Glasses and hinge assembly

Abstract

Glasses (100) and a hinge assembly (1). The glasses (100) comprise a glasses frame (3) and temples (2), wherein the glasses frame (3) is configured to support optical elements, and the temples (2) are connected to the glasses frame (3); each temple (2) has a first position and a second position relative to the glasses frame (3), and the temple (2) moves between the first position and the second position relative to the glasses frame (3); and when the temple (2) moves away from the first position, a first holding force is provided at a holding part of the temple (2), and when the temple (2) reaches the second position, a second holding force is provided at the holding part, the ratio of the second holding force to the first holding force being greater than 1 and less than or equal to 1.3. The hinge assembly (1) comprises a first component (11), a second component (12) and an elastic component (13), which are rotatably connected, wherein the elastic component (13) is arranged between the first component (11) and the second component (12), and is configured to provide a first torque that enables the second component (12) to remain at the first position and provide a second torque that enables rotation of the second component (12) from the second position toward the first position, the ratio of the second moment to the first moment being greater than 1 and less than or equal to 1.3.

Description

Glasses and hinge assemblies

[0001] This disclosure claims the priority of the Chinese patent application filed with the Patent Office of China on January 5, 2024, with application number CN202410022234.X and invention name “Glasses and Hinge Assembly”, and the priority of the Chinese patent application filed with the Patent Office of China on January 30, 2024, with application number CN202410132462.2 and invention name “Glasses and Hinge Assembly”, the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0002] The present disclosure relates to the field of wearable technology, and in particular to a pair of glasses and a hinge assembly. Background Art

[0003] The clamping force of the temples of glasses is usually provided by elastic components. Due to the limited internal space size of the glasses, the compression space of the elastic components is small. If you want to obtain a larger clamping force in the end, you need to use elastic components with a larger elastic coefficient. As a result, during the outward expansion of the temples, there will be a large gap between the initial clamping force and the final clamping force. That is, users with small head circumferences will feel insufficient clamping force, while users with large head circumferences will feel a very obvious clamping force. Summary of the Invention

[0004] The present disclosure provides a hinge assembly for hingedly connecting a frame and temples of glasses. The hinge assembly includes temples, a frame, and an elastic component. The first component is connected to the frame, or the first component is part of the frame. The frame is connected to the temple, or the frame is part of the temple. The temple and the frame are rotatably connected. The frame has a first position and a second position relative to the temple. The second component can rotate relative to the first component between the first position and the second position. The elastic component is disposed between the temple and the frame and is used to provide a first torque to maintain the frame in the first position and a second torque to rotate the second component from the second position toward the first position. The ratio of the second torque to the first torque is greater than 1 and less than or equal to 1.3.

[0005] An embodiment of the present disclosure also provides a pair of glasses, comprising: a frame for supporting optical elements; temples connected to the frame; and the above-mentioned hinge assembly, which is used to hinge the frame and temples of the glasses so that the temples can rotate relative to the frame between the first position and the second position.

[0006] An embodiment of the present disclosure also provides a pair of glasses, comprising: a frame for supporting optical elements; temples connected to the frame; the temples being capable of rotating relative to the frame between a first position and a second position, and providing a first clamping force at a clamping portion of the temples when the temples leave the first position; and providing a second clamping force at the clamping portion when the temples reach the second position; and a ratio of the second clamping force to the first clamping force being greater than 1 and less than or equal to 1.3.

[0007] The technical solution of the present disclosure is further described in detail below through the accompanying drawings and examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0009] The present disclosure can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0010] FIG1 shows a schematic structural diagram of glasses provided by an embodiment of the present disclosure;

[0011] FIG2 is a schematic diagram showing a pair of glasses provided by an embodiment of the present disclosure when the temples are in a first position;

[0012] FIG3 is a schematic diagram showing the temples of the glasses provided by an embodiment of the present disclosure in a second position;

[0013] FIG4 shows an exploded view of a partial structure of glasses using the first hinge assembly according to an embodiment of the present disclosure;

[0014] FIG5 shows a schematic structural diagram of a first hinge assembly provided by an embodiment of the present disclosure;

[0015] FIG6 shows an exploded view of a partial structure of glasses using the first hinge assembly according to an embodiment of the present disclosure;

[0016] FIG7 shows a force diagram of a first hinge assembly provided by an embodiment of the present disclosure;

[0017] FIG8 shows a schematic structural diagram of a second hinge assembly provided by an embodiment of the present disclosure;

[0018] FIG9 shows a force diagram of a second hinge assembly provided by an embodiment of the present disclosure;

[0019] FIG10 is a schematic diagram showing a partial structure of glasses using a third hinge assembly according to an embodiment of the present disclosure;

[0020] FIG11 shows a partial cross-sectional view of glasses using a third hinge assembly provided by an embodiment of the present disclosure;

[0021] FIG12 shows a schematic structural diagram of a third hinge assembly provided by an embodiment of the present disclosure;

[0022] FIG13 shows a force diagram of a third hinge assembly provided by an embodiment of the present disclosure;

[0023] FIG14 shows a graph showing the relationship between the clamping force and the outward angle of the temples of the first hinge assembly and the common hinge assembly provided in an embodiment of the present disclosure.

