| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a key touch feeling by suppressing an increase in reaction force due to sensing in the latter half of a key pressing stroke. <P>SOLUTION: When a key switch 20 being a two-make touch response switch of a contact time difference type has its driven part 23 driven downward, a skirt part 24 elastically deforms (buckles) to generate a reaction force and movable parts 33 and 34 also move down. When a movable contact 35 of a first signal detector sw1 abuts against a fixed contact 36, a signal of a first make is detected and a skirt part 34 elastically deforms to generate a reaction force; when a movable contact 45 of a second signal detector sw2 abuts against a fixed contact 46 thereafter, a signal of a second make is detected and a skirt part 44 elastically deforms to generate a reaction force. The reaction force of the skirt part 34 is smaller than the reaction force of the skirt part 44. <P>COPYRIGHT: (C)2007,JPO&INPIT |
