Wind Instrument Mute with Segmented Storage

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Solution Overview

Problem

Conventional mutes for wind instruments cannot be stored compactly with the instrument due to their design, making them cumbersome to carry and store, especially in limited spaces like musical instrument cases.

Innovation Solution

A mute design featuring a pipe-like hollow body and head with a sliding rod-like member, allowing the mute to be disassembled and stored entirely within the instrument's bell, while maintaining functionality by reconnecting for use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the mute is designed with a conventional structure (body extending beyond bell), then the mute can maintain its structural integrity and functionality, but the mute cannot be stored within the bell space

Engineering Contradiction:
Improvestorage spaceVSAvoidassembly/disassembly operation
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The mute is divided into two separable parts: a body portion and a head portion. The body portion has a first open end that abuts the bell, and the head portion contains the sound-absorbing material. This segmentation allows the mute to be disassembled for compact storage within the bell while maintaining full functionality when assembled.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The head portion is designed to be insertable into the body portion, creating a nested configuration during storage. The second open end of the body portion receives the head portion, allowing both components to occupy minimal space within the bell when not in use.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Volume of moving object

If the mute is designed to be compact for storage, then the mute can be stored within the bell, but the mute requires complex assembly and disassembly operations

Engineering Contradiction:
Improvestorage spaceVSAvoidstructure complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The mute is divided into two separable parts: a body portion and a head portion. The body portion has a first open end that abuts the bell, and the head portion contains the sound-absorbing material. This segmentation allows the mute to be disassembled for compact storage within the bell while maintaining full functionality when assembled.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The head portion is designed to be insertable into the body portion, creating a nested configuration during storage. The second open end of the body portion receives the head portion, allowing both components to occupy minimal space within the bell when not in use.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Volume of moving object

If the mute is designed with a simple structure, then the mute is easy to manufacture, but the mute cannot be stored within the bell space

Engineering Contradiction:
Improvestorage spaceVSAvoidmanufacturing complexity
Core Design Contradiction:
Volume of moving objectVSEase of manufacture

Solution Approach 1:

The mute is divided into two separable parts: a body portion and a head portion. The body portion has a first open end that abuts the bell, and the head portion contains the sound-absorbing material. This segmentation allows the mute to be disassembled for compact storage within the bell while maintaining full functionality when assembled.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The head portion is designed to be insertable into the body portion, creating a nested configuration during storage. The second open end of the body portion receives the head portion, allowing both components to occupy minimal space within the bell when not in use.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP3346460B1mute
Publication Date: 2020.04.29 YAMAHA CORP
  • EP3346460B1 patent drawingFigure 1~2
  • EP3346460B1 patent drawingFigure 3~4
  • EP3346460B1 patent drawingFigure 5~6

AI summary

A mute is provided that can be stored together with a wind instrument. A mute 1 comprises a main body portion 10, a rod-like member 50, and an inner head 60. The main body portion 10 comprises a body 20, a head 30, and a connecting member 40. When in use, a large diameter end 21 of the body 20 is connected to a large diameter end 31 of the head 30. When the inner head 60 is in a bell 3, the body 20 is fixed to the inner circumferential face of the bell 3. For storage, the mute 1 is reassembled into a mode for storage in which the body is separated from the head 30, the head 30 is in the head 30, and the inner head 60 is in the head 30. The entire mute 1 reassembled into this mode is in the bell 3.