Patent ID: 7736406

Claim:
A vacuum cleaner comprising: a main body accommodating therein an electric blower and a dust-removal driving body; and a filter unit including a frame body where a filter for collecting dust particles is installed, a rib body formed inside the frame body, and a dust removing plate provided at a downstream side of the filter, one end of the dust removing plate being fixed at the frame body, wherein the opposite end of the dust removing plate is struck in an air flow direction by means related with driving the dust-removal driving body, so that the dust removing plate collides with the rib body with a reaction force thereof to thereby transmit an impact on the frame body through the rib body, the impact transmitted from the frame body being applied to the filter; and wherein the filter is vertically pleat-folded, and the rib body is formed to penetrate a planar surface of the vertical pleat-folded filter and to thereby divide the vertically pleat-folded filter into an upper portion and a lower portion; and wherein the rib body is projected at a downstream side of the planar surface.