GB2638474A

GB2638474A - Bracket for a luminaire

Info

Publication number: GB2638474A
Application number: GB2402654.4A
Authority: GB
Inventors: Tao Kuang Wen; Li Rui
Original assignee: Kosnic Lighting Ltd
Current assignee: Kosnic Lighting Ltd
Priority date: 2024-02-26
Filing date: 2024-02-26
Publication date: 2025-08-27
Also published as: WO2025180901A1; GB202402654D0

Abstract

The bracket 101 for a luminaire 100 comprises first 103 and second 104 extension elements pivotably connected to a main body element 102. The extension elements are pivotable to adjust a span between tip regions 116,117 of the extension elements for positioning one or more components 1000,2000 carried by the tip regions. The extension elements may be connected to the main body by respective pivots spaced equidistantly each side of a centre point of the main body. The extension elements may be connected by respective pivots equidistantly spaced either side of the main body, and optionally are rotatable about respective axes 203,204 parallel to a central axis of the main body. The extension elements may be L-shaped, each having a portion extending downwardly from an underside of the main body element. Also claimed is a method of positioning an electrical component relative to a luminaire using the bracket and an emergency LED lighting system comprising the bracket.

Description

BRACKET FORA LUMINAIRE

Field of the Invention

The present invention relates to a bracket for a luminaire, and in particular to a bracket for a high bay luminaire.

Background of the Invention

Different types of brackets for luminaires are known, for example, surface mounting brackets, which are designed to be attached directly to a support such as a wall or a ceiling, or suspension mounting brackets, which are designed to be connected indirectly to an overhead support, such as a ceiling, by a chain or cable. A lighting fixture may be designed with a view to use in a particular application; for example, the design of a lighting fixture intended to be used in a residential environment may have a greater emphasis on features of aesthetic appearance while the design of a lighting fixture intended to be used in an industrial environment may have a greater emphasis on performance characteristics.

Lighting fixtures are known that are designed as low bay fixtures or high bay fixtures. Low bay fixtures are intended for illuminating areas from a lesser height above floor level, such as within a typical specified range of between 12 to 20 feet (3.66 to 6.10 metres), and are therefore more often found in environments having a lower ceiling, for example in workshop units, retail stores and warehousing, whereas high bay fixtures are intended for illuminating areas from a greater height above floor level, such as within a typical specified range of between 20 and 40 feet (6.10 to 12.20 metres), and are therefore more often found environments having a higher ceiling, for example in warehousing and manufacturing sites. A high bay luminaire may differ from a low bay luminaire by having a higher wattage as well as a narrower beam.

Light-emitting diode (LED) lamps are often favoured for exhibiting improved operational efficiency and lifetime when compared to incandescent or fluorescent lamps. An LED luminaire is used with an integral or external LED driver, which regulates the supply of power to the LED light circuit Emergency lighting systems are known that are designed to provide lighting when the normal supply of power to the lighting system of a building fails. A first type of an emergency lighting system is known as a 'maintained' system, which is arranged to utilise an associated battery resource to operate the general lighting load in the event of a power cut situation. A second type of an emergency lighting system is known as a 'non-maintained' system, which is arranged to utilise an associated battery resource to operate an emergency lighting load in the event of a power cut situation.

It is known for an emergency lighting system to include an LED indicator, which is typically green in standard systems or dual-colour of green and red for systems having self-testing functionality. In a standard system, the green LED indicator is always illuminated unless there is a power cut or unless the battery arrangement of the emergency lighting supply is unplugged. This helps an installer or operative to identify the position and the status of the emergency lighting system. In a self-testing system, the LED indicator is normally green but changes to red to report a fault; the LED indicator may flash at one of a plurality of different speeds, each speed associated with a different fault, to indicate a reason for reporting a fault.

It is known for dedicated emergency luminaires, which are usually of the non-maintained type, to be provided with an LED indicator that is incorporated in the product during original manufacture. However, there are numerous applications in which a lighting fixture is to be converted to a maintained emergency system through the addition of an emergency conversion module. GB Patent No. 2 503 708 B discloses a plug-in emergency module that is usable to convert an LED luminaire to a maintained emergency LED luminaire. Although the general lighting system may conveniently include a type of luminaire that features a pre-installed LED indicator that is wired to a connector ready for connection to an emergency conversion module, in many other cases an external LED indicator is required to be installed next to a luminaire, on the same mounting surface, via a separate fixing. GB Patent No. 2 580 893 B discloses an installation element that is usable to install an emergency LED indicator alongside a luminaire.

