Key assembling device and key

Abstract

The utility model belongs to the technical field of keys, and discloses a key assembling device and a key, the key assembling device comprises a positioning base body, the positioning base body is provided with a positioning groove, the positioning base body is provided with a first protrusion extending towards the positioning groove at one side of the notch of the positioning groove, and the first protrusion is provided with a second protrusion extending towards the positioning groove. The extending distance of the first protrusion towards the positioning groove is smaller than the span of the notch in the extending direction of the first protrusion, and the depth of the first protrusion in the depth direction of the positioning groove is smaller than the depth of the positioning groove. According to the utility model, the problem of deviation after the key is assembled in the key assembling device in the prior art is solved.

Description

Technical Field

[0001] This utility model belongs to the field of button technology, specifically relating to a button assembly device and a button. Background Technology

[0002] For e-books, page turning, brightness adjustment, font size adjustment, and bookmarking are basic functions. Therefore, e-books provide buttons so that users can perform these functions on the e-book using button operations.

[0003] In e-readers, a button assembly is needed to provide the necessary structural support for the buttons. During the assembly process, the buttons are fixed in specific positions within the assembly, and the strength and stability of the assembly ensure that the buttons will not loosen or shift during frequent use. For this purpose, adhesive bonding can be used to attach the buttons to the assembly. This involves applying a suitable amount of adhesive to one surface of either the button or the assembly, and then using a specific positioning method to attach the button to the assembly. Precise positioning is crucial to ensure the two components are correctly aligned, guaranteeing the final quality and performance of the product.

[0004] However, in existing technologies, the positioning structure between the button and the button assembly may not be perfectly designed. For example, the fitting precision between the positioning hole in the button assembly and the button may be insufficient, and the button assembly may rotate around the button due to the adhesive's stickiness or external forces during assembly, which could easily cause displacement of the button or the button assembly during the assembly process.

[0005] In summary, there is an urgent need in the relevant technical field for an assembly solution for e-book buttons to avoid the problem of button misalignment after assembly into the button assembly device. Utility Model Content

[0006] This utility model provides a button assembly device and a button to solve the problem of button misalignment after being assembled into the button assembly device in the prior art.

[0007] To solve the above-mentioned technical problems, in a first aspect, the present invention provides a button assembly device, comprising:

[0008] The positioning base has a positioning groove, and a first protrusion extending toward the positioning groove is provided on one side of the groove opening. The distance the first protrusion extends toward the positioning groove is less than the span of the groove opening in the extension direction of the first protrusion, and the depth of the first protrusion along the depth direction of the positioning groove is less than the depth of the positioning groove.

[0009] Optionally, the first protrusion has a first slope along the depth direction of the positioning groove.

[0010] Optionally, the slope angle of the first slope is 5 degrees.

[0011] Optionally, the positioning base further includes a separation cut, which is disposed on the edge of the positioning base near the groove, and the separation cut is recessed in the direction away from the groove.

[0012] Optionally, the positioning base further includes a first partition, which is located between the separation cut and the groove.

[0013] Optionally, the positioning base and the positioning groove are rectangular in the middle and semi-circular at both ends in the projection pattern along the projection direction from top to bottom.

[0014] Optionally, the positioning base is an integrally molded injection molded part.

[0015] Secondly, this utility model provides a button, and an assembly device for assembling the button as described above, comprising:

[0016] A button base is provided with a pressing part and a positioning part. The positioning part is located on the side of the pressing part away from the pressing side, and the projected area of ​​the pressing part on the side of the positioning part close to the pressing part is larger than the area of ​​the side of the positioning part.

[0017] Optionally, the button base is further provided with a tactile enhancement part, which is disposed on the pressing side of the pressing part.

[0018] Optionally, the button base is a metal component.

