WO2016166621A1 - Adjustable lighting device - Google Patents

Adjustable lighting device Download PDF

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Publication number
WO2016166621A1
WO2016166621A1 PCT/IB2016/051564 IB2016051564W WO2016166621A1 WO 2016166621 A1 WO2016166621 A1 WO 2016166621A1 IB 2016051564 W IB2016051564 W IB 2016051564W WO 2016166621 A1 WO2016166621 A1 WO 2016166621A1
Authority
WO
WIPO (PCT)
Prior art keywords
led devices
linear
shaped
support frame
lighting
Prior art date
Application number
PCT/IB2016/051564
Other languages
French (fr)
Inventor
Diego DE FECONDO
Original Assignee
De Fecondo S.R.L.
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 De Fecondo S.R.L. filed Critical De Fecondo S.R.L.
Publication of WO2016166621A1 publication Critical patent/WO2016166621A1/en

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Classifications

    • 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
    • F21V21/30—Pivoted housings or frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • 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
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/90—Light sources with three-dimensionally disposed light-generating elements on two opposite sides of supports or substrates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to an adjustable lighting device (or chandelier) orientable and having a variable aesthetic configuration, i.e. which can be modified at will and according to requirements of the same end user.
  • a conventional lighting device such as a chandelier
  • a lighting device is a particular type of lamp that also serves as a decorative element of the ceiling and, more generally, of the environment or the room in which it is installed.
  • the chandelier is, therefore, an apparatus useful for artificial lighting of interiors which for this reason is placed on the ceiling, where it remains suspended, or applied to a side wall at a convenient height from the floor in such a way as to illuminate from above, therefore in the most complete manner, the surrounding environment, ensuring a considerably more stable positioning with respect to a generic lamp which generally is simply supported by a reference surface.
  • each of these lighting devices comprises a support frame provided with fixing means for its stable coupling with a reference surface of an environment, with respect to which is arranged facing, of a building (such as a housing unit) and lighting means suitable to be operated in order to illuminate the environment which are arranged facing with respect to.
  • a building such as a housing unit
  • lighting means suitable to be operated in order to illuminate the environment which are arranged facing with respect to.
  • These lighting means are coupled with the support frame and electrically connected with an electric energy source, such as the electric system, made available at the environment.
  • the user can change the direction of light emitted by the lighting means of lighting devices only indirectly, by solely operating on the components or on the structure supporting the lighting means and not also or only by varying the position of the latter.
  • main purpose of the present invention is to provide an adjustable lighting device which allows to irradiate the light in an environment of a certain size, such as a room of a building, effectively illuminating it, according to a number of angles higher than thta one allowed by analogues lighting devices of the prior art.
  • task of the invention to provide an adjustable lighting device which allows the end user to customize the geometric configuration of the article, according to a plurality of different positions, and to satisfy at least in part to the mutability of hos own aesthetic tastes as widely known, can change at a time also limited after purchase.
  • the adjustable lighting device of the invention effectively illuminates an environment of a certain size, such as a room of a building, by arranging the lighting means according to various angles which by number are clearly higher than those ones obtainable with known lighting devices suitable to produce the same effects.
  • the adjustable lighting device of the invention is able to allow the end user to vary at will - depending on the own needs or more simply on his tastes - the orientation of the light emitted by the lighting means without adversely affect the effective and complete lighting of the environment in which the lighting device is installed.
  • the lighting device of the present invention includes adjusting means of the direction of light emitted by the lighting means, operatively connected with the support frame and/or the lighting means in such a manner as to allow light direction change through the variation of the spatial geometry of the support frame according to a plurality of positions different each other and/or through the variation of the spatial orientation of the lighting means with respect to the support frame according to a plurality of positions different each other.
  • the adjustable lighting device of the invention allows to change the direction of the light intended to illuminate an environment of a certain size and to simultaneously also obtain a substantial change, appreciated by anyone who also observes it from from a distance, of its overall shape and its ornamental capacity: the lighting device of the invention may, indeed, take several configurations distinct and different each other which change appreciably, renewing it, its aesthetic effect.
  • the configuration of the adjustable lighting device of the invention is customizable at will, at any time, by the end user, with simple and quick manual operations performed without the intervention of skilled persons and without the aid of adjustment tools and that, if they take place with due caution, do not affect in any way the structural integrity and functional capacity of its components.
  • the lighting device of the invention thanks to its variable geometrical configuration, customizable and adaptable to the changing (over time) aesthetic needs of the end user, appears to be more pleasant to customer compared to equivalent lighting devices of type known, since the end-user with a same article may at least partly meet its own needs of ornamental effect change associated with a lighting device installed at a given height from the pavement, and in particular to the ceiling.
  • Said purposes and advantages, as well as other ones which will emerge later, will appear more evident from the following description, relating to a preferred embodiment of the adjustable lighting device of the invention, given by way of indicative and illustrative, but not limiting, example with reference to the accompanying drawings, in which:
  • FIG. 1 is a front view of the adjustable lighting device of the present invention, in applicative conditions and in a first possible spatial configuration
  • figure 2 is a side view of figure 1;
  • figure 3 is an assonometric view of a first constructive assembly of figure 1;
  • figure 4 is the enlarged and truncated assonometric view of a second constructive assembly of figure 1;
  • figure 5 is the enlarged, simplified and truncated assonometric view of a third constructive assembly of figure 1;
  • figure 6 is a simplified and partial assonometric view of the first assembly of figure 3;
  • figure 7 is a front view of a detail of figure 6;
  • FIG. 8-10 are three distinct partially exploded assonometric views of a detail of the first constructive assembly of figure 3;
  • FIG 11 is a front view of a first detail of figures 8-10;
  • FIG. 12 is a front view of a second detail of figures 8-10;
  • figure 13 is a partial assonometric view of a first detail of figure 4;
  • figure 14 is an assonometric view of a second detail of figure 4.
  • figure 15 is the front view of figure 14;
  • FIG. 16-18 are three schematic and illustrative front views of as many different operating and applicative configurations of the lighting device of figure 1.
  • the adjustable lighting device of the invention is illustrated in figures 1-2 where it is globally numbered with 1.
  • an adjustable lighting device 1 comprises:
  • a support frame as a whole numbered with 2, provided with fixing means, indicated as a whole with 3 and useful to its stable coupling with a reference surface S, such as typically, although not exclusively, the ceiling of an environment (the room of a building) with respect to which is positioned facing;
  • lighting means generically numbered with 4, suitable to be oeprated in order to illuminate the environment with respect to which they are positioned facing, coupled with the support frame 2 and electrically connected with an electric energy source, such as the electric system, made available at said environment.
  • the adjustable lighting device 1 includes adjusting means of the direction of the light, overall indicated with 5, emitted by the lighting means 4, operatively connected with the support frame 2 and/or the lighting means 4 so as to allow light direction change through the variation of the spatial geometry (or configuration) of the support frame 2 according to a plurality of positions different each other and/or through the variation of the spatial orientation of the lighting means 4 with respect to the support frame 2 according to a plurality of positions different each other.
