Univeral nozzle for vacuum cleaners

Abstract

Universal nozzle to be used in connection with general known vacuum cleaners and the like, with or without washing devices, to clean floors with different floorings, including carpets, textiles and the like. The nozzle is provided with one or more cylindrical rollers, (FIG. 1 and FIG. 2 ), so suspended and so designed, by means of free wheeling bearings, so the rollers freely can revolve around their own axis, when the nozzle ( 14 ) is moved in one direction, but where the rollers are blocked, when moved in the opposite direction. Hair, thread and other foreign materials are thereby assembled in an oblong cylindrical cushion, easy to evacuate. The rollers can be provided with outside linings of different kind, for instance as a rubber roller, (FIG. 1 ), or as a brush roller, (FIG. 2 ). The rollers can be suspended in an activation device ( 7 ) and ( 10 ), making it possible to activate one or more of the rollers. The rollers are provided with beams ( 12 ) and ( 13 ), in order to scrape off hair and foreign materials, which are fastening on these, by which the rollers are self cleaning. The beam ( 13 ) is do designed, that it in same time is acting as a throttle valve.

1 . Nozzle for use in connection with vacuum cleaners, carpet brushing machines or other machines, for cleaning floors, covered with different kind of materials, where the said nozzle comprise a housing ( 14 ) and a pipe socket ( 15  provided with a cylindrical roller of which the axis of rotation is horizontal and is transversely positioned in relation to the moving direction of the machine, characterized thereby, the nozzle is provided with one or more cylindrical rollers, and the roller/rollers comprising an axis ( 1 ) and two or more free wheeling bearings ( 2 ), fitted in a tube ( 3 ) covered with an outside lining ( 4 ), the said free wheeling bearings ( 2 ) are so constructed, that the roller, during the movement along the surface ( 5 ) in one direction, can freely revolve around its own axis, but that the revolving is blocked, when the roller is moved in the opposite direction.  
     
     
         2 . Nozzle in accordance with    claim 1   , characterized thereby, one or more of the said rollers, used in the nozzle, are mounted in a set of horizontal possitioned arms ( 16 ), turning around a set of pivot pins ( 17 ) fastened in the nozzle housing ( 14 ) and the pipe socket ( 15 ), is activated by a set of bars ( 9 ), fastened in the one end in the horizontal mounted arms ( 16 ) by the axle ( 10 ) and fastened in the other end in the activation handle ( 7 ) by the pivot pins ( 8 ), and where the suspension is pressed against the surface ( 5 ) by springs ( 18 ) or its own weight and where the turning axis ( 8 ) of the activation handle ( 7 ) is placed in the distances (d) and (e) from the two contact surfaces of the activation handle ( 7 ), and the said distances (d) and (e) mutually are of different size, whereby the bars ( 9 ) can be raised or lowered the distance (f).  
     
     
         3 . Nozzle in accordance with    claim 1    or    2   , characterized thereby, one or more of the said rollers, used in the invention, have a plane—or a nearly plane—surface of gummy materials ( 4 ).  
     
     
         4 . Nozzle in accordance with    claim 1    or    2   , characterized thereby, one or more of the said rollers used in the nozzle, have a surface of brushes or brush like materials ( 6 ).  
     
     
         5 . Nozzle in accordance with    claim 3   , characterized thereby, the rollers used in the nozzle, are provided with rectangular beams ( 13 ), suspended turnable in point ( 22 ) in the housing ( 14 ) and with contact surface against the roller, and is pressed against this by pressure of the spring ( 20 ) or by the own weight of the beam ( 13 ).  
     
     
         6 . Nozzle in accordance with    claim 4   , characterized thereby, the rollers used in the nozzle, are provided with comb shaped beams ( 12 ), suspended turnable in the point ( 21 ) in the housing ( 14 ) and with contact surface against the roller, and is pressed against this by pressure of the spring ( 23 ) or by the own weight of the beam ( 12 ).  
     
     
         7 . Nozzle in accordance with    claim 5   , characterized thereby, the beam ( 13 ) is so carried out, that it fully or partly, is preventing the vacuum air stream passing the space between the under side of the housing ( 14 ) and the top side of the roller, in such a way, that the beam ( 13 ), which fits tightly against the surface of the roller, is allowed to open, when the vacuum power has reached such a size, exceeding the power of which, the spring ( 20 ) and the own weight of the beam ( 13 ), is holding the beam ( 13 ) pressed against the roller.