The present invention provides a bracket for a luminaire, the bracket usable to support at least one electrical component alongside the luminaire.

Summary of the Invention

A bracket for a luminaire comprises a main body element and first and second extension elements each pivotably connected to the main body element. The first and second extension elements are pivotable relative to the main body element to adjust a span between respective tip regions of the first and second extension elements, for positioning the tip regions relative to a luminaire to which the bracket is connected and, in turn, positioning one or more electrical components carried by the first and second extension elements relative to the luminaire. Use of the bracket to position an electrical component relative to the luminaire.

According to a first aspect there is provided a bracket for a luminaire, the bracket comprising: a main body element and first and second extension elements each pivotably connected to the main body element, the main body element having a centre point through which a central axis extends, and comprising a central fixing region for receiving a connection element that is usable in connecting the bracket to the luminaire; the first and second extension elements each having a respective tip region, and the first and the second extension elements pivotable relative to the main body element to adjust a span between the tip regions, for positioning the tip regions relative to the luminaire to position one or more components carried by the first and second extension elements alongside the luminaire.

According to a preferred embodiment, the one or more components carried by the first and second extension elements comprises at least one electrical component The pivotable first and second extension elements enable the position of the one or more components carried by the first and second extension elements relative to the luminaire to be adjusted and/or enable the bracket to be used with differently dimensioned luminaires.

In an example, the first and second adjustment arrangements are spaced equidistantly either side of the centre point of the main body element.

In an example, each of the first and the second adjustment arrangements comprises a threaded opening defined in the main body element and the adjustment element of each of the first and the second adjustment arrangements comprises a threaded shaft that terminates with an abutment surface, the threaded shaft engaged within the threaded opening and rotatable within the threaded opening to adjust said distance, in the depth direction of the main body element, between the abutment surface of the adjustment element and the underside of the main body element In an example, the threaded shaft of the adjustment element of each of the first and the second adjustment arrangements extends from a manually grippable head. In an example, the threaded shafts of the adjustment elements of the first and second adjustment arrangements reach each rotatable about a respective rotation axis that extends parallel to the central axis.

In an example, the first and second extension elements are connected to the main body element by respective pivots that are spaced equidistantly either side of the centre point of the main body element In an example, the first and second extension elements are each rotatable about a respective rotation axis that extends parallel to the central axis.

In an example, each of the first and second extension elements comprises a first portion and a second portion that extends substantially perpendicularly to the first portion to form a general L-shape, and the first portions are connected to the main body element to extend downwardly from the underside of the main body element In an example, an overall length of the bracket, in the length direction of the main body element, is adjustable between a shortest and a longest available overall length by pivoting the first and second extension elements, through substantially 90 degrees of rotation, to move the tip regions thereof towards or away from each other.

In an example, the one or more components carried by the first and second extension elements comprises an LED lamp secured to one of the first and second extension elements. In an example, the one or more components carried by the first and second extension elements further comprises a second LED lamp secured to the other of the first and second extension elements.

In an example, the central fixing region defines an aperture.

According to a second aspect there is provided apparatus, comprising: a bracket according to the first aspect, a luminaire, and a connection element usable in connecting the bracket to the luminaire.

The bracket may be mounted directly to the luminaire.

The luminaire may be a high bay luminaire.

In an example, the central fixing region of the bracket defines an aperture, the luminaire has a threaded opening, and the connection element comprises a threaded shaft and an eye connector, the threaded shaft insertable through the aperture of the central fixing region of the bracket and engageable with the threaded opening of the luminaire to attach the bracket to the luminaire. The eye connector may then be used to suspend the assembled bracket and luminaire from a suitable support surface, for example a ceiling.

According to a third aspect there is provided apparatus according to the second aspect, in which the one or more components carried by the first and second extension elements comprises an LED lamp secured to one of the first and the second extension elements and optionally further comprises a second LED lamp secured to the other of the first and the second extension elements, and an emergency lighting module, operatively connectable to the luminaire and to the or each LED lamp, the emergency lighting module comprising a battery resource and a controller, the controller configured to detect a cut in the supply of mains power to the luminaire and, in response, to provide power to the or each LED lamp from the battery resource.

The bracket may be mountable to the emergency light module.

