Drive device for moveable furniture component
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Solution Overview
Problem
Existing drive devices for moveable furniture parts face challenges in efficiently utilizing spring forces, as the ejection and retraction forces often act against each other, requiring manual loading and potentially leading to inefficient energy use and mechanical complexity.
Innovation Solution
The ejection force storage member is loaded by the retraction force storage member upon retraction, allowing the retraction force storage member to also function as an assistance force for ejection, eliminating the need for manual loading and optimizing the use of spring forces for both opening and closing movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ejection force storage member and retraction force storage member are designed as separate components with opposing forces, then reliable locking action is achieved, but the device complexity increases and manual loading is required
Solution Approach 1:
The patent combines the ejection and retraction force storage members into a single spring component that performs both functions. The spring is designed to provide ejection force when compressed during closing and retraction force when extended during opening, eliminating the need for separate force storage members and reducing mechanical complexity while maintaining reliable locking action.
Solution Approach 2:
The single spring component serves multiple functions: it acts as both the ejection force storage member and the retraction force storage member. By designing the spring with appropriate pre-load and mechanical linkage, it automatically provides the necessary forces for both opening and closing operations without requiring manual loading or complex mechanical means.
2Ease of operation
If the ejection force storage member is loaded manually during operation, then the moveable furniture part can be ejected, but the ease of operation decreases and user effort increases
Solution Approach 1:
The spring is pre-loaded during the closing operation automatically, storing energy before the opening operation is needed. This preliminary action of loading the spring during closing eliminates the need for manual loading during opening, making the operation easier and reducing user effort while maintaining effective ejection force.
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 configuration enables a compact and efficient drive device where the retraction force storage member assists in both retraction and ejection, reducing manual effort and enhancing the reliability and smooth operation of the furniture part's movement.
Implementation Method 1
an ejection device having an ejection force storage member for ejecting the moveable furniture part into an open position, and a retraction device having a retraction force storage member for retracting the moveable furniture part
Data Source
AI summary
A drive device for a movable furniture component, particularly for a drawer, includes an ejection device having an ejection force accumulator for ejecting the movable furniture component into an open position, and a retraction device having a retraction force accumulator for retracting the movable furniture component from an open position into a closed position. The ejection force accumulator can be charged by the retraction force accumulator during retraction of the movable furniture component.