INTEGRAL TYPE KEY TOP, AND KEY INPUT DEVICE AND COMPUTER USING IT

PROBLEM TO BE SOLVED: To provide an integral type key top of a thin walled hinge type where the strength, durability, operating performance and other requirements of each hinge part is optimally designed, and whose manufacture and assembly are facilitated, and also provided a key input device and a computer both of which employ the integral type key top. SOLUTION: In an integral type key top which comprises a plurality of key-tops 11 integrally formed with the frame part 12 of its perfiphery, the neighborhoods of both the ends of the specified side of each key top 11, are connected therewith in such a way that they can be displaced with respect to the frame part 12 by way of each hinge part 15 that is extended roughly in a straight line shape the width and thickness of which are specified, and the aforesaid key tops 11, the hinge parts 15 and the frame part 12, are made out of plastic material so as to be integrally formed together. Besides, as for the thickness t (mm) and the sum of widths w (mm) of the hinge parts 15 in a range of 0.25