According to a fourth aspect there is provided a method of positioning an electrical component relative to a luminaire, comprising the steps of: receiving a bracket according to the first aspect, connecting the bracket to the luminaire, and pivoting at least one of the first and second extension elements relative to the main body element to select a span between the tip regions of the first and second extension elements for positioning the one or more components carried by the first and second extension elements relative to the luminaire.

According to a fifth aspect there is the use of a bracket according to the first aspect to position an electrical component alongside a luminaire that is installed using a suspended mounting arrangement.

In an application, the luminaire is a high bay luminaire.

The present invention thus provides a bracket for use in positioning a component adjacent a luminaire, in particular a luminaire that is installed using a suspended mounting arrangement.

Further particular and preferred aspects of the invention are set out in the accompanying dependent claims.

Brief Description of the Drawings

The present invention will now be more particularly described, with reference to the accompanying drawings, in which: Figure I shows a perspective view of a bracket for a luminaire, according to an embodiment; Figure 2 shows a front view of the bracket of Figure I, with the bracket in a first configuration; Figure 3 shows a perspective view of the bracket of Figure I and a luminaire, prior to attachment of the bracket to the luminaire and with the bracket in a second configuration; Figure 4 shows a perspective view of the bracket of Figure I mounted to the luminaire of Figure 2, with the bracket in the first configuration; Figure 5 shows a perspective view of the bracket of Figure I mounted to the luminaire of Figure 2, with the bracket in the second configuration; Figures 6, 7, 8, & 9 show a first side view, a bottom view, a top view, and a second side view respectively of the bracket of Figure I connected to the luminaire of Figure 2 and in the second configuration shown in Figure 5; Figure I 0 shows an exploded view of the bracket of Figure I; Figures I I & I 2 show a front view and a perspective view respectively of the bracket of Figure I mounted to an emergency lighting module to which the luminaire of Figure 2 is connectable.

Description

Illustrative embodiments and examples are described below in sufficient detail to enable those of ordinary skill in the art to embody and implement the apparatus described herein. It is to be understood that embodiments and examples can be provided in many alternate forms and the invention should not be construed as limited to the embodiments and examples set forth herein but by the scope of the appended claims.

Unless otherwise defined, all terms (including technical and scientific terms) used herein are to be interpreted as is customary in the art. In addition, features referred to herein in the singular can number one or more, unless the context clearly indicates otherwise. Similarly, the terms "comprises", "comprising", "includes", "including", "has" and/or "having" when used herein, specify the presence of the stated feature or features and do not preclude the presence or addition of one or more other features, unless the context clearly indicates otherwise.

In the following description, all orientational terms, such as upper, lower, radially and axially, are used in relation to the drawings and should not be interpreted as limiting on the invention, unless the context clearly indicates otherwise.

The drawings are not necessarily drawn to scale, and in some instances the drawings may have been exaggerated or simplified for illustrative purposes only.

The present invention provides a bracket for a luminaire. The bracket is designed for carrying at least one electrical component, such as an LED lamp, to be positioned relative to the luminaire.

A bracket 101 for a luminaire, according to a specific embodiment, is shown in Figures I to 12. The bracket 101 is particularly suitable for use with a high bay luminaire, such as the high bay luminaire 100 having a generally circular shape illustrated in Figures 3 to 9.

To facilitate explanation of the present invention, bracket 101 will be described hereinafter with reference to use with luminaire 100; however, it is to be understood that a bracket according to the present invention is not limited to use with the illustrated luminaire 100 and that brackets embodying the present invention may be usable with luminaires that differ from the illustrated luminaire 100.

Referring initially to Figures I and 2, bracket 101 comprises a main body element 102 and first and second extension elements 103, 104, each of the first and the second extension elements 103, 104 pivotably connected to the main body element 102.

The bracket 101 is utilisable to support at least one component relative to, and in particular alongside, the luminaire 100. According to the specific illustrated example, bracket 101 carries first and second electrical components 1000, 2000, each of which is a light-emitting diode (LED) lamp.

The main body element 102 has a centre point 105, through which a central axis CA of the bracket 101 extends.

According to the illustrated embodiment, the main body element 102 has a length direction L, a width direction W and a depth direction D. In this specific illustrated example, the main body element 102 is elongate, having first and second ends 106, 107 displaced from each other in the length direction L, first and second sides 108, 109 displaced from each other in the width direction W, and a topside 110 and an underside 11 I displaced from each other in the depth direction D. According to the illustrated embodiment, the underside III and the topside of the main body element 102 are substantially planar and the main body element 102 has a substantially uniform thickness.