[0024] In the figure, 100, glasses; 1, hinge assembly; 11, first component; 111, first extension; 113, first rotating connection; 1131, connecting column; 1131a, column hole; 1132, connecting shaft; 114, second extension; 12, second component; 121, limiting portion; 122, connecting arm; 1221, first connecting hole; 123, second connecting plate; 13, elastic component; 14, first rod; 141, shaft hole; 15, second rod; 16, sliding ring; 161, limiting groove; 17, spring; 18, limiting screw; 2, temple; 21, temple housing; 22, second connecting seat; 23, through hole; 24, threaded hole; 3, frame; 31, front frame; 32, crossbeam; 33, first connecting seat; 34, shaft screw; 35, shaft seat screw; a, screw.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted" and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0029] FIG1 illustrates a pair of glasses 100 provided by some embodiments of the present disclosure, comprising a frame 3 and temples 2. The frame 3 is used to support optical components, and the temples 2 are connected to the frame 3. The temples 2 can move relative to the frame 3 to adjust the angle of the temples relative to the frame. When a user wears the glasses 100, the temples 2 apply a clamping force to the user's head, ensuring that the glasses 100 are securely worn.

[0030] In some optional embodiments of the present disclosure, the clamping force applied by the temples 2 can be provided by the temples 2 themselves. For example, the temples 2 may include portions made of a flexible material, allowing the temples 2 to deform. When the temples 2 are extended, the temples 2 elastically deform to apply a clamping force to the user's head.

[0031] In some optional embodiments of the present disclosure, the clamping force exerted by the temple 2 can also be provided by an elastic component 13 disposed between the temple 2 and the frame 3. When the temple 2 is extended, the elastic component 13 deforms. The deformation recovery force generated by the elastic component 13 causes the temple 2 to generate the clamping force.

[0032] Figure 2 shows a schematic diagram of a pair of glasses provided by an embodiment of the present disclosure when the temple is in a first position, and Figure 3 shows a schematic diagram of a pair of glasses provided by an embodiment of the present disclosure when the temple is in a second position. In some embodiments of the present disclosure, the temple 2 has a first position and a second position relative to the frame 3, and the temple 2 is movable relative to the frame between the first position and the second position. When the temple 2 just leaves the first position, a first clamping force is applied to the clamping portion of the temple 2; when the temple 2 reaches the second position, a second clamping force is applied to the clamping portion; and the ratio of the second clamping force to the first clamping force is greater than 1 and less than or equal to 1.3.

[0033] In some embodiments of the present disclosure, the first position may be the position where the temple 2 is in a naturally open state; the second position may be the position where the temple 2 is at the maximum opening angle relative to the frame 3.

[0034] In some embodiments of the present disclosure, the first position may be the position where the temple 2 provides the minimum clamping force, and the second position may be the position where the temple 2 provides the maximum clamping force.

[0035] When the first position is the position where the temple 2 is in a naturally open state, the clamping force applied by the temple 2 is zero, that is, the temple 2 does not apply any clamping force. When the temple 2 leaves the first position, the user wearing the glasses 100 can immediately feel the clamping force applied by the temple 2.

[0036] The clamping force applied to the user's head by the temples 2 of the glasses 100 provided in the embodiment of the present disclosure does not increase significantly during the outward extension process, and the clamping force felt by users with small head circumference and users with large head circumference when wearing the glasses 100 is not much different, so that users with different head circumferences can have a good comfortable experience when wearing the glasses 100 provided by the present disclosure.

[0037] In some embodiments of the present disclosure, when the temple 2 is in the first position, the frame and the temple 2 have a first angle; when the temple 2 is in the second position, the frame and the temple 2 have a second angle, and the difference between the first angle and the second angle is greater than or equal to 15 degrees and less than or equal to 25 degrees.

[0038] When the temples 2 are opened from 15 degrees to 25 degrees, the clamping force exerted by the temples 2 on the user's head does not increase significantly, nor does the clamping force felt by the user change significantly, thereby providing a comfortable wearing experience for users with different head circumferences. In the disclosed embodiment, when the temples 2 are opened from 15 degrees to 25 degrees, the clamping space between the two temples 2 has a large range of variation, which can meet the wearing needs of most users and provide a good wearing experience for most users.

[0039] In some embodiments of the present disclosure, the first clamping force is greater than or equal to 0.23 kgf and less than or equal to 0.27 kgf, where kgf is kilogram-force.

[0040] Typically, the weight of the glasses 100 is mostly distributed on the frame 3. When a user wears the glasses 100, the bridge of the nose bears the majority of the weight, while the ears bear a smaller portion. By applying a first clamping force of 0.23 kgf or greater and 0.27 kgf or less at the clamping point of the temples 2, the pressure of the glasses 100 on the bridge of the user's nose is effectively reduced, conforming to ergonomic design while preventing the glasses 100 from sliding down or falling off, providing a better wearing experience.

[0041] In some embodiments of the present disclosure, the distance between the clamping portion and the connection between the temple 2 and the frame is 7.5 cm to 8.5 cm. The clamping portion is the part of the temple 2 that contacts the user's head, and the clamping portion directly applies a clamping force to both sides of the user's head. Extensive experiments have shown that after most users wear glasses 100, the distance between the part of the temple 2 that contacts the user's head and the frame 3 is 7.5 cm to 8.5 cm. This part is the clamping portion, and the clamping force applied by this clamping portion ensures that most users enjoy a comfortable wearing experience.

[0042] Optionally, when the temple 2 is fixed to the frame 3 by a fastener, the clamping part is a part on the temple 2 that is 7.5cm to 8.5cm away from the connection point with the frame; when the temple 2 is hinged to the frame 3, the clamping part is a part on the temple 2 that is 7.5cm to 8.5cm away from the rotation center of the temple 2.

[0043] In some embodiments of the present disclosure, when the temple 2 is in the first position, the angle between the temple 2 and the frame 3 is greater than or equal to 83 degrees and less than or equal to 87 degrees. The first position can be a position where the temple 2 is in a naturally open state or a position close to the naturally open state. When the temple 2 is in the first position, the temple 2 does not exert a clamping force; when the temple 2 opens outward from the first position, the user immediately feels the clamping force.

