AUTOMATIC STEERING CONTROL DEVICE

Japanese Patent JP2018097621

A

PROBLEM TO BE SOLVED: To provide a work vehicle capable of preventing a reference position of straight traveling from being acquired by an operational error and suppressing an increase in the number of components.SOLUTION: The reference position is composed of at least two places which are a first reference position A that is acquired by a reference position acquisition member at one point of a firm field, and a second reference position B that is acquired by the reference position operation member at the other point of the firm field, a distance detection member for detecting a moving distance of a traveling vehicle body 2 is provided, and a control device 100 acquires the first reference position A when the reference position operation member is operated in a state where the first reference position A is not acquired, and acquires the second reference position B when the first reference position A is acquired and when the reference position operation member is operated in a state where the distance detection member detects movement of the traveling vehicle body 2 of a predetermined distance or more.SELECTED DRAWING: Figure 9

YOSHIDA TOYOORI
ARAKANE HIROMI
OKAMURA NOBUYUKI
FUNAYAMA MASAYUKI
ONO HIROYOSHI
KAMIYA HISASHI
OSANO HIKARI
HOTTA NAOKI
HIDA SHUHEI
IZUMI MITSUTAKA
KAWAKAMI SHUHEI

JP2016241727A

June 21, 2018

December 13, 2016

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ISEKI AGRICULT MACH
TOKYO KEIKI INC

G05D1/02; A01B69/00; B62D6/00

JP2008067617A	2008-03-27
JP2016106608A	2016-06-20
JP2015221009A	2015-12-10
JPS62296805A	1987-12-24
JP2001042936A	2001-02-16

US4558760A

1985-12-17

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