EP0485811B1 - Leuchte - Google Patents

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Publication number
EP0485811B1
EP0485811B1 EP91118584A EP91118584A EP0485811B1 EP 0485811 B1 EP0485811 B1 EP 0485811B1 EP 91118584 A EP91118584 A EP 91118584A EP 91118584 A EP91118584 A EP 91118584A EP 0485811 B1 EP0485811 B1 EP 0485811B1
Authority
EP
European Patent Office
Prior art keywords
lamp housing
housing
outer housing
lamp
connecting link
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.)
Expired - Lifetime
Application number
EP91118584A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0485811A3 (de
EP0485811A2 (de
Inventor
Attila Anton Bruckner
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.)
Ansorg GmbH
Original Assignee
Ansorg GmbH
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 Ansorg GmbH filed Critical Ansorg GmbH
Publication of EP0485811A2 publication Critical patent/EP0485811A2/de
Publication of EP0485811A3 publication Critical patent/EP0485811A3/de
Application granted granted Critical
Publication of EP0485811B1 publication Critical patent/EP0485811B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F21V21/04—Recessed bases
    • 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
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • 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
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/028—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters being retractable, i.e. having two fixed positions, one recessed, e.g. in a wall, floor or ceiling, and one extended when in use
    • 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
    • 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

