Removable Golf Club Weight Member Design
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Solution Overview
Problem
Existing golf club heads face challenges in maximizing peripheral weight and moment of inertia due to the cylindrical shape of moveable weights and composite structures, which can lead to delamination or corrosion, affecting performance and distance.
Innovation Solution
A golf club head design featuring a hollow body with weight receptacles and removable weight members using spring features and locking mechanisms that provide secure attachment without protruding into the center, allowing for adjustable mass distribution and minimizing structural intrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cylindrical moveable weights are used in threaded ports, then mass can be manipulated for MOI adjustment, but the cylindrical shape moves mass toward the center of the club head, reducing peripheral weight and maximizing MOI potential
Solution Approach 1:
The weight member is divided into a head portion and a body portion with the center of gravity located in the head portion. This segmentation allows the weight to be positioned with its mass concentrated away from the center of the club head, maximizing the moment of inertia while still allowing for adjustable mass distribution through the weight port.
2Adaptability or versatility
If composite structures with multiple materials are used, then mass can be selectively located throughout the club head, but the different materials are subject to delamination or corrosion over time, decreasing performance and leading to failure
Solution Approach 1:
The weight member is extracted as a separate, removable component from the club head body. This allows the weight to be independently manufactured from optimal materials without being bonded to the club head, eliminating the risk of delamination or corrosion at material interfaces while still providing flexible mass location through different weight member positions and configurations.
Solution Approach 2:
The weight member is constructed as a substantially homogeneous component rather than using composite structures with multiple materials bonded together. This homogeneous construction eliminates internal interfaces where delamination or corrosion could occur, improving reliability while maintaining the ability to locate mass selectively by positioning the weight member within the club head.
3Reliability
If secure attachment mechanisms are used for removable weights, then the weight can be securely held in place, but the attachment features may protrude into the center of the club head and negatively affect the location of the center of gravity
Solution Approach 1:
The attachment features (protrusions and recesses) are nested within the weight member and weight port structure, with the center of gravity of the weight member positioned in its head portion away from the attachment interface. This nesting allows secure attachment while keeping the attachment features from protruding into the center of the club head, thus preserving optimal center of gravity location.
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 design enhances the club's moment of inertia and stability by allowing for adjustable weight placement while preventing delamination and corrosion, improving distance and accuracy without compromising the club's structural integrity.
Implementation Method 1
The spring features are at least partially flexed laterally by the abutment of the spring feature with the perimeter wall when the weight member is disposed in the weight mount
Data Source
AI summary
A golf club head includes a club head body and a weight member that is secured to the body. The weight member is constructed to utilize lateral forces to couple to the head body to minimize the structure required to retain the weight member, and the weight member is preferably constructed so that it has a low profile.