Back key structure and gaming device

Abstract

The application provides a back key structure and a game device, wherein the back key structure is installed on a game device, the game device is provided with a mounting groove, the back key structure is installed in the mounting groove and can reciprocate in the mounting groove along a pressing direction under the action of external force, a side away from a central axis along a second direction of the game device is an outer side, and a side close to the central axis is an inner side; a side close to an upper end along a first direction of the game device is an upper end part, and a side close to a lower end is a lower end part; the back key structure comprises a pressing surface, a circumferential edge of the pressing surface is provided with a first chamfer structure, the first chamfer structure is arranged at a position of the pressing surface close to the outer side of the game device and close to the upper end part, the first chamfer structure has a first chamfer radius, and the first chamfer radius is greater than the chamfer radius of other chamfer structures on the pressing surface. Thus, the first chamfer structure is arranged to have the maximum chamfer radius, so that the fitting of the operating finger and the edge of the back key structure is smoother.

Description

Technical Field

[0001] This application relates to the field of analog devices, and more particularly to a back key structure and a gaming device. Background Technology

[0002] With the continued development of the gaming industry, the structural design and grip experience of gaming devices, as primary control peripherals, have become major factors for improvement. Back buttons, as key components for expanding control dimensions and improving operational efficiency, are widely used in various gaming devices. Currently, conventional back buttons often adopt elongated or irregularly shaped polygonal outlines, with an unreasonable layout of the pressing surface, easily reducing the precision of pressing and affecting operation. At the same time, the chamfered edges of traditional back buttons are standardized and not optimized for areas that are in contact with the device for extended periods, such as the outside and top. Prolonged grip can easily cause discomfort such as hand chafing and indentations, exacerbating hand fatigue and seriously affecting the grip comfort and overall user experience during extended gaming sessions. Summary of the Invention

[0003] The purpose of this application is to provide a back button structure and a gaming device to solve the problems mentioned in the background art.

[0004] To address the aforementioned problems, in a first aspect, a back button structure is provided, mounted on a gaming device. The gaming device has a mounting slot, and the back button structure is mounted within the mounting slot. The back button structure can reciprocate within the mounting slot along a pressing direction under external force. The gaming device has a first direction and a second direction. The first direction is the vertical extension direction of the gaming device, and the second direction is the horizontal extension direction of the gaming device. The side away from the central axis of the gaming device along the second direction is the outer side, and the side closer to the central axis of the gaming device is the inner side. The side closer to the upper end of the gaming device along the first direction is the upper end, and the side closer to the lower end of the gaming device is the lower end. The back button structure includes a pressing surface, and the circumferential edge of the pressing surface has a chamfer structure. The chamfer structure includes a first chamfer structure, which is located on the pressing surface near the outer side of the gaming device and near the upper end. The first chamfer structure has a first chamfer radius, which is larger than the chamfer radii of the other chamfer structures on the pressing surface.

[0005] Therefore, by adopting a differentiated chamfer radius design, with the first chamfer structure set as the maximum chamfer radius, the contact between the operating fingers and the edge of the back button structure is smoother, effectively avoiding problems such as hand discomfort and pressure marks, significantly improving the comfort of holding the device for extended gaming sessions and reducing hand fatigue. At the same time, the differentiated chamfer radius setting makes the force distribution at the edge of the pressing surface more reasonable, allowing users to obtain clearer pressing feedback and improving the accuracy of control.

[0006] In one possible embodiment of the first aspect, the remaining chamfer structure includes a second chamfer structure located on the pressing surface near the inner side of the gaming device and near the lower end, the second chamfer structure having a second chamfer radius, wherein the first chamfer radius is greater than the second chamfer radius.

[0007] In one possible embodiment of the first aspect, the back key structure further includes an outer peripheral sidewall, which is integrally formed with the pressing surface. The end of the outer peripheral sidewall away from the pressing surface is provided with a first apex structure and a second apex structure corresponding to the first chamfer structure and the second chamfer structure, respectively. The first chamfer structure has a first edge midpoint, and the first apex structure has a first apex vertex. A first distance exists between the first edge midpoint and the first apex vertex. The second chamfer structure has a second edge midpoint, and the second apex structure has a second apex vertex. A second distance exists between the second edge midpoint and the second apex vertex. The second distance is greater than the first distance.

[0008] In one possible embodiment of the first aspect, the upper end of the gaming device defines a first reference plane, which is a tangent plane to the upper end of the gaming device, wherein the pressing surface is perpendicular to the first reference plane.

[0009] In one possible embodiment of the first aspect, the remaining chamfer structure further includes a third chamfer structure and a fourth chamfer structure. The third chamfer structure is located on the pressing surface near the outer side of the gaming device and near the lower end, and the fourth chamfer structure is located on the pressing surface near the inner side of the gaming device and near the upper end. The third chamfer structure has a third chamfer radius, the fourth chamfer structure has a fourth chamfer radius, and the first chamfer radius is greater than the second chamfer radius, the third chamfer radius, and the fourth chamfer radius, respectively.

[0010] In one possible embodiment of the first aspect, the outer peripheral sidewall, away from the pressing surface, is provided with a third apex structure and a fourth apex structure corresponding to the third chamfer structure and the fourth chamfer structure, respectively; wherein, the third chamfer structure has a third edge midpoint, the third apex structure has a third apex vertex, and there is a third distance between the third edge midpoint and the third apex vertex; the fourth chamfer structure has a fourth edge midpoint, the fourth apex structure has a fourth apex vertex, and there is a fourth distance between the fourth edge midpoint and the fourth apex vertex; wherein, the second distance is greater than the first distance, the third distance, and the fourth distance, and the second distance, the first distance, the third distance, and the fourth distance decrease sequentially.

[0011] In one possible embodiment of the first aspect, the pressing surface includes a first side, a second side, a third side, and a fourth side, wherein the first side and the third side are disposed opposite to each other and parallel to each other along the first direction, and the second side and the fourth side are disposed opposite to each other and parallel to each other along the second direction; wherein the first side, the second side, the third side, and the fourth side enclose a quadrilateral outline, and one side of the first chamfer structure is tangent to the first side and the other side is tangent to the second side.

[0012] In one possible embodiment of the first aspect, the mounting groove has a square outline and includes a first groove side and a third groove side extending along the first direction, and a second groove side and a fourth groove side extending along the second direction; wherein the lengths of the first groove side and the third groove side are equal, and the lengths of the second groove side and the fourth groove side are equal.

[0013] In one possible embodiment of the first aspect, the first groove edge and the third groove edge each have a first length, and the second groove edge and the fourth groove edge have a second length, wherein the difference between the first length and the second length is less than a preset difference.

[0014] In one possible embodiment of the first aspect, a soft rubber layer is provided on the pressing surface, the soft rubber layer extending along the edge of the pressing surface and connecting with the first chamfer structure and the remaining chamfer structures respectively.

[0015] In a second aspect, a gaming device is provided, including a device body and at least one back button structure as described in the first aspect, wherein the back button structure is disposed on the device body.

[0016] In one possible embodiment of the second aspect, the gaming device further includes an inner mounting slot and an inner back button structure mounted in the inner mounting slot, wherein the inner mounting slot of the inner back button structure and the mounting slot of the back button structure have a height difference in the first direction.

