Modular Hosel Weight-Adjustable Golf Putter Head

Solution Overview

Problem

Traditional golf putters lack customization options for center of gravity and weight distribution, leading to inconsistent performance and alignment issues, and existing multi-piece designs face manufacturing challenges due to reliance on interference fits for assembly.

Innovation Solution

A multi-piece putter head design featuring a base head portion with a through-head insert secured by a combination of press fit and mechanical fasteners, allowing for adjustable weight distribution and alignment indicia, providing improved back-weighting and alignment features while ensuring secure assembly under various conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a multi-piece putter head design is used to enable weight adjustment and customization, then adaptability and versatility are improved, but device complexity increases due to multiple components and assembly requirements

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The putter head is divided into multiple independent components: a base head portion, an insert member with weight adjustment mechanism, and a hosel assembly. This segmentation allows each component to be optimized independently and enables weight customization through interchangeable elements while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The insert member is positioned within a cavity in the base head portion, creating a nested structure. The weight adjustment mechanism is integrated within the insert member, allowing multiple functional elements to be contained within each other without significantly increasing external dimensions or assembly complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Stability of the object's composition

If weights are placed in the polar extremes of blade-type putters to increase moment of inertia, then forgiveness and accuracy on miss-hits are improved, but the structural strength deteriorates due to the narrow blade geometry

Engineering Contradiction:
Core Design Contradiction:
Stability of the object's compositionVSStrength

Solution Approach 1:

The putter head combines different materials with complementary properties: the base head portion is made of a strong, durable material to provide structural integrity, while the insert member uses materials optimized for weight distribution and moment of inertia enhancement. This composite approach allows polar weighting without compromising the structural strength of the narrow blade geometry.

Inventive Principle:
Principle #40Composite materials

3Stability of the object's composition

If large mallet-type heads are used to increase moment of inertia and forgiveness, then the moment of inertia is improved, but ease of operation deteriorates due to awkward swing mechanics

Engineering Contradiction:
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

Instead of increasing the overall head size throughout, the invention concentrates mass strategically in specific locations (polar extremes and rearward areas) while maintaining a compact overall head profile. This localized mass distribution achieves high moment of inertia and forgiveness without the bulk and awkwardness of large mallet heads, preserving ease of operation.

Inventive Principle:
Principle #3Local quality

4Ease of operation

If blade-type putter geometry is used to maintain traditional appearance and ease of swing, then ease of operation is improved, but the area of the sweet spot deteriorates due to narrow head geometry

Engineering Contradiction:
Core Design Contradiction:
Ease of operationVSArea of moving object

Solution Approach 1:

The invention modifies key parameters of the blade-type putter by integrating an insert member that changes the mass distribution and moment of inertia characteristics. This allows the putter to maintain the compact blade geometry and swing comfort while achieving enhanced forgiveness and an enlarged effective sweet spot area through optimized weight placement.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9149694B2Modular hosel, weight-adjustable golf club head assembly
Publication Date: 2015.10.06
  • US9149694B2 patent drawing
  • US9149694B2 patent drawing
  • US9149694B2 patent drawing

AI summary

A golf putter head with a front portion comprising traditional shape and appearance, with an integral face insert extending through the head to an alignment and weighting portion extending beyond the main body of the putter, adding improved alignment, increased moment of inertia (MOI) and adjustable weighting and adjustable balance and optimizable center of percussion. The putter head comprises a central face insert portion extending through the body and above the traditional weight flange, with mass relieved portions below the top of the alignment piece in order to receive one or more optional weights, and the upper side of the rearwardly extending portion being engraved or marked with various alignment indicia, and the whole through-head insert face portion and rearwardly extending portion being affixed to the base portion of the head at least in part with threaded fasteners.