Keyboard key structure

Abstract

The utility model discloses a keyboard key structure, including scissors foot, support piece, be equipped with the limiting piece for preventing scissors axle and the upright side arm formation part interlaced structure of the hook on the support piece or scissors foot, be equipped with the recess on the scissors foot, and the key cap is pressed, and the limiting piece is located in the recess. Increase limiting piece, and separate with the positioning of assembling, and limiting piece compensates the error caused in the assembling process, and the error produced in assembling no longer influences the overall height of keyboard.

Description

Technical Field

[0001] This utility model relates to a computer input device, and more particularly to a keyboard key structure. Background Technology

[0002] The scissor-switch key mechanism, also known as the X-frame, typically consists of two sets of inner and outer parallelogram structures located below the keycaps. It supports the keycaps' movement and has the advantages of short key travel and low height, and is often used in laptops.

[0003] The bottom and top of the scissor-switch key are connected to the support (usually a metal plate) and the keycap, respectively. Figure 2 As shown, the part where the scissor foot 2 is connected to the support member 1 is provided with a scissor shaft 21. The support member 1 is provided with an L-shaped hook 11. A certain amount of interference is reserved between the hook and the scissor shaft. When the keycap is pressed, the scissor shaft 21 can slide outward to the hook 11, but will not slide out of the hook 11, ensuring that the scissor shaft does not detach from the support member when the scissor foot moves.

[0004] like Figure 3 When assembling the scissor legs with the support, force needs to be applied to press down on the scissor legs so that the scissor shaft 21 passes over the top of the hook 11. The existing scissor legs are made of plastic, and this pressing-down assembly method easily causes the scissor legs to be cut by the hook 2. Figure 3 (Shaded area in the left middle half). When the keycap rises, the scissor switch is located at the innermost side of the latch, abutting against the innermost side of the latch. The cut scissor switch is equivalent to being partially removed. Compared to a normal scissor switch, the scissor switch is excessively close to the innermost side of the latch (projected along the scissor switch axis, the scissor switch and the latch partially overlap). The height of the top two sides of the scissor feet is inconsistent with the design, and the keycap is tilted.

[0005] CN 216389137 U discloses a keycap that avoids interference between the lifting mechanism and the sliding structure during assembly by adjusting the structural parameters of the limiting component connected to the scissor pins on the keycap. However, in actual assembly, the assembly methods and equipment vary, resulting in inconsistent scissor pin damage, making it difficult to completely solve this problem. Utility Model Content

[0006] Purpose of the utility model: The purpose of this utility model is to provide a keyboard key structure to solve the problem of keycap tilting caused by the assembly process.

[0007] Technical solution: The keyboard key structure of this utility model includes scissor arms and a support member. The support member or scissor arms are provided with a limiting member to prevent the vertical side arms of the scissor shaft and the hook from forming a partially overlapping structure. The scissor arms are provided with a groove, and when the keycap is pressed, the limiting member is located in the groove.

[0008] Preferably, the limiting member is located on the support member and has a raised structure. When the keycap is raised, the limiting member and one end of the groove abut against each other.

[0009] Preferably, the support member is provided with hooks for restraining the bottom of the scissor feet, and the limiting member is located between two adjacent hooks.

[0010] Preferably, the limiting member is a metal part, formed by cutting a tongue from a support member.

[0011] Preferably, the limiting component is an injection molded part.

[0012] Preferably, the support member is provided with mounting holes for connecting the limiting member.

[0013] Preferably, the limiting members are symmetrically arranged at both ends of the support member.

[0014] Preferably, the scissor feet include an inner frame and an outer frame that are sleeved together. The limiting member and the groove are located on the inner frame and the outer frame, respectively. The limiting member is a hook-shaped structure. The support member is provided with a limiting groove that cooperates with the limiting member. When the keycap is raised, the limiting member hooks onto one end of the limiting groove.

[0015] Beneficial effects: Compared with the prior art, the present invention has the following advantages: 1. Avoids keycap tilting caused by assembly: By adding a limiting component, the assembly and positioning are separated, and the error caused by assembly no longer affects the overall height of the keyboard, thus preventing keycap tilting and maintaining the consistency of keyboard height; 2. Simple structure and easy to process; 3. Significant effect. Attached Figure Description

[0016] Figure 1 This is a top view of the keyboard key structure in the prior art;

[0017] Figure 2 for Figure 1 Sectional view along line AA;

[0018] Figure 3 A schematic diagram of the assembly process of a keyboard key structure in the prior art;

[0019] Figure 4 This is an exploded view of the keyboard key structure of this utility model;

[0020] Figure 5 for Figure 4 Enlarged view of the middle section structure. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0022] Example 1: As Figure 4As shown, this is the keyboard key structure of this utility model. Each key mainly consists of a support member 1, a scissor-switch foot 2, and a keycap 3. The scissor-switch foot 2 is located between the support member 1 and the keycap 3, connecting the support member 1 and the keycap 3. The scissor-switch foot 2 typically includes a sleeved inner frame and an outer frame. The outer side of the inner frame is hinged to the inner side of the outer frame via a pivot. The bottom of the inner frame and the outer frame, near the support member 1, is equipped with a scissor shaft 21. A hook 11 is provided on the support member 1. The hook 11 is L-shaped and forms an opening on one side with the support member 1. The scissor shaft 21 is placed horizontally inside the opening of the hook 11 and can rotate and slide relative to the hook 11, supporting the movement of the keycap 3. The bottom of the keycap 3 also has a similar structure, connecting the keycap and the scissor-switch foot (not shown).

