GB2576570A - A corner Shuttering member - Google Patents

A corner Shuttering member Download PDF

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Publication number
GB2576570A
GB2576570A GB1813856.0A GB201813856A GB2576570A GB 2576570 A GB2576570 A GB 2576570A GB 201813856 A GB201813856 A GB 201813856A GB 2576570 A GB2576570 A GB 2576570A
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GB
United Kingdom
Prior art keywords
vertical wall
base
corner
shuttering member
portions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB1813856.0A
Other versions
GB201813856D0 (en
GB2576570B (en
Inventor
Kiss Paul
Fraser Dunstan Karl
Derek Belcher Raymond
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Abbey Pynford Holdings Ltd
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Abbey Pynford Holdings Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Abbey Pynford Holdings Ltd filed Critical Abbey Pynford Holdings Ltd
Priority to GB1813856.0A priority Critical patent/GB2576570B/en
Publication of GB201813856D0 publication Critical patent/GB201813856D0/en
Priority to GB201903405A priority patent/GB2575142A/en
Priority to GB2001166.4A priority patent/GB2583401A/en
Publication of GB2576570A publication Critical patent/GB2576570A/en
Application granted granted Critical
Publication of GB2576570B publication Critical patent/GB2576570B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/001—Corner fastening or connecting means for forming or stiffening elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B2005/322—Floor structures wholly cast in situ with or without form units or reinforcements with permanent forms for the floor edges

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

A corner shuttering member for a shuttering system, the corner shutter member comprises a planar base 2a, 2b, a first vertical wall (3, Fig 1) extends upwardly from a first side of the base and a second vertical wall 7a, 7b extends upwardly from a second side of the base opposite the first side. The base comprises first and second portions 2a, 2b separate to each other. The second vertical wall comprises a first and second portions 7a, 7b separate to each other. The first vertical wall (3, Fig 1) is arranged to be bent about a vertical axis 6 lying in the plane of the first vertical wall. The corner shutter member is supplied in a storage configuration (Fig 1) in which the first vertical wall is in the form of a flat planar sheet, the first portion of the base lies in the same plane as the second portion of the base and the first and second portions of the second vertical wall lie in the same plane. In a deployed configuration (Fig 4) the first and second portions 7a, 7b of the second vertical wall are in contact with each other.

