Vehicle Headlamp Pivot Mounting with Eccentric Sleeve

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Solution Overview

Problem

Existing vehicle headlight designs face challenges in ease of assembly, stability, and durability, particularly in compensating for offset movements and handling heavier optical components, which can lead to misalignments and potential accidents.

Innovation Solution

The design incorporates an eccentric sleeve on a bearing dome with an adjustable second axis, allowing the actuating device to pivot stably and easily, secured by a bearing bore and holding elements, and featuring a ball joint for flexible movement, enabling simpler assembly and robust mounting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the actuating device is rigidly fixed to the bearing element, then the construction is stable, but the assembly becomes complex and replacement of the actuating device requires exchanging the entire light module

Engineering Contradiction:
ImproveReplacement of actuating deviceVSAvoidAssembly structure
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The actuating device is separated from the light module through the bearing dome interface. The bearing dome acts as an independent mounting component that allows the actuating device to be detached and replaced without removing the entire light module, enabling modular replacement and simplifying repair operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bearing dome serves as an intermediary component between the actuating device and the light module. This mediator allows the actuating device to be mounted and adjusted independently, facilitating easy replacement while maintaining a stable connection to the light module through the bearing dome interface.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of manufacture

If the actuating device is mounted with simple bearing elements, then the assembly is simple, but the mounting lacks stability under external influences like shocks and vibrations

Engineering Contradiction:
ImproveAssembly simplicityVSAvoidMounting stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The bearing dome provides a dynamic mounting solution that allows the actuating device to pivot and adjust while maintaining stable connection. The spherical bearing interface enables controlled movement and compensation for external influences like shocks and vibrations, combining simplicity with reliability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The bearing dome uses a spherical geometry to provide stable mounting. The spherical interface between the bearing dome and the actuating device allows for multi-directional adjustment while maintaining constant contact and stable connection, resisting external influences through the geometric properties of the spherical bearing surface.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Adaptability or versatility

If the second axis is fixed, then the structure is simple, but the ability to compensate for offset movements and handle heavier optical components is limited

Engineering Contradiction:
ImproveAxis adjustabilityVSAvoidStructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The second axis is made adjustable through the bearing dome mechanism, allowing the axis position to be dynamically changed to compensate for offset movements. This dynamic adjustability enables the system to handle heavier optical components and correct alignment issues without requiring a completely complex reconfiguration mechanism.

Inventive Principle:
Principle #15Dynamics

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 simplifies assembly, enhances stability, allows for easier replacement of components, and ensures the headlight remains aligned, even under external influences like shocks and vibrations, thus preventing misalignments and potential accidents.

Implementation Method 1

an eccentric sleeve (12) is arranged on the bearing dome (8), preferably pushed on, the eccentric sleeve (12) having an inner jacket (12a) adapted to the lateral surface of the bearing dome (8) and an inner jacket axis which is arranged on the bearing dome, preferably deferred state coincides with the axis of the bearing dome, has at least partially eccentrically formed outer shell

Methodology Applied
Scientific EffectEccentric: Excentric

Data Source

PatentEP2826666B1Headlamp for vehicles with a pivoting, optical assembly
Publication Date: 2017.05.31 ZKW GRP GMBH
  • EP2826666B1 patent drawingFigure 1~4
  • EP2826666B1 patent drawingFigure 2~3c
  • EP2826666B1 patent drawingFigure 3

AI summary

The invention relates to a headlight for vehicles with an optical unit (1) which optical unit (1) is pivotably mounted about a first axis (2) on a bearing element (7), which bearing element (7) carries an adjusting device (3) spaced apart from the first axis (2), which has an adjusting element (4) that is translationally adjustable and coupled to the optical unit (1), and wherein a hinge-like connection (5) exists between the adjusting device (3) and the optical unit (1), and wherein the adjusting device (3) is pivotably mounted about a second axis (6) on the bearing element (7) and the second axis (6) runs parallel to the first axis (2). According to the invention, a bearing boss (8) or a bearing bore is provided on the bearing element (7), on which, respectively, the adjusting device (3) is connected to a corresponding bearing boss or bore.is mounted with a corresponding bearing bore (9) pivotable about the second axis (6).