Two-Part Putter with High-Density Lower Portion
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Solution Overview
Problem
Conventional putter golf club heads with weight ports to increase MOI and balance often result in increased weight, higher manufacturing costs, and unwanted vibrations, necessitating a solution that enhances perimeter weighting without complex structures.
Innovation Solution
A two-part putter design featuring an upper portion made of low-density metal and a lower portion made of high-density metal, where the lower portion comprises less than 35% of the total solid volume but greater than 45% of the mass, shifting weight towards the periphery to increase MOI without using mechanically fastened weights or weight ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If weight ports are added to increase MOI, then ball path consistency is improved, but club head weight increases and manufacturing cost increases
Solution Approach 1:
The patent applies local quality by concentrating high-density material specifically in the peripheral regions (heel and toe) of the club head rather than uniformly distributing material throughout. This creates localized weight ports that increase MOI and ball path consistency while minimizing overall weight addition, as the dense material is placed only where needed for performance enhancement.
Solution Approach 2:
The patent utilizes composite materials by combining high-density material (for weight ports) with the base club head material. This allows the creation of a multi-material structure where dense inserts are integrated into the club head body, achieving enhanced MOI through material composition rather than adding separate mechanical weight ports.
2Reliability
If weight ports are mechanically fastened or permanently attached, then MOI is increased, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the weight port function with the club head body by integrating the high-density material directly into the club head structure during manufacturing. Rather than using separate mechanically fastened or permanently attached weight ports, the dense material becomes an integral part of the club head, eliminating the need for additional attachment mechanisms and reducing structural complexity.
Solution Approach 2:
The patent applies preliminary action by incorporating the high-density material into the club head during the initial manufacturing process rather than adding weight ports as a separate post-manufacturing step. This integrated approach allows the MOI enhancement to be built-in from the start, avoiding the complexity of subsequent attachment operations.
3Reliability
If cavities or recesses are created for weight ports, then MOI is increased, but manufacturing cost increases
Solution Approach 1:
The patent applies preliminary action by forming the high-density material regions as integral parts of the club head during the initial manufacturing process. Rather than creating separate cavities or recesses that require additional machining or assembly steps, the dense material is incorporated upfront, eliminating the need for post-manufacturing cavity creation and reducing overall manufacturing complexity and cost.
4Reliability
If weight ports are used for perimeter weighting, then ball path consistency is improved, but vibrations during impact increase
Solution Approach 1:
The patent utilizes composite materials by combining high-density material with the base club head material in a way that creates a damped, integrated structure. The interaction between the dense inserts and the surrounding base material helps dissipate vibration energy, reducing the harmful vibrations generated during impact while maintaining the MOI enhancement benefits.
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 achieves a significant increase in MOI, maintains desirable weight, and improves the ball path consistency by distributing weight effectively, reducing vibrations and manufacturing costs.
Implementation Method 1
there is a use of a weight distribution device, in order to vary the center of gravity or increase the moment of inertia (MOI) of the golf club head
Data Source
AI summary
An embodiment of a putter type golf club head with an upper and lower portion, made from two different materials, is enclosed herein. Other embodiments are described herein.