The main body element 102 comprises a central fixing region, indicated at 112. The central fixing region 112 is usable to connect the main body element 102, and in turn the bracket 101, with the luminaire 100.

According to the illustrated embodiment, the central fixing region 105 is configured to receive a connection element, for providing a link between the bracket 101 and the luminaire 100. It is to be appreciated that the bracket 101 and the luminaire 100 may be connected directly (an example of which is shown in Figures 4 to 9) or indirectly (an example of which is shown in Figures 11 & 12).

A connection element 301 is illustrated in Figure 3 that is receivable by the central fixing region 105 and engageable with the luminaire 100 to attach the bracket 101 to the luminaire 100. In a preferred application, the connection element is releasably engageable with the luminaire. In a preferred application, the connection element is releasably engageable with the bracket and with the luminaire.

According to the illustrated example, the central fixing region 112 defines an aperture 113. The aperture 113 has a centre that coincides with the centre point 105 of the main body element 102, through which the central axis CA of the bracket 101 extends. In this specific illustrated example, the aperture 113 is substantially circular, but may be any suitable alternative shape.

According to the specific illustrated example, connection element 301 comprises a threaded shaft 302 and an eye connector 303. The threaded shaft 302 is engageable with a threaded opening 304 of the luminaire 100. The connection element 301 is insertable through the main body element 102, from the topside 110 towards the underside III, and securable to the luminaire 100 through rotation of the threaded shaft 302, in a tightening direction, into the threaded opening 304. Preferably, the connection element 301 is subsequently releasable from the luminaire 100, through rotation of the threaded shaft 302, in a loosening direction, opposite the tightening direction, out of the threaded opening 304.

The eye connector 303 is provided for use in suspending the luminaire 100 from a suitable support surface, for example a ceiling. The eye connector 303 may be coupled to any suitable connector device, for example, but not limited to, a hook or a clip, such as carabiner 601 illustrated Figure 6, or to a loop of any suitable tethering element, for example, but not limited to, a chain or a cable.

As shown, the threaded opening 304 of the luminaire 100 is substantially central of the luminaire 100; when the bracket 101 is attached to the luminaire 100 by means of the connection element 301 being engaged with the luminaire 100, the central axis CA of the bracket 101 is aligned with a central axis CA-L of the luminaire 100.

Preferably, and according to the specific illustrated embodiment, the bracket 101 is provided with first and second adjustment arrangements 114, 115, which are described below.

According to the specific illustrated embodiment, each of the first and second extension elements 103, 104 has a tip region, indicated at 116, 117. The first and the second extension element 103, 104 are each pivotable relative to the main body element 102 to adjust a span S between the tip regions 116, 117.

According to the specific illustrated example, the first and second extension elements 103, 104 are displaced from each other, in the length direction L of the main body element 102.

According to the specific illustrated example also, each of the tip regions 116, 117 of the first and second extension elements 103, 104 is displaced from the central fixing region 112, in the depth direction D of the main body element 102.

According to the specific illustrated example, the first and second extension elements 103, 104 have the same configuration and are connected to the main body element 102 by respective pivots 118, 119 that are spaced equidistantly either side of the centre point 105.

In the specific illustrated example, the pivots 118, 119 are displaced outwardly of the first and the second adjustment arrangements 114, 115, in the length direction L of the main body element 102, such that the first and second extension elements 103, 104 are disposed between the Therefore, according to the specific illustrated example the first and the second extension element 103, 104 are each rotatable about a respective rotation axis 201, 202 to adjust the span S between the tip regions 116, 117. Each of the rotation axes 201, 202 extends in the depth direction D of the main body element 102. The first and the second extension element 103, 104 are each rotatable about their respective rotation axis 201, 202 in the opposite directions indicated at 203, 204 respectively.

The span S between the tip regions 116, 117 of the first and second extension elements 103, 104 of the bracket 101 is adjustable for positioning the tip regions 116, 117 relative to the luminaire 100, to locate the one or more components 1000, 2000 supported by the first and second extension elements 103, 104 alongside the luminaire 100.

According to the illustrated embodiment, the first and second extension elements 103, 104 each comprise a first portion 205, 206 and a second portion 207, 208 that extends substantially perpendicularly to the first portion 205, 206 to form a general L-shape. According to the specific illustrated example, the first portions 205, 206 of the first and second extension elements 103, 104 are connected to the main body element 102 to extend downwardly from the underside 1 1 1 of the main body element 102, substantially normal to the underside III of the main body element 102.

