Glasses leg hinging structure

Abstract

The utility model relates to a glasses leg hinging structure which comprises a glasses frame end and a glasses leg, a fixing seat is arranged on the rear side of the glasses frame end, the fixing seat comprises a fixing part and a connecting end, a hinging groove is formed in the rear end of the connecting end, an elastic extending part is arranged on the inner side of the glasses leg, and a connecting part is arranged at the rear end of the elastic extending part. The elastic extension parts and the glasses legs are arranged on the inner side and the outer side of the hinge grooves respectively, hinge parts are arranged on the inner sides of the front ends of the glasses legs, the hinge parts are arranged in the hinge grooves and hinged to the connecting ends through connecting pieces, connecting holes are formed in the connecting ends, hinge holes are formed in the hinge parts, and positioning convex parts are arranged in the hinge grooves. The inner side of the elastic extending part is attached to the outer side of the positioning protruding part, and the distance between the positioning front end and the inner wall of the front end of the hinge groove is larger than the width of the elastic extending part. By adopting the technical scheme, stress is prevented from being concentrated on a single fragile point; and the elastic extension part is slightly deformed, so that the hinge structure is further protected.

Description

Technical Field

[0001] This utility model belongs to the field of eyeglasses technology, and in particular relates to a hinge structure for temples. Background Technology

[0002] Eyeglasses mainly consist of the frame, temples, and shanks, with the temples and shanks typically connected by hinges. Traditional hinges are simple hinges, whose rotation relies entirely on the tight fit between a pin and a pivot hole. When the glasses are accidentally pulled, squeezed, or subjected to torque when the wearer puts them on or takes them off with one hand, all the force is concentrated in this weakest area around the pin hole, making the hinge prone to breakage over time. Furthermore, with prolonged use, micro-wear occurs between the metal parts, causing the pivot hole to gradually enlarge and become oval. Simultaneously, the pin itself may also become thinner. These small dimensional changes accumulate, resulting in loose, wobbly temples that cannot fit snugly against the head, affecting stability and comfort. To ensure strength, traditional hinges typically use thicker metal or larger hinges. However, this increases the overall weight of the glasses, putting pressure on the bridge of the nose and ears, making them very uncomfortable to wear for extended periods. Utility Model Content

[0003] In summary, to overcome the shortcomings of the prior art, this utility model provides a hinged structure for the temple of a pair of glasses.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a temple hinge structure, comprising a frame end and a temple, wherein a fixing seat is provided on the rear side of the frame end, the fixing seat includes a fixing part fixedly connected to the frame end and a connecting end hinged to the temple, the rear end of the connecting end is provided with a hinge groove, an elastic extension part parallel to the temple is provided on the inner side of the temple, the rear end of the elastic extension part is provided with a connecting part for connecting the elastic extension part and the inner side of the temple, the elastic extension part and the temple are respectively provided on the inner and outer sides of the hinge groove, and the front inner side of the temple is provided with a hinge groove. A hinge portion with a height adapted to the mounting groove is provided. The hinge portion is disposed in the hinge groove and is hinged to the connecting end through a connector. The connecting end is provided with a connecting hole communicating with the hinge groove. The hinge portion is provided with a hinge hole adapted to the connector. A positioning protrusion is provided in the hinge groove. The positioning protrusion is disposed between the connector and the elastic extension portion. When the temple is in the extended state, the inner side of the elastic extension portion is in contact with the outer side of the positioning protrusion. The end of the positioning protrusion corresponding to the end of the frame is the positioning front end. The distance between the positioning front end and the inner wall of the front end of the hinge groove is greater than the width of the elastic extension portion.

[0005] By adopting the above technical solution and setting a positioning protrusion, quick and easy positioning and installation are facilitated. Simultaneously, when the temple is extended to the normal operating angle, the inner side of the elastic extension will fit against the outer side of the positioning protrusion, preventing the temple from rotating further outward. The positioning protrusion locks the maximum extension angle of the temple within a safe range, fundamentally avoiding hardware damage caused by accidental violent operation, and greatly improving the product's durability and reliability. Furthermore, the temple and mounting base form a forked, U-shaped structure with elastic deformation. When subjected to external force, the force will be distributed through the two arms of the forked structure and the middle... The pins distribute and bear the load together, greatly avoiding stress concentration on a single weak point, thus fundamentally solving the problem of hinge root breakage; when the temple quickly extends to the end, the elastic extension undergoes a slight deformation, absorbing some of the impact energy and creating a "soft landing" effect, further protecting the hinge structure; the distance between the positioning front end and the inner wall of the hinge groove front end is greater than the width of the elastic extension. This size design ensures that the elastic extension has enough space when moving and can accurately contact the positioning protrusion without interfering with the inner wall of the hinge groove front end.

