NZ764598A - Improvements relating to void platforms - Google Patents
Improvements relating to void platforms Download PDFInfo
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- NZ764598A NZ764598A NZ764598A NZ76459820A NZ764598A NZ 764598 A NZ764598 A NZ 764598A NZ 764598 A NZ764598 A NZ 764598A NZ 76459820 A NZ76459820 A NZ 76459820A NZ 764598 A NZ764598 A NZ 764598A
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- Prior art keywords
- panel
- deck component
- ladder
- support member
- relative
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Abstract
A panel is disclosed which is suitable for installation to form a platform or part of a platform in a void of a building structure. The panel is operable to extend between a first support member and a second support member both of which extend across at least a portion of the void. The panel has: a deck component with: a first end and a second end opposite the first end; a pair of opposed, substantially straight sides each extending from the first end to the second end; and a substantially planar surface portion which extends: between the opposed sides at the first end, and from the first end at least part of the way, but not necessarily all the way, to the second end; and one or more first engaging formations at the first end of the deck component and operable to engage with the first support member to support the deck component relative to the first support member, and one or more second engaging formations at the second end of the deck component and operable to engage with the second support member to support the deck component relative to the second support member. At least one out of the first and second engaging formation(s) is/are configured to support the relevant end of the deck component relative to the relevant support member from approximately directly vertically beneath, and/or from approximately within vertical planes containing, each of the straight sides of the deck component. deck component with: a first end and a second end opposite the first end; a pair of opposed, substantially straight sides each extending from the first end to the second end; and a substantially planar surface portion which extends: between the opposed sides at the first end, and from the first end at least part of the way, but not necessarily all the way, to the second end; and one or more first engaging formations at the first end of the deck component and operable to engage with the first support member to support the deck component relative to the first support member, and one or more second engaging formations at the second end of the deck component and operable to engage with the second support member to support the deck component relative to the second support member. At least one out of the first and second engaging formation(s) is/are configured to support the relevant end of the deck component relative to the relevant support member from approximately directly vertically beneath, and/or from approximately within vertical planes containing, each of the straight sides of the deck component.
Description
IMPROVEMENTS RELATING TO VOID PLATFORMS
TECHNICAL FIELD
The present invention relates to panels which can be used to construct temporary
and removable platforms spanning voids in buildings. In other words, the invention relates to
panels that can be used to construct these temporary and removable “void platforms”. Such void
platforms are often used, for example, to provide safe access for builders and other tradespeople
to elevated areas within and around a void in a building during construction or renovation of the
building.
Whilst the invention may find use in the construction of such temporary void
platforms and will therefore be explained mainly in the context of this application, it is to be clearly
understood that the invention is not necessarily limited to use only for this purpose or only in this
application. The invention may therefore also find use in other areas of construction, or even in
other non-construction related fields.
BACKGROUND
A void in a building is an open space within the building which typically has a height
extending for more than one floor or level of the building. Voids may be created in buildings, for
example, to accommodate stairwells or elevators, to create atriums or other open (high) spaces
within buildings, etc. Because voids (or void spaces) in buildings typically extend vertically for
more than one floor or level of the building, whenever builders or other tradespeople require
access in order to work at height in elevated areas within and/or around the void, e.g. during
construction or renovation of the building, safety measures must be taken to protect them from
height-related dangers (e.g. to protect against falls from height into the void space and onto the
floor below, to prevent hazards associated with objects that might fall through the open void
space from height endangering persons working below, etc).
Some safety systems that are sometimes used around voids are hand rails and other
like forms of simple “edge protection”. However, these have a number of shortcomings. For
instance, they generally do not prevent a builder or tradesperson from falling into the void, for
example, if the person overbalances and falls over the handrail. Further, these kinds of simple
edge protection do not provide workers with access to elevated areas of the building structure
from within the void space. This is a significant limitation because often work has to be done in
these areas. For example, plasterboard or other wall cladding is often applied to the full height
of the wall surfaces that define edges of the void space. Further, once plasterboard or other wall
cladding or surface sheeting is applied to the full height of such walls of a void, this typically
needs to be plastered or otherwise finished, and painted, and these things often cannot be done
unless workers have access to the walls from an elevated position within the void. Yet further,
services, e.g. electrical and mechanical services, often need to be installed on walls and ceilings
around or above or within the void.
Australian Patent Application No. 2017202444 (“the 444 application”), the contents
of which are incorporated herein by reference, discloses, among other things, support struts that
can be installed across (i.e. to span) a void in a building. The 444 application also discloses
panels which can be placed onto those support struts to provide an elevated platform or surface
across the void (i.e. a void platform) on which builders and other tradespeople may walk, move
around, work, etc. Whilst the contents of the 444 application are incorporated herein by
reference, the present invention relates to panels which may improve upon those panels
disclosed in the 444 application and also upon other panels that have previously been used in
the construction of void platforms.
Referring to Figures 1 and 2 below, the illustrations in these figures are identical to
the illustrations that form Figures 4 and 6 in the 444 application. The following passages (shown
in italics), which describe these illustrations, are also extracted directly from the specification of
the 444 application. However, the feature reference numerals used in the following italicised
passages from the 444 application (and hence the feature reference numerals which appear on
Figures 1 and 2 in this specification) are different to the feature reference numerals used in the
444 application itself. Specifically, roman numerals are used in the italicised passages below
instead of the corresponding Arabic feature numerals used in the 444 application itself. This is
to avoid confusion with Arabic feature reference numerals used in other parts of the present
specification which are not extracted from the 444 application. Also, in the italicised passages
below from the 444 application, where a (feature or other) reference numeral appears in square
brackets, this is to indicate that this replaces the original reference numeral used in the original
text in the 444 application.
Fig. [1] shows two support struts mounted in position extending across a void of a building
structure.
The flange [XVIII] of the horizontal mounting bracket [X’] on the left is positioned
uppermost and extends across an upper surface of a stud timber forming a plate member
[XXV] of a building frame. The other horizontal mounting bracket [X’’] on the right side is
inverted with its flange [XVIII] positioned lowermost extending across a floor [XXVI]
adjacent to the void.
The horizontal mounting brackets [X] are configured and dimensioned so that the
elongate support member [XXII] extends horizontally from said one end to the other end
when the bracket [X’] is mounted on the plate member [XXV] and the bracket [X’’] is
inverted and mounted on the floor [XXVI]. This is effectively achieved by the specific
location of the tube [XIV] on the wall plate [XVI] of the angle section [XII] when the bracket
[X] is fabricated. That is, a central axis of the tube [XIV] is positioned midway up the
height of the wall plate [XVI] when the bracket [X] is mounted on the plate member [XXV].
That way when it is inverted the central axis is at the same height. This is very convenient
because it ensures that the support strut [XX] is horizontally extending without any effort
or skill being required of the installer. It follows that if both the support struts [XX] are at
the same height and are horizontally extending, a deck mounted on the support struts
[XX] will automatically be horizontally extending. Importantly the horizontal orientation
does not rely on the skill of the installer to mount the brackets [X] so that the strut [XX] is
horizontally extending. It uses the standard dimensions of stud timber used for building
timber frames for houses to provide a bracket [X] that positions the tube [XIV] at the same
height whether it is upright or whether it is inverted…
Fig. [2] illustrates a part of a void platform which is indicated generally by the reference
numeral [XL] for providing a temporary floor support across a void [XLII] during
construction. The void platform [XL] includes two parallel extending support struts [XX]
as described above and illustrated in Fig. [1]. The support struts [XX] extend parallel to
each other across a width of the void [XLII] [as shown in Figure 1] and are spaced apart
along the length of the void [XLII]. Each strut [XX] comprises an elongate support
member [XXII] having horizontal mounting brackets [X] at each end thereof as described
above and illustrated in Figs. [1].
The void platform [LX] further includes a plurality of decking panels [XLIV] mounted on
the support struts [XX]. The decking panels [XLIV] collectively form a deck surface for
builders, tradesmen, certifiers, and engineers (hereinafter referred to as building
workers) working on the construction. It provides a continuous working surface that
extends across the void and prevents building workers from falling through the void. It
also provides a useful work platform enabling building workers to reach work surfaces
above the platform that they otherwise could not reach without a ladder or scaffold.
Each decking panel [XLIV] has a first end and a second end, and mounting formations
[XLVI] on these ends for engaging the support struts [XX]. The mounting formations
[XLVI] are configured to engage the elongate members [XXII] in retaining fashion on the
support struts [XX] by having a curved engagement surface which fits over and around
the support member [XXII].
In use, the void platform [XL] is used to extend across a void [XLII] formed in a building
and provide a working platform. In a typical application on a high set or double story
home the void platform [XL] is mounted at the same height as the upper level floor. A
hatch door [in one of the panels, not shown in Figure 1 or 2] can be used to facilitate
access to the void platform from the ground level [or from the floor or level below] by
means of a ladder or the like [which can extend up through the hatch door to allow the
building worker to gain access to the void platform through the hatch door].
The mounting brackets [X] are used to mount spaced pairs of support struts [XX] on the
building structure around the void and then decking panels [XLIV] are mounted on these
support struts. The struts [XX] and panels [XLIV] are formed and arranged so as to
substantially cover the space defined by the void [XLII]. Once the void platform [XL] is
constructed it can be used by building workers to access wall and ceiling surfaces above
the platform without risk of falling through the void onto a lower level. Once building work
on the void is complete the void platform can be quickly and easily removed. A staircase
or elevator can then be installed in the void if this is the purpose of the void, or the void
may simply remain open (i.e. as in an atrium) if that is its intended purpose.
In Figures 1 and 2 and the explanations thereof provided in the italicised passages
above from the 444 application, the panels are referred to and labelled collectively as XLIV.
Turning now to Figures 3 and 4, these figures also depict a void platform that has been created
in a void in a building during construction of the building. Figure 3 shows the void platform from
above, and Figure 4 shows the void platform from underneath. In Figures 3 and 4, there are
actually two types of panels used. These two different types of panels are labelled in Figures 3
and 4 as panels XLIV’ and XLIV” respectively. As most clearly shown in Figure 3, the panels
XLIV” (several of which are shown) happen to be wider than the panel XLIV’ (only one of which
is shown), although this may not always be the case. For the avoidance of doubt, the panels
XLIV’ and XLIV” are both forms of panel that have previously been used and neither incorporate
or embody the present invention.
The construction of the panel XLIV’ is also slightly different to the construction of the
panels XLIV”. The main difference is that, in the panel XLIV’, the surface component SC’ which
forms the surface of the panel (i.e. the part of the panel XLIV’ that forms the surface upon which
building workers can work and walk when the panel is in use as part of a void platform) is made
from a sheet of wood (plywood or the like). In contrast, in the panels XLIV”, the (multiple) surface
components SC” of the panel (i.e. the parts of the panel XLIV” that together form the surface
upon which builders can work and walk) are formed from polycarbonate or other strong plastic
or polymer. This difference (in terms of the materials from which the surface components SC are
made) is visible in Figures 3 and 4, and in relation to the panels XLIV”, the surface components
SC” of which are polycarbonate, this is further illustrated in Figures 5 and 6. Figure 5 shows the
underside of one of the panels XLIV” used in Figures 3 and 4, and Figure 6 shows the top/upper
surface of a shorter variant of these panels which incorporates a hinged hatch door HD”. The
panel in Figure 6 is therefore a form of “access panel” because, when the panel shown in Figure
6 is in use as part of a void platform, the hatch door can be opened to allow access to the void
platform from below. Note that, in Figure 6, there are locations for a hinge to be attached on
either side of the opening in the panel covered by the hatch door, but the hatch door would only
ever be hinged on one of these sides at any one time, but this can be switched, depending on
which way the hatch door needs to open and close when the access panel is in use in a particular
void platform.
Whilst the construction of the panels XLIV” and XLIV’ differs in terms of the material
from which the surface component(s) thereof are made, aside from this, the overall construction
of these panels is otherwise much the same. In both cases (i.e. for the panel XLIV’ and for the
panel XLIV”), the panel surface component(s) (whether made from wood or polymer) is/are
attached to and supported on a pair of spaced apart, parallel aluminium rails R. The two rails R
on a given panel are also joined to one another by cross members or other panel subframe
members, indicated generally as M. The cross/subframe members M of the panel XLIV’ can be
seen in Figure 4. The cross/subframe members M on the underside of the panels XLIV” can be
seen in Figure 4 and also in Figure 5. The construction of the panels is further illustrated in Figure
7, which schematically illustrates one of these panels in end-on cross-section.
As shown in Figure 7, the surface component SC of the panel (this could be a
wooden surface component SC’ of a panel XLIV’ or a polymer surface component SC” of a panel
XLIV”) is supported on top of the spaced apart, parallel rails R. The rails R are thus located
beneath the surface component SC towards, but slightly inward from, the respective parallel,
opposed side edges of the surface component SC (i.e. the rails R are slightly inward from the
sides of the surface component SC that correspond to the long side edges of the panel). Each
of the rails R has a cross-section which resembles an inverted “T”. More specifically, the web W
of each rail R corresponds to the vertical portion of the inverted “T”, and the lower flange “F” of
each rail R corresponds to the horizontal (or cross) portion of the inverted “T”. Attached to the
top of the web W on each rail R is a supporting channel piece which, like the rail, is typically
made from metal such as aluminium. Like the rails R, the supporting channel pieces on the tops
of each respective rail run the full length of the rail (and hence the full length of the panel). When
viewed in cross-section, each of the supporting channel pieces has a flat plate portion P which
is attached, and perpendicular, to the top of the web W of the rail and which supports the
underside of the outer portion of the surface component SC on the relevant side of the panel,
and on the outside of the plate P of each of the supporting channel pieces there is a channel
portion C which extends up and over (i.e. which is in effect folded over to form a channel which
receives) the outside edge of the surface component SC to thereby retain that outside edge of
the surface component to the rail (i.e. to prevent the surface component from lifting away from
or off the rail). In addition to this, in some panels, there are additional fasteners and/or other
forms of fixings which extend into or through or between the rails and the surface component(s)
to secure the surface component(s) to or relative to the rails (some such fasteners and other
fixing arrangements are visible or partly visible in e.g. Figure 3 and Figure 6, however none of
these are labelled in the figures nor will they be described further).
It was mentioned above that each panel has a first end and a second end, and that
there are mounting formations XLVI on these ends for engaging the support struts XX. In the
particular panels illustrated in Figures 2-7, these mounting formations XLVI all effectively “hook
over” the elongate support members XXII such that the curved engagement surfaces of each of
the mounting formations XLVI engages around the (round) outer surface of the relevant support
strut XX. For ease of reference, the mounting formations XLVI on the panels will be referred to
as hooks.
