| 摘要 |
PROBLEM TO BE SOLVED: To provide a weighing apparatus capable of ensuring stability of operation of a weigh scale and weighing the weight of a container arranged within a closed case and an object stored in the container. SOLUTION: In the weighing apparatus 100, inner magnets 71, 71 provided in a drum holding plate 70 and outer magnets 73, 73 provided in a movable base 320 are magnetically coupled to each other inside and outside the closed case 400 sandwiching a case ceiling wall 408. Thus, the weight of an overall supply drum 11 including a powder and granular material is transmitted from the inner magnets 71, 71 to the outer magnets 73, 73. The weigh scale 300 is arranged between the movable base 320 (lower horizontal board 322B) having the fixed outer magnets 73, 73 and a fixed base 310, thereby the change in the weight of the overall supply drum 11 applied to the outer magnets 73, 73, that is, the supply amount of the powder and granular material to a receiving container 130 can be weighed by the weigh scale 300. COPYRIGHT: (C)2010,JPO&INPIT
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