Power tool and debris extraction system therefor

Abstract

The invention relates to the provision of a power tool, such as a sander, which has a working portion which, when moved with respect to a workpiece creates debris. The invention provides a debris collection bag mounted in a housing on the power tool body which allows for the collection of debris from the vicinity of the working portion. The debris collection bag is selectively removable for discarding the debris and/or washing.

1 . A power tool, said power tool including a working portion which generates debris in use, drive means for selective activation to provide driving movement of the working portion in use and debris extraction means for extracting debris from the area at and adjacent to said working portion to a position remote from said working portion and wherein said debris extraction means includes at least one housing in which a debris collection bag is removably located.  
   
   
       2 . A power tool according to  claim 1  wherein the extraction means includes an air flow passage through which debris from the working portion or adjacent thereto passes to the location remote from the working portion of the tool.  
   
   
       3 . A power tool according to  claim 2  wherein the air flow through the at least one passage is generated via a suction means.  
   
   
       4 . A power tool according to  claim 1  wherein the debris collection bag is removably located within the housing to allow the debris collection bag to be emptied and replaced for repeated use.  
   
   
       5 . A power tool according to  claim 4  wherein the housing is detachably mounted to the power tool and, when detached, allows retention and transport of the debris collection bag to a required location for emptying.  
   
   
       6 . A power tool according to  claim 5  wherein the housing is detachably attached to said power tool via any or any combination of complimentary screw threaded means, bayonet fitting, friction fit, screws, clips, ties and/or the like.  
   
   
       7 . A power tool according to  claim 1  wherein the housing and debris collection bag are located at the rear of the working portion on the power tool.  
   
   
       8 . A power tool according to  claim 1  wherein the housing has one or more apertures located to allow the passage of air therethrough.  
   
   
       9 . A power tool according to  claim 1  wherein the housing and/or debris collection bag is formed with at least a portion of the walls formed of air permeable material.  
   
   
       10 . A power tool according to  claim 1  wherein the debris which is located is predominantly fine particles of debris, wood and/or metal.  
   
   
       11 . A debris extraction system for use with a power tool, said debris extraction system including at least one housing in which a debris collection bag is removably located therein and said housing or detachably attached to the power tool.  
   
   
       12 . A debris extraction system according to  claim 11  wherein the housing is provided with attachment means for detachably attaching said housing to said power tool in use and to allow removal of the collection bag for cleaning.  
   
   
       13 . A powered sanding tool, said sanding tool including a working portion in the form of an abrasive surface for sanding a workpiece, drive means for driving movement of said working portion in one or more required directions and extraction means for extracting debris from an area at or adjacent said workpiece and working portion to a location remote from said surface and wherein said extraction means includes at least one housing in which a debris collection bag is removably located, said housing communicating with the working portion via at least one aperture at or adjacent to the working portion and one or more passages connecting the said at least one aperture with the said housing.  
   
   
       14 . A powered sanding tool according to  claim 13  wherein said housing has the debris collection has removably located therein.