Golf Putter Head Segmented High-Density Bottom and Low-Density Top Components

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Solution Overview

Problem

Existing golf putters struggle to achieve a balance between high moments of inertia and a low center of gravity, as they often rely on heavyweight materials for inertia but lack efficient distribution of weight for optimal performance.

Innovation Solution

A golf putter head design featuring a bottom component made of high-density material and a top component made of low-density material, with specific weight distribution and attachment mechanisms using fasteners and adhesives to concentrate weight at the heel, toe, and rear mass, while minimizing the center of gravity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If heavyweight materials such as bronze or steel are used for the lower plate-like member and heel and toe weights, then the moment of inertia is increased, but the center of gravity becomes higher and the overall weight increases

Engineering Contradiction:

Improvemoment of inertiaVSAvoidoverall weight

Core Design Contradiction:

Stability of the object's compositionVSWeight of moving object

Solution Approach 1:

The putter head is divided into multiple components with different densities: a high-density bottom component (metal) containing heel and toe weights, and low-density top components (polymer) forming the crown and part of the face. This segmentation allows concentration of weight at strategic locations to maximize moment of inertia while keeping the overall weight manageable.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the putter head use materials with different densities optimized for their specific functions. The bottom component and heel/toe weights use high-density metal for stability and inertia, while the top component uses low-density polymer to reduce overall weight and lower the center of gravity. This local optimization resolves the contradiction between achieving high moment of inertia and maintaining acceptable overall weight.

Inventive Principle:

Principle #3Local quality

2Stability of the object's composition

If high density material such as steel is used for the horseshoe shaped body, then the moment of inertia is increased, but the center of gravity rises and the putter head becomes harder to control

Engineering Contradiction:

Improvemoment of inertiaVSAvoidcontrol and accuracy

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The putter head employs local quality by using high-density metal only in the bottom component where it is needed for moment of inertia, while using low-density polymer in the top component to lower the center of gravity. This creates an optimal weight distribution that maintains stability without sacrificing ease of operation and control.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The putter head combines metal and polymer materials in a composite structure. The metal bottom component provides the necessary moment of inertia for stability, while the polymer top component reduces overall weight and lowers the center of gravity. This composite approach resolves the contradiction between achieving high moment of inertia and maintaining ease of operation.

Inventive Principle:

Principle #40Composite materials

3Ease of operation

If low density material such as polymer is used for the top component, then the center of gravity is lowered and ease of operation is improved, but the moment of inertia decreases

Engineering Contradiction:

Improveease of operationVSAvoidmoment of inertia

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The putter head is segmented into high-density bottom components containing heel and toe weights, and low-density top components. This segmentation allows the low-density polymer in the top component to lower the center of gravity and improve ease of operation, while the high-density metal in the bottom component compensates by providing the necessary moment of inertia for stability.

Inventive Principle:

Principle #1Segmentation

4Stability of the object's composition

If weight is concentrated at heel and toe ends, then the moment of inertia is increased, but the weight distribution becomes uneven and manufacturing complexity increases

Engineering Contradiction:

Improvemoment of inertiaVSAvoidmanufacturing complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The heel weight and toe weight are integrated into a single bottom component made of metal, rather than being separate attachments. This merging simplifies manufacturing while still achieving the desired weight concentration at the heel and toe ends for maximum moment of inertia. The bottom component is formed as one piece with the strategic weight distributions built in.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS7455599B2Golf putter head with top and bottom components made of materials having different densities

Publication Date: 2008.11.25 KARSTEN MFG CORP

AI summary

A golf putter head includes a face arranged for impacting a golf ball. The face has a heel end, a toe end, and a middle section disposed between the heel and toe ends. A rear mass is located substantially rearwardly of the face, and a pair of arms extend rearwardly from the face toward the rear mass. Portions of the heel and toe ends of the face, the arms and the rear mass are included in a bottom component. Other portions of the heel and toe ends of the face and the middle section of the face are included in a top component. The bottom component is made of high density material such as metal while the top component is made of low density material such as polymer in order to provide the putter head with a low center of gravity.