GB2607563A - A cavity closure - Google Patents
A cavity closure Download PDFInfo
- Publication number
- GB2607563A GB2607563A GB2105966.2A GB202105966A GB2607563A GB 2607563 A GB2607563 A GB 2607563A GB 202105966 A GB202105966 A GB 202105966A GB 2607563 A GB2607563 A GB 2607563A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cavity
- closure
- section
- plate
- cavity closure
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/003—Cavity wall closers; Fastening door or window frames in cavity walls
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Door And Window Frames Mounted To Openings (AREA)
- Gates (AREA)
Abstract
A cavity closure for closing a cavity across a load bearing surface, the closure comprising a load bearing plate section 2 and a box section 4 extending from one side of the plate section, the box section in use extending into the cavity to be closed by the load bearing plate. The closure is preferably formed from mild galvanised steel with the box section welded to the plate section. The box section may have insulation material (10, fig 5) located within so the closure acts as a thermal brake. The invention provides a load-bearing surface to absorb downward pressure from heavy loads travelling over the plate when installed in a doorway.
Description
A cavity closure
Field of the Invention
This invention relates to a cavity closure. More especially, the invention relates to a load-bearing or reinforced cavity closure that is suitable for use to close a cavity below a door opening.
Background of the Invention
A cavity cioser is a sealing element that fits within a cavity wall around a window or door to seal the gap protecting it from water ingress, damp, heat:ass or condensation.
Cavity closures on the market are made of plastic and are designed for the sole purpose of closing off the cavity around window and door side jambs. The closures are designed to provide a thermal break and moisture barrier. They are entirely unsuitable for closing any area which may be load bearing, such as for example, below a door opening which must be able to take the weight of a person walking through.
Statement of the Inventions
In one aspect there is provided, a cavity closure for closing a cavity across a load bearing surface, the closure comprising a load bearing plate section and a box section extending from one side of the plate section, the box section in use extending into the cavity to be closed by the load bearing plate.
Preferably, cavity closure is formed from metal.
Preferably, the cavity closure according to claim 2, wherein the cavity closure is formed from steel.
Preferably, the cavity closure according to claim 3, wherein the cavity closure is made from mild galvanised steel.
Preferably, the box section is welded to the plate section.
Brief Description of the Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figures 1 is a side cross section view of a cavity closure constructed in accordance with the invention; Figure 2 are side cross-section views of two further embodiments of the invention; Figure 3 is perspective views of the cavity closures of figure 1 and 2; and Figures 4 and 5 are perspective views showing the cavity closure in use.
Detailed Description of Preferred Embodiments
Figure 1 shows a cavity closure of the invention in cross-section. The closure comprises a platform surface in the form of a sheet or plate 2 that extends horizontally across the entrance of a floor cavity in use.
The floor cavity is typically one that is extends vertically into the ground between two cavity walls in a doorway.
The closure further comprises a rectangular or square box section 4 formed of side walls 6 and a floor 8. The box section extends from one surface of the plate section 2 such that the box section 4 extends downwardly into and between the cavity walls in use.
The closure is made from a load bearing material, such as metal, and more specifically, galvanised mild steel. A typical material would be steel grade EN 10025 S275 with a yield strength of 275MN/m2, a Youngs Modulus of 200 GN/m2 and a Possion Ratio for steel of 0.3.
Other load bearing materials with similar properties may be used.
The thickness of the plate section 2 is typically 3mm, and the box section wall thickness is typically 2mm. The box section 4 is welded to the plate 2.
The plate section 2 in use is load-bearing to absorb downward pressure from people walking over the plate 2 through the doorway or other heavy loads travelling over plate 2, for example, wheelchairs or trolleys.
To this end, the maximum 3D Von Mises stresses should be less than the material yield stress to ensure that all deformations are elastic and small. The deflections should be less than 2mm.
Figure 1 shows a cavity closure suitable for a 350mm cavity wall as an example. The length L of the plate section 2 is typically 330mm and the width W of the box section 4 is typically 130mm. The depth of the box section 4 is typically 147mm.
Figure 2 shows cavity walls suitable for 300mm and 250mm cavity walls respectively. The former has a plate length of 280mm and box-section width of 80mm. The latter has a plate length of 2230mm and box-section width of 30mm. Dimensions are provided as examples only and are not intending to be limiting in any way to the invention.
Figures 4 and 5 illustrate the cavity closure in position for use in a doorway. As can be seen, the plate 2 extends across the entrance of the cavity wall 8 with the box section 4 extending downwardly into the cavity 8.
