Patent ID: 7643782
Filing Date: 2010-01-05
Classification: G03G

Abstract:
1. A belt driving apparatus for driving a belt comprising: the belt hung around and between rollers; and a meandering prevention member provided in an end part of a roller to restrict meandering of the belt in a roller axial direction, wherein the meandering prevention member has a ring shape and is composed of a plurality of separately formed blocks which, when put together, make the ring shape, wherein the meandering prevention member rotates together with the roller by being engaged therewith, and wherein each of the blocks has fastening pieces formed in both end parts of an outer circumferential face thereof to protrude outward, and the blocks are fixed together in the ring shape as a result of adjoining fastening pieces being joined together by a tensile force acting to bring the fastening pieces closer together, all the blocks being held together in the ring shape in the end part of the roller and around the roller.