[0001] This invention relates to scaffold fitting means and to a method of use thereof.
[0002] Scaffolding is a temporary structure that is typically erected around a building
or structure to safely support a person and/or materials during the construction of
the building or structure. The basic components of scaffolding are tubes, couplers
for connecting two or more tubes together, and boards. The key elements of a scaffold
are "standards", "ledgers", "transoms" and "aberdeens". The standards are typically
vertical tubes that transfer the weight of the structure to the ground. Ledgers are
typically horizontal tubes which are connected between standards. Transoms are typically
horizontal tubes that rest upon ledgers and are located at right angles to the same.
Aberdeens are typically horizontal tubes that are fitted parallel to a transom, underneath
the ledger and are attached to the standards.
[0003] European safety standards typically specify the performance requirements and design
arrangements for scaffolding to make currently used scaffolding systems as safe as
possible. One such safety standard is that a toe board is provided on each scaffolding
level to prevent tools and/or materials from being kicked off the scaffolding and
landing and/or injuring a person below the scaffolding level, and/or to prevent an
operative's foot from slipping off the scaffolding walkway. Toe boards are typically
provided adjacent an edge of the scaffold platform and are upstanding. They are typically
connected to standards in use to ensure the toe boards are securely held in place.
[0004] GB2377248 describes a scaffolding connector for connecting a toe board to a standard in use.
The connector includes a toe board receiving slot for receiving an end of a toe board
in use.
[0005] GB2056545 discloses a coupling device for mounting a hand guard rail and a toe board on a scaffold
platform. The coupling device comprises a U-shaped recess for retaining a top edge
of the toe board in use and a coupler for allowing connection to a standard.
[0006] GB2434397 discloses a security system for scaffolding comprising a restraining element suitable
for location around one or more components of a scaffold and a clip. The restraining
element has a U-shaped recess element for supporting a toe board in place in use.
[0007] Where a standard is not available, a "dead man" is typically used to connect the
toe board in place. A "dead man" is a vertical tube that is attached to an upper and
lower handrail of a scaffold system using couplers that reaches down to the toe board
and holds the same in place. An example of a deadman type of connection is disclosed
in
GB2127887, which describes a scaffolding connector assembly for connecting a toe board to a
horizontal hand rail in use. The assembly includes a vertical post having a first
finial connection at one end for connection to a horizontal tube below a platform,
and a clamp at an opposite end for mounting to a horizontal hand guard rail. Two clamps
are provided on the vertical post a spaced distance apart. Each clamp has a recess
for supporting a toe board therebetween in use.
[0008] The "dead man" arrangement does not offer the same support as a standard. In addition,
in order to fit a dead man, two ninety degree couplers and three fittings are required
to be tightened using five securing nuts. This takes a fitter a significant amount
of time to fit, thereby increasing labour costs, and it adds a significant amount
of weight to the overall scaffolding structure and to transportation of the scaffolding
structure when disassembled.
[0009] It is therefore an aim of the present invention to provide scaffold fitting means
that removes the requirement for dead man fittings to be used.
[0010] It is an aim of the present invention to provide scaffold fitting means that fully
complies with all safety standards, such as for example the UK Safety Standard SG4:10
guidelines.
[0011] It is a yet further aim of the present invention to provide scaffold fitting means
that allows a toe board to be held more securely in use.
[0012] It is a yet further aim of the present invention to provide toe board scaffold fitting
means.
[0013] It is a yet further aim of the present invention to provide a method of using scaffold
fitting means.
[0014] According to a first aspect of the present invention there is provided scaffold fitting
means, said scaffold fitting means including:
attachment means for attaching the scaffold fitting means to at least one further
scaffold component in use, said attachment means defining at least one aperture and/or
channel therein for the location of the further scaffold component therethrough in
use;
toe board location means for locating a toe board with the scaffold fitting means
in use; and
characterised in that a central or substantially central axis of said aperture and/or
channel is transverse or perpendicular to a longitudinal axis of said toe board location
means and/or a longitudinal axis of the scaffolding fitting means.
[0015] Thus, the scaffold fitting means of the present invention is arranged for attachment
to a horizontal or substantially horizontal further scaffold component, such as for
example, a transom tube, a ledger tube and/or an Aberdeen tube. This is in contrast
to prior art toe board attachment devices which are arranged for attachment to a standard
or vertical scaffold component, such as a dead man. In prior art devices, the central
axis of the attachment aperture is typically parallel or substantially parallel to
a longitudinal axis of one or more side walls of the toe board location means. The
scaffold fitting means of the present invention fully complies with the required safety
standards. It has the advantage of removing the requirement of a deadman fitting which,
in practise, typically removes the requirement for the use of a 5ft vertical tube,
two double clip connectors and a single clip connector. Over a large scaffolding structure,
it will be appreciated that removal of a large number of deadman fittings would provide
a huge cost saving, significantly reduced time to fit the scaffolding and significantly
reduced weight of the scaffolding.
