EP0696704A1 - Dispositif de fixation d'une lampe dans l'orifice d'un réflecteur de phare de véhicule - Google Patents

Dispositif de fixation d'une lampe dans l'orifice d'un réflecteur de phare de véhicule Download PDF

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Publication number
EP0696704A1
EP0696704A1 EP95111947A EP95111947A EP0696704A1 EP 0696704 A1 EP0696704 A1 EP 0696704A1 EP 95111947 A EP95111947 A EP 95111947A EP 95111947 A EP95111947 A EP 95111947A EP 0696704 A1 EP0696704 A1 EP 0696704A1
Authority
EP
European Patent Office
Prior art keywords
reflector
lamp
collar
arrangement according
base
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Withdrawn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
EP95111947A
Other languages
German (de)
English (en)
Inventor
Joachim Juth
Franz Kathmann
Wilhelm Schatka
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 EP0696704A1 publication Critical patent/EP0696704A1/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Withdrawn legal-status Critical Current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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders

Definitions

  • the invention relates to an arrangement for fastening a lamp in a reflector opening of a vehicle headlight, with a collar made of sheet metal and surrounding the reflector opening, in which the lamp can be inserted from the outside of the reflector and with its base can be placed on a support surface. with attached to the collar holding elements, between which and the support surface of the base can be held in the direction of insertion and of which at least one holding element is resilient, automatically engages behind the base after insertion of the lamp and a handle serving to release the connection between base and reflector has, which can be pressed radially to the direction of insertion outwards.
  • the headlight has a bowl-shaped reflector with a reflector opening, which serves to receive a lamp that can be inserted from the outer side of the headlight.
  • the reflector opening is made in the bottom of a shell-shaped receiving part, which consists of rigid material and is fastened in a receiving opening of the reflector.
  • the peripheral side wall of the bowl-shaped receiving part is directed with its free edge against the direction of insertion of the lamp, the side wall on the back of the reflector being seen as a collar surrounding the reflector opening.
  • the placed in the bottom of the bowl-shaped receiving part The dimensions of the reflector opening are substantially smaller than the bottom of the receiving part, and thus there remains an edge region of the bottom surrounding the reflector opening, which serves as a support surface for a base plate of the lamp on the side facing the direction of insertion.
  • Positioning tabs protrude radially outward from the base plate. The positioning tabs engage in corresponding recesses in the base.
  • a holding element is attached to the collar on diametrically opposite sides. The holding elements engage behind the base plate, so that the base plate is held axially between them and the support surface of the separate receiving part.
  • One holding element is rigid, while the other holding element is designed to be resilient radially to the lamp axis.
  • the rigid holding element is a tongue cut out of the collar of the receiving part and bent out radially inward to the lamp axis. Since the tongue is made in one piece with the receiving part consisting of rigid material, the base plate with an edge section is to be inserted between the free end of the rigid tongue and the contact surface of the receiving part.
  • the resilient holding element is a separate tongue made of spring sheet metal, which is bent in a U-shape around a bending line running transversely to its longitudinal extent. The U-shaped tongue is placed with the free end of its legs ahead on the collar of the receiving part and fastened to the collar with the outer leg, while the other leg projects into the interior of the collar.
  • the leg protruding into the collar rests with a contact surface under prestress on an edge section of the base plate of the lamp and presses the base plate against the support surface of the receiving part.
  • the leg of the resilient tongue resting on the base plate runs obliquely outwards to the web connecting the legs, and thus its side surface facing the lamp axis serves as a run-up surface for the base plate.
  • the base plate slides along the contact surface of the resilient tongue until it automatically engages behind the base plate with a bend at its free end and presses it against the support surface of the receiving part.
  • the U-shaped end section of the resilient tongue projecting outward from the collar serves as a handle.
  • the position of the lamp to the reflecting surface of the reflector depends on the position of the receiving part inserted into the receiving opening of the reflector, and a sufficiently precise position of the receiving part of the reflector is only secure if the receiving part is in front the attachment to the reflector is aligned with the reflector. Alignment of the receiving part is necessary because otherwise existing tolerances would add up between the contact surface of the receiving part and the reflecting surface of the reflector.
  • the receiving part must be rigidly connected to the reflector, so that a rattle-free tight fit of the receiving part of the reflector is guaranteed.
  • the resilient tongue is a separate part, which must be attached to the shell-shaped receiving part made of rigid material.
  • the shell-shaped receiving part consists of sheet metal, this is expediently not a spring plate, since the shell-shaped one Receiving part would have to be produced in the deep-drawing process.
  • the reflector opening is punched out of the bottom of the deep-drawn receiving part.
  • the resilient tongue presses the base plate only on its side against the support surface of the receiving part, while the base plate on the side of the rigid tongue lifts off the support surface and is pressed against the free end of the tongue. For this reason, too, an exact fixation of the lamp to the reflecting surface of the reflector and a rattle-free tight fit of the lamp are not certain.
  • the collar consists of an annularly bent sheet metal strip, a very hard one can also be used to manufacture it Spring plate can be used.
  • the collar could not be made from very hard spring steel using the deep-drawing process.
  • the lamp With a collar made of a hard spring plate, the lamp can be securely held on the reflector.
  • the collar can be used both with a sheet metal and with a plastic reflector.
  • the holding elements can be molded onto the edge of the collar directed in or against the direction of insertion and can thus be made as wide and long as desired.
  • the two free end sections of the sheet metal strip adjoin one another. It is advantageous here if the two free end sections have cut-out and interlocking connecting elements. Such a connection is easy and simple to produce.
  • the connecting elements can consist of a tab and a hole.
  • the attachment of the collar to the rear of the reflector is particularly advantageous if the collar can be guided through openings in the reflector by means of holding tabs, the holding tabs engaging behind the openings in the reflector.
  • the reflection surface of the reflector cannot be damaged.
  • the assembly is simple and easy to carry out.
  • both holding elements are resilient tongues which have a bend towards the lamp axis and which serve to reach behind the base of the lamp. This makes inserting the lamp into the reflector opening simple and easy, and the base of the incandescent lamp is secure at all contact points of the support surface.
