EP1219888A1 - Dispositif formant douille de lampe pour un projecteur ou pour une lampe de véhicule - Google Patents

Dispositif formant douille de lampe pour un projecteur ou pour une lampe de véhicule Download PDF

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Publication number
EP1219888A1
EP1219888A1 EP00830856A EP00830856A EP1219888A1 EP 1219888 A1 EP1219888 A1 EP 1219888A1 EP 00830856 A EP00830856 A EP 00830856A EP 00830856 A EP00830856 A EP 00830856A EP 1219888 A1 EP1219888 A1 EP 1219888A1
Authority
EP
European Patent Office
Prior art keywords
lamp
branches
spring
dish
central portion
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Withdrawn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
EP00830856A
Other languages
German (de)
English (en)
Inventor
Luciano Cubito
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.)
Marelli Automotive Lighting Italy SpA
Original Assignee
Automotive Lighting Italia SpA
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 Automotive Lighting Italia SpA filed Critical Automotive Lighting Italia SpA
Priority to EP00830856A priority Critical patent/EP1219888A1/fr
Publication of EP1219888A1 publication Critical patent/EP1219888A1/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Withdrawn legal-status Critical Current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
    • F21S41/196—Wire spring attachments

Definitions

  • the present invention relates to lighting devices for motor vehicles, such as headlights or the like, of the type comprising:
  • the aforesaid U-shaped retention spring has one of its ends connected in an articulated way to the body of the dish, so that the spring is free to rotate between an inoperative position, in which its opposite end is set at a distance from the body of the dish, and an operative position, in which the said opposite end is engaged in a retention element integrated in the dish, or obtained using auxiliary components, in such a way that the spring causes the aforesaid resting element of the lamp body to press elastically against the corresponding contrast surface of the body of the dish.
  • a purpose of the invention is to provide a device of the type indicated at the beginning of the present description which is of a simple structure consisting of a small number of components, and hence economically advantageous to manufacture, and which is moreover light and which finally enables carrying-out of the operations of installation and removal of the lamp in a simple and rapid way.
  • a further purpose of the invention is to provide a device of the type referred to above which is suited to being applied on any type of lighting device in an easy and economical way and without introducing any limitation in the design of the headlight or similar light.
  • the subject of the invention is a device of the type referred to at the beginning of the present description, characterized in that the aforesaid retention spring is rigidly connected to the body of the reflector dish, adjacent to its central portion, and in that the two branches of the spring have their opposite ends free, the said branches being shaped and arranged in such a way that, in the condition of installation of the lamp, they are elastically deformed with respect to their resting condition so as to press the aforesaid resting element of the lamp against the corresponding contrast surface on the rear side of the body of the dish.
  • the principle underlying the present invention is aimed in a direction opposite to a technical prejudice that may be found in the known solutions mentioned above.
  • the retention spring is connected (rigidly, and not in an articulated way) to the body of the dish only on its central portion (for example, at least in an area corresponding to the ends of the central portion), whilst the opposite ends of the two branches of the spring are completely free, i.e., not engaged in a retention element of any type provided on the body of the dish.
  • the aforesaid two branches of the retention spring extend in two planes which are substantially parallel to one another and perpendicular to the central portion of the spring.
  • Each branch has a substantially S-shaped configuration, with a bend or elbow in contact with the resting element of the lamp.
  • the central portion of the spring has its ends driven into seats made in two appendages projecting from the rear surface of the body of the dish and made of one piece with the latter.
  • the retention spring is electrically insulated with respect to the terminals of the lamp, so that it does not perform the function of terminal in addition to the mechanical function of retention of the lamp.
  • the lamp is of a type in itself known, provided at the rear with a connector that also comprises, integrated therein, the earth contact.
  • a further important possibility afforded by the conformation described above lies in the fact that the two branches of the retention spring may be deformed in such a way as to cause them to diverge, and so that they depart from the two parallel planes in which they are set when the spring is undeformed.
  • the two branches of the spring can be rested against two lateral surfaces adjacent to the opening for receiving the lamp in such a way as to leave the said opening free to enable easy insertion of the lamp into the reflector dish or easy removal therefrom.
  • the two branches can be brought back into their parallel condition in which they cause the resting element of the lamp body to press elastically against the aforesaid contrast surface, withholding the lamp securely in its mounted condition. Consequently, the deformability of the two branches of the spring in a direction perpendicular to the two planes of lie of the branches themselves is exploited when it is necessary to divaricate the branches in order to facilitate installation and removal of the lamp. At the same time, the elastic deformability of the branches of the spring in a direction orthogonal to the previous one is exploited in order to obtain application of the force for withholding the lamp in its mounted condition.
