Eyeglass wire

Abstract

The utility model discloses a kind of glasses leg silk, including the connecting portion and leg silk rod of being fixed on spectacle frame, connecting portion is integrally formed with elasticity, including upper horizontal section, from the upper horizontal section one end downward extension and outward bending form arc bending section, the inner ring surface of arc bending section forms arc bending area, the shaft nail piece is arranged in arc bending area, arc bending groove is equipped along the outer surface of arc bending section, the end of leg silk rod is provided with integrally formed torsion portion with elasticity, the torsion portion includes first arc ring, reverse second arc ring connected in turn, the first arc ring is inserted in arc bending groove, and is buckled on shaft nail piece and rotates cooperation, the second arc ring is connected with leg silk rod, when leg silk rod is open state, the outer surface of the first end of the second arc ring and the outer surface of arc bending section tail end are in abutment, and its tail end is outwardly extended and forms expansion zone. The utility model significantly improves the outspread adaptability of glasses leg silk, structural stability, assembly convenience and service life.

Description

Technical Field

[0001] This utility model relates to the field of eyeglass accessories technology, and more specifically, it relates to eyeglass temple threads. Background Technology

[0002] In existing eyeglass structures, the opening width between the two temples (also called "temples" or "temple threads") is primarily determined by the hinge connection between the frame's posts and the temples. Traditional temple threads are typically made of metal or plastic sheeting and connected to the frame via screw hinges. Their opening angle is limited by the mechanical strength of the hinge and the geometric dimensions of the frame. When a user has a wide head or requires a larger temple spacing, the following methods are often the only options: 1. Increase the overall width of the frame. While this indirectly increases the temple spacing, it can lead to a mismatch between the optical center of the lens and the pupillary distance, creating a prismatic effect that affects visual comfort and results in a bulky appearance; 2. Use temple thread materials with better elasticity and add "elastic hinges" or "U-shaped springs" to the temple threads. These additional components are complex in structure, have many parts, require cumbersome assembly, are costly, and are prone to problems such as loose screws and spring fatigue after long-term use; 3. Increase the temple spacing by adjusting the tightness of the hinges with screws. However, this method requires specialized tools, making it inaccessible to ordinary users. Furthermore, repeated adjustments can lead to thread wear and reduced reliability. Additionally, existing technologies suffer from the drawback of the temples easily breaking under stress when they extend outwards.

[0003] Therefore, the industry urgently needs a simple, stable, and durable temple extension design that allows for an increased distance between the temples, in order to simultaneously meet the comfort needs of users with wide heads, simplify the production and assembly process, and reduce subsequent maintenance costs. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a temple wire with a stable and durable outward expansion structure that can meet different wearing needs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a temple wire for eyeglasses, comprising a connecting part fixed to the frame and a temple wire rod. The connecting part is elastic and integrally formed, including an upper horizontal section. An arc section extends downward from one end of the upper horizontal section and bends outward to form an arc section. An arc section is formed on the inner ring surface of the arc section. A shaft pin is inserted into the arc section. An arc groove is provided along the outer surface of the arc section. The end of the temple wire rod is provided with an elastic and integrally formed torsion part. The torsion part includes a first arc-shaped ring and a second arc-shaped ring connected in sequence. The first arc-shaped ring is inserted into the arc groove and is engaged with the shaft pin for rotational cooperation. The second arc-shaped ring is connected to the temple wire rod. When the temple wire rod is in the open state, the outer surface of the first end of the second arc-shaped ring abuts against the outer surface of the tail end of the arc section, and its tail end extends outward to form an expansion area.

[0006] The present invention is further configured such that: the shaft pin includes a pin seat and a pin head, the pin seat and the pin head are fixed by a threaded engagement, wherein the end of the pin seat and the end of the pin head both abut against the opening of the curved area.

[0007] The present invention is further configured such that: both the nail seat and the nail head are provided with gaskets, and the gaskets are respectively located on the upper end face and the lower end face of the first arc-shaped ring.

[0008] The present invention is further configured such that the connecting part, the lead screw, and the torsion part are all made of elastic metal material.

