| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a double reverse rotation screw mechanism with a reduced size and weight. <P>SOLUTION: An inner shaft 2 and an outer shaft 3 are arranged coaxially, and a rear side screw 4 attached to the inner shaft 2 and a front side screw 5 attached to the outer shaft 3 are rotated in mutually opposite directions, thereby generating a propulsion in one direction. A driving source of the rear side screw 4 and the front side screw 5 is a multiaxial multilayer motor 6 including an inner rotor 62 and an outer rotor 63 that share a single stator 61, which is applied with a composite current to separately control driving of the shafts 2 and 3 by the separate output from the rotors 62 and 63, respectively. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