[0044] In some embodiments of the present disclosure, the weight of the glasses 100 is greater than or equal to 50 grams and less than or equal to 100 grams. By limiting the weight of the glasses 100 to between 50 grams and 100 grams, the pressure on the user's head (e.g., the bridge of the nose and ears) can be reduced, alleviating discomfort that may occur from prolonged wear, thereby improving wearing comfort.

[0045] In some embodiments of the present disclosure, when the weight of the glasses 100 is greater than or equal to 50 grams and less than or equal to 100 grams, a first clamping force greater than or equal to 0.23 kgf and less than or equal to 0.27 kgf is applied at the clamping portion by the temples 2. This can effectively reduce the pressure of the glasses 100 of this weight on the user's nose bridge, conform to ergonomic design, and prevent the glasses 100 from slipping or falling off, providing a good wearing experience for the user.

[0046] Figure 4 shows an exploded view of a portion of the structure of glasses using the first hinge assembly provided by an embodiment of the present disclosure. As shown in Figure 4, glasses 100 provided by some embodiments of the present disclosure include: a frame 3, temples 2, and an elastic member 13. The elastic member 13 is disposed between the frame 3 and the temples 2 and prevents the temples 2 from rotating from a first position to a second position.

[0047] The elastic component 13 is used to provide a damping force for the temples 2 to expand outward relative to the frame 3. When the glasses 100 are worn on the user's head, the two temples 2 of the glasses 100 expand outward. The damping force provided by the elastic component 13 can enable the two temples 2 to clamp the user's head, so that the temples 2 can share the pressure of the nose pads of the glasses 100 and enable the glasses 100 to be stably worn on the user's head. In the process of the temples 2 opening relative to the frame 3, the elastic deformation of the elastic component 13 will increase, and the elastic component 13 will apply a damping force to the temples 2, so that the temples 2 apply a clamping force on the user's head in the opposite direction to the damping force. The elastic component 13 includes but is not limited to a torsion spring, a spring, a tension spring, a compression spring and a damping shaft.

[0048] Figure 5 shows a schematic diagram of the structure of a hinge assembly for glasses using a torsion spring, provided in some embodiments of the present disclosure. As shown in Figure 5 , when the elastic component 13 of the glasses 100 uses a torsion spring, in the first position, the torsion spring is positioned between the temple 2 and the frame 3 at a preset torsion angle. As the temple 2 opens to the second position, the torsion spring's torsion angle increases, and the torsion spring applies a damping force to the temple 2, hindering its rotation. This forces the temple 2 to apply a clamping force to the user's head in the opposite direction of the damping force.

[0049] In some embodiments of the present disclosure, the elastic component 13 of the eyeglasses 100 can also be a spring. Optionally, the spring comprises two straight pieces, which, in their natural state, are angled. In the first position, the spring is positioned between the temple 2 and the frame 3 at a predetermined angle. As the temple 2 opens, the angle between the two straight pieces changes, thereby providing a damping force to the temple 2 that hinders its rotation, causing the temple 2 to apply a clamping force to the user's head in the opposite direction of the damping force.

[0050] In some embodiments of the present disclosure, the elastic component 13 of the eyeglasses 100 may be a tension spring. In the first position, the tension spring is positioned between the temple 2 and the frame 3 at a preset stretched length. As the temple 2 is extended to the second position, the stretched length of the tension spring continues to increase, thereby providing a damping force to the temple 2 that hinders its rotation, causing the temple 2 to apply a clamping force to the user's head in the opposite direction of the damping force.

[0051] In some embodiments of the present disclosure, the elastic component 13 of the eyeglasses 100 may be a compression spring. In the first position, the compression spring is located between the temple 2 and the frame 3 at a preset compressed length. As the temple 2 is extended to the second position, the compressed length of the tension spring continuously decreases, thereby providing a damping force to the temple 2 that hinders its rotation, causing the temple 2 to apply a clamping force to the user's head in the opposite direction of the damping force.

[0052] In some embodiments of the present disclosure, the elastic component 13 of the eyeglasses 100 can be a damping shaft. When the temple leaves the first position, the damping shaft immediately provides a damping force. As the temple 2 opens to the second position, the damping shaft can provide an increasing damping force, thereby providing a damping force to the temple 2 that hinders its rotation, causing the temple 2 to apply a clamping force on the user's head in the opposite direction of the damping force. Alternatively, the damping shaft can provide a constant or variable damping force.

[0053] In some embodiments of the present disclosure, the glasses 100 also include a hinge assembly 1, which is arranged between the temple 2 and the frame. The temple 2 is rotatably connected to the frame through the hinge assembly 1. The temple 2 and the frame 3 are connected through the hinge assembly 1. The hinge assembly 1 can realize relative rotation between the frame 3 and the temple 2 to adjust the angle of the temple 2 relative to the frame 3. The elastic component 13 is arranged on the hinge assembly 1.

[0054] The following provides a hinge assembly that can be used in the glasses provided by the embodiments of the present disclosure.

[0055] FIG5 illustrates a first hinge assembly 1 provided in accordance with some embodiments of the present disclosure. As shown in FIG5 , the hinge assembly 1 may include a first component 11 and a second component 12, wherein the first component 11 and the second component 12 are rotatably connected and can rotate relative to each other within a certain angle range. The first component 11 can be used to connect the temple 2, and the second component 12 can be used to connect the frame 3, thereby achieving a connection between the temple 2 and the frame 3. When the first component 11 and the second component 12 rotate relative to each other, the temple 2 and the frame 3 rotate relative to each other, enabling adjustment of the angle between the temple 2 and the frame 3.

