Explosion-operated power tool
AssigneeHilti Aktiengesellschaft
InventorsTilo Dittrich, Gerhard Ehmig, Thomas Sperrfechter
Life of this patent
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Abstract
An explosion-operated power tool including a housing (1) having a cylindrical cavity (5) and a piston chamber (2) for receiving a drive piston (3) and communicating with the cavity (5), a breech bottom (8) located opposite the cavity (5) and fixedly secured at a predetermined distance from the housing (1), and a sealing sleeve (12) located in the cavity (5) of the housing (1) and displaceable axially away from the breech bottom (8) and toward the breech bottom (8) for enabling, respectively, a sidewise feeding of a catridge (10) for positioning the catridge between the breech bottom and the sealing sleeve (12) and for securing the catridge between the breech bottom (8) and the sealing sleeve (12).
Claims22
An explosion-operated power tool, comprising:
- a housing (1) having a cylindrical cavity (5), a piston chamber (2) for receiving a drive piston (3), and a channel (7) for communicating the piston chamber (2) with the cavity (5);
- a breech bottom (8) located opposite the cavity (5) and fixedly secured relative to the housing (1) at a predetermined distance from the housing (1);
- and
- a sealing sleeve (12) located in the cavity (5) of the housing (1) and displaceable between a first position in which the sealing sleeve (12) is located axially away from the breech bottom (8) for enabling a sidewise feeding of a cartridge (10) for positioning the cartridge between the breech bottom and the sealing sleeve (12) and in which the sealing sleeve (12) blocks the communicating channel (7), and a second position in which the sealing sleeve (12) adjoins the breech bottom (8) for securing the cartridge between the breech bottom (8) and the sealing sleeve (12) and in which the sealing sleeve (12) does not block the communicating channel (7).
Dependencies are inferred from the claim text.