EP0593035B1 - Dispositif de fixation d'une lampe - Google Patents
Dispositif de fixation d'une lampe Download PDFInfo
- Publication number
- EP0593035B1 EP0593035B1 EP93116567A EP93116567A EP0593035B1 EP 0593035 B1 EP0593035 B1 EP 0593035B1 EP 93116567 A EP93116567 A EP 93116567A EP 93116567 A EP93116567 A EP 93116567A EP 0593035 B1 EP0593035 B1 EP 0593035B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- claw
- projection
- bulb
- shaped
- 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
- 210000000078 claw Anatomy 0.000 claims description 34
- 238000013459 approach Methods 0.000 description 1
- 230000003287 optical effect Effects 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
- This invention relates to a reflector assembly in which a bulb is fixed in a reflector by means of a formed wire as indicated in the preamble portion of claim 1.
- a prior art bulb holding structure is known as shown in Figs. 5 to 7 (see Japanese Utility Model Publication Hei 1-164612). It is also disclosed in French Patent Application Nos. 2630193 and 2669400.
- a reflector assembly 1 includes a reflector 2 and a bulb holder set 3.
- the bulb holder set 3 includes a bulb holder 4 and a formed wire (spring) 5 for holding a bulb.
- the bulb holder 4 includes a flange 4a extended radially and edge portions 4b, 4c jutting out from the flange 4a.
- the edge portions 4b, 4c integrated with the flange 4a are fastened to the back side 2a of the reflector 2 by means of machine screws 6, 6.
- Ribs 4d, 4d are formed around the flange 4a.
- One of the ribs 4d, 4d is provided with a hook 4e elongated to the middle of the edge portion 4c.
- On the edge portion 4b is disposed a wire fixing member 4f to which the wire 5 is turnably fixed. A free end 5a of the wire 5 is caught and held by the hook 4e.
- the bulb holder 4 is provided with an internal flange 7 jutting out to the center of the bulb holder 4 inside the reflector 2.
- a bulb 8 is inserted in a hole 7a formed inside the internal flange 7.
- the bulb 8 includes a lighting portion 8a, a base 8b to which the lighting portion 8a is fastened, and a flange 8c disposed on the base 8b.
- the flange 8c is fixed between the internal flange 7 and the formed wire 5.
- the free end 5a of the formed wire 5 is disengaged from the hook 4e by moving the free end 5a in a direction of the arrow A as shown in Fig. 7.
- the free end 5a is engaged with the hook 4e by moving the free end 5a in a direction of the arrow B.
- the formed wire 5 is unstably placed in such a manner that the middle portion of the formed wire 5 is fixed to the member 4f and the free end 5a is engaged with the hook 4e by means of only the elasticity of the formed wire 5.
- annular convexity 21 is disposed on the back surface of a reflector 20 through which a hole 22 is cut.
- a pair of spring fixing projections 23, 23 adjacent to each other are formed on the annular convexity 21.
- a spring catching projection 24 opposite to the projections 23, 23 is also formed thereon.
- In the catching projection 24 are formed an inclined face 25 for catching a spring, a hollow 26 for holding the spring, and an inclined face 27 extended from the hollow 26 for releasing the spring.
- a short length portion of a rectangular spring 28 is turnably fixed to the projections 23, 23.
- the long length portions 28b, 28b of the rectangular spring 28 is bent at its middle points 28c, 28c.
- the free end portion of the spring 28 is further provided with portions 28e, 28e bent in the same direction as the long length portions 28b, 28b with respect to points 28d, 28d.
- the end linking the portions 28e, 28e, i.e., the other short length portion of the rectangular spring 28 serves as a portion 28f to be caught by the projection 24.
- a cylindrical object 29 is inserted into the hole 22 so that a flange 29a of the object 29 is brought into contact with the annular convexity 21.
- the short length portion 28f is brought into contact with the inclined guide face 25 and, at the same time, the middle points 28c, 28c are brought into contact with the bottom 29b of the cylindrical object 29 as shown in Fig. 9(b).
- the points 28d, 28d are pressed with force F toward the guide face 25, so that the short length portion 28f is guided along the face 25 and held in the hollow 26 as shown in Fig. 9(c).
- the cylindrical object 29 is stably placed because the long length portions 28b, 28b are firmly pressing the bottom 29b of the object 29.
- the points 28d, 28d must be pressed with great force in order to bend the spring 28 less than an angle ⁇ shown in Fig. 9(c) and release the short length portion 28f from the hollow 26.