[0016] It is to be noted that the terms transverse and perpendicular also encompass the
terms substantially transverse and substantially perpendicular respectively.
[0017] Preferably the toe board location means includes a base wall and one or more side
walls protruding outwardly from said base wall. Preferably the central or substantially
axis of said aperture and/or channel is transverse or perpendicular to a longitudinal
axis of the side walls of the toe board location means. Preferably the longitudinal
axis of the side walls is from a base edge of the side wall where it attaches to the
base wall of the toe board location means, and a free edge of the side wall opposite
the base edge.
[0018] Preferably the longitudinal axis of the scaffold fitting means is from a lower part
of the attachment means to an upper part of the toe board location means.
[0019] Preferably the central or substantially central axis of the attachment means aperture
and/or channel is non-radial or the central or substantially central axis is non-planar
to the aperture and/or channel or to an open end of the aperture and/or channel.
[0020] The central or substantially central axis of the attachment means aperture and/or
channel is preferably the axis passing through the centre of the aperture and/or channel.
Preferably the axis runs from a front opening of the aperture/channel to a rear opening
of the aperture/channel.
[0021] In one embodiment wherein the attachment means is or includes a channel, preferably
the channel has a central or substantially central axis that runs longitudinally of
the same. This central or substantially central axis is transverse or perpendicular
to a longitudinal axis of one or more, and preferably all, side walls of the said
toe board location means and/or the scaffold fitting means.
[0022] Preferably the fitting means itself has a longitudinal axis and the central or substantially
central axis of the aperture/channel is transverse or perpendicular to the longitudinal
axis of the fitting means.
[0023] In one embodiment wherein the attachment means is or includes an aperture, preferably
the central or substantially central axis of the attachment means aperture/channel
is parallel or substantially parallel to a longitudinal axis of the further scaffold
component to be located through the aperture/channel in use or with a longitudinal
axis of the toe board that is to be located in the toe board location means in use.
[0024] Further preferably the central or substantially central axis of the attachment means
aperture/channel is arranged to be co-axial or substantially co-axial to a longitudinal
axis of the further scaffold component to be located through the aperture in use.
[0025] Preferably the aperture and/or channel of the attachment means is formed when the
attachment means is in at least an attached/clamped position.
[0026] Preferably the aperture and/or channel of the attachment means is also formed when
the attachment means is in a detached/unclamped position.
[0027] Preferably the attachment means aperture is circular or substantially circular in
shape, and preferably particularly so when the attachment means is in a clamped or
attached position.
[0028] Preferably the attachment means channel is cylindrical or substantially cylindrical
in shape, and preferably particularly so when the attachment means is in a clamped
or attached position.
[0029] Preferably the further scaffold component to be located through the aperture/channel
in use is cylindrical or substantially cylindrical in shape.
[0030] In one embodiment the attachment means are arranged so as to allow the scaffold fitting
means to be fitted to at least one horizontal or horizontally arrangeable scaffold
tube in use, such as a transom, a ledger an Aberdeen and/or the like.
[0031] In one embodiment a first or single attachment means is provided to allow the scaffolding
fitting means to be fitted to a single scaffold tube or component in use. In an alternative
embodiment a first and at least second attachment means are provided, or at least
two attachment means are provided on the scaffold fitting means, to allow the scaffolding
fitting means to be fitted to two or more scaffold tubes or components in use. The
at least two attachment means can be located adjacent to each other or a spaced distance
apart.
[0032] Preferably the first and/or at least second attachment means are movable between
a clamped/attached position, and an unclamped/detached position in use. In the clamped/attached
position, the attachment means is typically securely attachable to the further scaffold
component. In the unclamped/detached position, the further scaffold component is typically
movable relative to the attachment means for insertion or removal therefrom.
[0033] In one embodiment the attachment means includes an attachment mechanism for maintaining
the attachment means in the clamped/attached position. Release and/or undoing of the
attachment mechanism typically moves the attachment means from the clamped/attached
position to the unclamped/detached position. Tightening and/or engagement of the attachment
mechanism typically moves the attachment means from the unclamped/detached position
to the clamped/attached position.
[0034] In one embodiment the aperture or channel of the attachment means is smaller in diameter,
width and/or dimensions when in the clamped/attached position compared to the diameter,
width and/or dimensions in the unclamped/detached position.
