GB2619545A

GB2619545A - Debris chute module, modular chute assembly and methods of constructing and deconstructing a debris chute

Info

Publication number: GB2619545A
Application number: GB2208475.0A
Authority: GB
Inventors: Donald Clark James
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2023-12-13
Also published as: GB202208475D0

Abstract

A debris chute module 10a, 10b is disclosed, which comprises a chute body including a wall which defines a channel 36a or gutter portion; an access region connected to the heavy-duty chute wall; and a fastening connector portion, accessible via the access region, provided at an upper end of the access region and/or a lower end of the access region for engaging the debris chute module with a further said debris chute module. The connector may have a flange with a bore or a hole for a bolt or screw. The access region may have a ladder and or may have a platform forming a walkway. One side of the chute may be open or unbounded and so may be a C or U shape in cross section. A modular chute assembly comprising a debris chute is defined and a method of constructing or deconstructing a debris chute is also disclosed.

Description

Debris Chute Module, Modular Chute Assembly and Methods of Constructing and Deconstructing a Debris Chute The present invention relates to a debris chute module for forming a chute for the safe removal of debris when carrying out construction and demolition work on a multi-storey building or part thereof. The present invention also relates to a modular chute assembly formed of a plurality of debris chute modules. The invention also pertains to a method of constructing or assembling a debris chute, and a method of deconstructing the debris chute.

During construction and demolition work, such as the demolition and/or internal stripping of a building, debris is generated. In the case of multi-storey buildings, the debris needs to be moved to a ground surface before it can be removed from the building and demolition site. The existing solution is to provide a chute defining a channel with an inlet and an outlet at either end. The chute guides or channels debris inserted via the inlet into the channel to the outlet located below, adjacent to the ground surface. However, there are issues with existing chutes.

One type of chute involves connecting end to end cylindrical or substantially cylindrical plastic sections to form a rubbish chute assembly defining a continuous channel, and suspending the chute assembly. However, such a rubbish chute assembly is easily broken. Furthermore, the rubbish chute assembly is generally at least partly or fully suspended from the building being stripped or demolished, which limits the maximum weight and thus size of the assembly.

An additional issue with existing solutions is that debris falling through the channel may impact the walls of the chute assembly which may be damaged and/or pushed outwardly, weakening the structural integrity of the chute assembly.

The present invention seeks to provide a solution to these problems.

According to a first aspect of the present invention, there is provided a debris chute module comprising: a chute body including a, preferably heavy-duty, chute wall defining a chute channel portion for channelling debris within the chute body; an access region connected to the heavy-duty chute wall; and at least one fastening connector portion provided at or adjacent to an in-use upper end region of the access region and/or an in-use lower end region of the access region for engaging the debris chute module with a further said debris chute module, the at least one fastening connector portion being accessible via the access region The debris chute module forms a channel which in-use guides or channels debris from an upper floor in a multi-storey building being stripped or demolished to a lower floor or ground surface. The chute module therefore increases safety by preventing or inhibiting debris from falling on users below. Fastening connector portions enable the chute module to be secured to a further debris chute module. The access region provides a space within which the user can move around, up and down the chute module. The space within the access region provides several advantages. The access region negates the need to use a separate user-lifting apparatus, such as a lift or cherry-picker. As the user can navigate the access region irrespective of the height of the chute module, the height of a chute assembly formed of several chute modules is not limited by the maximum lifting height of a separate user-lifting apparatus and/or the necessity of a user being able to abseil down a building surface. Furthermore, the access region provides at least some protection to the user from falling debris. Additionally, the access region enables a user to easily access the fastening connector portion or portions. As the access region is preferably connected, and even more preferably integrally formed with the chute body, the overall structural integrity of the debris chute module may be increased. Furthermore, the access region may also serve as a support to stabilise and strengthen the chute body by preventing or inhibiting lateral movement. It is noted that the term 'heavy-duty' here refers to the fact that the material composition of the chute wall is sufficiently strong to withstand impact from falling debris, without resulting in destabilisation of the assembled chute.

Preferably, the at least one fastening connector portion may include a flange. The flange 25 may optionally have a through-bore for receiving a bolt or a screw therein. A flange with an aperture and bolt is a simple yet strong means of connecting two mechanical parts.

Advantageously, a said fastening connector portion may be provided at or adjacent to both the in-use upper end region of the access region and the in-use lower end region of the access region. The debris chute module may be connected or connectable in series to a further debris chute module on one or both ends. Thus, the debris chute module may be an intermediate chute module. By being provided at or adjacent to the ends of the access region and/or chute wall, the fastening connector portion of one module can easily or more easily be connected with the fastening connector portion of an adjacent module, for two reasons at least. Firstly, the fastening connector portions may be automatically in close proximity when two chute modules are adjacent to each other. Secondly, a user positioned in the access region of a debris chute module can easily or more easily reach, and engage or disengage the fastening connector portion of a further, adjacent chute module. This facilitates connecting and disconnecting adjacent debris chute modules. In turn, the health and safety risk to the user is reduced as the user is able to engage or disengage the fastening connector portions from the safety of a secured module, rather than having to enter a non-secured module to do so.

Beneficially, the access region may comprise a platform element forming a walkway. A user can walk on the platform element. Furthermore, a platform element may provide a fall-arrest, for example, if the user climbing a ladder within the access region were to fall. The platform element may also provide a support upon which to place a movable ladder and/or tools.

Additionally, the debris chute module may further comprise a ladder including a plurality of ladder rungs provided at least in part in the access region. Optionally, the ladder rungs may be connected to the chute wall and/or to the access region. A ladder is simple to use, cheap, compact and structurally robust. No moving parts or electricity are required to use a ladder.

Beneficially, the ladder rungs may be integrally formed with the chute wall and/or the access region. The risk of the ladder moving or even falling from the debris chute module during movement of the chute module is reduced or eliminated. A ladder formed of ladder rungs integrally formed with the access region and/or the chute wall may have increased structural integrity, at least compared to a non-integrally formed ladder.

Advantageously, the ladder rungs may be vertically aligned with one another. The ladder is vertical in-use, which is space-efficient.

Furthermore, the access region and/or the chute body may be formed from steel. Steel is easy to shape during manufacture and has high strength. The chute body may be better able to withstand debris impacts. Greater strength also means the module can support more weight, such that a higher, free-standing chute assembly may be constructed. More preferably, the steel may be structural steel, typically stainless steel. The risk of stainless-steel developing rust is reduced or eliminated. The lifespan of the chute module may be increased, particularly if the chute module is used in an external environment.

Preferably, the heavy-duty chute wall may be discontinuous such that the chute channel portion may be unbounded on at least one side of the debris chute module. Additionally, 5 the heavy-duty chute wall may be arranged to form or substantially form a C-shaped or U-shaped chute channel portion. Part of the chute wall may be omitted, such that there is a gap, or opening in the chute wall. Less material is required to form the chute wall of given dimensions, which reduces the overall weight of the chute module. Manufacturing costs may also be reduced as a result of the reduction in materials required during 10 manufacture. Debris can also be inserted into the chute at different heights. A continuous chute wall may, however, be an option.

Furthermore, the access region may include a plurality of interconnected elongate members. Connected or integrally formed elongate members, such as poles, may provide a strong yet light-weight structure.

Preferably, two said access regions may be provided respectively on either side of the chute body. A plurality of access regions provides redundancy, which enables the chute module to be usable, even if one of the access regions becomes unusable, for example by being damaged. The positioning on either side of the chute body spreads out the weight equally or more equally. The centre of gravity of the chute module is consequently likely to be at or adjacent a central, longitudinal axis of the chute module. The overall stability of the chute module is increased as a central centre of gravity reduces the likelihood of the chute module tilting and possibly falling off another chute module below. Additionally, the forces exerted by the chute module on a chute module below are not concentrated to one location or side of the chute module, which increases the structural integrity of both modules.

Beneficially, a said fastening connector portion may be provided at or adjacent to an in-use upper end region and/or an in-use lower end region of each of the two access regions. Each access region has at least one, and optionally several fastening connector portions. Each chute module therefore has a plurality of fastening connector portions, which reduces the forces any individual fastening connector portion needs to withstand. Multiple fastening connector portions also provides redundancy in case of damage to any one of the fastening connector portions.