[0017] In one possible embodiment of the second aspect, the mounting groove is located on the device body, the pressing direction is perpendicular to the surface where the mounting groove is located, wherein the projection of the back key structure in the pressing direction is located within the mounting groove.

[0018] In one possible embodiment of the second aspect, the at least one back key structure includes a first back key structure and a second back key structure, wherein, in the second direction, the first back key structure and the second back key structure are symmetrically mounted on opposite sides of the device body.

[0019] In one possible embodiment of the second aspect, the inner back key structure includes a first inner back key structure and a second inner back key structure, wherein the first inner back key structure is disposed on the device body at a position inside the first back key structure, and the second inner back key structure is disposed on the device body at a position inside the second back key structure.

[0020] In one possible embodiment of the second aspect, the device further includes a button structure disposed at the upper end of the gaming device, the upper end being a side close to the upper end of the gaming device along the first direction, the button structure having a first mounting center line, the back button structure having a second mounting center line, and the first mounting center line being parallel to the second mounting center line. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the game device in some embodiments of this application; Figure 2 This is a schematic diagram of the back key structure in some embodiments of this application; Figure 3 This is another structural schematic diagram of the back key structure in some embodiments of this application; Figure 4 This is yet another structural schematic diagram of the back key structure in some embodiments of this application; Figure 5 This is yet another structural schematic diagram of the back key structure in some embodiments of this application; Figure 6 This is another structural schematic diagram of the gaming device in some embodiments of this application; Figure 7 for Figure 6 A magnified structural diagram at point A. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0024] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] The back buttons are function buttons that assist users in performing compound operations and inputting shortcut commands when holding the game device 100 with both hands. Specifically, when the user holds the game device 100 with both hands, there are function buttons on the back of the game device 100 that can be operated by the index or middle finger. Referring to the background art, current back buttons have problems such as unreasonable pressing surface layout and uneven force distribution. Therefore, this application provides a back button structure 120 that improves the uniformity of pressing force, grip comfort and operation stability by optimizing the chamfered structure of the back button edges.

[0027] Please refer to the following: Figure 1 and Figure 2 , Figure 1 The following are schematic diagrams of the structure of the game device in some embodiments of this application. Figure 2This is a schematic diagram of the back button structure in some embodiments of this application. In some embodiments, the back button structure 120 is mounted on a gaming device 100. The gaming device 100 has a mounting groove 110, and the back button structure 120 is mounted in the mounting groove 110. The back button structure 120 can reciprocate within the mounting groove 110 in the pressing direction under the action of external force. The gaming device has a first direction a and a second direction b. The first direction a is the vertical extension direction of the gaming device 100, and the second direction b is the horizontal extension direction of the gaming device 100. The side along the second direction b away from the central axis of the gaming device 100 is the outer side, and the side closer to the gaming device 100 is the outer side. One side of the central axis is the inner side; the side closer to the upper end of the game device 100 along the first direction a is the upper end 131, and the side closer to the lower end of the game device is the lower end 132; wherein, the back button structure 120 includes a pressing surface 125, the circumferential edge of the pressing surface 125 is provided with a chamfer structure 11, the chamfer structure 11 includes a first chamfer structure 111, the first chamfer structure 111 is provided on the pressing surface 125 near the outer side of the game device 100 and near the upper end 131, the first chamfer structure 111 has a first chamfer radius R1, the first chamfer radius R1 of the first chamfer structure 111 is greater than the chamfer radius of the other chamfer structures 12 on the pressing surface 125.

[0028] The pressing surface 125 is the main operating surface of the back button structure 120. Specifically, it refers to the contact surface where the user's fingers press the back button structure 120 to achieve quick operation when holding the game device 100 with both hands. Its surface is flat and adapts to the curvature of the fingers, providing stable pressing support for the user. The circumferential edge of the pressing surface 125 refers to the four contour edges of the pressing surface 125, which are the parts that the user's hands easily come into contact with when holding the game device 100.

[0029] The chamfered structure 11 is a transition structure set on the circumferential edge of the pressing surface 125. Essentially, it is a structure formed by rounding the right angle of the pressing surface 125 edge. Its function is to eliminate the sharp edges of the circumferential edge of the pressing surface 125, so as to avoid the user being hurt by the sharp edges when holding or pressing, and at the same time improve the fit between the hand and the circumferential edge of the back button structure 120.

[0030] The chamfer radius is the main parameter for measuring the degree of arc transition of the chamfer structure 11. Specifically, it refers to the radius of the arc formed by the chamfer structure 11. The larger the chamfer radius, the smoother the arc transition, and the higher the comfort when the hand is in contact with it. The smaller the chamfer radius, the steeper the arc transition, approaching the right angle edge, which is more likely to produce a rough feeling. Among them, the first chamfer radius R1 is larger than the chamfer radius of the other chamfer structures 12, which means that the arc transition of the first chamfer structure 111 is the smoothest, and the arc transitions of the other chamfer structures 12 are relatively smooth. In practical applications, the position of the first chamfer structure 111 is the part where the user's palm comes into contact with the back button structure 120 most frequently and bears the greatest force when holding the gaming device 100. A larger chamfer radius can minimize the rough feeling when the user uses the back button and improve the comfort of holding it for a long time.

[0031] The mounting slot 110 is a pre-designed assembly structure on the gaming device 100, used to accommodate and limit the back button structure 120, ensuring that the back button structure 120 can be stably installed on the gaming device 100, and providing guidance for the reciprocating movement of the back button structure 120. The pressing direction refers to the direction in which the user applies external force to the pressing surface 125 when pressing the back button structure 120. Under the action of external force, the back button structure 120 reciprocates along this direction, realizing the pressing trigger and reset of the button, thereby realizing the quick control functions in the game, such as perspective switching.

[0032] Therefore, by adopting a differentiated chamfer radius design, the first chamfer structure 111, which is the most frequently touched, is set as the largest chamfer radius. This makes the contact between the operating fingers and the edge of the back button structure 120 smoother, effectively avoiding problems such as hand discomfort and pressure marks, significantly improving the comfort of holding the device for extended gaming sessions and reducing hand fatigue. At the same time, the differentiated chamfer radius setting makes the force distribution on the edge of the pressing surface 125 more reasonable, allowing users to obtain clearer pressing feedback and improving the accuracy of operation.

[0033] Please continue reading. Figure 2 In some embodiments, the remaining chamfer structure 12 includes a second chamfer structure 112, which is located on the pressing surface 125 near the inner side of the game device 100 and near the lower end 132. The second chamfer structure 112 has a second chamfer radius R2, wherein the first chamfer radius R1 is greater than the second chamfer radius R2.

[0034] The second chamfer structure 112 is located in the diagonal area of ​​the pressing surface 125, and is located at the two diagonal corners of the pressing surface 125, which are the same as the first chamfer structure 111. When the user holds the game device 100 normally and operates the back button structure 120, this is not the area where the fingers mainly contact and exert force. The finger contact area, pressing frequency and local force load are significantly lower than the first chamfer structure 111 at the upper outer end.

