Vaccum cleaner

Abstract

A vacuum cleaner comprising a vacuum cleaner housing ( 10 ) with a vacuum source and an inlet ( 13 ) for dust-laden air communicating with the vacuum source. The vaccum cleaner has a separation system for particles separated from the airflow that is placed after the inlet as seen in the airflow direction. The separated particles are collected in a bag ( 21 ) of a mainly airtight material. The vaccum cleaner is provided with a closing and/or sealing arrangement by which a bag ( 21 ) inserted into the vaccum cleaner is closed and/or sealed before the bag is removed from the vacuum cleaner.

1 . A vacuum cleaner comprising a vacuum cleaner housing ( 10 ) with a vacuum source, an inlet ( 13 ) for dust-laden air communicating with the vacuum source, and a separation system for particles separated from an airflow that is placed after the inlet as seen in the airflow direction, wherein the separated particles are collected in at least one dust bag ( 21 ) of a mainly airtight material characterized in that the vacuum cleaner is provided with a closing and/or sealing arrangement which in its non active position is separated from the bag and by means of which the bag ( 21 ), that at each time is inserted into the vacuum cleaner, can be closed and/or sealed before the bag is removed from the vacuum cleaner.  
     
     
         2 . A vacuum cleaner according to  claim 1  characterized in that the separation system comprises a cyclone chamber with an inlet opening for the dust laden air and an outlet for cleaned air as well as an outlet for the separated particles the lastmentioned outlet being arranged such that it ends in the dust bag ( 21 ).  
     
     
         3 . A vacuum cleaner according to  claim 1  or  2  characterized in that the closing or sealing arrangement comprises clamping means ( 25 ,  41 ,  43 ,  71 ,  72 ) between which the bag ( 21 ) is clamped before it is sealed.  
     
     
         4 . A vacuum cleaner according to  claim 3  characterized in that the clamping means ( 25 ) is provided with electrically heated means ( 30 ) for sealing the bag.  
     
     
         5 . A vacuum cleaner according to  claim 4  characterized in that the vacuum cleaner further comprises a battery ( 32 ) for current supply to the electrically heated means ( 30 ).  
     
     
         6 . A vacuum cleaner according to  claim 3  characterized in that the clamping means ( 41 ,  43 ) comprises means for stretching and/or penetrating the bag material.  
     
     
         7 . A vacuum cleaner according to  claim 6  characterized in that said stretching and/or penetrating means comprises projecting portions ( 46 ) and corresponding recesses ( 42 ) for stretching or penetrating the bag.  
     
     
         8 . A vacuum cleaner according to any of claims  1 - 3  characterized in that the sealing arrangement comprises a cassette ( 52 ) with a tape roller ( 53 ) and a tearing off device ( 67 ), the sealing being affected by relative motion between the cassette and an opening of the bag.  
     
     
         9 . A vacuum cleaner according to  claim 1  characterized in that it comprises a container ( 20 ) enclosing said bag ( 21 ), the container being provided with a cover part ( 23 ) with a cover opening ( 22 ) through which a part of the bag is inserted, wherein the closing or sealing arrangement is disposed in the cover part.