Patent ID: 7637184

Claim:
A dust-collector locking/unlocking device to lock or unlock a dust-collector removably mounted in a cleaner body, the device comprising: a first member having a first hook that is rotatably connected with the cleaner body and a manipulation lever that protrudes from an outer circumference of the first member, the first member being rotatable with respect to the cleaner body via the manipulation lever by a user; and a second member disposed under the first member, the second member having a second hook movably connected with guide cams formed on the first member, wherein the second member is a cover of the dust-collector and wherein the first member further comprises first cam parts formed on a lower surface of the first member, and the second member further comprises second cam parts having a shape to be engaged with the first cam parts, wherein the second member further comprises a fixing protrusion that is connected with the cleaner body and movable up and down, and wherein the first member further comprises a first penetrating hole and a second penetrating hole through which the second hook and the fixing protrusion of the second member penetrate, respectively.