EP2357400A1 - Control device of a headlamp's high and low beam - Google Patents
Control device of a headlamp's high and low beam Download PDFInfo
- Publication number
- EP2357400A1 EP2357400A1 EP10001325A EP10001325A EP2357400A1 EP 2357400 A1 EP2357400 A1 EP 2357400A1 EP 10001325 A EP10001325 A EP 10001325A EP 10001325 A EP10001325 A EP 10001325A EP 2357400 A1 EP2357400 A1 EP 2357400A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- headlamp
- light shields
- lamp base
- drivers
- driving shaft
- 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- Withdrawn
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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
- This invention relates to a control device of a headlamp's high and low beam, particularly to one provided with drivers to drive two light shields to operate for controlling a light projecting range of an automobile headlamp, able to attain change-over of high and low beam of an automobile headlamp.
- an automobile is provided with a change-over device for controlling a headlamp's high and low beam, which is carried out by turning a whole headlamp base to different angles.
- a change-over device for controlling a headlamp's high and low beam, which is carried out by turning a whole headlamp base to different angles.
- the conventional way of change-over of a headlamp's high and low beam by turning the angles of the lamp base is likely to cause damage to electric wires when the lamp base is turned around and produces friction.
- the objective of this invention is to offer a control device of a headlamp's high and low beam, needless to turn the lamp base, and able to control a light projecting range of the headlamp and achieve effect of change-over of a headlamp's high and low beam.
- the control device in the present invention includes a lamp base, two drivers and two light shields combined together.
- the lamp base has its periphery formed with a projecting edge and its interior provided with an arc-shaped reflecting surface and a lamp.
- the two drivers are oppositely installed at two outer sides of the lamp base and respectively disposed with a driving shaft.
- the two light shields are respectively assembled on the two drivers, having their opposite outer sides respectively bored with a through hole for the driving shaft to be inserted therethrough.
- the two light shields are positioned under the front side of the lamp base and have their opposite inner sides superposed on each other.
- a preferred embodiment of a control device of a headlamp's high and low beam in the present invention includes a lamp base 1, two drivers 2, 2' and two light shields 3, 3' as main components combined together.
- the lamp base 1 has its periphery formed with a projecting edge 10 provided thereon with two projecting bars 11 opposite to each other and its interior provided with an arcuate reflecting surface 12 and a lamp 13.
- the two drivers 2, 2' are oppositely installed at the outer side of the lamp base 1 and respectively disposed with a driving shaft 20, 20' having an outer end oppositely provided with a tangent plane 21, 21' and a top end bored with a threaded hole 22, 22'.
- the two light shields 3, 3' are respectively assembled on the two drivers 2, 2', respectively and oppositely having an outer side bored with a through hole 30, 30' having a same shape as the outer end of the driving shaft 20, 20'.
- Two fastening elements 31, 31' are respectively inserted through the two through holes 30, 30' and threadably engaged with the threaded holes 22, 22' of the two drivers 2, 2'.
- the two light shields 3, 3' are positioned under the front side of the lamp base 1, having their opposite inner sides superposed on each other.
- the two drivers 2, 2' are respectively fixed at the opposite outer sides of the lamp base 1, having the driving shaft 20, 20' respectively protruding out of the opposite sides of the projecting edge 10 of the lamp base 1.
- the two light shields 3, 3' are respectively assembled on the two drivers 2, 2', letting the two driving shafts 20, 20' respectively inserted through the through hole 30, 31' of the two light shields 3, 3'.
- the two fastening elements 31, 31' are respectively inserted through the through holes 30, 30' of the two light shields 3, 3' and threadably secured in the threaded hole 22, 22' of the two drivers 2, 2' and then have the opposite inner sides of the two light shields 3, 3' superposed on each other.
- the control device of a headlamp's high and low beam in the present invention is to have two drivers 2, 2' driving the two light shields 3, 3' to carry out relative operation for controlling a light projecting range of the headlamp.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
A control device of a headlamp's high and low beam includes a lamp base, two drivers and two light shields combined together. The two drivers are respectively installed at two sides of the lamp base, respectively having a driving shaft. The two light shields are respectively assembled on the two drivers and under the front side of the lamp base, having their opposite outer sides respectively bored with a through hole for the driving shaft to be inserted therethrough and their opposite inner sides superposed on each other. The two drivers drive the two light shields to operate for controlling a light projecting range of the headlamp and carrying out change-over of high and low beam of the head lamp.
Description
- This invention relates to a control device of a headlamp's high and low beam, particularly to one provided with drivers to drive two light shields to operate for controlling a light projecting range of an automobile headlamp, able to attain change-over of high and low beam of an automobile headlamp.
