Headlight Adjusting Device Vertical Pivot Lever
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Solution Overview
Problem
Existing adjusting devices for truck headlights face challenges in providing high actuating forces and maintaining stability to prevent vibrations when adjusting lighting units, particularly when turning about a horizontal axis.
Innovation Solution
The design features a pivot lever with a bearing part and actuator forming an articulated connection, allowing the pivot lever to turn about a horizontal axis, with an engagement element positioned in the upper region and the articulated connection in the lower region, creating a long lever arm for high actuating forces, and an electrical drive for dynamic adjustment, housed in a trough-shaped structure for stability and ease of removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the lever arm of the pivot lever is made long to provide high actuating forces, then the actuating force increases, but the device complexity and risk of vibrations increase
Solution Approach 1:
The pivot lever is oriented vertically with the engagement element in the upper region and the articulated connection in the lower region, creating a long lever arm in the vertical dimension. This dimensional arrangement maximizes the lever arm length without increasing horizontal space requirements, thereby providing high actuating forces while maintaining compact device dimensions.
2Stability of the object's composition
If the construction is made rigid to prevent vibrations, then stability improves, but the ability to accommodate dynamic adjustment movements is reduced
Solution Approach 1:
The pivot lever is designed with articulated connections that allow dynamic movement during adjustment operations. The bearing part with pivot pin and pivot bar enables controlled rotational movement about the horizontal pivot axis, while the vertical orientation and long lever arm provide mechanical stability. This dynamic design accommodates adjustment movements while maintaining stability to prevent unwanted vibrations.
3Force
If the pivot lever is positioned far from the actuator to increase lever arm length, then actuating force increases, but the device size increases
Solution Approach 1:
The solution utilizes the vertical dimension by positioning the engagement element in the upper region and the articulated connection in the lower region of the pivot lever. This vertical arrangement creates a long lever arm without increasing the horizontal footprint of the device, thereby maximizing actuating force while maintaining compact device volume.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration ensures high actuating forces for dynamic turning of the lighting unit, minimizing vibrations and providing a stable, space-saving construction that meets dynamic requirements.
Implementation Method 1
a linear drive unit (6) having a threaded rod (15) mounted for rotation, in threaded engagement with an actuator (14), which can be moved by turning the threaded rod (15) in the axial direction
Data Source
AI summary
An adjusting device for headlights, in particular for truck headlights, comprising a linear drive unit containing a threaded rod mounted for rotation, in threaded engagement with a control element, which control element can be moved in the axial direction of the threaded rod by turning the threaded rod, a pivot lever which has an articulated connection to the actuator, and an engagement element of the pivot lever which can act on the lighting unit to be adjusted, wherein the articulated connection is formed by a bearing part of the pivot lever and by a supporting part of the actuator such that the pivot lever can be turned about a horizontal pivot axis extending through the articulated connection, such that the engagement element is arranged in an upper region of the pivot lever in the vertical direction, and such that the articulated connection is arranged in a lower region of the pivot lever in the vertical direction.