Patent ID: 7188590

Claim:
A combustion-engined setting tool for driving fastening elements in a constructional component, comprising: a combustion chamber ( 14 ) for combusting an oxidant-fuel gas mixture and having an axially displaceable wall ( 17 ) displaceable over at least one guide ( 29 ) arranged in the combustion chamber ( 14 ); a guide cylinder ( 12 ) adjoining the combustion chamber ( 14 ); a setting piston ( 11 ) displaceable in the guide cylinder ( 12 ) for driving the fastening elements in the constructional component; a press-on element ( 30 ) for displacing the displaceable wall ( 17 ) of the combustion chamber; and a lever drive ( 20 ) operatively connecting the press-on device ( 30 ) with the displaceable wall ( 17 ) of the combustion chamber ( 14 ) for displacing the displaceable wall ( 17 ) in accordance with a transformation ratio between a press-on stroke and a displacement stroke of the displaceable wall ( 17 ).