[0056] As shown in Figures 4 and 5, the first component 11 includes a first extension portion 111 and a second extension portion 114, and the first extension portion 111 and the second extension portion 114 are connected. Optionally, the first extension portion 111 and the second extension portion 114 can extend in different directions, that is, there can be an angle between the first extension portion 111 and the second extension portion 114. Alternatively, the first extension portion 111 and the second extension portion 114 can also extend along a curve, for example, the first extension portion 111 and the second extension portion 114 extend along an arc. As shown in Figure 2, the second component 12 includes oppositely arranged limiting portions 121. The oppositely arranged limiting portions 121 can accommodate the second extension portion 114 and can provide space for the second extension portion 114 to move. Optionally, there are two limiting portions 121, and the two limiting portions 121 are spaced apart and opposite to each other. The first component 11 and the second component 12 are rotatably connected, with the second extension 114 of the first component 11 positioned between the opposing stoppers 121. The second extension 114 is rotatable about the first axial direction, thereby enabling the temple 2 to rotate about the first axial direction relative to the frame 3. The stoppers 121 of the second component 12 limit the relative rotation of the second extension 114 to an extreme position, that is, define the relative rotation range of the second extension 114. Thus, the relative rotation range of the temple 2 and the frame 3 can be limited.

[0057] In some embodiments of the present disclosure, as shown in FIG5 , an elastic component 13 is disposed within the hinge assembly 1. The elastic force of the elastic component 13 can serve as a restoring force for the movement of the first component 11 relative to the second component 12, that is, a damping force for the temple 2 to open outward relative to the frame 3.

[0058] As shown in Figure 5, the elastic component 13 is located between the first component 11 and the second component 12, and is used to provide a restoring force for the first extension portion 111 to rotate closer to the second component 12. When an external force is applied, the elastic component 13 located between the first component 11 and the second component 12 is deformed by the force during the process of the temple 2 opening relative to the frame 3. After the external force is removed, the elastic component 13 recovers its deformation, causing the temple 2 to retract inward relative to the frame 3. The provision of the elastic component 13 provides a damping force for the temple 2 to expand outward relative to the frame 3, allowing the temple 2 to share the pressure of the nose pads of the glasses 100 and making it difficult for the glasses 100 to fall off when worn on the human body, thereby improving wearing comfort.

[0059] In some embodiments of the present disclosure, the second component 12 may include two stoppers 121 disposed on the inner and outer sides. Optionally, when the temple 2 is extended, the second extension 114 may compress the elastic component 13, causing the elastic component 13 to provide a reverse return force. This can be achieved by positioning the elastic component 13 between the second extension 114 and the inner stopper 121. Alternatively, when the temple 2 is extended, the second extension 114 may stretch the elastic component 13, causing the elastic component 13 to provide a reverse return force. This can be achieved by positioning the elastic component 13 between the second extension 114 and the outer stopper 121. In some embodiments of the present disclosure, the elastic component 13 is positioned between the second extension 114 and either stopper 121 of the second component 12, such that when the first extension 111 rotates away from the second component 12, the second extension 114 acts on the elastic component 13, causing the elastic component 13 to deform. For example, the second extension portion 114 can compress or stretch the elastic component 13, causing the elastic component 13 to deform or increase the deformation of the elastic component 13. Thus, the elastic component 13 provides a restoring force for the first extension portion 111 to rotate toward the second component 12.

[0060] It is understood that the "inner limit portion 121" above can be understood as the limit portion 121 closer to the face when the glasses 100 are worn. The "outer limit portion 121" can be understood as the limit portion 121 farther from the face when the glasses 100 are worn.

[0061] In some embodiments of the present disclosure, the second component 12 includes two connecting arms 122 . The two connecting arms 122 and the limiting portion 121 form an accommodating space, and the second extending portion 114 is accommodated in the accommodating space.

[0062] In an optional embodiment, each connecting arm 122 is connected to two limiting portions 121. Optionally, the plane on which the connecting arms 122 lie is substantially perpendicular to the limiting portions 121. The two connecting arms 122 can be used to define the position of the second extension portion 114. The distance between the two connecting arms 122 is slightly greater than the width of the second extension portion 114, thereby cooperating with the two limiting portions 121 to limit the second extension portion 114 to swing only within the accommodation space.

[0063] In some embodiments of the present disclosure, the first component 11 further includes a first rotating connection portion 113, which is connected to at least one of the two connecting arms 122. The connecting arms 122 also provide a physical structure for mounting the first rotating connection portion 113, thereby facilitating the connection between the second component 12 and the first component 11.

[0064] In some optional embodiments, as shown in FIG4 , the first rotational connection portion 113 may include a connecting shaft 1132, which is used to connect the first component 11 and the second component 12 so that the temple 2 can rotate relative to the frame 3 about the connecting shaft. The axial direction of the connecting shaft 1132 is the first axial direction. Optionally, the connecting shaft 1132 and the first component 11 may be detachable separate parts; or, the connecting shaft 1132 and the first component 11 may be integrally formed.

[0065] In some optional embodiments, as shown in Figures 5 and 6, the first rotatable connection portion 113 may include a connecting post 1131, which is disposed at the corner between the first extension portion 111 and the second extension portion 114. The connecting post 1131 has a post hole 1131a. A connecting shaft 1132 may be fixedly or rotatably connected to the post hole 1131a. The connecting arm 122 of the second component 12 may be provided with a first connecting hole 1221, and the connecting shaft 1132 plugs into the post hole 1131a and the first connecting hole 1221. This allows the second component 12 to be rotatably connected to the connecting shaft.

