Damping and drilling machine including such a damping device

Details Damping and drilling machine including such a damping device Damping and drilling machine including such a damping device

2011-06-14

2011-06-14

Rada, Rinaldi I (Department: 3721)

Tool driving or impacting

Impacting devices

With impact cushioning means

C173S200000

Reexamination Certificate

active

07958947

ABSTRACT:
A damping device for inserting into a housing of an impulse producing drill machine, for damping Shockwave reflexes from a drill string connected to the drilling machine, is distinguished in that a first damping piston (7) for direct or indirect action against the drill string and for applying a pressure in the direction of the drill string an a second damping piston (9) for applying pressure in the direction against the drill string against a fixed stop (11) arranged in the housing, wherein the first (7) and the second damping piston (9) are arranged to co-operate for joint damping action with a drill bushing or shank adapter in a certain relative position. The invention also concerns a drilling machine.

REFERENCES:
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patent: 0856637 (1998-08-01), None
patent: 2004 4060617 (2004-07-01), None

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