Elastic hinge structure of glasses without slingshot core
By using a flexible hinge structure for the temples of glasses without a slingshot core, the design of the temples elastically abutting against the outer shell solves the problems of easy breakage and unstable connection of existing slingshot cores, thereby improving the stability and durability of the temples and enhancing the wearing experience.
Patent Information
- Application Number
- CN202520758674.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-21
AI Technical Summary
The existing slingshot core elastic hinge structure is prone to breakage and loosening during high-frequency opening and closing operations, resulting in poor connection stability and affecting the lifespan and wearing experience of the glasses.
The glasses feature a flexible hinge structure without a spring core. By utilizing the elastic contact design between the temple and the outer shell, the temples achieve elastic cushioning through the rotation of the temple and the flange during opening and closing, preventing breakage and wobbling, and enhancing structural stability and fatigue resistance.
It improves the stability and durability of the eyeglass temples, preventing breakage, detachment, and wobbling, thus enhancing wearing comfort and lifespan.
Smart Images
Figure CN223941185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of eyeglasses technology, and in particular to an elastic hinge structure for eyeglasses without a spring-loaded core. Background Technology
[0002] In the eyewear industry, the slingshot hinge is a key structural component commonly used to connect the frame and temples of eyeglasses. Its main function is to provide flexible opening and closing of the temples, thereby improving the comfort and stability of the glasses when worn, and effectively absorbing external impacts to reduce the probability of frame damage. This type of hinge typically includes a slingshot shell, a slingshot core, a spring, and a spring clip. One end of the slingshot core is inserted into the slingshot shell, the spring is housed within the slingshot core, and one end of the spring is fixed to a slot structure on the inner wall of the slingshot shell using a spring clip, thus forming a hinged connection with a spring-rebound function.
[0003] However, in actual use, the existing slingshot core elastic hinge structure has the following defects: structural fatigue and easy damage: during high-frequency opening and closing operations, the slingshot core is prone to breakage or loosening due to long-term stress concentration, which seriously affects the service life of the glasses.
[0004] Poor connection stability: The slingshot core has a small backward tilt angle. Once the slingshot core is worn or the assembly tolerance is not properly controlled, it is easy for it to wobble up and down or left and right in the shell, affecting the wearing experience. Utility Model Content
[0005] Therefore, it is necessary to address the problems of existing slingshot cores being prone to breakage, loosening, and wobbling after wear, and to provide a more stable, fatigue-resistant, and slingshot core-free eyeglasses elastic hinge structure that will not break, fall off, or wobble during temple rotation.
[0006] A flexible hinge structure for eyeglasses without a slingshot core includes:
[0007] Temples;
[0008] The head of the mirror is rotatably connected to the end of the temple.
[0009] The outer shell is movably mounted on the temple. The outer shell has a first side and a second side along its thickness direction. A flange protrudes from the first side of the outer shell. When the temple and the temple are in a horizontal state, the flange elastically abuts against the temple. The temple can rotate toward the first side of the outer shell and press against the flange to move the outer shell toward the middle of the temple. The temple can also rotate toward the second side of the outer shell.
[0010] The aforementioned spring-loaded, coreless eyeglasses feature a flexible hinge structure with a bent head. The front end of the head rests on the frame. When the temples are extended relative to the frame, the rear end of the head aligns horizontally with the temples, and the flange of the outer shell elastically abuts against the rear end of the head. With this structure, the temples can be flipped outwards (rotating away from the frame). In this case, the head presses against the flange, causing the outer shell to shift backwards relative to the temples, creating a cushioning effect. When the temples need to be folded, they can be flipped upwards relative to the head (rotating closer to the frame). In this case, the head does not press against the flange but abuts against the end of the outer shell. This hinge structure is more stable, has stronger fatigue resistance, and will not break, detach, or wobble during temple rotation. It also possesses good assembly precision and durability.
[0011] In one embodiment, the temple extends outwardly to provide a first leg and a second leg spaced apart, the headpiece is rotatably connected to the end of the first leg and the second leg away from the temple, and the outer shell is movably disposed on the first leg and the second leg.
[0012] In one embodiment, an elastic element is also included. The housing extends inward from the end away from the head and has a mounting cavity. The first leg and the second leg have connecting ends. The elastic element is located between the first leg and the second leg and abuts against the bottom wall of the mounting cavity and the connecting ends, respectively.
[0013] In one embodiment, the housing is provided with a first channel and a second channel, the mounting cavity is located between the first channel and the second channel, the first leg passes through the first channel, and the second leg passes through the second channel.
[0014] In one embodiment, the connecting end extends along the width direction of the temple and is provided with a limiting block. The temple rotates and presses against the flange, causing the elastic element to be compressed, and the outer shell abuts against the limiting block.
[0015] In one embodiment, a nail head is also included, one end of which is inserted into the housing and the other end abuts against the head.