[0066] Optionally, the connecting shaft 1132 may include a column and a cap disposed at one end of the column. The end of the column facing away from the cap sequentially passes through the first connecting hole 1221 on the upper connecting arm 122 and the post hole 1131a of the connecting column 1131, and then connects to the first connecting hole 1221 on the lower connecting arm 122. At least one of the first connecting hole 1221 and the post hole 1131a may be internally threaded, and the connecting shaft 1132 may be externally threaded. The column is threadedly connected to at least one of the first connecting hole 1221 and the post hole 1131a. The cap is positioned on the upper connecting arm 122. Positioning the connecting column 1131 at the angle between the first extension portion 111 and the second extension portion 114 reduces the space occupied by the first extension portion 111 and the second extension portion 114, thereby not affecting the connection between the first extension portion 111 and the temple 2, nor the fit between the second extension portion 114 and the second component 12.

[0067] In some embodiments of the present disclosure, the first component 11 may include a mounting plate connected to the first extension portion 111 and the second extension portion 114, with the mounting plate extending from the first extension portion 111 toward the second extension portion 114. A connecting post 1131 may be provided on the mounting plate. A post hole 1131a extends through both the connecting post 1131 and the mounting plate, such that the connecting axis of the first rotating connection portion 113 passes through the connecting post 1131 and the mounting plate. Optionally, the plane on which the mounting plate is located is substantially perpendicular to at least one of the planes on which the first extension portion 111 and the second extension portion 114 are located, and the mounting plate is connected to the ends of the first extension portion 111 and the second extension portion 114 on the same side.

[0068] In some embodiments of the present disclosure, the elastic member 13 located between the first member 11 and the second member 12 may include a bent spring piece, the bent portion of which is sleeved onto the connecting post 1131. For example, the bent spring piece may be generally U-shaped, comprising an outwardly convex curved piece and two flat pieces located on either side of the outwardly convex curved piece. The connecting post 1131 may be located within the inner groove of the outwardly convex curved piece, while the two flat pieces respectively abut against the stopper 121 and the second extension 114.

[0069] In some embodiments of the present disclosure, the elastic component 13 located between the first component 11 and the second component 12 may include a torsion spring. Figures 4, 5, and 6 illustrate schematic structural diagrams of a hinge assembly 1 or glasses using a torsion spring, provided in some embodiments of the present disclosure. The elastic component 13 may include a torsion spring, which is sleeved on a connecting column 1131. The torsion spring has a spiral barrel section and torsion arms located at both ends of the spiral barrel section. The spiral barrel section is sleeved on the connecting column 1131, and the two torsion arms are located within the accommodating space and respectively abut against the second extension portion 114 and the limiting portion 121.

[0070] In the model of this first hinge assembly 1, the moment arm of the temple 2 forms an angle with the moment arm of the elastic component 13. Figure 7 shows a force diagram of the first hinge assembly 1 using a torsion spring. The temple 2 provides a clamping force F', and the moment arm of this clamping force F' is L'. The elastic force of the torsion spring, i.e., the damping force F provided by the torsion spring, hinders the rotation of the second component relative to the first component. The moment arm of this damping force F is L.

[0071] It is understood that in some cases, the damping force provided by the torsion spring may not be perpendicular to the lever arm. Therefore, the damping force can be divided into two categories: a damping force perpendicular to the lever arm and a damping force along the lever arm. The damping force F perpendicular to the lever arm is the effective damping force that prevents the second component from rotating relative to the first component. The damping force that prevents the second component from rotating relative to the first component mentioned in this disclosure is the effective damping force.

[0072] Figure 8 illustrates the structure of a second hinge assembly 1 provided in some embodiments of the present disclosure. Figure 9 illustrates a force diagram of the second hinge assembly provided in an embodiment of the present disclosure. This second hinge assembly 1 comprises a first component 11 and a second component 12. The first component 11 is connected to the temple 2, and the second component 12 is connected to the frame 3. The first component 11 can be considered part of the temple 2; the second component 12 can be considered part of the frame 3. Optionally, the second component 12 can be mounted at the end of the frame 3; alternatively, the second component 12 can be a stud mounted at the end of the frame 3. The first component 11 and the second component 12 are hingedly connected. Both components 11 and 12 are provided with compression spring locating posts. The elastic component 13 can be a compression spring, with its ends respectively sleeved over the compression spring locating posts on the first and second components 11 and 12. The clamping force provided by the temple 2 is F', and the moment arm of this clamping force F' is d'. The elastic force of the compression spring, i.e., the damping force F provided by the compression spring, inhibits the rotation of the second component relative to the first component. The moment arm of this damping force F is d. As shown in Figure 9, the arm d of the elastic component 13 is located on the extension line of the arm d' of the temple 2. The arm d of the elastic component 13 is located on the frame. The arm d' of the temple 2 and the arm d of the frame 3 are located on either side of the rotation center of the temple 2.

[0073] FIG10 is a partial structural schematic diagram of glasses using the third hinge assembly provided in an embodiment of the present disclosure, FIG11 is a partial cross-sectional view of glasses using the third hinge assembly provided in an embodiment of the present disclosure, and FIG12 is a structural schematic diagram of the third hinge assembly provided in an embodiment of the present disclosure. In one possible embodiment, the frame 3 includes a frame shell and a first connecting seat 33 connected to the frame shell. The temple 2 includes a temple shell and a second connecting seat 22 connected to the temple shell. The first connecting seat 33 and the second connecting seat 22 are connected by a hinge.

