WEIGHING DEVICE

PROBLEM TO BE SOLVED: To provide a weighing device capable of stably weighing an article, while cooling the inside of the device. SOLUTION: An intake fan 71 and an exhaust fan 75 are provided to form an outside air flow passage 55 for cooling the outside air flowing from the intake fan 71 to the exhaust fan 75, and a heat-generating body, such as a CPU 41, a graphic chip 45, a motor 35 and an element 61 of an electric power source 60 is arranged in the vicinity of the outside air flow passage 55. A load cell 11 is arranged in an upper side of the outside air flow passage 55, to separate the load cell 11 from the outside air flow passage 55. The temperature distribution on the load cell 11 is thereby kept substantially uniform, without being affected by heat from the heat-generating body and the cooling outside air. As a result, a weight value of the article is weighed with superior repetition reproducibility. COPYRIGHT: (C)2005,JPO&NCIPI