EP0306687B1 - Projecteur pour véhicule automobile - Google Patents
Projecteur pour véhicule automobile Download PDFInfo
- Publication number
- EP0306687B1 EP0306687B1 EP88112195A EP88112195A EP0306687B1 EP 0306687 B1 EP0306687 B1 EP 0306687B1 EP 88112195 A EP88112195 A EP 88112195A EP 88112195 A EP88112195 A EP 88112195A EP 0306687 B1 EP0306687 B1 EP 0306687B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- retaining spring
- bulb
- headlamp according
- legs
- 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
Links
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000511343 Chondrostoma nasus Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
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
- F21S41/10—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 invention relates to a motor vehicle headlight with an annular light bulb holder in the central opening of which a light bulb is inserted from the rear of the headlight, with a U-shaped retaining spring made of spring wire, which with the web connecting the legs of its U-shape between at least one in the direction of insertion of the incandescent lamp open bearing surface and at least one nose of the incandescent lamp holder pointing towards an incandescent lamp base is rotatably mounted about the longitudinal axis of the web between two end positions and in an end position with the free end section of at least one leg engages behind an undercut of the incandescent lamp holder and thereby with both legs presses a base flange of the incandescent lamp against an edge region of the opening of the incandescent lamp holder and bears against a stop of the incandescent lamp holder in the other end position.
- FIG. 1 and Figure 2 of the drawing Such a known headlight for vehicles is shown in Figure 1 and Figure 2 of the drawing.
- the incandescent lamp holder attached to the reflector (not shown) is sleeve-shaped and manufactured by injection molding or die casting.
- the incandescent lamp is inserted from the rear of the headlight into a central opening in the base of the incandescent lamp holder and, with its flange, lies against the floor area surrounding the opening.
- On the opposite side of the flange facing the direction of insertion of the bulb one leg of the U-shaped retaining spring made of spring wire bears against each other on opposite sides under pretension.
- One leg of the U-shaped retaining spring is longer and engages with its free end portion behind the edge of an opening of the bulb holder.
- the web connecting the legs of the retaining spring is arranged in a cross-sectionally U-shaped projection of the incandescent lamp holder, the U-shape of which opens towards the base.
- the facing inner surfaces of the U-shaped projection each have a step, the abutting surface facing the direction of insertion of the incandescent lamp serves as a bearing surface for the web of the retaining spring connecting the legs.
- a hook-shaped nose is formed on the U-shaped shoulder in the middle between the two bearing surfaces and forms the counter bearing for the retaining spring. The hook-shaped nose is so long in the light exit direction of the headlight that the retaining spring is held securely in its pivot bearing.
- the retaining spring When inserting the retaining spring, its legs must be pressed together by hand so far that the web connecting the legs describes such an arc until it reaches under the nose. Such an assembly is very cumbersome and time consuming. Therefore, the retaining spring can only be assembled simply and easily by hand and not in mass production.
- the U-shaped retaining spring When the U-shaped retaining spring is inserted, its legs are approximately radial to the axis of the incandescent lamp, point outwards and are rotated by an angle of 180 ° with respect to their end position. In this position, the retaining spring is fed to the swivel bearing by hand or automatically until its web rests on the bearing surface. The retaining spring is then pivoted into its end position about the pivot axis.
- the bulge is introduced centrally into the web of the retaining spring connecting the legs, and the sections of the web adjoining the bulge are in each case in contact with a bearing surface of the incandescent lamp holder.
- a bulge is introduced into the web of the holding spring adjacent to the legs of the holding spring, and the middle portion of the web lies against a bearing surface of the incandescent lamp holder.
- the nose has such a size and shape that it projects into the bulge of the web of the retaining spring in any position of the desired pivoting range of the retaining spring and projects beyond it and the bearing surface of the bulb holder for the retaining spring a slit opening across the back of the headlamp is formed.
- the retaining spring can be pivoted smoothly and smoothly in both embodiments.
- a further advantage is that of the bulge in the desired pivoting range of the retaining spring Underneath section of the nose is formed by a cylindrical outer surface section running approximately concentrically to the pivot axis of the retaining spring, the radius of which corresponds approximately to the depth of the bulge and the width of the nose approximately corresponds to the width of the bulge.
- the side surface facing away from the incandescent lamp base is made higher from the side surfaces of the slots, in which the retaining spring is rotatably mounted.
- the higher side surfaces serve as a stop for the web connecting the two legs.
- a wall extends radially outward from the top of the nose, the end face of which merges into a run-up slope for the bulge of the retaining spring.
