| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an operation input device which can easily cause a large inductance for the displacement of a yoke. <P>SOLUTION: The operation input device comprises a lower yoke 4, a substrate 3 fixed onto the lower yoke 4, a coil 2 fixed onto the substrate 3, and an upper yoke 6 which changes the inductance of the coil 2 by displacing downward by action of an operation input above the coil 2, and outputs a signal according to the displacement of the upper yoke 6. The substrate 3 has an aperture 3a communicating with a hollow part 2a of the coil 2, and the lower yoke 4 has a step 4a inserted into the aperture 3a. <P>COPYRIGHT: (C)2013,JPO&INPIT |
