Tool Having A Mounting Opening For Positive Connection To Different Drive Shafts

Abstract

A tool is disclosed having a mounting opening for positive connection to a drive shaft that can be driven oscillatingly, the mounting opening comprising a plurality of outwardly extending projections each having an outer convex section that ends on both sides in concave lateral flanks, with neighboring lateral flanks joining each other on their way toward the center axis of the mounting opening to form a common bulge, concave on the outside, the shape of the outwardly extending projections, of the lateral flanks and of the bulges being such that there can be effected, optionally, either a positive connection to a first raised securing section of a first drive shaft, having a plurality of outwardly extending convex raised portions each having a rounded tip and rounded concave lateral flanks, or, optionally, a positive connection to a second securing section of a second drive shaft, having a plurality of raised positive-connection elements arranged in regular intervals on a circular line.

1 . A tool having a mounting opening configured for positive connection to a drive shaft that can be driven oscillatingly about its longitudinal axis, the mounting opening comprising a plurality of outwardly extending projections each having an outer convex section ending on both sides in concave lateral flanks, with neighboring lateral flanks joining each other on their way toward the center axis of the mounting opening to form a common bulge, concave on the outside;
 wherein said projections have outer ends and said bulges have inner ends, both said outer ends and said inner ends being arranged along circles concentric to said center axis; and   wherein said outwardly extending projections, said lateral flanks and said bulges define a shape of the mounting opening being matched to a first raised securing section of a first drive shaft and to a second raised securing section of a second drive shaft, so as to allow, optionally, either a positive connection to said first raised securing section of said first drive shaft, having a plurality of outwardly extending convex raised portions each having a rounded tip and rounded concave lateral flanks, or, optionally, a positive connection to said second raised securing section of said second drive shaft, having a plurality of raised positive-connection elements of rectangular or substantially trapezoidal shape, arranged in regular intervals on a circular line.   
   
   
       2 . A tool having a mounting opening configured for positive connection to a drive shaft that can be driven oscillatingly about its longitudinal axis, the mounting opening comprising a plurality of outwardly extending projections each having an outer convex section ending on both sides in concave lateral flanks, with neighboring lateral flanks joining each other on their way toward the center axis of the mounting opening to form a common bulge, concave on the outside;
 wherein said outwardly extending projections, said lateral flanks and said bulges define a shape of the mounting opening so as to allow, optionally, either a positive connection to a first raised securing section of a first drive shaft, having a plurality of outwardly extending convex raised portions each having a rounded tip and rounded concave lateral flanks, or, optionally, a positive connection to a second raised securing section of a second drive shaft, having a plurality of raised positive-connection elements arranged in regular intervals on a circular line.   
   
   
       3 . The tool of  claim 2 , wherein said mounting opening has a shape so as to allow a positive connection to said second raised securing section of said second drive shaft, having a plurality of raised positive-connection elements of rectangular or substantially trapezoidal shape arranged on a circular line. 
   
   
       4 . The tool of  claim 1 , wherein said projections have outer ends and said bulges have inner ends, both said outer ends and said inner ends being arranged along circles concentric to said center axis. 
   
   
       5 . The tool of  claim 1 , wherein said mounting opening has a total number N of projections, wherein said first raised securing section comprises n, convex raised portions, wherein said second raised securing section comprises a total of n 2  positive-connection elements, and wherein said total number N is an integral multiple of n, convex raised portions and of n 2  positive-connection elements. 
   
   
       6 . The tool of  claim 2 , wherein said mounting opening has a total number N of projections, wherein first raised securing section comprises n, convex raised portions, wherein said second raised securing section comprises a total of n 2  positive-connection elements, and wherein said total number N is an integral multiple of n, convex raised portions and of n 2  positive-connection elements. 
   
   
       7 . The tool of  claim 5 , wherein said total number N is 12, said number n, of said convex raised portions is 3, 4, 6 or 12, and said number n 2  of said positive-connection elements is 3, 4, 6 or 12. 
   
   
       8 . The tool of  claim 6 , wherein said total number N is 12, said number n, of said convex raised portions is 3, 4, 6 or 12, and said number n 2  of said positive-connection elements is 3, 4, 6 or 12. 
   
   
       9 . The tool of  claim 1 , wherein said mounting opening is configured as a stamped opening. 
   
   
       10 . The tool of  claim 2 , wherein said mounting opening is configured as a stamped opening. 
   
   
       11 . The tool of  claim 1 , which is configured as a grinding tool. 
   
   
       12 . The tool of  claim 1 , which is configured as a scraping tool. 
   
   
       13 . The tool of  claim 1 , which is configured as a sawing tool. 
   
   
       14 . The tool of  claim 2 , which is configured as a grinding tool. 
   
   
       15 . The tool of  claim 2 , which is configured as a scraping tool. 
   
   
       16 . The tool of  claim 2 , which is configured as a sawing tool.