Floor cleaner with a movably mounted suction nozzle

Abstract

A floor vacuum cleaner for cleaning a floor surface has a chassis with a chassis frame for traveling over the floor surface. A suction nozzle aspirates an airflow in the region of the floor surface. The suction nozzle is mounted relative to the chassis in the direction of travel to the front left and front right in each case by way of a mounting arrangement formed of a journal and a guide. The mounting arrangement allows a tilting of the suction nozzle about the journals, a rotation of the suction nozzle about a longitudinal axis, and a vertical movement of the suction nozzle, but a movement of the suction nozzle in the longitudinal direction of the chassis is prevented.

1 . A floor vacuum cleaner for cleaning a floor surface, the floor vacuum cleaner comprising:
 a chassis with a chassis frame for traveling on the floor surface, said chassis defining a longitudinal direction and a longitudinal axis;   a suction nozzle for an intake of an airflow at the floor surface;   said suction nozzle being mounted relative to said chassis by respective mounting arrangements at a front left and a front right of said chassis in a direction of travel, said mounting arrangements including a journal and a guide configured to enable a tilting of said suction nozzle about said journals, a pivoting of said suction nozzle about the longitudinal axis, and a vertical movement of said suction nozzle, but to prevent a movement of said suction nozzle in the longitudinal direction of said chassis.   
     
     
         2 . The floor vacuum cleaner according to  claim 1 , wherein a journal of said mounting arrangement is provided on said suction nozzle and a guide of said mounting arrangement is provided on said chassis. 
     
     
         3 . The floor vacuum cleaner according to  claim 1 , wherein said suction nozzle is mounted so as to be vertically movable at a rear left and rear right. 
     
     
         4 . The floor vacuum cleaner according to  claim 3 , further comprising a resilient element disposed to bias a rear end of said suction nozzle into a predetermined vertical position relative to said chassis. 
     
     
         5 . The floor vacuum cleaner according to  claim 4 , wherein said resilient element is formed by a resilient tubular connecting piece through which the airflow flows during an operation of the floor vacuum cleaner. 
     
     
         6 . The floor vacuum cleaner according to  claim 3 , wherein a deflection of a rear end of said suction nozzle upwardly and downwardly from a predetermined position is limited in each case to a predetermined path. 
     
     
         7 . The floor vacuum cleaner according to  claim 1 , wherein a deflection of the front end of the suction nozzle in an upward direction is limited to a predetermined value. 
     
     
         8 . The floor vacuum cleaner according to  claim 1 , further comprising a brush roller attached in said suction nozzle, said brush roller having an axis of rotation running transversely to the direction of travel. 
     
     
         9 . The floor vacuum cleaner according to  claim 1 , further comprising a sealing lip disposed in a region of a rear end of said suction nozzle. 
     
     
         10 . The floor vacuum cleaner according to  claim 1 , further comprising a sliding element for supporting a rear end of said suction nozzle relative to the floor surface.