Hinge Flow Guiding Device for Furniture Electrical Conductivity

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Solution Overview

Problem

Existing furniture designs face challenges in effectively electrifying movable parts, limiting the integration of electrical devices due to limitations in power supply and conductivity within hinges and other moving components.

Innovation Solution

The integration of power-carrying devices with contact units and anchoring systems within hinges, allowing for electrical conductivity between movable and fixed furniture parts, utilizing conductive materials like die-cast zinc and spring-loaded contact elements for secure and concealed power supply, enabling the use of hinges as electrical connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If power-carrying means are integrated into the hinge to enable electrical connection between movable and fixed furniture parts, then electrical conductivity is improved, but device complexity increases

Engineering Contradiction:
Improveelectrical conductivityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The hinge is designed to serve dual functions: mechanical connection and electrical conduction. The hinge arm and hinge cup are made of electrically conductive material (die-cast zinc) and incorporate contact units that enable current flow while maintaining the mechanical hinge function. This eliminates the need for separate electrical connection components.

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

Solution Approach 2:

The power-carrying device is merged with the hinge structure. The contact unit is integrated into the hinge arm, and the hinge itself serves as the current-carrying path. This consolidation reduces the number of separate components and simplifies the overall device while ensuring reliable electrical connection.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If spring-loaded contact elements are used to ensure secure contact under vibrations, then contact reliability is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvecontact reliabilityVSAvoidease of manufacture
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

Spring-loaded contact elements are incorporated into the hinge structure to preemptively compensate for vibrations and contact instability. The spring mechanism maintains constant contact pressure between the contact unit and the conductive hinge, ensuring reliable electrical connection even under vibrational conditions before problems occur.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Shape

If the contact unit is concealed within the furniture body, then aesthetic appearance is improved, but installation complexity increases

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidinstallation complexity
Core Design Contradiction:
ShapeVSEase of manufacture

Solution Approach 1:

The contact unit is nested within the furniture body structure. The contact unit for the fixed furniture part is arranged below the mounting plate for the hinge arm and is guided within the furniture body so that the contact is not visible to a user from the outside. This nesting approach conceals the electrical components while maintaining functionality.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 solution enhances the electrical conduction quality, allowing for the concealed and secure power supply to movable furniture parts, such as doors or flaps, even under vibrations, by using the hinge as a power supply conduit, optimizing current transmission and maintaining contact without visible external components.

Implementation Method 1

the current-carrying means comprise at least one spring-loaded contact element for electrical contacting

Methodology Applied
Scientific EffectSpring-loaded contact: Spring

Data Source

PatentEP2995757B1Flow guiding device on a furniture part, and hinge with flow guiding means and furniture with hinge and flow guiding means
Publication Date: 2020.12.09 GRASS GMBH
  • EP2995757B1 patent drawingFigure 1a~1c
  • EP2995757B1 patent drawingFigure 2a~2c
  • EP2995757B1 patent drawingFigure 3a~3c

AI summary

A device (1) for conducting current to a furniture part (3) is proposed. The furniture part (3) is movably connected to a stationary furniture part, for example a furniture carcass (2), via a hinge (6). According to the invention, current-conducting means are provided, comprising a first current-conducting device for fixed arrangement on the side of the movable furniture part (3) and a second current-conducting device for fixed arrangement in the stationary furniture part (2). Each current-conducting device has a contact unit (4b, 5b) for contacting the hinge (6), which is fixedly arranged between the movable and stationary furniture parts, on the one hand on the side of the movable furniture part (3) and on the other hand on the side of the stationary furniture part (2). At least the contact unit (5b) for the side of the stationary furniture part (2) has an anchoring device for anchoring in the stationary furniture part.