Pneumatic Tire Locking Fastener for Stable Object Attachment
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Solution Overview
Problem
Existing methods for attaching objects with specific functions to pneumatic tires, such as mechanical fasteners, face challenges in maintaining a stable and strong engagement over time, especially with large or heavy objects, due to variations in engagement force and positional misalignment, leading to potential detachment during high-speed rotation.
Innovation Solution
A pneumatic tire design featuring a pair of mechanical fastener members with a lock mechanism, where one member is embedded in the tire and the other is exposed, allowing for secure engagement and locking, with a base and cover part configuration that sandwiches a tire member or reinforcing member, providing a strong fixing strength and engagement force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If surface fasteners are used to attach objects to the tire inner surface, then surface engagement can be achieved without problems of slight misalignments, but the engagement force varies positionally within the tire and from tire to tire, and deteriorates over time due to repetitive deformation and compaction
Solution Approach 1:
The fastener is divided into two separate members: a first member embedded in the tire inner surface and a second member attached to the object. This segmentation allows each member to be optimized for its specific function - the first member provides a stable anchor point in the tire while the second member attaches to the object, resolving the issue of positional variation and deterioration affecting the entire fastener system.
Solution Approach 2:
The first fastener member is embedded in the tire inner surface before the object is attached. This preliminary action creates a stable, pre-positioned anchor point that eliminates misalignment issues and ensures consistent engagement force regardless of where the object is positioned on the tire inner surface.
2Strength
If mechanical fasteners are used to attach heavy objects to the tire, then strong engagement force can be achieved, but the engagement may be released during high-speed rotation due to centrifugal forces
Solution Approach 1:
The fastener system incorporates a lock mechanism that dynamically responds to the forces experienced during tire rotation. The lock mechanism activates under centrifugal force to prevent the second fastener member from detaching, while allowing easy attachment during installation. This dynamic adaptation maintains strong engagement during high-speed rotation without requiring excessive attachment force.
3Ease of manufacture
If a simple fastener design is used, then ease of manufacture is improved, but the fixing strength is insufficient to maintain engagement under extreme usage conditions
Solution Approach 1:
By dividing the fastener into two members embedded in the tire and attached to the object respectively, each component can be manufactured independently with optimized strength characteristics. The first member embedded in the tire can be designed with high strength to withstand rotation forces, while the second member attached to the object can be simpler, maintaining overall manufacturing ease while achieving sufficient fixing strength.
Solution Approach 2:
The first fastener member is embedded in the tire inner surface during tire manufacturing, establishing a strong, pre-positioned anchor point. This preliminary strengthening action allows the second member attached to the object to be simpler in design, as the critical load-bearing function is already provided by the embedded first member, thus maintaining ease of manufacture while achieving high fixing strength.
Data Source
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AI summary
The purpose of the present invention is to provide a pneumatic tire configured such that one of a pair of mechanical fastener members for attaching an object having a specific function is disposed on an inside surface of the pneumatic tire, the other being disposed on the side of the object having the specific function. The pair of mechanical fastener members is engaged with each other so as to install the object having the specific function on the inside surface of the pneumatic tire. The engagement of the pair of mechanical fastener members is not readily released, so that the object having the specific function can be stably and strongly held on the tire inner surface. The pneumatic tire according to the present invention includes: one or more mechanical fastener members (A) disposed on the tire inner surface, which is one member of the pair of mechanical fasteners that can be separated into two members (A), (B) and that can be engaged with each other and which is secured to the tire cavity side, and the mechanical fastener members (A), (B) include a lock mechanism for locking the engagement.