  • the adjusting means of the direction of the light 5 comprise first rotation means, overall indicated with 6 and associated with the support frame 2, and/or second rotation means, generally indicated with 7 and associated with the lighting means 4.
  • Figure 2 shows that, in preferred but not binding way, the support frame 2 comprises a first shaped finishing fin 8 and, in the case under description, only a second shaped finishing fin 9 having a profile equal to that one of the first shaped fin 8 from which it is physically separated by a given horizontal longitudinal distance D and with which it is mechanically connected through the lighting means 4.
  • each of the shaped finishing fins 8, 9 defines an inner chamber, not visible in the figures attached, in which first electrical connection components, visible in part in figure 4 and in a more complete way in figure 5 where they are as a whole numbered with 10, are housed - and then hidden from view and suitably isolated -: these first electrical connection components 10 are connected, on one side, with the lighting means 4 and, on the other side, with second electrical connection components, clearly visible in figures 1-3 where tehya re overall numbered with 11, suitable to be electrically connected with the electric energy source mentioned above.
  • the support frame could include, depending on the application requirements, any number of second shaped finishing fins consecutively aligned among each other along a horizontal direction, fixed to the ceiling and each having a profile equal to that one of the first shaped fin.
  • the second shaped finishing fins will be physically separated each other in a specific horizontal longitudinal distance, equal or not to the longitudinal distance separating the first shaped finishing fin from the second shaped finishing fin directly adjacent to it and that typically does not exceed six linear metres, and they will be mechanically connected each other by lighting means of the type indicated with 4 in figure 2.
  • the lighting device of the invention will thus be modular in a horizontal longitudinal development and its installation could advantageously be adapted to environments of various size even partly communication with the outside, such as road tunnels.
  • figure 5 shows that they, preferably, include in this case, three laminar bodies 12 equal each other, spaced apart and arranged along planes parallel each other: this in function of the specific illuminating choices matched to the preferred embodiment of the lighting device 1 described herein, which will become more apparent in the following description.
  • Each of these laminar bodies 12 is made of electrically conductive material, for example brass, presents substantially the same profile of the shaped finishing fins 8, 9 (as clearly visible in figures 6 and 7) and is provided with a connection plate 13, partially projecting from the opposite ends 8a, 9a of each of the shaped finishing fins 8, 9 themselves and electrically connected with the second electrical connection components 11.
  • connection plate 13 is monolithic to the respective laminar body 12 and defines a transverse through hole 14 suitable to receive union means, not illustrated, for the electrical continuity between the first electrical connection components 10 and the second electrical connection components 11.
  • figures 1-3 demonstrate that they preferably comprise:
  • an interconnection joint 17 which a second end 15b, 16b of each of the traction wires 15, 16, positioned at a given distance from the reference surface S and connected by means of an auxiliary wire 17 with the fixing means 3, is made integral to.
  • the interconnection joint 17 is equally spaced apart from the opposite ends 8a, 9a of each of the shaped finishing fins 8, 9 and the traction wires 15, 16 have equal length so that the opposite ends 8a, 9a of each of these shaped finishing fins 8, 9 and the interconnection joint 17 are continuously arranged according to the vertices of a hypothetical isosceles or equilateral triangle and confer regularity and linearity to the overall aesthetic effect of the lighting device 1.
  • each of the shaped finishing fins 8, 9 is composed of two finned semi-portions 19, 20 having inner ends 19a, 20a mutually complementary by profile and connected each other through the first rotation means 6 previously introduced, which allow a first adjustment of the light emitted by the lighting means 4 as a result of (or thanks to) the varation in the spatial geometry of the support frame 2.
  • the first rotation means 6 are arranged at the inner ends 19a, 20a of the finned semi-portions 19, 20 and, in the specific case, comprise:
  • the first semi-finned portion 19 includes six shaped lamellae 22 made of high mechanical strength plastic material, such as polymethylmethacrylate (PMMA abridged or plexiglas®), arranged one facing and close the other and kept mutually compacted at the opposite ends through the second rotation means 7 yet introduced, as it will be better explained below.
  • PMMA abridged or plexiglas® polymethylmethacrylate
  • the second semi-finned portion 20 includes six counter-shaped lamellae 23 which are also made of the same plastic material of the shaped lamellae 22, arranged one facing and close the other and kept mutually compacted at the opposite ends still through the second rotation means 7.
  • each of the counter-shaped lamellae 23 is complementary to the shape (convex or concave) of each of the corresponding shaped lamellae 22 to which is side-by-side in such a way as to be coplanar to it and to ensure the angular sliding of one with the other around the linear rotation axis Yi.
  • This constructive solution of the shaped finishing fins 8, 9 is particularly suitable to create a further element of customization of the ornamental motif associated with the lighting device 1 of the invention, since the various shaped lamellae 22 and the various counter-shaped lamellae 23 can be made with mutually different colours, suitably matched each other and to the intrinsic transparency which connotes the material, although coloured, with which are preferably made these lamellae 22, 23: this determines particularly attractive, refined and innovative light combinations which confer an aesthetic effect not obtainable with similar known lighting devices.
  • each of the three laminar bodies 12 of the first electrical connection components 10 is included (or better, kept pressed) between a pair of shaped lamellae 22 and between the pair of counter-shaped shaped lamellae 23 which, according to a linear direction X orthogonal to the linear rotation axis Yi, is directly flanked and complementary to the respective pair of shaped lamellae 22 with which cooperates with a rotary sliding movement.
  • each of the aforesaid laminar bodies 12 is housed in a shaped recess 24 made in one of the side faces 22a, 23a of the shaped lamellae 22 and the counter-shaped lamellae 23 provided with convex surface at the zone (inner ends 19a, 20a of the finned semi-portions 19, 20) in which the first rotation means 6 are defined: in this way, each laminar body 12 is totally contained into the respective shaped lamella 22 or into the respective counter-shaped lamella 23, ensuring the perfect coplanarity of the relative lateral face 22a, 23a to which it is applied.
  • each laminar body 12 is divided into two laminar semi-bodies 121 and 122, the first being interposed between a pair of shaped lamellae 22 and the second being interposed between the pair of counter-shaped lamellae 23 that, according to a linear direction X orthogonal to the linear rotation axis Yi, is directly flanked and complementary to the respective pair of shaped lamellae 22 with which cooperates with rotary sliding movement.
  • the two laminar semi-bodies 121 and 122 of each laminar body 12 interfere, in such a way that the respective ends 121a, 122a are arranged one facing and close the other, as it can be well derived from figure 6.
  • references to the lighting means 4 comprise, as it is clear from the combination of figures 1, 2 and 4-6:
  • each of the LED devices assemblies 25, 26, 27 comprises, in preferred although not exclusive title:
  • tubular body 28 visible dashed in figures 4 and 5 since made at least partly of transparent material: it develops for the aforesaid horizontal longitudinal distance D;
  • the bar-shaped element 29 presents a first linear seat 31 housing a LED devices strip and a second linear seat 32, distinct and diametrically opposite to the first linear seat 31, and housing a LED devices strip.
  • adjustable lighting device of the invention could provide that in each of the linear seat of the basr-shaped element a plurality of LED devices strips connected together in series are housed.
  • the bar-shaped element of each of the LED devices assemblies could present only one or more linear seats housing one or more LED devices strips only on a defined portion of their length.
