Patent ID: 11926184
Assignee: KUBOTA CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 4:
5. The riding work vehicle of claim 4, wherein:
the vehicle height adjustment mechanism includes a communication oil passage which connects an oil chamber of the upper hydraulic cylinder to an oil chamber of the lower hydraulic cylinder;
the vehicle height adjustment mechanism is configured to be switchable between a sequential operation mode and a simultaneous operation mode;
when the communication oil passage has been switched to a closed state, the vehicle height adjustment mechanism, under the sequential operation mode, feeds work oil to the oil chamber of the upper hydraulic cylinder to expand this upper hydraulic cylinder and then switches the communication oil passage to an opened state to feed the work oil to the oil chamber of the lower hydraulic cylinder; and
when the communication oil passage has been switched to the opened state, the vehicle height adjustment mechanism, under the simultaneous operation mode, feeds the work oil simultaneously to the oil chamber of the upper hydraulic cylinder and the oil chamber of the lower hydraulic cylinder.