EP0412367A1 - Projecteur automobile - Google Patents

Projecteur automobile Download PDF

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Publication number
EP0412367A1
EP0412367A1 EP90114344A EP90114344A EP0412367A1 EP 0412367 A1 EP0412367 A1 EP 0412367A1 EP 90114344 A EP90114344 A EP 90114344A EP 90114344 A EP90114344 A EP 90114344A EP 0412367 A1 EP0412367 A1 EP 0412367A1
Authority
EP
European Patent Office
Prior art keywords
diaphragm
compression spring
stop
abutment
headlight according
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.)
Granted
Application number
EP90114344A
Other languages
German (de)
English (en)
Other versions
EP0412367B1 (fr
Inventor
Werner Jablotschkin
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 EP0412367A1 publication Critical patent/EP0412367A1/fr
Application granted granted Critical
Publication of EP0412367B1 publication Critical patent/EP0412367B1/fr
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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/686—Blades, i.e. screens moving in a vertical plane

Definitions

  • the invention relates to a headlight for vehicles, with the features according to the preamble of claim 1.
  • a tension spring inserted between the second screen and a fixed part holds the second screen in an end position.
  • an adjustment device is articulated on it, by means of which the second diaphragm must be pressed into its one end position against the force of the tension spring and held in this position.
  • the adjustable diaphragm of the second diaphragm is only positioned exactly when the adjustment of the second diaphragm is carried out completely and precisely.
  • the object of the invention is to improve the headlight described in the generic term such that a spring not only fixes the second aperture in its two end positions, but also when the second aperture is not pivoted to exactly one of the two end positions, the second aperture in brings the end position.
  • Claims 9 to 12 propose a recess in the fixed screen which has the stops and which has the minimum dimensions and does not cause any friction when the second screen is pivoted.
  • claims 13 and 14 the smallest possible dimensions of the longitudinal slot introduced in the second panel are achieved without causing friction between it and the compression spring.
  • headlights are proposed, in which either all the recesses in the panels are separated from one another or are formed in the panels by a common opening. With common openings, the tool life increases due to the larger area to be punched out of the screen.
  • claims 18 to 23 a compression spring with the smallest possible dimensions is achieved, which nevertheless rests with a relatively large prestress on the abutments of the diaphragms and a small distance from which has an adjacent aperture.
  • this compression spring is securely locked to the panels by simply bending an end section protruding from the panels.
  • a spring can not, such as. B. a coil spring under load transverse to its longitudinal axis.
  • a headlamp is proposed in which the compression spring can be installed easily and quickly, without a great deal of friction when adjusting the second aperture between the compression spring and the apertures.
  • the headlight for vehicles shown in Figure 1 consists essentially of an ellipsoidal reflector (1) and a fixed first diaphragm (3) and adjustable second diaphragm (4) arranged between the converging lens (2) and the reflector (1).
  • the reflector has an opening (5) at the apex for receiving an incandescent lamp (6).
  • the first panel (3) and the frame (8) are made in one piece from sheet metal.
  • the diaphragm edge (9) of the first diaphragm (3) is arranged approximately in the focal point of the converging lens (2) and has a course which is common for a headlight for right-hand traffic.
  • the diaphragm edge (9) has a horizontal first part (10), which forms the section of the light / dark boundary lying on the side of oncoming traffic, and a second part (11) falling off to the horizontal, which forms the other section of the light / dark boundary .
  • the second panel (4) which is made of sheet metal, bears against the main surface of the first panel, which faces the lens (2) and runs perpendicular to the optical axis.
  • the second diaphragm (4) can be pivoted about an axis (12) running parallel to the optical axis in two end positions, of which the upper active position (see FIG. 3) and the lower one is a rest position (see FIG. 4). In the lower end position, the diaphragm edge (13) of the second diaphragm lies below the first part (11) of the fixed diaphragm edge, while in the upper end position the diaphragm edge (13) of the second diaphragm (4) lies above the second part (11) of the fixed diaphragm edge lies.
  • the adjustable diaphragm edge (13) merges into the first part (10) of the fixed diaphragm edge (9) and lies with this first part in a horizontal plane.
  • the pivot axis (12) lies at a distance from the adjustable diaphragm edge below the first part (10) of the fixed diaphragm edge (9).
  • the second screen (4) has a section (14) which extends beyond the pivot point (12) and serves as a handle for adjusting the second screen (4).
  • the second diaphragm (4) is pretensioned in both end positions by a compression spring (15) which is between a first abutment (16) of the first diaphragm (3) and a second abutment (17) of the second diaphragm (4) is inserted, held.
  • the compression spring (15) is made of a spring wire and bent into an annular eyelet.
  • the ring lies approximately in a surface running parallel to the diaphragms (3 and 4).
  • the annular compression spring has a first end section (18) and a second end section (19).
  • the end sections (18, 19) which are at a distance from one another, are bent so far in their direction of pressure that they run at an acute angle to their direction of insertion.
  • the end section (18) of the compression spring (15) passes through the recess (20) of the first panel (3) and the recess (21) of the second panel.
  • the abutment (16) of the first diaphragm (3) is formed by the side surface of the recess (20).
  • the side surface (16) is an annular jacket surface section, the radius of which corresponds approximately to the radius of the spring wire.
  • the recess (21) in the second panel (4) is a longitudinal slot, which is slightly wider than the diameter of the spring wire and extends in an arc in its longitudinal extent, the center of which lies on the pivot axis (12).
  • the longitudinal slot (21) is so long that when the second diaphragm (4) is pivoted between the first end section (18) of the compression spring (15) and the longitudinal slot (21) there is largely no friction.
  • the second end section (19) of the compression spring passes through the cutout (22) of the first cover (3) and the cutout (23) of the second cover (4).
  • the recess (23) is a circular opening, the side surface section facing the abutment (16) is the abutment (17) for the end section (19).
  • the recess (22) in the first panel (3) is formed by a longitudinal slot, the short side surfaces (24) of which serve as a stop for the second end section (19) of the compression spring.
  • the longitudinal slot (22) is so wide that it forms an opening in the first panel (3) together with the recess (22).
  • FIG 2 the position of the abutment (16, 17) and the stops (24) to each other and to the pivot point (12) is shown.
  • the distance (a) between the first abutment (16) and the pivot point (12) is smaller than the distance (b) between the second end section (19) of the compression spring (15) and the pivot point (12).
  • the distance (c) between the first abutment (16) and the stops (24) for the second end section (19) of the compression spring (15) is related to the distance (d), which is the difference between the distances (b and a) in a ratio which is 1.5: 1.
  • the first abutment (16) lies on a line (25) which passes through the pivot point (12) and in the middle between the two stops (24).
  • the end sections (18 and 19) of the compression spring rest only on the outer edges of the abutment surface (16, 17) and the stops (24). Since they also rest in the end positions of the adjustable diaphragm (4) on the outer edges of the longitudinal slots (21 and 22), the adjustable diaphragm (4) is not only fixed in its direction of adjustment by the spring, but also transversely in the area of the wire spring to the direction of adjustment.
  • the diaphragm edge (13) of the second diaphragm (4) could produce the light / dark limit both in its upper and lower end position together with the first part (10) of the first diaphragm (3), since the diaphragm edge (13) is precisely positioned in both end positions of the diaphragm (4).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP90114344A 1989-08-10 1990-07-26 Projecteur automobile Expired - Lifetime EP0412367B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3926455 1989-08-10
DE3926455A DE3926455A1 (de) 1989-08-10 1989-08-10 Scheinwerfer fuer fahrzeuge