[0016] In one embodiment, the nail head includes a cylindrical body and an end cap disposed at the end of the body, the cross-sectional area of the end cap being larger than the cross-sectional area of the body, the elastic element being a spring, the body being inserted into the outer shell, and the spring being sleeved on the body, the end cap abutting against the nail head.
[0017] In one embodiment, a protrusion is provided on one side of the temple, and when the temple and the temple are in a horizontal position, the protrusion abuts against the flange.
[0018] In one embodiment, the outer surface of the bump is flush with the outer surface of the flange.
[0019] In one embodiment, a screw is also included, which passes through the head and the end of the temple to rotatably connect the head and the temple. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of an embodiment of the hinge structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the first state of the hinge structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the second state of the hinge structure of this utility model;
[0023] Figure 4 This is a schematic diagram of a portion of the hinge structure of this utility model;
[0024] Figure 5 This is an exploded structural diagram of the hinge structure of this utility model.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 100. Elastic hinge structure for eyeglasses without a spring-loaded core; 1. Temple; 11. First temple; 12. Second temple; 13. Connecting end; 14. Limiting block; 2. Head; 21. Protrusion; 3. Outer shell; 31. Flange; 32. Mounting cavity; 33. First channel; 34. Second channel; 4. Elastic element; 5. Nail head; 51. Body; 52. End cap; 6. Screw. Detailed Implementation
[0027] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described clearly and completely below with reference to the accompanying drawings. Obviously, the specific details described below are only a part of the embodiments of this utility model, and this utility model can be implemented in many other embodiments different from those described herein. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0030] Please see Figures 1 to 3 In one embodiment, a springless eyeglasses elastic hinge structure 100 includes: a temple 1, a headband 2, and a housing 3. The headband 2 is bent, with its front end attached to the frame and its rear end rotatably connected to the end of the temple 1. The housing 3 is movably mounted on the temple 1, and has an upper side and a lower side along its thickness direction. A flange 31 protrudes from the lower side of the housing 3, and when the headband 2 and temple 1 are horizontal, the flange 31 elastically abuts against the headband 2. The headband 2 can rotate towards the lower side of the housing 3 and press against the flange 31 to move the housing 3 toward the middle of the temple 1, and the headband 2 can also rotate towards the upper side of the housing 3.
[0031] In practical applications, with the temple 1 extended relative to the frame, the rear end of the headpiece 2 is aligned horizontally with the temple 1, and the flange 31 of the outer shell 3 elastically abuts against the rear end of the headpiece 2. With this structure, the temple 1 can be flipped outwards (i.e., rotated away from the frame). In this case, the headpiece 2 presses against the flange 31, causing the outer shell 3 to shift backwards relative to the temple 1, creating an elastic buffer effect and preventing breakage. When the temple 1 needs to be folded, it can be flipped upwards relative to the headpiece 2 (i.e., rotated closer to the frame). In this case, the headpiece 2 does not press against the flange 31 but abuts against the end of the outer shell 3. This hinge structure is more stable and has stronger fatigue resistance. Because the outer shell 3 and the headpiece 2 elastically abut against each other, the temple 1 will not break, fall off, or wobble during rotation and use. Furthermore, this structure possesses good assembly precision and durability.
[0032] It should be noted that since the head 2 and temple 1 can rotate relative to each other, for ease of operation in practice, please refer to [the relevant documentation / reference needed]. Figure 2 Typically, the temple 1 is rotated directly. The angle at which temple 1 is tilted downwards and outwards relative to the headpiece 2 can range from 0° to 35°. Please refer to [link / reference]. Figure 3The temple 1 can be flipped upward relative to the head 2 at an angle ranging from 0° to 90°. When it is at 90°, the temple 1 is folded and stored.
[0033] Please see Figure 4 In another embodiment, the end of the temple 1 extends outward and is provided with a first leg 11 and a second leg 12 spaced apart. The head 2 is rotatably connected to the end of the first leg 11 and the second leg 12 away from the temple 1, and the outer shell 3 is movably disposed on the first leg 11 and the second leg 12.
[0034] Please see Figure 1 and Figure 4 This utility model of a springless eyeglasses elastic hinge structure 100 also includes an elastic element 4. The outer shell 3 extends inward from the end away from the headstock 2 and has a mounting cavity 32. The front ends of the first leg 11 and the second leg 12 are connected at a connecting end 13. The ends of the first leg 11 and the second leg 12 are rotatably connected to the headstock 2. The elastic element 4 is located between the first leg 11 and the second leg 12 and abuts against the bottom wall of the mounting cavity 32 and the connecting end 13, respectively. The headstock 2 can press against the flange 31, causing the elastic element 4 to be compressed. The outer shell 3 moves towards the middle of the temple 1, forming an effective elastic buffer structure, and the outer shell 3 can automatically return to its original position.