  • the LED devices used in the invention have operating voltage typically selected aming the values of 24, 48 or 96 Volts in direct current; moreover the LED devices are suitably arranged very close, almost in contact, each other in such a way as to ensure a uniform and distributed diffusion of the light that avoids to produce dazzle effects, thus compensating to an intrinsic limitation of the LED devices consisting in the point-like character of the light they emitt.
  • the LED devices may be advantageously of the RGB type (acronym, as known, of Red- Green-Blue), in such a way that the tubular body 28 of the LED devices assemblies 25, 26, is illuminated even during natural and/or artificial dark conditions, while the LEDs are off.
  • Figure 13 highlights that, suitably but not necessarily, the bar-shaped element 29, made for example of metallic material such as aluminum, presents in cross section a prismatic profile, composed of a central portion 33 which the LED devices strips are associated with on opposite sides and by two pairs of lateral projections 34, 35 distinct and separated each other in siuch a way as to form the respective linear seats 31, 32 and designed to dissipate the heat emitted by the LED devices strips.
  • the bar-shaped element 29 made for example of metallic material such as aluminum, presents in cross section a prismatic profile, composed of a central portion 33 which the LED devices strips are associated with on opposite sides and by two pairs of lateral projections 34, 35 distinct and separated each other in siuch a way as to form the respective linear seats 31, 32 and designed to dissipate the heat emitted by the LED devices strips.
  • the two lateral projections 34 are arranged symmetrically each other with respect to the first longitudinal direction Y and separated by the linear seat 31, as well as the two lateral projections 35 that are separated by the linear seat 32.
  • the bar-shaped element has only one linear seat, it will be composed, as well as by the central portion, only by a pair of lateral projections.
  • the quick-coupling means 30 preferably comprise four longitudinal teeth, not visible in the accompanying figures, each of which protruding from the inner wall of the tubular body 28 and snap-engaged or pressure- engaged into a longitudinal groove 36 made in the four lateral projections 34, 35 of the bar- shaped element 29. It is understood that in other embodiments of the invention, not shown, the quick-coupling means could include a number of longitudinal teeth lower than four, for example one or two, which are snap-engaged, by mechanical interference or pressure-engaged into relative longitudinal grooves, especially if the bar-shaped element is comopsoed by a single pair of lateral projections which delimit a single linear seat.
  • each of the LED devices assemblies 25, 26, 27 is coupled with the support frame 2 through the second rotation means 7 which allow a second adjustment of the light emitted by the lighting means 4 through the variaiotn of the spatial orientation of the lighting means 4 themselves with respect to the support frame 2.
  • figures 5, 6, 8-10, 14 and 15 show that the second rotation means 7 comprise in the specific case:
  • a positioning insert 37 made integral through junction means, indicated as a whole with 38, to each of the ends of the tubular body 28 of each of the LED devices assemblies 25, 26, 27 and supporting each of the shaped finishing fins 8, 9;
  • the guide and electrical continuity means 39 make the positioning insert 37 freely rotatable around each of the respective horizontal linear Y, Y', Y".
  • junction means 38 comprise:
  • a front flange 44 suitable to remain at sight, opposite and coaxial to the strike head 42 which is separated from by a reentrant stem 45 belonging to the positioning insert 37 and contained into each of the shaped finishing fins 8, 9;
  • a fixing screw 59 which is inserted into a first through opening 46 made in the thickness of the front flange 44 and engages in a second through opening 47, made in the reentrant stem 45 and in the strike head 42 of the positioning insert 37 coaxially to the first through opening 46, and in a third through opening 60 made in the bar-shaped element 29 coaxially to the first through opening 46 and to the second through opening 47.
  • the reentrant stem 45 presents a first linear auxiliary seat 48, suitable to house one or more additional LED devices strips, not shown for simplicity, and a second linear auxiliary seat 49, distinct and diametrically opposite to the first auxiliary linear seat 48 and suitable to house one or more additional LED devices strips.
  • the additional LED devices strips are applied to the auxiliary linear seats 48, 49 of the reentrant stem 45 of the positioning insert 37 in case the shaped finishing fins 8, 9 are made of transparent plastic material, in particular of neutral colour.
  • the guide and electrical continuity means 39 comprise:
  • peripheral rings 50, 51 opposite each other which belong to the laminar body 12 of the first electrical connection components 10, are placed at the respective connection plate 13 present at the opposite ends 8a, 9a of each of the shaped finishing fins 8, 9 and define a pair of peripheral through holes 52, 53 which the reentrant stem 45 of the positioning insert 37 of the peripheral LED devices assemblies 26, 27 is inserted into;
  • a central ring 54 which belongs to the laminar body 12 of the first electrical connection components 10, is connected with each of the peripheral rings 50, 51 through an electrical bridge lamina 55, is arranged at the central zone 8c, 9c of each of the shaped finishing fins 8, 9 and defines a central through hole 56 which is inserted the reentrant stem 45 of the positioning insert 37 of the central LED device assembly 25 into;
  • the ball bearing 57 represents the electrical contact connection point carried by the laminar body 12 and transferred to the LED devices assemblies 25, 26, 27 by means of laminar plates 58, clearly visible in figure 5, associated with the reentrant stem 45 of the positioning insert 37 integral with each of the ends of the tubular body 28 of each of the LED devices assemblies 25, 26, 27.
  • the adjustable lighting device 1 of the invention thanks to its particular adjusting means of the direction of the light 5 emitted by the lighting means 4, allows to get a multiplicity of luminous effects different each other with which it is possible to illuminate at will, but still effectively, the environment in which the lighting device 1 itself is installed.
  • the variation of the light emitted by the lighting means 4 occurs by varying the position of the lighting means 4 themselves with respect to the support frame 2 and/or the spatial position of the support frame 2 itself: in the latter case, with a variation of the direction of the light a clear, meaningful and easily appreciable variation of the overall aesthetic effect of the adjustable lighting device 1 is advantageously associated, obtained with simple and quick, even if careful, manoeuvres performed even by an user not versed in the assembly of these electrical components and without affecting the structural and functional integrity thereof.
  • variable number of laminar bodies belonging to the first electrical connection components and contained into the inner chamber of the shaped finishing fins affect the variability of luminous effects obtainable with the adjustable lighting device 1 of the invention, this number varying from one up to any number as long as compatible with the designed and configurable dimensions of the shaped finishing fins themselves.
  • the number of laminar bodies 12 forming the electrical bridge among the various LED devices assemblies 25, 26, 27 is set at three but such a number could vary starting from one to five in optional and alternative embodiments, depending on the design choices, lighting effects that is desired to achieve and lighting needs to meet.
  • the adjustable lighting device of the present invention achieves the purposes and reaches the advantages previously mentioned.
  • the adjustable lighting device of the present invention consisting, for example, in adjusting means of the direction of the light emitted by the lighting means different from those ones previously described.
  • the first rotation means and the second rotation means with which are obtained, preferably, the adjustment effects described above and constituting part of the purposes of the invention could be differnent in alternative embodiments, not shown, of the adjustable lighting device which is claimed herewith as exclusive right.
  • the support frame could comprise two shaped finishing fins each composed of two finned semi-portions, having inner ends connected each other through first rotation means and a respective box-like structure which defines an inner chamber in the which the first electrical connection components are housed (then still hidden at sight, protected and not directly accessible in full compliance with the safety conditions).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

