EP0896187B1 - Ensemble projecteur avec écran et dispositif de commande de l'écran - Google Patents

Ensemble projecteur avec écran et dispositif de commande de l'écran Download PDF

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Publication number
EP0896187B1
EP0896187B1 EP97113732A EP97113732A EP0896187B1 EP 0896187 B1 EP0896187 B1 EP 0896187B1 EP 97113732 A EP97113732 A EP 97113732A EP 97113732 A EP97113732 A EP 97113732A EP 0896187 B1 EP0896187 B1 EP 0896187B1
Authority
EP
European Patent Office
Prior art keywords
headlight
accordance
reflector
opening
housing
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
EP97113732A
Other languages
German (de)
English (en)
Other versions
EP0896187A1 (fr
Inventor
Berthold Döring
Werner Jablotschkin
Franz Kathmann
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Priority to DE59712677T priority Critical patent/DE59712677D1/de
Priority to EP97113732A priority patent/EP0896187B1/fr
Publication of EP0896187A1 publication Critical patent/EP0896187A1/fr
Application granted granted Critical
Publication of EP0896187B1 publication Critical patent/EP0896187B1/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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/686—Blades, i.e. screens moving in a vertical plane

Definitions

  • the invention relates to a headlight unit with a switching device according to the preamble of patent claim 1.
  • the vehicle headlamp has a unit consisting of reflector, diaphragm arrangement and lens, which is inserted into a housing which can be opened from the rear. Between the reflector and the lens which consists of a fixed aperture and an adjustable or pivotable aperture diaphragm assembly is used, which is adjustable by an adjusting device in two end positions.
  • the adjustable aperture is pivoted by a two-armed actuating lever which is pivotally mounted on the reflector edge.
  • the free end of the one arm of the two-armed actuating lever is provided with a slot into which a tongue rigidly connected to the panel projects, and the free end of the other arm is bent twice in such a way that the free end portion of the arm, that of the incandescent lamp, receiving socket is adjacent and through an opening which is formed on the back as an access opening to the reflector, can be operated.
  • a disadvantage of the known and basically proven switching device is that it is relatively complex and expensive, and that it can not be used for reflectors or low-beam headlamps with gas discharge lamps, for example xenon lamps, since the components of the xenon dipped-beam headlight are not Ignition of the arc can be classified by a high voltage pulse as security parts in which access by the customer is undesirable and therefore structurally secured, so that pivoting of the pivotable aperture on the access opening to the low beam headlight is no longer given.
  • a switching device for a diaphragm arrangement of a headlamp which has an adjustable aperture and a fixed aperture.
  • the adjustable aperture is pivotally mounted on the stationary panel and can be locked in two end positions.
  • an operating lever provided, which is arranged within a housing of the headlamp.
  • a switching device for a diaphragm arrangement of a headlamp which has a fixed aperture and a pivotable aperture.
  • the pivotable diaphragm is operated by means of an actuating element which is arranged within the housing of the headlight.
  • EP 0 381 851 A1 discloses a switching device for a diaphragm arrangement, which is disposed in front of the reflector of a vehicle headlight and has a stationary diaphragm and a pivotable diaphragm.
  • the pivotable aperture is pivotable via a positioner which can be operated through an upper opening of a housing wall of the vehicle headlamp, with a free end of the actuator designed as an angle lever protrudes through this opening of the housing wall.
  • a disadvantage of the known switching device is that an opening must be provided in the region of a housing wall of the vehicle headlight associated with the switching device.
  • Object of the present invention is therefore to improve a switching device for a diaphragm assembly of a headlamp unit containing at least two vehicle headlights so that they can be easily and inexpensively manufactured and from the rear housing, but not over the protected area of the reflector operable.
  • the actuator is connected at one end fixed to the pivotable aperture, can be dispensed with a special pivot axis for the actuator and an additional tongue into which the actuator with its free end.
  • the opening is formed on the rear wall of the housing as an access opening for a high beam headlamp.
  • the high beam headlamp has a reflector, which is upstream of the reflector of the low beam headlamp in the vehicle longitudinal direction.
  • the actuator with its front side facing away from the front panel of a front leading edge of a holder and with its rear facing the rear panel of a rear leading edge of the holder adjacent.
