| 摘要 |
PURPOSE:To prevent meandering of belt with simple structure. CONSTITUTION:An endless belt 24 is stretched between, at least, two rollers 25, 26, and one roller 26 is supported by a roller support member 28, which is supported by a support shaft 27 freely to turn, freely to be oscillated. Furthermore, guide members 31a, 31b for guiding the edge of the belt are provided in the roller support member 28 so as to be opposite to both edges. An angle of inclination of the driven roller 26 is changed in response to a degree of deviation of the belt 24 to reset the belt under the normal condition immediately and maintain the stable travelling of the belt. |