In order to enable panels to be installed end-to-end in their lengthwise direction when
constructing a void platform (note: none of the figures show this), the hooks on one end (e.g. the
first end) of each panel must generally be offset from the hooks on the other (e.g. second) end.
This is because, when two panels are installed end-to-end in the longitudinal/lengthwise
direction, the first end of one panel must be supported on the same support strut XX as the
second end of the other panel. Therefore, the hooks on the first end of the first panel must
engage with and become supported on the same support strut XX as the hooks on the second
end of the second panel. To enable the hooks on the first end of the first panel to be supported
on the same support strut XX as the hooks on the second end of the second panel at the same
time, the hooks on the first end of the first panel must each be horizontally offset (i.e. offset to
one side) relative to the respective corresponding hooks on the second end of second panel.
Otherwise, if the hooks on the first end of the first panel were not each horizontally offset relative
to (i.e. if they were both horizontally in line with) the respective corresponding hooks on the
second end of the second panel, the hooks on the first end of the first panel would collide with
the hooks on the second end of the second panel when attempting to install the panels end-to-
end – this would mean that the two panels could not be safely supported (at least not
longitudinally in-line with each other as required) on the same support strut XX. However, if the
hooks on the first end of the first panel are each horizontally offset relative to (i.e. if they are
each located horizontally to one side of) the respective corresponding hooks on the second end
of the second panel, the hooks on the first end of the first panel will not collide with, but rather
they will sit safely side-by-side on the support strut XX with the hooks on the second end of the
second panel – this means that the two panels can be safely supported (longitudinally in-line
with each other as required) on the same support strut XX.
For the panels of the types shown in Figures 2-7, the way in which this (i.e. having
the hooks on one end (the first end) horizontally offset from the hooks on the other (second)
end) is achieved is by installing the hooks at one end of the panel on one side of both webs W
of the rails, and at the other end of the panel the hooks are installed on the opposite side of both
webs W of the rails. That is to say, at one end of the panel, both of the hooks would be installed
on the sides of the webs W of the rails marked A in Figure 7, and at the other end of the panel
both of the hooks would be installed on the sides of the webs W of the rails marked B.
There are a number of problems with the previously used panels described above
and shown in Figures 2-7. One of these problems is that, when one of these panels is in use as
part of a void platform and a significant downward/vertical force is applied to or near a very outer
side or edge of the panel, such as when a building worker steps or leans heavily on the very
outer side or edge of the panel, or if a heavy object is dropped onto the very outer side or side
edge of the panel, or if a heavy weight is placed thereon (the vertically downward force created
on the very outer side or edge of the panel in all of these examples is indicated by the double
arrow I in Figure 7) this can cause the panel to tip up such that the other opposite long side of
the panel lifts up out of engagement with the support strut – this “tipping” of the panel is indicated
by double arrow L in Figure 7. This kind of “tipping” of the panel can be very dangerous for
building workers who are working on the void platform. For example, if one of the panels tips or
tilts such that one of its sides lifts up out of engagement with the support struts, there is a danger
that a person or object could fall through the opening beneath the underside of the tilting panel
created when that panel tilts or lifts up. Also, it is common for the panel that has lifted up to then
crash back down again, often violently, and this may cause damage to objects or injuries to body
parts which may be caught underneath the panel edge (or between the lifted panel edge and
the edge of the horizontally adjacent panel) when it crashes back down. Furthermore, when the
panel tilts up, this may cause a person standing on the panel to lose balance and fall, or it may
cause objects resting on the panel to slide and become dislodged, etc. It will be appreciated
that all of these things may be extremely dangerous and are undesirable.
Another problem with the previously used panels above is that the panels can often
become damaged e.g. when they are being loaded onto or off a truck when being moved from
one site to another, or when they are being moved temporarily into storage, or when they are
being moved around as a particular void platform is being constructed or deconstructed. For
instance, due to the shape of the panels (generally longer than they are wide), it is typically
easiest for workers to lift and carry individual panels vertically upright by grasping the panel with
one hand holding either of the long side edges. However, workers also often treat the panels
quite roughly - this may be due e.g. to the fact that the panels can be heavy and also due to the
need to move as many of the panels in as short a period of time as possible. As a result of these
and other factors, it is not uncommon for the panels to be dropped on one end, often so that
when the panel hits the ground the full weight of the panel is born by a single one of the hooks
extending from near one of the corners of the panel. The hooks are not designed to withstand
this kind of impact loading, and as a result this can often cause the impacted hook to become
bent or broken (and because the hooks are typically made from aluminium alloy, they typically
cannot simply be bent back and therefore typically need to be removed and replaced). Moreover,
this kind of impact loading near one end corner of the panel can often lead to the entire panel
becoming bent or distorted out of shape. Specifically, it can often lead to the whole frame or
structure of the panel becoming canted or skewed into a slight parallelogram shape, as shown
in Figure 8. Note that the extent of this canting deformation is exaggerated in Figure 8 for
illustrative purposes. Nevertheless, where this occurs, significant repair work may be required
before the panel can be safely returned to use. This may even require the panel to be
disassembled or deconstructed (which may involve removing the surface component(s) and/or
cutting the cross and/or subframing members away from the rails so that the cross/subframing
members can be reattached, or new ones attached, square (rather than in a distorted/bent
arrangement) between the rails, etc). This is obviously undesirable, not only due to the cost and
effort involved in such repair work, but also because such damaged panels must be taken out
of service and cannot be used until appropriate remediation work has been performed.
A further problem with the previously used panels above is that, due to their
construction, these panels can often be very heavy. This can make them more difficult to use for
installers when constructing or deconstructing a void platform, and also more difficult to load and
unload from trucks for transport, etc.
It is to be clearly understood that mere reference in this specification to any previous
or existing devices, apparatus, products, systems, methods, practices, publications or indeed to
any other information, or to any problems or issues, does not constitute an acknowledgement or
admission that any of those things, whether individually or in any combination, formed part of
the common general knowledge of those skilled in the field or is admissible prior art.
SUMMARY OF THE INVENTION
In a first form, although not necessarily the only or broadest form, the invention
resides in a panel suitable for installation to form a platform or part of a platform in a void of a
building structure, the panel being operable to extend between (and span the space between) a
first support member and a second support member where both support members extend across
at least a portion of the void, the panel having:
a deck component with:
a first end and a second end opposite the first end;
a pair of opposed, substantially straight sides each extending from the first end
to the second end; and
a substantially planar (upper) surface portion (this surface portion will typically be
what forms a working surface of the panel, and hence a working surface of the
platform or part of the platform, when the panel is in use) which extends:
between the opposed sides at (and/or in the vicinity of) the first end (i.e.
at the first end of the deck component the surface portion will typically
extend from one side to the other in the panel’s width direction), and
from the first end at least part of the way, but not necessarily all of the
way, to the second end (i.e. in the panel’s length direction, the surface
portion may extend from the first end all the way to the second end, or
only part of the way from the first end to the second end); and
one or more first engaging formations at (or associated with) the first end of the deck
component and operable to engage with the first support member to support the deck
component relative to the first support member, and
one or more second engaging formations at (or associated with) the second end of the
deck component and operable to engage with the second support member to support
the deck component relative to the second support member (the second engaging
formation(s) may be the same as, or different to, the first engaging formation(s)),
wherein the first engaging formation(s) and/or the second engaging formation(s) (i.e. the
engaging formation(s) at (or associated with) at least one end of the deck component)
is/are configured to support the relevant end of the deck component relative to the
relevant support member from (*at least) approximately directly vertically beneath, and/or
from (*at least) approximately within vertical planes containing, each of the straight sides
of the deck component.
Hence, at one of the ends of the deck component at least, the configuration of the
engaging formation(s) at that end, and/or the way in which or the location at which the engaging
formation(s) connect/contact/join to or with the deck component at that end, and/or the way in
which or the location at which the engaging formation(s) at that end engage the support member,
should be such that support for that end of the deck component relative to the support member
is provided: from approximately directly vertically beneath each of the straight sides of the deck
component; and/or and from approximately within a pair of vertical planes each containing a
respective one of the straight sides of the deck component. However it should also be noted that
the engaging formation(s) at the said end may also engage with the relevant support member at
other locations and/or in other ways too (this last point is what the words “*at least” above
signify).
It is thought that the invention in the first broad form described above may help to
overcome or reduce the problem discussed in the Background section above associated with
“tipping” or “tilting” of panels. It is thought that that problem can arise with the forms of decking
panel that have previously been used (which are described in the Background section above)
because, on those previous panels, there is a horizontal space or distance (this distance is
represented as LA in Figure 7) between the very outer side or edge of the panel and the location
relative to the panel where the hooks engage and provide support for the panel when supported
on the support members (support struts). Recall that, in the previously used panels described
above, the hooks attach to one side or other of the web W of the respective rails R (the hooks
on one end of the panel attach on one side of the web W of the rails and the hooks on the other
end of the panel attach on the other side of the web W of the rails). In any case, the hooks in the
previously used panels are attached to the webs of the rails. As a result of this, when a downward
force is applied to the very outer side or edge of the panel as indicated by arrow I in Figure 7,
this downward force is applied at a distance LA horizontally to the outside of the location relative
to the panel where the hooks engage and provide support for the panel. This distance (i.e. the
outer portion of the panel within the distance or space LA) therefore effectively operates as a
lever arm, such that the downward force I causes the overall panel to pivot about the location
where the nearby hook provides support for the panel relative to the support strut. This is
therefore what causes the panel to tip or tilt up, as indicated by arrow L.
It is thought that the invention in the first broad form described above may help to
overcome or reduce this tipping problem because, at one of the ends of the deck component at
least, the engaging formation(s) support the relevant end of the deck component relative to the
relevant support member from approximately directly vertically beneath, and/or from
approximately within vertical planes containing, each of the straight sides of the deck
component. Because the engaging formation(s) (at least at one end of the panel) support the
deck component relative to the associated support member from approximately directly vertically
beneath each of the straight sides of the deck component, and/or from approximately within
vertical planes containing the respective straight sides, consequently even if a significant vertical
impact or load is imposed on one of very outside edges or sides of the panel, the line of action
of such force would effectively extend through (or at least very close to) the location where the
engaging formation(s) support the deck component. In other words, there is no (or substantially
no) space or distance in the horizontal direction between the location where the force is imposed
(on the very outer side or edge of the panel) and the location where the support member(s)
support the deck component (which is also vertically beneath or in the same vertical plane as
the relevant outer side or edge of the panel). In other words, there is no (or substantially no)
horizontal space or distance like LA in Figure 7. Consequently, no (or substantially no) lever
arm is created that would cause the panel to tip or tilt.
In some preferred embodiments, the first and the second engaging formation(s) (i.e.
the engaging formation(s) at (or associated with) both ends of the deck component) may each
be configured to support their respective ends of the deck component relative to the respective
support members from (*at least) approximately directly vertically beneath, and/or from (*at
least) approximately within vertical planes containing, each of the straight sides of the deck
component. In other words, in these embodiments, at both ends of the deck component, the
configuration of the engaging formation(s), and/or the way in which or the location at which the
engaging formation(s) connect/contact/join to or with the deck component, and/or the way in
which or the location at which the engaging formation(s) engage the support members, may be
such that support for the ends of the deck component relative to the respective associated
support members is provided from approximately directly vertically beneath each of the straight
sides of the deck component, and/or from approximately within a pair of vertical planes each
containing a respective one of the straight sides of the deck component, although it should again
be noted that the engaging formation(s) at the ends may also engage with the relevant support
members at other locations and/or in other ways too (this last point is again what the words “*at
least” above signify).
The embodiments referred to in the previous paragraph, wherein the engaging
formation(s) at both ends of the deck component support their respective ends of the deck
component relative to the respective support members from approximately directly vertically
beneath, and/or from approximately within vertical planes containing, each of the straight sides
of the deck component, may be even more effective at preventing the tipping or tilting problem
than embodiments in which the engaging formation(s) at only one of the ends of the deck
component support the ends of the deck component relative to the relevant support member
from approximately directly vertically beneath and/or from approximately within vertical planes
containing each of the straight sides of the deck component.
The deck component may further include a side portion. The side portion may extend
at least partly along one of the sides of the deck component. Often, the deck component may
include side portions on either side of the deck component. The side portion(s) on each side
may extend at least partly along the side. Alternatively, the deck component includes side
portions on either side, there may be a single side portion on each side of the deck component,
and both of the side portions may extend all the way from the first end to the second end of the
deck component. However, further alternative embodiments are also possible in which the side
portion on one or both sides extends for only part of the length of the relevant side. There may
also be embodiments in which multiple side portions are provided on a given side of the deck
component. In that case, one of the side portions may extend along a portion of the said side of
the deck component, and another side portion may extend along another portion of the same
side of the deck component, and there may or may not be spaces between the separate side
portions along the said side of the deck component. The side portion(s) on one side of the deck
component need not necessarily be the same as the side portion(s) on the other side, and it may
be that only one side of the deck component has side portion(s).
In some preferred embodiments, there may be a single side portion on each side of
the deck component, and on each side of the deck component the side portion may extend
substantially along the whole side from the first end to the second end. Where this is the case,
the side portions on the respective sides of the deck component may help to provide or improve
the deck component’s structural strength and/or rigidity. The side portions may also provide a
location or means for mounting the engaging formation(s) or for otherwise enabling the engaging
formation(s) (at one or both ends of the deck component) to join or connect to the deck
component.
In the embodiments described in the previous paragraph where there is a single side
portion on each side of the deck component and the side portion on each side of the deck
component extends substantially along the whole side from the first end to the second end, when
the panel is in use supported by the support members, the (substantially planar/flat) surface
portion of the deck component may be substantially horizontal, and the side portions may be
formed so that in use they extend (or depend) relatively at least somewhat downwardly from the
sides of the deck component. In some preferred instances, the side portions may be formed so
that they extend (or depend) downward from the sides of deck component substantially
perpendicular to the (horizontal in use) surface portion.
Each of the side portions may be integral with the (planar) surface portion of the deck
component. If the side portions are “integral with the surface portion”, this is intended to cover
the situation where the side portions are formed together with (i.e. as a single piece with) the
surface portion, but it is also intended to covers the situation where the side portions are initially
formed separately but then joined to the sides of the surface portion, e.g. by welding or the like,
so as to become in effect a single component with, or part of one and the same component as,
the surface portion. Whilst it is considered that the side portions may often (i.e. in many
embodiments they will) be integral with the surface portion of the deck component (where
integral has the meaning just described), there also may be alternative embodiments in which
the side portions are formed separately from the surface portion and then simply attached or
connected to the surface portion e.g. by bolts or rivets or other fasteners. In this latter case,
however, whilst the side portions would be attached to the surface portion, they would not
effectively become a part of one and the same component as the surface portion, and therefore
would not be considered to be integral with the surface portion.