Definitions

  • the invention relates to a recessed ceiling light fixture with a stationary outer housing, a pivotably arranged lamp housing and a lamp holder, the lamp housing carrying the lamp holder being connected to the outer housing by a link arrangement.
  • the outer housing can be used in a recess in the ceiling.
  • a recessed luminaire with the features described above is known from US-A-3 974 371.
  • the lamp housing is axially adjustable within the outer housing by the handlebar arrangement. Furthermore, sideways compensating movements are possible when the lamp housing is pivoted. Swiveling movement as well as axial movement and sideways movement are not coupled with each other.
  • the lamp housing can be pivoted in any position, regardless of whether the lamp housing is inserted into the outer housing or is pulled out of the outer housing as part of the adjustment facility. It takes considerable skill to pivot the lamp housing so that on the one hand it does not protrude unnecessarily far on the underside of the outer housing and on the other hand the radiation output of the pivoted lamp housing is exposed. The necessary corrective measures are made more difficult by the fact that the handlebar arrangement must take up the weight of the lamp housing and must be sufficiently stiff for this purpose.
  • Recessed luminaires with a stationary outer housing and a pivotably arranged lamp housing are also known in practice, in which the lamp housing has bearing journals on its lower casing section, which are rotatably held at corresponding bearing points of the outer housing.
  • Such an arrangement is also not free from disadvantages. If the pivot pins are arranged in a vertical plane of symmetry running through the central axis of the outer housing, a part of the lamp housing of the same size corresponding to the pivoted-out part of the lamp housing is pivoted into the outer housing during the pivoting movement. The result of this is that the outer housing intersects the light cone, the resulting impairment increasing with an increasing swivel angle. An improvement can be achieved by an asymmetrical arrangement of the trunnions outside the plane of symmetry. With increasing eccentric storage, however, the problem arises that the lamp housing can no longer be held in a rotationally fixed manner by static friction at the bearing points. Finally, it is disadvantageous that a considerable gap must be maintained between the outer housing and the lamp housing.
  • From DE-A-2 455 935 and US-A-4 602 319 headlights for motor vehicles with a lamp housing which can be retracted into the vehicle body are known.
  • the lamp housing is connected to a handlebar arrangement of parallel, equally long handlebars and can be moved vertically while maintaining a parallel orientation.
  • the invention has for its object to provide a recessed ceiling light in which it is ensured without corrective measures to be carried out manually that the radiation output of the lamp housing is exposed in all pivot positions.
  • the handlebar arrangement has at least one handlebar pair made of links and of different lengths, which have a small handlebar distance in the side projection to a lower jacket section of the lamp housing and a large handlebar distance to those facing away from the light exit are connected to the upper edge of the outer housing, the two links with the lamp housing forming a four-bar linkage with only one degree of freedom of movement, the kinematics of which are set up so that the pivoting movement of the lamp housing is positively superimposed on a sideways and downward movement of the lamp housing.
  • - Side projection means the image plane orthogonal to the swivel axes of the handlebars.
  • the quadrilateral joint is an inevitable crank gear with a degree of freedom of movement. It comprises four links which are connected by four articulation points to form a closed swivel chain, one of the links being stationary (DUBBEL, Volume I, 13th edition, pages 856 to 858 ).
  • the lamp housing and the two links form a total of three movable transmission members.
  • the outer housing is the fourth fixed gear link. All gear links are rotatable with each other connected to an inevitable crank gear, the kinematics of which is set up in such a way that the pivoting movement of the lamp housing is superimposed on a sideways and downward movement.
  • the handlebar pair arranged in the manner described consists of a short and a long handlebar.
  • the short handlebar controls the sideways and downward movement and the long handlebar the swivel movement.
  • the pivoting movement results from a rotary movement around the pivot point defined by the short handlebar at the end. Low static friction on the joints is sufficient to hold the lamp housing in any desired swivel position.
  • the handlebar arrangement consists of two handlebar pairs which form congruent quadrilaterals in the side projection and support the lamp housing on both sides of a plane of symmetry running through the central axis of the outer housing.
  • a structurally preferred embodiment provides that the long handlebar is fork-shaped and covers and encloses the lamp housing at a distance.
  • the invention teaches that the outer housing has a cylindrical fastening collar and has a mounting flange held rotatably thereon and that the link arrangement is connected to the mounting flange. This can be achieved in a particularly simple manner in that the fastening flange is held on an annular groove of the fastening collar. It is understood that in all embodiments the lamp housing is tapered towards the top. A particularly small gap distance between the outer housing and the lamp housing can be realized if the lamp housing is designed as a spherical cap, at least in its pivotable section. A preferred embodiment of the invention provides that the lamp housing has a spherical cap-shaped support body and a reflector inserted therein.
  • the lamp holder for. B. for a low-voltage halogen lamp attached. It is also expedient to arrange a stop pin for the lamp housing on the outer housing, against which the lamp housing rests in the pivoted-in basic position.
  • the advantages of the invention can be seen in the fact that the beam output is exposed even when the lamp housing is pivoted and the light cone is not cut by the outer housing.
  • the lamp housing is held in any swivel position due to the handlebar arrangement.
  • the kinematics can easily be set up so that the distance between the outer housing and the lamp housing is small, particularly in the lower mouth region.
  • the recessed luminaire shown in the figures is intended for installation in ceiling or wall surfaces.
  • the basic structure includes an outer housing 1, which can be fixedly inserted into a recess in the ceiling or wall surface, and a lamp housing 2 with a lamp holder 3.
  • the lamp housing 2 is connected to the outer housing 1 by a handlebar arrangement 4 comprising at least two links 5, 6.
  • the handlebars 5, 6 form with the lamp housing 2 an articulated quadrilateral, the kinematics of which is set up so that the pivoting movement of the lamp housing 2 is superimposed on a sideways and downward movement of the lamp housing 2.
  • the pair of links forming a quadrilateral consists of a short link 5 and a long link 6.
  • the two links 5, 6 are with a small in the side projection handlebar distance a to a lower jacket portion of the lamp housing 2 and with a large handlebar distance b to the upper edge of the External housing 1, which extends into the ceiling or wall recess connected.
  • the short link 5 controls the sideways and downward movement of the lamp housing 2.
  • the long link 6 controls the swiveling movement, namely by rotation about the pivot point 7 of the lamp housing 2 defined by the short link 5 7 with vertical and parallel to the central axis 8 of the outer housing 1 parallel alignment of the short handlebar 5 has taken its lower position shown in broken lines, the permissible pivoting angle of the lamp housing 2 has been reached.
  • a swiveling movement beyond this angular position is possible, but this leads to the lamp housing being pivoted into the outer housing in some areas and the light cone being cut by the outer housing.
  • the long handlebar 6 is fork-shaped and covers the lamp housing 2 at a distance.
  • the handlebar arrangement 4 consists of two handlebar pairs 5, 6 and 5 ', 6', which form congruent quadrilaterals in the side projection and support the lamp housing 2 on both sides of a plane of symmetry 9 running through the central axis of the outer housing.
  • the outer housing 1 has a cylindrical fastening collar 10 and a fastening flange 11 held thereon.
  • the link arrangement 4 is connected to the fastening flange 11, which in turn is held on an annular groove 12 of the fastening collar 10.
  • the lamp housing 2 has a spherical cap-shaped support body 13 with an inserted reflector 14 and a lamp holder 3 fastened on the outside, for example for a low-voltage halogen lamp.
  • a stop pin 15 is arranged on the mounting flange 11 of the outer housing 1, on which the lamp housing 2 rests in the pivoted-in position.
  • spreading spring elements 16 are arranged on the fastening collar 10, by means of which the fastening collar 10 can be locked in the associated recess in the ceiling or wall surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP91118584A 1990-11-14 1991-10-31 Leuchte Expired - Lifetime EP0485811B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4036229A DE4036229A1 (de) 1990-11-14 1990-11-14 Leuchte
DE4036229 1990-11-14

Publications (3)

Publication Number Publication Date
EP0485811A2 EP0485811A2 (de) 1992-05-20
EP0485811A3 EP0485811A3 (de) 1992-06-10
EP0485811B1 true EP0485811B1 (de) 1995-05-31

Family

ID=6418232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91118584A Expired - Lifetime EP0485811B1 (de) 1990-11-14 1991-10-31 Leuchte

Country Status (3)