  • the actuator is thus held in a guide slot, which is formed by two leading edges against overpressure.
  • the actuator with its the holder-facing underside in a lower position against a lower stop edge of the holder can be stopped.
  • a precisely defined stop edge thus prevents an overshift.
  • the pivotable diaphragm at its end facing away from its pivot axis has a stop which can be abutted against an upper edge of the stationary diaphragm in the vertical direction.
  • a dipped-beam headlamp (1) together with a neighboring high-beam headlamp (2) forms a headlamp unit (3).
  • the dipped beam headlamp (1) consists essentially of a reflector (4) with xenon lamp (5), aperture arrangement (6) with switching device (7) and lens (8).
  • the low-beam headlight (1) and the high-beam headlight (2) are arranged in a housing (9), the housing rear wall (10) the reflector (4) of the low beam headlamp (1) is upstream and a protected against access to the customer access opening (11) and in the area a reflector (12) of the high beam headlamp (2) has an upstream, accessible to customers access opening (13) to the high beam headlamp (2) or to the reflector (12).
  • the diaphragm arrangement (6) consists essentially of a stationary diaphragm (14) and a pivotable diaphragm (15).
  • the pivotable diaphragm (15) is pivotally connected via a pivot axis (16) with the fixed aperture (14).
  • the switching device (7) is essentially formed by a controller (17).
  • the actuator (17) is connected at one end (18) fixed to the pivotable diaphragm (15), for example by a TOX-joining process.
  • the actuator (17) is arranged in its longitudinal direction substantially transversely to a reflector axis (19) of the reflector (4) and thus extends in or parallel to the plane (20) of the pivotable diaphragm (15).
  • the actuator (17) protrudes with its free end (21) beyond the reflector (4) so far that it is in the region of an opening (22), which is formed by the access opening (13) of the high beam headlamp (2), protrudes and after removal of a cap (23) from the rear wall (10) forth via the access opening (13) is operable.
  • the stationary diaphragm (14) of the left low-beam headlamp (1) has a holder (26) in its lower left-hand region.
  • the holder (26) has a free end (27) which is arranged approximately at right angles to the free end (21) of the actuator (17).
  • the free end (27) of the holder (26) has a guide slot (28) in which the free end (21) of the actuator (17) is guided.
  • the pivotable panel (15) facing away from the front side (29) of the actuator (17) is guided by the front side (29) adjacent the front leading edge (30) of the guide slot (28).
  • the pivotable panel (15) facing the rear side (31) of the actuator (17) is guided by the adjacent rear leading edge (32) of the guide slot (28).
  • the lower boundary of the guide slot (28) serves as a lower stop edge (33), against which the underside (34) of the actuator (17) facing it abuts in the lower switching position (35) for symmetrical light.
  • a stop (36) is arranged against an upper vertical aperture edge (37) of the fixed aperture (14) in an upper switching position (38) for asymmetric Light is beatable.
  • the stationary diaphragm (14') has a holder (39) in the lower right-hand region, adjacent to the front side (29) of the actuator (17) leading leading edge (40) forms, which prevents over-pressing of the actuator (17).
  • the holder (39) has a lower stop edge (41) against which the underside (34) of the actuator (17) abuts in a lower switch position (38 ') for asymmetric light.
  • the holder (39) At a distance to the lower stop edge (41), the holder (39) has a parallel upper stop edge (42) against which the actuator (17) with its upper side (43) facing away from the underside (34) in an upper switching position (35 '. ) for symmetrical light strikes.
  • a left low beam headlight (1 ") for left-hand traffic according to FIG. 5 has a holder (39) which corresponds in mirror image to the holder (39) in the lower left region of its stationary diaphragm (14").
  • the pivot axis (16), which connects the stationary diaphragm (14 ") with the pivotable diaphragm (15"), is located in the upper right region of the diaphragm (14 ", 15").
  • a holder (45) which corresponds to the holder (26) in mirror image is located in the lower right-hand area of the stationary diaphragm (14"').
  • the xenon lamp (5) is arranged at a focal point of the ellipsoidal or freeform reflector (4).
  • a second focal point of the reflector (1) is the diaphragm arrangement (6) and the focal point of the downstream lens (8).
  • the contour of the diaphragm arrangement (6) defines the so-called light-dark boundary. In the switch position (38, 38 ') for asymmetrical light, only the contour of the stationary diaphragm (14, 14', 14 ", 14"') comes into play.
  • the cap (23) on the rear wall (10) is removed.
  • the actuator (17) is pivoted on its operating lever (25) and the cap (23) is placed back on the opening (22) of the high beam headlamp (2).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (10)

