Elevation Table Leg Sleeves for Smooth Stable Height Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional elevation tables face challenges in achieving stable and smooth height adjustment due to excessive resistance or instability during the upward/downward linear movement of the movable leg in the fixed leg, which cannot be overcome simultaneously.
Innovation Solution
The use of embedding holes in the positioning sleeves with embedded elastic pieces allows for point contact between the movable leg and the fixed leg, reducing resistance and enhancing stability by using first and second positioning sleeves with embedding holes and elastic embedded pieces for reduced friction during linear movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the movable leg and fixed leg are arranged in a slidable fitting manner with clearance for smooth movement, then the ease of operation is improved, but the stability of linear movement deteriorates
Solution Approach 1:
The patent introduces positioning sleeves (first positioning sleeve on movable leg, second positioning sleeve on fixed leg) as intermediary components between the movable leg and fixed leg. These sleeves provide positioning features that guide and stabilize the linear movement while allowing smooth operation, thus resolving the contradiction between ease of operation and stability of movement.
2Stability of the object's composition
If the positioning sleeves are in surface contact with the legs to ensure stability, then the stability of linear movement is improved, but the resistance force increases
Solution Approach 1:
The patent segments the contact interface between positioning sleeves and legs by introducing positioning features (such as ridges or protrusions) on the sleeves that contact the legs at discrete points rather than across the entire surface. This segmentation reduces the contact area from surface-to-surface to point-or-line contact, thereby reducing resistance force while maintaining stability through the distributed positioning features.
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 solution effectively reduces resistance and ensures better stability of the linear movement of the movable leg in the fixed leg, improving the overall performance of the elevation table by allowing for smoother and more stable height adjustments.
Implementation Method 1
The first positioning sleeve comprises embedding holes formed in at least two sidewalls thereof and the embedding holes receive embedded pieces to be fit therein. The second positioning sleeve comprises embedding holes formed in at least two sidewalls thereof and the embedding holes receive embedded pieces to be fit therein. The first positioning sleeve and the second positioning sleeve are in point contact with surfaces of the movable leg and the fixed leg by means of the embedded pieces.
Data Source
AI summary
An elevation table includes a tabletop and a table leg frame mounted to the tabletop. The table leg frame includes a fixed leg, a movable leg insertable into the fixed leg, and an extendible/retractable bar arranged inside the fixed leg and the movable leg. The movable leg has an end connected to the tabletop and an opposite end receiving a first positioning sleeve to fit thereto and insertable into the fixed leg. The fixed leg has an end into which the movable leg is insertable and receives a second positioning sleeve to fit thereto. The first and second positioning sleeves each include embedding holes formed in at least two sidewalls thereof and the embedding holes receive embedded pieces to be fit therein. The first and second positioning sleeves are in point contact with surfaces of the movable leg and the fixed leg by means of the embedded pieces.