Bat Handle Weight Resolving Casting Effect

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Solution Overview

Problem

Conventional bat weights placed on the barrel of a baseball bat away from the player's hands cause a 'casting' effect, altering the bat's moment of inertia and disrupting the batter's swing and muscle memory.

Innovation Solution

A bat handle weight that couples to the handle end of the bat near the player's hands, featuring a transverse hole and handle slot design to securely attach and distribute weight without the casting effect, allowing for proper warming up without disrupting body mechanics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If a bat weight is placed on the barrel of the bat away from the player's hands, then the bat provides additional weight for resistance, but the moment of inertia changes substantially causing casting effect that disrupts the batter's swing and muscle memory

Engineering Contradiction:
Improvebat weightVSAvoidswing mechanics
Core Design Contradiction:
Weight of moving objectVSEase of operation

Solution Approach 1:

The patent moves the weight from the traditional barrel position (one dimension away from hands) to the handle position (another dimension closer to hands), fundamentally changing the spatial relationship between the weight and the batter's hands to eliminate casting while maintaining resistance

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Force

If a bat weight is placed on the barrel of the bat, then the bat provides desired resistance, but the weight pulls the bat away from the player's body causing casting that changes muscle memory response

Engineering Contradiction:
Improveresistance forceVSAvoidbody mechanics
Core Design Contradiction:
ForceVSStability of the object's composition

Solution Approach 1:

The patent extracts the weight from the barrel position and relocates it to the handle position, removing the harmful casting effect while preserving the beneficial resistance force for muscle memory training

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS11890518B2Bat handle weight
Publication Date: 2024.02.06 RITEND BAT WEIGHT LLC
  • US11890518B2 patent drawing
  • US11890518B2 patent drawing
  • US11890518B2 patent drawing

AI summary

A bat handle weight includes a body having a transverse hole with a bat end opening sized to allow a bat handle end to be inserted into the transverse hole. The transverse hole tapers inward at an opposite end from the bat end opening to be narrower than the bat handle end, but wider than the bat handle. The bat handle weight is placed on the bat by placing the bat handle end into the bat end opening, and then rotating the body of the bat handle weight relative to the bat, where the inward tapered portion of the transverse hole bears against the top of the bat handle end, and the user's hand will bear against the outside of the bat handle weight when grasping the bat by the handle, thereby securing the bat handle weight on the bat so that the bat can be swung without the bat handle weight coming off the bat.