Drawer Slide Stabilization Using Lateral Rest Contact
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Solution Overview
Problem
Existing devices for stabilizing the movement of movable furniture parts, such as drawers, are complex, difficult to assemble, and often fail to ensure simultaneous and parallel movement, leading to inadequate activation of opening and closing mechanisms, especially when the parts are wide or heavy.
Innovation Solution
A device featuring a revolving and/or sliding rest element that connects to either the fixed or movable part of the furniture, with a rest surface that contacts a lateral abutment surface perpendicular to the movement plane, ensuring contact and stabilization during movement, and allowing for adjustment to accommodate varying dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If racks or friction surfaces with rotating gear wheels or friction gears interconnected by rigid torsion bars are used to stabilize movement, then simultaneous and parallel movement of both sides is achieved, but device complexity and assembly difficulty increase significantly
Solution Approach 1:
The patent extracts the essential stabilization function from the complex gear and torsion bar system, retaining only the critical elements (rest element with rest surface and lateral abutment surface) needed to achieve simultaneous parallel movement, thereby eliminating unnecessary complexity while maintaining movement stability
Solution Approach 2:
Instead of using active mechanical elements (gears, torsion bars) to enforce synchronized movement, the patent uses passive geometric constraints (rest surface perpendicular to lateral abutment surface) that naturally guide both sides to move simultaneously and parallelly through the geometry of contact surfaces
2Manufacturing precision
If complex stabilization devices with multiple components are implemented, then movement parallelism is improved, but ease of manufacture and assembly deteriorate
Solution Approach 1:
The patent merges the stabilization function into a single integrated body structure where the rest element and lateral abutment surface work together as one unit, eliminating the need for separate gears, racks, and torsion bars, thereby simplifying both manufacturing and assembly processes while maintaining movement precision
Solution Approach 2:
The patent changes the geometric parameters of the contact surfaces (rest surface oriented perpendicular to lateral abutment surface) to inherently produce the desired movement parallelism, replacing complex mechanical linkages with optimized geometric constraints that are easier to manufacture
3Stability of the object's composition
If rigid connection elements are used to enforce simultaneous movement, then movement synchronization is improved, but adaptability to adjustments deteriorates
Solution Approach 1:
The patent replaces rigid fixed connections with dynamic geometric constraints where the rest element can rotate or slide while maintaining contact with the lateral abutment surface, allowing the system to adapt to position adjustments while preserving simultaneous movement synchronization through the perpendicular orientation of contact surfaces
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
The solution enables simple, economical, and effective stabilization of movable furniture parts, ensuring simultaneous and parallel movement, which activates both opening and closing devices, even when adjustments are needed, thus improving the functionality of the movable parts.
Implementation Method 1
a revolving and/or sliding rest element... having a rest surface shaped and arranged so as to remain in contact... with a corresponding lateral, abutment surface
Data Source
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AI summary
The device for the stabilization of the movement of a movable part (2) of a piece of furniture, along lateral slide guides (3) between an inserted closed position and an extracted opened position, with respect to a fixed part (1) of the piece of furniture, wherein the movable part (2) is of the type equipped with at least one opening and/or closing device (17) to facilitate the first tract of the opening movement and/or a last tract of the closing movement of the movable part (2), comprises a body (19) having at least one revolving and/or sliding rest element (20) solidly constrained to the fixed part (1) or to the movable part (2) of the piece of furniture, said element (20) remaining in contact, for at least one tract of movement of the movable part (2) at the said inserted closed position, with a corresponding lateral, abutment surface (10') solidly constrained to the other furniture part, and being arranged perpendicular to the movement plane of the movable part (2) of the piece of furniture and parallel to the lateral slide guides (3).