| 摘要 |
<p>PURPOSE:To make keys smoothly swing and prevent the key from laterally swinging or generating a friction noise and to improve the durability. CONSTITUTION:The key 10 is mounted on a keyboard frame 20 across a universal hinge part 11 so that the key can swing up and down, and right and left; and a cylindrical movable magnet 13 is fixed in a storage part 12 formed in the reverse surface of the tip part of the key 10, and columnar fixed magnets 25 provided in a keyboard frame 20 are fitted in the movable magnet 13 almost concentrically across a gap so that the opposite surface have the same polarities; and the fixed and movable magnets 25 and 13 are relatively moved with their repulsion without sliding on each other.</p> |
