EP0939272A2 - Dispositif à effets lumineux pour discothèques - Google Patents

Dispositif à effets lumineux pour discothèques Download PDF

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Publication number
EP0939272A2
EP0939272A2 EP98830753A EP98830753A EP0939272A2 EP 0939272 A2 EP0939272 A2 EP 0939272A2 EP 98830753 A EP98830753 A EP 98830753A EP 98830753 A EP98830753 A EP 98830753A EP 0939272 A2 EP0939272 A2 EP 0939272A2
Authority
EP
European Patent Office
Prior art keywords
axis
crown wheel
ring
mirror
designed
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Withdrawn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
EP98830753A
Other languages
German (de)
English (en)
Other versions
EP0939272A3 (fr
Inventor
Mauro Persoi
Raffaela Vincelli
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.)
Fal Srl
Original Assignee
Fal Srl
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 Fal Srl filed Critical Fal Srl
Publication of EP0939272A2 publication Critical patent/EP0939272A2/fr
Publication of EP0939272A3 publication Critical patent/EP0939272A3/fr
Withdrawn legal-status Critical Current

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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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • 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
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios

Definitions

  • the present invention relates to a device for creating lighting effects in discotheques.
  • Amusement and entertainment facilities are constantly looking for special effects in order to attract a larger clientele.
  • a device designed to produce flashes of light which are reflected by a mirror rotating about two axes of rotation which are separate from and perpendicular to one another is known; in this device, rotation of the mirror about its diametral axis is produced by an electric motor keyed onto the said axis, while the other rotation is obtained by a second motor designed to cause rotation of the base supporting the mirror itself:
  • this configuration involves the necessity of supplying electric current to the first of the two motors mentioned by means of a rotating commutator and this results in a few significant drawbacks such as wear, with the consequent need for frequent maintenance, and a notable waste of electric energy.
  • Another drawback of the device of the known type is the impossibility of independent adjustment of the speed of rotation of the two electric motors.
  • the object of the device according to the present invention is that of eliminating the presence of rotating commutators for operation of the electric motor assigned to perform rotation of the mirror about the diametral axis thereof.
  • the device for creating lighting effects in discotheques characterized in that it comprises:
  • 26 denotes a mirror rotating about a first diametral axis A-A.
  • 1 denotes a fixing plate which forms a support for two rotating assemblies 2 and 3 which are centred with respect to a second axis B-B; said plate is provided, in a substantially central position, with a circular opening 4.
  • Both the rotating assemblies 2 and 3 have the function of causing rotation of the mirror about the abovementioned axes A-A and B-B.
  • Two motors 5 and 6 are rigidly fixed on a same side of the said plate; said motors are positioned diametrically opposite one another with respect to the circular opening 4.
  • the first motor 5 transmits the movement to the first rotating assembly 2 and has a pinion gear 7 keyed onto its output shaft.
  • a toothed belt 8 connects the first motor 5 to a crown wheel 9 having toothing along the whole of its external circumference.
  • the said crown wheel is coaxial with respect to the axis B-B corresponding to the central perpendicular axis of the circular opening 4.
  • a ring 10 is rigidly joined to said crown wheel, coaxially therewith; the diameter of the central hole of said ring substantially coincides with the internal diameter of the crown wheel 9.
  • Centring of the ring 10 and crown wheel 9 is ensured by a plurality of pins penetrating into suitable holes 11 formed, along an identical diameter, both through the said ring and through the said crown wheel.
  • the section of the external circumference of the ring 10 has a circumferential relief 12 designed to correspond to the circumferential race of a first group of three idle rollers 13 which are arranged at 120 degrees with respect to one another about the axis B-B.
  • the stems of the three idle rollers 13 are rigidly joined to a counter-plate 14 which is in turn rigidly joined to the fixing plate 1.
  • a substantially cylindrical, internally hollow sleeve 15 is rigidly joined coaxially to the ring 10 on the side thereof directed towards the counter-plate 14; the connection between said sleeve and the said ring 10 and associated crown wheel 9 is ensured by the already mentioned pins which, after passing through the thickness of said elements, are screwed into suitable threaded holes 16 formed at the base of said sleeve.
  • a second group of three idle rollers 17 which are identical to the said three idle rollers 13 are rigidly joined to the fixing plate 1 on the surface thereof directed towards the counter-plate 14.
  • the circumferential relief 12 of a ring 18 which is substantially identical to the ring 10 engages into the circumferential race of the said idle rollers, said ring 18 forming part of the second rotating assembly 3.
  • a crown wheel 19 which is substantially identical to the crown wheel 9 is fixed to the bottom part of the ring 18; the external surface of said crown wheel is provided with a toothing meshing with a toothed belt 20 which is wound around a pinion 21 keyed onto the shaft of the second motor 6.
  • Said second motor transmits the movement to the second rotating assembly 3.
  • a circular rim 22 is rigidly joined to the end of a plurality of spacing elements 23 opposite to the end for fixing said elements to the ring 18; said spacing elements also form the connection between said ring and associated crown wheel 19.
  • the circular opening 4 of the fixing plate 1 has a diameter which is slightly greater than that of the circumferential dimensions of the plurality of spacing elements 23.
  • the circular rim 22 has two external lugs 24 which are positioned diametrically opposite one another.
  • An upright 25 is rigidly joined to each of the said lugs.
  • the diametral axis A-A of the mirror 26 which is reflective on both its surfaces is positioned so as to pass near the top end of both the said uprights.
  • One of the two uprights 25, at the point where the axis of rotation A-A passes through, has a support 27 for one of the two gears forming a bevel gear pair 28 with shafts meeting at a right angle.
  • the second of the gears of said bevel gear pair is keyed to the top end of a rotating shaft 29, the said shaft being held in position by a frame 30 rigidly joined to one of the two uprights 25.
  • a pinion gear 31 is keyed onto the bottom end of the rotating shaft 29 and has, meshing with it, a toothed belt 32 which is wound around the external toothed profile of a crown wheel 33 keyed onto the external diameter of the end of the sleeve 15 opposite to that for fixing the latter to the ring 10.
  • Starting rotation of the first electric motor 5 causes the motor to transmit the rotary movement to the crown wheel 9 of the first rotating assembly 2 by means of the toothed belt 8.
  • the axis of rotation of the said crown wheel coincides with the axis B-B.
  • the rotary movement of the first motor 5 is then transmitted to the ring 10 which is rigidly joined to and centred with the crown wheel 9 by means of the first group of idle rollers 13 and is also transmitted to the sleeve 15 rigidly joined to the said ring.
  • the crown wheel 19, forming part of the second motor assembly 3 receives rotary movement from the second motor 6 by means of the toothed belt 20 meshing with the toothed pinion 21 keyed onto the output shaft of the said second motor.
  • the toothed wheel 19 transmits the rotary movement to the ring 18, to which it is rigidly joined and with which it is centred by means of the second group of idle rollers 17, as well as to the plurality of spacing elements 23 which support the circular rim 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Holo Graphy (AREA)
EP98830753A 1998-02-25 1998-12-14 Dispositif à effets lumineux pour discothèques Withdrawn EP0939272A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPR980012 1998-02-25
ITPR980012 IT1306036B1 (it) 1998-02-25 1998-02-25 Dispositivo per la creazione di effetti luminosi in discoteche

