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EP3327333A1 - Lampe et son procédé de fabrication - Google Patents

Lampe et son procédé de fabrication Download PDF

Info

Publication number
EP3327333A1
EP3327333A1 EP17198143.4A EP17198143A EP3327333A1 EP 3327333 A1 EP3327333 A1 EP 3327333A1 EP 17198143 A EP17198143 A EP 17198143A EP 3327333 A1 EP3327333 A1 EP 3327333A1
Authority
EP
European Patent Office
Prior art keywords
lamp
outer casing
lamp body
end portion
lamp according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17198143.4A
Other languages
German (de)
English (en)
Other versions
EP3327333B1 (fr
Inventor
Roberto Botti
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.)
SIMES Societa Italiana Medicinali e Sintetici SpA
Original Assignee
SIMES Societa Italiana Medicinali e Sintetici 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 SIMES Societa Italiana Medicinali e Sintetici SpA filed Critical SIMES Societa Italiana Medicinali e Sintetici SpA
Publication of EP3327333A1 publication Critical patent/EP3327333A1/fr
Application granted granted Critical
Publication of EP3327333B1 publication Critical patent/EP3327333B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
    • 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
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
    • F21S8/036—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade by means of a rigid support, e.g. bracket or arm
    • 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
    • F21S8/043—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures mounted by means of a rigid support, e.g. bracket or arm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape

