Filter support for a vacuum cleaner

A filter support for a vacuum cleaner comprising a frame suitable for supporting a filter and a shaking device for making the frame vibrate in use, said shaking device comprising an actuator driven by an air flow that in use passes through the frame, said actuator comprising a fan which is rotated around a central axis thereof by an air flow that in use passes through the frame, said shaking device comprising an eccentric mass which is rotated around said central axis by rotation of said fan, said shaking device comprising a first spring that is loaded by the rotation of a shaft of said fan, said eccentric mass being mechanically connected with said first spring to be rotated by said first spring, said first spring being a balance-like spring and comprising an internal end connected with said shaft and an external end connected to said eccentric mass, wherein said first spring is arranged inside a cup-shaped body, said cup-shaped body being mounted rotatably to rotate around said central axis supporting said eccentric mass and being fixed to the external end of said first spring.