公开(公告)号：US5488213A

公开(公告)日：1996-01-30

申请号：US232205

申请日：1994-06-15

申请人： Jorg Dittrich

发明人： Jorg Dittrich

IPC分类号： H01H13/52 ,  H01H1/26 ,  H01H1/58 ,  H01H13/36 ,  H01H15/10 ,  H01H3/42

CPC分类号： H01H15/102 ,  H01H1/26 ,  H01H13/36 ,  H01H1/5805

摘要： A key switch which is particularly suitable for low profile keyboards includes a plunger whose contacting movement is converted by means of trigger cams into a movement perpendicularly to the plunger movement for switching a contactor which is movable relative to a stationary contact element, the contactor being formed as annular sheet metal part which is elongate in a direction normal to the switching movement and due to its length can accommodate relatively high stress without material fatigue.

摘要翻译： PCT No.PCT / EP92 / 02205 Sec。 371日期：1994年6月15日 102（e）日期1994年6月15日PCT提交1992年9月23日PCT公布。 公开号WO93 / 10546 日期：1993年5月27日。特别适用于薄型键盘的钥匙开关包括一个柱塞，其接触运动通过扳机凸轮转换成垂直于柱塞运动的运动，用于切换可相对于固定触头移动的接触器 元件，接触器形成为在垂直于切换运动的方向上延伸并且由于其长度的环形金属板部件可以容纳相对高的应力而没有材料疲劳。

公开(公告)号：US5574446A

公开(公告)日：1996-11-12

申请号：US397477

申请日：1995-03-02

申请人： Jorg Dittrich ,  Gunter Greiner ,  Karl-Heinz Muller ,  Klaus Schuster ,  Gunter Murmann ,  Kurt Michel

发明人： Jorg Dittrich ,  Gunter Greiner ,  Karl-Heinz Muller ,  Klaus Schuster ,  Gunter Murmann ,  Kurt Michel

IPC分类号： H01H13/705 ,  H03K17/94 ,  H03M11/100

CPC分类号： H01H13/705 ,  H01H2217/028 ,  H01H2223/008

摘要： In a keyboard housing a housing top with a key pad and a housing bottom with support legs wherein the housing includes a support mat and a multi-layer contact foil set arranged underneath the key pad to be actuated thereby, a metal plate is embedded in a recess formed in the housing bottom below the contact foil set so as to increase weight and rigidity of the housing without the need for special molded housing reinforcement structures, the housing bottom, however, having U-shaped reinforcement web structures with bearing studs at their base areas near the housing bottom and housing legs with bearing holes receiving the bearing studs so as to be pivotally supported thereby, the housing legs having locking grooves and the housing bottom having, between the web structures, engagement tongues with locking ribs for engagement with the locking grooves in the housing legs.

摘要翻译： 在一个键盘中，一个带有键盘的外壳顶部和一个具有支撑腿的壳体底部，其中壳体包括一个支撑垫和一个布置在钥匙垫下方以被驱动的多层接触箔片组，金属板嵌在 在壳体底部形成的接触箔组件下方的凹部，以便增加壳体的重量和刚性，而不需要特殊的模制外壳加强结构，但是壳体底部具有在其底部具有支承螺柱的U形加强腹板结构 位于壳体底部附近的区域和具有承载孔的轴承孔的壳体腿部，以便由此枢转地支撑，壳体腿部具有锁定槽，并且壳体底部在腹板结构之间具有接合舌片，其具有用于与锁定 外壳腿部的凹槽。