EP2180240A1 - A lamp aperture collar - Google Patents
A lamp aperture collar Download PDFInfo
- Publication number
- EP2180240A1 EP2180240A1 EP09173783A EP09173783A EP2180240A1 EP 2180240 A1 EP2180240 A1 EP 2180240A1 EP 09173783 A EP09173783 A EP 09173783A EP 09173783 A EP09173783 A EP 09173783A EP 2180240 A1 EP2180240 A1 EP 2180240A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- collar
- main body
- flange
- configuration
- lamp
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
- F21V21/04—Recessed bases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
- F21V21/04—Recessed bases
- F21V21/047—Mounting arrangements with fastening means engaging the inner surface of a hole in a ceiling or wall, e.g. for solid walls or for blind holes
Definitions
- THE PRESENT INVENTION relates to a collar for a lamp aperture, a kit including the collar, a wall to which the collar has been fitted, a building including the wall, and a method of fitting the collar.
- Lamp fittings such as down-light fittings have become popular in recent years.
- Down-light fittings comprise a hollow cylindrical body which houses the lamp, a flange at one end of the hollow cylindrical body, and an arrangement to secure the hollow cylindrical body to, for example, a ceiling such that the flange abuts the ceiling and the hollow cylindrical body is substantially located above the ceiling (in a roof space - for example).
- Ceilings are usually constructed, at least in part, out of a layer of plaster (such as plasterboard).
- a lamp aperture is created in the layer of plaster and a down-light fitting secured using the arrangement described above - the electrical supply and the like are usually provided above the ceiling.
- the present invention seeks to ameliorate some of the problems associated with the prior art.
- one aspect of the present invention provides a lamp aperture collar comprising: a substantially tubular main body having a flexible section and a first flange for at least partially supporting the collar when fitted to a lamp aperture, the first flange extending radially away from the main body, the main body being biased away from a first configuration and into a second configuration by the flexible section, a diameter of the main body being greater in the second configuration than in the first configuration, wherein the main body can be moved towards the first configuration to permit the collar to be placed into a lamp aperture and allowed to move towards the second configuration to fit the collar to the lamp aperture.
- the main body further comprises at least one additional flange which is spaced apart from the first flange, a gauge of the collar being defined by the distance between the first flange and at least one additional flange.
- the flexible section comprises a portion of the main body which does not have the first flange.
- the flexible section comprises a portion of the main body which does not have an additional flange.
- the main body has a substantially circular cross-section.
- the main body is constructed out of plastic.
- the collar further comprises a break in the tubular main body defined between two ends of the main body which substantially oppose each other across the break.
- the break is filled with a compressible material which links the two ends of the main body.
- the break is filled with a flexible material which links the two ends of the main body.
- the collar further comprises a cap of intumescent material fitted to the main body of the collar and configured to house a lamp fitting therein.
- Another aspect of the present invention provides a lamp fitting kit comprising: a lamp aperture collar according to the above; and a lamp fitting.
- Another aspect of the present invention provides a wall having a lamp aperture to which a lamp aperture collar according to the above.
- Another aspect of the present invention provides a building including a wall according to the above.
- Figures 1 , 2 and 3 show an embodiment of the present invention.
- the embodiment comprises a collar 1 having a main body 2.
- the main body 2 is substantially tubular in shape, and has an outer circumferential surface 3 and an inner circumferential surface 4.
- a first flange 5 extends radially away from the outer circumferential surface 3 of the main body 2 of the collar 1 in a direction which is substantially perpendicular to the outer circumferential surface 3.
- a second flange 6 extends radially away from the outer circumferential surface 3 of the main body 2 of the collar 1 also in a direction which is substantially perpendicular to the outer circumferential surface 3 (i.e. the first 5 and second 6 flanges are substantially parallel to each other).
- the tubular main body 2 preferably has a substantially circular cross-sectional shape; alternatively, the tubular main body 2 may have a substantially square cross-sectional shape.
- the main body 2 may be formed from a number of substantially straight sides that form the desired cross-sectional shape. Different collars 1 having different shapes may be provided to fit different shaped lamp apertures.
- the first 5 and second 6 flanges are separated from each other across the outer circumferential surface 3 of the main body 2 of the collar 1.
- the distance between opposing inner surfaces 5a,6a of the two flanges 5,6 across the outer circumferential surface 3 of the collar 1 is a gauge of the collar 1.
