Drive device for a moveable furniture part
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drive devices for movable furniture parts, such as drawers, are typically wide due to the placement of synchronization teeth and energy accumulators next to the guide track, making them inefficient in terms of space usage and component count.
Innovation Solution
A drive device design where the synchronization coupling element and ejection force accumulator are positioned within the guide track's width, with a cardioid section, ensuring they do not protrude beyond the track's maximum width, allowing for a narrower construction and simpler structure with fewer components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the synchronizing teeth and energy accumulators are placed laterally next to the guide track, then the drive device achieves proper synchronization and energy storage functions, but the drive device becomes relatively wide and occupies more space
Solution Approach 1:
The patent merges the synchronizing coupling element and the ejection force storage device into a single integrated transmission element. The synchronizing coupling element is formed as part of the transmission element's body, and the ejection force storage device is integrated within the same component structure, eliminating the need for separate lateral placement of these components next to the guide track.
Solution Approach 2:
The design nests the synchronizing coupling element and ejection force storage device within the boundaries of the guide track width. The transmission element is positioned such that its maximum width does not exceed the guide track width, effectively nesting these functional elements within the existing spatial envelope rather than extending beyond it.
2Use of energy by moving object
If the web on the actuating element is made wider to accommodate energy storage devices, then proper energy storage is achieved, but the overall drive device width increases significantly
Solution Approach 1:
Instead of increasing the width (lateral dimension) of the transmission element to accommodate energy storage, the patent utilizes the depth dimension by positioning the ejection force storage device along the closing direction within the guide track boundaries. This dimensional shift allows energy storage functionality without increasing the overall width of the drive device.
Solution Approach 2:
The ejection force storage device is merged with the transmission element structure, sharing the same spatial envelope defined by the guide track width. This integration allows both energy storage and transmission functions to coexist within the same width constraints, eliminating the need for a wider web design.
3Reliability
If multiple separate components are used for synchronization and energy storage, then each component can be optimized for its specific function, but the overall device complexity and component count increase
Solution Approach 1:
The patent combines the synchronizing coupling element and ejection force storage device into a single integrated transmission element. This merging reduces the total component count while maintaining the functional optimization of each subsystem through dedicated design features within the unified structure.
Solution Approach 2:
The transmission element is designed as a multi-functional component that simultaneously performs synchronization (through the synchronizing coupling element) and energy storage (through the ejection force storage device). This universal design approach allows a single component to fulfill multiple functions that would traditionally require separate parts.
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 design results in a more compact and efficient drive device that requires less space, with the synchronization coupling element and ejection force accumulator entirely within the guide track's plane, facilitating easier integration and reduced component complexity.
Implementation Method 1
a ejection device (4) having an ejection slide (41) and a ejection force storage device (42)
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The invention relates to a drive device (1) for a moveable furniture part (2), in particular for a drawer, comprising a carrier (3) extending in the closing direction (SR) of the moveable furniture part (2), an ejection device (4) for ejecting the moveable furniture part (2) out of a closed position (SS) into an open position (OS), a locking device (5) for locking the ejection device (4) in the locked position (VS), wherein the locking device (5) has a locking pin (51) connected to the ejection device (4) and a guide track (52) for the locking pin (51) formed at least partially in or on the carrier (3), as well as a synchronisation device (6) for synchronising the movement of the drive device (1) with a second drive device (1'), wherein the synchronisation device (6) has a transmission element (60) which is moveably mounted on the carrier (3) and can be moved by the locking pin (51) and a synchronisation coupling element (63) connected to the transmission element (60), wherein the guide track (52) has a maximum guide track width (Bmax) measured perpendicular to the closing direction (SR), wherein the synchronisation coupling element (63) and the ejection force store (42) are arranged within this guide track width (Bmax) when viewed in the closing direction (SR).