Pickleball Paddle Groove Design for Surface Flatness
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Solution Overview
Problem
Conventional pickleball paddles with elastic members made of foam materials face challenges in achieving consistent thickness and surface flatness, leading to uneven surfaces, increased weight, and reduced performance due to the inherent properties and processing difficulties of these materials.
Innovation Solution
A lightweight pickleball paddle design featuring a substrate layer with embedded grooves for the elastic member, allowing the elastic member's uneven surfaces to be deformed and fully embedded, ensuring flush integration with the face plates, reducing weight and preventing surface irregularities, and incorporating perforations and a resin film for enhanced friction and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire elastic member with uneven thickness is bonded between the substrate layer and face plates, then the shock absorption function is maintained, but the face plate surface becomes uneven and the paddle weight increases
Solution Approach 1:
The patent extracts only the necessary portion of the elastic member by creating a groove in the substrate layer. The elastic member is placed only in this groove rather than covering the entire surface, removing the harmful uneven portions while retaining the shock absorption function in the needed area.
Solution Approach 2:
The elastic member is localized to specific regions defined by grooves in the substrate layer. This creates different functional zones: areas with elastic members for shock absorption and areas without for surface flatness and weight reduction, achieving local optimization of properties.
2Weight of moving object
If foam material is used for the elastic member, then lightness and elasticity are achieved, but consistent thickness and surface flatness cannot be obtained due to material shrinkage
Solution Approach 1:
The patent changes the geometric parameters of the groove dimensions to compensate for the unpredictable shrinkage of foam material. By designing the groove with specific depth and width, the final compressed thickness of the elastic member can be controlled to match the required specifications despite material variations.
Solution Approach 2:
Instead of trying to produce perfectly uniform foam material, the patent extracts only the necessary amount of elastic material into a defined groove, eliminating the excess material that would cause surface unevenness and weight increase.
3Shape
If secondary planning and cutting is performed on the elastic member, then surface flatness can be improved, but the process becomes labor-intensive and time-consuming
Solution Approach 1:
The groove is pre-formed in the substrate layer before the elastic member is installed. This preliminary structuring of the mounting space eliminates the need for subsequent cutting or planing operations on the elastic member itself, streamlining the manufacturing process.
Solution Approach 2:
The patent eliminates the secondary processing step by extracting the elastic member into a pre-defined groove, where the groove walls provide the necessary constraints to achieve flat surface alignment without additional cutting operations.
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 solution results in a more lightweight paddle with improved surface flatness, enhanced shock absorption, and better ball control, addressing the issues of weight and surface irregularities in existing paddles while maintaining effective rebound and friction.
Implementation Method 1
an elastic member is provided between the face plates and the substrate layer... The elastic member is configured to absorb part of the reaction force when the ball impacts the face plate... There will be a lot of vibration when the player swings the paddle to hit a ball. In order to reduce the transmission of vibration to the player's hand
Implementation Method 2
The groove of the substrate layer provides a deformation space for the elastic member, which can make the outer surfaces of the elastic member flush with the surfaces of the substrate layer
Implementation Method 3
When the two face plates are glued to the substrate layer, the outer surfaces of the elastic member are tightly attached to the inner surfaces of the face plates. At this time, the inner surfaces of the face plates press the elastic member that may have uneven outer surfaces, so that the elastic member is deformed to be fully embedded in the groove
Data Source
AI summary
A lightweight paddle capable of improving surface flatness includes a paddle body and a handle connected to the paddle body. The paddle body includes a substrate layer and two face plates. The substrate layer is formed with a groove. An elastic member is embedded in the groove. When the two face plates are glued to the substrate layer, the groove of the substrate layer provides a deformation space for the elastic member, which can make the outer surface of the elastic member flush with the surface of the substrate layer. The overall weight of the product can be reduced effectively, so the paddle is more lightweight.