Hinge assembly for eyeglasses and eyeglasses

Abstract

The application discloses a hinge assembly for glasses and glasses, and relates to the technical field of wearable devices. The hinge assembly comprises: a first fixing member, which is rotationally connected with a rotating member through a first rotating shaft; a second fixing member, which is rotationally connected with the rotating member through a second rotating shaft, and the first rotating shaft and the second rotating shaft are arranged in different axes; and a torsional spring, which is arranged between the first fixing member and the rotating member, and is used for providing an acting force opposite to the rotating direction of the rotating member for the first fixing member when the rotating member rotates around the first fixing member and the torsional spring is forced to twist. In the glasses provided by the application, the temple of the glasses is used for being hingedly connected to the frame through the hinge assembly, and the use of the hinge assembly can provide a relatively stable clamping force in the process of changing the glasses from an open state to an outward expansion, so that the glasses can be adapted to the use of users with different head circumferences, and the use experience of the users is improved.

Description

Technical Field

[0001] This application relates to the field of wearable device technology, and more particularly to a hinge assembly for eyeglasses and eyeglasses. Background Technology

[0002] With the development of smart wearable devices, smart wearable devices in the form of glasses, which integrate photography and display functions, are gaining increasing attention. Moreover, smart glasses, with their advantages of portability, ease of use, and rich functionality, have gradually evolved from a technological concept into a popular smart wearable consumer product.

[0003] Smart glasses typically integrate hardware such as an optical engine, battery, and chip to achieve related photography and display functions. They are heavier than ordinary optical glasses, and relying solely on the bridge of the nose for support makes them prone to slipping due to head movements (such as tilting or shaking the head). Therefore, the temples often need to clamp the user's head, forming a "three-point fixation" with the bridge of the nose to ensure the glasses remain stable during daily activities. However, due to individual differences in head circumference, temporal width, etc., existing glasses products have insufficient clamping force for users with small head circumferences, making them prone to shifting or even slipping during user activities. Conversely, they have excessive clamping force for users with large head circumferences, leading to discomfort when wearing glasses for extended periods. This makes the glasses unsuitable for all users. Utility Model Content

[0004] Embodiments of this application provide a hinge assembly for eyeglasses and eyeglasses, wherein the temples of the eyeglasses are hinged to the frame via the hinge assembly to provide a relatively stable clamping force for the user, so that the eyeglasses can be adapted to users with different head circumferences.

[0005] In a first aspect, this application provides a hinge assembly comprising: a first fixed member, a rotating member, a second fixed member, and a torsion spring; the first fixed member and the rotating member are rotatably connected via a first rotating shaft, and the second fixed member and the rotating member are rotatably connected via a second rotating shaft, wherein the first rotating shaft and the second rotating shaft are arranged on opposite axes; the torsion spring is disposed between the first fixed member and the rotating member, and the torsion spring is used to provide a force to the first fixed member opposite to the rotation direction of the rotating member when the rotating member rotates around the first fixed member and the torsion spring is subjected to torsion.

[0006] In this embodiment, the arrangement of the rotating component and the two rotating shafts separates the traditional first fixing component, which is rotatably connected to the second fixing component via a shared rotating shaft, into a structure where the first fixing component is rotatably connected to the rotating component via a first rotating shaft, and the second fixing component is rotatably connected to the rotating component via a second rotating shaft. This allows the first fixing component for connecting the temples and the second fixing component for connecting the frame to rotate relatively independently. Specifically, during the process of switching the glasses from an open state to a folded state, or from an open state to an outward-expanding state, the rotating shaft switches between the first and second rotating shafts. This simultaneously separates the damping force during the user's temple rotation from the clamping force of the temples on the user's head when wearing the glasses, allowing for independent control via the two rotating shafts.

[0007] Furthermore, by incorporating a torsion spring between the first fixed component and the rotating component, the torsion spring, when twisted, provides a force to the first fixed component that acts in the opposite direction to the rotation of the rotating component. This allows the clamping force of the temples connected to the first fixed component on the user's head to increase as the torsion angle of the torsion spring increases. Thus, when the temples of the glasses deform from an open state to an open state, the clamping force can be designed to remain within a range that provides a comfortable clamping force for the user. This ensures that the glasses can provide a stable and comfortable clamping force for users with different head sizes, enhancing the user experience.

[0008] In some embodiments, the torsion spring is sleeved on the first rotating shaft, and the torsion spring is used to twist around the first rotating shaft.

[0009] In this embodiment, by setting a torsion spring between the first fixing member and the rotating member, sleeved on the first rotating shaft, and designing the parameters of the torsion spring, when the torsion spring is subjected to force and twists around the first rotating shaft, it can not only provide the first fixing member with a force opposite to the rotation direction of the rotating member, that is, provide a clamping force on the user's head for the temple connected to the first fixing member, but also, by designing the parameters of the torsion spring, make the range of variation of the clamping force of the glasses within the range of clamping force that the user feels comfortable.

[0010] In some embodiments, the hinge assembly further includes a torsion spring fixing shaft, which is fixed to the rotating member and is arranged off-axis from the first rotating shaft and the second rotating shaft; the torsion spring is sleeved on the torsion spring fixing shaft and is used to twist around the torsion spring fixing shaft.