[0074] The frame 3 and each temple 2 are connected via two hinges. Two second connection seats 22 are provided along the temple 2's width, and two first connection seats 33 are provided at the ends of the frame 3. A hinge assembly 1 is connected between each first connection seat 33 and each second connection seat 22. The hinge assembly 1 comprises a first rod 14, a second rod 15, and an elastic member, which can be a tension spring 17. The second rod 15 is connected to the first rod 14, which has a rotating shaft hole 141. A sliding ring 16 and a tension spring 17 are sleeved on the second rod 15. A blocking piece is provided at the end of the second rod 15 facing away from the first rod 14. The tension spring 17 is positioned between the sliding ring 16 and the blocking piece. A limiting groove 161 is provided on the sliding ring 16. The second connecting seat 22 has a through hole 23 and a threaded hole 24 communicating with the through hole 23. The second hinge rod 15 is inserted into the through hole 23. A limiting screw 18 passes through the threaded hole 24 on the second connecting seat 22 and abuts against the limiting groove 161 of the sliding ring 16, thereby defining the position of the sliding ring 16. The first connecting seat 33 can be fixed to the main body of the frame 3 via a rotating shaft screw 35. The rotating shaft screw 34 passes through the first connecting seat 33 and extends through the rotating shaft hole 141 on the first rod 14, thereby completing the assembly of the hinge assembly. During the process of folding or opening the temple 2, the relative position of the temple 2 and the end of the frame 3 will change, and the sliding sleeve can slide on the second rod 15 to satisfy the above-mentioned position change relationship. The setting of the tension spring 17 on the hinge ensures that the relative position of the temple 2 and the frame 3 is relatively stable when the temple 2 is opened or folded. When the temple 2 is opened, the tension spring 17 on the hinge assembly 1 produces elastic deformation and is applied to the temple 2, so that the temple 2 generates a clamping force.

[0075] The clamping force provided by temple 2 is F', and the moment arm of clamping force F' is d'. The elastic force of tension spring 17, i.e., the damping force F provided by the tension spring, hinders the rotation of the second component relative to the first component. The moment arm of damping force F is d. As shown in Figure 9, the moment arm d of elastic component 13 of this third hinge assembly 1 structure is collinear with the moment arm d' of temple 2. The moment arm d of elastic component 13 is located on temple 2. The moment arm of temple 2 and the moment arm of elastic component 13 are located on the same side of the rotation center and on the same straight line.

[0076] It should be noted that the force arms of the elastic components 13 mentioned above are all equivalent force arms.

[0077] The following exemplarily provides a parameter table corresponding to the torsion spring solution adopted by the elastic component 13 in some embodiments of the present disclosure.

[0078] In some embodiments of the present disclosure, at the clamping position of the temple 2 at a distance of 8 cm (±0.5) from the rotation axis, the clamping force (F') is set to vary in the range of 0.25 (±0.02) kgf (corresponding to the temple 85°) to 0.3 (±0.02) kgf (corresponding to the temple 105°), the corresponding torque range is 1.72 kgf.cm to 2.72 kgf.cm, and the torsion spring torque T range is selected from 2.0 (±0.2) kgf.cm to 2.5 (±0.2) kgf.cm;

[0079] The calculation formula for torsion spring is as follows:

[0080] Elasticity:

[0081] Torque: T (kgf cm) = F * L;

[0082] Among them: k-elastic coefficient,

[0083] The length of the torsion arm, depending on the structural space, the optional torsion arm length L is 0.5cm to 0.7cm, for example, 0.6cm can be selected. The value range of k is 0.036kgf / degree to 0.05kgf / degree. θ-torsion angle, according to the formula F=T1 / L=k*θ, F1=2.0 / 0.6=k*θ1, the torsion angle θ1 in the first position ranges from 66.7° to 92.6°. When the elastic component 13 adopts a torsion spring, when the temple 2 is in the first position, the torsion spring has a first torsion angle compared to the natural state, and the value range of the first torsion angle is 66.7° to 92.6°. As a result, when the temple 2 leaves the first position, the damping force of the torsion spring can be immediately converted into the clamping force of the clamping part of the temple 2, so that users with smaller head circumference can also feel sufficient clamping force, thereby reducing the pressure of the glasses on the user's nose bridge.

[0084] In some optional embodiments of the present disclosure, as shown in Figure 5, the two torsion arms of the torsion spring respectively abut against the second extension portion 114 and the limiting portion 121. When the second extension portion 114 abuts against the outer limiting portion 121 (that is, when the temple is in the first position), the torsion spring has a first torsion angle in the range of 66.7° to 92.6°.

[0085] When the temple 2 is in the first position, the elastic component 13 applies a first damping force to the temple 2 to hinder its rotation. When the temple 2 reaches the second position, the elastic component 13 applies a second damping force to the temple 2 to restore it to the first position. The elastic component 13 includes a torsion spring, and the ratio of the first clamping force to the first damping force is greater than 10 and less than or equal to 17.

[0086] In some optional embodiments of the present disclosure, as shown in Figure 5, when the temple 2 is in the first position, the second extension portion 114 abuts against the outer limiting portion 121, and the temple 2 is in a natural state at this time, and the clamping force provided is zero; when the temple 2 is acted upon by an external force and leaves the first position, the second extension portion 114 leaves the outer limiting portion 121, and the torsion spring immediately applies a first damping force to the temple 2 to hinder its rotation, so that the temple 2 provides a first clamping force at its clamping position; when the temple 2 reaches the second position, the second extension portion 114 abuts against the inner limiting portion 121, and the torsion spring applies a second damping force to the temple 2 to reset it to the first position, and the ratio of the first clamping force to the first damping force is greater than 10 and less than or equal to 17.

[0087] When the elastic component 13 is a torsion spring, when the temple 2 is in the first position, the frame and the temple 2 have a first angle; when the temple 2 is in the second position, the frame and the temple 2 have a second angle; the elastic coefficient of the torsion spring is the ratio of the difference between the second damping force and the first damping force to the difference between the second angle and the first angle, and the value of the elastic coefficient is greater than or equal to 0.036kgf / degree and less than or equal to 0.05kgf / degree.