Publications (2)

Publication Number Publication Date
EP0412367A1 true EP0412367A1 (fr) 1991-02-13
EP0412367B1 EP0412367B1 (fr) 1993-12-08

Family

ID=6386877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90114344A Expired - Lifetime EP0412367B1 (fr) 1989-08-10 1990-07-26 Projecteur automobile

Country Status (2)

Country Link
EP (1) EP0412367B1 (fr)
DE (2) DE3926455A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4233032A1 (de) * 1992-10-01 1994-04-07 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
FR2708335A1 (fr) * 1993-06-30 1995-02-03 Bosch Gmbh Robert Projecteur pour véhicule équipé pour la circulation à droite et la circulation à gauche.
EP1070911A3 (fr) * 1999-07-23 2005-12-28 Zizala Lichtsysteme GmbH Projecteur pour véhicules automobiles
EP1722162A2 (fr) 2005-05-11 2006-11-15 Hella KG Hueck & Co. Projecteur pour véhicules

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19643945C2 (de) * 1996-10-31 2001-04-05 Armin Orth Ellipsoidscheinwerfer für Kraftfahrzeuge
WO2016201218A2 (fr) 2015-06-12 2016-12-15 Velocys, Inc. Procédé de conversion de gaz de synthèse

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179132A (en) * 1985-08-10 1987-02-25 Bosch Gmbh Robert Headlamp for dipped light or fog light, of vehicles
EP0294589A2 (fr) * 1987-06-12 1988-12-14 Robert Bosch Gmbh Phare-code

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179132A (en) * 1985-08-10 1987-02-25 Bosch Gmbh Robert Headlamp for dipped light or fog light, of vehicles
EP0294589A2 (fr) * 1987-06-12 1988-12-14 Robert Bosch Gmbh Phare-code

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4233032A1 (de) * 1992-10-01 1994-04-07 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
FR2708335A1 (fr) * 1993-06-30 1995-02-03 Bosch Gmbh Robert Projecteur pour véhicule équipé pour la circulation à droite et la circulation à gauche.
EP1070911A3 (fr) * 1999-07-23 2005-12-28 Zizala Lichtsysteme GmbH Projecteur pour véhicules automobiles
EP1722162A2 (fr) 2005-05-11 2006-11-15 Hella KG Hueck & Co. Projecteur pour véhicules

Also Published As

Publication number Publication date
DE3926455A1 (de) 1991-02-14
DE59003769D1 (de) 1994-01-20
EP0412367B1 (fr) 1993-12-08

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