Keyboard keys and computer keyboards

Abstract

The application discloses a keyboard key and a computer keyboard. The keyboard key comprises a key cap body, the key cap body has a cavity with an opening facing downward, and an upper surface of the key cap body forms a knocking surface; a hard structure comprises a base and a sleeve downward protruding from the base, the sleeve has a sleeve hole with an opening facing downward; a soft structure comprises a base table and a connecting column downward protruding from the base table, an upper surface of the base table is connected to a bottom of the cavity, the base is fixedly connected with the base table, a main body part of the connecting column is embedded in the sleeve hole, and a cross connecting hole is arranged in the connecting column, and the cross connecting hole is connected with a cross connecting column of a keyboard shaft body. The keyboard key and the computer keyboard have the advantages that when each key is pressed, the hand feeling tends to be consistent, the knocking bottom sound, the resonance sound and the key cap cavity sound generated when rebounding are consistent.

Description

Technical Field

[0001] This invention relates to the field of computer keyboard technology, and in particular to a keyboard and computer keyboard in which each key has a consistent tactile feel when pressed down, and produces a consistent bottoming sound, resonance sound, and keycap cavity sound when rebounding. Background Technology

[0002] Current computer keyboards, especially mechanical keyboards, produce different sounds when each keycap is pressed down, including the bottoming-out sound, the resonance sound, and the hollow sound produced when it rebounds. Excessive noise significantly diminishes the user experience for both ordinary users and mechanical keyboard enthusiasts.

[0003] Mechanical keyboard enthusiasts demand the ultimate in both feel and sound quality; the feel must be excellent, and the noise level must be extremely low. This drives continuous improvement in the research and design of mechanical keyboards to meet the demands of these enthusiasts.

[0004] Therefore, there is an urgent need for keyboard keys and computer keyboards where each key has a consistent feel when pressed down, and produces a consistent bottoming sound, resonance sound, and keycap cavity sound when rebounding. Summary of the Invention

[0005] The purpose of this invention is to provide a keyboard and computer keyboard in which each key has a consistent feel when pressed down, and produces a consistent bottoming sound, resonance sound, and keycap cavity sound when rebounding.

[0006] To achieve the above objectives, the technical solution provided by this invention is as follows:

[0007] In a first aspect, a keyboard layout includes six rows of keys from front to back, characterized in that each row of keys comprises:

[0008] The keycap body has a cavity with an opening facing downwards, and the upper surface of the keycap body forms a striking surface;

[0009] A rigid structure, the rigid structure including a base and a sleeve protruding downward from the base, the sleeve having a sleeve hole with an opening facing downward;

[0010] A flexible structure includes a base and a connecting post protruding downward from the base. The base is connected to the bottom of the cavity, and the base is fixedly connected to the base. The main body of the connecting post is embedded in the sleeve hole, and the interior of the connecting post is provided with a cross-shaped connecting hole, which is connected to the cross-shaped connecting post of the keyboard switch.

[0011] The soft structure is made of liquid silicone, comprising component A and component B. Component A is:

[0012] 80-90 parts of vinyl-terminated polydimethyl silicone oil;

[0013] 10-20 parts of white carbon black;

[0014] Platinum catalyst 0.05–2.2 parts;

[0015] Butyrynethite ester 0.03–0.1 parts;

[0016] Component B consists of:

[0017] Low-irritant silicone oil content: 80–99.9 parts;

[0018] 5-10 parts of phenyl silicone resin;

[0019] 0.03 to 0.2 parts of 1-2-acetylsylethanol.

[0020] Among them, the fifth row of buttons, group A is divided into:

[0021] 84.85 parts of vinyl-terminated polydimethyl silicone oil;

[0022] 15 parts of white carbon black;

[0023] 0.1 parts platinum catalyst;

[0024] 0.05 parts of butyrynethite;

[0025] Component B consists of:

[0026] 94.9 parts of low-irritant silicone oil;

[0027] 5 parts of phenyl silicone resin;

[0028] 0.1 part of 1-2-acetylsylethanol.

