Foldable Amplifier Stand With Line-Contact Legs for Vibration Isolation
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Solution Overview
Problem
Existing stands for musical equipment, such as amplifiers and instruments, often suffer from interference sound pickup due to floor vibrations, are bulky, difficult to deploy, and lack visual appeal and ease of transport.
Innovation Solution
A lightweight, visually appealing stand with a slanted planar platform, rearward spanner member, and pivotally mounted back rest, featuring line-contacting leg ends and a storage compartment, crafted from hardwoods, designed to minimize sound wave transmission and enhance usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If amplifiers are placed directly on the floor or table, then they are easy to position, but floor vibrations cause interference sounds to be picked up and transmitted to the audience
Solution Approach 1:
The patent introduces a stand as an intermediary device between the amplifier and the floor. The stand's legs contact the floor at discrete points rather than through a large surface area, minimizing vibration transmission. The amplifier rests on the stand's platform, which is elevated from the floor, creating physical isolation that prevents floor-borne vibrations from being picked up by the amplifier's speakers.
2Object-affected harmful factors
If traditional stands are used to elevate amplifiers, then interference sound pickup is reduced, but the stands become heavy, bulky, and difficult to deploy
Solution Approach 1:
The stand is divided into separate modular components: a base with legs, a platform, and a backrest. These segments can be assembled and disassembled independently, reducing the weight that must be handled at once during deployment. The segmented structure also allows for optimized material distribution, placing weight only where structurally necessary rather than throughout the entire stand.
Solution Approach 2:
The backrest is designed to be pivotally mounted rather than fixed, allowing it to move between a stored position adjacent to the platform and an operative position at 90 degrees to the platform. This dynamic element reduces the overall weight and bulk of the stand when the backrest is folded against the platform, making the stand more portable and easier to deploy while maintaining structural integrity when assembled.
3Object-affected harmful factors
If traditional stands are used to elevate amplifiers, then interference sound pickup is reduced, but the stands are difficult to transport
Solution Approach 1:
The backrest nests against the platform when not in use, with the two components fitting together in a compact arrangement. This nesting reduces the overall volume of the stand during transport, allowing it to occupy less space in vehicles or storage areas while still providing full functionality when assembled and deployed.
4Stability of the object's composition
If traditional stands are used to elevate amplifiers, then some provide stability, but they lack visual appeal and are bulky
Solution Approach 1:
The stand employs different material qualities in different locations: hardwood construction provides both structural stability and visual appeal, while the finish and craftsmanship are specifically applied to visible surfaces to enhance aesthetic appearance. The base and platform are constructed with attention to both mechanical strength and visual presentation, creating a unified design that satisfies both stability and appearance requirements simultaneously.
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 reduces sound interference, is easy to set up and transport, and provides a visually attractive solution for supporting musical equipment while maintaining structural integrity and ease of use.
Implementation Method 1
all of the floor contacting leg ends terminate in a line surface whereby transmission to the stand and to an amplifier thereon of sound waves emanating from a floor are minimized
Data Source
AI summary
A stand for supporting sound amplifiers, wherein the stand has a base for resting on a floor, an amplifier support platform on the base, the plane of said platform being slanted downwardly from front to rear, a back rest pivotally mounted on the base for pivoting between 0° and 90° to the plane of the platform, and cooperating stop means on the base and said back rest for stopping pivoting motion of the back rest beyond 90° to the plane of the platform, wherein the plane of the platform is below the plane of the back rest when the back rest is in a stored position lying adjacent the platform.