Description

A Corner Shuttering Member
The present invention relates to a corner shuttering member suitable for use in a shuttering system for supporting concrete or other settable material, and particularly, but not exclusively, for use during the construction of a structure such as a foundation raft or other low level beam. The invention is equally applicable to shuttering for both internal and external comers.
In the building industry, it is known to erect a building or other structure on a raft or beam, which may be supported by piles or cast directly on a suitably prepared piece of ground. This method of construction is particularly useful when building on ground that is liable to subsidence or heave, for example. The underside of the raft may be spaced above the ground by a void or compressible material. When using this method of construction, the raft or beam is typically cast in situ by pouring concrete or other settable material into formwork which defines the desired shape of the beam or raft. A shuttering system suitable for such an application is disclosed in UK Patent Application Publication Number GB 2522887 and a corner shuttering member in accordance with the present invention is particularly applicable to a shuttering system such as that disclosed therein.
Shuttering systems as disclosed in UK Patent Application Publication Number GB 2522887 employ a number of linear sections formed of sheet steel, which sections may be joined together to former a shutter for an edge of a poured concrete raft, or the like, and may also define a ledge extending from an edge of the raft which may be used for supporting layers of brickwork below the top edge of the raft. Such a ledge may be used to permit a course, or courses, of bricks to be laid on it to partly obscure the raft, when viewed externally of the building. Shuttering members for this purpose are sometimes referred to as brick support units and the present invention is particularly applicable to such brick support units.
The linear sections disclosed in UK Patent Application Publication No GB 2522887 and other such systems have proved very successful. However, at a corner of a building if it is often necessary to accurately cut linear sections at an angle of forty five degrees, abut these together and subsequently weld them together to provide a corner shuttering member. This is time consuming to do on site and may require equipment such as mitres or table saws to ensure that the angles are correctly cut. This is in addition to welding equipment and a skilled welder who will need to be present on site.
In order to avoid the problems outlined above, preconstructed corner shutter members may be provided which are prefabricated in a factory and supplied to a site. Unfortunately, unlike the linear edge shutter members, these cannot be nested together for transportation, or for ease of distribution on site. Thus, corner shuttering members, of which there may be many in a multi-storey building, have to be transported as individual items. This not only makes them bulky and therefore difficult to transport, either to a site or around a site but, unless appropriately packaged (which further adds to the bulk of such items) they are more prone to damage than their nested linear counterparts.
The present invention aims to provide an improved corner shuttering member which may be suitable for use with the aforementioned type of shuttering system, but which may also find use in other applications.
According to the first aspect of the present invention there is provided a corner shuttering member for a shuttering system for supporting concrete or other settable material during the construction of a structure, the corner shutter member comprising a planer base, a first vertical wall extending upwardly from a first side of the base and a second vertical wall extending upwardly from a second side of the base opposite the first side, wherein: the base comprises a first portion and a second portion separate to the first portion, the second vertical wall comprises a first portion and a second portion separate to the first portion; the first portion of the second vertical wall extends upwardly from the second side of the first portion of the base; the second portion of the second vertical wall extends upwardly from the second side of the second portion of the base; the first vertical wall is arranged to be bent about a vertical axis lying in the plane of the first vertical wall at a point distal from either end of the first vertical wall; the first vertical wall, to one side of the vertical axis, comprises a first portion of the first vertical wall which first portion is connected to the first portion of the base; the first vertical wall, to the other side of the vertical axis, comprises a second portion of the first vertical wall which second portion is connected to the second portion of the base; the corner shutter member is arranged to be supplied in a storage configuration, where the first vertical wall is in the form of a flat planar sheet, the first portion of the base lies in the same plane as the second portion of the base and the first and second portions of the second vertical wall lie in the same plane; the first vertical wall is arranged to be bent about the vertical axis to a deployed configuration, where the first and second portions of the second vertical wall are in contact with each other.
A corner shuttering member in accordance with the present invention enables the corner shuttering member to be supplied as a linear unit and, subsequently, to be bent on site into a corner shape, normally by being bent at right angles to form a right angled corner shuttering member. However, other corner shapes may be constructed other than right angled corners.
An additional feature of the invention is that it enables a corner shutter member to be fabricated merely by a stamping and folding process, without the need for any welding or any other fabrication steps to be performed in the factory.
The corner shuttering member may be arranged such that, in the deployed configuration, the first portion of the base is in contact with the second portion of the base. In this manner the two portions of the base may be arranged to be brought together and therefore form a continuous channel between the vertical walls.
Preferably, the first portion of the second vertical wall has a first engagement means and a second portion of the second vertical wall has a second engagement means, the first and second engagement means being arranged to engage with each other in order to retain the corner member in the deployed configuration, where the first and second portions of the second vertical wall are in contact with each other. In this manner the corner shuttering member may be arranged to be locked in the deployed configuration, against any resilience from the bend in the first vertical wall.
The first engagement means may comprise a slot in the first portion of the second vertical wall and the second engagement means comprise a tongue extending from the second portion of the second vertical wall to engage with the slot. However, other appropriate engagement means may be employed.
The corner shuttering member may be arranged such that the first engagement member is arranged to engage with the second engagement member by bending the first vertical wall to bring the first and second portions of the second vertical wall together, at the same time as twisting the first portion of the base relative to the second portion of the base, to permit the first engagement means to engage with the second engagement mean.
