connecting element with respect to the frame elements, wherein a pivot of a first coupling of the pair is offset, relative to an axis of the connecting element extending between its opposite ends, from a pivot of a second coupling of the pair such that the opposing frame elements move between the operation configuration in which the opposing frame elements are spaced apart and a transport configuration in which the opposing frame elements are in at least close opposing relation, the at least one connecting element having enlarged ends with a plurality of apertures including a first aperture forming part of the fixed pivot connection and a second aperture arranged to register with an aperture of the frame element to which that end is pivotally connected in the operation configuration to receive a releasable connector that locks the module in the operation configuration, the enlarged ends being arranged to project so that, in thetransport configuration, the second aperture registers with an aperture in an opposing frame element to receive a releasable connector that locks the module in the transport configuration.
11. A reconfigurable module according to any preceding claim, wherein the frame elements are formed from frame members that include a profiled section.
12. A reconfigurable module according to claim 11, wherein the frame elements comprise angle section frame members having flat faces that define a cavity perimeter in the transport configuration.
13. A reconfigurable module according to claim 11 or 12, wherein the module includes mounting regions on opposite outer faces of the frame that allow the module to be mounted with other access modules in side-by-side relation, and when so mounted, to allow interconnection of the respective interior spaces to define an access passage.
14. A reconfigurable module for an access system comprising a frame that, when in an operation configuration, defines an interior space, the frame comprising frame elements interconnected by connecting elements, and wherein the module is movable from the operation configuration in which the opposing frame elements are spaced apart to a transport configuration, the frame further comprising a plurality of mounting regions formed on opposite outer faces of the frame that allow the module to be mounted, when in the operation configuration, with other said access modules in side-by-side relation and, when so mounted, to receive a releasable connection that secures the modules in side-by-side relation and locks at least one of the modules in its operation configuration.
15. A reconfigurable module according to any one of claims 1 to 10, wherein the frame elements incorporate tubular frame members.
16. A reconfigurable module according to claim 15, wherein the module is arranged to be secured in side-by-side relation to another module by a clamp that locates around adjacent tubular frame members.
17. A reconfigurable module according to claim 16, wherein the clamp comprises two opposing clamping elements having complementary cut-outs to receive the tubular frame members and is configured to maintain a spacing between the tubular frame members sufficient to allow installation and removal of the clamp while the modules remain in their operation configuration.
18. A reconfigurable module according to claim 17, wherein one of the clamping elements is narrower than the other to fit between adjacent tubular frame members when the modules are positioned in close proximity.
19. A reconfigurable module according to any preceding claim, wherein the at least one platform section is joined to the connecting elements.
20. A reconfigurable module according to claim 18, wherein the at least one platform section is integrally formed with the connecting elements as a unitary structure.
21. A reconfigurable module according to claim 18 or 19, wherein the at least one platform section comprises a floor mesh, optionally comprising expanded metal mesh, sized to locate within a perimeter defined by the frame elements.
22. A reconfigurable module according to any preceding claim, wherein, in the transport configuration, the opposing frame elements abut along substantially their entire length to define a mechanical dead stop.
23. A reconfigurable module for an access system comprising a frame that, when in an operation configuration, defines an interior space, the frame comprising opposing frame elements interconnected by connecting elements and at least one platform section disposed in and supported by the frame, the module being movable, while the opposing frame elements remain interconnected by the connecting elements, from the operation configuration in which the opposing frame elements are spaced apart to a transport configuration in which the opposing frame elements are in abutting relation along their length to define a mechanical dead stop and a perimeter cavity within which the at least one platform section is fully contained.
24. A bundling system for transporting a plurality of reconfigurable access modules, each module being in a transport configuration in which the respective module comprises opposing frame elements interconnected by connecting elements and locked with the frame elements in at least close to abutting relation, the plurality of modules being arranged in a stack with the frame elements extending generally horizontally and the modules being one on top of the other, the bundling system comprising at least one elongate bundling bracket configured to be releasably connected in face-to-face relation to at least some frame elements of the stack of modules and having a lifting eye at an in-use upper end formed with a dog-leg spacing that offsets the lifting eye from the stack, and a support bracket attachable to the elongate bundling bracket to support a second stack of transport modules above an underlying first stack while providing a forklift gap between the stacks, whereby the stack or stacks can be lifted by a lifting apparatus through the lifting eye or by forklift blades received in the forklift gap.
25. A bundling system according to claim 24, wherein the support bracket is an angle section having an aperture at a first end for attachment to the elongate bundling bracket and a second end configured to support the second stack above the first stack to provide the forklift gap sized to receive forklift blades.
26. A bundling system according to claim 24 or 25, further comprising a pallet having feet and configured to releasably connect to the elongate bundling bracket, the pallet supporting the stack of transport modules during handling and storage.
27. A method of assembling an access system using reconfigurable modules, each module being movable between an operation configuration in which opposing frame elements are spaced apart and define an interior space and a transport configuration in which the opposing frame elements are in at least close opposing relation, the method comprising positioning first and second modules in side-by-side relation with mounting regions of their opposing frame elements in opposition and securing the first and second modules together by a releasable interconnection at the mounting regions such that the interconnection bothinterconnects the interior spaces to define an access passage and locks at least one of the first and second modules in its operation configuration.
28. The method of claim 27, wherein the opposing frame elements comprise angle section frame members, and securing the first and second modules together comprises aligning registering apertures formed in the mounting regions of the angle section frame members, placing the frame members in face-to-face abutment and inserting a releasable connector through the registering apertures to secure the modules in side-by-side relation and lock at least one of the modules in its operation configuration, the releasable connector comprising at least one of a nut-and-bolt assembly, a captive pin with a saddle configured to prevent inadvertent withdrawal, or a threaded ferrule and bolt assembly.