[0035] Preferably each of the first and/or at least second attachment means includes first
and at least second clamping portions or members, parts or free ends of at least the
first and second clamping portions or members which have an attachment mechanism provided
on or associated with the same to allow the clamping portions or members to be retained
in the clamped/attached position in use.
[0036] Preferably the first and at least second clamping portions or members are movable
between a clamped/attached position, wherein the parts or free ends of one or more
of the clamping portions or members are moved towards each other for secure attachment
around a scaffold component in use, and an unclamped/detached position, wherein the
parts or free ends of the one or more clamping portions or members are moved away
from each other to allow detachment or insertion around a scaffold component in use.
[0037] Preferably the first and at least second clamping portions or members define the
at least one aperture or channel therebetween when in at least the clamped/attached
position.
[0038] Preferably the first and at least second clamping portions or members form or substantially
form a circle or annular member when in at least the clamped/attached position. This
allows a scaffold component, such as a transom, ledger or Aberdeen, having a substantially
circular cross section to be securely fitted within or between the first and at least
second clamping portions or members in use.
[0039] The attachment mean and/or mechanism can include any or any combination of one or
more clips, nuts and bolts, screws, inter-engagement members, clamps and/or the like.
Preferably any or any part of the attachment means and/or mechanism can be pivotably
mounted to the scaffold fitting means if required.
[0040] In one embodiment the toe board location means has an opening or the toe board location
means includes a recess portion having an opening to said recess portion. The recess
portion is preferably defined between a base wall and side walls of the toe board
location means. An edge of a toe board, and preferably a base, narrow edge and/or
longitudinal edge of a toe board, is typically located through said opening in use
and rests in said recess portion or toe board location means.
[0041] Preferably the recess portion and/or toe board location means is shaped such that
a toe board can be freely supported in said location means or recess portion without
any further component being required. For example, in one example, the recess portion
and/or toe board location means allows the toe board to be freely upstanding, vertical
or substantially vertical therein in use.
[0042] Preferably the recess portion or toe board location means is U-shaped or substantially
U-shaped.
[0043] Preferably the recess portion and/or toe board location means has a base wall and
at least first and second side walls. The first and second side walls are typically
parallel or substantially parallel and a spaced distance apart from each other. Preferably
the first and second side walls are provided opposite or substantially opposite to
each other.
[0044] The first and/or at least second side walls typically protrude outwardly/upwardly
from a surface of the base wall. Both or all side walls preferably protrude outwardly
from the same surface of the base wall.
[0045] Preferably the height of the first and/or second side walls or the U-shaped recess
portion is approximately, or at least, half the height of a toe board that is to be
fitted in an upstanding position with the same in use.
[0046] Preferably the attachment means are located at or adjacent a first or base end of
the scaffold fitting means and the opening to the recess portion and/or toe board
location means are located at or adjacent a second or top end of the scaffold fitting
means in use.
[0047] The first end of the scaffold fitting means is typically opposite, and preferably
directly opposite, to the second end of the scaffold fitting means.
[0048] Preferably the opening of the recess portion and/or the toe board location means
faces away from the attachment means of the scaffold fitting means. The plane of a
top opening of the toe board location means/recess portion is typically transverse,
perpendicular or substantially transverse or perpendicular to the plane of the aperture/aperture
opening/channel/ channel opening.
[0049] Preferably the side walls of the recess portion and/or toe board location means are
plate like or sheet like in form.
[0050] In one embodiment one or more side walls of the toe board location means facing the
toe board in use are planar or substantially planar.
[0051] In one embodiment one or more side walls of the toe board location means facing the
toe board in use is non-planar, has an inwardly protruding section and/or is angled
so as to improve engagement with the toe board in use.
[0052] In one embodiment toe board securing means are provided on or associated with the
toe board location means for securing the toe board in position when located in said
toe board location means.
[0053] In one embodiment the toe board securing means are provided on or associated with
the recess portion and/or toe board location means to allow a toe board to be secured
in said recess portion or location means in use.
[0054] Preferably the toe board securing means and/or attachment means/mechanism of the
attachment means are provided on a front of the scaffold fixing means facing outwardly
of the scaffold structure in use. This prevents the same from causing a tripping hazard
on an inwardly facing surface of the scaffolding system.
[0055] In one embodiment the toe board securing means can include any or any combination
of one or more nuts and bolts, clips, screws, inter-engaging members, biasing means,
resilient biasing means, friction fit means and/or the like.
[0056] In one example, the resilient biasing means can include any or any combination of
a spring or sprung member or members.
[0057] In one embodiment the toe board securing means is provided on or associated with
a side wall of the recess portion or toe board location means, and preferably at or
adjacent a top edge or free end of the side wall.
