EP0519571A1 - Appareil d'éclairage à configuration variable avec des éléments mobiles entre eux - Google Patents

Appareil d'éclairage à configuration variable avec des éléments mobiles entre eux Download PDF

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Publication number
EP0519571A1
EP0519571A1 EP92201782A EP92201782A EP0519571A1 EP 0519571 A1 EP0519571 A1 EP 0519571A1 EP 92201782 A EP92201782 A EP 92201782A EP 92201782 A EP92201782 A EP 92201782A EP 0519571 A1 EP0519571 A1 EP 0519571A1
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EP
European Patent Office
Prior art keywords
elements
cross
modular
section
extension
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Withdrawn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
EP92201782A
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German (de)
English (en)
Inventor
Giuseppe Usicco
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0519571A1 publication Critical patent/EP0519571A1/fr
Withdrawn legal-status Critical Current

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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
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/002—Table lamps, e.g. for ambient lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/002—Table lamps, e.g. for ambient lighting
    • F21S6/003—Table lamps, e.g. for ambient lighting for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
    • 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
    • F21V21/26—Pivoted arms
    • F21V21/28—Pivoted arms adjustable in more than one plane

Definitions

  • This invention relates to a variable-configuration lighting apparatus with mutually movable elements.
  • lamps are already known consisting of elements connected together articulatedly so that the arrangement and orientation of the lighting element can be varied.
  • the elements are mostly conceived to provide a particular aesthetic effect to the system in its various obtainable configurations.
  • a common drawback or limitation of known structures is that once constructed they can no longer be modified, ie it is difficult for the user to vary them at will for different lighting functions, by adding or removing component parts and adapting the system aesthetically to different requirements.
  • the first object of the present invention is to obviate these drawbacks and limitations of known apparatus by providing a lighting apparatus having mutually movable elements, in particular modular elements, which is constructionally simple and which besides allowing various operating configurations to be achieved very easily, can be modified without difficulty even after its construction.
  • a further object of the present invention is to achieve mobility of the constituent parts or elements of the apparatus in a particularly economical and simple but functional manner, using means not visible from the outside.
  • a further object of the invention is to provide an apparatus of the aforesaid type which is also satisfactory from the aesthetic aspect.
  • variable-configuration lighting apparatus with mutually movable elements, comprising at least two elements with which lighting means are associated, characterised in that said at least two elements are tubular modular elements of curvilinear extension having equal end cross-sections, the ends of each element lying respectively in planes forming an acute angle between them, adjacent elements being rotatably connected together at their end with the ability to be rotated relative to each other about the central axis of the end cross-section.
  • the modular elements are of arcuate extension, wherein the angle between the planes of the end cross-sections can be the same for all the elements or elements can have different contained angles.
  • the angle between the planes of the end cross-sections can be the same for all the elements or elements can have different contained angles.
  • a variable-configuration lighting apparatus for example a lamp for interior or exterior use, is composed of at least two tubular modular elements 1 and 2, with which lighting means are associated as described hereinafter.
  • the modular elements 1 and 2 are of curved and preferably arcuate extension, with equal end cross-sections 1a and 2a.
  • the end cross-sections of each element 1 and 2 lie respectively in planes which form an acute contained angle ⁇ .
  • the elements 1 and 2 are placed in contact at their ends and are connected together rotatably, by means described hereinafter, such that the elements 1 and 2 can rotate relative to each other about the central axis of the end cross-section.
  • each modular element 1 and 2 extends as an arc of a circle having its centre on the line 4 on which the planes of the end cross-sections 1a or 2a of the respective element 1 or 2 meet, and a radius which is equal for all the modular elements. In this manner, when several elements 1 and/or 2 are connected together a continuous arcuate shape is achieved if the relative axial lines 3 lie in the same plane.
  • the elements 1 and 2 are shown as having different lengths, the element 1 having a mean length (measured along the axial line 3) less than the transverse dimension, and the element 2 having a mean length which is a multiple of the element 1. It is therefore apparent that the elements 1 and 2 could also be identical. In addition they can be combined with further equal or non-equal elements.
  • the modular elements 1 and 2 are preferably of circular cross-section as shown. They could however be of other than circular cross-section.
  • the cross-section is preferably constant along the entire extension of the elements.
  • the angle ⁇ is 33°45' for the element 1 and 67°30' for the element 2, but these angles could be different.
  • the two elements 1 and 2 are connected together rotatably at one end and preferably connected to other elements, again rotatably about the axis of the connection cross-section.
  • Figures 7-17 show by way of example some of the numerous positions which two or three of the modular elements 1 and 2 connected together in succession can assume by rotating one and/or the other of the elements relative to the adjacent one. It will be apparent that adding further elements 1 and/or 2 results in a still greater variety of configurations which can be given to a lighting apparatus 5 composed of the tubular modular elements 1 and 2.