[0029] Among them, the A group in the second row of buttons is divided into:

[0030] 84.85 parts of vinyl-terminated polydimethyl silicone oil;

[0031] 15 parts of white carbon black;

[0032] 0.1 parts platinum catalyst;

[0033] 0.05 parts of butyrynethite;

[0034] Component B consists of:

[0035] 90.9 parts of low-irritant silicone oil;

[0036] 9 parts of phenyl silicone resin;

[0037] 0.1 part of 1-2-acetylsylethanol.

[0038] Among them, the A group in the third row of buttons is divided into:

[0039] 79.85 parts of vinyl-terminated polydimethyl silicone oil;

[0040] 20 parts of white carbon black;

[0041] 0.1 parts platinum catalyst;

[0042] 0.05 parts of butyrynethite;

[0043] Component B consists of:

[0044] Low-irritant silicone oil content: 89.9 parts;

[0045] 10 parts of phenyl silicone resin;

[0046] 0.1 part of 1-2-acetylsylethanol.

[0047] The base covers and secures the base.

[0048] The base is a circular or square base, and a plurality of connecting holes are provided through the upper and lower surfaces of the base, and the plurality of connecting holes are evenly arranged around the base, and the soft structure fills the connecting holes.

[0049] The area of ​​the base is smaller than the area of ​​the bottom surface of the cavity, and the base plate covers, encapsulates, and fixes the base to the bottom and sides of the cavity.

[0050] The outer wall of the main body of the connecting post is tightly connected to the inner wall of the sleeve hole, and the connecting post is limited by the sleeve, with the end of the connecting post protruding from the sleeve.

[0051] The end of the connecting post extends horizontally to form a boss, and the boss covers the upper end of the sleeve, and the height of the boss is 0.8 to 1.5 mm.

[0052] The sidewall of the boss is flush with the sidewall of the sleeve.

[0053] The rigid structure can be made of rigid plastic or metal.

[0054] The soft structure is made of liquid silicone.

[0055] Secondly, the present invention provides a computer keyboard, the computer keyboard including the aforementioned keyboard keys.

[0056] The beneficial effects of this invention are:

[0057] 1. The cross-shaped connecting post that is assembled with the switch is made of a soft material, which can minimize the hollow sound of the keycap during rebound, the resonance sound generated during rebound, and the volume of the bottoming-out sound and resonance sound generated when pressing down;

[0058] 2. A rigid material (plastic or metal) sleeve is designed on the outside of the connecting post that assembles with the switch. This can solve the problems of insufficient pull-out force, wobbling and misalignment, and warping of the key corners after the keyboard key is assembled with the switch.

[0059] The invention will become clearer from the following description, taken in conjunction with the accompanying drawings, which are used to explain embodiments of the invention. Attached Figure Description

[0060] Figure 1 The diagram shown is a schematic representation of one embodiment of the keyboard keys of the present invention.

[0061] Figure 2 As shown Figure 1 A view of the keyboard keys from another direction.

[0062] Figure 3 As shown Figure 1 The first exploded view of the keyboard keys shown.

[0063] Figure 4 As shown Figure 1 The second exploded view of the keyboard keys shown.

[0064] Figure 5 As shown Figure 1 The image shows a cross-sectional view of the keyboard keys.

[0065] Figure 6 The diagram shown is a schematic representation of an embodiment of the computer keyboard of the present invention.

[0066] Figure 7 The diagram shows the keypads R1 to R4. Detailed Implementation

[0067] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0068] The components of the embodiments of the invention described and illustrated herein can typically be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0069] In the following, the terms “comprising,” “having,” and their cognates used in the various embodiments of the invention are intended only to indicate a particular feature, number, step, operation, element, component, or combination thereof, and should not be construed as excluding, firstly, the presence of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, or adding the possibility of one or more features, numbers, steps, operations, elements, components, or combinations thereof.

[0070] Furthermore, if the terminology “first,” “second,” “third,” etc., is used in this invention, it is only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0071] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the invention pertain. Terms (such as those defined in commonly used dictionaries) shall be interpreted as having the same meaning as in their contextual meaning in the relevant technical field and shall not be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of the invention.

[0072] First, it should be noted that the terms "up," "down," "left," "right," and "high" used in this article to indicate direction are based on the logical positional relationships between the various components of the keyboard when it is placed horizontally and in normal use. These terms are used to describe the keyboard in order to make it easier to distinguish between them.