[0058] In one embodiment an aperture can be defined in the side wall of the recess portion
or side wall of the toe board location means through which a securing bolt, screw,
other securing means and/or the like can be located in use. The securing bolt, screw
or other securing means can be detachably attached in the aperture or can be permanently
attached therein.
[0059] Preferably the aperture is a threaded aperture to allow rotatable engagement with
a complementary threaded securing means, securing bolt or screw in use.
[0060] In one embodiment a washer or support member is typically provided at one end or
the toe board contact end of the toe board securing means for engaging with a surface
of the toe board in use. The washer or support member is arranged so as to typically
spread the clamping force provided by the toe board securing means over a larger surface
area of the toe board. This helps to prevent damage to the toe board in use. Thus,
in one example, the washer or support member has larger dimensions or surface area
than the end of the toe board securing means or bolt to which it is attached.
[0061] Preferably the toe board securing means includes gripping means to allow a user to
grip and/or actuate the securing means in use.
[0062] Preferably the washer or support member is located within the recess portion and/or
between the side walls of the toe board location means and the gripping means is located
external to the recess portion or side walls of the toe board location means in use.
[0063] Preferably the washer or support member is pivotally or rotatably mounted on the
toe board securing means so as to improve the fit of the same against the toe board
surface with which it engages in use. Thus the washer or support member can pivot
or rotate with respect to the remainder of the toe board securing means in use.
[0064] A toe board is typically an elongate board member having a front surface, a rear
surface, two ends and two longitudinal sides. The front and rear surfaces are typically
parallel to the longitudinal axis of the board. The front surface is arranged to face
outwardly of the scaffolding structure when assembled and the rear surface of arranged
to face inwardly of the scaffolding structure when assembled. The two longitudinal
sides are typically also parallel to the longitudinal axis of the board. A lower side
or edge typically engages against the base wall of the recess portion or U-shaped
portion and faces in a downwardly direction when fitted in use. An upper side typically
faces in an upwardly direction in use and away from the recess portion, U-shaped portion
or toe board location means when fitted in use. The ends of the toe board are typically
parallel to the standards of the scaffolding structure in use.
[0065] In one embodiment one or more protruding members are provided on the scaffold fitting
means for engagement with one or more scaffold boards in use. The one or more other
scaffold boards are typically boards that are arranged perpendicularly or substantially
perpendicular to the toe boards in use and/or are horizontal or substantially horizontally
arranged.
[0066] Preferably the one or more protruding members are arranged so as to be substantially
parallel to a base of the recess portion or the toe board location means.
[0067] In one embodiment the protruding members are preferably separate to and/or in addition
to the toe board location means and the attachment means.
[0068] In one embodiment a protruding member protrudes outwardly from either side of the
base of the recess portion or the toe board location means.
[0069] The one or more protruding members can be substantially planar and/or plate like
members or can be arched, curved or angled so as to grip the scaffold boards firmly
in use.
[0070] In one embodiment a base wall of the toe board location means/ recess portion is
arranged or is of such width so as to help secure scaffold boards in place on a scaffolding
structure in use.
[0071] Thus, for example, the width of the base wall can be significantly greater than the
width of the attachment means so as to protrude from either side of the attachment
means.
[0072] In one embodiment a body portion or stem is provided between the attachment means
and the toe board location means. The body portion or stem is of such dimensions so
as to space the toe board location means a required space from the attachment means.
Thus, for example, different scaffold fitting means could be provided with different
length stems suitable for fitting to or sitting off an Aberdeen tube, a transom tube,
a ledger tube and/or the like.
[0073] In one embodiment the body portion or stem is arranged so as to define further location
means for the location of one or more further scaffold components, such as for example
a scaffold board, an Aberdeen tube, a transom tube, a ledger tube and/or the like.
[0074] Preferably the body portion, stem or attachment means is in the form of a board tie.
[0075] In one embodiment the body portion or stem is substantially plate like or sheet like
in form so as to allow the stem to be locatable in a gap between two adjacent scaffold
boards in use.
[0076] In one embodiment adjustment means are provided on the scaffold fitting means so
as to allow the distance between the toe board location means and the attachment means
to be adjusted in use. This allows a single device to be used on two or more different
types of horizontal scaffold tubes, such as for example transom tubes or ledger tubes.
[0077] Preferably the adjustment means allows the distance between the toe board location
means and the attachment means to be moved between approximately 30mm-150mm.
[0078] Preferably the base wall of the toe board location means or recess portion is movable
relative to at least part of the attachment means using the adjustment means.
