Vacuum cleaner with scraper assembly

Abstract

The present disclosure is generally directed to a scraper assembly for a vacuum cleaning head. The scraper assembly is configured to pivot to a first closed position when the head is moving in a forward direction, and configured to pivot to a second open position when the head is moving in reverse direction.

What is claimed is: 
     
         1 . A cleaning head for a vacuum system, comprising:
 a main body including a vacuum orifice;   a controllable cleaning roller attached to the main body and disposed at least partially within the vacuum orifice; and   a scraper assembly disposed adjacent to the controllable cleaning roller; wherein the scraper assembly configured to pivot to a first closed position when the main body is moving in a forward direction, and configured to pivot to a second open position when the main body is moving in reverse direction.   
     
     
         2 . The cleaning head of  claim 1 , wherein the closed position to cause dirt and debris to be pushed forward, and the open position to cause dirt and debris to pass through the scraper assembly. 
     
     
         3 . The cleaning head of  claim 1 , wherein the scraper assembly comprising:
 a first plurality of overlapping flap members disposed on a first side of a centerline of the scraper assembly, each flap member having a flap extension portion that pivots towards an adjacent flap member in the first closed position, and the flap member pivots away from the adjacent flap member in the second open position to define an opening between the flap members;   a center flap member centered approximately on the centerline of the scraper assembly; and   a second plurality of overlapping flap members disposed on a second side of the centerline of the scraper assembly in a mirrored fashion of the first plurality of overlapping flap members with respect to the centerline.   
     
     
         4 . The cleaning head of  claim 3 , wherein the scraper assembly further comprising a removable frame; wherein the first plurality of overlapping flap members, the second plurality of overlapping flap members, and the center flap member being disposed on the removable frame. 
     
     
         5 . The cleaning head of  claim 3 , wherein each flap extension portion having a triangular shape. 
     
     
         6 . The cleaning head of  claim 3 , wherein each flap extension portion having a truncated polygon shape. 
     
     
         7 . The cleaning head of  claim 3 , wherein each flap extension portion having a curved outer edge. 
     
     
         8 . A cleaning head for a vacuum system, comprising:
 a main body including a vacuum orifice;   a controllable cleaning roller attached to the main body and disposed at least partially within the vacuum orifice; and   a scraper assembly disposed adjacent to the controllable cleaning roller; wherein the scraper assembly configured to pivot to a first closed position when the main body is moving in a forward direction, and configured to pivot to a second open position when the main body is moving in reverse direction; wherein the scraper assembly comprising:
 a first plurality of overlapping flap members disposed on a first side of a centerline of the scraper assembly, each flap member having a flap extension portion that pivots towards an adjacent flap member in the first closed position, and the flap member pivots away from the adjacent flap member in the second open position to define an opening between the flap members; 
   a center flap member centered approximately on the centerline of the scraper assembly; and   a second plurality of overlapping flap members disposed on a second side of the centerline of the scraper assembly in a mirrored fashion of the first plurality of overlapping flap members with respect to the centerline.   
     
     
         9 . The cleaning head of  claim 8 , wherein the closed position to cause dirt and debris to be pushed forward, and the open position to cause dirt and debris to pass through the scraper assembly. 
     
     
         10 . The cleaning head of  claim 8 , wherein the scraper assembly further comprising a removable frame; wherein the first plurality of overlapping flap members, the second plurality of overlapping flap members, and the center flap member being disposed on the removable frame. 
     
     
         11 . The cleaning head of  claim 8 , wherein each flap extension portion having a triangular shape. 
     
     
         12 . The cleaning head of  claim 8 , wherein each flap extension portion having a truncated polygon shape. 
     
     
         13 . The cleaning head of  claim 8 , wherein each flap extension portion having a curved outer edge.