  • the device according to the invention enables a plurality of advantages to be achieved.
  • withholding of the lamp in the mounted condition is obtained without providing, on the body of the reflector dish, any supplementary elements of engagement in addition to the connection provided in the area corresponding to the central portion of the spring.
  • this involves the advantage of rendering fabrication of the device simpler and more economical, reducing the components thereof.
  • retention of the lamp in the mounted condition is obtained by exploiting only the elastic characteristics of the material making up the spring and the configuration of the latter.
  • the spring is shaped in such a way as to render the operations of installation and removal of the lamp extremely simple and fast.
  • the device built according to the invention is able in any case to meet the international requirements contemplated for lighting devices for motor vehicles. Furthermore, the invention is compatible with any conformation of motor-vehicle headlight or similar light, including the new-generation headlights, which adopt a clear and smooth external diffuser, i.e., one of the type without any optical faceting.
  • the device in fact, does not involve the arrangement of aesthetically unattractive elements that might be visible from outside through the clear and unfaceted diffuser.
  • the number 1 designates, as a whole, the reflector dish which forms part of a headlight for a motor vehicle.
  • the drawings do not illustrate the element which is connected to the front part of the headlight and which is typically formed by a casing designed to guarantee the water tightness of the device, the said casing presenting an internal surface provided with optical prism-like facets, or else, according to a more recent trend, a completely clear and smooth surface, i.e., without any optical prism-like facets, in such a way as to be completely transparent and to make the lamp of the headlight visible from outside.
  • the body 1 of the reflector dish has a substantially concave conformation, typically that of a paraboloid, with a front surface 2, provided with a metallized reflecting layer, and a rear surface 3.
  • the body of the dish 1 has a neck 4 defining an opening 5 through which is installed the light source which consists of a lamp 6 of any known type used in lighting devices for motor vehicles.
  • the lamp 6 has a bulb and a supporting body 8 which is mounted through the opening 5 from the rear side of the dish 1.
  • the body 8 is provided with a resting disk 9 which is pushed up against a contrast surface 10 formed on the rear side of the dish 1.
  • the lamp 6 is kept in its mounted condition by a retention spring 11 consisting of a metal wire, typically made of spring steel, bent substantially into the shape of a U.
  • the spring 11 has a central portion 12 the ends of which are rigidly connected, by being driven, inside two seats 13 formed in appendages 14 made of a single piece with the reflector dish 1. From the ends of the central portion 12 of the spring 11 there extend two branches 15 that are set in two planes that are substantially parallel to one another and perpendicular to the central portion 12 (see also Figure 1). The ends of the branches 15 that are adjacent to the central portion 12 are also fixed inside the seats 13 of the appendages 14.
  • each branch 15 has a basically S-shaped configuration, with a portion 15a that branches off at right angles from the central portion 12, and two subsequent portions 15b, 15c, set to form a V, which define a bend or elbow 15d that presses the resting disk 9 of the body of the lamp against the contrast surface 10 of the reflector dish.
  • FIG. 3 of the attached drawings shows by a dashed line the configuration that each branch 15 of the spring assumes in the resting condition.
  • each branch 15 is deformed by bending in such a way that its elastic reaction determines application of a force pressing the resting disk 9 against the contrast surface 10 of the reflector dish.
  • the two branches When it is necessary to remove the lamp or to install it, in order to prevent the two branches 15 from hampering operations, the two branches are deformed in such a way as to cause them to diverge so that they depart from their respective planes of lie until they reach the condition illustrated in Figure 5, in which they are set laterally divaricated against the wall of the neck 4 of the body of the reflector dish. In this condition, the two branches 15 do not obstruct the opening 5, so that insertion or extraction of the lamp can be carried out easily and quickly. Once a lamp has again been mounted, the branches 15 can be brought back from the condition illustrated in Figure 5 into the condition illustrated in Figure 4, in which they withhold the lamp in position.
  • the ends 16 of the branches 15 are completely free, in contrast to the known solutions, in which the said ends engage corresponding retention elements provided on the reflector dish, with a consequent constructional complication.
  • the central portion 12 of the spring is simply driven into the corresponding seats 13 made in the body of the reflector dish, instead of being connected in an articulated way to the latter, as is the case in known solutions, with a consequent further constructional simplification.
  • the spring 15 is electrically insulated from the terminals of the lamp, which are both integrated, in the case of the example illustrated, in the lamellar connector provided on the rear part of the body of the lamp according to a technique which is of itself known.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP00830856A 2000-12-28 2000-12-28 Dispositif formant douille de lampe pour un projecteur ou pour une lampe de véhicule Withdrawn EP1219888A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00830856A EP1219888A1 (fr) 2000-12-28 2000-12-28 Dispositif formant douille de lampe pour un projecteur ou pour une lampe de véhicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00830856A EP1219888A1 (fr) 2000-12-28 2000-12-28 Dispositif formant douille de lampe pour un projecteur ou pour une lampe de véhicule