According to a second aspect of the invention, there is provided a modular chute assembly comprising a first debris chute module, the first debris chute module being a base module, and at least one second debris chute module, the or each second debris chute module being a chute-elongation module engageable on the base module and/or a further chute-elongation module, optionally at least one of the first and second debris chute modules being a debris chute module being in accordance with the first aspect of the invention, the chute channel portions of the first debris chute module and the or each second debris chute module forming a continuous chute channel when stackably interengaged with one another.

A plurality of modules may be connected to form a chute assembly of greater height Neither, any number or all modules may be in accordance with the first aspect of the invention. The chute assembly may be used for a taller building and/or for a high floor in a multi-storey building.

Preferably, the first debris chute module may comprise a chute exit in or instead of a front wall-portion of the heavy-duty chute wall. A user can access the channel, and debris within, without having a stand directly beneath the chute module, which may be hazardous. The chute exit may be provided in a wall-portion, which is preferably, but not necessarily, a front wall-portion. Alternatively, a wall-portion may be omitted entirely to provide a chute exit.

Beneficially, the first debris chute module may be wider than the or each second debris chute module. Additionally, the chute channel portion of the first debris chute module may be wider than the chute channel portion of the or each second debris chute module. The base module is wider than the, or at least one of the chute-elongation modules. As the wall-portions of the chute wall of the base module are further out compared to the corresponding wall-portions of the chute wall of the chute-elongation module, the risk of debris impacting the wall-portions of the base module is reduced. Additionally, debris may form a larger pile on the ground surface before contacting the wall-portions of the base module.

Furthermore, the access region of the first debris chute module may be positioned 30 outwardly of the access region of the or each second debris chute module relative to the chute channel. A wider base may provide greater stability to the chute assembly overall.

Optionally, the access region of the base module may further comprise a lintel element. The lintel element provides additional structural support to the chute-elongation module and/or the base module. The lintel element may prevent or inhibit wall-portions of the chute wall from accidentally moving apart. Additionally or alternatively, the lintel element may provide protection to a user against falling debris.

Alternatively, the base module and the chute-elongation module may be identical to each other. The base module may be interchangeable with the or any chute-elongation module.

According to a third aspect of the invention, there is provided a method of constructing a debris chute for demolition or internal stripping of a multi-storey building, the method comprising the steps of: a] providing a modular chute assembly, preferably in accordance with the second aspect of the invention; b] positioning the first debris chute module at or adjacent to a base of the building; and c] hoisting a second debris chute module onto the first debris chute module and interconnecting the first and second debris chute modules together via the respective fastening connector portions from within the access region of the first or second debris chute module to thereby form a continuous chute channel. The debris chute modules can be assembled easily and quickly into a chute assembly due to providing means for a user to easily move to the appropriate level and connect fastening connector portions, without needed a separate user-lifting device.

Beneficially, the method may further comprise a step d] of hoisting a further second debris chute module onto the said second scaffold module and interconnecting the said and further said second debris chute modules together via the respective fastening connector portions from within the access region of the said and/or further said second debris chute module. The height of the chute assembly may be increased as required, according to the height of the building.

Advantageously, the continuous chute channel may be bounded on one side along at least part of a height of the modular chute assembly by the multi-storey building. The building may close or substantially close the opening extending longitudinally along the chute assembly so as to provide a channel which is closed or substantially closed. This prevents or inhibits debris from exiting the channel when falling whilst also enabling the modules to be formed of less material, resulting in a lighter structure and lower manufacturing costs. Debris can also be inserted into the channel at a plurality of heights, such as through windows or apertures in the wall on different levels of the multi-storey building.

According to a fourth aspect of the invention, there is provided a method of deconstructing a debris chute for demolition or internal stripping of a multi-storey 5 building, the method comprising the steps of a] providing a modular chute assembly, preferably in accordance with the second aspect of the invention, in an assembled condition; b] disconnecting the two or the two uppermost debris chute modules of the modular chute assembly by disengaging the fastening connector portions of respective debris chute modules from within the access region; c] lifting the or the uppermost 10 second debris chute module off the debris chute module below and lowering the or the uppermost second debris chute module to a ground surface; d] optionally, repeating steps b] and c] as required.

The deconstruction of the chute assembly is faster and easier as not requiring the user to be lifted via a user-lifting device. Furthermore, each module is fast and easy to remove 15 as formed as one unit.

The invention will now be more particularly described, by way of example only, with reference to the accompanying drawings, in which: Figure 1 shows a front representation of a first embodiment of a debris chute module in accordance with the first aspect of the invention, in the form as a base module; Figure 2 illustrates a back representation of the debris chute module of the Figure Figure 3 is a top plan representation of the debris chute module of Figure 1, positioned next to a wall of a building; Figure 4 is a cut-away representation of the debris chute module of Figure 2 taken 25 along line A-A in Figure 2, the debris chute module being positioned next to a wall of a building; Figure 5 illustrates a front representation of a second embodiment of a debris chute module in accordance with the first aspect of the invention, in the form of a chute-elongation module; Figure 6 shows a top plan representation of the debris chute module of Figure 5, next to a wall of a building; Figure 7 illustrates a front representation of an embodiment of a modular chute assembly in accordance with the second aspect of the invention in-use, the modular 5 chute assembly including the debris chute module of Figure 1 and two debris chute modules as shown in Figure 5; Figure 8 is a side representation of the modular chute assembly of Figure 7; Figure 9 is a partial cut away front representation of a third embodiment of a debris chute module, in accordance with the first aspect of the invention, in the form of a 10 chute-elongation module, with the access regions, fastening connector portions, and parts of the chute body omitted for clarity; Figure 10 shows a top plan representation of an access region, a fastening connector portion and part of a framework of a chute body of the debris chute module of Figure 9; Figure 11 is a top plan representation of the fastening connector portions of the third embodiment of debris chute module; and Figure 12 illustrates a front cut-away representation of the third embodiment of debris chute module taken along line B-B in Figure 10, with the debris chute module being anchored to a building.

Referring firstly to Figure 1, there is shown a module 10a for a chute assembly 12, as shown in Figure 7, for enabling the removal of debris during construction and/or deconstruction of a building or structure 13, the position of which is illustrated in Figures 3, 4, 6, and 8. The module 10a may be referred to as a chute module or a debris chute module. The module 10a in-use provides a guiding structure for guiding or channelling debris safely to a module 10a immediately below and/or to a ground surface 14. The module 10a in-use also provides a support structure for a user to be able to move around and/or climb the chute assembly 12. Figure 1 shows a view from the front of the module 10a. Figure 2 is a rear view of the same module 10a. Figure 3 is a top plan view of the module 10a.

The module 10a in Figure 1 is in-use ground engaging. Such a module may be referred to as a ground-engaging module, a base module, a base debris chute module, a first debris chute module, the first chute module, or the first module, for clarity. There may be a plurality of base modules, but preferably there is only one base module 10a. The first 5 module 10a includes a chute body 16a, an access region 18a, and at least one fastening connector portion 20a, although any of the above features may be omitted and/or a plurality of any of the above features may be provided. Preferably, the access region 18a and/or the chute body 16a are formed of steel, preferably structural steel, but either or both may additionally or alternatively comprise any non-steel alternative material. More 10 preferably, the access region 18a and/or the chute body 16a are formed only of steel.

The chute body 16a has a chute wall 22a. The chute wall 22a is able to withstand impacts from debris. Thus, the chute wall 22a may be said to be heavy-duty. The chute body 16a and/or the module 10a also has a height 24a, a width 26a and a depth 28a.

The chute wall 22a has at least one, and more preferably a plurality of wall-portions 30a. 15 In the preferred embodiment, the chute wall 22a of the base module 10a includes two wall-portions 30a, although one, three or at least four wall-portions may be an option.

The, each, or at least one wall-portion 30a is preferably planar or part planar but all, one or more wall-portions may be non-planar. The module 10a of at least the chute wall 22a thereof may form a polygon or part thereof in transverse cross-section. As such, the chute wall-portions 30a may be arranged to form or substantially form edges of the polygon in transverse cross-section. The polygon is preferably a square or rectangle, as illustrated in dashed lines in Figure 4. Any other shape or part thereof may be envisioned, such as a trapezium, a trapezoid, a quadrilateral or part of a triangle, by way of example only.

