Resilient Body Obtuse Angle Keyboard Fire Point
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Solution Overview
Problem
Conventional keyboards lack a sensitive and comfortable tapping feel, leading to finger fatigue due to the need for increased force to ensure input registration, as the fire point is reached after the resilient body reaches its bottom point, resulting in an unsatisfactory user experience.
Innovation Solution
A resilient body design featuring a top portion with a side wall angle greater than 90°, a conducting post, and an annular wall, which allows the fire point to be reached before the bottom point, providing a comfortable tapping feel by reducing the deformation resistance and elongating the pressing stroke, thus triggering the membrane switch earlier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the resilient body is designed with a conventional structure where the fire point is reached after the bottom point, then the total moving stroke is maintained, but the user experiences finger fatigue due to poor tapping feel and insufficient sensitivity
Solution Approach 1:
The patent changes the geometric parameters of the resilient body by setting the angle between the first side wall and the first bottom surface to greater than 90 degrees. This parameter modification alters the deformation characteristics of the resilient body, enabling the fire point to be reached before the bottom point during pressing, thereby improving both tapping comfort and input sensitivity simultaneously
2Reliability
If the user increases tapping force to ensure input registration, then the reliability of input detection is improved, but the user's fingers become fatigued due to excessive force requirement
Solution Approach 1:
The resilient body is pre-designed with an obtuse angle configuration between the first side wall and the first bottom surface, which creates a mechanical advantage that allows the fire point to be reached earlier in the pressing stroke. This preliminary structural arrangement reduces the force needed by the user while ensuring reliable input detection, eliminating the need to exert excessive tapping force
3Measurement precision
If the resilient body structure is modified to reach fire point before bottom point, then the tapping sensitivity is improved, but the structural complexity increases due to specific angle requirements and additional components
Solution Approach 1:
The patent applies local quality by modifying only the specific angular relationship between the first side wall and the first bottom surface of the resilient body, while keeping the rest of the keyboard structure conventional. This localized geometric modification achieves precise fire point control without requiring complex changes to the overall device structure, thereby improving detection precision while minimizing structural complexity
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
The design ensures a sensitive and comfortable tapping experience by reaching the fire point before the bottom point, reducing finger fatigue and providing a longer key pressing feel with faster key-in speed, while maintaining the same total moving stroke as conventional keyboards.
Implementation Method 1
a resilient body, which includes a top portion, a bottom portion, a conducting post, and an annular wall... when the resilient body is pressed, the fire point of the resilient body is reached before the resilient body reaches the bottom point
Data Source
AI summary
A resilient body and a keyboard structure are disclosed. The resilient body has a top portion, a bottom portion, a conducting post and an annular wall. The top portion has a first side wall and a first bottom surface. Before the resilient body is pressed, an angle is formed between the first side wall and the first bottom surface, wherein the angle is greater than 90°. The bottom portion has a second bottom surface. The conducting post is disposed under the first bottom surface. When the resilient body is pressed, the fire point of the resilient body is reached before the resilient body reaches the bottom point.