- said document FR-A-2 626 062 discloses an alternative spring holding projection which isU-shaped formed by means of three side walls. Said spring holding projection opens similarly to that of figure 8 in a direction towards a spring fixing portion.
- the spring holding projection opens at a top area, at an inner area directed towards said spring fixing portion and is widely opened at the side walls extending in parallel to the curved portion of the spring due to an inclined guide means formed in said spring holding projection.
- a claw is provided connected perpendicular to the side wall opposite said spring fixing portion, wherein said claw is contoured to open in a direction toward said spring fixing portion.
- a reflector assembly comprising the features of claim 1.
- the tip of the claw is located below the outer face of the projection when a lighting portion of said bulb defines a top area.
- the U-shaped concavity is enclosed by walls contiguous to the side grooves and opposite to each other with respect to the claw and by a wall linking the side walls to each other;
- the releasing guide means includes first and second inclined guide faces, the first inclined guide face being formed so that the linking wall is inclined from the base of the claw to the outer face of the projection and in an opposite direction to the claw, the second inclined guide face being formed so that a part of either of the side walls is inclined from a place facing a spring holding portion of the claw to the outer face and in a direction approaching the other side wall; the U-shaped portion of the spring is disengaged from the spring holding portion of the claw and is guided along the first and second guide faces by pressing the U-shaped push portion of the spring against the elasticity of the spring.
- a third inclined guide face is formed so that a part of the other side wall is inclined from the bottom of the spring holding concavity to the outer face of the projection in a direction opposite to the second guide face.
- the spring is made up of an erected portion bent in the opposite direction to the curved portion, and a folded portion turned up from the tip of the erected portion to a point corresponding to the root of the erected portion, the U-shaped portion of the spring being contiguous to the folded portion, the push portion being formed at a joint between the erected and folded portions.
- the projection juts out in a direction perpendicular to the flange of the bulb; the erected and folded portions are elongated in a direction in which the projection juts out when the U-shaped portion of the spring is brought into contact with the spring catching guide face and when the U-shaped portion is held by the spring holding portion of the claw; the push portion is pressed in a direction perpendicular to the flange of the bulb in order to engage the U-shaped portion with the claw or disengage it from the spring holding portion.
- Fig. 1(a) is a sectional view of a bulb holding structure according to the invention and Fig. 1(b) is a front view of a spring holding portion of Fig. 1(a).
- Fig. 2 is a sectional view showing a spring released from the spring holding portion.
- Fig. 3 is a top view of Fig. (2).
- Figs. 4(a)-(c), (a')-(c') show the action of the bulb holding structure shown in Figs. 1 to 3.
- Fig. 5 is a sectional view of a conventional bulb holding structure.
- Fig. 6 is a bottom view of Fig. 5.
- Fig. 7 is an enlarged view of a hook of Fig. 6.
- Fig. 8 is a perspective view of another conventional bulb holding structure.
- Figs. 9(a)-(f) show the action of the bulb holding structure of Fig. 8.
- a reflector assembly 1 includes a reflector 2 and a bulb holder set 3.
- the bulb holder set 3 includes a cylindrical holder 4 disposed in the reflector 2 and a spring (formed wire) 10 for holding a bulb.
- On the bottom face of the holder 4 are formed a flange 4a extended radially and edge portions 4b, 4c jutting out from the flange 4a and integrated with the flange 4a.
- the edge portions 4b, 4c are fixed to the back face 2a of the reflector 2 by means of machine screws 6, 6.
- On the upper face of the holder 4 (exposed in the same direction as the reflecting surface of the reflector 2) is formed an internal flange 7 extended toward the center of the holder 4.
- a bulb inserting hole 7a is made inside the internal flange 7.
- a bulb 8 is held by the bulb holder set 3.
- the bulb 8 includes a lighting portion 8a to be inserted into the hole 7a, having a filament, a base 8b by which the lighting portion 8a is supported, and a flange 8c integrated with the base 8b and brought into contact with the holder flange 4a.
- the spring (formed wire) 10 has right and left linear portions D, D and a portion C linking the free ends of the linear portions with each other so that it is formed into a U-shape as a plane view.
- the spring 10 further has portions 10a, 10a to be fixed to the holder 4 at the base side of the spring 10, each on the same axial line, a U-shaped portion 10b to be held by the holder 4 at the free end side of the spring 10, a push portion 10c, an erected portion 10d, a folded portion 10e, and a curved portion 10f formed at the middle of the spring 10 to be brought into contact with the flange 7.