[0073] refer to Figures 1 to 5 The keyboard keys 100 provided in this embodiment of the invention include:

[0074] The keycap body 1 has a downward-facing cavity 10, and its upper surface forms a striking surface 11; specifically for mechanical keyboards, the striking surface 11 is typically configured as follows: Figure 1 The concave surface shown.

[0075] The keycap body 1 is made of common keyboard cap plastic. The cavity 10 provides space for connection with the keyboard switches; that is, the keyboard switches enter the cavity 10 and connect to the keycap body 1. When a user uses the keyboard, their fingers strike the keycap body 1, which actually strikes the striking surface 11. Once the keyboard is struck, the struck key will produce a striking sound, including:

[0076] The bottom-hitting sound comes from the sound of the spindle hitting the base of the spindle when it is pressed down.

[0077] Resonance sound is the vibration generated when the switch core and the switch base collide. Due to the overall structure of the keyboard, the bottom cover and PCB board are assembled with the switch base, which will produce resonance sound.

[0078] The hollow sound of the keycap is the echo produced by the keycap vibrating and producing sound at the same time as the keycap and the switch.

[0079] The sound of springing back after being pressed down is the sound produced when the shaft core springs back upward after the pressure is released, and it impacts the top cover of the shaft.

[0080] The sounds from all of these combined will create the sound produced when a user presses a key.

[0081] refer to Figure 6 A mechanical keyboard with six rows of keys from front to back. The most frequently used keys are in the second to fifth rows, totaling four groups of keys. Figure 6 , 7 The labeled keys R1 to R4 represent the following: The second row R1 consists of keys Z, X, C, V, B, N, and M; the third row R2 consists of keys A, S, D, F, G, H, J, K, and L; the fourth row R3 consists of keys Q, W, E, R, T, W, U, I, O, and P; and the fifth row R4 consists of keys 1, 2, 3, 4, 5, 6, 7, 8, 9, and 0. In existing mechanical keyboards, keys such as R1, R2, R3, and R4 have different keycap heights and internal cavity volumes, resulting in different tactile sensations and sounds when typed.

[0082] It should be noted that, in a keyboard, the commonly used keys R1 to R4 can have their actual volume adjusted by changing the thickness of the base inside the keys R1 to R4 (explained below) when they are connected to the keyboard switches. (The thicker the base, the smaller the actual volume of the cavity; the thinner the base, the larger the actual volume of the cavity.)

[0083] Furthermore, the stiffness of the base can be adjusted to regulate its vibration damping effect, thereby adjusting the sound of keys R1 to R4 when the user types. It can even make the sound of keys R1 to R4 more consistent when typed, thus greatly improving the user's keyboard experience in terms of sound.

[0084] It should be noted that the volume of the "keycap cavity sound" mentioned above is closely related to the actual size of the cavity of keys R1 to R4. If other factors are the same, the larger the actual volume of the cavity of keys R1 to R4, the louder the keycap cavity sound will be, and the smaller the actual volume of the cavity of keys R1 to R4, the quieter the keycap cavity sound will be.

[0085] Rigid structure 2, the rigid structure 2 includes a base 21 and a sleeve 22 protruding downward from the base 21, the sleeve 22 has a sleeve hole 23 with an opening facing downward, one embodiment of the sleeve hole 23 is a cylindrical hole;

[0086] Specifically, in some embodiments, the rigid structure 2 is a rigid plastic or a metal structure.

[0087] Specifically, when the rigid structure 2 is made of hard plastic, the rigid structure 2 has high mechanical strength. When the striking surface 11 is struck, the sleeve 22 can effectively limit and prevent tilting of the entire keycap body 1, so that the keycap body 1 always moves in the vertical direction and does not deviate or tilt to the left or right. This can better ensure the fingertip feel when the user is typing and the service life of the keyboard key 100.

