Dual Rotary Switch for Simultaneous Hand Control
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Solution Overview
Problem
Existing rotary switch devices for musical instruments cannot simultaneously perform pitch-bend and scratch operations with one hand, limiting user-friendliness.
Innovation Solution
A switch device with a first rotating operation unit on the top surface and a second rotating operation unit on the side surface, allowing simultaneous operation by the thumb and other fingers of one hand, enabling pitch-bend and modulation effects during musical performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single rotating operation member is used for both pitch-bend and scratch operations, then the device structure is simple, but the operations cannot be performed simultaneously with one hand
Solution Approach 1:
The single rotating operation member is divided into two independent rotating operation members: a first rotating operation member for pitch-bend operation and a second rotating operation member for scratch operation. This segmentation allows both operations to be performed simultaneously with one hand while maintaining operational independence and functionality.
2Ease of operation
If two rotating operation members are provided for simultaneous operations, then the ease of operation is improved, but the device structure becomes more complex
Solution Approach 1:
The first and second rotating operation members are integrated into a single rotating operation member with two distinct rotating portions. The first rotating portion corresponds to the pitch-bend switch section and the second rotating portion corresponds to the scratch switch section. This merging approach allows simultaneous operations while simplifying the overall structure compared to providing completely separate control mechanisms.
3Adaptability or versatility
If the switch section is designed for single operation mode, then the manufacturing is simple, but the versatility is limited
Solution Approach 1:
The rotating operation member is designed with dual functionality: it can perform pitch-bend operation by rotating the first rotating portion while pressing the pitch-bend switch section, and scratch operation by rotating the second rotating portion while releasing the pitch-bend switch section. This multi-functional design allows a single device to handle multiple operation modes without requiring separate dedicated controls for each function.
Data Source
AI summary
The present invention includes a first rotating operation unit which is arranged in one end section of an instrument main body such that a portion thereof protrudes from the top surface of the instrument main body, and switch-operated by the protruding portion being rotated by the thumb of a left hand, and a second rotating operation unit which is arranged posterior to the first rotating operation unit such that a portion thereof is exposed on a side surface side of the end section, and switch-operated by the exposed portion being rotated by a finger other than the thumb. Accordingly, when the left hand is placed on the end section, the thumb is placed corresponding to the first rotating operation unit, and the other finger is placed corresponding to the second rotating operation unit, whereby these rotating operation units can be rotated separately by only the left hand.