[0035] The second chamfer structure 112 has a second chamfer radius R2. By limiting the first chamfer radius R1 to be larger than the second chamfer radius R2, a clear dimensional difference is formed between the two diagonal chamfer structures of the pressing surface 125. Differentiated designs are made for different usage scenarios and force characteristics. The first chamfer structure 111 uses a larger first chamfer radius R1, which can form a smooth curved transition in areas of high-frequency finger contact and continuous force, eliminating the discomfort caused by hard edges and adapting to the needs of long-term gaming operations. The second chamfer structure 112 uses a smaller second chamfer radius R2, which can maximize the preservation of the effective pressing area of ​​the pressing surface 125, ensuring the accuracy of finger positioning during pressing and avoiding the reduction of the operating area and the displacement of the pressing point due to an excessively large chamfer. It also strengthens the structural rigidity of the chamfer position, improving the overall deformation resistance and service life of the back button structure 120.

[0036] Therefore, by setting up a layout with different sizes for the diagonal chamfered structure, and taking into account the actual usage conditions of each corner of the back button structure 120, the overall structural strength and effective operating area of ​​the back button structure 120 are improved while ensuring the grip comfort of the main operating area. This makes the structural design of the back button structure 120 more compatible with actual usage needs, and further enhances the user experience of the gaming device 100.

[0037] Please refer to the following: Figure 3 and Figure 4 , Figure 3 This is another schematic diagram of the back key structure in some embodiments of this application. Figure 4This is another structural schematic diagram of the back key structure in some embodiments of this application. In some embodiments, the back key structure 120 further includes an outer peripheral sidewall 160, which is integrally formed with the pressing surface 125. The end of the outer peripheral sidewall 160 away from the pressing surface 125 is provided with a first apex structure 121 and a second apex structure 122 corresponding to the first chamfer structure 111 and the second chamfer structure 112, respectively. The first chamfer structure 111 has a first edge midpoint A, and the first apex structure 121 has a first apex vertex a. There is a first distance L1 between the first edge midpoint A and the first apex vertex a. The second chamfer structure 112 has a second edge midpoint B, and the second apex structure 122 has a second apex vertex b. There is a second distance L2 between the second edge midpoint B and the second apex vertex b. The second distance L2 is greater than the first distance L1.

[0038] The outer peripheral sidewall 160 and the pressing surface 125 are integrally molded, forming a whole. This effectively improves the integrity and structural strength of the back key structure 120, preventing problems such as loosening and cracking that may occur after long-term reciprocating motion of a separate structure. The outer peripheral sidewall 160 extends downward from the circumferential edge of the pressing surface 125. The end of the outer peripheral sidewall 160 away from the pressing surface 125 is the bottom end of the back key structure 120. At this bottom end, a first apex structure 121 and a second apex structure 122 are respectively formed on the first chamfer structure 111 and the second chamfer structure 112. The two apex structures correspond to the two sets of chamfer structures, forming a one-to-one correspondence layout.

[0039] Specifically, the first chamfer structure 111 has a first edge midpoint A on its contour edge, and the corresponding first apex structure 121 has a first apex vertex a. The straight-line distance between these two points is defined as the first distance L1. Similarly, the second chamfer structure 112 has a second edge midpoint B on its contour edge, and the corresponding second apex structure 122 has a second apex vertex b. The straight-line distance between these two points is defined as the second distance L2. The midpoint corresponds to the center position of the chamfer structure, and the vertex corresponds to the center position of the apex structure. The measurement path fits the mating surface of the outer peripheral sidewall 160, accurately reflecting the actual mating state between the back key structure 120 and the mounting groove 110. This ensures that the distance parameters match the assembly requirements and avoids problems such as loose assembly or pressing jamming caused by unreasonable distance definitions.

[0040] When holding and operating the gaming device 100, the area where the first chamfered structure 111 is located is where the user's fingers mainly contact and press. A smaller first distance L1 is set accordingly to provide sufficient assembly space for the first chamfered structure 111, avoiding collision and interference between the chamfered structure and the wall of the mounting groove 110, and adapting to the needs of high-frequency operation. The area where the second chamfered structure 112 is located has a lower frequency of finger contact and force application, and a larger second distance L2 is adopted. The larger distance can provide sufficient activity space for the back button structure 120 to reciprocate along the pressing direction, avoiding interference between the second chamfered structure 112, the second apex structure 122 and the wall of the mounting groove 110 when the back button structure 120 is pressed, ensuring a smooth and uninterrupted pressing process, and at the same time dispersing the pressing stress in this part to avoid structural wear caused by stress concentration.

[0041] Therefore, by setting unequal distance parameters, first distance L1 and second distance L2, at two diagonal positions, different spacing settings can be made for different areas according to different force characteristics. This ensures the pressing feel and control sensitivity of the main operation position, while strengthening the structural support performance of other areas. This makes the shape and mechanical structure of the back key structure 120 more compatible with actual usage scenarios, further improving the user experience of the back key structure.

[0042] Please continue reading. Figure 1 The upper end 131 of the gaming device 100 defines a first reference surface 133, which is a tangent plane that is tangent to the upper end 131 of the gaming device 100. The pressing surface 125 is perpendicular to the first reference surface 133.

[0043] The first reference plane 133 is a tangent plane formed in space by the contour of the upper end 131. This tangent plane can be formed by selecting the plane position of the straight section of the upper end 131, or by selecting the tangent plane at any position on the transition arc surface of the upper end 131. For example, if the upper end 131 is a straight structure, the straight surface of the upper end 131 can be directly used as the first reference plane 133; if the upper end 131 is an arc transition structure, the tangent plane at any position on its arc surface is selected as the first reference plane 133, and this is used as a reference.

[0044] The setting of the pressing surface 125 perpendicular to the first reference surface 133 means that the overall spatial posture of the pressing surface 125 is orthogonal to the upper end 131 of the gaming device 100. Since the back button structure 120 reciprocates along the normal direction of the pressing surface 125, and the pressing direction is perpendicular to the pressing surface 125, the perpendicular alignment between the pressing surface 125 and the first reference surface 133 further constrains the movement trajectory of the back button structure 120, ensuring that its reciprocating motion direction remains regular and uniform relative to the overall posture of the gaming device 100.

[0045] Meanwhile, this vertical layout fits the hand posture of the user when holding the game device 100. When the fingers naturally rest and apply pressure, the direction of force can be basically consistent with the movement direction of the back button structure 120, the force transmission is smoother, the pressing stroke is stable, the button feedback is uniform, the operation feel is improved, and the structural wear caused by force misalignment can be reduced, thus extending the overall service life of the back button structure 120 and the game device 100.

[0046] Please continue reading. Figure 3 and Figure 4 In some embodiments, the remaining chamfer structure 12 further includes a third chamfer structure 113 and a fourth chamfer structure 114. The third chamfer structure 113 is located on the pressing surface 125 near the outer side of the game device 100 and near the lower end 132, and the fourth chamfer structure 114 is located on the pressing surface 125 near the inner side of the game device 100 and near the upper end 131. The third chamfer structure 113 has a third chamfer radius R3, and the fourth chamfer structure 114 has a fourth chamfer radius R4. The first chamfer radius R1 is greater than the second chamfer radius R2, the third chamfer radius R3, and the fourth chamfer radius R4, respectively.

