EP1798468A2 - Projecteur pour véhicule - Google Patents

Projecteur pour véhicule Download PDF

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Publication number
EP1798468A2
EP1798468A2 EP06125778A EP06125778A EP1798468A2 EP 1798468 A2 EP1798468 A2 EP 1798468A2 EP 06125778 A EP06125778 A EP 06125778A EP 06125778 A EP06125778 A EP 06125778A EP 1798468 A2 EP1798468 A2 EP 1798468A2
Authority
EP
European Patent Office
Prior art keywords
diaphragm
light
aperture
adjustable
plunger
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Withdrawn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
EP06125778A
Other languages
German (de)
English (en)
Other versions
EP1798468A3 (fr
Inventor
Alexander Gamann
Achim Mücke
Gerhard Rotgeri
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
Publication of EP1798468A2 publication Critical patent/EP1798468A2/fr
Publication of EP1798468A3 publication Critical patent/EP1798468A3/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Withdrawn legal-status Critical Current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
    • 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 headlamp for vehicles with a cup-shaped reflector, with a reflector associated with the light source, arranged between a lens and the reflector vertically adjustable aperture, which is attached to a fixed support member and by a remotely controllable adjustment at least in a first low-beam function resulting first position and a high beam resulting second position is adjustable.
  • a headlight for vehicles with a projection module which has an aperture device arranged between an elliptical reflector and a lens.
  • the diaphragm device is assigned to an outer focal point of the elliptical reflector and has a plate-shaped carrier element attached to the reflector.
  • the carrier element extends transversely to the light exit direction of the headlight and holds an adjustable aperture.
  • the panel is designed as a one-armed lever and is pivotable about an axis extending in the light exit direction axis.
  • the aperture is pivotable to a first and second position by a remotely operable adjuster mounted beneath the bezel on the support member.
  • the diaphragm In the first position, the diaphragm is held by a spring device against a stop of the support member and a diaphragm edge produces a low beam with an asymmetric light distribution.
  • the diaphragm edge On a higher and lower level extending diaphragm edge portion.
  • the axis about which the aperture is pivotal is adjacent to the low level aperture edge portion.
  • the aperture In the second position, the aperture is pivoted down and produces high beam. In this case, an aperture edge of the carrier element is arranged above the diaphragm. It is disadvantageous that with this system only two light functions can be generated remotely operated.
  • the headlights for vehicles has a diaphragm device of a projection module on a diaphragm shaft.
  • the diaphragm shaft in addition to a first position for asymmetrical low beam and a second High-beam position further positions for different low-beam functions such as motorway light, bad weather light and city light.
  • the necessary electrical control, the actuator and a switched between the actuator and the shutter shaft gear device are costly.
  • the object of the invention is to improve the described in the preamble of claim 1 headlights for vehicles such that cost at least one additional low beam function can be realized.
  • This object is achieved according to the invention in that the aperture is adjustable by the remotely controllable adjustment above the second position for high beam in at least one additional position for a further low beam function.
  • the adjustable diaphragm additionally assumes the function of at least one further dipped beam and the carrier element and the diaphragm are inexpensive to produce from sheet metal.
  • the diaphragm is arranged in the at least one additional position between the first and second position and is used to generate motorway light.
  • the aperture is only a small way down to move from the first position. In the case of motorway light, the light beam of the headlamp extends farther into the distance.
  • the diaphragm is arranged in the at least one additional position above the first position and serves to generate bad weather or city light. To generate these light functions, the diaphragm is only able to be moved a small distance upwards from the first position. In these light functions, the dimmed light beam of the headlight is directed further down.
  • the additional position of the aperture can also serve to switch between right and left traffic.
  • the adjustable diaphragm is arranged with a diaphragm edge adjacent to the upper edge region of the carrier element, is pivotable about a running in the light exit direction axis as a one-armed lever and has at least two at different levels extending diaphragm edge portions, of which in the first position of the diaphragm of the higher level extending diaphragm edge portion of the section of the light / dark boundary for the opposite lane side and the lower level diaphragm edge portion generates the section of the light / dark boundary for the own lane side, wherein the Axis is arranged at a distance from the vertical center plane of the reflector adjacent to the higher level extending diaphragm edge portion of the diaphragm.
  • the aperture is only to pivot downwards by a small acute angle and, because of the asymmetrical light distribution, the light on the own roadway then extends further into the distance.
  • the adjustable diaphragm is arranged in the second position for high beam at least with a portion of the running at a lower level diaphragm edge portion below a diaphragm edge for high beam of the support element.
  • the remotely controllable adjusting device is formed by a bidirectional drive arranged on the carrier element, for example a double-stroke magnet or electric motor, which has a plunger that is translationally adjustable transversely to the light exit direction and in a first end position with a freestanding first end section the adjustable diaphragm holds in its second position and in a second end position with another freestanding end portion of the adjustable aperture in its additional position for highway light, the aperture occupies the first position in a middle position of the plunger.
  • a Doppelhubmagnet or an electromagnet is inexpensive available as a standardized electric actuator.
  • the adjustable diaphragm has on its axis adjacent side a downwardly pointing adjusting arm, which rests in the first and second positions at a free end portion of the plunger by the force of a support member on Erten held first spring device under bias , And in the first position abuts against a stop of the carrier element.
  • the spring device By the spring device, the aperture is held without play in the two positions.
  • the diaphragm and the support element are inexpensive to produce from sheet metal.
