| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently and smoothly transmit driving force of a pulley to a magnet belt, prevent the magnet belt from coming off and further separately exchange a belt base material and a magnet retaining body. <P>SOLUTION: The magnet belt driving device is constituted by the pulley 2 and the magnet belt 1 wrapped therearound. The magnet belt 1 is engaged with the pulley 2 with no resistance by engaging a roller 12 at a peripheral edge of the pulley 2 and an engagement projection 3a of the magnet belt 1. The magnet retaining body is fixed to a surface of the belt base material 3 of the magnet belt. The magnet retaining body is integrally provided on a yoke 6 fixed with a magnet piece 7. A screw cylinder of the yoke 6 is penetrated through the belt base material 3 and a bolt 8 is thread-engaged thereto. A head thereof is sunk in a screw receiving recessed part 3b of the belt base material. Deviation of the engagement projection 3a is inhibited by brackets 11c, 11c and the magnet belt 1 comes off the pulley 2. The magnet retaining body 5 can be attached to and detached from the belt base material by the bolt 8, and the belt base material and the magnet retaining body 5 can be separately exchanged. <P>COPYRIGHT: (C)2004,JPO |
