Rasp holder fitted with a handle

Abstract

Tool holder, in particular a milling cutter holder, which comprises a main body ( 1 ) with a substantially oblong cylindrical shape defining a channel in which a transmission ( 2 ) passes designed to transmit to the tool, in particular the milling cutter, a movement from the axis of a drive motor, and a gripping element ( 3 ) for gripping the tool holder, characterised in that an intermediate part ( 30 ) is provided arranged between the transmission ( 2 ) and the axis of the drive motor, the intermediate part comprising means for enabling the rotatable connection of said intermediate part to the transmission and the axis of the motor, the intermediate part comprising means ( 32 ) forming an abutment designed to lock in translation in the longitudinal direction of displacement of the axis of transmission by abutment in particular against the gripping element.

What is claimed is: 
     
         1 . Tool holder, in particular a milling cutter holder, which comprises a substantially oblong cylindrical body defining a channel ( 5 ) into which a transmission ( 2 ) passes which is designed to transmit to the tool, in particular the milling cutter, a movement from the axis of a drive motor acting on a proximal end of the transmission, and a gripping element for gripping the tool holder fixed to the body, characterised in that the body is formed by at least two distinct parts, a distal main part ( 1 ) and a proximal auxiliary part ( 3 ), the channel having a respective section defined by each part, the gripping element being fixed to the auxiliary part and the proximal end of the transmission being located in the section of the channel designed by the auxiliary part. 
     
     
         2 . Tool holder according to  claim 1 , characterised in that the two distinct parts, the main part and auxiliary part, are arranged consecutively. 
     
     
         3 . Tool holder according to  claim 2 , characterised in that the two parts, the main part and the auxiliary part, are fixed to one another in a detachable manner by detachable securing means. 
     
     
         4 . Tool holder according to  claim 3 , characterised in that the detachable securing means comprise two rings joined respectively to the two parts, the main part and auxiliary part. 
     
     
         5 . Tool holder according to  claim 1 , characterised in that means are provided for adjusting the relative orientation in rotation of the auxiliary part to the main part, in particular by the cooperation of a section with  6  sides of the main body with an opening with a cross section of  6  sides of the auxiliary part ( 3 ). 
     
     
         6 . Tool holder according to  claim 1 , characterised in that an intermediate part ( 30 ) is provided arranged between the transmission ( 2 ) and the axis of the drive motor, the intermediate part comprising means for enabling the rotatable connection of this intermediate part to the transmission and the axis of the motor, the intermediate part comprising means ( 32 ) forming an abutment designed to lock in translation in the longitudinal direction of displacement of the axis of transmission by abutment in particular against the auxiliary part ( 3 ). 
     
     
         7 . Tool holder according to  claim 6 , characterised in that the intermediate part is received partly in the auxiliary part to be joined in rotation with the transmission. 
     
     
         8 . Tool holder according to  claim 1 , characterised in that the auxiliary part ( 3 ) receives within it an element ( 23 ) made from an elastomer material comprising an element in the form of a tube ( 24 ) and a ring ( 25 ) projecting laterally from the tube ( 24 ) to form a shoulder designed to abut against the edge ( 26 ) of a proximal opening of the auxiliary part ( 3 ). 
     
     
         9 . Tool holder according to  claim 6 , characterised in that the intermediate part ( 30 ) comprises a section ( 31 ) in the form of a tube designed to be inserted into the element ( 21 ) with the interposition of the elastomer tube ( 24 ). 
     
     
         10 . Tool holder according to  claim 6 , characterised in that a ring ( 32 ) projects laterally from the intermediate part ( 30 ) and is designed to abut against the edge ( 26 ) of the proximal opening of a tube ( 21 ) of the auxiliary part ( 3 ) with the interposition of the elastomer ring ( 25 ) to thus prevent movement in the longitudinal direction of transmission. 
     
     
         11 . Tool holder according to  claim 6 , characterised in that the part ( 30 ) is terminated at the proximal end by a section ( 33 ) with a substantially cylindrical form designed for connection with the axis of the motor. 
     
     
         12 . Tool holder according to  claim 1 , characterised in that the transmission ( 2 ) comprises at least two rods ( 10 ,  11 ) connected by a cardan joint formed by a fork ( 44 ) coming from rod ( 10 ), two half-forks ( 45 ,  46 ) coming from rod ( 11 ) and a half-pin ( 47 ) and a single-piece brace.