Pitch Training Device With Dense Core And Visual Feedback
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Solution Overview
Problem
Current pitch training tools do not effectively replicate the moment of inertia of a regulation ball, provide a smooth surface for accurate finger placement, or resist scuffing, which are critical factors in mastering throwing techniques and maintaining tool effectiveness.
Innovation Solution
A pitch training device constructed from thermoplastic materials with a dense core and less dense outer halves, featuring a seamless transition between planar and circular surfaces, and a durable design that allows for varying weights and resistance to scuffing, mimicking the moment of inertia of a regulation ball.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional pitch training tools use uniform density construction, then manufacturing is simple, but they fail to replicate the moment of inertia of regulation balls with dense cores
Solution Approach 1:
The training device is divided into two distinct density zones: an inner core region with higher density and an outer shell region with lower density. This segmentation allows the device to replicate the moment of inertia characteristics of regulation baseballs and softballs without requiring complex multi-material construction, as each zone can be manufactured separately and assembled together.
Solution Approach 2:
The device implements local quality by concentrating mass in the central core region while maintaining lower density in the outer portions. This non-uniform density distribution specifically targets the moment of inertia property, giving the training tool the same rotational characteristics as regulation balls without requiring uniform high-density materials throughout the entire structure.
2Ease of operation
If pitch training tools have raised surfaces for finger placement, then grip guidance is provided, but the surfaces scuff easily when impacting hard surfaces, hindering proper flight
Solution Approach 1:
The device replaces raised stitching or ridges with smoothly curved surface features that guide finger placement through their shape rather than through protrusions. The curved surfaces provide tactile feedback and grip guidance while maintaining a continuously smooth exterior that does not scuff when impacting hard surfaces, ensuring consistent flight characteristics throughout the tool's service life.
3Ease of operation
If pitch training tools use leather covers, then initial grip is provided, but the covers scuff easily upon impact with hard surfaces, rendering the tool less effective
Solution Approach 1:
The device uses composite material construction combining a dense core material with a durable outer shell material that resists scuffing. This composite structure provides the necessary grip characteristics in the outer shell while being far more resistant to surface degradation from hard surface impacts compared to traditional leather covers, extending the tool's effective lifespan.
4Manufacturing precision
If training tools weigh the same as regulation balls, then technique transfer is accurate, but arm conditioning and arm speed training is limited
Solution Approach 1:
The device maintains the core design principles for accurate technique transfer (smooth surfaces, proper moment of inertia) while being available in multiple weight variations. This allows the same fundamental training tool to serve multiple functions: technique development with regulation-weight versions and arm conditioning with heavier versions, eliminating the need for completely different training tools for different training objectives.
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 device provides improved visual feedback, enhanced durability, and accurate finger placement, allowing for more effective training by closely mimicking the flight characteristics and handling of a regulation ball, while accommodating different weights and reducing scuffing issues.
Implementation Method 1
a baseball has a core that is less dense than the outer layers of the ball. The lower density surrounding the pill creates a moment of inertia smaller than an identically shaped and identically weighted baseball that contains an evenly distributed density. For a given arm speed, this distribution of density within a baseball directly affects the angular speed around the ball's axis of rotation
Data Source
AI summary
A pitch training device used to improve the throwing technique of balls used in sports. The device includes a core and a substantially disk-shaped body that provides immediate visual feedback as to whether the device was properly thrown. The core exhibits a density greater than the density of the body, thereby mimicking the moment of inertia of many sports balls. This, in turn, allows the user of the device to improve the training techniques used to increase spin efficiency of a ball while also helping train and improve other throwing techniques.