Patent ID: 8276474
Filing Date: 2012-10-02
Classification: G03G,Y10T

Abstract:
1. A power transmission device of an image forming apparatus, which intermittently transmits power to a driven component from a driving source, comprising: a shaft; a first intermittent gear to receive power from the driving source and to rotate on the shaft; a second intermittent gear arranged so as to move between a first position in which the second intermittent gear is directly connected to the first intermittent gear along an axial direction of the shaft and a second position in which the second intermittent gear is disconnected from the first intermittent gear; a sliding unit arranged so as to slide along the shaft and to move the second intermittent gear in the axial direction of the shaft; and a driving unit arranged perpendiculary to the axial direction of the shaft to drive the sliding unit, wherein the sliding unit includes a hollow sliding body through which the shaft is inserted and a power transforming part incorporated into the hollow sliding body to transform a rotational motion of the driving unit into a linear motion, and wherein the second intermittent gear is rotatably disposed on an outer peripheral surface of the hollow sliding body to move together with the sliding unit.