[0079] Preferably the base wall includes or is associated with a protruding member or portion
which is slidably movable in a slot provided in the stem, body portion and/or side
wall of the toe board location means.
[0080] Preferably a longitudinal axis of the slot is provided parallel or substantially
parallel to a longitudinal axis of the side wall of the toe board location means.
[0081] Preferably user actuation means are provided on or associated with the adjustment
means and/or protruding member or portion for allowing user actuation of the same
in use.
[0082] In one example the protruding member or portion includes or is in the form of a plunger.
User actuation means in the form of a gripping portion is associated with the protruding
member or portion and is provided on an exterior side of the toe board location means
for allowing actuation of the adjustment means in use.
[0083] Preferably the adjustment means can be moved between a movable position, wherein
the distance between the toe board location means and the attachment means can be
adjusted, and a fixed position, wherein the distance between the toe board location
means and the attachment means is maintained.
[0084] In one embodiment the adjustment of the toe board location means and the attachment
means is user selected or used defined. In an alternative embodiment the adjustment
of the toe board location means is between two or more pre-defined positions with
respect to the attachment means.
[0085] The scaffold fitting means of the present invention can be formed from a single integrally
formed component or it can be formed from two or more components that are joined together
via suitable joining means.
[0086] Suitable joining means could include adhesive, welding, one or more nuts and bolts
and/or the like.
[0087] The scaffold fitting means could be formed by mechanical bending, pressing, drop
forging, moulding and/or the like.
[0088] The scaffold fitting means can be formed from any or any combination of metal, plastic,
wood, rubber and/or the like.
[0089] According to a second aspect of the present invention there is provided a method
of using scaffold fitting means, said method includes the steps of
attaching the scaffold fitting means to at least one further scaffold component in
use using attachment means provided on the scaffold fitting means, said attachment
means defining at least one aperture and/or channel therein for locating the further
scaffold component therethrough;
locating a toe board in toe board location means provided on the scaffold fitting
means;
characterised in that a central or substantially central axis of said aperture and/or
channel is transverse or perpendicular to a longitudinal axis of said toe board location
means and/or a longitudinal axis of the scaffolding fitting means.
[0090] In one embodiment the method of use includes the step of fitting the scaffold fitting
means to a horizontal or substantially horizontal scaffold component.
[0091] Preferably a horizontal or substantially horizontal scaffold component is located
through the aperture and/or channel of the attachment means in use.
[0092] According to a third aspect of the present invention there is provided scaffold fitting
means, said scaffold fitting means including:
attachment means for attaching the scaffold fitting means to at least one further
scaffold component in use;
toe board location means for locating a toe board with the scaffold fitting means
in use; and
toe board securing means for securing the toe board in position when located in said
toe board location means.
[0093] Thus, in contrast to the prior art, the present invention provides toe board securing
means for securing a toe board in position in the toe board location means in use.
This improves the safety of the scaffold fitting and removes the likelihood of a toe
board accidentally being kicked out of the toe board location means in use. Furthermore,
the provision of the toe board securing means allows the scaffold fitting means to
be attached to a horizontal scaffold tube and/or a vertical scaffold tube in use.
[0094] According to a fourth aspect of the present invention there is provided a method
of using scaffold fitting means, said method including the steps of:
attaching the scaffold fitting means to at least one further scaffold component in
use using attachment means;
locating a toe board in toe board location means forming part of the scaffold fitting
means in use; and
securing said toe board in place in the toe board location means using toe board securing
means.
[0095] According to a fifth aspect of the present invention there is provided scaffold fitting
means, said scaffold fitting means including:
attachment means for attaching the scaffold fitting means to at least one further
scaffold component in use;
toe board location means for locating a toe board with the scaffold fitting means
in use; and
wherein adjustment means are provided for adjusting the distance of the toe board
location means with respect to the attachment means.
[0096] This aspect of the present invention has the advantage that it allows a single scaffold
fitting means to be used on two or more different types of horizontal scaffold components,
such as for example for use on ledgers and transoms. The distance of the toe board
location means from the attachment means is adjusted by a required amount.
[0097] According to a sixth aspect of the present invention there is provided a method of
using scaffold fitting means, said scaffold fitting means including: attachment means
for attaching the scaffold fitting means to at least one further scaffold component
in use; and toe board location means for locating a toe board with the scaffold fitting
means in use; and wherein said method includes the step of adjusting the distance
of the toe board location means from the attachment means to a required position.
[0098] It will be appreciated that a scaffold fitting means of the present invention could
include any or any combination of the abovementioned features.
