| 摘要 |
PURPOSE:To simplify the structure of a switching device as well as to enhance safety thereof, by assembling a main cooking switch, a door sensing switch, and a cooking sensing switch altogether in one switching mechanism section. CONSTITUTION:When a door 1 is closed and the hook 6 of a door 1 pushes a connecting rod 11, a lever 12 is lowered, and a retainer plate 17 is losered as well to bring a key plate in such a state that it can be pushed by a cooking starting button 3. Then, when the cooking starting button 3 is pushed in, which the key plate 10 being pushed in at the same time, the pusher 19A of a cylinder device 19 which is fixed to the key plate 10 actuates a door sensing switch 14. When the key plate 10 is pushed in further, the projection 27 of a lever 12 drops into an opening 13 by a stroke, and a main cooking switch 9 is conducted. In this state, the key plate 10 still retains a stroke to be pushed-in further, and a cooking sensing switch 15 is finally actuated only when the key plate 10 is pushed-in furthermore. |
