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    • 3. 发明授权
    • Driving shield
    • 驾驶盾牌
    • US4368924A
    • 1983-01-18
    • US256813
    • 1981-04-23
    • Manfred Nussbaumer
    • Manfred Nussbaumer
    • E21D9/06E21D9/08E21D9/13
    • E21D9/13E21D9/0664E21D9/0875
    • 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.
    • 具有屏蔽壳和用于限定工作室的横向壁的驱动屏蔽件,以及可枢转地支承在横向壁上的移除臂。 移除臂具有用于挖掘或移除也限定工作室的面壁的移除工具。 提供压力介质供应以在工作室中获得支撑压力。 通过基本上沿屏蔽壳的底部布置的排放导管去除远离面壁的材料。 工作或材料去除臂被轴颈安装在气动压力管道的横向壁上,压力介质供应体现为气动导管。 密封介质施加装置可与工作臂可移动地联接,并且装置的输送喷嘴在移除工具的自由端处被引导到紧邻环境。