Toner replenishing device having a coil spring and spherical member at end of coil spring for loosening toner and image forming apparatus provided therewith

摘要

A toner replenishing device includes a toner conveying portion, a conveying member, a toner loosening member and a swinging member. The toner conveying portion has a vertical conveying portion for vertically conveying toner, and a horizontal conveying portion for horizontally conveying the toner. The conveying member is disposed in the horizontal conveying portion, and has a shaft member and a projecting portion formed around the shaft member. The toner loosening member is disposed in the vertical conveying portion to be swingable up and down. The swinging member is contactable with the conveying member and the toner loosening member. The swinging member swings up and down by a change in a contact portion with respect to the conveying member between the shaft member and the projecting portion, as the conveying member rotates. The toner loosening member swings up and down as the swinging member swings.