| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hand movement mechanism which can reduce a force applied to a tooth of a gear and can reduce a noise generated when the gear is rotated. <P>SOLUTION: A take-up gear 67 engaging with an intermediate gear 14 and a take-up pitch circle ring 66 having the same rotation axis as that of the take-up gear 67 and formed to have the same diameter as that of a pitch circle of the take-up gear 67 are arranged on a second pulley 6. An intermediate pitch circle ring 14c having the same rotation axis as that of the intermediate gear 14 and formed to have the same diameter as that of a pitch circle of the intermediate gear 14 is also provided on the second pulley 6. A driving force of a motor 8 is transmitted to the second pulley 6 by the engagement of the take-up gear 67 and a small-diameter gear 14b of the intermediate gear 14 as well as the contact between a circumference of the take-up pitch circle ring 66 and a circumference of the intermediate pitch circle ring 14c. <P>COPYRIGHT: (C)2012,JPO&INPIT |
