Patent ID: 9244421
Filing Date: 2016-01-26
CPC Classification: F16H,G03G

Claim Text:
1. A drive transmission device comprising: a motor; a first pulley configured to be driven to rotate by the motor; a second pulley configured to be connected to a device; a belt unit configured to be wound around the first pulley and the second pulley, the belt unit including a metal layer and a dielectric layer configured to be provided between the first pulley and the metal layer and between the second pulley and the metal layer; a voltage supply unit configured to supply voltage to the first pulley, the second pulley, or the belt; an acquisition unit configured to acquire information indicating load of the device; and a controller configured to control the voltage supplied from the voltage supply unit, based on the information acquired by the acquisition unit, and to generate an attraction force between the first pulley and the metal layer of the belt and an attraction force between the second pulley and the metal layer.