- the retaining spring has such a position when it is inserted that the wall connected to the nose is arranged in the bulge and thus serves as a guide for the retaining spring.
- the known incandescent lamp holder (1 ') shown in Figure 1 and Figure 2 is sleeve-shaped and made of die-cast.
- the bulb (2 ') with its glass bulb is inserted from the rear of the bulb holder into the central opening (3') of the base of the bulb holder until the flange (4 ') surrounding the bulb base on the one surrounding the opening (3') Floor area rests.
- a U-shaped retaining spring (5 ') made of spring wire rests on opposite sides of the flange (4') under prestress.
- the web (7 ') connecting the legs (6') of the U-shaped retaining spring is mounted on the incandescent lamp holder (1 ') so as to be pivotable about the pivot axis.
- the swivel bearing is formed by a hook-shaped nose (8 ') which opens in the light exit direction and by two bearing surfaces (9') which are open in the direction of insertion of the incandescent lamp.
- the web (7 ') of the U-shaped retaining spring (5') lies on the two bearing surfaces (9 ') with one end section each.
- the two bearing surfaces (9 ') are each formed by an abutting surface of a step of opposing walls (10') and extend at an acute angle to the main extension of the retaining spring (5 ').
- the hook-shaped nose (8 ') is so long that the web (7') connecting the legs (6 ') of the U-shaped retaining spring (5') only then between the nose (8 ') and the two bearing surfaces (9 ') can be used if the two legs (6') of the U-shaped retaining spring (5 ') are pressed together and the web (7') bends sufficiently large until it reaches under the nose.
- One of the two legs (6 ') of the U-shaped retaining spring (5 ') is longer and engages behind the edge of an opening of the incandescent lamp holder (1') with an angled end section (11 ').
- the U-shaped retaining spring (5) has a bulge in the middle of its web (7) connecting the two legs (6), which bulge opens towards the base of the incandescent lamp (2).
- the bulge (15, 16) is U-shaped. Adjacent to this U-shaped section (15, 16) of the retaining spring, the web (7) bears against two bearing surfaces (9) which are formed by slots in the incandescent lamp holder (1) which open towards the rear of the headlight. A nose (8) pointing towards the bulb base is arranged between these slots.
- the nose (8) has a cylindrical lateral surface section (14) which runs concentrically to the swivel axis and partly faces the light exit opening of the headlight.
- the radius of the cylindrical lateral surface section (14) corresponds approximately to the distance from the pivot axis (12) to the inside of the web (15) of the U-shaped section of the retaining spring (5).
- the thickness of the nose (8) corresponds approximately to the distance between the two legs (16) of the U-shaped section of the retaining spring (5).
- a shoulder (17) serving as a stop is molded onto the cylindrical lateral surface section, which is a stop and a latching device for the retaining spring (5).
- the web (7) connecting the legs (6) of the U-shaped retaining spring (5) is arranged between two walls (19) running transversely to it.
- the wall (22) connected to the nose (8) has the run-on slope (23) on the side facing away from the incandescent lamp.
- the web (7) then lies against the bearing surfaces (9) and the nose (8) protrudes into the U-shaped section of the retaining spring (5) (see FIG. 5). Then the holding spring (5) is pivoted in the direction (25) about the pivot axis (12) until the web (15) of the U-shaped section of the holding spring (5) serves as a stop (17) of the nose (8). engages behind. As a result, the retaining spring (5) is held captively in the pivot bearing. After the retaining spring (5) has engaged, the legs of the retaining spring run approximately parallel to the axis of the incandescent lamp. Thus, the retaining spring does not prevent the bulb from being changed. In the fastening position of the retaining spring (5), the end sections (11) of the leg (6) bent into eyelets engage behind the hook-shaped undercuts (26) of the incandescent lamp holder (1).
