Keyboard Connection Portion Segmentation for Piano Tactile Feedback
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Solution Overview
Problem
Existing keyboard devices fail to replicate the tactile feedback and rigidity of acoustic pianos effectively, particularly in the connection between keys and the frame, leading to inadequate flexibility and realism in key striking sensations.
Innovation Solution
The keyboard device incorporates a connection portion with a first region of lower rigidity extending in the key-longitude direction and two second regions with narrower widths, providing flexibility in the yawing direction and connected between the key and a frame, which enhances the tactile feedback by adjusting the width and rigidity of these regions to mimic the experience of striking an acoustic piano key.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the connection portion is made with high rigidity to support the key structure, then structural stability is improved, but tactile feedback realism deteriorates
Solution Approach 1:
The connection portion is divided into multiple regions with different rigidity characteristics. The first region has higher rigidity to maintain structural stability, while the second region has lower rigidity to provide realistic tactile feedback during key striking, allowing each part to fulfill its specific function optimally
Solution Approach 2:
The connection portion is segmented into distinct regions (first region and second region) with different width dimensions and rigidity properties, enabling the structure to simultaneously achieve both structural support and tactile realism through differentiated zone design
2Strength
If the connection portion width is increased to improve structural support, then load-bearing capacity is improved, but flexibility in yawing direction deteriorates
Solution Approach 1:
Different width dimensions are applied to different regions of the connection portion. The first region has a greater width for enhanced load-bearing capacity, while the second region has a smaller width to maintain flexibility in the yawing direction, allowing each region to be optimized for its specific mechanical requirement
3Stability of the object's composition
If the rigidity of the connection portion is increased to reduce key deformation, then structural integrity is improved, but tactile feedback realism deteriorates
Solution Approach 1:
The connection portion incorporates regions with different rigidity characteristics - the first region provides structural integrity through higher rigidity, while the second region delivers tactile feedback realism through controlled lower rigidity, allowing the system to achieve both structural and sensory requirements simultaneously
Data Source
AI summary
A keyboard device is provided. The keyboard device includes a key and a connection portion connected between the key and a frame. The connection portion possess a first region and second regions. The first region extends in a key-longitude direction and has a smaller width than the key in a scale direction. The second regions are arranged so as to be lined in front of and behind the first region in the key-longitude direction, have flexibility in a yawing direction, and have narrower widths than the first region in a scale direction.