| 摘要 |
PURPOSE:To make the discharge amount of a granulated body constant without reference to the operation speed of a metering lever, by inhibiting a granulated-body intake shutter and outlet shutter from being open at the same time. CONSTITUTION:Granulated-body intake shutter 1 and outlet shutter 2 are provided at the upper and lower parts of metering container 6 respectively, and solenoid 10 and metering lever 3 are used as an opening-shutting means. In this constitution, pressing lever 3 down closes the contact of switch 7 and shutter 1 is closed by being drawn by solenoid 10. When lever 3 is further depressed, force is applied to point P and shutter 2 is opened to discharge the granulated body. With lever 3 returned, shutter 2 is closed by a spring and then the contact of switch 7 is opened to open shutter 1, holding it in readiness for the following metering operation. Therefore, both the shutters never open at the same time and a difference in discharged amount due to a difference in operation speed of lever 3 can be eliminated. |
