Speaker Stand Isolating Assemblies Vibration Control
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Solution Overview
Problem
Large stereo speakers face challenges in positioning due to weight, causing vibrations and potential instability when elevated, leading to suboptimal sound direction and quality, as existing speaker stands do not adequately isolate or adjust for these issues.
Innovation Solution
A speaker stand with isolating and polarizing assemblies that allow more movement in one direction than another, combined with adjustable rods and a mechanism for tilting the shelf, to stabilize the speaker and direct sound effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If speakers are raised off the floor to direct sound at appropriate height, then sound distribution is improved, but speaker stability deteriorates due to vibration and air movement causing migration across the support surface
Solution Approach 1:
The support stand is divided into multiple independent legs rather than a single rigid base. Each leg can move independently to absorb vibrations and air movement forces, preventing the speaker from migrating across the support surface while maintaining overall stability
Solution Approach 2:
The legs are designed with variable stiffness characteristics that allow them to be compliant under dynamic loads (vibrations and air pressure) while maintaining structural integrity under static loads (speaker weight). This parameter change enables the system to adapt between stability and vibration absorption modes
2Ease of operation
If speakers are raised off the floor on stands, then sound direction is improved, but support vibration increases causing additional unwanted noise
Solution Approach 1:
The legs act as intermediary elements between the speaker and the support surface. They are designed to decouple the speaker's vibrations from the support structure, absorbing and dissipating vibrational energy before it can be transmitted to the support and generate unwanted noise
Solution Approach 2:
The design converts the harmful effect of speaker vibrations into a beneficial damping mechanism. The legs are intentionally designed to move and flex in response to vibrations, transforming the vibrational energy into small leg movements rather than transmitting it to the support surface
3Ease of operation
If heavy speakers are placed on stands, then sound direction is improved, but device complexity increases due to need for isolation and adjustment mechanisms
Solution Approach 1:
The legs serve multiple functions simultaneously: they support the speaker's weight, absorb vibrations, allow for height adjustment, and provide directional positioning. This multi-functionality reduces the need for separate components for each function, thereby reducing overall system complexity despite the heavy speaker load
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 stand effectively isolates speaker vibrations from the floor, stabilizes the speaker, and allows for adjustable sound direction, enhancing sound quality and positioning flexibility.
Implementation Method 1
This low frequency energy may generate considerable vibrations in the speaker and cause it to move forward and rearward across a surface
Implementation Method 2
air movement adjacent the same
Implementation Method 3
polarize that movement to enable the speaker to move more in one direction than in another direction
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A stand for a stereo speaker. The stand comprises a support and a plurality of isolating and polarizing assemblies that engage the support and allow movement of the speaker relative to the support in one direction more than in another direction and to isolate that movement relative to the floor surface upon which the support rests. Preferably, the stand also includes a shelf and a plurality of rods that engage the assemblies and connect the shelf to the support. A first assembly engages a first end of each rod with the shelf and a second assembly engages the second end of each rod with the support. The assemblies are configured to permit more movement of the rods in a first horizontal direction than in a second horizontal direction. Thus, the assemblies allow the shelf to move back and forth in the first horizontal direction in response to vibrations in the speaker and air movement adjacent the same. The stand also includes a mechanism for adjusting the inclination of the shelf relative to the support so as to allow sound emitted therefrom to be directed in a particular direction.