[0006] The present invention further provides that the distance between the positioning front end and the connecting end rear end is adapted to the distance between the elastic extension and the temple.

[0007] By adopting the above technical solution, the "matching" of the two spacings means that when the temple is rotated to the unfolded state, the elastic extension will fit tightly with the positioning protrusion with "zero gap". This is equivalent to applying a continuous and flexible pre-tightening force to the end position of the unfolded temple, thereby improving the stability of the temple in the unfolded state.

[0008] The present invention further includes a limiting part at a 90-degree angle to the positioning protrusion at the positioning front end. When the temple is in the retracted state, the inner side of the elastic extension part is in contact with the front end face of the limiting part.

[0009] By adopting the above technical solution, when the temple rotates inward to the retracted state, the outer side of the elastic extension will eventually fit tightly against the front end face of the limiting part. This 90-degree angled end face acts as a rigid mechanical stop, setting a precise endpoint for the temple's retraction stroke. This ensures that the temple stays at the same preset angle each time it retracts, keeping both temples symmetrical and neat, preventing over-retraction or under-retraction. This limiting part, together with the previously analyzed positioning protrusion, forms a complete motion range control system. This design provides bidirectional rigid protection for the entire rotation range of the temple (from fully extended to fully retracted). The positioning protrusion protects the temple from over-extension and damage to the hinge, while the limiting part protects the temple from over-retraction and prevents the temple from impacting or squeezing the front of the frame. This forms a "full-stroke limiting" system, greatly enhancing the reliability and lifespan of the hinge structure in various usage scenarios.

[0010] The present invention is further provided that the height of the positioning protrusion and the limiting part are adapted to the height of the hinge groove, and the upper and lower surfaces are respectively connected by the hinge groove.

[0011] By adopting the above technical solution, the force is evenly distributed throughout the entire connection end structure, which greatly enhances the impact resistance and fatigue resistance.

[0012] The present invention is further provided with: an avoidance notch is provided on the outer side of the connecting end, the front end of the temple is disposed in the avoidance notch, and a gap is provided between the inner sidewall of the avoidance notch and the inner wall of the front end of the temple.

[0013] By adopting the above technical solution, the temple is set in the clearance notch, and the hinge is connected to the temple, which reduces the space. When the temple is in the unfolded state, the outer side of the temple is flush with the outer side of the frame end, making the structure more aesthetically pleasing. The clearance notch avoids movement interference and ensures that the temple is very smooth and unobstructed throughout the entire opening and closing stroke.

[0014] The present invention further includes the following feature: when the temple is in the extended state, an expansion gap is provided between the front end of the temple and the front wall of the clearance notch to allow the temple to expand outward by more than 90 degrees.

[0015] By adopting the above technical solution, most people's widest point on their head (near the temples) is actually wider than the front of the frame. If the temples are rigidly locked after being extended 90 degrees, they will continuously "clamp" the head inwards when wearing glasses, causing discomfort such as pinching and pressure on the temples. "Expanding the gap" provides the temples with an additional, slight outward expansion. When the glasses are on the head, the temples can automatically and slightly expand outwards within the allowable range of this gap, adapting to different users' head circumference and head shape, reducing the pressure on the head, and achieving a comfortable wearing experience that is "seemingly tight but actually pressure-free." At the same time, because of the better fit, the glasses are also more securely worn.

[0016] The present invention further comprises: the connecting part includes a first connecting segment and a second connecting segment, the first connecting segment is arranged parallel to the elastic extension, the outer side of the first connecting segment is connected to the inner side of the temple, and the two ends of the second connecting segment are respectively connected to the front end of the first connecting segment and the rear end of the elastic extension, and the first connecting segment, the second connecting segment and the elastic extension are arranged in a Z-shape.

