Key switch device and keyboard device

Abstract

A key switching device consists of multiple control lever part locked on base plate with one end side to be rotated freely, fixing part supported and lifted freely to the base plate as well as locked with another end of control level part, switching element being set between the base plate and the fixing part as well as being lifted by following with the fixing part for carrying on switching action and control lever part rotary shaft being cross-disposed with rotary shaft of control lever part locking in piece. The key board for this key switching device in thin and miniaturized pattern is provided by the present invention.

Description

technical field [0001] The present invention relates to a key switch device with good performance, which is used in a keyboard device or an input switch device used in input and output devices such as word processors and personal computers, and a keyboard device provided with the key switch device. Background technique [0002] according to Figure 4 , Figure 5 A conventional X-type key switch device applied to a keyboard device will be described. The mounting member 31 made of a metal plate or the like has: a bottom wall 31a; cut off from the bottom wall 31a in a double-supported state, a plurality of relatively long support portions 31b formed in an orderly arrangement; and cut off from the bottom wall 31a in a cantilever state. , A plurality of semicircular-arc-shaped fixing portions 31c formed in a pair with the above-mentioned supporting portion 31b. Also, a flexible substrate (not shown) provided with a plurality of fixed contacts 32 is arranged on the upper surface...

AI Technical Summary

Problems solved by technology

But when Figure 4 , Figure 5 In the key switch device of the structure shown, since the rotation shaft 34d as the rotation center of the lever members 34, 35 is located at the longitudinal center of the lever members 34, 35, the rotation axis 34d is the center of the lever members 34, 35. The key top 36 is connected on the upper end side of the key switch, and the lower end side of the lever parts 34, 35 is connected on the mounting part 31 side, with the miniaturization and thinning of the key switch device as the goal, when the lever parts 34, 35 are shortened However, the control rod members 34, 35 have a limit length that can rotate smoothly, and there is a disadvantage that they cannot be further miniaturized and thinned.

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