[0019] Compared with the prior art, the button assembly device provided by this utility model has the following advantages:

[0020] Because existing technologies require applying glue between the button and the positioning groove of the button assembly device, and the shape of the glue is variable, it can cause instability when the button is bonded to the button assembly device. In this invention, the first protrusion is provided on one side of the groove opening of the positioning groove and extends toward the positioning groove. When the extension length of the first protrusion matches the button, it can limit the button in the positioning groove of the positioning base when the button is installed into the button assembly device, so that the positioning base will not shift relative to the button. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model, not all embodiments. For those skilled in the art, other drawings obtained from these drawings without creative effort are all within the protection scope of this utility model.

[0022] Figure 1 This is a three-dimensional structural diagram of a button assembly device provided in an embodiment of the present utility model;

[0023] Figure 2 This is a perspective structural diagram of another button assembly device provided in this embodiment of the utility model;

[0024] Figure 3 This is a cross-sectional view of a button assembly device provided in an embodiment of the present utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of a button provided in an embodiment of the present utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of another button provided in an embodiment of this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of a button and a button assembly device after assembly, provided by an embodiment of this utility model.

[0028] Figure number explanation: 100-positioning base, 110-positioning groove, 120-first protrusion, 130-separation cut, 140-first partition, 200-button base, 210-pressing part, 211-pressing side, 220-positioning part, 230-tactile enhancement part. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0030] To make the description of this disclosure more detailed and complete, illustrative descriptions of the implementation methods and specific embodiments of this utility model are provided below; however, this is not the only form of implementing or applying the specific embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.

[0032] In addition, in the description of the embodiments of this utility model, "multiple" refers to two or more, and other quantifiers are similarly understood. The preferred embodiments described herein are only for illustration and explanation of this utility model and are not intended to limit this utility model. Furthermore, in the absence of conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other.

[0033] like Figure 1 and Figure 2 The image shown is a perspective view of a button assembly device provided in an embodiment of the present invention, viewed from different directions. The button assembly device includes:

[0034] Positioning substrate 100, Figure 3 The image shown is a cross-sectional view of the positioning base 100, as follows: Figure 3 As shown, the positioning base 100 has a positioning groove 110. The positioning base 100 has a first protrusion 120 extending toward the positioning groove 110 on one side of the groove opening. The distance the first protrusion 120 extends toward the positioning groove 110 is less than the span of the groove opening in the extension direction of the first protrusion 120. The depth of the first protrusion 120 along the depth direction of the positioning groove 110 is less than the depth of the positioning groove 110.

[0035] It should be noted that the positioning base 100 can be of any shape, such as a cuboid or a cube. The positioning groove 110 can be located anywhere within the positioning base 100. For example, when the positioning base 100 is a cube, the positioning groove 110 can be located at the center of one of its faces. The shape of the positioning groove 110 can be set according to specific application needs. For example, the projected shape of the positioning groove 110 along the projection direction from the groove opening to the bottom of the groove can be rectangular. The depth of the positioning groove 110 can be set according to specific application needs. For example, the depth of the positioning groove 110 can match the depth to which the button is inserted into the positioning groove 110.

[0036] It should be noted that the distribution of the first protrusion 120 on one side of the slot opening of the positioning groove 110 can be either covering the entire side of the slot opening or distributed on a portion of the slot opening, as long as it satisfies the limiting function of the button; no detailed limitation is imposed here. The extension length of the first protrusion 120 is such that the distance the first protrusion 120 extends toward the positioning groove 110 is less than the span of the slot opening in the extension direction of the first protrusion 120, and the depth of the first protrusion 120 along the depth direction of the positioning groove 110 is less than the depth of the positioning groove 110; no detailed limitation is imposed here.

[0037] Optionally, in order to make the positioning effect of the first protrusion 120 on the button more stable, the first protrusion 120 can be distributed to fill the opening side of the positioning groove 110.

[0038] Understandably, the distance by which the first protrusion 120 extends toward the positioning groove 110 is less than the span of the groove in the direction of the first protrusion 120's extension, ensuring that the button is not blocked by the first protrusion 120 when it is assembled into the button assembly device. The depth of the first protrusion 120 along the depth direction of the positioning groove 110 is less than the depth of the positioning groove 110, ensuring that there is space for adhesive between the button and the button assembly device when the button is assembled into the button assembly device.

