| 摘要 |
The invention relates to a grubber with a hollow tine of low weight, higher flexibility and vibration as well as a lower requirement for pulling force during ground-working. The tine (1) shifts aside from obstacles on the ground, in that it is arranged pivotably about an axis (5). For this purpose, bearing journals (4) having a preferably conical contact surface (7) engage frictionally in the tine wall. In the working position, the tine (1) is in contact with a pin (8) and is fixed by a safety bolt (9) which breaks under overload. The safety bolt (9) is connected to the tine (1) via a spring piece (16) which allows some tine movement and which moves the tine (1) back into its working position after pivoting. This can also take place by means of a prestressed spring (18) which allows the tine to move and therefore to pass obstacles on the ground and which moves the tine back into its working position after the latter has passed the obstacle on the ground. <IMAGE> |
