GB2156504A - Vehicle lamp - Google Patents

Vehicle lamp Download PDF

Info

Publication number
GB2156504A
GB2156504A GB08502611A GB8502611A GB2156504A GB 2156504 A GB2156504 A GB 2156504A GB 08502611 A GB08502611 A GB 08502611A GB 8502611 A GB8502611 A GB 8502611A GB 2156504 A GB2156504 A GB 2156504A
Authority
GB
United Kingdom
Prior art keywords
lamp
reflector
reflector part
bulb
bulb socket
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
GB08502611A
Other versions
GB8502611D0 (en
GB2156504B (en
Inventor
Heinz Dick
Johannes Lux
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.)
Ford Motor Co
Original Assignee
Ford Motor 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 Ford Motor Co filed Critical Ford Motor Co
Publication of GB8502611D0 publication Critical patent/GB8502611D0/en
Publication of GB2156504A publication Critical patent/GB2156504A/en
Application granted granted Critical
Publication of GB2156504B publication Critical patent/GB2156504B/en
Expired legal-status Critical Current

Links

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
    • B60Q1/0064—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor with provision for maintenance, e.g. changing the light bulb
    • B60Q1/007—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor with provision for maintenance, e.g. changing the light bulb via a removable cap
    • 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
    • F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • F21S41/55—Attachment thereof
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/39—Attachment thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A vehicle lamp has a reflector (4,7) with a bulb socket (5) at the centre of the reflector and a lens (2). The reflector is made in two parts. A first part (4) forms the major part of the reflector surface. The second part (7) is removable from the lamp, in a direction transverse to the lamp axis, and carries the bulb socket (5). This makes for easy changing of the bulb from above. <IMAGE>

Description

SPECIFICATION Vehicle lamp The invention relates to a vehicle lamp. The lamp may be a headlamp or a spot lamp or a fog or other type of lamp.
A spotlight and fog lamp for vehicles can be seen in each of DE-OS 19 37 301 and DE-AS 20 24 171, but these can only remotely be regarded as the starting point for the present invention.
These known lamps are accessories which are retro-fitted. When a bulb change is necessary, in one case the entire light and in the other the lens has to be dismantled.
A headlight or lamp for vehicles is also known from DE-AS 20 02 935 where a lens and reflector are fixed to a support frame. The reflector is fixed to the support frame merely by a spring assembly so that it can easily be removed in the direction of the axis of the lamp in order to change the bulb.
Another headlight for vehicles is known from DE-OS 27 55 200 wherein a metal bulb socket is mounted in a plastics reflector and is so designed that it dissipates in the best possible way the heat produced by the bulb.
Similarly here changing the bulb is only possible by removing a housing part in the direction of the axis of the light. With modern vehicles, fitting the powerful headlights is becoming more and more difficult through the increasingly aerodynamic shape of the bonnet and the lack of space in the engine compartment resulting therefrom. In the case of comparatively wide headlights which lie partly in front of the radiator area, changing the bulb is possible only from above. Headlights lying in this area were therefore provided with asymmetric reflectors in which the bulb was mounted from above and substantially vertically. This produced surfaces which were ineffective regarding lighting technique which led to less powerful headlights.
A further disadvantage of such suspended bulbs lies in a high temperature concentration in the region of the bulb socket so that here the use of economic plastics materials for the reflector was restricted.
According to the invention, there is provided a vehicle lamp having a lens, a bulb socket and a reflector, the reflector comprising a first fixed reflector part and a second reflector part, the second part including the bulb socket and being removable from the lamp in a direction transverse to the axis of the lamp.
Such a lamp allows the bulb to be mounted horizontally which is more favourable regarding the lighting technique and in addition allows the bulb to be changed upwards and transverse to the axis of the light. Furthermore a favourable heat conduction around the bulb socket is provided so that an economic plastics material can be used for the major part of the reflector. This also produces a headlight of low structural height wherein the bulb can be easily changed.
If the first reflector part consists of plastics and the second reflector part consists of metal and is in one piece with the bulb socket, an economic design is achieved with effective heat conduction.
If the first reflector part forms a parallel walled shaft into which the second reflector part can be inserted transverse to the axis of the light and guided by suitable side pieces, a secure alignment of the second reflector part is ensured.
The second reflector part inserted in the first reflector part may be designed as a stepped reflector projecting slightly forwards so that an even flatter structural height of the lamp can be achieved.
Securing of the displaceable second reflector part in the first reflector part can be effected by spade terminals which are provided at the ends of the electrical connecting leads and which also serve to make the necessary electrical connections. These leads, which are disconnected when changing the bulb, can remain in the housing so as not to cause obstruction when removing the second reflector part transverse to the axis of the lamp.
The invention will now be further described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a vertical section in the longitudinal direction of the vehicle through a lamp according to the invention Figure 2 is a horizontal section along the line ll-ll in Fig. 1; and Figure 3 is a view in the direction of arrow Ill in Fig. 1.
The lamp 1 shown in the drawings, which may be a headlight, spot light, fog headlight or fog lamp, basically comprises a lens 2 and a housing 3 which are connected together and fixed to the vehicle bodywork (not shown). A first fixed reflector part 4 of plastics and a second displaceable reflector part 7 of metal containing the bulb socket 5 for a bulb 6 are mounted together. A retaining spring 8 is provided in the normal way for holding the bulb 6 in the bulb socket 5. Leads 9 and 10 with corresponding spade terminals 11 and 1 2 are provided for the electrical connection of the bulb socket 5.
The displaceable second reflector part 7 is designed as a stepped reflector set forward relative to the first reflector part 4 and has rearwardly extending parallel side pieces 1 3 and 14 which are guided in a parallel walled shaft 1 5 of the first reflector part 4.
The housing 3 is provided in the area above the second displaceable reflector part 7 with an opening 1 6 which in a known way is closed by a sealed cap 1 7 in conjunction with a spring bar 18.
To replace the bulb, after undoing the spring bar 1 8 the cap 1 7 is removed and the spade terminals 11 and 12 of the leads 9 and 10 are disconnected. Thus on the one hand the fixing of the displaceable second reflector part 7 is released whilst on the other hand the leads 9 and 10 do not have to be fully removed at the top on removing the reflector part 7. The reflector part 7 is then withdrawn.
Now the bulb 6 can be released in the usual way by releasing the retaining spring 8.
Refitting the reflector part 7 from above is not difficult since its parallel side pieces 1 3 and 14 in conjunction with the parallel-walled shaft on the first reflector part 4 ensure a good guide. When the reflector part 7 has reached its fully inserted position the spade terminals 11 and 1 2 are refitted to secure the position of the second reflector part 7 whilst at the same time providing the electric connection for the bulb socket 5.
The second displaceable reflector part 7 allows the headlight to be easily adapted to different national laws. For example where a yellow light is required such as in France, either a yellow filter can be attached to the second reflector part or the aluminium coating on the second reflector part can be provided with a yellow protecting varnish. By suitably selecting the size of the second reflector part in relation to the first reflector part the main structural unit of the headlight can remain the same and only a different second reflector part need be provided for different national requirements.
The use of a reflector part which can be removed transverse to the axis of the light is not only possible for head and fog lamps but can also be used for other kinds of vehicle lamps.

