Electronic Cymbal Edge Sensor Structure for Lateral Strike Detection
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Solution Overview
Problem
Conventional electronic cymbals exhibit low sensitivity to striking from the lateral direction due to insufficient pressing of the edge sensor by the protrusion part when the outer edge is struck, as the upper and lower covers may contact the frame before the protrusion part reaches the sensor.
Innovation Solution
The electronic cymbal design includes a cover with an upper cover part, a lateral cover part, and a lower cover part, featuring a stopper that limits deformation toward the inner peripheral side, and a sensor installation part with a protrusion that facilitates pressing the edge sensor, even when struck laterally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the upper cover part or lower cover part contacts the outer edge of the frame before the protrusion part presses the edge sensor, then the structural stability is maintained, but the sensor sensitivity to lateral striking is reduced
Solution Approach 1:
The patent introduces a stopper that preliminarily prevents the upper cover part or lower cover part from contacting the outer edge of the frame before the protrusion part presses the edge sensor. This preliminary action ensures that when lateral striking occurs, the cover parts are already positioned to allow the protrusion part to contact the sensor first, thereby maintaining both structural stability and sensor sensitivity.
Solution Approach 2:
The stopper acts as an intermediary element between the cover parts and the frame's outer edge. It mediates the interaction by preventing direct contact between the cover parts and the frame, thereby allowing the protrusion part to press the edge sensor effectively without interference from premature contact between other components.
2Measurement precision
If the protrusion part is designed to press the edge sensor effectively, then the sensor sensitivity is improved, but the risk of premature contact between cover parts and frame increases
Solution Approach 1:
The stopper performs a preliminary protective function by preventing the cover parts from contacting the frame's outer edge before the protrusion part presses the sensor. This preliminary action allows the protrusion part to be designed for effective sensor pressing without creating the risk of premature contact that would compromise structural stability.
Solution Approach 2:
The stopper serves as an intermediary that decouples the potential harmful interaction between cover parts and frame while enabling the useful interaction between the protrusion part and the edge sensor. This mediation allows the protrusion part to press the sensor effectively without the cover parts interfering through premature contact.
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
Enhances the sensitivity of the edge sensor to lateral strikes by preventing contact between the cover parts and the sensor installation part, ensuring the protrusion easily presses the edge sensor, thereby improving detection accuracy.
Implementation Method 1
due to elastic deformation (bending) of the upper cover part 5b1, the protrusion part 5b3 is pressed to the edge sensor 7b
Data Source
AI summary
By limiting deformation of an upper cover part 41 toward an inner peripheral side through catching between an outer peripheral surface of a bent part 21b and a stopper46 or by forming an interval between a sensor installation part 21d and the upper cover part 41 to gradually increase from the inner peripheral side toward an outer peripheral side, at the time of being struck from a lateral direction, the upper cover part 41 and the lateral cover part 42 are suppressed from contacting an outer edge of the sensor installation part 21d. Thus, since the protrusion 45 is easily pressed to the edge sensor 5, the sensitivity of the edge sensor 5 with respect to the striking from the lateral direction can be facilitated.