CN2412242Y - Computer keyboard character key device - Google Patents

Abstract

The utility model relates to a computer key, which makes it reliable. The key cap has one H-shaped pressing column with circular guide ribs on the four sides, one hollow seat with upper frame board and lower frame board, one hollow rectangular upper frame board, eight sets of guide ribs corresponding to the inner wall of the upper frame board, and one elastic key ring embedded inside the lower frame board. It is used for computers.

Description

computer keyboard word key device

The utility model relates to a computer keyboard word key structure.

Existing computer keys extend a post on the bottom surface of the key cap of a word key, and the post is slidably sleeved in a shaft hole of a positioning plate, and the bottom edge of the post is pushed against an elastic key ring, and the key cap is pressed to make the elastic key ring Press down on the circuit board to transmit the signal. When the point of force is pressed and deviates from the center of the keycap, the column will be deflected and locked in the shaft hole of the positioning plate. Patent Publication No. 370220 And the No. 194192 "keyboard button structure improvement" has improved some of the shortcomings of the above-mentioned known button structure, but, because of the need to install springs and spring caps, the structure is complicated, the cost is high and the assembly is difficult. No. 194192 Because of the single-point stress on the corner of the button, and the longer force arm at the opposite corner of the button, it is easy to cause uneven force on the button and the sliding and tilting of the keycap, which affects the button operation, which means that the reliability and operation convenience are poor. .

The purpose of the utility model is to provide a relatively convenient and reliable computer keyboard word key device.

The purpose of this utility model is achieved in that a computer keyboard word key device comprises: a keycap, a key base, an elastic key ring, a film circuit board and a bottom plate; it is characterized in that: the keycap is a word The key pressing element has an H-shaped pressing column on its bottom surface, and there are rounded guide ribs on the four sides of the pressing column, and another rounded guiding rib protrudes symmetrically and vertically from the outer end surface of the guiding rib, that is, the pressing column forms A total of eight sets of symmetrical guide ribs, two hook plates symmetrically formed on the bottom of the keycap; the key base is a hollow seat with an upper frame plate and a lower frame plate, and the upper frame plate is hollow and rectangular, and slides vertically up and down The eight sets of guide ribs slide vertically on the inner wall surface of the upper frame plate respectively. Two inner hooks are symmetrically protruded on the inner wall surface, and an elastic key ring is embedded in the lower frame plate; the elastic key ring is An elastic body in the shape of a hollow cone, the top of which is pushed against the bottom of the pressing column, and a column protrudes downward from the inside, and the column is connected to the film circuit board by touching the film circuit board. The film circuit board is assembled on the bottom plate, and the bottom plate is A shelf board supporting the key structure of the keyboard.

According to the above-mentioned design, the effect that the operation is more convenient and reliable has been reached according to the test.

Below by accompanying drawing, embodiment again illustrate.

Fig. 1 three-dimensional exploded schematic diagram of the utility model;

Fig. 2 is the bottom view of the keycap of the present utility model;

Fig. 3 is the top view of the utility model keycap;

Fig. 4 is a sectional view of the button of the utility model;

Fig. 5 The utility model shows a sectional view of the button when the keycap is pressed down;

Fig. 6 The utility model shows a cross-sectional view of the button under the state of pressing and conducting the keycap;

Fig. 7 is a sectional view taken along line X-X of Fig. 6 .

As shown in Figure 1-7: the word key device of computer keyboard of the present utility model, it comprises: a keycap 10, a key base 20, an elastic key ring 30, a film circuit board 40 and a base plate 50; It is characterized in that: This key cap 10 is a word key pressing element, and its bottom surface has an H-shaped pressing post 12, and the four side edges of the pressing post 12 have guide ribs 13 with rounded corners. A rounded guide rib 14, that is, the pressing column 12 forms a total of eight sets of symmetrical guide ribs 13, 14, and the bottom surface of the keycap 10 is symmetrically formed with two hook plates 17; The hollow seat body of the frame plate 26, while the upper frame plate 22 is a hollow rectangle, and accommodates the pressing column 12 vertically sliding up and down, and the eight sets of guide ribs 13, 14 are respectively vertically corresponding to the inner wall surface 23 of the upper frame plate 2. Two inner hooks 24 are symmetrically protruded on the inner wall surface 23, and an elastic key ring 30 is embedded in the lower frame plate 26; On the bottom surface of the pressing column 12, there is a column rod 34 protruding downward inside it. The column rod 34 touches and conducts the thin film circuit board 40. The thin film circuit board 40 is assembled on the bottom plate 50, which is a frame plate supporting the keyboard key structure. Wherein, the two hook plates 17 are symmetrically arranged on the inner side of the pressing plate 12 , and outer hooks 18 protrude from the bottom edges of the two hook plates 17 respectively. Wherein, the two inner hooks 24 on the inner wall surface 23 of the upper frame plate 22 correspond to the two outer hooks 18 of the keycap 10 that are engaged and locked. The keycap 10 can slide smoothly in the key base 20 .

And the symmetrical arrangement of guide ribs 13,14 makes keycap 10 evenly stressed when quickly pressed, and slides up and down firmly, overcoming the shortcoming of slanting; The ground buckle stops and locates, which further ensures the reliability of the operation, and the structure is simplified, the assembly efficiency is improved, and the cost is reduced.

Claims (3)

1. Computer keyboard word key device, which includes: a key cap, a key seat, an elastic key ring, a thin film circuit board and a bottom plate; The H-shaped pressing column has rounded guide ribs on the four sides of the pressing column, and another rounded guide rib protrudes symmetrically and vertically from the outer end surface of the guiding rib, that is, the pressing column forms a total of eight groups of symmetrical guide ribs. The bottom surface of the keycap is symmetrically formed with two hook plates; the key base is a hollow base with an upper frame plate and a lower frame plate, and the upper frame plate is a hollow rectangle, and accommodates pressing columns that slide vertically up and down, eight groups The guide ribs slide vertically on the inner wall of the upper frame, and two inner hooks are symmetrically protruded on the inner wall, and an elastic key ring is embedded in the lower frame; the elastic key ring is a hollow conical elastic body , the top end of which is pressed against the bottom of the pressing column, and there is a column protruding downward inside it. The column is connected to the film circuit board by touching the film circuit board. The film circuit board is assembled on the bottom plate, which is a frame supporting the keyboard key structure . 2. The keypad device for a computer keyboard as claimed in claim 1, wherein the two hook plates are arranged symmetrically inside the pressing plate, and outer hooks protrude from the bottom edges of the two hook plates. 3. The keypad device for a computer keyboard as claimed in claim 1, wherein the two inner hooks on the inner wall of the upper frame plate correspond to the two outer hooks on the keycap that are embedded and stopped.

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