Cable Clamping Device for Tire Sensor Housing
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Solution Overview
Problem
Current methods for fixing electronic measurement units to vehicle tire rims are prone to tearing, damage, and rupture during tire mounting and dismounting due to the use of strapping, which lacks resistance and adaptability to conical rim profiles, and increases the assembly complexity and cost.
Innovation Solution
A clamping device using a stainless steel cable that makes multiple turns around the rim, providing an elastic connection to allow axial displacement and prevent damage, with a connection module that ensures secure fixing and sliding under stress, adapting to various rim profiles through tensioning and elasticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If strapping is used to fix the electronic box to the rim, then the box is held in position, but the strapping lacks resistance and can be torn during mounting and dismounting phases
Solution Approach 1:
The patent changes the physical parameters of the fixing element by transitioning from a flat strapping structure to a cable with circular profile. This parameter change increases the cable's resistance to tearing and rupture while maintaining its fixing function, directly resolving the contradiction between strength and reliability.
Solution Approach 2:
The patent employs a cable made of stainless steel wires, combining the strength and elasticity of metal materials. This composite structure provides both the necessary strength to resist rupture during mounting/dismounting and the elasticity to accommodate rim profile variations, simultaneously improving strength and reliability.
2Adaptability or versatility
If strapping is used to fix the electronic box, then the box is secured to the rim, but the strapping cannot adapt to conical rim profiles due to its fixed diameter
Solution Approach 1:
The cable's circular profile and flexibility allow it to adapt to varying diameters of conical rim profiles, unlike rigid strapping with fixed diameter. This parameter change enables the fixing device to accommodate different rim shapes without increasing manufacturing complexity.
Solution Approach 2:
The cable introduces dynamic adaptability to the fixing system, allowing it to conform to the rim's conical profile through its inherent flexibility and elasticity. This dynamic characteristic enables the same cable structure to adapt to various rim profiles while maintaining a simple manufacturing process.
3Reliability
If a base is coupled to the sensor to fix it to the rim, then the sensor is securely mounted, but the increased height creates an obstacle during assembly and disassembly phases
Solution Approach 1:
The patent extracts the base structure from the sensor assembly, eliminating the height increase that caused interference during tire assembly/dismounting. The cable-based fixing system attaches directly to the sensor housing without requiring an additional base, thereby maintaining mounting security while improving ease of operation.
Solution Approach 2:
Instead of adding a base to secure the sensor (which increased height), the patent inverts the approach by using a cable that loops around the rim and secures the sensor from above. This inversion reduces the assembly's height profile while maintaining secure mounting, eliminating the obstacle during assembly operations.
4Force
If a flat section stainless steel strap is used to fix the sensor box, then the box is held firmly, but the strap cannot undergo parallel axial displacement beyond 40 mm without plastic deformation
Solution Approach 1:
The patent changes the structural parameters from a rigid flat strap to a flexible cable with circular profile. This parameter change enables the cable to undergo elastic axial displacement of greater than 40 mm without plastic deformation, while maintaining sufficient holding force through its elastic properties and tensioning mechanism.
Solution Approach 2:
The stainless steel cable combines the strength of metal with elastic properties, creating a composite fixing element that can withstand both the holding force requirements and the displacement tolerance needed for rim variations and assembly movements, unlike the rigid flat strap.
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 cable-based clamping system enhances resistance to rupture, facilitates axial movement, and reduces costs while maintaining secure positioning, allowing the sensor housing to slide or rotate on the rim, thus avoiding damage and adapting to different rim shapes.
Implementation Method 1
forms an elastic connection allowing axial displacement of the housing on the rim
Data Source
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AI summary
The invention relates to a rim clamping device (200) for an electronic housing (100) for measuring pressure and/or temperature inside a tire. It is notable in that it comprises at least one cable (300) which, by making at least one turn around the rim (200) and pressing the housing (100) against the surface (210) of the rim (200), forms an elastic connection allowing axial movement of the housing (100) on the rim (200), thus preventing the housing (100) from bearing the stress of the tire during mounting and dismounting. The invention also relates to a housing adapted to such a device. Applications: mounting a sensor in a vehicle wheel.