EP0548555B1 - Scheinwerfer für Fahrzeuge - Google Patents

Scheinwerfer für Fahrzeuge Download PDF

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Publication number
EP0548555B1
EP0548555B1 EP92119881A EP92119881A EP0548555B1 EP 0548555 B1 EP0548555 B1 EP 0548555B1 EP 92119881 A EP92119881 A EP 92119881A EP 92119881 A EP92119881 A EP 92119881A EP 0548555 B1 EP0548555 B1 EP 0548555B1
Authority
EP
European Patent Office
Prior art keywords
reflector
opening
arm
shape
headlamp according
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
EP92119881A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0548555A1 (de
Inventor
Hubert Borgschulte
Franz-Josef Schäfers
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 EP0548555A1 publication Critical patent/EP0548555A1/de
Application granted granted Critical
Publication of EP0548555B1 publication Critical patent/EP0548555B1/de
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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—Attachment thereof

Definitions

  • Such a headlight for vehicles is known from DE-GM 83 10 535.
  • the shading device arranged between the light source and the lens is cup-shaped.
  • the light source formed by an incandescent lamp partially projects into the cup-shaped shading device.
  • the cup-shaped shading device has an integrally formed arm on opposite outer edge sections, which passes through the opening of the reflector and only with the radially outwardly bent section on the outer edge region the opening of the reflector.
  • the bulb has on its base a fixed, circumferential retaining ring which, when the bulb is inserted from the rear of the headlight, presses into the opening of the reflector with its outer surface against the section of the respective arm passing through the opening of the reflector.
  • the shading device is easy to install, since in a first working step the shading device with the U-shape of its arm is to be placed like a clamp on the opening edge, and in a second working step the retaining ring is to be inserted into the opening from the back of the headlight .
  • the retaining ring When inserting the retaining ring into the opening of the reflector, the retaining ring beaks with the side facing the reflector on the outer leg of the U-shape and then presses the portion of the U-shape connecting the legs towards the opening edge and thus the inner sides of the legs against the respective opening edge of the reflector.
  • the section connecting the legs of the U-shape of the arm radially passes through the recess of the retaining ring or the opening edge with play, at least between the retaining ring and the arm there is no tight interference fit.
  • the retaining ring z. B. is fixed by a permanent connection to the reflector.
  • the section of the U-shape of the arm connecting the legs is made slightly shorter than the distance between the outer and inner opening edge against which the legs of the U-shape rest.
  • the radial force with which the retaining ring presses the legs against the respective opening edge is as small as possible, and deformation of the reflector is thus largely excluded.
  • the inner leg of the U-shape is flat on the inner Border area of the opening of the bowl-shaped reflector abuts. As a result, the shading device is held precisely in relation to the light source.
  • the outer leg has a smaller cross section than the inner leg of the U-shape.
  • the shading device is held on the reflector largely free of vibrations.
  • the opening of the reflector is surrounded by a collar or, in the case of a reflector made of plastic, the wall thickness is made correspondingly thick.
  • a further advantage is if the retaining ring on the side facing the inside of the reflector has a run-up slope for the arm of the diaphragm and the legs of the U-shape are spread apart.
  • Such an inclined slope of the retaining ring or an inclined outer leg serves for the retaining ring as a threading aid when inserting the retaining ring into the opening of the reflector.
  • the recess for the arm which is introduced into the retaining ring, rests on the outer leg of the U-shape of the arm with an inner side facing the headlight, and the inner side of the recess, which is in contact with the free leg, of an intersecting surface that runs transverse to the arm is formed.
  • the inside of the depression facing the reflector serves as a stop for the retaining ring.
  • the depression of the retaining ring is made approximately as wide in the circumferential direction as the section of the U-shape passing through it. As a result, the retaining ring is fixed against possible twisting.
  • the retaining ring is formed by a hollow cylinder, which protrudes outwards with an end section from the opening of the reflector.
  • the end portion protruding from the opening serves as a handle when inserting the retaining ring into the opening of the reflector.
  • the retaining ring is provided with fastening means for a retaining spring with which the incandescent lamp can be fixed in the opening of the reflector.
  • the retaining ring is provided on its end section projecting outward from the opening of the reflector with a radially projecting projection, between the and the outer edge region of the opening of the reflector the holding spring for the light source is pivotable with a section is held.
  • the side of the retaining ring opposite the pivot bearing of the retaining spring has a fastening means on which a free end of the retaining spring can be detachably fixed.