In the specific shown example, each of the components 1000, 2000 is attached to the bracket 101 to extend downwardly from a respective one of the first and second extension elements 103, 104.

In Figures I and 2, the bracket 101 is shown in a first configuration, in which the first and second extension elements 103, 104 and main body element 102 extend linearly. According to the illustrated embodiment, when the bracket 101 is in the shown first configuration, the main body element 102, the first extension element 103 and the second extension element 104 are in an arrangement in which they are substantially symmetrical about the central axis CA as a mirror line of a side view of the main body element 102 (see Figure 2). According to the specific illustrated example, when the bracket 101 is in the shown first configuration, the arrangement of the main body element 102, the first extension element 103 and the second extension element 104 is also substantially symmetrical about a longitudinal axis LA as a mirror line of an end view of the main body element 102 (see Figure 1).

As indicated in Figure I, the bracket 101 is configurable from the shown first configuration, in which the first and second extension elements 103, 104 each extend at a substantially 0-degree angle to the longitudinal axis LA, into a second configuration, in which the first and second extension elements 103, 104 each extend at a substantially 90-degree angle to the longitudinal axis LA, pointing in the same direction around the centre point 105 of the main body element 102.

The bracket 101 is reconfigurable between the shown first and second configurations, through swinging the first and second extension elements 103, 104 relative to the main body element 102, in the same direction of rotation about the respective rotation axis 201, 202.

According to this specific illustrated example, the overall length of the bracket 101, in the length direction L of the main body element 102, is adjustable between a shortest and a longest available overall length by pivoting the first and the second extension elements 103, 104, through substantially 90 degrees of rotation, to move the tip regions 116, 117 thereof towards or away from each other.

When the bracket 101 is in the first configuration, the span S between the tip regions 116, I of the first and second extension elements 103, 104 is at a maximum extent achievable through the pivoting of the first and second extension elements 103, 104 and, conversely, when the bracket 101 is in the second configuration, the span S between the tip regions 106, 107 of the first and second extension elements 103, 104 is at a minimum extent achievable through the pivoting of the first and second extension elements 103, 104.

It Is to be understood that the minimum span Smin and the maximum span Smax represent the ends of a continuous range of achievable spans, and that any intermediate extent of span between the minimum span extent Smin and the maximum span extent Smax may be selected. This advantageously enables the bracket to be used on a luminaire having any diameter (or width dimension if the luminaire is not circular) falling within the range of achievable spans.

According to the specific illustrated embodiment, the weight of the bracket 101 is balanced about the central axis CA (when the first and second extension elements 103, 104 extend linearly with the main body element 102 and when angled similarly and oppositely with respect to the main body element 102).

According to the specific illustrated example, the weight of the bracket 101 and the at least one component 1000, 2000 carried by the bracket 101 is so balanced about the central axis CA. The feature of the weight of the bracket 101 (and the at least one supported component 1000, 2000) being balanced in this way is advantageous since when the bracket 101 is attached to the luminaire 100 by the connection element 301, the assembly is suspendable using the connection element 301.

According to the specific illustrated example, the tip regions 106, 107 of the first and second extension elements 103, 104 each carries a respective component 1000, 2000.

It is to be appreciated however that it is possible for the first and second extension elements 103, 104 to carry one or more other types of component or components and that a component carried by the first or the second extension element 103, 104 may be electrically active or electrically passive. It is also to be understood that the first and second extension elements 103, 104 may carry only one, or more than one, component, and that the first and second extension elements 103, 104 may carry different components.

According to the specific illustrated example, each of the first and second extension elements 103, 104 carries a respective LED lamp 1000, 2000. In an alternative specific example, one of the first and second extension elements 103, 104 carries an LED lamp or other electrically active component and the other of the first and second extension elements 103, 104 carries a counterweight or other electrically passive component.

A bracket according to the present invention may be used to position a component that is, or is comprised by, a peripheral device relative to a luminaire.