In embodiments where each of the side portions is integral with the surface portion
of the deck component, the surface portion and the side portions of the deck component may be
formed as a single, unitary component from a single piece of material. Typically, albeit not
necessarily or always, the material may be a metal or metal alloy. In some embodiments, the
deck component (which includes the surface portion and the side portions which depend from
the sides of the deck portion) may be roll formed and/or folded from sheet metal. However, for
the avoidance of doubt, other manufacturing processes and techniques may also be possible,
and if so used, for example extrusion.
In some particular embodiments the deck component may be made from aluminium
alloy sheet. In such embodiments, it is thought that relatively thin aluminium alloy sheet, for
example with a thickness of around 3 mm, may be sufficient to provide the deck component with
adequate strength and rigidity.
The surface portion of the deck component may have a number of holes or other
openings formed therein. The number, shape and/or arrangement of these holes or other
openings may help to reduce the weight of the deck component, add rigidity, and/or provide grip.
However, preferably none of the holes or other openings should be large enough for anything
large to fall through, which might cause danger to persons below when the panel is in use as a
platform or part of a platform in a void. In embodiments where the deck component is made
from sheet metal such as aluminium sheet or the like, at least some of the holes (if present) may
be laser cut. Alternatively, or additionally, the holes (or some of the holes, if not all of them) may
be punched from below so as to form raised rims associated with each punched hole. These
raised rims associated with each punched hole may provide greater rigidity and/or grip.
In some embodiments, the surface portion of the deck component may have a
number of relatively larger holes (these larger holes should preferably still not be large enough
for anything large or dangerous to fall through) and also a number of relatively smaller holes
formed therein. The larger holes and the smaller holes may be interspersed evenly, or in a
consistent or repeating arrangement with one another, over at least a portion of the area
(typically a majority of the area) of the surface portion.
In some embodiments:
the first engaging formation(s) (recall that these are at (or associated with) the
first end of the deck component and operate to engage with the first support
member to support the deck component relative to the first support member) may
include a pair of hook members,
each hook member may have a mounting portion and a support member
engaging portion,
the mounting portion of one of the hook members may be mounted to an inside
surface of the side portion on one side of the deck component, such that the
support member engaging portion of this hook member projects out beyond the
first end of the deck component, and
the mounting portion of the other of the hook member may be mounted to an
inside surface of the side portion on the other side of the deck component, such
that the support member engaging portion of that hook member also projects out
beyond the first end of the deck component.
The amount/distance which the support member engaging portion of the second-mentioned
hook member above projects out from the first end of the deck component may often (although
not necessarily always) need to be the same as the amount which the support member engaging
portion of the first-mentioned hook member above projects out. E.g. if the first support member
extends perpendicular to the lengthwise direction of the panel, the support member engaging
portions of these two hook members at the first end of the deck component should (at least
usually) extend out the same distance from the first end. However, it may be that the amount
which the support member engaging portion of one of the hook members extends out from the
first end of the deck component can be adjusted or varied to be different to the amount which
the support member engaging portion of the other hook member extends out form the first end.
This may be useful or required if there is a need for the two hook members to both engage with
a first support member that extends at an angle other than perpendicular to the lengthwise
direction of the panel.
Similar to the above, in some embodiments:
the second engaging formation(s) (recall that these are at (or associated with) the
second end of the deck component and operate to engage with the second
support member to support the deck component relative to the second support
member) may include a pair of hook members,
each hook member may have a mounting portion and a support member
engaging portion,
the mounting portion of one of the hook members may be mounted to an inside
surface of the side portion on one side of the deck component, such that the
support member engaging portion of this hook member projects out beyond the
second end of the deck component, and
the mounting portion of the other of the hook member may be mounted to an
inside surface of the side portion on the other side of the deck component, such
that the support member engaging portion of that hook member also projects out
beyond the second end of the deck component.
As above, the amount/distance which the support member engaging portion of the second-
mentioned hook member above projects out from the second end of the deck component may
often (although not necessarily always) need to be the same as the amount which the support
member engaging portion of the first-mentioned hook member above projects out. E.g. if the
second support member extends perpendicular to the lengthwise direction of the panel, the
support member engaging portions of the two hook members at the second end of the deck
component should (at least usually) extend out the same distance form the second end.
However, it may be that the amount which the support member engaging portion of one of the
hook members extends out from the second end of the deck component can be adjusted or
varied to be different to the amount which the support member engaging portion of the other
hook member extends out from the second end. And as above, this may be useful or required if
there is a need for the two hook members at the second end to both engage with a second
support member that extends at an angle other than perpendicular to the lengthwise direction of
the panel.
At one of the ends of the deck component (this may be the first end or the second
end), the support member engaging portions of the two hook members may be horizontally offset
(i.e. horizontally inwards or horizontally outwards or horizontally to one side) relative to the
mounting portions, and at the other end of the deck component, the support member engaging
portions of the two hook members may be not horizontally offset relative to the mounting
portions. This may allow one of the panels to be mounted end-to-end with another of the panels,
with the first end of one panel being supported on the same support member as the second end
of the other panel, without the hook members on the first end of the first panel colliding with the
hook members of the second panel.
The deck component of the panel may include an access opening. If/when it does
so, in the deck component:
the surface portion may extend:
in a width direction of the panel, between the opposed sides at the first
end, and
in a length direction of the panel, from the first end towards the second
end before reaching an edge of the access opening which is closest to
the first end; and
the access opening may extend:
in the width direction of the panel, between the opposed sides, and
in the length direction of the panel, towards the second end from the edge
of the access opening which is closest to the first end and for at least part of the
way, but not necessarily all of the way, to the second end (i.e. in the panel’s length
direction, the access opening may extend from the edge of the access opening
closest to the first end (the edge where the surface portion terminates at the
access opening) all the way to the second end, or only part of the way to the
second end).
The panel may also have a hatch door which can be closed to cover the access
opening and opened to allow access through the access opening. When the hatch door is closed
it may cover the access opening and operate effectively as part of, or an extension of, the deck
component’s surface portion. The hatch door may be hingedly connected to (or near) one of the
sides of the deck component and pivot about the hinged connection when it is moved from open
to closed and closed to open. Preferably, it may be possible for the side of the deck component
to (or near) which the hatch door is hingedly connected to be swapped (i.e. so that if the hatch
door is initially hingedly connected to (or near) one side of the deck component, this can be
swapped so that the hatch door becomes hingedly connected to (or near) the other side of the
deck component if needed).
The panel may have at least one cross bracing member. One end of the (or each)
cross bracing member may be attached to (or near) an inside surface of the side portion on one
side of the deck component, and the other end of the (or each) cross member may be attached
to (or near) the inside surface of the side portion on the other side of the deck component.
In embodiments where the deck component includes an access opening, the deck
component may also include a ladder top receiving opening. Where this is the case, in the deck
component:
the surface portion may extend:
in a width direction of the panel, between the opposed sides at the first
end, and
in a length direction of the panel, from the first end towards the second
end before reaching an edge of the access which is opening closest to
the first end;
the access opening may extend:
in the width direction of the panel, between the opposed sides, and
in the length direction of the panel, from the edge of the access opening
which is closest to the first end towards the second end before reaching
an edge of the ladder top receiving opening which is closest to the first
end; and
the ladder top receiving opening may extend:
in the width direction of the panel, between the opposed sides, and
in the length direction of the panel, towards the second end from the edge
of the ladder top receiving opening which is closest to the first end and for
at least part of the way, but not necessarily all of the way, to the second
end.
There may be a cross bracing member between the access opening and the ladder
top receiving opening. And in fact, it may be that a cross bracing member is all that separates
the access opening from the ladder top receiving opening, so this cross bracing member may
define the edges of the access opening and the ladder top receiving opening, where the two
meet.
As mentioned above, the deck component of the panel may include an access
opening. If/when it does so, in the deck component
the surface portion may extend:
in a width direction of the panel, between the opposed sides at the first
end, and
in a length direction of the panel, from the first end towards the second
end before reaching an edge of the access opening closest to the first
end; and
in the width direction of the panel, between the opposed sides at the
second end, and
in the length direction of the panel, from the second end back towards the
first end before reaching an edge of the access opening closest to the
second end; and
the access opening may extend:
in the width direction of the panel, between the opposed sides, and
in the length direction of the panel, between the edge of the access
opening closest to the first end and the edge of the access opening closest
to the second end.
The panel may further include means for securing a ladder relative to the panel. The
means for securing a ladder relative to the panel may be operable to secure the ladder against
sideways movement relative to the panel (i.e. movement of the ladder relative to the panel in the
panel’s width direction). The means for securing a ladder relative to the panel may alternatively
or also be operable to secure the ladder against movement relative to the panel in a length
direction of the panel. The means for securing a ladder relative to the panel may alternatively
or also be operable to secure the ladder against sliding vertically/down relative to the panel and
out of engagement with the panel.
The means for securing a ladder relative to the panel may include a pair of slots or
openings which extend from the access opening into the surface portion (towards one or other
end), each of the slots being spaced from the other in the panel’s width direction by a distance
suitable to receive siderails of a ladder.
The means for securing a ladder relative to the panel may further include a securing
member, the securing member being operable to be disengaged relative to the surface portion
(or relative to a component attached to the surface portion) to allow installation of the ladder with
the siderails of the ladder being received in the slots, and the securing member also being
operable to be engaged relative to the surface portion (or relative to a component attached to
the surface portion) to secure the siderails of the ladder in the slots.
The surface portion of the deck component may have a part which extends in
between the slots, and when a ladder is secured relative to the panel with the siderails of the
ladder secured in the slots, the ladder may be prevented from sliding vertically out of
engagement with the panel provided at least one rung of the ladder is installed above the surface
portion (because if the ladder were to slide vertically relative to the panel, the rung of the ladder
would collide with the part of the surface portion which extends between the slots).
In a second form, although (again) not necessarily the only or broadest form, the
invention resides in a panel suitable for installation to form a platform or part of a platform in a
void of a building structure, the panel having:
a deck component with a substantially planar surface portion;
an access opening in the surface portion,
(optionally) a cover for covering/closing and uncovering/opening the access opening in
the surface portion; and
means for securing a ladder relative to the panel.
As mentioned above, the means for securing a ladder relative to the panel may be
operable to secure the ladder against sideways movement relative to the panel (i.e. movement
of the ladder relative to the panel in the panel’s width direction). The means for securing a ladder
relative to the panel may alternatively or also be operable to secure the ladder against movement
relative to the panel in the panel’s length direction. And, the means for securing a ladder relative
to the panel may alternatively or also be operable to secure the ladder against sliding
vertically/down relative to the panel and out of engagement with the panel.
As also mentioned above, the means for securing a ladder relative to the panel may
include a pair of slots or openings which extend from the access opening into the surface portion,
each of the slots being spaced from the other in a sideways (width) direction of the panel by a
distance suitable to receive siderails of a ladder. The means for securing a ladder relative to the
panel may further include a securing member, the securing member being operable to be
disengaged relative to the surface portion (or relative to a component attached to the surface
portion) to allow installation of a ladder with the siderails of the ladder being received in the slots,
and the securing member also being operable to be engaged relative to the surface portion (or
relative to a component attached to the surface portion) to secure the siderails of the ladder in
the slots. And, the surface portion of the deck component may have a part which extends in
between the slots, and when a ladder is secured relative to the panel with the siderails of the
ladder secured in the slots, the ladder is prevented from sliding vertically out of engagement with
the panel provided at least one rung of the ladder is installed above the surface portion (because
if the ladder were to slide vertically relative to the panel, the rung of the ladder would collide with
the part of the surface portion which extends between the slots).
In a third form, although (again) not necessarily the only or broadest form, the
invention resides in a platform installed in a void of a building structure, the platform including a
first support member and a second support member both of which extend across at least a
portion of the void, and a panel, which is in accordance with the first form of the invention
described above, extending between (and spanning the space between) the first support
member and the second support member.
In a fourth form, although (again) not necessarily the only or broadest form, the
invention resides in a platform installed in a void of a building structure, the platform including:
a first support member and a second support member both of which extend across at
least a portion of the void,
a first panel, being a panel which is in accordance with the first form of the invention
described above, extending between (and spanning the space between) the first support
member and the second support member, and
a second panel, also being a panel which is in accordance with the first form of the
invention described above, extending between (and spanning the space between) the
first support member and the second support member adjacent or beside the first panel
(i.e. such that the second panel extends between the first support member and the
second support member beside, or horizontally to one side of, the first panel).
In some embodiments of the fourth form of the invention, the first panel may have a
deck component the surface portion of which includes holes or other openings (as described
above), and the second panel may also have a deck component the surface portion of which
includes holes or other openings (as described above), and there may be a space between the
two panels, wherein the space between the two panels is spanned by a link panel which also
has holes or other openings in a surface portion thereof, and the link panel is secured relative to
the first panel by inserting a plug into each of one or more of the holes in the link panel and
through into one or more aligned holes in the first panel, and the link panel is secured relative to
the second panel by inserting a plug into each of one or more of the holes in the link panel and
through into one or more aligned holes in the second panel.
Any of the features described herein can be combined in any combination with any
one or more of the other features described herein within the scope of the invention.
BRIEF DESCRIPTION OF THE FIGURES
Preferred features, embodiments and variations of the invention may be discerned
from the following Detailed Description section which provides sufficient information for those
skilled in the art to perform the invention. The Detailed Description section is not to be regarded
as limiting the scope of the preceding Summary of Invention section in any way. The Detailed
Description section, and the Background section above, make reference to a number of Figures
as follows:
Figures 1 is an illustration, which is identical to the illustration that forms Figure 4 of
the above-mentioned 444 application, and it shows, from above, two support struts mounted in
position extending across a void in a building.
Figure 2 is an illustration, which is identical to the illustration that forms Figure 6 in
the 444 application, and it shows the support struts in Figure 1 with two panels mounted thereon
and extending across the void to form a void platform (or part of a void platform).
Figure 3 is another illustration showing, from above, a void in a building which is
spanned in one direction by support struts, and also shown are a number of panels which are
supported by and extend between the support struts (perpendicular to the support struts) to form
a void platform (or part of a void platform).
Figure 4 shows the void, support struts and panels of Figure 3, but from underneath.
Figure 5 is an illustration of the underside of one of the kinds of panels used to form
the void platform in Figures 3 and 4.
Figure 6 is an illustration of the upper surface of a panel which is similar to the one
in Figure 5 except that the panel in Figure 6 is shorter than the panel in Figure 5 and it
incorporates a hatch door (the panel in Figure 5 does not incorporate a hatch door). The panel
in Figure 6 is therefore an access panel whereas the panel in Figure 5 is a decking panel.
