Furniture Hinge Damping Adjustment for Variable Door Weights

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Solution Overview

Problem

Existing furniture hinges lack an independent and easily accessible mechanism for adjusting damping force and position, making them unsuitable for doors of varying weights and sizes, and often involve complex mechanisms that increase failure risks.

Innovation Solution

A furniture hinge with a damping adjustment mechanism that allows independent adjustment of damping force and position through a lever arm, using a sliding element and adjustment piece accessible via a screwdriver, enabling compatibility with different door weights and sizes while minimizing failure risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a complex adjustment mechanism is used to enable damping adjustment at different positions, then damping force and position can be adjusted, but device complexity increases and failure risks increase

Engineering Contradiction:
Improvedamping adjustment capabilityVSAvoidmechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The adjustment mechanism is segmented into independent functional components: a damping adjustment lever that can be independently operated from the power adjustment mechanism. This allows the damping function to be adjusted separately without affecting other hinge functions, reducing overall system complexity while maintaining adjustability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The damping adjustment capability is extracted as a separate, accessible function from the main hinge mechanism. The damping adjustment lever is positioned to be easily accessible and operable independently, separating the damping adjustment task from the complex power adjustment mechanism.

Inventive Principle:
Principle #2Taking out (Extraction)

2Device complexity

If the adjustment mechanism is made compact and integrated, then device complexity is reduced, but accessibility for adjustment becomes difficult

Engineering Contradiction:
Improvemechanism integrationVSAvoidadjustment accessibility
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The damping adjustment lever is positioned in a different spatial dimension or location that is easily accessible to the user, separate from the main hinge body. This allows the adjustment function to be reached and operated without disassembly, even though the internal mechanism remains integrated and compact.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Ease of operation

If damping adjustment is made independent from power adjustment, then ease of operation improves, but device complexity increases

Engineering Contradiction:
Improveindependent adjustmentVSAvoidadjustment mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The adjustment system is segmented into two independent control levers: a power adjustment lever and a damping adjustment lever. Each lever controls a specific function independently, allowing users to adjust damping without affecting power settings and vice versa, improving operational ease while maintaining manageable complexity through functional separation.

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

The hinge provides safe and easy adjustment of damping force and position without disassembly, ensuring compatibility with diverse door configurations and reducing failure risks through a simple, accessible mechanism.

Implementation Method 1

a damping element located on said lever arm for damping the furniture door that is being closed over the furniture body

Methodology Applied
Scientific EffectDamping: Damping

Data Source

PatentEP3887633B1A furniture hinge with damping adjustment
Publication Date: 2025.12.03 SAMET KALIP & MADEN ESYA SAN & TIC A S
  • EP3887633B1 patent drawingFigure 1
  • EP3887633B1 patent drawingFigure 2~3
  • EP3887633B1 patent drawingFigure 4~5

AI summary

The present invention relates to a furniture hinge that is suited for changing damping course of the furniture door in the closing direction. The inventive furniture hinge comprises; a housing; a hinge arm that is connected to the furniture door from the one end and connected to said housing in an axially rotatable manner from the other end by means of a first rotating pin; a power unit having at least one spring that creates force on said hinge arm, and that is connected between a lever arm that is capable of accommodating a power adjustment thereon and a third rotating pin in an axially rotatable manner; a movement arm that is connected to said hinge arm from one end in an axially rotatable manner, that is connected to said lever arm from the other end in an axially rotatable manner, and that enables the power transmission between said power unit and hinge arm; a damping element located on said lever arm for damping the furniture door that is being closed over the furniture body; and a damping adjustment on said lever arm for the purpose of changing the position of a cylinder belonging to the damping element with respect to the lever arm.