EP3803202A1 - Light fitting for attaching a pendant lamp to a ceiling - Google Patents

Light fitting for attaching a pendant lamp to a ceiling

Info

Publication number
EP3803202A1
EP3803202A1 EP19811182.5A EP19811182A EP3803202A1 EP 3803202 A1 EP3803202 A1 EP 3803202A1 EP 19811182 A EP19811182 A EP 19811182A EP 3803202 A1 EP3803202 A1 EP 3803202A1
Authority
EP
European Patent Office
Prior art keywords
light fitting
hook
ceiling
length
attaching
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
Application number
EP19811182.5A
Other languages
German (de)
French (fr)
Other versions
EP3803202A4 (en
Inventor
Thea SVENSSON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ikea Supply AG
Original Assignee
Ikea Supply AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ikea Supply AG filed Critical Ikea Supply AG
Publication of EP3803202A1 publication Critical patent/EP3803202A1/en
Publication of EP3803202A4 publication Critical patent/EP3803202A4/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • F21S8/061—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension with a non-rigid pendant, i.e. a cable, wire or chain
    • 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
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • F21S8/063—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension with a rigid pendant, i.e. a pipe or rod
    • 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
    • F21V17/14—Bayonet-type fastening
    • 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
    • F21V21/008—Suspending from a cable or suspension line
    • 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
    • F21V21/03—Ceiling bases, e.g. ceiling roses
    • 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
    • F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
    • F21V21/104—Pendants
    • 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
    • F21V21/14—Adjustable mountings
    • 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
    • F21V21/14—Adjustable mountings
    • F21V21/16—Adjustable mountings using wires or cords
    • 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
    • F21V21/36—Hoisting or lowering devices, e.g. for maintenance
    • 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
    • F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels 
    • F21V27/02—Cable inlets

