EP0593035B1 - Lampenbefestigung - Google Patents

Lampenbefestigung Download PDF

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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
Application number
EP93116567A
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English (en)
French (fr)
Other versions
EP0593035A3 (en
EP0593035A2 (de
Inventor
Akira C/O Ichikoh Industries Ltd. Chikada
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.)
Ichikoh Industries Ltd
Original Assignee
Ichikoh Industries Ltd
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 Ichikoh Industries Ltd filed Critical Ichikoh Industries Ltd
Publication of EP0593035A2 publication Critical patent/EP0593035A2/de
Publication of EP0593035A3 publication Critical patent/EP0593035A3/en
Application granted granted Critical
Publication of EP0593035B1 publication Critical patent/EP0593035B1/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
    • F21S41/10—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)

  1. Reflektoranordnung mit einer Lampenkolben-Einsatzöffnung (7a), die sich durch einen Reflektor (2) erstreckt, einen Feder-Haltevorsprung (12) und einen Feder-Befestigungsabschnitt (11), die beide auf einer Rückseite (2c) des Reflektors (2) auf gegenüberliegenden Seiten der Lampenkolben-Einsatzöffnung angeordnet sind, wobei der Feder-Haltevorsprung eine Feder-Halteklaue (14), mit einer Feder (10), die ein Basisende (10a), das drehbar an dem Feder-Befestigungsabschnitt (11) befestigt ist, ein freies Ende zum Verbinden mit oder zum Lösen von dem Feder-Haltevorsprung (12) sowie einen U-förmigen Abschnitt (10b) aufweist, der an dem freien Ende der Feder ausgebildet ist, wobei der U-förmige Abschnitt durch die Klaue (14) ergriffen und festgehalten ist, und mit einem gekrümmten Abschnitt (10f), der in der Mitte der Feder ausgebildet ist, zur Befestigung eines Lampenkolbens (8) zwischen dem gekrümmten Abschnitt und der Rückseite des Reflektors, mit einer Halte-Führungsfläche (14b), ausgebildet in dem Feder-Haltevorsprung (12) zum Führen des U-förmigen Abschnittes (10b) zu der Klaue (12) und mit einer geneigten Führungseinrichtung (15, 16, 17), die in dem Feder-Haltevorsprung ausgebildet ist, zum Lösen des U-förmigen Abschnittes von der Klaue, dadurch gekennzeichnet, daß eine U-förmige Ausnehmung (13) in einer Außenoberfläche (12b) des Feder-Haltevorsprunges ausgebildet ist, wobei die Außenoberfläche (12b) in einer Richtung entgegengesetzt zu dem Feder-Befestigungsabschnitt (11) freiliegt, die Ausnehmung (13) ein Paar Seitennuten (13a, 13b) enthält, die in einer Richtung, in der ein U-förmiger Druckabschnitt (10c) zum Eingriff mit der Klaue (14) gedrückt wird, langgestreckt sich erstrecken, und mit einer Verbindungsnut (13c), die die Enden der Seitennuten miteinander verbindet, wobei die anderen Enden der Seitennuten gegenüberliegend zu der Verbindungsnut offen sind und die Klaue (14) in dem Hohlraum (13) ausgebildet ist, und daß die geneigte Führungseinrichtung eine geneigte Führungsfläche (15) aufweist, die sich von einem Boden der Ausnehmung (13) aus erstreckt und in derselben Richtung wie die Halte-Führungsfläche (14b) geneigt ist.
  2. Reflektoranordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Spitze der Klaue (14) unterhalb der Außenoberfläche (12b) des Vorsprunges angeordnet ist, wenn ein Beleuchtungsabschnitt (8a) des Lampenkolbens einen oberen Endbereich bildet.
  3. Reflektoranordnung nach Anspruch 2, dadurch gekennzeichnet, daß die U-förmige Ausnehmung (13) durch Wandungen umgeben ist, die integral mit den Seitennuten (13a, 13b) sind und einander in Bezug auf die Klaue (14) gegenüberliegen, und durch eine Wandung, die die Seitenwände (13a, 13b) miteinander verbindet;