[0039] Thus, it is understandable that, in the prior art, glue needs to be applied between the button and the positioning groove 110 of the button assembly device, and the shape of the glue is variable, which makes the bonding between the button and the button assembly device unstable. In this utility model, the first protrusion 120 is provided on one side of the groove opening of the positioning groove 110 and extends toward the positioning groove 110. In this way, when the extension length of the first protrusion 120 matches the button, it can limit the button in the positioning groove 110 of the positioning base 100 when the button is installed into the button assembly device, so that the positioning base 100 will not shift relative to the button.

[0040] In one alternative implementation, such as Figure 1 and Figure 3 As shown, the first protrusion 120 has a first slope along the depth direction of the positioning groove 110.

[0041] It is understood that the first protrusion 120 has a first slope along the depth direction of the positioning groove 110, that is, the extension length of the first protrusion 120 towards the positioning groove 110 gradually increases in the direction from the groove opening to the bottom of the groove.

[0042] It should be noted that the slope of the first ramp can be set according to the specific needs of the application, and no detailed limitation is made here.

[0043] It is understandable that when the first protrusion 120 has a first slope along the depth direction of the positioning groove 110, in order to ensure that the button can be matched and assembled into the button assembly device, the contact surface between the button and the first protrusion 120 also needs to form a second slope that matches the first slope.

[0044] In one alternative implementation, such as Figure 1 and Figure 3 As shown, the slope angle of the first slope is 5 degrees.

[0045] It should be noted that the slope angle is the tangent value of the slope, while the slope is the ratio of the vertical distance of the slope to the horizontal distance of the slope.

[0046] Understandably, when the button is assembled with the positioning groove 110 of the positioning base 100, the 5-degree first ramp plays a good guiding role. This small ramp angle allows the positioning part 210 to enter the positioning groove 110 more easily. Like a gentle slope, even if there is a certain positional deviation between the positioning part 210 and the positioning groove 110 during the assembly process, the positioning part 210 can gradually slide into the positioning groove 110 along the ramp without colliding or getting stuck due to an excessively large angle. Furthermore, after guiding the positioning part 210 into the positioning groove 110, the 5-degree ramp angle ensures that the positioning part 210 fits tightly against the positioning groove 110. Because of the small ramp angle, the positioning part 210, after entering the positioning groove 110, will reach the predetermined position more accurately due to the guiding effect of the ramp. Compared with a larger ramp angle, the 5-degree ramp angle can effectively prevent the positioning part 210 from excessively shifting during the assembly process, thereby ensuring the positional accuracy of the button after assembly. Meanwhile, this small-angle ramp provides lateral support after the positioning part 210 is assembled, enhancing the stability of the positioning part 210 within the positioning groove 110 and reducing the shaking or displacement of the button due to external forces during use. Furthermore, during assembly, the interaction between the positioning part 210 and the positioning groove 110 may generate assembly stress. The 5-degree initial ramp effectively disperses this stress. As the positioning part 210 enters the positioning groove 110 along the ramp, the assembly stress is not concentrated at a single point or in a single direction, but rather gradually distributed throughout the assembly process guided by the ramp. This reduces the risk of component damage caused by stress concentration, such as preventing cracks at the edge of the positioning groove 110 due to stress concentration, or scratches on the surface of the positioning part 210, thereby extending the service life of the positioning base 100 and the button base 200.

[0047] In one alternative implementation, such as Figure 1As shown, the positioning base 100 also includes a separation cut 130, which is disposed on the edge of the positioning base 100 near the groove, and the separation cut 130 is recessed in the direction away from the groove.

[0048] It should be noted that the separation cut 130 can be set at any position on the edge of the positioning base 100 near the groove. For example, the separation cut 130 can be set at the middle position of the edge of the positioning base 100 near the groove, or it can be set at the end position of the positioning base 100 near the groove. The depth of the recess of the separation cut 130 in the direction away from the groove can be set according to the specific needs of the application, and is not limited in detail here.