As can also be seen, insulation material 10 is located within the box section 4 so that the cavity closure acts a thermal brake was well as providing a structural load bearing platform over the cavity 8.
Claims (5)
- CLAIMS 2. 3. 4. 5.A cavity closure for closing a cavity across a load bearing surface, the closure comprising a load bearing plate section and a box section extending from one side of the plate section, the box section in use extending into the cavity to be closed by the load bearing plate.A cavity closure according to claim 1, wherein the cavity closure is formed from metal.A cavity closure according to claim 2, wherein the cavity closure is formed from steel.A cavity closure according to claim 3, wherein the cavity closure is made from mild galvanised steel.A cavity closure according to any one of claims 2 to 4, wherein the box section is welded to the plate section.Amendments to the claims 5 have been filed as follows.CLAIMS1 A method of closing a floor cavity over an area that experiences downward load, the method comprising the steps of: forming a cavity closure comprising a plate section and a box section extending from one side of the plate section to a depth of about 147mm; wherein the plate section is loading bearing to the extent that the plate can absorb downward pressure from people walking over the plate when in use; and placing the cavity closure across the floor cavity such that the box section extends into the floor cavity and the floor cavity is closed by the load bearing plate.
- 2. A method according to claim 1, wherein the cavity closure is formed from metal.
- 3. A method according to claim 2, wherein the cavity closure is formed from steel.
- 4. A method according to claim 3, wherein the cavity closure is made from mild galvanised steel.
- 5. A method according to any one of claims 2 to 4, wherein the box section is welded to the plate section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2105966.2A GB2607563A (en) | 2021-04-27 | 2021-04-27 | A cavity closure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2105966.2A GB2607563A (en) | 2021-04-27 | 2021-04-27 | A cavity closure |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB202105966D0 GB202105966D0 (en) | 2021-06-09 |
| GB2607563A true GB2607563A (en) | 2022-12-14 |
| GB2607563A8 GB2607563A8 (en) | 2023-07-26 |
Family
ID=76193457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2105966.2A Pending GB2607563A (en) | 2021-04-27 | 2021-04-27 | A cavity closure |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2607563A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1388391A (en) * | 1971-05-25 | 1975-03-26 | Williams I | Lintels |
| GB2228033A (en) * | 1989-01-26 | 1990-08-15 | Espe Window Systems Limited | Method of, and strip means for, installing a window or door frame in a building |
| GB2250530A (en) * | 1990-10-17 | 1992-06-10 | Kayplan Windows Ltd | Fixing frames for windows, doors and the like |
| GB2283768A (en) * | 1993-11-12 | 1995-05-17 | Willan Building Services Ltd | Cavity closer |
| GB2301124A (en) * | 1995-05-26 | 1996-11-27 | Expanded Metal | Lintel |
| GB2450801A (en) * | 2007-07-02 | 2009-01-07 | John Patrick Byrne | A moisture barrier, and a method for placing it between roof element and a cavity wall. |
| GB2488466A (en) * | 2007-05-22 | 2012-08-29 | Polypipe Ltd | A cavity closer with heat resistant foil or membrane |
-
2021
- 2021-04-27 GB GB2105966.2A patent/GB2607563A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1388391A (en) * | 1971-05-25 | 1975-03-26 | Williams I | Lintels |
| GB2228033A (en) * | 1989-01-26 | 1990-08-15 | Espe Window Systems Limited | Method of, and strip means for, installing a window or door frame in a building |
| GB2250530A (en) * | 1990-10-17 | 1992-06-10 | Kayplan Windows Ltd | Fixing frames for windows, doors and the like |
| GB2283768A (en) * | 1993-11-12 | 1995-05-17 | Willan Building Services Ltd | Cavity closer |
| GB2301124A (en) * | 1995-05-26 | 1996-11-27 | Expanded Metal | Lintel |
| GB2488466A (en) * | 2007-05-22 | 2012-08-29 | Polypipe Ltd | A cavity closer with heat resistant foil or membrane |
| GB2450801A (en) * | 2007-07-02 | 2009-01-07 | John Patrick Byrne | A moisture barrier, and a method for placing it between roof element and a cavity wall. |
Non-Patent Citations (1)
| Title |
|---|
| Slide and Fold ltd, 27 April 2017, "alumina Bifold Door - Low Threshold", Slide and Fold ltd, [online], Available from: https://www.slideandfold.co.uk/alumina-low-threshold-with-cill [Accessed 21 February 2022] * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2607563A8 (en) | 2023-07-26 |
| GB202105966D0 (en) | 2021-06-09 |
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