EP0985871B1 - Projecteur et procédé de fabrication de celui-ci - Google Patents

Projecteur et procédé de fabrication de celui-ci

Info

Publication number
EP0985871B1
EP0985871B1 EP99117623A EP99117623A EP0985871B1 EP 0985871 B1 EP0985871 B1 EP 0985871B1 EP 99117623 A EP99117623 A EP 99117623A EP 99117623 A EP99117623 A EP 99117623A EP 0985871 B1 EP0985871 B1 EP 0985871B1
Authority
EP
European Patent Office
Prior art keywords
lens
ring
reflector
flange
support element
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
EP99117623A
Other languages
German (de)
English (en)
Other versions
EP0985871A2 (fr
EP0985871A3 (fr
Inventor
Michael Hack
Pietro-Antonio Mazziotti
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 EP0985871A2 publication Critical patent/EP0985871A2/fr
Publication of EP0985871A3 publication Critical patent/EP0985871A3/fr
Application granted granted Critical
Publication of EP0985871B1 publication Critical patent/EP0985871B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • F21S41/55—Attachment thereof
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses

Definitions

  • the invention relates to a headlamp for vehicles according to the preamble of claim 1. Furthermore, the invention relates to a method for manufacturing a headlamp according to the preamble of claim 10.
  • a headlight for vehicles which has a reflector with a horizontally extending optical axis, a first focal point and a second focal point, which is further away from the reflector than the first focal point has.
  • a light source is arranged in the first focus of the reflector.
  • a diaphragm is arranged in the second focal point of the reflector to form a light / dark boundary.
  • the panel is formed on a support element which is firmly connected to the reflector.
  • a lens On a side facing away from the reflector end of the support element, a lens is fixed, which has a focal point in the vicinity of the second focal point of the reflector. The emerging from the headlight beams are thus generated according to the projection principle.
  • the support element has on a side facing the lens on radially inwardly projecting lugs on which the lens is positioned against the light exit direction.
  • the lens lies with its peripheral edge within the support element and is surrounded by an inwardly bent rand wornem end of the support element to form a gap.
  • a snap ring can be used, so that the lens is held in the opening of the support element.
  • a headlight for vehicles according to a correspondingly functioning projection principle is known, in which the lens is used in the light exit direction in a support member and comes to an inwardly shaped edge-side end of the support element to the plant.
  • this allows an improved centering and adjustment of the lens.
  • the mounting of the lens is relatively expensive. A tightness between the lens and the support element can not be guaranteed.
  • a headlamp for vehicles which operates on the projection principle and in which a lens is adhesively bonded by gluing to a holding element.
  • the holding element is fastened to a support element adjoining a reflector.
  • the lens is arranged on peripherally distributed, inwardly projecting lugs on the holding element. In the radial direction, the edge surface of the lens abuts directly on an inner side of the holding element and, together with inwardly angled ends of the holding element, forms an adhesive bed for receiving an adhesive.
  • a disadvantage of the known headlights that tolerance differences in the distributed arranged approaches can not be compensated by the bond.
  • the fact that a lens is provided which is connected to the support element, the headlight on a complex structure.
  • a headlight for vehicles which via a reflector, via a light source, via a diaphragm, via a subsequent to the reflector support member via a fixed to the support member lens and a ring for fixing the Lens on the support member has.
  • the ring engages with a retaining web, the outside of the flange-like expiring support member and the lens.
  • Object of the present invention is therefore to develop a headlamp and a method for producing a headlamp for vehicles such that a compact design of the headlamp, safe and reliable storage of the lens is ensured in the same and a simple installation of the headlamp.
  • the invention has the features of claim 1 and patent claim 9.
  • the advantage of the headlight according to the invention is, in particular, that by placing an additional ring, the lens is captive in a predetermined adhesive position can be brought. In cooperation with the axially projecting flange and of this radially projecting circumferential stop a secure and reliable adjustment of the lens in the axial and radial directions is achieved.
  • the ring engages with a circumferential immersion web in the adhesive-filled adhesive bed, the adhesive is selectively pressed against the edge surfaces to be joined of the support member on the one hand and the lens on the other.
  • the formation of the immersion web causes a higher dimensional stability of the ring itself.
  • the ring has a spaced from the dip web circumferential retaining ridge which bears flat against the outside of the flange.