[0011] In this embodiment, by additionally setting a torsion spring fixing shaft in the hinge assembly, the torsion spring is sleeved on the torsion spring fixing shaft, making the torsion spring fixing shaft the rotation center of the torsion spring, thereby separating the rotation center of the torsion spring from the rotation center of the rotating component. As the outward expansion angle of the temple increases, when the rotating component rotates around the first fixing component, the change in the torsion angle of the torsion spring during the torsion process has a smaller impact on the clamping force, and the amount of change in the torsion angle of the torsion spring is reduced. This results in a smaller difference in the clamping force felt by users with different head circumferences when wearing glasses, thereby improving the stability of the clamping force.

[0012] In some embodiments, one end of the torsion spring is fixed to the rotating member, and the other end of the torsion spring abuts against the first fixing member.

[0013] In some embodiments, the torsion spring is torsioned by a predetermined angle to provide preload to the first fixing member.

[0014] In this embodiment, when the torsion spring is installed in the hinge assembly, one end of it is fixed to the rotating member and the other end abuts against the first fixing member. The torsion spring is pre-torsed at a predetermined angle so that the torsion spring can provide pre-pressure to the first fixing member. Thus, when the temples of the glasses are in the open state, the glasses can provide a certain clamping force for users with smaller head circumferences, preventing the glasses from shifting or even slipping during the user's activities.

[0015] In some embodiments, the second fixing member has a first shaft hole, and the rotating member has a second shaft hole; the second rotating shaft is used to insert into the first shaft hole and the second shaft hole, so that the second fixing member and the rotating member are interference-fitted through the second rotating shaft, so that when the rotating member rotates relative to the second fixing member, it provides the rotating member with a force opposite to the direction of rotation of the rotating member.

[0016] In this embodiment, when the second fixing member and the rotating member are interference-fitted through the second pivot, during the rotation of the second fixing member relative to the rotating member—that is, when the temple returns from the open state to the folded state, or when the temple unfolds from the folded state to the open state—a force opposite to the direction of rotation of the rotating member can be provided to the rotating member, thus forming a damping force. This allows the temple to remain at any position between the open and folded states during the user's temple rotation. Furthermore, the interference fit between the second fixing member and the rotating member through the second pivot provides damping force during the user's temple rotation, while the torsion spring provides clamping force on the user's head during the rotation of the rotating member around the first pivot. This separates the damping force and clamping force into independent control via the dual pivots, achieving a dual optimization of smooth and reliable folding of the glasses and user wearing comfort.

[0017] In some embodiments, the hinge assembly further includes a pressure plate disposed between the second fixed member and the rotating member, for providing an axial clamping force along the first axis of rotation to the second fixed member and the rotating member, so that the second fixed member and the rotating member are in an interference fit.

[0018] In some embodiments, the hinge assembly further includes a sleeve fitted onto the second pivot.

[0019] In some embodiments, the sleeve includes a limiting portion, and a rotating member and a second fixing member are rotatably mounted on the limiting portion.

[0020] In this embodiment, the limiting part can limit the sleeve along the orientation of the sleeve opening to the rotating member or the second fixed member, so that the sleeve is rotatably set with the rotating member and the second fixed member, thereby blocking the second rotating shaft set inside the sleeve, preventing the second rotating shaft from coming out of the opening, and improving the structural stability of the hinge assembly.

[0021] In some embodiments, the second fastener and the sleeve are provided with wire grooves.

[0022] In this embodiment, since the components in the frame are connected to the components in the temples via the hinge assembly through the flexible circuit board and wiring, the flexible circuit board and wiring are placed in the extended channel formed by the second fixing member and sleeve in the hinge assembly by opening a wiring groove. This can protect the safety of the flexible circuit board or wiring, thereby reducing the risk of damage during the use of the glasses, avoiding exposure of the flexible circuit board or wiring, and improving the aesthetics of the glasses where the hinge assembly is located.

[0023] Secondly, embodiments of this application provide eyeglasses, which include a frame, temples, and a hinge assembly as described in the first aspect, wherein the temples are hinged to the frame via the hinge assembly.

[0024] In this embodiment, the temples of the glasses are hinged to the frame via a hinge assembly. Since the temples of the glasses can be deformed from the open state to the expanded state, the clamping force of the glasses can be varied within the range of clamping force that the user feels comfortable by designing the parameters of the torsion spring in the hinge assembly. This allows the glasses to provide a stable and comfortable clamping force for users with different head sizes, thus improving the user experience.

[0025] In some embodiments, the first fixing member of the hinge assembly is fixedly connected to the temple of the mirror, and the second fixing member of the hinge assembly is fixedly connected to the frame.

[0026] In some embodiments, the first fastener of the hinge assembly is integrally formed with the temple, and the second fastener of the hinge assembly is integrally formed with the frame.

[0027] In this embodiment, the integrated design between the fastener in the hinge assembly and the frame or temple can reduce the number of parts in the glasses and simplify the assembly process.

