Web-Coupled Keyboard Keys for Cost-Effective Manufacturing
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Solution Overview
Problem
Portable electronic devices with physical keyboards face challenges in achieving a desirable look and feel while maintaining cost-effectiveness, as traditional materials and processing techniques are often too expensive and do not provide the necessary sharp, well-defined character artwork.
Innovation Solution
The use of webbing, formed through thermoforming and injection molding processes, to physically couple keyboard keys within groups while minimizing lateral and avoiding vertical coupling, allowing for a high-quality, cost-effective keyboard with distinct key placement and independent action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional materials and processing techniques are used to create physical keyboards, then the look and feel quality improves, but the manufacturing cost increases significantly
Solution Approach 1:
The keyboard is divided into modular key groups (e.g., QWERTY row, ASDF row, ZXCV row) that can be manufactured and assembled separately. Each key group is coupled through webbing that connects only adjacent groups, enabling segmented production that reduces overall manufacturing complexity and cost while maintaining quality artwork on each segment
Solution Approach 2:
Different regions of the keyboard are treated with different coupling strategies. Webbing is strategically placed to provide lateral coupling within rows while avoiding vertical coupling between rows, creating localized quality variations that optimize both appearance and functionality at different keyboard locations
2Stability of the object's composition
If keyboard keys are physically coupled together to improve structural stability, then the keyboard durability improves, but the lateral coupling between keys increases excessively
Solution Approach 1:
The keyboard structure is segmented into independent key groups connected by webbing. This segmentation provides structural stability through controlled connections while preventing excessive lateral coupling forces from propagating across the entire keyboard, as each webbing connection acts as an independent structural element
Solution Approach 2:
Webbing serves as an intermediary element between key groups, providing the necessary structural connection while allowing controlled movement. The webbing material and configuration act as a mediator that transmits minimal lateral forces while maintaining keyboard integrity
3Manufacturing precision
If webbing is used to couple keyboard keys within groups, then the key placement precision improves, but the device complexity increases
Solution Approach 1:
Multiple functional elements are merged into the webbing structure, which simultaneously provides structural coupling, positioning alignment, and aesthetic continuity between key groups. This merging reduces the number of separate components needed, thereby reducing overall device complexity while maintaining precise key placement
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 approach enables the creation of a high-quality, portable keyboard with well-defined key artwork and independent key action at a modest price, accommodating various sizes and shapes, and ensuring proper key placement without excessive lateral coupling.
Implementation Method 1
webbing, formed through thermoforming and injection molding processes
Implementation Method 2
webbing, formed through thermoforming and injection molding processes
Data Source
AI summary
A plurality of keyboard keys are grouped into at least a first group of keyboard keys and a second group of keyboard keys. Webbing serves to physically couple together the keyboard keys of the first group of keyboard keys. Similarly, but discretely, webbing also serves to physically couple together the keyboard keys of the second group of keyboard keys. So configured, the keyboard keys of the first group are not physically coupled via such webbing to any keyboard keys of the second group. By one approach the aforementioned webbing comprises an integral part of the keyboard keys and comprises, for example, a part of a film that conformally overlies adjacent ones of the keyboard keys. These teachings will accommodate forming such a film and the main body of the keyboard keys using thermoforming and injection molding processes to form-in-place such keys.