US Patent 7740086 Suction device for a pick power tool

A suction device (11) for a hammer drill (6) has a first end (12) with a securing device (14) for securing the suction device (11) to the hammer drill (6) and a second end (13) opposite first end (12) and which has a contact area (15) with which the suction device (11) contacts a constructional component, the suction device (11) further having a receiving space (20) which at least partially encloses a working tool (7) of the pick power tool (6), and being provided with a connection device (18) for a vacuum source. A retaining element (21) having a through-opening (22) for the working tool (7) and a plurality of suction openings (23) is provided in an area (19) of the second end (13).