  • At least one of the resilient tongues is connected to the edge of the collar directed towards the reflector and its free end section, which points counter to the direction of insertion, serves as a handle. It is furthermore expedient if the resilient tongue with its end section directed towards the reflector is bent in a U-shape around a bending line running transversely to its direction of insertion and engages with this section in an opening of the reflector. As a result, the resilient tongue can rest against the base of the lamp with a sufficiently large radial spring travel with a large preload.
  • the connection between the resilient tongue and the base of the lamp is simple and easy to release and a secure locking of the lamp is also safe after repeated lamp changes.
  • the resilient tongue does not spring radially inward even when the lamp is removed if the opening of the reflector has a radially outwardly directed edge section which serves as a stop for the resilient tongue provided with the handle.
  • the handle of the resilient tongue is particularly easily accessible if the resilient tongue with its free end section serving as a handle projects beyond the free edge of the collar.
  • the collar on its side diametrically opposite the handle has a resilient tongue which is cut free from the edge section adjacent to the reflector, points with its free end section in the direction of insertion of the lamp and has the bend at its free end section.
  • a resilient tongue which is cut free from the edge section adjacent to the reflector, points with its free end section in the direction of insertion of the lamp and has the bend at its free end section.
  • the resilient tongues each have a mutually diverging contact surface or run-up surface both in and counter to the direction of insertion. This ensures simple and easy assembly and disassembly as well as a secure tight fit of the lamp.
  • a reflector (4) of an additional headlight for vehicles is shown in a partial view in FIG.
  • the reflector (4) is made of sheet metal and has a bowl-shaped shape.
  • the reflector (4) has a flattened portion (25) on the upper and lower side of the shell, of which only the lower one is shown.
  • the lower flattening (25) runs obliquely downwards towards the front of the reflector (4).
  • a depression (26) is made in the lower flattening (25), the bottom of which is in a horizontal plane and has a reflector opening (2) for receiving a lamp (1).
  • a positioning tab (27) is attached to the diametrically opposite edges of the reflector opening (2) and is bent outwards from that of the reflector opening (2).
  • the lamp (1) with its glass bulb is inserted into the reflector opening (2) from the lower side of the reflector (4). After the lamp (1) has been inserted, it rests on a support surface (6) of the reflector (4) with a base plate (29) surrounding the base (5).
  • the support surface (6) is defined by three support points (30) evenly distributed around the reflector opening (3).
  • the positioning tabs (27) engage in correspondingly designed recesses on the free edge of the base plate (29).
  • the lamp (1) is fixed both axially and radially as a result of this and because the base plate (29) bears against the support surface (6) of the reflector (4).
  • the positioning tabs (27) protrude far beyond the base plate (29) with their free end section and serve as a threading aid for the lamp (1) with their free end section.
  • the lamp (1) can be threaded particularly easily if the positioning tabs (27) taper at their free end section towards the free end and / or with their side surfaces facing one another diverging from one another in the opposite direction to the direction of insertion (10) of the lamp (1).
  • the collar (3) is a sheet metal strip punched out of a sheet metal blank.
  • the sheet metal plate is a spring plate and thus the collar (3) is in one piece with resilient holding elements (7, 8) executed.
  • the sheet metal strip is bent around bending lines (11) extending transversely to its longitudinal extent to form the annular collar (3).
  • the collar (3) abuts against one another at its free end sections and has connecting elements (12) at the end sections.
  • a tab formed on one end section of the collar (3) and a hole made in the other end section serve as connecting elements (12).
  • the tab is pushed through the hole and bent with the end portion protruding from the hole.
  • the collar (3) is thus firmly connected to one another at its abutting end sections.
  • the collar (3) has four molded-on retaining tabs (13) on the edge resting on the reflector (4), each of which has a detent lug (28) cut out and bent out of the retaining tabs (13).
  • the collar (3) is pushed from the outside of the reflector (4) with its retaining tabs (13) through openings (14) in the reflector (4) until the catches (28) engage behind the openings (14) in a self-locking manner.
  • the holding elements (7, 8) made in one piece with the collar (3) are resilient tongues.
  • the resilient tongues are each arranged between two holding lugs (13) and, together with the adjacent holding lugs (13), are arranged on diametrically opposite sides of the rectangular collar (3).
  • a bend (16) is made radially towards the lamp axis (15), through which both resilient tongues (7, 8) a bearing surface (23) bearing against the edge of the base plate (29) under prestress. and have a run-up surface (22) for the lamp (1).
  • the run-up surfaces (22) run diverging from one another in the opposite direction of insertion (10) of the lamp.
  • the collar (3) has, in the area of the resilient tongue (8), a tab (21) directed against the direction of insertion, in which the root of the tongue (8) lies.
  • the resilient tongue (8) is formed by two slots punched out of the collar (3) and extends approximately to the base plate (29) towards its free end.
  • the resilient tongue (7) is formed on the edge of the collar (3) lying in one plane and on the reflector (4) and is bent and points at a distance from this edge about a bending line (18) against the direction of insertion (10) in the area of the bending line (18) has a U-shaped end section (17) which passes through an opening (19) of the reflector (4).
  • the free leg of the U-shaped end section (17) merges into the bend (16) and towards its free end into the handle (9), which extends far beyond the free edge of the collar (3).
  • the base plate (29) When the handle (9) is pressed radially outwards, the base plate (29) is released from the engagement of the bend (16) of the resilient tongue (7) and the lamp (1) can be removed from the reflector opening (2).
  • the U-shaped end section (17) of the resilient tongue (7) lies with its free leg on the radially outwardly directed edge section (20) of the opening (19) of the reflector (4).
  • the resilient tongue (7) can rest against the base plate (29) with a large spring force and nevertheless it does not spring up very far radially inwards after the lamp (1) has been removed from the reflector opening (2).
  • a tab serving as a flat plug connection (32), which is bent radially outwards.
  • the positioning tabs (27) first engage in the corresponding recesses in the base plate (29). Then the base plate (29) slides with his along the outer edge on the run-up surfaces (22) of the two resilient tongues (7, 8). The two tongues (7, 8) spring radially outwards until they engage behind the base plate (29) with their contact surfaces (23) and bear against the base plate (29) under pretension.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP95111947A 1994-08-11 1995-07-29 Dispositif de fixation d'une lampe dans l'orifice d'un réflecteur de phare de véhicule Withdrawn EP0696704A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4428440 1994-08-11
DE4428440A DE4428440C1 (de) 1994-08-11 1994-08-11 Halterung einer Lampe in einer Reflektoröffnung eines Fahrzeug-Scheinwerfers