Definitions

  • the present invention relates to a wall, ceiling or pole lamp, and a manufacturing method thereof.
  • lamps are known, in particular outdoors, made with a die-casting process, for example in aluminium.
  • the die-casting process imposes some constraints on the shapes of the lamp.
  • shrinkages or suction phenomenons in the material may happen in the moulding step which result in aesthetic defects on the outer surface of the lamp body, or the separating lines between the parts of the mould create junction lines on the surface of the lamp body.
  • a constraint on the shape of the lamp body is due to the body mass itself, which naturally should not be excessive given that the lamp should be fixed to the wall.
  • the object of the present invention is to propose a lamp that can be made in series with low costs but that, at the same time, has a shape less susceptible to constraints imposed by the production process thereof with respect to the current lamps.
  • reference numeral 1; 100 globally indicates a wall lamp according to the invention.
  • the idea at the basis of the present invention is to make the lamp in two parts: an inner part which constitutes the actual lamp body (and which in turn can be formed by assembling multiple subcomponents), obtainable with a die-casting process and having a shape dictated by the need of reducing the material used as much as possible, and an outer part which forms the casing for the lamp body, obtainable from a drawn tube and which provides the desired shape to the lamp.
  • the lamp 1; 100 therefore comprises a lamp body 10; 110, at least one lighting source 20, at least one optical element 30 associated to the lighting source 20, and an outer casing 40.
  • the lamp 1; 100 is further provided with a bracket 50; 500 for a wall, ceiling, or a pole or other support anchoring thereof.
  • the lamp body 10; 110 is obtained by a die-casting process.
  • the lamp body 10; 110 is made in a metal material, for example aluminium.
  • the lamp body 10; 110 mainly extends along a body axis X.
  • the body axis X is a vertical axis.
  • the lamp body 10; 110 comprises at least one end portion 12 wherein a source seat 14 is made, where the lighting source 20 is housed.
  • the end portion 12 mainly extends in a perpendicular direction with respect to the body axis X.
  • the end portion 12 forms an end wall 12' substantially planar, perpendicular to the body axis X.
  • the source seat 14 for example of cylindrical or truncated-conical shape, is suitable for receiving a printed circuit electronic board 202 on which one or more LED lighting devices 204 are mounted.
  • the optical element 30 may comprise a lens or reflector 302 optically coupled to the lighting source 20 and configured as a function of the desired shape of the light beam.
  • the optical element 30 further comprises a transparent or semitransparent protection element 304, for example of planar shape, placed to close the source seat 14.
  • the protection element 304 seals the source seat 14 so as to allow the use of the lamp in external environments.
  • the outer casing 40 is a tubular casing fitted onto the lamp body 10; 110.
  • the outer casing 40 is made in a metal material, for example aluminium.
  • the outer casing 40 has an axial extension at least equal to that of the lamp body. Moreover, the outer casing 40 has at least one open axial end 42.
  • the end portion 12 of the lamp body substantially has the same cross section of the outer casing 40 and, when the latter is fitted onto the lamp body 10; 110, the end wall 12' of the end portion 12 is coplanar to the open axial end 42. In other words, the end portion 12 of the lamp body 10 closes the open end 42 of the outer casing 40.
  • only part of the optical element 30 axially projects from the outer casing 40.
  • the outer casing 40 completely covers the lamp body 10; 110.
  • the outer casing 40 therefore gives shape to the lamp 1; 100.
  • only the end portion or portions 12 are configured so as to realize a shape coupling with the inner section of the outer casing, so as to completely close the open end or ends 42 of the outer casing 40.
  • the lamp body 10 comprises a central portion 102; 1002 which extends between two end ports 12.
  • this central portion 102; 1002 is shaped so as to reduce the weight of the lamp body 10 as much as possible.
  • the central portion 102; 1002 essentially carries out the function of connecting element between the two end portions 12.
  • the central portion 102 further carries out a guiding and stiffening function for the outer casing 40 which, as said, is made from a drawn tube and therefore has a thin thickness.
  • the central portion 102; 1002 has a hollow structure adapted to contain the electrical/electronic components used for power and control of each lighting source 20.
  • electrical/electronic components are contained in an electrical box 60 housed in the central portion 102; 1022 of the lamp body.
  • Each source seat 14 has an opening for the passage of the electrical wires that connect the electrical/electronic components to the lighting source 20.
  • the central portion 102; 1002 is delimited by a front wall 102a; 1002a and by two side walls 102b; 1022b.
  • the central portion 102; 1002 shown in plan view has a transverse extension, i.e. an overall dimension smaller than that of the end portions 12.
  • the lamp body 10; 110 and the outer casing 40 are symmetrical with respect to a median transverse plane and have the same axial extension.
  • the lamp body 10; 100 supports two lighting sources 20 positioned on opposite end portions 12 of the lamp body 10.
  • the outer casing 40 is open at both ends 42.
  • the outer casing 40 extends between a rear side 44, intended to be facing the wall on which the lamp is installed, and a front side 46 opposite to the rear side 44.
  • the rear 44 and front 46 sides are joined together by side walls 48.
  • such side walls 48 diverge from each other moving away from the rear side 44.
  • such side walls 48 are inclined walls.
  • such walls could have parallel portions and curved or rectilinear portions that extend in opposite directions before joining together at the front side 46.
  • radial projections 104 extend against which a corresponding front wall of the outer casing 40 leans.
  • a rear portion of the side walls 102b of the central portion 102 may be provided with a raised edge 106 that forms a support surface for corresponding side walls of the outer casing 40.
  • the radial projections 104 and the raised edges 106 therefore act as guiding and stiffening means for the outer casing 40.
  • the lamp body 10 is made in a single die-cast piece.
  • the lamp body 110 is made in two parts, separately obtained by a die-casting process and assembled together.
  • the central portion 1002 is made separately from the end portions 12.
  • the end portions 12 are further provided with a finned surface 122 for dissipating the heat generated by the lighting source 20.
  • the outer casing 40 is attached to the lamp body 10; 110 by means of one or more radial attachment screws 49.
  • the bracket 50; 500 is adapted to be attached to the lamp body 10; 110.
  • the bracket 50; 500 comprises at least one radial end portion 52; 522, preferably two opposite each other, which extends towards a rear opening 53 made in the outer casing and which axially superimposes a respective end portion 12 of the lamp body 10, 110.
  • Each end portion 12 of the lamp body 10 is attached to a respective radial end portion 52; 522 of the bracket, for example by a body attachment screw 54; 540.
  • the body attachment screws 540 join the end portions 12 to the central portion 1022 of the lamp 110 and at the same time also engage the bracket 500.
  • the outer casing 40 is instead obtained from a drawn tube, having the desired section.
  • Each lighting source 20 is positioned in the relative source seat 14 and subsequently the optical element 30 is applied.
  • the electrical/electronic components are inserted in the central portion 102; 1002 of the lamp body 10; 110 and the electrical connection between such components and the lighting sources is carried out.
  • the outer casing 40 is fitted onto the lamp body 10 and attached to the latter, for example by radial screws.
  • bracket 50 is attached to the wall, ceiling or to a support and the electrical wiring of the lamp is carried out, the assembly consisting of the lamp body, lighting sources with relative optical elements and outer casing may be attached to the bracket, for example by body attachment screws.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP17198143.4A 2016-10-27 2017-10-24 Lampe et son procédé de fabrication Not-in-force EP3327333B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT201600007750 2016-10-27

Publications (2)

Publication Number Publication Date
EP3327333A1 true EP3327333A1 (fr) 2018-05-30
EP3327333B1 EP3327333B1 (fr) 2019-10-16

Family

ID=60781447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17198143.4A Not-in-force EP3327333B1 (fr) 2016-10-27 2017-10-24 Lampe et son procédé de fabrication

Country Status (1)

Country Link
EP (1) EP3327333B1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2618311A1 (de) * 1976-04-27 1977-11-10 Erco Leuchten Leuchte, insbesondere strahlerleuchte
WO2012113772A2 (fr) * 2011-02-25 2012-08-30 Osram Ag Système d'éclairage
US20130003362A1 (en) * 2011-07-01 2013-01-03 Posco Led Company Ltd Optical semiconductor based illuminating apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2618311A1 (de) * 1976-04-27 1977-11-10 Erco Leuchten Leuchte, insbesondere strahlerleuchte
WO2012113772A2 (fr) * 2011-02-25 2012-08-30 Osram Ag Système d'éclairage
US20130003362A1 (en) * 2011-07-01 2013-01-03 Posco Led Company Ltd Optical semiconductor based illuminating apparatus

Also Published As

Publication number Publication date
EP3327333B1 (fr) 2019-10-16

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