Definitions

  • the present invention relates to the technical field of light fittings and to lamps in general. More specifically, the present invention relates to a light fitting for attaching a lamp to a ceiling, to a lamp comprising such a light fitting and to a method for attaching a light fitting to a ceiling.
  • Light fittings are well known products used for instance for attaching lamps to ceilings. They usually comprise both electrical connections as well as some sort of means for supporting the weight of the lamp, which in some cases is the electrical cord and in some cases is a separate wire or similar. As light fittings are often visibly mounted to a ceiling, they are preferably designed to be aesthetically pleasing and they may for this reason comprise covers or ceiling roses which cover the interior components of the light fitting.
  • Light fittings which are configured to attach a lamp to a ceiling may be configured to be attached to the ceiling in a number of ways. Commonly used methods include screws and hooks which are pre-mounted to the ceiling, to name a few. It is a common problem when mounting pendant lamps that it is difficult to achieve a desired hanging height of the lamp, as this often requires the person hanging the lamp having to tediously adjust the length of the cord/wire which attaches the lamp to the light fitting. Access to the internal components of the light fitting such as the electrical connectors and/or the means for hanging the light fitting may also be limited.
  • a light fitting for attaching a pendant lamp to a ceiling comprises a first member attachable to the ceiling and a second member. A first end of said second member is connected to the first member and a second end is connected directly or indirectly to the lamp, such that the second end protrudes outside, or out of, the first member in a direction towards the pendant lamp.
  • the length of the part of the second member protruding outside the first member is adjustable. In some embodiments the hanging height of the lamp is thus conveniently adjustable by altering the second member protrusion length. In other embodiments, adjustment of the length of the part of the second member protruding outside the first member allows for easy access when mounting the lamp.
  • the light fitting further comprises a housing member configured to at least partly cover the first member.
  • the housing member comprises a first hole through which the second member extends.
  • the adjustable length of protrusion of the second member facilitates mounting of the housing member as well as simplifies access to the parts of the light fitting that are configured to be covered by the housing member.
  • the first hole of the housing member may be configured to be essentially axially aligned with the first member.
  • the first member may comprise a thread and the light fitting further comprises a nut through which the second member extends and which is configured to engage with the thread of the first member.
  • the nut is axially moveable relative the second member and rotatable in relation to the light fitting.
  • the nut may comprise a flange configured to vertically support the housing member. As the second member is moveable in relation to the nut and the housing member that the nut supports, access during mounting is improved even when the housing member is mounted to the light fitting.
  • the second member is a wire.
  • the first member may be provided with a lock member configured to allow unrestricted movement of the wire in a direction towards the first member and to restrict, or even prevent, movement of the wire in a direction away from the first member. A safe adjustability of the length of wire protrusion is thus provided.
  • Unwanted extension of the wire is avoided, as the lock member must be actively released, e.g. by depressing a lock release member, for extension of the wire to occur.
  • the lock member is arranged concentrically around the wire.
  • the second member is an elongated hook.
  • the hook may be configured to, in a first rotational position in relation to the first member, allow for a first extension of the hook out of the first member and in a second rotational position in relation to the first member allow for a second extension of the hook outside, or out of, the first member.
  • the first extension is larger, or longer, than the second extension. The length of hook protrusion is thus determined by the rotational position of the hook in relation to the first member.
  • first rotational position and the second rotational positions are offset by approximately 90° in relation to each other.
  • the hook at its first end comprises a pin protruding from at least one side of the hook in a direction essentially perpendicular to the extension of the hook.
  • the pin is arranged diametrically trough the hook.
  • the pin may be configured to be vertically moveable in at least one vertical slit provided in the first member.
  • the slit is limited by a slit stop arranged in a first end of the slit and defining the length of the first extension of the hook.
  • the pin can be rotated in one or more recesses arranged in a second end of the slit to engage with a shelf arranged in the second end of the slit, the shelf defining the length of the second extension of the hook.
  • Each shelf may comprise a shelf stop that requires the hook to be further inserted into the first member to allow rotation into and out of the first rotational position.
  • a lamp for attachment to a ceiling, the lamp comprises a light fitting according to the first aspect.
  • a method for mounting the light fitting according to the first aspect to a ceiling comprises the steps of: attaching the first member of the light fitting to the ceiling and adjusting the length of a part of the second member protruding out of the first member.
  • the hanging height of the lamp attached to the light fitting can thereby be altered after it is mounted to the ceiling.
  • the protrusion may also be altered when the light fitting is not yet mounted to the ceiling.
  • the method for mounting the lamp comprises the steps of: adjusting the length of a part of the second member protruding out of the first member to facilitate access to the first member, attaching the first member of the light fitting to the ceiling, attaching the nut to the first member and thereby attaching the housing member to the first member and adjusting the length of a part of the second member protruding out of the first member to a desired length.
  • the method for mounting the light fitting comprises the steps of: adjusting the length of a part of the wire protruding out of the first member by unlocking the lock member to allow for an extension of the wire to a length facilitating access to the first member, attaching the first member of the light fitting to the ceiling, attaching the nut to the first member and thereby attaching the housing member to the first member and adjusting the length of a part of the wire protruding out of the first member to a desired length by feeding the wire towards the first member.
  • the method for mounting the light fitting comprises the steps of: adjusting the length of a part of the hook protruding out of the first member by rotating the hook to the first rotational position to allow for an extension of the hook to a length facilitating access to the first member, attaching the first member of the light fitting to the ceiling, attaching the nut to the first member and thereby attaching the housing member to the first member and adjusting the length of a part of the hook protruding out of the first member to a desired length by feeding the hook towards the first member and the rotating it into the second rotational position.
  • Fig. 1 shows a pendant lamp according to one embodiment
  • Fig. 2 shows a pendant lamp according to one embodiment
  • Figs. 3-5 show light fittings according to different embodiments
  • Figs. 6 and 7 show adjustment of the protrusion of the second member of a light fitting
