Selective Locking Assembly for Furniture Drawers
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Solution Overview
Problem
Existing assemblies for selective locking of drawers or extractable components fail to prevent simultaneous opening of multiple drawers, particularly in furniture with drawers arranged side by side or superimposed, posing safety risks and limitations in usage.
Innovation Solution
A mechanism comprising actuating means, such as rotatable bars or rods, coupled with coupling and stop mechanisms, allows selective locking by rotating between disengagement and engagement positions based on drawer extraction, preventing simultaneous extraction of multiple drawers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is designed to prevent simultaneous opening of multiple drawers, then safety and reliability are improved, but the device complexity increases
Solution Approach 1:
The locking mechanism is divided into multiple independent actuating means, each associated with a specific drawer. Each actuating means includes a stop that can selectively engage with engaging means on other drawers. This segmentation allows the system to prevent simultaneous opening of multiple drawers while maintaining individual control over each drawer, thus improving safety without requiring a single complex centralized locking system.
2Adaptability or versatility
If the locking assembly is designed to work with drawers arranged side by side or superimposed, then adaptability is improved, but the device complexity increases
Solution Approach 1:
The actuating means are designed with universal functionality to work with drawers arranged in various configurations (side by side or superimposed). Each actuating means can control its associated drawer and interact with engaging means on other drawers regardless of their spatial arrangement. The stops can engage with engaging means on drawers positioned horizontally or vertically adjacent, making the mechanism adaptable to different furniture layouts without requiring configuration-specific designs.
3Reliability
If a locking mechanism prevents simultaneous drawer extraction, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The locking mechanism employs dynamic stops that can selectively engage or disengage from engaging means on other drawers. When a drawer is extracted, the associated actuating means moves, causing the stop to disengage from engaging means on other drawers, automatically allowing those drawers to be opened. This dynamic behavior ensures reliable prevention of simultaneous opening while maintaining ease of operation, as users can freely open drawers when not simultaneously extracting multiple drawers.
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
Enables the flexible and reliable selective locking of extractable components, allowing only one drawer to be extracted at a time, adaptable to various furniture configurations, including side-by-side and superimposed arrangements, while maintaining competitive production costs.
Implementation Method 1
A mechanism comprising actuating means, such as rotatable bars or rods, coupled with coupling and stop mechanisms, allows selective locking by rotating between disengagement and engagement positions based on drawer extraction
Data Source
AI summary
A selective locking assembly of extractable components prevents the simultaneous extraction of several drawers. The selective locking assembly includes at least one pair of actuating devices formed by at least one rigid elongated element extending horizontally and arranged so as to be axially rotatable in proximity to a back wall of the drawers, each actuating device being operatively associable with a corresponding drawer through a first coupling device and being also equipped, at drawers not associated therewith, with a stop device arranged and selectively cooperates with the drawers to prevent/allow extraction, each actuating device being adapted to be rotatably displaced, in response to the extraction movement of the drawer to which it is associated, from a first position, wherein the stop device allows the extraction of any of the drawers, to a second position wherein the stop device interacts with the other drawers to prevent the extraction thereof.