EP0682209A2 - Luminaire avec des dispositifs de suspension permettant le décrochage de l'écran - Google Patents

Luminaire avec des dispositifs de suspension permettant le décrochage de l'écran Download PDF

Info

Publication number
EP0682209A2
EP0682209A2 EP95104623A EP95104623A EP0682209A2 EP 0682209 A2 EP0682209 A2 EP 0682209A2 EP 95104623 A EP95104623 A EP 95104623A EP 95104623 A EP95104623 A EP 95104623A EP 0682209 A2 EP0682209 A2 EP 0682209A2
Authority
EP
European Patent Office
Prior art keywords
carrier
housing
luminaire
anchoring part
suspending
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
EP95104623A
Other languages
German (de)
English (en)
Other versions
EP0682209B1 (fr
EP0682209A3 (fr
Inventor
Stephan Ranke
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.)
Thorn Licht GmbH
Original Assignee
Thorn Licht 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
Priority claimed from DE9407941U external-priority patent/DE9407941U1/de
Application filed by Thorn Licht GmbH filed Critical Thorn Licht GmbH
Publication of EP0682209A2 publication Critical patent/EP0682209A2/fr
Publication of EP0682209A3 publication Critical patent/EP0682209A3/fr
Application granted granted Critical
Publication of EP0682209B1 publication Critical patent/EP0682209B1/fr
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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints

