Iron Golf Club Head Microgrooves for Wet-State Backspin
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Solution Overview
Problem
Existing iron golf club heads struggle to maintain consistent backspin performance in wet conditions due to ineffective discharge of water droplets on the face surface.
Innovation Solution
The introduction of microgrooves between scorelines on the face surface, specifically inclined grooves extending in the heel-toe direction, effectively discharge water droplets to scorelines, enhancing drainage and spin performance in wet conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional iron golf club heads are used, then the structure is simple, but water droplets remain on the face surface in wet conditions, reducing spin performance
Solution Approach 1:
The face surface is segmented into multiple functional zones: scorelines for water discharge, microgrooves for water channeling, and inclined grooves for directional water flow. This segmentation allows each element to perform a specific drainage function, effectively removing water droplets to maintain spin performance consistency in wet conditions.
Solution Approach 2:
Different regions of the face surface are given different local qualities: scorelines with specific width and depth for water discharge, microgrooves with smaller dimensions for water channeling, and inclined grooves with specific angles for directional flow. This local differentiation optimizes water removal at each location while maintaining overall spin performance.
2Ease of operation
If microgrooves and inclined grooves are added to discharge water, then drainage performance improves, but the face surface structure becomes more complex
Solution Approach 1:
Multiple groove types (scorelines, microgrooves, and inclined grooves) are merged into a unified drainage system where each component works synergistically. The scorelines provide primary water discharge paths, microgrooves channel water between scorelines, and inclined grooves direct water flow toward scorelines, creating an integrated water removal system that improves drainage efficiency.
Solution Approach 2:
The drainage system incorporates three-dimensional groove structures with varying depths, widths, and inclinations. The inclined grooves introduce a dimensional aspect by angling water flow paths, while microgrooves add finer dimensional control between scorelines. This multi-dimensional approach enhances water discharge efficiency without requiring a completely different structural system.
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 facilitates improved backspin application in wet states by efficiently removing water from the face, thereby maintaining spin performance.
Implementation Method 1
a plurality of inclined grooves extending in a heel-toe direction are provided on a face surface
Data Source
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AI summary
An object is to provide an iron golf club head that has high drainage performance and facilitates application of backspin also in a wet state. In an iron golf club head including a plurality of scorelines in a face surface, a microgroove including at least an inclined groove is included between the scorelines, the microgroove extending in a heel leading edge-toe top edge direction to be connected to an upper scoreline.