Vertically Moving Device Platform Stability via Wire Looping
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Solution Overview
Problem
Existing vertically moving devices experience instability when one wire becomes stretched, leading to uneven wire lengths and an unstable platform due to changes over time.
Innovation Solution
A spool mechanism that feeds out wires to form loops, with looped portions running over multiple wire-guiding rotating bodies, and guide rails that restrict horizontal movement, ensuring even suspension and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If four single-line wires are used to suspend the platform, then the platform can be vertically moved, but the platform becomes unstable when one wire stretches longer than the others
Solution Approach 1:
The patent divides the wire suspension system into multiple independent wire groups, where each group has its own spool mechanism and guiding structure. This segmentation allows each wire to be independently controlled and guided, preventing instability when one wire stretches differently than others.
Solution Approach 2:
The patent introduces wire-guiding rotating bodies and downwardly guiding rotating bodies as intermediary components between the wires and the platform. These intermediaries guide the wires' movement and distribute the load evenly, ensuring stable platform suspension even when wire lengths vary.
2Length of moving object
If the amount of wire fed out is adjusted to control platform height, then the platform can reach predetermined heights, but uneven wire feeding causes platform instability
Solution Approach 1:
The patent employs guiding structures that provide feedback on wire positioning and tension distribution. The wire-guiding rotating bodies and downwardly guiding rotating bodies ensure that wires are fed out evenly and consistently, maintaining platform stability during height adjustment.
Solution Approach 2:
The patent changes the physical state and arrangement of wires from simple suspension to looped configurations running over multiple rotating bodies. This parameter change allows for controlled wire feeding while maintaining even tension distribution and platform stability.
3Stability of the object's composition
If looped portions of wires are run over multiple wire-guiding rotating bodies, then platform stability is maintained when wires stretch, but the device complexity increases
Solution Approach 1:
The wire-guiding rotating bodies and downwardly guiding rotating bodies serve multiple functions: they guide the wires, distribute load, maintain tension equilibrium, and prevent horizontal displacement. This multi-functionality justifies the additional components by eliminating the need for separate stabilization mechanisms.
Solution Approach 2:
The patent transitions from a simple vertical wire suspension to a three-dimensional configuration where wires run over multiple rotating bodies in space. This dimensional change provides additional degrees of freedom for wire routing, enabling stable platform suspension through geometric distribution of guiding points.
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 solution maintains platform stability even when wires stretch, allowing for smooth vertical movement without swaying, by distributing the load evenly and preventing horizontal displacement.
Implementation Method 1
the looped portions of the at least two wires fed out from the spool mechanism are run over four wire-guiding rotating bodies
Implementation Method 2
a spool mechanism for spooling at least two wires that are fed out to form loops
Implementation Method 3
a plurality of guide rails which are located in a neighboring area surrounding the vertically movable platform and which are long in a vertical direction
Data Source
AI summary
A vertically moving device includes a spool mechanism for spooling at least two wires that are fed out to form loops and a vertically movable platform suspended by looped portions of the at least two wires fed out from the spool mechanism. The vertically movable platform includes at least four wire-guiding rotating bodies over which the looped portions of the wires are run. And a looped portion of one of the wires is run over at least two of the wire-guiding rotating bodies, and a looped portion of the other of the wires is run over at least two other of the wire-guiding rotating bodies