[0028] In this embodiment, the beneficial effects of the second aspect can also be referred to the description of the first aspect and any of its implementations, which will not be repeated here. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a hinge assembly provided in an embodiment of this application;

[0030] Figure 2 for Figure 1 The first-person view of the provided hinge component;

[0031] Figure 3 This is a schematic diagram of the structure of a pair of glasses provided in an embodiment of this application;

[0032] Figure 4 for Figure 1 An exploded view of the provided hinge assembly;

[0033] Figure 5 This is a schematic diagram of another hinge assembly provided in an embodiment of this application;

[0034] Figure 6 for Figure 5 An exploded view of the provided hinge assembly;

[0035] Figure 7 This is a schematic diagram of the wiring of the hinge assembly provided in an embodiment of this application. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] In recent years, smart wearable devices in the form of glasses, which integrate photography and display functions, such as virtual reality (VR) glasses, augmented reality (AR) glasses, mixed reality (MR) glasses, Bluetooth glasses, and movie glasses, have received widespread attention and are gradually becoming more common. Compared to ordinary optical glasses, smart glasses add a camera for taking pictures and an optical engine (including waveguides and display modules) for near-eye display in the frame, and houses batteries, sensors, and chips in the temples to provide power and computing support, making smart glasses significantly heavier than ordinary glasses.

[0038] Because of individual differences in head circumference, temporal width, etc., related technologies use springs at the hinges connecting the frame and temples to ensure that the weighted glasses can fit different users and maintain a stable position during daily activities, so that the glasses can exert a clamping force on the user's head. Alternatively, the frame can deform to create an elastic clamping effect. That is, when the glasses are in an outward-expanding state, the spring deforms during the frame deformation process and generates a force opposite to the direction of temple rotation, so that the temples exert a clamping force on the user's head.

[0039] However, although the elastic force of a spring is linearly related to its displacement, the geometric relationship between the spring's displacement and the temple's outward expansion angle during the deformation of the frame is non-linear. Furthermore, spring deformation may be accompanied by inelastic deformations such as bending and shearing, causing the actual elastic force to deviate from the theoretical value. Thus, because the clamping force provided by the spring during frame deformation is difficult to quantify, the glasses may not provide adequate clamping force for users with smaller head circumferences, making them prone to shifting or slipping during activity. Conversely, they may require greater clamping force for users with larger head circumferences, leading to discomfort during prolonged wear. This results in glasses that are not suitable for all users.

[0040] To address the aforementioned issues, this application provides a hinge assembly in which the temples of the glasses are hinged to the frame. This assembly provides a relatively stable clamping force during the process of the glasses expanding outwards from an open state, allowing the glasses to be adapted to users with different head sizes and improving the user experience.

[0041] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0042] Please see Figures 1 to 2 , Figure 1 This is a schematic diagram of the structure of a hinge assembly 1 provided in an embodiment of this application. Figure 2 for Figure 1 The first-view view of the provided hinge component 1. (Example) Figure 1 As shown, the hinge assembly 1 provided in this application embodiment includes a first fixing member 10, a rotating member 20, a second fixing member 30, and a torsion spring 40.

[0043] In this embodiment, the first fixing member 10 and the rotating member 20 are rotatably connected by a first rotating shaft 11. Both the first fixing member 10 and the rotating member 20 have shaft holes, and the first rotating shaft 11 is inserted into the shaft holes of the first fixing member 10 and the rotating member 20, thus rotatably connecting the first fixing member 10 and the rotating member 20. The second fixing member 30 and the rotating member 20 are rotatably connected by a second rotating shaft 21, with the first rotating shaft 11 and the second rotating shaft 21 being arranged on opposite axes. That is, the rotating member 20 has at least two shaft holes, and the second fixing member 30 also has shaft holes. The second rotating shaft 21 is inserted into the shaft holes of the second fixing member 30 and into the shaft holes of the rotating member 20 that are not into which the first rotating shaft 11 is inserted, thus rotatably connecting the second fixing member 30 and the rotating member 20.

[0044] Please refer to details. Figure 1 The first rotating shaft 11 and the second rotating shaft 21 are inserted into different shaft holes on the rotating member 20. That is, the first rotating shaft 11 and the second rotating shaft 21 are two different shafts arranged in parallel on the rotating member 20, so that the hinge assembly 1 forms a multi-axis structure. At this time, the arrangement of the rotating member 20 and the two rotating shafts separates the traditional first fixing member 10, which is rotatably connected to the second fixing member 30 through a rotating shaft shared with the second fixing member 30, into a structure in which the first fixing member 10 is rotatably connected to the rotating member 20 through the first rotating shaft 11, and the second fixing member 30 is rotatably connected to the rotating member 20 through the second rotating shaft 21.

[0045] The hinge assembly 1 described above is used in the eyeglasses 2. Please refer to [link / reference]. Figure 3 , Figure 3 This is a schematic diagram of the structure of a pair of glasses 2 provided in an embodiment of this application. Figure 3 As shown, the eyeglasses 2 provided in this embodiment include a frame 201, temples 202, and a hinge assembly 1 provided in the above embodiment. The temples 202 are hinged to the frame 201 via the hinge assembly 1. The first fixing member 10 of the hinge assembly 1 is fixedly connected to the temples 202, and the second fixing member 30 of the hinge assembly 1 is fixedly connected to the frame 201.

