Furniture Ejection Mechanism With Variable Spring Loading Path
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Solution Overview
Problem
Existing furniture drawer ejection systems require the drawer to be opened at least to the starting point of the loading distance for complete loading of the force storage member, limiting their operability, as the end and starting points of the loading distance are fixed relative to the furniture carcass.
Innovation Solution
The loading distance has a variable starting point, which is established during the closing movement from a second open position greater than the first open position, allowing the force storage member to be completely loaded regardless of the drawer's openness, with a shorter loading distance requiring more force and a longer distance requiring less.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the end point and starting point of the loading distance are fixed, then the structure is simple, but the furniture part must be opened at least to the starting point for complete loading, limiting operability
Solution Approach 1:
The starting point of the loading distance is made variable instead of fixed. The starting point adapts dynamically based on the actual opening position of the furniture part, allowing the loading distance to be established from any opening position during closing movement. This dynamic adjustment ensures complete loading of the force storage member regardless of how far the furniture part was opened.
2Force
If the furniture part is opened only a little, then the loading distance is short requiring high force, but if opened completely then the loading distance is long requiring less force
Solution Approach 1:
The loading distance parameter is made variable by changing its starting point based on the furniture part's opening position. When the furniture part is opened slightly, the loading distance is short and requires higher force. When opened completely, the loading distance is long and requires less force. The force storage member is always completely loaded by adjusting the starting point parameter.
3Reliability
If the force storage member is always completely loaded, then the ejection function is reliable, but the force requirement varies with opening position
Solution Approach 1:
The system automatically adjusts the loading distance starting point based on the furniture part's opening position during closing movement. The loading device establishes the loading distance from the actual opening position, ensuring the force storage member is always completely loaded without requiring user intervention to adjust parameters.
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 variability ensures the force storage member is always fully loaded, enabling efficient operation across different opening positions, with reduced force required for complete loading when the drawer is fully open and increased force when partially open, adapting the spring characteristic accordingly.
Implementation Method 1
the at least one force storage member includes a spring, preferably a leg spring
Data Source
AI summary
An arrangement for moving a moveable furniture part has an ejection device for the ejection of the furniture part from the closed position to a first open position, and the ejection device includes a force accumulator. A loading device loads the force accumulator by a closing movement of the furniture part. The loading of the force accumulator is accomplished by a loading path having an end point, and the force accumulator is fully loaded at the end point of the loading path. The loading path has a variable starting point, and the starting point is defined for a closing movement of the furniture part by the position of the furniture part at the beginning of a closing movement from a second open position which is greater than the first open position.