Asymmetric Plectrum Protuberances for Secure, Versatile Grip

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Solution Overview

Problem

Existing plectrums with multiple protuberances are difficult to hold securely and comfortably, lacking varied sizes and shapes that accommodate different playing styles.

Innovation Solution

A plectrum with asymmetrically arranged protuberances of varying sizes and shapes, featuring a largest protuberance twice the size of the smallest, and unique tip curvatures for secure grip and diverse playing techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple protuberances are added to the plectrum to enable different playing styles, then the versatility of the plectrum is improved, but the ease of holding and gripping the plectrum deteriorates

Engineering Contradiction:

Improveplaying stylesVSAvoidgripping

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The plectrum is segmented into multiple distinct protuberances (first, second, third, and fourth protuberances) with different sizes, shapes, and positions. Each protuberance can be used for different playing techniques such as picking, plucking, or strumming, allowing the single plectrum to function as multiple specialized tools while maintaining a unified structure that can be held in one hand.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Each protuberance is designed with specific local characteristics - different sizes, shapes, and tip curvatures - to optimize performance for particular playing styles. The first protuberance has a larger size for strumming, while the fourth protuberance has a smaller size for precise picking, allowing each region of the plectrum to excel at its intended function without compromising overall gripability.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If protuberances are made larger and more numerous to enhance playing options, then the adaptability is improved, but the device complexity increases

Engineering Contradiction:

Improveplaying techniquesVSAvoidstructure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple functional elements (different picking surfaces, plucking points, and strumming edges) are merged into a single integrated plectrum body with four protuberances. This consolidation provides the versatility of multiple specialized tools while avoiding the complexity of carrying or switching between separate instruments, as all functions are unified in one graspable object.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The plectrum is designed as a universal tool that performs multiple functions - picking, plucking, and strumming - through its four differently configured protuberances. This multi-functionality eliminates the need for multiple specialized plectrums or accessories, reducing overall system complexity while expanding playing capabilities.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12406640B1Plectrum with asymmetric protuberances

Publication Date: 2025.09.02 HUSKEY RICHARD CEVIN

AI summary

A plectrum for a musical instrument with strings has four (4) protuberances that extend outwardly from a center body. The protuberances are asymmetric relative to both the central longitudinal axis and the central lateral axis and have different sizes along with variations in their shapes. Each protuberance has a rounded tip with a single convex sidewall section. On either side of the rounded tip, each protuberance has straight sidewall sections. Concave sidewall sections extend between the straight sidewall sections in adjacent pairs of protuberances.