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2. 发明授权

US4717794A Interlock switch 失效
标题翻译：联锁开关
公开(公告)号：US4717794A
公开(公告)日：1988-01-05
申请号：US891949
申请日：1986-08-01
申请人： Donald C. Paul , Dennis R. Cakora
发明人： Donald C. Paul , Dennis R. Cakora
IPC分类号： H01H3/00 , H01H9/22 , H05B6/76 , H01H9/20
CPC分类号： H05B6/6417 , H01H3/001 , H01H9/226 , Y10S292/67 , Y10S292/69
摘要： A switch mechanism for controlling circuits such as in a microwave oven including a housing with a removable cover and a latch member and plunger member movable between a first position wherein the microwave oven door is closed and a second position, with the primary microwave circuits closed in said first position. Contact arms which all extend in one direction toward the latch member and plunger, a catch for holding the door closed, a slide for operating the primary switch means, and a cam operated by the plunger for operating switch means, all are slidably removable from the housing in a lateral direction. The switch sequence is arranged so that one set of primary contacts open after the other, and the structure is arranged so that if the slide for operating the switch means sticks, the movement of the plunger to the second position will insure that the circuit containing the primary switch means is opened.
摘要翻译：一种用于控制诸如微波炉中的电路的开关机构，所述微波炉包括具有可拆卸盖的壳体和闩锁构件以及可在微波炉门关闭的第一位置和第二位置之间移动的柱塞构件，主微波回路闭合说第一名接触臂在一个方向上朝向闩锁构件和柱塞延伸，用于保持门关闭的卡扣，用于操作主开关装置的滑块和用于操作开关装置的柱塞操作的凸轮，全部可滑动地从沿横向方向。开关序列被布置成使得一组主触头彼此打开，并且结构被布置成使得如果用于操作开关装置的滑块被粘贴，则柱塞到第二位置的运动将确保包含主开关装置打开。

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