Vehicle Suspension Fluid Spring Anti-Chafing Element
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Solution Overview
Problem
Generic vehicle vibration devices require frequent maintenance and have stability issues, leading to premature wear of components.
Innovation Solution
Incorporating a deformable fluid spring part with a flexible pressure chamber element and a deformation device, along with an additional anti-chafing element made of cellular polyurethane, such as Cellasto®, to reduce direct contact and prevent mechanical wear, allowing for longer maintenance intervals and increased durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the flexible pressure chamber element is used directly with deformation elements, then the device structure is simple, but the flexible pressure chamber element wears out quickly due to direct contact and friction
Solution Approach 1:
The patent introduces an anti-chafing element as an intermediary component between the flexible pressure chamber element and the deformation elements. This anti-chafing element absorbs the direct contact and friction, preventing wear of the flexible pressure chamber element while maintaining the overall structural simplicity of the device.
2Loss of time
If maintenance intervals are extended, then operational continuity is improved, but component wear increases over time
Solution Approach 1:
The anti-chafing element serves as a pre-installed protective cushion that anticipates and prevents wear of the flexible pressure chamber element. By providing this protective layer in advance, the device can operate for extended periods without maintenance while the anti-chafing element absorbs the wear instead of the critical flexible pressure chamber element.
3Reliability
If the flexible pressure chamber element is made more robust to prevent wear, then durability is improved, but the damping properties and flexibility are reduced
Solution Approach 1:
The patent divides the protective function into a separate anti-chafing element, allowing the flexible pressure chamber element to remain thin-walled and flexible for optimal damping performance. The anti-chafing element handles the wear protection function, while the flexible pressure chamber element focuses on providing spring characteristics and vibration damping.
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 significantly extends maintenance intervals and enhances the durability and damping properties of the vehicle vibration device, while maintaining effective spring characteristics and preventing vibration and rocking.
Implementation Method 1
the spring device comprises a deformable fluid spring part with a flexible pressure chamber element... wherein the deformable fluid element is at least partially deformed by the deformation elements when the upper part is deflected relative to the lower part
Implementation Method 2
the spring device can not only have a resilient but also a damping effect between the seat surface and the body
Implementation Method 3
an additional anti-chafing element is arranged between the flexible pressure chamber element and the deformation elements... the flexible pressure chamber element no longer comes into direct contact with the deformation elements
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a vehicle vibration device (12) of a vehicle seat (1) or a vehicle cabin with a lower part (13) and with an upper part (14) that is deflectable relative to this lower part (13), in which the upper part (14) and the lower part (13) are resiliently connected to each other by means of at least one suspension device (16) and in which the suspension device (16) comprises a deformable fluid spring part (20) with a flexible pressure chamber element (22) and a deformation device (21) with deformation elements (24, 25), wherein the deformable fluid element (20) is at least partially deformed by the deformation elements (24, 25) when the upper part (14) is deflected relative to the lower part (13) and wherein, according to the invention, an additional abrasion protection element (40) is arranged between the flexible pressure chamber element (22) and the deformation elements (24, 25).