Golf Club Shaft Inline Weight Management for Green Speed Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Golf club shaft design has not adequately addressed weight distribution, leading to inconsistent stroke accuracy due to variations in surface speed characteristics across different parts of the golf course, particularly in putting where precise control of club head velocity is crucial.
Innovation Solution
An inline weight management system within the golf club shaft, featuring longitudinally slotted slots to accommodate weights that adjust the moment of inertia, allowing for predictable alterations in club velocity without affecting aerodynamic properties, enabling consistent stroke accuracy across varying green speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If attached weights are used to alter weight distribution, then the moment of inertia can be changed, but the weights are not completely in line with the shaft and create undesired aerodynamic effects
Solution Approach 1:
The weight is nested within the shaft structure itself, specifically within a hollow section or cavity of the shaft. This allows the weight to be positioned completely inline with the shaft axis, eliminating protruding portions that would create aerodynamic disturbances, while still achieving the desired moment of inertia adjustment.
Solution Approach 2:
The harmful aerodynamic effects are extracted or eliminated by removing the protruding portion of the weight from the shaft. Only the essential function of weight adjustment is retained, with the weight fully contained within the shaft to maintain streamlined aerodynamics.
2Speed
If take-back distance is increased to compensate for slow green speed, then the ball can travel the desired distance, but stroke accuracy decreases due to insufficient hand coordination control
Solution Approach 1:
The moment of inertia of the club is changed by adjusting the weight position within the shaft. By increasing the moment of inertia, the club generates greater force and club head velocity during the swing, allowing the ball to travel the required distance on slow greens without increasing the take-back distance, thereby maintaining stroke accuracy.
3Force
If weight is added near the head of the club to maximize moment of inertia alteration, then force and club velocity increase, but the club becomes more difficult to control
Solution Approach 1:
The weight within the shaft is made adjustable rather than fixed. This allows the moment of inertia to be dynamically changed by repositioning the weight along the shaft, enabling the golfer to optimize the balance between force generation and controllability based on specific playing conditions such as green speed.
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 system allows golfers to maintain a uniform take-back distance and consistent stroke force, compensating for green speed variations by increasing club velocity, thereby improving accuracy and reducing the likelihood of push or pull errors, especially in putting.
Implementation Method 1
The present invention provides an inline weight management system that allows the moment of inertia of the club to be adjusted in a predictable manner. The moment of inertia is maximally altered by adding weight near the head of the club. An increase in the moment of inertia translates into an increase in force which is in turn proportional to club velocity.
Data Source
AI summary
An improved design for a golf club shaft and method increases stroke accuracy by significantly reducing stroke take-back distance. A ball traveling at a set initial velocity will travel a different distance on different parts of the course due to the friction of the grass on the ball which varies in response to height and moisture level. An inline weight management system that allows the moment of inertia of the club to be adjusted in a predictable manner. An increase in the moment of inertia translates into an increase in force which is in turn proportional to club velocity and resulting ball velocity. As green speed decreases, moment of inertia can be increased so that a stroke with a uniform take-back distance will deliver a shot that travels as far as the same stroke would deliver on a fast green.