EP1757858A2 - Illumination device with modular and movable lamp holder for display cabinets and/or display spaces - Google Patents

Illumination device with modular and movable lamp holder for display cabinets and/or display spaces Download PDF

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Publication number
EP1757858A2
EP1757858A2 EP06076517A EP06076517A EP1757858A2 EP 1757858 A2 EP1757858 A2 EP 1757858A2 EP 06076517 A EP06076517 A EP 06076517A EP 06076517 A EP06076517 A EP 06076517A EP 1757858 A2 EP1757858 A2 EP 1757858A2
Authority
EP
European Patent Office
Prior art keywords
conductors
base
lamp holder
light sources
lamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06076517A
Other languages
German (de)
French (fr)
Other versions
EP1757858A3 (en
Inventor
Renato Nobili
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.)
Sarno SpA
Original Assignee
Sarno SpA
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 Sarno SpA filed Critical Sarno SpA
Publication of EP1757858A2 publication Critical patent/EP1757858A2/en
Publication of EP1757858A3 publication Critical patent/EP1757858A3/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/001—Devices for lighting, humidifying, heating, ventilation
    • 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
    • F21V21/34—Supporting elements displaceable along a guiding element
    • F21V21/35—Supporting elements displaceable along a guiding element with direct electrical contact between the supporting element and electric conductors running along the guiding element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • H01R25/147—Low voltage devices, i.e. safe to touch live conductors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/405—Lighting for industrial, commercial, recreational or military use for shop-windows or displays
    • 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 illumination device for display cabinets or display areas of both a public and private nature.
  • the technical problem which is posed, therefore, is that of providing an illumination device for display cabinets and/or display spaces intended for products of various kinds, which allows diffusion of light over all the objects displayed, without the need for electrical wiring and/or electrical connections in respect of each surface/area to be illuminated.
  • the display cabinet should be easy and inexpensive to produce and assemble and allow variation of the relative arrangement of the light sources so that the latter are directed towards the product without the need for structural modifications of the display cabinet and/or the illumination system.
  • an illumination device for display cabinets or display areas comprising at least one base to which conductors are fixed and at least one lamp-holder body inside which light sources are arranged, said lamp holder having, attached thereto, resilient means arranged in a position opposite to that of the conductors for relative mechanical and electrical connection.
  • the illumination device for display cabinets comprises:
  • the vertical surfaces 410a of the insulating base 410 have, formed therein, seats 411 extending longitudinally substantially over the entire length of the said base and able to contain conductors 412 in the form of bars with a substantially parallelepiped or dovetail shape as shown, these bars being supplied with low-voltage direct current by means of corresponding power supply means connected to the electrical network, not shown in that they are conventional per se and able to determine the dual polarity (-) and (+) of the electrical circuit of the light sources;
  • the base 410 has a free edge 413 shaped so as to form the male element of a connection, the female element 423 of which is formed in the insulating body 420a of a lamp holder 420;
  • the lamp holder has in turn two plates 422a arranged on the opposite sides of an insulating body 420a and with opposite vertical edges suitably projecting in the direction Z-Z towards the outside of the said insulating body; the end edge of each blade designed for engagement with the base 410 has a concave shape 422 and is arranged in a position corresponding to and opposite to that of the conducting bars 412 of the base 410 with which the convex side of the said concave ends engages during use as a result of the resilient force of the blade 422a so as to form the mechanical retaining element of the lamp holder and the conduction of the electric circuit closed on the opposite side by the electrical contacts of the light sources 21 suitably inserted in an insulating body 420b able to engage with the said other projecting part of the blades 422a.
  • Said LEDs are suitably connected, by means of conductors 421a incorporated in the lamp-holder body 420, via which they receive the d.c. power supply.
  • Figs. 3 and 4 show a further embodiment of the device according to the invention substantially complementing the previous embodiment.
  • the base 510 has a substantially U-shaped insulating body with conductors 512 arranged in the associated seats 511 on the inside of the vertical arms 510a of the "U" and lamp-holder 520 consisting of an insulating body 520a, to which blades with a convex-shaped free end 522 are fixed, and a head piece 520b inside which the LEDs 521 are arranged as already described.
  • the lamp holder 520 is inserted inside the base so that the resilient action of the convex blades produces the mechanical retaining action and electrical contact, resulting in electrical operation entirely similar to that already described.
  • the lamp-holder of both the solutions generally indicated by 20 is divided into two parts 20a and 20b, respectively, which are joined together by means of the hinging means 25, as shown purely by way of example in Fig. 5, having a spherical body, able to allow a relative rotational and/or translatory movement of one part 20a and the other part 20b of the lamp holder, so as to allow directing of the light sources 21 according to the specific applicational requirements.
  • a heat-conducting element 26 able to dissipate the heat generated by the light sources is also associated with the lamp holder 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