  • Different elements can also be associated with the elements 1 and/or 2, to act as support elements for the system.
  • One such support element is indicated by 6 in Figure 18. It is of curvilinear extension with an upper cross-section 6a equal to that of the elements 1 and 2. The cross-section decreases progressively from the upper end to the lower end, where the element 6 is securely connected to a support base 7.
  • the cross-section of Figure 18 can for example be used for lighting gardens or the like.
  • the support element could also be of rectilinear extension, with its upper end cross-section equal to that of the elements 1 and 2.
  • the support element could also consist of the element 1 ( Figures 13-17).
  • connection between the modular elements which restrains them axially but allows them to rotate circumferentially and assume stable positioning in any relative angular position.
  • the connection could be made by geometrically coupling the ends of the modular elements by suitably shaping their edges with relative recesses in one of the elements and connection and guide appendices in the other element.
  • connection means separate from the modular elements.
  • An example of these means is shown in Figures 19, 22 and 23, in which the connection means comprise a connection ring 8 with a plurality of shaped appendices 9 extending from opposite sides of the connection ring 8 and having, on their radially outer end, inclined surfaces 10 acting as a lead-in for their insertion into the modular elements 1 and 2.
  • the appendices 9 are arranged to cooperate with inwardly projecting edges 11 provided on the elements 1 and 2 at their ends, in such a manner as to axially fix the elements 1 and 2 by the engagement between an outer retention surface 12 on the appendices 9 and an inner radial surface 13 on the edges 11, while allowing circumferential sliding between the connection ring 8 and the elements 1 and 2 by rotating the elements relative to each other.
  • the ring 8 is snap-inserted into one of the modular elements, after which the other modular element is snapped onto that ring portion projecting from said element.
  • appendices 9 are uniformly distributed along the entire circumference of the ring 8, however they could be provided along only parts of the ring, for example along three uniformly separate regions.
  • the more outer modular element 2 houses lighting means consisting of at least one lamp 14 positioned between a reflecting parabola 15 and a transparent protection screen 16.
  • the screen is fixed for example as shown in Figure 21, by means of a retention ring 17 locked to the modular element 2.
  • the lamp 14 and parabola 15 are fixed to the inner wall of the element 2.
  • Another of the modular elements 1 or 2 can house an electrical voltage reduction transformer 18 suitably fixed to the inner wall of the element.
  • the electrical connection cables 19 leave from the support element 1. They could also leave from an aperture in one of the modular elements 1, 2. An aperture could also be provided in the element housing the lamp 14 for dissipating the heat produced.
  • Gaskets 20 can be advantageously provided housed in recesses 21 in correspondence with the thickened edges 11 of the elements 1 and/or 2 to act as seals and also to regularize the rotation of the elements 1 and 2 and stabilize the position into which the elements have been moved by the user.
  • the modular elements 1 and 2 can be rotatable one relative to the other through 360° or less than 360°.
  • rotation stop means consisting for example of a peripheral recess 22 provided in one of the modular elements and a tooth 23 provided on the other of the modular elements and slidingly engaging the recess 22, which extends through an arc of less than 360°, as shown in Figure 22.
  • a modification can consist of longitudinal appendices 24 and 25 rigid with the interior of one of the modular elements 1 and 2 respectively, the appendices having a length and arrangement such as to mutually interfere when the modular elements 1 and 2 are in a determined relative angular position.
  • a lighting apparatus is formed which from the technical and functional aspect enables the light beam to be directed in any spatial direction, using a structure of overall dimensions reduced to their essential minimum, and which is particularly simple and economical, particularly with regard to the rotary connections between the modular elements.
  • the apparatus can be adapted to the most varied requirements by applying a greater or lesser number of modular elements, all easily connectable together in a manner invisible from the outside. The user himself can change the sequential arrangement of the elements.
  • the direction of the axis of rotation of the elements is substantially in the longitudinal direction of their end portions, in contrast to what is normally the case in known apparatus, in which the axis of rotation of the elements is generally perpendicular to the longitudinal extension of the articulatedly connected elements.
  • the elements of the apparatus according to the invention rotate substantially about themselves. This makes the connection between the elements particularly compact and simplifies its construction by eliminating pins and the like, which are generally present in known structures. The result is an increased robustness of the apparatus and a longer useful life.
  • Elements of equal cross-section but of rectilinear extension could be positioned between the elements of curvilinear extension, provided that at least two identical or different modular elements of curvilinear extension are included. All the elements, whether of curvilinear or rectilinear extension, can be connected together rotatably as described and illustrated for the elements 1 and 2.
  • the materials used can be chosen from a wide range, depending on specific requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP92201782A 1991-06-21 1992-06-18 Appareil d'éclairage à configuration variable avec des éléments mobiles entre eux Withdrawn EP0519571A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI911711 1991-06-21
ITMI911711A IT1248523B (it) 1991-06-21 1991-06-21 Apparecchio di illuminazione ad elementi reciprocamente mobili e a configurazione variabile.