  • Fig. 8 shows a cross-sectioned view of a light fitting according to one embodiment
  • Fig. 9 shows a light fitting according to one embodiment
  • Fig. 10 shows a light fitting according to one embodiment
  • Fig. 11 shows a first member of a light fitting according to one embodiment
  • Figs. l2a-b show a hook of a light fitting according to one embodiment
  • Fig. 13 shows a pin for a hook of a light fitting according to one embodiment
  • Figs. l4a-b show adjustment of the protrusion of a hook of a light fitting according to one embodiment
  • Figs. 15-18 are schematic illustrations of methods for attaching the light fitting to a ceiling according to different embodiments. Detailed Description of Embodiments
  • the lamps 30, 40 are typically hanged from a ceiling by means of a first member 11, 21 (Figs. 3 and 9, respectively) of an associated light fitting 10, 20 which is most often included when purchasing the lamp 30, 40.
  • a housing member 13, 23 i.e. a ceiling rose
  • the light fitting 10, 20 further comprises a second member 12, 22 that is configured to connect directly or indirectly to the lamp 30, 40.
  • the second member 12 is a wire 12 which extends from the ceiling the entire way down to the lamp 30.
  • the second member 22 has the shape of an elongated hook 22.
  • the lamp 40 then connects indirectly to the hook 22 via a chain 41.
  • the second member 12, 22 is different from the power cord PC.
  • the light fitting 10, 20 is also supporting a power cord PC being separate from the second member 12, 22.
  • the light fitting 10 is shown without the housing member 13.
  • the light fitting 10 comprises the first member 11 that serves as the part of the fitting 10 that is attachable to the ceiling.
  • a ceiling hook CH is attached to the ceiling and the first member 11 comprises a loop 114 that attaches to the hook CH.
  • Other means for attaching the first member 11 to the ceiling are also conceivable.
  • the first member 11 further comprises a lock member 111 in the shape of a wire lock 113, having a resilient button 11 la which when depressed allows the second member 12 to move both away from the first member 11, meaning downwards as illustrated in Fig. 3, as well as towards it, meaning upwards as illustrated in Fig. 3, by sliding through the lock member 111 and into the first member 11.
  • the second member 12 When the lock member 111 is in a non-depressed state, the second member 12 is still moveable but only in a direction towards the first member 11, i.e. upwards as illustrated in Fig. 3. This results in a solution where the person hanging a lamp using the light fitting 10 described herein can simply extend the second member 12 fully when hanging the lamp to the ceiling and then simply raise the lamp to a desired height while feeding the second member 12 into the first member 11. The first member 11 will then support the lamp at this new and desired height.
  • Fig. 4 an embodiment of the light fitting 10 is shown where also the electrical wirings are shown and it is shown how a connection box 115 may attach to the first member 11.
  • the electrical wiring of the light fitting 10 is not a central part of the inventive concept and may be achieved in a number of ways. For instance, electrical connectors may be integrated into the first member 11 or be provided as a separate part, which is then attached to the first member 11 or hanged separately from the ceiling.
  • the first member 11 shown in Figs. 3 and 4 further has a cylindrical body 116 being provided with an external thread 112, the purpose of which becomes apparent when turning to Fig. 5.
  • the first member 11 and a part of the second member 12 are covered by a housing member 13.
  • the housing member 13 sometimes called a ceiling rose, protects the other components of the light fitting 10 as well as provides a more aesthetically pleasing appearance of the lamp as a whole.
  • the housing member 13 is attached to the first member 11 by means of a nut 14, which is configured to engage with the thread 112 of the first member 11 shown in Figs. 3 and 4.
  • the nut 14 comprises a flange 141, clearly shown in Fig. 8.
  • the flange 141 supports the housing member 13 vertically.
  • Both the nut 14 and the housing member 13 comprise axially aligned holes 131 which allow the second member 12 to move in relation to the nut 14 and the housing member 13 and vice versa.
  • the length of a part of the second member 12 protruding out of the first member 11 is adjustable also when the lamp 30 is completely assembled and mounted to the ceiling. In case the lamp 30 is to be lowered then the resilient button 11 la of the lock member 111 has to be depressed.
  • the housing member 13 may comprise a second hole 132 through which the electrical power cord PC may extend.
  • Fig. 7 the procedure for extending the length of a part of the second member 12 protruding out of the first member 11 is shown.
  • the wire lock 113 forming the lock member 111, must be maneuvered, in this case by depressing the resilient button 11 la, meaning pushing upwards as shown in Fig. 7, to unlock the lock member 111, i.e. the wire lock, to make it possible to move the second member 12 out of the first member 11, i.e. downwards as shown in Fig. 7, for a lowered position of the lamp.
  • the light fitting 10 is shown in a cross-sectioned view such that the internal components of the first member 11 are visible.
  • the first member 11 is provided with the lock member 111 in the form of a wire lock 113.
  • the wire lock 113 is spring loaded and self-locking for withdrawing of the second member 12 out of the first member 11.
  • the resilient button 11 la forms part of the wire lock 113 such that when depressed it pushes against the force of the spring and thereby releases the locking engagement of the wire lock 113 on the second member 12.
  • the wire lock 113 is per se a conventional item that is known to the person skilled in the art; it could be constructed in a plurality of ways to achieve the desired functionality.
  • lock member 111 may be arranged such that it is accessible even when the nut 14 and the housing member 13 are attached to the first member 11. This allows the second member 12 to be extended out of the first member 11 also when the nut 14 and the housing member 13 are attached, further simplifying adjustment of the height of the lamp 30.
  • the light fitting 20 of Fig. 9 comprises a first member 21 that is configured to be attached to the ceiling.
  • the following description of embodiments will focus mainly on the features that differs from the embodiments described earlier as many features and functions are common for the embodiments.
  • the light fitting 20 comprises a second member 22 in the form of an elongated hook 22.
  • the second member 22 is attached to the first member 21 such that the length of a part of the hook 22 protruding out of the first member 21 can be adjusted.
  • the first member 21 is provided with threads 212 that are configured to engage with corresponding internal threads of a nut 24.
  • the purpose and function of the nut 24 are the same as described for the previous embodiments and will thus not be described in further detail.
  • the light fitting 20 is provided with a housing member 23.
  • the housing member 23 comprises a first hole 231 into which the nut 24 fits to hold the housing member 23 in place.
  • a second hole 232 may also be provided, through which an electrical cord may be inserted.
  • the second member 22 comprises a pin 222 arranged at a first end 221 of the second member 22.
  • the pin 222 is arranged diametrically through the second member 22 and protrudes outwards on opposing sides of the second member 22, forming an essentially T-shaped first end 221. This is shown in Fig. l2a, and especially also in Fig. l2b showing an enlarged section of the first end 221 of the second member 22.
  • the pin 222 is configured to cooperate with an interior of the first member 21, shown in Fig. 11.