Figure 7 is a schematic end-on cross-sectional illustration of a panel of the general
kind shown in Figures 2-6.
Figure 8 is a schematic illustration of the way the shape of a panel like the ones
shown in Figures 2-6 can be deformed in the (not uncommon) event of the panel being subjected
to extreme impact loading at or near a corner, such as e.g. by dropping the panel onto one corner
(or onto the hook extending from near one corner of the panel).
Figure 9 is an upper perspective view from one end of a decking panel in accordance
with one possible embodiment of the invention.
Figure 10 is an upper perspective view of the panel in Figure 9 but from the other
end (i.e. the end of the panel which appears closest in Figure 10 is the opposite end of the panel
to the end that appears closest in Figure 9).
Figure 11 is a perspective view of the underside of the panel in Figure 9.
Figure 12 is another perspective view of the underside of the panel in Figure 9.
Figure 13 is a plan view of the panel in Figure 9 from above.
Figure 14 is a plan view of the panel in Figure 9 from underneath.
Figure 15 is a side view of the panel in Figure 9.
Figure 16 is a view of one end of the panel in Figure 9.
Figure 17 is a view of the other end of the panel in Figure 9 (i.e. the end of the panel
which appears closest in Figure 17 is the opposite end of the panel to the end that appears
closest in Figure 16).
Figure 18 is an exploded perspective view of the panel in Figure 9 from above.
Figure 19 is an exploded perspective view of the panel in Figure 9 from underneath.
Figure 20 is an exploded perspective view of the panel in Figure 9 from slightly off
to the side of one end.
Figure 21 is an upper perspective view of a decking panel in accordance with another
possible embodiment of the invention. The decking panel in this embodiment is very similar to
the decking panel in the embodiment in Figures 9-20 except that its shape is longer and
narrower.
Figure 22 is an exploded perspective view of the panel in Figure 21 from above.
Figure 23 is a side view of the panel in Figure 21.
Figure 24 is a plan view of the panel in Figure 21 from underneath.
Figure 24A is a close-up view of Detail A in Figure 24.
Figure 25 is an end view of the panel in Figure 21.
Figure 26 is an upper perspective view from one end of an access panel in
accordance with another possible embodiment of the invention.
Figure 27 is an upper perspective view of the panel in Figure 26 but from the other
end (i.e. the end of the panel which appears closest in Figure 27 is the opposite end of the panel
to the end that appears closest in Figure 26).
Figure 28 is a perspective view of the underside of the panel in Figure 26.
Figure 29 is another perspective view of the underside of the panel in Figure 26.
Figure 30 is a plan view of the panel in Figure 26 from above.
Figure 31 is a plan view of the panel in Figure 26 from underneath.
Figure 32 is a side view of the panel in Figure 26.
Figure 33 is a view of one end of the panel in Figure 26.
Figure 34 is a view of the other end of the panel in Figure 26 (i.e. the end of the panel
which appears closest in Figure 34 is the opposite end of the panel to the end that appears
closest in Figure 33).
Figure 35 is an exploded perspective view of the panel in Figure 26 from above.
Figure 36 is a further (and even more) exploded perspective view of the panel in
Figure 26 from above.
Figure 37 is an exploded perspective view of the panel in Figure 26 from below. In
Figure 37, the parts of the panel are shown exploded relative to one another in the same way,
and to the same extent, as in Figure 36.
Figure 37A is an upper perspective view of the panel in Figure 26 but with the hatch
door shown pivoted open (this is how the hatch door would normally open in use, by pivoting
about a hinged connection to one side of the deck component).
Figure 38 is an upper perspective view from one end of yet another panel, again an
access panel, in accordance with another possible embodiment of the invention. The access
panel in this embodiment is very similar to the access panel in the embodiment in Figures 26-37
except that it is longer.
Figure 39 is a plan view of the panel in Figure 38 from above.
Figure 40 is a side-on cross-sectional view of the panel in Figure 38 taken in the
plane 40-40 shown in Figure 39.
Figure 40DI contains several close-up detail images showing, respectively, Details
D, E, F, G, H and I in Figure 40.
Figure 41 is a plan view of the panel in Figure 38 from underneath.
Figure 42 is an exploded perspective view the panel in Figure 38 from above.
Figure 43 is a plan view of a variant of the hatch door used in the embodiments
relating to access panels.
Figure 44 is a side view of the hatch door in Figure 43.
Figure 45 is a perspective view of the hatch door in Figure 43 from above.
Figure 46 is a perspective view of a plug which may be used, for example, to secure
a link panel between a pair of adjacent panels, e.g. between a pair of adjacent decking panels.
Figure 47 is a side view of the plug in Figure 46.
Figure 48 is also a side view of the plug in Figure 46, but from a side which is
approximately 90° further around the plug compared to the side view in Figure 47.
Figure 49 is a top view of the plug (i.e. from the cap end of the plug).
Figure 50 is a side-on cross-sectional view of the plug in the plane indicated A-A in
Figure 49.
Figure 51 is an upper perspective view from one end of an access panel in
accordance with yet another possible embodiment of the invention.
Figure 52 is an upper perspective view of the panel in Figure 51 but from the other
end (i.e. the end of the panel which appears closest in Figure 52 is the opposite end of the panel
to the end that appears closest in Figure 51).
Figure 53 is a perspective view of the underside of the panel in Figure 51.
Figure 54 is another perspective view of the underside of the panel in Figure 51.
Figure 55 is a plan view of the panel in Figure 51 from above.
Figure 56 is a plan view of the panel in Figure 51 from underneath.
Figure 57 is a side view of the panel in Figure 51.
Figure 58 is a view of one end of the panel in Figure 51.
Figure 59 is a view of the other end of the panel in Figure 51 (i.e. the end of the panel
which appears closest in Figure 59 is the opposite end of the panel to the end that appears
closest in Figure 58).
Figure 60 is an exploded perspective view of the panel in Figure 51 from above.
Figure 61 is a further (and even more) exploded perspective view of the panel in
Figure 51 from above.
Figure 62 is an exploded perspective view of the panel in Figure 51 from below. In
Figure 62, the parts of the panel are shown exploded relative to one another in the same way,
and to the same extent, as in Figure 61.
Figure 63 is an upper perspective view of the panel in Figure 51 but with the hatch
door shown pivoted open (this is how the hatch door would normally open in use, by pivoting
about a hinged connection to one side of the deck component).
Figure 64 is a close-up perspective view of the panel in Figure 51, and with the hatch
door shown pivoted open as in Figure 63, and with the ladder clamp used in this embodiment
shown in the configuration which would enable installation or removal of a ladder relative to the
panel.
Figure 65 is similar to Forget 64 in that it is a close-up perspective view of the panel
in Figure 51, with the hatch door open as in Figure 63, but unlike Figure 64, Figure 65 shows the
ladder clamp in the configuration in which it would secure a ladder in position relative to the
panel.
DETAILED DESCRIPTION
Referring first to Figures 9-20, these figures contain various views of a panel 100 in
accordance with one possible embodiment of the invention. The panel 100 in the embodiment
in Figures 9-20 is a kind of panel that may be described as a decking panel. The panel 100 may
be described as a decking panel because its purpose is to provide an area of decking, i.e. a
surface on which building workers can work and walk, etc, when the panel is installed forming
an elevated platform (or part of such a platform) in a void in a building. Decking panels should,
however, be distinguished from another kind of panel that may be described as access panels.
Access panels may also provide an area of decking (i.e. they may also provide a surface on
which building workers can walk and work, etc, when the panel is installed forming an elevated
platform or part of a platform); however access panels differ from decking panels in that access
panels also incorporate an access opening. The access opening allows a building worker to gain
access to the elevated platform through the area of decking (i.e. so that the building worker can
climb up through the through the surface of the elevated platform, through the access opening,
to gain access to the platform, or climb down through the access opening to leave the platform
and return to the floor or level below). Access panels generally have a hatch door (or other cover)
to open and close the access opening. Decking panels do not incorporate an access opening.
As mentioned above, the panel 100 in Figures 9-20 is a decking panel. However, the present
invention can also be embodied in the form of an access panel, and a number of such
embodiments are described further below and shown in later figures.
Referring to the decking panel 100 in Figures 9-20, this is suitable for installation to
form a platform or part of a platform in a void of a building structure. Whilst not shown in Figures
9-20, it will be appreciated that the decking panel 100 is operable to extend between (and span
the space between) a first support member (e.g. like one of the support struts XX in Figure 1)
and a second support member (e.g. like the other of the support struts XX in Figure 1) where
both of the support members extend across at least a portion of the void.
The various parts that make up the decking panel 100 in the embodiment in Figures
9-20 are perhaps best shown in the exploded view in Figures 18 and 19. As can be seen from
these figures, and from Figures 9-20 generally, the decking panel 100 includes a deck
component 110. The deck component has opposed ends, one of which will be referred to as the
first end 112f and the other of which will be referred to as the second end 112s. Note that, in
relation to this embodiment (and other similar decking panel embodiments), the reference to one
of the ends as the first end and to the other end as the second end is simply to distinguish
between two, and to allow one end or the other to be easily referred to herein. The particular
end which has been chosen to be referred to as the first end is therefore arbitrary, and the other
end could equally have been chosen to be the first end. Similarly, in the embodiment shown, the
straight hook components 150 (discussed below) are connected to the first end 112f and the
offset hook components 160 (discussed below) are connected to the second end 112s.
However, the straight hook components 150 could instead be connected to the second end 112s
and the offset hook components 160 could instead be connected to the first end 112f.
In addition to having the opposed first and second ends 112f and 112s, the deck
component 110 also has a pair of opposed, substantially straight sides 114. The sides 114 both
extend from the first end 112f to the second end 112s. The deck component 110 further includes
a substantially planar surface portion 116. The surface portion 116 (or the upper surface thereof
which is upwardly-facing when the panel 100 is installed and in use) is what forms the working
surface of the panel 100, and hence this is what forms the working surface (or deck area) of the
platform or part of the platform formed by the panel in this embodiment. The surface portion 116
in this embodiment extends between the opposed sides 114 in the panel’s width direction, and
it extends from the first end 112f all the way to the second end 112s in the panel’s length
direction.
The decking panel 100 also includes first engaging formations, which in this
embodiment take the form of a pair of straight hook components 150. (Note that, in other
embodiments, the first engaging formations could take a wide range of other forms or
configurations.) The straight hook components 150 are operable to engage with a first support
member (e.g. like one of the support struts XX in Figure 1) to support the deck component 110
relative to that first support member. The decking panel 100 also includes second engaging
formations, which in this embodiment take the form of a pair of offset hook components 160.
(Note that, in other embodiments, the second engaging formations could also take a wide range
of other forms or configurations.) The offset hook components 160 are operable to engage with
a second support member (e.g. like the other of the support struts XX in Figure 1) to support the
deck component 110 relative to that second support member.
Each hook component, i.e. each of the straight hook components 150 and also each
of the offset hook components 160, has a mounting portion and a support member engaging
portion. On all of the hook components (i.e. on both of the straight hook components 150 and
also on both of the offset hook components 160), the mounting portion is a flat plate-like portion
located towards the rear/inward of the hook component, and the shape of the mounting portion
allows it to be mounted to the inside of one of the side portions 117 of the deck component (but
with the support member engaging portion still projecting out from the relevant end of the deck
component). The mounting portion of each straight hook component is designated 152, and the
mounting portion of each offset hook component 160 is designated 162.
Also, on all of the hook components 150 and 160, the support member engaging
portion is a portion which protrudes forward/outward from the flat, plate-like mounting portion
152,162. The support member engaging portion of each straight hook member 150 is labelled
154, and the support member engaging portion of each offset hook component 160 is labelled
164.The support member engaging portions 154, 164 all have a downwardly-facing, curved
(substantially semicircular) cut-out or indentation 153, 163 configured to slot over (or to receive)
the round outer shape of a support member like those shown in Figure 1. Note, however, that if
the support member(s) with which the hook components on one or both ends of the panel are
required to engage has/have some outer shape other than round, the shape of the downward-
facing cut-out or indentation 153 and/or 163 in the support member engaging portion of the
relevant hook components may also have an equivalent shape configured to slot over (or to
receive) that alternative outer shape of the support member.
The offset hook members 160 have a slightly different configuration to the straight
hook members 150. The difference is that, whereas the support member engaging portions 154
of the straight hook members 150 lie in the same plane as the mounting portion 152 (i.e. such
that the support member engaging portions 154 on the straight hook components 150 are really
just an extension of the mounting portions 152), in contrast to this, on each offset hook
component 160, the support member engaging portion 164 is horizontally offset relative to the
mounting portion 162, and the support member engaging portion 164 is connected to the
mounting portion 162 via an intermediate diagonal segment 161. In other words, on the offset
hook components 160, the support member engaging portions 164 are in a plane which is slightly
horizontally offset from the plane of the mounting portions 162. In the embodiment shown in
Figures 9-20 (and in fact in all embodiments described herein), the two offset hook components
160 are arranged and mounted to the deck component 110 so that their support member
engaging portions 164 are offset horizontally inwards relative to their mounting portions 162. It
would also be possible, however, to mount the offset hook components 160 to the deck
component 110 in such a way that the support member engaging portions 164 would be offset
horizontally outwardly relative to the mounting portions 162. However, a disadvantage of that
might be that it may cause the support member engaging portions 164 to become located even
further horizontally outward than the sides 114 of the deck component (and further outward than
the outer faces of the side portions 117 - see below). That may, in turn, be undesirable as it may
result in an unavoidable (if still small) gap being created between adjacent panels 100 which are
installed side-by-side one another to create (or as part of) a void platform. By connecting the
offset hook components 160 to the deck component 110 such that the support member engaging
portions 164 are offset horizontally inward, the support member engaging portions 164 do not
prevent panels from being installed side-by-side one another and pressed together such that the
side portion 117 of one of the panels contacts or presses against the adjoining side portion 117
of the adjacent panel (i.e. such that there is substantially no undesirable space left between the
panels).
It is important to note that, unlike the hooks used on the prior art panels discussed
in the Background section above, which are made from cast aluminium and therefore often
cannot be bent back into shape (in the event of an impact or the like that bends the hook) and
which therefore often need to be completely replaced if damaged, the hook components 150,
160 just described are made from a tougher and more robust material, such as e.g. steel,
meaning that (in the event of an impact or the like or the like that bends the hook) it is sometimes
possible (depending on how badly bent it is) to simply bend the hook back into shape without
needing to completely replace it. It is envisaged that the hook components 150, 160 may often
be made from nickel coated mild steel.