An adjustable lighting device (1) comprising a support frame (2) provided with fixing means (3) for its stable coupling with a reference surface (S) of an environment which is positioned facing with respect to, and lighting means (4) suitable to be operated in order to illuminate the environment which are positioned facing with respect to, coupled with the support frame (2) and electrically connected with an electric energy source made available at said environment. In particular, the adjustable lighting device (1) comprises adjusting means of the direction of the light (5) emitted by the lighting means (4), operatively connected with the support frame (2) and/or the lighting means (4) in such a way as to allow light direction change through the variation of the spatial geometry of the support frame (2) according to a plurality of positions different each other and/or through the variation of the spatial orientation of the lighting means (4) with respect to the support frame (2) according to a plurality of positions different each other.

Description

ADJUSTABLE LIGHTING DEVICE
DESCRIPTION
The present invention relates to an adjustable lighting device (or chandelier) orientable and having a variable aesthetic configuration, i.e. which can be modified at will and according to requirements of the same end user.
As known, a conventional lighting device, such as a chandelier, is a particular type of lamp that also serves as a decorative element of the ceiling and, more generally, of the environment or the room in which it is installed.
The chandelier is, therefore, an apparatus useful for artificial lighting of interiors which for this reason is placed on the ceiling, where it remains suspended, or applied to a side wall at a convenient height from the floor in such a way as to illuminate from above, therefore in the most complete manner, the surrounding environment, ensuring a considerably more stable positioning with respect to a generic lamp which generally is simply supported by a reference surface.
At present various types of lighting devices of the type suitable to be applied to the ceiling of a room or to a given height from the floor of the room itself are evidently available on the market, which differ from each other for constructive conception, aesthetic features, materials used for their construction, type and intensity of the emanated light and so on, parameters that make them suitable for an intended use (i.e., the applicative environment) rather than another.
Among the various types of known lighting devices cited above that one to which is oriented in particular the present invention falls which provides the possibility for the same end user to vary by himself, depending on the own needs and personal tastes but still within a few inevitable limitations, the orientation of the light emitted by the lighting means quickly and quite easily even while the product concerned remains installed, i.e. without the need to remove it temporarily from its final location.
In general, in the essential traits, each of these lighting devices comprises a support frame provided with fixing means for its stable coupling with a reference surface of an environment, with respect to which is arranged facing, of a building (such as a housing unit) and lighting means suitable to be operated in order to illuminate the environment which are arranged facing with respect to. These lighting means are coupled with the support frame and electrically connected with an electric energy source, such as the electric system, made available at the environment.
In the lighting device of the prior art of such constructive composition, the possibilites to vary the direction of light emitted by the lighting means are notoriusly rather limited, neglecting to consider those lighting devices - typically the lamps for tables or desks - already known that, while allowing to vary the direction of light according to multiple, also continuous, different angles by changing the position of the frame support, illuminate a rather limited if not purely punctual area, emitting the light with a minimum and substantially concentrated light cone, therefore not in the distributed or diffused way instead a complete and effective illumination of a broader environment having a certain size (room of a house or of an office and so on) requires and which actually makes these lamps unusable for these applications (lighting of environments).
Anyway, at present the user can change the direction of light emitted by the lighting means of lighting devices only indirectly, by solely operating on the components or on the structure supporting the lighting means and not also or only by varying the position of the latter.
Moreover, this takes place with purely technical-functional purposes, i.e. changing the direction of light due to changed user's requirements of the specifications and confined areas to be illuminated, even only temporarily, without involving any assessment about a significant variation of the overall aesthetic effect of the lighting device resulting from such a change and which is appreciable and appreciated by the eye of ordinary people, inevitably and unbeknownst careful mostly to factors linked with the decorative and ornamental aspect of the article concerned.
The present invention intends to overcome the drawbacks of the prior art highlighted above. In particular, main purpose of the present invention is to provide an adjustable lighting device which allows to irradiate the light in an environment of a certain size, such as a room of a building, effectively illuminating it, according to a number of angles higher than thta one allowed by analogues lighting devices of the prior art.
Otherwise said, it is primary object of the invention to create an adjustable lighting device which allows the end user to vary at will the orientation of the light emitted by the illumination means without this affecting negatively the effective and efficient lighting of the environment in which the lighting device is installed, but rather enhances the characteristics of the environment itself, if necessary, by using, for example, to the different types of people housed and to the various time periods, if not also to the moments of a day, the user's life that You can dispose of the lighting device.
It is another purpose of the present invention to devise an adjustable lighting device in which the change of direction of the light emitted by the lighting means takes place not only due to a variation, however, only partial and minimum, of the position of the frame, as it happens in the prior art, but also as a result of a concrete spatial orientation change of the lighting means themselves.
It is a last but not least purpose of the invention to develop an adjustable lighting device which, while it allows to vary at will, according to multiple adjustments, the direction of light in front of particular technical-functional requirements, varies at the same time also its own overall shape, assuming different configurations that from time to time significantly renew the aesthetic effect thereof to the point to be also easily appreciated by non-expert users.
In the conceptual sphere of these purposes, it is task of the present invention to make available an adjustable lighting device which widens compared to the present state of technology the range of luminous effects associated with a correct and effective lighting of an environment of a certain size.
It is a further task of the present invention to concrete an adjustable lighting device which is able to meet the increasingly specific needs of the customer, allowing this to modify at will the overall geometric configuration of a lighting device, without affecting its functionality and structural integrity and without incurring in the purchase of a new product whenever the needs for change are urgent and cannot be postponed.
It is, then, task of the invention to provide an adjustable lighting device which allows the end user to customize the geometric configuration of the article, according to a plurality of different positions, and to satisfy at least in part to the mutability of hos own aesthetic tastes as widely known, can change at a time also limited after purchase.
The foregoing purposes are achieved by means of an adjustable lighting device according to claim 1 attached hereto, as hereinafter referred for the sake of exposure brevity.
Additional technical features of detail of the adjustable lighting device of the invention are reported in the corresponding dependent claims.
The above-mentioned claims, in the following specifically and concretely defined, shall mean as integral part of the present description. Advantageously, the adjustable lighting device of the invention effectively illuminates an environment of a certain size, such as a room of a building, by arranging the lighting means according to various angles which by number are clearly higher than those ones obtainable with known lighting devices suitable to produce the same effects.
Equally advantageously, the adjustable lighting device of the invention is able to allow the end user to vary at will - depending on the own needs or more simply on his tastes - the orientation of the light emitted by the lighting means without adversely affect the effective and complete lighting of the environment in which the lighting device is installed.
This thanks to the fact that the lighting device of the present invention includes adjusting means of the direction of light emitted by the lighting means, operatively connected with the support frame and/or the lighting means in such a manner as to allow light direction change through the variation of the spatial geometry of the support frame according to a plurality of positions different each other and/or through the variation of the spatial orientation of the lighting means with respect to the support frame according to a plurality of positions different each other.