  • the first member 21 is provided with at least one, and preferably two, vertically extending slits 216, which are formed radially outwardly from the central hole 218 in the first member 21.
  • the second member 22 can be moved vertically in the central hole 218.
  • the pin 222 slides in the slits 216, allowing axial motion of the second member 22 limited downwardly by a slit stop 213 which defines the first, maximum, protrusive length of the second member 22.
  • This first protrusive length of the second member 22, being the maximum length that the second member 22 can extend out of the first member 21, would typically be used when mounting the light fitting 20 to the ceiling. So this first protrusive length of the second member 22 would be the“mounting position”.
  • the second member 22 For the pin 222 to be able to enter the slits 216, the second member 22 must be rotated into a first rotational position where the pin 222 is aligned with the slits 216.
  • recesses 214 are provided in order to lock the second member 22 at a second protrusive position that corresponds to an inserted position, i.e. a shorter length of the part of the hook 22 protruding outside the first member 21, recesses 214 are provided.
  • the second protrusive length of the second member 22, being the minimum length that the second member 22 can extend out of the first member 21, would typically be used after the light fitting 20 has been mounted to the ceiling and the lamp is ready for use. So this second protrusive length of the second member 22 would be the normal“in-use position”.
  • the recesses 214 are arranged at the upper portion of the first member 21 and are mirrored essentially in the cross-sectional plane as illustrated in Fig. 11.
  • the second member 22 is rotated into a second position in relation to the first member 21, whereby the pin 222 enters the recesses 214 and the second member 22 is thereby supported vertically by the interaction between the pin 222 and respective shelves 217 arranged at a lower end of the recesses 214.
  • Shelf stops 215 may be provided which prevent the second member 22 from unintentional rotation by which the pin 222 leaves the shelves 217 and falls out of the recesses 214 and down to the slit stop 213.
  • each shelf 217 may be slightly inclined such that the pin 222 slides into the vertically lowest position in the recess 214. This will also aid in securing the second member 22 in the second rotational position.
  • the first and second rotational positions are separated or offset by approximately 90°.
  • Figs. l4a-b the process of reducing the length of the part of the second member 22 protruding out of the first member 21 is shown. It is beneficial if the second member 22 is kept at maximum extended length while mounting the light fitting 20 to the ceiling, because this will facilitate access to the components that otherwise are to be hidden by the housing member 23.
  • Fig. l4a-b the process of reducing the length of the part of the second member 22 protruding out of the first member 21 is shown. It is beneficial if the second member 22 is kept at maximum extended length while mounting the light fitting 20 to the ceiling, because this will facilitate access to the components that otherwise are to be hidden by the housing member 23.
  • the second member 22 is shown when protruding a maximum distance dl out of the first member 21 (the first member being hidden by housing member 23). Afterwards, when the first member 21 is attached to the ceiling and the electrical wiring is done, the housing member 23 may be attached at its preferred height using the nut 24. Then, as indicated in Fig. l4b, the second member 22 is simply pushed upwards, towards the first member 21. When the pin 222 arranged in the first end 221 reaches the recesses 214, the second member 22 is free to be rotated into the second rotational position whereby the second member 22 is supported vertically, by the pin 222 resting on the shelves 217 arranged in the recesses 214.
  • the second member 22 is held in place with a reduced length of protrusion out of the first member 21, indicated by distance d2.
  • the chain is used, and a desired height of the lamp is achieved by hanging a suitable link of the chain to the end of the hook 22, as is per se known.
  • Fig. 15 an outline of a method for mounting the light fitting 10, 20 to a ceiling is shown.
  • the method comprises the step 101 of attaching the first member 11, 21 of the light fitting 10, 20 to the ceiling followed by a step 102 of adjusting the length of a part of the second member 12, 22 protruding out of the first member 11, 21.
  • Fig. 16 the outline of a further embodiment of a method for mounting a light fitting to a ceiling is shown.
  • the method shown in Fig. 16 comprises the step 201 of adjusting the length of a part of the second member 12, 22 protruding out of the first member 11, 21 to facilitate access to the first member 11, 21. 1.e. in step 201 the second member 22 is extended to the maximum or preferred length.
  • a subsequent step 202 the first member 11, 21 of the light fitting 10, 20 is attached to the ceiling, after which a step 203 is performed in which the nut 14, 24 is attached to the first member 11, 21.
  • the housing member 13, 23 is attached to the first member 11, 21 and secures the light fitting 10, 20 against the ceiling.
  • a method for mounting the light fitting of the embodiments shown in Figs. 1 and 3-8 a step 301 is performed in which the length of the wire 12 protruding out of the first member 11 is adjusted by unlocking the lock member 111 to allow extension to a length facilitating access to the first member 11.
  • the length of the wire 12 protruding out of the first member 11 could be extended to a maximum length or any given length that is considered sufficient.
  • the first member 11 may then be attached to the ceiling in step 302. Note that these two first steps may just as well be performed in the opposite order, i.e.
  • the wire 12 may just as well be extended when the light fitting 10 is hanging from the ceiling.
  • the nut 14 is attached to the first member 11 in step 303.
  • the housing member 13 is pressed upwards against the ceiling, which secures the light fitting 10.
  • the length of the wire 12 protruding out of the first member 11 can be adjusted to a desired length in step 304. This is done by simply lifting the lamp and feeding the wire 12 towards and into the first member 11.
  • the wire lock 113 of the first member 11 will allow the wire 12 to travel in an upward direction, but as soon as a downward force is applied on the wire 12 it will lock automatically.
  • the lock member 111 may be maneuverable also after that the nut 14 is attached to the first member 11. This would allow extension of the wire 12 even when the housing member 13 is mounted to the ceiling.
  • a method for mounting the light fitting 20 of the embodiments in Figs. 2 and 9-14 is shown. Firstly, in step 401 the length of a part of the hook 22 extending outside the first member 21 is adjusted by rotating the hook 22 to the first rotational position to allow extension to a length facilitating access to the first member 21. In this position the pin 222 of the hook 22 rests on the slit stops 213 illustrated in
  • the extension of the hook 22 allows the housing member 23 to move away from the first member 21, and this simplifies the mounting of the first member 21 to the ceiling as well as any other installation task that might be necessary.
  • the first member 21 is attached to the ceiling by e.g. hanging it from a pre-mounted ceiling hook or using screws or other means for securing it to the ceiling.
  • the nut 24 may be attached to the first member 21 in step 403, which thereby attaches the housing member 23 to the first member 21.
  • the length of the protruding part of the hook 22 may then be adjusted in step 404 by feeding the hook 22 towards the first member 21 and then rotating it into the second rotational position.
  • the pin 222 then latches into the recesses 214 to rest on the shelves 217 and supports the hook 22 that protrudes to a less extent from the first member 21.

