Bit holder for road milling machine, has support body comprising tilling side, which is turned toward projection and comprises bit retainer, and body surfaces diverging from projection side in direction to tilling side

摘要

The holder (20) has a support body (21) at which a plunging projection is directly or indirectly connected at a plunging projection side. The body has two erosion surfaces, which stay together at an angle. The body comprises a tilling side, which is turned toward the projection. The tilling side comprises a bit retainer (27) i.e. through-hole. The surfaces diverge from the projection side in a direction to the tilling side. A longitudinal axis of the projection and a middle longitudinal axis of prisms formed by the erosion surfaces have an angle at range between 100 and 130 degrees.