In the above manner, the first and second engagement members may be arranged such that when the two portions of the base are released, the base resiles to its natural position, this action maintaining and locking the first and second engagement members in engagement with each other, without the need to machine or attach any additional component.
Advantageously, the first vertical wall, the base and the second vertical wall are all formed from a single sheet of steel. Indeed, the complete corner shuttering member can comprise of solely a stamped sheet of steel appropriately folded to form the corner shuttering member in its storage configuration.
The first vertical wall may be pre-weakened along a line extending along the vertical axis, to assist in the bending of the corner shuttering member from the stored configuration to the deployed configuration. This pre-weakening of the first vertical wall may be achieved by stamping a linear array of apertures, in order to establish a line of weakness along the vertical axis, or may be provided by scribing or stamping to reduce the thickness along such a line, thus not only making it easier to bend the corner shuttering unit from the storage configuration to the deployed configuration, but also ensuring that a fold line is established at precisely the right location along the first vertical wall and ensuring that this fold line is truly vertical, to thereby ensure that the two portions of the second vertical wall are correctly aligned when the fold is made.
The first vertical wall may have a top edge bent outwardly or inwardly at ninety degrees to the vertical wall to form a top edge which is in a plane parallel to the plane of the base. Similarly the second vertical wall may have a top edge bent inwardly or outwardly at ninety degrees to the vertical wall to form a top edge which is in a plane parallel to the plane of the base, wherein both the top edge of the first vertical wall and the top edge of the second vertical wall each comprise two separate portions. In this manner the top edges may be used to reinforce the vertical walls, helping to prevent them bending under the force exerted by a mass of poured concrete or other settable material.
The corner shuttering member may be arranged such that in the storage configuration: adjacent edges of the first and second portions of the base join each other at the point where they meet the first vertical wall; the adjacent edges of the base portions define an angle of ninety degrees between them; and the first vertical wall is arranged to be bent through ninety degrees into the deployed configuration where the first and second portions of the second vertical wall come into contact and where the adjacent edges of the first and second portions of the base abut each other. In this manner the base portion may be continuous around the corner formed by the corner shuttering member when in the deployed configuration, thus forming a continuous channel which may be filled with concrete or other settable material. This is particularly advantageous where the shuttering member is to be used as a brick support unit.
The base may have a number of holes arranged to receive fastening in order to attach the corner shuttering member to a substrate.
A corner shuttering member as described above may be arranged to be used as a brick support unit at the edge of a concrete raft, wherein one of the first or second vertical walls is taller than the other and is arranged to retain a first mass poured concrete or other settable material, and wherein a trough is formed by the first vertical wall, the base and the second vertical wall, which trough may be filled with concrete or other settable material to the level of the lower of the first or second vertical walls, to form a ledge extending outwardly from the first mass of poured concrete or other settable material, the ledge being suitable for laying courses of brickwork on. However, the corner shuttering member may have other applications.
The corner shuttering member may have one or more ties extending between the first vertical wall and either the base or the second vertical wall in order to, in use, brace the first vertical wall against the mass of concrete or other settable material, the corner shuttering member being provided with a number of apertures for receiving the ends of the or each brace such that the or each brace may be inserted on site without the use of any tools. This permits the brace members to be inserted on site which in turn permits a plurality of corner shuttering members to be supplied to the site, or subsequently distributed on site, in a nested storage configuration, prior to being individually bent into the deployed configuration with the braces inserted either before or after the bending step.
According to a second aspect of the present invention, there is provided a shuttering system, comprising a corner shuttering member as described above, having a profile when viewed from one end and at least two identical linear shuttering members having the same profile and arranged to abut respective ends of the corner shuttering member. Such a system may be employed to cast a raft or similar structure of any size, with an appropriate number of linear shuttering members being provided to either side of the corner shuttering member.
In such a shuttering system, the profile of the top edge of the first and/or second vertical walls is/are preferably n-shaped, the shuttering system further comprising a plurality of n-shaped connectors, each being linear with an n-shaped profile. These may then be arranged to be inserted in the n-shaped profile top edges of adjacent shuttering members, in order to bridge and join together those adjacent top edges.
Two embodiments of the present invention will now be described by way of example only, with reference to the accompanying drawings, of which:
Figure 1 is a front perspective view of an internal corner shuttering member in accordance with the present invention in a storage configuration;
Figure 2 is a section along the line l-l of Figure 1;
Figure 3 is a view corresponding to Figure 1 but with the comer shuttering member in a partially folded configuration;
Figure 4 corresponding to Figures 1 and 3 but shows the corner shuttering member in a deployed configuration;
Figure 5 shows the corner shuttering member of Figure 4 connected to two adjacent linear shuttering members having the same profile;
Figure 6 corresponds to Figure 2, but show the corner shuttering member secured to a substrate and retaining a body of concrete;
Figure 7 is a front perspective of an external corner shuttering member in accordance with the present invention, shown in a storage configuration;
Figure 8 corresponds to Figure 7 but shows the corner shuttering member partly folded;
Figure 9 corresponds to Figures 7 and 8 but shows the corner shuttering member in a fully folded, deployed configuration; and
Figure 10 illustrates how, in the storage configuration, a plurality of corner shuttering members, either in internal or external corner shutter members, may be nested in the storage configuration for either transportation or storage.
Referring now to Figure 1, this shows an internal corner shuttering member, indicated generally as 1, which comprises a single piece of steel sheet stamped and folded to have the profile illustrated in Figure 2. The corner shuttering member 1 shown in Figures 1 and 2 is in a “storage configuration”, as it would be stored and transported prior to assembly on site.