[0046] In this embodiment, the hinge assembly 1 is also provided with a torsion spring 40. The torsion spring 40 is a spring that generates restoring torque through torsional deformation. It is mainly used to provide torque or preload for rotation around the axis. Based on the elastic deformation of the material, when the two ends of the torsion spring 40 are twisted around the axis by external force, elastic potential energy is stored inside. After the external force is removed, the spring is reset by the restoring torque driving component.

[0047] The torsion spring 40 in the hinge assembly 1 is disposed between the first fixed member 10 and the rotating member 20. When the rotating member 20 rotates around the first fixed member 10 and the torsion spring 40 is subjected to torsion, the torsion spring 40 provides the first fixed member 10 with a force opposite to the rotation direction of the rotating member 20. One end of the torsion spring 40 is fixed to the rotating member 20, and the other end of the torsion spring 40 abuts against the first fixed member 10. That is, one end of the torsion spring 40 is the fixed end, which engages with the rotating member 20 and is thus fixed relative to the rotating member 20. The other end of the torsion spring 40 is the force-applying end. The force-applying end of the torsion spring 40 contacts the first fixed member 10 through the abutting surface (such as a plane, boss, or groove) on the fixed member. When the rotating member 20 rotates around the first fixed member 10, the torsion spring 40 abuts against the force-applying end of the first fixed member 10 and is subjected to force, causing the torsion spring 40 to twist. The restoring torque (torque) generated by the deformation of the torsion spring 40 provides the first fixed member 10 with a force opposite to the rotation direction of the rotating member 20.

[0048] Additionally, the torsion spring 40 is twisted by a predetermined angle to provide preload to the first fixing member 10. Specifically, when the torsion spring 40 is installed in the hinge assembly 1, with one end fixed to the rotating member 20 and the other end abutting against the first fixing member 10, the torsion spring 40 is pre-twisted by a predetermined angle, and the direction of torsion of the torsion spring 40 is as follows: Figure 1 The direction in which the arrow with the thickened solid line points indicates that the torsion spring 40 stores elastic potential energy. The torque generated by the deformation of the torsion spring 40 is transmitted to the first fixing member 10 through the other end of the torsion spring 40, forming a pre-pressure along the normal direction of the abutment surface, so that the two are kept in a tight abutment state (such as the clamping force of the temple 202 on the head).

[0049] In this embodiment, the first rotating shaft 11 and the second rotating shaft 21 are two different shafts parallel to each other on the rotating member 20. The first fixing member 10 is fixedly connected to the temple 202, and the second fixing member 30 is fixedly connected to the frame 201. Simultaneously, one end of the torsion spring 40 is fixed to the rotating member 20, and the other end of the torsion spring 40 abuts against the first fixing member 10. When the glasses 2 switch from an open state to a folded state, because the torsion spring 40 abuts against the first fixing member 10, the rotation of the temple 202 is actually the rotation of the rotating member 20 around the second fixing member 30 connected to the frame 201 via the second rotating shaft 21, providing damping force to the user during the rotation of the temple 202. Alternatively, when the glasses 2 switch from an open state to an outward-expanding state, during the rotation of the glasses 2, the rotating member 20 abuts against the second fixing member 30, and the rotation of the temple 202 is actually the rotation of the first fixing member 10 connected to the temple 202 around the rotating member 20 via the first rotating shaft 11, providing clamping force to the user's head. Thus, during the process of switching the glasses 2 from the open state to the folded state, or from the open state to the outward expansion state, the rotating shaft switches between the first rotating shaft 11 and the second rotating shaft 21. At the same time, the damping force during the user's rotation of the temple 202 and the clamping force of the temple 202 on the user's head during the user's wearing of the glasses 2 are separated and controlled independently by the dual rotating shafts.

[0050] See Figure 3 , Figure 3 The provided diagram shows the structure of the glasses 2 in the open state. When the hinge assembly 1 is hinged between the frame 201 and temple 202 of the glasses 2, and the temple 202 is in the open state, or when the temple 202 is folded in the direction indicated by the arrow (thickened dotted line), the glasses 2 are primarily rotated by the rotating member 20 via the second pivot 21 around the second fixing member 30 connecting the frame 201. The torsion springs 40 between the rotating member 20 and the first fixing member 10 maintain a predetermined angle. In this case, if the glasses 2 are in the open state, when the user wears the glasses 2, the torsion springs 40, being pre-torsioned at a predetermined angle, provide pre-pressure to the first fixing member 10, keeping the rotating member 200 and the temple 202 (where the first fixing member 10 is located) in a tight-fitting state. This creates a clamping force on the user's head, especially beneficial for users with smaller head circumferences, ensuring a certain clamping force when wearing the glasses 2 and preventing displacement or slippage during user activity.

