Telescopic Lift Table Linkage for Stable Height and Tilt Adjustment
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Solution Overview
Problem
Existing lift tables, such as those disclosed in Taiwan Utility Model No. M243106, face instability due to deformation of the main board under external forces, leading to an insecure structure when adjusting height and inclination.
Innovation Solution
A lift table design incorporating a base unit, a linking rod unit, and a telescopic actuator, where the top board is pivotably connected to the linking rods and actuated by a switch-operated mechanism, allowing for adjustable height and inclination, with a supporting beam enhancing structural strength and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the main board is made of wood to achieve ease of manufacture, then the manufacturing cost is reduced, but the structural strength and stability deteriorate under external forces
Solution Approach 1:
The patent replaces the wooden main board with a metal main board that has superior strength properties. The metal main board is connected to multiple supporting legs through linking rods, forming a composite structure that combines the ease of assembly with metal strength and stability, thereby resolving the contradiction between ease of manufacture and structural strength.
Solution Approach 2:
The patent divides the main board structure into multiple segments connected by linking rods to supporting legs. This segmentation allows the structure to distribute external forces across multiple connection points, enhancing overall structural strength while maintaining manufacturing simplicity through modular assembly.
2Ease of manufacture
If the main board is made of wood to reduce cost, then the manufacturing cost is reduced, but the stability deteriorates when the auxiliary board is subject to external force
Solution Approach 1:
The patent uses a metal main board instead of wood, providing inherent stability against deformation under external forces. The metal material maintains structural integrity while the overall design remains cost-effective through simple modular construction and standard hardware components.
Solution Approach 2:
The patent incorporates arc-shaped linking rods that provide curved structural elements. These curved components enhance structural stability by distributing stresses more effectively compared to straight rigid connections, while still using simple metal fabrication methods.
3Adaptability or versatility
If the telescopic rod is connected to the supporting board to enable height adjustment, then the adaptability is improved, but the structural reliability deteriorates due to deformation
Solution Approach 1:
The patent uses metal linking rods and a metal main board to create a reliable structure that can safely support the telescopic rod mechanism. The metal components prevent deformation under load, ensuring structural reliability while the telescopic rod provides the desired height adjustment adaptability.
Solution Approach 2:
The patent divides the supporting structure into multiple segments (main board, supporting legs, linking rods) that work together to support the telescopic rod. This segmentation allows the structure to maintain reliability through distributed load-bearing while enabling height adjustment through the telescopic mechanism.
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 design provides a stable and secure lift table with adjustable height and inclination, maintaining structural integrity by preventing deformation and ensuring reliable operation.
Implementation Method 1
a spring loaded inside the cylinder and biased towards the distal end of the cylinder, having a first end connected to the distal end of the cylinder and a second end connected to the pushing member
Implementation Method 2
The telescopic rod is received in the cylinder and includes a distal end having a contact point remote to the cylinder. The telescopic rod is connected to an adapter board through a supporting board and is then connected to a main board.
Data Source
AI summary
A lift table includes a base unit having a supporting beam connected between two legs. An elongated member is connected to a first linking rod, a second linking rod and a third linking rod and is pivotably connected to the legs. The first linking rod, the second linking rod and the third linking rod are pivotable together with the elongated member relative to the legs and are, thus, pivotable relative to the base unit. A telescopic actuator includes two ends pivotably connected to the supporting beam and the second linking rod, respectively. A top board unit is pivotably connected to the first and third linking rods and includes a switch operable to actuate the actuator to proceed with a telescope movement, causing the first and third linking rods to pivot relative to the legs, thereby lifting or lowering the top board unit.