| 摘要 |
In a soil cultivating implement comprising a hollow frame portion 1 that extends transversely to the intended direction of operative travel of the implement and supports a row of power-rotatable soil working members 2, a shield plate 11 is provided at least one end of the row. The maximum depth to which tines 5 of the members 2 can penetrate into the soil is adjustable and, in order to enable the plate 11 to maintain its substantially vertical dispostion for full co-operation with the neighbouring member 2 at any chosen working depth of the tines 5, a portion 14 of an arm 12 which carries said plate 11 can be entered through any appropriate pair of circular openings 17 in a front bracket 15 and a rear bracket that are both mounted on top of the hollow frame portion 1. The plate 11 can yield outwardly to release a momentarily trapped stone or the like before damage is caused by temporarily compressing the spring 24 of a resilient mechanism 18. Other constructions of the resilient mechanism are both described and illustrated. <IMAGE> |
