Device for adjusting the cutting angle for rake blades of earthmovers

摘要

Provision is made for there always to be a fixed connection between rake blade and swivel arms with a predetermined cutting angle. For gradual changing of the cutting angle, the connecting elements are releasable and the rake blade can be adjusted via a circular-arc surface in an allocated mating surface of a receptacle at the swivel arms and can also be subsequently secured again via the connecting elements. Here, the centre of the circular-arc surfaces lies approximately in the area of the cutting edge of the rake blade.