Hand-Held Power Tool

Abstract

The invention relates to a hand-held power tool having a bearing ring ( 19 ) inserted into a bearing receptacle ( 18 ), wherein the bearing receptacle ( 18 ) and the bearing ring ( 19 ) have recessed ring sectors ( 17 ) positioned relative to one another in an overlapping manner, of which the ring sector ( 17 ) of the bearing ring is configured by breaking out a circumferential section ( 22 ) of the bearing ring ( 19 ), which is defined by predetermined breaking points ( 20 ).

1 . A hand-held power tool, in particular a chisel hammer and/or rotary hammer, having an output element ( 4 ) that accommodates a tool and is guided in a bearing race ( 19 ), which is situated in an encompassing bearing socket ( 18 ), characterized in that the bearing socket ( 18 ) and the bearing race ( 19 ) are embodied in the form of an open rings having cut-out ring sectors ( 17 ) situated congruent to each other and the cut-out ring sector ( 17 ) of the bearing race ( 19 ) is comprised of a circumference section ( 22 ) that is delimited by detachment points (desired fracture points  20 ) and is broken out. 
     
     
         2 . The hand-held power tool as recited in  claim 1 , characterized in that the open bearing race ( 19 ) is accommodated in a dimensionally stable fashion by the circular or oval bearing socket ( 18 ). 
     
     
         3 . The hand-held power tool as recited in  claim 1 , characterized in that the open bearing race ( 19 ) is held in the bearing socket ( 18 ) in a precisely fitting, in particular form-locked, fashion. 
     
     
         4 . An assembly method for a hand-held power tool, which has a bearing race ( 19 ) situated in an annular bearing socket ( 18 ), in particular as recited in one of the preceding claims, characterized in that the bearing race ( 19 ) is inserted in the form of a closed ring into the bearing socket ( 18 ), which is embodied in the shape of an open ring and has a cut-out ring sector ( 17 ), and a bearing race circumference section ( 22 )—which is delimited by detachment points (desired fracture points  20 ) and is situated congruent to the cut-out ring sector ( 17 ) of the bearing socket ( 18 )—is detached from the bearing race ( 19 ), in particular broken out from it. 
     
     
         5 . A bearing race, particularly for a hand-held power tool as recited in  claim 1 , which is for insertion into a bearing socket ( 18 ), characterized in that the bearing race ( 19 ) has a circumference section ( 22 ), which is delimited by detachment points (desired fraction points  20 ) and is to be detached. 
     
     
         6 . The bearing race as recited in  claim 5 , characterized in that the bearing race ( 19 ) has desired fracture points ( 20 ) serving as detachment points for the circumference section ( 22 ) and the circumference section ( 22 ) is to be broken out. 
     
     
         7 . The bearing race as recited in  claim 5 , characterized in that the desired fracture points ( 20 ) are embodied in the form of notches ( 21 ) provided in the inner and/or outer circumference of the bearing race ( 19 ). 
     
     
         8 . The bearing race as recited in  claim 7 , characterized in that the notches ( 21 ) provided in the inner and/or outer circumference of the bearing race ( 19 ) are situated opposite each other, in particular symmetrically opposite each other. 
     
     
         9 . The bearing race as recited in  claim 7 , characterized in that the bearing race ( 19 ) is thickened on the outside in the region that coincides with at least one of its notches ( 21 ) provided on the inner circumference. 
     
     
         10 . The bearing race as recited in  claim 9 , characterized in that the outline of the thickened region ( 23 ) follows the outline of the notch ( 21 ). 
     
     
         11 . The bearing race as recited in  claim 10 , characterized in that the wall thickness of the bearing race ( 19 ) is approximately the same in the region of the notch ( 21 ) due to the presence of the thickened region ( 23 ) situated to coincide with the notch ( 21 ). 
     
     
         12 . The bearing race as recited in  claim 5 , characterized in that the notches ( 21 ) are embodied in the form of angled grooves, in particular acutely angled grooves. 
     
     
         13 . The bearing race as recited in  claim 5 , characterized in that the bearing race ( 19 ) is provided with recesses ( 24 ), in particular grooves, on its end surface to permit it to be situated in a bearing socket ( 18 ) in a rotationally fixed fashion. 
     
     
         14 . The bearing race as recited in  claim 5 , characterized in that the bearing race ( 19 ) is composed of brittle-fracturing materials, in particular is composed of a sintered metal body.