GB2126329A - A front headlamp cover - Google Patents

A front headlamp cover Download PDF

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Publication number
GB2126329A
GB2126329A GB08321016A GB8321016A GB2126329A GB 2126329 A GB2126329 A GB 2126329A GB 08321016 A GB08321016 A GB 08321016A GB 8321016 A GB8321016 A GB 8321016A GB 2126329 A GB2126329 A GB 2126329A
Authority
GB
United Kingdom
Prior art keywords
cover
vehicle
headlamp
contour
light exit
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
GB08321016A
Other versions
GB8321016D0 (en
GB2126329B (en
Inventor
Johann Tomforde
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB8321016D0 publication Critical patent/GB8321016D0/en
Publication of GB2126329A publication Critical patent/GB2126329A/en
Application granted granted Critical
Publication of GB2126329B publication Critical patent/GB2126329B/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/05—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights retractable

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A front headlamp cover for motor vehicles has a diffusing lens 2, the upper region of which has a pivotable cover 4, of aerodynamically favourable design, by hinging the cover to the vehicle in such a way that when extended and retracted on hinges 5 it is movable away from and towards the vehicle while remaining parallel to the vehicle contour. <IMAGE>

Description

SPECIFICATION A front headlamp cover for motor vehicles The invention relates to a front headlamp cover for motor vehicles, particularly but not exclusively passenger cars in which the upper region of the light exit area of the headlamps can be covered by the cover.
The vehicle "lsuzu Piazza" described in the periodical "CAR - STYLING" of September 1981 already has a front headlamp cover of this type. An advantage of covering only a proportion such as a quarter to a third of the light exit area in this way is that it is possible to perform at any time certain functions, such as, for example, headlamp flashing, without swinging up the cover or without providing any additional headlamps. A disadvantage of the known cover is, however, that it is designed so that it can swing up about an axis lying at its rear end, with the result that in the extended position it substantial- ly impairs the air flow round the front part of the vehicle and consequently increases the drag coefficient, with all the disadvantages associated with this.
The object of the present invention was therefore, whilst avoiding this disadvantage, to develop the known arrangement so that even when the cover is extended the drag coefficient of the vehicle is not significantly impaired in an undesirable way.
According to the invention there is provided a front headlamp cover for motor vehicles adapted, in an installed position, to cover at least part of the light exit area of at least one headlamp, the cover being, in use, hingedly connected to the vehicle in such a way that it is extendable away from the retractable towards the vehicle contour whilst remaining at least approximately parallel to the vehicle contour.
Furthermore, it is even possible to obtain a negative-lift effect often desirable for the front axle, if, in an advantageous embodiment of the invention, the underside of the cover extends, in the extended position of the latter, approximately parallel to the vehicle contour and at a distance from this.
It is especially advantageous, at the same time, if the cover has, in cross section, a wing profile.
The spoiler, i.e., negative lift, effect sought can be further increased substantially if, as a further embodiment of the invention, the cover extends across substantially the entire width of the vehicle front.
An embodiment of the invention will now be described in more detail with reference to the accompanying drawing which shows a vertical section in the direction of the longitudinal axis of the vehicle.
A front headlamp 1 of a motor vehicle, which is not shown in any more detail, is enclosed by a diffusing lens 2, the upper region of which is more acutely inclined to merge smoothly with a front bonnet 3 of the vehicle. The front headlamp 1 can be formed by several individual headlamp units arranged next to one another.
Assigned to the said upper region of the diffusing lens 2 is a retractable and extendable cover which is articulated to the vehicle via curved levers 5 in such a way that it is moved away from and towards the vehicle contour whilst remaining approximately parallel to the vehicle contour, when pivoted from the retracted position of rest represented by continuous lines into the extended position represented by broken lines. At the same time, the broken line 6 represents the operative direction of a drive element, preferably a pressure-operable e.g., vacuum, working element, which is not shown for the sake of clarity.
The cover 4 is designed to have in cross-section a wing profile, round which, in its extended position, the air flows on its top side and underside and which can exert a negative-lift effect on the front of the vehicle. The negative-lift effect is increased if the cover is arranged to extend across substantially the entire width of the vehicle front.
1. Afront headlamp cover for motorvehicles adapted, in an installed position, to cover at least part of the light exit area at least one headlamp, the cover being, in use, hingedly connected to the vehicle in such a way that it is extendably away from and retractable towards the vehicle contour whilst remaining at least approximately parallel to the vehicle contour.
2. A front headlamp cover according to claim 1, wherein the underside of the cover extends, in the extended position of the latter, approximately parallel to the vehicle contour and at a distance therefrom.
3. A front headlamp cover according to claim 1, wherein the cover has, incross section, a wing profile.
4. A front headlamp cover according to anyone or more of the preceding claims, wherein the cover in the installed condition, is adapted to extend across substantially, the entire width of the vehicle front.