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Claims (14)
- Projecteur de véhicule automobile, comportant un support annulaire (1) de lampe à incandescence, support dans l'ouverture centrale (3) duquel est introduite, par le côté arrière du projecteur, une lampe à incandescence (2); un ressort de retenue en forme de U (5) réalisé en fil à ressort, qui, par la partie intermédiaire (7) reliant ses branches (6), est monté avec possibilité de rotation entre deux positions extrêmes, autour de l'axe longitudinal (12) de la partie intermédiaire (7), ce montage permettant la rotation étant réalisé entre au moins une surface d'appui (9) ouverte dans la direction d'introduction de la lampe à incandescence (2) et au moins un nez (8) du support de lampe à incandescence (1) tourné vers le culot de la lampe à incandescence, et qui, dans une position extrême, se place, par l'extrémité libre (11) d'au moins l'une de ses branches (6), derrière une contredépouille du support de lampe (1) et pousse alors, par l'une de ses deux branches (6) un collet (4) du culot de la lampe à incandescence contre une zone marginale de l'ouverture (3) du support de lampe (1) et qui, dans l'autre position extrême, s'applique contre une butée (17) du support de lampe à incandescence (1), caractérisé par les caractéristiques suivantes :- la partie intermédiaire (7) du ressort de retenue (5), reliant les branches (6) de celui-ci, présente au moins une portion courbée en forme d'indentation (15, 16) dirigée à l'opposé des branches (6) du ressort de retenue;- la portion courbée en forme d'indentation (15, 16) est configurée quant à sa taille et à sa forme, de manière à se placer en dessous du nez (8) avec effet de retenue lors du basculement à sa position de fixation.
- Projecteur selon revendication 1, caractérisé par le fait que la portion en forme d'indentation (15, 16) est aménagée au milieu de la partie intermédiaire (7) reliant les branches (6) du ressort de retenue, et les portions de cette partie intermédiaire (7) jouxtant la portion courbée en forme d'indentation (15, 16) s'appliquent chacune contre une surface d'appui (9) du support de lampe (5).
- Projecteur selon revendication 1, caractérisé par le fait qu'une portion courbée en forme d'indentation est aménagée dans la partie intermédiaire du ressort de retenue, contre chaque branche de ce ressort, et ladite partie intermédiaire s'applique par sa partie médiane contre une surface d'appui ou surface de palier du support de lampe.
- Projecteur selon l'une des revendications précédentes, caractérisé par le fait que le nez (8) présente une taille et une forme telles que, dans chaque position de la plage de pivotement désirée du ressort de retenue (5), ce nez pénètre dans la partie courbée en forme d'indentation (15, 16) de la partie intermédiaire (7) du ressort de retenue (5) et se place par-dessus ladite portion.
- Projecteur selon l'une des revendications 1 à 4, caractérisé par le fait que la surface d'appui (9) du support de lampe (1) pour le ressort de retenue (5) est constituée par une fente s'ouvrant en direction du côté arrière du projecteur.
- Projecteur selon l'une des revendications 1 à 5, caractérisé par le fait que la portion du nez (8) en dessous de laquelle la portion courbée en forme d'indentation (15, 16) se place lorsque le ressort de retenue (5) est dans la plage de pivotement désirée est constituée par une partie de surface périphérique cylindrique (14) s'étendant à peu près concentriquement à l'axe de pivotement (12) du ressort de retenue (5), le rayon de cette partie de surface cylindrique correspondant à peu près à la profondeur de la portion courbée en forme d'indentation (15, 16).
- Projecteur selon l'une des revendications 1 à , caractérisé par le fait que la largeur du nez (8) correspond à peu près à la largeur de la portion courbée en forme d'indentation (15, 16).
- Projecteur selon l'une des revendications 1 à 7, caractérisé par le fait que, parmi les surfaces latérales des fentes en regard, dans lesquelles le ressort de retenue (5) est monté avec possibilité de pivotement, la surface latérale (20) éloignée du culot de la lampe à incandescence est réalisée plus haute.
- Projecteur selon l'une des revendications 1 à 8, caractérisé par le fait qu'une paroi (22) s'étend radialement vers l'extérieur, depuis le côté supérieur du nez (8), la surface frontale de cette paroi se raccordant géométriquement à une rampe (23) pour faire passer la portion courbée en forme d'indentation (15, 16) du ressort de retenue (5).
- Projecteur selon l'une des revendications 1 à 9, caractérisé par le fait que la partie intermédiaire (7) reliant les branches (6) du ressort de retenue (5) est agencée entre deux parois s'étendant transversalement à cette partie intermédiaire, lesdites parois étant d'une hauteur telle que leurs portions terminales libres servent d'aide d'enfilement pour le ressort de retenue (5).
- Projecteur selon l'une des revendications 1 à 10, caractérisé par le fait qu'un saillant (17) servant de butée pour le ressort de retenue (5) est formé sur la portion de surface périphérique cylindrique (14) du nez (8), ce saillant présentant une position telle que le ressort de retenue (5) puisse être manoeuvré par pivotement dans un angle d'environ 90°.
- Projecteur selon revendication 11, caractérisé par le fait que le côté du saillant (17) tourné vers la lampe à incandescence se raccorde géométriquement de manière continue à la portion de surface périphérique cylindrique (14) du nez (8).
