| 摘要 |
<p>The keyboard (10) includes a number of main keys (P), arranged in a matrix, and separated by secondary keys (S). Each main key is surrounded by four secondary keys to which it is connected. The keys are mounted on a base (30) with guiding components (31). Each secondary key has a hexagonal surface at same level as the surface of the main keys. Key actuating mechanisms are placed between each main key and its secondary keys. This arrangement ensures that when the main key is pressed all its associated secondary keys are moving downwards as well.</p> |
