| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To enable two-stage changeover of a conveyance speed of a paper sheet, and to enhance a degree of arrangement freedom by preventing an increase in the bulk of an arrangement space. <P>SOLUTION: A driving mechanism 42 driving first and second intermediate rollers 36a, 36b changeable in speed into two stages is provided with a motor 51, first and second intermediate roller clutches 52, 53 respectively interrupting transmission of power from the motor to the first and second intermediate rollers, an interlocking mechanism 54 transmitting power at a constant speed between shafts 61, 62 on the driven side of these first and second intermediate roller clutches, and an accelerating mechanism 55 transmitting while accelerating the power between rotors 63, 64 on the driving side of the first and second intermediate roller clutches. The interrupting operation of the first and second intermediate roller clutches is performed mutually reversely, thereby enabling changeover between the constant speed driving not through the accelerating mechanism and the accelerating driving through the mechanism. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
