| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To eliminate the power supply from a ship by reducing the power consumption of a drive motor and reduce the frequency of battery exchange even in a small battery. <P>SOLUTION: A float device includes a float casing 11 having buoyancy, a cylinder 31 mounted on the float casing 11 and having one end opened to the outside, a motor 40 arranged in the float casing 11, a plunger 60 which reciprocally moves in the cylinder 31 according to the actuation of the motor 40, and an air spring 50 mounted on the plunger 60 along a reciprocally moving direction and resisting against the movement of the plunger 60 toward the float casing 11 side. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
