Explosive charge driven setting gun
AssigneeHilti Aktiengesellschaft
InventorElmar Maier
Life of this patent
Estimating the term…
Abstract
In an explosive charge driven setting gun a breech block is located in the rear of the gun housing and the gun barrel is axially displaceable within the gun housing. A firing projection is formed on the rear end of the barrel so that a propellant charge supported on the breech block can be fired by displacing the barrel rearwardly against the breech block. The displacement force can be provided by a spring which biases the barrel rearwardly. A latch can be mounted in the housing for securing the barrel in a forward position and when the latch is released, the barrel can be displaced rearwardly against the breech block.
Claims24
An explosive charge driven setting gun for firing an explosive charge and using force generated by the explosive charge for driving fastening elements and the like into a receiving material, comprising a housing having a bore extending in the firing direction of the gun, said bore having a rear end and a front end spaced in the firing direction from said rear end, a barrel axially displaceably mounted within the bore in said housing, said barrel having a forward end facing in the firing direction and a rearward end facing in the opposite direction, a breech block positioned in said housing at the rear end of said bore and in alignment with said barrel, said breech block arranged to support a propellent charge, wherein the improvement comprises means formed on the rearward end of said barrel for firing the propellent charge supported on said breech block when said barrel is displaced rearwardly against said breech block.
Dependencies are inferred from the claim text.