Patent ID: 6273623
Filing Date: 2001-08-14
Classification: G06F,H01H

Abstract:
A keyboard assembly comprising a keyboard hood, a plurality of key caps disposed on the keyboard hood, a circuit membrane actuated by the key caps, a rubber sheet disposed between the key caps and the circuit membrane, and a keyboard base fastened to the keyboard hood so as to enclose the rubber sheet and the circuit membrane therebetween, the keyboard assembly further comprising:a first slant wall formed on the keyboard hood;a second slant wall formed on the keyboard base and corresponding to the first slant wall to define a slot-like first receiving space between the first slant wall and the second slant wall; anda substantially vertically extending circumferential rubber sheet wall formed along a circumference of the rubber sheet, the circumferential rubber sheet wall being disposed in the first receiving space and pressed by both the first and the second slant walls so as to hold the circumferential rubber sheet wall in a substantially upright position and to form a watertight seal at the boundary of the rubber sheet.