Illumination device for display cabinets or display areas, comprising at least one base (410;510) to which conductors (412;512) are fixed and at least one lampholder body (20;420;520) inside which light sources (21) are arranged, said lamp holder having, attached thereto, resilient means (422;522) arranged in a position opposite to that of the conductors (412;512) for relative mechanical and electrical connection.

Description

  • The present invention relates to an illumination device for display cabinets or display areas of both a public and private nature.
  • It is known that in the technical sector relating to the manufacture of display cabinets for products of various kinds, such as cosmetics, perfumes and the like, there exist problems arising from the need to illuminate the said products arranged on the various shelves of the display cabinet, while ensuring at the same time the safety of the user who, when approaching the display cabinet and removing an article, must not, even accidentally, come into contact with live electrical parts.
  • For this purpose, numerous devices able to achieve optimum insulation of the visible parts of the display cabinet, using also low voltage illumination means, have been developed.
  • These known display cabinets nevertheless require the installation of complicated and costly electrical wiring and/or electrical contact means of the sliding type, which increase considerably the costs of production and maintenance of the display cabinet.
  • The technical problem which is posed, therefore, is that of providing an illumination device for display cabinets and/or display spaces intended for products of various kinds, which allows diffusion of light over all the objects displayed, without the need for electrical wiring and/or electrical connections in respect of each surface/area to be illuminated.
  • In the context of this problem a further requirement is that the display cabinet should be easy and inexpensive to produce and assemble and allow variation of the relative arrangement of the light sources so that the latter are directed towards the product without the need for structural modifications of the display cabinet and/or the illumination system.
  • These results are obtained according to the present invention by an illumination device for display cabinets or display areas comprising at least one base to which conductors are fixed and at least one lamp-holder body inside which light sources are arranged, said lamp holder having, attached thereto, resilient means arranged in a position opposite to that of the conductors for relative mechanical and electrical connection.
  • Further details may be obtained from the following description of a non-limiting example of embodiment of the subject of the present invention provided with reference to the accompanying drawings in which:
    • Figure 1 shows a partially exploded schematic perspective view of a first embodiment of the illumination device according to the present invention;
    • Figure 2 shows a partially sectioned view of the device according to Fig. 1 assembled;
    • Figures 3 shows a partially exploded schematic perspective view of a second embodiment of the illumination device according to the present invention;
    • Figure 4 shows a partially sectioned view of the device according to Fig. 1 assembled; and
    • Figure 5 shows a schematic cross-section of a preferred embodiment of the lamp holder of the device according to the invention.
  • As shown in Fig. 1, with reference to the set of three directional axes assumed solely for the sake of convenience of the description, the illumination device for display cabinets according to the present invention comprises:
    • a fixed base 410 consisting of a body made of insulating material and having a substantially parallelepiped extension with a longitudinal dimension X-X and vertical dimension Z-Z much greater than the transverse dimension Y-Y;
