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1. 发明授权

US06683264B2 Low profile key switch structure 失效
标题翻译：低调键开关结构
公开(公告)号：US06683264B2
公开(公告)日：2004-01-27
申请号：US10408061
申请日：2003-04-04
申请人： Rikuro Obara , Masamitsu Osada , Masayuki Yoneyama
发明人： Rikuro Obara , Masamitsu Osada , Masayuki Yoneyama
IPC分类号： H01H1370
CPC分类号： H01H3/125
摘要： This low profile key switch structure provides a substantial reduction in the height or thickness of a key switch as compared to conventional and other low profile switches. Substantial height reduction in key switch structures allows the size and thickness of notebook-type personal computers and the like to be similarly reduced. One feature of this low profile key switch structure is that unlike in conventional key switch structures the membrane switch and frame structures do not over lap to cause unnecessary height in the structure. Another feature of this key switch structure is that the frames are formed to include the free motion range limiters. The frames are further formed so that they may be embedded in the reinforcing base plate in such a manner that allows the height of the key switch to be further reduced. This low profile key switch structure is also designed to eliminate unwanted key top movement that often occurs in conventional and other switches when the key top is depressed.
摘要翻译：与常规和其他低剖面开关相比，这种低轮廓键开关结构大大降低了钥匙开关的高度或厚度。钥匙开关结构的大幅降低，能够减小笔记本型个人电脑等的尺寸和厚度。这种低轮廓键开关结构的一个特征是，与传统的键开关结构不同，薄膜开关和框架结构不会超过搭接造成结构中不必要的高度。该键开关结构的另一特征在于，框架形成为包括自由运动范围限制器。框架进一步形成为使得它们可以以允许键开关的高度进一步减小的方式嵌入加强基板中。这种低轮廓键开关结构也被设计成消除了当按键顶部被按下时常规和其它开关中经常出现的不必要的键顶移动。

2. 发明授权

US5203448A Push button key switch 失效
标题翻译：按键开关
公开(公告)号：US5203448A
公开(公告)日：1993-04-20
申请号：US832929
申请日：1992-02-11
申请人： Masamitsu Osada , Nobuyuki Takahashi
发明人： Masamitsu Osada , Nobuyuki Takahashi
IPC分类号： H01H3/12 , H01H13/14 , H01H13/705
CPC分类号： H01H13/705 , H01H2215/002 , H01H2215/006 , H01H2221/028 , H01H2221/05 , H01H2227/036 , H01H2233/056
摘要： A push button key switch has an intermediate guide cylinder which is free to slide lengthwise inside a fixed guide cylinder and which at the same time holds the neck of a keytop while allowing it to slide freely lengthwise. The intermediate guide cylinder guides the keytop in its motion while the fixed guide cylinder guides the intermediate guide cylinder in its motion. Downward motion of the keytop causes the lower ends of the neck and the intermediate guide cylinder to collapse an elastic member which, in turn, then activates an electrical contact mechanism.
摘要翻译：按钮按钮开关具有中间导向筒，该中间导向筒在固定导向筒内部可自由地纵向滑动，并且同时保持键顶的颈部同时允许其纵向自由滑动。中间导向筒在其运动中引导键顶，同时固定导向筒在其运动中引导中间导向气缸。键顶的向下运动导致颈部和中间导向筒的下端折叠弹性构件，弹性构件然后启动电接触机构。

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