Modular Gear Stage for Versatile Flap Drive Systems

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Solution Overview

Problem

Existing flap drive systems for furniture are limited to specific mechanical control units, requiring separate electric drives to be designed for each, resulting in high costs and limited adaptability.

Innovation Solution

A gear stage is introduced that can be independently dimensioned, allowing different mechanical control units to be driven with a single electric drive, enabling cost-effective retrofitting and adaptable power transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a flap drive system is designed for a specific mechanical control unit, then the system can be optimized for that unit, but the system cannot be attached to different mechanical control units

Engineering Contradiction:
Improvecompatibility with different mechanical control unitsVSAvoidneed for specially dimensioned electric drives
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The flap drive system is divided into three separate modules: the electric drive unit, the gear stage, and the mechanical control unit. This segmentation allows each module to be independently dimensioned and optimized, while the standardized interface on the gear stage enables compatibility across different configurations without requiring custom-designed electric drives for each mechanical control unit

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The gear stage serves as an intermediary component between the electric drive and the mechanical control unit. It features a standardized receptacle that can accommodate different electric drives and a standardized output that can drive different mechanical control units, thus mediating the connection and enabling versatility without increasing overall system complexity

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If separate electric drives are produced for each mechanical control unit, then optimal performance for each unit is achieved, but production costs increase

Engineering Contradiction:
Improveoptimized performanceVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The gear stage is designed as a universal interface component that can work with multiple types of electric drives and mechanical control units. This multi-functionality allows a single gear stage design to serve multiple purposes, enabling cost-effective production through standardization while maintaining optimized performance for different applications through the versatility of the standardized interface

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

3Ease of operation

If the gear stage is designed with a housing, then attachment becomes easy, but the overall device size increases

Engineering Contradiction:
Improveease of attachmentVSAvoiddevice size
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The gear stage housing is designed with dynamic assembly features including a receptacle that receives the electric drive and a pin that engages with the mechanical control unit. These dynamic features enable easy attachment and detachment without requiring complex fastening mechanisms, achieving ease of operation while minimizing the housing volume through efficient space utilization

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 solution allows for a cost-effective and versatile flap drive system that can be easily integrated with various mechanical control units and electric drives, facilitating compact construction and easy maintenance.

Implementation Method 1

a gear stage (1) is provided which is not part of the electric drive (2) or the mechanical control unit (3)

Methodology Applied
Scientific EffectGear mechanism: Gear

Data Source

PatentEP2430275B1Flap drive system
Publication Date: 2018.11.07 JULIUS BLUM GMBH
  • EP2430275B1 patent drawingFigure 1
  • EP2430275B1 patent drawingFigure 2
  • EP2430275B1 patent drawingFigure 3

AI summary

The invention relates to a flap drive system (15) for a flap (18) which is movably mounted on a furniture carcass (17), the flap drive system (15) being arranged on a sidewall of the furniture carcass (17). The flap drive system comprises: a mechanical actuating unit (3) having an actuating arm (19) that can be connected to the flap (18) and an accumulator acting upon the actuating arm (19), an electric drive, fastened on the mechanical actuating unit (3), for driving the flap (18), said electric drive (2) having at least one electric motor, and a gear stage (1) which allows the transmission of force from the electric drive (2) onto the mechanical actuating unit (3). The gear stage (1) is designed as a separate component and has a housing that is independent from the mechanical actuating unit (3) and the electric drive (2) or an independent mounting plate.