Key switch device with connecting rods and supporting plate molded separately through one plate material

Abstract

The invention relates to a key switch device with a connecting rod and a supporting plate molded separately through one plate material. The key switch device comprises a key cap (1), an elastic body (11), a thin film switch plate (12), a supporting plate (15) and a pair of connecting rod supports (16). The upper ends of the connecting rod supports (16) are in rotation connection or sliding connection with the key cap. The lower ends of the connecting rod supports (16) are in rotation connection or sliding connection with the supporting plate. The pair of connecting rod supports (16) forms a synchronous linkage supporting structure through force transmitted between the pair of connecting rod supports so as to guarantee that the key cap moves up and down in parallel with the supporting plate (15). The key switch device is characterized in that the same base plate material (17) forms an independent connecting rod plate material (18) and an independent supporting plate material (19) respectively through blanking and stamping. The connecting rod supports (16) are formed by stamping and molding the connecting rod plate material (18). The supporting plate (15) is formed by molding the independent supporting plate material (19). By means of the structure, material costs and process costs of the connecting rods can be saved, and production costs of a keyboard are greatly reduced.

Description

Technical field [0001] The present invention relates to a key switch device for performing keystroke operations, and more particularly to a key switch device incorporated in a keyboard as an input device of an electronic device. Background technique [0002] In thin, low-profile keyboards that are installed in portable electronic devices such as notebook computers or palmtop computers, it is required to reduce the height of the key switch device for typing operations, and to improve its operability, that is, to feel good—general In some cases, the key switch device used in a low-profile keyboard is provided with: a support plate (for example, a metal sheet or the lower bottom plate of the keyboard), a keycap arranged above the support plate, and a keycap that is interlocked and installed above the support plate. A pair of plastic link parts that guide and support the keycap in the vertical direction, corresponding to the switch mechanism of the contact part of the open and c...

AI Technical Summary

Problems solved by technology

At this stage, most of the high-strength plastics are used for production, which still cannot meet the rigidity requirements, and the cost of materials has been high

[0009]2. The plastic connecting rod structure is relatively small, and there is a hole shaft structure, and the production process is relatively complicated

If you want to further improve production efficiency, if you can produce 128 at a time, the design and manufacturing costs of the mold will increase significantly

[0011]4. The production of various components of the existing keyboard is relatively scattered, and the turnover cost is relatively high, which leads to low efficiency and high cost of the assembly process of the existing keyboard

[0012]5. The plastic connecting rod adopts a linkage support structure composed of holes and shafts, which makes the installation process of the plastic connecting rod complicated

In the current production stage, a pair of plastic connecting rods are generally formed into an X structure hinged by holes and shafts, and then the pair of connecting rods are installed on the support plate; the plastic connecting rods have a small structure and are easy to break, so automation cannot be realized at this stage Installation, installation costs have been high

[0013]6. The plastic connecting rod has a small structure and is prone to injection molding defects

In order to ensure product quality, full inspection is used in the production process of plastic connecting rods at this stage, and the cost of quality inspection is also very high

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