Self-Stabilizing Table Leg Assembly for Uneven Surfaces
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Solution Overview
Problem
Existing table stabilization methods, such as placing folded paper under a table leg, are ineffective in maintaining a stable table top on uneven surfaces, causing disruption for users.
Innovation Solution
A self-stabilizing system comprising a primary shaft with legs and a secondary shaft that can move side-to-side relative to the primary shaft, with a friction-based stability system to maintain position, allowing for adjustable connection to stabilize the table on uneven surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a table is placed on an uneven surface, then the table top becomes unstable and rocks, but adding complex stabilization mechanisms increases device complexity
Solution Approach 1:
The table leg is divided into two separate shafts: a primary shaft that provides rigid support and a secondary shaft that can move independently to accommodate surface unevenness. This segmentation allows each shaft to perform its specific function - the primary shaft maintains structural integrity while the secondary shaft absorbs positional variations, achieving stability without complex mechanisms
Solution Approach 2:
The secondary shaft is designed with movable connections (pivot joints or sliding interfaces) that allow it to dynamically adjust its position relative to the primary shaft. This dynamic capability enables the shaft to automatically adapt to uneven surfaces through controlled movement, maintaining table stability while keeping the stabilization mechanism simple
2Adaptability or versatility
If the connection between shafts is made loose to allow movement, then the table can adapt to uneven surfaces, but the connection strength decreases
Solution Approach 1:
The connection between shafts uses movable joints (pivot points or sliding interfaces with controlled clearance) that provide dynamic adjustment capability. These joints allow limited movement to accommodate surface unevenness while maintaining sufficient connection strength through proper mechanical design, achieving both adaptability and structural integrity
Solution Approach 2:
The friction-based stability system adjusts connection parameters (friction force) to balance movement capability and connection strength. By controlling friction characteristics, the system allows the secondary shaft to move when needed for adaptation while maintaining strong enough connection to support table loads
3Stability of the object's composition
If a friction-based stability system is added to maintain shaft position, then table stability improves, but device complexity increases
Solution Approach 1:
The friction-based stability system utilizes the natural friction characteristics of the movable joint between shafts to automatically maintain position. The system is self-regulating through friction forces that naturally prevent excessive movement while allowing necessary adjustment, eliminating the need for additional active control mechanisms and keeping the system simple
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 system effectively stabilizes the table by allowing the secondary shaft to adjust and lock into place, preventing rocking and maintaining stability even on uneven surfaces, ensuring a steady surface for objects placed on the table.
Implementation Method 1
a friction-based stability system maintains the primary shaft and secondary shaft in proper position once the table is stabilized
Data Source
AI summary
An integral system for stabilizing a table and chair on an uneven surface. The table comprises a table top supported by a first end of a primary shaft, a second end of the primary shaft having a first pair of legs extending therefrom; a secondary shaft positioned within, and movably joined at a first end to, the primary shaft, a second end of the secondary shaft having a second pair of legs extending therefrom; and wherein the secondary shaft may move in a side-to-side manner relative to primary shaft thereby stabilizing the table. Another version utilizes a plate member and shaft combination. Chairs may use similar technology.