Patent ID: 7815042
Filing Date: 2010-10-19
Classification: G03G

Abstract:
1. A belt driving apparatus comprising: a plurality of rollers; a belt entrained about said plurality of rollers; a drive source that is coupled to at least one of said plurality of rollers, said drive source driving the at least one of said plurality of rollers in rotation; a first restriction member provided in a vicinity of at least one longitudinal end portion of at least one of said plurality of rollers, said first restriction member contacting a widthwise edge of said belt, so that said belt is prevented from moving outwardly in a longitudinal direction of the at least one of said plurality of rollers; and a second restriction member provided in the vicinity of the at least one longitudinal end portion of the at least one of said plurality of rollers, said second restriction member cooperating with an outer circumferential surface of the at least one of said plurality of rollers to hold said belt between said second restriction member and the at least one of said plurality of rollers in superimposed relation, so that said belt is prevented from moving outwardly in a radial direction of the at least one of said plurality of rollers.