[0017] By adopting the above technical solution, the first connecting section (fixed end), the second connecting section (lever arm), and the elastic extension (functional end) are combined into a highly efficient elastic lever system. When the temple opens and closes, the force is transmitted through the second connecting section, causing it to undergo a slight elastic deformation. This Z-shaped bend acts like a highly efficient spring, providing ample and controllable buffer space for the slight rotation of the temple, avoiding harsh impacts. The Z-shaped design distributes the bending stress more evenly throughout the entire "Z"-shaped area. This structure can better withstand thousands of opening and closing cycles of the temple, significantly improving the hinge's resistance to metal fatigue and extending its service life. Through the "Z-shaped" three-dimensional folding layout, multiple sub-functions such as fixing, force transmission, elastic deformation, and functional contact are integrated within the very limited space on the inner side of the temple. This makes the entire complex elastic reset system very compact and does not occupy extra space, maintaining the simplicity of the temple lines and the overall thinness, thus improving the lightweight and miniaturization of the glasses.

[0018] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples. Attached Figure Description

[0019] Figure 1 This is a partial perspective view of an embodiment of the present utility model.

[0020] Figure 2 This is a partial cross-sectional view of an embodiment of the present utility model.

[0021] Figure 3 This is an exploded view of an embodiment of the present utility model.

[0022] Reference numerals: 1. Frame end, 11. Fixing part, 12. Connecting end, 121. Connecting hole, 13. Hinge groove, 14. Positioning protrusion, 141. Positioning front end, 15. Limiting part, 16. Clearance notch, 2. Temple, 21. Elastic extension part, 22. Connecting part, 221. First connecting segment, 222. Second connecting segment, 23. Hinge part, 231. Hinge hole, 3. Enlarged gap. Detailed Implementation

[0023] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0024] See appendix Figure 1-3 This embodiment discloses a temple hinge structure, including a frame end 1 and a temple 2. A fixing seat is provided on the rear side of the frame end 1. The fixing seat includes a fixing part 11 fixedly connected to the frame end 1 and a connecting end 12 hinged to the temple 2. A hinge groove 13 is provided at the rear end of the connecting end 12. An elastic extension part 21 is provided on the inner side of the temple 2, parallel to the temple 2. A connecting part 22 for connecting the elastic extension part 21 and the inner side of the temple 2 is provided at the rear end of the elastic extension part 21. The elastic extension part 21 and the temple 2 are respectively provided on the inner and outer sides of the hinge groove 13. A hinge part 23 adapted to the height of the hinge groove 13 is provided on the inner side of the front end of the temple 2. The hinge portion 23 is disposed within the hinge groove 13 and is hinged to the connecting end 12 via a connector. The connecting end 12 is provided with a connecting hole 121 communicating with the hinge groove 13. The hinge portion 23 is provided with a hinge hole 231 adapted to the connector. A positioning protrusion 14 is provided within the hinge groove 13. The positioning protrusion 14 is disposed between the connector and the elastic extension portion 21. When the temple 2 is in the unfolded state, the inner side of the elastic extension portion 21 is in contact with the outer side of the positioning protrusion 14. The end of the positioning protrusion 14 corresponding to the end of the frame 1 is the positioning front end 141. The distance between the positioning front end 141 and the inner wall of the front end of the hinge groove 13 is greater than the width of the elastic extension portion 21.

[0025] In this embodiment, the distance between the positioning front end 141 and the rear end of the connecting end 12 is adapted to the distance between the elastic extension 21 and the temple 2.

[0026] In this embodiment, the positioning front end 141 is provided with a limiting part 15 that is set at a 90-degree angle to the positioning protrusion 14. When the temple 2 is in the retracted state, the inner side of the elastic extension 21 is in contact with the front end face of the limiting part 15.

[0027] In this embodiment, the heights of the positioning protrusion 14 and the limiting part 15 are adapted to the height of the hinge groove 13, and the upper and lower surfaces are respectively connected to the hinge groove 13.

[0028] This embodiment further includes the following configuration: an avoidance notch 16 is provided on the outer side of the connecting end 12, the front end of the temple 2 is disposed within the avoidance notch 16, and a gap is provided between the inner sidewall of the avoidance notch 16 and the inner wall of the front end of the temple 2.