- the first 5 and second 6 flanges preferably extend away from the outer circumferential surface 3 of the main body 2 by a distance which is greater than about 2 mm. Preferably, this distance is not greater than about 5 cm and is conveniently approximately 1 cm.
- the gauge of the collar 1 (as defined above) is substantially equal to the thickness of a typical layer of plaster 9 used (see figures 4-8 ), for example, to construct a ceiling. Indeed, the gauge of the collar 1 is marginally larger than the thickness of the relevant plaster layer 9 so as to allow the plaster layer 9 to be received by the collar 1 between the two flanges 5,6. It will be appreciated that different collars 1 having different gauges may be provided for use with different thicknesses of plaster layer 9.
- the collar 1 gauge is suitable such that plasterboard with a thickness of 9.5 mm or 12.7 mm can be received between the two flanges 5,6 of the collar 1.
- a collar 1 may have a gauge of approximately 12.8 mm or approximately 9.6 mm.
- the gauge of the collar 1 is preferably less than 5 cm.
- the main body 2 of the collar 1 is provided with a flexible section 7.
- the flexible section 7 biases the collar 1 away from a first configuration into a second configuration. In the second configuration a diameter of the main body 2 of the collar 1 is greater than the diameter of the main body 2 of the collar 1 in the first configuration.
- the flexible section 7 may be such that the collar 1 can be moved towards the first configuration manually.
- the flexible section 7 comprises a section of the main body 2 which does not have a first 5 and/or a second 6 flange.
- the arcuate length of the flexible section 7 is less than 5 cm.
- more than one flexible section 7 is provided around the main body 2 of the collar 1.
- Each of the plurality of flexible sections 7 need not be identical.
- the main body 2 of the collar 1 includes a break 8.
- the break 8 is defined between a first 8a and a second 8b edge of the main body 2 of the collar 1 (see figure 2 ).
- the distance between the first edge 8a and the second edge 8b of the main body 2 of the collar 1 is less than 2 cm.
- the break 8 comprises a section of flexible or compressible material in the main body 2 of the collar 1.
- the main body 2 of the collar 1 is preferably constructed out of plastic.
- the main body 2 of the collar 1 can be constructed out of a metal (such as stainless steel, steel, tin or aluminium).
- a mixture of both a metal and plastic are used in the construction of the main body 2 of the collar 1.
- the collar 1 may be fitted to a lamp aperture 10 (see figure 4 ) by applying a compressive force across a diameter of the main body 2 of the collar 1. This force flexes the flexible section 7 and closes the break 8 in the main body 2 of the collar 1. Thus, the overall diameter of the main body 2 of the collar 1 is reduced. In other words, the collar 1 is moved towards the first configuration as described above.
- the collar 1 may then be inserted into a lamp aperture in a plaster layer such that the outer circumferential surface 3 of the main body 2 is substantially aligned with an inner circumferential surface 10a of the lamp aperture 10 (see figure 4 ).
- the first flange 5 is preferably above the top surface of the plaster layer and the second flange 6 is preferably below a lower surface of the plaster layer.
- the plaster layer 9 is received (to a greater extent if already partially received) by the space defined between the first 5 and second 6 flanges (and specifically the inner surfaces thereof 5a,6a) and the outer circumferential surface 3 of the collar 1.
- the first flange 5 of the main body 2 at least partially prevents the collar 1 from falling through the lamp aperture under the force of gravity.
- the first flange 5 supports at least part of the weight of the collar 1 when the collar 1 has been fitted.
- the collar 1 is thus fitted to a lamp aperture 10 in a plaster layer 9.
- the collar 1 remains secured to the plaster layer 9 by, for example, the abutment of the inner surfaces 5a,6a with the plaster layer 9 or, for example, the friction between the outer circumferential surface 3 of the collar 1 and the inner circumferential surface 10a of the lamp aperture 10.
- the inner surface 5a at least partially supports the weight of the fitted collar 1.
- the inner circumferential surface 4 of the main body 2 of the collar 1 defines, when fitted, a lamp aperture 10b (see figures 4 and 5 ).
- a lamp fitting 11 such as a down-light fitting 11 (see figures 7 and 8 ) may be fitted to the collar 1 and plaster layer 9 in much the same manner as described above.
- the collar 1 protects the plaster layer 9 from excessive damage from insertion and removal of the lamp fitting 11.
- the collar 1 may also support at least part of the weight of the lamp fitting 11 which is fitted thereto.