[0035] Please see Figure 3 and Figure 5 In another embodiment, the elastic hinge structure 100 of the non-slingshot eyeglasses also includes a nail head 5, one end of which is inserted into the outer shell 3, and the other end abuts against the temple head 2. Further, the elastic element 4 can be a spring. The nail head 5 includes a cylindrical body 51 and a disc-shaped end cap 52 disposed at the top of the body 51. The diameter of the end cap 52 is larger than the diameter of the body 51. The bottom end of the body 51 is inserted into the outer shell 3 and extends into the mounting cavity 32. The spring is sleeved on the bottom end of the body 51, and the end cap 52 abuts against the temple head 2. This structure allows the end cap 52 of the nail head 5 to act as a friction medium against the temple head 2 when the temple head 2 and the temple 1 rotate relative to each other, and the body 51 can fix the spring, making the elastic movement of the outer shell 3 more stable.
[0036] Please see Figure 4 In one embodiment of the mating of the outer shell 3 and the temple 1, the upper and lower sides of the outer shell 3 are respectively provided with a first channel 33 and a second channel 34. The mounting cavity 32 is located between the first channel 33 and the second channel 34. The first leg 11 passes through the first channel 33, the second leg 12 passes through the second channel 34, and the screw 6 passes through the head 2, the end of the first leg 11, and the end of the second leg 12, so that the head 2 and the temple 1 can be stably rotated and connected.
[0037] In another embodiment, a limiting block 14 is provided at the connecting end 13 of the first leg 11 and the second leg 12 in the vertical direction. The head 2 rotates and presses against the flange 31, so that the spring is compressed and the outer shell 3 abuts against the limiting block 14. The movement of the outer shell 3 is limited by the limiting block 14.
[0038] Please see Figure 2 , Figure 3 and Figure 5 The lower side of the headpiece 2 also has a protrusion 21. When the headpiece 2 and the temple 1 are in a horizontal state, the protrusion 21 abuts against the flange 31. When the temple 1 is turned outward, the protrusion 21 pushes the flange 31, causing the outer shell 3 to move toward the middle of the temple 1 and finally abut against the limiting block 14, and the spring is compressed.
[0039] To ensure the aesthetics of the structure and to make the flange 31 move more stably and smoothly, the lower side of the protrusion 21 is flush with the lower side of the flange 31.
[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0041] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications, substitutions, and improvements without departing from the concept of this utility model, and these should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the claims.
Claims
1. A flexible hinge structure for eyeglasses without a slingshot core, characterized in that, include: Temples; The head of the mirror is rotatably connected to the end of the temple. The outer shell is movably mounted on the temple. The outer shell has a first side and a second side along its thickness direction. A flange protrudes from the first side of the outer shell. When the temple and the temple are in a horizontal state, the flange elastically abuts against the temple. The temple can rotate toward the first side of the outer shell and press against the flange to move the outer shell toward the middle of the temple. The temple can also rotate toward the second side of the outer shell.
2. The elastic hinge structure for eyeglasses without a slingshot core according to claim 1, characterized in that, The temple of the glasses extends outward from the end and is provided with a first leg and a second leg spaced apart. The head is rotatably connected to the end of the first leg and the second leg away from the temple. The outer shell is movably disposed on the first leg and the second leg.
3. The elastic hinge structure for eyeglasses without a slingshot core according to claim 2, characterized in that, It also includes an elastic element, and the outer shell extends inward from the end away from the head to form a mounting cavity. The first leg and the second leg have connecting ends. The elastic element is located between the first leg and the second leg and abuts against the bottom wall of the mounting cavity and the connecting ends, respectively.
4. The elastic hinge structure for eyeglasses without a slingshot core according to claim 3, characterized in that, The outer shell is provided with a first channel and a second channel, the mounting cavity is located between the first channel and the second channel, the first leg passes through the first channel, and the second leg passes through the second channel.
5. The elastic hinge structure for eyeglasses without a slingshot core according to claim 3, characterized in that, The connecting end extends along the width direction of the temple and is provided with a limiting block. The head rotates and presses against the flange, so that the elastic element is compressed, and the outer shell abuts against the limiting block.
6. The elastic hinge structure for eyeglasses without a slingshot core according to claim 3, characterized in that, It also includes a nail head, one end of which is inserted into the outer casing and the other end of which abuts against the head.
7. The elastic hinge structure for eyeglasses without a slingshot core according to claim 6, characterized in that, The nail head includes a cylindrical body and an end cap located at the end of the body. The cross-sectional area of the end cap is larger than that of the body. The elastic element is a spring. The body is inserted into the outer shell, and the spring is sleeved on the body. The end cap abuts against the nail head.
8. The elastic hinge structure for eyeglasses without a slingshot core according to claim 1, characterized in that, A protrusion is provided on one side of the temple, and when the temple and the temple are in a horizontal position, the protrusion abuts against the flange.
9. The elastic hinge structure for eyeglasses without a slingshot core according to claim 8, characterized in that, The outer surface of the protrusion is flush with the outer surface of the flange.
10. The elastic hinge structure for eyeglasses without a slingshot core according to claim 1, characterized in that, It also includes screws that pass through the head and the end of the temple, so that the head and the temple are rotatably connected.