[0049] Optionally, since the length of the end of the positioning base 100 is shorter than the length of other parts of the positioning base 100, the separation cut 130 can be set on the edge of the positioning base 100 near the slot. The separation cut 130 can be made to cover the edge of the positioning base 100 near the slot. This makes it easier to find the stress point when separating the positioning base 100 and the button through the separation cut 130, thus saving more effort.

[0050] In one alternative implementation, such as Figure 1 As shown, the positioning base 100 also includes a first partition 140, which is located between the separation cut 130 and the groove.

[0051] It should be noted that in this implementation, the first partition 140 covers the entire area between the separation cut 130 and the groove. The first partition 140 in this implementation is used to separate the separation cut 130 from the groove, preventing the separation cut 130 from extending into the groove and causing the glue in the positioning groove 110 to flow out.

[0052] It should be noted that the first partition 140 can be any structure that allows the separation cut 130 and the groove to be separated. Optionally, the first partition 140 can be flush with the height of the groove. In this way, since the separation cut 130 is recessed in the direction away from the groove, the separation cut 130 can be prevented from extending into the groove, thus preventing the glue in the positioning groove 110 from flowing out of the separation cut 130.

[0053] In one alternative implementation, such as Figure 1 As shown, the positioning base 100 and the positioning groove 110 are rectangular in the middle and semi-circular at both ends in the projection pattern along the projection direction from top to bottom.

[0054] It should be noted that, in this implementation, the length and width of the rectangle in the middle of the projected image of the positioning base 100 and the positioning groove 110 in the projection direction from top to bottom can be set according to the specific needs of the application, and the radius of the semicircles at both ends can also be set according to the specific needs of the application. No detailed limitation is made here.

[0055] Understandably, a shape with a rectangular center and semi-circular ends is relatively easy to achieve in mold design and manufacturing. For injection molding or machining, the rectangular portion can be completed using simple straight-line cutting or the straight walls of the injection cavity, while the semi-circular portions can be machined using standard circular tools or the curved parts of the mold. For example, in injection mold manufacturing, the circular portion can be machined by rotating mold components or using a ball end mill. Compared to complex irregular shapes, the machining accuracy of this shape is easier to control, and it can reduce the cost and time of mold manufacturing. Furthermore, the rectangular portion provides a clear orientation for positioning. When the button mates with the positioning groove 110, the edges of the rectangle can serve as a reference, allowing the positioning part 210 to enter the positioning groove 110 in the correct orientation. Compared to a completely circular or irregularly shaped positioning groove 110, this shape can effectively prevent the button from rotating during assembly, thereby improving positioning accuracy. For example, in e-book button assembly, if the button is oriented incorrectly, it may cause the button to malfunction or interfere with other components; the presence of the rectangular portion can effectively prevent this. The semi-circular portions at both ends provide better constraint on the button in the circumferential direction. Once the button enters the positioning groove 110, the semi-circular portion conforms to the curved edge of the button, restricting its movement in the circumferential direction. This circumferential constraint, combined with the directional positioning of the rectangular portion, allows the button to be more stably fixed within the positioning groove 110, reducing positional shifts caused by vibration, external impact, and other factors during use, thus ensuring the long-term stability of the button's position.

[0056] During positioning and product use, interaction forces are generated between the positioning groove 110 and the button. The rectangular shape in the middle and the semi-circular ends make the stress distribution more uniform. The straight edges of the rectangular part and the curved edges of the semi-circular parts can disperse the stress over a larger area. For example, when subjected to external force, the semi-circular edges can disperse the stress along the circumferential direction, and the rectangular part can transmit and disperse the stress along the straight direction, avoiding stress concentration at certain points or areas, thereby reducing the risk of damage to the positioning groove 110 and the button and extending their service life.

[0057] In one alternative implementation, the positioning base 100 is an integrally molded injection molded part.

