| 摘要 |
<p>PURPOSE:To improve operability by automatically holding one mode when the speed change mode by a shuttling switch continues for a specified time, and releasing the holding when the mode continues by the specified time furthermore. CONSTITUTION:A shuttling switch 3 instructs the operations of queue, review and the like based on the speed change mode allocated beforehand to a mechanical-control microcomputer 11 through a shuttle command part 15 in response to an operating angle. A counter 14 sends the signal to a holding circuit 16 when the shuttling switch 3 stays at a certain operating angle position for a specified time, e.g. when 5 seconds has elapsed. Thus, the setting of the present speed change mode is held. Even if the operator detaches his hands and the shuttling switch 3 comes back to the returning position, the operation at the preset speed change mode is continued. The counter 14 releases the holding when the held operation continues by the specified time, e.g. 10 seconds, and the shuttling switch 3 returns to the intrinsic operating function.</p> |
