Vehicle headlight having low and high beams

US5911502A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Ulrich Zillgitt · Stuttgart, DE
• Stefan Hammerstingl · Munich, DE
• Werner Schulze · Göttingen, DE
• Thilo Wagner · Hamburg, DE
• Andreas Hammele · Pfullingen, DE
• Elefterios Konto · Ludwigsburg, DE

Key dates

• Filing date: Feb 17, 1998
• Grant date: Jun 15, 1999
• Expiry date: Feb 17, 2018

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F21S41/657
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

The present invention provides a a headlight operable as a running light of a vehicle and, in particular, as a headlight of the vehicle for selectively projecting a low and a high beam. The headlight includes a reflector having a light source disposed therein. A beam position adjusting device operates to move the light source between its low beam position and its high beam position. The beam position adjusting device includes an electric powered drive motor and a displaceable interconnecting element interconnecting the beam position adjusting device and the light source. The device also includes a motion translation element for translating the drive output of the drive motor to displacement of the displaceable interconnecting element, the beam position adjusting device being operable to dispose the light source in its high beam position. A return movement device automatically biases the light source to move to its low beam disposition when the drive motor is not powered.