WORK VEHICLE

WIPO Patent Application WO/2021/054390

A1

According to a work situation, a work device (2) can be easily raised and lowered during work performed by the work device (2), and the work before the raising or lowering can be easily resumed and the work restarted. A work vehicle (1) comprises a body (3), a raising/lowering device (8) provided to the body (3), a first setting member (71) that sets a reference position (P1) along the height direction of the work device (2) linked to the raising/lowering device (8), a raising/lowering operation member (51) that operates the raising and lowering of the raising/lowering device (8), a first raising/lowering control unit (40A) that performs reference raising/lowering control for raising/lowering the raising/lowering device (8) so that the work device (2) comes to be in the reference position (P1), and a second raising/lowering control unit (40B) that stops the reference raising/lowering control and raises or lowers the raising/lowering device (8) in accordance with the operation of the raising/lowering operation member (51) when the raising/lowering operation member has been operated during work. When the operation of the raising/lowering operation member (51) is released after the reference raising/lowering control has been stopped, the first raising/lowering control unit (40A) performs control for returning the raising/lowering device (8) to a position corresponding to the reference position (P1).

GONO TSUYOSHI (JP)
TAKEOKA SUSUMU (JP)
TSUJI TOSHIYA (JP)
FUJIMOTO KAZUTAKA (JP)
TAKAHASHI KEIJI (JP)
YAMADA SHINYA (JP)

PCT/JP2020/035233

March 25, 2021

September 17, 2020

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KUBOTA KK (JP)

A01B63/10; A01B63/114

JP2006345769A	2006-12-28
JP2004159620A	2004-06-10
JP2000184804A	2000-07-04
JP2000184804A	2000-07-04

YASUDA & OKAMOTO PATENT ATTORNEYS (JP)

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