Retractable Keyboard Keys for Thin Chassis Design
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Solution Overview
Problem
Conventional portable information handling systems face challenges in reducing keyboard height without compromising key movement, as conventional solutions either reduce tactile feedback or require complex configurations.
Innovation Solution
The system incorporates retractable keys that move into the chassis when the lid is closed and extend when the system is open, utilizing a pressure plate actuated by the lid's movement to minimize chassis height while maintaining normal key feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If keyboard height is reduced to minimize chassis height, then the overall system height is reduced, but key movement and tactile feedback are compromised
Solution Approach 1:
The keyboard keys are designed to dynamically change their position based on the lid state. When the lid is closed, the keys retract into the chassis to minimize height. When the lid is opened, the keys automatically extend to their normal position to provide full tactile feedback and key movement. This dynamic adjustment allows the system to optimize for both compact storage and comfortable typing.
Solution Approach 2:
The keyboard keys are nested within the chassis when not in use. The key structure allows the keycaps to be stored inside the chassis cavity, with only the key stems remaining visible. This nesting approach significantly reduces the vertical space required for the keyboard while maintaining full functionality when extended.
2Ease of operation
If fixed keyboard structure is used to ensure adequate key travel, then user feedback is maintained, but chassis height increases
Solution Approach 1:
The keyboard transitions from a static structure to a dynamic one that adapts its configuration based on operational needs. The key travel mechanism is coupled with the lid hinge, automatically adjusting key extension based on whether the system is in portable or typing mode.
3Length of stationary object
If reduced key movement is implemented to minimize height, then chassis height is reduced, but user friendliness deteriorates
Solution Approach 1:
The keyboard provides full key movement and tactile feedback during normal operation when the lid is open, maintaining user friendliness. The system dynamically switches between compact mode with minimal key exposure and full functionality mode with complete key travel, ensuring optimal user experience during typing.
Data Source
AI summary
A portable information handling system's integrated keyboard stows keys into a retracted position when the portable information handling system transitions from an open to a closed position, such as by rotating a lid to a closed position relative to a chassis having the keyboard. A cover plate disposed in the keyboard engages the keyboard keys to retract the keys into the information handling system when the lid of the information handling system rotates to a closed position and releases the keys to be biased out from the information handling systems when the lid rotates to an open position.