[0099] Embodiments of the present invention will now be described with reference to the
accompanying figures, wherein:
Figures 1a, 1b, 1c show a side view, front view and rear view respectively of a scaffold
fitting device according to an embodiment of the present invention;
Figure 2 shows the scaffold fitting device of figures 1a-1c with a toe board and other
scaffold components fitted in use;
Figure 3 shows the scaffold fitting device of figures 1a-2 when fitted to a scaffolding
structure in use;
Figures 4a-4c show a side view, front view and rear view respectively of a scaffold
fitting device according to a further embodiment of the present invention;
Figure 5 shows the scaffold fitting device of figures 4a-4c with a toe board fitted
in use;
Figure 6 shows the scaffold fitting device of figures 4a-5 when fitted to a scaffolding
structure in use;
Figures 7a-7c show a side view, front view, and rear view respectively of a scaffold
fitting device according to a yet further embodiment of the present invention;
Figure 8 shows the scaffold fitting device of figures 7a-7c with a toe board fitted
in use;
Figure 9 shows the scaffold fitting device of figures 7a-8 when fitted to a scaffolding
structure in use;
Figures 10a-10c shows a side view, front view, and rear view respectively of a scaffold
fitting device according to a yet further embodiment of the present invention;
Figure 11 shows the scaffold fitting device of figures 10a-10c with a toe board fitted
in use.
[0100] Referring firstly to figures 1a-3, there is illustrated a scaffold fitting device
100 according to an embodiment of the present invention. The device 100 of the present
invention allows a toe board 13 to be fitted to a scaffolding structure 102 without
needing a conventional dead man fitting. In this embodiment, the scaffold fitting
device 100 is for fitting to a horizontal ledger tube 10. However, the device also
includes further attachment means for attachment to a horizontal scaffold board 9
and a horizontal transom tube 7 in use.
[0101] In particular, scaffold fitting device 100 includes attachment means in the form
of a ledger coupler 1, toe board location means in the form of a U-shaped recess portion
2, and stem portion 4.
[0102] Ledger coupler 1 comprises a first clamping member 104 and a second clamping member
14. An end of second clamping member 14 is pivotably mounted via pivot pin 20 to an
end of first clamping member 104 to allow the second clamping member 14 to be pivotably
moved between a clamped/attached position and an unclamped/detached position in use.
The free ends 106, 108 of first and second clamping members 104, 14 respectively are
maintained in the clamped position via an attachment mechanism in the form of a coupler
bolt 15 and a coupler nut 16. More particularly, one end of coupler bolt 15 is pivotably
mounted to free end 106 of the first clamping member 104 via pin 17. The other end
of coupler bolt 15 is located through an aperture defined in free end 108 of second
clamping member 14 and is secured thereto using coupler nut 16. A washer 23 is provided
between second clamping member 14 and nut 16.
[0103] The interior surfaces of the first and second clamping members 104, 14 are formed
so as to be complementary in shape, when in the clamped position, to a ledger tube,
around which the clamping members engage in use. In the clamped/attached position,
an aperture 110 is defined between the inwardly facing surfaces of first and second
clamping members 104, 14. The aperture 110 is for the location of a ledger tube therethrough
in use. In the clamped position, the free ends 106, 108 of the clamping members are
moved towards each other and secured in a clamped position such that the ledger tube
is firmly held in position between the first and second clamping members. In the unclamped
position, the free ends 106, 108 of the clamping members are moved apart from each
other so that a ledger tube can be located in and/or removed from the aperture defined
between the clamping members.
[0104] Aperture 110 has a central axis (A) when the clamping members are in an attached/clamped
position that is perpendicular to the planar opening or axis (B) of aperture 110.
[0105] The toe board location recess 2 comprises a base wall 112 and two opposing side walls
114, 116 that protrude outwardly and away from base wall 112. An opening 118 is defined
between free upper most edges of the side walls 114, 116. The opening 118 is for the
location of a longitudinal edge of a toe board therethrough in use. The base wall
112 and the side walls 114, 116 define a substantially U-shaped space 26 therebetween.
[0106] Side walls 114, 116 have a longitudinal axis C that is parallel to the planar axis
B of aperture 110 but perpendicular to central axis A of aperture 110. This is necessary
for the scaffold device 100 to be joined to a horizontal scaffold component in use
and to be upstanding or vertically arranged with respect to the horizontal scaffold
component to which it is attached to in use.
[0107] Toe board securing means in the form of a securing bolt 3 and nut 18 are provided
for securing a toe board within the toe board location recess 2 in use. A threaded
aperture 24 is defined in an upper section of side wall 116 to allow the securing
bolt 3 to be rotatably mounted therein. The nut 18 is located on an exterior side
of the recess 2. A pivotably mounted washer 19 is provided on an end of bolt 3 that
is located within the recess 2. Washer 19 has a larger surface area than the end of
bolt 3, thereby providing a greater clamping surface area for engaging with the toe
board in use.
