Automatic steering controller for mobile agricultural machine

Abstract

Abstract PURPOSE: To enable to detect precisely an amount of deviation in left or right direction of body against predetermined straight running course by simple and inexpensive detecting device. CONSTITUTION: A movable member 8 with longitudinal width, displaceable in transversal direction by soil resistance caused by movement under a condition of contacting with ground or projecting into soil, is equipped to rearward lower surface of a tractor 3, and a sensor 9 is equipped to detect a transversal displacement of the movable mamber 8. Detected results are output into a steering mechanism 10 managing a steering of steering wheels 1 and a indicating mechanism 11 indicating condition of automatic steering control, thus the steering for running of the body is controlled automatically. In this case, the movable member 8 is cooperated with up- and-down motions of a ground operation device 4 and is constituted so as to be switched freely either to an operating position or non-operating position. When the tractor is steered by a handle 15, detecting operation by the sensor 9 is constituted so as to be cut off by a torque detecting sensor 16. COPYRIGHT: (C)1979,JPO&Japio

Inventors

• 👤 Katsumi Ito
• 👤 Yoshimi Oota
• 👤 Shigeaki Okuyama

Bibliographic Details