[0047] The third chamfer structure 113 and the fourth chamfer structure 114, together with the first chamfer structure 111 and the second chamfer structure 112, are distributed at the four corners of the pressing surface 125, forming a complete circumferential chamfer layout. The third chamfer structure 113 is located at the corner of the pressing surface 125 near the outer side of the game device 100 and near the lower end 132, while the fourth chamfer structure 114 is located at the corner of the pressing surface 125 near the inner side of the game device 100 and near the upper end 131. The four chamfer structures correspond to the four diagonal areas of the pressing surface 125, and their positions are clearly and regularly defined.

[0048] Specifically, when the back key structure 120 includes four chamfer structures, the first chamfer structure 111 is located at the top of the outer side of the pressing surface 125, and the second chamfer structure 112, which is diagonally opposite to it, is located at the bottom of the inner side of the pressing surface 125; the third chamfer structure 113 is located at the bottom of the outer side of the pressing surface 125, and the fourth chamfer structure 114, which is diagonally opposite to it, is located at the top of the inner side of the pressing surface 125, and the two are diagonally corresponding; the four chamfer structures are connected continuously from beginning to end in the order of first chamfer structure 111 to third chamfer structure 113 to second chamfer structure 112 to fourth chamfer structure 114 and back to first chamfer structure 111, forming a complete annular transition structure that fully surrounds the circumferential edge of the pressing surface 125, realizing a full circumferential arc transition of the circumferential edge of the pressing surface 125.

[0049] The end of the first chamfered structure 111 is smoothly connected to the beginning of the third chamfered structure 113, the end of the third chamfered structure 113 is smoothly connected to the beginning of the second chamfered structure 112, the end of the second chamfered structure 112 is smoothly connected to the beginning of the fourth chamfered structure 114, and the end of the fourth chamfered structure 114 is smoothly connected to the beginning of the first chamfered structure 111, forming a closed ring structure. No matter where the user's hand touches the edge of the pressing surface, a consistent and comfortable touch can be obtained, avoiding the situation of local sharp edges hurting the hand.

[0050] Specifically, the first chamfer radius R1 is larger than the second chamfer radius R2, the third chamfer radius R3, and the fourth chamfer radius R4. In actual use, the first chamfer structure 111 is located in the area where the user's fingers most frequently contact and experience the greatest continuous pressure when holding the gaming device 100. Using a larger first chamfer radius R1 can create a smooth curved transition, completely eliminating the pressure caused by the sharp corners and ensuring grip comfort during long-term operation. The other three corners, where the third chamfer structure 113, the fourth chamfer structure 114, and the second chamfer structure 112 are located, have significantly lower finger contact frequency and contact pressure, so smaller chamfer radii are used uniformly.

[0051] Therefore, by designing a differentiated chamfer radius, the pressing surface 125 can be optimized with a large chamfer only in the main force-bearing areas, while the remaining chamfer positions retain a small chamfer shape. This maximizes the effective operating area of ​​the pressing surface 125, ensuring the positioning accuracy when the user presses the button and avoiding the problem of reduced operating area due to excessively large overall chamfer size. In addition, a smaller chamfer radius can improve the structural rigidity of each corner, enhance the overall resistance to deformation and wear of the back key structure 120, and delay structural aging.

[0052] In addition, the four chamfered structures enclose the circumferential edge of the pressing surface 125, completely eliminating all sharp edges and corners. This allows for a smooth, rounded transition in areas with different hand contact frequencies, effectively relieving hand fatigue during prolonged use and preventing discomfort such as hand chafing or pressure marks, thus significantly improving the gaming experience.

[0053] Please continue reading. Figure 3 and Figure 4In some embodiments, the outer peripheral sidewall 160, away from the pressing surface 125, is provided with a third apex structure 123 and a fourth apex structure 124 corresponding to the third chamfer structure 113 and the fourth chamfer structure 114, respectively; wherein, the third chamfer structure 113 has a third edge midpoint C, the third apex structure 123 has a third apex vertex c, and there is a third distance L3 between the third edge midpoint C and the third apex vertex c; the fourth chamfer structure 114 has a fourth edge midpoint D, the fourth apex structure 124 has a fourth apex vertex d, and there is a fourth distance L4 between the fourth edge midpoint D and the fourth apex vertex d; wherein, the second distance L2 is greater than the first distance L1, the third distance L3 and the fourth distance L4, respectively, and the second distance L2, the first distance L1, the third distance L3 and the fourth distance L4 decrease sequentially.

[0054] The outer peripheral sidewall 160, on the side furthest from the bottom of the pressing surface 125, corresponding to the lower position of the third chamfer structure 113 and the fourth chamfer structure 114, is respectively provided with a third apex structure 123 and a fourth apex structure 124. The third apex structure 123 and the fourth apex structure 124 correspond one-to-one with the first apex structure 121 and the second apex structure 122, respectively, and are arranged to correspond to the chamfer structures of the four corners of the pressing surface 125. This ensures that the bottom contour of the back key structure 120 and the chamfer contour of the top pressing surface 125 form an overall structural layout with vertical alignment, guaranteeing that the overall shape of the back key structure 120 is regular and the structural stress is balanced.

[0055] Specifically, the arc-shaped chamfered edge of the third chamfered structure 113 is provided with a third edge midpoint C, and the vertex position of the third apex structure 123 directly below it is set as the third apex vertex c. The straight-line distance between the third edge midpoint C and the third apex vertex c is defined as the third distance L3. The arc-shaped chamfered edge of the fourth chamfered structure 114 is provided with a fourth edge midpoint D, and the vertex position of the fourth apex structure 124 directly below it is set as the fourth apex vertex d. The straight-line distance between the fourth edge midpoint D and the fourth apex vertex d is defined as the fourth distance L4.

[0056] The specific dimensional relationship between the first distance L1, the second distance L2, the third distance L3, and the fourth distance L4 is as follows: the second distance L2 is greater than the first distance L1, the third distance L3, and the fourth distance L4, respectively, and the overall relationship is a decreasing gradient of second distance L2 > first distance L1 > third distance L3 > fourth distance L4. This results in different vertical heights at the four corners of the pressing surface 125 from the top chamfer structure to the bottom corner structure, forming a vertical height layout that gradually decreases from the inner lower corner, the outer upper corner, the outer lower corner, to the inner upper corner.

[0057] Among them, the first chamfered structure 111 has the largest first chamfer radius R1, which corresponds to the part of the pressing surface 125 that is frequently contacted by the hand, and its corresponding first distance L1 is in the middle of the gradient; the second chamfered structure 112 has the largest second distance L2, the fourth chamfered structure 114 has the smallest fourth distance L4, and the third chamfered structure 113 has the second to last distance L3 in the gradient. This gradient distribution is adapted to the position of the four chamfered structures, the size of the chamfer radius, and the user's grip and pressing habits.

