DEVICE FOR BELT TRANSFER

摘要

PURPOSE:To contrive reduction in the variation of a reduction ratio with no increase of parts in number by selecting the coefficient of linear expansion of both pulleys in such a way that a change in a revolution ratio of a driving pulley to a driven pulley caused by a change in temperature. CONSTITUTION:A motor pulley 15 on the driving side is made of a material different in the coefficient of linear expansion from a material of which a flywheel 10 on the driven side is made so that the variation of actual revolutions of the flywheel 10 on the driven side which is caused by a change in a diameter ratio due to a change in temperature is prevented from being increased. This constitution thereby enables the variation of a reduction ratio due to a change in temperature to be made small with no increase of the number of parts.