Key structure of computer keyboard

Details Key structure of computer keyboard Key structure of computer keyboard

2006-05-16

2006-05-16

Friedhofer, Michael (Department: 2832)

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

C200S0050EA

Reexamination Certificate

active

07045722

ABSTRACT:
A key structure is provided. The present key structure includes a key cap, a scissor-type frame, an elastic contact body, a membrane circuit board, and a bottom board. A plurality of flanges is provided on the bottom of the elastic contact body, with the surface of the flange being formed as an embossed surface having a cross-striped structure. A print layer is provided on the area of the membrane circuit board corresponding to the flanges of the bottom of the elastic contact body, such that there is a height difference between the print layer and the membrane circuit board. The print layer is formed of a plurality of discontinuous printing portions between which a plurality of holes is formed. After the elastic contact body is bonded to the membrane circuit board by an adhesive, the press force of the elastic contact body caused by pressing the key can be released via the holes. The bonding area of the bottom of the elastic contact body is increased by the cross-striped structure of the embossed surface so as to enhance bonding between the elastic contact body and the membrane circuit board and prevent the adhesive from being extruded out from therebetween.

REFERENCES:
patent: 4170104 (1979-10-01), Yamagata
patent: 4501936 (1985-02-01), Morse
patent: 6259434 (2001-07-01), Tsai
patent: 6491456 (2002-12-01), Shih et al.
patent: 6664901 (2003-12-01), Yamada et al.
patent: 2002/0175063 (2002-11-01), Ito et al.
patent: 2004/0195081 (2004-10-01), Narusawa et al.
patent: 2005/0000789 (2005-01-01), Yoneyama

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