Keyboard Key Rotation Fulcrum Stabilization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional keyboard devices experience stress concentration and damage in the bendable section due to repeated bending, and the rotation fulcrum is not constant when depressing the front or rear portion of a key, leading to instability in key movement and a sense of incongruity during operation.
Innovation Solution
A keyboard device with a key rotation holding section that includes a first supporting section slidably contacting the keyboard chassis and a second supporting section, or a locking section and hook section, to maintain a stable rotation fulcrum regardless of key depression direction, preventing stress concentration and ensuring consistent key rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the upper and lower deformation restricting sections are shifted in the front-back direction to restrict bendable section deformation, then the bendable section durability is improved, but the key rotation fulcrum becomes unstable and key movement consistency deteriorates
Solution Approach 1:
A rotation fulcrum holding section is introduced as an intermediary component to maintain stable key rotation. This section includes a fulcrum holding surface that contacts the key's undersurface, acting as a mediator between the deformation restricting sections and the key rotation mechanism, thereby stabilizing the rotation fulcrum while preserving the bendable section protection function
Solution Approach 2:
The solution moves from one-dimensional front-back shifting of deformation restricting sections to a two-dimensional configuration by adding vertical positioning elements (first and second supporting sections) that contact the keyboard chassis from different heights, creating a stable rotation fulcrum through spatial distribution
2Ease of operation
If the bendable section is allowed to bend significantly in the up and down direction according to key depression, then the key rotation function is improved, but stress concentration damages the bendable section
Solution Approach 1:
Deformation restricting sections are positioned beforehand to prevent excessive bending of the bendable section. These sections act as preventive measures that limit the bending range before stress concentration can occur, cushioning the bendable section from damaging stresses while preserving necessary key rotation 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
The solution ensures the durability of the bendable section and stabilizes key rotation movements, preventing damage and maintaining consistent key operation without a sense of incongruity, allowing for favorable key pushing performance.
Implementation Method 1
a thin bendable section that bends in an up and down direction and rotate in the up and down direction by bending the bendable section
Implementation Method 2
whose lower end portion is held slidably in contact with the keyboard chassis... whose upper end portion is held slidably in contact with the keyboard chassis
Data Source
AI summary
The present invention includes a keyboard chassis 1; keys 2 which are arranged on the keyboard chassis 1 and rotate in an up and down direction by bending a bendable section 22 positioned in the rear; and a key rotation holding section 30 for holding the rotation fulcrum of a key 2 stable when it rotates in the up and down direction. Accordingly, the rotation fulcrum of the key 2 is kept stable by a first supporting section 31 and a second supporting section 32 of the key rotation holding section 30 when the key 2 is depressed and the bendable section 22 bends in the up and down direction, whereby the key 2 is stably rotated. Therefore, regardless of whether the front portion of the key 2 is being depressed or the rear portion thereof is being depressed, the rotation movement of the key 2 will always remain stable.