The corner shuttering member 1 comprises a base made up a first base portion 2a and a second base portion 2b which lie of the same plane. Extending vertically upward from the base portions 2a and 2b is a first vertical wall 3, comprising a first portion 3a and a second portion 3b, separated by a vertical line of perforations 4. The perforations 4 form a vertical line of weakness, about which the portions 3a and 3b of the first vertical wall 3 may be bent, as will be described later. The top edge of the first vertical wall 3 is bent and is divided into two portions by cut 6, to form two n-shaped channels 5a and 5b, 5b of which is also seen in Figure 2.
To the other side of the base portions 2a and 2b there is provided a second vertical wall 7, which again comprises two portions 7a and 7b each having a top edge bent to form respective n-shaped channels 8a and 8b. The n-shape channels 5a, 5b, 8a and 8b each act to reinforce the top edge of the vertical walls 3 and 7a and 7b and thus act to prevent them distorting under the force of poured concrete.
Extending from the first portion 7a of the second vertical wall is a first engaging member in the form of a slot 9. Extending from an adjacent edge of the second portion 7b of the second vertical wall 7 is a second engaging member in the form of a tongueW, arranged to be received in the slot 9.
When it is desired to deploy the corner shuttering member 1, this is first bent, normally on site, along the line of perforations 4, as shown in Figure 3. At this point, the first portion 3a of the first vertical wall is twisted relative to the second portion 3b of the first vertical wall, such that the tongue 10 aligns with the slot 9.
Thus as the first portion 7a of the second vertical wall continues to be brought together towards the second portion 7b of the second vertical wall 7, the tongue 10 passes through the slot 9. Then, when the corner shuttering member 1 is released and the corner shuttering member resiles towards its natural shape, the first and second portions 7a and 7b of the second vertical wall again become realigned, such that the second tongue 10 is raised up in the slot 9, which then acts to retain the corner shuttering member 1 in a deployed configuration, as shown in Figure 4. This may then be fastened at an appropriate location to a substrate, by fasteners extending through holes in the base portions 2a and 2b.
With reference to Figure 5, this shows two linear shuttering members 11 and 12, (shown in broken line), abutted against respective sides ofthe corner shuttering member 1, of Figure 4. The profile of the linear shuttering members 11 and 12 is identical to that of the corner shuttering member 1, as shown in Figure 2. This permits adjacent shuttering members 11,1 and 1, 12 to then be joined by inserting joining members 13 (only one of which is shown in Figure 5) at the positions indicated in Figure 5.
Each joining member 13 has a similar, but slightly smaller, profile in the width direction to the n-shaped channels 5A, 5B, 8A and 8B. These joining members 13 may thus be forced in to the n-shaped channels 5A, 5B, 8A and 8B to bridge between the adjacent channels 5A, 5B, 8A and 8B and thus lock the adjacent n-shaped channels together.
Referring now to Figure 6, this shows in section, a corner shuttering member 1 retaining a main body of poured concrete 14, with a further quantity 15 of poured concrete filling a trough in the corner shuttering member 1, formed by the base portion 2b, the first portion 3b of the first vertical wall 3 and the first portion 7b of the first vertical wall 7. The main body of poured concrete 14 may flow through apertures 25 in the first vertical wall 3 in order to fill the trough.
The corner shuttering member 1 is retained in place by fastenings 16 extending into a substrate 17, which may, for example, be a rough layer of concrete poured onto level ground, or could, for example, be a temporary substrate such as plywood to subsequently be removed.
Although not shown, if additional support for the vertical wall 3 is required, to counter the force exerted by the main body of poured concrete 14, then braces may be inserted between respective pairs of slots 26 and holes 27 of Figure 5, in the manner as disclosed in UK Patent Application Publication Number GB 2522887.
In this embodiment, the corner shuttering member 1 may be used as a brick support unit where, when the main body of concrete 14 has set to form a raft, the further quantity of concrete 15 then forms a ledge upon which brickwork may be laid, to partly obscure the end face of the raft. However, corner shuttering members in accordance with the invention may have applications other than to brick support units.
Referring now to Figure 7, there is shown an external comer shuttering member also in accordance with the present invention, and this is indicated generally as 18. This is very similar to the previously described internal corner shuttering member 1.
The external corner shuttering member 18 is shown in a storage configuration in Figure 7. This again comprises of a first vertical wall 19, but here the first vertical wall 19 is lower than the second vertical wall 20. Again, each vertical wall comprises two portions 19a, 19b and 20a, 20b respectively. Here, two first slots 21a, 21b are arranged to engage with two tongues 22a, 22b, in exactly the same manner as described in the previous embodiment.
The two portions 19a and 19b of the first vertical wall 19 and the two portions 20a and 20b of the second vertical wall 20 are again joined by respective base portions 23a and 23b. As in the previous embodiment, a vertical line of perforations 24 is provided between the first and second portions 19a and 19b of the first vertical wall 19. This permits the two portions 19a and 19b to be bent together until, as shown in Figure 8, the tongues 22a, 22b engage with respective slots 21 a, 21 b and again, by twisting the corner shuttering member 18, these can be locked together, locking the corner shuttering member 18 in a deployed configuration illustrated in Figure 9.
It will be appreciated that the external corner shuttering member 18 of Figure 9, once in the deployed configuration, can be used in conjunction with the linear shuttering members 11 and 12 of Figure 9, in exactly the same manner as the internal corner shuttering member 1 shown in Figure 5. The only difference being that here the external corner shuttering member 18 will be used to form an external corner. However, these two ninety degree corner shuttering members 1 and 18 have only been described by way of example. Other internal and external angled corner shuttering members can be constructed in just the same manner, for any desired angle of internal or external corner.
Referring now to Figure 10, this illustrates how multiple internal and/or external corner shuttering members 1,18 may be nested together for storage or transportation for, when in the storage configuration, both have similar profiles.
Two embodiments of the present invention have been described with reference to the accompanying figures and both of these illustrate corner shuttering member suitable for use as brick support units. However, corner shuttering members in accordance with the present invention may be applicable for other shuttering tasks and therefore the scope of the invention should be interpreted with reference to the following claims.