[0108] In one example, the width of the interior space between side walls 114, 116 is 41mm
which is slightly larger than the narrow or end width of a standard toe board 13.
The height of the side walls 114, 116 is approximately 110mm, which is greater than
half of the height of a toe board 13 when in an upstanding position. These dimensions
ensure the toe board is held firmly within the toe board location recess. The securing
nut and bolt 3, 18 ensure the toe board 13 is securely held in place within the recess.
[0109] In this embodiment the toe board location recess 2, located at a top end of the fitting
device 100, is a spaced distance apart from the attachment means 1, located at a base
end of the fitting device 100. A stem section 4 is provided between the attachment
means 1 and the toe board location recess 2 and this stem section is of such dimensions
to allow location of one or more further scaffold components therebetween. In this
specific example, the stem section is of such length (typically approximately 91mm
in this example) so as to define a space 120 sufficient to allow the location of a
scaffold board 9 (i.e. the longitudinal side edge of a scaffold board) and a transom
tube 7 therein in use, as shown in figure 2. The stem section 4 defines a recess/space
120 between a lower surface of base wall 112, an upper surface of the first clamping
member 104 and the interior wall of stem 4. An opening 122 is defined opposite stem
4 for the location of the further scaffolding components therethrough in use. A lip
or side wall can be provided on a rear wall of device 100 to reduce the size of opening
122 so as to hold a scaffold component within the space 120 in use.
[0110] It is to be noted that the attachment bolt 15 for the attachment means 1 can be located
on a rear side of the device (i.e. the side opposite to the toe board securing bolt)
or can be located on a front side of the device (i.e. the same side as the toe board
securing bolt) as required.
[0111] The toe board securing bolt 3 is preferably arranged on a front side of the device
(i.e. a side of the device facing outwardly of the scaffolding structure in use. This
allows easy user manipulation of the same and prevents it being a tripping hazard
to anyone walking of the scaffolding structure in use.
[0112] Figure 3 shows two devices 100 in position on a scaffolding structure 102 fitted
to a ledger tube 10. In the illustration, standard tubes 11 are arranged in a vertical
manner. Horizontal transom tubes 7 are arranged a spaced distance apart between two
spaced apart parallel ledger tubes 10. Horizontal scaffold boards are located on top
of the transom tubes.
[0113] A further embodiment of the present invention is described with reference to figures
4a-6. The same reference numerals have been used to describe the same features as
in figures 1a-3. In this embodiment, the scaffold fitting device is arranged for fitting
to a transom tube 7 rather than a ledger tube. As such, it is acting as a transom
tie. More particularly, aperture 110 defined between the first and second clamping
members 104, 14 is sized so as to allow a transom tube 7 to be located therethrough
in use. The stem 4 located between the first clamping member 4 and the base wall 112
of the toe board location recess 2 is significantly shorter in height than the previous
embodiment and there is no requirement for further scaffolding components to be located
therewith in use. For example, the length of the stem 4 between the base wall 112
and the interior surface of the first clamping member 104 is approx. 39mm. The device
functions in a similar manner to the device previously described. The stem 4 is of
such dimensions that it can fit through a gap 124 between two adjacent scaffold boards
9. This allows a toe board to be secured perpendicular to the longitudinal axis of
the scaffold boards 9 in use.
[0114] The external surface 6 of base wall 112 can have a concave shape so as to allow this
surface to secure one or more scaffold boards in position in use.
[0115] A yet further embodiment of the present invention is described with reference to
figures 7a-9. In this embodiment, the scaffold fitting device is arranged for fitting
to a horizontal Aberdeen tube 25 rather than a ledger tube. As such, it is acting
as an Aberdeen tie. More particularly, aperture 110 defined between the first and
second clamping members 104, 14 is sized so as to allow an Aberdeen tube 25 to be
located therethrough in use. The stem 4 located between the first clamping member
4 and the base wall 112 of the toe board location recess 2 is of such dimensions that
it can fit through a gap 124 between two adjacent scaffold boards 9. This allows a
toe board to be secured perpendicular to the longitudinal axis of the scaffold boards
9 in use. The distance between base wall 112 and the top of aperture 110 of the coupler
1 is approx. 150mm.
[0116] Although the following embodiments only show a single toe board securing bolt being
used to secure the toe board in place in the location recess, it will be appreciated
that any number of toe board securing means could be provided. Use of a single toe
board securing means only has the obvious advantage that a skilled person is only
required to actuate a single securing mechanism, rather than multiple securing mechanisms.
