| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rotation regulation device which can be fixed at an arbitrary angle, which reduces generation of a sound during a rotational operation, and which can prevent a breakage in an engagement part.SOLUTION: A rotation regulation device 40 includes a sun gear 41, a planetary gear 42, an arm 43, and a fixed gear 44. The sun gear 41 and the planetary gear 42 are rotated in such a manner as to interlock with rotation of a touch panel 2, and the arm 43 is rotated on a rotating shaft 21. Thus, the planetary gear 42 moves to a position away from the fixed gear 44 and an engagement position to enable the rotation regulation and release of the touch panel 2.</p> |
