Profiling element

Abstract

An element for profiling a wall of a borehole includes a shaft ( 12; 32 ) having at least one projecting radially, thread-tapping element ( 13 ), and a rotation-transmitting element ( 15, 35 ) provided at the first end ( 14; 34 ) of the shaft ( 12 ); and a cleaning member ( 21; 41, 46 ) provided on one of the opposite first ( 16; 34, 36 ) and second ( 34, 36 ) ends of the shaft a ( 12; 32 ).

1 . An element for profiling a wall of a borehole, comprising a shaft ( 12 ;  32 ) having opposite first ( 14 ;  34 ) and second ( 16 ;  36 ) ends, at least one projecting radially, thread-tapping element ( 13 ), and rotation-transmitting means ( 15 ,  35 ) provided at the first end ( 14 ;  34 ) of the shaft ( 12 ;  32 ); and a cleaning member ( 21 ;  41 , 46 ) provided on one of the opposite first ( 16 ;  34 ,  36 ) and second ( 34 ,  36 ) ends of the shaft ( 12 ;  32 ). 
   
   
       2 . A profiling element according to  claim 1 , comprising a further cleaning member ( 46 ) provided at another of the first ( 34 ,  36 ) and second ( 34 ,  36 ) ends of the shaft ( 32 ). 
   
   
       3 . A profiling element according to  claim 1 , wherein the cleaning member ( 46 ) is formed as a radially circumferential element ( 46 ). 
   
   
       4 . A profiling element according to  claim 1 , wherein the cleaning member ( 21 ;  41 ) is formed as a disc-shaped element. 
   
   
       5 . A profiling element according to  claim 1 , wherein the cleaning member ( 21 ,  41 ) is formed of a plastic material. 
   
   
       6 . A profiling element according to  claim 1 , wherein the profiling element ( 46 ) is formed of metal. 
   
   
       7 . A method of chemically setting a fastening element ( 10 ) with a profiling element ( 11 ) including a shaft ( 12 ;  32 ) having opposite first ( 14 ;  34 ) and second ( 16 ;  36 ) ends, at least one projecting radially thread-tapping element ( 13 ), and rotation-transmitting means ( 15 ;  35 ) provided at the first end ( 14 ;  34 ), and a cleaning member ( 21 ;  41 ,  46 ) provided on one of the opposite first ( 16 ;  34 ,  36 ) and second ( 34 ,  36 ) ends of the shaft ( 12 ;  32 ), the method comprising the steps of:
 a. drilling a borehole ( 4 ) in a constructional component ( 6 );   b. driving the profiling element ( 11 ) in the borehole ( 4 );   c. filling the borehole ( 4 ) with a hardenable mass ( 9 ); and   d. setting the fastening element ( 10 ) in the filed with the hardenable mass ( 9 ), borehole ( 4 ).   
   
   
       8 . A method according to  claim 7 , wherein the drilling step includes drilling the borehole ( 4 ) with a minimal depth (T) corresponding to sum of a predetermined anchoring depth (V) of the fastening element ( 10 ) in the hardenable mass ( 11 ) and of a length (L) of the profiling element ( 11 ). 
   
   
       9 . A method according to  claim 7 , comprising the step of withdrawing the profiling element ( 11 ) from the borehole ( 4 ) before filling the borehole ( 4 ) with the hardenable mass ( 9 ).