Patent ID: 7192095

Claim:
A support base ( 1 ) adapted to be mounted to the surface ( 2 ) of a milling drum ( 3 ) defining a direction of rotation ( 31 ), said support base ( 1 ) including a recess ( 4 ) adapted to receive removably a shank portion ( 14 ; 21 ) of a body ( 5 ; 7 ) to be fixedly mounted to said support base ( 1 ), said recess ( 4 ) being at least partly formed by a wall ( 103 ) including a slot ( 8 ) open at one end ( 83 ), said open end ( 83 ) being adapted for insertion of a fastening means ( 9 ) into said slot ( 8 ) for fixing said body ( 5 ; 7 ) to said support base ( 1 ), wherein said recess ( 4 ) includes a generally C-shaped first seat ( 10 ) formed by a first side surface ( 101 ), and a second side surface ( 102 ) opposite thereto, said first and second side surfaces converging to a third side surface ( 104 ) between said first and second side surfaces ( 101 , 102 ); wherein said support base ( 1 ) further includes a support surface ( 112 ) adjacent said second side surface ( 102 ) of said recess ( 4 ) and inclined thereto, a reaction surface ( 111 ) and said support surface ( 112 ) forming a generally dovetail shaped second seat ( 11 ) above and adjacent said first seat ( 10 ), and wherein said wall ( 103 ) in which said slot ( 8 ) is formed has an outer surface ( 105 ) opposite to said third surface ( 104 ), said outer surface ( 105 ) includes an undercut ( 106 ) adapted to receive at least a portion of said fastening means ( 9 ).