Easily removable, neck-hanging presbyopia glasses

Abstract

Easily detachable, neck-hanging presbyopia spectacles comprising a first frame (100), a second frame (200) and two legs (300) which are articulated to the first frame (100) or the second frame (200), characterized in that: the first frame (100) is provided at one end with an insertion section (110); that the second frame (200) is provided at one end with a connecting section (210), wherein the connecting section is provided with an insertion groove (211) for detachable connection with the insertion section (110); wherein the insertion section (110) is provided on any side with an elastic arm (111), wherein the elastic arm (111) is provided along an insertion direction, wherein a free end is provided with an outwardly directed positioning projection (112); wherein an inner wall of the insertion groove (211) is provided with a positioning hole (212), wherein, when the insertion section (110) is inserted into the release groove (211), the elastic arm (111) is deformed under pressure and reset to engage when the positioning projection (112) reaches the positioning hole (212); wherein by applying a separating force to the first frame (100) and / or the second frame (200) the elastic arm (111) is deformed, causing the positioning projection (112) to detach from the positioning hole (212).

Description

TECHNICAL AREA

[0001] The present utility model relates to the technical field of optical glasses, in particular easily removable presbyopia glasses that hang around the neck. STATE OF THE ART

[0002] Presbyopia glasses are glasses designed for people with presbyopia. Since presbyopia glasses cannot be worn continuously, they need to be put on and taken off alternately. To simplify putting them on and taking them off, some users hang their presbyopia glasses around their neck when not in use.

[0003] For example, Chinese patent CN203811914U discloses a pair of presbyopia glasses comprising a frame, a temple, and a lens. The frame is divided into a left and a right frame, which are connected by magnetic attraction. There is one temple, and this single temple is hinged at one end to the left frame and at the other end to the right frame. When the left and right frames are magnetically connected, they form a closed ring. In this state, the glasses do not fall to the ground during wear, even if they slip off the bridge of the nose, thus preventing the lens from breaking.

[0004] However, it is difficult to guarantee sufficient stability of the connection solely through magnetic coupling. Furthermore, misalignment is likely, which impairs usability. CONTENTS OF THE PRESENT USE SAMPLE

[0005] In order to remedy the deficiencies in the prior art, the purpose of the present utility model is to provide an easily removable, neck-hanging presbyopia spectacle.

[0006] To achieve the above purpose, the present utility model provides the following technical solution: A presbyopia spectacle that is easily removable and hangs around the neck, comprising a first frame, a second frame and two legs that are articulated to either the first or the second frame, wherein the first frame is provided with a plug-in section at one end; wherein the second frame is provided at one end with a connecting section, wherein the connecting section is provided with a slot for detachable connection with the insert section; wherein the insertion section is provided on any side with an elastic arm, wherein the elastic arm is provided along an insertion direction, wherein a free end is provided with an outwardly directed positioning projection; wherein an inner wall of the insertion groove is provided with a positioning hole accordingly, wherein, when the insertion section is inserted into the removal groove, the elastic arm is deformed under pressure and reset to engage when the positioning projection reaches the positioning hole; wherein by applying a separating force to the first frame and / or the second frame the elastic arm is deformed, causing the positioning projection to detach from the positioning hole.

[0007] A deflection hole is formed on the insertion section, wherein one end of the elastic arm is integrally connected to an inner wall of one side of the deflection hole, and wherein a main body section is suspended above the deflection hole.

[0008] An end surface of the connecting section forms a first mating surface, wherein the insertion section or the first frame is accordingly provided with a second mating surface, wherein, when the insertion section is fully fitted to the insertion groove, the first mating surface and the second mating surface are abutting each other.

[0009] A slanted guide surface or a rounded guide corner is provided at one edge of an opening in the insertion groove.

[0010] The positioning projection has a circular or elliptical cross-section; and / or the positioning projection is provided with the inclined guide surface on both a front and a back side in the insertion direction.

[0011] Both end sections of the legs are connected to each other via a connecting ligament, forming a closed ring.

[0012] The connecting strap is made of elastic material.

[0013] A sleeve hole is provided at one end of the connecting strap, with the end of one leg being inserted into the sleeve hole and forming an interference fit with the sleeve hole.

