Scraper bar for a scraper blade of a road milling machine

21:

• The scraper bar of claim 20, wherein:
• at least some of the cutting elements include two of the cutting edges, the two cutting edges being at an angle to one another, and the two cutting edges each being at least partially set at an inclination angle not parallel to the longitudinal axis.

22:

• The scraper bar of claim 20, wherein:
• at least some of the cutting elements include two limbs at an angle to one another, each of the two limbs including one of the cutting edges at least partially set at an inclination angle not parallel to the longitudinal axis.

23:

• The scraper bar of claim 20, wherein:
• at least some of the cutting elements include a secondary cutting edge extending transversely to the cutting edge.

25:

• The scraper bar of claim 24, wherein:
• the cutting edge of each of the cutting elements extends to the abutment surfaces of the respective cutting element.

27:

• The scraper bar of claim 20, wherein:
• the plurality of cutting elements serially arranged along the longitudinal axis are arranged such that the cutting edges form a wave-shaped structure.

28:

• The scraper bar of claim 20, wherein:
• the plurality of cutting elements serially arranged along the longitudinal axis are arranged such that the cutting edges form a zigzag-shaped structure.

29:

• The scraper bar of claim 20, wherein:
• the plurality of cutting elements serially arranged along the longitudinal axis are arranged such that the cutting edges form a sawtooth-shaped structure.

30:

• The scraper bar of claim 20, wherein:
• the inclination angle of the cutting edges is in an angle range between 2 degrees and 28 degrees with respect to the longitudinal axis.

31:

• The scraper bar of claim 30, wherein:
• the angle range is between 10 degrees and 20 degrees.

33:

• The scraper bar of claim 32, wherein:
• the bottom surface of the carrier has one or more receptacles recessed into the bottom surface, and each of the one or more skid runners is at least partly received in a respective one of the receptacles.

34:

• The scraper bar of claim 32, wherein:
• the carrier is configured such that when the scraper bar is installed on a scraper blade of a milling machine, the bottom surface of the carrier is inclined rearwardly upward with respect to a horizontal line.

35:

• The scraper bar of claim 20, wherein:
• the carrier includes an extension projecting rearward beyond the rear-side installation surface, the extension including a support surface such that the rear-side installation surface and the support surface enclose an angle.

36:

• The scraper bar of claim 20, wherein:
• the cutting-element receptacle includes a plurality of elevations, and at least some of the cutting elements include a depression, each of the elevations engaging a respective one of the depressions.

37:

• The scraper bar of claim 36, wherein:
• the cutting-element receptacle is assembled from a plurality of sub-receptacles, each sub-receptacle including at least one of the elevations.

38:

• The scraper bar of claim 20, wherein:
• the cutting-element receptacle includes a plurality of depressions, and at least some of the cutting elements include an elevation, each of the elevations engaging a respective one of the depressions.

39:

• The scraper bar of claim 38, wherein:
• the cutting-element receptacle is assembled from a plurality of sub-receptacles, each sub-receptacle including at least one of the depressions.

41:

• The scraper bar of claim 20, wherein:
• the carrier has a width parallel to the longitudinal axis, a height perpendicular to the longitudinal axis, and a depth perpendicular to the width and the height, wherein the width is greater than the height and the width is greater than the depth.

42:

• The scraper bar of claim 20, wherein:
• the carrier includes receptacles defined through the rear-side installation surface for receiving fasteners for attaching the carrier to a scraper blade.

44:

• The scraper bar of claim 20, wherein:
• at least some of the cutting edges of the cutting elements lie in one plane.

45:

• The scraper bar of claim 20, wherein:
• at least some of the rake surfaces of the cutting elements are arranged parallel to one another.