Luminaire Mounting Mechanism with Segmented Gear Stress Distribution

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Solution Overview

Problem

Existing luminaire mounting systems are cumbersome to install and prone to premature failure due to stress, especially when adjusting the orientation of heavy luminaires on mounting surfaces like street lighting posts.

Innovation Solution

A luminaire mounting kit with a recessed section carrying a first gear wheel portion and a mounting body with a protruding end portion carrying a first further gear wheel portion, along with recessed side portions carrying second gear wheel portions, which distribute stress across a larger area, enhancing robustness and facilitating easy adjustment through guide pins and fastening screws.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single gear mechanism is used for mounting, then the structure is simple, but the stress concentration leads to premature failure

Engineering Contradiction:
Improvemounting mechanism reliabilityVSAvoidgear mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The mounting mechanism is divided into multiple gear wheels (first gear wheel portion and second gear wheel portion) distributed at different locations. The first gear wheel portion engages with the first further gear wheel portion, while the second gear wheel portion engages with the second further gear wheel portion, segmenting the stress transmission path to prevent concentration at a single point.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple gear wheel portions are combined into a unified mounting system where the first and second gear wheel portions work together with their corresponding further gear wheel portions. This merging distributes the load across multiple engagement points, enhancing overall reliability while maintaining a cohesive structure.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If multiple gear wheels are used to distribute stress, then reliability improves, but the device complexity increases

Engineering Contradiction:
Improvemounting mechanism robustnessVSAvoidnumber of gear wheel portions
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The gear system is segmented into multiple discrete gear wheel portions (first and second gear wheel portions) that can be independently engineered and assembled. This segmentation allows for optimized stress distribution while keeping each individual component relatively simple, balancing complexity and reliability.

Inventive Principle:
Principle #1Segmentation

3Illumination intensity

If a heavy luminaire is mounted, then the illumination capability is sufficient, but the installation becomes cumbersome and difficult

Engineering Contradiction:
Improveluminous outputVSAvoidinstallation ease
Core Design Contradiction:
Illumination intensityVSEase of operation

Solution Approach 1:

The mounting mechanism segments the engagement interface into multiple gear wheel portions that can independently engage with the mounting surface. This segmentation allows the heavy luminaire to be gradually secured into position through progressive engagement, reducing the physical strain on the installer during installation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The multiple gear wheel portions act as intermediaries between the luminaire mounting section and the mounting surface. These intermediary elements distribute the weight and facilitate the mounting process by providing multiple engagement points that can be engaged sequentially, making installation of heavy luminaires more manageable.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3853523B1Luminaire mounting
Publication Date: 2022.11.09 SIGNIFY HOLDING BV
  • EP3853523B1 patent drawingFigure 1
  • EP3853523B1 patent drawingFigure 2
  • EP3853523B1 patent drawingFigure 3

AI summary

A luminaire mounting kit (10) is disclosed comprising a luminaire (100) having a mounting section (110) comprising a recessed section (120) carrying a first gear wheel portion (121), the recessed section being flanked by at least one protruding section (130) carrying a second gear wheel portion (131); and a mounting body (200) for engaging with the mounting section, the mounting body comprising a protruding end portion (220) carrying a first further gear wheel portion (221) for engaging with the first gear wheel portion; and at least one recessed side portion (230) flanking said end portion and carrying a second further gear wheel portion (231) arranged to simultaneously engage with the second gear wheel portion when the first further gear wheel portion engages with the first gear wheel portion. Also disclosed is a luminaire assembly and a method of mounting such a luminaire kit onto a mounting surface.