| 摘要 |
<p>PURPOSE:To attain long service life without noise and secular change by provid ing a magnet on a rotor or a stator side of the operation input device and providing a ferromagnetic substance on the stator or the rotor side so as to obtain the production of a sense of click. CONSTITUTION:A cut-rise 23 constituting a ferromagnetic substance is formed on the surface of a code board 16 fixed to an operation disk 10 by a screw at a prescribed pitch in the circumferential direction, and opposite to 23, magnets 25 are arranged to a cabinet 12. With the drive at a recessed part 15 of the operation disk 10, the code board 16 is driven in the cabinet 12 and a still picture is being changed over in interlocking with the detection of a photo-intercoupler 20 at the position of notch 18. In this case, the magnetic pole at both ends of the magnet 25 and the cut-rise 23 of the code board 16 are coincident to increase the attracting force and a sense of click coincident with the changeover of a picture is generated in interlocking with the detection of the photo intercoupler 20.</p> |
