Headlamp Pivot Mount With Spherical Sliding Surfaces

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Solution Overview

Problem

Existing motor vehicle headlight adjustment systems require significant space due to their design, which restricts the compactness of headlight designs and do not allow for independent and non-influencing adjustments of components.

Innovation Solution

The adjustment system employs a holding element with a spherical sliding surface and a support frame with a corresponding spherical surface, using a screw-like connecting element to transmit movement, allowing for independent pivoting about two orthogonal axes without the need for a traditional adjustment triangle, thus minimizing space requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a classic adjustment triangle with fixed bearing point and two points of application is used, then reliable adjustment of relevant component is achieved, but the space required by the adjustment system increases

Engineering Contradiction:
Improvereliable adjustmentVSAvoidspace requirement
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

The patent applies spherical surfaces to the connection between holding element and support frame. The holding element contains a spherical connection element that engages with a corresponding spherical recess in the support frame, enabling pivoting movement about two orthogonal axes while occupying minimal space. This spherical joint design replaces the space-consuming adjustment triangle while maintaining reliable adjustment capability.

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Ease of operation

If adjustment arms and bearing points forming an adjustment triangle are used, then component adjustment is achieved, but the construction volume of the adjustment system increases

Engineering Contradiction:
Improvecomponent adjustmentVSAvoidconstruction volume
Core Design Contradiction:
Ease of operationVSVolume of stationary object

Solution Approach 1:

The patent merges multiple adjustment functions into a single compact spherical joint mechanism. The holding element with spherical connection element combines the functions of multiple bearing points and adjustment arms into one integrated component that enables pivoting about two axes simultaneously, dramatically reducing construction volume while maintaining ease of operation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The spherical connection element is nested within the support frame structure. The holding element with its spherical connection element fits into a corresponding spherical recess in the support frame, creating a nested arrangement that minimizes external dimensions while providing full adjustment capability.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Adaptability or versatility

If multiple adjusting devices are used for different components, then comprehensive adjustment capability is achieved, but the adjusting devices may influence each other's movements

Engineering Contradiction:
Improveadjustment capabilityVSAvoidindependent adjustment
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments the adjustment system into independent adjusting devices, each responsible for a specific axis of pivoting. The first adjusting device controls pivoting about the first axis while the second adjusting device controls pivoting about the second axis, ensuring that adjustments on one axis do not influence the other, thereby maintaining reliable independent adjustment capability.

Inventive Principle:
Principle #1Segmentation

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 design significantly reduces the construction volume of the adjustment system, enabling independent and space-efficient adjustments of components like sensors and light sources, without influencing each other's movements, thereby enhancing the compactness and functionality of motor vehicle headlights.

Implementation Method 1

the connecting element is designed as a screw means, wherein the adjusting component can be brought into a loosened state and into a fastened state in conjunction with the screwing means

Methodology Applied
Scientific EffectScrew mechanism: Screw

Implementation Method 2

the holding element comprises a first sliding surface of a pair of surfaces, which is designed as part of a spherical surface, a support frame for receiving the holding element, wherein the support frame comprises a second sliding surface of the pair of surfaces, which is formed as part of a spherical surface

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4094049B1Adjusting device for pivoting at least one relevant component for a motor vehicle headlamp
Publication Date: 2023.11.29 ZKW GRP GMBH
  • EP4094049B1 patent drawingFigure 1
  • EP4094049B1 patent drawingFigure 2~3
  • EP4094049B1 patent drawingFigure 4

AI summary

The invention relates to a positioning device (10) for pivoting at least one relevant component (20) for a motor vehicle headlight about a first and a second axis (X, Y), comprising: • - a holding element (100) for a relevant component (20), said holding element having a first sliding surface (110) which is designed as part of a spherical surface, • - a support frame (200) comprising a second sliding surface (210) which is designed as part of a spherical surface, said holding element (100) being supported in the support frame (200) by means of a bearing device such that the first sliding surface (110) of the holding element (100) can be moved along the second sliding surface (210) of the support frame (200) about the first and second axis (X, Y), and • - an adjusting device (300) that has a positioning component (301) and a first relocating device (310) and a second relocating device (320), each of which is arranged on the positioning component (301) that is mechanically connected to the holding element (100) by means of a connecting element (400), wherein the connecting element (400) passes through the support frame (200) via an opening (220), and the connecting element (400) is designed to transmit a movement of the positioning component (301) to the holding element (100). The connecting element is designed as a screw means, and the positioning component can be brought into a released state and a secured state. The positioning component (301) can be moved in the released state and can be clamped against the support frame in a non-displaceable manner in the secured state by tightening the screw means.