| 摘要 |
PURPOSE:To easily adjust the click position and click load on a key corresponding to its depression by attracting a 1st magnetic material plate which is rotatable integrally with the key to a 2nd magnetic material plate until keying in a specific range is performed. CONSTITUTION:A sheet type rubber magnet 7 extends on the reverse surface of a leaf spring 5 as a magnetic material and attracts itself to the leaf spring 5. When the key 1 is released, the leaf spring 5 is attracted by the sheet rubber magnet 7 to become mutually linear. While the key is pressed a little and the sheet rubber magnet 7 deflects, the front end 1c of the key 1 is pressed, the key 1 is rotated counterclockwise, and then the leaf spring 5 is rotated by the rotation. Consequently, the sheet type rubber magnet 7 attracting itself to the leaf spring 5 deflects at the left end of a movable plate 16. When the key 1 is further pressed, the leaf spring 5 rotates and when the sheet type rubber magnet 7 reaches the limit position where it attracts itself to the leaf spring 5 with its magnetic force, the leaf spring 5 and sheet type rubber magnet 7 separate abruptly from each other. |