Claims (16)

1. A corner shuttering member for a shuttering system for supporting concrete or other settable material during the construction of a structure, the corner shutter member comprising a planer base, a first vertical wall extending upwardly from a first side of the base and a second vertical wall extending upwardly from a second side of the base opposite the first side, wherein:
the base comprises a first portion and a second portion separate to the first portion, the second vertical wall comprises a first portion and a second portion separate to the first portion;
the first portion of the second vertical wall extends upwardly from the second side of the first portion of the base; the second portion of the second vertical wall extends upwardly from the second side of the second portion of the base;
the first vertical wall is arranged to be bent about a vertical axis lying in the plane of the first vertical wall at a point distal from either end of the first vertical wall;
the first vertical wall, to one side of the vertical axis, comprises a first portion of the first vertical wall which first portion is connected to the first portion of the base;
the first vertical wall, to the other side of the vertical axis, comprises a second portion of the first vertical wall which second portion is connected to the second portion of the base;
the corner shutter member is arranged to be supplied in a storage configuration, where the first vertical wall is in the form of a flat planar sheet, the first portion of the base lies in the same plane as the second portion of the base and the first and second portions of the second vertical wall lie in the same plane;
the first vertical wall is arranged to be bent about the vertical axis to a deployed configuration, where the first and second portions of the second vertical wall are in contact with each other.
2. A corner shuttering member as claimed in Claim 1, where in the deployed configuration the first portion of the base is in contact with the second portion of the base.
3. A corner shuttering member as claimed in Claim 1 or Claim 2, wherein the first portion of the second vertical wall has a first engagement means and a second portion of the second vertical wall has a second engagement means, the first and second engagement means being arranged to engage with each other in order to retain the corner member in the deployed configuration, where the first and second portions of the second vertical wall are in contact with each other.
4. A corner shuttering member as claimed in any preceding claim, wherein the first engagement means comprises a slot in the first portion of the second vertical wall and the second engagement means comprises a flange extending from the second portion of the second vertical wall to engage with the slot.
5. A corner shuttering member as claimed in Claim 3 or 4, wherein the first engagement member is arranged to engage with the second engagement member by bending the first vertical wall to bring the first and second portions of the second vertical wall together at the same time as twisting the first portion of the base relative to the second portion of the base, to permit the first engagement means to engage with the second engagement mean.
6. A corner shuttering member as claimed in Claim 5, wherein after being twisted to permit the first engagement means to engage with the second engagement mean, the base resiles to hold and lock the first engagement means to the second engagement means.
7. A corner shuttering member as claimed in any preceding claim, wherein the first vertical wall, the base and the second vertical wall are all formed from a single sheet of steel.
8. A corner shuttering member as claimed in any preceding claim, wherein the first vertical wall is pre-weakened along a line extending along the vertical axis to assist in bending the corner shuttering member from the stored configuration to the deployed configuration.
9. A corner shuttering member as claimed in any preceding claim, wherein the first vertical wall has a top edge bent outwardly or inwardly at ninety degrees to the vertical wall to form a top edge which is in a plane parallel to the plane of the base and wherein the second vertical wall has a top edge bent inwardly or outwardly at ninety degrees to the vertical wall to form a top edge which is in a plane parallel to the plane of the base and wherein both the top edge of the first vertical wall and the top edge of the second vertical wall each comprise two separate portions.
10. A corner shuttering member as claimed in any preceding claim wherein, in the storage configuration: adjacent edges of the first and second portions of the base join each other at the point where they meet the first vertical wall; the adjacent edges of the base portions define an angle of ninety degrees between them; and the first vertical wall is arranged to be bent through ninety degrees into the deployed configuration where the first and second portions of the second vertical wall come into contact and where the adjacent edges of the first and second portions of the base abut each other.
11. A corner shuttering member as claimed in any preceding claim, wherein the base has a number of holes arranged to receive fastening in order to attach the corner shuttering member to a substrate.
12. A corner shuttering member as claimed in any preceding claim, arranged to be used as a brick support unit at the edge of a concrete raft, wherein one of the first or second vertical walls is taller than the other and is arranged to retain a first mass of poured concrete or other settable material, and a trough formed by the first vertical wall, the base and the second vertical wall is arranged to be filled with concrete or other settable material to the level of the lower of the first or second vertical walls, to form a ledge extending outwardly from the first mass of poured concrete or other settable material, the ledge being suitable for lying courses of brickwork on.
13. A corner shuttering member as claimed in any preceding claim, comprising one or more brace supports extending between the first vertical wall and either the base or the second vertical wall in order to, in use, brace the first vertical wall against the mass of concrete or other settable material, the corner shuttering member being provided with a number of apertures for receiving the ends of the or each brace such that the or each brace may be inserted on site without the use of any tools.
14. A shuttering system comprising a corner shuttering member as claimed in any preceding claim having a profile when viewed from one end and at least two identical linear shuttering members having the same profile and arranged to abut respective ends of the corner shuttering member.
15. A shuttering system as claimed in Claim 14 where, in profile, the top edge of the first and/or second vertical walls is/are n-shaped, the shuttering system further comprising a plurality of n-shaped connectors, each being linear with an n-shaped profile and which are arranged to be inserted in the n-shaped profile top edges of adjacent shuttering members, in order to bridge and join those top edges together.
16. A shuttering system comprising a plurality of corner shuttering members as claimed in any one of Claims 1 to 113, wherein the corner shuttering members are identical and in the storage configuration are arranged to be nested or partly nested together.
GB1813856.0A 2018-06-29 2018-08-24 A Corner Shuttering Member Active GB2576570B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1813856.0A GB2576570B (en) 2018-08-24 2018-08-24 A Corner Shuttering Member
GB201903405A GB2575142A (en) 2018-06-29 2019-03-13 Integral shuttering system
GB2001166.4A GB2583401A (en) 2018-06-29 2020-01-28 A shutter member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1813856.0A GB2576570B (en) 2018-08-24 2018-08-24 A Corner Shuttering Member

