Headlamp for vehicles
The invention concerns a headlamp for vehicles with a reflector comprising a reflector opening for receiving a gas discharge lamp, with an ignition device for operating the gas discharge lamp, with holding means for releasably connecting the ignition device to a reflector, with electromagnetically compatible contact means arranged between the ignition device and the reflector, wherein the holding means includes a holding element which together with the ignition device and the gas discharge lamp forms a common unit, and the electromagnetically compatible contact means is integrated in the holding element, in such a way that, in a locking position of the holding element with the reflector, there is an electrically conductive connection between the ignition device and the reflector.
1. A headlamp for vehicles comprising:
a reflector comprising a reflector opening for receiving a gas discharge lamp,
an ignition device for operating the gas discharge lamp,
a holder for releasably connecting the ignition device to a reflector,
an electromagnetically compatible contact arranged between the ignition device and the reflector,
wherein the holder includes a holding element ( 17 ) which together with the ignition device ( 2 ) and the gas discharge lamp ( 3 ) forms a common unit ( 2 ′), and in that the electromagnetically compatible contact ( 11 ) is integrated in the holding element ( 17 ), such that, in a locking position of the holding element ( 17 ) with the reflector ( 4 ), there is an electrically conductive connection between the ignition device ( 2 ) and the reflector ( 4 ); and
wherein the holding element ( 17 ) comprises several recesses ( 20 ) distributed in turret fashion, in which in each case electromagnetically compatible contact elements ( 11 ′) are positioned in clamping relationship.
2. Headlamp according to claim 1 , characterised in that the holding element ( 17 ) is ring-shaped and arranged coaxially with a longitudinal axis ( 18 ) of the gas discharge lamp ( 3 ), and in that the holding element ( 17 ) comprises fastening means ( 15 , 16 ) for releasable connection to a neck ( 12 ) of the reflector ( 4 ).
3. A headlamp according to claim 1 , characterised in that the holding element ( 17 ) is divided into at least one first ring segment ( 27 ) and a second ring segment ( 28 ), with a joint such that the first ring segment ( 27 ) and/or the second ring segment ( 28 ) is designed to be pivotable about a pivot axis ( 25 ).
4. A headlamp according to claim 1 , characterised in that the holding element ( 40 ) has at least two ring segments ( 41 , 41 ′) which are coupled together via at least one spring element ( 42 ), and in that the direction of action of the spring element ( 22 ) is oriented perpendicularly to the longitudinal axis ( 18 ) of the gas discharge lamp ( 3 ).
5. A headlamp according to claim 1 characterised in that the holding element ( 50 ) has a control rod ( 51 ) by means of which the holding element can be moved into at least two positions of different circumferential length.
6. A headlamp according to claim 1 characterised in that the holding element ( 17 , 40 , 50 ) has a bayonet ring ( 16 ) by means of which locking to the reflector neck ( 12 ) can be effected.
7. A headlamp according to claim 1 characterised in that the holding ring ( 19 ) and the bayonet ring ( 16 ) are connected to each other in one piece and designed as a plastic part.
8. A headlamp for vehicles comprising:
a reflector comprising a reflector opening for receiving a gas discharge lamp,
an ignition device for operating the gas discharge lamp,
a holder for releasably connecting the ignition device to a reflector,
an electromagnetically compatible contact arranged between the ignition device and the reflector,
wherein the holder includes a holding element ( 17 ) which together with the ignition device ( 2 ) and the gas discharge lamp ( 3 ) forms a common unit ( 2 ′), and in that the electromagnetically compatible contact ( 11 ) is integrated in the holding element ( 17 ), such that, in a locking position of the holding element ( 17 ) with the reflector ( 4 ), there is an electrically conductive connection between the ignition device ( 2 ) and the reflector ( 4 ); and
the holding element ( 17 ) on the one hand has a holding ring ( 19 ) for receiving the electromagnetically compatible contact ( 11 ) and on the other hand has fastening elements ( 26 , 29 , 30 ), such that at least part of the holding ring ( 19 ) is arranged so as to be movable in a plane arranged perpendicularly to the longitudinal axis ( 18 ) of the gas discharge lamp ( 3 ), for release and connection of the holding ring ( 19 ) to the ignition device ( 2 ) and/or to the gas discharge lamp ( 3 ).
