Tire Sensor Mount With PTFE Support and Stable Adhesion
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Solution Overview
Problem
Existing devices for fixing sensors to tires suffer from poor stability, inadequate adhesion to the tire, and heat generation due to friction, which can affect temperature measurements.
Innovation Solution
A device with a particular structure featuring a base and cover with fin-shaped protuberances and a truncated pyramid shape, which improves stability and adhesion while reducing friction points and heat generation, and includes a method using adhesive layers for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the base is made of non-stick material (PTFE) to improve movement freedom, then the sensor can move freely with respect to the tire, but the adhesion of the device to the tire deteriorates
Solution Approach 1:
The device is divided into two distinct parts: a PTFE base that provides non-stick properties for sensor movement, and a separate adhesive layer that provides strong adhesion to the tire. This segmentation allows each component to fulfill its specific function without compromise - the PTFE base maintains movement freedom while the adhesive layer ensures reliable tire attachment.
2Ease of operation
If the protective layer is made of PTFE to improve movement with respect to sensor and tire, then movement is improved, but the stability in retaining the sensor in the cover deteriorates
Solution Approach 1:
The cover is designed with differentiated local properties: the interior surface features a rough or textured finish that provides high friction and secure retention of the sensor, while the exterior surface maintains smooth PTFE properties for easy movement relative to the tire. This local quality differentiation allows the cover to simultaneously achieve sensor stability and movement freedom.
3Stability of the object's composition
If the sensor is in contact with the base and cover to ensure positioning, then positioning stability is improved, but heat generation due to friction increases
Solution Approach 1:
A thin adhesive layer is introduced as an intermediary between the sensor and the base/cover surfaces. This adhesive layer serves as a mediator that provides sufficient friction for stable positioning while having low friction coefficients that reduce heat generation. The adhesive acts as a thermal and friction buffer, maintaining sensor stability without transferring excessive heat from the PTFE surfaces.
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 ensures high stability and secure adhesion of the sensor to the tire, reduces heat due to friction, and protects both the tire and sensor from mechanical stresses, while maintaining reliable tire pressure measurement.
Implementation Method 1
The base and/or the cover of the device may comprise particular notches and/or grooves which favor the cooling of the sensor and/or the deformation of the device to adapt to corresponding deformations of the tire, so as to improve the reliability and resilience of the device during use. The method for fixing the sensor uses at least one layer of adhesive applied both under the cover and under the base, in order to improve the adhesion of the device to the tire.
Implementation Method 2
The base and the cover preferably comprise fin-shaped protuberances which improve their mutual stability and their attachment to the tire.
Implementation Method 3
Thanks to a preferred shape of the seat of the base, the lower edge of the sensor is spaced from the lower edge of the seat, so as to avoid wear of the sensor and/or of the base in an area of high mechanical stress.
Data Source
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AI summary
Device for fixing a sensor (2) to a tire (5), which device comprises at least one base (1) provided with a seat (1a) adapted to house at least partially a first portion of at least one sensor (2) for tires, and at least one cover (3) adapted to house at least partially a second portion of the sensor (2), wherein the cover (3) comprises at least one seat (3a) adapted to house at least partially the base (1), wherein the base (1) comprises at least one first portion (1b) which is arranged adjacent to the seat (1a) of the base (1) and at least one second portion (1c) which at least partially surrounds the seat (1a) of the base (1), wherein the cover (3) comprises at least one first portion (3b) which is adapted to at least partially surround the seat (3a) of the cover (3) and at least one second portion (3c) which is adapted to at least partially surround the second portion of the sensor (2), wherein the first portion (1b) of the base (1) comprises at least one support surface (1e) on one side of the base (1) opposite the second portion (1c) of the base (1), wherein the first portion (3b) of the cover (3) comprises at least one support surface (3e) on a side of the cover (3) opposite the second portion (3c) of the cover (3), wherein the first portion (1b) of the base (1) comprises at least one protuberance (1d) which at least partially surrounds the first portion (1b) of the base (1). The present description also relates to a method which can use said device to fix a sensor to a tire.