Double-Walled Golf Club Striking Face with Sliding Inner Wall
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Solution Overview
Problem
Conventional golf club designs do not effectively enhance ball speed and launch characteristics across the entire striking face, particularly for shots from the center and bottom regions, limiting the distance and efficiency of golf ball travel.
Innovation Solution
A golf club head with a double-walled striking face and a sole channel, where an inner wall structure is partially in contact with the rear surface of the striking face, allowing for sliding and providing a spring-like effect, and the sole channel enhances deflection and support, improving ball speed and launch characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a conventional single-walled striking face is used, then the club head structure is simple, but ball speed and launch characteristics are not effectively enhanced
Solution Approach 1:
The striking face is divided into two separate walls: an outer wall forming the front surface and an inner wall positioned behind it. This segmentation allows each wall to independently contribute to ball speed generation through their respective deflection characteristics, resolving the contradiction by achieving enhanced performance through structural division rather than a single complex wall
Solution Approach 2:
The inner wall is nested within the club head body behind the outer striking face wall. This nesting configuration allows the inner wall to provide additional spring-like effect and ball speed enhancement without significantly increasing the overall external dimensions or visual complexity of the club head, thus resolving the contradiction between performance enhancement and structural simplicity
2Speed
If the inner wall structure is fixed to both top and bottom, then structural stability is improved, but the spring-like effect and ball speed are reduced
Solution Approach 1:
The inner wall is designed with selective fixation: fixed at the top to the topline for stability, but unfixed at the bottom to allow dynamic movement and sliding against the outer wall. This dynamic configuration enables the inner wall to generate spring-like effect and enhance ball speed while maintaining adequate structural stability through the top fixation, resolving the contradiction between stability and performance
Solution Approach 2:
Different portions of the inner wall have different fixation characteristics: the top portion is fixed to provide stability, while the bottom portion is unfixed to enable movement and sliding. This local differentiation of quality allows the structure to simultaneously achieve both stability and ball speed enhancement, resolving the contradiction
3Speed
If the striking face thickness is increased, then structural strength is improved, but the spring-like effect and ball speed are reduced
Solution Approach 1:
The striking face strength function is segmented between two separate walls: the outer wall provides structural strength and durability, while the inner wall provides spring-like effect for ball speed enhancement. This segmentation resolves the contradiction by assigning different functional priorities to different structural elements, allowing both strength and ball speed to be optimized independently
Solution Approach 2:
The double-walled striking face creates a composite structure where the outer wall and inner wall work together to provide both strength and elasticity. The combination of these two walls achieves a composite effect that simultaneously delivers the structural integrity of a thick face and the spring-like ball speed enhancement of a thinner face, resolving the contradiction
4Speed
If shots from center and bottom regions are prioritized, then performance in these areas is improved, but overall consistency across the entire face is compromised
Solution Approach 1:
The inner wall configuration with fixed top and unfixed bottom creates localized quality variations that optimize performance for center and bottom shots while the outer wall provides consistent structural support across the entire face. This local optimization approach resolves the contradiction by enhancing specific shot types without compromising overall face versatility
Solution Approach 2:
The dynamic sliding interaction between the inner and outer walls during impact creates adaptive performance characteristics. The unfixed bottom portion of the inner wall allows for increased deflection and ball speed generation in center and bottom shots, while the fixed top portion maintains structural consistency. This dynamic behavior resolves the contradiction by adapting to different impact locations while maintaining overall performance consistency
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 double-walled striking face and sole channel configuration significantly improve ball speed and launch characteristics, providing better performance for shots from the center and bottom of the striking face, resulting in increased distance and efficiency across the entire striking surface.
Implementation Method 1
the inner wall structure is configured to slide against the rear surface of the striking face... the inner wall structure configured to slide against the rear surface of the striking face, allowing for sliding and providing a spring-like effect
Data Source
AI summary
A golf club head having a golf club head body and an inner wall structure. The club head body includes a back portion, a striking face, a sole, and a topline. The inner wall structure is at least partially in contact with a rear surface of the striking face. The inner wall structure also has a fixed end and an unfixed end. The golf club head is also configured such that the portion of the inner wall structure in contact with the rear surface of the striking face may slide against one another. The golf club head may also include a sole channel, and the fixed end of the inner wall structure may be attached to either a front edge or back edge of the sole channel.