# US 5,700,079 A · Headlight for vehicle

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- Number: US 5,700,079 A
- Document ID: US5700079A
- Status: Granted
- Kind: A
- Application number: 08/314,195
- Filed: 1994-09-28
- Granted: 1997-12-23
- Earliest claimed: 1993-10-12
- Assignees: Robert Bosch GmbH
- Inventors: Bernhard Woerner; Kurt Haug; Thomas Fabry; Peter Kusserow; Bert Jenner
- Web page: https://patentgrep.com/patent/US5700079A

## CPC

- F21V 25/04: breaking the electric circuit
- B60Q 1/007: {via a removable cap}
- B60Q 1/0088: {Details of electrical connections (B60Q1/305 takes precedence; electrical connection of the light source itself F21S41/192, F21S43/195)}
- B60Q 1/0094: {Arrangement of electronic circuits separated from the light source, e.g. mounting of housings for starter circuits for discharge lamps (arrangements being part of the light source holder F21V17/06, F21S43/195)}
- B60Q 1/06: adjustable, e.g. remotely-controlled from inside vehicle (B60Q1/05 takes precedence)
- F21S 41/17: Discharge light sources
- F21S 41/192: {Details of lamp holders, terminals or connectors}
- F21V 25/02: coming into action when lighting device is disturbed, dismounted, or broken
- F21S 41/55: Attachment thereof
- F21V 27/02: Cable inlets
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS

## Abstract

A headlight has a housing accommodating a gas discharge lamp and opening is closeable by a closing part. The gas discharge lamp is connectable by an electrical conductor with a voltage source, which is provided with a plug connection. The first plug part is arranged on the housing while the second plug part is releasable from outside of the housing. The releasable plug part blocks the cover in its position in which it closes the opening so that a removal of the cover for releasing the opening can be performed only after removal of the plug part. It is therefore guaranteed that no voltage applies to the parts of the headlight.

## Claims

### Claim 1

A headlight for a vehicle, comprising a housing having an opening; a gas discharge lamp arranged in said housing; a closing part which closes said opening; a voltage source with which said gas discharge lamp is connectable; connecting means for connecting said gas discharge lamp with said voltage source and including a plug connection with a releasable plug part arranged outside said housing, said closing part being removable from outside of said housing for releasing said opening, said releasable plug part blocking said closing part in a position in which said closing part closes said opening.

### Claim 2 (depends on 1)

A headlight as defined in claim 1, wherein said plug connection has a plug part which is stationarily arranged on said housing and also said releasable plug part.

### Claim 3 (depends on 1)

A headlight as defined in claim 1, wherein said releasably plug part has a region which overlaps said closing part for blocking said closing part.

### Claim 4 (depends on 3)

A headlight as defined in claim 3, wherein said releasable plug part is provided with at least one electrical connecting conductor for said voltage source which electrical connecting conductor is interrupted in said releasable plug part; and further comprising at least one electrical contact arranged on said closing part so that when said plug connection is produced it connects interrupted conductor portions with one another.

### Claim 5 (depends on 1)

A headlight as defined in claim 1, wherein said releasable plug part has a band-shaped portion overlapping said closing part and mounted non-releasably on said releasable plug part and on said housing.

### Claim 6 (depends on 1)

A headlight as defined in claim 1, wherein said closing part is turnable about an axis for closing and opening said opening, said releasable plug part being arranged so that it blocks a turning movement of said closing part.