Publications (1)

Publication Number Publication Date
EP1219888A1 true EP1219888A1 (fr) 2002-07-03

Family

ID=8175610

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00830856A Withdrawn EP1219888A1 (fr) 2000-12-28 2000-12-28 Dispositif formant douille de lampe pour un projecteur ou pour une lampe de véhicule

Country Status (1)

Country Link
EP (1) EP1219888A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1936264A1 (fr) * 2006-12-19 2008-06-25 Hella KG Hueck & Co. Dispositif de support de lampe pour véhicules
DE102010018118A1 (de) 2010-04-24 2011-10-27 Hella Kgaa Hueck & Co. Aufnahmevorrichtung für ein Leuchtmittel einer Beleuchtungseinrichtung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025989B (de) * 1956-09-11 1958-03-13 Union Sils Van De Loo & Co Halterung fuer Gluehlampenfassungen von Scheinwerfern und Leuchten, insbesondere fuer Kraftfahrzeuge
EP0145556A1 (fr) 1983-11-30 1985-06-19 Cibie Projecteurs Dispositif de montage et de fixation d'une lampe, notamment pour projecteur d'automobile
US4670822A (en) * 1983-11-19 1987-06-02 Lucas Industries Public Limited Company Light assembly
DE3812614A1 (de) * 1987-04-16 1988-10-27 Cibie Projecteurs Lampe und lampentraeger fuer den scheinwerfer eines kraftfahrzeugs
US4811178A (en) 1987-04-21 1989-03-07 Hella Kg Hueck & Co. Headlight for vehicles
EP0306687A2 (fr) 1987-09-08 1989-03-15 Hella KG Hueck & Co. Projecteur pour véhicule automobile
FR2701539A1 (fr) * 1993-02-12 1994-08-19 Valeo Vision Dispositif d'éclairage ou de signalisation pour automobile à moyens perfectionnés de montage de la lampe.
DE19739116A1 (de) 1997-09-06 1999-03-11 Hella Kg Hueck & Co Halterung einer Lampe in einer Öffnung eines Reflektors eines Fahrzeugscheinwerfers

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025989B (de) * 1956-09-11 1958-03-13 Union Sils Van De Loo & Co Halterung fuer Gluehlampenfassungen von Scheinwerfern und Leuchten, insbesondere fuer Kraftfahrzeuge
US4670822A (en) * 1983-11-19 1987-06-02 Lucas Industries Public Limited Company Light assembly
EP0145556A1 (fr) 1983-11-30 1985-06-19 Cibie Projecteurs Dispositif de montage et de fixation d'une lampe, notamment pour projecteur d'automobile
US4614997A (en) 1983-11-30 1986-09-30 Cibie Projecteurs Lamp fixing and mounting device
DE3812614A1 (de) * 1987-04-16 1988-10-27 Cibie Projecteurs Lampe und lampentraeger fuer den scheinwerfer eines kraftfahrzeugs
US4811178A (en) 1987-04-21 1989-03-07 Hella Kg Hueck & Co. Headlight for vehicles
EP0306687A2 (fr) 1987-09-08 1989-03-15 Hella KG Hueck & Co. Projecteur pour véhicule automobile
FR2701539A1 (fr) * 1993-02-12 1994-08-19 Valeo Vision Dispositif d'éclairage ou de signalisation pour automobile à moyens perfectionnés de montage de la lampe.
DE19739116A1 (de) 1997-09-06 1999-03-11 Hella Kg Hueck & Co Halterung einer Lampe in einer Öffnung eines Reflektors eines Fahrzeugscheinwerfers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1936264A1 (fr) * 2006-12-19 2008-06-25 Hella KG Hueck & Co. Dispositif de support de lampe pour véhicules
DE102010018118A1 (de) 2010-04-24 2011-10-27 Hella Kgaa Hueck & Co. Aufnahmevorrichtung für ein Leuchtmittel einer Beleuchtungseinrichtung

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