As alluded to above, the deck component 110 of the panel also has a planar side
portion 117 on both sides. The side portions 117 both extend (or depend) vertically downward
from the respective sides 114 of the deck component 110 (in this embodiment the sides 114 of
the deck component are effectively equivalent to the sides of the surface portion 116), both of
the side portions 117 extend for the full length of the deck component 110 (i.e. from the first end
112f to the second end 112s) and both of the side portions 117 are oriented perpendicular to the
plane of the surface portion 116.
In the embodiment in Figures 9-20 (and in fact in all of the embodiments shown in
the figures of this specification) the entire deck component 110 (i.e. including the surface portion
116 and the two side portions 117) is formed as a single piece, unitary component. More
specifically, the entire deck component 110 is formed by roll forming and/or folding a single piece
(or a single section or a single length) of aluminium alloy sheet into the shape of the deck
component 110 shown. (Note that the holes that are formed in and extend across the majority
of the area of the surface portion 116 (this is discussed further below) are formed as a separate
step or operation from the roll forming and/or folding operation that gives the deck component
110 its overall shape. Typically the formation of the holes will be performed before the roll
forming and/or folding operation; however it could also be done after. The thickness of the
aluminium alloy sheet from which the deck component 110 is made may be varied according to
the different strength and/or rigidity requirements that may exist in different applications.
However, in the embodiment shown, the aluminium sheet has a thickness of 3 mm, and this is
sufficient to provide the required strength and rigidity. Note also that, whilst the material used to
form the deck component 110 in this embodiment is aluminium alloy sheet, sheet of other kinds
of metal (e.g. different grades of steel or the like) may also be used.
It was mentioned above that the deck component is formed such that the planar side
portions 117 on either side of the surface portion 116 extend down from the sides 114
perpendicular to the plane of the surface portion 116. This configuration, together with the
material properties and the thickness of the material (aluminium alloy) from which it is made,
help to give the deck component 110 strength and rigidity.
Also, as perhaps best shown in Figure 20, the lower long side edge of each of the
side portions 117 is “folded under” inwards so as to form a small, upwardly-opening channel 118
extending along on the inside at the bottom of each of the side portions 117. This channel 118
on the bottom of each of the side portions 117 serves a number of purposes. Firstly, it contributes
or adds to the overall strength and rigidity of the deck component 110. Also, the width between
the inside parallel vertical surfaces of each channel 118 is approximately the same as (or slightly
greater than) the thickness of the mounting portions 152, 162 of the respective hook components
150, 160. The distance between the inside base of each channel 118 and the underside of the
surface portion 116 is also approximately the same (or slightly greater than) the height of the
mounting portions 152, 162 of the respective hook components 150, 160. Accordingly, when the
hook components 150, 160 are being mounted to the deck component 110 on the insides of the
side portions 117 (at their respective ends), the mounting portions 152, 162 are slid into the
channels 118 at either end and the close fit of the mounting portions 152, 162 within the ends of
the channels 118 and between the bases of the channels 118 and the underside of the surface
portion 116, helps to hold the mounting portions 152, 162 in place until fasteners (rivets, nuts
and bolts, or the like) can be inserted through the apertures 115 at either end in each of the side
portions 117, and also through the apertures 155, 165 in the respective mounting portions 152,
162 which become aligned with the apertures 115 when the mounting portions are slid into the
channels, to thereby finally secure the mounting portions to the deck component 110.
It should be noted that the channels 118 on the bottoms of the respective side
portions 117 do not extend all the way between the first end 112f and the second end 112s.
Rather, the channel 118 on either side of the deck component extends all the way to the first
end 112f (as can be seen in Figure 20). However, the channels 118 on either side terminate
slightly before reaching the second end 112s (this can be seen in Figure 19). The reason why
the respective channels 118 terminate slightly before reaching the second end 112s is because
(in this embodiment) this is required in order to allow the diagonal portions 161 and the support
member engaging portions 164 of the respective offset hook components 160 to extend inwardly
(which they must do to be offset inwards). Also note though that, if the offset hook components
160 where instead connected to the first end 112f, then the channels 118 would need to
terminate slightly before the first end 112f instead, but in that case, the channels 118 could
extend all the way to the second end 112s.
Importantly, when the mounting portions 152, 162 of the respective hook
components 150, 160 are attached to the inside surfaces of the side portions 117 at their
respective ends, as described in the previous paragraph above, the result of this is that these
hook components 150, 160 (which are the panel’s first and second engaging formations in this
embodiment) consequently engage with the deck component 110, and when the panel is
installed, the hook components also engage with the relevant supporting members (support
struts) from almost (or as close as possible to) directly beneath, and almost (or as close as
possible to) within the same vertical plane as, each of the very outside straight sides 114 of the
deck component. Because the hook components 150, 160 (the first and second engaging
formations) support the deck component 110 at either end relative to their associated support
member (struts) from approximately directly vertically beneath each of the straight sides 114 of
the deck component, consequently even if a significant vertical impact or load is imposed on one
of the very outside edges or sides of the panel 100, the line of action of such force would
effectively extend through (or at least very close to) the location (in the horizontal/width direction
of the panel) where the hook components 150, 160 support the deck component. Therefore,
there would be no (or substantially no) space or distance in the horizontal/width direction of the
panel between the location where the force is applied (on the very outer side 114) and the
location where the support member(s) support the deck component 110. Consequently, it may
be that no (or substantially no) lever arm is created that would cause the panel to tip or tilt.
It is also important to note that the decking panel 100 in this embodiment may be
much more resistant to the kind of canting deformation (caused by impact loading on or near
one corner of the panel, as described above with reference to Figure 8) than the previously used
panels described above, because the deck component 110 in the present decking panel 100 is
made as a single piece, unitary part. Specifically, in the present embodiment the deck
component 110 is made from a single sheet of aluminium. As a result of this, even if the decking
panel 100 receives an end-on blow on one corner due to being dropped on one corner (or the
like), and even if this is sufficient to damage the hook component 150/160 on that corner,
nevertheless all that should be required is removal of the damaged hook component and
replacement thereof. This should not cause the kind of canting deformation of the rest of the
panel, as was the case for the previously used panels described above, because, unlike the
previously used panels which had a frame-like substructure supporting the surface
component(s) SC, in the panel 100 in the present embodiment, the component 110 is made from
a single sheet of material and is therefore inherently much more resistant to this kind of canting
deformation.
Furthermore, despite the advantages in terms of the robustness just described,
panels made in accordance with embodiments of the present invention like the embodiment
shown in Figures 9-20 may also be lighter than an equivalently dimensioned panel formed in the
manner of the previously used panels described above.
As mentioned above, in the decking panel 100 in Figures 9-20, there are holes that
are formed in/through, and which extend across, the majority of the area of the surface portion
116. More specifically, in this particular embodiment (and also in other embodiments shown in
other figures below), there are two sets of holes, namely a set of larger holes and a set of smaller
holes. Both sets of holes (i.e. both the larger holes and the smaller holes) are evenly distributed
across the surface portion 116. More specifically, both sets of holes are arranged in a pattern of
straight rows extending across the width dimension and straight columns extending along the
length dimension (i.e. in a grid pattern). The smaller holes are offset from the larger holes (i.e.
the grid pattern of small holes is offset from the grid pattern of larger holes), and the (grid of)
smaller holes is interspersed between and amongst the (grid of) larger holes.
The holes in the surface portion 116 serve a number of purposes. For one thing,
they help to reduce the amount of material in the deck component 110, thereby reducing the
weight of the deck component (and reducing the weight of the panel 100 overall). The holes may
also contribute to the rigidity of the deck component, or at least the inclusion of the holes (and
their size and relative arrangement) may be such that they do not significantly affect or reduce
the strength and rigidity of the deck component 110. The holes also help to provide gip. The
fact that the holes in this embodiment are all round/circular means that the respective holes all
have portions of their edges facing in all horizontal directions, and this in turn means that across
the surface portion 116 there are portions of the respective hole edges oriented in all horizontal
directions. Accordingly, the shape of the holes (round/circular in this embodiment) may help to
provide grip in all horizontal directions. It should be noted, however, that holes of other shapes
and sizes could also be used. The holes in the embodiment in Figures 9-20 are laser cut.
However, the holes may also be formed in other ways, such as by drilling or punching or the like,
and in fact explanation will be given below for a situation in which some (at least) of the holes
are punched.
The panel 100 in the embodiment in Figures 9-20 also includes a number of cross
bracing members 130. As shown in Figures in 11, 12 and 14, there happen to be three cross
bracing members 130 in this embodiment. All three extend across the space between the side
portions 117 beneath the surface portion 116, and all three are attached by rivets (or other
mechanical fasteners such as nuts, bolts, screws or the like) which are inserted through the
surface portion and through the upper flange of the cross bracing member 130 to secure cross
bracing member 130 in place on the underside of the deck component 110. In this embodiment
there is one cross bracing member 130 at either end of the panel, i.e. there is one cross spacing
member 130 at the first end 112f and another cross bracing member 130 at the second end
112s - this will generally (if not always) be the case for decking panels regardless of the length
and width of the decking panel. For decking panels, whether or not there are any further or
additional cross bracing members as well (i.e. any spanning the space between the side portions
117 at some location(s) along the length of the panel between the ends) will depend on the
length and width of the panel and the amount of additional cross bracing required. In the
embodiment in Figures 9-20, the length and width of the panel is such that a single additional
(i.e. a third) cross bracing member 130, which extends across between the sides 117 half way
between the ends of the panel, is sufficient. However, in other embodiments, a greater number
of cross bracing members may be required along the length of the panel (generally if the panel
is longer), or fewer (or even no) additional cross bracing members (i.e. other than those at the
two end) may be required if the panel is sufficiently strong and rigid without them.
From the foregoing, it will be appreciated that decking panels which are generally
similar to the decking panel in the embodiment in Figures 9-20 can be made but where the length
and width varies. For example, the decking panel in the embodiment shown in Figures 21-25 is
essentially the same as the decking panel in the embodiment shown in Figures 9-20. The main
difference is that the decking panel in the embodiment shown in Figures 21-25 is longer and
thinner (i.e. the deck component 210 is much longer in its horizontal length dimension and much
narrower in its horizontal width dimension) than in Figures 9-20. There are also a few other small
differences that flow as a result of this different shape of the deck component. For example, the
number of the smaller and larger holes in the grid arrangements (i.e. in each row and column)
of holes is consequently different (the size of the individual large and small holes are the same,
however). Also, the width of the cross bracing members 230 is much shorter in the embodiment
in Figures 21-25 (because the distance between the sides 217 is much smaller), but because
the deck component 210 is much longer, a greater number of cross bracing members 230 is
provided (i.e. there are four cross bracing members rather than three - one at each end and two
in between rather than one at each end and one in between). Aside from this, the decking panels
in the embodiments in Figures 9-20 and 21-25 are made and operate the generally the same
way.
The size (particularly the horizontal length and width) of the decking panel may
therefore be varied to suit. As an indication, it is contemplated that decking panels of the above
general kind may be produced in sizes combining one of the lengths listed below with one of the
widths listed below:
Length (mm) Width (mm)
600 250
900 300
1200 600
1500
1800
2400
However, it will of course be appreciated that decking panels having a length or width
not necessarily corresponding to any of the specific lengths and widths listed above may also
be made.
Turning now to Figures 26-37A, these figures contain various views of a panel 300
in accordance with one possible embodiment of the invention. The panel 300 in the embodiment
in Figures 26-37A is an access panel. The distinction between decking panels and access
panels is explained above.
The access panel 300 is suitable for installation to form a platform or part of a
platform in a void of a building structure. Whilst not shown in Figures 26-37A, it will be
appreciated that the panel 300 is operable to extend between (and span the space between) a
first support member (e.g. like one of the support struts XX in Figure 1) and a second support
member (e.g. like the other of the support struts XX in Figure 1) where both of the support
members extend across at least a portion of the void.
The various parts that make up the panel 300 in the embodiment in Figures 26-37A
are perhaps best shown in the exploded view in Figures 35-37. As can be seen from these
figures, and from Figures 26-37A generally, the access panel 300 includes a deck component
310. The deck component has opposed ends, one of which will be referred to as the first end
312f and the other of which will be referred to as the second end 312s.
In addition to having the opposed first and second ends 312f and 312s, the deck
component 310 also has a pair of opposed, substantially straight sides 314. The sides 314 both
extend from the first end 312f to the second end 312s. The deck component 310 further includes
a substantially planar surface portion 316. The surface portion 316 (or the upper surface thereof
which is upwardly-facing when the panel 300 is installed and in use) forms part of the working
surface of the panel 300, and hence part of the working surface of the platform or part of the
platform formed by the panel in this embodiment. At the first end 312f, the surface portion 316
in this embodiment extends between the opposed sides 314 in the panel’s width direction, and
in the panel’s length direction the surface portion 316 extends from the first end 312f towards
the second end 312s until it reaches (and terminates at) an access opening 319. Specifically,
in the panel’s length direction the surface portion 316 extends from the first end 312f towards
the second end 312s until it reaches (and terminates at) the (transverse) edge of the access
opening 319 which is closest to the first end and which extends between the sides of the deck
component 310. There is also a hatch door 320 which can be closed to cover, and opened to
uncover, the access opening 319. This will be discussed further below. The panel’s ladder top
receiving opening 319a, which is located directly adjacent the access opening 319 (in fact the
ladder top receiving opening 319a is only separated from the access opening 319 by one of the
cross bracing members 330), will also be discussed further below.
The panel 300 also includes first engaging formations, which in this embodiment
take the form of a pair of offset hook components 360. (Note that, in other embodiments, the first
engaging formations could take a wide range of other forms or configurations.) The offset hook
components 360 are operable to engage with a first support member (e.g. like one of the support
struts XX in Figure 1) to support the deck component 310 relative to that first support member.
The panel 300 also includes second engaging formations, which in this embodiment take the
form of a pair of straight hook components 350. (Note that, in other embodiments, the second
engaging formations could also take a wide range of other forms or configurations.) The straight
hook components 350 are operable to engage with a second support member (e.g. like the other
of the support struts XX in Figure 1) to support the deck component 310 relative to that second
support member. The offset hook components 360 (which are the first engaging formations in
this embodiment), and the straight hook components 350 (which are the second engaging
formations in this embodiment), are the same as the offset hook components 160 and straight
hook components 150 described above. The way in which, and the location at which, these
connect to the deck component 310 is also the same as above.
The deck component 310 of the panel also has a planar side portion 317 on both
sides. The side portions 317 both extend (or depend) vertically downward from the respective
sides 314 of the deck component 310. (Note that, in this embodiment, the sides 314 of the deck
component 310 are not simply equivalent to the sides of the surface portion 316, because the
surface portion 316 does not extend all the way from the first end 312f to the second end 312s
but the sides 314 do). Both of the side portions 317 extend for the full length of the deck
component 310 (i.e. from the first end 312f to the second end 312s) and both of the side portions
317 are oriented perpendicular to the plane of the surface portion 316.
