Patent ID: 8272111

Claim:
A device for needling a fibrous web, said device comprising: at least one needle beam, the lower side of which comprises a needle board having a plurality of needles; at least one movable beam carrier for holding the needle beam; a vertical drive connected to the beam carrier for driving the beam carrier in an oscillating manner in upward and downward movements; a guiding device for the guidance of the beam carrier, the guiding device comprising a first rocker, one end of which is held by a rotary bearing disposed on a machine frame, wherein an opposite end of the rocker and the beam carrier are connected by means of a coupling kinematic mechanism, wherein the coupling kinematic mechanism is formed by a steering rod and a frame lever, the steering rod being connected to the beam carrier with the aid of a swivel joint, and the frame lever being held on the machine frame with the aid of a rotary bearing, wherein the rotary bearing of the frame lever is formed as an eccentric bearing at the circumference of an eccentric shaft, which eccentric shaft can be optionally driven or locked into position by means of a kinetic facility, and wherein the frame lever forms a second rocker, and wherein the first rocker and the second rocker are each connected to the steering rod with the aid of respective swivel joints formed on the steering rod at a distance from each other.