Tilting Instrument Stands With Rotatable Bushing
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Solution Overview
Problem
Existing musical instrument stands are heavy, bulky, and inconvenient, posing tripping hazards and requiring separate setup, while lacking adjustability for optimal sound projection and storage.
Innovation Solution
Development of lightweight, sturdy load-bearing supports that can be securely attached to instruments or accessories, featuring a sleeve with a rotatable bushing and tensioning device for adjustable angle positioning, and an extendable undercarriage for tall or heavy objects, allowing for easy storage and secure weight-bearing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional stands are used to support musical instruments, then the instruments can be securely held, but the stands become heavy and bulky creating tripping hazards
Solution Approach 1:
The support system is divided into separate components: a mounting portion that attaches to the instrument and a distinct undercarriage that provides structural support. This segmentation allows the heavy load-bearing function to be isolated in the undercarriage while the mounting portion remains lightweight and easy to handle.
Solution Approach 2:
The support structure extends downward into the ground plane through the undercarriage, utilizing the vertical dimension to transfer loads directly to the ground rather than relying on a bulky horizontal base. This dimensional change allows for a lightweight above-ground structure while maintaining stability through ground-based support.
2Reliability
If traditional stands are used to support musical instruments, then the instruments can be held stable, but the stands must be set up separately and are inconvenient to carry
Solution Approach 1:
The support system separates the portable mounting portion from the stationary undercarriage. The mounting portion can be easily attached to and removed from instruments, while the undercarriage remains fixed in place, eliminating the need for repeated setup and teardown operations.
Solution Approach 2:
The undercarriage is installed in advance and remains in place, providing pre-established support infrastructure. This preliminary action eliminates the need for repeated setup operations, as musicians only need to attach their instruments to the pre-positioned mounting portions.
3Ease of manufacture
If fixed-angle supports are used, then the structure is simple, but the sound projection angle cannot be optimized
Solution Approach 1:
The mounting portion is designed with rotational freedom relative to the undercarriage, allowing the supported instrument to be positioned at various angles. This dynamic adjustment capability enables optimization of sound projection angles while maintaining a simple overall structure through the universal mounting interface.
Solution Approach 2:
The mounting portion integrates multiple functions: attachment to the instrument, positioning at adjustable angles, and connection to the undercarriage. This merging of functions into a single component achieves angle adjustability without requiring complex separate adjustment mechanisms.
4Strength
If heavy-duty stands are used to support tall or heavy objects, then the weight-bearing capacity is sufficient, but the stands become even bulkier and more hazardous
Solution Approach 1:
The undercarriage transfers loads directly to the ground through vertical support members, utilizing the vertical dimension for strength rather than expanding the horizontal footprint. This allows tall or heavy objects to be supported with minimal above-ground structure, reducing bulk and tripping hazards while maintaining adequate weight-bearing capacity.
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 supports provide a safe, adjustable, and space-efficient solution for musicians, reducing tripping hazards and enabling optimal positioning of instruments for sound projection, while being easy to store and transport.
Implementation Method 1
a spring disposed between, and pressing against, the mechanical stop and an end of the sleeve
Implementation Method 2
the first portion rotatably retained within the bushing
Data Source
AI summary
A load-bearing support for an object includes a sleeve, a bushing lodged in the bore of the sleeve, a bent shaft having a portion that extends through the bushing and a portion that is coupled to an undercarriage, and a tensioning device for pulling the shaft against the bushing. The bushing is notched at a desired location so that, when the support is attached to the object and the shaft is lodged in the notch, an angle is formed between the shaft and a principally vertical axis of the object to thereby support the weight of the object via a force reactive to compression of the shaft. The location of the notch may be adjusted to accommodate a variety of supported objects by rotating the bearing within the bore of the sleeve, and an exterior surface of the sleeve may be marked to permit precise rotation.