| 摘要 |
PROBLEM TO BE SOLVED: To detect a metal body included in a measuring object easily and highly accurately with a simple constitution. SOLUTION: An individual shoot 13 is installed respectively on a final-step memory hopper 9 of each channel. A metal detector 20 is installed oppositely to the conveyance face of the individual shoot 13. The metal detector 20 is journalled by a body part 15, and has a detection coil 21 for covering the individual shoot 13. The weighing object discharged from the memory hopper 9 passes through the metal detector 20 part at a low falling velocity, and existence of the inside metal body is detected. The individual shoot 13 is locked and held to the memory hopper 9 by a fastener 14, and can be dismounted easily from the detection coil 21 part by being taken out to the upside at the dismounting time.
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