A new type of glasses hinge structure
By adopting a detachable connection design in the eyeglass hinge structure, the temples and hinge components can be detachably connected, solving the problem that the temples and hinge components cannot be replaced separately in the prior art, reducing maintenance costs and material waste.
Patent Information
- Application Number
- CN202620947178.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-25
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2036-06-25
AI Technical Summary
In existing eyeglass hinge structures, the fixed connection between the temple and the hinge assembly means that when the spring fails due to fatigue or the temple is damaged, it cannot be replaced separately, resulting in high maintenance costs and serious material waste.
The design features a detachable connection. By setting mounting holes and anti-detachment protrusions on the temples, combined with the limiting structure of the front and rear hinges, the temples and hinge components can be detachably connected, allowing for individual replacement of the temples or springs.
It reduces maintenance costs, minimizes material waste, improves the stability and flexibility of the temples and hinge components, and simplifies the maintenance process.
Smart Images
Figure CN224594948U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of eyeglasses technology, and in particular to a novel eyeglasses hinge structure. Background Technology
[0002] In the hinge structure of eyeglasses, the frame and temples are typically connected by a hinge assembly to allow the temples to unfold and fold. To improve opening and closing stability, some designs incorporate a spring-loaded piece at the end of the temple near the frame. The elasticity of the spring helps maintain stability when the temple is fully unfolded or folded. However, in existing eyeglass hinge structures, the temple and hinge assembly are generally fixedly connected, for example, by welding, riveting, or integral molding to fix the rear hinge to the end of the temple. For example, a high-stability eyeglass hinge structure disclosed in application number 202322002881.8 mentions in its specification that "the end of the temple near the spring is welded to the second connecting part (corresponding to the rear hinge in this application)." While this fixed connection method is simple in structure, it has a prominent problem in practical use: the spring, as an elastic component subjected to frequent stress, is prone to fatigue failure, weakening of elasticity, or even breakage after long-term use; at the same time, the temple itself may also be damaged by accidental drops, compression, or other external forces. Because the rear hinge is a fixed connection to the temple that cannot be detached, when the spring fails or the temple is damaged, the temple or spring cannot be replaced separately. The entire frame along with the hinge assembly must be discarded, resulting in high repair costs and serious material waste. Utility Model Content
[0003] The purpose of this invention is to provide a novel eyeglass hinge structure to solve the problems mentioned in the background art.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A novel eyeglass hinge structure includes a frame and temples, which are rotatably connected by a hinge assembly. An integrally formed spring extends from one end of the temple near the frame. The hinge assembly includes a front hinge and a rear hinge, which are rotatably connected. The frame is connected to the front hinge, and the temple is connected to the rear hinge. Adjacent sidewalls of the front hinge have a first abutment surface and a second abutment surface, respectively. When the temples are in a fully extended or fully folded state, the spring adheres to the first or second abutment surface using its own elasticity, thereby stably holding the temples in their corresponding positions. The characteristic feature is that: The temple has an assembly hole along its length. The rear hinge is fixedly provided with an outwardly protruding anti-slip protrusion at the end away from the front hinge. The rear hinge, which is not connected to the front hinge, can be inserted into the assembly hole alone. After the rear hinge is inserted into the assembly hole alone, the anti-slip protrusion can abut against the inside of the temple. The front hinge, which is connected to the rear hinge, can also abut against the inside of the temple, thereby limiting the inner side of the temple. The temple has an integrally formed bent recess at the position corresponding to the mounting hole. The bent recess bends inward toward the temple. The space formed by the bent recess constitutes a local enlargement area of the mounting hole. The bent recess has a closed curved surface. The rear hinge seat limits the outer side of the temple by contacting and fitting with the closed curved surface.
[0005] By adopting the above technical solution, the anti-detachment protrusion on the rear hinge and the front hinge together abut against the inner side of the temple. At the same time, the integrally formed bent recess on the temple contacts and fits with the rear hinge to limit the outer side of the temple. This achieves a detachable connection between the temple and the hinge assembly. When the spring fails due to fatigue or the temple is damaged, it is not necessary to discard the entire frame and hinge assembly. Only the temple needs to be replaced, which greatly reduces maintenance costs and material waste.
