Adjustable Rim Band Mounting for Tire Sensor Holders
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Solution Overview
Problem
Existing tire information acquisition devices face challenges in accommodating various rim sizes due to fixed band lengths and require multiple valve types for trucks, leading to high costs and complex product management.
Innovation Solution
A tire information acquisition device featuring a sensor unit, a cylindrical sensor holder made of flexible and air-permeable non-metallic material, and an adjustable band with a fastening portion that can be applied to different rim sizes, ensuring easy installation and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a band with a specific length is used to fix the sensor to the rim, then the sensor can be securely mounted, but the band cannot accommodate various rim sizes from passenger vehicles to trucks
Solution Approach 1:
The band incorporates a fastening portion that enables adjustable circumferential length, transforming a static fixed-length band into a dynamic adjustable-length band. This allows the same band to adapt to different rim sizes by changing its effective length through the fastening mechanism, resolving the contradiction between versatility and structural simplicity.
Solution Approach 2:
The band's circumferential length parameter is made changeable through the fastening portion, allowing the band to be adjusted to different lengths depending on the rim size. This parameter change capability enables a single band design to serve multiple applications from passenger vehicles to trucks without requiring multiple specialized bands.
2Ease of operation
If the sensor is fixed to the valve, then the installation position can be easily identified and rim assembly is simplified, but multiple dedicated valves are required for different valve types increasing product management complexity and cost
Solution Approach 1:
The band acts as an intermediary component that attaches to the rim rather than directly to the valve or sensor housing. This intermediary approach allows the sensor assembly to be mounted on the rim independently of the valve type, maintaining ease of installation while achieving universal compatibility with different valve configurations.
Solution Approach 2:
The band-based mounting system provides universal applicability across different valve types and rim configurations. Instead of requiring specialized mounting solutions for each valve type, the single band design serves multiple functions and adapts to various installation scenarios, reducing product management complexity.
3Strength
If a metallic sensor holder is used, then the holder provides structural strength, but it blocks radio waves transmitted by the sensor unit
Solution Approach 1:
The sensor holder is constructed from a flexible non-metallic material that forms a cylindrical shell structure. This flexible shell provides the necessary structural support while being inherently transparent to radio waves, eliminating the signal blocking problem associated with metallic holders. The flexibility also allows the holder to conform to the sensor unit and band assembly.
Solution Approach 2:
The sensor holder uses non-metallic composite or polymer materials that combine structural integrity with electromagnetic transparency. These materials provide the required mechanical strength to hold the sensor unit in place while allowing radio wave transmission, resolving the contradiction between strength and signal transmission.
4Reliability
If the band is made non-permeable to provide secure fastening, then the sensor unit is firmly attached, but air permeability of the ventilation hole is blocked
Solution Approach 1:
The band is constructed from a porous or permeable material that allows air to pass through while maintaining its fastening function. This porous structure ensures that the ventilation hole remains functional for air flow while the band provides reliable attachment of the sensor unit to the rim, resolving the contradiction between secure mounting and ventilation.
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 device is applicable to various rim sizes, ensures air permeability, prevents radio wave interference, and allows for easy replacement and reuse of the band, providing a low-cost, versatile solution for tire information acquisition.
Implementation Method 1
the sensor holder is composed of a non-metallic material having flexibility and air permeability
Implementation Method 2
radio waves transmitted by the sensor unit are not blocked
Data Source
AI summary
A tire information acquisition device includes: a sensor unit including a sensor configured to acquire tire information; a sensor holder formed in a cylindrical shape holding the sensor unit, and composed of a non-metallic material having flexibility and air permeability; and a band having a band circumferential length adjustable by a fastening portion provided at one end and configured to reversibly fasten an other end, and the band is fastened to a rim in a state where the band is inserted into the sensor holder.