| 摘要 |
PROBLEM TO BE SOLVED: To provide a charged grain amount detecting device for a grain storing chamber capable of detecting abnormality in a detecting state to keep accuracy in detecting the amount of charged grain. SOLUTION: This charged grain amount detecting device for a grain storage chamber comprises a wire rope 21r hanging and supporting a weight 21w, a take-up drum 22, and a rotation counting means 22s, and further comprises a control processing portion for calculating the amount of charged grain based on a counting signal of the number of times of rotations of the take-up drum 22 necessary for the weight 21w to move between a prescribed reference position of the weight 21w and a grain charging face, and a reference position sensor 24s for detecting the arrival of the weight 21w at the prescribed reference position by taking up the wire rope 21r. The control processing is constituted to allow the take-up drum 22 to perform take-up motion in starting the motion for detecting the amount of charged grain, and to determine the abnormality when a detection signal of the reference position sensor 24s does not exist within a prescribed counting range from the start of take-up. COPYRIGHT: (C)2008,JPO&INPIT
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