  • The vertical surfaces 410a of the insulating base 410 have, formed therein, seats 411 extending longitudinally substantially over the entire length of the said base and able to contain conductors 412 in the form of bars with a substantially parallelepiped or dovetail shape as shown, these bars being supplied with low-voltage direct current by means of corresponding power supply means connected to the electrical network, not shown in that they are conventional per se and able to determine the dual polarity (-) and (+) of the electrical circuit of the light sources;
    the base 410 has a free edge 413 shaped so as to form the male element of a connection, the female element 423 of which is formed in the insulating body 420a of a lamp holder 420;
    • a lamp-holder body 420 inside which the light sources 21, preferably consisting of power LEDs (Light Emitter Diodes), are arranged.
  • The lamp holder has in turn two plates 422a arranged on the opposite sides of an insulating body 420a and with opposite vertical edges suitably projecting in the direction Z-Z towards the outside of the said insulating body; the end edge of each blade designed for engagement with the base 410 has a concave shape 422 and is arranged in a position corresponding to and opposite to that of the conducting bars 412 of the base 410 with which the convex side of the said concave ends engages during use as a result of the resilient force of the blade 422a so as to form the mechanical retaining element of the lamp holder and the conduction of the electric circuit closed on the opposite side by the electrical contacts of the light sources 21 suitably inserted in an insulating body 420b able to engage with the said other projecting part of the blades 422a.
  • Said LEDs are suitably connected, by means of conductors 421a incorporated in the lamp-holder body 420, via which they receive the d.c. power supply.
  • Figs. 3 and 4 show a further embodiment of the device according to the invention substantially complementing the previous embodiment. In this case, in fact, the base 510 has a substantially U-shaped insulating body with conductors 512 arranged in the associated seats 511 on the inside of the vertical arms 510a of the "U" and lamp-holder 520 consisting of an insulating body 520a, to which blades with a convex-shaped free end 522 are fixed, and a head piece 520b inside which the LEDs 521 are arranged as already described.
  • In this configuration the lamp holder 520 is inserted inside the base so that the resilient action of the convex blades produces the mechanical retaining action and electrical contact, resulting in electrical operation entirely similar to that already described.
  • According to a preferred embodiment, it is also envisaged that the lamp-holder of both the solutions generally indicated by 20 is divided into two parts 20a and 20b, respectively, which are joined together by means of the hinging means 25, as shown purely by way of example in Fig. 5, having a spherical body, able to allow a relative rotational and/or translatory movement of one part 20a and the other part 20b of the lamp holder, so as to allow directing of the light sources 21 according to the specific applicational requirements.
  • It is envisaged, moreover, that a heat-conducting element 26 able to dissipate the heat generated by the light sources is also associated with the lamp holder 20.
  • It is therefore clear how with the device according to invention it is possible to obtain effective illumination of display cabinets and/or display areas of widely varying forms without the need for complicated electrical wiring and with low-voltage light sources which cannot be accessed by the user who is therefore guaranteed maximum safety during installation and/or removal of the displayed product.
  • In addition to this, the possibility of modular composition by means of a plurality of individual lamp holders mounted on a common base allows easy replacement of any faulty light sources in a simple and rapid manner in exactly the same way as replacement of a blown lamp bulb.

Claims (18)

