EP0377805B1 - Réflecteur pour phare de véhicule - Google Patents

Réflecteur pour phare de véhicule Download PDF

Info

Publication number
EP0377805B1
EP0377805B1 EP89121005A EP89121005A EP0377805B1 EP 0377805 B1 EP0377805 B1 EP 0377805B1 EP 89121005 A EP89121005 A EP 89121005A EP 89121005 A EP89121005 A EP 89121005A EP 0377805 B1 EP0377805 B1 EP 0377805B1
Authority
EP
European Patent Office
Prior art keywords
reflector
flange
retaining lugs
edge
towards
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
EP89121005A
Other languages
German (de)
English (en)
Other versions
EP0377805A1 (fr
Inventor
Albert Röbbecke
Diethard Schnelle
Axel Buchhorn
Alwin Vrielmann
Dieter Wagener
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 EP0377805A1 publication Critical patent/EP0377805A1/fr
Application granted granted Critical
Publication of EP0377805B1 publication Critical patent/EP0377805B1/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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof

Definitions

  • Such a reflector of a vehicle headlight is known from DE-A 1 655 732.
  • the optical unit consisting of reflector and lens is inserted in a bowl-shaped housing and lies with its peripheral edge on the outer edge region of the bowl-shaped housing.
  • the retaining tabs have to be produced with a separate tool and, furthermore, their assembly is also cumbersome and time-consuming, since they can get caught in one another and have to be positioned exactly on the reflector flange. If the latter is not carried out properly, it is possible that the optical unit may be difficult or impossible to install.
  • a reflector for a vehicle headlight is known from DE-C 3 425 646.
  • the outer peripheral edge region of the reflector is flanged to its rear side, and the flanged edge region has cut-out holding tabs.
  • the fastening means engaging on the retaining tabs lie outside the projection surface of the lens or the reflector flange and can thus be seen from the front of the headlight.
  • the optical unit consisting of lens and reflector can be inserted into a shell-shaped housing, the outer peripheral edge of which rests on the edge region of the flange or the lens.
  • the legs of the doubles are insolubly connected to one another; especially if this inseparable connection is made by clinching according to DIN 8593.
  • the existing between the flange of the reflector and the retaining tab can not spring open, so that the connection to the elements supporting the reflector is rigid and stable.
  • the non-detachable connection produced by clinching can also be produced when the reflector is shaped and punched out.
  • galvanized steel sheet is used for the manufacture of the reflector, since the cut surfaces created during the clinching are protected against corrosion by the zinc coating.
  • a threaded hole is inserted in the free end portion of the retaining tabs for supporting attachment of the reflector, which threaded hole consists of a thread formed by deformation of the edge of the threaded hole, the ends of which each have a corresponding cutting surface.
  • Such one A threaded hole can be made when the reflector is formed and punched out.
  • the edge of the reflector flange in the area of the holding tabs is offset radially inward by approximately the amount of the thickness of the holding tabs.
  • the additional headlight essentially consists of a shell-shaped housing (1) made of plastic and an optical unit which is inserted into the housing and consists of a shell-shaped reflector (2) and the lens (3).
  • the reflector (1) is made of sheet metal and has an opening (4) at the apex for receiving the incandescent lamp (5).
  • the reflector has a rectangular light outlet opening which merges into a flange (6) projecting radially outwards.
  • the flange (6) has one all around Flanged edge area (7) towards the light exit direction, on the inside of which the edge area (8) of the lens (3) which springs back towards the reflector bears and is glued to it.
  • the outside of the edge area (7) of the reflector (1) lies against the inside of the peripheral edge area of the housing (1).
  • the end face of the edge area (8) of the lens (3) projects radially outward from the flange (6) and bears against the end face of the peripheral edge area of the housing (1).
  • a holding tab (9) Arranged on the broad sides of the rectangular reflector (2) is a holding tab (9) made in one piece by a corresponding free cut with the flange of the reflector.
  • the retaining tabs (9) are bent towards the rear of the reflector (2) around a bending line (10) running transversely to their longitudinal extent, which runs approximately in the plane of the end face of the peripheral reflector edge, and are folded by folding with the flange (6) of the reflector (2) except for the end section (11) of the retaining tab (9), which points on the back of the flange (6) against the light exit direction.
  • the end section (11) of the retaining tabs (9) has a threaded hole (12) which consists of a thread formed by deformation of the edge of the threaded hole (12), the ends of which each have a corresponding cutting surface (13).
  • a screw (16) which passes through the opening (14) of the housing (1), engages in the threaded hole (12) of the retaining tabs (9) and rests with its head on the base of a recess made in the outside of the housing.
  • the duplications consisting of the retaining tabs (9) and the flange (6) are secured against springing open by the two legs of the duplications being connected to one another in a non-detachable manner.
  • the permanent connection is made by clinching according to DIN 8593.
  • the non-detachable connections (15) produced by clinching are located below the end face of the edge region (8) of the lens (3). This is possible because the push-through is carried out from the front of the reflector (2) and therefore there are no bumps on the front of the flange (6) of the reflector (2). In such a position of the non-detachable connection points (15), they are not visible from the outside, and are sealed against possible dirt and splash water because of the gluing of the lens to the reflector.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (6)

