AUTOMATIC LEVEE-MATCHING APPARATUS OF TRACTION IMPLEMENT EQUIPPED WITH MEANS FOR ALARMING ABNORMALITY

摘要

PROBLEM TO BE SOLVED: To provide an automatic levee-matching apparatus for sensing a trouble due to error movement of a levee-matching sensor and alarming the trouble to a worker. SOLUTION: The automatic levee-matching apparatus of a traction implement is equipped with a hydraulic cylinder installed between a traction hitch and a frame of the implement and the levee-matching sensor of the implement and controls a traction angle of the traction hitch to the implement by rotating the traction hitch to left and right by the hydraulic cylinder operating with signals of the levee-matching sensor. In the automatic levee-matching apparatus, an abnormality-sensing switch sensing the traction hitch rotated beyond a hitch rotation range by the previously set levee-matching signal of the levee-matching sensor and recognizing error movement of the implement by the levee-matching sensor is installed and an alarm means which operates by the abnormality- sensing signal is installed. The abnormality-sensing switch is located at left and right positions of supporting points of a frame to which the traction hitch is pivoted and attached to a position exceeding a rotation range of the traction hitch by an usual levee-matching signals of the levee-matching sensor. COPYRIGHT: (C)2004,JPO