  1. Illumination device for display cabinets or display areas, characterized in that it comprises at least one base (410;510) to which conductors (412;512) are fixed and at least one lamp-holder body (20;420;520) inside which light sources (21) are arranged, said lamp holder having, attached thereto, resilient means (422;522) arranged in a position opposite to that of the conductors (412;512) for relative mechanical and electrical connection.
  2. Device according to Claim 1, characterized in that said base (410;510) has, formed therein, seats (411;511) for containing said conductors (412;512).
  3. Device according to Claim 1, characterized in that said seats (411;511) extend in the longitudinal direction and said conductors are in the form of bars (412;512) with a substantially parallelepiped shape.
  4. Device according to Claim 1, characterized in that said conducting bars (412;512) have a cross-section with a dovetail shape.
  5. Device according to Claim 3, characterized in that said bars (412;512) are supplied with low-voltage direct current by means of corresponding power supply means connected to the electrical network.
  6. Device according to Claim 1, characterized in that said lamp holder (420;520) is movable relative to the fixed base (410;510).
  7. Device according to Claim 1, characterized in that said light sources (21) consist of power LEDs.
  8. Device according to Claim 1, characterized in that said light sources (21) are connected by means of conductors (21a;421a) incorporated in the lamp-holder body (420;520) to the retaining means (422;522) by means of which they receive the d.c. power supply.
  9. Device according to Claim 1, characterized in that said lamp-holder (20) is divided into two parts (20a,20b) connected together by means (25) able to allow a relative rotational and/or translatory movement.
  10. Device according to Claim 1, characterized in that a heat-conducting element (26) able to dissipate the heat generated by the light sources (21) is associated with the lamp holder (20).
  11. Device according to Claim 1, characterized in that said base (410) has a substantially parallelepiped extension with a longitudinal dimension (X-X) and vertical dimension (Z-Z) much greater than the transverse dimension (Y-Y).
  12. Device according to Claim 11, characterized in that the conductors (412) are inserted in the outer vertical surfaces (410a) of the insulating base (410).
  13. Device according to Claim 11, characterized in that said base (410) has a free edge (413) shaped so as to form the male element of a connection, the female element (423) of which is formed in the insulating body (420a) of the lamp holder (420).
  14. Device according to Claim 11, characterized in that the lamp holder (420) has two plates (422a) arranged on opposite sides of an insulating body (420a) and with opposite vertical edges suitably projecting towards the outside of the said insulating body in the vertical direction (Z-Z).
  15. Device according to Claim 14, characterized in that the end edge of each blade (422a) designed to engage with the base (410) has a concave shape (422) able to adhere to the conductors (412).
  16. Device according to Claim 11, characterized in that the light sources (21) are suitably inserted in a body (420b) suitable for mechanical and electrical connection with the corresponding projecting end edge of each blade (422a).
  17. Device according to Claim 1, characterized in that the base (510) has a substantially U-shaped insulating body with conductors (512) arranged in associated seats (511) on the inside of the vertical arms (510a) of the said "U".
  18. Device according to Claim 1, characterized in that the lamp holder (520) consists of an insulating body (520a), to which blades (522a) with a convex-shaped free end (522) are fixed, and a head-piece (520b) inside which the LEDs (21) are arranged.
EP06076517A 2005-08-26 2006-08-02 Illumination device with modular and movable lamp holder for display cabinets and/or display spaces Withdrawn EP1757858A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000301U ITMI20050301U1 (en) 2005-08-26 2005-08-26 LIGHTING DEVICE WITH MODULAR AND MOBILE PARTALAMPADA FOR EXHIBITORS AND EXHIBITION SPACES

Publications (2)

Publication Number Publication Date
EP1757858A2 true EP1757858A2 (en) 2007-02-28
EP1757858A3 EP1757858A3 (en) 2008-10-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06076517A Withdrawn EP1757858A3 (en) 2005-08-26 2006-08-02 Illumination device with modular and movable lamp holder for display cabinets and/or display spaces