The entire deck component 310 (i.e. including the surface portion 316 and the two
side portions 317) is formed as a single piece, unitary component. More specifically, the entire
deck component 310 is formed by roll forming and/or folding a single piece (or a single section
or a single length) of aluminium alloy sheet. (Note that the holes that are formed in and extend
across the majority of the area of the surface portion 316 are formed as a separate step or
operation from the roll forming and/or folding operation that gives the deck component 310 its
overall shape. Likewise, the step of removing material from the deck component 310 to create
the space for the access opening 319 and the ladder top receiving opening 319a (for example
by laser cutting or other form of material removal technique) is also separate from the operation
of roll forming and/or folding that gives the deck component 310 its overall shape.) The thickness
of the aluminium alloy sheet from which the deck component is made may be varied according
to the different strength and/or rigidity requirements that may exist in different applications.
However, in the embodiment shown, the aluminium sheet has a thickness of 3 mm, and this is
sufficient to provide the required strength and rigidity. Note also that, whilst the material used to
form the deck component in this embodiment is aluminium alloy sheet, sheet of other kinds of
metal (e.g. different grades of steel or the like) may also be used.
Also, as in the decking panel embodiments above, the lower long side edge of each
of the side portions 317 is “folded under” inwards so as to form a small, upwardly-opening
channel 318 extending along on the inside at the bottom of each of the side portions 317. These
channels 318 serves the same purposes as described above.
Therefore, as in the decking panel embodiments above, when the mounting portions
352, 362 of the respective hook components 350, 360 are attached to the inside surfaces of the
side portions 317 at their respective ends, the result of this is that these hook components 350,
360 (which are the panel’s second and first engaging formations in this embodiment)
consequently engage with the deck component 310 and also (when the panel 300 is in use) with
the relevant supporting members (support struts) from almost (or as close as possible to) directly
beneath, and almost (or as close as possible to) within the same vertical plane as, each of the
very outside straight sides 314 of the deck component. Because the hook components 350, 360
(the second and first engaging formations) support the deck component 310 at either end relative
to their associated support member (struts) from approximately directly vertically beneath each
of the straight sides 314 of the deck component, consequently even if a significant vertical impact
or load is imposed on one of very outside edges or sides of the panel 300, the line of action of
such force would effectively extend through (or at least very close to) the location (in the
horizontal/width direction of the panel) where the hook components 350, 360 support the deck
component. Therefore, there would be no (or substantially no) space or distance in the
horizontal/width direction of the panel between the location where the force is applied (on the
very outer side 314) and the location where the support member(s) support the deck component
310. Consequently, it may be that no (or substantially no) lever arm is created that would cause
the panel to tip or tilt.
As mentioned above, in the access panel 300, there are holes that are formed
in/through, and which extend across, the majority of the area of the surface portion 316 and also
the hatch door 320. More specifically, in both the surface portion 316 and the hatch door 320,
there are two sets of holes, namely a set of larger holes and a set of smaller holes. Both sets of
holes (i.e. both the larger holes and the smaller holes) are evenly distributed across the surface
portion 316 and the hatch door 320. Both sets of holes are arranged in a pattern of straight rows
extending across the width dimension and straight columns extending along the length
dimension (i.e. in a grid pattern). The smaller holes are offset from the larger holes (i.e. the grid
pattern of small holes is offset from the grid pattern of larger holes), and the (grid of) smaller
holes is interspersed between and amongst the (grid of) larger holes. The holes in the surface
portion 316 and the hatch door 320 serve the same purposes as described above.
The panel 300 also includes a number of cross bracing members 330. As shown in
Figure 35, there happen to be four cross bracing members 330 in this embodiment. All four
extend across the space between the side portions 317 beneath the surface portion 316, and all
four are attached by rivets (or other mechanical fasteners such as nuts, bolts, screws or the like)
which are inserted through the surface portion and through the upper flange of the cross bracing
member 330 to secure cross bracing member 330 in place on the underside of the deck
component 310. In this embodiment, there is one cross bracing member 330 at or near either
end of the panel, i.e. there is one cross spacing member 330 at the first end 312f and another
cross bracing member 330 which is near (if a bit back from and not right at) the second end
312s. There are also two cross bracing members 330 associated with the access opening and
hatch door. More specifically, as best shown in Figure 35, there is a cross bracing member 330
which is attached directly below (or below and very close to) the edge where the surface portion
316 terminates at the access opening 319. There is also another cross bracing member 330
which extends across between the side portions 317 at a longitudinal location beneath where
the opposed edge of the hatch door 320 is when the hatch door is closed to cover the access
opening 319. The space between this cross bracing member 330, and the cross bracing member
330 closest to the second end 312s (and the gap/opening above and between these two cross
bracing members 330), forms the ladder top receiving opening 319a. Further, there are a pair of
longitudinal bracing members 380 which extend between the middle two cross bracing members
330.These longitudinal bracing members 380 are associated with the edges of the access
opening 319 and hatch door 320. Together, the two middle cross bracing members 330
associated with the edges of the access opening 319 and hatch door 320, and the two
longitudinal bracing members 380 that extend between them, provide additional rigidity to
support the hatch door when it is in the closed position (flush with the surface portion 316, as
shown in Figures 26-34) to cover the access opening 319. These two middle cross bracing
members 330 associated with the edges of the access opening 319 and hatch door 320, and
the two longitudinal bracing members 380 that extend between them, also provide additional
rigidity for the decking component 310 when the hatch door is removed/opened.
Next, note that although the exploded views in Figures 35-37 appear to suggest that
that the hatch door 320 is completely separable from the deck component 310 to open the
access opening 319 (i.e. these figures appear to suggest that the hatch door 320 is removable
in the manner of a manhole cover or the like), although this is possible, this is not usually the
way in which the hatch door 320 cover will be opened to allow access to the access opening
319. Rather, the hatch door 320 cover will normally be opened in the manner depicted in Figure
37A. As Figure 37A shows, the hatch door 320 will normally be hingedly connected to one of the
sides of the deck component 310 so that the hatch door can be opened and closed relative to
the access opening 319 by pivoting about the hinge(s). It will be noted from several of the Figures
that hatch door 320 has two pairs of holes 321 on one side. These holes are intended to allow
a pair of hinges to be connected to that side of the hatch door 320. However, it will also be noted
that there are four pairs of holes 311 on the deck component, or more accurately, two pairs of
holes 311 on one side of the deck component 310 and two pairs of holes 311 on the other side
of the deck component 310. By providing two pairs of holes on each side of the deck component
310, it will be appreciated that the hinges connected to hatch door 320 can be attached to either
one side, or the other side, of the deck component 310. Accordingly, the hatch door 320 can be
hingedly connected to one side of the deck component 310, or rotated 180° and hingedly
connected to the other side of the deck component, depending on which way that hatch door
320 is required (or preferred) to swing open in a particular situation. It should also be noted that
one or more holes 322 are provided on the opposite side of the hatch door 320 from the hinge
connection holes 321. The hole(s) 322 are to facilitate the connection of a handle or the like
which can be grasped to raise and lower the hatch door to open and close it.
For access panels, whether or not there are any further or additional cross bracing
members 330 (i.e. any other than those mentioned above and shown in figures 26-37A) will
depend on the length and width of the panel and the amount of additional cross bracing required.
In the embodiment in Figures 26-37A, the length and width of the panel is such that no further
cross bracing members 330 (i.e. other than those mentioned above) are needed. However, in
other embodiments, a greater number of cross bracing members may be required along the
length of the panel (generally if the panel is longer).
From the foregoing, it will be appreciated that access panels which are generally
similar to the access panel in the embodiment in Figures 26-37A can be made but where the
length (and possibly also the width) varies. For example, the access panel in the embodiment
shown in Figures 38-42 is essentially the same as the access panel in the embodiment shown
in Figures 26-37A. The main difference is that the access panel in the embodiment shown in
Figures 38-42 is longer (i.e. the deck component 410 is much longer in its horizontal length
dimension) than in Figures 26-37A. There are also a few other small differences that flow as a
result of this different length of the deck component. For example, the number of the smaller and
larger holes in the grid arrangements (i.e. in each column) of holes is consequently different (the
size of the individual large and small holes are the same, however). Also, because the deck
component 410 is much longer, a greater number of cross bracing members 430 is provided
(i.e. there are six cross bracing members rather than four). Aside from this, the access panels in
the embodiments in Figures 26-37A and 38-42 are made and operate generally the same way.
Turning to Figures 43-45, these show a variant of the hatch door, i.e. a slightly
different hatch door to the ones shown on the access panels in the embodiments in Figures 26
and 38. The difference between the hatch door shown in Figures 43-45 and the hatch doors
shown in the embodiments in Figures 26 and 38 above is that, in the hatch doors 320/420 in
those earlier access panel embodiments, the holes therein were all formed by laser cutting (or
perhaps by drilling), and as a result no portions or edges of the holes were raised relative to the
upper surface of the hatch door. In contrast, in the variant hatch door shown in Figures 43-45,
the small holes are still later cut (or perhaps drilled) and do not have any raised portions, but the
larger holes are formed by punching from below. As a consequence, for each of the larger holes,
a raised rim is formed which projects vertically upwards from the upper surface of the hatch door.
These raised rims may help to increase the rigidity of the surface, and also improve grip. Creating
these raised holes using a method other than punching from below is also contemplated.
It should also be noted that whilst Figures 43-45 depict larger holes in a hatch door
which have been formed so as to be raised, the same could also be done in the surface portion
of the deck component in any embodiments of the (decking or access) panels described above
or below.
Figures 46-50 show a plug which may be used, for example, to secure a link panel
between a pair of adjacent panels, e.g. between a pair of adjacent panels. By way of further
explanation, when a platform is created in a void in a building using two or more panels, both of
which extends between a pair of support members spanning the void, there may sometimes be
a space between the two panels (e.g. if for some reason the two panels cannot be pushed
directly together or installed directly side-by-side in contact with one another). In such cases, the
space between the two panels may be spanned (i.e. covered so as to extend the platform surface
over the gap between the two panels) by a link panel. The link panel may have holes, for
example, an arrangement of holes similar to the arrangement holes in the surface portions of
the panels themselves. In order to secure such a link panel across the space between the other
two panels, the link panel may be positioned so that portions of it extend over the top of the
surface portion of each of the other two panels, and so that at least some of the holes in the link
panel are aligned with correspondingly sized holes in each of the other panel. Once the link
panel has been positioned on top of the other two panels (and spanning the gap between them)
as described above, plugs like the one shown in Figures 46-50 may be inserted into one or more
(or all) of the holes in the link panel which are aligned with holes in the first panel and through
into the aligned holes in the first panel, and plugs may also be inserted into one or more (or all)
of the holes in the link panel which are aligned with the holes in the second panel and through
into the aligned holes in the second panel. Thus, the plugs may secure the link panel to, and
between, the first and second panels.
Plugs like the one shown in Figures 46-50 may also be used for other purposes. For
example, in some embodiments it may be possible for hinges attached to the hatch door of an
access panel to be secured to one side or other of the panel’s deck component using the plugs
(although such plugs used for this purpose may need to be smaller than plugs that are size to
be used to connect a link panel between a pair of adjacent panels as described above - this is
because the holes by which the hinges are connected will typically be smaller). Because the
plugs are made from injection moulded plastic, they may be comparatively easily removed,
which may enable the side of the panel’s deck component to which the hatch door is hinges the
connected to be switched if needed.
Turning now to Figures 51-65, these figures contain various views of a panel 500 in
accordance with another possible embodiment of the invention. The panel 500 in Figures 51-
65 is again an access panel. The distinction between decking panels and access panels is
explained above.
Like the access panel 300 above, access panel 500 is suitable for installation to form
a platform or part of a platform in a void of a building structure. Whilst not shown in Figures 51-
65, the panel 500 (like the access panel 300 above) is operable to extend between (and span
the space between) a first support member (e.g. like one of the support struts XX in Figure 1)
and a second support member (e.g. like the other of the support struts XX in Figure 1) where
both of the support members extend across at least a portion of the void.
The various parts that make up the panel 500 are perhaps best shown in the
exploded view in Figures 60-62. As can be seen from these figures, and from Figures 51-65
generally, the access panel 500 includes a deck component 510. The deck component has
opposed ends, one of which will be referred to as the first end 512f and the other of which will
be referred to as the second end 512s.
In addition to having the opposed first and second ends 512f and 512s, the deck
component 510 also has a pair of opposed, substantially straight sides 514. The sides 514 both
extend from the first end 512f to the second end 512s. The deck component 510 in this
embodiment further includes two substantially planar surface portions, namely 516f (which is a
planar surface portion of the deck component located generally at the first end 512f) and 516s
(which is a planar surface portion of the deck component located generally at the second end
512s). The surface portions 516f and 516s (or the upper surfaces thereof which are upwardly-
facing when the panel 500 is installed and in use) form part of the working surface of the panel
500, and hence part of the working surface of the platform or part of the platform formed by the
panel 500. At the first end 512f, the surface portion 516f in this embodiment extends between
the opposed sides 514 in the panel’s width direction, and in the panel’s length direction the
surface portion 516f extends from the first end 512f towards the second end 512s until it reaches
(and terminates at) an access opening 519. Specifically, in the panel’s length direction, the
surface portion 516f extends from the first end 512f towards the second end 512s until it reaches
(and terminates at) the transverse edge of the access opening 519 which is closest to the first
end and which extends between the sides of the deck component 510. At the second end 512s,
the surface portion 516s in this embodiment also extends between the opposed sides 514 in the
panel’s width direction, and in the panel’s length direction, the surface portion 516s extends from
the second end 512s back towards the first end 512f until it reaches (and terminates at) the
transverse edge of the access opening 519 which is closest to the second end 512s and which
extends between the sides of the deck component 510. There is also a hatch door 520 which
can be closed to cover, and opened to uncover, the access opening 519.
The panel 500 also includes first engaging formations, which in this embodiment
take the form of a pair of offset hook components 560. (Note that, in other embodiments, the first
engaging formations could take a wide range of other forms or configurations.) The offset hook
components 560 are operable to engage with a first support member (e.g. like one of the support
struts XX in Figure 1) to support the deck component 510 relative to that first support member.
The panel 500 also includes second engaging formations, which in this embodiment take the
form of a pair of straight hook components 550. (Note that, in other embodiments, the second
engaging formations could also take a wide range of other forms or configurations.) The straight
hook components 550 are operable to engage with a second support member (e.g. like the other
of the support struts XX in Figure 1) to support the deck component 510 relative to that second
support member. The offset hook components 560 (which are the first engaging formations in
this embodiment), and the straight hook components 550 (which are the second engaging
formations in this embodiment), are the same as the offset hook components 160 and straight
hook components 150 described above. The way in which, and the location at which, these
connect to the deck component 510 is also the same as above.