  • the retaining web forms, together with the immersion web, a first annular channel which serves to receive the adhesive and thus allows a guided distribution of the adhesive between the flange and the ring.
  • the holding web and the immersion web run together at a distance from a peripheral edge of the flange, so that the first annular channel extends in a region between the stop and a transverse edge beyond the edge of the flange.
  • the ring has an inwardly projecting nose, which covers the peripheral lens edge and together with the immersion web forms a second annular channel for receiving excess adhesive. It thus serves as an optical cover of the lens edge.
  • the inwardly projecting nose allows centering of the lens.
  • the holding web and the nose form an outer side of the ring, so that the ring is designed as a visually appealing trim ring.
  • the retaining web on radially inwardly projecting projections, which engage in corresponding receptacles of the flange. This allows a predetermined positioning of the ring during the curing of the adhesive.
  • the advantage of the method according to the invention is in particular that a simple and safe installation is guaranteed.
  • the lens is inserted and positioned under contact with a stop of the support element.
  • a final adjustment of the lens is made by placing the ring during the curing of the adhesive.
  • the ring is applied with latching with the holding web, so that the lens is held captive in the opening of the support element during the curing time of the adhesive.
  • a working according to the projection principle headlight (1) consists essentially of a reflector (2), a light source (3) and a lens (4).
  • the reflector (2) is formed ellipsoidal and has a central opening which serves as a lamp-sensing hole for the light source (3).
  • a lamp holder (5) is integrally connected to the reflector (2).
  • a rubber covering cap (6) is placed on the back of the lamp holder (5) on the back of the lamp holder (5) .
  • the light source (3) is designed as an incandescent lamp and positioned with the filament of the incandescent lamp (4) in a first focal point of the reflector (2) facing away from the lens (4).
  • a diaphragm (7) is arranged whose edge generates a light / dark boundary.
  • the lens (4) is designed as a plano-convex lens, in the focal point of the diaphragm (7) is arranged.
  • the panel (7) is formed on a support element (8) which is firmly connected to the reflector (2).
  • the reflector (2) on the edge side a circumferential annular groove (9) into which a projection (10) of the support element (8) can engage and is held by gluing in the same.
  • a screw connection (11) is provided so that the reflector (2) together with the support element (8) forms a robust housing (23).
  • the headlight (1) can be used as an auxiliary headlight, in particular as a fog light, which is arranged below a bumper of a vehicle or in a front end of the vehicle.
  • the support member (8) For captive attachment of the lens (4) to the support member (8), the support member (8) at an edge (12) extending in the axial direction of an annular flange (13), of which, spaced from a free end thereof, a Stop (14) extends radially inwardly to form a right angle.
  • a receptacle for the lens (4) is created, in which it is determined by further measures described below safely and permanently.
  • a fork-shaped ring (15) on the edge (12) of the support element (8) set.
  • the ring (15) consists of three substantially opposite to the light exit direction extending annular webs, wherein an outer retaining web (16) has an approximately twice as large axial extent than that of a central immersion web (17).
  • the retaining web (16) and the immersion web (17) extend substantially parallel to one another.
  • An inner land is formed as a nose (18) which extends at an acute angle to the immersion land (17).
  • the nose (18) is formed substantially shorter than the immersion web (17) and the retaining web (16).
  • the lens (4) To mount the lens (4), this is inserted into the receptacle of the support element (8) formed by the flange (13) and the stop (14). Subsequently, an adhesive (19) on the edge side of the lens (4), namely applied in an adhesive bed forming area between the inside of the flange (13) and the edge of the lens (4). Subsequently, opposite to the light exit direction, the ring (15) is placed on the outside of the flange (13) while the holding web (16) rests on it.
  • the holding web (16) has radially inwardly projecting projections (20), which engage in corresponding recesses in the outer side of the flange (13), so that the ring (15) during the curing of the adhesive (19) held in a defined position becomes.
  • Excess adhesive (19) can escape into an inner channel (22) formed by the nose (18) and the immersion web (17). This allows the Nose (18), that the adhesive (19) is not visible from the outside. Moreover, the nose (18) is bent inwardly so as to allow it to be centered on the lens (4) in the receptacle. The nose (18) is next to the decorative function of the ring (15) also a centering function.
  • the lens (4) forms the front in the light exit direction termination of the headlamp (1).
  • the planar surface of the lens (4) has vertically extending prisms, not shown.
  • the headlight (1) has a compact and robust construction.
  • the support element (8) is made of a magnesium casting material.

