Rotatable Furniture Light Rail With Modular Bracket Extension

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Solution Overview

Problem

Existing adjustable lighting devices for furnishing have complex constructions that limit the variation of characteristics, such as longitudinal extension, making them difficult to adapt to dimensional, design, and aesthetic requirements, and complicate the installation process, increasing production and installation costs.

Innovation Solution

An adjustable lighting device with an elongated body and support bracket means that allows for easy adaptation to the characteristics of the support surface, enabling wide selection and variation of longitudinal extension during design and manufacturing, and ensures a simple installation process using readily available components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If adjustable lighting devices use a complex construction to enable rotation and adjustment, then the lighting orientation can be varied, but the longitudinal extension and adaptability to different support surfaces are limited

Engineering Contradiction:
Improveadaptability to support surface characteristicsVSAvoidconstruction complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The lighting device is divided into modular segments that can be independently adjusted in number and configuration. The support bracket means are distributed along the longitudinal direction, allowing the device to be segmented into functional units that can be customized for different support surfaces and lighting requirements, thereby improving adaptability without proportionally increasing overall complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support bracket means are designed with multi-functional capabilities, serving both as structural support elements and as adjustment mechanisms. These brackets can accommodate different mounting configurations and support surface types while maintaining the same basic structure, enabling the device to adapt to various applications without requiring completely different construction designs

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If the longitudinal extension is fixed during manufacturing, then production is simplified, but the device cannot be easily adapted to different dimensional requirements

Engineering Contradiction:
Improveselection of longitudinal extensionVSAvoidmanufacturing flexibility
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The device construction allows the longitudinal extension to be determined by the number of modular segments or support brackets installed. During manufacturing, standard components are produced in fixed quantities, but the final longitudinal extension is customized by assembling different numbers of these standard segments, thereby maintaining manufacturing simplicity while achieving dimensional adaptability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The device is designed with dynamic configurability where the longitudinal extension can be adjusted during assembly based on customer requirements. The support bracket means are positioned at variable intervals or can be selectively installed at different locations along the elongated body, allowing the final product dimensions to be dynamically adapted to specific applications without complicating the core manufacturing process

Inventive Principle:
Principle #15Dynamics

3Productivity

If the construction is optimized for a specific longitudinal extension, then manufacturing efficiency improves, but installation becomes complicated when extension needs to be varied

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidinstallation simplicity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The lighting device is constructed from standardized modular segments that can be independently manufactured with optimized processes for each segment type. During installation, these pre-manufactured segments are simply assembled in the required quantity and configuration, thereby maintaining high manufacturing efficiency while greatly simplifying installation for different longitudinal extensions

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support bracket means and other components are pre-positioned or pre-configured during manufacturing at standard locations. This preliminary action allows the device to be quickly adapted during installation by simply adding or removing segments rather than performing complex customization work, thereby maintaining manufacturing efficiency while improving installation flexibility

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4711672A1Adjustable lighting device for interior furnishing
Publication Date: 2026.03.18 DOMUS LINE
  • EP4711672A1 patent drawingFigure 1
  • EP4711672A1 patent drawingFigure 2
  • EP4711672A1 patent drawingFigure 3

AI summary

The present invention relates to an adjustable lighting device (10) adapted to be fixed to a support surface (S1) of a piece of furniture or of an inner wall of a room. The lighting device (10) comprises an elongated body (12) extending along a longitudinal direction (L1), a lighting unit (14) associated with the elongated body (12), and support bracket means (16) configured to rotatably connect the elongated body (12) to the support surface (S1). Specifically, the elongated body (12) comprises a guide channel (50) having at least partially substantially an arched shape in cross-section, and the support bracket means (16) include at least one intermediate bracket (54). Said at least one intermediate bracket (54) in turn comprises a first fixing portion (56) and an end portion (58) having shape of arched plate in cross-section to slidably engage the guide channel (50) rotatably connecting the elongated body (12) to the intermediate bracket (54) about a rotation axis (R1) parallel to the longitudinal direction (L1).