Pickleball Paddle Dual-Density Core for Low Deflection
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Solution Overview
Problem
Existing pickleball paddles face challenges in achieving a balance between durability, weight, and performance, as lightweight foams deflect excessively, while rigid materials exceed weight limits, and honeycomb cores provide insufficient structural support.
Innovation Solution
The use of dual density cores comprising a high-density skeletal frame and a low-density filling material, such as expanded polypropylene (EPP) foam, which are bonded together to create a lightweight and durable paddle with optimized weight distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If lightweight foam materials are used in the paddle core, then the paddle weight is reduced, but the paddle deflection increases excessively
Solution Approach 1:
The core is divided into regions of different densities: a high-density skeletal frame structure provides rigidity and minimizes deflection, while low-density filling material in the spaces between skeletal members reduces overall weight. This local differentiation of material properties resolves the contradiction between lightweight construction and deflection control.
Solution Approach 2:
The core combines two materials with different density characteristics - a high-density skeletal frame material and a low-density filling material. This composite construction allows the paddle to achieve both reduced weight and controlled deflection by leveraging the complementary properties of the constituent materials.
2Strength
If rigid materials are used in the paddle core, then the paddle structural support is improved, but the paddle weight exceeds limits
Solution Approach 1:
Rigid high-density material is concentrated in the skeletal frame where structural support is most needed, while low-density material fills the remaining spaces. This localized placement of rigid material provides necessary strength while minimizing overall weight.
Solution Approach 2:
The core employs a porous or cellular structure with skeletal members and filling material that creates void spaces. This porous construction reduces material volume and weight while maintaining structural integrity through the skeletal framework.
3Weight of moving object
If honeycomb cores are used in the paddle, then the paddle weight is reduced, but the structural support is insufficient
Solution Approach 1:
The core combines high-density skeletal frame material with low-density filling material to create a composite structure. This composite construction provides enhanced structural support compared to honeycomb alone, while maintaining reduced weight through the low-density filler.
Solution Approach 2:
The core is segmented into a skeletal frame structure with discrete members and spacing between them, rather than a continuous solid or simple honeycomb pattern. This segmentation allows for optimized structural support where needed while minimizing material usage and weight.
Data Source
AI summary
A pickleball paddle with novel core characteristics and/or materials, and related systems, methods, and articles of manufacture are provided.