Device for driving instruments and tools and the use thereof

Abstract

The invention relates to a device for driving instruments and tools comprising a housing ( 12 ) for mounting a motor ( 18 ), a power supply device ( 20 ) associated with the motor ( 18 ), and a conical drive element ( 22 ) partially protruding out of the housing ( 12 ) and associated with the motor ( 18 ) and interacting with the instruments or tools, and a switching device ( 16 ) disposed on the outside ( 14 ) of the housing ( 12 ) for switching on and off the motor ( 18 ), the switching device ( 16 ) comprising an actuating element ( 26 ) extending at least partially around the circumference of the housing ( 12 ) and being designed to be rotatable relative to the housing ( 12 ), and the use thereof.

1 . A device for driving instruments and tools, comprising a housing ( 12 ) for accommodating a motor ( 18 ), a power supply device ( 20 ) associated with the motor ( 18 ), and a conical drive element ( 22 ) associated with the motor ( 18 ), partially projecting from the housing ( 12 ) and interacting with the instruments or tools, and a switching device ( 16 ) disposed on the exterior side of the housing ( 12 ) for switching the motor on and off, wherein the switching device ( 16 ) comprises an actuating element ( 26 ) extending at least partially, particularly completely, about the circumference of the housing ( 12 ) and is configured in a relatively pivotable manner opposite of the housing ( 12 ). 
     
     
         2 . The device according to  claim 1 , characterized in that the actuating element ( 26 ) of the switching device ( 16 ) is embodied in an annular or disk-shaped manner. 
     
     
         3 . The device according to  claim 1 , characterized in that the actuating element ( 26 ) of the switching device ( 16 ) is embodied as a ring that is supported particularly on a part ( 12 ′) of the housing ( 12 ). 
     
     
         4 . The device according to  claim 1 , characterized in that the actuating element ( 26 ) of the switching device ( 16 ) extends beyond the exterior side ( 14 ) of the housing ( 12 ). 
     
     
         5 . The device according to  claim 1 , characterized in that the actuating element ( 26 ) of the switching device ( 16 ) is equipped with a profiling ( 32 ) on the exterior circumference ( 30 ) thereof. 
     
     
         6 . The device according to  claim 5 , characterized in that the profiling ( 32 ) on the exterior circumference ( 30 ) of the actuating element ( 26 ) of the switching device ( 16 ) is embodied as a knurling, gearwheel, or crown gear, or in the form of at least two recessed grips ( 96 ) or the like. 
     
     
         7 . The device according to  claim 1 , characterized in that the actuating element ( 26 ) of the switching device ( 16 ) is embodied in a manner pivoting relative about the longitudinal axis ( 34 ) of the housing ( 12 ) or an axis parallel to the same opposite of the housing ( 12 ). 
     
     
         8 . The device according to  claim 1 , characterized in that the actuating element ( 26 ) of the switching device ( 16 ) can be pivoted relative opposite of the housing ( 12 ) from a first position, particularly an initial position, into a second position, particularly a contact position, and vice versa. 
     
     
         9 . The device according to  claim 1 , characterized in that at least one stop element ( 36 ) is associated with the actuating element ( 26 ) of the switching device ( 16 ) for limiting the relative pivoting of the actuating element ( 26 ) opposite of the housing ( 12 ). 
     
     
         10 . The device according to  claim 1 , characterized in that the actuating element ( 26 ) of the switching device ( 16 ) is equipped with at least one substantially curved elongated hole ( 38 ) or recess, in which a pin ( 40 ), bolt or similar guide element is substantially extending parallel to the longitudinal axis ( 34 ) of the housing ( 12 ) is accommodated. 
     
     
         11 . The device according to  claim 1 , characterized in that the actuating element ( 26 ) of the switching device ( 16 ) is equipped with two substantially curved elongated holes ( 38 ) or recesses, in which one pin ( 40 ), bolt or similar guide element extending substantially parallel to the longitudinal axis ( 34 ) of the housing ( 12 ) is accommodated. 
     
     
         12 . The device according to  claim 11 , characterized in that the two curved elongated holes ( 38 ) or recesses are disposed on the actuating element ( 26 ) of the switching device ( 16 ) at an offset of substantially about 180° to each other. 
     
     
         13 . The device according to  claim 1 , characterized in that the switching device ( 16 ) comprises a magnetic switch ( 44 ), particularly a Reed switch, for turning the motor ( 18 ) on and off. 
     
     
         14 . The device according to  claim 1 , characterized in that the switching device ( 16 ) comprises a contact wire ( 46 ) for the electric connection of the motor ( 18 ) to the power supply device ( 20 ) and a magnet ( 48 ) interacting with the contact device ( 46 ). 
     
     
         15 . The device according to  claim 14 , characterized in that the contact wire ( 46 ) of the switching device ( 16 ) is disposed substantially in a groove ( 49 ) extending approximately parallel to the longitudinal axis ( 34 ) of the housing ( 12 ), and the magnet ( 48 ) is disposed on the actuating element ( 26 ) of the switching device ( 16 ) on the interior circumference ( 5 ) thereof facing the contact wire ( 46 ), and vice versa. 
     
     
         16 . The device according to  claim 1 , characterized in that the switching device ( 16 ) comprises a resetting device ( 52 ), which is associated with the actuating element ( 26 ) and pressurizes the actuating element ( 26 ) such that the actuating element ( 26 ) may be automatically returned from the contact position into the initial position. 
     
     
         17 . The device according to  claim 16 , characterized in that the resetting device ( 52 ) has a magnetic arrangement ( 54 ), wherein a magnet ( 56 ) is disposed on or in the actuating element ( 26 ) of the switching device ( 16 ), and two magnets ( 58 ,  60 ) facing the magnet ( 56 ) are disposed in the housing ( 12 ). 
     
     
         18 . The device according to  claim 17 , characterized in that the resetting device ( 52 ) has a spring arrangement, wherein a spring is disposed between the actuating element ( 26 ) of the switching device ( 16 ) and the housing ( 12 ). 
     
     
         19 . The device according to  claim 1 , characterized in that the switching device ( 16 ) comprises a relay ( 76 ) that is associated with the motor ( 18 ). 
     
     
         20 . The device according to  claim 1 , characterized in that the switching device ( 16 ) comprises a device ( 62 ) for displaying the current state of the power supply device ( 20 ) associated with the motor ( 18 ). 
     
     
         21 - 30 . (canceled)