The two wall-portions 30a of the base module 10a are preferably spaced apart from each other. The two wall-portions 30a may also be considered to be opposite each other. The two wall-portions 30a are preferably side wall-portions 30a, as shown, but could be the front and back wall-portions in a modified embodiment. In the shown embodiment, each of the two wall-portions 30a preferably has a first or upper wall-sub-portion 31a and a second or lower wall-sub-portion 31a', but either could be omitted. Further wall-subportions may be envisioned. The second wall-sub-portions are preferably parallel or substantially parallel with each other. The first wall-sub-portions are preferably nonparallel with each other.

However, it may easily be envisioned that any of: opposing wall-portions, first wall-subportions, second wall-sub-portions, and any further wall-sub-portions may be parallel or substantially parallel or non-parallel to each other.

The height 24a is shown in Figure 1 as a double headed dashed arrow. Preferably, the 5 height 24a is at least 2 metres, but less than 2 metres may be an option. More preferably, the height is at least 3 metres, and even more preferably at least 4 metres. In the shown embodiment, the height is 4.5 metres.

The width 26a, represented by the horizontal dashed arrow in Figure 4, of the chute body 16a is considered to be the distance between opposing, side wall-portions 30a. In the present embodiment, the width 26a of the chute body 16a is fixed along at least part of the height 24a of the chute body 16a as the second wall-sub-portions 31a' are parallel to each other. As shown in Figures 1 and 2, as the first wall-sub-portions 31a, are nonparallel to each other, the width 26a is variable along part of the height 24a of the chute body 16a.

The width 26a of the chute body of the base module 10a is at least 2 metres, but less than 2 metres may be an option. More preferably, the width 26a is at least 3 metres, and even more preferably at least 4 metres. In the shown embodiment, the width 26a of the chute body of the base module is 5.12 metres. For clarity, the term "width" is also used to refer to the same dimension of the access region 18a or the module 10a. In other words, for all features, the width is always measured along the same axis that is used to determine the width of the chute body 16a.

For example, the width 26a' of the module 10a is also illustrated in Figure 4 as a double headed dashed arrow. The width 26a' of the module 10a is preferably fixed along all or at least part of the height and/or all or at least part of depth of the module 10a.

Similarly, the term "depth" is also used to refer to the same dimension of the access region 18a or the module 10a. In other words, for all features, the depth is always measured along the same axis that is used to determine the depth of the chute body 16a.

Again, the term "height" is also used to refer to the same dimension of the access region 30 18a or the module 10a. In other words, for all features, the height is always measured along the same axis that is used to determine the height of the chute body It could easily be envisioned that the entirety of the side wall-portions are parallel to each other. Alternatively, the opposing side wall-portions are not planar and/or not parallel, the width may be variable along the depth and/or height of the module.

The depth 28a, represented by the vertical dashed arrow in Figure 4, is perpendicular to 5 the width 26a in a transverse plane. The depth 28a is considered to be the distance between a front wall-portion or corresponding opening where the front-wall portion is omitted, and a back wall-portion or a corresponding opening where the back wall-portion is omitted. Preferably, the depth 28a is at least 0.5 metre, but less than 0.5 metre may be an option. More preferably, the depth 28a is at least 1 metre, and even more 10 preferably at least 2 metres. In the shown embodiment, the depth 28a is 2.13 metres.

The plurality of the wall-portions 30a of the chute body 16a together define a channel inlet 32a, a channel outlet 34a, a chute channel portion 36a, a back opening 38a, and a chute exit 40a but a plurality of any of the above may be provided and/or any of the above may be omitted. Although the channel inlet and the back opening are two distinct features here, they may optionally even be same feature in an alternative embodiment. Similarly, the channel outlet and the chute exit are distinct here but may optionally be the same feature.

The channel inlet 32a is an aperture which enables debris to be inserted into the module 10a, preferably but not necessarily from above.

The channel outlet 34a is an aperture which enables debris to exit the module 10a. Preferably, the channel outlet 34a is opposite the channel inlet 32a. More preferably, the channel outlet 34a is overlaid or overlapped in use by the channel inlet 32a. It is understood that the channel outlet 34a of the base module 10a in-use may be obstructed by the ground surface, as is the case here. In this case, the channel outlet 34a does not function in-use as an outlet for debris. In that case, the channel outlet 34a may be referred to as a channel opening. The channel outlet may even be omitted entirely from the base module. For example, the chute body may further comprise a floor. The floor may be connected or connectable to the chute wall.

A plurality of chute channel portions 36a of several modules together form a chute 30 channel 42. Thus, the chute channel portion 36a of one module 10a is only a part of said chute channel 42.

The chute channel portion 36a of a module 10a extends from the channel inlet 32a to the channel outlet 34a for channelling debris within the chute body 16a. The chute channel portion 36a defines an in-use vertical axis 44a. In-use, debris 46 fall along or substantially along the axis 44a. If a plurality of channel portions 36a are provided to form the chute channel 42, the axis 44a extends through the chute channel 42. Axis 44a is represented as a dashed line in Figure 1.

For clarity, the axis 44a may be referred to as a longitudinal axis 44a. Any plane which is normal to the longitudinal axis 44a may be referred to as a transverse plane. Any plane which contains or is parallel to the longitudinal axis 44a may be referred to as a longitudinal plane.

The back opening 38a is an aperture or gap either extending in a back wall-portion or, more preferably, between two side wall-portions 30a. In other words, the heavy-duty chute wall 22a is discontinuous such that the chute channel portion 36a is unbounded on at least one side, face or surface of the base module 10a. Here, the or a said side of the base module 10a is a back wall-portion. The back opening 38a is positioned in-use at or adjacent to a building being stripped, demolished or built. The back opening 38a may thus be obstructed by the building. In other words, the chute channel portion 36a of the preferred embodiment is open but in-use closed or substantially closed by the building. The back opening 38a extends along all or along part of the height 24a of the module 10a. Thus, the heavy-duty chute wall 22a may be arranged to form or substantially form a U-shaped chute channel portion 36a.

The chute exit 40a, also referred to as a user access, is an opening which in-use enables a user to access the channel 42 and/or debris 46 to exit the chute channel portion 36a of the base module 10a. This may be beneficial to enable a user to remove debris 46 from the channel 42. Preferably, the chute exit 40a has a dimension and/or shape sufficient to enable at least a user to fully traverse the chute exit 40a and enter the channel 42. Optionally, the chute exit 40a may have a dimension and/or shape that may enable a tool and/or vehicle, such as a digger, to extend at least in part through the chute exit 40a and into the channel 42. However, it may easily be envisioned that the chute exit may only permit part of a user's body, such as an arm, to be inserted thereinto.

Part or all of a wall-portion 30a may be omitted to provide the chute exit 40a. In the preferred case, the wall-portion 30a is a front wall-portion but any other wall-portion, such as either or both side wall-portions, may be options. If a back opening 38a is provided, the chute exit 40a is preferably provided opposite the back opening 38a, but this is optional The, each or at least one access region 18a in-use provides a stabilising support to the chute body 16a of a module 10a. The access region 18a is also dimensioned for 5 receiving a user therein. The, each, or at least one access region 18a is connected to the or a said wall-portion 30a of the heavy-duty chute wall 22a, preferably integrally so.

The access region 18a preferably extends along all the height 24a of the associated wall-portion 30a but along a major or even a minor portion of the height of the wall-portion may be envisioned. The, each or at least one access region 18a also has a first end region 48a, and a second end region 50a opposite the first end region 48a. The height of the access region 18a preferably matches or substantially matches the wall-portion height 24a, but may be smaller or greater. Matching heights enable the first end region 48a of a, notionally first, access region 18a is at least adjacent to, and more preferably abuttable or engageable in-use with a second end region 50a of a corresponding access region 18a of a, notionally second, adjacent module 10a. Additionally or alternatively, the second end region 50a of the notionally first access region 18a is at least adjacent to, and more preferably abuttable or engageable in-use with a first end region 48a of a corresponding access region 18a of a, notionally third, adjacent module 10a. The first end region 48a may be referred to as an in-use lower end region. The second end region 50a may be referred to as an in-use upper end region.

Preferably, each module 10a has a plurality of access regions 18a. At least two distinct wall-portions 30a of a module 10a are provided with one or more access regions 18a each. In the shown embodiment, the side wall-portions 30a are each provided with an access region 18a. Thus, two said access regions 18a are provided respectively on either side of the chute body 16a. The or each access region 18a of the module 10a may optionally be referred to as a tower.

