Load trim compensating vehicle headlight deflection system,申请号US19770826703-传众专利搜索

Load trim compensating vehicle headlight deflection system

申请公布号：US4162424(A)

申请号：US19770826703

申请日期：1977.08.22

申请公布日期：1979.07.24

申请人：

BOSCH, ROBERT GMBH

发明人：DOLL, GUNTHER;KUHN, WOLFGANG;ZILLGITT, ULRICH

分类号：B60Q1/115;B60Q1/076;(IPC1-7):B60Q1/02

主分类号：B60Q1/115

摘要：A command transmitter is in the form of a step switch with a progressive bridging contact, the individual contacts of the step switch being connected to individual contacts of a contact array over which a slider mounted on the drive rod that actuates the headlight elevation position slides. The inertia of the moving drive rod carries the slider beyond the last energized contact of the array. If a single contact array is used, a restoring spring pushes back the drive rod until it again touches an energized contact and the drive executes a hunting movement that is designed to provide no appreciable disturbence of the headlight position. When a second contact array and slider are used, in cooperation with a second set of contacts and a second bridging contact at the command transmitter, a reversible drive is used and there is no hunting movement. A non-reversible drive is provided by an expansion chamber drive controlled by an electrical heater. A reversible electric motor is used in the reversible drive.