Resin Cymbal Holder With Split Nuts and Spring Engagement

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Solution Overview

Problem

Existing cymbal holders face issues with securely attaching and detaching cymbals from stands, often resulting in the holder being shaken off during use, requiring metal components for strength which increases costs, and complicating the attachment process, leading to product durability issues.

Innovation Solution

A cymbal holder design featuring a holder body with first and second operation buttons, first and second split nuts, and urging means, allowing for secure attachment and detachment by adjusting the split nuts' engagement with a bolt using compression coil springs, made from resin materials to reduce weight and costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single nut member is used to engage the cymbal holder to the bolt, then the device complexity is reduced, but the reliability deteriorates because the holder may be shaken off during performance

Engineering Contradiction:

Improvenumber of nut membersVSAvoidholding stability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The single nut member is divided into two separate nut members (first nut member and second nut member) that both engage with the same bolt. This segmentation allows the system to maintain simplicity in design while improving reliability through redundancy - if one nut member becomes loose or disengages, the other continues to hold the cymbal holder securely to the bolt.

Inventive Principle:

Principle #1Segmentation

2Strength

If metal material is used for the nut member to ensure fastening strength, then the strength is improved, but the manufacturing cost increases

Engineering Contradiction:

Improvefastening strengthVSAvoidmanufacturing cost

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The patent employs composite material construction where the nut members are made from resin (polymer) material rather than traditional metal. This composite approach allows the nut members to achieve sufficient fastening strength through their engagement geometry and elastic properties while dramatically reducing manufacturing costs and enabling mass production through injection molding or similar processes.

Inventive Principle:

Principle #40Composite materials

3Reliability

If the rotation member is locked to the holder body to prevent accidental detachment, then the reliability is improved, but the ease of operation deteriorates because it becomes troublesome to attach and detach

Engineering Contradiction:

Improveprevention of accidental detachmentVSAvoidattachment and detachment convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The nut members are designed with dynamic engagement characteristics - they are held in an engaged state with the bolt during normal use to prevent accidental detachment, but can be easily disengaged when needed. The elastic deformation capability allows the nut members to flex during attachment and detachment operations, providing ease of operation while maintaining secure holding during performance.

Inventive Principle:

Principle #15Dynamics

4Reliability

If the rotation member is forcibly rotated to lock to the holder body when engagement is improper, then the reliability is improved, but the manufacturing precision deteriorates because the screw portion may be damaged

Engineering Contradiction:

Improveengagement securityVSAvoidscrew portion integrity

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The nut members are made from elastic resin material that can deform beforehand to accommodate minor misalignments or improper engagement. This elastic cushioning prevents the transmission of harmful forces to the screw portions during attachment operations, protecting the threaded portions from damage while still ensuring reliable engagement when properly installed.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The design ensures reliable cymbal attachment and detachment, reduces rattling, enhances fastening strength without metal, and allows for adjustable tightening pressure to select sounds, while minimizing part count and manufacturing costs.

Implementation Method 1

a first compression coil spring and a second compression coil spring, which urge the first and second split nuts, respectively

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

urging means... a first compression coil spring and a second compression coil spring, which urge the first and second split nuts

Methodology Applied

Scientific EffectSpring force: Spring

Data Source

PatentUS7629526B1Cymbal holder and cymbal stand

Publication Date: 2009.12.08 HOSHINO GAKKI COMPANY LIMITED

AI summary

A cymbal holder includes a holder body having an insertion hole, first and second engagement members, and first and second compression coil springs. The first and second engagement members are urged by the first and second compression coil springs such that first and second nut portions approach each other to be engaged with a bolt. When first and second button portions are pressed against the urging force of the first and second compression coil springs, the first and second nut portions are disengaged from the bolt.