- the first flange 5 (and the inner surface 5a thereof) at least partially supports the weight of a lamp fitting 11 fitted to the collar 1.
- the collar 1 when the collar 1 is fitted, there is still a degree of separation of the first edge 8a and the second edge 8b of the main body 2 across a break 8 and part of the collar 1 do not overlap each other around the lamp aperture 10.
- the collar 1 is provided without one or both of the first 5 and second 6 flanges.
- the collar 1 may be fitted to any suitable wall or panel.
- a plaster layer 9 has been described by way of example only and any suitable layer of rigid building material may be used.
- the wall may be part of a building which may be a domestic or commercial building.
- a cap which may be attached to the collar 1 and this attachment may be a removable attachment.
- the cap could take many different forms.
- the cap is formed, at least in part, from an intumescent material.
- the cap comprises a hood of woven intumescent material which expands when exposed to high temperatures such as a fire.
- the cap may be configured to cover the rear of a lamp fitting 11 fitted to the collar 1 - i.e. to house a lamp fitting 11.
- the cap is, in an embodiment, provided to form a barrier which substantially resists or prevents the passage of fire through the lamp aperture 10 to which the collar 1 is fitted into a space beyond the cap.
- the cap and collar 1 form a barrier to the transmission of fire from one side of a panel to which the collar 1 is fitted to the other side of the panel.
- the cap comprises a woven intumescent material
- the gaps between the woven fibres provide ventilation during normal operation but are closed when the intumescent material expands - for example on exposure to fire.
- the woven intumescent material may be a flexible material.
- the cap may be bag-like in form with the open mouth of the bag-like cap being attached to the collar 1.
- the cap may be attached to the collar 1 by an adhesive or may be attached to the collar 1 by the use of a clamp member which sandwiches the cap between the clamp member and the collar 1 or by any other suitable attachment arrangement.
- the cap may be attached to the first flange 5, the second flange 6, the inner circumferential surface 4, and/or the outer circumferential surface 3.
- the cap may be attached to surfaces 5a,6a and/or the cap may be attached to the opposing surfaces of the flanges 5,6.
- the cap includes one or more apertures to provide additional ventilation during normal use (the or each aperture being configured such that the or aperture is closed by the expanding intumescent material - for example, if exposed to a fire).
- the cap may also be formed from a heat resistant polymer or other material (e.g. steel) and may include an intumescent plate across one or more apertures defined by the cap.
- the intumescent plate may comprise, for example, intumescent material sandwiched between two sheets of heat resistant material (one or which may be a wall of the cap).
- One or more apertures may be provided through the intumescent plate (the apertures being open in normal use but closed if the intumescent material expands - for example, due to exposure to fire.
- the cap preferably includes at least one flexible segment to allow the collar 1 to which it is attached to move between the first and second configurations.
- the cap preferably includes a brim located adjacent the collar 1 to which is it attached.
- the brim may, in an embodiment, extend beyond a remote edge of the first flange 5.
- the intumescent material may expand (in this embodiment) to seal, substantially, any gaps between the collar 1 and panel to which it is fitted (for example, at the break 8 in the collar 1).
- the brim is preferably flexible such that it can be deformed easily to allow manual fitting of the collar 1 to the lamp aperture 10 as described herein.
- the brim if provided, my be located adjacent the first flange 5 or may be adjacent the second flange 6. In the latter case it will be appreciated that the cap may extend through the collar 1 or around the collar 1.
- a cap with a brim may have the general appearance of a top hat.
- a cap without a brim may have the general appearance of an inverted beaker.
- the collar 1 includes a coating of intumescent material around the inner circumferential surface 4 of the collar 1.
- This intumescent material coating may be provided in order to seal, substantially, the lamp aperture 10 in the event of a fire or to close any gap between a lamp fitting 11 fitted to the collar 1 and the inner circumferential surface 4 of the collar 1.
- the collar 1 includes a coating of intumescent material around the outer circumferential surface 3 of the collar 1.
- This intumescent material coating may be provided in order to ensure, substantially, a seal between the outer circumferential surface 3 of the collar 1 and the inner circumferential surface 10a of the lamp aperture 10 in the event of a fire.
- a down-light fitting has also been used by way of example only and it will be appreciated that the same problem may exist in relation to other lamp fittings.
- the present invention may also be used in relation to such fittings where appropriate.
Abstract
Description
- THE PRESENT INVENTION relates to a collar for a lamp aperture, a kit including the collar, a wall to which the collar has been fitted, a building including the wall, and a method of fitting the collar.
