Drum Key With Flexible Body and Magnet for Quiet Storage
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Solution Overview
Problem
Conventional drum keys cause audible rattling when stored on drum tension rods during play, and existing solutions with magnets are ineffective in preventing metal-to-metal contact noise, while also being inefficient for quickly tuning or replacing drum heads.
Innovation Solution
A drum key design featuring a flexible body made of materials like hard rubber, which contacts the tension rod during storage, combined with a magnet to secure the key without metal-to-metal contact, and a weighted horizontal body for rapid turning and spinning, allowing quiet storage and quick tuning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a magnet is used to secure the drum key on the tension rod, then the key can be stored on the drum during play, but metal-to-metal contact causes audible rattling noise
Solution Approach 1:
The patent introduces a flexible material body as an intermediary between the magnet and the tension rod. The magnet is embedded within this flexible body, which contacts the tension rod during storage. This intermediary structure allows the magnet to hold the key securely while the flexible material prevents direct metal-to-metal contact, thereby eliminating audible rattling noise during drum play
Solution Approach 2:
The patent employs a flexible material body (such as rubber or polymer) that forms the outer shell of the drum key. This flexible shell serves dual purposes: it provides a non-magnetic contact surface with the tension rod to prevent noise, and it allows the embedded magnet to function effectively for secure attachment. The flexibility of this shell enables the key to conform to the tension rod while maintaining quiet operation
2Productivity
If a rigid drum key is used, then it can effectively turn the tension rod for quick tuning, but it causes metal-to-metal contact noise when stored on the tension rod
Solution Approach 1:
The patent combines rigid and flexible materials in a composite structure. The internal structure contains rigid components (such as a rigid core or reinforcement) that provide the necessary strength and leverage for quickly turning tension rods during tuning. The external surface uses flexible material that contacts the tension rod during storage to prevent noise. This composite construction allows the key to perform both functions: rapid tuning and quiet storage
3Productivity
If the drum key is made of dense material for quick turning, then tuning efficiency improves, but the key becomes heavier and harder to maneuver quickly
Solution Approach 1:
The patent applies local quality by concentrating dense, heavy material only in specific areas of the drum key where mass is needed for effective tension rod turning (such as the handle or gripping area). The rest of the key, particularly the portion that contacts the tension rod during storage, uses lighter flexible material. This localized distribution of mass maintains tuning efficiency while reducing overall weight and improving maneuverability
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 drum key effectively prevents audible rattling during play and enables rapid tuning and head replacement by allowing secure, quiet storage on the tension rod and efficient turning of the rods, reducing the need for additional tools.
Implementation Method 1
The drum key comprises a magnet located inside the slot defined by the flexible body
Implementation Method 2
The drum key comprises a third body that is flexible and defines a slot, where the slot is shaped to receive the tension rod
Data Source
AI summary
A drum key is configured to turn a tension rod of a drum, where the tension rod is configured to tune the drum. The drum key comprises a first body having at least one recess shaped to receive the tension rod. The drum key comprises a second body configured to turn the drum key in response to receiving a force applied by a user. The drum key comprises a third body that defines a slot, where the slot is shaped to receive the tension rod. The drum key comprises a magnet located inside the slot defined by the third body and/or a magnet located inside the slot defined by the first, second, and third body.