| 摘要 |
PURPOSE:To enable to accurately detect the weight of food to be cooked by heat, by providing a weighing mechanism which weighs the weight of food to be heated by the number of vibration of a food-pan mount, or of an elastic body, as well as to provide a function which does not respond to a faint vibration in the mechanism by setting a specified threshold value to the width of vibration in it. CONSTITUTION:The weight of food to be cooked by heat is detected by the number of vibration of an elastic body, which holds a food-pan mount and of which number of vibration changes according to the weight of food. In this case, a weight detecting means is constitited so as not to respond to the faint vibration of a food-pan mount when the width of vibration is below a predetermined value. An actuator spling 16 depresses a magnet mounted plate 18 fitted to a motor 6, when a door 1 is opened. Next, a food to be heated is laid on a rotary food pan 5. The actuator spring 16 is returned to its initial state in a moment, as soon as the door 1 is closed, and a Roberval mechanism starts vibrating. The heavy weight of food displaces the free end of a Roberval mechanism downward, and the distance between the free end and a stopper plate 19 is narrowed, so that a vibrating zone is limited. |