  • the aperture is held without play in the additional position, if in the additional position of the aperture rotatably mounted on the support member Doppelarmiger lever with one arm with one of the two end portions of the plunger and with the other serving as a stop for the aperture arm with a freestanding Cooperates end portion of the diaphragm, wherein the plunger holds on the double-armed lever, the aperture in its additional position for highway light against the force of the first spring device.
  • the shutter moves automatically to the second position for low beam when cooperating with the double-armed lever second spring device which is mounted on the support member, together with the first spring device, the plunger from the second or additional position in his Adjusted center position and thus holds the panel in its first position.
  • the two spring devices may be formed by a one-piece spring.
  • the second and additional position are realized by applying a vehicle electrical system voltage.
  • the first position is preferably realized by spring return in the de-energized state. Furthermore, however, by an upstream electronics, the load of the drive can be reduced, a bearing feedback can be integrated and a coupling to the vehicle bus can be realized.
  • the headlight for vehicles shown in Figure 1 has a pot-shaped headlamp housing 24, on the front edge of a cup-shaped, translucent lens 25 is placed.
  • a projection module is arranged adjustable, which consists of an elliptical reflector 1, a light source 2, an adjustable aperture 4 and a lens 3.
  • a light source 2 is arranged in an internal focal point of the elliptical reflector 1.
  • a light source 2 can serve a filament of an incandescent lamp or an arc of a gas discharge lamp.
  • the lamp is inserted into a reflector opening 26 in the apex region of the reflector 1.
  • the adjustable diaphragm 4 is arranged with its diaphragm edge 10 near an outer focal point of the elliptical reflector 1.
  • a reflection surface of the elliptical reflector 1 may be a free-form surface, that is, at least areas of the reflection surface are not determined by a mathematical function.
  • the adjustable diaphragm 4 and a remotely controllable adjusting device 6 are attached to a plate-shaped support member 5.
  • the plate-shaped support member 5 extends below the horizontal center plane of the reflector 1 to the front edge 27 of the reflector 1 and is fixed thereto. Therefore, the plate-shaped support member 5 extends in a surface through which the optical axis of the reflector 1 passes vertically.
  • the plate-shaped support element 5 has both Side of the vertical center plane of the reflector 1 fastening means 28, through which the carrier element 5 can be fastened to the front edge 27 of the reflector 1.
  • the aperture 4 is a one-armed lever, which is pivotable on the carrier element 5 about an axis 12 extending in the light exit direction into a first and second position 7 and 8 resulting in a dipped beam and main beam.
  • the diaphragm 4 extends in its longitudinal extent adjacent to the upper edge region 11 of the carrier element fifth In the first position 7 for dipped beam, the diaphragm edge 10 of the diaphragm 4 extends above the carrier element 5 and produces an asymmetrical dipped beam with shutter edge portions 13 and 14 extending at different levels.
  • the diaphragm 4 After pivoting the diaphragm 4 from the low-beam position to the high-beam position, the diaphragm 4 runs at least the lower edge portion 14 below a serving for high-beam diaphragm edge 15 of the support element 5.
  • the serving for high-beam diaphragm edge 15 is through a recess in the upper edge region 11th the support member 5 is formed.
  • the axis 12, about which the aperture is pivotable, is arranged near the upper edge region 11 of the support element 5, the front edge 27 of the reflector 1 and below the higher level extending diaphragm edge portion 13 of the diaphragm 4.
  • the diaphragm 4 and the adjusting device 6 are mounted on the side facing away from the reflector of the support member 5, wherein the adjusting device 6 is fixed below the elongated diaphragm 4 at a portion 7 of the support element 5, which serves to shield light beams of the light source 2.
  • the carrier element 5 and the parts held by it form a structural unit which is preassembled.
  • the remotely controllable adjusting device 6 shown in FIGS. 2 to 4 has a double-stroke magnet with a plunger 16.
  • the plunger 16 extends horizontally and transversely to the light exit direction of the headlamp and thus parallel to the plate-shaped support member 5. With a free-standing end portion of the plunger 16 acts an adjustment 20 of the panel 4 together.
  • the adjusting arm 20 extends downward in front of the axis 12 and extends to the diaphragm edge 10 of the diaphragm 4 at an acute angle.
  • the adjusting arm 20 is in the first and second positions 7 and 8 by a first spring device 21 with a crowned end in a first end position of the plunger 16 at an end portion of the plunger 16 under prestress.
  • the first spring device 21 is a coil spring whose center line with the Axis 12 of the diaphragm 4 coincides and is held biased by two voltage applied between the panel 4 and the support member 5 freestanding leg.
  • the first spring device 21 holds the panel 4 with a free end portion 31 against a stop 29 of the support member 5.
  • the shutter 4 rattling at an end portion of the plunger 16th the adjusting device 6.
  • the aperture 4 is adjustable in a lying between the first and second positions 7 and 8 additional position 9 for motorway light. Since the axis 12 of the higher level diaphragm edge portion 13 is adjacent, and thus the lower level diaphragm edge portion 14 is located lower than the other diaphragm edge portion 13 as the diaphragm 4 pivots to the additional position 9, the range of the asymmetrical light beam is in the additional one Position 9 for motorway light on the own road even with a small swivel angle of the aperture 4 particularly large.
  • the adjustment of the diaphragm 4 in the additional position 9 is effected by the other end portion of the plunger 16, which cooperates via a double-armed lever 22 with a free end portion 31 of the aperture 4.
  • the double-armed lever 22 is pivotally mounted on the carrier element 5 about a pivot axis 30 extending in the light exit direction and has two arms which are at an acute angle to each other.
  • the second spring device 23 is a helical spring whose center axis coincides with the pivot axis 30 of the double-armed lever 22 and which has two freestanding legs which bias the second spring device 23 by their abutment with the short arm of the lever 22 and the carrier element 9 hold.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP06125778A 2005-12-15 2006-12-11 Projecteur pour véhicule Withdrawn EP1798468A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005059861A DE102005059861A1 (de) 2005-12-15 2005-12-15 Scheinwerfer für Fahrzeuge