Abstract

A light fitting (10, 20) for attaching a pendant lamp (30, 40) to a ceiling, said light fitting (10) comprising a first member (11, 21) attachable to the ceiling and a second member (12, 22) having a first end (121, 221) being connected to the first member (11, 21) and a second end (122, 222) being connected, directly or indirectly, to the pendant lamp (30, 40).

Description

LIGHT FITTING FOR ATTACHING A PENDANT
LAMP TO A CEILING
Technical Field
The present invention relates to the technical field of light fittings and to lamps in general. More specifically, the present invention relates to a light fitting for attaching a lamp to a ceiling, to a lamp comprising such a light fitting and to a method for attaching a light fitting to a ceiling.
Prior Art
Light fittings are well known products used for instance for attaching lamps to ceilings. They usually comprise both electrical connections as well as some sort of means for supporting the weight of the lamp, which in some cases is the electrical cord and in some cases is a separate wire or similar. As light fittings are often visibly mounted to a ceiling, they are preferably designed to be aesthetically pleasing and they may for this reason comprise covers or ceiling roses which cover the interior components of the light fitting.
Light fittings which are configured to attach a lamp to a ceiling may be configured to be attached to the ceiling in a number of ways. Commonly used methods include screws and hooks which are pre-mounted to the ceiling, to name a few. It is a common problem when mounting pendant lamps that it is difficult to achieve a desired hanging height of the lamp, as this often requires the person hanging the lamp having to tediously adjust the length of the cord/wire which attaches the lamp to the light fitting. Access to the internal components of the light fitting such as the electrical connectors and/or the means for hanging the light fitting may also be limited.
In view of the above, it is therefore desired to provide a light fitting which alleviates some of the problems with prior art solutions and a lamp comprising such a light fitting.
Summary
It is therefore an object of the invention to at least partly overcome one or more of the above-identified limitations of the prior art. In particular, it is an object to provide a light fitting for attaching a pendant lamp to a ceiling, a lamp comprising such a light fitting and a method for mounting a light fitting to a ceiling.
In a first aspect, a light fitting for attaching a pendant lamp to a ceiling is provided. The light fitting comprises a first member attachable to the ceiling and a second member. A first end of said second member is connected to the first member and a second end is connected directly or indirectly to the lamp, such that the second end protrudes outside, or out of, the first member in a direction towards the pendant lamp. The length of the part of the second member protruding outside the first member is adjustable. In some embodiments the hanging height of the lamp is thus conveniently adjustable by altering the second member protrusion length. In other embodiments, adjustment of the length of the part of the second member protruding outside the first member allows for easy access when mounting the lamp.
In one embodiment, the light fitting further comprises a housing member configured to at least partly cover the first member. The housing member comprises a first hole through which the second member extends. The adjustable length of protrusion of the second member facilitates mounting of the housing member as well as simplifies access to the parts of the light fitting that are configured to be covered by the housing member.
The first hole of the housing member may be configured to be essentially axially aligned with the first member.
The first member may comprise a thread and the light fitting further comprises a nut through which the second member extends and which is configured to engage with the thread of the first member.
In one embodiment, the nut is axially moveable relative the second member and rotatable in relation to the light fitting. The nut may comprise a flange configured to vertically support the housing member. As the second member is moveable in relation to the nut and the housing member that the nut supports, access during mounting is improved even when the housing member is mounted to the light fitting.
In one embodiment, the second member is a wire.
Furthermore, the first member may be provided with a lock member configured to allow unrestricted movement of the wire in a direction towards the first member and to restrict, or even prevent, movement of the wire in a direction away from the first member. A safe adjustability of the length of wire protrusion is thus provided.
Unwanted extension of the wire is avoided, as the lock member must be actively released, e.g. by depressing a lock release member, for extension of the wire to occur.
In one embodiment, the lock member is arranged concentrically around the wire.
In one embodiment, the second member is an elongated hook. The hook may be configured to, in a first rotational position in relation to the first member, allow for a first extension of the hook out of the first member and in a second rotational position in relation to the first member allow for a second extension of the hook outside, or out of, the first member. The first extension is larger, or longer, than the second extension. The length of hook protrusion is thus determined by the rotational position of the hook in relation to the first member.
In one embodiment, the first rotational position and the second rotational positions are offset by approximately 90° in relation to each other.
In yet another embodiment, the hook at its first end comprises a pin protruding from at least one side of the hook in a direction essentially perpendicular to the extension of the hook. In an embodiment, the pin is arranged diametrically trough the hook. The pin may be configured to be vertically moveable in at least one vertical slit provided in the first member. The slit is limited by a slit stop arranged in a first end of the slit and defining the length of the first extension of the hook. The pin can be rotated in one or more recesses arranged in a second end of the slit to engage with a shelf arranged in the second end of the slit, the shelf defining the length of the second extension of the hook.
Each shelf may comprise a shelf stop that requires the hook to be further inserted into the first member to allow rotation into and out of the first rotational position.
In a second aspect, a lamp is provided for attachment to a ceiling, the lamp comprises a light fitting according to the first aspect.
In a third aspect, a method for mounting the light fitting according to the first aspect to a ceiling is provided. The method comprises the steps of: attaching the first member of the light fitting to the ceiling and adjusting the length of a part of the second member protruding out of the first member. The hanging height of the lamp attached to the light fitting can thereby be altered after it is mounted to the ceiling. Naturally, the protrusion may also be altered when the light fitting is not yet mounted to the ceiling.
In an embodiment of the invention, the method for mounting the lamp comprises the steps of: adjusting the length of a part of the second member protruding out of the first member to facilitate access to the first member, attaching the first member of the light fitting to the ceiling, attaching the nut to the first member and thereby attaching the housing member to the first member and adjusting the length of a part of the second member protruding out of the first member to a desired length.
In yet another embodiment, the method for mounting the light fitting comprises the steps of: adjusting the length of a part of the wire protruding out of the first member by unlocking the lock member to allow for an extension of the wire to a length facilitating access to the first member, attaching the first member of the light fitting to the ceiling, attaching the nut to the first member and thereby attaching the housing member to the first member and adjusting the length of a part of the wire protruding out of the first member to a desired length by feeding the wire towards the first member.
In one embodiment, the method for mounting the light fitting comprises the steps of: adjusting the length of a part of the hook protruding out of the first member by rotating the hook to the first rotational position to allow for an extension of the hook to a length facilitating access to the first member, attaching the first member of the light fitting to the ceiling, attaching the nut to the first member and thereby attaching the housing member to the first member and adjusting the length of a part of the hook protruding out of the first member to a desired length by feeding the hook towards the first member and the rotating it into the second rotational position.
Brief Description of the Drawings
The present invention will be described further below by way of example and with reference to the enclosed drawings. In the drawings:
Fig. 1 shows a pendant lamp according to one embodiment,
