Keyboard Key Connecting Section Relocation for Stability
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Solution Overview
Problem
Conventional keyboard instruments with connecting sections on the lower side of keys experience instability and inadequate rattling suppression due to low positioning, leading to unstable key operation and increased rattling.
Innovation Solution
The connecting sections are relocated to the top surface of the key main bodies, allowing them to bend and deform, providing enhanced support and stability by positioning the key guide section on the lower side, thus reducing rattling and improving key operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the connecting section is provided on the lower side of the key in the thickness direction, then the assembly efficiency is enhanced by fixing multiple keys as a key unit, but the key stability in the horizontal direction deteriorates and rattling is not sufficiently suppressed
Solution Approach 1:
The connecting section is repositioned from the lower side to the upper side of the key main body in the thickness direction. This dimensional change allows the connecting section to work synergistically with the guiding section, providing both vertical connection and horizontal stabilization functions simultaneously
2Device complexity
If the connecting section is provided on the lower side of the key, then the key unit structure is simplified, but the rattling suppression capability deteriorates due to low positioning support
Solution Approach 1:
The connecting section acts as an intermediary element that transmits both vertical pressing forces and horizontal stabilizing forces. By positioning it at the upper side of the key main body, it mediates between the key top surface and the guiding section, enabling effective rattling suppression without increasing overall structural complexity
3Ease of manufacture
If the connecting section is positioned at the lower side of the key, then the manufacturing process is simplified, but the key operation smoothness deteriorates due to inadequate support positioning
Solution Approach 1:
Relocating the connecting section to the upper side of the key main body in the thickness direction creates optimal support positioning that enhances key operation smoothness. This positional adjustment in the thickness dimension allows the connecting section to work effectively with the guiding section for stable key movement
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
This configuration enhances key stability and reduces rattling by providing upper support through the connecting sections, resulting in a more stable and smooth key pressing experience.
Implementation Method 1
The connecting section is deformed in response to be pressed by the user
Data Source
AI summary
A keyboard instrument includes a plurality of key blocks, each including key main bodies, connecting sections, and a supporting section. Each key main body has a top surface that can be pressed by a user to play the keyboard instrument. Each connecting section extends from a key main body and deforms in response to pressing at the top surface of the key main body. The supporting section supports the key main bodies as one key block through the connecting sections. The key blocks are stacked at the supporting section in an instrument case so that a plurality of connecting sections of one key block and a plurality of connecting sections of another key block overlap each other. In at least one key block, each connecting section extends from a top surface side of the corresponding key main body.