[0051] In some implementations, for users with larger head circumferences, the temples 202 of the glasses 2 expand outward along the direction indicated by the arrow in the thickened solid line. When the temples 202 expand outward from the open state to the expanded state, the angle of the torsion spring 40 is increased by the preset angle as the outward expansion angle of the temples 202 increases. Within the elastic limit, the torque of the torsion spring 40 is linearly related to the torsion angle of the torsion spring 40. That is, after the torsion spring 40 is twisted, the clamping force of the temples 202 on the user's head increases as the torsion angle of the torsion spring 40 increases.

[0052] However, for users, since the comfortable clamping force when wearing glasses 2 is typically 0.5N-1.2N, to ensure that the clamping force on the head of users with larger head circumferences remains within a comfortable range as the outward angle of the temples 202 increases, the parameters of the torsion spring 40 need to be designed. For example, by using a highly elastic material, increasing the wire diameter of the torsion spring 40 to increase the torque base, increasing the number of torsion coils of the torsion spring 40, or increasing the predetermined pre-torsion angle, the influence of changes in the torsion angle during the torsion process of the torsion spring 40 on the clamping force can be reduced.

[0053] Thus, by designing the torsion spring 40 and its parameters in the hinge assembly 1, the abstract clamping force is transformed into calculable engineering parameters, enabling users with different head circumferences to wear glasses 2 with stable and comfortable clamping force, thereby improving the user experience.

[0054] In some implementations, such as Figure 4 As shown, Figure 4 for Figure 1 An exploded view of the provided hinge assembly 1. In this embodiment, the second fixing member 30 has a first shaft hole 31, the rotating member 20 has a second shaft hole 22, and the second fixing member 30 is fixedly connected to the frame 201 in the eyeglasses 2.

[0055] In this embodiment, the second rotating shaft 21 is used to insert into the first shaft hole 31 and the second shaft hole 22, so that the second fixing member 30 and the rotating member 20 are interference-fitted through the second rotating shaft 21, so that when the rotating member 20 rotates relative to the second fixing member 30, it provides a force to the rotating member 20 that is opposite to the direction of rotation of the rotating member 20.

[0056] In one embodiment, the second rotating shaft 21 passes through the first shaft hole 31 and the second shaft hole 22. The second rotating shaft 21 is interference-fitted with the first shaft hole 31 of the second fixing member 30 and the second shaft hole 22 of the rotating member 20, thereby achieving an interference fit between the second fixing member 30 and the rotating member 20 through the second rotating shaft 21. During the rotation of the second fixing member 30 relative to the rotating member 20, i.e., when the temple 202 returns from the open state to the folded state, or when the temple 202 unfolds from the folded state to the open state, the frictional force generated between the rotating shaft and the inner walls of the first shaft hole 31 and the second shaft hole 22 provides a force to the rotating member 20 opposite to the direction of rotation of the rotating member 20, i.e., forming a damping force. This allows the user to keep the temple 202 at any position between the open state and the folded state during the rotation of the temple 202.

[0057] For example, along the axial direction of the second rotating shaft 21, the outer wall of the second rotating shaft 21 is completely fitted with the inner wall of the first shaft hole 31 and the inner wall of the second shaft hole 22, and has an interference fit, i.e., an interference fit. This allows friction to be generated between the second rotating shaft 21 and the first shaft hole 31 and the second shaft hole 22 when the second fixed member 30 rotates relative to the rotating member 20, thereby generating a damping force. Alternatively, a protrusion (such as a protruding structure) may be formed on the outer wall of the second rotating shaft 21. This protrusion forms an interference fit with the inner wall of the first shaft hole 31 and the inner wall of the second shaft hole 22, i.e., a local area of ​​the outer wall of the second rotating shaft 21 forms an interference fit with the inner wall of the first shaft hole 31 and the inner wall of the second shaft hole 22, so that friction is generated between the second rotating shaft 21 and the first shaft hole 31 and the second shaft hole 22 when they rotate relative to each other, thereby generating a damping force.

[0058] Based on this, the hinge assembly 1, as a multi-axis structure, with the rotating component 20 and the two rotating shafts, separates the traditional first fixing component 10, which is rotatably connected to the second fixing component 30 via a shared rotating shaft, into a structure where the first fixing component 10 is rotatably connected to the rotating component 20 via the first rotating shaft 11, and the second fixing component 30 is rotatably connected to the rotating component 20 via the second rotating shaft 21. In this way, the damping force during the user's rotation of the temple 202 and the clamping force of the temple 202 on the user's head during the user's wearing of the glasses 2 are separated and controlled independently by the two rotating shafts. This breaks through the performance bottleneck of the traditional single-axis structure, achieving a dual optimization of smooth and reliable folding of the glasses 2 and user wearing comfort.

[0059] In addition, to make the relative rotation of the second rotating shaft 21 with the first shaft hole 31 and the second shaft hole 22 smoother, a lubricating material can be added between the second rotating shaft 21 and the first shaft hole 31 and the second shaft hole 22 provided in this application embodiment. This makes the relative rotation of the second rotating shaft 21 with the first shaft hole 31 and the second shaft hole 22 smoother, reduces the wear of the glasses 2 during use, and helps to improve the user experience.