Fig. 2 shows a pendant lamp according to one embodiment,
Figs. 3-5 show light fittings according to different embodiments,
Figs. 6 and 7 show adjustment of the protrusion of the second member of a light fitting,
Fig. 8 shows a cross-sectioned view of a light fitting according to one embodiment,
Fig. 9 shows a light fitting according to one embodiment,
Fig. 10 shows a light fitting according to one embodiment,
Fig. 11 shows a first member of a light fitting according to one embodiment, Figs. l2a-b show a hook of a light fitting according to one embodiment, Fig. 13 shows a pin for a hook of a light fitting according to one embodiment,
Figs. l4a-b show adjustment of the protrusion of a hook of a light fitting according to one embodiment,
Figs. 15-18 are schematic illustrations of methods for attaching the light fitting to a ceiling according to different embodiments. Detailed Description of Embodiments
With reference to Figs 1 and 2, two embodiments of pendant lamps 30, 40 are shown. The lamps 30, 40 are typically hanged from a ceiling by means of a first member 11, 21 (Figs. 3 and 9, respectively) of an associated light fitting 10, 20 which is most often included when purchasing the lamp 30, 40. As the connections for attaching the light fitting 10, 20 to the ceiling as well as the electrical connectors are often desired to be hidden from view, a housing member 13, 23 (i.e. a ceiling rose) is often provided which covers these parts of the light fitting 10, 20.
The light fitting 10, 20 further comprises a second member 12, 22 that is configured to connect directly or indirectly to the lamp 30, 40. As is shown in Fig. 1, the second member 12 is a wire 12 which extends from the ceiling the entire way down to the lamp 30. In Fig. 2, the second member 22 has the shape of an elongated hook 22.
The lamp 40 then connects indirectly to the hook 22 via a chain 41. Preferably, the second member 12, 22 is different from the power cord PC. Hence, the light fitting 10, 20 is also supporting a power cord PC being separate from the second member 12, 22.
This is particularly advantageous since the power cord PC does not need to carry the weight of the pendant lamps 30, 40.
Turning to Fig. 3 the light fitting 10 is shown without the housing member 13. The light fitting 10 comprises the first member 11 that serves as the part of the fitting 10 that is attachable to the ceiling. In this case, a ceiling hook CH is attached to the ceiling and the first member 11 comprises a loop 114 that attaches to the hook CH. Other means for attaching the first member 11 to the ceiling are also conceivable.
A first end 121 of the second member 12, i.e. the wire 12, attaches to the first member 11 while a second end 122 of the second member 12, as mentioned earlier, attaches directly or indirectly to the lamp. The first member 11 further comprises a lock member 111 in the shape of a wire lock 113, having a resilient button 11 la which when depressed allows the second member 12 to move both away from the first member 11, meaning downwards as illustrated in Fig. 3, as well as towards it, meaning upwards as illustrated in Fig. 3, by sliding through the lock member 111 and into the first member 11.
When the lock member 111 is in a non-depressed state, the second member 12 is still moveable but only in a direction towards the first member 11, i.e. upwards as illustrated in Fig. 3. This results in a solution where the person hanging a lamp using the light fitting 10 described herein can simply extend the second member 12 fully when hanging the lamp to the ceiling and then simply raise the lamp to a desired height while feeding the second member 12 into the first member 11. The first member 11 will then support the lamp at this new and desired height.
In Fig. 4, an embodiment of the light fitting 10 is shown where also the electrical wirings are shown and it is shown how a connection box 115 may attach to the first member 11. It is to be understood that the electrical wiring of the light fitting 10 is not a central part of the inventive concept and may be achieved in a number of ways. For instance, electrical connectors may be integrated into the first member 11 or be provided as a separate part, which is then attached to the first member 11 or hanged separately from the ceiling.
The first member 11 shown in Figs. 3 and 4 further has a cylindrical body 116 being provided with an external thread 112, the purpose of which becomes apparent when turning to Fig. 5.
The first member 11 and a part of the second member 12 are covered by a housing member 13. The housing member 13, sometimes called a ceiling rose, protects the other components of the light fitting 10 as well as provides a more aesthetically pleasing appearance of the lamp as a whole. The housing member 13 is attached to the first member 11 by means of a nut 14, which is configured to engage with the thread 112 of the first member 11 shown in Figs. 3 and 4. The nut 14 comprises a flange 141, clearly shown in Fig. 8. The flange 141 supports the housing member 13 vertically. Both the nut 14 and the housing member 13 comprise axially aligned holes 131 which allow the second member 12 to move in relation to the nut 14 and the housing member 13 and vice versa. This is important since, as is illustrated in Fig. 6, the length of a part of the second member 12 protruding out of the first member 11 is adjustable also when the lamp 30 is completely assembled and mounted to the ceiling. In case the lamp 30 is to be lowered then the resilient button 11 la of the lock member 111 has to be depressed.
As is also shown in Fig. 6, the housing member 13 may comprise a second hole 132 through which the electrical power cord PC may extend.
In Fig. 7, the procedure for extending the length of a part of the second member 12 protruding out of the first member 11 is shown. As is already mentioned, to allow the second member 12 to protrude further out of the first member 11, the wire lock 113, forming the lock member 111, must be maneuvered, in this case by depressing the resilient button 11 la, meaning pushing upwards as shown in Fig. 7, to unlock the lock member 111, i.e. the wire lock, to make it possible to move the second member 12 out of the first member 11, i.e. downwards as shown in Fig. 7, for a lowered position of the lamp. In Fig. 8, the light fitting 10 is shown in a cross-sectioned view such that the internal components of the first member 11 are visible. To achieve the adjustability of the protruding length of the second member 12, the first member 11 is provided with the lock member 111 in the form of a wire lock 113. The wire lock 113 is spring loaded and self-locking for withdrawing of the second member 12 out of the first member 11. The resilient button 11 la forms part of the wire lock 113 such that when depressed it pushes against the force of the spring and thereby releases the locking engagement of the wire lock 113 on the second member 12. The wire lock 113 is per se a conventional item that is known to the person skilled in the art; it could be constructed in a plurality of ways to achieve the desired functionality. It should also be noted that another known type of lock member 111 may be arranged such that it is accessible even when the nut 14 and the housing member 13 are attached to the first member 11. This allows the second member 12 to be extended out of the first member 11 also when the nut 14 and the housing member 13 are attached, further simplifying adjustment of the height of the lamp 30.
Turning now to Fig. 9 another embodiment of the light fitting 20 is shown. The light fitting 20 of Fig. 9 comprises a first member 21 that is configured to be attached to the ceiling. The following description of embodiments will focus mainly on the features that differs from the embodiments described earlier as many features and functions are common for the embodiments. The light fitting 20 comprises a second member 22 in the form of an elongated hook 22. The second member 22 is attached to the first member 21 such that the length of a part of the hook 22 protruding out of the first member 21 can be adjusted.
The first member 21 is provided with threads 212 that are configured to engage with corresponding internal threads of a nut 24. The purpose and function of the nut 24 are the same as described for the previous embodiments and will thus not be described in further detail.
In Fig. 10, the light fitting 20 is provided with a housing member 23. The housing member 23 comprises a first hole 231 into which the nut 24 fits to hold the housing member 23 in place. A second hole 232 may also be provided, through which an electrical cord may be inserted.
