| 摘要 |
<p>PURPOSE:To attain miniaturization and to improve convenience in use by providing a cylindrical operating part supported pivotally in a manner of freely rotating about a rotary shaft, and switching a clicking operation or center restoring operation by selecting the rotating state of the operating part. CONSTITUTION:A roller 33 is moved by moving a sliding frame 3 in a direction of (b) by an arm 23 for sliding, and also, the guide pin 41 of a fixed frame 2 stops movement of the frame 3 in a direction of (a) by abutting with the terminal part of the frame 3. At this time, a deflecting force in the direction of (b) is applied to the frame 3 by the roller 33, which stops the movement in the direction of (b), thereby, the frame 3 can be held stably. At this time, a roller device 1 is turned to be in a clicking state, and a hard ball 15 is abutted with a hole 14 for clicking formed on the side plane of a roller 5. When the roller 5 is rotated in such state, the clicking operation of the roller 5 whose rotation is regulated is performed at every prescribed angle by engaging the hard ball 15 with the hole 14. Also, when the roller 5 is rotated, rotating power so as to always restore to a center position is applied by first and second arms 7, 8, then, the device is restored.</p> |
