| 摘要 |
The excavator tooth has a tooth holder (1) on one end of which a wedge-shaped tooth nose (3) is developed. The tooth nose (3) bears a wedge-shaped tooth cap (5) in which a wedge-shaped hollow space (24) is recessed. With the tooth cap (5) mounted, the hollow space (24) is pushed over the tooth nose (3), which thus supports the tooth cap (5). For a good support, the wedge surfaces (8, 9) of the tooth nose (3) have radii of curvature curved convexly perpendicular to the longitudinal axis (16) and continuously decreasing from the tooth edge (7) to the nose root (17). In corresponding manner, the wedge surfaces (25, 26) of the hollow space (24) have concavely curved radii of curvature which continuously decrease from the base (28) to the mouth (29) of the hollow space (24). In this way a large application surface of the tooth cap (5) on the tooth nose (3) is obtained. In order to secure the tooth flap (sic) (5), a locking pin is provided which passes through the holes (20, 34) in the tooth nose (3) and the side surfaces of the tooth cap (5) and holds the latter fast.
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