Variable Stiffness Striking Implement with Interchangeable Member
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Solution Overview
Problem
Conventional striking implements, such as baseball and softball bats, lack adjustable stiffness, which can affect performance and user comfort, as they are typically fixed in terms of flexibility and do not accommodate varying user preferences or needs.
Innovation Solution
A variable stiffness striking implement design that allows users to adjust the stiffness by inserting a stiffness member with desired hardness between the barrel and handle, secured by a cap, enabling different stiffness configurations and customizable options for different playing styles or preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional fixed-stiffness bat is used, then the structure is simple and easy to manufacture, but the adaptability to different user preferences and playing styles is poor
Solution Approach 1:
The bat is divided into separate components: a barrel, a handle, and an interchangeable stiffness member. The stiffness member can be removed and replaced with different hardness levels, allowing users to adjust the bat's overall stiffness without redesigning the entire structure. This segmentation enables adaptability while keeping individual components relatively simple.
Solution Approach 2:
The barrel and handle are designed with a universal interface that can accommodate multiple stiffness members of different hardnesses. The same basic bat structure serves multiple functions by accepting different stiffness members, making the system versatile without requiring multiple complete bat designs.
2Adaptability or versatility
If a stiffness member is inserted between the barrel and handle, then the stiffness can be customized, but the device complexity increases
Solution Approach 1:
The stiffness member is nested within the barrel-handle assembly, fitting into a designated space between the barrel and handle. This nesting approach allows the stiffness member to be integrated into the existing structure without requiring a completely new design, minimizing the increase in overall complexity.
Solution Approach 2:
The bat transitions from a static, fixed-stiffness structure to a dynamic, adjustable-stiffness system. The stiffness member can be inserted or removed to change the bat's mechanical properties, providing adaptability while maintaining a relatively simple insertion/removal mechanism.
3Adaptability or versatility
If multiple stiffness members are provided for different preferences, then the adaptability improves, but the quantity of components increases
Solution Approach 1:
A single bat assembly with a standardized interface can use multiple different stiffness members, each providing a different stiffness level. This allows one physical bat to serve multiple functions and accommodate various user preferences without requiring multiple complete bats, effectively reducing the total number of components needed.
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 and includes a variable stiffness assembly which results in the user being able to adjust stiffness. This is accomplished by the user selecting a stiffness member having a desired hardness and inserting the selected stiffness around the handle and abutting the end of the barrel closest to the handle end and using a cap to hold the stiffness member in place, or, if desired by the user, the striking implement may be used without a stiffness member.