[0058] Understandably, injection molding is a highly efficient manufacturing process suitable for mass production. For components like the positioning base 100, which require mass production, injection molding can significantly reduce production costs. By creating a single mold, positioning bases 100 of the same shape can be produced quickly and in batches. Moreover, injection molding materials are generally relatively inexpensive, especially compared to some metal materials, resulting in substantial material cost savings in large-scale production. Modern injection molding technology can achieve high molding precision. Through precise mold design and advanced injection molding process control, positioning bases 100 that meet design requirements can be precisely manufactured. During the injection molding process, the flow and molding of the plastic material within the mold cavity can be precisely controlled, ensuring the dimensional accuracy, shape accuracy, and surface quality of the positioning base 100. For example, dimensional tolerances for critical components such as the positioning groove 110 can be controlled within a very small range, ensuring good fit with other components. The materials used in injection molding (such as various thermoplastics) have good plasticity and can be easily molded into complex shapes. For the positioning base 100, with its unique shape—rectangular in the middle and semi-circular at both ends—and its structure including the positioning groove 110 and the first protrusion 120, injection molding can effectively achieve these shape requirements. Furthermore, various additives can be added during injection molding to modify material properties; for example, adding reinforcing fibers can improve the material's strength and stiffness, while adding lubricants can improve its demolding performance. Compared to materials like metals, injection-molded parts are typically lighter. This is a significant advantage for portable devices such as e-readers. A lighter positioning base 100 reduces the overall weight of the device, improving portability and user experience. For instance, when holding an e-reader, the lighter weight reduces hand fatigue, allowing for more comfortable extended use. Most injection-molded materials possess good insulation properties, which is crucial for the positioning base 100 in electronic devices. Inside e-readers, various electronic components and circuits exist; good insulation prevents current leakage and avoids electrical faults such as short circuits. For example, even in humid environments, the injection-molded positioning base 100 effectively isolates electronic components, ensuring the device's safety and reliability. In a one-piece injection molded part, other functional components can be easily integrated. For example, metal inserts can be embedded in the positioning base 100 to enhance the strength of certain parts or to achieve functions such as electromagnetic shielding; or structures such as buckles and hooks that connect with other components can be directly molded during the injection molding process, which facilitates the assembly of the positioning base 100 with other components inside the e-book and reduces additional assembly processes and the number of parts.

[0059] like Figure 4 and Figure 5 This is a perspective view of a button in different directions provided by an embodiment of the present invention. The button is assembled in the button assembly device described above. Figure 6 A perspective view of a button and its assembly device after assembly, provided for an embodiment of this utility model, wherein the button includes:

[0060] A button base 200 is provided with a pressing part 210 and a positioning part 220. The positioning part 220 is located on the side of the pressing part 210 away from the pressing side 211, and the projected area of ​​the pressing part 210 on the side of the positioning part 220 close to the pressing part 210 is larger than the area of ​​the side of the positioning part 220.

[0061] It should be noted that the shape of the pressing part 210 can be any feasible shape. For example, it can be oval, elongated, or even an ergonomic curved shape. For example, an elongated pressing part 210 is more suitable for the natural sliding and pressing action of the thumb when operating with one hand, and can be applied to some mini e-readers or e-reader devices with special operating layouts that have high requirements for one-handed operation.

[0062] Understandably, the projected area of ​​the pressing part 210 on the side of the positioning part 220 closest to the pressing part 210 is larger than the area on the side of the positioning part 220. This design enhances the stability of the button. From a size perspective, the difference between the projected area and the area of ​​the positioning part 220 can be adjusted according to actual needs. If the difference is large, for example, the projected area is more than 1.5 times the area of ​​the positioning part 220, the button will be more stable during pressing, less prone to tilting or wobbling, suitable for larger buttons requiring greater pressing force, such as the power button or home button on some e-readers. Users often apply considerable force when operating these buttons, and a larger projected area can better distribute pressure and maintain stability. If the difference is small, such as between 1.1 and 1.3 times, while ensuring a certain level of stability, the button can appear more compact and refined, suitable for some auxiliary function keys or buttons used in e-reader layouts with limited space.

