| 摘要 |
<P>PROBLEM TO BE SOLVED: To allow a user to intuitively know a pulling amount of a switch lever which has a small stroke, when a rotating tool such as a screwing tool has an operation switch that performs activation and termination and shift transmission by detecting a pressure caused by a pulling operation of the switch lever with a force sensor. <P>SOLUTION: Based on an output signal of the force sensor as an operation amount detector, the pulling amount of the switch lever is informed by the number of lighting LEDs among a plurality of LEDs 31 to 31. <P>COPYRIGHT: (C)2012,JPO&INPIT |