- Lamp fittings such as down-light fittings have become popular in recent years. Down-light fittings comprise a hollow cylindrical body which houses the lamp, a flange at one end of the hollow cylindrical body, and an arrangement to secure the hollow cylindrical body to, for example, a ceiling such that the flange abuts the ceiling and the hollow cylindrical body is substantially located above the ceiling (in a roof space - for example).
- Ceilings are usually constructed, at least in part, out of a layer of plaster (such as plasterboard). To fit a down-light, a lamp aperture is created in the layer of plaster and a down-light fitting secured using the arrangement described above - the electrical supply and the like are usually provided above the ceiling.
- If it is ever necessary to remove the down-light fitting, then this can be achieved by, for example, applying a downward force to the flange or cylindrical body. This typically disengages the arrangement which otherwise secures the down-light fitting to the ceiling. During this process, however, it is common for the layer of plaster to be damaged. The damage may be so extensive that it is still visible when a down-light fitting is re-fitted in the ceiling aperture (i.e. the damage is not covered by the flange of the down-light fitting). In yet other cases, the damage is so extensive that the arrangement which normally secures the down-light fitting to the ceiling no longer functions correctly.
- In such instances, it is often necessary to repair the ceiling or replace sections of the plaster layer.
- The present invention seeks to ameliorate some of the problems associated with the prior art.
- Accordingly, one aspect of the present invention provides a lamp aperture collar comprising: a substantially tubular main body having a flexible section and a first flange for at least partially supporting the collar when fitted to a lamp aperture, the first flange extending radially away from the main body, the main body being biased away from a first configuration and into a second configuration by the flexible section, a diameter of the main body being greater in the second configuration than in the first configuration, wherein the main body can be moved towards the first configuration to permit the collar to be placed into a lamp aperture and allowed to move towards the second configuration to fit the collar to the lamp aperture.
- Preferably, the main body further comprises at least one additional flange which is spaced apart from the first flange, a gauge of the collar being defined by the distance between the first flange and at least one additional flange.
- Advantageously, the flexible section comprises a portion of the main body which does not have the first flange.
- Conveniently, the flexible section comprises a portion of the main body which does not have an additional flange.
- Preferably, the main body has a substantially circular cross-section.
- Conveniently, the main body is constructed out of plastic.
- Advantageously the collar further comprises a break in the tubular main body defined between two ends of the main body which substantially oppose each other across the break.
- Preferably, the break is filled with a compressible material which links the two ends of the main body.
- Conveniently, the break is filled with a flexible material which links the two ends of the main body.
- Preferably, the collar further comprises a cap of intumescent material fitted to the main body of the collar and configured to house a lamp fitting therein.
- Another aspect of the present invention provides a lamp fitting kit comprising: a lamp aperture collar according to the above; and a lamp fitting.
- Another aspect of the present invention provides a wall having a lamp aperture to which a lamp aperture collar according to the above.
- Another aspect of the present invention provides a building including a wall according to the above.
- Embodiments of the present invention will now be described, by way of example, with reference to the accompanying drawings in which:
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Figure 1 shows a perspective view of an embodiment of the present invention; -
Figure 2 shows a first side view of an embodiment of the present invention; -
Figure 3 shows a second side view of an embodiment of the present invention; -
Figure 4 shows a perspective view of an embodiment of the present invention; -
Figure 5 shows an embodiment of the present invention; -
Figure 6 shows a sectional view of an embodiment of the present invention; -
Figure 7 shows an embodiment of the present invention; and -
Figure 8 shows a sectional view of an embodiment of the present invention. -
Figures 1 ,2 and 3 show an embodiment of the present invention. The embodiment comprises acollar 1 having amain body 2. Themain body 2 is substantially tubular in shape, and has an outer circumferential surface 3 and an innercircumferential surface 4. Afirst flange 5 extends radially away from the outer circumferential surface 3 of themain body 2 of thecollar 1 in a direction which is substantially perpendicular to the outer circumferential surface 3. Asecond flange 6 extends radially away from the outer circumferential surface 3 of themain body 2 of thecollar 1 also in a direction which is substantially perpendicular to the outer circumferential surface 3 (i.e. the first 5 and second 6 flanges are substantially parallel to each other). - The tubular