Country Link
US (1) US5145249A (https=)
EP (1) EP0485811B1 (https=)
DE (2) DE4036229A1 (https=)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4114509C2 (de) * 1991-05-03 1997-12-11 Halloform Gmbh & Co Kg Einbauleuchte mit Schwenkgehäuse
US5268824A (en) * 1993-02-22 1993-12-07 Accon, Inc. Manually operated boat light
US5564815A (en) * 1994-06-29 1996-10-15 Lightron Of Cornwall Incorporated Adjustable light fixture
US5609413A (en) * 1996-02-12 1997-03-11 Eclairage Contraste Adjustable light fixture
DE19615639B4 (de) * 1996-04-21 2009-05-07 Acl Lichttechnik Gmbh Einbauleuchte
USD379546S (en) * 1996-04-26 1997-05-27 Lightron Of Cornwall Incorporated Recessed adjustable light fixture
GB2336426A (en) * 1998-04-16 1999-10-20 Ibl Lighting Limited Adjustable lamp
JP3999462B2 (ja) 1998-10-01 2007-10-31 フューチャー ニュー ディベロップメンツ リミティド 蛍光灯の省エネルギー運転のための回路
ATE429798T1 (de) * 1999-09-17 2009-05-15 Brightline L P Verstellbare fluoreszierende beleuchtungsvorrichtung
US6283430B1 (en) 2000-04-28 2001-09-04 Cooper Technologies Company Horizontal socket housing assembly
US6343873B1 (en) 2000-04-28 2002-02-05 Cooper Industries, Inc. Lighting fixture with downlight reflector and wallwash reflector
US6431723B1 (en) 2000-04-28 2002-08-13 Cooper Technologies, Company Recessed lighting fixture
US6802627B2 (en) 2002-12-26 2004-10-12 Jerry F. Fischer Directional luminaire
USD500884S1 (en) * 2003-07-10 2005-01-11 Juno Manufacturing, Inc. Fluorescent lampholder
US20060198134A1 (en) * 2005-03-01 2006-09-07 Fowler Wilton L Jr Fluorescent wall wash luminaire with a sliding mechanism for adjusting lamp position
EP1783422B1 (de) * 2005-11-04 2007-10-03 Flowil International Lighting (HOLDING) B.V. Einbauleuchte für ein Leuchtmittel, insbesondere für ein Halogenleuchtmittel
US20070103913A1 (en) * 2005-11-07 2007-05-10 Su-Ju Lin Lamp
ATE476627T1 (de) * 2008-02-11 2010-08-15 Hartmut S Engel Leuchte
US7967481B2 (en) * 2008-03-17 2011-06-28 Blix Lighting Adjustable recessed light fixture
USD601740S1 (en) 2008-03-17 2009-10-06 Seohyun International Corp. Recessed light fixture
US9310037B2 (en) 2012-02-08 2016-04-12 Brightline, Inc. Motorized lighting fixture with motor and light dimming control
US10344952B2 (en) 2016-05-24 2019-07-09 Georgi Yosifov Georgiev Recessed light-emitting diode lighting fixture
US10605419B2 (en) * 2017-10-23 2020-03-31 Usai, Llc Lighting fixture for sloped ceiling
IT201800003531A1 (it) * 2018-03-14 2019-09-14 Forma Lighting Italia S R L Faretto da incasso motorizzato
US10976036B2 (en) 2019-03-05 2021-04-13 Abl Ip Holding Llc Rotatable linear downlight
USD979826S1 (en) 2020-02-25 2023-02-28 Abl Ip Holding Llc Luminaire

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636979A (en) * 1953-04-28
US3182187A (en) * 1963-01-14 1965-05-04 Silvray Litecraft Corp Lighting fixture for sloping ceilings
US3660651A (en) * 1970-07-29 1972-05-02 Indy Lighting Inc Adjustable light fixture
DE2455935A1 (de) * 1974-11-27 1976-08-12 Audi Nsu Auto Union Ag Schwenkbarer scheinwerfer an einem kraftfahrzeug
US3974371A (en) * 1975-06-09 1976-08-10 Indy Lighting, Inc. Adjustable light fixture
DE2809616C3 (de) * 1978-03-06 1980-10-02 Hoffmeister-Leuchten Gmbh & Co Kg, 5880 Luedenscheid Elektrische Einbauleuchte
US4232361A (en) * 1978-12-07 1980-11-04 Mcgraw-Edison Company Adjustable light fixture
US4602319A (en) * 1983-04-15 1986-07-22 Mazda Motor Corporation Retractable head-light device for automobiles
US4851970A (en) * 1988-06-07 1989-07-25 Bronder David G Swing-away taillight assembly
US4881157A (en) * 1989-04-27 1989-11-14 Usi Lighting, Inc. Adjustable light fixture
US5081566A (en) * 1990-12-13 1992-01-14 Alm Surgical Equipment, Inc. Concealable surgical light

Also Published As

Publication number Publication date
DE4036229C2 (https=) 1993-02-25
US5145249A (en) 1992-09-08
DE4036229A1 (de) 1992-05-21
EP0485811A3 (de) 1992-06-10
EP0485811A2 (de) 1992-05-20
DE59105622D1 (de) 1995-07-06

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