In the shown embodiment, the, each or at least one access region 18a is optionally contained within or defined at least in part by an exoskeleton, but no exoskeleton my be an option. The or each exoskeleton in the preferred embodiment includes a plurality of interconnected elongate members 52a. Furthermore, the, each or at least one access region 18a further includes a platform element 54a and a lintel 56a but either feature may be omitted and/or a plurality of either may be provided.

The elongate members 52a may be in-use vertical, horizontal and/or tilted. The elongate members 52a may be considered to form a scaffold tower portion. A plurality of in-use stacked scaffold tower portions may thus form a scaffold tower.

The, each or at least one fastening connector portion 20a in-use enables the base 5 module 10a to be engageable with at least one further said debris chute module, which may be another base module 10a, or may be another type of debris chute module, such as that described below. Thus, a fastening connector portion 20a may be referred to as a module-fastening connector portion or plate. More preferably, the, each or at least one of the modules has a plurality of fastening connector portions 20a, although one or even 10 no fastening connector portions may be provided on all or a subset of modules. A wall-portion 30a and/or access region 18a may be provided with at least one fastening connector portion 20a.

The, each, or at least one fastening connector portion 20a is provided at or adjacent to either or both the first end region 48a and the second end region 50a. Even more preferably, each module 10a preferably has at least two fastening connector portions 20a. At least one, and more preferably at least two fastening connector portions 20a may optionally be provided at or adjacent the first end region 48a. At least one, and more preferably at least two fastening connector portions 20a may optionally be provided at or adjacent the second end region 50a. The fastening connector portions 20a may also be spaced apart along the depth 28a and/or width 26a of the module 10a.

The term "adjacent to" in relation to the in-use upper or lower end region upper end region of the access region" is intended to include the following interpretations. The fastening connector portion 20a may be part of the access region 18a but spaced-apart along the longitudinal axis 44a from an end surface of the access region 18a.

Alternatively, the fastening connector portion 20a is adjacent to a first or second end region of the access region 18a by being part of the wall-portion 30a rather than the access region 18a per se. When part of the wall-portion 30a, the fastening connector portion 20a may be either at an end surface of the wall-portion 30a or spaced-apart therefrom along the longitudinal axis 44a.

The platfon-n or platform element 54a forms a walkway in or on the access region 18a. Optionally, the platform element 54a may comprise a platform aperture and a hatch or movable closure element, hatch or panel for closing the platform aperture. This may be, for example to enable a user move through the aperture to access or come off a vertical ladder, before obstructing the platform aperture with the movable closure. The movable closure may be hingeably movable and/or slidably movable. Obstructing the platform aperture may reduce the risk of falling through the platform aperture. Additionally, the surface area of the platform 54a may be increased. The platform 54a may optionally comprise metal, such as steel. Additionally or alternatively, the platform 54a may comprise concrete. Any alternative or additional materials may be envisioned however, such as wood.

The, each or at least one platform element 54a may extend inwardly from the or each access region 18a of the base module 10a so that the channel inlet 32a of the base 10 module 10a may be narrower than the width 26a of the chute body of the base module 10a. This is the case here.

The lintel element or lintel 56a may prevent or inhibit wall-portions of the chute wall from accidentally moving apart. The lintel 56a may be referred to as a connecting or linking portion as it connects or links the wall-portions 30a. Additionally or alternatively, the lintel 56a may provide protection against falling debris to a user. The lintel may be connected or integrally formed with the platform elements, but separate may be an option. It may easily be considered that the lintel element may be part of the chute body in an alternative embodiment.

The, each or at least one fastening connector portion 20a is preferably accessible via 20 the access region 18a. This beneficially enables a user to access the fastening connector portion 20a when they are within the access region 18a.

The, each or at least one fastening connector portion 20a may take on any shape or form that enables two chute modules to be connected or engaged together when positioned one on top of the other. A pair of engageable fastening connector portions 20a may be considered to form a fastening connector. Optionally, a fastening connector portion 20a may enable the base module 10a to engage with the ground surface 14. In the preferred embodiment, the, each or at least one fastening connector portion 20a includes at least one flange or tie plate 58a.

The flange 58a preferably has at least one through-bore for receiving a bolt or a screw 30 therein. The bolt or bolts used may optionally be M 14 x 200mm thunderbolts. The flange 58a additionally extends at least in part, and more preferably fully in a transverse plane.

Referring now to Figures 5 and 6, there is shown a second embodiment of a debris chute module lob. The module 10b of the second embodiment, or second module 10b, for clarity, is in-use receivable, directly or indirectly, on the base module 10a. The second module 10b thereby elongates the chute assembly 12 and thus may also be referred to as a chute-elongation module, a second debris chute module, or a second chute module. For clarity.

Features of the chute-elongation module 10b that are similar or identical to features of the base module 10a have similar reference numerals, with the suffix "b" replacing the suffix "a".

The chute-elongation module 10b is similar to the base module 10a, having the same or a similar chute body 16b, one or more access regions 18b, and at least one fastening connector portion 20b, although any of the above features may be omitted and/or a plurality of any of the above features may be provided. Detailed description of the common features and the caveats is omitted for brevity.

Although the chute-elongation module may be identical to the base module, preferably the chute-elongation module 10b and the base module 10a are non-identical to one another. Differences between the chute-elongation module 10b and the base module 10a are described hereinafter.

In the preferred embodiment, the base module 10a and chute-elongation module 10b each have four fastening connector portions 20a, 20b, but any number may be envisioned for either module, including none, one, two, three or at least five. The or each fastening connector portion 20b preferably includes at least one, and as shown four flanges 58a, 58b. At least one such flange 58a, 58b is preferably provided at or adjacent at least one and preferably each corner of the module 10a,10b, as shown in Figure 6.

The or each flange 58a, 58b of the or each fastening connector portions 20a,20b of the base module 10a and/or the chute-elongation module 10b comprises two through-bores but any alternative number of through-bores may be envisioned, including none, one, three or at least four through-bores.

Whilst the base module 10a preferably has two spaced-apart parallel side wall-portions 30 30a, a back opening 38a and a chute exit 40a opposite the back opening 38a and is devoid of a front wall-portion and back wall-portion; the chute-elongation module 10b preferably has at least three wall-portions 30b: at least one front wall-portion 30b and at least two side wall-portions 30b.

The at least three wall-portions 30b of the heavy-duty chute wall 22b of the chute-elongation module may be arranged to form or substantially form a polygon or part thereof in transverse cross-section. More preferably, the three wall-portions 30b are arranged at right angles to each other. Thus, they may form part of a square or a rectangle. More preferably yet, the at least three wall-portions 30b may form a U-shaped chute channel portion 36b. The U-shape is best illustrated in Figure 6. Two adjacent wall-portions 30b may meet or join at a junction or edge. Preferably, the adjacent wall-portions 30b are integrally formed but non-integrally formed, such as connectable or connected, optionally separably connectable, may be options. Preferably, the chute-elongation module 10b has no chute exit but it is understood that the chute-elongation module 10b comprises a channel outlet 34b. The chute-elongation module 10b also preferably has no lintel, but this feature may be provided in an alternative embodiment. The wall-portions do preferably not have wall-sub-portions in the chute-elongation module 10b although this may be envisioned. Instead, the whole opposing wall-portions are preferably parallel or substantially parallel to each other.

Furthermore, the base module 10a is preferably wider than the, each or at least one said chute-elongation module 10b, but the base module being narrower or of similar width 20 may be alternative options.

Preferably, the width of the chute body of the chute-elongation module 10b is at least 0.5 metre, but less than 0.5 metre may be an option. More preferably, the width is at least 1 metre, and even more preferably at least 2 metres. In the shown embodiment, the width of the chute body of the chute-elongation module 10b is 2.5 metres.

Thus, one or more of the dimensions of the channel inlet 32a of the base module 10a may optionally match one or more of the dimensions of the channel outlet 34b of the chute-elongation module 10b.