Publications (1)

Publication Number Publication Date
EP0519571A1 true EP0519571A1 (fr) 1992-12-23

Family

ID=11360172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92201782A Withdrawn EP0519571A1 (fr) 1991-06-21 1992-06-18 Appareil d'éclairage à configuration variable avec des éléments mobiles entre eux

Country Status (2)

Country Link
EP (1) EP0519571A1 (fr)
IT (1) IT1248523B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994025783A1 (fr) * 1993-05-04 1994-11-10 Craemer, Klaus Raccord articule destine aux tuyaux situes sur des toits ou equivalent
WO2005068902A1 (fr) * 2004-01-19 2005-07-28 Claudio Marra Lampe pliable, en forme de spirale et a segments rigides assembles
ES2442970A1 (es) * 2013-12-02 2014-02-14 Cristina IRANZO REIG Luminaria modular re-configurable multifuncional y portátil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1406687A (fr) * 1964-06-08 1965-07-23 Perfectionnements aux appliques d'éclairage, lampes d'ameublement et analogues
US3798438A (en) * 1971-11-26 1974-03-19 P Menichetti Lamp consisting of modular elements
US4305560A (en) * 1979-08-31 1981-12-15 Shigeru Ban Adjustable light support
US4716505A (en) * 1987-02-13 1987-12-29 New Horizons Product Development Company Limited Table lamps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1406687A (fr) * 1964-06-08 1965-07-23 Perfectionnements aux appliques d'éclairage, lampes d'ameublement et analogues
US3798438A (en) * 1971-11-26 1974-03-19 P Menichetti Lamp consisting of modular elements
US4305560A (en) * 1979-08-31 1981-12-15 Shigeru Ban Adjustable light support
US4716505A (en) * 1987-02-13 1987-12-29 New Horizons Product Development Company Limited Table lamps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994025783A1 (fr) * 1993-05-04 1994-11-10 Craemer, Klaus Raccord articule destine aux tuyaux situes sur des toits ou equivalent
WO2005068902A1 (fr) * 2004-01-19 2005-07-28 Claudio Marra Lampe pliable, en forme de spirale et a segments rigides assembles
ES2442970A1 (es) * 2013-12-02 2014-02-14 Cristina IRANZO REIG Luminaria modular re-configurable multifuncional y portátil

Also Published As

Publication number Publication date
ITMI911711A1 (it) 1992-12-21
ITMI911711A0 (it) 1991-06-21
IT1248523B (it) 1995-01-19

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