Patent ID: 6614364
Filing Date: 2003-09-02
Classification: H01H

Abstract:
A rubber membrane used in a computer keyboard, the compute keyboard having a base plate and a plurality of key mechanisms up-and-down movably connected to the base plate, the base plate having a base stand and membrane circuit board installed on the base stand, the membrane circuit board having a plurality of pressure sensors for generating key-pressing signals, wherein each of the key mechanisms is positioned above one of the pressure sore; the rubber membrane comprising:a connecting membrane; a plurality of upwardly protruding rubber domes removably connected to the connecting membrane and each of the rubber domes corresponding to one of the pressure sensors of the membrane circuit board for upwardly supporting the key mechanism located therein; and a tearing line between each of the rubber domes and the connecting membrane, the rubber domes of the rubber membrane capable of being retained on the membrane circuit board when the connecting membrane is torn away along each of the tearing lines; wherein the rubber domes are capable of being glued to the base plate, and the connecting membrane of the rubber membrane is capable of being torn away such that the plurality of the rubber domes are retained on the pressure sensors of the membrane circuit board.