Still advantageously, the adjustable lighting device of the invention allows to change the direction of the light intended to illuminate an environment of a certain size and to simultaneously also obtain a substantial change, appreciated by anyone who also observes it from from a distance, of its overall shape and its ornamental capacity: the lighting device of the invention may, indeed, take several configurations distinct and different each other which change appreciably, renewing it, its aesthetic effect.
Equally advantageously, the configuration of the adjustable lighting device of the invention is customizable at will, at any time, by the end user, with simple and quick manual operations performed without the intervention of skilled persons and without the aid of adjustment tools and that, if they take place with due caution, do not affect in any way the structural integrity and functional capacity of its components.
In advantageous manner, moreover, the lighting device of the invention, thanks to its variable geometrical configuration, customizable and adaptable to the changing (over time) aesthetic needs of the end user, appears to be more pleasant to customer compared to equivalent lighting devices of type known, since the end-user with a same article may at least partly meet its own needs of ornamental effect change associated with a lighting device installed at a given height from the pavement, and in particular to the ceiling. Said purposes and advantages, as well as other ones which will emerge later, will appear more evident from the following description, relating to a preferred embodiment of the adjustable lighting device of the invention, given by way of indicative and illustrative, but not limiting, example with reference to the accompanying drawings, in which:
- figure 1 is a front view of the adjustable lighting device of the present invention, in applicative conditions and in a first possible spatial configuration;
- figure 2 is a side view of figure 1;
- figure 3 is an assonometric view of a first constructive assembly of figure 1;
- figure 4 is the enlarged and truncated assonometric view of a second constructive assembly of figure 1;
- figure 5 is the enlarged, simplified and truncated assonometric view of a third constructive assembly of figure 1;
- figure 6 is a simplified and partial assonometric view of the first assembly of figure 3;
- figure 7 is a front view of a detail of figure 6;
- figures 8-10 are three distinct partially exploded assonometric views of a detail of the first constructive assembly of figure 3;
- figure 11 is a front view of a first detail of figures 8-10;
- figure 12 is a front view of a second detail of figures 8-10;
- figure 13 is a partial assonometric view of a first detail of figure 4;
- figure 14 is an assonometric view of a second detail of figure 4;
- figure 15 is the front view of figure 14;
- figures 16-18 are three schematic and illustrative front views of as many different operating and applicative configurations of the lighting device of figure 1.
The adjustable lighting device of the invention is illustrated in figures 1-2 where it is globally numbered with 1.
It is observed that such an adjustable lighting device 1 comprises:
- a support frame, as a whole numbered with 2, provided with fixing means, indicated as a whole with 3 and useful to its stable coupling with a reference surface S, such as typically, although not exclusively, the ceiling of an environment (the room of a building) with respect to which is positioned facing;
lighting means, generically numbered with 4, suitable to be oeprated in order to illuminate the environment with respect to which they are positioned facing, coupled with the support frame 2 and electrically connected with an electric energy source, such as the electric system, made available at said environment.
According to the main innovative features of the invention, the adjustable lighting device 1 includes adjusting means of the direction of the light, overall indicated with 5, emitted by the lighting means 4, operatively connected with the support frame 2 and/or the lighting means 4 so as to allow light direction change through the variation of the spatial geometry (or configuration) of the support frame 2 according to a plurality of positions different each other and/or through the variation of the spatial orientation of the lighting means 4 with respect to the support frame 2 according to a plurality of positions different each other.
In particular, the adjusting means of the direction of the light 5 comprise first rotation means, overall indicated with 6 and associated with the support frame 2, and/or second rotation means, generally indicated with 7 and associated with the lighting means 4.
Figure 2 shows that, in preferred but not binding way, the support frame 2 comprises a first shaped finishing fin 8 and, in the case under description, only a second shaped finishing fin 9 having a profile equal to that one of the first shaped fin 8 from which it is physically separated by a given horizontal longitudinal distance D and with which it is mechanically connected through the lighting means 4.
More specifically, each of the shaped finishing fins 8, 9 defines an inner chamber, not visible in the figures attached, in which first electrical connection components, visible in part in figure 4 and in a more complete way in figure 5 where they are as a whole numbered with 10, are housed - and then hidden from view and suitably isolated -: these first electrical connection components 10 are connected, on one side, with the lighting means 4 and, on the other side, with second electrical connection components, clearly visible in figures 1-3 where tehya re overall numbered with 11, suitable to be electrically connected with the electric energy source mentioned above.
It should be noted that in other embodiments of the lighting device of the invention, not shown in the enclosed drawings, the support frame could include, depending on the application requirements, any number of second shaped finishing fins consecutively aligned among each other along a horizontal direction, fixed to the ceiling and each having a profile equal to that one of the first shaped fin.
In this case, the second shaped finishing fins will be physically separated each other in a specific horizontal longitudinal distance, equal or not to the longitudinal distance separating the first shaped finishing fin from the second shaped finishing fin directly adjacent to it and that typically does not exceed six linear metres, and they will be mechanically connected each other by lighting means of the type indicated with 4 in figure 2.
It follows that the lighting device of the invention will thus be modular in a horizontal longitudinal development and its installation could advantageously be adapted to environments of various size even partly communication with the outside, such as road tunnels.
In relation to the first electrical connection components 10, figure 5 shows that they, preferably, include in this case, three laminar bodies 12 equal each other, spaced apart and arranged along planes parallel each other: this in function of the specific illuminating choices matched to the preferred embodiment of the lighting device 1 described herein, which will become more apparent in the following description.
Each of these laminar bodies 12 is made of electrically conductive material, for example brass, presents substantially the same profile of the shaped finishing fins 8, 9 (as clearly visible in figures 6 and 7) and is provided with a connection plate 13, partially projecting from the opposite ends 8a, 9a of each of the shaped finishing fins 8, 9 themselves and electrically connected with the second electrical connection components 11.
In particular, the connection plate 13 is monolithic to the respective laminar body 12 and defines a transverse through hole 14 suitable to receive union means, not illustrated, for the electrical continuity between the first electrical connection components 10 and the second electrical connection components 11.
As far as the second electrical connection components 11 themselves, figures 1-3 demonstrate that they preferably comprise:
- three pairs of traction wires 15, 16 made of electrically conductive material, each of which provided with a first end 15a, 16a coupled with the first electrical connection means 10 - namely with the connection plate 13 - at one of the opposite ends 8a, 9a of each of the shaped finishing fins 8, 9;
- an interconnection joint 17 which a second end 15b, 16b of each of the traction wires 15, 16, positioned at a given distance from the reference surface S and connected by means of an auxiliary wire 17 with the fixing means 3, is made integral to.
More in detail, the interconnection joint 17 is equally spaced apart from the opposite ends 8a, 9a of each of the shaped finishing fins 8, 9 and the traction wires 15, 16 have equal length so that the opposite ends 8a, 9a of each of these shaped finishing fins 8, 9 and the interconnection joint 17 are continuously arranged according to the vertices of a hypothetical isosceles or equilateral triangle and confer regularity and linearity to the overall aesthetic effect of the lighting device 1.
