Tool with tool elements

Abstract

A tool with tool elements, rotating grinding and/or sanding tool is provided. The tool consists of a tool portion and a mounting portion, which secures the tool elements in the tool. The tool is distinguished in that the tool portion comprises first mount, and the mounting portion includes second corresponding mount for engaging with the first mount. The first and second mount include one or more resilient tabs, each of which is provided with at least one barb, and furthermore the mount comprises one or more recesses. When the tool portion and the mounting portion are assembled, the barbs on the resilient tabs will lock in the recesses of the mounting portion which are designed for this, locking the tool portion and the mounting portion to each other.

1 . A tool with tool elements, grinding and/or sanding elements, which tool is designed for mounting on a machining unit with a motor, which rotates the tool via a drive shaft, which tool comprises a mounting portion and a tool portion, where the tool portion comprises grooves to receive the tool elements, where the mounting portion comprises fastener for fastening the tool, directly or indirectly, to the drive shaft, wherein the tool elements are secured in the tool portion, after the tool is assembled by connecting the mounting portion and the tool portion,
 wherein   the tool portion comprises a first mount,   the mounting portion comprises second corresponding mount for engaging with the first mount, and   the first and second mount comprise one or more resilient tabs, each of which is provided with at least one barb, and the first and second mount furthermore comprise one or more recesses for receiving said barbs with a snap action in the assembled state of the tool for locking of the tool portion and the mounting portion to each other with the tool elements secured in the grooves.   
     
     
         2 . The tool according to  claim 1 , wherein the tool portion has a first inner wall, which is directed toward the mounting portion, the mounting portion has a second inner wall, which is directed toward the tool portion, and the radial outer surface of the second inner wall is dimensioned such as to be enclosed by the first inner wall when the tool is in the assembled state, and in connection with the first inner cylindrical wall or in openings in the first wall there are arranged resilient tabs with barbs,
 and along the radial outer side of the second inner wall in the mounting portion there are arranged a number of recesses in the mounting portion, corresponding in position, shape, and number to the tool portion's resilient tabs.   
     
     
         3 . The tool according to  claim 1 , wherein along the periphery of the tool portion there are arranged a number of pins, and along the periphery of the mounting portion there is devised a slot, in which the tool portion's pins are designed to engage in order to secure the periphery of the tool portion to the mounting portion. 
     
     
         4 . The tool according to  claim 3 , wherein the slot is arranged in the periphery of the mounting portion or on a radially inner surface of an outer wall, which outer wall is directed substantially toward the tool portion along the periphery of the mounting portion. 
     
     
         5 . The tool according to  claim 4 , wherein the slots for the tool elements are formed as slits which are open or closed at the periphery of the tool portion. 
     
     
         6 . The tool according to  claim 1 , wherein at least one guide groove is placed in the first inner wall of the tool portion, and on the mounting portion there is placed at least one guide pin in connection with the second inner wall of the mounting portion, so that the guide pin is designed to engage with the guide groove when assembling the tool portion and the mounting portion. 
     
     
         7 . The tool according to  claim 1 , wherein the tool portion is formed as a disk, a cylinder, a conical shape, or with a curved shape, such as a concave or convex shape. 
     
     
         8 . The tool according to  claim 1 , wherein in that the outer periphery of the tool has one of the following shapes: round, oval or polygonal, wherein the polygonal is selected from triangular, rectangular, pentagonal, hexagonal, heptagonal, and octagonal. 
     
     
         9 . The tool according to  claim 1 , wherein the tool elements are mounted in base pieces, which base pieces are oversized at their bottom in relation to the grooves, so that the base pieces are secured in the slots when the mounting portion and the tool portion are assembled. 
     
     
         10 . The tool according to  claim 1 , wherein the tool elements comprise grinding elements for grinding, sanding, polishing or similar work, where the grinding elements may be slotted, while the tool elements also comprise support brushes, which support the grinding elements, wherein the grinding elements and/or the support brushes are fastened in base pieces which are mounted in the grooves in the tool portion. 
     
     
         11 . The tool according to  claim 1 , wherein the tool rotates about a central axis, for which the edge portion of a number of tool elements is mounted at an angle to the outer surface of the tool portion and/or at an angle to the center axis.