Definitions

  • the present invention relates to a lamp with suspension devices for hanging and folding a grid used in the lamp housing, the suspension devices each comprising an anchoring part connected to the lamp housing, which has an opening through which a carrier connected to a holding element can be pushed, and one Support unit and a leaf spring with a free end and an end connected to the anchoring part, which extends essentially in the direction of insertion of the carrier and springs transversely to the direction of insertion of the carrier, the carrier, which is between an upper position in which it is connected to the anchoring part by means of a latching lug is locked, and a lower position, in which it rests with a retaining projection on the support unit of the anchoring part, can be moved up and down in the anchoring part, and which can be detached from the anchoring part for removing the grid, and in each case with the L connected ngsreflektor the luminaire louvre support member with bearing holes into which the lower ends of the carrier are used to pivot about a horizontal axis.
  • a lamp with a suspension device of the aforementioned type is known.
  • the holding element is fixedly connected at its lower end to the longitudinal reflector of the luminaire grid and overlapped at its upper end by a bent region of the longitudinal reflector. Due to this attachment at both ends, the longitudinal reflector is subjected to a tension that can lead to a bending of the grid.
  • the free end of the leaf spring is located on the underside of the anchoring part in the known lamp with suspension device. Based on these It is possible to attach the carrier not only past the leaf spring on the housing side into the opening provided for it, but also behind the leaf spring on the wall side. This incorrect insertion can destroy both the anchoring part and the grid.
  • This mounting method of the leaf spring also has the disadvantage that a pressure must be exerted on the leaf spring in the direction of the housing side wall during the insertion of the carrier in order to be able to push the retaining projection past the support unit.
  • the problem underlying the present invention is to create a luminaire with a suspension device for the grid of the aforementioned type, which does not have the disadvantages mentioned.
  • the upper end of the leaf spring is its free end.
  • This method of fastening the leaf spring has the advantage that the carrier cannot be pushed behind the leaf spring and thus the risk of destruction of the anchoring part and grid is reduced during the insertion of the carrier. Furthermore, no additional pressure has to be exerted on the leaf spring in order to be able to push the holding projection past the support unit, since the carrier itself pushes the leaf spring to the side when it is inserted.
  • the upper part of the carrier is angled slightly in the direction of the interior of the housing, the latching lug and the retaining projection also being located on the side of the carrier which faces the interior of the housing.
  • the holding element has two mutually parallel, flat sections connected to one another at its upper edges, with the aid of which it can be pushed onto the lower end of the longitudinal reflector in such a way that it grips around it like a clamp. Since there is no further connection between the longitudinal reflector and the holding element, the longitudinal reflector is also not subjected to any tension, as a result of which deformations of the grid are avoided.
  • FIG. 1 shows a cross section through a luminaire according to an embodiment of the present invention with a luminaire housing 1 with a rectangular cross section with a housing ceiling and two side walls, in which a fluorescent lamp 2 extending in the longitudinal direction is arranged.
  • the lamp has a lamp grid with transverse slats 3 and longitudinal reflectors 4, the latter being bent in a hook shape at their upper end. It is a well-known luminaire grid.
  • the longitudinal reflectors 4 are each bent twice at approximately a right angle, first outwards and then upwards, so that the longitudinal reflectors 4 have a type of channel.
  • the suspension device comprises a carrier 5 with a holding clip 6, which can be attached from above to the upwardly bent end piece 7 of the longitudinal reflectors 4.
  • the carrier 5 with the holding clip 6 is shown in FIGS. 5 a and b and will be described in more detail below.
  • the suspension device also includes the anchoring parts 8, which are inserted into recesses 9 of the lamp housing 1 (see Fig. 2).
  • the anchoring part 8 is closer to FIGS. 4 a to c and is described in detail below.
  • the carrier 5 carrying the luminaire grid are connected to the anchoring part 8, the carrier 5 being able to be pulled down from an upper position, which is shown in FIG. 1, for hanging the grid into the lower position according to FIG. 3, and thereby on the anchoring parts 8 are performed.
  • the carrier 5 is made in one piece from sheet metal by bending and punching. 2, the carrier 5 assumes a position in which its upper long leg 10 is vertical and runs parallel to the side wall of the lamp housing 1, the upper end of the upper long leg 10 being approximately in the corner region of the Luminaire housing 1 is located just below the housing ceiling and at approximately the same height as the upper end of the longitudinal reflector 4.
  • the carrier has a locking lug 11 and a retaining projection 12 on its upper long leg 10.
  • the holding projection 12 is a flat tab formed by stamping and bending, and the latching lug 12 is produced by punching two mutually parallel slots and bending the web thus formed into an approximately V-shaped shape at an acute angle.
  • this lower leg 15 assumes approximately the same angular position with respect to the upper long leg 10 as the short section 13.
  • the perspective view in FIG. 5b shows that the lower leg 15 is on both sides protrudes beyond the relatively narrow strip-shaped support 5 and has an approximately rectangular shape. At its lateral ends two aligned pins 16 are formed.
  • the holding clip 6 is also made in one piece from sheet metal by punching and bending. It comprises two approximately rectangular, closely adjacent flat sections 17 and 18, which are connected to one another on the outer sides of their upper edges by two strip-shaped tabs 19 bent over in a hairpin shape (FIG. 5b). On the section 18 laterally and at right angles to this, bearing legs 20 are formed with bearing holes 21 into which the two pins 16 of the carrier 5 can be inserted.
  • the retaining clip 6 can be pushed onto the upwardly bent end piece 7 of the channel, which is formed by the longitudinal reflectors 4, in such a way that one of the rectangular sections 17 and 18 abuts on each side of this end piece 7.
  • the section 18 has two obliquely angled tongues 22 laterally on its underside, which serve as a guide during the attachment of the holding clip 6 to the end piece 7.
  • the tongues 22 increase the clamping effect of the holding clip 6 because they are bent outwards at an acute angle from the surface 18.
  • 5c to 5e show another embodiment of the present invention, in which a continuous tongue 22 is attached to the section 18 instead of two separate tongues 22.
  • the carrier 5 When attaching and suspending the grid, the carrier 5 interacts with the anchoring part 8.
  • the latter is shown in Fig. 4 a to c per se.
  • This anchoring part 8 is a stamped and bent part made of sheet metal and consists in the lower part of a vertical leg 23, which is bent at the end at the top by approximately 180 °, so that two downwardly extending tabs 24 are formed, which as shown in Fig. 2 recognizes, reach through a recess 9 in the side part of the housing 1. These downwardly bent tabs 24 are bent inward in the lower region to form hooks which claw into the sheet metal of the housing 1 of the lamp.
  • the vertical leg 23 and the bent tabs 24 are resiliently connected to one another so that the bent tabs 24 can be pushed with the hooks over the sheet metal of the side parts of the housing 1 in order to fasten the anchoring part 8 to the sheet metal of the housing 1.
  • the vertical leg 23 is connected by two vertically upwardly extending strips 25 with a somewhat narrower tab 26 which projects into the housing 1 at an angle of approximately 60 °.
  • An anchor-shaped holding part 27 is fastened to the lower edge of the tab 26, which also extends through the recess 9 of the housing 1 and rests with two outer hooks from the outside on the sheet metal of the housing 1.
  • a tongue-shaped leaf spring 30 projects upwards, the free end region of which is angled at an angle.
  • the latching lug 11 In the upper position of the carrier 5 (see FIG. 1), the latching lug 11 is located above the tab 26 protruding at an angle into the housing 1.
  • the leaf spring 30 presses the upper long leg 10 of the carrier 5 against the tab 26 of the anchoring part 8.
  • the carrier 5 can be pulled down more easily until the retaining projection 12 strikes the tab 26, so that further pulling down of the carrier 5 is blocked.
  • the position shown in FIG. 3 is then reached. Now the right support 5 can be detached from the right anchoring part 8 by lifting the support 5 a bit, as indicated by the arrow 1 in FIG.
  • the carrier 31 (FIG. 7) which is similar in function and structure to the carrier 5 is likewise produced in one piece from sheet metal by bending and punching.
  • the carrier 31 has a lower leg 32, which corresponds to the lower leg 15 and is angled obliquely upward (see FIG. 7a) and, like this, as can be seen from the top view in FIG. 7b, is approximately rectangular in shape and has two at its lateral ends Pin 33 is provided.
  • a vertical section 34 adjoins the lower leg 32 (see FIG.
  • Section 14 of the carrier 5 which is longer than the vertical section Section 14 of the carrier 5 is designed and has an oblique, corresponding to the locking lug 12, locking lug 35, the locking lug 35 protruding laterally downward from the plane of the vertical section 34.
  • the upper long leg 36 of the carrier 31 adjoining the vertical section 34 is inclined at an angle of approximately 10 ° with respect to the lower leg 32 (downward in FIG. 7a) with respect to the vertical section.
  • a holding projection 37 corresponding to the holding projection 12 is bent out.
  • 7c shows the carrier 31 in connection with the embodiment of the holding clip 6 shown in FIGS. 5c to 5e.
  • This anchoring part 38 is a stamped and bent part made of sheet metal and consists in the lower part of a vertical leg 39, which is bent at the upper end by approximately 180 °, so that two downwardly extending tabs 40 are formed, which correspond to tabs 24, can reach through a recess 9 in the side part of the housing 1.
  • the leg 39 and the bent tabs 40 are also connected to one another in the anchoring part 38, so that the bent tabs 40 can be pushed with the hooks over the sheet metal of the side parts of the housing 1, around the anchoring part 38 on the sheet metal to fix the housing 1.
  • the vertical leg 39 is followed by two narrower vertically upwardly extending strips 41, between which there is a leaf spring 42, the free end area of which is angled to an acute angle and which is connected to the vertical leg 39 only at the lower end.
  • the strips 41 are bent at right angles at the top to the right in FIG. 6a and again from this horizontal leg at an angle of approximately 100 ° almost bent vertically downwards.
  • a short contact edge 44 is punched between the two vertical strips 41, which protrudes upwards at an angle of approximately 15 ° to the vertical. From Fig. 6c it can be seen that the contact edge 44 stamped on the approximately vertical leg 43 corresponds exactly in its lateral extent to the leaf spring 42. 6c that the approximately vertical leg 43 below the contact edge 44 forms a closed surface which is not divided into strips.
  • the interaction of the carrier 31 and the anchoring part 38 corresponds to that of the carrier 5 with the anchoring part 8.
  • the latching lug 35 is located above the contact edge 44.
  • the angled part lies here End region of the leaf spring 42 on the vertical section 34 of the carrier 31 so that it is pressed against the contact edge 44 of the anchoring part 38.
  • the latch 35 of the carrier 31 can now be pulled down past the contact edge 44 of the anchoring part 38 against the spring tension of the leaf spring 42.
  • the carrier 31 can be pulled down more easily until the retaining projection 37 strikes the contact edge 44, so that further pulling down of the carrier 31 is blocked.
  • the right support 31 can be detached from the right anchoring part 38 by lifting the support 5 a bit, as indicated by arrow 1 in FIG. 9b, and then also, as indicated by the arrow 2, is pivoted with its upper long leg 36 in the direction of the housing wall.
  • the carrier 31 is thereby released from the anchoring part 38, since the holding projection 37 is lifted over the contact edge 44 of the anchoring part 38.
  • the grid can be suspended, the left support 31 being stuck on the left anchoring part 38 and the longitudinal reflectors 4 pivoting about the horizontal axis given by the pins 33 of the left support 31 and the bearing holes 21 of the holding clip 6.
  • the end position of the grid pivoted through 90 ° is shown in FIG. 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Baking, Grill, Roasting (AREA)
  • Helmets And Other Head Coverings (AREA)
EP95104623A 1994-05-13 1995-03-29 Luminaire avec des dispositifs de suspension permettant le décrochage de l'écran Expired - Lifetime EP0682209B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9407941U DE9407941U1 (de) 1993-07-09 1994-05-13 Leuchte mit Abhängevorrichtungen zum Abhängen eines Rasters
DE9407941U 1994-05-13