[0006] A further feature is that a pressure-bearing boss is fixedly provided on the inner side of the rear hinge seat, and the pressure-bearing boss can contact and fit with the closed curved surface.
[0007] By adopting the above technical solution, the support and limiting effect of the rear hinge on the outside of the temple is further enhanced, which can effectively prevent the temple from loosening or shaking during use.
[0008] A further feature is that the end of the anti-detachment protrusion has an arc-shaped first guide surface.
[0009] By adopting the above technical solution, the first guide surface can make the anti-detachment protrusion smoothly pass over the edge of the assembly hole, which facilitates the assembly operation and prevents jamming or damage during the assembly process.
[0010] A further feature is that the front hinge seat has a hinge interface, and the rear hinge seat passes through the hinge interface and is rotatably connected to the front hinge seat via a pin.
[0011] By adopting the above technical solution, assembly is convenient, ensuring the flexible rotation of the temples relative to the frame and facilitating the subsequent removal of the pins to separate the front and rear hinges, thereby enabling quick replacement of the temples.
[0012] A further feature is that the first contact surface and the second contact surface are transitioned by an arc-shaped second guide surface.
[0013] By adopting the above technical solution, the spring can slide smoothly along the second guide surface during the opening and folding of the temple, reducing the jamming and wear between the spring and the first and second contact surfaces, and improving the smoothness of the opening and closing feel.
[0014] A further provision is that the formed area of the spring on the temple at least covers a continuous range extending from the end of the temple near the frame to the end of the bent recess near the frame.
[0015] By adopting the above technical solution, the spring has sufficient elastic length and deformation capability, thereby ensuring that the spring can reliably fit against the first or second contact surface, so that the temple can be stably maintained in the fully extended or fully folded state.
[0016] In summary, this utility model has the following beneficial effects: it realizes a detachable connection between the temple and the hinge assembly. When the spring fails due to fatigue or the temple is damaged, it is not necessary to discard the entire frame and hinge assembly. Only the pin needs to be removed and the temple replaced, which greatly reduces maintenance costs and material waste. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure when the temples are in the fully extended state in the embodiment; Figure 2 This is a schematic diagram of the structure when the temples are in a fully folded state in the embodiment; Figure 3 for Figure 1 Enlarged view of section A; Figure 4 This is a partial structural diagram of the hinge assembly, spring clip, and temple in the embodiment; Figure 5 This is an exploded view of the hinge assembly, spring, and temple portion in the embodiment (the front hinge seat is hidden).
[0018] In the diagram: 11, frame; 12, temple; 21, front hinge; 211, first abutment surface; 212, second abutment surface; 31, rear hinge; 311, anti-slip protrusion; 3111, first guide surface; 312, pressure-bearing boss; 41, spring; 51, mounting hole; 61, bent recessed section; 611, closed surface; 71, hinge joint. Detailed Implementation
[0019] The present invention will be further described in detail below with reference to the accompanying drawings.
[0020] like Figures 1-5 As shown; This embodiment discloses a novel eyeglass hinge structure, including a frame 11 and temples 12, wherein the frame 11 and temples 12 are rotatably connected by a hinge assembly. At the end of the temple 12 near the frame 11, an integrally formed spring piece 41 extends out, and the spring piece 41 is elastic. The hinge assembly specifically includes a front hinge seat 21 and a rear hinge seat 31. The front hinge seat 21 has a hinge interface 71, and the rear hinge seat 31 passes into the hinge interface 71 and is rotatably connected to the front hinge seat 21 by a pin. The front hinge seat 21 is fixedly connected to the frame 11, while the rear hinge seat 31 is connected to the temples 12. The two adjacent sidewalls of the front hinge 21 are respectively formed with a first abutment surface 211 and a second abutment surface 212. When the temple 12 rotates relative to the frame 11 to the fully extended state, the spring piece 41 adheres to the first abutment surface 211 by its own elasticity; when the temple 12 rotates to the fully folded state, the spring piece 41 adheres to the second abutment surface 212 by its own elasticity. In this way, through the elastic contact between the spring piece 41 and the first abutment surface 211 and the second abutment surface 212, the temple 12 can be stably kept in the fully extended or fully folded position, avoiding random shaking.
