Golf Club Removable Weight Segmented Design
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Solution Overview
Problem
Existing golf club heads face challenges in maximizing moment of inertia (MOI) and maintaining performance due to issues with mass distribution, particularly with removable weights that can delaminate or corrode, affecting distance and accuracy.
Innovation Solution
A golf club head design featuring a removable weight member with a tapered side wall and fastener system that securely attaches to the sole, allowing for adjustable mass distribution without protruding into the center of gravity, using materials with different densities to optimize MOI and prevent delamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If moveable weights are screwed into threaded ports in the club head body, then mass characteristics can be manipulated by rearranging the weights, but the cylindrical shape of the weights and receiving features necessarily moves a significant portion of the mass toward the center of the club head, which does not maximize the peripheral weight or the MOI
Solution Approach 1:
The weight member is divided into multiple segments or portions that can be independently positioned within the weight mount. This segmentation allows the mass to be distributed more effectively toward the periphery of the club head rather than being concentrated in a single cylindrical weight, thereby maximizing the moment of inertia while maintaining adaptability for adjusting mass characteristics.
Solution Approach 2:
The invention transitions from a single-dimensional cylindrical weight to a multi-dimensional weight structure that extends toward the periphery of the club head. By utilizing the available space in multiple dimensions within the weight mount, the design maximizes peripheral weight distribution and moment of inertia while preserving the ability to manipulate mass characteristics through repositioning.
2Adaptability or versatility
If composite materials are used in the club head to selectively locate mass, then mass distribution can be optimized, but the bonded components may be subject to delamination or corrosion over time, resulting in decreased performance and club head failure
Solution Approach 1:
The weight member is designed as a separate, removable component that can be extracted from the club head body. This extraction eliminates the need for permanent bonding between dissimilar materials, thereby preventing delamination and corrosion issues while maintaining the ability to optimize mass distribution. The weight can be removed and replaced without compromising the structural integrity of the club head.
Solution Approach 2:
The weight member is designed to be dynamically adjustable rather than statically fixed. This dynamic design allows the weight to be removed, repositioned, or replaced based on performance requirements, eliminating the reliability issues associated with bonded composite materials while maintaining optimized mass distribution capabilities.
3Shape
If a removable weight is designed with a low profile, then the weight does not protrude into the center of the club head and negatively affect the location of the center of gravity, but the attachment mechanism must be secure to prevent the weight from loosening or detaching during use
Solution Approach 1:
The weight member is nested within a weight mount that is formed as an integral part of the club head body. This nesting arrangement allows the low-profile weight to be securely housed within the mount while maintaining the desired low profile. The secure fit within the mount prevents loosening or detachment during use, resolving the contradiction between low profile and attachment security.
Solution Approach 2:
An intermediary retention mechanism or feature is introduced between the weight member and the club head body to ensure secure attachment. This intermediary element provides the necessary security against loosening or detachment while allowing the weight to maintain its low profile and not protrude into the center of the club head, thereby preserving the center of gravity location.
Data Source
AI summary
A golf club head comprising a sole including a body sole portion and a sole plate portion that form the sole surface of the golf club head. The sole plate portion includes a sole plate member that is coupled to the body sole portion and that includes a weight mount. The sole plate member is constructed from a material having a density that is greater than a material of the body sole portion. A weight member is secured to the weight mount.