Figures 3 to 5 show steps in using bracket 101 to position components 1000 and 2000 beside the luminaire 100. In Figure 3, the backet 101 is shown prior to being attached to the luminaire 100. The bracket 101 is shown above the luminaire 100, with the underside I I I of the main body element 102 facing towards the luminaire 100 and with the aperture 113 of the central fixing region 112 generally aligned with the threaded opening 304 of the luminaire 100, ready for the threaded shaft 302 of the connection element 301 to inserted through the aperture 113 of the main body element 102, and into engagement with the threaded opening 304 of the luminaire 100 to attach the bracket 101 to the luminaire 100 securely. The bracket 101 and luminaire 100 are shown in Figure 4 in an assembled condition, fixed together by means of the connection element 301. In Figure 4, the bracket 101 is shown in the first configuration, in which the span S between the tip regions 116, 117 of the first and second extension elements 103, 104 is at the maximum extent Smax. Thus, with the bracket 101 attached to the luminaire 100 as shown, the components 1000, 2000 are spaced apart a greatest distance, on diametrically opposite sides of the luminaire 100. To close the distance between each of the components 1000, 2000 and the luminaire 100, the first and second extension elements 103, 104 are rotatable about their respective rotation axis 201, 202, towards the periphery 1100 of the luminaire 100. The components 1000, 2000 are shown in Figure 5 in a desired position alongside the luminaire 100, following any required adjustment of the bracket 101 to fit the luminaire 100.

A specific application in which the bracket 101 is used with the luminaire 100 will now be described in further detail with reference to Figures 6 to 9.

The LED lamps 1000, 2000 are operatively connected to an emergency lighting module 602, which is operatively connected to the luminaire 100. According to the specific illustrated embodiment, the emergency lighting module 602 is electrically connected to the LED lamps 1000, 2000 by a first cabling arrangement 603 and to the luminaire 100 by a second cabling arrangement 604. According to this specific illustrated example, the emergency lighting module 602 comprises a battery resource, indicated at 605, and a controller, indicated at 606. The controller 606 is configured to detect a cut in the supply of mains power to the luminaire 100 and, in response, to provide power to the LED lamps 1000, 2000 from the battery resource 605.

As shown, according to this specific illustrated example, the emergency lighting module 602 comprising a housing 607 that provided with a pair of eye connectors 608, 609 at opposite ends 610, 611 thereof. In Figure 6, carabiner 601 is shown coupled also to the eye connector 608 at the lowermost end 610 of the housing 607. The eye connector 609 at the uppermost end 610 of the housing 607 allows the emergency lighting module 602 to be suspended. The emergency lighting module 602 has a central axis CA-EM. When the emergency lighting module 602, carabiner 601, bracket 101 and luminaire 100 are assembled as shown in Figure 6, the central axes CA-EM, CA, CA-L of the emergency lighting module 602, bracket 101 and luminaire 100 are aligned. This feature serves to contribute to the proper orientation of the luminaire 100 when suspended from a suitable support surface, such as a ceiling, with the light-emitting face 701 of the luminaire 100 extending in a (horizontal) plane through which the (vertical) central axis CA-L of the luminaire 100 extends.

As mentioned previously, the bracket 101 is particularly suitable for use with a high bay luminaire. A high bay luminaire is typically used to illuminate an area from a relatively high position above floor level, often being installed at a height of at least 20 feet (6.10 metres) above a floor. The greater the height of the light fixture above the floor, the greater the effect at floor level that any misalignment of the light fixture will have on the beam of light emitted.

When a high bay luminaire is suspended, for example hanging from a chain, if it is not properly balanced, the emitted beam of light will be offset An imbalance at the installation position of the luminaire may arise from, for example, uneven weight distribution, which can be experienced when a peripheral device or component such as a sensor or LED indicator is added to the luminaire.

A small angle of error in the orientation of a suspended high bay luminaire can result in a significant deviation in the direction that light is emitted. Thus, improper orientation of the luminaire can be considerably detrimental to the quality of the illumination provided.

According to the specific illustrated embodiment, the main body element 102 of the bracket 1 0 I is provided with first and the second adjustment arrangements 114, 115. According to the specific illustrated example, the first and second adjustment arrangements 1 14, 1 I5 are displaced from each other, and each outwardly of the central fixing region 112, in the length direction L of the main body element 102. According to the specific illustrated example, the first and second adjustment arrangements 114, 115 have the same configuration and are spaced equidistantly either side of the centre point 105.

According to specific illustrated example, the first and the second adjustment arrangements 1 14, 115 each comprise an adjustment element 209, 210 having an abutment surface 211, 212 that is movable with respect to the underside 111 of the main body element 102 to selectively adjust a distance, in the depth direction D of the main body element 102, between the abutment surface 211, 212 and the underside 1 11 of the main body element 102.

