Golf Club Crown Step Length Variation for Address Consistency
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Solution Overview
Problem
The existing golf club sets with uniformly designed raised portions on golf club heads create a perception of inconsistency when switching between clubs of different numbers, making it difficult to take a natural address position due to the varying visibility of the raised portions.
Innovation Solution
A golf club set with varying lengths of the raised portion in the face-back direction along a perpendicular plane passing through the sweet spot and center of gravity, where the length of the step is longer in lower numbered golf clubs than in higher numbered golf clubs, allowing for a more natural address position and reduced visual discrepancy between clubs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If all raised portions are designed with roughly the same dimensions, then manufacturing is simplified, but the address position perception becomes inconsistent across different numbered clubs
Solution Approach 1:
The patent applies local quality by making the raised portion dimensions club-specific rather than uniform across all clubs. Each club in the set has a raised portion length tailored to its specific loft angle and address position requirements, creating locally optimized quality that varies by club number while maintaining overall set consistency.
Solution Approach 2:
The patent implements parameter changes by varying the raised portion length parameter across different numbered clubs. The raised portion length is adjusted as a function of club number and loft angle, transforming a static uniform dimension into a dynamic parameter that adapts to each club's specific characteristics to ensure consistent address position perception.
2Stability of the object's composition
If the raised portion length is uniform across all clubs, then design consistency is achieved, but the visual prominence varies causing perception inconsistency
Solution Approach 1:
The patent applies local quality by customizing the raised portion length for each club number rather than using a uniform design. This creates locally adapted visual characteristics that compensate for the varying visual prominence caused by different club lofts and address positions, ensuring consistent perception across the set.
Solution Approach 2:
The patent introduces asymmetry by deliberately making the raised portion lengths asymmetric across different numbered clubs. Instead of symmetric uniformity, each club has a specifically tailored raised portion length that creates an asymmetric pattern designed to achieve visual perception consistency when viewed from the address position.
3Ease of operation
If the step length is longer in lower numbered clubs, then address position perception is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies parameter changes by establishing a systematic relationship between club number, loft angle, and raised portion length. Rather than arbitrary design variations, the raised portion length parameter is adjusted according to specific parameters (club number and loft angle), creating a controlled parameter change system that manages design complexity while achieving perception consistency.
Data Source
AI summary
The golf club set according to the present invention is a golf club set constituted by a plurality of numbered golf clubs with different loft angles. In each of the golf, a crown portion has a main body portion that connects to the sole portion and a raised portion that rises to form a step from the main body portion and extends in a toe-heel direction along a boundary with the face portion. In at least one pair of a lower numbered golf club and a higher numbered golf club, among the plurality of golf clubs included in the golf club set, a length of the step in a face-back direction along a perpendicular plane that passes through a sweet spot and a center of gravity of the golf club head is longer in the lower numbered golf club than in the higher numbered golf club.