Patent ID: 8769824

Claim:
Animal shearing machine comprising: a housing, a shearing head held on the housing, and a drive unit arranged in the housing, wherein: the drive unit comprises an electric motor with a shaft and a reduction gear coupled to the shaft of the drive motor and having a driven shaft, the shearing head has a stationary shearing blade and a shearing blade drivable for movement relative to the stationary shearing blade, the driven shaft of the reduction gear is coupled to the drivable shearing blade, the reduction gear is a planetary gear and the driven shaft of the reduction gear is arranged parallel to the shaft of the electric motor, the drivable shearing blade is drivable oscillatingly and the driven shaft of the planetary gear is coupled to the drivable shearing blade via an eccentric cam and an oscillating lever, the oscillating lever has a front end coupled to the driveable shearing blade and a rear end comprising a sliding element, the oscillating lever is manufactured as a sintered metal part, the sliding element is designed as a groove extending at right angles to the driven shaft of the planetary gear and parallel to an axis of oscillation of the oscillating lever, and the groove has groove walls with convexly curved semi-cylindrical surfaces, each surface being in contact with the eccentric cam only at one point.