Abstract: A haymaking machine of the type having a pair of raking wheels rotatable about generally upright axes in the same sense or in opposite senses depending upon the type of haymaking operation involved. In order to provide a resilient characteristic to the prongs which is the same in both senses of rotation, each prong is mounted swingably on a pivot member whose bolt is connected to one end of a stack of spring-steel strips forming a torsion spring. The latter extends through a tube fixed to the frame of the wheel and is anchored to this tube by another sleeve whose angular position relative to the tube can be adjusted.
Type:
Grant
Filed:
July 17, 1981
Date of Patent:
October 4, 1983
Assignee:
Klockner-Humboldt-Deutz AG (Branch Establishment Fahr)