Percussion drill head
AssigneeTRACTO-TECHNIK GmbH & Co. KG
InventorFrank Hofmann
Life of this patent
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Abstract
The invention relates to a method for horizontal drilling with a percussion implement and a percussion head or percussion head element mounted in a movable manner relative to the percussion implement, the percussion impulse being transmitted in at least three steps.
Claims11
A method for horizontal drilling with a percussion implement and a percussion head or percussion head element mounted in an axially movable manner relative to the percussion implement, characterized in that the percussion impulse from the percussion implement into the surrounding soil is transmitted chronologically offset in at least three driving steps.
A device for horizontal drilling with a percussion implement and a percussion head, characterized in that the percussion head has at least three elements axially movable relative to one another.
A method for horizontal drilling with a percussion implement, a percussion piston being arranged within a body of the percussion implement, said percussion piston driving the device by transmitting percussion impulses onto a percussion head, said percussion head having at least three elements which are axially movable relative to one another and which are in contact with the surrounding soil, whereas the percussion impulses are transmitted chronologically offset into each of the elements.
A device for horizontal drilling with a percussion implement, a percussion piston being arranged within a body of the percussion implement, said percussion piston driving the device by transmitting percussion impulses onto a percussion head by hitting an element of the percussion head, said percussion head having at least three elements which are axially movable relative to one another and which are in contact with the surrounding soil, whereas the elements of the percussion head are arranged in a way that the percussion impulses are transmitted chronologically offset into the elements.
Dependencies are inferred from the claim text.