Spring Drum Support for Resonance Without Vibration Damping
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Solution Overview
Problem
Existing drum support devices that use rubber cushioning materials absorb vibrations, reducing sound resonance and playability during drum performance.
Innovation Solution
A drum support device utilizing springs that connect the drum body to the stand, allowing vibrations to be efficiently transmitted and enhancing sound resonance by elastically deforming only in an orthogonal direction to the radial direction of the drum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rubber cushioning material is used to connect the drum body to the stand, then the drum is securely supported, but the vibrations are absorbed and sound resonance is reduced
Solution Approach 1:
The patent changes the material parameter from rubber to spring, fundamentally altering the vibration characteristics. The spring material and its configuration (coil structure, wire diameter, coil diameter) are adjusted to achieve the desired balance between support stability and vibration transmission for sound resonance.
Solution Approach 2:
The spring provides dynamic support that allows controlled movement and vibration transmission. Unlike static rubber cushioning, the spring can dynamically respond to drum vibrations, transmitting them to the stand while maintaining secure support through its elastic properties.
2Reliability
If cushioning material is positioned between the rotation shaft and drum body, then the drum is supported, but the material stretches and contracts radially absorbing vibrations
Solution Approach 1:
The invention changes the connection mechanism from direct radial contact with cushioning material to spring-based elastic connection. This parameter change eliminates the stretching and contracting of cushioning material in the radial direction, preventing vibration absorption while maintaining support.
Solution Approach 2:
The spring connection separates the support function from the vibration absorption function. The spring provides support through its elastic deformation in the axial direction, while preventing radial movement that would cause vibration absorption, thus segmenting the functional requirements.
3Adaptability or versatility
If the elastic body deforms in multiple directions, then it provides flexible support, but it absorbs vibrations in the radial direction reducing sound resonance
Solution Approach 1:
The spring is designed with specific local qualities: its coil structure allows elastic deformation in the axial direction (providing support flexibility) while its rigid wire construction prevents deformation in the radial direction (preventing vibration absorption). This local differentiation of deformation properties resolves the contradiction.
Solution Approach 2:
By controlling the spring parameters (wire diameter, coil diameter, number of coils, material properties), the invention achieves selective deformability - flexible in the axial direction for support, but rigid in the radial direction to prevent vibration absorption and maintain sound resonance.
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
Improves sound resonance and playability by stabilizing drum oscillation and adjusting the balance between playability and sound sustain through adjustable spring constants.
Implementation Method 1
a spring having, in an axial direction of the spring, a first end and a second end. The body part of the drum is connected to the first end of the spring, and the drum stand is connected to the second end of the spring
Implementation Method 2
an elastic body having, in an axial direction of the elastic body, a first end and a second end. The body part of the drum is connected to the first end of the elastic body, and the drum stand is connected to the second end of the elastic body. The elastic body is configured to elastically deform only in an orthogonal direction. The orthogonal direction is a direction orthogonal to a radial direction of the drum
Data Source
AI summary
A drum support device is for supporting a body part of a drum with respect to a drum stand. The drum support device includes a spring having, in an axial direction of the spring, a first end and a second end. The body part of the drum is connected to the first end of the spring, and the drum stand is connected to the second end of the spring.