To improve drive property of movable component while downsizing a driving device for driving the movable component such as an opening and closing member of winning device in a pachinko machine.
The first and second rotation members 21 and 22 are rotated by a linear driving member 34 formed with shape memory alloy so as to drive an output member 39, so that constitution parts are aggregated around the rotation members 21 and 22. In this case, the first and second rotation members 21 and 22 are rotated from a reverse drive position to a normal drive position so as to rotate the output member 39 upward by supplying a power to the driving member 34 and contracting the driving member 34, and then, the first and second rotation members 21 and 22 are rotated from the normal drive position to the reverse drive position so as to rotate the output member 39 downward by resupplying the power to the driving member 34 and contracting the driving member 34. Thus, the output member 39 is moved in upward direction and downward direction without depending on an extensional motion of the driving member 34 during the power is not supplied to the driving member 34.
MUKAI SHINJI
KAMEYAMA HIROSHI
WATANABE KENJI
TOKI CORP