| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving device capable of reducing the size without increasing the number of part items, and capable of accurately operating a moving shaft. SOLUTION: A motor has a magnet 1, first and second stators 2 and 3, first and second coils 4 and 5, first and second bobbins 6 and 7, first and second bearings 8 and 9, a rotary shaft 10, a male screw shaft 11, a converting member 12 and a rotary shaft assisting member 13. The male screw shaft 11 engages with an inner diameter part 10e of the rotary shaft 10, and meshes with a female screw part 12a of the converting member 12. The converting member 12 is fixed to a shaft part 10d of the rotary shaft 10, and converts rotary motion of the rotary shaft 10 into linear motion. The male screw shaft 11 operates as the moving shaft of making linear motion in response to rotation of the rotary shaft 10. Since the male screw shaft 11 being the moving shaft is engaged with the inner diameter part 10e of the rotary shaft 10, the inner diameter part 10e of the rotary shaft 10 also plays a role of a guide of the moving shaft. COPYRIGHT: (C)2007,JPO&INPIT
|