main body 2 preferably has a substantially circular cross-sectional shape; alternatively, the tubularmain body 2 may have a substantially square cross-sectional shape. Themain body 2 may be formed from a number of substantially straight sides that form the desired cross-sectional shape.Different collars 1 having different shapes may be provided to fit different shaped lamp apertures. - The first 5 and second 6 flanges are separated from each other across the outer circumferential surface 3 of the
main body 2 of thecollar 1. The distance between opposinginner surfaces 5a,6a of the twoflanges collar 1 is a gauge of thecollar 1. - The first 5 and second 6 flanges preferably extend away from the outer circumferential surface 3 of the
main body 2 by a distance which is greater than about 2 mm. Preferably, this distance is not greater than about 5 cm and is conveniently approximately 1 cm. - The gauge of the collar 1 (as defined above) is substantially equal to the thickness of a typical layer of
plaster 9 used (seefigures 4-8 ), for example, to construct a ceiling. Indeed, the gauge of thecollar 1 is marginally larger than the thickness of therelevant plaster layer 9 so as to allow theplaster layer 9 to be received by thecollar 1 between the twoflanges different collars 1 having different gauges may be provided for use with different thicknesses ofplaster layer 9. Preferably, thecollar 1 gauge is suitable such that plasterboard with a thickness of 9.5 mm or 12.7 mm can be received between the twoflanges collar 1. As such, preferably, acollar 1 may have a gauge of approximately 12.8 mm or approximately 9.6 mm. The gauge of thecollar 1 is preferably less than 5 cm. - The
main body 2 of thecollar 1 is provided with aflexible section 7. Theflexible section 7 biases thecollar 1 away from a first configuration into a second configuration. In the second configuration a diameter of themain body 2 of thecollar 1 is greater than the diameter of themain body 2 of thecollar 1 in the first configuration. - The
flexible section 7 may be such that thecollar 1 can be moved towards the first configuration manually. - In an embodiment, the
flexible section 7 comprises a section of themain body 2 which does not have a first 5 and/or a second 6 flange. Preferably, the arcuate length of theflexible section 7 is less than 5 cm. - In some embodiments, more than one
flexible section 7 is provided around themain body 2 of thecollar 1. Each of the plurality offlexible sections 7 need not be identical. In an embodiment, there may be a series of small flexible sections forming a castellated flange structure. - In an embodiment, the
main body 2 of thecollar 1 includes a break 8. The break 8 is defined between a first 8a and a second 8b edge of themain body 2 of the collar 1 (seefigure 2 ). Preferably, the distance between the first edge 8a and the second edge 8b of themain body 2 of thecollar 1 is less than 2 cm. In an embodiment (not shown), the break 8 comprises a section of flexible or compressible material in themain body 2 of thecollar 1. - The
main body 2 of thecollar 1 is preferably constructed out of plastic. Alternatively, themain body 2 of thecollar 1 can be constructed out of a metal (such as stainless steel, steel, tin or aluminium). In an embodiment, a mixture of both a metal and plastic are used in the construction of themain body 2 of thecollar 1. - The
collar 1 may be fitted to a lamp aperture 10 (seefigure 4 ) by applying a compressive force across a diameter of themain body 2 of thecollar 1. This force flexes theflexible section 7 and closes the break 8 in themain body 2 of thecollar 1. Thus, the overall diameter of themain body 2 of thecollar 1 is reduced. In other words, thecollar 1 is moved towards the first configuration as described above. - The
collar 1 may then be inserted into a lamp aperture in a plaster layer such that the outer circumferential surface 3 of themain body 2 is substantially aligned with an innercircumferential surface 10a of the lamp aperture 10 (seefigure 4 ). In this position, thefirst flange 5 is preferably above the top surface of the plaster layer and thesecond flange 6 is preferably below a lower surface of the plaster layer. - When the compressive force is removed from the
main body 2 of thecollar 1 theflexible section 7 of themain body 2 biases thecollar 1 back towards the second configuration. - When the
collar 1 is allowed to return towards the second configuration, theplaster layer 9 is received (to a greater extent if already partially received) by the space defined between the first 5 and second 6 flanges (and specifically the inner surfaces thereof 5a,6a) and the outer circumferential surface 3 of thecollar 1. - The
first flange 5 of themain body 2 at least partially prevents thecollar 1 from falling through the lamp aperture under the force of gravity. In an embodiment, thefirst flange 5 supports at least part of the weight of thecollar 1 when thecollar 1 has been fitted. - The
