Height-adjustable table
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Solution Overview
Problem
Height-adjustable tables with hydraulic or motorized mechanisms are bulky, heavy, and inflexible, making them unsuitable for frequent position changes and space-saving storage.
Innovation Solution
A height-adjustable table with a mechanism featuring a winding disk and spring element, where the band is wound onto the disk to adjust the table height manually in stepless increments, supported by a spring force for easy lifting and lowering, and a locking mechanism for stable positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hydraulic or motorized mechanisms are used for height adjustment, then the height adjustment comfort is improved, but the device weight and volume increase
Solution Approach 1:
The spring element acts as a counterweight mechanism that compensates for the weight of the tabletop. When the user rotates the winding disk, the spring element winds up and stores energy, automatically supporting the tabletop weight and assisting the user during height adjustment, thereby reducing the effort required while avoiding heavy hydraulic or motorized systems.
Solution Approach 2:
The spring element provides self-service by automatically supporting the tabletop weight and assisting the user during height adjustment. The mechanism uses the user's rotational input to wind the spring, which then stores energy and provides continuous assistance throughout the adjustment range, eliminating the need for external power sources or heavy actuators.
2Ease of operation
If hydraulic or motorized mechanisms are used for height adjustment, then the height adjustment comfort is improved, but the device complexity increases
Solution Approach 1:
The spring element provides self-service by automatically supporting the tabletop weight and assisting the user during height adjustment. The mechanism uses the user's rotational input to wind the spring, which then stores energy and provides continuous assistance throughout the adjustment range, eliminating the need for external power sources or heavy actuators.
Solution Approach 2:
The invention replaces complex hydraulic or motorized mechanical systems with a simple spring-based mechanical assistance system. The winding disk connected to the spring element creates a lightweight mechanical advantage system that provides smooth, assisted height adjustment without the complexity of fluids, electronics, or heavy motors.
3Stability of the object's composition
If the table top is made heavy for stability, then the stability is improved, but the ease of moving and storage is worsened
Solution Approach 1:
The spring element acts as a counterweight mechanism that compensates for the weight of the tabletop. When the user rotates the winding disk, the spring element winds up and automatically supports the tabletop weight, making the tabletop easy to move and reposition despite its size, while maintaining stability when in use.
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 convenient, efficient, and space-saving manual height adjustment of the table top between seated and standing heights, with the spring element providing support during lifting and preventing unintentional sagging, allowing for easy storage and transport without the need for tools.
Implementation Method 1
The spring element is maximally tensioned or deflected when the tabletop is at the lower level and minimally tensioned when the tabletop is at the upper level
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
In a table (1) with a height-adjustable table top (2), support structures (3) and at least one band (4), the at least one band (4) connects the support structures (3) and the table top (2) to one another, so that the table top (2) is carried by the supporting structures (3) by being suspended from the supporting structures (3) by means of the at least one strap (4). According to the invention, the table (1) is equipped with a mechanism (7) for manually adjusting the height of the table top (2). The mechanism comprises a winding disc (71) which is rotatably mounted on the table top (2) and a spring element (73) which is force-connected to the winding disc (71), the at least one band (4) being connected to the winding disc ( 71) is connected so that it can be wound onto the winding disc (71). The tabletop (2) is positioned between a lower height, at which the at least one band (4) is minimally wound onto the winding disc (71), and an upper height, at which the at least one band (4) is maximally wound onto the winding disc (71 ) is coiled, adjustable. The spring element (73) is maximally tensioned when the tabletop (2) is at the lower level, and minimally tensioned when the tabletop (2) is at the upper level.