Unified Composite Softball Bat Tip Structure
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Solution Overview
Problem
Conventional composite baseball and softball bats are prone to tampering due to their non-integrated end caps, which can be easily removed and reattached, and have a limited 'sweet spot' resulting in suboptimal performance compared to wood and metal bats.
Innovation Solution
A composite bat is manufactured with a single, solid structure by winding and interlacing composite material around a tapered mandrel, controlling fiber angles to expand the 'sweet spot' and using dissimilar materials to minimize vibration transmission, and a form-fitted insert seals the open tip to prevent tampering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a separate end cap is added to the tip of the bat barrel, then the manufacturing process is simplified and the bat can be assembled, but the bat becomes prone to tampering as the end cap can be easily removed and reattached
Solution Approach 1:
The patent merges the end cap and barrel into a single, unified composite structure. The composite material is molded to form both the barrel and tip as one integrated piece, eliminating the separate end cap that could be removed and reattached. This unification prevents tampering while maintaining manufacturing feasibility through single-step molding processes.
2Productivity
If conventional composite manufacturing methods are used with a separate end cap, then the bat can be produced, but the 'sweet spot' is limited resulting in suboptimal performance
Solution Approach 1:
The patent changes the structural parameters of the bat tip by creating a unified composite structure with optimized geometry. The single-piece design allows for precise control of wall thickness, density distribution, and overall shape parameters that expand the sweet spot. The molded tip features optimized curvature and dimensional parameters that improve performance compared to conventional separate-end-cap designs.
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 enhances bat performance by increasing the 'sweet spot' and reducing the 'sting effect' for players, while preventing tampering and ensuring safety by creating a unified, tamper-proof structure.
Implementation Method 1
Composite material generally refers to a refined plastic made of carbon materials that can be shaped and structured for a number of different purposes. Composite bats are traditionally constructed by wrapping yarns, cloths, or sleeves around a tubular structure
Implementation Method 2
A bat's 'sweet spot' refers to the area of the bat, which when hit, produces the least vibration sensation and maximum batted ball speed. When a ball strikes the 'sweet spot' of a bat, a maximum amount of energy is transferred to the ball
Data Source
AI summary
A bat composed of composite materials is disclosed. Multiple layers of composite material is wound, weaved or interlaced around a mandrel to create a tubular structure composed of composite material. The tubular structure is cured and the mandrel is removed, leaving a hollow tubular structure. A composite material insert is inserted to the tip of the tubular structure, to seal the tubular structure. The knob portion of the structure is likewise sealed. The tubular structure is wrapped with fibrous material, such that the fibrous material encompasses the knob, body and tip of the structure. The resulting structure is a bat wherein the knob of the bat transitions to the barrel of the bat and the barrel of the bat transitions seamlessly to the tip of the bat, to create a continuous composite structure. This solid structure is then injection molded, with a solid bat tip and knob in place.