Title:
WORKING VEHICLE
Document Type and Number:
Japanese Patent JP2020142603
Kind Code:
A
Abstract:
To provide a working vehicle a travelling speed control device of which can uniform the highest vehicle speeds of a plurality of working vehicles.SOLUTION: A working vehicle includes: a hydraulic transmission 2; a cylinder 3 changing the output rotational speed of the hydraulic transmission according to a flow rate of oil; and an electromagnetic valve 5 changing the flow rate of oil to the cylinder on the basis of the operation of a shift lever. The working vehicle is provided with a control device for increasing an aperture of the electromagnetic valve to increase the vehicle speed when the shift lever is operated to the speed increase side, and gradually reducing the aperture of the electromagnetic valve to converge the vehicle speed to a set speed when the vehicle speed exceeds a set speed. The vehicle is also provided with a highest vehicle speed operation tool setting an upper limit aperture of the electromagnetic valve.SELECTED DRAWING: Figure 5
Inventors:
MURASE TAKAHITO
UEJI YOSHITAKA
NISHIYAMA YOHEI
MURAMOTO KYOHEI
IHARA YASUSHI
UEJI YOSHITAKA
NISHIYAMA YOHEI
MURAMOTO KYOHEI
IHARA YASUSHI
Application Number:
JP2019040053A
Publication Date:
September 10, 2020
Filing Date:
March 05, 2019
Export Citation:
Assignee:
ISEKI AGRICULT MACH
International Classes:
B60K17/10; A01D69/00; A01D69/03; B60K20/00; B60K20/02; F16H61/4035