[0088] When the elastic component 13 is a torsion spring, the wire diameter of the torsion spring is greater than or equal to 0.8 and less than or equal to 1.0 mm. In the embodiment of the present disclosure, the wire diameter of the torsion spring can be selected as 0.85 mm. The effective number of turns of the torsion spring is greater than or equal to 2 turns and less than or equal to 4 turns. In the embodiment of the present disclosure, the effective number of turns can be selected as 3 turns. The mean diameter of the torsion spring is greater than or equal to 2 mm. Due to the limitations of the torsion spring forming process, the inner diameter of the torsion spring with a wire diameter of more than 0.85 mm should be greater than 2 mm. In the embodiment of the present disclosure, an inner diameter of 2.5 mm is selected, that is, the mean diameter is 3.35 mm. The material of the torsion spring is stainless steel, and the rigidity modulus can be 19400.

[0089] Figure 14 shows the curve of the relationship between the clamping force and the outward angle of the temple provided by the embodiment of the elastic component 13 of the present disclosure using the above-mentioned torsion spring and the embodiment of the prior art obtained by simulation, wherein the vertical axis represents the clamping force of the temple, and the horizontal axis represents the angle between the temple and the frame. As shown in Figure 14, when the angle between the temple and the frame is 85°, the temple is in a natural state (i.e., the first position, at which the clamping force is zero); when the angle between the temple and the frame is 105°, the temple has a maximum rotation angle relative to the frame (i.e., the second position, at which the clamping force is maximum). Among them, the elastic component 13 of the prior art embodiment uses three compression springs, whose wire diameter is 0.5mm, length is 7mm, and outer diameter is 2mm. As can be seen from the above curve, the difference between the initial clamping force and the final clamping force of the embodiment of the present disclosure is small, while the difference between the initial clamping force and the final clamping force of the existing ordinary hinge is large.

[0090] By selecting a suitable torsion spring, the damping force of the torsion spring can be converted into the clamping force of the temples within a limited space, reducing the pressure of the temples on the bridge of the nose, and ensuring that the clamping force of the two temples does not increase significantly within a sufficient clamping space, so that users with different head circumferences can have a comfortable experience.

[0091] The elastic coefficient of the torsion spring can be calculated according to the following torsion spring parameter formula:

[0092] The k value is 0.046 kgf / degree, which meets the above requirements.

[0093] Where θ is the torsion angle. According to the formula F = T / L = k*θ and F1 = 2.0 / 0.6 = 0.046*θ, the first torsion angle is 73° (i.e., θ1 = 73°), corresponding to an angle of 85° between the temple 2 and the horizontal. After the torsion spring is extended 20°, the second torsion angle is 93° (i.e., θ2 = 93°), corresponding to an angle of 105° between the temple 2 and the horizontal. F2 = k*θ2 = 4.28 kgf, T2 = F2*L = 4.28*0.6 = 2.57 kgf·cm, which meets the requirement of 2.5 (±0.2) kgf·cm. F1' = T1 / d' = 2.0 / 8 = 0.25 kgf, and F2' = T2 / d' = 2.57 / 8 = 0.32 kgf, meeting the clamping force standard of 0.25 (±0.02) kgf to 0.3 (±0.02) kgf.

[0094] Referring to FIG5 , some embodiments of the present disclosure provide a schematic structural diagram of a hinge assembly 1. The hinge assembly 1 is used to hingeably connect the frame and the temple 2 of the glasses 100. The hinge assembly 1 includes: a first component 11, a second component 12, and an elastic component 13. The first component 11 is connected to the frame, or the first component 11 is part of the frame. The second component 12 is connected to the temple 2, or the second component 12 is part of the temple 2. The first component 11 and the second component 12 are rotatably connected, and the second component 12 has a first position and a second position relative to the first component 11, and the second component 12 can rotate relative to the first component 11 between the first position and the second position. The elastic component 13 is arranged between the first component 11 and the second component 12, and is used to provide a first torque to keep the second component 12 in the first position, and a second torque to rotate the second component from the second position toward the first position; wherein the ratio of the second torque to the first torque is greater than 1 and less than or equal to 1.3.

[0095] In some embodiments of the present disclosure, the first position may be a position where the second component 12 is in a naturally opened state. The second position may be a position where the second component 12 is at a maximum opening angle.

[0096] In some embodiments of the present disclosure, the first position may be a position where the elastic component 13 provides a minimum rotational torque, and the second position may be a position where the elastic component 13 provides a maximum rotational torque.

[0097] In some embodiments of the present disclosure, when the second component 12 is in the first position, the first component 11 and the second component 12 have a first angle; when the second component 12 is in the second position, the first component 11 and the second component 12 have a second angle; the first angle and the second angle differ by 15° to 25°.

[0098] When the second component 12 is opened between 15 and 25 degrees, the clamping force applied by the temples 2 on the user's head does not increase significantly, nor does the clamping force felt by the user change significantly, thereby providing a comfortable wearing experience for users with different head circumferences. In the disclosed embodiment, when the second component 12 is opened between 15 and 25 degrees, the clamping space between the two temples 2 has a large range of variation, which can meet the wearing needs of most users and provide a good wearing experience for most users.

[0099] In some embodiments of the present disclosure, the first torque is greater than or equal to 1.7 kgf·cm and less than or equal to 2.3 gf·cm. This can effectively reduce the pressure of the glasses on the user's nose bridge, conform to ergonomic design, and prevent the glasses from sliding down or falling off, providing a good wearing experience for the user.