5. Afront headlamp cover according to anyone or more of the preceding claims, wherein at least one pressure operable working element is provided as a drive to extend and/or retract for the cover.
6. A front headlamp cover according to claim 5 wherein said working element is operable by means of a vacuum.
7. Afront headlamp cover according to anyone of the preceding claims in which the cover is adapted to cover the upper region of the light exit area.
8. Afront headlamp cover for motor vehicles substantially as described herein with reference to and as illustrated in the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A front headlamp cover for motor vehicles The invention relates to a front headlamp cover for motor vehicles, particularly but not exclusively passenger cars in which the upper region of the light exit area of the headlamps can be covered by the cover. The vehicle "lsuzu Piazza" described in the periodical "CAR - STYLING" of September 1981 already has a front headlamp cover of this type. An advantage of covering only a proportion such as a quarter to a third of the light exit area in this way is that it is possible to perform at any time certain functions, such as, for example, headlamp flashing, without swinging up the cover or without providing any additional headlamps. A disadvantage of the known cover is, however, that it is designed so that it can swing up about an axis lying at its rear end, with the result that in the extended position it substantial- ly impairs the air flow round the front part of the vehicle and consequently increases the drag coefficient, with all the disadvantages associated with this. The object of the present invention was therefore, whilst avoiding this disadvantage, to develop the known arrangement so that even when the cover is extended the drag coefficient of the vehicle is not significantly impaired in an undesirable way. According to the invention there is provided a front headlamp cover for motor vehicles adapted, in an installed position, to cover at least part of the light exit area of at least one headlamp, the cover being, in use, hingedly connected to the vehicle in such a way that it is extendable away from the retractable towards the vehicle contour whilst remaining at least approximately parallel to the vehicle contour. Furthermore, it is even possible to obtain a negative-lift effect often desirable for the front axle, if, in an advantageous embodiment of the invention, the underside of the cover extends, in the extended position of the latter, approximately parallel to the vehicle contour and at a distance from this. It is especially advantageous, at the same time, if the cover has, in cross section, a wing profile. The spoiler, i.e., negative lift, effect sought can be further increased substantially if, as a further embodiment of the invention, the cover extends across substantially the entire width of the vehicle front. An embodiment of the invention will now be described in more detail with reference to the accompanying drawing which shows a vertical section in the direction of the longitudinal axis of the vehicle. A front headlamp 1 of a motor vehicle, which is not shown in any more detail, is enclosed by a diffusing lens 2, the upper region of which is more acutely inclined to merge smoothly with a front bonnet 3 of the vehicle. The front headlamp 1 can be formed by several individual headlamp units arranged next to one another. Assigned to the said upper region of the diffusing lens 2 is a retractable and extendable cover which is articulated to the vehicle via curved levers 5 in such a way that it is moved away from and towards the vehicle contour whilst remaining approximately parallel to the vehicle contour, when pivoted from the retracted position of rest represented by continuous lines into the extended position represented by broken lines. At the same time, the broken line 6 represents the operative direction of a drive element, preferably a pressure-operable e.g., vacuum, working element, which is not shown for the sake of clarity. The cover 4 is designed to have in cross-section a wing profile, round which, in its extended position, the air flows on its top side and underside and which can exert a negative-lift effect on the front of the vehicle. The negative-lift effect is increased if the cover is arranged to extend across substantially the entire width of the vehicle front. CLAIMS
1. Afront headlamp cover for motorvehicles adapted, in an installed position, to cover at least part of the light exit area at least one headlamp, the cover being, in use, hingedly connected to the vehicle in such a way that it is extendably away from and retractable towards the vehicle contour whilst remaining at least approximately parallel to the vehicle contour.
2. A front headlamp cover according to claim 1, wherein the underside of the cover extends, in the extended position of the latter, approximately parallel to the vehicle contour and at a distance therefrom.
3. A front headlamp cover according to claim 1, wherein the cover has, incross section, a wing profile.
4. A front headlamp cover according to anyone or more of the preceding claims, wherein the cover in the installed condition, is adapted to extend across substantially, the entire width of the vehicle front.
5. Afront headlamp cover according to anyone or more of the preceding claims, wherein at least one pressure operable working element is provided as a drive to extend and/or retract for the cover.
6. A front headlamp cover according to claim 5 wherein said working element is operable by means of a vacuum.
7. Afront headlamp cover according to anyone of the preceding claims in which the cover is adapted to cover the upper region of the light exit area.
8. Afront headlamp cover for motor vehicles substantially as described herein with reference to and as illustrated in the accompanying drawings.
GB08321016A 1982-08-12 1983-08-04 A front headlamp cover Expired GB2126329B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3230018A DE3230018C2 (en) 1982-08-12 1982-08-12 Headlights for motor vehicles, in particular passenger vehicles

