Vacuum-cleaner filter bag for a hand-held vacuum cleaner

Abstract

The invention comprises a vacuum-cleaner filter bag ( 1 ) having a bag wall ( 2 ) and a retaining plate ( 3 ), the retaining plate ( 3 ) the retaining plate ( 3 ) comprising an least partially cylindrical connection piece ( 4 ) extending in the direction of the through opening ( 5 ) formed in the retaining plate ( 3 ), the bag wall ( 2 ) being connected to the lateral surface of the connection piece ( 4 ) along the periphery of the connection piece.

1 . A vacuum-cleaner filter bag, comprising: a bag wall and a retaining plate, the retaining plate comprising an at least partially cylindrical connection piece extending in a direction of a through-opening formed in the retaining plate, and the bag wall being connected to a lateral surface of the connection piece along a periphery of the connection piece. 
     
     
         2 . The vacuum-cleaner filter bag according to  claim 1 , wherein the bag wall is bonded or welded to the lateral surface of the connection piece. 
     
     
         3 . The vacuum-cleaner filter bag according to  claim 1 , wherein the connection piece and the retaining plate are integrally formed. 
     
     
         4 . The vacuum-cleaner filter bag according to  claim 1 , wherein the retaining plate and the connection piece are arranged on a short side of the bag wall. 
     
     
         5 . The vacuum-cleaner filter bag according to  claim 1 , wherein the bag wall has a surface pleat with at least five pleats. 
     
     
         6 . The vacuum-cleaner filter bag according to  claim 5 , wherein the at least five pleats extend along a longitudinal axis of the vacuum-cleaner filter bag or transverse to the longitudinal axis of the vacuum-cleaner filter bag. 
     
     
         7 . The vacuum-cleaner filter bag according to  claim 5 , further comprising a fixing device which prevents at least one of the at least five pleats from unfolding completely. 
     
     
         8 . The vacuum-cleaner filter bag according to  claim 1 , further comprising at least one side pleat. 
     
     
         9 . The vacuum-cleaner filter bag according to  claim 1 , wherein a side of the bag wall opposite the retaining plate is concave or convex. 
     
     
         10 . A method of producing a vacuum-cleaner filter bag having a bag wall and a retaining plate, the retaining plate comprising an at least partially cylindrical connection piece extending in a direction of a through-opening formed in the retaining plate, and the bag wall being connected to a lateral surface of the connection piece along a periphery of the connection piece, the method comprising the steps of:
 a) forming a tubular bag of a filter material open at one side;   b) arranging the retaining plate at a wide end of a conical guide element so that the connection piece of the retaining plate rests against a lateral surface of the conical guide element;   c) slipping the tubular bag over the conical guide element;   d) connecting the tubular bag to the lateral surface of the connection piece facing away from the conical guide member; and   e) lifting the tubular bag connected to the connection piece from the conical guide element.   
     
     
         11 . The method according to  claim 10 , wherein the bag wall is bonded or welded to the lateral surface of the connection piece. 
     
     
         12 . The method according to  claim 10 , wherein the connection piece and the retaining plate are integrally formed. 
     
     
         13 . The method according to  claim 10 , wherein the retaining plate and the connection piece are arranged on a short side of the bag wall. 
     
     
         14 . The method according to  claim 10 , wherein a side of the bag wall opposite the retaining plate is concave or convex. 
     
     
         15 . The vacuum-cleaner filter bag according to  claim 1 , wherein the bag wall is clamped between the lateral surface of the connection piece and a clamping element. 
     
     
         16 . The vacuum-cleaner filter bag according to  claim 2 , wherein the connection piece and the retaining plate are integrally formed. 
     
     
         17 . The vacuum-cleaner filter bag according to  claim 2 , wherein the retaining plate and the connection piece are arranged on a short side of the bag wall. 
     
     
         18 . The vacuum-cleaner filter bag according to  claim 4 , wherein the bag wall has a surface pleat with at least five pleats. 
     
     
         19 . The vacuum-cleaner filter bag according to  claim 4 , further comprising at least one side pleat. 
     
     
         20 . The vacuum-cleaner filter bag according to  claim 4 , wherein a side of the bag wall opposite the retaining plate is concave or convex.