Golf Club Hosel Extended Portion Aerodynamics
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Solution Overview
Problem
Existing golf club heads face challenges in balancing weight distribution and air resistance, particularly with the hosel portion affecting the center of gravity and head speed, as reducing air resistance can lead to increased weight on the heel side, disrupting optimal design.
Innovation Solution
A golf club head design featuring a hosel portion on the heel side with an extended portion that extends to the back side, incorporating a concave shape and a plate-shaped member to reduce air resistance while maintaining weight balance, by guiding airflow and minimizing turbulent flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the hosel portion is designed to reduce air resistance, then air resistance is reduced, but the weight of the golf club head increases on the heel side
Solution Approach 1:
The patent introduces an extended portion that projects in the thickness direction (front-to-back dimension) of the hosel portion. This three-dimensional extension creates a flow control structure that reduces air resistance without significantly increasing weight, as the added volume is minimal compared to traditional bulky hosel designs.
Solution Approach 2:
The patent modifies the geometric parameters of the hosel portion by adding an extended portion with specific dimensional ratios. The extended portion has a length in the thickness direction that is 5-50% of the hosel portion's length, and its cross-sectional area is optimized to balance weight and aerodynamic performance.
2Speed
If the hosel portion is designed to reduce air resistance, then head speed is improved, but the center of gravity shifts to the heel side
Solution Approach 1:
The patent uses the extended portion as a counterbalancing element. By strategically positioning the extended portion and optimizing its mass distribution, it acts as a counterweight that offsets the natural tendency of the hosel portion to shift the center of gravity to the heel side, thereby maintaining optimal balance.
Solution Approach 2:
The extended portion projects in the thickness direction, creating a three-dimensional mass distribution that can be optimized for both aerodynamic performance and weight balance. This additional dimensional freedom allows the design to reduce air resistance while maintaining center of gravity stability.
3Weight of moving object
If the hosel portion is made lighter, then weight is reduced, but strength may be compromised
Solution Approach 1:
The patent applies local quality by creating a hollow or lattice-like structure within the extended portion, using materials with optimized density distributions. The extended portion can be designed with varying thickness or cellular structures that provide strength where needed while minimizing weight overall.
Solution Approach 2:
The hosel portion and extended portion can be constructed using composite materials or multi-material construction, combining materials with different strength-to-weight ratios to achieve optimal performance. This allows the design to be lighter while maintaining necessary structural integrity.
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 effectively reduces air resistance and maintains weight balance, preventing the center of gravity from shifting to the heel side, thus enhancing performance and control.
Implementation Method 1
an extended portion that extends from the hosel portion to a back side of the golf club head... the extended portion includes a distal end portion on a face portion side and a rear end portion on the back side
Data Source
AI summary
A golf club head of the present invention includes a hosel portion in which a shaft is inserted, the hosel portion being provided on a heel side of the golf club head, and an extended portion that extends from the hosel portion to a back side of the golf club head. The extended portion includes a distal end portion on a face portion side and a rear end portion on the back side. Out of a heel-side portion and a toe-side portion of the hosel portion, the distal end portion is connected to the heel-side portion. The rear end portion is located on the toe side with respect to the distal end portion.