- the erected portion 10d is formed in such a manner that a part of the linear portion D is rectangularly bent in the opposite direction to the curved portion 10f.
- the folded portion 10e is folded from the tip of the erected portion 10d so as to have the roughly same length as the erected portion 10d.
- a linking portion between the erected and folded portions 10d, 10e serves as the push portion 10c.
- the U-shaped portion 10b to be held by the holder 4 is contiguous to the folded portion 10e.
- a projection 12 jutting out in a direction perpendicular to the flange 4a.
- the pair of members 11, 11 and the projection 12 are located opposite to each other with respect to the hole 7a.
- the base ends 10a, 10a of the spring 10 are turnably fixed in the members 11, 11.
- the projection 12 is further provided with a projection 12a jutting out toward the edge portion 4c.
- a nearly U-shaped concavity 13 for catching and holding the spring 10.
- the U-shaped concavity 13 as a part of the back of the reflector 1 is open toward the edge portion 4c and the push portion 10c.
- a spring holding claw 14 integrated with the holder 4 is formed in the concavity 13.
- the summit of the claw 14 is located below (inner in the drawings) the outer face 12b of the projection 12.
- the spring catching concavity 13 is composed of a pair of side grooves 13a, 13b made in the outer face 12b (perpendicular to the flange 4a) of the projection 12 and a groove 13c linking the side grooves 13a, 13b with each other.
- the outer face 12 is exposed in a direction opposite to the members 11, 11.
- the side grooves 13a, 13b are elongated in a direction in which the push portion 10c of the spring 10 is pressed or in a direction parallel to the optical axis of the bulb 8.
- the other ends of the side grooves 13a, 13b are open toward the push portion 10c.
- the concavity 13 is surrounded by walls 13d, 13e of the side grooves 13a, 13b opposite to each other with respect to the claw 14 and a wall 13f (an inclined guide face 15 for releasing the spring 10, which will be described below) linking the walls 13d, 13e with each other.
- the claw 14 In the claw 14 are formed a portion 14a located on the side of the reflector 2 for holding the U-shaped portion 10b and an inclined guide face 14b located on the opposite side to the spring holding portion 14a for catching and guiding the U-shaped portion 10b.
- the linkage part 10b' of the U-shaped portion 10b of the spring 10 is engaged with the spring holding portion 14a and held thereby.
- the flange 8c of the bulb 8 is sandwiched between the flange 4a of the holder 4 and the curved portion 10f of the spring 10 and firmly placed in the reflector when the linkage part 10b' is held by the claw 14.
- the releasing means includes first, second, and third inclined guide faces 15 to 17.
- the first inclined guide face 15 is formed on the bottom side of the concavity 13 or on the wall 13f
- the second inclined guide face 16 is formed on a part of the wall 13d corresponding the linking groove 13c
- the third inclined guide wall 17 is formed on a part of the wall 13e corresponding to the linking groove 13c.
- the first inclined guide face 15 is inclined from the bottom of the spring holding portion 14a in a direction in which the linkage part 10b' goes away from the claw 14.
- the first inclined guide face 15 is extended longer than the inclined guide face 14b and is inclined in the same direction as the guide face 14b.
- the second inclined guide face 16 is inclined from a point of the wall 13d in a direction in which the U-shaped portion 10b approaches the wall 13e.
- the third inclined guide face 17 is inclined from the bottom of the concavity 13 in a direction in which the U-shaped portion 10b goes away from the wall 13d.
- the bulb 8 is first inserted into the hole 7a of the inner flange 7, and then the free end portion of the spring 10 is turned to the reflector 2.
- the linkage part 10b' of the U-shaped portion 10b of the spring 10 is brought into contact with the inclined guide face 14b of the claw 14 so that the erected and folded portions 10d, 10e of the spring 10 are directed in a direction where the projection 12 juts out or in a direction perpendicular to the flange 4a.
- the linkage part 10b' is caught by the holding portion 14a and the erected and folded portions 10d, 10e of the spring 10 are directed in the direction perpendicular to the flange 4a.
- the push portion 10c is pressed toward the guide faces 15, 16 against the elasticity F of the spring 10 with the force P1 of a finger 18 as shown in Figs. 4(a), 4(a').
