| 摘要 |
PURPOSE:To attain the miniaturization of a device and cost reduction by providing a cam member using a drive means so as to drive a movement member on a base member and shaking in the relative direction plural support means of a spindle motor in response to the reciprocating movement of a moving member. CONSTITUTION:A gear 3 is driven together with a pulley 7 via a worm 10, a worm wheel 8 and a belt 6 by driving a motor 11 and the moving member 2 on the base member 1 is reciprocated via a rack 2 meshing with the gear 3. In response to the reciprocation, pins 12b, 13b sliding the cam 18a of the cam 18 are moved along the cam 18a. Through the movement, support member 12, 13 supporting the pints 12b, 13b are shaken relatively against the energizing force of springs 19, 20 around the pins 12a, 13a and spindle motors 15, 16 supported by the support members 12, 13 are shaken relatively attended with them.
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