Furthermore, the chute channel portion 36h of the base module 10a is at least as wide and is preferably wider than the chute channel portion 36b of the, each or at least one chute-elongation module 10b, but once again, this is optional. Preferably, the access region 18a of the base module 10a is positioned outwardly of the or a said access region 18b of the, each or at least one chute-elongation module 10b relative to the chute channel portions 36a,36b. Thus, the total width of the base module 10a may be at least 5 metres, although less than 5 metres may be an option. More preferably, the total width of the base module 10b may be at least 6 metres and even more preferably at least 7 metres. In the shown embodiment, the total width of the base module 10b is 7.42 metres.

In comparison, the total width of the chute-elongation module 10b may be at least 2 metres, although less than 2 metres may be an option. More preferably, the total width of the chute-elongation module 10b may be at least 3 metres and even more preferably at least 4 metres. In the shown embodiment, the total width of the chute-elongation module 10b is 4.7 metres.

The chute-elongation module 10b further includes a climbing structure 60b but this feature may be omitted or a plurality may be provided. Although not shown, the base module 10a is preferably also provided with one or more of the same or a similar climbing structure, but a climbing structure may easily be omitted from the base module.

The climbing structure 60b in-use enable a user to ascend and/or descend the module 10b, preferably within the or a said access region 18b. The climbing structure 60b may alternative be referred to as a climbing frame, ascension element, part or portion. A climbing structure 60b is preferably associated with each access region 18a, however it may easily be envisioned that at least one or any of the access regions may have no climbing structure 60b. In the preferred embodiment, the climbing structure 60b includes at least one ladder or ladder-like element. Optionally, the climbing structure 60b may further include a ladder cage, not shown.

The ladder includes a plurality of ladder rungs. The plurality of ladder rungs preferably extends at least in part in the access region 18b. Preferably, the ladder rungs are connected to the chute wall 22b and/or to the or a said access region 18b. Optionally, the ladder rungs may be integrally formed with the chute wall 22b or a wall-portion 30b thereof and/or the access region 18b. Thus, the ladder may be immobile or non-movable relative to any or any combination of: the module 10a, the or at least one said wall-portion 30a, and the or at least one said access region 18b.

The ladder rungs may be connected to a ladder frame but preferably, as shown, each 30 ladder rung extends directly from the chute wall 22b and/or access region 18b. Each ladder rung may thus be considered to be a floating rung. Furthermore, the ladder rungs overlie each other exactly. The ladder rungs are vertically aligned with one another. This provides a solely vertical ladder in use. In other words, the ladder formed by the plurality of ladder rungs is vertical in use. The ladder extends solely in a longitudinal direction, but this is optional.

For example, in an alternative embodiment, it may be envisioned that the ladder may be 5 free standing, tilted or tiltable. In other words, the ladder may extend only at least in part in a longitudinal direction. The ladder may additionally extend at least in part in a transverse direction. The ladder may be separable and/or movable.

Optionally, if any of the base module or chute-elongation module or any part thereof is formed of stackable sub-modules, these sub-modules may themselves be connected or connectable to each other by similar fastening connector portions. Thus, any of the modules may additionally have one or more intermediate fastening connector portions. For instance, the chute body and/or the access region of the base module and/or of the chute-elongation module may be formed of a plurality of sub-modules.

Referring now to Figure 7, there is shown a front view of the chute assembly 12 having three modules; it will be appreciated, however, that a chute assembly can be constructed from at least two modules, up to a desired height. Figure 8 shows the same chute assembly 12 viewed from the left side. Thus, the chute assembly 12 may be referred to as a modular chute assembly. Optionally, the chute assembly 12 may further comprise a foundation or base, also referred to as a main deck or main deck section, but this foundation is entirely optional. The chute assembly 12 or any part thereof may comprise wood, metal, plastics, carbon fibre, glass fibre, concrete, cement, any other suitable material, a plurality of any of the above. More preferably, the chute assembly 12 or any part thereof includes structural steel, and more preferably stainless steel, but any alternative metal, metals or metal alloy may be envisioned.

There may be a plurality of base modules 10a and/or a plurality of chute-elongation modules 10b. In the embodiment shown in Figures 7 and 8, there are two chute-elongation modules 10b received on top of a base module 10a. A first of the chute-elongation modules 10b is engageable on the base module 10a and a second of the chute-elongation modules 10b is engageable with the first said chute-elongation module 10b. The second of the chute-elongation modules 10b may thus be considered to be an end chute-elongation module. The first of the chute-elongation modules may be considered to be an intermediate chute-elongation module. The chute channel portions of the or each base module 10a and the or each chute-elongation module 10b form the continuous chute channel 42 when stackably interengaged with one another.

In-use, in order to carry out construction or demolition work, such as internal stripping of a building, and more preferably a multi-storey building, the user or user may need to 5 construct a debris chute first.

Preparation on site is preferably at least started, if not finished by the time the materials to build the debris chute arrive on site. Preparation may include agreeing on the location of the chute assembly 12.

To construct the debris chute, the user may obtain at least one module 10a and more preferably a plurality of modules so as to be able to form a chute assembly 12. The at least one module is transported on site, preferably in one or more rigid lorries. A, notionally first, lorry may transport the, each or at least one base module 10a to the site. The same lorry and/or a further lorry may transport one or more chute-elongation modules 10b to the site at any point.

If not integrally formed or formed of non-separably connected parts, the, each or at least one base module 10a and/or the, each or at least one chute-elongation module 10b may need to be assembled prior to use, for instance if a module is provided as a kit of parts and/or is formed of sub-modules. Preferably however, the base module 10a is integrally formed.

If provided, the main deck section is preferably also transported to the site, but formed in situ may be an option. Preferably, the main deck section arrives in a fully assembled condition. This may facilitate installation and/or increase speed, but a partly assembled condition or a disassembled condition may be options, such as for ease of transport.

Once assembled, the base module 10a is positioned at or adjacent to a base of the building. Optionally, the base module may be provided against a wall of the building devoid of any openings. Preferably however, the base module 10a is positioned adjacent to a wall of the building having at least one window or aperture. More preferably, the base module 10a and/or the central, longitudinal axis thereof overlaps or aligns with one or more windows or apertures of the building.

If a main deck section is provided, the base module 10a is engaged with the main deck section, for example by being bolted thereto. If the main deck section is not in situ on the site, the main deck section may be moved to the desired location at or adjacent a base of the building, before or after the base module 10a and the main deck are engaged together. The main deck section and/or base module 10a may be moved via a crane by way of example.

Preferably, the user checks whether the base module 10a and/or the main deck section are level or horizontal. If not horizontal, the base module 10a and/or the main deck section are levelled as much as possible. The base module 10a being level is important as modules are stacked onto the base module 10a and preferably engaged therewith. Any misalignment of the base module 10a would result in instability of the chute assembly 12.

Preferably, the base module 10a and/or main deck section are fixed to the building, but non-fixed, such as free-standing may be an option. For instance, the building may not have sufficient structural integrity to allow engagement between the chute assembly 12 and the building.

The base module 10a preferably includes a climbing structure. The climbing structure is preferably in the form of a vertical ladder optionally with ladder cage. This will enable to the user to climb up onto the platform 54a of the base module 10a. The user will then be ready and in position for the or a said chute elongation module 10b.

As previously mentioned, the same lorry and/or a further lorry may transport one or more chute-elongation modules 10b to the site at any point. Preferably, the chute-elongation modules preferably arrive on site in a disassembled condition for ease of transport. However, a partly assembled condition, a fully assembled condition or integrally formed may be alternatives.

Once on site, the, each or at least one chute-elongation module 10b is assembled. This may involve engaging together, for example via bolting, all or any combination of: the chute body 16b; the, each or at least one access region 18b; the, each or at least one exoskeleton; the climbing structure 60b. VVhilst two chute-elongation modules 10b are shown in Figures 7 and 8, any number of chute-elongation modules may be provided, such as none, one, two, three, four or at least five. A lorry may, for example, be able to transport four such chute-elongation modules 10b.

Each chute-elongation module 10b is preferably assembled on the ground before being lifted into position. More preferably, once the base module 10a is in position, the or a said chute-elongation module 10b is hoisted or lifted onto the base module 10a. If either or both the base module 10a and chute-elongation module 10b has a back opening 38a, 38b, the back opening 38a, 38b is preferably positioned at or adjacent to a wall of the building, so as to be obstructed or substantially obstructed by the building along at least some of the height of the chute assembly 12 and/or a module thereof. In other words, the chute channel 42 is bounded on one side or surface by the building.