[0100] In some embodiments of the present disclosure, the elastic member 13 includes a torsion spring. When the second member 2 is in the first position, the torsion spring has a first torsion angle relative to its natural state, and the first torsion angle is greater than or equal to 66.7 degrees and less than or equal to 92.6 degrees. Thus, as soon as the second member 2 leaves the first position, the damping force of the torsion spring is instantly converted into a clamping force at the clamping portion of the temple 2. This allows users with smaller head circumferences to feel sufficient clamping force, thereby reducing the pressure of the glasses on the user's nose bridge.

[0101] In some embodiments of the present disclosure, the elastic component 13 includes a torsion spring; the elastic coefficient of the torsion spring is the ratio of the difference between the second damping force and the first damping force to the difference between the second angle and the first angle, and the value of the elastic coefficient is greater than or equal to 0.036 kgf / degree and less than or equal to 0.05 kgf / degree.

[0102] In some embodiments of the present disclosure, the elastic component 13 is a torsion spring, the wire diameter of the torsion spring is greater than or equal to 0.8 and less than or equal to 1.0 mm, the effective number of turns is greater than or equal to 2 and less than or equal to 4, the middle diameter is greater than or equal to 2 mm, and the material of the torsion spring is stainless steel.

[0103] By selecting a suitable torsion spring, the damping force of the torsion spring can be converted into the clamping force of the temples within a limited space, reducing the pressure of the temples on the bridge of the nose, and ensuring that the clamping force of the two temples does not increase significantly within a sufficient clamping space, so that users with different head circumferences can have a comfortable experience.

[0104] The above description has been provided for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present disclosure to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A hinge assembly for hingedly connecting a frame and temple arms of glasses, the hinge assembly comprising a first component and a second component; The first component is arranged as one of the following: The first component is connected to the frame; The first component is a part of the frame; The second component is arranged as one of the following: The second component is connected to the temple arms; The second component is a part of the temple arms; Among them, The first component and the second component are rotatably connected, and the second component has a first position and a second position relative to the first component, and the second component is capable of rotating relative to the first component between the first position and the second position; An elastic component, which is arranged between the first component and the second component, for providing a first moment for keeping the second component in the first position and a second moment for rotating the second component from the second position towards the first position; wherein, the ratio of the second moment to the first moment is greater than 1 and less than or equal to 1.

3.

2. The hinge assembly according to claim 1, wherein, When the second component is in the first position, the second component and the first component have a first included angle; when the second component is in the second position, the second component and the first component have a second included angle; the difference between the first included angle and the second included angle is greater than or equal to 15 degrees and less than or equal to 25 degrees.

3. The hinge assembly according to claim 1 or 2, wherein, The first moment is greater than or equal to 1.7 kgf·cm and less than or equal to 2.3 kgf·cm.

4. The hinge assembly according to any one of claims 1-3, wherein the elastic component comprises at least one of a torsion spring, a leaf spring, a tension spring, a compression spring and a damping shaft.

5. The hinge assembly according to any one of claims 1-3, wherein the elastic component comprises a torsion spring, and the length of the torsion arm of the torsion spring is greater than or equal to 0.5 cm and less than or equal to 0.7 cm.

6. The hinge assembly according to any one of claims 1-3, wherein the elastic component comprises a torsion spring, and when the second component is in the first position, the torsion spring has a first torsion angle compared with its natural state, and the first torsion angle is greater than or equal to 66.7 degrees and less than or equal to 92.6 degrees.

7. The hinge assembly according to any one of claims 1-3, wherein, The elastic component comprises a torsion spring; the value of the elastic coefficient of the torsion spring is greater than or equal to 0.036 kgf / degree and less than or equal to 0.05 kgf / degree.

8. The hinge assembly according to any one of claims 1-3, wherein, The elastic component is a torsion spring, the wire diameter of the torsion spring is greater than or equal to 0.8 and less than or equal to 1.0 mm, the effective number of turns is greater than or equal to 2 turns and less than or equal to 4 turns, the mean diameter is greater than or equal to 2 mm, and the material of the torsion spring is stainless steel.

9. A pair of glasses, comprising: A frame for supporting optical elements; Temple arms, the temple arms being connected to the frame; And the hinge assembly according to claims 1-8, the hinge assembly being used for hingedly connecting the frame and the temple arms of the glasses so that the temple arms can rotate relative to the frame between the first position and the second position.

10. The glasses according to claim 9, wherein the temple includes a clamping portion, and when the temple leaves the first position, a first clamping force is provided at the clamping portion; when the temple reaches the second position, a second clamping force is provided at the clamping portion; the ratio of the second clamping force to the first clamping force is greater than 1 and less than or equal to 1.

3.

11. The glasses according to any one of claim 10, wherein the distance between the clamping portion and the connection of the temple and the frame is 7.5 cm to 8.5 cm.

12. The glasses according to any one of claims 10-11, wherein, The first clamping force is greater than or equal to 0.23 kgf and less than or equal to 0.27 kgf.

13. The glasses according to any one of claims 9-12, wherein, When the temple is in the first position, the angle between the temple and the frame is greater than or equal to 83 and less than or equal to 87 degrees.

14. The glasses according to any one of claims 9-13, wherein, The elastic member has a force arm, and the force arm of the elastic member adopts any one of the following arrangement methods: The force arm of the elastic member forms an angle with the force arm of the temple; The force arm of the elastic member is located on the extension line of the force arm of the temple, and the force arm of the elastic member is located on the frame; The force arm of the elastic member is collinear with the force arm of the temple, and the force arm of the elastic member is located on the temple.

15. The glasses according to any one of claims 9-14, wherein, When the temple leaves the first position, the elastic member applies a first damping force to the temple to hinder its rotation; the elastic member includes a torsion spring, and the ratio of the first clamping force to the first damping force is greater than 10 and less than or equal to 17.

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