[0058] Specifically, the second distance L2 is set to the maximum, corresponding to the maximum spacing between the second chamfer structure 112 and the second apex structure 122. Since the second chamfer structure 112 corresponds to the lower inner end of the pressing surface 125, this position is the main part of the force transmission when the back key structure 120 is pressed. The larger spacing can provide sufficient space for the reciprocating movement of the back key structure 120 along the pressing direction, avoiding interference between the second chamfer structure 112, the second apex structure 122 and the groove wall of the mounting groove 110 when the back key structure 120 is pressed, ensuring a smooth and uninterrupted pressing process, and at the same time dispersing the pressing stress in this part to avoid structural wear caused by stress concentration.

[0059] The first distance L1 is set to be the second largest distance L2, corresponding to the spacing between the first chamfer structure 111 and the first apex structure 121. Since the first chamfer structure 111 is a high-frequency contact part of the hand and has the largest first chamfer radius R1, the moderately large first distance L1 can provide sufficient assembly space for the first chamfer structure 111, avoid collision and interference between the chamfer structure and the wall of the mounting groove 110, ensure the assembly stability of this part, and prevent the back key from becoming loose in this part due to excessive spacing. At the same time, it adapts to the smooth transition of the first chamfer structure, taking into account both the comfort of hand contact and the assembly stability.

[0060] The third distance L3 is less than the first distance L1 and greater than the fourth distance L4, corresponding to the spacing between the third chamfer structure 113 and the third apex structure 123. The chamfer radius R3 of the third chamfer structure 113 is less than the first chamfer radius R1, and it corresponds to the outer bottom position of the pressing surface 125. The frequency of hand contact and the pressing force at this part are less than those at the part corresponding to the first chamfer structure 111. Therefore, a relatively small spacing is set to ensure the tightness of the assembly at this part, prevent the back key structure 120 from loosening, and make reasonable use of the space of the mounting slot 110 to achieve a compact design of the overall structure.

[0061] Among them, the fourth distance L4 is set to the minimum, which corresponds to the distance between the fourth chamfer structure 114 and the fourth apex structure 124. The chamfer radius of the fourth chamfer structure 114 is the smallest, and it corresponds to the inner top position of the pressing surface 125. This part is the part with the least force and the least hand contact when the back key structure 120 is pressed. The minimum distance can ensure the tightness of the assembly of this part to the maximum extent, and play an auxiliary limiting role for the back key structure 120 as a whole, so as to prevent the back key structure 120 from shifting during reciprocating motion, while not affecting the normal pressing activity of the back key.

[0062] Therefore, when the back key structure 120 is pressed, the force on different parts is different. The second chamfer structure 112 corresponds to the main part of the force transmission when pressed, so the largest second distance L2 is set. The fourth chamfer structure corresponds to the part with less force and does not need too much space to move, so the smallest distance L4 is set. This fits the law of pressing force, which can effectively avoid interference between parts, ensure the smooth reciprocating motion of the back key structure 120, and improve the stability when pressing, reducing shaking and jamming.

[0063] In some alternative implementations, the back button structure is located on the back of the gaming device and positioned close to the grip area of ​​the gaming device in the second direction of the eye. The grip area is located on the left and right sides of the gaming device for convenient gripping by the user. In actual use of the back button structure, by setting a decreasing gradient of second distance L2 > first distance L1 > third distance L3 > fourth distance L4, the pressing surface of the back button structure can be made approximately parallel to the plane of the grip area on its periphery. This ensures that when the user places their fingers on the pressing surface of the back button structure, there is no significant height difference between the fingertips and other fingers, allowing for a better grip on the gaming device.

[0064] In some embodiments, while maintaining the logical gradient distribution of the second distance L2 > first distance L1 > third distance L3 > fourth distance L4, the specific numerical specifications of the first distance L1, second distance L2, third distance L3, and fourth distance L4 can be adaptively adjusted according to different sizes and models of gaming devices 100. This allows the back button structure 120 to adapt to the shell shape, mounting slot size, and ergonomic grip requirements of different gaming devices 100. By defining a fixed gradient relationship between the distances, even with minor adjustments to the actual parameters of each distance, a reasonable circumferential fit gap between the back button and the mounting slot can be stably maintained. This effectively avoids accidental touches, sticking, and key jamming during back button use, while optimizing the button press travel and improving uneven press feedback. The structure has stronger versatility and adaptability.

[0065] In some embodiments, the gradient relationship between the first distance L1, the second distance L2, the third distance L3, and the fourth distance L4 can be specifically set according to the actual situation.

[0066] Please refer to the following: Figure 5 , Figure 5 This is another schematic diagram of the back key structure in some embodiments of this application. In some embodiments, the pressing surface 125 includes a first side 141, a second side 142, a third side 143, and a fourth side 144. The first side 141 and the third side 143 are arranged opposite to each other and parallel to each other along the first direction a, and the second side 142 and the fourth side 144 are arranged opposite to each other and parallel to each other along the second direction b. The first side 141, the second side 142, the third side 143, and the fourth side 144 form a quadrilateral outline. One side of the first chamfer structure 111 is tangent to the first side 141, and the other side is tangent to the second side 142.

[0067] The pressing surface 125 is formed by four sides to create a complete outer contour. The first side 141 and the third side 143 are arranged opposite each other along the first direction a, and the two sides are kept parallel to each other. The second side 142 and the fourth side 144 are arranged opposite each other along the second direction b, and the two are also parallel to each other. Thus, the first side 141, the second side 142, the third side 143, and the fourth side 144 together form a regular quadrilateral contour. The pressing surface 125 has a regular shape and clear boundaries, which also provides a clear contour basis for the layout of the chamfered structure at each corner.

[0068] The first chamfer structure 111 is located at the corner formed by the intersection of the first side 141 and the second side 142. This chamfer structure is an arc-shaped transition structure, with one arc surface tangent to the end contour of the first side 141 and the other arc surface tangent to the end contour of the second side 142. This tangential fit structure allows the first chamfer structure 111 to seamlessly connect with the two sides, ensuring a smooth transition of the corner of the pressing surface 125 from the straight side to the arc-shaped chamfer. The entire contour line is continuous and smooth, without any abrupt steps or other abrupt structures.

[0069] Therefore, the structure setting where one side of the first chamfer structure 111 is tangent to the first edge 141 and the other side is tangent to the second edge 142 eliminates the fine sharp edges at the junction of the side and the chamfer structure, further improving the smoothness when the fingers touch and slide, avoiding local scratches on the hands, and continuously optimizing the grip and pressing feel; and the continuous smooth contour structure can reduce stress concentration. During the repeated pressing and force application of the back button structure 120, the corner joint will not crack or wear aggravate due to stress concentration, effectively strengthening the structural stability of the corner area of ​​the pressing surface 125.

[0070] In addition, the quadrilateral structure with four parallel sides allows the overall structure and size of the pressing surface 125 to be more standardized and uniform, which facilitates molding during production and processing.

[0071] Please continue reading. Figure 5 In some embodiments, the mounting groove 110 has a square outline and includes a first groove edge 151 and a third groove edge 153 extending along the first direction a, and a second groove edge 152 and a fourth groove edge 154 extending along the second direction b; wherein the length of the first groove edge 151 and the third groove edge 153 is equal, and the length of the second groove edge 152 and the fourth groove edge 154 is equal.