With simultaneous reference to Figs 11 to 14, the mechanism will be described by which the length of a part of the hook 22 protruding out of the first member 21 is adjustable in relation to the first member 21. The second member 22 comprises a pin 222 arranged at a first end 221 of the second member 22. The pin 222 is arranged diametrically through the second member 22 and protrudes outwards on opposing sides of the second member 22, forming an essentially T-shaped first end 221. This is shown in Fig. l2a, and especially also in Fig. l2b showing an enlarged section of the first end 221 of the second member 22. The pin 222 is configured to cooperate with an interior of the first member 21, shown in Fig. 11. The first member 21 is provided with at least one, and preferably two, vertically extending slits 216, which are formed radially outwardly from the central hole 218 in the first member 21. The second member 22 can be moved vertically in the central hole 218. The pin 222 slides in the slits 216, allowing axial motion of the second member 22 limited downwardly by a slit stop 213 which defines the first, maximum, protrusive length of the second member 22. This first protrusive length of the second member 22, being the maximum length that the second member 22 can extend out of the first member 21, would typically be used when mounting the light fitting 20 to the ceiling. So this first protrusive length of the second member 22 would be the“mounting position”.
For the pin 222 to be able to enter the slits 216, the second member 22 must be rotated into a first rotational position where the pin 222 is aligned with the slits 216. In order to lock the second member 22 at a second protrusive position that corresponds to an inserted position, i.e. a shorter length of the part of the hook 22 protruding outside the first member 21, recesses 214 are provided. The second protrusive length of the second member 22, being the minimum length that the second member 22 can extend out of the first member 21, would typically be used after the light fitting 20 has been mounted to the ceiling and the lamp is ready for use. So this second protrusive length of the second member 22 would be the normal“in-use position”. The recesses 214 are arranged at the upper portion of the first member 21 and are mirrored essentially in the cross-sectional plane as illustrated in Fig. 11. The second member 22 is rotated into a second position in relation to the first member 21, whereby the pin 222 enters the recesses 214 and the second member 22 is thereby supported vertically by the interaction between the pin 222 and respective shelves 217 arranged at a lower end of the recesses 214. Shelf stops 215 may be provided which prevent the second member 22 from unintentional rotation by which the pin 222 leaves the shelves 217 and falls out of the recesses 214 and down to the slit stop 213. Alternatively or in combination with the stops 215, the surface of each shelf 217 may be slightly inclined such that the pin 222 slides into the vertically lowest position in the recess 214. This will also aid in securing the second member 22 in the second rotational position. Preferably, the first and second rotational positions are separated or offset by approximately 90°. In Figs. l4a-b, the process of reducing the length of the part of the second member 22 protruding out of the first member 21 is shown. It is beneficial if the second member 22 is kept at maximum extended length while mounting the light fitting 20 to the ceiling, because this will facilitate access to the components that otherwise are to be hidden by the housing member 23. In Fig. l4a, the second member 22 is shown when protruding a maximum distance dl out of the first member 21 (the first member being hidden by housing member 23). Afterwards, when the first member 21 is attached to the ceiling and the electrical wiring is done, the housing member 23 may be attached at its preferred height using the nut 24. Then, as indicated in Fig. l4b, the second member 22 is simply pushed upwards, towards the first member 21. When the pin 222 arranged in the first end 221 reaches the recesses 214, the second member 22 is free to be rotated into the second rotational position whereby the second member 22 is supported vertically, by the pin 222 resting on the shelves 217 arranged in the recesses 214.
Thereby the second member 22 is held in place with a reduced length of protrusion out of the first member 21, indicated by distance d2. For a final height adjustment of the lamp the chain is used, and a desired height of the lamp is achieved by hanging a suitable link of the chain to the end of the hook 22, as is per se known.
In Fig. 15, an outline of a method for mounting the light fitting 10, 20 to a ceiling is shown. The method comprises the step 101 of attaching the first member 11, 21 of the light fitting 10, 20 to the ceiling followed by a step 102 of adjusting the length of a part of the second member 12, 22 protruding out of the first member 11, 21.
Thereby the height of which the lamp is hanging from the light fitting 10, 20 can be adjusted after the light fitting 10, 20 is mounted to ceiling.
Turning to Fig. 16 the outline of a further embodiment of a method for mounting a light fitting to a ceiling is shown. The method shown in Fig. 16 comprises the step 201 of adjusting the length of a part of the second member 12, 22 protruding out of the first member 11, 21 to facilitate access to the first member 11, 21. 1.e. in step 201 the second member 22 is extended to the maximum or preferred length. In a subsequent step 202 the first member 11, 21 of the light fitting 10, 20 is attached to the ceiling, after which a step 203 is performed in which the nut 14, 24 is attached to the first member 11, 21. In this step the housing member 13, 23 is attached to the first member 11, 21 and secures the light fitting 10, 20 against the ceiling. The length of a part of the second member 12, 22 protruding out of the first member 11, 21 may then conveniently be adjusted to a desired length in step 204. In Fig. 17, a method is shown for mounting the light fitting of the embodiments shown in Figs. 1 and 3-8. Firstly, a step 301 is performed in which the length of the wire 12 protruding out of the first member 11 is adjusted by unlocking the lock member 111 to allow extension to a length facilitating access to the first member 11. The length of the wire 12 protruding out of the first member 11 could be extended to a maximum length or any given length that is considered sufficient. The first member 11 may then be attached to the ceiling in step 302. Note that these two first steps may just as well be performed in the opposite order, i.e. the wire 12 may just as well be extended when the light fitting 10 is hanging from the ceiling. In order to attach the housing member 13 to the first member 11, the nut 14 is attached to the first member 11 in step 303. As mentioned above, by tightening the nut 14, the housing member 13 is pressed upwards against the ceiling, which secures the light fitting 10. When the light fitting 10 is secured, the length of the wire 12 protruding out of the first member 11 can be adjusted to a desired length in step 304. This is done by simply lifting the lamp and feeding the wire 12 towards and into the first member 11. The wire lock 113 of the first member 11 will allow the wire 12 to travel in an upward direction, but as soon as a downward force is applied on the wire 12 it will lock automatically. It is also conceivable that the lock member 111 may be maneuverable also after that the nut 14 is attached to the first member 11. This would allow extension of the wire 12 even when the housing member 13 is mounted to the ceiling.
In Fig. 18, a method is shown for mounting the light fitting 20 of the embodiments in Figs. 2 and 9-14. Firstly, in step 401 the length of a part of the hook 22 extending outside the first member 21 is adjusted by rotating the hook 22 to the first rotational position to allow extension to a length facilitating access to the first member 21. In this position the pin 222 of the hook 22 rests on the slit stops 213 illustrated in
Fig. 11. The extension of the hook 22 allows the housing member 23 to move away from the first member 21, and this simplifies the mounting of the first member 21 to the ceiling as well as any other installation task that might be necessary. In step 402 the first member 21 is attached to the ceiling by e.g. hanging it from a pre-mounted ceiling hook or using screws or other means for securing it to the ceiling. When the first member 21 is secured to the ceiling, the nut 24 may be attached to the first member 21 in step 403, which thereby attaches the housing member 23 to the first member 21. The length of the protruding part of the hook 22 may then be adjusted in step 404 by feeding the hook 22 towards the first member 21 and then rotating it into the second rotational position. The pin 222 then latches into the recesses 214 to rest on the shelves 217 and supports the hook 22 that protrudes to a less extent from the first member 21.
It should be mentioned that the inventive concept is by no means limited to the embodiments described herein, and several modifications are feasible without departing from the scope of the appended claims. In the claims, the term“comprises/comprising” does not exclude the presence of other elements or steps. Additionally, although individual features may be included in different claims, these may possibly
advantageously be combined, and the inclusion in different claims does not imply that a combination of features is not feasible and/or advantageous. In addition, singular references do not exclude a plurality. The terms“a”,“an”,“first”,“second” etc do not preclude a plurality. Reference signs in the claims are provided merely as a clarifying example and shall not be construed as limiting the scope of the claims in any way.