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EP (1) EP1757858A3 (en)
IT (1) ITMI20050301U1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101721076B (en) * 2009-11-03 2011-05-18 江苏格林电器有限公司 Matching structure of top plate and lamp box cover of food refrigerated display cabinet
CN104315472A (en) * 2014-09-15 2015-01-28 安徽易奇软件科技有限公司 Microelectronically-controlled power supply
EP3321563A1 (en) * 2016-11-09 2018-05-16 Robert A. Sonneman Light bar for a lighting system
US10018339B2 (en) 2016-01-07 2018-07-10 Robert A. Sonneman Modular lighting system using hangers and power bars
US10151466B2 (en) 2016-11-09 2018-12-11 Contemporary Visions, LLC Laterally supported lights
US10174923B2 (en) 2016-11-09 2019-01-08 Contemporary Visions, LLC Hanger for a modular lighting system having a main body with two channels to accommodate two segments of a power bar
US10184645B2 (en) 2016-11-09 2019-01-22 Contemporary Visions, LLC Cylindrical housing for modular lighting system
US10281126B2 (en) 2016-11-09 2019-05-07 Contemporary Visions, LLC Power bar hanger for modular lighting system
US10359182B2 (en) 2016-11-09 2019-07-23 Contemporary Visions, LLC Ring power bar hanger for modular lighting fixture
WO2024026831A1 (en) * 2022-08-02 2024-02-08 林伟亮 Automatic exhibition stand for placing light-transmitting treasure

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DE4312671A1 (en) * 1993-04-19 1995-01-05 Hans Juergen Breitzler Fa Luminaire system with a combination rail of variable design
SE9303176D0 (en) * 1993-09-29 1993-09-29 Nordic Light Lighting equipment
WO1998051963A2 (en) * 1997-05-12 1998-11-19 Hays G Alan Lighting system
US6540372B2 (en) * 2000-07-31 2003-04-01 Lites Now, Llc Electrical track lighting system
US20050146899A1 (en) * 2001-07-31 2005-07-07 Litesnow Llc Electrical lighting systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101721076B (en) * 2009-11-03 2011-05-18 江苏格林电器有限公司 Matching structure of top plate and lamp box cover of food refrigerated display cabinet
CN104315472A (en) * 2014-09-15 2015-01-28 安徽易奇软件科技有限公司 Microelectronically-controlled power supply
US10151465B2 (en) 2016-01-07 2018-12-11 Contemporary Visions, LLC Modular lighting system with a plurality of power bars
US10156349B2 (en) 2016-01-07 2018-12-18 Contemporary Visions, LLC Method and apparatus for hanging lighting fixtures
US10036541B2 (en) 2016-01-07 2018-07-31 Contemporary Visions, LLC Canopy for a modular lighting system
US10288271B2 (en) 2016-01-07 2019-05-14 Contemporary Visions, LLC Canopy for a modular lighting system
US10060609B2 (en) 2016-01-07 2018-08-28 Contemporary Visions, LLC Modular lighting system using hangers and power bars
US10203100B2 (en) 2016-01-07 2019-02-12 Contemporary Visions, LLC Method and apparatus for hanging lighting fixtures
US10018339B2 (en) 2016-01-07 2018-07-10 Robert A. Sonneman Modular lighting system using hangers and power bars
EP3321563A1 (en) * 2016-11-09 2018-05-16 Robert A. Sonneman Light bar for a lighting system
US10174923B2 (en) 2016-11-09 2019-01-08 Contemporary Visions, LLC Hanger for a modular lighting system having a main body with two channels to accommodate two segments of a power bar
US10184645B2 (en) 2016-11-09 2019-01-22 Contemporary Visions, LLC Cylindrical housing for modular lighting system
US10151466B2 (en) 2016-11-09 2018-12-11 Contemporary Visions, LLC Laterally supported lights
US10281126B2 (en) 2016-11-09 2019-05-07 Contemporary Visions, LLC Power bar hanger for modular lighting system
US10041662B2 (en) 2016-11-09 2018-08-07 Robert A. Sonneman Light bar for a lighting system
US10359182B2 (en) 2016-11-09 2019-07-23 Contemporary Visions, LLC Ring power bar hanger for modular lighting fixture
WO2024026831A1 (en) * 2022-08-02 2024-02-08 林伟亮 Automatic exhibition stand for placing light-transmitting treasure

Also Published As

Publication number Publication date
EP1757858A3 (en) 2008-10-29
ITMI20050301U1 (en) 2007-02-27

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