| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving device for instruments in which occurrence of step-out due to vibration, impact or the like is suppressed. <P>SOLUTION: A driving device 1 for instruments comprises: a rotary magnet 2; a driving gear 3 coaxial with the magnet 2; an output gear 5 driven by the magnet 2; a pointer spindle 6 which rotatably supports the output gear 5 and to which a pointer 14 is fitted; a transmission gear 4 transmitting the rotation of the driving gear 3 to the output gear 5; and a case 12 housing the magnet 2, the driving gear 3, the output gear 5, the transmission gear 4, and a part of the pointer spindle 6. In the driving device 1 for instruments: a bearing part 12c rotatably supporting the pointer spindle 6 and a stopper 16 are provided in the case 12; a projection 15 contacting the stopper 16 is provided to the output gear 5; a contact point 12d with which the pointer spindle 6 comes in contact is provided to the bearing part 12c; and the end part 16b on the projection 15 side of the stopper 16 and the contact point 12d are disposed at the same position with respect to the axis direction of the pointer spindle 6. <P>COPYRIGHT: (C)2012,JPO&INPIT |
