Patent ID: 8495805

Claim:
A device for needling a fibrous web, said device comprising: at least one driven 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 crank mechanism drive for moving the beam carrier in an oscillating manner, the crank mechanism drive comprising at least two crank drives having two driven crankshafts and a phase-adjusting device for the phase adjustment of the two crankshafts; and a guiding device acting on the beam carrier for guiding the needle beam during the oscillating movement, wherein the guiding device comprises a steering rod, one end of which is connected to the beam carrier by means of a swivel joint and the other end of which is coupled to a steering transmission by means of a second swivel joint, wherein the steering transmission comprises a plurality of transmission elements for guiding the steering rod, which transmission elements are held on a machine frame at least by means of a frame-rotary bearing, and wherein a transmission element is formed as a rocker arm, the central portion of which is held on the machine frame by means of a rocker bearing and the ends of which are connected to the steering rod and the connecting rod respectively, the connecting rod being coupled to the frame rotary bearing.