Headlamp positioning device
AssigneeSaia AG
InventorEdmond Sieber
Life of this patent
Estimating the term…
Abstract
A headlamp positioning device having a stepping motor and a sensor for detecting loss of steps in the motor. An electronic controller operating in open-loop with the motor automatically reinitiates the positioning upon the detection of loss of steps due to an impediment during the positioning of the headlamps.
Claims15
A device for positioning an element capable of attaining different predetermined positions between two extreme positions, comprising a driving shaft coupled to said element, said driving shaft being driven by a stepping motor, said device including means for counting steps taken by said stepping motor and reinitiating said counting, said stepping motor being controlled by an open-loop control.
A method for assembling a gear component of a gear reduction system of a device for positioning an element capable of attaining different predetermined positions between two extreme positions, comprising the steps of:
- (a) mounting said gear component having a hub on a driving shaft coupled to said element, said driving shaft being driven by a stepping motor, said stepping motor comprising means for reinitiating counting of steps and being controlled by an open-loop control;
- (b) positioning a first face of said hub of said gear component against a means for limiting axial movement of said gear component in one direction;
- (c) positioning a bushing against a second face of said hub of said gear component, said bushing limiting axial movement of said gear component in a direction opposite to said first direction, said bushing being disposed in a bearing;
- (d) exerting pressure on said bearing towards said hub of said gear component in order to resiliently shift said bearing by a distance d;
- (e) joining said bushing and said bearing;
- and
- (f) removing said pressure from said bearing.
Dependencies are inferred from the claim text.