Finger-Loop Bow Structure for Bowing and Plucking Transitions

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Solution Overview

Problem

Existing musical instrument bows are poorly adapted for use with instruments that are primarily plucked or strummed, limiting seamless transitions between bowing and plucking/strumming techniques, requiring professional assistance for re-hairing, and imposing restrictions on playing styles and sounds.

Innovation Solution

A musical instrument bow device comprising a stick member, frog member, loop member, and hair portion that allows passive and secure engagement with the user's fingers, enabling seamless transitions between bowing and plucking/strumming techniques, and facilitating easy re-hairing without professional help.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a traditional bow is used with plucked/strummed instruments, then bowing technique is available, but seamless transition to plucking/strumming is prevented because the bow occupies the musician's entire hand

Engineering Contradiction:
Improvetransition between bowing and plucking/strummingVSAvoidhand freedom for plucking/strumming
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The bow is segmented into two separate components: a bow stick that remains held in the hand, and a bow hair that can be attached or detached. This allows the musician to hold only the lightweight stick while plucking/strumming, and attach the hair when bowing is needed, enabling seamless transition between techniques without the entire hand being occupied

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bow configuration is made dynamic and adjustable rather than fixed. The bow hair can be quickly attached or detached from the bow stick during performance, allowing the instrument to adapt its functionality based on the playing technique required at any given moment

Inventive Principle:
Principle #15Dynamics

2Reliability

If a prior art bow is held at an optimal 90-degree angle to strings, then bowing effectiveness is improved, but it becomes difficult and awkward to maintain this angle with plucked/strummed instruments

Engineering Contradiction:
Improvebowing effectivenessVSAvoidgrip comfort and angle maintenance
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

By separating the bow into stick and hair components, the stick can be held in a natural, comfortable position in the hand, while the bow hair is positioned perpendicular to the strings only when needed for bowing. During plucking/strumming, the hair is detached, eliminating the constraint on hand positioning

Inventive Principle:
Principle #1Segmentation

3Reliability

If professional luthiers are used for re-hairing, then proper maintenance is ensured, but it requires significant skill and expertise that musicians do not possess

Engineering Contradiction:
Improvere-hairing qualityVSAvoidre-hairing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The bow hair is designed as a separate, detachable component that can be easily removed and replaced by the musician themselves. The connection mechanism between the hair and stick is simplified to require no specialized tools or skills, allowing musicians to perform maintenance independently

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bow is designed to be self-maintainable by the musician without requiring professional luthier services. The simple attachment and detachment mechanisms enable the musician to re-hair the bow themselves, eliminating the need for external expertise

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20260080849A1Musical instrument bow device and method
Publication Date: 2026.03.19 MCCULLOUGH MICHAEL WADE
  • US20260080849A1 patent drawing
  • US20260080849A1 patent drawing
  • US20260080849A1 patent drawing

AI summary

A bow device includes a stick, a frog, a loop, and/or a hair portion. The stick has distal tip and proximal end portions. The frog and loop engage the proximal end portion, with the loop between the frog and the distal tip portion. The hair portion is tautly held between the frog and the distal tip portion for selectively engaging strings of a musical instrument for sliding relative movement. The frog and loop passively engage a user's fingers between the stick and the hair portion. When the bow device is removed from the strings, it is still secured to the user's fingers ready to selectively re-engage the strings, while the user's fingers are free to pluck/strum the strings. The bow device enables ready transitions between bowing techniques and plucking/strumming techniques, without adjusting the user's secure engagement of the bow device.