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Driving assembly for photosensitive drum, photosensitive drum assembly, process cartridge, and image forming apparatus
Driving assembly for photosensitive drum, photosensitive drum assembly, process cartridge, and image forming apparatus
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机译:用于感光鼓的驱动组件,感光鼓组件,处理盒和图像形成设备
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摘要
Provided is a photosensitive drum driving assembly, a photosensitive drum assembly, a process cartridge, and an image forming apparatus. The driving assembly including a supporting body and an engaging protrusion is connected to a drive shaft having a triangular twisted hole to transfer a rotary driving force from an image forming apparatus. The engaging protrusion twistedly protrudes to be inserted into the twisted hole, and includes three or more line contact portions on its cross-section perpendicular to the protrusion direction. The line contact portions are in line-contact with the surface of the twisted hole, and at least one portion of a surface formed by continuously joining the line-contact portions along the protrusion direction is a twisted contact-surface to receive the rotary driving force transferred by the drive shaft.
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