- the linkage part 10b' is released from the holding portion 14a and is guided along the guide faces 15, 16, 17 to the outer front face 12b of the projection 12 as shown in Figs. 4(b), 4(b').
- the inclined guide means at least only the guide face 15 will serve to release the linkage part 10b' and guide it.
- the linkage part 10b' When pressing is stopped, the linkage part 10b' is automatically moved and guided along the outer front face 12b by the elasticity F. As a result, the linkage part 10b' is released from the projection 12 as shown in Fig. 2, so that the bulb 8 can be removed from the reflector 4.
- the erected and folded portions 10d, 10e of the spring 10 are directed perpendicularly to the flange 4a when the linkage part 10b' of the spring 10 is brought into contact with the inclined guide face 14b or when the linkage part 10b' is engaged with the holding portion 14a. Therefore, since the push portion 10c is pressed perpendicularly to the flange 4a in order to hold the U-shaped portion 10b of the spring 10 in the holding portion 14a or release it therefrom, the pressing for holding and releasing the spring 10 is always carried out in the direction perpendicular to the flange 4a. This results in a simple operation.
- the free end port ion of the spring is easily caught by or released from the holding portion disposed on the back side of the reflector with slight force and without observing the free end portion. Further, the spring is stably placed in the reflector.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
Claims (6)
- Groupe réflecteur comportant un trou d'insertion d'ampoule (7a) aménagé au moyen d'un réflecteur (2), d'une saillie de maintien du ressort (12) et d'une partie de fixation du ressort (11), chacun étant disposé sur un côté arrière (2c) dudit réflecteur (2) sur des côtés opposés dudit trou d'insertion d'ampoule, ladite saillie de maintien de ressort possédant une griffe de maintien de ressort (14), un ressort (10) possédant une extrémité de base (10a) fixée de manière pivotante à ladite partie de fixation du ressort (11), une extrémité libre devant être reliée à ou détachée de ladite saillie de maintien du ressort (12), une partie (l0b) en forme de U aménagée au niveau de ladite extrémité libre du ressort, ladite partie en forme de U étant retenue et maintenue par ladite griffe (14), et une partie incurvée (10f) étant aménagée au centre dudit ressort, pour la fixation d'une ampoule (8) entre ladite partie incurvée et le côté arrière dudit réflecteur, une surface de guidage de retenue (14b) étant aménagée dans ladite saillie de maintien de ressort (12) pour le guidage de ladite partie en forme de U (10b) jusqu'à la griffe (14), et des moyens de guidage (15, 16, 17) inclinés étant aménagés dans ladite saillie de maintien de ressort pour la libération de ladite saillie de maintien du ressort de ladite griffe, caractérisé en ce qu'une concavité (13) en forme de U est aménagée dans une surface extérieure (12b) de ladite saillie de maintien du ressort, ladite surface extérieure (12b) étant dans un sens opposé à celui de la partie de fixation du ressort (11), ladite concavité (13) comportant une paire de rainures latérales (13a, 13b) allongées selon une direction dans laquelle une partie de poussée en forme de U (10c) est pressée de manière à engager ladite griffe (14) et une rainure de liaison (13c) reliant les extrémités desdites rainures latérales l'une à l'autre, dans lequel les autres extrémités desdites rainures latérales opposées à ladite rainure latérale sont ouvertes et ladite griffe (14) est aménagée dans ladite concavité (13) et en ce que ledit moyen de guidage incliné comporte une surface de guidage inclinée (15) qui s'étend du fond de ladite concavité (13) et est inclinée dans le même sens que ladite surface de guidage de maintien (14b).
- Groupe réflecteur selon la revendication 1, caractérisé en ce que le bout de ladite griffe (14) est située sous ladite surface extérieure (12b) de la saillie lorsqu'une partie éclairante (8a) de ladite ampoule définit une zone supérieure.