- Generally, an automobile is provided with a change-over device for controlling a headlamp's high and low beam, which is carried out by turning a whole headlamp base to different angles. However, the conventional way of change-over of a headlamp's high and low beam by turning the angles of the lamp base is likely to cause damage to electric wires when the lamp base is turned around and produces friction.
- The objective of this invention is to offer a control device of a headlamp's high and low beam, needless to turn the lamp base, and able to control a light projecting range of the headlamp and achieve effect of change-over of a headlamp's high and low beam.
- The control device in the present invention includes a lamp base, two drivers and two light shields combined together. The lamp base has its periphery formed with a projecting edge and its interior provided with an arc-shaped reflecting surface and a lamp. The two drivers are oppositely installed at two outer sides of the lamp base and respectively disposed with a driving shaft. The two light shields are respectively assembled on the two drivers, having their opposite outer sides respectively bored with a through hole for the driving shaft to be inserted therethrough. The two light shields are positioned under the front side of the lamp base and have their opposite inner sides superposed on each other.
- This invention will be better understood by referring to the accompanying drawings, wherein:
-
Fig. 1 is an exploded perspective view of a control device of a headlamp's high and low beam in the present invention; -
Fig. 2 is a perspective view of the control device of a headlamp's high and low beam in the present invention; -
Fig. 3 is a side cross-sectional view of the control device of a headlamp's high and low beam in the present invention, showing light reflection of low beam; -
Fig. 4 is a cross-sectional view of the control device of a headlamp's high and low beam in the present invention; -
Fig. 5 is a side cross-sectional view of the control device of a headlamp's high and low beam in the present invention, showing light reflection of high beam; and -
Fig. 6 is a cross-sectional view of the control device of a headlamp's high and low beam in the present invention, illustrating lighting of high beam. - A preferred embodiment of a control device of a headlamp's high and low beam in the present invention, as shown in
Figs. 1 ,2 and3 , includes alamp base 1, twodrivers 2, 2' and twolight shields 3, 3' as main components combined together. - The
lamp base 1 has its periphery formed with a projectingedge 10 provided thereon with twoprojecting bars 11 opposite to each other and its interior provided with an arcuate reflectingsurface 12 and alamp 13. - The two
drivers 2, 2' are oppositely installed at the outer side of thelamp base 1 and respectively disposed with adriving shaft 20, 20' having an outer end oppositely provided with atangent plane 21, 21' and a top end bored with a threadedhole 22, 22'. - The two
light shields 3, 3' are respectively assembled on the twodrivers 2, 2', respectively and oppositely having an outer side bored with athrough hole 30, 30' having a same shape as the outer end of thedriving shaft 20, 20'. Twofastening elements 31, 31' are respectively inserted through the two throughholes 30, 30' and threadably engaged with the threadedholes 22, 22' of the twodrivers 2, 2'. The twolight shields 3, 3' are positioned under the front side of thelamp base 1, having their opposite inner sides superposed on each other. - In assembling, referring to
Figs. 1 to 4 , the twodrivers 2, 2' are respectively fixed at the opposite outer sides of thelamp base 1, having thedriving shaft 20, 20' respectively protruding out of the opposite sides of the projectingedge 10 of thelamp base 1. Then, the twolight shields 3, 3' are respectively assembled on the twodrivers 2, 2', letting the twodriving shafts 20, 20' respectively inserted through the throughhole 30, 31' of the twolight shields 3, 3'. Subsequently, the twofastening elements 31, 31' are respectively inserted through the throughholes 30, 30' of the twolight shields 3, 3' and threadably secured in the threadedhole 22, 22' of the twodrivers 2, 2' and then have the opposite inner sides of the twolight shields 3, 3' superposed on each other. At this time, the rear sides of the twolight shields 3, 3' are respectively supported in position by the twoprojecting bars 11 to let the twolight shields 3, 3' steadily positioned under the front side of thelamp base 1, thus finishing assembly of the control device of a headlamp's high and low beam. - In using and operating, referring to
Figs. 3 to 6 , to have the headlamp giving out light of high beam, start the twodrivers 2, 2' to operate by the power source of an automobile and thedriving shafts 20, 20' of the twodrivers 2, 2' will respectively drive the twolight shields 3, 3' to turn respectively with thedriving shaft 20, 20' serving as a pivot, letting the superposed portions of the twolight shields 3, 3' turn and shift downward, as shown inFig. 6 . Thus, light emitted by thelamp 13 in thelamp base 1 and reflected by the reflectingsurface 12 will not be obstructed by the twolight shields 3, 3' and hence the light can be projected within a range of a comparatively large angle, as shown inFig. 5 . - On the contrary, to have the head lamp giving out light of low beam, start the
drivers 2, 2' to operate reversely and thedriving shaft 20, 20' of the twodrivers 2, 2' will respectively drive the twolight shields 3, 3' to turn reversely with thedriving shaft 20, 20' respectively acting as a pivot, letting the mutually superposed portions and the opposite sides of the twolight shields 3, 3' turn upward and move back to an obstructing locations. Thus, part of the light emitted by thelamp 13 and reflected by the reflectingsurface 12 will be blocked off by the twolight shields 3, 3' and impossible to be projected out completely, letting light project out only through an upper uncovered portion of the twolight shields 3, 3' and thus attaining a lighting condition of low beam. - To sum up, the control device of a headlamp's high and low beam in the present invention is to have two
drivers 2, 2' driving the twolight shields 3, 3' to carry out relative operation for controlling a light projecting range of the headlamp. By so designing, it is needless to turn thelamp base 1 for achieving effect of change-over of high and low beam, able to prolong service life of headlamps. - While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.
