Earth working – Draft – pitch or ground level responsive depth control
Patent
1982-09-27
1985-04-02
Stouffer, Richard T.
Earth working
Draft, pitch or ground level responsive depth control
172 7, A01B 63111
Patent
active
045081786
ABSTRACT:
A plow beam 4 is coupled to a tractor chassis 1 by a three-point linkage having a top link 9 and two bottom links 3. The top link 9 is a double acting control ram 23 which has hydraulic couplings 26,28,25 and 27 which cross-couple the control ram 23 to a double acting sensor ram 21 so that expansion of one ram produces contraction of the other. The sensor ram 21 is coupled between a pivot 17 at the head of the lift rod 18 of a conventional lift mechanism for the plow, and a pivot 22 on the tractor chassis. Movement of the lift rod 18 due to height variation of the plow beam 4 actuates the sensor ram 21 to vary the length of the top link 9, so as to vary the pitch attitude of the plow. Good land profile following is achieved by a high rate of change of pitch at normal working depth. A lower rate of change is achieved as the plow is raised out of work.
REFERENCES:
patent: 2755721 (1956-07-01), Rusconi
patent: 2832276 (1958-04-01), Heitshu
patent: 2887165 (1959-05-01), Heitshu et al.
patent: 2887166 (1959-05-01), Vogelaar
patent: 2887167 (1959-05-01), Heitshu et al.
patent: 3517943 (1970-06-01), Bunting et al.
patent: 3583494 (1971-06-01), Thompson et al.
patent: 3670822 (1972-06-01), Reinhardt
patent: 4393942 (1983-07-01), Mijot et al.
Cowell Peter A.
Herbert Paul F.
LandOfFree
Tractor linkage with pitch altitude control connected to sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tractor linkage with pitch altitude control connected to sensor , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tractor linkage with pitch altitude control connected to sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1086891