[0029] This embodiment further includes the following configuration: when the temple 2 is in the extended state, an enlarged gap 3 is provided between the front end of the temple 2 and the front end wall of the clearance notch 16 to allow the temple 2 to expand outward by more than 90 degrees.

[0030] This embodiment further includes the following configuration: the connecting portion 22 includes a first connecting segment 221 and a second connecting segment 222. The first connecting segment 221 is arranged parallel to the elastic extension portion 21. The outer side of the first connecting segment 221 is connected to the inner side of the temple 2. The two ends of the second connecting segment 222 are respectively connected to the front end of the first connecting segment 221 and the rear end of the elastic extension portion 21. The first connecting segment 221, the second connecting segment 222 and the elastic extension portion 21 are arranged in a Z-shape.

[0031] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. The term "between" mentioned above does not only refer to the orientation or position, but also includes the interaction between different parts.

[0032] Although this document frequently uses terms such as frame end 1, fixing part 11, connecting end 12, connecting hole 121, hinge groove 13, positioning protrusion 14, positioning front end 141, limiting part 15, clearance notch 16, temple 2, elastic extension part 21, connecting part 22, first connecting segment 221, second connecting segment 222, hinge part 23, hinge hole 231, and enlarged gap 3, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A hinged structure for mirror temples, characterized in that: The frame includes a frame end and temples. A fixing base is provided at the rear of the frame end. The fixing base includes a fixing part fixedly connected to the frame end and a connecting end hinged to the temple. A hinge groove is provided at the rear end of the connecting end. An elastic extension is provided on the inner side of the temple, parallel to the temple. A connecting part for connecting the elastic extension to the inner side of the temple is provided at the rear end of the elastic extension. The elastic extension and the temple are respectively located on the inner and outer sides of the hinge groove. A hinge part adapted to the height of the hinge groove is provided on the inner side of the front end of the temple. The part is set in the hinge groove and is hinged to the connecting end through the connector. The connecting end is provided with a connecting hole that communicates with the hinge groove. The hinge part is provided with a hinge hole that matches the connector. A positioning protrusion is provided in the hinge groove. The positioning protrusion is located between the connector and the elastic extension. When the temple is in the unfolded state, the inner side of the elastic extension is in contact with the outer side of the positioning protrusion. The end of the positioning protrusion corresponding to the end of the frame is the positioning front end. The distance between the positioning front end and the inner wall of the front end of the hinge groove is greater than the width of the elastic extension.

2. The hinge structure for a temple of a pair of glasses according to claim 1, characterized in that: The distance between the positioning front end and the connecting end rear end is adapted to the distance between the elastic extension and the temple.

3. The temple hinge structure according to claim 1, characterized in that: The positioning front end is provided with a limiting part that is set at a 90-degree angle with the positioning protrusion. When the temple is in the retracted state, the inner side of the elastic extension part is in contact with the front end face of the limiting part.

4. The temple hinge structure according to claim 3, characterized in that: The heights of the positioning protrusion and the limiting part are adapted to the height of the hinge groove, and the upper and lower surfaces are connected by the hinge groove.

5. The hinge structure for a temple of a pair of glasses according to claim 1, characterized in that: An avoidance notch is provided on the outer side of the connecting end, and the front end of the temple is located within the avoidance notch. A gap is provided between the inner sidewall of the avoidance notch and the inner wall of the front end of the temple.

6. The hinge structure for a temple of a pair of glasses according to claim 5, characterized in that: When the temple is in the extended state, an enlarged gap is provided between the front end of the temple and the front wall of the clearance notch to allow the temple to expand outward by more than 90 degrees.

7. The hinge structure for a temple of a pair of glasses according to claim 1, characterized in that: The connecting part includes a first connecting segment and a second connecting segment. The first connecting segment is arranged parallel to the elastic extension. The outer side of the first connecting segment is connected to the inner side of the temple. The two ends of the second connecting segment are respectively connected to the front end of the first connecting segment and the rear end of the elastic extension. The first connecting segment, the second connecting segment and the elastic extension are arranged in a Z-shape.

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