[0072] The mounting groove 110 has a square outline, providing a regular and stable installation space for the assembly and reciprocating motion of the back key structure 120. Specifically, the mounting groove 110 has four groove sides defined corresponding to the orientation references of the first direction a and the second direction b: a first groove side 151 and a third groove side 153 extending along the first direction a, and a second groove side 152 and a fourth groove side 154 extending along the second direction b. The first groove side 151 and the third groove side 153, which are arranged opposite each other along the first direction a, have equal lengths, and the second groove side 152 and the fourth groove side 154, which are arranged opposite each other along the second direction b, have equal lengths, so that the mounting groove 110 as a whole forms two sets of square groove structures with equal opposite sides and regular outlines.

[0073] By setting the mounting groove 110 as a square structure with equal sides, the space inside the groove is made uniform and symmetrical, providing a suitable limiting and guiding space for the up-and-down reciprocating motion of the back key structure 120. Compared with irregularly shaped mounting grooves, the square structure can effectively prevent the back key structure 120 from shifting left and right, swinging or tilting during pressing and rebounding, ensuring that the back key structure 120 always moves in a straight line along the normal direction of the pressing surface 125, and the movement trajectory is more stable and smooth.

[0074] Meanwhile, the regular square mounting groove 110 can match the quadrilateral pressing surface contour of the back key structure 120, so that the circumferential gap of the back key structure 120 is uniform after assembly and the force distribution is balanced. Long-term high-frequency pressing is less likely to cause problems such as one-sided wear, misalignment and jamming, effectively improving the consistency of key operation and service life.

[0075] In some embodiments, the first groove edge 151 and the third groove edge 153 each have a first length W1, and the second groove edge 152 and the fourth groove edge 154 have a second length W2, wherein the difference between the first length W1 and the second length W2 is less than a preset difference.

[0076] In this design, the first direction a and the second direction b are two mutually perpendicular layout directions, corresponding to the horizontal and vertical extension dimensions of the mounting groove 110, respectively, to define the overall length and width dimensions of the mounting groove 110. The mounting groove 110 is defined by the first length W1 and the second length W2. By limiting the difference between the first length W1 and the second length W2 to less than a preset difference, the mounting groove 110 is made to approach a regular square structure, avoiding excessive differences in length and width dimensions that could result in a long, narrow, or irregularly shaped groove structure.

[0077] Thus, this design ensures that the internal space of the mounting groove 110 is evenly distributed and has a higher degree of matching with the outer contour dimensions of the back key structure 120, allowing the back key structure 120 to be stably contained within the mounting groove 110. Furthermore, the regular, nearly square structure of the mounting groove 110 better adapts to the chamfered structure arranged diagonally around the back key structure 120 and the matching relationship of the circumferential gradient distance, ensuring that the matching gap around the back key is uniform and consistent when the back key reciprocates in the pressing direction, effectively avoiding back key skewing, one-sided friction, and movement jamming.

[0078] Meanwhile, while keeping the length and width difference within the preset range, the actual values ​​of the first length W1 and the second length W2 can be reasonably adjusted according to the shell shape and internal space layout of different gaming devices 100, thereby improving the structural adaptability without changing the overall square structure and matching logic of the mounting slot 110.

[0079] In some embodiments, a soft rubber layer is provided on the pressing surface 125, the soft rubber layer extends along the edge of the pressing surface 125 and is respectively connected to the first chamfer structure 111 and the remaining chamfer structures 12.

[0080] The soft rubber layer fully covers the surface area of ​​the pressing surface 125. It can be made of a flexible, non-slip material, allowing direct soft contact with the user's fingers. Compared to a hard button surface, it can effectively reduce the hardness of the pressing contact, buffer the pressing impact, and improve the softness of the touch and the pressing feel.

[0081] The soft adhesive layer is not limited to the central area of ​​the pressing surface 125, but extends continuously outward along the circumferential edge of the pressing surface 125, and smoothly connects and adheres to the first chamfer structure 111 and the remaining chamfer structures 12. The soft adhesive layer forms an integrated transition cover through the arc shape of each chamfer structure, naturally conforming to the arc curvature of the chamfer structure without obvious steps or curling edges. This ensures the continuity and integrity of the overall surface of the pressing surface 125, and further weakens the hard feel of the chamfer edges by utilizing the flexibility of the soft adhesive itself.

[0082] Thus, the soft rubber layer works in conjunction with the differentiated chamfered structure to form a gentle arc covering at the first chamfered structure 111 with a large radius, further alleviating the soreness and pressure caused by long-term contact and pressure with the hand; the remaining chamfered structures maintain a smooth transition, avoiding edge friction and scratching of the skin. In addition, the soft rubber layer also has anti-slip and wear-resistant properties, which can increase the contact friction between the fingers and the pressing surface 125, preventing finger slippage during operation and causing problems such as accidental touches and button malfunctions, thereby improving the stability of operation.

[0083] Please see Figure 6 , Figure 6 This is another structural schematic diagram of a game device in some embodiments of this application. In some embodiments, the game device 200 includes a device body 210 and at least one back button structure 120 as described in any of the foregoing embodiments, wherein the back button structure 120 is disposed on the device body 210.

[0084] The back button structure 120 is fixedly assembled at a preset installation position on the main body 210 of the device, forming an auxiliary button operation structure for the game device 200. The main body 210 is the supporting base of the game device 200, used to support and fix the back button structure 120 and other functional structures, providing a reliable installation foundation and structural support for the stable installation and reciprocating pressing motion of the back button structure 120.

[0085] The device body 210 has a matching mounting slot 110 corresponding to the mounting position of the back button structure 120. The back button structure 120 is installed inside the mounting slot 110. Based on the limiting and guiding function of the mounting slot 110, the back button structure 120 can make stable reciprocating motion along the normal direction of the pressing surface 125 under the action of external force, realizing the button triggering and rebound reset functions. Based on the differentiated chamfer setting and gradient distance setting of the back button structure 120, the gaming device 200, in addition to having the conventional back button touch operation function, further optimizes the fit and comfort of the user's grip operation.

[0086] Please refer to the following: Figure 6 and Figure 7 , Figure 7 for Figure 6 In the enlarged structural schematic diagram at point A, in some embodiments, the gaming device 200 further includes an inner mounting slot 230 and an inner back button structure 220 mounted in the inner mounting slot 230, wherein the inner mounting slot 230 of the inner back button structure 220 and the mounting slot 110 of the back button structure 120 have a height difference d in the first direction.

[0087] Wherein, the first direction a is the vertical extension direction from the upper end 131 to the lower end 132 of the game device 100 in its natural placement state; the height difference d refers to the vertical offset distance of the respective reference layout planes of the mounting groove 110 and the inner mounting groove 230 in the first direction a. By setting this height difference d, the inner back key structure 220 on the inner side and the outer back key structure 120 on the outer side are arranged in a staggered distribution in the first direction a, rather than being flush.