- Groupe réflecteur selon la revendication 2, caractérisé en ce que ladite concavité (13) en forme de U est enfermée par des parois contiguës auxdites rainures latérales (13a, 13b) et opposées l'une à l'autre par rapport à ladite griffe (14) et par une paroi reliant lesdites parois latérales (13a, 13b) l'une à l'autre ;ledit moyen de guidage de libération comporte des première et deuxième surfaces de guidage inclinées (15, 16), ladite première surface de guidage inclinée (15) étant aménagée de sorte que ladite paroi de liaison est inclinée de la base de ladite griffe (14) vers la surface extérieure (12b) de la saillie et dans un sens opposé à celui de la griffe (14), ladite deuxième surface de guidage inclinée (16) étant aménagée de sorte qu'une section de chacune desdites parois latérales (13a, 13b) est inclinée d'un endroit faisant face à une partie de maintien de ressort de ladite griffe (14) vers ladite surface extérieure et dans un sens s'approchant de l'autre paroi latérale ; etladite partie en U (l0b) du ressort (10) est désenagée de ladite partie de maintien du ressort de la griffe (14) et est guidée le long desdites première et deuxième surfaces de guidage (15, 16) par pression de ladite partie de poussée (10c) en forme de U du ressort (10) contre l'élasticité dudit ressort (10).
- Groupe réflecteur selon la revendication 3, caractérisé en ce qu'une troisième surface de guidage inclinée (17) est aménagée de sorte qu'une section de l'autre paroi latérale est inclinée du fond de ladite cavité de maintien du ressort (13) vers la surface extérieure (12b) de la saillie dans un sens opposé à celui de ladite deuxième surface de guidage (16).
- Groupe réflecteur selon les revendications 1 à 4, caractérisé en ce que ledit ressort (10) comporte une partie redressée (10d) courbée dans le sens opposé à celui de ladite partie courbée (10f) et une partie pliée (10e) relevée depuis le bout de ladite partie redressée (10d) vers un point correspondant à la racine de ladite partie redressée (10d), ladite partie en forme de U (10b) du ressort (10) étant contiguë à ladite partie pliée (10e), ladite partie de poussée (10c) étant aménagée au niveau d'une articulation entre lesdites parties redressée et pliée (10d, 10e).
- Groupe réflecteur selon la revendication 5, caractérisé en ce que ladite saillie (12) avance selon une direction perpendiculaire à une bride (8c) de l'ampoule (8), lesdites parties redressée et pliée (10d, 10e) sont allongées selon une direction dans laquelle ladite saillie avance lorsque ladite partie en forme de U (10b) du ressort (10) est amenée en contact avec ladite surface de guidage (14b) de retenue du ressort et lorsque ladite partie en forme de U (10b) est maintenue par ladite partie de maintien de ressort (10c) de la griffe (14) et ladite partie de poussée (10c) est pressée selon une direction perpendiculaire à ladite bride (8c) de l'ampoule (8) afin d'engager ladite partie en forme de U (10b) avec ladite griffe ou de désengager celle-ci de ladite partie de retenue de ressort (14a).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP71608/92 | 1992-10-14 | ||
| JP1992071608U JP2571320Y2 (ja) | 1992-10-14 | 1992-10-14 | バルブ保持構造 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0593035A2 EP0593035A2 (fr) | 1994-04-20 |
| EP0593035A3 EP0593035A3 (en) | 1994-06-01 |
| EP0593035B1 true EP0593035B1 (fr) | 1997-04-23 |
Family
ID=13465539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93116567A Expired - Lifetime EP0593035B1 (fr) | 1992-10-14 | 1993-10-13 | Dispositif de fixation d'une lampe |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0593035B1 (fr) |
| JP (1) | JP2571320Y2 (fr) |
| DE (1) | DE69310078T2 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6363422B2 (ja) * | 2014-08-04 | 2018-07-25 | 株式会社アクシー | フィルタ |
| FR3033146B1 (fr) * | 2015-02-26 | 2017-02-17 | Peugeot Citroen Automobiles Sa | Dispositif de support a moyen de blocage de fil ressort d'immobilisation d'ampoule, pour un bloc optique de vehicule |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3713330C2 (de) * | 1987-04-21 | 1993-12-23 | Hella Kg Hueck & Co | Glühlampenhalterung für Kraftfahrzeugscheinwerfer |
-
1992
- 1992-10-14 JP JP1992071608U patent/JP2571320Y2/ja not_active Expired - Fee Related
-
1993
- 1993-10-13 DE DE69310078T patent/DE69310078T2/de not_active Expired - Fee Related
- 1993-10-13 EP EP93116567A patent/EP0593035B1/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0636125U (ja) | 1994-05-13 |
| EP0593035A2 (fr) | 1994-04-20 |
| JP2571320Y2 (ja) | 1998-05-18 |
| DE69310078T2 (de) | 1997-07-31 |
| DE69310078D1 (de) | 1997-05-28 |
| EP0593035A3 (en) | 1994-06-01 |
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