Claims (3)
- A control device of a headlamp's high and low beam comprising:a lamp base having a periphery formed with a projecting edge, said lamp base having an interior provided with an arc-shaped reflecting surface and a lamp;two drivers oppositely installed at two outer sides of said lamp base, said two drivers respectively provided with a driving shaft; andtwo light shields respectively assembled on said two drivers, said two light shields respectively and oppositely bored with a through hole at an outer side for said driving shaft to be inserted therethrough, said two light shields having opposite inner sides superposed on each other, said two light shields respectively positioned under a front side of said lamp base.
- The control device of a headlamp's high and low beam as claimed in Claim 1, wherein said lamp base oppositely provided with two projecting bars respectively for supporting said two light shields.
- The control device of a headlamp's high and low beam as claimed in Claim 1, wherein said driving shaft of each said driver has an outer end oppositely provided with a tangent plane, said through hole of each said light shield having a same shape as an outer end of each said driving shaft, each said driving shaft having a top end bored with a threaded hole, a fastening element respectively inserted through said through hole of said two light shields and threadably secured in said threaded hole of each said driving shaft.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10001325A EP2357400A1 (en) | 2010-02-09 | 2010-02-09 | Control device of a headlamp's high and low beam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10001325A EP2357400A1 (en) | 2010-02-09 | 2010-02-09 | Control device of a headlamp's high and low beam |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2357400A1 true EP2357400A1 (en) | 2011-08-17 |
Family
ID=42126441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10001325A Withdrawn EP2357400A1 (en) | 2010-02-09 | 2010-02-09 | Control device of a headlamp's high and low beam |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2357400A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2639496A3 (en) * | 2012-03-14 | 2017-12-20 | Koito Manufacturing Co., Ltd. | Optical unit |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5339226A (en) * | 1992-06-03 | 1994-08-16 | Koito Manufacturing Co., Ltd. | Projection head lamp for cars |
EP1070911A2 (en) * | 1999-07-23 | 2001-01-24 | Zizala Lichtsysteme GmbH | Motor vehicle headlamp |
DE10216177A1 (en) * | 2002-04-12 | 2003-11-13 | Hella Kg Hueck & Co | Projecting module for motor vehicle headlamp has reflector with source of light and lens set up in beam alignment with it and high-beam screen for lens |
EP2135774A2 (en) * | 2008-06-20 | 2009-12-23 | Koito Manufacturing Co., Ltd. | Vehicle Headlamp Apparatus |
-
2010
- 2010-02-09 EP EP10001325A patent/EP2357400A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5339226A (en) * | 1992-06-03 | 1994-08-16 | Koito Manufacturing Co., Ltd. | Projection head lamp for cars |
EP1070911A2 (en) * | 1999-07-23 | 2001-01-24 | Zizala Lichtsysteme GmbH | Motor vehicle headlamp |
DE10216177A1 (en) * | 2002-04-12 | 2003-11-13 | Hella Kg Hueck & Co | Projecting module for motor vehicle headlamp has reflector with source of light and lens set up in beam alignment with it and high-beam screen for lens |
EP2135774A2 (en) * | 2008-06-20 | 2009-12-23 | Koito Manufacturing Co., Ltd. | Vehicle Headlamp Apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2639496A3 (en) * | 2012-03-14 | 2017-12-20 | Koito Manufacturing Co., Ltd. | Optical unit |
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Effective date: 20120218 |