Headlight Beam Adjustment Unit with Anti-Tamper Locking Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing headlight adjustment units for vehicles lack effective locking mechanisms to prevent unwanted adjustments and do not visibly indicate if the adjustment has been manipulated, and they do not allow for easy restoration to the original condition post-service.
Innovation Solution
A securing component that forms a positive fit with both the screw member and the housing, preventing rotational movement and providing a secure, hidden location for the screw member, which can only be accessed by the original equipment manufacturer for adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cover element is pressed into the opening to cover the screw member, then the screw member is prevented from being screwed by a tool, but the shaft can still be accessed and rotated from outside
Solution Approach 1:
The adjustment unit is divided into two separate access paths: one for the screw member (covered by the cover element) and one for the shaft (accessible through the housing opening). This segmentation allows different levels of protection and access control for different components.
Solution Approach 2:
The cover element acts as an intermediary component that provides indirect protection. While it covers the screw member, it does not completely seal the adjustment unit, allowing the shaft to remain accessible through the housing opening for authorized adjustments.
2Reliability
If the screw member is covered by a securing component, then unwanted screwing is prevented, but it becomes impossible to see whether the adjustment unit has been manipulated
Solution Approach 1:
The patent employs visual indicators (such as color-coded elements or visible markers on the housing or cover) that change or become visible when manipulation occurs. This allows the manipulation status to be detected without requiring direct viewing of the covered screw member.
Solution Approach 2:
An intermediary indicator system is introduced that translates the internal state of the adjustment unit (whether the screw member has been rotated) into an externally visible signal, such as a color change or positional marker on the housing.
3Reliability
If the screw member is locked by a securing component, then adjustment is prevented, but the original equipment manufacturer cannot easily restore the adjustment unit to the original condition
Solution Approach 1:
The adjustment unit is designed with separable components (cover element, receiver, shaft) that can be independently accessed and manipulated. This segmentation allows the original equipment manufacturer to remove the cover element and restore the screw member to its original position without replacing entire assemblies.
Solution Approach 2:
The securing component is designed to be dynamically reversible - it provides strong locking during normal operation but can be easily opened by authorized personnel using specific tools or methods, allowing restoration of the adjustment unit to its original condition.
Data Source
AI summary
An adjustment unit for the mechanical adjustment of the beam level of at least one light unit of a headlight for a vehicle, having at least one shaft and a securing component, wherein the shaft is rotatable arranged at a housing of the headlight, wherein the shaft comprises or is coupled with a screw member, by means of which a rotary motion of the shaft can be caused in a shaft axis of the shaft in order to adjust the beam level of the at least one light unit, and wherein the securing component is provided, which prevents the screw member from an unwanted screwing. According to the invention, the securing component is configured to interact with the screw member, when the securing component is in a mounted state in which it is directly or indirectly attached to the housing.