| 摘要 |
PROBLEM TO BE SOLVED: To provide a belt drive mechanism which extends a lifetime of a bearing and increases reliability by reducing acting load, and reduces cost by miniaturizing the bearing and a periphery structure. SOLUTION: This mechanism is provided with a pulley 20 driven and rotated by a belt, two coil springs 81, 82 connected to the pulley 20 at one ends thereof, an inner 12 and a rotor 10 to which another end of the coil springs 81, 82 are connected, and bearings 30, 32 arranged near both ends of the coil springs 81, 82 between the pulley 20 and the inner 12. Connection of the pulley 20 and each one end of the coil spring 81, 82, and connection of the inner 12 and each another end of the coil spring 81, 82 are done at a plurality of sections along a circumference direction. COPYRIGHT: (C)2008,JPO&INPIT
|