The base module 10a and the chute-elongation module 10b are interconnected together via the respective fastening connector portions 20a,20b to thereby form the continuous chute channel 42. As the fastening connector portions 20a are preferably accessible from within the access region 18a of the chute-elongation module 10b and/or the base module 10a, the user can move within the access region 18a of the base module 10a, or optionally of the chute-elongation module 10b, to connect the fastening connector portions. In the preferred embodiment, the or each fastening connector portion 20a, 20b includes one or more flanges 58a, 58a. Modules are connected together via the flanges 58a,58b. More preferably, the in-use lower fastening connector portions 20a, 20b is bolted into the module below, whether directly to the platform thereof if provided, and/or to a fastening connector portion of module below.

Depending on the height of the level of the building being stripped, one or more further chute-elongation modules 10b may be required. The or each further chute-elongation 20 module 10b is hoisted onto the chute-elongation module 10b of the chute assembly 12.

Once the base module 10a and the chute-elongation module 10b are engaged, the user climbs up the vertical ladder, through the hatch and on to the platform of the chute-elongation module 10b, ready for the next module to be lifted into position. Once the further chute-elongation module 10b is lifted into position onto the chute-elongation module 10b, the user will engage the two chute-elongation modules 10b. Once again, the engagement is preferably by bolting the-elongation module 10b above them on to the chute-elongation module 10b the user is located in or on. The ease of assembly reduces labour costs and time taken to build the chute assembly 12 on site.

The or each further chute-elongation module 10b is connected to the chute-elongation module 10b immediately below via the, each or at least one fastening connector portion 20b. Similarly, the user can access the fastening connector portions 20b via the access region 18b of either chute-elongation module 10b being interconnected. As the or each chute-elongation module 10b preferably includes a ladder, the user may simply climb up or down the ladder. If a platform or platform element 54a, 54b is provided for the base module 10a and/or the chute-elongation module 10b, the user can walk, rest and/or place tools thereupon.

The, preferably integrally-formed, access regions 18a, 18b and more preferably the ladder within if provided, negate the need for a user to be lifted by a separate user-lifting 5 device or abseiling down the building to access the fastening connector portions. In turn, assembly is easier, faster, safer and does not require staff specially trained to abseil.

Once the chute assembly 12 is assembled to the desired height, the chute assembly 12 may be used to easily and safely remove debris 46 from an upper level of the building. The user inserts debris 46 into the channel inlet 32b and/or the back opening 38b. Debris may be inserted into the chute assembly 12 by hand and/or using a machine, such as a skidsteer or digger. A machine may facilitate moving large and/or heavy items, or aggregate matter. As the base module 10a is preferably positioned so that it overlaps or aligns with one or more windows or apertures of the building, a user is able to insert debris via the window or aperture into the chute assembly 12 from a plurality of levels of the building. The movement of the debris 46 within the chute assembly 12 is indicated by arrows B in Figures 7 and 8. Optionally, the back opening 38b and the channel inlet 32b of a module 10b may be one and the same. The debris 46 fall within the channel 42 to or towards the ground surface 14. In the preferred embodiment, the fall of the debris 46 is arrested by the ground surface 14 below the base module 10a. As the width of the base module 10a is preferably greater than the width of the, each or at least one chute-elongation module 10b, the risk of the wall-portions 30a of the base module 10a being damaged or moved by debris 46 crashing upon and/or piling on the ground surface 14 is reduced. If provided, the lintel 56a may have a structural function of holding the base wall-portions 30a in a fixed spaced-apart arrangement whereby the opposing wall-portions 30a of the base module 10a are prevented or inhibited from moving towards or away from each other. The lintel 56a may have a secondary, protective function, whereby the lintel 56a prevents or inhibits debris from falling onto an adjacent user. The or a further user can remove debris from the chute assembly 12 via the chute exit 40a. Depending on the dimensions of the chute exit 40a, the user and/or a debris-removal machine may even be able to partially or fully enter into the channel 42 via the chute exit 40a.

VVhen the level of the building has been at least partly demolished or stripped, the chute assembly 12 in an assembled condition needs to be at least partly deconstructed or disassembled. The user disconnects the two or, if the chute assembly 12 has more than two modules, the two uppermost modules of the modular chute assembly 12. The two modules may both be chute-elongation modules 10b, or a chute-elongation module 10b and a base module 10a. To disconnect the modules, the user moves within the access 5 region until they can access the fastening connector portions 20a, 20b from within the access region. In the preferred embodiment, the user moves within the access region 18b by climbing up or down the ladder if provided. The user disengages the fastening connector portions 20a of respective modules. The or the uppermost chute-elongation module 10b is lifted off the module below and lowered to the ground surface 14. 10 Optionally, if not integrally formed or formed of non-separably connected parts, the chute-elongation module 10b may be disassembled.

If required, the user repeats the fastening connector disengagement and module removal steps as many times as needed. This may be once, or a plurality of times.

If a lower level of the building needs to be demolished or stripped, the user may carry out the fastening connector disengagement and module removal steps once or as many times as required until the channel inlet 32a, 32b and/or back opening 38a, 38b of the in-use highest module 10a, 10b is at a desirable level, such as a level where the user can insert debris into the channel 42 from the level of the building that needs to be demolished or stripped.

Once the lower level of the building has been demolished or stripped, deconstruction of the chute assembly 12 can resume until a further lower level of building needs to be demolished or stripped and/or until the chute assembly 12 is fully deconstructed.

Referring now to Figures 9 to 12, there is shown parts of a third embodiment of debris chute module 10c for a chute assembly 12. For clarity, the third embodiment of the debris 25 chute module 10c may be referred to as a third debris chute module 10c.

The third debris chute module 10c is similar to the second debris chute module 10b. The third debris chute module 10c may thus be considered to be a chute-elongation module.

Features of the third debris chute module 10c that are similar or identical to features of the first debris chute module 10a and/or the second debris chute module 10b have 30 similar reference numerals, with the suffix "c" replacing the suffix "a" or "b".

The third debris chute module 10c is similar to the second debris chute module 10b, having the same or a similar chute body 16c, one or more access regions 18c, and at least one fastening connector portion 20c, although any of the above features may be omitted and/or a plurality of any of the above features may be provided. Detailed description of the common features and the caveats is omitted for brevity. The differences are described hereinafter, although any of these differences may be omitted.

Preferably, any or all of the wall-portions 30c of the chute body 16c may comprise an outer skin or layer 62c, and an inner skin or layer 63c. Part of the outer skin 62c is illustrated in Figure 9 as a dashed area. Part of the inner skin 63c, is also illustrated in Figure 9 as a dotted area. The outer skin 62c and/or the inner skin 63c may comprise metal, and more preferably steel. Each of the outer skin 62c and/or the inner skin 63c may be formed as a sheet. The outer skin 62c and/or the inner skin 63c preferably include a sheet having a thickness of at least 0.5 mm, although less than 0.5 mm may be an option. More preferably, the outer skin 62c and/or the inner skin 63c comprises thickness of at least 1.0 mm. The outer skin 62c has a thickness of 1.5 mm. The inner skin 63c preferably has a thickness of at least 2 mm and most preferably has a thickness of 2.5 mm. The skins may be directly or indirectly connected to each other. The skins may be spaced apart from or in contact with each other.

Preferably, a framework 64c may be provided to support one or both skins. Preferably, the framework 64c is positioned between the skins, as shown in Figure 9. The framework 64c has a plurality of elongate support members 66c. One or more the elongate support members 66c may be hollow. One or more elongate support members 66c may be a channel and/or may include a recess. Optionally, one or more elongate support members 66c may comprise at least one through-bore, hole or aperture 68c. The through-bore may enable the outer skin 62c and/or the inner skin to be connected to the framework 64c, for example via a screw, bolt or other fastener. Additionally or alternatively, the framework 64c may enable or facilitate the engagement between the or a said access region 18c and the chute body 16. For example, the at least one, and here twelves through-bores 68c enable the framework 64c to engage with two access regions 18c. In Figure 10, two bolts are illustrated which are engageable with two of the twelves through-bores 68c. Optionally, the one or more elongate support members 66c having through-bores may be formed as channels. The channel elongate support members 66c may be at least 65 mm deep by at least 125 mm wide. At least one M18 Nut and bolt may be at least partly receivable within the channel. A channel elongate support members 66c may be spaced apart from a further said channel elongate support members 66c by at least 1063 mm but less than 1063 may be an option Optionally, insulation, such as foam, may be provided. The insulation may be provided between the inner skin 63c and the outer skin 62c. Insulation may reduce or dampen 5 vibrations in the chute body, which in turn may reduce the fatigue of the welds. Furthermore, insulation may reduce the noise of the debris travelling through the chute.

