Telescopic Table Support with Cable Synchronization to Prevent Tilting
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Solution Overview
Problem
Height-adjustable tables with multiple support elements face issues of tilting and jamming due to asynchronous movement of legs, and existing solutions with gas pressure springs struggle to meet minimum adjustable height requirements due to installation dimension constraints.
Innovation Solution
A support device with coupled extension components and a synchronization mechanism using cable-like elements and deflection rollers ensures synchronous displacement of support elements, minimizing load on guides and preventing tilting, while a gas pressure spring is used to facilitate easy height adjustment with reduced installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple support elements are used to safely support and lift loads, then load-bearing capacity is improved, but asynchronous movement causes tilting and jamming
Solution Approach 1:
A cable-type synchronization element acts as an intermediary between multiple support elements, mechanically coupling them to ensure synchronous movement. The cable transmits displacement forces between support elements, preventing tilting and jamming while maintaining independent load-bearing capability of each element.
Solution Approach 2:
The synchronization device provides mechanical feedback between support elements through the cable system. When one support element moves, the cable transmits this movement to other support elements, creating a feedback mechanism that ensures they move synchronously and maintain proper alignment.
2Length of moving object
If gas pressure springs with sufficient stroke are used to meet minimum adjustable height requirements, then height adjustment range is improved, but installation dimension becomes too large
Solution Approach 1:
The lifting column is divided into multiple extension components (first, second, and third extension components) that can extend and retract relative to each other. This segmentation allows the system to achieve a long adjustable height range while keeping the retracted length (installation dimension) compact, as components nest within each other when not in use.
Solution Approach 2:
The extension components are arranged in a nested configuration where the second extension component is disposed between the first and third extension components. This nesting allows multiple components to occupy minimal space when retracted, reducing the installation dimension while providing sufficient stroke for height adjustment when extended.
Data Source
Figure 1
Figure 1a
Figure 2
AI summary
A support device for a height-adjustable table (1) comprises a first (3) and a second support element (3'), each with a first, a second, and a third extension section (5, 5', 6, 6', 7, 7') arranged to be displaceable relative to one another in order to effect a change in length (L) of the support elements (3, 3'). The first (5, 5'), the second (6, 6'), and the third extension section (7, 7') are coupled such that a displacement of the second (6, 6') relative to the first extension section (5, 5') synchronously causes a displacement of the third (7, 7') relative to the second extension section (6, 6'). The support device has a synchronization device designed to synchronize between the first and second support element (3, 3'), the displacement of the second boom section (6, 6') to the first boom section (5, 5') or the displacement of the third boom section (7, 7') to the second boom section (6, 6').