Variable Stiffness Baseball Bat Using Interchangeable Members
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Solution Overview
Problem
Conventional striking implements, such as baseball bats, lack the ability to adjust stiffness, which can affect performance and user preference, as they are typically designed with a fixed stiffness that may not suit individual preferences or specific game requirements.
Innovation Solution
A variable stiffness striking implement design that allows users to adjust the stiffness by selecting and inserting different stiffness members between the barrel and handle, with a cap to secure them in place, enabling customizable stiffness levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed stiffness design is used in conventional bats, then the manufacturing process is simple and device complexity is low, but the adaptability to different user preferences and game requirements is poor
Solution Approach 1:
The bat is divided into separate components: a handle, a barrel, and interchangeable stiffness members. The stiffness member receiving portion allows different stiffness members to be inserted and secured with a cap, enabling users to segment and reconfigure the bat's stiffness characteristics based on personal preference and game conditions.
Solution Approach 2:
The bat transitions from a static, fixed-stiffness design to a dynamic, adjustable-stiffness system. Users can change the stiffness characteristics by inserting different stiffness members (varying in hardness from soft to hard) into the handle's receiving portion and securing them with a cap, allowing the bat's mechanical properties to adapt to different playing scenarios.
2Adaptability or versatility
If multiple stiffness members are provided for selection, then the adaptability and user preference satisfaction improve, but the quantity of components and device complexity increase
Solution Approach 1:
The handle includes a universal stiffness member receiving portion that can accommodate multiple different stiffness members with varying hardness levels. Rather than creating specialized handles for each stiffness level, this single receiving portion design allows one handle to work with multiple stiffness members, reducing overall component quantity while maintaining versatility.
Solution Approach 2:
Instead of providing multiple complete bat sets with different fixed stiffness values, the invention allows users to change the stiffness parameter by swapping stiffness members within the same handle-barrel assembly. This approach reduces the total number of components needed while providing the same level of customization.
Data Source
AI summary
A variable stiffness striking implement, such as, for example, a ball bat typically used in baseball, softball, or rubber ball. The striking implement, preferably has a separate barrel and handle. A wedge and joint attached directly to the handle or indirectly to the handle using an interface portion engage the interior surface of the barrel. Most preferably, the wedge and joint are molded about the interface portion and a handle preform is then inserted into the intention of the interface portion and the handle is then molded. Wedge hardness is selectable and a stiffness member may also be employed. Stiffness member hardness may be selectable or may be adjustable by varied adjustment of a cap in relation to the barrel. Alternatively, the cap may not be adjustable in relation to the barrel so that a selected stiffness member hardness is fixed.