According to the illustrated embodiment, the adjustment elements 209, 210 of the first and second adjustment arrangements 114, 115 comprise a threaded shaft 213, 214 that terminates with the abutment surface 2 1 1, 212 and is engaged with a threaded opening 215, 216, in the main body element 102. The threaded shaft 213, 214 extends from a head 217, 218. The threaded shafts 213, 214 are each rotatable about a respective rotation axis 219, 220, in the opposite directions indicated at 221, 222 respectively. The threaded shafts 213, 214 are each rotatable in one direction of rotation to move the abutment surface 21 I, 212 further away from the underside 1 I 1 of the main body element 102 (to increase the distance between them in the depth direction D) and in the other direction of rotation to move the abutment surface 2 1 1, 212 closer to the underside 111 of the main body element 102 (to decrease the distance between them in the depth direction D). Preferably, the head 217, 218 is manually grippable, for turning manually, so that the extent that the abutment surfaces 211, 212 are displaced from the underside 1 11 of the main body element 102 can be varied by hand.

According to the specific illustrated example, the rotation axes 219, 220 extend parallel to the central axis CA. As shown, and further according to this specific illustrated example, the rotation axes 219, 220 extend parallel to rotation axes 203, 204 and the central axis CA.

With reference to Figure 6 and also to Figure 2, when the bracket 101 is attached to the luminaire 100 as shown in Figure 6, each of adjustment elements 209, 210 is movable, independently, to selectively bring the respective abutment surface 211, 212 into contact with the luminaire 100. Further, the distance that an abutment surface 211, 212 is moved away from the underside III of the main body element 102 is variable, as described previously.

The first and second adjustment arrangements 114, 115, being provided on diametrically opposite sides of the luminaire 100, are usable to adjust the angle that a beam of light will be emitted from the LED lamps 1000, 2000. The bracket 101 is configured such that moving the abutment surfaces 211, 212 away from the underside III of the main body element 102, against the luminaire 100, imparts a curvature within the main body element 101, about the central axis CA, that, in turn, adjusts the angle at which the LED lamps 1000, 2000 point relative to the central axis CA. The further the abutment surfaces 211, 212 are moved away from the underside III of the main body element 102, the greater the convex curvature imparted into the main body element 102.

An exploded view of bracket 101 is shown in Figure 10. It is to be appreciated that a component 1000, 2000 may be secured to an extension element 103, 104 in any suitable way. According to specific illustrated example, the tip regions 116, 117 of the extension elements 103, 104 each define at least one aperture therethrough, such as apertures 1001, 1002, for receiving a mechanical fixing element, such as bolts 1003, 1004, for fixing a respective component 1000, 2000 to the bracket 101.

In Figures 4-9, the bracket 101 is shown mounted to the luminaire 100, with the bracket 101 and the luminaire 100 linked directly by connection element 301. The bracket 101 and luminaire may however be linked indirectly, via one or more connection elements. The or each connection element used in connecting the bracket 101 and the luminaire 100 may have any suitable form and may provide another function other than providing a link between the bracket 101 and the luminaire.

In Figures 1 1 & 12, the bracket 101 is shown mounted to emergency lighting module 602 The emergency lighting module 602 is in turn connectable to luminaire 100 (not shown in Figures 1 I & 12) by means of carabiner 601 (or other suitable connector device) coupled to the eye connector 608 of the emergency lighting module 602.

According to the specific illustrated example, the bracket 101 is shown extending under the lowermost end 610 of the housing 607 of the emergency lighting module 602 and above the eye 1201 of the eye connector 608.

It is therefore to be appreciated that a bracket as disclosed herein may be connected to a luminaire using any suitable connector or connectors and using one or more suitable intermediate connection elements.

A bracket as disclosed herein may be fabricated from any suitable material or combination of materials, may be manufactured using any suitable process or combination of processes, may have any suitable dimensions, may have any desired aesthetic qualities, and may have any properties or characteristics appropriate for a particular application. In an embodiment, the bracket comprises a metal material.

The pivotable first and the second extension elements of a bracket as disclosed herein enable the position of the one or more components carried by the first and second extension elements relative to the luminaire to be adjusted and/or enable the bracket to be used with differently dimensioned luminaires.

A bracket as disclosed herein may have any suitable number of pivotable extension elements ("swing arms"). A bracket as disclosed herein may have multiple pivotable extension elements ("swing arms") arranged to be rotatable around the same rotation axis.

