| 摘要 |
The unit comprises a first flat body of straight shape acting as a support 1, and a second flat body folded over at right angles acting as a tine 5, the concavity of which points towards the central zone of the support 1. The tine 5 comprises two arms 50, 51 of different lengths, the shorter 50 of which is intended to be fixed to one end of the support 1 so that the plane of symmetry of the tine 5 is inclined with respect to the axis of the support 1, forwards with respect to the direction of rotation of the support. The active part 51 of the tine 5 has an inverted triangular configuration with an isosceles trapezium-shaped cross-section, the small base of which points towards the outside of the support. The invention applies to the construction of rotary harrows. <IMAGE>
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