A - Human Necessities – 01 – G
Patent
A - Human Necessities
01
G
A01G 23/091 (2006.01) A01G 23/08 (2006.01) B23D 47/12 (2006.01) B23D 59/00 (2006.01) B23Q 15/12 (2006.01)
Patent
CA 2181478
A system for adjusting the rotation speed of a cross-cutting saw of a tree handling machine, especially grapple harvester, which system is arranged to control a hydraulic cylinder (S) connected to the guide bar of the cross-cutting saw in a power transmitting way, to which hydraulic cylinder (S) there is connected a line (LS) communicating with the source (P) of pressure medium and having adjusting means (2) for adjusting the pressure of the cylinder (S). The system further comprises a computing means (8), and a rotation speed sensor {6) in conjunction with the cross-cutting saw for measuring the rotation speed of the cross-cutting saw, which rotation speed sensor (6) has a data transmitting connection (7) with the computing means (8), which is arranged to control the adjusting means (2) according to the measurement.
Carlsson Lennart
Tagmark Anders
Timperi Arto
Borden Ladner Gervais Llp
Carlsson Lennart
John Deere Forestry Oy
Tagmark Anders
Timperi Arto
LandOfFree
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