Claims

1. A light fitting (10, 20) for attaching a pendant lamp (30, 40) to a ceiling, said light fitting (10, 20) comprising a first member (11, 21) attachable to the ceiling and a second member (12, 22) having a first end (121, 221) being connected to the first member (11, 21) and a second end (122, 222) being connected, directly or indirectly, to the pendant lamp (30, 40), such that the second end (122, 222) protrudes out of the first member (11, 21) in a direction towards the pendant lamp (30, 40), wherein the length of a part of the second member (12, 22) protruding out of the first member (11, 21) is adjustable.
2. Light fitting (10, 20) according to claim 1, further comprising a housing member (13, 23) configured to at least partly cover the first member (11, 21), said housing member (13, 23) comprising a first hole (131, 231) through which the second member (12, 22) extends.
3. Light fitting (10, 20) according to claim 2, wherein the first hole (131, 231) of the housing member (13, 23) is configured to be essentially axially aligned with the first member (11, 21).
4. Light fitting (10, 20) according to claim 2 or 3, wherein the first member (11, 21) comprises a thread (112, 212) and wherein the light fitting (10, 20) further comprises a nut (14, 24) through which the second member (12, 22) extends and which is configured to engage with the thread (112, 212) of the first member (11, 21).
5. Light fitting (10, 20) according to claim 4, wherein the nut (14, 24) is axially moveable relative the second member (12, 22), said nut (14, 24) being rotatable in relation to the light fitting (10, 20) and comprising a flange (141, 241) configured to vertically support the housing member (13, 23).
6. Light fitting (10) according to any of the preceding claims, wherein the second member (12) is a wire (12).
7. Light fitting (10) according to claim 6, wherein the first member (11) is provided with a lock member (111) configured to allow unrestricted movement of the wire (12) in a direction towards the first member (11), and to restrict movement of the wire (12) in a direction away from the first member (11).
8. Light fitting according to claim 7, wherein the lock member (111) is arranged concentrically around the wire (12).
9. Light fitting (20) according to any of claims 1 to 5, wherein the second member (22) is an elongated hook (22).
10. Light fitting (20) according to claim 9, wherein the hook (22) is configured to, in a first rotational position in relation to the first member (21), allow for a first extension of the hook (22) out of the first member (21), and, in a second rotational position in relation to the first member (21) allow for a second extension of the hook (22) out of the first member (21), wherein the first extension is longer than the second extension.
11. Light fitting (20) according to claim 10, wherein the first rotational position and the second rotational position are offset by approximately 90° in relation to each other.
12. Light fitting (20) according to any of claims 10 to 11, wherein the hook (22) at its first end (221) comprises a pin (222) protruding from at least one side of the hook (22) in a direction essentially perpendicular to the extension of the hook (22), said pin (222) being configured to be vertically moveable in at least one vertical slit (216) provided in the first member (21), said slit (216) being limited by a slit stop (213) arranged in a first end of the slit (216) and defining the length of the first extension of the hook (22), wherein said pin (222) can be rotated in at least one recess (214) arranged in a second end of the slit (216) to engage with a shelf (217) arranged in the second end of the slit (216), said shelf (217) defining the length of the second extension of the hook (22).
13. Light fitting (20) according to claim 12, wherein the at least one shelf (217) comprises a shelf stop (215) which requires the hook (22) to be further inserted into the first member (21) to allow rotation into and out of the second rotational position.
14. A lamp (30, 40) for attachment to a ceiling, said lamp (30, 40) comprising a light fitting (10, 20) according to any of claims 1 to 13.
15. Method for mounting the light fitting (10, 20) of any one of claims 1 to 13 to a ceiling, said method comprising the steps of:
- attaching (101) the first member (11, 21) of the light fitting (10, 20) to the ceiling, and
- adjusting (102) the length of a part of the second member (12, 22) protruding out of the first member (11, 21).
16. Method for mounting the light fitting (10, 20) of claim 4 or any previous claim depending from claim 4, to a ceiling, said method comprising the steps of:
- adjusting (201) the length of a part of the second member (12, 22) protruding out of the first member (11, 21) to facilitate access to the first member (11, 21),
- attaching (202) the first member (11, 21) of the light fitting (10, 20) to the ceiling,
- attaching (203) the nut (14, 24) to the first member (11, 21) and thereby attaching the housing member (13, 23) to the first member (11, 21),
- adjusting (204) the length of a part of the second member (12, 22) protruding out of the first member (11, 21) to a desired length.
17. Method for mounting the light fitting (10) of claims 4 and 7 or any previous claim depending from claim 4 and claim 7, to a ceiling, said method comprising the steps of:
- adjusting (301) the length of a part of the wire (12) protruding out of the first member (11) by unlocking the lock member (111) to allow for an extension of the wire (12) to a length facilitating access to the first member (11),
- attaching (302) the first member (11) of the light fitting (10) to the ceiling,
- attaching (303) the nut (14) to the first member (11) and thereby attaching the housing member (13) to the first member (11), and
- adjusting (304) the length of a part of the wire (12) protruding out of the first member (11) to a desired length by feeding the wire (12) towards the first member (11).
18. Method for mounting the light fitting (20) of claims 4 and 10 or any claim depending from claim 4 and 10, to a ceiling, said method comprising the steps of: - adjusting (301) the length of a part of the hook (22) protruding out of the first member (21) by rotating the hook (22) to the first rotational position to allow for an extension of the hook (22) to a length facilitating access to the first member (21),
- attaching (302) the first member (21) of the light fitting (20) to the ceiling, - attaching (303) the nut (24) to the first member (21) and thereby attaching the housing member (23) to the first member (21),
- adjusting (304) the length of a part of the hook (22) protruding out of the first member (21) to a desired length by feeding the hook (22) towards the first member (21) and then rotating it into the second rotational position.
EP19811182.5A 2018-06-01 2019-05-29 Light fitting for attaching a pendant lamp to a ceiling Pending EP3803202A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1850666A SE543904C2 (en) 2018-06-01 2018-06-01 Light fitting
PCT/SE2019/050504 WO2019231388A1 (en) 2018-06-01 2019-05-29 Light fitting for attaching a pendant lamp to a ceiling

Publications (2)

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EP3803202A1 true EP3803202A1 (en) 2021-04-14
EP3803202A4 EP3803202A4 (en) 2022-03-02

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EP19811182.5A Pending EP3803202A4 (en) 2018-06-01 2019-05-29 Light fitting for attaching a pendant lamp to a ceiling

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EP (1) EP3803202A4 (en)
CN (1) CN112204304A (en)
SE (1) SE543904C2 (en)
WO (1) WO2019231388A1 (en)

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Publication number Priority date Publication date Assignee Title
WO2023039801A1 (en) * 2021-09-16 2023-03-23 瑞仪光电(苏州)有限公司 Fixing mechanism and lamp
CN116137886A (en) 2021-09-17 2023-05-19 瑞仪(广州)光电子器件有限公司 Reflection sheet, backlight module and display device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2513980A1 (en) * 1975-03-29 1976-10-07 Josef Bachmann Kg Light fitting of hanging type - has flexible support element the length of which is adjustable
DE3101721A1 (en) * 1981-01-21 1982-08-26 Kingeter, Ulrich, 7326 Heiningen Device for suspending ceiling lamps in conjunction with reserve ceiling boxes embedded in concrete in the ceiling
GB2132172A (en) * 1982-11-04 1984-07-04 Tajima Industry Co Ltd Hanging device cable reel
TW592281U (en) * 2002-03-27 2004-06-11 Chi-Huei You Lamp allowing for easy adjustment of length
US6679620B2 (en) * 2002-04-12 2004-01-20 Hunter Fan Company Light fixture
JP6162475B2 (en) * 2013-05-10 2017-07-12 コイズミ照明株式会社 Cord length adjusting mechanism and lighting apparatus including the same

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SE543904C2 (en) 2021-09-21
SE1850666A1 (en) 2019-12-02
CN112204304A (en) 2021-01-08
WO2019231388A1 (en) 2019-12-05
EP3803202A4 (en) 2022-03-02

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