- Projecteur selon revendication 12, caractérisé par le fait que la portion de surface périphérique cylindrique (14) du nez (8) présente des moyens d'enclenchement pour le ressort de retenue (5), lesquels sont constitués par le saillant servant de butée (17) et par un deuxième saillant (18) qui est plus bas que le premier saillant (17) par rapport auquel il présente un intervalle qui correspond sensiblement au diamètre du ressort de retenue (5).
- Projecteur selon l'une des revendications 1 à 13, caractérisé par le fait que la portion en forme d'indentation (15, 16) du ressort de retenue présente une configuration en forme de U.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3729984 | 1987-09-08 | ||
DE3729984A DE3729984C1 (de) | 1987-09-08 | 1987-09-08 | Kraftfahrzeugscheinwerfer |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0306687A2 EP0306687A2 (fr) | 1989-03-15 |
EP0306687A3 EP0306687A3 (en) | 1989-11-23 |
EP0306687B1 true EP0306687B1 (fr) | 1993-10-20 |
Family
ID=6335443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88112195A Expired - Lifetime EP0306687B1 (fr) | 1987-09-08 | 1988-07-28 | Projecteur pour véhicule automobile |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0306687B1 (fr) |
AU (1) | AU613389B2 (fr) |
DE (1) | DE3729984C1 (fr) |
ES (1) | ES2045031T3 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1241247B (it) * | 1990-06-08 | 1993-12-29 | Carello Spa | Riflettore metallico, particolarmente per proiettori di veicoli |
FR2760685B1 (fr) * | 1997-03-11 | 1999-06-04 | Aps Engineering | Ressort de maintien et compression et son application dans un dispositif d'impression compact |
DE19739116A1 (de) * | 1997-09-06 | 1999-03-11 | Hella Kg Hueck & Co | Halterung einer Lampe in einer Öffnung eines Reflektors eines Fahrzeugscheinwerfers |
DE19756456A1 (de) * | 1997-12-18 | 1999-06-24 | Hella Kg Hueck & Co | Fassungseinrichtung für eine Lampe eines Fahrzeugscheinwerfers |
EP1219888A1 (fr) | 2000-12-28 | 2002-07-03 | Automotive Lighting Italia Spa | Dispositif formant douille de lampe pour un projecteur ou pour une lampe de véhicule |
DE102010018118A1 (de) * | 2010-04-24 | 2011-10-27 | Hella Kgaa Hueck & Co. | Aufnahmevorrichtung für ein Leuchtmittel einer Beleuchtungseinrichtung |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2233486A (en) * | 1939-12-13 | 1941-03-04 | Michael P Portnow | Headlight |
DE1025989B (de) * | 1956-09-11 | 1958-03-13 | Union Sils Van De Loo & Co | Halterung fuer Gluehlampenfassungen von Scheinwerfern und Leuchten, insbesondere fuer Kraftfahrzeuge |
FR1313934A (fr) * | 1961-11-22 | 1963-01-04 | Dba Sa | Dispositif de fixation rapide de la lampe d'un projecteur automobile sur le collet de son réflecteur |
DE2557233A1 (de) * | 1975-12-19 | 1977-06-30 | Bosch Gmbh Robert | Scheinwerfer fuer kraftfahrzeuge |
FR2435664A1 (fr) * | 1978-09-11 | 1980-04-04 | Seima | Porte-lampe pour projecteur automobile |
DE8802828U1 (de) * | 1988-03-03 | 1988-04-28 | Hella KG Hueck & Co, 4780 Lippstadt | Fahrzeugscheinwerfer |
DE3831372C1 (fr) * | 1988-09-15 | 1990-03-22 | Hella Kg Hueck & Co, 4780 Lippstadt, De |
-
1987
- 1987-09-08 DE DE3729984A patent/DE3729984C1/de not_active Expired
-
1988
- 1988-07-28 ES ES88112195T patent/ES2045031T3/es not_active Expired - Lifetime
- 1988-07-28 EP EP88112195A patent/EP0306687B1/fr not_active Expired - Lifetime
- 1988-08-10 AU AU20636/88A patent/AU613389B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
DE3729984C1 (de) | 1989-02-09 |
EP0306687A2 (fr) | 1989-03-15 |
AU2063688A (en) | 1989-03-09 |
AU613389B2 (en) | 1991-08-01 |
EP0306687A3 (en) | 1989-11-23 |
ES2045031T3 (es) | 1994-01-16 |
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