Publications (2)

Publication Number Publication Date
EP1798468A2 true EP1798468A2 (fr) 2007-06-20
EP1798468A3 EP1798468A3 (fr) 2007-08-22

Family

ID=37805938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06125778A Withdrawn EP1798468A3 (fr) 2005-12-15 2006-12-11 Projecteur pour véhicule

Country Status (2)

Country Link
EP (1) EP1798468A3 (fr)
DE (1) DE102005059861A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2062775A1 (fr) * 2007-11-22 2009-05-27 Hella KGaA Hueck & Co. Dispositif de phares de projection pour véhicules
EP2180245A1 (fr) * 2008-10-23 2010-04-28 Hella KGaA Hueck & Co. Phare pour un véhicule automobile doté d'un dispositif d'obturation
CN103162109A (zh) * 2011-12-14 2013-06-19 海洋王照明科技股份有限公司 一种可调光束宽窄的灯具

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010062278B4 (de) 2010-12-01 2013-01-03 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugscheinwerfer mit einem Projektionslichtmodul und einem Mehrpunkt-Blendenstellmechanismus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1070911A2 (fr) * 1999-07-23 2001-01-24 Zizala Lichtsysteme GmbH Projecteur pour véhicules automobiles
DE10356950A1 (de) * 2003-12-05 2005-06-30 Automotive Lighting Reutlingen Gmbh Schrittgetriebe eines Verstellmechanismus für präzise zu bewegende Teile und Frontscheinwerfer eines Kraftfahrzeugs mit einem derartigen Getriebe
EP1640658A2 (fr) * 2004-09-22 2006-03-29 Automotive Lighting Reutlingen GmbH Projecteur avec plusieurs écrans

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528820C2 (de) * 1985-08-10 1994-02-24 Bosch Gmbh Robert Abblendlicht- oder Nebellichtscheinwerfer für Kraftfahrzeuge
DE19501173A1 (de) * 1995-01-17 1996-07-18 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge
DE19708109A1 (de) * 1997-02-28 1998-09-03 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
DE19739089A1 (de) * 1997-09-06 1999-03-11 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
FR2796448B1 (fr) * 1999-07-13 2001-12-21 Valeo Vision Projecteur pour vehicule automobile avec un cache a multipositions
ATA18292000A (de) * 2000-10-25 2005-09-15 Zizala Lichtsysteme Gmbh Fahrzeugscheinwerfer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1070911A2 (fr) * 1999-07-23 2001-01-24 Zizala Lichtsysteme GmbH Projecteur pour véhicules automobiles
DE10356950A1 (de) * 2003-12-05 2005-06-30 Automotive Lighting Reutlingen Gmbh Schrittgetriebe eines Verstellmechanismus für präzise zu bewegende Teile und Frontscheinwerfer eines Kraftfahrzeugs mit einem derartigen Getriebe
EP1640658A2 (fr) * 2004-09-22 2006-03-29 Automotive Lighting Reutlingen GmbH Projecteur avec plusieurs écrans

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2062775A1 (fr) * 2007-11-22 2009-05-27 Hella KGaA Hueck & Co. Dispositif de phares de projection pour véhicules
EP2180245A1 (fr) * 2008-10-23 2010-04-28 Hella KGaA Hueck & Co. Phare pour un véhicule automobile doté d'un dispositif d'obturation
US8517580B2 (en) 2008-10-23 2013-08-27 Hella Kgaa Hueck & Co. Headlight for a motor vehicle having a masking apparatus
CN103162109A (zh) * 2011-12-14 2013-06-19 海洋王照明科技股份有限公司 一种可调光束宽窄的灯具
CN103162109B (zh) * 2011-12-14 2015-11-18 海洋王照明科技股份有限公司 一种可调光束宽窄的灯具

Also Published As

Publication number Publication date
EP1798468A3 (fr) 2007-08-22
DE102005059861A1 (de) 2007-06-28

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