9. A headlamp according to claim 8 , characterised in that the holding element ( 17 ) ring-shaped and arranged coaxially with a longitudinal axis ( 18 ) of the gas discharge lamp ( 3 ), and in that the holding element ( 17 ) comprises fastening means ( 15 , 16 ) for releasable connection to a neck ( 12 ) of the reflector ( 4 ).
10. A headlamp according to claim 8 , characterised in that the holding element ( 17 ) is divided into at least one first ring segment ( 27 ) and a second ring segment ( 28 ), with a joint such that the first ring segment ( 27 ) and/or the second ring segment ( 28 ) is designed to be pivotable about a pivot axis ( 25 ).
11. A headlamp according to claim 8 , characterised in that the holding element ( 40 ) has at least two ring segments ( 41 , 41 ′) which are coupled together via at least one spring element ( 42 ), and in that the direction of action of the spring element ( 22 ) is oriented perpendicularly to the longitudinal axis ( 18 ) of the gas discharge lamp ( 3 ).
12. A headlamp according to claim 8 , characterised in that the holding element ( 50 ) has a control rod ( 51 ) by means of which the holding element can be moved into at least two positions of different circumferential length.
13. A headlamp according to claim 8 , characterised in that the holding element ( 17 , 40 , 50 ) has a bayonet ring ( 16 ) by means of which locking to the reflector neck ( 12 ) can be effected.
14. A headlamp according to claim 8 , characterised in that the holding ring ( 19 ) and the bayonet ring ( 16 ) are connected to each other in one piece and designed as a plastic part.
15. A headlamp for vehicles comprising:
a reflector comprising a reflector opening for receiving a gas discharge lamp,
an ignition device for operating the gas discharge lamp,
a holder for releasably connecting the ignition device to a reflector,
an electromagnetically compatible contact arranged between the ignition device and the reflector,
wherein the holder includes a holding element ( 17 ) which together with the ignition device ( 2 ) and the gas discharge lamp ( 3 ) forms a common unit ( 2 ′), and in that the electromagnetically compatible contact ( 11 ) is integrated in the holding element ( 17 ), such that, in a locking position of the holding element ( 17 ) with the reflector ( 4 ) there is an electrically conductive connection between the ignition device ( 2 ) and the reflector ( 4 ); and
the holding ring ( 19 ) has an inner ring section ( 31 ), such that the holding element ( 17 ) engages in clamping relationship in an annular groove ( 32 ) of the ignition device ( 2 ) and/or lamp socket ( 3 ).
16. A headlamp according to claim 15 , characterised in that the holding element ( 17 ) is ring-shaped and arranged coaxially with a longitudinal axis ( 18 ) of the gas discharge lamp ( 3 ), and in that the holding element ( 17 ) comprises fastening means ( 15 , 16 ) for releasable connection to a neck ( 12 ) of the reflector ( 4 ).
17. A headlamp according to claim 15 , characterised in that the holding element ( 17 ) is divided into at least one first ring segment ( 27 ) and a second ring segment ( 28 ), with a joint such that the first ring segment ( 27 ) and/or the second ring segment ( 28 ) is designed to be pivotable about a pivot axis ( 25 ).
18. A headlamp according to claim 15 , characterised in that the holding element ( 40 ) has at least two ring segments ( 41 , 41 ′) which are coupled together via at least one spring element ( 42 ), and in that the direction of action of the spring element ( 22 ) is oriented perpendicularly to the longitudinal axis ( 18 ) of the gas discharge lamp ( 3 ).
19. A headlamp according to claim 15 , characterised in that the holding element ( 50 ) has a control rod ( 51 ) by means of which the holding element can be moved into at least two positions of different circumferential length.
20. A headlamp according to claim 15 , characterised in that the holding element ( 17 , 40 , 50 ) has a bayonet ring ( 16 ) by means of which locking to the reflector neck ( 12 ) can be effected.
21. A headlamp according to claim 15 , characterised in that the holding ring ( 19 ) and the bayonet ring ( 16 ) are connected to each other in one piece and designed as a plastic part.