[0060] In another embodiment, the second fixing member 30 is provided with fixing seats on both sides along the axial direction of the second rotating shaft 21, and the fixing seats are provided with first shaft holes 31. The rotating member 20 is provided with fixing seats on both sides along the axial direction of the second rotating shaft 21, and the fixing seats are provided with second shaft holes 22. For example, when there is one second rotating shaft 21, the second rotating shaft 21 passes through the two first shaft holes 31 of the second fixing member 30 and the two second shaft holes 22 of the rotating member 20. When there are two second rotating shafts 21, one second rotating shaft 21 passes through the first shaft hole 31 of the second fixing member 30 on one side and the second shaft hole 22 of the rotating member 20 on the same side, and the other second rotating shaft 21 passes through the first shaft hole 31 of the second fixing member 30 on the other side and the second shaft hole 22 of the rotating member 20 on the same side.

[0061] In one implementation, the two ends of the second rotating shaft 21 are machined with external threads. When there is one or two second rotating shafts 21, after the second rotating shaft 21 passes through its corresponding first shaft hole 31 and second shaft hole 22, nuts are screwed on both ends of the second rotating shaft 21. Alternatively, the second rotating shaft 21 is connected to the first shaft hole 31 and the second shaft hole 22 through a threaded connection, so that the second fixing member 30 and the fixing seat of the rotating member 20 are locked and fixed, thereby forming an interference fit between the fixing seat of the second fixing member 30 and the fixing seat of the rotating member 20, so that the relative rotation between the second fixing member 30 and the rotating member 20 generates friction, thereby forming a damping force. When the fixing seat of the second fixing member 30 and the fixing seat of the rotating member 20 are directly interference-fitted, the second rotating shaft 21 can only achieve a plug-in fit with the first shaft hole 31 and the second shaft hole 22 without interference. Therefore, it is not necessary to perform an interference fit between the second rotating shaft 21 and the first shaft hole 31 and the second shaft hole 22. In this application, there are no restrictions on the structure that achieves an interference fit between the second fixing member 30 and the rotating member 20.

[0062] In another embodiment, the hinge assembly 1 may also include a pressure plate (not shown). The pressure plate is disposed between the second fixing member 30 and the rotating member 20. That is, during the assembly of the hinge assembly 1, the pressure plate is first disposed between the fixing seat of the second fixing member 30 and the fixing seat of the rotating member 20. After the nuts are screwed on both ends of the second rotating shaft 21, the pressure plate is used to provide axial clamping force along the first rotating shaft 11 for the second fixing member 30 and the rotating member 20, so that the second fixing member 30 and the rotating member 20 are interference-fitted.

[0063] As a further example, the hinge assembly 1 also includes a sleeve 50, which is sleeved on the second pivot 21. Exemplarily, the sleeve 50 is cylindrical, with an opening extending through the outer circumferential surface of the cylindrical body, and a mounting groove forming the inner cavity of the cylindrical body. The second pivot 21 can rotate within the mounting groove of the sleeve 50, and the sleeve 50 is fixed to the second fixing member 30, rotating axially with the pivot; alternatively, the sleeve 50 is fixed to the rotating member 20, rotating axially with the pivot.

[0064] In some embodiments, the sleeve 50 includes a limiting portion (not shown), on which the rotating member 20 and the second fixing member 30 are rotatably mounted. The limiting portion (not shown) is provided at the opening of the sleeve 50, limiting the sleeve 50 along the orientation of the opening onto the rotating member 20 or the second fixing member 30, so that the sleeve 50 is rotatably disposed with the rotating member 20 and the second fixing member 30, thereby blocking the second rotating shaft 21 disposed in the mounting groove of the sleeve 50 and preventing the second rotating shaft 21 from dislodging from the opening.

[0065] In other embodiments, the sleeve 50 can also be configured in other forms. As long as the sleeve 50 has an opening and a mounting groove, the second rotating shaft 21 can be inserted into the mounting groove through the opening of the sleeve 50 during assembly. The rotating shaft can be locked in the mounting groove and rotated in the mounting groove, thereby realizing the relative rotation of the second rotating shaft 21 and the rotating part 20.

[0066] In addition, in such Figure 4 In the hinge assembly 1 shown, the hinge assembly 1 has a two-axis structure, that is, the hinge assembly 1 includes a first rotating shaft 11 and a second rotating shaft 21. The first fixing member 10 and the rotating member 20 are rotatably connected through the first rotating shaft 11, and the second fixing member 30 and the rotating member 20 are rotatably connected through the second rotating shaft 21. The first rotating shaft 11 and the second rotating shaft 21 are arranged on opposite axes. At this time, the torsion spring 40 is used to twist around the first rotating shaft 11 when the rotating member 20 rotates around the first fixing member 10.

[0067] In some implementations, such as Figure 5 and Figure 6 As shown, Figure 5 This is a schematic diagram of another hinge assembly 1 provided in an embodiment of this application. Figure 6 for Figure 5 An exploded view of the provided hinge assembly 1.