    wobei die Löse-Führungseinrichtung eine erste und eine zweite geneigte Führungsfläche (15, 16) aufweist, wobei die erste geneigte Führungsfläche (15) so ausgebildet ist, daß die Verbindungswandung von der Basis der Klaue (14) zu der Außenoberfläche (12b) des Vorsprunges geneigt und in einer entgegengesetzten Richtung zu der Klaue (14) verläuft, während die zweite geneigte Führungsfläche (16) so ausgebildet ist, daß ein Teil beider Seitenwände (13a, 13b) von einer Stelle, die einem Feder-Halteabschnitt der Klaue (14) zugewandt ist, zu der Außenoberfläche und in einer Richtung, die sich der anderen Seitenwandung nähert, geneigt verläuft; und
    wobei der U-förmige Abschnitt (10b) der Feder (10) von dem Feder-Halteabschnitt der Klaue gelöst ist und entlang der ersten und zweiten Führungsflächen (15, 16) durch Drücken des U-förmigen Druckabschnittes (10c) der Feder (10) entgegen der Elastizität der Feder (10) geführt ist.
  4. Reflektoranordnung nach Anspruch 3, gekennzeichnet durch eine dritte geneigte Führungsfläche (17), die so ausgebildet ist, daß ein Teil der anderen Seitenwandung von dem Boden der Feder-Halteausnehmung (13) zu der Außenoberfläche (12b) des Vorsprunges in einer Richtung entgegengesetzt zu der zweiten Führungsfläche (16) geneigt verläuft.
  5. Reflektoranordnung nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß die Feder (10) einen aufgerichteten Abschnitt (10d) enthält, der in entgegengesetzter Richtung zu dem gekrümmten Abschnitt (10f) gebogen ist, und einen gefalteten Abschnitt (10e) enthält, der von der Spitze des aufgerichteten Abschnittes (10d) zu einem Punkt gedreht ist, der dem Fußbereich des aufgerichteten Abschnittes (10d) entspricht, wobei der U-förmige Abschnitt (10b) der Feder (10) fortlaufend mit dem gefalteten Abschnitt (10e) ist, wobei der Druckabschnitt (10c) an einer Verbindung zwischen dem aufgerichteten und dem gefalteten Abschnitt (10d, 10e) ausgebildet ist.
  6. Reflektoranordnung nach Anspruch 5, dadurch gekennzeichnet, daß der Vorsprung (12) in einer Richtung rechtwinklig zu einem Flansch (8c) des Lampenkolbens (8) vorspringt, wobei sich der aufgerichtete und gefaltete Abschnitt (10d, 10e) in einer Richtung langgestreckt erstreckt, in der der Vorsprung auskragt, wenn der U-förmige Abschnitt (10b) der Feder (10) in Kontakt mit der Federhalte-Führungsfläche (14b) gebracht ist und wenn der U-förmige Abschnitt (10b) durch den Feder-Halteabschnitt (14a) der Klaue (14) gehalten ist und der Druckabschnitt (10c) in einer Richtung rechtwinklig zu dem Flansch (8c) des Lampenkolbens (8) gedrückt wird, um den U-förmigen Abschnitt (10b) mit der Klaue (14) in Eingriff zu bringen oder diesen von dem Feder-Halteabschnitt (14a) zu lösen.
EP93116567A 1992-10-14 1993-10-13 Lampenbefestigung Expired - Lifetime EP0593035B1 (de)

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 (de) 1994-04-20
EP0593035A3 EP0593035A3 (en) 1994-06-01
EP0593035B1 true EP0593035B1 (de) 1997-04-23

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ID=13465539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116567A Expired - Lifetime EP0593035B1 (de) 1992-10-14 1993-10-13 Lampenbefestigung

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EP (1) EP0593035B1 (de)
JP (1) JP2571320Y2 (de)
DE (1) DE69310078T2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3713330C2 (de) * 1987-04-21 1993-12-23 Hella Kg Hueck & Co Glühlampenhalterung für Kraftfahrzeugscheinwerfer

Also Published As

Publication number Publication date
JPH0636125U (ja) 1994-05-13
JP2571320Y2 (ja) 1998-05-18
DE69310078T2 (de) 1997-07-31
DE69310078D1 (de) 1997-05-28
EP0593035A3 (en) 1994-06-01
EP0593035A2 (de) 1994-04-20

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