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    • 9. 发明授权
    • Self lubricating door key and door hook for high frequency heating
apparatus
    • 用于高频加热装置的自润滑门钥匙和门钩
    • US6043473A
    • 2000-03-28
    • US18
    • 1998-04-06
    • Mamoru IsogaiToshio Kai
    • Mamoru IsogaiToshio Kai
    • H05B6/76
    • H05B6/6417
    • A microwave oven comprises a heating compartment 3, a door 4 having a door key 6 for closing the front opening of the heating compartment 3, a hook spacer 13 manipulated by the door 4, a door hook 9 to be engaged with the door key 6, and switches 10, 11, 12 turned on or off by the door key 6 and hook spacer 13, wherein the door key 6 is made of a resin filled with at least one of acicular crystals of potassium titanate, calcium metasilicate, magnesium pyroborate, barium titanate, and zinc oxide of which Mohs's hardness is lower than that of glass fiber, with the diameter of acicular crystal being 0.1 .mu.m or more and 50 .mu.m or less, and the door hook 9 to be engaged with the door key 6 is made of a resin material filled with glass fiber, with the resin surface roughness of the door key 6 being smaller than the resin surface roughness of the door hook 9, thereby not required to apply grease on the sliding parts of the door key 6 and door hook 9.
    • PCT No.PCT / JP96 / 02035 Sec。 371日期:1998年4月6日 102(e)1998年4月6日PCT PCT 1996年7月19日PCT公布。 出版物WO97 / 05428 日期1997年2月13日微波炉包括加热室3,具有用于封闭加热室3的前开口的门钥匙6的门4,由门4操纵的钩隔离件13,待接合的门钩9 通过门钥匙6和开关10,11,12由门钥匙6和挂钩间隔件13打开或关闭,其中门钥匙6由填充有至少一种钛酸钾针状结晶的树脂,钙 偏硅酸镁,焦硼酸镁,钛酸钡和氧化钼,其莫氏硬度低于玻璃纤维的硬度,针状晶体的直径为0.1μm以上至50μm以下,门钩9要接合 门钥匙6由填充有玻璃纤维的树脂材料制成,门钥匙6的树脂表面粗糙度小于门钩9的树脂表面粗糙度,因此不需要在滑动部件上涂抹润滑脂 门钥匙6和门钩9。