Hose for walls, floors, moquettes, carpets and the like cleaning machines

Abstract

Hose for wall-, floor-, moquettes-, carpet- and the like cleaning machine, comprising at least one first rigid tubular member ( 2 ), having at least one air and liquid suction duct ( 3 ), and at least one steam or other fluid delivery duct ( 4 ). The ducts ( 3, 4 ) are connected to each other with their longitudinal axes (L, L′) in parallel relationship. The hose ( 1 ) is characterized in that it includes at least one second rigid tubular member ( 5 ), which is similar to the first one and has at least one air and liquid suction duct ( 6 ), and at least one steam or other fluid delivery to duct ( 7 ). The first and second tubular members ( 2, 5 ) are slidably and telescopically coupled to each other in such a manner as to allow arbitrary adjustment of the total extension of the hose ( 1 ). The suction ducts ( 3, 6 ), as well as the delivery ducts ( 4, 7 ) of the first and second tubular members ( 2, 5 ) are so sized as to allow the one to slide inside the other in a substantially fluid tight is manner. Each tubular member ( 2, 5 ) has an elongate protection member ( 8, 8 ′), for thermally insulating its respective delivery duct ( 4, 7 ) and prevent any direct contact therewith by users.

1 . A hose for wall-, floor-, moquettes-, carpet- and the like cleaning machines, comprising at least one first rigid tubular member, having at least one air and liquid suction duct, and at least one steam or other fluid delivery duct, said ducts being reciprocally coupled with their longitudinal axes in substantially parallel relationship, characterised in that it comprises at least one second rigid tubular member similar to the first tubular member having at least one air and liquid suction duct and at least one steam or other fluid delivery duct, said first and said second tubular members being slidably and telescopically coupled, in such a manner as to allow any adjustment of the overall extension of the hose.  
   
   
       2 . Hose as claimed in  claim 1 , characterised in that said suction ducts of said first and second tubular members are so sized as to allow the one to slide inside the other in a substantially fluid-tight manner.  
   
   
       3 . Hose as claimed in  claim 1 , characterised in that said delivery ducts of said first and second tubular members are so sized as to allow the one to slide inside the other in a substantially fluid-tight manner.  
   
   
       4 . Hose as claimed in  claim 1 , characterised in that each of said tubular members has an elongate protection member, for thermally insulating its respective steam of other fluid delivery duct and prevent any direct contact therewith by users.  
   
   
       5 . Hose as claimed in  claim 4 , characterised in that each elongate protection member has a longitudinal axis substantially parallel to its respective delivery duct.  
   
   
       6 . Hose as claimed in  claim 5 , characterised in that each elongate protection member is substantially as long as its respective delivery duct to wholly cover and thermally insulate the latter from the environment, regardless of the relative position of said first and second tubular members.  
   
   
       7 . Hose as claimed in  claim 1 , characterised in that each tubular member, said suction duct and said delivery duct are connected to each other by suitable removable link means.  
   
   
       8 . Hose as claimed in  claim 7 , characterised in that said removable link means are positioned at least at one longitudinal end of said suction ducts and delivery ducts.  
   
   
       9 . Hose as claimed in  claim 7 , characterised in that said suction ducts and delivery ducts of at least one of said tubular members are equipped with gas and/or liquid sealing members.  
   
   
       10 . Hose as claimed in  claim 9 , characterised in that said sealing means include at least one or more elastic rings, placed in appropriate annular seats of said suction ducts and of the delivery ducts.  
   
   
       11 . Hose as claimed in  claim 9 , characterised in that said sealing members include a lip seal, which is positioned at one longitudinal end of said delivery ducts and is so shaped as to allow expansion thereof, and to provide a sealing action caused by the pressure inside the delivery ducts.  
   
   
       12 . Hose as claimed in  claim 7 , characterised in that said first and said second tubular members include locking means adapted to selectively lock mutual sliding of said first and second tubular members.  
   
   
       13 . Hose as claimed in  claim 12 , characterised in that said selective locking means of said first and second tubular members are so shaped as to allow locking of said first and second tubular members in predetermined mutual positions.  
   
   
       14 . Hose as claimed in  claim 13 , characterised in that said selective locking means include a linear slider, which is linked to one of said tubular members, and a stop member operable by said linear slider and engageable in a plurality of substantially equally spaced recesses, uniformly arranged on the other of said tubular members.  
   
   
       15 . Hose as claimed in  claim 2 , characterised in that each of said tubular members has an elongate protection member, for thermally insulating its respective steam of other fluid delivery duct and prevent any direct contact therewith by users.  
   
   
       16 . Hose as claimed in  claim 3 , characterised in that each of said tubular members has an elongate protection member, for thermally insulating its respective steam of other fluid delivery duct and prevent any direct contact therewith by users.  
   
   
       17 . Hose as claimed in  claim 2 , characterised in that each tubular member, said suction duct and said delivery duct are connected to each other by suitable removable link means.  
   
   
       18 . Hose as claimed in  claim 3 , characterised in that each tubular member, said suction duct and said delivery duct are connected to each other by suitable removable link means.  
   
   
       19 . Hose as claimed in  claim 4 , characterised in that each tubular member, said suction duct and said delivery duct are connected to each other by suitable removable link means.  
   
   
       20 . Hose as claimed in  claim 5 , characterised in that each tubular member, said suction duct and said delivery duct are connected to each other by suitable removable link means.