US 2006/0075978 A1Published application

Combustion-engined setting tool

AssigneeHilti Aktiengesellschaft

InventorsUlrich Schiestl, Ulrich Rosenbaum, Hans Gschwend

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Abstract

A combustion-engined setting tool for driving fastening elements such as nails, bolts, pins and the like in a constructional component, includes a combustion chamber (14) having an axially displaceable wall (14) displaceable over at least one guide (29) arranged in the combustion chamber (14) by a press-on element (30), a guide cylinder (12) adjoining the combustion chamber (14) and in which a setting piston (11) is displaceable for driving the fastening elements in the constructional component, and a lever drive (20) operatively connecting the press-on element (30) with the displaceable wall (17) for displacing the same in accordance with a transformation ratio between a press-on stroke and a displacement stroke of the displaceable wall (14).

Claims7

Dependent claims

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).

3 more elements

Dependencies are inferred from the claim text.