collar 1 is thus fitted to alamp aperture 10 in aplaster layer 9. Thecollar 1 remains secured to theplaster layer 9 by, for example, the abutment of theinner surfaces 5a,6a with theplaster layer 9 or, for example, the friction between the outer circumferential surface 3 of thecollar 1 and the innercircumferential surface 10a of thelamp aperture 10. Preferably, theinner surface 5a at least partially supports the weight of the fittedcollar 1. - The inner
circumferential surface 4 of themain body 2 of thecollar 1 defines, when fitted, alamp aperture 10b (seefigures 4 and5 ). - A lamp fitting 11 such as a down-light fitting 11 (see
figures 7 and8 ) may be fitted to thecollar 1 andplaster layer 9 in much the same manner as described above. Thecollar 1, however, protects theplaster layer 9 from excessive damage from insertion and removal of the lamp fitting 11. - The
collar 1 may also support at least part of the weight of the lamp fitting 11 which is fitted thereto. In an embodiment, the first flange 5 (and theinner surface 5a thereof) at least partially supports the weight of a lamp fitting 11 fitted to thecollar 1. - Preferably, when the
collar 1 is fitted, there is still a degree of separation of the first edge 8a and the second edge 8b of themain body 2 across a break 8 and part of thecollar 1 do not overlap each other around thelamp aperture 10. - In an embodiment, the
collar 1 is provided without one or both of the first 5 and second 6 flanges. - A ceiling along with positions and directions relative to that ceiling have been used for illustrative purposes only. The
collar 1 may be fitted to any suitable wall or panel. Similarly, aplaster layer 9 has been described by way of example only and any suitable layer of rigid building material may be used. The wall may be part of a building which may be a domestic or commercial building. - In an embodiment, not shown, a cap is provided which may be attached to the
collar 1 and this attachment may be a removable attachment. The cap could take many different forms. The cap is formed, at least in part, from an intumescent material. In an embodiment, the cap comprises a hood of woven intumescent material which expands when exposed to high temperatures such as a fire. The cap may be configured to cover the rear of a lamp fitting 11 fitted to the collar 1 - i.e. to house a lamp fitting 11. Thus, the cap is, in an embodiment, provided to form a barrier which substantially resists or prevents the passage of fire through thelamp aperture 10 to which thecollar 1 is fitted into a space beyond the cap. In other words, the cap andcollar 1 form a barrier to the transmission of fire from one side of a panel to which thecollar 1 is fitted to the other side of the panel. - If the cap comprises a woven intumescent material, then the gaps between the woven fibres provide ventilation during normal operation but are closed when the intumescent material expands - for example on exposure to fire.
- The woven intumescent material may be a flexible material.
- The cap may be bag-like in form with the open mouth of the bag-like cap being attached to the
collar 1. - The cap may be attached to the
collar 1 by an adhesive or may be attached to thecollar 1 by the use of a clamp member which sandwiches the cap between the clamp member and thecollar 1 or by any other suitable attachment arrangement. The cap may be attached to thefirst flange 5, thesecond flange 6, the innercircumferential surface 4, and/or the outer circumferential surface 3. The cap may be attached tosurfaces 5a,6a and/or the cap may be attached to the opposing surfaces of theflanges - In an embodiment, the cap includes one or more apertures to provide additional ventilation during normal use (the or each aperture being configured such that the or aperture is closed by the expanding intumescent material - for example, if exposed to a fire).
- The cap may also be formed from a heat resistant polymer or other material (e.g. steel) and may include an intumescent plate across one or more apertures defined by the cap. The intumescent plate may comprise, for example, intumescent material sandwiched between two sheets of heat resistant material (one or which may be a wall of the cap). One or more apertures may be provided through the intumescent plate (the apertures being open in normal use but closed if the intumescent material expands - for example, due to exposure to fire.
- The cap preferably includes at least one flexible segment to allow the
collar 1 to which it is attached to move between the first and second configurations. - The cap preferably includes a brim located adjacent the
collar 1 to which is it attached. The brim may, in an embodiment, extend beyond a remote edge of thefirst flange 5. Thus, when exposed to fire, the intumescent material may expand (in this embodiment) to seal, substantially, any gaps between thecollar 1 and panel to which it is fitted (for example, at the break 8 in the collar 1). The brim is preferably flexible such that it can be deformed easily to allow manual fitting of thecollar 1 to thelamp aperture 10 as described herein. - The brim, if provided, my be located adjacent the
first flange 5 or may be adjacent thesecond flange 6. In the latter case it will be appreciated that the cap may extend through thecollar 1 or around thecollar 1. - It will be appreciated that a cap with a brim may have the general appearance of a top hat. A cap without a brim may have the general appearance of an inverted beaker.