Landscapes

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

Claims (10)

  1. Projecteur pour véhicules, en particulier projecteur antibrouillard, avec
    - un réflecteur (2) comportant un premier et un deuxième foyer,
    - une source lumineuse (3) disposée au niveau du premier foyer du réflecteur (2),
    - un diaphragme (7) disposé à proximité du deuxième foyer du réflecteur (2), pour la génération d'une limite clair/obscur,
    - un élément de support (8) prolongeant le réflecteur (2) dans le sens de la sortie lumineuse,
    - une lentille (4) fixée sur l'élément de support (8), sur le côté de celui-ci opposé au réflecteur (2), dont le foyer est proche de la région du deuxième foyer du réflecteur (2), l'élément de support (8) présentant un collier (13) annulaire s'étendant en direction axiale et une butée (14) circonférentielle saillant du collier (13), radialement vers l'intérieur, pour la butée directe de la lentille (4),
    - avec une bague (15) pour la fixation de la lentille (4) sur l'élément de support (8) au moyen d'un adhésif, une nervure circonférentielle de maintien (16) de la bague (15) étant appliquée sur le côté extérieur du collier (13), caractérisé en ce que la bague (15) est formée avec une section transversale en fourche et comporte une nervure de plongée (17) s'engageant dans un logement de collage circonférentiel, rempli d'adhésif, formé par le collier (13) et par la face avant de la lentille (4).
  2. Projecteur selon la revendication 1, caractérisé en ce que la nervure de maintien (16) et la nervure de plongée (17) se rejoignent à intervalle de l'extrémité libre du collier (13) pour former une gouttière extérieure (21) annulaire.
  3. Projecteur selon la revendication 1 ou 2, caractérisé en ce qu'un bec (18) plié vers l'intérieur est directement raccordé à la nervure de plongée (17) pour former une gouttière intérieure (22) annulaire de la bague (15).
  4. Projecteur selon l'une des revendications 1 à 3, caractérisé en ce que la nervure de maintien (16) et le bec (18) forment une face extérieure de la bague (15), laquelle s'étend à partir du collier (13) en direction d'un bord de la lentille (4), avec une section transversale en arc et en formant un angle obtus.
  5. Projecteur selon l'une des revendications 1 à 4, caractérisé en ce que le bec (18) est formé par un double segment intérieur de bordure de la bague (15).
  6. Projecteur selon l'une des revendications 1 à 5, caractérisé en ce que la nervure de maintien (16) présente dans une zone de bord au moins une saillie (20) orientée radialement vers l'intérieur, laquelle s'engage par enclenchement dans un logement du collier (13).
  7. Projecteur selon l'une des revendications 1 à 6, caractérisé en ce que l'extension radiale de la nervure de maintien (16) est deux fois plus grande que l'extension axiale de la nervure de plongée (17).
  8. Projecteur selon l'une des revendications 1 à 7, caractérisé en ce que la nervure de plongée (17) est disposée à intervalle d'une face intérieure du collier (13) et/ou d'un bord de la lentille (4).
  9. Procédé de fabrication d'un projecteur pour véhicules, où un réflecteur (2) ellipsoïde comprend une source lumineuse (3) disposée dans un premier foyer de celui-ci, un élément de support (8) prolongeant le réflecteur (2) dans le sens de la sortie lumineuse, avec un diaphragme (7) disposé au niveau d'un deuxième foyer du réflecteur (2) ainsi qu'une lentille (4) montée à intervalle du diaphragme (7), ladite lentille (4) étant appliquée sur une butée (14) annulaire de l'élément de support (8) contre le sens de sortie lumineuse, un adhésif étant appliqué dans une zone de bord de la lentille (4) et une bague (15) sur le bord libre de l'élément de support (8), la lentille (4) étant raccordée à l'élément de support (8) et imperdable pendant le temps de durcissement de l'adhésif (19), caractérisé en ce que la bague (15) s'engage par une nervure de plongée (17) dans un logement de collage circonférentiel, rempli d'adhésif, formé par un collier (13) de l'élément de support (8) et par la face avant de la lentille (4), si bien que l'adhésif est comprimé à plat sur la face intérieure du collier (13).
  10. Procédé selon la revendication 9, caractérisé en ce que la bague (15) est appliquée par enclenchement d'une nervure de maintien (16) de celle-ci avec un collier (13) terminal de l'élément de support (8), sur le bord de l'élément de support (8).
EP99117623A 1998-09-11 1999-09-07 Projecteur et procédé de fabrication de celui-ci Expired - Lifetime EP0985871B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19841584 1998-09-11
DE19841584A DE19841584A1 (de) 1998-09-11 1998-09-11 Scheinwerfer und Verfahren zur Herstellung eines Scheinwerfers

