Patent ID: 7992253

Claim:
A vacuum cleaner, comprising: a main body including a suction motor that generates a suction power; a dust separator that communicates with the suction motor and that separates dust and dirt from air; a dust collector body configured to store dust separated from the dust separator, the dust collector body being detachably mounted on the main body; at least one plate movably provided within the dust collector body and configured to compress dust stored in the dust collector body; a drive device provided in the main body that generates a driving force that moves the at least one plate; and at least one gear configured to transfer the driving force to the at least one plate, wherein the at least one gear includes a plurality of gear teeth, wherein the plurality of gear teeth have at least one rounded side surface, wherein the at least one gear comprises a driving gear connected to the drive device and a driven gear configured to transfer the driving force from the driving gear to the at least one plate, and wherein the driven gear is engaged with the driving gear when the dust collector body is mounted on the main body, wherein the driving gear and the drive device are provided on the main body and the driven gear is provided on the dust collector body, and wherein the driven gear is engaged with the driving gear in a state in which the dust collector body is mounted on the main body.