The deck component 510 of the panel also has a planar side portion 517 on both
sides. The side portions 517 both extend (or depend) vertically downward from the respective
sides 514 of the deck component 510. (Note that, in this embodiment, the sides 514 of the deck
component 510 are not simply equivalent to the sides of the surface portions 516f and 516s,
because neither of the surface portions 516f and 516s extend all the way from the first end 512f
to the second end 512s, but the sides 514 of the deck component do). Both of the side portions
517 extend for the full length of the deck component 510 (i.e. from the first end 512f to the second
end 512s) and both of the side portions 517 are oriented perpendicular to the plane of the surface
portions 516f and 516s (which are coplanar).
The entire deck component 510 (i.e. including the surface portions 516f and 516s
and the two side portions 517) is formed as a single piece, unitary component. More specifically,
the entire deck component 510 is formed by roll forming and/or folding a single piece (or a single
section or a single length) of aluminium alloy sheet. (Note that the holes that are formed in and
extend across the majority of the area of both of the surface portions 516f and 516s are formed
as a separate step or operation from the roll forming and/or folding operation that gives the deck
component 510 its overall shape. Likewise, the step of removing material from the deck
component 510 to allow for the formation of the access opening 519 (for example by laser cutting
or other form of material removal technique) is also separate from the operation of roll forming
and/or folding that gives the deck component 510 its overall shape.) The thickness of the
aluminium alloy sheet from which the deck component is made may be varied according to the
different strength and/or rigidity requirements that may exist in different applications. However,
in the embodiment shown, the aluminium sheet has a thickness of 3 mm, and this is sufficient to
provide the required strength and rigidity. Note also that, whilst the material used to form the
deck component in this embodiment is aluminium alloy sheet, sheet of other kinds of metal (e.g.
different grades of steel or the like) may also be used.
Also, as in the other decking panel and access panel embodiments above, the lower
long side edge of each of the side portions 517 is “folded under” inwards so as to form a small,
upwardly-opening channel 518 extending along on the inside at the bottom of each of the side
portions 517. These channels 518 serves the same purposes as described above.
Therefore, as in the other decking panel and access panel embodiments above,
when the mounting portions 552, 562 of the respective hook components 550, 560 are attached
to the inside surfaces of the side portions 517 at their respective ends, the result of this is that
these hook components 550, 560 (which are the panel’s second and first engaging formations
in this embodiment) consequently engage with the deck component 510, and when the panel
500 is in use, the hook components 550, 560 also engage with the relevant supporting members
(support struts) from almost (or as close as possible to) directly beneath, and almost (or as close
as possible to) within the same vertical plane as, each of the very outside straight sides 514 of
the deck component. Because the hook components 550, 560 (the second and first engaging
formations) support the deck component 510 at either end relative to their associated support
member (struts) from approximately directly vertically beneath each of the straight sides 514 of
the deck component, consequently even if a significant vertical impact or load is imposed on one
of the very outside edges or sides of the panel 500, the line of action of such force would
effectively extend through (or at least very close to) the location (in the horizontal/width direction
of the panel) where the hook components 550, 560 support the deck component. Therefore,
there would be no (or substantially no) space or distance in the horizontal/width direction of the
panel between the location where the force is applied (on the very outer side 514) and the
location where the support member(s) support the deck component 510. Consequently, it may
be that no (or substantially no) lever arm is created that would cause the panel to tip or tilt.
As above, in the access panel 500, there are holes that are formed in/through, and
which extend across, the majority of the area of the surface portions 516f and 516s. More
specifically, there are two sets of holes, namely a set of larger holes and a set of smaller holes.
Both sets of holes (i.e. both the larger holes and the smaller holes) are evenly distributed across
both of the surface portions 516f and 516s. Both sets of holes are arranged in a pattern of straight
rows extending across the width dimension and straight columns extending along the length
dimension (i.e. in a grid pattern). The smaller holes are offset from the larger holes (i.e. the grid
pattern of small holes is offset from the grid pattern of larger holes), and the grid of smaller holes
is interspersed between and amongst the grid of larger holes. The holes in the surface portions
serve the same purposes as described above.
The panel 500 also includes a pair of cross bracing members 530, which are the
same as the cross bracing members 330 described above. The panel 500 further includes a
ladder bracing member 535 which is different to any of the cross bracing members described
above. The two cross bracing members 530 extend across the space between the side portions
517 beneath the surface portion 516f. The ladder bracing member 535 extend across the space
between the side portions 517 beneath the surface portion 516s. The two cross bracing
members 530, and also the ladder bracing member 535, are attached by rivets (or other
mechanical fasteners such as nuts, bolts, screws or the like) which are inserted through the
relevant surface portion and through an upper flange of the cross bracing member 530 or ladder
bracing member 535 to secure cross bracing member 530 or ladder bracing member 535 in
place on the underside of the deck component 510.
In this embodiment, one of the cross bracing members 530 is at the first end 512f.
The other cross bracing member 530 is associated with the access opening and hatch door.
More specifically, as best shown in Figure 54 and 56, the second of the cross bracing members
530 is attached directly below (or below and very close to) the edge where the surface portion
516f terminates at the access opening 519. On the opposite side of the access opening 519, the
ladder bracing member 535 extends across between the side portions 517 at a longitudinal
location beneath where the surface portion 516s terminates at the access opening 519. Thus,
the second of the cross bracing members 530, and the ladder bracing member 535, which are
associated with the respective opposed transverse edges of the access opening 519, and the
two longitudinal bracing members 580 that extend longitudinal between them, provide additional
rigidity to support the hatch door when it is in the closed position (flush with the surface portions
516f and 516s) to cover the access opening 519.
It should be noted that there are a number of differences between the cross bracing
members 530 and the ladder bracing member 535. As mentioned above, the cross bracing
members 530 are the same as the cross bracing members 330 and 130 used in other
embodiments above. However, the ladder bracing member 535 is different in a number of
respects. One difference is that there are two slots 536 formed in the upper flange portion of the
ladder bracing member 535. As can be seen from e.g. Figures 54, 60 and 64-65, when the
access panel 500 is assembled with the ladder bracing member 535 located beneath the
transverse edge of the access opening 519 which is closest to the second end 512s, the two
slots 536 in the upper flange of the ladder bracing member 535 are aligned with a pair of
correspondingly sized and shaped slots 513 formed into the surface portion 516s. The slots 513
are effectively extensions of the access opening 519 which are indented or extend in the
longitudinal direction into the surface portion 516s. Another difference between the ladder
bracing member 535 and the cross bracing members 530/330/130 is that, whereas each of the
cross bracing members 530 (and 330 and 130) have an upper/horizontal flange portion that joins
to a lower/vertical web portion at a right angle, in comparison with this, the ladder bracing
member 535 has an upper/horizontal flange portion (with the slots 536 therein) which joins to a
lower web portion at an angle slightly off 90°. As a result, when the panel 500 is assembled and
installed in a void (in a horizontal orientation), the lower web portion of the ladder bracing
member 535 is orientated at an angle slightly off vertical. The reason for this will be described
below.
Figures 64 and 65 further show that there is a ladder clamping member 537 which
can be detached from (see Figure 64) and attached to (see Figure 65) the ladder bracing
member 535. As shown in Figures 64 and 65, the ladder clamping member 537 has a pair of
holes therein, and when the ladder clamping member 537 is attached to the ladder bracing
member 535 (as shown in Figure 65), a pair of threaded rods associated with the ladder bracing
member 535 (or the threaded shaft of a pair of bolts extending through the ladder bracing
member 535) also extend through the pair of holes in the ladder clamping member 537.
Therefore, nuts can be screwed onto each of these threaded shafts in order to firmly secure the
ladder clamping member 537 to the ladder bracing member 535. The ladder clamping member
537 helps to secure a ladder relative to the panel 500 in a manner that will now be described.
Recall that the access panel 500 will be used to form part of the working surface of
a platform installed in a void in a building at an elevated height. Therefore, there will often be a
need for workers to gain access to the elevated platform from below. In the previous embodiment
of the access panel 300 above, a worker could position a ladder so that the upper end of the
ladder extended through the ladder top receiving opening 319a and leaned against the cross
bracing member 330 closest to the second end 312s (and with the bottom end of the ladder
resting on the ground or floor below). The worker could then ascend the ladder, open the access
door 320 from below (once they have climbed far enough up the ladder to do so), and then climb
through the access opening 319 to gain access to the platform before closing the hatch door
320. Whilst this is a workable means for enabling a worker to gain access to the elevated
platform from below, there are still a number of potential hazards associated with this. For one
thing, the upper end of the ladder simply extends through the ladder top receiving opening 319a
in the access platform 300, and the ladder simply rests against the cross bracing member 330
which is closest to the second end 312s. However, with the ladder simply resting against this
cross bracing member300, there would be nothing to stop the top of the ladder from sliding from
side to side in the transverse direction (i.e. in a direction across the width of the panel).
Therefore, with the arrangement used in the access panel 300, there is a possibility that the
ladder could wobble from side to side. Also, with the arrangement used in the access panel 300,
if (for example) the bottom of the ladder were to slip on the floor below, there would be nothing
to prevent the ladder from simply sliding down and out of the ladder top receiving opening 319a,
and if a worker is on the ladder when this happens, this could lead to serious injury (as the ladder
(with the worker on it) crashes to the floor below). Another issue associated with the configuration
of the access panel 300 is that, upon reaching the top of the ladder (and after opening the access
door 320), in order to gain the elevated platform through the access opening 319, the worker
needs to reach/step/climb over the cross bracing member 330 that separates the access
opening 319 from the ladder top receiving opening 319a. This may add somewhat to the difficulty
of ascending the ladder and gaining the platform, which may add to the potential danger,
particularly if the worker is carrying or burdened with tools, building materials, or like, while trying
to ascend the ladder and gain the platform.
The configuration of the access panel 500 may help to reduce some of the dangers
associated with the access panel 300 just described. For instance, with the access panel 500,
when it is required to install a ladder to facilitate access to the platform from below, the first step
is to detach the ladder clamping member 537, as shown in Figure 64. Then, the upper end of
the ladder can be extended into and through the access opening 519. After that, the ladder can
be leaned against the transverse edge of the access opening 519 that is supported by the ladder
bracing member 535. When this is done, the longitudinal siderails of the ladder insert snugly into
the respective slots 513 in the surface portion 516s (and also into the respective slots 536 in the
ladder bracing member 535). Once the ladder is correctly positioned with its siderails fitted into
the slots 513 (and 536) and also with the bottom end of the ladder in contact with the ground/floor
below, the ladder clamping ember 537 can be reattached to the ladder bracing member 535.
Figure 65 shows the ladder clamping member 537 attached to the ladder bracing member 535.
However, Figure 65 does not show a ladder in position when the clamping member 537 is
secured to the ladder bracing member 535. Nevertheless, it will be appreciated from Figure 65
that, when a ladder is installed with its side rails received in the slots 513 (and 536), reinstalling
the clamping member 537 thereafter and securing the clamping member 537 in place (by way
of nuts (or wing nuts of the like) screwed onto the threaded bolts) will secure the ladder relative
to the panel 500, thus securing the ladder in position (i.e. securing it against sideways or
longitudinal movement). Securing the ladder in this way also helps to alleviate the danger of the
ladder sliding down and out of the access opening 519 and falling away from below the platform
while the hatch door is open (as was a danger with the access panel 300 described above). This
is because, with the clamping member 537 securing the ladder in place, the ladder also cannot
slide vertically out of engagement with the panel 500. At worst, the ladder may slide a short
distance, but only until the first rung of the ladder which is located above the level of the platform
(i.e. above the level of the surface portion 516s) collides with the part of the surface portion 516s
which extends between the slots 513. However, once that rung of the ladder hits the part of the
surface portion 516s that extends between the slots 513, the rung cannot then pass through or
around this part of the surface portion 516s (because of the way the siderails of the ladder are
clamped into the slots 513 by the clamping member 537), so this prevents the ladder from sliding
any further downward. Therefore, perhaps the worst a worker might experience is a jolt if the
ladder slides downward by this small amount while the worker is ascending the ladder. The
ladder will, however, be prevented from sliding down and out of engagement with the
panel/platform and crashing to the ground with the worker on it.
It should also be noted that, as mentioned above, the angle of the lower web portion
of the ladder bracing member 535 is oriented slightly off vertical. In fact, the angle of the lower
web portion of the ladder bracing member 535 (when the access panel 500 is fully assembled
and installed horizontally as part of a platform in a void) is oriented at an angle which
corresponds to a safe angle for a ladder to be installed at, and for workers to ascend and
descend the ladder safely. Therefore, when the ladder is secured firmly relative to (clamped
against) the ladder bracing member 535, the siderails of the ladder are pressed firmly against
the (slightly off vertical) web portion of the bracing member 535. This causes the ladder to be
forced into an orientation (i.e. the ladder assumes an angle) which is the same as the angle of
orientation of the (slightly off vertical) web portion of the bracing member 535. And, because the
angle of the web portion of the bracing member 535 is an angle at which a ladder can be installed
in order to be safely ascended and descended by workers, the configuration of the bracing
member 535 consequently helps to ensure that the ladder is installed (and secured) at a safe
angle of inclination for use.
It should also be noted that, when the ladder is installed and secured relative to the
panel 500, as described above, the fact that the siderails of the ladder are secured within the
slots 513 (and 536) ensures that the latter is prevented from wobbling in the sideways of
transverse direction.
Another thing to note is that the shape of the hatch door 520 (and consequently the
size of the access opening 519) in the access panel 500 is slightly different to the shape of the
access door 320 (and access opening 319) in the access panel 300. More specifically, the hatch
door 520 (and access opening 519) in the access panel 500 extends further (i.e. is larger) in the
panel’s longitudinal direction than the hatch door 320 (and access opening 319) of the access
panel 300. This slightly larger hatch door 520/access opening 519 has the benefit of providing a
larger opening for workers to pass through as they climb up or down through the access opening
519. This may be useful, for example if the worker is carrying or burdened with tools, or carrying
or burdened with building materials, or the like, as the larger size of the of the opening may make
it easier for the worker to pass up or down through the opening, or prevent any tools or materials
(et cetera) being carried by the worker from catching on the edges of the opening.
Next, note that although the exploded views in Figures 60-62 appear to suggest that
that the hatch door 520 is completely separable from the deck component 510 to open the
access opening 519 (i.e. these figures appear to suggest that the hatch door 520 is removable
in the manner of a manhole cover or the like), although this is possible, this is not usually the
way in which the hath door 520 will be opened to allow access through the access opening 319.
