Tool Holding Device, Machine Tool, Machine Tool System, and Tool Means

Abstract

A tool receiving device for an arrangement of at least one tool mechanism, in particular of at least one tool disc, on a portable machine tool, in particular on an angle grinder is disclosed. The tool receiving device has (i) at least one receiving unit on which the at least one tool mechanism can be fixed, and (ii) at least one retaining unit particularly rotatably supported on the receiving unit for at least axially fixing the receiving unit, in particular the tool mechanism, on an output unit. The receiving unit includes at least one driver element and at least one mounting element which are rotatably connectable to each other by the retaining unit. The retaining unit includes at least one retaining element which is configured for a screw connection to the output unit.

1 . A tool receiving device for an arrangement of at least one tool mechanism on a portable machine tool, comprising:
 at least one receiving unit, on which the at least one tool mechanism can be fixed, and   at least one retaining unit rotatably supported on the receiving unit and configured to at least axially fix the tool mechanism on an output unit,   wherein the at least one receiving unit comprises at least one driver element and at least one mounting element which are rotatably connectable to each other with respect to each other by the at least one retaining unit, and   wherein the at least one retaining unit comprises at least one retaining element implemented as a screw connection to the output unit.   
     
     
         2 . The tool receiving device according to  claim 1 , wherein:
 the output unit is (i) configured to be connected to the machine tool, and (ii) captively connected to the at least one receiving unit and to the at least one retaining unit.   
     
     
         3 . The tool receiving device according to  claim 2 , wherein the output unit is captively connected to the at least one receiving unit and to the at least one retaining unit by at least one connecting element which is configured differently from the at least one driver element. 
     
     
         4 . The tool receiving device according to  claim 2 , wherein the output unit is formed integrally with the at least one driver element. 
     
     
         5 . The tool receiving device according to  claim 1 , wherein the at least one retaining unit comprises at least one actuating element pivotally connected to the at least one retaining element relative to the at least one retaining element. 
     
     
         6 . The tool receiving device according to  claim 1 , wherein the at least one retaining element is configured to form a rotary driving surface for the at least one mounting element for rotating the at least one mounting element when the at least one retaining element is rotated. 
     
     
         7 . The tool receiving device according to  claim 5 , wherein the at least one retaining element and the at least one actuating element are pivotally connected to each other about a pivot axis, which is arranged outside of an axis of rotation of the at least one retaining element. 
     
     
         8 . The tool receiving device according to  claim 1 , wherein the at least one driver element is configured to form at least two stops for the at least one mounting element that limit a rotatability of the mounting element relative to the driver element to an angle of a maximum of 45°. 
     
     
         9 . The tool receiving device according to  claim 1 , wherein a rotatability of the at least one retaining element is limited to an angle of a maximum of 520°. 
     
     
         10 . The tool receiving device according to  claim 1 , wherein the at least one retaining unit is configured to form a screw head end which has a maximum diameter about an axis of rotation of the at least one retaining element which is less than a maximum diameter of the at least one mounting element about the axis of rotation. 
     
     
         11 . The tool receiving device according to  claim 1 , wherein the at least one retaining element comprises a thread which has a thread pitch of at least 0.6 mm. 
     
     
         12 . The tool receiving device according to  claim 1 , wherein the at least one retaining element comprises a thread which has a maximum thread diameter of at least 5.8 mm. 
     
     
         13 . The tool receiving device according to  claim 3 , wherein the at least one actuating element is at least partially made of plastic. 
     
     
         14 . A machine tool having a tool receiving device according to  claim 1 . 
     
     
         15 . A machine tool system, comprising:
 a machine tool,   at least one tool mechanism, and   a tool receiving device according to  claim 1 ,   wherein the at least one retaining unit is configured to form a screw head end, which has a maximum diameter about an axis of rotation of the retaining element, which is less than a minimum diameter of a connection opening of the at least one tool mechanism about the axis of rotation.   
     
     
         16 . A tool mechanism for a machine tool system according to  claim 15 . 
     
     
         17 . The tool receiving device according to  claim 1 , wherein the at least one tool mechanism is at least one tool disc. 
     
     
         18 . The tool receiving device according to  claim 1 , wherein the portable machine tool is an angle grinder. 
     
     
         19 . The tool receiving device according to  claim 1 , wherein the at least one driver element is configured to form at least two stops for the at least one mounting element that limit a rotatability of the mounting element relative to the driver element to an angle of a maximum of 42°. 
     
     
         20 . The tool receiving device according to  claim 1 , wherein a rotatability of the at least one retaining element is limited to an angle of a maximum of 504°.