Publications (3)

Publication Number Publication Date
EP0985871A2 EP0985871A2 (fr) 2000-03-15
EP0985871A3 EP0985871A3 (fr) 2001-10-31
EP0985871B1 true EP0985871B1 (fr) 2006-08-16

Family

ID=7880613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99117623A Expired - Lifetime EP0985871B1 (fr) 1998-09-11 1999-09-07 Projecteur et procédé de fabrication de celui-ci

Country Status (4)

Country Link
EP (1) EP0985871B1 (fr)
AT (1) ATE336693T1 (fr)
DE (2) DE19841584A1 (fr)
ES (1) ES2272027T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3135510A1 (fr) * 2022-05-10 2023-11-17 Valeo Vision Module lumineux comportant un système d’imagerie optique directe

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10254048B4 (de) * 2002-11-20 2008-02-07 Hella Kgaa Hueck & Co. Scheinwerfer für Fahrzeuge
DE102006053044A1 (de) * 2006-11-10 2008-05-15 Hella Kgaa Hueck & Co. Justierverfahren und Justiervorrichtung für eine Beleuchtungsvorrichtung
DE102007011263A1 (de) 2007-03-08 2008-09-11 Hella Kgaa Hueck & Co. Beleuchtungseinrichtung für Fahrzeuge
DE102009019730A1 (de) * 2009-05-05 2010-11-11 Hbpo Gmbh Frontendmodul für Fahrzeuge
IT1402970B1 (it) * 2010-11-16 2013-09-27 Solergy Inc Sistema per la conversione della radiazione solare in energia elettrica e/o termica
DE202011108359U1 (de) * 2011-11-28 2012-01-17 Automotive Lighting Reutlingen Gmbh Projektions-Lichtmodul für einen Kraftfahrzeugscheinwerfer

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1393573A (en) * 1920-10-21 1921-10-11 John A Ritter Headlamp
CH98941A (fr) * 1922-01-19 1923-05-01 Ame Des Usines Jean Gallay Soc Appareil d'éclairage pour véhicules.
GB1180026A (en) * 1966-06-13 1970-02-04 Lucas Industries Ltd Vehicle Lamps.
DE3516813A1 (de) * 1985-05-10 1986-11-13 Hella KG Hueck & Co, 4780 Lippstadt Abgeblendeter fahrzeugscheinwerfer
JPH0817043B2 (ja) * 1989-09-13 1996-02-21 株式会社小糸製作所 車輌用灯具
JPH03101001A (ja) * 1989-09-13 1991-04-25 Koito Mfg Co Ltd 車輌用灯具
DE3940245A1 (de) 1989-12-01 1991-02-21 Guenter Richter Fahrerhauskuehlung fuer luftverdichter-ausgeruestete fahrzeuge
JPH0821243B2 (ja) * 1990-06-19 1996-03-04 株式会社小糸製作所 投射型自動車用ヘッドランプ
DE4124374A1 (de) * 1991-07-23 1993-01-28 Hella Kg Hueck & Co Scheinwerfer fuer fahrzeuge
DE9218431U1 (de) * 1992-10-01 1994-02-17 Hella Kg Hueck & Co, 59557 Lippstadt Abgeblendeter Scheinwerfer für Fahrzeuge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3135510A1 (fr) * 2022-05-10 2023-11-17 Valeo Vision Module lumineux comportant un système d’imagerie optique directe

Also Published As

Publication number Publication date
DE19841584A1 (de) 2000-03-16
ES2272027T3 (es) 2007-04-16
EP0985871A2 (fr) 2000-03-15
DE59913777D1 (de) 2006-09-28
ATE336693T1 (de) 2006-09-15
EP0985871A3 (fr) 2001-10-31

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