  • the shader carry two arms which run above the horizontal center plane of the headlight.
  • the shading device does not extend below the horizontal central plane of the headlight and is nevertheless intended to be connected to the reflector in a very firm and vibration-free manner.
  • the dish-shaped reflector (1) shown in FIGS. 1 to 3 is made of sheet metal, and the opening (2) made at the apex of the reflector (1) is surrounded by the collar (3) pointing towards the rear of the reflector (1).
  • the opening (2) of the reflector (1) from the back of the reflector is the shape of a hollow cylinder executed and made of sheet metal retaining ring (4) introduced.
  • the outside diameter of the retaining ring (4) corresponds approximately to the inside diameter of the opening (2) of the reflector (1).
  • the retaining ring (4) overlaps with a wall section with the entire collar (3) and projects with the end section (5) towards the rear of the reflector (1) out of the opening (2).
  • the retaining ring After inserting the retaining ring (4) into the opening (2) of the reflector (1), the retaining ring is inseparably connected to the collar (3) of the reflector (1) by the depressions (6) pressed into its inside, since material of the Retaining ring (4) is pressed into the inside of the collar (3) of the reflector (1) by plastic deformation.
  • the incandescent lamp (7) is inserted into the opening (2) of the reflector (1) from the rear of the reflector (1).
  • the base (8) of the incandescent lamp (7) has the flags (9) serving as locking means.
  • the flags (9) are directed radially outwards and engage in the recess (10) of the retaining ring (4) which is open towards the rear of the reflector (1).
  • the recesses (10) are so deep that the flags do not rest on the base of the recess (10), but on the end face (11) of the collar (3) surrounding the opening (2) of the reflector (1).
  • the cutouts in the end face (11) of the collar (3) are made approximately as wide as the flag (9) engaging in them is wide.
  • One of the cutouts (10) has in the facing sides the undercut (12) against which the U-shaped retaining spring (13) rests with the free ends of its legs (14).
  • the retaining ring (4) together with the end face (11) of the collar (3) of the reflector (1) forms a pivot bearing for the legs (14) of the retaining spring ( 13) connecting web (15).
  • the web (15) lies against the end face (11) of the collar (3) and is in this position by the outside of the retaining ring (4) attached projection (16) held captive.
  • the two legs (14) of the U-shaped retaining spring (13) have in the middle approximately a section bent towards the base (8) of the incandescent lamp (7), with which they bear against the base (8) under pre-tension and thus the flags ( 9) of the base (8) against the end face (11) of the collar (3).
  • the shader (17) shields the light rays of the incandescent lamp (7), which run directly from the incandescent lamp to the front and upwards.
  • the shader (17) is made of sheet metal and has the arm (18) passing through the opening (2) of the reflector (1).
  • the free end section of the arm (18) is U-shaped, and its legs (19 and 20) which extend apart from one another surround the edge of the opening (2) of the reflector (1).
  • the section (21) connecting the legs (19 and 20) of the U-shape of the arm (18) lies against the base of the depression (22) made from the outside in the retaining ring (4).
  • the inner leg (20) of the U-shape of the arm (18) lies flat against the bowl-shaped reflection surface (23) of the reflector (1), and the outer leg lies against that formed by the end face (11) of the collar (3) outer edge of the opening (2) of the reflector (1).
  • On the outside of the leg (19) of the arm (18) lies the recess (22) with the inside formed by the cut surface (24).
  • the recess (22) in the retaining ring (5) is approximately as wide as the arm (18).
  • the retaining ring (4) is shown before it is inserted into the opening (2) of the reflector (3).
  • the retaining ring (4) snaps with its ramp (25) onto the outer leg (19) of the U-shape of the arm (18) and presses against it further insertion into the opening (2) the section (21) connecting the legs (19 and 20) towards the collar (3) until it rests against the base of the recess (22).
  • the section (21) is made slightly shorter than the inside of the opening (2) of the reflector (1) is wide, it is always ensured that after inserting the retaining ring (4) into the opening (2) of the reflector (1 ) the inner leg (20) lies flat against the reflection surface (23) of the reflector (1), the outer leg (19) bending outwards.
  • the retaining ring (4) can be inserted into the opening (2) of the reflector (1) until, with the inside (24) of its recess (22) on the outside of the outer leg (19), which is used to fix it in the Recess (26) of the collar (3) is caught, stops.
  • the reflector (1) is made of plastic and so thick that the arm (18) of the shader (17) without a collar surrounding the opening (2) of the reflector (1) (as in of the embodiment according to FIGS. 1 to 3) can be rigidly connected to the reflector (1).
EP92119881A 1991-12-21 1992-11-23 Scheinwerfer für Fahrzeuge Expired - Lifetime EP0548555B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4142536 1991-12-21
DE4142536A DE4142536A1 (de) 1991-12-21 1991-12-21 Scheinwerfer fuer fahrzeuge

