Pneumatic Tire Inner Surface Fastener with Embedded Anchoring Elements
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Solution Overview
Problem
Existing pneumatic tire attachment methods using surface fasteners face issues with engagement force deterioration over time due to deformation and compaction from high-speed rolling, leading to inconsistent attachment strength and reduced durability.
Innovation Solution
A pneumatic tire with a mechanical fastener composed of two components fixed together using a resin or resin-elastomer blend with anchoring elements embedded in the tire inner surface, providing a strong and consistent engagement force through a small engaging area and reinforced with filaments, and treated for enhanced adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If surface fasteners are used to attach objects to the tire inner surface, then initial engagement force is achieved, but engagement force deteriorates over time due to deformation and compaction from high-speed rolling
Solution Approach 1:
The fastening system is divided into two distinct components: a mechanical fastener component and a fixing member component. The mechanical fastener provides immediate engagement force, while the fixing member with anchoring elements provides long-term retention. This segmentation allows each component to specialize in its function, resolving the contradiction between initial engagement and long-term durability.
Solution Approach 2:
The mechanical fastener is embedded within or integrated with the fixing member that contains anchoring elements. The fastener components are positioned to engage with each other while the fixing member extends into the tire inner surface. This nested structure allows the smaller fastening mechanism to be contained within the larger fixing structure, combining immediate engagement with long-term anchoring.
2Ease of operation
If surface fasteners are used for attachment, then engagement is achieved on surface regardless of misalignments, but attachment strength becomes inconsistent and varies positionally
Solution Approach 1:
The fixing member is designed with anchoring elements distributed across its surface area, creating zones of enhanced attachment. The anchoring elements provide localized engagement points that distribute the attachment force across multiple locations on the tire inner surface. This local quality enhancement ensures consistent attachment strength regardless of positional variations or misalignments during installation.
3Strength
If mechanical fasteners are embedded in tread rubber and vulcanized, then attachment strength is improved, but durability may not be achieved depending on fastener shape and position
Solution Approach 1:
The fixing member is constructed from a composite structure combining a base material with anchoring elements. This composite design integrates multiple functional properties: the base material provides structural support and adhesion to the tire, while the anchoring elements provide mechanical interlocking. This composite approach ensures both high attachment strength and long-term durability by combining complementary material properties and structural features.
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 solution achieves a consistent and durable attachment of objects with specific functions on the tire inner surface, maintaining engagement force over extended periods and withstanding extreme usage conditions.
Implementation Method 1
The fixing member includes anchoring elements disposed only on a side facing the tire inner surface. The anchoring elements are at least partially embedded in the tire inner surface.
Implementation Method 2
The at least two components are fixed together while sandwiching a fixing member made from a resin or a resin composition composed of a blend of a resin and an elastomer.
Data Source
AI summary
Provided is a pneumatic tire including one fastener in a separable pair of mechanical fasteners, the one fastener being disposed on the tire inner surface. The one fastener includes at least two components. The at least two components are fixed together while sandwiching the fixing member made from a resin or a resin composition composed of a blend of a resin and an elastomer. The fixing member includes anchoring elements disposed only on the side facing the tire inner surface. The anchoring elements are at least partially embedded in the tire inner surface.