Universal Noise Reducing Elements for Variable Tire Sizes
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Solution Overview
Problem
The industrial production of tires with noise-reducing elements is inefficient due to the need for constant setup and tuning of apparatuses to handle different tire sizes, leading to interruptions and increased costs, as each tire size requires specific noise-reducing elements for effective noise reduction.
Innovation Solution
A method and apparatus for applying noise-reducing elements where all elements have the same shape and dimensions, with the ability to orient them based on tire size, allowing for sequential feeding and application to tires of varying sizes without the need for frequent adjustments, using a conveyor system and a picking up and application device controlled by a unit that sets the orientation of the elements according to the tire dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different noise-reducing elements are used for different tire sizes, then noise reduction effectiveness is improved, but apparatus setup complexity and production interruptions increase
Solution Approach 1:
The patent applies universality by designing a single standardized noise-reducing element that can be used across multiple tire sizes. The element has universal dimensions (150-200mm length, 100-160mm width, 10-50mm thickness) that allow it to fit various tire cavities without requiring different element types, thereby reducing apparatus setup complexity while maintaining noise reduction effectiveness through proper orientation and positioning.
Solution Approach 2:
The patent applies parameter changes by varying the orientation parameters of the same noise-reducing element based on tire size. The control unit adjusts the orientation angle and positioning coordinates of the element according to the detected tire dimensions, allowing a single element design to adapt to different tire sizes without changing the element's physical parameters.
2Manufacturing precision
If apparatus is constantly set up and tuned for different tire sizes, then handling accuracy is improved, but productivity decreases
Solution Approach 1:
The patent applies dynamics by implementing a dynamic adjustment system where the control unit automatically modifies the orientation and positioning parameters of the noise-reducing element based on real-time tire size detection. This dynamic adaptation eliminates the need for manual apparatus setup and tuning for each tire size, maintaining high handling accuracy while continuously improving productivity by preventing production interruptions.
Solution Approach 2:
The patent applies feedback through a control unit that detects tire size parameters and uses this information to automatically adjust the orientation and positioning of the noise-reducing element. This closed-loop feedback system ensures accurate element placement for each tire size without requiring manual intervention, thereby maintaining manufacturing precision while maximizing production efficiency.
3Reliability
If multiple noise-reducing element types are managed, then noise reduction performance is improved, but logistics complexity increases
Solution Approach 1:
The patent applies homogeneity by standardizing the noise-reducing element design with uniform dimensions (150-200mm length, 100-160mm width, 10-50mm thickness) and consistent porous material composition across all tire sizes. This homogeneous element design simplifies logistics by eliminating the need to manage multiple element types, while noise reduction performance is maintained through optimized orientation and positioning controlled by the control unit.
Data Source
AI summary
The present invention relates to a method and an apparatus for applying noise reducing elements to tyres for vehicle wheels. Noise reducing elements (12), all equal to each other, are fed in succession on a conveyor (20) according to a predetermined path and are oriented on the predetermined path all in the same way. Tyres (2) of different sizes (C, P) are fed in succession on a conveyor (20) up to an application station (34). In the application station (34), the noise reducing elements (12) are picked up from the conveyor (20) and applied to radially inner surfaces of the tyres (2). The application comprises: arranging the noise reducing elements (12) with the larger dimension (L) directed in a circumferential direction or arranging the noise reducing elements (12) with the larger dimension (L) directed in an axial direction as a function of the sizes (C, P) of the tyre (2) in which they are applied.