Figure 10 shows a plan view of an access region 18c, a connector portion 20c and part of one of the elongate support members 66c of the framework 64c. In the preferred embodiment, a fastening connector portion 20c is provided at or adjacent at least one, and more preferably each of the corners of the access region 18c as shown. Each fastening connector portion 20c preferably comprises at least one, and preferably four flanges 58c. The or each flange 58c preferably has two through-bores but any number may be envisioned, including none, one, or at least three for any or all the flanges 58c. Optionally, the, each or at least one fastening connector portion 20c is integrally formed or connected to the access region 18c but separably connectable may be an option. Preferably, the or each fastening connector portion 20c is welded to the access region 18c. The, each or at least one fastening connector portion 20c of the third debris chute module 10c optionally also includes at least one connector frame or member 21c but this feature may be omitted. The, each or at least one flange 58c and the, each or at least one connector frame 21c are preferably integrally formed, but non integrally formed may be options, such as welded or connected by a connector. Preferably the or each connector frame 21c extends in a plane. Preferably, the, each or at least one flange 58c is co-planar with the connector frame 21c but non-coplanar may be an option. The connector frame 21c may have a shape in plan view which corresponds with or substantially corresponds with the shape of the or a said access region 18c. Optionally, the connector frame 21c associated with at least two access regions 18c of a same debris chute module may be connected or integrally formed with each other, as shown in Figure 11. This may improve structural integrity. The connector frame 21c and optionally flange 58c are preferably formed from a sheet, preferably a steel sheet, in which apertures are cut, preferably by a laser. However, any alternative method of manufacture may be envisioned, such as extrusion or moulding. Preferably, each debris module 10c comprises at least one connector frame 21c. More preferably, each debris module 10c comprises at least one connector frame 21c at or adjacent one or both of the upper and lower ends of the or each access region 18c. In Figure 11, there are two connector portions 20c, one of which has two connector frames 21c and the other has one connector frame 21c but any alternative arrangement may be envisioned. The connector frames 21c of a connector portion 20c may even be weldable, connectable, connected or welded together. The connector frames 21c of distinct connector portions 20c may be be weldable, connectable, connected or welded together. At least one and as shown a plurality of flanges 58c is preferably provided on at least one of the connector frames 21c.

Additionally, the third module 10c may further comprise a connecting portion 70c and a grip-enhancing portion, but either may be omitted and/or a plurality of either feature may 10 be provided. As shown, there are preferably two connecting portions 70c per access region 18c.

The connecting portion 70c, also referred to as a wall-connecting portion, support, or bracket is shown in Figure 10 and in Figure 12. The wall-connecting portion 70c in use enables the debris chute module 10c to be connected to the building or structure being stripped or demolished. The wall-connecting portion 70c may be associated with any of: the or a said access region 18c, an exoskeleton of the or a said access region, and the chute body 16c. The connecting portion 70c in the shown embodiment comprises a plate but any alternative shape, embodiment or configuration may be envisioned. As shown in Figure 12, the wall-connecting portion 70c includes at least one and preferably a plurality of apertures 71c through which a bolt or screw or other fastener 72c may be inserted. The bolts shown in Figures 10 and 12 preferably penetrate into the wall of the building. The wall-connecting portion 70c is preferably laser-cut.

The grip-enhancing portion, not shown, in-use increases the friction so as to reduce the risk of a user slipping when walking thereupon. The grip-enhancing portion may also be referred to as a friction-enhancer, a friction-increasing element or layer. In the preferred embodiment, the grip-enhancing portion may include any or any combination of: a mesh, grating, and a sheet with grip-enhancing protrusions. The grip-enhancing portion may be engaged with or welded to any of: the access region, the exoskeleton, a platform of the access region. More preferably, the mesh and/or sheet may comprise metal, and more preferably steel. An example of a suitable grip-enhancing portion is Expamet mesh. Any non-metal material may be envisioned instead or in addition to metal, such as plastics, elastomers, such as rubber, or wood, by way of example only.

The uses of the third debris module 10c are the same as the first debris chute module 10b and the second debris module 10b. If used in conjunction with a further debris chute module to form a chute assembly, the third debris module 10c may be usable with any or any combination of: one or more first debris module modules 10a, one or more second debris modules 10b, and one or more third debris modules 10c. Detailed description of the common method steps and the caveats is omitted for brevity.

Any of the features of third debris chute module may be provided in the first debris chute module and vice-versa. Any of the features of third debris chute module may be provided in the second debris chute module and vice-versa. Any of the features of second debris 10 chute module may be provided in the first debris chute module and vice-versa.

Whilst each chute channel portion is defined by a plurality of chute wall-portions, it may be easily envisioned that only one chute wall-portion may define the chute channel portion. To this effect, the chute wall may be at least partly curved in transverse cross-section. For example, the chute wall may be circular, ovoid or elliptical in cross-section by way of example. A circular, ovoid or elliptical shape in cross-section may provide a channel portion open at both ends but which is otherwise closed. The chute wall may be continuous. Alternatively, the chute wall may be discontinuous and curved. For example, the chute wall may have or substantially have a C-shape. A C-shape may provide a channel extending between a channel inlet and a channel outlet and which is considered to be an open channel by virtue of having a back opening.

In the preferred embodiments, each module has a flange extending in a transverse plane in-use overlying or overlapping a corresponding transversally-extending flange of an adjacent module, for receiving a screw or bolt through aligned through bores in both flanges. Any alternative arrangement may be envisioned, however.

For instance, the fastening connector portion of one module may be provided as one or more through-bores in any of: the access region, the platform element, the chute body, any part thereof. The fastening connector portion of an adjacent module may be provided as one or more through-bores in any of: the access region, the platform element, the chute body, or any part thereof, the through-bores of both modules being alignable.

Flanges may be omitted entirely from one or both modules. The chute-elongation module may be at least in part supported or supportable by the or a platform element of the module immediately below. The through bores of the chute-elongation module, optionally provided in a flange, may be alignable with the bores in the platform element. A bolt or screw may be received therethrough.

In a further modification, a said flange may extend at least partly in a longitudinal direction. The flange may extend beyond the end region of the module and overlap at 5 least in part the adjacent module when the modules are stacked. The adjacent module may be devoid of a corresponding flange. For example, the adjacent module may comprise one or more through bores extending in a transverse plane. The through bores may be provided in the chute wall and/or in the access region. Any alternative fastening connector portions may be envisioned, such as male and female engagement portions, 10 bayonet engagement portions, screw-threaded engagement portions, interference fit, or any other suitable connector, by way of example.

The first, second and third modules preferably comprise an integrally formed ladder, although non-integrally formed may be an alternative for any of the modules. For example, the user may optionally need to provide a separate, movable ladder or other climbing frame. The advantage of the movable climbing means is that it can be removed, for example when not in use. This may be beneficial to prevent or inhibit members of the public from attempting to climb the chute assembly. Additionally, or alternatively, the user may be hoisted by a separate user-lifting device onto or partway up the base module, for example, onto the or a said platform element of the base module and/or of a chute-elongation module.

Whilst the climbing structure is preferably a ladder, any alternative may be envisioned, including at least one of: a flight of steps, a hoist mechanism, and a lift or elevator.

It may easily be envisioned that the chute body may further comprise a closure element. The closure element may be a door, panel or removable wall portion, by way of example. 25 The closure element may be used to close any or any combination of: the back opening, the chute exit, the channel inlet, or the channel outlet.

It may easily be envisioned that the chute body may further comprise a closure element. The closure element may be a door, panel or removable wall portion, by way of example. The closure element may be used to close any or any combination of: the back opening, the chute exit, the channel inlet, or the channel outlet. The ability to selectably open and obstruct the chute exit may enable the base module and a said chute-elongation module to be interchangeable. Additionally, the back opening may be used as a chute exit if a chute-elongation module is used as a base module and the back opening is rotated away from the building.