Publications (1)

Publication Number Publication Date
EP0696704A1 true EP0696704A1 (fr) 1996-02-14

Family

ID=6525438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111947A Withdrawn EP0696704A1 (fr) 1994-08-11 1995-07-29 Dispositif de fixation d'une lampe dans l'orifice d'un réflecteur de phare de véhicule

Country Status (2)

Country Link
EP (1) EP0696704A1 (fr)
DE (1) DE4428440C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2790063A1 (fr) 1999-02-22 2000-08-25 Valeo Vision Projecteur de vehicule automobile comportant des moyens perfectionnes de retenue de lampe

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2768493A1 (fr) * 1997-09-15 1999-03-19 Holophane Systeme optique a porte-lampe pour phare de vehicule
DE102004050680B4 (de) * 2004-10-18 2017-11-23 Volkswagen Ag Reflektor mit einer Glühlampenfassung für einen Fahrzeugscheinwerfer
DE102010018118A1 (de) * 2010-04-24 2011-10-27 Hella Kgaa Hueck & Co. Aufnahmevorrichtung für ein Leuchtmittel einer Beleuchtungseinrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE19519E (en) * 1935-04-09 douglas
FR2176898A1 (fr) * 1972-03-17 1973-11-02 Lucas Electrical Co Ltd
DE2853227A1 (de) 1978-12-09 1980-06-19 Daimler Benz Ag Befestigung einer gluehfadenlampe an einem reflektor eines fahrzeugscheinwerfers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE19519E (en) * 1935-04-09 douglas
FR2176898A1 (fr) * 1972-03-17 1973-11-02 Lucas Electrical Co Ltd
DE2853227A1 (de) 1978-12-09 1980-06-19 Daimler Benz Ag Befestigung einer gluehfadenlampe an einem reflektor eines fahrzeugscheinwerfers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2790063A1 (fr) 1999-02-22 2000-08-25 Valeo Vision Projecteur de vehicule automobile comportant des moyens perfectionnes de retenue de lampe

Also Published As

Publication number Publication date
DE4428440C1 (de) 1995-10-26

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