- In an embodiment (not shown), the
collar 1 includes a coating of intumescent material around the innercircumferential surface 4 of thecollar 1. This intumescent material coating may be provided in order to seal, substantially, thelamp aperture 10 in the event of a fire or to close any gap between a lamp fitting 11 fitted to thecollar 1 and the innercircumferential surface 4 of thecollar 1. - In an embodiment (not shown), the
collar 1 includes a coating of intumescent material around the outer circumferential surface 3 of thecollar 1. This intumescent material coating may be provided in order to ensure, substantially, a seal between the outer circumferential surface 3 of thecollar 1 and the innercircumferential surface 10a of thelamp aperture 10 in the event of a fire. - A down-light fitting has also been used by way of example only and it will be appreciated that the same problem may exist in relation to other lamp fittings. The present invention may also be used in relation to such fittings where appropriate.
- When used in this specification and claims, the terms "comprises" and "comprising" and variations thereof mean that the specified features, steps or integers are included. The terms are not to be interpreted to exclude the presence of other features, steps or components.
Claims (13)
- A lamp aperture collar (1) comprising:a substantially tubular main body (2) having a flexible section (7) and a first flange (5) for at least partially supporting the collar (1) when fitted to a lamp aperture (10), the first flange (5) extending radially away from the main body (2), the main body (2) being biased away from a first configuration and into a second configuration by the flexible section (7), a diameter of the main body (2) being greater in the second configuration than in the first configuration, wherein the main body (2) can be moved towards the first configuration to permit the collar (1) to be placed into a lamp aperture (10) and allowed to move towards the second configuration to fit the collar (1) to the lamp aperture (10).
- A collar (1) according to claim 1, wherein the main body (2) further comprises at least one additional flange (6) which is spaced apart from the first flange (5), a gauge of the collar (1) being defined by the distance between the first flange (5) and at least one additional flange (6).
- A collar (1) according to claim 1 or 2, wherein the flexible section (7) comprises a portion of the main body (2) which does not have the first flange (5).
- A collar (1) according to claim 3, wherein the flexible section (7) comprises a portion of the main body (2) which does not have an additional flange (6).
- A collar (1) according to any preceding claim, wherein the main body (2) has a substantially circular cross-section.
- A collar (1) according to any preceding claim, wherein the main body (2) is constructed out of plastic.
- A collar (1) according to any preceding claim, further comprising a break (8) in the tubular main body (2) defined between two ends (8a,8b) of the main body (2) which substantially oppose each other across the break (8).
- A collar (1) according to claim 7, wherein the break (8) is filled with a compressible material which links the two ends of the main body (2).
- A collar (1) according to claim 7, wherein the break (8) is filled with a flexible material which links the two ends of the main body (2).
- A collar (1) according to any preceding claim further comprising a cap of intumescent material fitted to the main body (2) of the collar (1), the cap defining a space for housing an electrical fitting, the cap of intumescent material being configured to permit ventilation of the space defined by the cap during normal use and to inhibit the transmission of fire through the cap.
- A lamp fitting kit comprising:a lamp aperture collar (1) according to any preceding claim; anda lamp fitting (11).
- A wall having a lamp aperture (10) to which a lamp aperture collar (1) according to any one of claims 1 to 10 is fitted.
