Pivot Supports for Drum Rim Stabilization
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Solution Overview
Problem
Existing drum beating apparatuses face instability and disconnection issues due to the heavy weight of bass drums, leading to warping and uneven connection with the drum rim, especially during extended use and violent operation motions, and struggle with centering and adjusting to uneven surfaces.
Innovation Solution
A clamping system with swivel and pivotable caps that engage both inner and outer surfaces of the drum rim, providing adjustable support elements to distribute forces evenly and prevent rocking, warping, and adjusting to spatial variations and uneven surfaces, ensuring stable connection and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid clamping system is used to secure the drum beating apparatus to the drum rim, then the connection stability improves, but the drum rim may warp or deteriorate due to excessive rigidness and inability to adjust to rim movement
Solution Approach 1:
The clamping system employs pivotally self-adjusting support elements that can dynamically adapt to drum rim movements during operation. The pivotable connection allows the clamping arms to follow rim displacement without creating excessive rigid constraints, thereby preventing rim warping while maintaining secure connection stability.
Solution Approach 2:
The system changes the mechanical parameters of the clamping connection by introducing pivotal joints that allow angular adjustment. This enables the clamping force to be applied in a controlled manner that secures the apparatus while accommodating rim movement, preventing both disconnection and warping.
2Reliability
If the clamping system is positioned exactly at the center of the drum rim, then the drum beating apparatus remains stable during operation, but positioning becomes extremely difficult especially when the floor is not exactly flat
Solution Approach 1:
The clamping system incorporates self-centering mechanisms and pivotally self-adjusting support elements that automatically compensate for positioning errors. The system self-adjusts during engagement to achieve proper alignment and stable operation without requiring precise manual positioning, even on uneven surfaces.
Solution Approach 2:
The dynamic adjustment capability of the pivotable support elements allows the system to automatically adapt to slight positioning variations and uneven floors, eliminating the need for extremely precise initial positioning while maintaining operational stability.
3Ease of manufacture
If standard clamping systems are used to connect the drum beating apparatus to the drum rim, then the setup process is simple, but the connection becomes unstable and disconnects during drum beating motion due to heavy drum weight
Solution Approach 1:
The system maintains simple setup procedures while incorporating pivotally self-adjusting support elements that dynamically adapt during operation. These elements provide enhanced connection stability by allowing the clamping arms to follow drum rim movements caused by heavy drum weight and vigorous playing, preventing disconnection.
Solution Approach 2:
The clamping system is divided into modular components including separate clamping arms, pivotable support elements, and adjustable caps. This segmentation allows for easy assembly and setup while each component contributes to overall connection stability through its specific function of securing the apparatus to the drum rim.
Data Source
AI summary
In a drum beating assembly, the combination comprising a frame, including at least one pedestal, an axle carried by the pedestal to rotate relative thereto, the axle having an axis of rotation, a drum beater carried by the axle, a pedal operatively connected to the axle to rotate the axle and beater in response to pedal movement, the frame including a base plate, there being a clamp arm and means supporting the arm on the plate to pivot relative thereto, and multiple drum rim support elements carried to engage the drum rim at multiple locations to support the drum rim relative to the base plate. The support elements are typically pivotable to self-adjust during clamp up.