[0088] In one embodiment, the rigid structure 2 is one of the connecting components connecting the keyboard key 100 and the keyboard switch. The rigid structure 2 plays a role in firmly connecting, supporting and limiting the keyboard key 100 and the keyboard switch in the connection structure (the sleeve hole 23 plays a limiting role, which will be further described below). However, the rigid structure 2 also plays a role in transmitting vibration when the striking surface 11 is struck, which is not conducive to reducing resonance. Even if it is not conducive to reducing the bottoming sound and resonance sound, it will produce a hollow sound of the keycap when rebounding. Therefore, the soft structure 3 mentioned below is also needed.

[0089] The flexible structure 3 includes a base 31 and a connecting post 32 protruding downward from the base 31. The upper surface of the base 31 is connected to the bottom of the cavity 10. The base 21 is fixedly connected to the base 31. The main body of the connecting post 32 is embedded in the sleeve hole 23 (see reference). Figure 4 , 5Furthermore, the connecting post 32 has a cross-shaped connecting hole 33 inside, which is connected to the cross-shaped connecting post of the keyboard switch.

[0090] The soft structure 3 is made of liquid silicone, comprising component A and component B. Component A is:

[0091] 80-90 parts of vinyl-terminated polydimethyl silicone oil;

[0092] 10-20 parts of white carbon black;

[0093] Platinum catalyst 0.05–2.2 parts;

[0094] Butyrynethite ester 0.03–0.1 parts;

[0095] Component B consists of:

[0096] Low-irritant silicone oil content: 80–99.9 parts;

[0097] 5-10 parts of phenyl silicone resin;

[0098] 0.03 to 0.2 parts of 1-2-acetylsylethanol.

[0099] In one embodiment of this article, the A component of the fifth row of buttons R4 is divided into:

[0100] 84.85 parts of vinyl-terminated polydimethyl silicone oil;

[0101] 15 parts of white carbon black;

[0102] 0.1 parts platinum catalyst;

[0103] 0.05 parts of butyrynethite;

[0104] Component B consists of:

[0105] 94.9 parts of low-irritant silicone oil;

[0106] 5 parts of phenyl silicone resin;

[0107] 0.1 part of 1-2-acetylsylethanol.

[0108] In this embodiment, the soft structure in the fifth row of buttons R4 is the hardest compared to the other buttons (R1 to R4). The hardness of button R1 is tested to be 85 on the Shore A scale.

[0109] In the second row of buttons (R1), the A group is divided into:

[0110] 84.85 parts of vinyl-terminated polydimethyl silicone oil;

[0111] 15 parts of white carbon black;

[0112] 0.1 part of platinum catalyst;

[0113] 0.05 part of butynedioate;

[0114] The component B is as follows:

[0115] 90.9 parts of low-oxygen-containing silicone oil;

[0116] 9 parts of phenyl silicone resin;

[0117] 0.1 part of 1-2 alkynol.

[0118] In this embodiment, the hardness of the soft structure in the second row button R1 is the third among other buttons (in R1 - R4), and the hardness of button R1 is tested to be 75 Shore hardness.

[0119] In the third row button (R2), the component A is as follows:

[0120] 79.85 parts of vinyl-terminated polydimethylsiloxane;

[0121] 20 parts of fumed silica;

[0122] 0.1 part of platinum catalyst;

[0123] 0.05 part of butynedioate;

[0124] The component B is as follows:

[0125] 89.9 parts of low-oxygen-containing silicone oil;

[0126] 10 parts of phenyl silicone resin;

[0127] 0.1 part of 1-2 alkynol.

[0128] In this embodiment, the hardness of the soft structure in the third row button R2 is tested to be 70 Shore hardness, so the soft structure of button R2 has the smallest hardness.

[0129] In one embodiment, the hardness of the soft structure in the fourth row button R3 is made to be 80 Shore hardness, so the hardness of the soft structures of buttons R1, R2, R3, and R4 is arranged as: R2 < R1 < R3 < R4, where the hardness of R4 is the largest.

[0130] It should be noted that the adjustment of the hardness of the soft structure of the fourth row button R3 is the same as that of other row buttons, by adjusting its component A and component B, so as to achieve the effect of adjusting the hardness of the fourth row button R3.

