A - Human Necessities – 01 – B
Patent
A - Human Necessities
01
B
97/39
A01B 59/042 (2006.01) A01B 23/04 (2006.01) A01B 63/22 (2006.01)
Patent
CA 1081022
IMPLEMENT WITH COMPENSATION FOR TERRAIN IRREGULARITIES ABSTRACT OF THE DISCLOSURE An agricultural implement such as a disc or treader is provided with a counterpoise connec- tion between the frame of the implement and the tongue for holding the tongue in a normal operative position. The counterpoise employs a spring-loaded compensator link of normally fixed length which prevents relative movement of the tongue and frame under the reaction forces against the tillage tools produced by the resistance of the soil, but the springs permit the length of the link to change to allow the tongue to self-adjust in response to the higher forces against the tongue encountered when uneven terrain is traversed. The design provides for the use of a selected number of springs in a symmetrical cluster with each spring being employed in both the extension and shortening of the link. The illustrated embodiment is a double offset disc wherein the front gangs of discs cut a furrow in the soil in which the center transport wheels of the im- plement are forced to run. These support wheels are variable in angular displacement about a rockshaft so that the wheels may be independently adjusted to a lower running level than the outside transport wheels to compensate for the furrow and maintain the frame in a stable transverse attitude.
280815
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