Rather, the hatch door 520 will normally be opened in the manner depicted in Figure 63. As
Figure 63 shows, the hatch door 520 will normally be hingedly connected to one of the sides of
the deck component 510 so that the hatch door can be opened and closed relative to the access
opening 519 by pivoting about the hinge(s). It will be noted from several of the Figures that hatch
door 520 has two pairs of holes 521 on one side. These holes are intended to allow a pair of
hinges (not shown) to be connected to that side of the hatch door 520. However, it will also be
noted that there are four holes 511 on the deck component, or more accurately two holes 511
on one side of the deck component 510 and two holes 511 on the other side of the deck
component 510. By providing two holes on either side of the deck component 510, it will be
appreciated that the hinges connected to hatch door 520 can be attached to either one side, or
the other side, of the deck component 510. Accordingly, the hatch door 520 can be hingedly
connected to one side of the deck component 510, or rotated 180° and hingedly connected to
the other side of the deck component, depending on which way that hatch door 520 is required
(or preferred) to swing open in a particular situation. It should also be noted that one or more
holes 522 are provided on the opposite side of the hatch door 520 from the hinge connection
holes 521. The hole(s) 522 are to facilitate the connection of a handle or the like which can be
grasped to raise and lower the hatch door to open and close it.
For access panels, whether or not there are any further or additional cross bracing
members 330 (i.e. any other than those mentioned above) will depend on the length and width
of the panel and the amount of additional cross bracing required. In the embodiment in Figures
51-65, the length and width of the panel is such no further cross bracing members 530 (i.e. other
than those mentioned above) are needed. However, in other embodiments, a greater number of
cross bracing members may be required along the length of the panel (generally if the panel is
longer).
In the present specification and claims (if any), the word ‘comprising’ and its
derivatives including ‘comprises’ and ‘comprise’ include each of the stated integers but does not
exclude the inclusion of one or more further integers.
Reference throughout this specification to ‘one embodiment’ or ‘an embodiment’
means that a particular feature, structure, or characteristic described in connection with the
embodiment is included in at least one embodiment of the present invention. Thus, the
appearance of the phrases ‘in one embodiment’ or ‘in an embodiment’ in various places
throughout this specification are not necessarily all referring to the same embodiment.
Furthermore, the particular features, structures, or characteristics may be combined in any
suitable manner in one or more combinations.
In compliance with the statute, the invention has been described in language more
or less specific to structural or methodical features. It is to be understood that the invention is
not limited to specific features shown or described since the means herein described comprises
preferred forms of putting the invention into effect. The invention is, therefore, claimed in any of
its forms or modifications within the proper scope of the appended claims (if any) appropriately
interpreted by those skilled in the art.
Claims (48)
1. A panel suitable for installation to form a platform or part of a platform in a void of a building structure, the panel being operable to extend between a first support member and a second support member where both support members extend across at least a portion of the void, the panel having: a deck component with: a first end and a second end opposite the first end; a pair of opposed, substantially straight sides each extending from the first end to the second end; and a substantially planar surface portion which extends: between the opposed sides at the first end, and from the first end at least part of the way, but not necessarily all the way, to the second end; and one or more first engaging formations at the first end of the deck component and operable to engage with the first support member to support the deck component relative to the first support member, and one or more second engaging formations at the second end of the deck component and operable to engage with the second support member to support the deck component relative to the second support member, wherein at least one out of the first and second engaging formation(s) is/are configured to support the relevant end of the deck component relative to the relevant support member from approximately directly vertically beneath, and/or from approximately within vertical planes containing, each of the straight sides of the deck component.
2. A panel as claimed in claim 1, wherein the first and the second engaging formation(s) are each configured to support their respective ends of the deck component relative to the respective support members from approximately directly vertically beneath, and/or from approximately within vertical planes containing, each of the straight sides of the deck component.
3. A panel as claimed in claim 1 or 2, wherein the deck component further includes a side portion, the side portion extending at least partly along one of the sides of the deck component.
4. A panel as claimed in claim 3, wherein the deck component includes side portions on either side of the deck component, the side portion(s) on each side extending at least partly along the side.
5. A panel as claimed in claim 4, wherein there is a single side portion on each side of the deck component, and on each side of the deck component the side portion extends substantially along the whole side from the first end to the second end.
6. A panel as claimed in claim 5, wherein when the panel is in use supported by the support members, the surface portion of the deck component is substantially horizontal, and the side portions are formed so that in use they extend (or depend) relatively at least somewhat downwardly from the sides of the deck component.
7. A panel as claimed in claim 6, wherein the side portions are formed so that they extend (or depend) downward from the sides of deck component substantially perpendicular to the surface portion.
8. A panel as claimed in any one of claims 4-7, wherein each of the side portions is integral with the surface portion of the deck component.
9. A panel as claimed in claim 8, when claim 8 is read as dependent on claim 6 or 7, wherein the surface portion and the side portions of the deck component are formed as a single, unitary component from a single piece of material.
10. A panel as claimed in claim 9, wherein the material is a metal or metal alloy.
11. A panel as claimed in claim 10, wherein the deck component is roll formed and/or folded from sheet metal.
12. A panel as claimed in claim 10 or 11, wherein the deck component is made from aluminium alloy sheet.
13. A panel as claimed in any one of the preceding claims, wherein the surface portion of the deck component has a number of holes or other openings formed therein.
14. A panel as claimed in claim 13, wherein the surface portion of the deck component has a number of relatively larger holes and also a number of relatively smaller holes formed therein, wherein the larger holes and the smaller holes are interspersed evenly, or in a consistent or repeating arrangement with one another, over at least a portion of the area of the surface portion.
15. A panel as claimed in claim 13 or 14, when dependent on claim 11 or 12, wherein at least some of the holes are laser cut.
16. A panel as claimed in claim 13, 14 or 15, when dependent on claim 11 or 12, wherein at least some of the holes are punched from below so as to form raised rims on the holes
17. A panel as claimed in claim 4, or any one of claims 5-16 when dependent on claim 4, wherein: the first engaging formation(s) include a pair of hook members, each hook member has a mounting portion and a support member engaging portion, the mounting portion of one of the hook members is mounted to an inside surface of the side portion on one side of the deck component, such that the support member engaging portion of this hook member projects out beyond the first end of the deck component, and the mounting portion of the other of the hook member is mounted to an inside surface of the side portion on the other side of the deck component, such that the support member engaging portion of that hook member also projects out beyond the first end of the deck component.
18. A panel as claimed in claim 4 or 17, wherein: the second engaging formation(s) include a pair of hook members, each hook member has a mounting portion and a support member engaging portion, the mounting portion of one of the hook members is mounted to an inside surface of the side portion on one side of the deck component, such that the support member engaging portion of this hook member projects out beyond the second end of the deck component, and the mounting portion of the other of the hook member is mounted to an inside surface of the side portion on the other side of the deck component, such that the support member engaging portion of that hook member also projects out beyond the second end of the deck component.
19. A panel as claimed in claim 18, when claim18 dependent on claim 17, wherein: at one of the ends of the deck component, the support member engaging portions of the two hook members are horizontally offset (i.e. horizontally inwards or horizontally outwards) relative to the mounting portions, and at the other end of the deck component, the support member engaging portions of the two hook members are not horizontally offset relative to the mounting portions.
20. A panel as claimed in any one of the preceding claims, wherein the deck component includes an access opening.
21. A panel as claimed in claim 20, wherein in the deck component: the surface portion extends: in a width direction of the panel, between the opposed sides at the first end, and in a length direction of the panel, from the first end towards the second end before reaching an edge of the access opening closest to the first end; and the access opening extends: in the width direction of the panel, between the opposed side, and in the length direction of the panel, towards the second end from the edge of the access opening closest to the first end and for at least part of the way, but not necessarily all of the way, to the second end.
22. A panel as claimed in claim 20 or 21, wherein the panel also has a hatch door which can be closed to cover the access opening and opened to allow access through the access opening.
23. A panel as claimed in claim 22, wherein when the hatch door is closed it covers the access opening and operates effectively as an extension of the deck component’s surface portion.
24. A panel as claimed in claim 22 or 23, wherein the hatch door is hingedly connected to (or near) one of the sides of the deck component and pivots about the hinged connection when it is moved from open to closed and closed to open.
25. A panel as claimed in claim 24, wherein the side of the deck component to (or near) which the hatch door is hingedly connected can be swapped.
26. A panel as claimed in claim 4, or any one of claims 5-25 when dependent on claim 4, wherein the panel has at least one cross bracing member, one end of the (or each) cross bracing member being attached to (or near) an inside surface of the side portion on one side of the deck component, and the other end of the (or each) cross member being attached to (or near) and inside surface of the side portion on the other side of the deck component.
27. A panel as claimed in claim 20, or any one of claims 21-26 when dependent on at least claim 20, wherein the deck component includes a ladder top receiving opening.
28. A panel as claimed in claim 21, wherein in the deck component: the surface portion extends: in a width direction of the panel, between the opposed sides at the first end, and in a length direction of the panel, from the first end towards the second end before reaching an edge of the access opening closest to the first end; the access opening extends: in the width direction of the panel, between the opposed sides, and in the length direction of the panel, from the edge of the access opening closest to the first end towards the second end before reaching an edge of the ladder top receiving opening closest to the first end; and the ladder top receiving opening in the width direction of the panel, between the opposed side, and in the length direction of the panel, towards the second end from the edge of the ladder top receiving opening closest to the first end and for at least part of the way, but not necessarily all of the way, to the second end.
29. A panel as claimed in claim 27 or 28 wherein there is a cross bracing member between access opening and the ladder top receiving opening.
30. A panel as claimed in claim 20, wherein in the deck component: the surface portion extends: in a width direction of the panel, between the opposed sides at the first end, and in a length direction of the panel, from the first end towards the second end before reaching an edge of the access opening closest to the first end; and in a width direction of the panel, between the opposed sides at the second end, and in a length direction of the panel, from the second end back towards the first end before reaching an edge of the access opening closest to the second end; and the access opening extends: in the width direction of the panel, between the opposed sides, and in the length direction of the panel, between the edge of the access opening closest to the first end and the edge of the access opening closest to the second end.
31. A panel as claimed in claim 30, further including means for securing a ladder relative to the panel.
32. A panel as claimed in claim 31, wherein the means for securing a ladder relative to the panel is operable to secure the ladder against sideways movement relative to the panel.
33. A panel as claimed in claim 31 or 32, wherein the means for securing a ladder relative to the panel is operable to secure the ladder against movement relative to the panel in a length direction of the panel.
34. A panel as claimed in any one of claims 31-33, wherein the means for securing a ladder relative to the panel is operable to secure the ladder against sliding vertically / down relative to the panel and out of engagement with the panel.
35. A panel as claimed in any one of claims 31-34, wherein the means for securing a ladder relative to the panel includes a pair of slots or openings which extend from the access opening into the surface portion, each of the slots being spaced from the other in the panel’s width direction by a distance suitable to receive siderails of a ladder.
36. A panel as claimed in claim 35, wherein the means for securing a ladder relative to the panel further includes a securing member, the securing member being operable to be disengaged relative to the surface portion to allow installation of the ladder with the siderails of the ladder being received in the slots, and the securing member also being operable to be engaged relative to the surface portion to secure the siderails of the ladder in the slots.
37. A panel as claimed in claim 36, wherein the surface portion of the deck component has a part which extends in between the slots, and when a ladder is secured relative to the panel with the siderails of the ladder secured in the slots, the ladder is prevented from sliding vertically out of engagement with the panel provided at least one rung of the ladder is installed above the surface portion.
38. A panel suitable for installation to form a platform or part of a platform in a void of a building structure, the panel having: a deck component with a substantially planar surface portion; an access opening in the surface portion, optionally, a cover for covering/closing and uncovering/opening the access opening in the surface portion; and means for securing a ladder relative to the panel.
39. A panel as claimed in claim 38, wherein the means for securing a ladder relative to the panel is operable to secure the ladder against sideways movement relative to the panel.
40. A panel as claimed in claim 38 or 39, wherein the means for securing a ladder relative to the panel is operable to secure the ladder against movement relative to the panel in the panel’s length direction.
41. A panel as claimed in any one of claims 38-40, wherein the means for securing a ladder relative to the panel is operable to secure the ladder against sliding vertically / down relative to the panel and out of engagement with the panel.
42. A panel as claimed in any one of claims 38-41, wherein the means for securing a ladder relative to the panel includes a pair of slots or openings which extend from the access opening into the surface portion, each of the slots being spaced from the other in a sideways (width) direction of the panel by a distance suitable to receive siderails of a ladder.
43. A panel as claimed in claim 42, wherein the means for securing a ladder relative to the panel further includes a securing member, the securing member being operable to be disengaged relative to the surface portion to allow installation of a ladder with the siderails of the ladder being received in the slots, and the securing member also being operable to be engaged relative to the surface portion to secure the siderails of the ladder in the slots.
44. A panel as claimed in claim 43, wherein the surface portion of the deck component has a part which extends in between the slots, and when a ladder is secured relative to the panel with the siderails of the ladder secured in the slots, the ladder is prevented from sliding vertically out of engagement with the panel provided at least one rung of the ladder is installed above the surface portion.
45. A panel as claimed in any one of claims 38-44, wherein the surface portion of the deck component has a number of holes or other openings formed therein.
46. A platform installed in a void of a building structure, the platform including a first support member and a second support member both of which extend across at least a portion of the void, and a panel as claimed in any one of the preceding claims extending between the first support member and the second support member.
47. A platform installed in a void of a building structure, the platform including: a first support member and a second support member both of which extend across at least a portion of the void, a first panel, being a panel as claimed in any one of claims 1-45, extending between the first support member and the second support member, and a second panel, also being a panel as claimed in any one of claims 1-45, extending between the first support member and the second support member adjacent or beside the first panel.
48. A platform as claimed in claim 47, wherein the first panel is a panel as claimed in claim 13 or 45, or any one of claims 14-37 which can be read as dependent on claim 13, and the second panel is also a panel as claimed in claim 13 or 45, or any one of claims 14- 45 which can be read as dependent on claim 13, and there is a space between the two panels, wherein the space between the two panels is spanned by a link panel which has holes, and the link panel is secured relative to the first panel by inserting a plug into each of one or more of the holes in the link panel and through into one or more aligned holes in the first panel, and the link panel is secured relative to the second panel by inserting a plug into each of one or more of the holes in the link panel and through into one or more aligned holes in the second panel.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2019901745 | 2019-05-22 | ||
AU2019903639 | 2019-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ764598A true NZ764598A (en) | 2020-05-29 |
Family
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