[0014] The present utility model offers the following advantages: No tools are required; the glasses can be disassembled and reassembled simply by inserting and removing parts, which significantly facilitates use for the elderly. The combination of the insertable structure and elastic snap closure provides multidimensional fixation and ensures a secure, non-removable connection. Its mechanical strength surpasses that of magnetic connection methods, resulting in a longer service life. BRIEF DESCRIPTION OF THE DRAWING Fig. Figure 1 is a schematic representation of the structure when assembling the frames of the present utility model. Fig. Figure 2 is a schematic representation of the structure when separating the frames of the present utility model. Fig. Figure 3 is a main view of the utility model (when separated). Fig. Figure 4 is a schematic representation of the structure of a first frame. Fig. Figure 5 is a schematic representation of the structure of the first frame in a different direction. Fig. Figure 6 is a schematic representation of the structure of a second frame. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of this utility model are clearly and completely described below in conjunction with the accompanying drawings. It is clear that the described embodiments represent only some of the embodiments of this utility model and not all of them. Based on the embodiments of this utility model, all other embodiments obtained through inventive step by a person skilled in the art are within the scope of protection of this utility model.

[0016] It should be noted that in embodiments of this utility model that include directional indications (e.g., top, bottom, left, right, front, back, etc.), these indications serve only to explain the relative positions, movements, etc., between the various components in a specific position. If the respective position is changed, the directional indication changes accordingly.

[0017] As in the Fig. 1 and Fig. As shown in Figure 3, the present utility model discloses a readily detachable, neck-hanging presbyopia spectacle, comprising a first frame 100, a second frame 200, and two legs 300 which are articulated to the first frame 100 or the second frame 200, wherein the first frame 100 and the second frame 200 together form a complete frame for receiving a spectacle lens, and simultaneously both end sections of the legs 300 are connected to each other via a connecting band 400, so that a closed ring is formed. The first frame 100 and the second frame 200 can be separated from each other (as shown in Figure 3). Fig. (2 shown) and can thus be hung around the neck with the connecting strap when not being worn. The connecting strap is also made of elastic material and in some other embodiments may take the form of braided rope, metal chain, etc.

[0018] As in Fig. As shown in Figure 3, 100 is at the left end of the first frame (as an example in the view of Fig. 3) A one-piece insertion section 110. An elastic arm 111 is attached to a side wall of the insertion section 110 by a continuous clearance hole 113 (as in Fig. (Figure 4) is formed. One end of the elastic arm 111 is connected to an inner wall of the bypass hole 113, with a main body section suspended. A free end of the elastic arm 111 is provided with an outwardly directed positioning projection 112. In this embodiment, the positioning projection 112 has a circular cross-section, and the edge at the front end of the insertion section 110 is chamfered and rounded, giving it the overall shape of a hemisphere on the elastic arm, which is slightly higher in one longitudinal direction to better define its boundaries.

[0019] As in Fig.As shown in Figure 6, the second frame 200 is provided at one end with a connecting section 210, the connecting section having an insertion groove 211 for detachable connection with the insertion section 210. The left end of the second frame 200 is similarly provided with a connecting section 210, and an insertion groove 211, corresponding to the shape of the insertion section 110, is formed within the connecting section 210. The edge of the opening of the insertion groove 211 is provided with an inclined guide surface 213. The inclined guide surface 213 is provided at the front end of the positioning hole 212 and facilitates the guidance of the deformation of the elastic arm. The inner wall of the insertion groove 211 is provided with a positioning hole 212, which corresponds to the position of the positioning projection 112.The end surface of the connecting section 210 forms a first mating surface 214, while the end section of the first frame 100 forms a second mating surface 114 which coincides with the first mating surface 214.

[0020] During use, the user aligns the insertion section 110 of the first frame 100 with the insertion groove 211 of the second frame 200 and carefully pushes it in. During insertion, the inclined guide surface 213 initially guides the insertion section 110 to the center. As the insertion deepens, the positioning projection 112 contacts the inner wall of the insertion groove 211 and presses the elastic arm 111 to create an elastic deformation in the deflection hole 113. When the insertion section 110 reaches a predetermined depth, i.e.,As the first mating surface 214 and the second mating surface 114 are about to align, the positioning projection 112 moves precisely to the positioning hole 212. The elastic arm 111 immediately retracts and presses the positioning projection 112 into the positioning hole 212. Simultaneously, the two mating surfaces press tightly against each other, accompanied at this point by a distinct "click," indicating that the assembly is correctly seated. At this point, the first frame 100 and the second frame 200 are firmly connected.