Although illustrative embodiments and examples of the invention have been disclosed in detail herein, with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiment and examples shown and/or described and that various changes and modifications can be effected therein by one skilled in the art without departing from the scope of the invention as defined by the appended claims.

Claims

Claims I. A bracket for a luminaire, the bracket comprising: a main body element and first and second extension elements each pivotably connected to the main body element, the main body element having a centre point through which a central axis extends, and comprising a central fixing region for receiving a connection element that is usable in connecting the bracket to the luminaire; the first and second extension elements each having a respective tip region, and the first and the second extension elements pivotable relative to the main body element to adjust a span between the tip regions, for positioning the tip regions relative to the luminaire to position one or more components carried by the first and second extension elements relative to the luminaire.
2. The bracket of claim I, wherein the first and the second adjustment arrangements are spaced equidistantly either side of the centre point of the main body.
3. The bracket of claim I or claim 2, wherein each of the first and the second adjustment arrangements comprises a threaded opening defined in the main body element and the adjustment element of each of the first and the second adjustment arrangements comprises a threaded shaft that terminates with an abutment surface, the threaded shaft engaged within the threaded opening and rotatable within the threaded opening to adjust said distance, in the depth direction of the main body element, between the abutment surface of the adjustment element and the underside of the main body element
4. The bracket of claim 3, wherein the threaded shaft of the adjustment element of each of the first and the second adjustment arrangements extends from a manually grippable head.
5. The bracket of claim 3 or claim 4 wherein each of the threaded shafts of the adjustment element of each of the first and the second adjustment arrangements is rotatable about a respective rotation axis that extends parallel to the central axis.
6. The bracket of any one of claims I to 5, wherein the first and second extension elements are connected to the main body element by respective pivots that are spaced equidistantly either side of the centre point of the main body.
7. The bracket of any one of claims I to 6, wherein each of the first and second extension elements is rotatable about a respective rotation axis that extends parallel to the central axis.
8. The bracket of any one of claims I to 7, wherein each of the first and second extension elements comprises a first portion and a second portion that extends substantially perpendicularly to the first portion to form a general L-shape, and the first portions are connected to the main body element to extend downwardly from the underside of the main body element
9. The bracket of any one of claims I to 8, wherein an overall length of the bracket, in the length direction of the main body element, is adjustable between a shortest and a longest available overall length by pivoting the first and the second extension elements, through substantially 90 degrees of rotation, to move the tip regions thereof towards or away from each other.
10. The bracket of any one of claims I to 9, wherein said one or more components carried by the first and second extension elements comprises an LED lamp secured to one of the first and the second extension elements.
I I. The bracket of claim 10, wherein said one or more components carried by the first and second extension elements further comprises a second LED lamp secured to the other of the first and the second extension elements.
I 2. The bracket of any of claims I to 1 I, wherein the central fixing region defines an 30 aperture.
I 3. Apparatus, comprising: a bracket according to any one of claims I to 12, a luminaire, and a connection element usable in connecting the bracket to the luminaire.
14. The apparatus of claim 12, wherein the luminaire is a high bay luminaire. 5
15. The apparatus of claim 13 or claim 14, wherein: the bracket is according to claim 12, the luminaire has a threaded opening, and the connection element comprises a threaded shaft and an eye connector, the threaded shaft insertable through the aperture of the central fixing region of the bracket and engageable with the threaded opening of the luminaire to attach the bracket to the luminaire.
16. An emergency LED lighting system, comprising: the apparatus of any one of claims 13 to 15, in which the bracket is according to claim or claim I I, and an emergency lighting module, operatively connectable to the luminaire and to the or each LED lamp, the emergency lighting module comprising a battery resource and a controller, the controller configured to detect a cut in the supply of mains power to the luminaire and, in response, to provide power to the or each LED lamp from the battery resource.
I 7. The emergency LED lighting system of claim 16, wherein the bracket is mountable to the emergency lighting module.
I8. A method of positioning an electrical component relative to a luminaire, comprising the steps of: receiving the bracket of any one of claims I to 12, connecting the bracket to the luminaire, and pivoting at least one of the first and second extension elements relative to the main body element to select a span between the tip regions of the first and second extension elements for positioning the one or more electrical components carried by the first and second extension elements relative to the luminaire.
19. Use of a bracket according to any one of claims I to 12 to position an electrical component alongside a luminaire that is installed using a suspended mounting arrangement,
20. Use according to claim 19, wherein the luminaire is a high bay luminaire.