Radial Strap Tire Module Fixing Device
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Solution Overview
Problem
Large electronic modules fixed to the internal wall of tires, particularly in heavy vehicles, face durability issues due to significant tire deflections and deformations, which can lead to interference with metal reinforcements and increased stress on fixing means, necessitating a robust and interference-minimizing attachment solution.
Innovation Solution
A device comprising a base with two independent, radially oriented straps fixed to the tire's sidewall, which includes an integral strap and optional appendages or relief shapes to distribute and exert forces for secure attachment, using materials like unreinforced rubber for flexibility and elastic properties to withstand deformations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single fixing means is used to attach the electronic module to the tire inner wall, then the device complexity is reduced, but the reliability of the fixing deteriorates under significant tire deflections and deformations
Solution Approach 1:
The fixing device is divided into multiple independent straps (at least two) that are distributed around the module's perimeter. Each strap acts as an independent fixing element, so that if one strap experiences stress or deformation, the other straps continue to provide securing force, maintaining overall reliability without requiring a complex integrated structure.
Solution Approach 2:
The straps are positioned at specific locations around the module's perimeter, with each strap localized to provide support at critical points. This distributed local support system provides reliable fixing under deformation while keeping each individual strap simple in structure, avoiding the need for a single complex fixing mechanism.
2Ease of operation
If the electronic module is positioned in the crown area of the tire, then the ease of operation is improved, but the reliability deteriorates due to interference with metal reinforcement elements
Solution Approach 1:
The electronic module is extracted from the traditional crown area location and repositioned to the tire sidewall area. This relocation removes the module from the zone with metal reinforcement elements (crown and belt reinforcements) that cause interference, while still allowing practical installation and operation. The fixing device adapts to this new location by using straps that can be securely attached to the sidewall inner surface.
Solution Approach 2:
The fixing device with its flexible straps acts as an intermediary between the module and the tire sidewall. This intermediary system allows the module to be securely mounted in the sidewall area (away from metal reinforcements) while providing stable attachment that accommodates tire deformations, thus enabling reliable operation without direct interference from structural elements.
3Strength
If a rigid fixing structure is used to secure the module, then the strength of the fixing is improved, but the reliability deteriorates due to inability to withstand tire deformations
Solution Approach 1:
The fixing straps are made of flexible material that can bend and deform with the tire as it undergoes deflection and deformation. This flexibility allows the fixing structure to maintain its securing function throughout the tire's operational deformations, preventing the module from detaching or being damaged, while still providing sufficient holding strength through the distributed strap configuration.
Solution Approach 2:
The fixing device transitions from a static rigid structure to a dynamic flexible system that adapts its shape and position in response to tire deformations. The straps can dynamically adjust their configuration as the tire deflects radially and deforms during operation, maintaining continuous secure attachment without requiring excessive fixed strength that would be incompatible with tire flexibility.
4Measurement precision
If the module length is increased to meet measurement requirements, then the measurement precision is improved, but the reliability deteriorates due to increased stress on fixing means during tire deflections
Solution Approach 1:
The module is secured by multiple distributed straps positioned at different locations along its perimeter, rather than by a single集中 fixing point. This segmentation of the fixing system distributes the stress caused by tire deflections across multiple attachment points, preventing any single strap from bearing excessive load that would compromise reliability, while still allowing the full-length module to function for precise measurements.
Solution Approach 2:
The straps are positioned at specific critical locations around the module's perimeter, providing localized support at points most susceptible to deformation forces. This localized distribution of fixing points along the module length provides adequate support for the extended measurement device without requiring excessive overall fixing strength, maintaining reliability under tire deflection conditions.
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 ensures durable and interference-minimized attachment of electronic modules, preventing detachment and damage during tire deformations, validated through testing on vehicles simulating mine and quarry conditions.
Implementation Method 1
using materials like unreinforced rubber for flexibility and elastic properties to withstand deformations
Data Source
Figure 1
Figure 2a~2b
AI summary
The invention concerns a device for fixing a module on the inner wall of a tyre. According to the invention, the device consists of a base secured to the tyre, the base comprising at least two independent straps secured to the tyre and means for locking the module, the straps extending radially.