RETRACTABLE GROUND WORKING DEVICE

摘要

A ground working device formed of a frame having a lower surface, and plur al individually retractable teeth secured to the frame and extending away from the surface in a ground contacting array. Teeth for the ground working device are formed as part of a retractable tooth assembly. A retractable tooth assembly preferably comprise s a tooth carrier on one end of which a tooth is slidably mounted, and on the other end of whi ch is mounted a tooth position fixative, with a position adjustable rigid link connecting th e tooth position fixative and the tooth. The retractable tooth assembly preferably extends through the frame from a first side to a second side, the retractable tooth assembly being secured to the frame on the first side and the tooth forming a working end on the second side.