  1. Réflecteur pour un phare de véhicule, présentant les caractéristiques suivantes:
    - le réflecteur (2), fabriqué en tôle et en forme de coque, présente sur son bord extérieur un rebord périphérique (6) qui vient en saillie radialement vers l'extérieur,
    - le rebord (6) correspond à peu près, en dimension et forme, au cabochon (3) qui recouvre, vers l'avant, le réflecteur en forme de coque (2),
    - le cabochon (3) est posé sur le rebord du réflecteur (2) et solidement relié avec celui-ci,
    - le réflecteur (2) présente, sur sa face arrière, au moins deux languettes de retenue (9) qui sont solidement reliées avec le rebord (6) et dont la portion d'extrémité libre (11), orientée en sens opposé à la direction de la sortie de la lumière et servant à porter et fixer le réflecteur (2), se trouve à une certaine distance du bord extérieur du rebord du réflecteur en direction de l'axe optique,
       réflecteur caractérisé par le fait que
    - les languettes de retenue (9) sont réalisées d'une pièce avec le rebord (6) du réflecteur (2),par découpe appropriée,
    - les languettes de retenue (9) sont repliées, en direction de la face arrière du réflecteur (2), autour d'une ligne de pliage (10) orientée transversalement par rapport à leur extension longitudinale,
    - les languettes de retenue (9) sont, à l'exception de la portion d'extrémité (11), doublées par pliage avec le rebord (6) du réflecteur (2).
  2. Réflecteur selon la revendication 1, caractérisé par le fait que les ailes des doublages sont réunies l'une avec l'autre de façon non détachable.
  3. Réflecteur selon la revendication 2, caractérisé par le fait que la liaison non détachable (15) se fait par jonction par traversée selon DIN 8593.
  4. Réflecteur selon l'une des revendications 1 à 3, caractérisé par le fait que c'est un trou taraudé (12), prévu dans la portion d'extrémité libre (11) des pattes de retenue (9), qui sert à porter et fixer le réflecteur (2).
  5. Réflecteur selon la revendication 4, caractérisé par le fait que le trou taraudé (12) est constitué d'un filet qui est formé par déformation du bord du trou taraudé (11) et dont les extrémités présentent chacune une surface de coupe correspondante (13).
  6. Réflecteur selon l'une des revendications 1 à 5, caractérisé par le fait que le bord du rebord (6) du réflecteur est, dans la zone des languettes de retenue (9), décalé radialement vers l'intérieur d'environ la valeur de l'épaisseur des languettes de retenue (9).
EP89121005A 1989-01-11 1989-11-13 Réflecteur pour phare de véhicule Expired - Lifetime EP0377805B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8900226U 1989-01-11
DE8900226U DE8900226U1 (de) 1989-01-11 1989-01-11 Reflektor für einen Fahrzeugscheinwerfer

Publications (2)

Publication Number Publication Date
EP0377805A1 EP0377805A1 (fr) 1990-07-18
EP0377805B1 true EP0377805B1 (fr) 1993-01-13

Family

ID=6834940

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121005A Expired - Lifetime EP0377805B1 (fr) 1989-01-11 1989-11-13 Réflecteur pour phare de véhicule

Country Status (3)

Country Link
EP (1) EP0377805B1 (fr)
DE (2) DE8900226U1 (fr)
ES (1) ES2037377T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2753148B1 (fr) * 1996-09-06 1998-12-04 Valeo Vision Projecteur pour vehicule automobile a assemblage simplifie

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1655732A1 (de) * 1966-09-03 1971-02-11 Westfaelische Metall Industrie Scheinwerfer fuer Kraftfahrzeuge
FR2577182B1 (fr) * 1985-02-08 1987-04-30 Cibie Projecteurs Dispositif de fixation et de reglage d'un bloc optique de projecteur de vehicule automobile

Also Published As

Publication number Publication date
ES2037377T3 (es) 1993-06-16
DE8900226U1 (de) 1989-02-23
EP0377805A1 (fr) 1990-07-18
DE58903292D1 (de) 1993-02-25

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