Shaped Rosin with Protective Fabric Wrap for Stringed Instruments

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Solution Overview

Problem

Conventional rosin cakes for stringed instruments are unappealing to youthful musicians and prone to breakage due to their brittle nature, lacking features that encourage proper care and protection.

Innovation Solution

Development of fancifully shaped rosins with protective elements such as fabric wraps or inflexible protectors to prevent damage, created using molds and attachment methods like sewing or adhesives, allowing for decorative features and secure storage when not in use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional cylindrical or circular rosin cakes are used, then the rosin is simple to manufacture and store, but it fails to engage youthful musicians and encourages careless handling due to its unappealing appearance

Engineering Contradiction:

Improveappeal to youthful musiciansVSAvoidrosin shape complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The rosin is divided into multiple functional components: a decorative fanciful shape (heart, star, flower) that engages youthful musicians, and a separate protective fabric wrap that prevents breakage. This segmentation allows each component to serve its specific purpose independently while working together as a complete system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The protective fabric wrap is nested around the fanciful-shaped rosin, with the fabric conforming to the unique shape. The ribbon is then wrapped around the fabric-covered rosin, creating a nested structure where the protective layers are integrated within the decorative outer form.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Reliability

If conventional rosin cakes are used, then the structure is simple, but the brittle rosin breaks easily upon shock or impact without encouragement for proper care

Engineering Contradiction:

Improveresistance to breakageVSAvoidprotective structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The fabric wrap is applied beforehand to cushion and protect the brittle rosin from shock and impact. The fabric acts as a protective layer that absorbs or distributes mechanical stresses before they can reach the fragile rosin core, preventing breakage during storage and handling.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The fabric wrap functions as a flexible protective shell that conforms to the fanciful shape of the rosin. This thin film structure provides protection against breakage while maintaining the decorative appearance and allowing the rosin to be handled with care during both storage and use.

Inventive Principle:

Principle #30Flexible shells and thin films

3Adaptability or versatility

If fanciful shaped rosins are created without protective elements, then the design is simple, but the rosin is prone to breakage and damage

Engineering Contradiction:

Improvedecorative appealVSAvoidbreakage and damage

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The invention merges the decorative fanciful shape with the protective fabric wrap into a single integrated unit. The fabric is shaped to conform to the unique decorative form, and the ribbon is wrapped around both the fabric and the rosin, creating a combined structure that simultaneously provides aesthetic appeal and protection against breakage.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The fabric wrap serves as an intermediary layer between the brittle rosin and the external environment. It mediates the interaction by providing a protective barrier that prevents direct contact with sources of damage while allowing the decorative shape to remain visible and appealing.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Reliability

If protective fabric wraps are added to fanciful shaped rosins, then breakage is prevented, but the manufacturing process becomes more complex

Engineering Contradiction:

Improveprotection from breakageVSAvoidmanufacturing process simplicity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The fabric wrap is prepared and shaped beforehand to match the fanciful form of the rosin. The ribbon is pre-cut to appropriate lengths and prepared for wrapping. These preliminary preparations simplify the final assembly process, as the components are ready to be combined in a straightforward sequence without requiring complex real-time adjustments.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS9147380B2Shaped rosin and protective fabric

Publication Date: 2015.09.29 JONES CHRISTOPHER

AI summary

A fanciful shaped rosin and protective element for use in connection with the bow of a stringed instrument, wherein said fanciful shape is selected from one or more of the following shapes: heart, star, flower, plant, cross, letter, number, animal, football, soccer balls, baseball, basketball, human shape, shamrock, skull, Christmas tree, wreath, six pointed star, crucifix, planet, crescent moons, clef symbols, notes, rests, fermata, punctuation symbols, QWERTY keyboard symbols, percent symbol, ampersand, LOL, and a smiley face. The protective element preferably comprises a protective fabric attached to said rosin.