[0068] In this embodiment, the hinge assembly 1 further includes a torsion spring fixing shaft 23, which is fixed to the rotating member 20 and is arranged off-axis from the first rotating shaft 11 and the second rotating shaft 21. At this time, the torsion spring 40 is used to rotate around the torsion spring fixing shaft 23 when the rotating member 20 rotates around the first fixing member 10. The torsion spring 40 is sleeved on the torsion spring fixing shaft 23 and is used to twist around the torsion spring fixing shaft 23.

[0069] in, Figure 1 The hinge assembly 1 shown has a structure in which the torsion spring 40 is directly sleeved on the first rotating shaft 11. The rotation center of the torsion spring 40 when it twists is the same as the rotation center of the rotating member 20 when it rotates around the first fixed member 10. The lever arm of the torsion spring 40 is relatively short. In this embodiment, as... Figure 5 As shown, when the torsion spring 40 is sleeved on the torsion spring fixing shaft 23, the torsion spring fixing shaft 23 is taken as the rotation center when the torsion spring 40 is torn. During the outward expansion of the temple, the rotation direction of the rotating member 20 around the first fixing member 10 is... Figure 5 The arrow, indicated by the bold solid line, points in the direction where the rotation center of the rotating component 20 remains the first axis 11 when it rotates around the first fixed component 10. This causes the rotation center of the torsion spring 40 to separate from the rotation center of the rotating component 20, increasing the lever arm of the torsion spring 40 and reducing the change in the torsion angle of the torsion spring 40 when the rotating component 20 rotates around the first fixed component 10. Furthermore, when the torsion spring 40 rotates by the same torsion angle, the clamping force of the temple 202 on the user's head decreases as the lever arm of the torsion spring 40 increases.

[0070] Based on this, by additionally setting a torsion spring fixing shaft 23 in the hinge assembly 1, the torsion spring 40 is sleeved on the torsion spring fixing shaft 23, making the torsion spring fixing shaft 23 the rotation center of the torsion spring 40, thereby separating the rotation center of the torsion spring 40 from the rotation center of the rotating member 20. Thus, as the outward expansion angle of the temple 202 increases, when the rotating member 20 rotates around the first fixing member 10, the change in the torsion angle of the torsion spring 40 during the torsion process has a smaller impact on the clamping force, and the amount of change in the torsion angle of the torsion spring 40 is reduced. This results in a smaller difference in the clamping force felt by users with different head circumferences when wearing glasses 2, thereby improving the stability of the clamping force and enhancing the user experience.

[0071] Additionally, see the above. Figure 3 The glasses 2 equipped with the aforementioned hinge assembly 1 can be ordinary optical glasses, or smart glasses for displaying functions such as virtual reality, augmented reality, or mixed reality, or other smart wearable glasses products. This embodiment of the application does not show these.

[0072] Additionally, the eyeglasses 2 may also include a lens 203, which is mounted on the frame 201. For example... Figure 3In the glasses 2 shown, the lens 203 is mounted below the frame 201. The lens 203 can also be mounted in any or multiple directions of the frame 201. For example, the lens 203 can be surrounded by the frame 201 in the center, without any limitation. The lens 203 can be a lens for correcting vision, such as a concave or convex lens, or a lens for sun protection or eye protection, such as a plane lens, or a lens 203 for allowing the user to view virtual images when realizing near-eye display, such as a display module. The display module can present images such as control interfaces, movie screens, or navigation maps to the user.

[0073] In one embodiment, the first fixing member 10 of the hinge assembly 1 is fixedly connected to the temple 202, and the second fixing member 30 of the hinge assembly 1 is fixedly connected to the frame 201. Specifically, the temple 202 has a mounting groove near the frame 201, and at least a portion of the first fixing member 10 is embedded in the mounting groove of the temple 202, thereby fixing the hinge assembly 1 to the temple 202. Similarly, the frame 201 assembly has a mounting groove near the temple 202, and at least a portion of the second fixing member 30 is embedded in the mounting groove of the frame 201, thereby fixing the hinge assembly 1 to the frame 201.

[0074] In another embodiment, the first fixing member 10 of the hinge assembly 1 is integrally formed with the temple 202, and the second fixing member 30 of the hinge assembly 1 is integrally formed with the frame 201. The integrated design between the fixing member in the hinge assembly 1 and the frame 201 or temple 202 can reduce the number of parts of the glasses 2 and simplify the assembly steps of the glasses 2.

[0075] For example, when the glasses 2 provided in this embodiment are smart glasses, compared with ordinary optical glasses, smart glasses form an accommodating space in the frame 201 to place a camera for taking pictures and an optical engine for near-eye display. In addition, smart glasses also form an accommodating space in the temples 202 to place batteries, sensors, chips and other components to provide power and computing support.

[0076] In addition, the electronic components or circuit boards integrated with the electronic components in the frame 201 and the electronic components or circuit boards integrated with the electronic components in the temple 202 need to be connected by at least one of flexible printed circuit board (FPC), circuit traces or data traces to realize the transmission of electrical energy, signals, etc.

