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) 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) for enabling a sidewise feeding of a catridge (10) for positioning the catridge between the breech bottom and the sealing sleeve (12) and toward the breech bottom (8) for securing the catridge between the breech bottom (8) and the sealing sleeve (12).
A power tool according to claim. 19, wherein an end surface (55) of the sealing sleeve (12) facing the breech bottom (8) has a circumferential nose-shaped projection (54, 54a) extending axially and radially inward.
Dependencies are inferred from the claim text.