Publications (3)

Publication Number Publication Date
GB201813856D0 GB201813856D0 (en) 2018-10-10
GB2576570A true GB2576570A (en) 2020-02-26
GB2576570B GB2576570B (en) 2021-06-09

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5562272A (en) * 1994-06-24 1996-10-08 American Ada Compliance Corporation Splicers for aggregate construction forms
EP1286002A2 (en) * 2001-08-22 2003-02-26 William Winter Shutters
KR20090010281A (en) * 2007-07-23 2009-01-30 박동수 Concrete closing device
DE202010010224U1 (en) * 2010-07-13 2010-09-09 Möhler, Dominik Connecting device for boarding concrete elements
GB2522887A (en) * 2014-02-07 2015-08-12 Abbey Pynford Holdings Ltd Shuttering system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5562272A (en) * 1994-06-24 1996-10-08 American Ada Compliance Corporation Splicers for aggregate construction forms
EP1286002A2 (en) * 2001-08-22 2003-02-26 William Winter Shutters
KR20090010281A (en) * 2007-07-23 2009-01-30 박동수 Concrete closing device
DE202010010224U1 (en) * 2010-07-13 2010-09-09 Möhler, Dominik Connecting device for boarding concrete elements
GB2522887A (en) * 2014-02-07 2015-08-12 Abbey Pynford Holdings Ltd Shuttering system

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GB2576570B (en) 2021-06-09

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