| 摘要 |
The purpose of the present invention is to rapidly discharge a viscous fluid when drive is initiated, continue discharging the viscous fluid at a constant flow rate and rapidly stop the discharge. Provided is a discharge device (1) for discharging the viscous fluid, which fills the inside of a cartridge (10), from a nozzle (11) provided on a container by pressing force of a piston shaft (9), wherein the device is provided with a control unit (3) that, in a first-period after initiating drive of the piston shaft (9), moves the piston shaft (9) in the discharge direction for the viscous fluid at a first speed, and in a second period after completion of the first period, moves the piston shaft (9) in the discharge direction for the viscous fluid at a second speed slower than the first speed. In addition, the device may be provided with a control unit (3) that, in a third period after completion of the second period for moving the piston shaft (9) at the second speed, moves the piston shaft (9) in the reverse direction of the discharge direction for the viscous fluid at a third speed faster than the second speed for the purpose of rapidly stopping the discharge. |
