Patent ID: 6695567
Filing Date: 2004-02-24
Classification: B62D,B66F,F15B

Abstract:
An industrial vehicle provided with a hydraulic device that operates a carriage device and a traveling device by supplying the carriage device and the traveling device with hydraulic fluid, wherein the hydraulic device comprises:a first hydraulic pump for supplying the hydraulic fluid to the traveling device; a second hydraulic pump for supplying the hydraulic fluid to the carriage device, wherein the second hydraulic pump and the first hydraulic pump together form a tandem pump; a first motor for driving the first hydraulic pump and the second hydraulic pump; a third hydraulic pump for supplying the hydraulic fluid to the carriage device; and a second motor, wherein the second motor drives the third hydraulic pump only when the amount of hydraulic fluid to be supplied to the carriage device is required to be greater than a predetermined amount.