STEERING DEVICE OF WORKING VEHICLE AND METHOD OF CONTROLLING STEERING DEVICE OF WORKING VEHICLE

摘要

A steering device of a working vehicle includes a lever, a first switch, a lever support member, a second switch, and a control device. The first switch sets a steering signal to be in a valid/invalid state. The lever support member is provided so as to be able to flip up from a certain position of performing tilting operation. The second switch attains conduction when the lever support member is located at the certain position, and attains non-conduction in conjunction with the case where the lever support member is flipped up. The control device sets steering with use of the lever to be valid/invalid. The first switch has a plurality of terminals which respectively attain conduction of a steering signal in accordance with a setting of a valid state and an invalid state and are electrically connected to the control device in parallel with the second switch.

主权项

1. A steering device of a working vehicle, comprising:
a lever which performs tilting operation for steering; a first switch for setting a steering signal from the lever to be in a valid/invalid state; a lever support member which is provided so as to be able to flip up from a certain position of performing tilting operation with use of the lever and supports the lever; a second switch which attains conduction when the lever support member is located at the certain position, and attains non-conduction in conjunction with a case where the lever support member is flipped up from the certain position; and a control device for setting steering with use of the lever to be valid/invalid, wherein the first switch having a plurality of terminals which attain conduction of a steering signal from the lever in accordance with setting of a valid state and an invalid state and are electrically connected to the control device in parallel with the second switch, and the control device determines an abnormal state in accordance with an input order of signals inputted based on the first and second switches.