Publications (3)

Publication Number Publication Date
EP0682209A2 true EP0682209A2 (fr) 1995-11-15
EP0682209A3 EP0682209A3 (fr) 1996-04-03
EP0682209B1 EP0682209B1 (fr) 2000-03-01

Family

ID=6908616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95104623A Expired - Lifetime EP0682209B1 (fr) 1994-05-13 1995-03-29 Luminaire avec des dispositifs de suspension permettant le décrochage de l'écran

Country Status (3)

Country Link
EP (1) EP0682209B1 (fr)
AT (1) ATE190125T1 (fr)
PL (1) PL176459B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7490953B2 (en) 2004-04-16 2009-02-17 Koninklijke Philips Electronics, N.V. Lamps and reflector arrangement for color mixing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2341818A1 (fr) * 1976-02-21 1977-09-16 Trilux Lenze Gmbh & Co Kg Dispositif d'eclairage
EP0116909B1 (fr) * 1983-02-16 1986-12-10 Siemens Aktiengesellschaft Fixation de couvercle rabattable pour armature lumineuse

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2341818A1 (fr) * 1976-02-21 1977-09-16 Trilux Lenze Gmbh & Co Kg Dispositif d'eclairage
EP0116909B1 (fr) * 1983-02-16 1986-12-10 Siemens Aktiengesellschaft Fixation de couvercle rabattable pour armature lumineuse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7490953B2 (en) 2004-04-16 2009-02-17 Koninklijke Philips Electronics, N.V. Lamps and reflector arrangement for color mixing

Also Published As

Publication number Publication date
EP0682209B1 (fr) 2000-03-01
ATE190125T1 (de) 2000-03-15
PL308255A1 (en) 1995-11-27
EP0682209A3 (fr) 1996-04-03
PL176459B1 (pl) 1999-05-31

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