Microphone Holder With Directional Stiffness for Vibration Isolation
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Solution Overview
Problem
Existing microphone holders that aim to reduce vibration noise by increasing flexibility in the axial direction also become unstable due to increased flexibility in perpendicular directions, leading to microphone sway during camera movements like panning or tilting.
Innovation Solution
A cylindrical member holding apparatus with elastically deformable supporting portions that are designed to be more easily deformed in the axial direction than in up-down and lateral directions, connecting the base and holder portions, thereby maintaining flexibility in the axial direction while resisting deformation in perpendicular directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If long and thin arm portions are used to increase flexibility in the axial direction, then vibration-proofing effect is improved, but stability in perpendicular directions deteriorates
Solution Approach 1:
The supporting portions are designed with non-uniform cross-sectional dimensions where the dimension in the axial direction (first dimension) is smaller than the dimensions in perpendicular directions (second and third dimensions). This local quality variation enables the supporting portions to be more compliant in the axial direction for vibration isolation while maintaining higher stiffness in perpendicular directions for stability.
Solution Approach 2:
The supporting portions exhibit asymmetric geometric properties with respect to different spatial directions. Specifically, the cross-section is designed such that the dimension along the axial direction differs from the dimensions along perpendicular directions, creating direction-dependent mechanical properties that simultaneously achieve vibration proofing and stability.
2Adaptability or versatility
If the arm portions are made longer to enhance flexibility, then vibration reduction is improved, but resistance to deformation in perpendicular directions worsens
Solution Approach 1:
The supporting portions are designed with non-uniform cross-sectional dimensions where the dimension in the axial direction (first dimension) is smaller than the dimensions in perpendicular directions (second and third dimensions). This local quality variation enables the supporting portions to be more compliant in the axial direction for vibration isolation while maintaining higher stiffness in perpendicular directions for stability.
Solution Approach 2:
The cross-sectional dimensions of the supporting portions are specifically designed with different values for different directions. The first dimension (axial direction) is set smaller to increase flexibility, while the second and third dimensions (perpendicular directions) are set larger to maintain strength and resistance to deformation.
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 apparatus effectively reduces vibration noise while maintaining high stability of the microphone, preventing excessive deformation and breakage under various loads, including those from camera movements.
Implementation Method 1
a plurality of elastically-deformable supporting portions configured to be disposed on respective opposite sides of the cylindrical member, which is held by the holder portion, in a direction of an axis of the cylindrical member and connect the base portion and the holder portion together
Data Source
AI summary
A cylindrical member holding apparatus which is flexible in an axial direction of a cylindrical member and resists being deformed in directions perpendicular to the axial direction of the cylindrical member. A plurality of elastically-deformable supporting portions are disposed on respective opposite sides of the cylindrical member held by a holder portion in a direction of an axis of the cylindrical member and connect a base portion and the holder portion together. The supporting portions have such a shape as to be more easily elastically deformed in a first direction than in a second and third direction. The first direction is the axial direction of the cylindrical member, the second direction is a direction that is perpendicular to the first direction and connects the holder portion and the base portion together, and the third direction is perpendicular to the first direction and also perpendicular to the second direction.