[0021] To achieve a detachable connection between the temple 12 and the rear hinge 31, thereby facilitating the individual replacement of damaged temple 12 or spring 41, this embodiment provides a mounting hole 51 along the length of the temple 12, extending through both the inner and outer sides of the temple 12. A protruding anti-detachment protrusion 311 is fixedly provided at the end of the rear hinge 31 away from the front hinge 21, and the end of the anti-detachment protrusion 311 has an arc-shaped first guide surface 3111. When not connected to the front hinge 21, the rear hinge 31 can be inserted into the mounting hole 51 independently. During this insertion, the anti-detachment protrusion 311 smoothly passes over the edge of the mounting hole 51 using its arc-shaped guide surface and abuts against the inner wall of the temple 12, preventing the rear hinge 31 from detaching from the mounting hole 51. Subsequently, after the front hinge 21 and the rear hinge 31 are connected by a pin, the overall structure of the front hinge 21 will also abut against the inner side of the temple 12, thus cooperating with the anti-slip protrusion 311 to limit the inner side of the temple 12. Furthermore, the temple 12 also has an integrally formed bent recessed section 61 at the position corresponding to the mounting hole 51. The bent recessed section 61 bends inward towards the temple 12, that is, it is recessed towards the side facing the wearer's head. The internal space formed by the bent recessed section 61 constitutes a local enlarged diameter area of the mounting hole 51, and the bent recessed section 61 has a closed curved surface 611. When the rear hinge 31 is assembled in place, the closed curved surface 611 on the bent recessed section 61 can contact and fit against the rear hinge 31, thereby forming a limiting effect on the outer side of the temple 12, preventing the temple 12 from separating from the rear hinge 31, and thus achieving a stable connection between the temple 12 and the rear hinge 31.
[0022] As a further preferred structure, a pressure-bearing boss 312 is fixedly provided on the inner side of the rear hinge 31. The shape of the pressure-bearing boss 312 matches the closed curved surface 611 of the bent recessed section 61. When the rear hinge 31 is connected to the temple 12, the pressure-bearing boss 312 can just make contact with the closed curved surface 611, thereby further enhancing the support and limiting effect of the rear hinge 31 on the outside of the temple 12 and preventing the temple 12 from loosening or shaking during use. In addition, in order to improve the smoothness of the spring 41 when switching between unfolding and folding, the first abutment surface 211 and the second abutment surface 212 on the front hinge 21 are transitioned by an arc-shaped second guide surface, so that the spring 41 can slide smoothly along the second guide surface during rotation, reducing jamming and wear.
[0023] Regarding the structure of the spring 41, the formed area of the spring 41 on the temple 12 covers at least a continuous range from the end of the temple 12 near the frame 11 to the end of the bent recessed section 61 near the frame 11, ensuring that the spring 41 has sufficient elastic length and deformation capability.
[0024] During actual assembly, the rear hinge 31, which is not connected to the front hinge 21, is first inserted separately from the outside of the temple 12 into the assembly hole 51 opened on the temple 12. Since the anti-slip protrusion 311 of the rear hinge 31 has an arc-shaped first guide surface 3111 at its end, the angle of the rear hinge 31 can be appropriately tilted during assembly so that it can pass smoothly through the assembly hole 51. After the rear hinge 31 is inserted into place, the anti-slip protrusion 311 will cross the edge of the assembly hole 51 and abut against the inner side of the temple 12. Then, the front hinge 21 and the rear hinge 31 are rotated and connected by a pin. At this time, the front hinge 21 also abuts against the inner side of the temple 12. At the same time, the pressure-bearing protrusion 312 fixedly provided on the inner side of the rear hinge 31 makes contact and fits with the closed curved surface 611 of the bent recessed section 61. By limiting the anti-slip protrusion 311 and the front hinge seat 21 on the inner side of the temple 12, and limiting the pressure-bearing protrusion 312 on the outer side of the temple 12, the temple 12 is stably fixed.