Claims (8)

1. A vehicle lamp having a lens, a bulb socket and a reflector, the reflector comprising a first fixed reflector part and a second reflector part, the second part including the bulb socket and being removable from the lamp in a direction transverse to the axis of the lamp.
2. A lamp as claimed in Claim 1, wherein the first reflector part is made of plastics and the second reflector part is made of metal.
3. A lamp as claimed in Claim 2, wherein the second reflector part is made in one piece with the bulb socket.
4. A lamp as claimed in any preceding claim, wherein the first reflector part forms a parallel-sided shaft into which the second reflector part can be inserted with parallel sides of the second reflector part engaging the parallel sides of the shaft.
5. A lamp as claimed in any preceding claim, wherein the second reflector part is a stepped reflector projecting beyond the first reflector part.
6. A lamp as claimed in any preceding claim, wherein the second reflector part is secured in the first reflector part by the spade terminal connectors which are also used to pass electric current to the bulb socket of the lamp.
7. A lamp as claimed in any preceding claim, wherein the second reflector part is provided with either a yellow filter or a yellow protecting varnish so that, when in use, the lamp emits a yellow light.
8. A vehicle lamp substantially as herein described with reference to the accompanying drawings.
GB08502611A 1984-03-22 1985-02-01 Vehicle lamp Expired GB2156504B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3410463A DE3410463C1 (en) 1984-03-22 1984-03-22 Headlights or lights for motor vehicles

Publications (3)

Publication Number Publication Date
GB8502611D0 GB8502611D0 (en) 1985-03-06
GB2156504A true GB2156504A (en) 1985-10-09
GB2156504B GB2156504B (en) 1987-07-22

Family

ID=6231234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08502611A Expired GB2156504B (en) 1984-03-22 1985-02-01 Vehicle lamp

Country Status (3)

Country Link
DE (1) DE3410463C1 (en)
FR (1) FR2561752B1 (en)
GB (1) GB2156504B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2640726B1 (en) * 1988-12-15 1991-02-01 Cibie Projecteurs LIGHTING DEVICE WITH A TWO-PART REFLECTOR IN PLASTIC MATERIAL FOR MOTOR VEHICLES
FR2702031B1 (en) * 1993-02-26 1995-05-24 Peugeot Reflector for a motor vehicle optical unit, comprising a removable lamp support device, and optical unit incorporating said reflector.
DE4426162C1 (en) * 1994-07-22 1995-12-07 Bosch Gmbh Robert Vehicle headlamp with bulb holding device
FR2724713B1 (en) * 1994-09-16 1997-01-24 Valeo Vision LAMP HOLDER FOR PROJECTOR OR FIRE, PARTICULARLY FOR A MOTOR VEHICLE

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1937301A1 (en) * 1969-07-23 1971-02-04 Schardmueller Friedrich Searchlight
DE2002935C3 (en) * 1970-01-23 1978-03-09 Robert Bosch Gmbh, 7000 Stuttgart Headlights or lights for motor vehicles
DE2024171C3 (en) * 1970-05-16 1975-04-03 Robert Bosch Gmbh, 7000 Stuttgart Headlights or lights, in particular for mounting on motor vehicles
GB1446167A (en) * 1972-07-05 1976-08-18 Wallace Knight Ltd Lamp
FR2223626A1 (en) * 1973-03-28 1974-10-25 Sev Marchal Headlamp with main and auxiliary reflectors - has auxiliary lamp taper plug mounting section fitting in mating socket
DE2755200C2 (en) * 1977-12-10 1986-09-25 Robert Bosch Gmbh, 7000 Stuttgart Headlights for vehicles
US4323953A (en) * 1980-05-19 1982-04-06 National Service Industries, Inc. Floodlight
FI63477C (en) * 1981-11-10 1983-06-10 Ahlstroem Oy SLUTEN BELYSNINGSARMATUR MONTERAD PAO EN SKENA

Also Published As

Publication number Publication date
FR2561752A1 (en) 1985-09-27
GB8502611D0 (en) 1985-03-06
DE3410463C1 (en) 1985-04-18
GB2156504B (en) 1987-07-22
FR2561752B1 (en) 1988-01-08

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940201