- A building including a wall according to claim 12.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0819354A GB2464697A (en) | 2008-10-22 | 2008-10-22 | A lamp aperture collar |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2180240A1 true EP2180240A1 (en) | 2010-04-28 |
EP2180240B1 EP2180240B1 (en) | 2012-02-22 |
Family
ID=40097828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09173783A Not-in-force EP2180240B1 (en) | 2008-10-22 | 2009-10-22 | A lamp aperture collar |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2180240B1 (en) |
AT (1) | ATE546688T1 (en) |
GB (1) | GB2464697A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2581645A1 (en) * | 2011-10-13 | 2013-04-17 | Daxtor APS | Modular spotlight |
US9677747B2 (en) | 2014-06-02 | 2017-06-13 | RAB Lighting Inc. | Ceiling cutout collar and remodel light fixture |
CN107965738A (en) * | 2017-09-30 | 2018-04-27 | 珠海成盛光电科技有限公司 | A kind of lamp decoration fittings of sliceable combination |
US11408570B2 (en) | 2014-11-26 | 2022-08-09 | Ursatech Ltd. | Downlight firestop |
US11794043B2 (en) * | 2019-12-10 | 2023-10-24 | Ursatech Ltd. | Ceiling fixture firestop |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2479894A (en) * | 2010-04-28 | 2011-11-02 | Harminder Singh Bhogal | Two part ceiling aperture edge protector |
GB2480481A (en) * | 2010-05-20 | 2011-11-23 | John David Flynn | Hole edge protector |
GB2526144A (en) * | 2014-05-16 | 2015-11-18 | Mark Richard Stevens | Aperture liner |
WO2023245224A1 (en) * | 2022-06-20 | 2023-12-28 | Watson Kevin Jason | A collar |
Citations (3)
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WO2000012840A1 (en) | 1998-08-28 | 2000-03-09 | John David Tilbury Burgess | Aperture edging member and method |
DE10248705A1 (en) | 2002-10-18 | 2004-05-06 | Siteco Beleuchtungstechnik Gmbh | Adapter for attaching light components to carrier has devices for mounting adapter on carrier, and light components on adapter so components can be mounted in different positions relative to opening edge |
US20060101741A1 (en) | 2004-11-12 | 2006-05-18 | Andrew Rae | Recess light fixture adapter and method |
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US5045984A (en) * | 1990-08-10 | 1991-09-03 | Charles Trowbridge | Mounting device for releasable securement to a panel |
US5957572A (en) * | 1997-06-27 | 1999-09-28 | Lightolier | Remodeler light fixture support structure and method |
US6719438B2 (en) * | 2002-05-09 | 2004-04-13 | Tripar Inc. | Spring for securing trims in recessed lighting housings |
EP1462710A1 (en) * | 2003-03-25 | 2004-09-29 | Miguel Soriano Sola | Flush fitting trim for a halogen or similar spotlight |
DE102005032264B4 (en) * | 2005-07-04 | 2008-04-30 | Siteco Beleuchtungstechnik Gmbh | Luminaire mounting frame with fastening device |
JP2008066142A (en) * | 2006-09-07 | 2008-03-21 | Matsushita Electric Works Ltd | Embedded illumination fixture |
GB0713264D0 (en) * | 2007-07-09 | 2007-08-15 | Microlights Ltd | Improvements in and relating to luminaries |
-
2008
- 2008-10-22 GB GB0819354A patent/GB2464697A/en not_active Withdrawn
-
2009
- 2009-10-22 AT AT09173783T patent/ATE546688T1/en active
- 2009-10-22 EP EP09173783A patent/EP2180240B1/en not_active Not-in-force
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000012840A1 (en) | 1998-08-28 | 2000-03-09 | John David Tilbury Burgess | Aperture edging member and method |
DE10248705A1 (en) | 2002-10-18 | 2004-05-06 | Siteco Beleuchtungstechnik Gmbh | Adapter for attaching light components to carrier has devices for mounting adapter on carrier, and light components on adapter so components can be mounted in different positions relative to opening edge |
DE10248705B4 (en) * | 2002-10-18 | 2006-02-23 | Siteco Beleuchtungstechnik Gmbh | Adapter for fixing luminaire components and associated luminaire |
US20060101741A1 (en) | 2004-11-12 | 2006-05-18 | Andrew Rae | Recess light fixture adapter and method |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2581645A1 (en) * | 2011-10-13 | 2013-04-17 | Daxtor APS | Modular spotlight |
US9677747B2 (en) | 2014-06-02 | 2017-06-13 | RAB Lighting Inc. | Ceiling cutout collar and remodel light fixture |
US11408570B2 (en) | 2014-11-26 | 2022-08-09 | Ursatech Ltd. | Downlight firestop |
CN107965738A (en) * | 2017-09-30 | 2018-04-27 | 珠海成盛光电科技有限公司 | A kind of lamp decoration fittings of sliceable combination |
US11794043B2 (en) * | 2019-12-10 | 2023-10-24 | Ursatech Ltd. | Ceiling fixture firestop |
Also Published As
Publication number | Publication date |
---|---|
GB2464697A (en) | 2010-04-28 |
EP2180240B1 (en) | 2012-02-22 |
GB0819354D0 (en) | 2008-11-26 |
ATE546688T1 (en) | 2012-03-15 |
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