According to the preferred embodiment described herein of the invention, each of the shaped finishing fins 8, 9 is composed of two finned semi-portions 19, 20 having inner ends 19a, 20a mutually complementary by profile and connected each other through the first rotation means 6 previously introduced, which allow a first adjustment of the light emitted by the lighting means 4 as a result of (or thanks to) the varation in the spatial geometry of the support frame 2.
The first rotation means 6 are arranged at the inner ends 19a, 20a of the finned semi-portions 19, 20 and, in the specific case, comprise:
- a concave surface belonging to the inner end 19a, 20a of one of the two finned semi- portions 19, 20;
- a convex surface, belonging to the inner end 19a, 20a of another of the two finned semi- portions 19, 20 and having an arched profile equal to the arched profile of the concave surface which is facing and arranged close, in such a way that the concave surface and the convex surface are slidably conjugated each other around a linear rotation axis Yi parallel to the horizontal longitudinal distance D.
Subsequent figures 8-10 show that, in this case, purely by preferred and advantageous manner, the first semi-finned portion 19 includes six shaped lamellae 22 made of high mechanical strength plastic material, such as polymethylmethacrylate (PMMA abridged or plexiglas®), arranged one facing and close the other and kept mutually compacted at the opposite ends through the second rotation means 7 yet introduced, as it will be better explained below.
In turn, the second semi-finned portion 20 includes six counter-shaped lamellae 23 which are also made of the same plastic material of the shaped lamellae 22, arranged one facing and close the other and kept mutually compacted at the opposite ends still through the second rotation means 7.
According to what previously described for the two finned semi-portions 19, 20, it follows that in accordance with the shape (concave or convex) of each of the counter-shaped lamellae 23 is complementary to the shape (convex or concave) of each of the corresponding shaped lamellae 22 to which is side-by-side in such a way as to be coplanar to it and to ensure the angular sliding of one with the other around the linear rotation axis Yi.
This constructive solution of the shaped finishing fins 8, 9 is particularly suitable to create a further element of customization of the ornamental motif associated with the lighting device 1 of the invention, since the various shaped lamellae 22 and the various counter-shaped lamellae 23 can be made with mutually different colours, suitably matched each other and to the intrinsic transparency which connotes the material, although coloured, with which are preferably made these lamellae 22, 23: this determines particularly attractive, refined and innovative light combinations which confer an aesthetic effect not obtainable with similar known lighting devices.
It appears in all evidence that the profile of the shaped lamellae 22 and of the couner-shaped lamellae 23, visible in figures 11 and 12 respectively, determines the overall profile of the first shaped finishing fin 8 and the second shaped finishing fin 9: the profile of the laminar bodies 12 adapts to it.
It should be noted, indeed, in figures 8-10 that, preferably but not necessarily, each of the three laminar bodies 12 of the first electrical connection components 10 is included (or better, kept pressed) between a pair of shaped lamellae 22 and between the pair of counter-shaped shaped lamellae 23 which, according to a linear direction X orthogonal to the linear rotation axis Yi, is directly flanked and complementary to the respective pair of shaped lamellae 22 with which cooperates with a rotary sliding movement.
In particular, as shown in figure 11, each of the aforesaid laminar bodies 12 is housed in a shaped recess 24 made in one of the side faces 22a, 23a of the shaped lamellae 22 and the counter-shaped lamellae 23 provided with convex surface at the zone (inner ends 19a, 20a of the finned semi-portions 19, 20) in which the first rotation means 6 are defined: in this way, each laminar body 12 is totally contained into the respective shaped lamella 22 or into the respective counter-shaped lamella 23, ensuring the perfect coplanarity of the relative lateral face 22a, 23a to which it is applied.
Preferably, each laminar body 12 is divided into two laminar semi-bodies 121 and 122, the first being interposed between a pair of shaped lamellae 22 and the second being interposed between the pair of counter-shaped lamellae 23 that, according to a linear direction X orthogonal to the linear rotation axis Yi, is directly flanked and complementary to the respective pair of shaped lamellae 22 with which cooperates with rotary sliding movement. At the zone in which the first rotation means 6 are defined (defined, as said, at the inner ends 19a, 20a of the finned semi-portions 19, 20), the two laminar semi-bodies 121 and 122 of each laminar body 12 interfere, in such a way that the respective ends 121a, 122a are arranged one facing and close the other, as it can be well derived from figure 6.
With references to the lighting means 4, in preferred but not binding manner, they comprise, as it is clear from the combination of figures 1, 2 and 4-6:
- a central LED devices assembly 25 aligned each other and the arrangement of which extends along a first horizontal linear direction Y;
- a pair of peripheral LED devices assemblies 26, 27 aligned each other, symmetrically arranged with respect to the first longitudinal direction Y and the arrangement of which develops along a pair of second horizontal linear direction Y', Y" parallel each other and to the first direction linear Y.
More specifically, each of the LED devices assemblies 25, 26, 27 comprises, in preferred although not exclusive title:
- a tubular body 28 visible dashed in figures 4 and 5 since made at least partly of transparent material: it develops for the aforesaid horizontal longitudinal distance D;
- a bar-shaped element 29, visible stand-alone although only partly in figure 13, which is develops for the abovementioned horizontal longitudinal distance D, contained stably into the tubular body 28 which is coupled with through quick-coupling means, numbered on the whole with 30, and having a pair of linear seats 31, 32 which develop along the horizontal longitudinal distance D;
a pair of LED devices strips, not visible, housed in the entire portion of the respective linear seats 31, 32.
Basically, therefore, the bar-shaped element 29 presents a first linear seat 31 housing a LED devices strip and a second linear seat 32, distinct and diametrically opposite to the first linear seat 31, and housing a LED devices strip.
Other embodiments of the adjsutable lighting device of the invention, not shown in the attached drawings, could provide that the bar-shaped element of each of the LED devices assemblies could provide only a single linear seat where one or more LED devices strips are housed.
In addition, other embodiments of the adjustable lighting device of the invention, yet not accompanied herein by reference figures, could provide that in each of the linear seat of the basr-shaped element a plurality of LED devices strips connected together in series are housed.
Furthermore, in other embodiments of the adjustable lighting device of the present invention, always not illustrated in the attached figures, the bar-shaped element of each of the LED devices assemblies could present only one or more linear seats housing one or more LED devices strips only on a defined portion of their length.
At preferred but non-binding title, the LED devices used in the invention have operating voltage typically selected aming the values of 24, 48 or 96 Volts in direct current; moreover the LED devices are suitably arranged very close, almost in contact, each other in such a way as to ensure a uniform and distributed diffusion of the light that avoids to produce dazzle effects, thus compensating to an intrinsic limitation of the LED devices consisting in the point-like character of the light they emitt.
The LED devices may be advantageously of the RGB type (acronym, as known, of Red- Green-Blue), in such a way that the tubular body 28 of the LED devices assemblies 25, 26, is illuminated even during natural and/or artificial dark conditions, while the LEDs are off.
Figure 13 highlights that, suitably but not necessarily, the bar-shaped element 29, made for example of metallic material such as aluminum, presents in cross section a prismatic profile, composed of a central portion 33 which the LED devices strips are associated with on opposite sides and by two pairs of lateral projections 34, 35 distinct and separated each other in siuch a way as to form the respective linear seats 31, 32 and designed to dissipate the heat emitted by the LED devices strips.
The two lateral projections 34 are arranged symmetrically each other with respect to the first longitudinal direction Y and separated by the linear seat 31, as well as the two lateral projections 35 that are separated by the linear seat 32.
It is clear that in the case in which, in other embodiments of the invention, the bar-shaped element has only one linear seat, it will be composed, as well as by the central portion, only by a pair of lateral projections.
As far as the quick-coupling means 30 previously introduced are concerned, they preferably comprise four longitudinal teeth, not visible in the accompanying figures, each of which protruding from the inner wall of the tubular body 28 and snap-engaged or pressure- engaged into a longitudinal groove 36 made in the four lateral projections 34, 35 of the bar- shaped element 29. It is understood that in other embodiments of the invention, not shown, the quick-coupling means could include a number of longitudinal teeth lower than four, for example one or two, which are snap-engaged, by mechanical interference or pressure-engaged into relative longitudinal grooves, especially if the bar-shaped element is comopsoed by a single pair of lateral projections which delimit a single linear seat.