[0025] When the temple 12 or the spring 41 fails due to fatigue, weakens its elasticity, or breaks after long-term use, simply remove the pin, separate the front hinge 21 from the rear hinge 31, and the old temple 12 can be easily removed from the rear hinge 31. After replacing it with a new temple 12, the entire frame 11 and hinge assembly can be reassembled in the same manner. This eliminates the need to discard the entire frame 11 and hinge assembly, significantly reducing maintenance costs and material waste. Furthermore, since the spring 41 and temple 12 are integrally molded, replacing the temple 12 simultaneously replaces the spring 41, ensuring the restoration of elasticity. In summary, this embodiment achieves a detachable connection between the temple 12 and the hinge assembly while ensuring the stability of the temple 12 during unfolding and folding.
[0026] 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.
Claims
1. A novel eyeglass hinge structure, comprising a frame (11) and temples (12), wherein the frame (11) and temples (12) are rotatably connected by a hinge assembly; an integrally formed spring piece (41) extends from one end of the temple (12) near the frame (11); the hinge assembly comprises a front hinge seat (21) and a rear hinge seat (31), wherein the front hinge seat (21) and the rear hinge seat (31) are rotatably connected; and the frame (11) is connected to the front hinge seat (21). The temple (12) is connected to the rear hinge (31). The adjacent sidewalls of the front hinge (21) are respectively formed with a first abutment surface (211) and a second abutment surface (212). When the temple (12) is in a fully extended or fully folded state, the spring piece (41) relies on its own elasticity to adhere to the first abutment surface (211) or the second abutment surface (212), thereby ensuring the temple (12) remains stably in the corresponding position. Its characteristic is that: The temple (12) has an assembly hole (51) along its length. The rear hinge (31) is fixedly provided with an outwardly protruding anti-slip protrusion (311) at the end away from the front hinge (21). The rear hinge (31) not connected to the front hinge (21) can be inserted into the assembly hole (51) alone. After the rear hinge (31) is inserted into the assembly hole (51) alone, the anti-slip protrusion (311) can abut against the inside of the temple (12). The front hinge (21) connected to the rear hinge (31) can also abut against the inside of the temple (12), thereby limiting the inside of the temple (12). The temple (12) is provided with an integrally formed bent recess (61) at the position corresponding to the mounting hole (51). The bent recess (61) bends inward toward the temple (12). The space formed by the bent recess (61) constitutes a local enlarged diameter area of the mounting hole (51). The bent recess (61) has a closed curved surface (611). The rear hinge (31) limits the outer side of the temple (12) by contacting and fitting with the closed curved surface (611).
2. The novel eyeglass hinge structure according to claim 1, characterized in that: The rear hinge seat (31) is fixedly provided with a pressure-bearing boss (312) on the inner side, and the pressure-bearing boss (312) can contact and fit with the closed curved surface (611).
3. The novel eyeglass hinge structure according to claim 1, characterized in that: The end of the anti-detachment protrusion (311) has an arc-shaped first guide surface (3111).
4. The novel eyeglass hinge structure according to claim 1, characterized in that: The front hinge seat (21) has a hinge interface (71) inside, and the rear hinge seat (31) passes through the hinge interface (71) and is rotatably connected to the front hinge seat (21) by a pin.
5. The novel eyeglass hinge structure according to claim 1, characterized in that: The first contact surface (211) and the second contact surface (212) are connected by an arc-shaped second guide surface.
6. The novel eyeglass hinge structure according to claim 2, characterized in that: The forming area of the spring piece (41) on the temple (12) covers at least a continuous range extending from the end of the temple (12) near the end of the frame (11) to the end of the bent recess section (61) near the end of the frame (11).