[0088] Among them, such as Figure 6 and Figure 7 As shown, the inner mounting groove 230 of the inner back key structure 220 is higher than the mounting groove 110 of the outer back key structure 120 by a height difference d in the first direction a. Taking the first direction a as a reference when the game device 100 is in its natural placement state, the inner mounting groove 230 located inside the game device 100 is positioned higher in the first direction a; the mounting groove 110 located outside it is positioned lower in the first direction a. The two are staggered vertically, forming a fixed vertical drop distance, which is the height difference d.

[0089] Therefore, when a user holds the gaming device 100, the different operating fingers naturally have different vertical positions. Utilizing the height difference d, the back button structure 120 and the inner back button structure 220 are respectively adapted to the natural landing points of different fingers, allowing them to naturally fit the corresponding pressing surfaces without deliberately bending or moving the fingers. This avoids the problem of cramped finger placement and mutual interference when different types of back button structures are arranged side by side, and also allows each finger to independently correspond to a back button operation position, with clear division of labor and no interference between them.

[0090] Meanwhile, a height difference d is set on the first direction a to separate the operation areas of different back button structures, avoiding mutual interference when the fingers are operating and reducing the probability of accidental touch; and the staggered layout optimizes the space utilization of the game device 100, with a clear overall layer and neat layout. While ensuring the control functionality, it also enhances the sense of layering and overall shape of the back appearance of the game device 100.

[0091] In some embodiments, while maintaining the structural configuration where the height of the inner back button structure 220 is higher than that of the outer back button structure 120, the specific value of the vertical height difference d can be flexibly adjusted according to the different sizes of gaming devices 100 (large, medium, and small). For large gaming devices 100, the height difference d can be appropriately increased to accommodate the grip habits of users with larger hands and longer finger spans; for medium-sized gaming devices 100, a standard height difference d is used to accommodate most common hand sizes; and for small gaming devices 100, the height difference d is correspondingly decreased to accommodate the hand-touching posture of users with smaller hands and shorter fingers.

[0092] Therefore, by making adaptive minor adjustments only to the height difference in the first direction a without changing the relative position, structural form and assembly relationship of the inner back key structure 220 and the outer back key structure 120, it is possible to cover users of different game device models 100, different hand sizes and different finger lengths.

[0093] In some embodiments, the mounting groove 110 of the outer back key structure 120 can be higher than the inner mounting groove 230 of the inner back key structure 220 in the first direction a by a height difference d. That is, the vertical mounting position of the mounting groove 110 is shifted upward, and the position of the inner mounting groove 230 is relatively shifted downward, so that the overall center height of the outer back key structure 120 is higher than that of the inner back key structure 220, thus forming a fixed height difference d in the vertical direction, achieving a staggered, non-flush layout. This can also adapt to user groups with different hand sizes, different finger force habits, and different grip gestures, meeting diverse ergonomic adaptation needs.

[0094] Please continue reading. Figure 6In some embodiments, the at least one back key structure 120 includes a first back key structure 120a and a second back key structure 120b, wherein the first back key structure 120a and the second back key structure 120b are symmetrically mounted on opposite sides of the device body 210 in the second direction b.

[0095] In this context, the second direction b refers to the left-right horizontal direction of the gaming device 100. The first back button structure 120a and the second back button structure 120b are arranged symmetrically with the center plane of the device as the reference. When the user holds the gaming device 100 with both hands on either side, the left hand fingers can naturally touch the first back button structure 120a, and the right hand fingers can naturally touch the second back button structure 120b. The installation position, shape, and tilt angle of the back buttons on both sides are completely consistent, and the force angle, pressing stroke, and contact position of the left and right fingers are basically uniform.

[0096] Therefore, the symmetrical back button structure enables independent operation with both hands. Each hand can operate the back buttons on the same side, allowing for multi-command parallel operation and expanding the operational scope. Furthermore, the back button structure and installation posture on both sides are identical, resulting in no difference in feel between left and right hand operation. Users do not need to adapt to the different button pressing characteristics, leading to better operational continuity.

[0097] Meanwhile, the symmetrical arrangement ensures that the force is evenly distributed on both sides of the gaming device, preventing any shift in the center of gravity during gripping and operation, thus further improving grip stability.

[0098] Please continue reading. Figure 6 In some embodiments, the inner back key structure 220 includes a first inner back key structure 220a and a second inner back key structure 220b, wherein the first inner back key structure 220a is disposed on the device body at a position inside the first back key structure 120a, and the second inner back key structure 220b is disposed on the device body at a position inside the second back key structure 120b.

[0099] The inner back key structure 220 is specifically divided into a first inner back key structure 220a and a second inner back key structure 220b. Looking along the second direction b, which is the left-right extension direction of the device, the first inner back key structure 220a is arranged on the inner side of the first back key structure 120a on the device body 210, and the second inner back key structure 220b is arranged on the inner side of the second back key structure 120b on the device body 210. The two sets of inner back keys also form a left-right corresponding layout with the outer back keys.

[0100] The outer first back button structure 120a and second back button structure 120b, and the inner first inner back button structure 220a and second inner back button structure 220b are arranged in layers, forming two sets of inner and outer button units on the left and right sides of the device body 210, respectively. This fully utilizes the installation space on the back of the device to achieve partitioned expansion of button functions. The staggered installation method conforms to the finger distribution pattern when a user holds the game device 200. When the user holds the device, different fingers can naturally correspond to touch the outer back button and the inner inner back button respectively, and the operation of each button does not interfere with each other, which facilitates complex game commands such as multi-button combination triggering and combo operations. At the same time, the partitioned structure of the inner and outer buttons can reasonably divide the operating area and force range of each button, avoiding the problems of space congestion and frequent accidental touches caused by the concentrated arrangement of multiple buttons.

[0101] Please continue reading. Figure 6 In some embodiments, the device further includes a button structure 240, which is disposed at the upper end 250 of the game device 200. The upper end 250 is the side close to the upper end of the game device 200 along the first direction a. The button structure 240 has a first mounting center line C1, and the back button structure 120 has a second mounting center line C2. The first mounting center line C1 and the second mounting center line C2 are parallel.

[0102] The button structure 240 is provided with a first mounting center line C1, which can be understood as a center reference line laid out along the length extension direction of the button structure 240, used to define the central mounting position and overall layout of the upper button structure 240; correspondingly, the back button structure 120 is provided with a second mounting center line C2, which is also laid out along the overall extension direction of the back button structure 120, serving as the center reference for the assembly and alignment of the back button structure 120.

[0103] The first installation center line C1 and the second installation center line C2 are parallel to each other, so that the button structure 240 located on the upper part 250 of the device and the back button structure 120 located on the back of the device have the same arrangement direction. Their spatial tilt posture and extension direction are aligned and unified, so that the function buttons set on the game device 200 are arranged in a regular and uniform manner.

[0104] Therefore, the unified button layout is highly compatible with the user's hand operation habits. When the user alternately presses the upper button structure 240 and the back button structure 120, the finger movement trajectory follows the button layout direction, making the operation transition smoother and more continuous, and improving the fluency of multi-finger operation. In addition, the regular and parallel reference layout can effectively unify the assembly reference of the buttons of the whole machine, reduce production assembly deviation, and improve the regularity and appearance consistency of the overall structure of the game device 200.

