Tire Sensor Attachment Seat With Anti-Rotation Flange Lock
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Solution Overview
Problem
Existing functional components attached to tire inner surfaces, such as sensors, are prone to detachment and rotation due to large impact forces encountered on uneven roads, particularly pot holes, compromising their functionality and durability.
Innovation Solution
A functional component attachment seat with a surrounding wall, flange, and engagement protrusions that securely engage with notched parts on the component, providing robust attachment and preventing detachment and rotation even under radial impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the functional component is completely sealed, then the functional component is protected, but the attachment reliability under radial impact deteriorates
Solution Approach 1:
The attachment seat is divided into a body portion and a flange portion that are separated by a radial groove. This segmentation allows the flange to protrude axially and provide enhanced radial support without requiring complex sealing structures, thereby improving attachment reliability while maintaining simple device complexity.
Solution Approach 2:
The attachment structure transitions from a two-dimensional planar design to a three-dimensional structure with axial protrusion of the flange. This dimensional change enables the flange to effectively resist radial impact forces, improving attachment reliability without increasing sealing complexity.
2Weight of moving object
If the functional component is made small and simple-shaped, then weight and resource are reduced, but attachment stability under impact deteriorates
Solution Approach 1:
The attachment seat incorporates a resilient member that can elastically deform under radial impact forces. This dynamic response allows small, simple-shaped functional components to maintain secure attachment during impact events, improving reliability without increasing component weight or complexity.
Solution Approach 2:
The attachment seat uses composite construction with the body portion, flange portion, and resilient member working together. This composite structure provides enhanced attachment stability for small functional components under impact while maintaining their lightweight and simple characteristics.
3Strength
If the functional component attachment seat uses a ring-shaped recessed part structure, then stress concentration is suppressed, but attachment reliability under radial impact deteriorates
Solution Approach 1:
The attachment seat is segmented into body and flange portions with the flange axially protruding from the body. This segmentation creates an enhanced attachment structure that maintains good stress distribution while significantly improving reliability under radial impact forces.
Solution Approach 2:
The attachment structure extends into the axial dimension with the flange protrusion, transforming the conventional ring-shaped recessed design. This three-dimensional configuration maintains stress distribution benefits while adding radial impact resistance capability.
Data Source
Figure 1
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AI summary
A functional component attachment seat (100) is used for attaching a functional component (200) to a tire inner surface (30) of a pneumatic tire. The functional component attachment seat (100) includes a surrounding wall (110) extended from the tire inner surface (30) to an inner side in a tire radial direction to surround a side face (210) of the functional component (200), and a flange (130) continued to the surrounding wall (110) to lock a peripheral part (221) at the inner side in the tire radial direction of the functional component (200). The functional component attachment seat (100) includes an engagement protruded part (131, 132) to be engaged with a notched part (231, 232) formed in a part of the peripheral part (221) and extended in a tire width direction or a tire circumferential direction.