Publications (3)

Publication Number Publication Date
GB8321016D0 GB8321016D0 (en) 1983-09-07
GB2126329A true GB2126329A (en) 1984-03-21
GB2126329B GB2126329B (en) 1986-04-16

Family

ID=6170700

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08321016A Expired GB2126329B (en) 1982-08-12 1983-08-04 A front headlamp cover

Country Status (4)

Country Link
DE (1) DE3230018C2 (en)
FR (1) FR2531667B1 (en)
GB (1) GB2126329B (en)
IT (1) IT1171856B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675793A (en) * 1983-06-24 1987-06-23 Limaverne Investment Limited Adjustable headlight
US6454446B1 (en) * 1997-12-03 2002-09-24 Daniel John Hanna Headlamp cover system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3675933D1 (en) * 1985-09-23 1991-01-10 Dong Il Ryou HEADLIGHTS FOR VEHICLES WITH DIRECTIONAL ADJUSTMENT OF THE LIGHT BAND.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB611146A (en) * 1945-04-23 1948-10-26 Willys Overland Motors Inc Improvements in or relating to motor vehicle lighting
GB698261A (en) * 1950-10-12 1953-10-14 Standard Motor Co Ltd Improvements relating to motor-vehicle head lamps
GB1581805A (en) * 1977-04-12 1980-12-17 Heuliez Henri Holding Vehicle headlight assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1180836A (en) * 1957-08-06 1959-06-09 Citroen Sa Andre Improvements made to the assembly of car headlights
FR78031E (en) * 1960-07-06 1962-05-26 Citroen Sa Andre Improvements made to the assembly of car headlights
US3310669A (en) * 1964-10-29 1967-03-21 Curtis C Dils Headlight system for automobiles c. dils
GB1172627A (en) * 1966-03-11 1969-12-03 Standard Triumph Motor Company Protective Apparatus for Motor Vehicle Headlamps
FR2063817A5 (en) * 1969-10-31 1971-07-09 Metral Roger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB611146A (en) * 1945-04-23 1948-10-26 Willys Overland Motors Inc Improvements in or relating to motor vehicle lighting
GB698261A (en) * 1950-10-12 1953-10-14 Standard Motor Co Ltd Improvements relating to motor-vehicle head lamps
GB1581805A (en) * 1977-04-12 1980-12-17 Heuliez Henri Holding Vehicle headlight assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675793A (en) * 1983-06-24 1987-06-23 Limaverne Investment Limited Adjustable headlight
US6454446B1 (en) * 1997-12-03 2002-09-24 Daniel John Hanna Headlamp cover system

Also Published As

Publication number Publication date
DE3230018C2 (en) 1984-06-28
GB8321016D0 (en) 1983-09-07
FR2531667B1 (en) 1989-01-20
FR2531667A1 (en) 1984-02-17
IT8348826A0 (en) 1983-08-09
GB2126329B (en) 1986-04-16
DE3230018A1 (en) 1984-02-16
IT1171856B (en) 1987-06-10

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PCNP Patent ceased through non-payment of renewal fee