Title:
作業車
Document Type and Number:
Japanese Patent JP7001540
Kind Code:
B2
Abstract:
[Problem]To provide a work vehicle that alleviates a shock that may occur during a speed change by circumventing stalling of a motor caused by a speed increase in a speed change apparatus and also circumventing over-rotation of the motor caused by a speed decrease in the speed change apparatus.[Means for Solving the Problem]A work vehicle according to the present invention includes a rotationally driven motor; a traveling vehicle body on which the motor is mounted; a travel apparatus that is provided to the traveling vehicle body and is also driven by drive power from the motor; a work apparatus that performs work on a farm field; a speed change apparatus that changes the speed of drive power that is input from the motor and transmits the drive power; a speed change operation tool that includes a plurality of speed change stages and is also capable of speed change operation of the speed change apparatus by way of a human operation; a speed change controller that, when the number of speed change stages is changed over a plurality of stages based on human operation of the speed change operation tool, outputs to the speed change apparatus a speed change command for each predefined number of stages and is also capable of outputting the speed change command for each defined speed change interval; and an operation mechanism that enables adjustment of the speed change interval.
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Inventors:
Tetsuo Yamaguchi
Yoshihiko Kuroshita
Tojinji
Kono Tsuta
Shinji Ohara
Yoshihiko Kuroshita
Tojinji
Kono Tsuta
Shinji Ohara
Application Number:
JP2018096566A
Publication Date:
January 19, 2022
Filing Date:
May 18, 2018
Export Citation:
Assignee:
Kubota Corporation
International Classes:
F16H61/08; F16H59/02; F16H59/50; F16H59/52; F16H59/70; F16H61/16; F16H61/682
Domestic Patent References:
| JP2003314679A | ||||
| JP2005207603A | ||||
| JP8210495A |
Attorney, Agent or Firm:
Patent business corporation r&c