Patent ID: 8291790

Claim:
A sharpening device for manually sharpening cutting teeth ( 2 , 2 ′) of saw chains ( 1 ) for chain saws, said sharpening device comprising a longitudinal axis ( 42 ) extending in a longitudinal direction of the sharpening device, a frame ( 13 ), which has a first head part ( 17 ) and a second head part ( 18 ) arranged at a spacing from each other and two pairs of two guide rods ( 19 , 19 ′, 20 , 20 ′), which are arranged parallel to one another and to the longitudinal axis ( 42 ) and rigidly connect the first head part ( 17 ) and the second head part ( 18 ) to each other, one round file ( 14 , 15 ) associated with each pair of guide rods ( 19 , 19 ′, 20 , 20 ′) and arranged parallel to the longitudinal axis ( 42 ), said round files ( 14 , 15 ) being held in the first head part ( 17 ) and the second head part ( 18 ) without play in the longitudinal direction ( 42 ) and transverse thereto, but exchangeably in round file receivers ( 21 , 22 , 29 , 30 ), two mutually parallel file faces ( 39 , 39 ′) provided on one flat file ( 16 ), which is held without play in the longitudinal direction ( 42 ) and transverse thereto, but exchangeably in flat file receivers ( 23 , 31 ), wherein the pairs of the guide rods ( 19 , 19 ′, 20 , 20 ′) and the respectively associated round files ( 14 , 15 ) and the file faces ( 39 , 39 ′) are rotationally symmetrically arranged with respect to the longitudinal axis ( 42 ).