PURPOSE: To form a supporting device for an image forming body which can be handled easily without any special skillfulness by providing a cylindrical rotating member which is held by a receiving frame provided in a free taking-in and taking-out state, and a bearing mechanism which is provided to the receiving frame and retain the support shaft of the cylindrical rotating member to the receiving frame by the elasticity of a spring in a free unlocking state.
CONSTITUTION: When a photosensitive body 13 is set in a copying machine, the receiving frame is drawn out firstly to lock one end support shaft 14 of the photosensitive body 13 to the base plate of the receiving frame 12 and the other end support shaft 14 in the support shaft insertion groove 23 of the bearing mechanism 15, and when it is further pressed down, the tip of this support shaft 14 pressed the taper surface 24 of a sliding member 19, which is moved against the elastic force of the spring 19 to engage the support shaft 14 with the center hole of a bearing 18. Consequently, the bearing 18 engages the support shaft 14 by the elastic force of the spring 20 to fit the photosensitive drum 13 to the receiving frame 12. This receiving frame 12 is pressed in the copying machine body 11 together with the photosensitive drum 13 to complete the setting operation of the photosensitive drum 13.
TADA HIDEKI
SUDA MASAJI