[0117] A yet further embodiment of the present invention is described with reference to
figures 10a-11. In this embodiment, the scaffold fitting device has adjustment means
for adjusting the distance between the toe board location recess 2 and the ledger
coupler or attachment means 1. More specifically a plunger 130 is attached to base
wall 112 of the recess 2. Plunger 130 is a protruding member which has a portion protruding
inwardly of the recess 2 and a portion protruding outwardly of recess 2. Plunger 130
is slidably mounted in a slot 131 defined in side wall 114. User actuation means in
the form of a gripping plate 132 is provided on the exterior side of the plunger 130
to allow a user to grip the same and move the plunger between raised and lowered positions
with respect to the ledger coupler 1. The plunger 130 is engaged in a required position
using engaging means 134. By allowing the distance between the toe board recess 2
and the coupler ledger 1 to be adjusted, a single scaffold fitting device can be used
on any of the three abovementioned earlier embodiments for use with ledger tubes,
transom tubes and/or Aberdeen tubes.
1. Scaffold fitting means, said scaffold fitting means including:
attachment means for attaching the scaffold fitting means to at least one further
scaffold component in use, said attachment means defining at least one aperture and/or
channel therein for the location of the further scaffold component therethrough in
use;
toe board location means for locating a toe board with the scaffold fitting means
in use;
characterised in that a central or substantially central axis of said aperture and/or channel is transverse
or perpendicular to a longitudinal axis of said toe board location means and/or a
longitudinal axis of the scaffolding fitting means.
2. Scaffold fitting means according to claim 1 characterised in that said toe board location means includes a base wall and one or more side walls protruding
outwardly from said base wall, the central or substantially central axis of the aperture
and/or channel being transverse or perpendicular to a longitudinal axis of one or
more side walls of the toe board location means.
3. Scaffold fitting means according to claim 1 characterised in that first and at least second attachment means are provided to allow at least two further
scaffold components to be located with the same in use.
4. Scaffold fitting means according to claim 1 characterised in that the attachment means are movable between a clamped/attached position, wherein a further
scaffold component can be secured to the same, and an unclamped/ detached position,
wherein a further scaffold component can be inserted or removed from the same.
5. Scaffold fitting means according to claim 1 characterised in that the attachment means includes first and at least second clamping portions or member,
an attachment mechanism provided on or associated with parts or free ends of the first
and at least second clamping portions or members to allow the clamping portions or
members to be retained in a clamped/attached position in use.
6. Scaffold fitting means according to claim 1 or claim 5 characterised in that the attachment means and/or mechanism includes any or any combination of one or more
clips, nuts and bolts, screws, inter-engagement members or clamps.
7. Scaffold fitting means according to claim 1 characterised in that toe board securing means are provided on or associated with the toe board location
means for securing a toe board in position in use.
8. Scaffold fitting means according to claim 7 characterised in that the toe board securing means include any or any combination of one or more buts and
bolts, clips, screws, inter-engaging members, biasing means, resilient biasing means
or friction fit means.
9. Scaffold fitting means according to claim 7 characterised in that a washer or support member is provided at one end or a toe board contact end of the
toe board securing means and has a larger surface area than the end of the toe board
securing means to which it is attached.
10. Scaffold fitting means according to claim 1 characterised in that one or more protruding members are provided on the scaffold fitting means for engagement
with one or more scaffold boards in use.
11. Scaffold fitting means according to claim 1 characterised in that a body portion or stem is provided between the attachment means and the toe board
location means so as to provide the attachment means and toe board a spaced distance
apart from each other.
12. Scaffold fitting means according to claim 1 or 11 characterised in that body portion, stem or attachment means is in the form of a board tie.
13. Scaffold fitting means according to claim 1 characterised in that adjustment means are provided to allow the distance between the toe board location
means and the attachment means to be adjusted in use.
14. Scaffold fitting means according to claim 13 characterised in that the adjustment means includes a protruding member or portion that is slidably movable
in a slot defined in a stem or body portion provided between the attachment means
and the toe board location means and/or in a side wall of the toe board location means.
15. A method of using scaffold fitting means, said method includes the steps of
attaching the scaffold fitting means to at least one further scaffold component in
use using attachment means provided on the scaffold fitting means, said attachment
means defining at least one aperture and/or channel therein for locating the further
scaffold component therethrough;
locating a toe board in toe board location means provided on the scaffold fitting
means;
characterised in that a central or substantially central axis of said aperture and/or channel is transverse
or perpendicular to a longitudinal axis of said toe board location means and/or a
longitudinal axis of the scaffolding fitting means.