[0131] In one embodiment of the present invention, in terms of keyboard surface height, the third row of keys R2 has the lowest height, and the base inside the third row of keys R2 is made relatively thin to reduce the height of the third row of keys R2. At the same time, the elasticity of key R2 is the best among these key groups. Key R4 has the highest height, and the base inside key R4 is made relatively thick to increase the height of the fifth row of keys R4. The elasticity of the fifth row of keys R4 is relatively weak. This conforms to the typing habits of most users. When striking key R2, the force is often greater than that of other key rows, hence the best elasticity of key R2. The force required to strike key R1 is slightly less than that of R2, key R3 is slightly less than that of R1, and key R4 is slightly less than that of R3. This conforms to the distribution of striking force of most users' fingers and strives to make the sound of each key as consistent as possible when the user strikes each key, helping to improve the user's tactile and auditory experience when using the mechanical keyboard.

[0132] In one embodiment, the soft structure 3 is a liquid silicone material structure.

[0133] In one embodiment, the base 31 covers and secures the base 21.

[0134] The soft structure 3 is fixedly connected to the bottom and inner wall of the cavity 10. When the soft structure 3 is liquid silicone, the liquid silicone is injection molded to cover and fix the base 21. Therefore, the base 31 is fixedly connected to the keycap body 1, and the base 31 can effectively fix the base 21. Thus, the keycap body 1, the rigid structure 2, and the soft structure 3 form a coordinated moving whole. The rigid structure 2 is connected to the keycap body 1 through the soft structure 3, and simultaneously isolates vibration through the soft structure 3, thereby reducing resonance noise.

[0135] The cross-shaped connecting hole 33 connects to the cross-shaped connecting post of the keyboard switch. The connecting post 32 is a flexible structure. While a flexible structure can connect tightly and durablely to the cross-shaped connecting post of the keyboard switch, its mechanical strength is insufficient. When the striking surface 11 is struck by the user, uneven force can easily cause the connecting post 32 to deviate to the side, affecting both the feel and lifespan, and potentially damaging the keys. Since the main body of the connecting post 32 is embedded within the sleeve hole 23, and the sleeve 22 is a rigid structure, such as hard plastic or metal, it provides excellent support and limiting for the connecting post 32. Therefore, the connecting post 32 can simultaneously connect to the switch and isolate vibration, preventing lateral deviation. Thus, the flexible structure 3, while isolating vibration, also isolates the bottoming sound, resonance sound, and the hollow sound produced by the keycap upon rebound.

[0136] In one embodiment, the base 21 is a circular or square base, and a plurality of connecting holes 24 are provided through the upper and lower surfaces of the base 21. The plurality of connecting holes 24 are evenly arranged around the base 21, and the flexible structure 3 fills the connecting holes. By providing the connecting holes 24, the flexible structure can pass through the connecting holes 24 during injection molding to better connect and fix the base 21.

[0137] In one embodiment, the area of ​​the base 21 is smaller than the area of ​​the bottom surface of the cavity 10, and the base 31 covers, encapsulates, and fixes the base 21 to the bottom and sides of the cavity 10. The purpose of this arrangement is to ensure that the base 21 is completely covered during the injection molding of the soft structure, thereby isolating the base 21 from direct contact with the inner wall of the cavity 10, i.e., the keycap body 1, and thus isolating vibration.

[0138] In one embodiment, the outer wall of the main body of the connecting post 32 is tightly connected to the inner wall of the sleeve hole 23, and the connecting post 32 is limited by the sleeve 22, with the end of the connecting post 32 protruding from the sleeve 22.

[0139] The end of the connecting post 32 extends horizontally to form a boss 320, and the boss 320 covers the upper end of the sleeve 22, and the height of the boss 32 is 0.5 to 1.5 mm.

[0140] The actual boss 320 at the end of the connecting post 32 serves to isolate it from direct contact with the cross connecting shaft and to isolate vibration.

[0141] In one embodiment, the sidewall of the boss 320 is flush with the sidewall of the sleeve 22, or it can cover the sleeve 22. This arrangement allows for a tighter connection between the connecting post 32 and the sleeve 22, reducing the likelihood of misalignment during long-term use, and resulting in a more compact structure for both.

[0142] In one embodiment, reference Figure 6 The present invention provides a computer keyboard 200, which includes the keyboard keys 100.

