公开(公告)号：US5952731A

公开(公告)日：1999-09-14

申请号：US17282

申请日：1998-02-02

申请人： Will McPherson ,  Rutunj Rai ,  Robert D. Muller

发明人： Will McPherson ,  Rutunj Rai ,  Robert D. Muller

IPC分类号： G07C9/00 ,  H01H13/70 ,  B60R25/00

CPC分类号： H01H13/70 ,  G07C9/0069 ,  G07C9/00944 ,  H01H2223/002 ,  H01H2231/026

摘要： An improved switch for entering a key code includes a plurality of moving contact members all molded together into a single membrane. Each of the moving contact members moves within a hole in a housing. The housing is connected to a base with a snap connection. A circuit board and the membrane are sandwiched between the base and housing. A sealing lip on the membrane is deformed against the housing to provide a water tight seal around the circumference of the housing. Wires extend from the circuit board through holes in the base, and grommets surround the wire sealing the holes. LED's are provided on the circuit board to backlight the moving contact members.

摘要翻译： 用于输入钥匙代码的改进的开关包括多个一起模制成单个膜的移动接触件。 每个可移动接触构件在壳体中的孔内移动。 壳体通过卡扣连接连接到基座。 电路板和膜夹在基座和外壳之间。 膜上的密封唇相对于壳体变形，以围绕壳体的圆周提供防水密封。 导线从电路板延伸穿过基座上的孔，密封环围绕密封孔的线圈。 LED被提供在电路板上以背光移动的接触构件。