[0021] During disassembly, the user only needs to hold the first frame 100 and the second frame 200 by hand and apply an opposing pulling force.

[0022] The force causes the elastic arm 111 to deform again, and the positioning projection 112 slides out of the positioning hole 212, so that the two parts can be easily separated.

[0023] The support is based on the insertion section and the connecting section, while the positioning is based on the interaction of the positioning projection on the elastic arm and the positioning hole, making it more reliable and preventing the material from deforming over a long period of time.

[0024] The ends of the two legs 300 are connected by a connecting band 400 made of elastic silicone. The connecting band 400 has a sleeve hole at each end, and one end of the leg 300 is inserted into the sleeve hole for attachment by means of an interference fit. When the glasses are removed, the first frame (with one leg) and the second frame (with the other leg) remain connected by the elastic connecting band 400, forming a ring. When not being worn, they can be hung directly around the neck. To prevent them from being easily lost, the insertion section and the connecting section can also be used to secure the two when hung around the neck.

[0025] Disassembly is simple and the connection reliable. The separating force can be applied to the connection between the two parts with one hand, making operation more convenient and faster, and better suited to the usage habits of elderly people.

[0026] The exemplary embodiments are not intended to limit the present utility model, and all modifications made within the spirit of the present utility model are included in the scope of protection of the present utility model. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 203811914U

[0003]

Claims

[1] Easily detachable presbyopia spectacles hanging around the neck, comprising a first frame (100), a second frame (200) and two legs (300) articulated to the first frame (100) or the second frame (200), characterized by , that: the first frame (100) is provided at one end with an insertion section (110); that the second frame (200) is provided at one end with a connecting section (210), wherein the connecting section is provided with an insertion groove (211) for detachable connection with the insertion section (110); wherein the insertion section (110) is provided on any side with an elastic arm (111), wherein the elastic arm (111) is provided along an insertion direction, wherein a free end is provided with an outwardly directed positioning projection (112); wherein an inner wall of the insertion groove (211) is provided with a positioning hole (212), wherein, when the insertion section (110) is inserted into the release groove (211), the elastic arm (111) is deformed under pressure and reset to engage when the positioning projection (112) reaches the positioning hole (212); wherein by applying a separating force to the first frame (100) and / or the second frame (200) the elastic arm (111) is deformed, causing the positioning projection (112) to detach from the positioning hole (212). [2] Easily removable presbyopia glasses that hang around the neck according to claim 1, characterized by , that a deflection hole (113) is formed on the insertion section (110), wherein an end of the elastic arm (111) is integrally connected to an inner wall of one side of the deflection hole (113), wherein a main body section is suspended above the deflection hole (113). [3] Easily removable presbyopia glasses that hang around the neck according to claim 1, characterized by , that an end surface of the connecting section (210) forms a first mating surface (214), wherein the insertion section (110) or the first frame (100) is accordingly provided with a second mating surface (114), wherein, when the insertion section (110) is fully fitted to the insertion groove (211), the first mating surface (214) and the second mating surface (114) are in contact with each other. [4] Easily removable presbyopia glasses that hang around the neck according to claim 1, characterized by , that an inclined guide surface or a rounded guide corner is provided at an edge of an opening of the insertion groove (211). [5] Easily removable presbyopia glasses that hang around the neck according to claim 1, characterized by, that the positioning projection (112) has a circular or elliptical cross-section; and / or that the positioning projection (112) is provided with the inclined guide surface on both a front and a back side in the insertion direction. [6] Easily removable presbyopia glasses that hang around the neck according to claim 1, characterized by , that both end sections of the legs (300) are connected to each other via a connecting band (400), so that a closed ring is formed. [7] Easily removable presbyopia glasses hanging around the neck according to claim 6, characterized by , that the connecting band (400) is made of elastic material. [8] Easily removable presbyopia glasses that hang around the neck according to claim 6, characterized by, that a sleeve hole is provided at one end of the connecting band (400), wherein the end of a leg (300) is inserted into the sleeve hole and forms an interference fit with the sleeve hole.

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