Textile-Coated Elevator Guide Reduces Cabin Noise
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Solution Overview
Problem
Current pneumatic vacuum elevator systems face challenges with wheel adjustment and maintenance difficulties, excessive weight, noise, and vibration due to heavy wheels, which affect ride quality and operational efficiency.
Innovation Solution
A pneumatic vacuum elevator guide system featuring moveable rail guides with rigid sheets and textile materials attached to tubes, incorporating adjustable spring assemblies and flanges for optimal alignment and friction adjustment, reducing noise and vibration while being lightweight and easy to maintain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If heavy wheels are used to stabilize the cabin, then the cabin stability is improved, but the weight of the guide system increases and noise/vibration increases
Solution Approach 1:
The patent changes the material parameters of the guide system from heavy metal wheels to lightweight materials such as aluminum extrusions and composite panels. This parameter change maintains structural integrity and stability while significantly reducing weight and associated noise/vibration.
Solution Approach 2:
The guide system employs composite construction combining aluminum extrusions, composite panels, and textile materials. These composite materials provide the necessary mechanical strength and stability for cabin guidance while being substantially lighter than traditional solid metal wheel assemblies.
2Stability of the object's composition
If heavy wheels are used to stabilize the cabin, then the cabin stability is improved, but the noise and vibration increase reducing ride quality
Solution Approach 1:
The patent changes the material damping parameters by using composite materials and textile components instead of hard metal wheels. These materials have higher inherent damping properties that absorb vibrations and reduce noise generation during cabin movement.
Solution Approach 2:
The guide system uses intermediate elements such as textile materials and composite panels that mediate between the cabin and the guide rail. These intermediaries reduce direct metal-to-metal contact and vibration transmission, thereby lowering noise and improving ride comfort.
3Reliability
If fixed wheel assemblies are used for guiding the cabin, then the guiding function is achieved, but the adjustment and maintenance difficulty increases
Solution Approach 1:
The guide system is divided into modular segments including separate aluminum extrusions, composite panels, and adjustable components. This segmentation allows individual parts to be easily accessed, adjusted, or replaced without affecting the entire guide system, significantly improving maintainability.
Solution Approach 2:
The guide system incorporates dynamic adjustment capabilities where components can be repositioned and reconfigured. This allows the system to adapt to different installation conditions and facilitates easy maintenance by enabling quick adjustment of guide positions and tensions.
4Reliability
If heavy wheel assemblies are used, then the guiding capability is sufficient, but the energy consumption increases
Solution Approach 1:
The patent changes the mass parameter of the guide system by using lightweight aluminum and composite materials instead of heavy metal wheels. This reduction in mass directly decreases the energy required to accelerate and decelerate the guide components during cabin operation.
Solution Approach 2:
The lightweight construction of the guide system acts as a form of counterweight optimization, reducing the gravitational load that the motor must work against during cabin movement, thereby lowering overall energy consumption.
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 provides a stable, quiet, and efficient ride by minimizing cabin vibration and noise, facilitating easy adjustment and maintenance, and reducing the weight of the guide system, thereby enhancing user experience and operational efficiency.
Implementation Method 1
a tube attached to the sheet of rigid material wherein the tube has a first textile material attached thereto
Implementation Method 2
an adjustable spring assembly
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
A first adjustable cabin rail guide is moveably attached to a structural member of an elevator cabin. A second adjustable cabin rail guide is similarly moveably attached to a structural member of an elevator cabin. The first and second adjustable cabin rail guides cooperate together to reduce sound and increase operational efficiency. A piece of textile or similar material is attached to a tube forming the friction portion of the guide. The use of textile thereby reduces the sound of the travel upon the rail associated with the inner portion of the elevator cylinder as the cabin transits therein.