[0143] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A keyboard with six rows of keys from front to back, characterized in that, Each row of keys includes: A keycap body having a cavity with an opening facing downward, and a striking surface formed on the upper surface of the keycap body; A rigid structure including a base and a sleeve protruding downward from the base, and a sleeve hole with an opening facing downward is provided inside the sleeve; A soft structure including a base platform and a connecting column protruding downward from the base platform. The base platform is connected to the bottom of the cavity. The base is fixedly connected to the base platform. The main body part of the connecting column is embedded in the sleeve hole, and a cross-connecting hole is provided inside the connecting column, and the cross-connecting hole is connected to the cross-connecting column of the keyboard axis; The base platform wraps and fixes the base, and the soft structure is fixedly connected to the bottom and inner wall of the cavity; The material of the soft structure is a liquid silicone material, including component A and component B. Component A is: 80-90 parts of vinyl-terminated polydimethylsiloxane; 10-20 parts of white carbon black; 0.05-2.2 parts of platinum catalyst; 0.03-0.1 part of butynedioate; Among them, component B is: 80-99.9 parts of low hydrogen content silicone oil; 5-10 parts of phenyl silicone resin; 0.03-0.2 part of 1-2 alkynyl ethanol; The hardness relationship of the soft structures of the second row of keys R1, the third row of keys R2, the fourth row of keys R3, and the fifth row of keys R4 is: R2 < R1 < R3 < R4; The keyboard surface height relationship of the second row of keys R1, the third row of keys R2, the fourth row of keys R3, and the fifth row of keys R4 is: R2 < R1 < R3 < R4, and the keyboard surface height of each row of keys is determined by the thickness of the corresponding base platform.

2. The keyboard keys as described in claim 1, characterized in that, In the fifth row of keys R4, component A is: 84.85 parts of vinyl-terminated polydimethylsiloxane; 15 parts of white carbon black; 0.1 part of platinum catalyst; 0.05 part of butynedioate; Among them, component B is: 94.9 parts of low hydrogen content silicone oil; 5 parts of phenyl silicone resin; 0.1 part of 1-2 alkynyl ethanol.

3. The keyboard keys as described in claim 1, characterized in that, In the second row of keys R1, component A is: 84.85 parts of vinyl-terminated polydimethylsiloxane; 15 parts of white carbon black; 0.1 part of platinum catalyst; 0.05 part of butynedioate; Among them, component B is: 90.9 parts of low hydrogen content silicone oil; 9 parts of phenyl silicone resin; 0.1 part of 1-2 alkynyl ethanol.

4. The keyboard keys as described in claim 1, characterized in that, In the third row of keys R2, component A is: 79.85 parts of vinyl-terminated polydimethylsiloxane; 20 parts of white carbon black; 0.1 part of platinum catalyst; 0.05 part of butynedioate; Among them, component B is: 89.9 parts of low hydrogen content silicone oil; 10 parts of phenyl silicone resin; 0.1 part of 1-2 alkynyl ethanol.

5. The keyboard keys as described in claim 1, characterized in that, The base platform wraps and fixes the base; The base is a circular or square base, and a plurality of connecting holes are provided through the upper surface and the lower surface of the base, and the plurality of connecting holes are uniformly arranged around the base in a circle, and the soft structure fills the connecting holes.

6. The keyboard keys as described in claim 5, characterized in that, The area of the base is smaller than the area of the bottom surface of the cavity, and the base platform covers and encapsulates the base on the bottom surface and the side surface of the cavity.

7. The keyboard keys as described in claim 5, characterized in that, The outer wall of the main body of the connecting post is tightly connected to the inner wall of the sleeve hole, and the connecting post is limited by the sleeve, with the end of the connecting post protruding from the sleeve.

8. The keyboard keys as described in claim 5, characterized in that, The end of the connecting post extends horizontally to form a boss, and the boss covers the upper end of the sleeve, and the height of the boss is 0.8 to 1.5 mm.

9. The keyboard keys as described in claim 8, characterized in that, The sidewall of the boss is flush with the sidewall of the sleeve.

10. A computer keyboard, characterized in that, Includes the keyboard keys as described in any one of claims 1 to 9.

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