| 摘要 |
PROBLEM TO BE SOLVED: To provide a V-ribbed belt, in particular applicable favorably to a multi-shaft driving device, free of a steep drop of its tension and excellent in the dimensional stability with the time even in the case an elongation is generated in the belt owing to its wear or the like. SOLUTION: The multi-shaft driving device is equipped with a generator 13 using the crank shaft of an engine as its drive shaft 11 and having a large rotary inertia in at least one of the follower shafts 14 and used upon being suspended on a drive pulley 16 of a multi-shaft driving device 10 free of equipment of any auto-tensioner and at least one follower pulley 17, 18, wherein the V-ribbed belt 1 is composed of an elongation part 2, a cushion rubber layer 5 in which a core wire 4 is embedded stretching in the belt longitudinal direction, and a compression part 6 having a plurality of ribs 7 extending in the belt circumferential direction in such a fashion as adjoining to the cushion rubber layer 5. The core wire 4 is made from a twisted yarn cord formed by twisting polybutylene terephthalate fibers and polyethylene terephthalate fibers together. COPYRIGHT: (C)2005,JPO&NCIPI
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