In the figures mentioned up to now it is possible to observe that each of the LED devices assemblies 25, 26, 27 is coupled with the support frame 2 through the second rotation means 7 which allow a second adjustment of the light emitted by the lighting means 4 through the variaiotn of the spatial orientation of the lighting means 4 themselves with respect to the support frame 2.
More particularly, figures 5, 6, 8-10, 14 and 15 show that the second rotation means 7 comprise in the specific case:
- a positioning insert 37 made integral through junction means, indicated as a whole with 38, to each of the ends of the tubular body 28 of each of the LED devices assemblies 25, 26, 27 and supporting each of the shaped finishing fins 8, 9;
- guide and electrical continuity means, numbered as a whole with 39, through which the positioning insert 37 is coupled with the laminar body 12 of the first electrical connection component 10: the guide and electrical continuity means 39 make the positioning insert 37 freely rotatable around each of the respective horizontal linear Y, Y', Y".
Preferably but not exclusively, the junction means 38 comprise:
- a pair of pins 40, visible in figures 6 and 8-10, inserted into a pair of blind holes 41 (better visible in figure 15) made in the outer face 42a, facing towards the ends of the tubular body 28, of a strike head 42 of the positioning insert 37, and into a pair of longitudinal lightening grooves 43 opposite each other (better visible in figure 13), having open profile and made in the bar-shaped element 29 in such a way that each of the longitudinal grooves 43 result coaxial to one of the blind holes 41;
a front flange 44 suitable to remain at sight, opposite and coaxial to the strike head 42 which is separated from by a reentrant stem 45 belonging to the positioning insert 37 and contained into each of the shaped finishing fins 8, 9;
- a fixing screw 59 which is inserted into a first through opening 46 made in the thickness of the front flange 44 and engages in a second through opening 47, made in the reentrant stem 45 and in the strike head 42 of the positioning insert 37 coaxially to the first through opening 46, and in a third through opening 60 made in the bar-shaped element 29 coaxially to the first through opening 46 and to the second through opening 47.
In the specific case, the reentrant stem 45 presents a first linear auxiliary seat 48, suitable to house one or more additional LED devices strips, not shown for simplicity, and a second linear auxiliary seat 49, distinct and diametrically opposite to the first auxiliary linear seat 48 and suitable to house one or more additional LED devices strips.
The additional LED devices strips are applied to the auxiliary linear seats 48, 49 of the reentrant stem 45 of the positioning insert 37 in case the shaped finishing fins 8, 9 are made of transparent plastic material, in particular of neutral colour.
In a preferred but not limiting manner, the guide and electrical continuity means 39 comprise:
- a pair of peripheral rings 50, 51 opposite each other which belong to the laminar body 12 of the first electrical connection components 10, are placed at the respective connection plate 13 present at the opposite ends 8a, 9a of each of the shaped finishing fins 8, 9 and define a pair of peripheral through holes 52, 53 which the reentrant stem 45 of the positioning insert 37 of the peripheral LED devices assemblies 26, 27 is inserted into;
- a central ring 54 which belongs to the laminar body 12 of the first electrical connection components 10, is connected with each of the peripheral rings 50, 51 through an electrical bridge lamina 55, is arranged at the central zone 8c, 9c of each of the shaped finishing fins 8, 9 and defines a central through hole 56 which is inserted the reentrant stem 45 of the positioning insert 37 of the central LED device assembly 25 into;
- three ball bearings 57 (in general they are as many as the number of the laminar bodies of the first electrical connection components), each of which partly protrudes from the reentrant stem 45 of the positioning insert 37 of the LED devices assemblies 25, 25, 27 and cooperating by contact, on one side, with the annular inner surface 50a, 51a, 54a of each of the peripheral rings 50, 51 and the central ring 54 and, on the other side, with elastic means, not shown for ease of exposition, housed inside the reentrant stem 45 and suitable to constantly keep the respective ball bearing 57 close to the annular inner surface 50a, 51a, 54a of the peripheral rings 50, 51 and the central ring 54.
In function of this constructive conception, the ball bearing 57 represents the electrical contact connection point carried by the laminar body 12 and transferred to the LED devices assemblies 25, 26, 27 by means of laminar plates 58, clearly visible in figure 5, associated with the reentrant stem 45 of the positioning insert 37 integral with each of the ends of the tubular body 28 of each of the LED devices assemblies 25, 26, 27.
Final figures 16-18 illustrate in a schematic but explanatory way the adjustable system of the spatial geometric configuration of the support frame 2 and the spatial orientation of the lighting means 4 with respect to said support frame 2 verifiable in the adjustable lighting device 1 of the invention.
The adjustable lighting device 1 of the invention, thanks to its particular adjusting means of the direction of the light 5 emitted by the lighting means 4, allows to get a multiplicity of luminous effects different each other with which it is possible to illuminate at will, but still effectively, the environment in which the lighting device 1 itself is installed.
The variation of the light emitted by the lighting means 4 occurs by varying the position of the lighting means 4 themselves with respect to the support frame 2 and/or the spatial position of the support frame 2 itself: in the latter case, with a variation of the direction of the light a clear, meaningful and easily appreciable variation of the overall aesthetic effect of the adjustable lighting device 1 is advantageously associated, obtained with simple and quick, even if careful, manoeuvres performed even by an user not versed in the assembly of these electrical components and without affecting the structural and functional integrity thereof. Even the variable number of laminar bodies belonging to the first electrical connection components and contained into the inner chamber of the shaped finishing fins affect the variability of luminous effects obtainable with the adjustable lighting device 1 of the invention, this number varying from one up to any number as long as compatible with the designed and configurable dimensions of the shaped finishing fins themselves. In the embodiment previously described, the number of laminar bodies 12 forming the electrical bridge among the various LED devices assemblies 25, 26, 27 is set at three but such a number could vary starting from one to five in optional and alternative embodiments, depending on the design choices, lighting effects that is desired to achieve and lighting needs to meet. On the basis of the description just given, it is understood, therefore, that the adjustable lighting device of the present invention achieves the purposes and reaches the advantages previously mentioned.
Upon implementation, changes could be made to the adjustable lighting device of the present invention consisting, for example, in adjusting means of the direction of the light emitted by the lighting means different from those ones previously described. In this regard, in particular, the first rotation means and the second rotation means with which are obtained, preferably, the adjustment effects described above and constituting part of the purposes of the invention could be differnent in alternative embodiments, not shown, of the adjustable lighting device which is claimed herewith as exclusive right.
Other embodiments of the adjustable lighting device claimed herein, yet not represented, coudl exist in which the support frame presents constructive conception and composition different from that one shown in the accompanying figures and described above, which does not affect the advantage brought by the present invention.
In particular, the support frame could comprise two shaped finishing fins each composed of two finned semi-portions, having inner ends connected each other through first rotation means and a respective box-like structure which defines an inner chamber in the which the first electrical connection components are housed (then still hidden at sight, protected and not directly accessible in full compliance with the safety conditions).
It is, finally, clear that several other changes could be made to the adjustable lighting device concerned, without departing from the principle of novelty intrinsic in the inventive idea expressed herein, as it is clear that, in the practical implementation of the invention, materials, shapes and sizes of the illustrated details could be changed, as needed, and replaced with others technically equivalent.
Where the constructive features and techniques mentioned in the following claims are followed by reference numbers or signs, those reference signs have been introduced with the sole objective of increasing the intelligibility of the claims themselves and therefore they have no limiting effect on the interpretation of each element identified, by way of example only, by these reference signs.