[0077] In this embodiment, when the flexible circuit board, circuit traces or data traces are connected from the frame 201 to the temple 202 via the hinge assembly 1, the second fixing member 30 and the sleeve 50 in the hinge assembly 1 are also provided with wire passage grooves (not shown in the figure). The wire passage grooves on the second fixing member 30 and the sleeve 50 form an extension channel in the hinge assembly 1 that connects the frame 201 and the temple 202.

[0078] For example, such as Figure 7 As shown, Figure 7 This is a schematic diagram of the wiring of the hinge assembly 1 provided in an embodiment of this application. Figure 7 (A) in the middle is Figure 1 The provided schematic diagram of the hinge assembly 1 is shown. Figure 7 (B) in the middle is Figure 5 The provided schematic diagram shows the wiring path of the hinge assembly 1. The wiring direction of the flexible circuit board, circuit traces, or data traces in the hinge assembly 1 is along the direction indicated by the arrow where the thickened solid line is located. Placing the flexible circuit board, circuit traces, or data traces within the extended channel formed by this wiring groove can protect the flexible circuit board or traces. For example, it avoids mechanical damage caused by external pulling, squeezing, or random shaking, and reduces the risk of damage to the flexible circuit board or traces due to excessive bending during the folding and opening of the glasses 2, thereby reducing the risk of damage during the use of the glasses 2.

[0079] In addition, such as Figure 7 As shown, in addition to the wire guide groove, a shielding plate 60 can also be provided in the hinge assembly 1. The shielding plate 60 can shield the flexible circuit board or wiring when it is located in the wire guide groove. In this case, the shielding plate 60 not only prevents the flexible circuit board or wiring from being exposed, which is beneficial to the aesthetics of the glasses 2, but also provides better protection for the flexible circuit board or wiring, further reducing the risk of damage during use. The shielding plate 60 can be an independent component in the hinge assembly 1, or it can be integrally formed with the cover plate of the temple 202 or the frame 201, which is more effective in preventing dust, liquid, or moisture from corroding the flexible circuit board or wiring, protecting its safety during use. In this embodiment, the method of setting the shielding plate 60 is not limited.

[0080] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A hinge assembly for eyeglasses, characterized in that, It includes a first fixing component, a rotating component, a second fixing component, and a torsion spring; The first fixing member and the rotating member are rotatably connected via a first rotating shaft, and the second fixing member and the rotating member are rotatably connected via a second rotating shaft, wherein the first rotating shaft and the second rotating shaft are arranged on opposite axes; The torsion spring is disposed between the first fixed member and the rotating member. When the rotating member rotates around the first fixed member and the torsion spring is subjected to torsion, the torsion spring provides a force to the first fixed member that is opposite to the rotation direction of the rotating member.

2. The hinge assembly according to claim 1, characterized in that, The torsion spring is sleeved on the first rotating shaft, and the torsion spring is used to twist around the first rotating shaft.

3. The hinge assembly according to claim 1, characterized in that, The hinge assembly further includes a torsion spring fixing shaft, which is fixed to the rotating member and is arranged on a different axis from the first rotating shaft and the second rotating shaft. The torsion spring is sleeved on the torsion spring fixing shaft, and the torsion spring is used to twist around the torsion spring fixing shaft.

4. The hinge assembly according to any one of claims 1 to 3, characterized in that, One end of the torsion spring is fixed to the rotating member, and the other end of the torsion spring abuts against the first fixing member.

5. The hinge assembly according to claim 4, characterized in that, The torsion spring is twisted at a predetermined angle to provide preload to the first fixing member.

6. The hinge assembly according to any one of claims 1 to 3, characterized in that, The second fixing member has a first shaft hole, and the rotating member has a second shaft hole; The second rotating shaft is used to insert into the first shaft hole and the second shaft hole, so that the second fixing member and the rotating member are interference-fitted through the second rotating shaft, so as to provide the rotating member with a force opposite to the rotation direction of the rotating member when the rotating member rotates relative to the second fixing member.

7. The hinge assembly according to claim 6, characterized in that, The hinge assembly further includes a pressure plate disposed between the second fixing member and the rotating member, which provides an axial clamping force along the first axis of rotation for the second fixing member and the rotating member, so that the second fixing member and the rotating member are in an interference fit.

8. The hinge assembly according to any one of claims 1 to 3, characterized in that, The hinge assembly also includes a sleeve that is fitted onto the second pivot.

9. The hinge assembly according to claim 8, characterized in that, The sleeve includes a limiting part, and the rotating member and the second fixing member are rotatably mounted on the limiting part.

10. The hinge assembly according to claim 8, characterized in that, The second fixing member and the sleeve are provided with wire grooves.

11. A pair of eyeglasses, characterized in that, The eyeglasses include a frame, temples, and a hinge assembly as described in any one of claims 1 to 10, wherein the temples are hinged to the frame via the hinge assembly.

12. The eyeglasses according to claim 11, characterized in that, The first fixing member of the hinge assembly is fixedly connected to the temple of the mirror, and the second fixing member of the hinge assembly is fixedly connected to the frame of the mirror.

13. The eyeglasses according to claim 11, characterized in that, The first fixing member of the hinge assembly is integrally formed with the temple of the glasses, and the second fixing member of the hinge assembly is integrally formed with the frame of the glasses.

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