| 摘要 |
PROBLEM TO BE SOLVED: To provide a combination balance capable of suppressing a significant increase of a one-action cycle period and improving metering precision in the case of attaining a combination target weight by performing a combinational operation multiple times. SOLUTION: When one combinational operation process is started, an object to be metered is discharged from a combination-use hopper obtained by the combinational operation process as a discharging combination, and an object to be metered is supplied to the same combination-use hopper, and then timings are defined as reference timings t1, t2, t3 and the like which are set at an interval of a reference period being a half of a constant period (T) being predetermined as a period required for determining the weight of the object to be metered, and a period being (m+1) times the reference period is defined as a period required for performing a combinational discharging process one time, and a number m of reference timings among reference timings existing within respective periods of combinational discharging processes are defined as combinational start timings at which combinational operation processes are started, and one reference timing is defined as a combinational halt timing at which any combinational operation process is not started. COPYRIGHT: (C)2008,JPO&INPIT
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