Flexible Touch-Close Attachment for Secure Object Mounting on Deforming Tyres
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Solution Overview
Problem
Existing methods for attaching objects to tires interfere with the deformation of the tire during manufacturing and operation, causing stress and potential damage due to the attachment's interference with the tire's deformation processes.
Innovation Solution
A touch-close attachment system with flexible elongate elements integrated into the tire's wall, allowing the attachment to move freely and absorb deformations without interfering with the tire's operational deformation, using loops, hooks, or receptacles for secure object placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a touch-close attachment is used to attach an object to the tyre wall, then the object can be securely attached and removed, but the attachment interferes with the deformation of the tyre during manufacturing and operation
Solution Approach 1:
The first attachment part is made from a flexible material that can deform with the tyre wall, allowing the attachment to remain secure while accommodating the dynamic deformation of the tyre during manufacturing and operation without causing stress concentration or damage
Solution Approach 2:
The attachment system is designed to be dynamic rather than rigid, with the first attachment part capable of moving and deforming together with the tyre wall, thus maintaining attachment security while adapting to changing geometric conditions during tyre operation
2Strength
If the attachment is made rigid to ensure secure object placement, then the object remains firmly attached, but it prevents the tyre wall from deforming freely during operation
Solution Approach 1:
The first attachment part is constructed from flexible material that maintains sufficient holding force to secure the object while simultaneously allowing the tyre wall to deform freely during operation, eliminating the need for rigid structures that would constrain tyre movement
3Ease of manufacture
If the attachment pieces are applied before tyre curing, then integration is simpler, but the attachment interferes with the shaping and curing process
Solution Approach 1:
The first attachment part is integrated into the tyre wall during the curing process itself, rather than being applied before or after, allowing the attachment to be formed simultaneously with the tyre structure in a way that does not interfere with shaping or curing operations
Data Source
AI summary
A tire is described that includes a casing defining a cavity and equipped to receive an object, such as an electronic circuit, for example, through use of a two-part attachment, such as a touch-close attachment, of which a first part is fixed to a wall of the casing and a second part can be joined to the first part when placed in contact with the first part to keep the object on the casing in a service position. The first part of the attachment includes connection elements that are an integral part of the wall of the casing of the tire. The connection elements allow these two parts to have freedom to move relative to each other, thereby limiting the transmission of stresses, which affect the wall of the tire, to the object. The connection elements may be loops of flexible thread formed by the extremities of turns of a coiled thread integrated into the wall of the tire during the tire's manufacture.