Headlight Aiming Adjuster With Zeroable Position Indicator
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Solution Overview
Problem
Current vehicle headlamp aiming systems lack a suitable solution for integrating a direct reading indicator with adjusters, which is essential for ensuring proper headlamp aim and avoiding glare, as per Vehicle Safety Standards.
Innovation Solution
A vehicle headlight aiming device that includes a device housing with a screw chamber and an indicator nut, allowing for manual zeroing and visual indication of the aim position, coupled with an adjuster assembly that secures to the vehicle or headlamp assembly, providing vertical and horizontal aiming adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a direct reading indicator is integrated with the adjuster, then measurement precision and ease of operation are improved, but device complexity increases
Solution Approach 1:
The indicator assembly is integrated directly into the adjuster housing, combining the indication function with the adjustment mechanism. The indicator housing is positioned adjacent to the adjuster housing and secured together, creating a unified assembly that provides both adjustment and visual feedback capabilities without requiring separate independent systems.
Solution Approach 2:
The adjuster housing serves multiple functions: it houses the adjustment mechanism (ball stud, gear, input shaft) and simultaneously provides mounting structure for the indicator assembly. The indicator housing is formed as part of or integrated with the adjuster housing, allowing one structural component to fulfill both adjustment and indication functions.
2Ease of operation
If manual zeroing capability is added to the indicator, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The indicator is designed with manual zeroing capability that allows the user to pre-calibrate the indicator to the desired aim position before final adjustment. The indicator can be manually positioned or reset to a zero reference point, enabling operators to set the starting position and then make precise adjustments from that calibrated baseline.
3Measurement precision
If visual indication of aim position is provided, then measurement precision is improved, but manufacturing complexity increases
Solution Approach 1:
The indicator provides a visual copy or representation of the actual aim position through graphical indicators, scales, and reference markings. Rather than requiring complex digital sensors or electronic display systems, the invention uses optical copies (visual indicators, pointers, and scales) that directly represent the mechanical position, simplifying manufacturing while maintaining measurement precision.
Data Source
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AI summary
A vehicle headlight aiming device (10, 110, 210) is provided that includes, a device housing (15, 115, 215) having an input drive gear (46, 146, 246), a screw chamber, an output screw (38, 138, 238) having a screw shaft (40, 140, 240), a screw first end that is rotationally coupled at least indirectly with the input drive gear (46, 146, 246), and a screw second end. The device further including an indicator nut (19, 119, 219) having a base with a nut indicator mark, a first leg (60, 160, 260) and a second leg (62, 162, 262) extending from a base bottom portion, and an expandable threaded opening (66, 166, 266) extending between a first threaded wall of the first leg (60, 160, 260) and a second threaded wall of the second leg (62, 162, 262), the threaded walls selectively engageable with a threaded portion of the screw shaft (40, 140, 240), wherein the threaded opening (66, 166, 266) is expandable to disengage the first threaded wall and the second threaded wall from the threaded portion to allow a manual setting of the indicator nut (19, 119, 219) to a zero position.