Patent ID: 9091994
Filing Date: 2015-07-28
Classification: G03G

Abstract:
1. A transmission device for a photosensitive drum, which is adapted for engagement with a drive member of an electronic image forming apparatus provided with two pillars, the transmission device comprising: (a) a transmission unit comprising: (b) a sleeve having a main body, an axial hole defined through the main body along the imaginary axis, and at least one guiding groove formed on the main body and communicated with the axial hole, the shaft of the transmission unit being disposed in the axial hole and capable of rotating and moving axially, and the at least one protrusion of the shaft being movably retained in the at least one guiding groove; (c) a gear member for engaging with the photosensitive drum, having a housing defined along the imaginary axis for receiving the main body of the sleeve so that the sleeve is coupled with the gear member unrotatably around the imaginary axis; and (d) an elastic member being disposed in the axial hole of the sleeve and having two ends abutted against a bottom wall of the gear member and the second end of the shaft of the transmission unit, respectively.