  1. Unité de projecteur avec un agencement de diaphragme et un dispositif de commande du diaphragme (7) pour l'agencement de diaphragme (6), dans laquelle l'agencement de diaphragme est monté devant le réflecteur (4) d'un projecteur de véhicule (1) et présente un diaphragme stationnaire (14) et un diaphragme pivotant (15, 15', 15", 15"') qui peut pivoter par l'intermédiaire d'un actionneur (17) qui peut être commandé à travers une ouverture (22) d'une paroi de boîtier de l'unité de projecteur (3), dans laquelle l'actionneur (17) est relié par une extrémité (18) de manière solidaire au diaphragme pivotant (15, 15', 15", 15"') et qui fait saillie avec son extrémité libre (21) approximativement transversalement à l'axe de réflecteur (19) au-delà du réflecteur (4) jusqu'a ce que l'extrémité libre (21) fasse saillie dans la région de l'ouverture (22) de la paroi de boîtier, caractérisée en ce que la paroi de boîtier est réalisée en tant que paroi arrière de boîtier et en ce que l'ouverture (22) est agencée avec décalage latéral par rapport au réflecteur (4), en ce que l'ouverture (22) est réalisée sous forme d'ouverture d'accès (13) pour un phare de véhicule (2) voisin et en ce que l'ouverture présente un axe longitudinal (24) qui s'étend approximativement parallèlement à l'axe de réflecteur (19).
  2. Unité de projecteur selon la revendication 1, caractérisée en ce que l'actionneur (17) est voisin, par sa face antérieure (29) détournée du diaphragme pivotant (15, 15', 15", 15 "'), d'une arête de guidage (30, 40) antérieure d'un support (26, 39, 44, 45) qui est relié au diaphragme stationnaire (14, 14', 14", 14"').
  3. Unité de projecteur selon la revendication 2, caractérisée en ce que l'actionneur (17) est voisin, par sa face postérieure (31) tournée vers le diaphragme pivotant (15, 15"'), d'une arête de guidage postérieure (32) du support (26, 45).
  4. Unité de projecteur selon la revendication 2 ou 3, caractérisée en ce que l'actionneur (17), avec sa face inférieure (34) tournée vers le support (26, 39, 44, 45), peut venir en butée contre une arête de butée inférieure (33, 41) du support (26, 39, 44, 45) dans une position de commutation inférieure (35, 38).
  5. Unité de projecteur selon l'une des revendications 2 à 4, caractérisée en ce que l'actionneur (17), avec sa face supérieure (43) détournée de la face inférieure (34), peut venir en butée contre une arête de butée supérieure (42) du support (39, 44) dans une position de commutation supérieure (35', 38).
  6. Unité de projecteur selon l'une des revendications 1 à 5, caractérisée en ce que le diaphragme pivotant (15, 15', 15", 15"') présente sur son extrémité détournée de son axe de pivotement (16) une butée (36) qui peut venir en butée contre une arête de diaphragme (37) supérieure en direction verticale, du diaphragme stationnaire (14, 14', 14", 14"').
  7. Unité de projecteur selon l'une des revendications 1 à 6, caractérisée en ce qu'à son extrémité libre (21), l'actionneur (17) est coudé vers la paroi arrière de boîtier (10).
  8. Unité de projecteur selon l'une des revendications 1 à 7, caractérisée en ce que le projecteur de véhicule est réalisé en tant que feu de croisement (1, 1', 1", 1"') avec une lampe à décharge de gaz, dont l'ouverture d'accès (11) est assurée sur la paroi arrière de boîtier (10) contre un accès de la part du client.
  9. Unité de projecteur selon l'une des revendications 1 à 8, caractérisée en ce que l'ouverture (22) sur la paroi arrière de boîtier (10) est réalisée en tant qu'ouverture d'accès (13) pour un jeu de route (2).
  10. Unité de projecteur selon les revendications 8 et 9, caractérisée en ce que le feu de route (2) présente un réflecteur (12) qui est monté devant le réflecteur (4) du feu de croisement (1, 1', 1", 1"') en direction longitudinale du véhicule.
EP97113732A 1997-08-08 1997-08-08 Ensemble projecteur avec écran et dispositif de commande de l'écran Expired - Lifetime EP0896187B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59712677T DE59712677D1 (de) 1997-08-08 1997-08-08 Scheinwerfereinheit mit Blendenanordnung und Schaltvorrichtung für die Blendenanordnung
EP97113732A EP0896187B1 (fr) 1997-08-08 1997-08-08 Ensemble projecteur avec écran et dispositif de commande de l'écran

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97113732A EP0896187B1 (fr) 1997-08-08 1997-08-08 Ensemble projecteur avec écran et dispositif de commande de l'écran

Publications (2)

Publication Number Publication Date
EP0896187A1 EP0896187A1 (fr) 1999-02-10
EP0896187B1 true EP0896187B1 (fr) 2006-06-14

Family

ID=8227187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97113732A Expired - Lifetime EP0896187B1 (fr) 1997-08-08 1997-08-08 Ensemble projecteur avec écran et dispositif de commande de l'écran

Country Status (2)

Country Link
EP (1) EP0896187B1 (fr)
DE (1) DE59712677D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5112218B2 (ja) * 2008-08-08 2013-01-09 株式会社小糸製作所 車輌用前照灯

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3903631C1 (fr) * 1989-02-08 1990-07-05 Hella Kg Hueck & Co, 4780 Lippstadt, De
DE3939710C1 (fr) 1989-12-01 1991-05-29 Hella Kg Hueck & Co, 4780 Lippstadt, De
JP2769259B2 (ja) * 1992-01-27 1998-06-25 株式会社小糸製作所 自動車用ヘッドランプ
DE4233032A1 (de) * 1992-10-01 1994-04-07 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
DE4407108C2 (de) * 1993-06-30 2003-03-13 Bosch Gmbh Robert Fahrzeugscheinwerfer mit einer verstellbaren Blendenanordnung

Also Published As

Publication number Publication date
DE59712677D1 (de) 2006-07-27
EP0896187A1 (fr) 1999-02-10

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