Publications (2)

Publication Number Publication Date
EP0548555A1 EP0548555A1 (de) 1993-06-30
EP0548555B1 true EP0548555B1 (de) 1995-03-15

Family

ID=6447856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92119881A Expired - Lifetime EP0548555B1 (de) 1991-12-21 1992-11-23 Scheinwerfer für Fahrzeuge

Country Status (3)

Country Link
EP (1) EP0548555B1 (es)
DE (2) DE4142536A1 (es)
ES (1) ES2069958T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0900973A2 (de) 1997-09-06 1999-03-10 Hella KG Hueck & Co. Scheinwerfer für Fahrzeuge

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4334719B4 (de) * 1993-10-12 2004-07-29 Robert Bosch Gmbh Fahrzeugscheinwerfer
US5402325A (en) * 1993-12-28 1995-03-28 General Motors Corporation Vehicle headlamp assembly
FR2749239B1 (fr) * 1996-05-30 1998-08-21 Valeo Vision Projecteur, notamment pour vehicule automobile, presentant une structure mecanique perfectionnee
DE19814788B4 (de) * 1998-04-02 2009-01-29 Automotive Lighting Reutlingen Gmbh Fahrzeugscheinwerfer für Abblendlicht und Fernlicht
FR2783037B1 (fr) * 1998-09-04 2000-12-29 Valeo Vision Procede de montage d'un occulteur dans un projecteur de vehicule automobile, et projecteur equipe des moyens de montage correspondants
FR2807142B1 (fr) 2000-03-29 2002-05-31 Const Electromecaniques Thome Dispositif pour la fixation d'une lampe et d'un occulteur a un reflecteur de projecteur de vehicule automobile

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1180026A (en) * 1966-06-13 1970-02-04 Lucas Industries Ltd Vehicle Lamps.
FR2312727A1 (fr) * 1975-05-27 1976-12-24 Cibie Projecteurs Projecteur pour vehicule automobile
EP0111579A1 (en) * 1982-12-17 1984-06-27 Ichikoh Industries Limited Vehicle headlamp
DE8310535U1 (de) * 1983-04-11 1983-09-08 Comind S.p.A., Robassomero, Torino Kraftfahrzeugscheinwerfer mit blendschutzschirm
US4882660A (en) * 1986-11-13 1989-11-21 General Motors Corporation Headlamp assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0900973A2 (de) 1997-09-06 1999-03-10 Hella KG Hueck & Co. Scheinwerfer für Fahrzeuge

Also Published As

Publication number Publication date
ES2069958T3 (es) 1995-05-16
EP0548555A1 (de) 1993-06-30
DE59201663D1 (de) 1995-04-20
DE4142536A1 (de) 1993-06-24

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