[0009] By adopting the above technical solutions, a simple and aesthetically pleasing structure is achieved, featuring a fully elastic, one-piece metal molding process: the connecting parts, torsion parts, and temple screws are all made of highly elastic metal materials, eliminating the rigid stress concentration points of traditional screw hinges. The double-arc ring design of the torsion part disperses stress through reverse bending, ensuring that the deformation during expansion is evenly distributed in the torsion part, avoiding the risk of localized breakage in traditional single-hinge structures. The built-in expansion structure, through the placement of the off-center arc ring in the torsion part and the reverse second arc ring, enhances the adaptability of the temples for expansion. Simultaneously, without affecting the frame size, it expands the distance between the two temples, improving fit and comfort, and meeting different wearing needs, thus broadening its practicality. Attached Figure Description

[0010] Figure 1 This is an exploded view of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of a partial structure of this utility model;

[0012] Figure 3 This utility model is in its current state. Figure 1 ;

[0013] Figure 4 This utility model is in its current state. Figure 2 ;

[0014] Figure 5 This is a partial sectional view of the present invention.

[0015] 1. Connecting part; 10. Upper horizontal section; 11. Arc-bend section; 12. Arc-bend area; 13. Arc-bend groove; 2. Lead screw; 21. Torsion part; 22. First arc-shaped ring; 23. Second arc-shaped ring; 3. Shaft pin; 30. Pin seat; 31. Pin head; 32. Washer. Detailed Implementation

[0016] Reference Figures 1 to 5 The embodiments of this utility model will be further described below.

[0017] A type of eyeglass temple wire includes a connecting part 1 fixed to the frame and a temple wire rod 2. The connecting part 1 is elastic and integrally formed, including an upper horizontal section 10. An arc-shaped section 11 extends downward from one end of the upper horizontal section 10 and bends outward. An arc-shaped area 12 is formed on the inner ring surface of the arc-shaped section 11. A shaft pin 3 is inserted into the arc-shaped area 12. An arc-shaped groove 13 is provided along the outer surface of the arc-shaped section 11. The end of the temple wire rod 2 is provided with an elastic and integrally formed torsion part 21. The torsion part 21 includes a first arc-shaped ring 22 and a second arc-shaped ring 23 connected in sequence. The first arc-shaped ring 22 is inserted into the arc-shaped groove 13 and is engaged with the shaft pin 3 for rotational cooperation. The second arc-shaped ring 23 is connected to the temple wire rod 2. When the temple wire rod 2 is in the open state, the outer surface of the first end of the second arc-shaped ring 23 abuts against the outer surface of the tail end of the arc-shaped section 11, and its tail end extends outward to form an expansion area. The shaft pin 3 includes a pin seat 30 and a pin head 31, which are fixed together by a threaded connection. The ends of both the pin seat 30 and the pin head 31 abut against the opening of the curved area 12. Washers 32 are threaded onto both the pin seat 30 and the pin head 31, located on the upper and lower ends of the first arc-shaped ring 22, respectively. The connecting part 1, the lead screw 2, and the torsion part 21 are all made of elastic metal material.

[0018] Working principle: When the temple is opened or folded, the first arc-shaped ring 22 on the torsion part 21 rotates around the shaft pin 3. When the temple is in the most open state, the outer surface of the first end of the second arc-shaped ring 23 abuts against the outer surface of the tail end of the curved section 11, which restricts the excessive movement of the temple. At the same time, the expansion area formed expands the wearing space without changing the size of the frame, thus improving the wearing comfort.

[0019] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A type of eyeglass temple bolt, characterized in that: The device includes a connecting part fixed to the frame and a foot screw. The connecting part is elastic and integrally formed, including an upper horizontal section. An arc section extends downward from one end of the upper horizontal section and bends outward to form an arc section. An arc section is formed on the inner ring surface of the arc section. A shaft pin is inserted into the arc section. An arc groove is provided along the outer surface of the arc section. The end of the foot screw is provided with an elastic and integrally formed torsion part. The torsion part includes a first arc ring and a second arc ring connected in sequence. The first arc ring is inserted into the arc groove and is engaged with the shaft pin for rotational cooperation. The second arc ring is connected to the foot screw. When the foot screw is in the open state, the outer surface of the first end of the second arc ring abuts against the outer surface of the tail end of the arc section, and its tail end extends outward to form an expansion area.

2. The eyeglass temple bolt according to claim 1, characterized in that: The shaft pin includes a pin seat and a pin head, which are fixed together by a threaded connection. The ends of the pin seat and the pin head both abut against the opening of the curved area.

3. The eyeglass temple bolt according to claim 2, characterized in that: Both the nail seat and the nail head are fitted with washers, which are located on the upper and lower ends of the first arc-shaped ring, respectively.

4. The eyeglass temple bolt according to claim 1, characterized in that: The connecting part, lead screw, and torsion part are all made of elastic metal material.

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