Publications (2)

Publication Number Publication Date
EP0939272A2 true EP0939272A2 (fr) 1999-09-01
EP0939272A3 EP0939272A3 (fr) 2001-03-28

Family

ID=11396169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98830753A Withdrawn EP0939272A3 (fr) 1998-02-25 1998-12-14 Dispositif à effets lumineux pour discothèques

Country Status (2)

Country Link
EP (1) EP0939272A3 (fr)
IT (1) IT1306036B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2837909A1 (fr) * 2002-01-22 2003-10-03 Ming Cheng Chang Mecanisme reflechissant pour lampe de scene commandee par ordinateur
DE102004063496B4 (de) * 2004-12-30 2007-10-11 Chang, Ming-Cheng, Yungkang Reflexionsvorrichtung für eine Bühnenlampe
EP2986907A4 (fr) * 2013-04-15 2016-10-26 Univ Emory Dispositifs et systèmes de plateformes rotatives

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1987438A (en) * 1933-06-23 1935-01-08 Gen Electric Searchlight elevating mechanism
GB1324989A (en) * 1970-08-25 1973-07-25 Barry John Martin Decorative device
US5590955A (en) * 1993-08-27 1997-01-07 Vari-Lite, Inc. Variable light modifier

Non-Patent Citations (1)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2837909A1 (fr) * 2002-01-22 2003-10-03 Ming Cheng Chang Mecanisme reflechissant pour lampe de scene commandee par ordinateur
DE10210029C1 (de) * 2002-01-22 2003-11-06 Ming-Cheng Chang Reflexionsvorrichtung für eine Bühnenbeleuchtungsleuchte
DE102004063496B4 (de) * 2004-12-30 2007-10-11 Chang, Ming-Cheng, Yungkang Reflexionsvorrichtung für eine Bühnenlampe
EP2986907A4 (fr) * 2013-04-15 2016-10-26 Univ Emory Dispositifs et systèmes de plateformes rotatives

Also Published As

Publication number Publication date
IT1306036B1 (it) 2001-05-29
EP0939272A3 (fr) 2001-03-28
ITPR980012A1 (it) 1999-08-25

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