[0023] When the scissor switch 21 is installed into the latch 11 of the support 1, due to the high rigidity of the latch 11, a small portion of the scissor switch 21 is cut off by the end of the lateral arm of the latch 11. This causes the vertical arm of the latch 11 to engage with the cut-off area of ​​the scissor switch 21 when the keycap springs back up, forming a "partial overlap" structure. The actual position of the scissor switch 21 is inconsistent with the intended design. By setting a limiting element on the support 1 or the scissor foot 2, the small portion of the scissor switch 21 cut off by the latch 11 is compensated, preventing the scissor switch 21 from continuing to approach the latch 11 and preventing the two from overlapping. This ensures that when the keycap 3 springs back up, the scissor switch 21 is in the intended position, specifically:

[0024] like Figure 5 The limiting member 12 is located on the support member 1. The limiting member 12 is a protruding structure and can be a metal part integrally formed with the support member 1. For example, a tongue can be cut off on the support member 1 (three sides are cut off and one side is retained), and then bent to form the limiting member 12. It can also be a part assembled to the support member 1 later, or it can be an injection molded part, fixed to the support member 1 by injection molding. When the limiting member 12 is an injection molded part, the support member 1 is provided with mounting holes (not shown) to ensure the accuracy of the installation of the limiting member 12. The size of the limiting member 12 is not limited. When the keycap is raised, the scissor shaft 21 should be in an appropriate position. The limiting member 12 is located between two adjacent hooks 11.

[0025] When the keycap is pressed, the scissor legs 2 will lie flat and be nearly parallel to the support 1. In order to prevent the protruding limiting member 12 from pressing against the scissor legs 2, the scissor legs 2 are provided with a groove 22. When the scissor legs 2 are flat, the limiting member 12 is located in the groove 22. When the scissor legs 2 are open, the limiting member 12 and one end of the groove abut against each other.

[0026] The limiting member 12 can also be located on the scissor foot 2 (not shown). In this case, the limiting member 12 and the groove 22 are located on the inner frame and outer frame respectively, preventing interference between the inner and outer frames. The limiting member 12 has a hook-shaped structure, and the support member 1 has a limiting groove (not shown) that mates with the limiting member 12. When the keycap 3 returns, the hook-shaped structure on the scissor foot 2 hooks one end of the limiting groove, preventing the scissor shaft 21 from continuing to approach the latch 11. When the scissor foot 2 is flat, the limiting member 12 is located in the groove 22. To ensure ease of processing, the limiting member 12 is preferably a protruding structure.

[0027] The keyboard keys can be square or rectangular. When they are rectangular, the limiting members 12 are symmetrically arranged at both ends of the support member 1.

Claims

1. A keyboard key structure, comprising scissor-switch pins (2) and a support member (1), characterized in that, The support member (1) or scissor foot (2) is provided with a limiting member (12) for preventing the vertical side arm of the scissor shaft (21) and the hook (11) from overlapping. The scissor foot (2) is provided with a groove (22). When the keycap is pressed, the limiting member (12) is located in the groove (22).

2. The keyboard key structure according to claim 1, characterized in that, The limiting member (12) is located on the support member (1) and has a raised structure. When the keycap is raised, the limiting member (12) and the groove (22) abut against each other.

3. The keyboard key structure according to claim 2, characterized in that, The limiting member (12) is a metal part, formed by cutting the tongue of the support member (1).

4. The keyboard key structure according to claim 1 or 2, characterized in that, The limiting component (12) is an injection molded part.

5. The keyboard key structure according to claim 2 or 3, characterized in that, The support member (1) is provided with hooks (11) for restraining the bottom of the scissor foot (2), and the limiting member (12) is located between two adjacent hooks (11).

6. The keyboard key structure according to claim 5, characterized in that, The support member (1) is provided with mounting holes for connecting the limiting member (12).

7. The keyboard key structure according to claim 2 or 3, characterized in that, The limiting member (12) is symmetrically arranged at both ends of the support member (1).

8. The keyboard key structure according to claim 1, characterized in that, The scissor foot (2) includes an inner frame and an outer frame that are sleeved together. The limiting member (12) and the groove (22) are located on the inner frame and the outer frame, respectively. The limiting member (12) is a hook-shaped structure. The support member (1) is provided with a limiting groove that cooperates with the limiting member (12). When the keycap is raised, the limiting member (12) hooks one end of the limiting groove.

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