[0105] Specifically, such as Figure 6 As shown, the button structure 240 includes a first button structure 240a and a second button structure 240b. The first button structure 240a and the second button structure 240b are arranged sequentially along the second direction b on the upper end 250 of the game device 200. The installation center line C1 of both extends towards the center line of the game device 200, so that the button structure of the upper end 250 forms an arrangement facing the center of the device, which is consistent with the left and right symmetrical structural design of the whole machine, and the overall layout is coordinated and neat.

[0106] In actual operation, this setting can match the natural extension angle of the user's fingers when holding the device, making the finger pressing action more relaxed and effortless, and effectively reducing hand fatigue caused by long-term operation.

[0107] In this design, the mounting center line of the first button structure 240a is parallel to the mounting center line of the first back button structure 120a, and the mounting center line of the second button structure 240b is also parallel to the mounting center line of the second back button structure 120b. This one-to-one parallel layout ensures that the button structures and back button structures on the same side of the device maintain the same extension angle and spatial orientation. When users operate the button structures and back button structures on the same side simultaneously, their fingers do not need to frequently adjust the angle of force, resulting in a more natural and fluid motion.

[0108] In the above embodiments, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. The embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. Furthermore, for those skilled in the art, based on the ideas of this application, there will be changes in specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the above embodiments should be included within the protection scope of the technical solution.

Claims

1. A back button structure, installed in a gaming device, characterized in that, The gaming device is provided with a mounting slot, and the back button structure is installed in the mounting slot. The back button structure can reciprocate in the mounting slot along the pressing direction under the action of external force. The gaming device has a first direction and a second direction. The first direction is the vertical extension direction of the gaming device, and the second direction is the horizontal extension direction of the gaming device. The side away from the central axis of the gaming device along the second direction is the outer side, and the side closer to the central axis of the gaming device is the inner side. The side closer to the upper end of the gaming device along the first direction is the upper end, and the side closer to the lower end of the gaming device is the lower end. The back button structure includes a pressing surface, and the circumferential edge of the pressing surface is provided with a chamfer structure. The chamfer structure includes a first chamfer structure, which is located on the pressing surface near the outside of the gaming device and near the upper end. The first chamfer structure has a first chamfer radius, which is greater than the chamfer radius of the other chamfer structures on the pressing surface.

2. The back key structure according to claim 1, characterized in that, The remaining chamfer structure includes a second chamfer structure, which is located on the pressing surface near the inner side of the gaming device and near the lower end. The second chamfer structure has a second chamfer radius, wherein the first chamfer radius is greater than the second chamfer radius.

3. The back key structure according to claim 2, characterized in that, The back key structure also includes an outer peripheral sidewall, which is integrally formed with the pressing surface. The end of the outer peripheral sidewall away from the pressing surface is provided with a first apex structure and a second apex structure respectively corresponding to the first chamfer structure and the second chamfer structure. The first chamfer structure has a first edge midpoint, the first apex structure has a first apex vertex, and there is a first distance between the first edge midpoint and the first apex vertex; the second chamfer structure has a second edge midpoint, the second apex structure has a second apex vertex, and there is a second distance between the second edge midpoint and the second apex vertex; wherein the second distance is greater than the first distance.

4. The back key structure according to claim 1, characterized in that, The upper end of the gaming device defines a first reference surface, which is a tangent plane that is tangent to the upper end of the gaming device, wherein the pressing surface is perpendicular to the first reference surface.

5. The back key structure according to claim 3, characterized in that, The remaining chamfer structures also include a third chamfer structure and a fourth chamfer structure. The third chamfer structure is located on the pressing surface near the outer side of the game device and near the lower end. The fourth chamfer structure is located on the pressing surface near the inner side of the game device and near the upper end. The third chamfer structure has a third chamfer radius, and the fourth chamfer structure has a fourth chamfer radius. The first chamfer radius is greater than the second chamfer radius, the third chamfer radius, and the fourth chamfer radius, respectively.

6. The back key structure according to claim 5, characterized in that, The outer peripheral sidewall, away from the pressing surface, is provided with a third apex structure and a fourth apex structure corresponding to the third chamfer structure and the fourth chamfer structure, respectively; wherein, the third chamfer structure has a third edge midpoint, the third apex structure has a third apex vertex, and there is a third distance between the third edge midpoint and the third apex vertex; the fourth chamfer structure has a fourth edge midpoint, the fourth apex structure has a fourth apex vertex, and there is a fourth distance between the fourth edge midpoint and the fourth apex vertex; The second distance is greater than the first distance, the third distance, and the fourth distance, respectively, and the second distance, the first distance, the third distance, and the fourth distance decrease sequentially.

7. The back key structure according to claim 1, characterized in that, The pressing surface includes a first side, a second side, a third side, and a fourth side. The first side and the third side are arranged opposite to each other along the first direction and are parallel to each other. The second side and the fourth side are arranged opposite to each other along the second direction and are parallel to each other. The first side, the second side, the third side, and the fourth side together form a quadrilateral outline. One side of the first chamfer structure is tangent to the first side, and the other side is tangent to the second side.

8. The back key structure according to claim 1, characterized in that, The mounting groove has a square outline and includes a first groove side and a third groove side extending along the first direction, and a second groove side and a fourth groove side extending along the second direction. Wherein, the lengths of the first groove edge and the third groove edge are equal, and the lengths of the second groove edge and the fourth groove edge are equal.

9. The back key structure according to claim 8, characterized in that, The first groove edge and the third groove edge each have a first length, and the second groove edge and the fourth groove edge each have a second length, wherein the difference between the first length and the second length is less than a preset difference.

10. The back key structure according to claim 1, characterized in that, A soft rubber layer is provided on the pressing surface, and the soft rubber layer extends along the edge of the pressing surface and is connected to the first chamfer structure and the remaining chamfer structures respectively.

11. A gaming device, characterized in that, It includes a device body and at least one back key structure as described in any one of claims 1-10, wherein the back key structure is disposed on the device body.

12. The gaming device according to claim 11, characterized in that, The gaming device also includes an inner mounting slot and an inner back button structure installed in the inner mounting slot, wherein the inner mounting slot of the inner back button structure and the mounting slot of the back button structure have a height difference in the first direction.

13. The gaming device according to claim 12, characterized in that, The mounting groove is located on the main body of the device, and the pressing direction is perpendicular to the surface where the mounting groove is located. The projection of the back key structure in the pressing direction is located within the mounting groove.

14. The gaming device according to claim 12, characterized in that, The at least one back key structure includes a first back key structure and a second back key structure, wherein, in the second direction, the first back key structure and the second back key structure are symmetrically mounted on opposite sides of the device body.

15. The gaming device according to claim 14, characterized in that, The inner back key structure includes a first inner back key structure and a second inner back key structure, wherein the first inner back key structure is located on the device body at a position inside the first back key structure, and the second inner back key structure is located on the device body at a position inside the second back key structure.

16. The gaming device according to claim 11, characterized in that, The gaming device further includes a button structure located at the upper end of the gaming device. The upper end is a side close to the upper part of the gaming device along the first direction. The button structure has a first mounting center line, and the back button structure has a second mounting center line. The first mounting center line and the second mounting center line are parallel.

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