[0063] It should be noted that the positioning part 220 of the button is used to insert into the positioning groove 110 in the button assembly device. In order for the positioning part 220 of the button to be better positioned by the positioning groove 110, the positioning part 220 of the button needs to be adapted to the size of the positioning groove 110 and be able to be stably inserted into the positioning groove 110.

[0064] In one alternative implementation, such as Figure 4 and Figure 5 As shown, the button base 200 is also provided with a tactile enhancement part 230, which is disposed on the pressing side 211 of the pressing part 210.

[0065] The pressing side 211 of the pressing part 210 is provided with a tactile enhancement part 230, which can be made of rubber with raised or textured structures. Rubber raised parts can be designed in different shapes, such as circular granular raised parts or strip-shaped raised parts. Circular granular raised parts provide a softer tactile feel, suitable for buttons that are frequently pressed over long periods, such as the page-turning buttons on e-books. Users frequently operate the page-turning buttons during reading, and the soft tactile feel can reduce finger fatigue. Strip-shaped raised parts provide a clearer sense of direction when the finger presses, suitable for buttons with specific directional operation functions, such as volume control buttons. Users can more intuitively perceive whether the volume is increasing or decreasing based on the direction of the strip-shaped raised parts. Textured structures can be fine horizontal or diagonal lines. Horizontal lines increase the lateral friction between the finger and the button, preventing the finger from sliding laterally when pressing. Diagonal lines provide friction while giving the user a unique tactile experience, and can be applied to e-book buttons with personalized design requirements.

[0066] It should be noted that multiple haptic enhancement units 230 can be configured, such as... Figure 4 and Figure 5 As shown, one of the tactile enhancement portions 230 can be cylindrical, and two opposite irregular frustum-shaped tactile enhancement portions 230 can be provided on opposite sides of the cylindrical tactile enhancement portion 230.

[0067] In one alternative implementation, the button base 200 is a metal component.

[0068] Understandably, when the button base is made of metal, materials such as stainless steel and aluminum alloy are commonly chosen. Stainless steel offers excellent corrosion resistance and high strength, ensuring the buttons are not easily deformed or rusted during long-term use. It is suitable for e-reader products operating in complex environments, such as outdoor e-readers or industrial e-reader devices working in humid environments. Aluminum alloy, on the other hand, is lightweight and has good thermal conductivity, which helps dissipate heat during frequent button presses and reduces the overall weight of the e-reader, improving user comfort. It is a good choice for consumer portable e-readers.

[0069] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the structure and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

[0070] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A button assembly device, characterized in that, include: The positioning base has a positioning groove, and a first protrusion extending toward the positioning groove is provided on one side of the groove opening. The distance the first protrusion extends toward the positioning groove is less than the span of the groove opening in the extension direction of the first protrusion, and the depth of the first protrusion along the depth direction of the positioning groove is less than the depth of the positioning groove.

2. The button assembly device according to claim 1, characterized in that, The first protrusion has a first slope along the depth direction of the positioning groove.

3. The button assembly device according to claim 2, characterized in that, The slope angle of the first slope is 5 degrees.

4. The button assembly device according to claim 1, characterized in that, The positioning base also includes a separation cut, which is located on the edge of the positioning base near the groove and is recessed in the direction away from the groove.

5. The button assembly device according to claim 4, characterized in that, The positioning base also includes a first partition, which is located between the separation cut and the groove.

6. The button assembly device according to claim 1, characterized in that, The positioning base and the positioning groove are rectangular in the middle and semi-circular at both ends when projected along the top-to-bottom projection direction.

7. The button assembly device according to claim 1, characterized in that, The positioning base is an integrally molded injection molded part.

8. A button, assembled in an assembly device for a button as described in any one of claims 1-7, characterized in that, include: A button base is provided with a pressing part and a positioning part. The positioning part is located on the side of the pressing part away from the pressing side, and the projected area of ​​the pressing part on the side of the positioning part close to the pressing part is larger than the area of ​​the side of the positioning part.

9. The button according to claim 8, characterized in that, The button base is also provided with a tactile enhancement part, which is located on the pressing side of the pressing part.

10. The button according to claim 8, characterized in that, The button base is a metal component.

Images