Claims

1. Adjustable lighting device (1) comprising:
- a support frame (2) provided with fixing means (3) for its stable coupling with a reference surface (S) of an environment which is positioned facing with respect to;
- lighting means (4) suitable to be operated in order to illuminate said environment which are positioned facing with respect to, coupled with said support frame (2) and electrically connected with an electric energy source made available at said environment, characterized in that it comprises adjusting means of the direction of the light (5) emitted by said lighting means (4), operatively connected with said support frame (2) and/or said lighting means (4) in such a way as to allow light direction change through the variation of the spatial geometry of said support frame (2) according to a plurality of positions different each other and/or through the variation of the spatial orientation of said lighting means (4) with respect to said support frame (2) according to a plurality of positions different each other.
2. Device (1) according to claim 1), characterized in that said support frame (2) comprises a first shape fmishing fin (8) and at least one second shaped finishing fin (9) having a profile equal to said first shaped fin (8) which is physically separated from by a given horizontal longitudinal distance (D) and which is mechanically connected with through said lighting means (4), each of said shaped finishing fins (8, 9) defining an inner chamber in which first electrical connection components (10) are housed connected, on one side, with said lighting means (4) and, on the other side, with second electrical connection components (11) suitable to be electrically connected with said electrical energy source.
3. Device (1) according to claim 2), characterized in that said first electrical connection components (10) comprise at least one laminar body (12) made of electrically conductive material, having substantially the same profile of said shaped fmishing fins (8, 9) and provided with a connection plate (13), partially projecting from the opposite ends (8a, 9a) of each of said shaped finishing fins (8, 9) and electrically connected with said second electrical connection components (11).
4. Device (1) according to claim 2) or 3), characterized in that said second electrical connection components (11) comprise:
- at least one pair of traction wires (15, 16) made of electrically conductive material, each of which presents a first end (15a, 16a) coupled with said first electrical connection components (10) at one of the opposite ends ( 8a, 9a) of each of said shaped fmishing fins (8, 9);
- an interconnection joint (17) which a second end (15a, 16a) of each of said tension wires (15, 16) is made integral to, positioned at a given distance from said reference surface (S) and connected by means of an auxiliary wire (18) with said fixing means (3).
5. Device (1) according to claim 4), characterized in that said interconnection joint (17) is equally spaced apart from said opposite ends (8a, 9a) of each of said shaped finishing fins (8, 9) and said traction wires (15, 16) have equal length so that said opposite ends (8a, 9a) of each of said shaped finishing fins (8, 9) and said interconnection joint (17) are arranged according to the vertices of a hypothetical isosceles or equilateral triangle.
6. Device (1) according to any of the claims 2) to 5), characterized in that each of said shaped finishing fins (8, 9) is composed of two finned semi-portions (19, 20) having inner ends (19a, 20a) mutually complementary by profile and connected each other through first rotation means (6) which allow a first adjustment of the light emitted by said lighting means (4) through said variation of said spatial geometry of said support frame (2).
7. Device (1) according to claim 6), characterized in that said first rotation means (6) are placed at said inner ends (19a, 20a) of said finned semi-portions (19, 20) and comprise:
- a concave surface belonging to the inner end (19a) of one of said finned semi-portions (19, 20);
- a convex surface, belonging to the inner end (20a) of another of said finned semi- portions (19, 20) and having an arched profile equal to the arched profile of said concave surface which is facing and arranged close to in such a way that said concave surface and said convex surface are slidably conjugated each other around a linear rotation axis (Yi) parallel to said horizontal longitudinal distance (D).
8. Device (1) according to any of the preceding claims, characterized in that said lighting means (4) comprise:
- a central LED devices assembly (25) aligned each other and the arrangement of which extends along a first horizontal linear direction (Y);
- a pair of peripheral LED devices assemblies (26, 27) aligned each other, symmetrically arranged with respect to said first longitudinal direction (Y) and the arrangement of which extends along a pair of second horizontal linear directions (Υ', Y") parallel to said first linear direction (Y).
9. Device (1) according to claim 8) when claim 8) depends on claim 3), characterized in that each of said LED devices assemblies (25, 26, 27) comprises:
a tubular body (28) made of at least partly transparent material and which develops for said horizontal longitudinal distance (D);
- a bar-shaped element (29) which develops for said horizontal longitudinal distance (D), stably contained into said tubular body (28) which is coupled with through quick- coupling means (30) and having at least one linear seat (31, 32 ) which develops along said horizontal longitudinal distance (D);
- one or more LED devices strips housed in at least a portion of said linear seat (31, 32).
10. Device (1) according to claim 9), characterized in that said bar-shaped element (29) presents a first linear seat (31) housing one or more of said LED devices strips and a second linear seat (32), distinct and diametrically opposite to said first linear seat (31) and housing one or more of said LED devices strips.
11. Device (1) according to claim 10), characterized in that said LED devices strips housed in said first linear seat (31) are operable independently from said LED devices strips housed in said second linear seat (32).
12. Device (1) according to claim 9), 10) or 11), characterized in that said bar-shaped element (29) presents in cross section a prismatic profile, composed by a central portion (33) which said LED device strips are associated with and by at least one pair of lateral projections (34, 35) distinct and separated each other in such a way as to form said linear seat (31, 32) and suitable for the dissipation of the heat emitted by said LED devices strips.
13. Device (1) according to claim 12), characterized in that said quick-coupling means (30) comprise at least one longitudinal tooth projecting from the inner wall of said tubular body (28), which snap or pressure engages into a longitudinal groove (36) made in at least one of said lateral projections (34, 35) of said bar-shaped element (29).
14. Device (1) according to any of the claims 8) to 13), characterized in that each of said LED devices assemblies (25, 26, 27) is coupled with said support frame (2) through second rotation means (7) which allow a second adjustment of the light emitted by said lighting means (4) through said variation of said spatial orientation of said lighting means (4) with respect to said support frame (2).
15. Device (1) according to claim 14) when claim 14) depends on claim 9) characterized in that said second rotation means (7) comprise: - a positioning insert (37) made integral through junction means (38) to each of the ends of said tubular body (28) of each of said LED devices assemblies (25, 26, 27) and supporting each of said shaped finishing fins (8, 9);
- guide and electrical continuity means (39), through which said positioning insert (37) is coupled with said laminar body (12) of said first electrical connection components (10), suitable to make said positioning insert (37) freely rotatable around each of said linear horizontal directions (Y, Y', Y").
16. Device (1) according to claim 15) characterized in that said junction means (38) comprise:
- a pair of pins (40) inserted into a pair of blind holes (41) made in the outer face (42a), facing towards said ends of said tubular body (28), of a strike head (42) of said positioning insert (37), into a pair of longitudinal lightening grooves (43) opposite each other, having open profile and made in said bar-shaped element (29) in such a way that each of said longitudinal grooves (43) is coaxial to one of said blind holes (41), and into a third through opening (60) made in said bar-shaped element (29);
- a front flange (44) suitable to remain at sight, coaxial to said strike head (42) which is separated from by a reentrant stem (45) belonging to said positioning insert (37) and contained into each of said shaped finishing fins ( 8, 9);
- a fixing screw (59) which is inserted into a first through opening (46) made in said front flange (44) and engages in a second through opening (47) made in said reentrant stem (45) and in said strike head (42) of said positioning insert (37) coaxially to said first through opening (46).
17. Device (50) according to claim 16), characterized in that said reentrant stem (45) presents a first linear auxiliary seat (48), housing one or more additional LED devices strips, and a second linear auxiliary seat (49 ), distinct and diametrically opposite to said first linear auxiliary seat (48) and housing one or more additional LED devices strips.
18. Device (1) according to claim 16) or 17), characterized in that said guide and electrical continuity means (39) comprise:
a pair of peripheral rings (50, 51) opposite each other which belong to said laminar body (12) of said first electrical connection components (10), are placed at said connection plate (13) present in said opposite ends (8a, 9a) of each of said shaped finishing fins (8, 9) and define a pair of peripheral through holes (52, 53) which said reentrant stem (45) of said insert positioning (37) of said peripheral LED devices assemblies (26, 27) is inserted into;
- a central ring (54) that belongs to said laminar body (12) of said first connection components (10), is connected with each of said peripheral rings (50, 51) through an electrical bridge lamina (55), is arranged at the central zone (8c, 9c) of each of said shaped finishing fins (8, 9) and defines a central through hole (56) which said reentrant stem (45) of said insert positioning (37) of said central LED devices assembly (25) is inserted into;
at least one ball bearing (57) partly projecting from said reentrant stem (45) of said positioning insert (37) of said LED devices assemblies (25, 26, 27) and cooperating by contact, on one side, with the annular inner surface (50a, 51a, 54a) of said peripheral rings (50, 51) and said central ring (54) and, on the other side, with elastic means housed inside said reentrant stem (45) and suitable to keep said ball bearing (57) continuously adjacent to said annular inner surface (50a, 51a, 54a) of said peripheral rings (50, 51) and said central ring (54).
19. Device (1) according to claim 18), characterized in that said bearing ball (57) represents the electrical contact connection point carried by said laminar body (12) and transferred to said LED devices assemblies (25, 26, 27) by means of laminar plates (58) associated with said reentrant stem (45) of said positioning insert (37).
PCT/IB2016/051564 2015-04-14 2016-03-21 Adjustable lighting device WO2016166621A1 (en)

Applications Claiming Priority (2)

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ITPD2015A000081 2015-04-14
ITPD2015A000081A ITPD20150081A1 (en) 2015-04-14 2015-04-14 ADJUSTABLE LIGHTING DEVICE

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WO2016166621A1 true WO2016166621A1 (en) 2016-10-20

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WO2024003284A1 (en) * 2022-07-01 2024-01-04 Signify Holding B.V. Linear lighting device with multiple pivotable linear light sources

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CN114576587B (en) * 2022-02-28 2024-05-14 广州金霸建材股份有限公司 Lamp slot ceiling structure and use method thereof
WO2024003284A1 (en) * 2022-07-01 2024-01-04 Signify Holding B.V. Linear lighting device with multiple pivotable linear light sources

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