Patent ID: 9452810
Filing Date: 2016-09-27
CPC Classification: B63B,G01C,Y10T

Claim Text:
1. A rolling motion reducing apparatus for a ship, the rolling motion reducing apparatus comprising: a flywheel; a gimbal that rotatably supports said flywheel; a gimbal supporting section that supports said gimbal through a gimbal shaft such that said gimbal can rotate; a damper that brakes a swinging motion of said gimbal; a lock mechanism that is provided as a separate element from said damper and that locks the swinging motion of said gimbal; and a control device that controls said lock mechanism to urgently stop the swinging motion of said gimbal in response to a user operation or a detection signal, wherein said damper is a braking mechanism including hydraulic oil to provide fluid resistance to brake the swinging motion of said gimbal, and said lock mechanism includes one of (1) a disk brake mounted on said gimbal shaft and a driving section configured to lock a rotational motion of said disk brake such that the swinging motion of said gimbal is urgently stopped, and (2) a stopper and an actuator configured to press said stopper against said gimbal such that the swinging motion of said gimbal is urgently stopped and said gimbal is locked.