Driving shield
AssigneeEd. Zublin Aktiengesellschaft
InventorManfred Nussbaumer
Life of this patent
Estimating the term…
Abstract
A driving shield having a shield shell and a transverse wall for defining a work chamber, and a removal arm pivotally journalled on the transverse wall. The removal arm has a removal tool for mining or removing a face wall which also delimits the work chamber. A pressure medium supply is provided for attaining a support pressure in the work chamber. Material worked away from the face wall is removed by a discharge conduit arranged essentially along the bottom of the shield shell. The work or material-removing arm is journalled on the transverse wall in the pneumatic pressure duct, and the pressure medium supply is embodied as a pneumatic conduit. A sealing medium application device is movably coupled with the work arm, and the delivery nozzle of the device is directed upon the immediate surroundings at the free end of the removal tool.
Claims12
A driving shield for use in working or mining a face wall of a gallery, said driving shield comprising:
- a shield shell;
- a transverse wall arranged in said shield shell, said face wall, said shield shell, and said transverse wall delimiting a work chamber, said transverse wall being provided with a pneumatic pressure duct;
- a removal arm pivotably journalled on said transverse arm in said pressure duct;
- a removal tool provided on said removal arm for removing material from said face wall;
- a discharge conduit arranged in the bottom of said shield shell for the discharge from said work chamber of material removed from said face wall;
- a pneumatic conduit which passes through said transverse wall into said work chamber for producing a support pressure therein;
- a device for applying sealing medium, said device being movably coupled with said removal arm;
- and
- an application nozzle operatively associated with said application device for receiving sealing medium therefrom and effecting application thereof onto said face wall in the immediate vicinity of said removal tool.
Dependencies are inferred from the claim text.