Display unit comprising a projection screen for a head-up display
First Claim
Patent Images
1. A display unit comprising:
- a projection screen for a head-up display;
a carrier element, wherein the projection screen is mounted and arranged in the carrier element pivotably about an axis of inclination; and
a pivoting device, wherein the projection screen can be adjusted in its inclination by the pivoting device, the pivoting device comprising a two-stage worm gear,wherein a first worm gear is coupled to an output shaft of a drive unit and rotates about a first axis of rotation;
wherein the first worm gear is connected to a second worm gear;
wherein the pivoting device is fastened to the carrier element and mounted resiliently by at least one spring element;
wherein a movement of the second worm gear in the longitudinal direction of the axis of rotation can be compensated and damped by the spring element; and
wherein the spring element at least partially surrounds the drive unit or the carrier element and acts upon the axis of rotation on the end faces of the second worm gear.
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Abstract
A display unit includes a projection screen for a head-up display. The projection screen is mounted and arranged in a carrier element in such a way that it can pivot about an axis of inclination, the incline of the screen being adjustable by a pivoting device. The pivoting device includes at least one worm gear.
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Citations
7 Claims
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1. A display unit comprising:
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a projection screen for a head-up display; a carrier element, wherein the projection screen is mounted and arranged in the carrier element pivotably about an axis of inclination; and a pivoting device, wherein the projection screen can be adjusted in its inclination by the pivoting device, the pivoting device comprising a two-stage worm gear, wherein a first worm gear is coupled to an output shaft of a drive unit and rotates about a first axis of rotation; wherein the first worm gear is connected to a second worm gear; wherein the pivoting device is fastened to the carrier element and mounted resiliently by at least one spring element; wherein a movement of the second worm gear in the longitudinal direction of the axis of rotation can be compensated and damped by the spring element; and wherein the spring element at least partially surrounds the drive unit or the carrier element and acts upon the axis of rotation on the end faces of the second worm gear. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification