Outwardly expanding elastic structure and eyeglasses frame thereof

Abstract

The application discloses an outward-expanding elastic structure applied to a spectacle frame, and the spectacle frame comprises a lens frame and a temple, and the outward-expanding elastic structure comprises: a first base connected to the lens frame; a second base connected to the temple; and a multi-rotating rod assembly rotatably connected to the first base and the second base through a plurality of connecting positions at both ends, and the second base is moved outward relative to the first base through the multi-rotating rod assembly. The application limits the inward and outward translation of the second base through the multi-rotating rod assembly, so that the temple can be translated in the inward and outward directions relative to the lens frame to adapt to users with different head circumferences, and since the temple does not have the axial rotating action, the wearing contact point does not produce deviation, and users with different head circumferences can all present the parallel temple effect when wearing, thereby ensuring the triangular force balance when wearing, so that the stable optimal wearing effect is obtained.

Description

Technical Field

[0001] This invention relates to the field of eyewear technology, and in particular to an outward-expanding elastic structure and its eyewear frame. Background Technology

[0002] Currently, both prescription glasses and sunglasses are generally secured to the face using nose pads in the center of the lens frame and temples on both sides. Because different people have different head circumferences and face shapes, the temples can easily become loose or pinch the head. Initially, this problem was solved by custom-made sizes, but the production capacity of handmade glasses was significantly limited. Later, as the industrialization of eyewear manufacturing accelerated, multi-size production methods were adopted. However, multi-size production methods led to a significant increase in the cost of production tools, and the uneven distribution of users' head circumferences and face shapes made inventory problems difficult to solve. Later, flexible hinges and flexible temples were designed to solve the problem of universal sizing.

[0003] Existing flexible hinges and flexible temples generally use spring boxes, spring plates, elastic rubber or other elastic materials to achieve different sizes of temples. However, almost all such designs on the market use a fixed point as the center to achieve the elastic force in the direction of rotation. During the elastic deformation, the wearing position will be offset. When adapting to users with different head circumferences, it cannot actually achieve the same wearing comfort. That is, the originally parallel temples will be stretched into a trapezoid, causing the wearing contact point to shift, thus causing discomfort when wearing. Summary of the Invention

[0004] The purpose of this invention is to provide an outward-expanding elastic structure and its eyeglass frame, which aims to solve the problem that when existing eyeglass frames elastically adapt to users with different head circumferences, the originally parallel temples are stretched into a trapezoidal shape, causing the wearing contact point to shift.

[0005] To solve the above-mentioned technical problems, the objective of this invention is achieved through the following technical solution: providing an outward-expanding elastic structure applied to an eyeglass frame, the eyeglass frame including a lens frame and temples, the outward-expanding elastic structure comprising:

[0006] The first base is connected to the lens frame;

[0007] The second base is connected to the temple;

[0008] The multi-rotor assembly has multiple connection points at both ends that are rotatably connected to the first base and the second base, and the second base is translated in the inward and outward directions relative to the first base through the multi-rotor assembly.

[0009] Furthermore, the second base is provided with a limiting piece extending to the outside of the first base.

[0010] Furthermore, the outward-expanding elastic structure also includes an elastic element disposed on the second base, abutting against the end of the multi-rotor assembly connected to the second base, and compressing the elastic element when the multi-rotor assembly rotates outward with the end connected to the first base as the rotation point.

[0011] Furthermore, the multi-rotor assembly includes two movable rotors, the two ends of which are respectively hinged to the first base and the second base, forming a parallelogram linkage structure.

[0012] Furthermore, the elastic element includes:

[0013] A compression spring is disposed within the second base;

[0014] A top plate is disposed at one end of the spring, and the end of the multi-rotor assembly is provided with a wheel-shaped protrusion that presses against the top plate.

[0015] Furthermore, the second base is provided with a spring groove for mounting the compression spring.

[0016] Furthermore, both movable rotating rods are rotatably connected to the first base and the second base via a set rotating shaft.

[0017] Furthermore, the first base is hinged to the lens frame and folds inward and rotates.

[0018] Furthermore, the second base is inserted into the temple of the mirror.

[0019] This invention also provides an eyeglass frame, wherein: it includes the outwardly expanding elastic structure as described above.

[0020] This invention provides an outward-expanding elastic structure for eyeglass frames, including lens frames and temples. The outward-expanding elastic structure includes: a first base connected to the lens frame; a second base connected to the temples; and a multi-rotor assembly, both ends of which are rotatably connected to the first and second bases via multiple connecting points. The second base is able to translate relative to the first base in an inward or outward direction via the multi-rotor assembly. This invention restricts the inward or outward translation of the second base via the multi-rotor assembly, allowing the temples to translate relative to the lens frame in an inward or outward direction to accommodate users with different head circumferences. Since there is no axial rotation of the temples, the wearing contact points do not shift, ensuring a parallel temple effect for users with different head widths, maintaining triangular force balance during wear, and thus achieving a stable and optimal wearing effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the unexpanded state of the outward-expanding elastic structure provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the expanded elastic structure in the expanded state provided in an embodiment of the present invention;

[0024] Figure 3 for Figure 1 A schematic diagram of the exploded structure;

[0025] Figure 4 for Figure 2 A schematic diagram of the exploded structure;

[0026] Figure 5 This is a schematic diagram of the structure of the second base provided in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the eyeglass frame in its non-expanded state according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the eyeglass frame in an expanded state according to an embodiment of the present invention.

[0029] Explanation of the markings in the image:

[0030] 1. First base;

[0031] 2. Second base; 21. Limiting piece; 22. Spring groove;

[0032] 3. Multi-rotor assembly; 31. Movable rotating rod; 311. Wheel-shaped protrusion; 33. Rotating shaft;

[0033] 4. Elastic element; 41. Compression spring; 42. Top plate;

[0034] 10. Lens frames;

[0035] 20. Temples. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0038] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0039] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0040] Combination Figure 1 and Figure 2 This invention provides an outwardly expanding elastic structure applied to an eyeglass frame, the eyeglass frame including a lens frame 10 (see reference). Figure 6 and Figure 7 ) and temples 20 (reference) Figure 6 and Figure 7 The outward-expanding elastic structure includes:

[0041] The first base 1 is connected to the lens frame 10;

[0042] The second base 2 is connected to the temple 20;

[0043] The multi-rotor assembly 3 is rotatably connected to the first base 1 and the second base 2 at both ends through multiple connection points, and the second base 2 is translated in the inward and outward directions relative to the first base 1 through the multi-rotor assembly 3.

[0044] In this embodiment, the outward-expanding elastic structure can be disposed inside the front section of the temple 20. Specifically, a mounting groove for mounting the outward-expanding elastic structure can be provided on the inner side of the front section of the temple 20. A mounting opening is provided in the mounting groove, and the second base 2 is inserted into the mounting opening so that the outward-expanding elastic structure is placed in the mounting groove. To improve installation stability, a protruding limiter can be provided at the insertion position of the second base 2, and a concave limiter that cooperates with the protruding limiter can be provided in the mounting opening. In addition, the first base 1 is hinged to the lens frame 10 and folded and rotated so that the temple 20 can be folded inward into the lens frame 10.

[0045] In the outward-expanding elastic structure of this embodiment, the first base 1 and the second base 2 are linked by a multi-rotor assembly 3. When both ends of the multi-rotor assembly 3 are rotatably connected to the first base 1 and the second base 2 through multiple connecting points, the second base 2 can only be translated inward or outward relative to the first base 1. This causes the temple 20 to be translated inward or outward relative to the lens frame 10, thus adapting to users with different head circumferences. Since the temple 20 does not have an axis rotation movement, the wearing contact point does not shift. Users with different head widths can all present a parallel temple effect when wearing the glasses, ensuring triangular force balance during wearing, thereby obtaining a stable and optimal wearing effect.

[0046] Furthermore, a limiting piece 21 extending to the outside of the first base 1 is provided on the second base 2, thereby restricting the second base 2 from translating inward relative to the first base 1, thus realizing the outward expansion adjustment structure in this solution. It should be understood that the limiting can also be achieved by the outer wall of the front section of the temple 20, which can also restrict the inward movement of the second base 2 relative to the first base 1.

[0047] In one embodiment, the multi-rotor assembly 3 may include multiple parallel movable rotors 31 of equal length; preferably, there are two movable rotors 31, with their ends hinged to the first base 1 and the second base 2 respectively, forming a parallelogram linkage structure. Based on this parallelogram linkage structure, the second base 2 can be translated outward relative to the first base 1, thereby achieving parallel outward expansion of the temple 20.

[0048] Specifically, two mounting holes are provided on both the first base 1 and the second base 2, and two connecting holes are provided at both ends of the two movable rotating rods 31. The two movable rotating rods 31 are installed by passing the rotating shaft 33 through the corresponding mounting holes and connecting holes. It should be understood that four mounting holes can also be provided on both the first base 1 and the second base 2, with the connecting holes of the movable rotating rods 31 placed between the corresponding two mounting holes for installation, so as to improve the stability of the installation.

[0049] like Figure 3 and Figure 4In one embodiment, the outward-expanding elastic structure further includes an elastic element 4, disposed on the second base 2, abutting against the end of the multi-rotor assembly 3 connected to the second base 2, and compressing the elastic element 4 when the multi-rotor assembly 3 rotates outward with the end connected to the first base 1 as the rotation point.

[0050] In this embodiment, when the multi-rotor assembly 3 rotates outward with the end connected to the first base 1 as the rotation point (that is, when the second base 2 moves outward to link the temple 20 to expand outward in parallel), the elastic element 4 is squeezed and generates a rebound force, so as to drive the multi-rotor assembly 3 to reset and link the temple 20 to reset when the user is not wearing it; that is, through the elastic action of the elastic element 4, stable wearing by users with different head circumferences is achieved.

[0051] Specifically, as shown in Figure 5, the elastic element 4 includes a compression spring 41 and a top plate 42. The second base 2 is provided with a spring groove 22 for mounting the compression spring 41. One end of the spring groove 22 protrudes from the spring groove 22 and is connected to the top plate 42; that is, by pressing against the top plate 42, the compression spring 41 can be compressed to generate elastic force.

[0052] Specifically, any movable rotating rod 31 in the multi-rotor assembly 3 is provided with a wheel-shaped protrusion 311 for pressing against the top plate 42. When the temple 20 is adjusted outward by the multi-rotor assembly 3, the wheel-shaped protrusion 311 on the movable rotating rod 31 presses against the top plate 42 during rotation to generate an elastic force for driving the multi-rotor assembly 3 to reset.

[0053] This invention also provides an eyeglass frame, wherein: it includes the outwardly expanding elastic structure as described above.

[0054] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An outwardly expanding elastic structure applied to an eyeglass frame, the eyeglass frame comprising a lens frame and temples, characterized in that, The outwardly expanding elastic structure includes: The first base is connected to the lens frame; The second base is connected to the temple, and the first base and the second base are provided with four mounting holes in pairs; The multi-rotor assembly has multiple connecting points at both ends that are rotatably connected to the first base and the second base. The second base is translated inward and outward relative to the first base through the multi-rotor assembly. The multi-rotor assembly includes two movable rotating rods. Each of the two movable rotating rods has a connecting hole at both ends. The connecting holes at both ends of the two movable rotating rods are placed between four corresponding mounting holes and installed through a rotating shaft to be hinged to the first base and the second base, forming a parallelogram linkage structure. The two movable rotating rods are arranged close to each other with a gap. The elastic element includes a compression spring and a top plate. The second base has a spring groove for mounting the compression spring. One end of the compression spring protrudes from the spring groove. The top plate is disposed at one end of the compression spring. One end of one of the two movable rotating rods has a wheel-shaped protrusion that abuts against the top plate. The top plate abuts against the wheel-shaped protrusion, and the compression spring is compressed when the multi-rotor assembly rotates outward with the end connected to the first base as the rotation point. When the movable rotating rod with the wheel-shaped protrusion rotates in the outward direction, the abutting surface of the wheel-shaped protrusion and the surface of the top plate facing the wheel-shaped protrusion are set at an acute angle; the abutting surface is the surface on which the wheel-shaped protrusion abuts against the top plate when the outward-expanding elastic structure is not subjected to external force.

2. The outwardly expanding elastic structure according to claim 1, characterized in that: The second base is provided with a limiting piece extending to the outside of the first base.

3. The outwardly expanding elastic structure according to claim 1, characterized in that: The first base is hinged to the lens frame and folds inward and rotates.

4. The outwardly expanding elastic structure according to claim 1, characterized in that: The second base is inserted into the temple of the mirror.

5. An eyeglass frame, characterized in that: Including the outwardly expanding elastic structure as described in any one of claims 1 to 4.

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