In any of the embodiment, there may be a top piece and/or a bottom piece, for connecting two modules together. The top piece and/or bottom piece may optionally be formed at least in part of steel.

Any of the features and caveats that apply to one of the embodiments may easily be provided or applicable to any of the other embodiments.

An indicative module in any of the embodiments may be at least 2500 mm tall by at least 4900 mm wide by at least 2200 mm deep, The access region of a module may be at least 1000 mm wide. The access region may optionally be formed of one or more sub-modules along any or any combination of: the depth, height and width. A sub-module may be at least 550 mm, and more preferably at least 1040 in any of width, height and/or depth. A bottom rung of a ladder may be spaced apart above a platform by at least 550mm. The chute body of a module may be at least 2500 mm wide. The internal dimensions of the chute may be 2500 mm wide by 2200 mm. The module may comprise elongate members which may be at least 60 mm by at least 40 mm, and more preferably 60 mm by 60 mm in cross-section. Elongate members may be at least 550 mm long, and more preferably at least 1040 mm long. The elongate members may be formed of 3 mm metal, such as steel. A fastening connector portion for connecting modules together may comprise a plate, preferably a steel plate, which may be laser cut. The or each fastening connector portion may be at least 8 mm thick. A fastening connector portion may be at least 2268 mm deep, and at least 2000 mm wide. If provided, a connector frame of the connector portion may be at least 900 mm wide, and more preferably at least 1200 mm wide. If any wall-connecting portion is provided, the wall-connecting portion may be a plate, preferably a laser cut plate with predrilled apertures. The wall-connecting portion may be at least 6 mm thick by at least 2380 mm long by at least 250 mm wide. At least one, and more preferably at least four bolts may be used to fix the wall-connecting portion to a wall of a building. Whilst the above dimensions are preferred dimensions, any of the dimensions may be less than the above-stated value.

Whilst a preferred shape may have been specified for any of the above-described features, any alternative shape may be envisioned in any of transverse or lateral cross-section, longitudinal cross-section, in side view, or in plan view. The shape may be any or any combination of: curved, part curved, non-curved, linear, part linear, non-linear, a broken line, any polygon, whether regular or irregular, having one or more chamfered and/or rounded corners, a triangle, a quadrilateral, such as a square, a rectangle, a trapezium, a trapezoid, a pentagon, a hexagon, a heptagon, an octagon, or any other polygon, a cross, an ellipse, a circle, part circular, an oval, or any abstract shape.

It is therefore possible to provide a debris chute module which is easy to ascend and descend by virtue of having an access region. This removes the need to use a user-lifting device or to train users to abseil, and provides increased protection against falling debris. The debris chute module is easily connectable with another debris chute module by virtue of having a fastening connector portion accessible from the access region.

It is also possible to provide a modular chute assembly, the height of which is adjustable by virtue of having at least two debris chute modules, to accommodate buildings of different heights. The chute assembly is also self-supporting.

It is also possible to provide methods of constructing and deconstructing respectively a debris chute for demolition or internal stripping of a multi-storey building. The speed and ease of construction and deconstruction are increased as a user can ascend and descend the access region to engage and disengage the fastening connector portions, without requiring abseiling or a separate user-lifting device.

The words 'comprises/comprising' and the words 'having/including' when used herein with reference to the present invention are used to specify the presence of stated 20 features, integers, steps or components, but do not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.

It is appreciated that certain features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the invention which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable sub-combination.

The embodiments described above are provided by way of examples only, and various other modifications will be apparent to persons skilled in the field without departing from the scope of the invention as defined herein.

Claims

Claims 1. A debris chute module comprising: a chute body including a heavy-duty chute wall defining a chute channel portion for channelling debris within the chute body; an access region connected to the heavy-duty chute wall; and at least one fastening connector portion provided at or adjacent to an in-use upper end region of the access region and/or an in-use lower end region of the access region for engaging the debris chute module with a further said debris chute module, the at least one fastening connector portion being accessible via the access region.
2 A debris chute module as claimed in claim 1, wherein the at least one fastening connector portion includes a flange having a through-bore for receiving a bolt or a screw therein.
3 A debris chute module as claimed in claim 1 or claim 2, wherein a said fastening connector portion is provided at or adjacent to both the in-use upper end region of the access region and the in-use lower end region of the access region.
4. A debris chute module as claimed in any one of the preceding claims, wherein the access region comprises a platform element forming a walkway.
A debris chute module as claimed in any one of the preceding claims, further comprising a ladder including a plurality of ladder rungs provided at least in part in the access region.
6. A debris chute module as claimed in claim 5, wherein the ladder rungs are connected to the chute wall and/or to the access region.
7. A debris chute module as claimed in claim 6, wherein the ladder rungs are integrally formed with the chute wall and/or the access region.
8. A debris chute module as claimed in any one of claims 5 to 7, wherein the ladder rungs are vertically aligned with one another.
9. A debris chute module as claimed in any one of the preceding claims, wherein the access region and/or the chute body are formed from steel.
10. A debris chute module as claimed in any one of the preceding claims, wherein the heavy-duty chute wall is discontinuous such that the chute channel portion is unbounded on at least one side of the debris chute module.
11. A debris chute module as claimed in claim 10, wherein the heavy-duty chute wall is arranged to form or substantially form a C-shaped or U-shaped chute channel portion
12. A debris chute module as claimed in any one of the preceding claims, wherein the access region includes a plurality of interconnected elongate members.
13. A debris chute module as claimed in any one of the preceding claims, wherein two said access regions are provided respectively on either side of the chute body.
14. A debris chute module as claimed in claim 13, wherein a said fastening connector portion is provided at or adjacent to an in-use upper end region and/or an in-use lower end region of each of the two access regions.
15. A modular chute assembly comprising a first debris chute module, the first debris chute module being a base module, and at least one second debris chute module, the or each second debris chute module being a chute-elongation module engageable on the base module and/or a further chute-elongation module, at least one of the first and second debris chute modules being a debris chute module as claimed in any one of the preceding claims, the chute channel portions of the first debris chute module and the or each second debris chute module forming a continuous chute channel when stackably interengaged with one another.
16. A modular chute assembly as claimed in claim 15, wherein the first debris chute module comprises a chute exit in or instead of a front wall-portion of the heavy-duty chute wall.
17. A modular chute assembly as claimed in claim 15 or claim 16, wherein the first debris chute module is wider than the or each second debris chute module.
18.A modular chute assembly as claimed in claim 17, wherein the chute channel portion of the first debris chute module is wider than the chute channel portion of the or each second debris chute module.
19. A modular chute assembly as claimed in any one of clams 15 to 18, wherein the access region of the first debris chute module is positioned outwardly of the access region of the or each second debris chute module relative to the chute channel.
20. A modular chute assembly as claimed in any one of claims 15 to 19, wherein the access region of the base module further comprises a lintel element.
21. A modular chute assembly as claimed in claim 15, wherein the base module and the chute-elongation module are identical to each other.
22. A method of constructing a debris chute for demolition or internal stripping of a multi-storey building, the method comprising the steps of: a] providing a modular chute assembly as claimed in any one of claims 15 to 21; b] positioning the first debris chute module at or adjacent to a base of the building; and c] hoisting a second debris chute module onto the first debris chute module and interconnecting the first and second debris chute modules together via the respective fastening connector portions from within the access region of the first or second debris chute module to thereby form a continuous chute channel.
23. A method as claimed in claim 22, further comprising a step d] of hoisting a further second debris chute module onto the said second scaffold module and interconnecting the said and further said second debris chute modules together via the respective fastening connector portions from within the access region of the said and/or further said second debris chute module.
24. A method as claimed in claim 22 or claim 23, wherein the continuous chute channel is bounded on one side along at least part of a height of the modular chute assembly by the multi-storey building.
25. A method of deconstructing a debris chute for demolition or internal stripping of a multi-storey building, the method comprising the steps of: a] providing a modular chute assembly as claimed in any one of claims 15 to 21 in an assembled condition; b] disconnecting the two or the two uppermost debris chute modules of the modular chute assembly by disengaging the fastening connector portions of respective debris chute modules from within the access region; c] lifting the or the uppermost second debris chute module off the debris chute module below and lowering the or the uppermost second debris chute module to a ground surface; d] optionally, repeating steps b] and c] as required.