Abstract: It is disclosed an adapter device for a vacuum cleaner comprising a hollow tubular body comprising a first end configured to engage a part of the vacuum cleaner and a second end configured to engage an accessory or a flexible tube, wherein the hollow tubular body is at least partially of a deformable material with elastic return and comprises a ring protruding radially outwards from the external surface of the tubular body. The adapter device could comprise a plurality of rings protruding radially outwards from the external surface of the tubular body. The rings of the plurality of rings could have an increasing diameter.

Abstract: A base plate for a vacuum cleaner suction head is described, said base plate comprising a lower face, an upper face and a base plate channel open towards the surface to be vacuumed. The channel extends across the whole width of the base plate. The base plate channel comprises a front edge and a rear edge. The lower face comprises: a first surface which extends along the whole front edge of the channel and a second surface which extends along the whole rear edge of the channel, the first and second surfaces lying in a same horizontal plane. The lower face also comprises a front inclined surface extending from said first surface towards the front side. According to the invention, the front inclined surface is inclined upwards so that the front side is raised with respect to the surface to be vacuumed.

Abstract: A base plate for a suction head for vacuum cleaners or a similar electric household appliance is described, said base plate comprising a lower face configured as to be directed towards the surface to be vacuumed, an opposite upper surface and a base plate channel open towards the surface to be vacuumed, wherein the base plate channel comprises a front edge and a rear edge, wherein at least the surface of the lower face which extends along the front edge of the base plate channel and at least the surface of the lower face which extends along the rear edge of the base plate channel lie in a same plane.