Patent ID: 7422133

Claim:
Gas-operated fixing device comprising: a casing having an external front end and an external rear end; an internal combustion engine for driving fasteners arranged in the casing; a handle, the handle being fixed to the external rear end of casing so as to be immovable relative to the casing, and connected to the external front end of the casing so as to be able to be slidable relative to the casing along a drive axis of the fasteners, the casing and the handle of the device being fixed to each other by tenon and slot assemblies, and wherein the tenon and slot assemblies at the external rear end of the casing are configured so that relative movement between the tenons and the slots is prevented and wherein the tenon and slot assemblies at the external front end of the casing are dimensioned to permit relative movement between the tenon and slot in a direction parallel with the drive axis.