A LINKAGE STRUCTURE OF EYEGLASSES

FRAME

FIELD OF THE INVENTION The present invention relates generally to a linkage structure, and more particularly to an innovative one involving the temples and lens of the eyeglasses.

BACKGROUND OF THE INVENTION People wear various eyeglasses due to various reasons, such as short-sighted or far-sighted eyeglasses for reading or viewing, sunglasses for sheltering the eyes from the bright sunlight, or pursuing a different decorative effect. In these eyeglasses, the commonly used linkage structure for temples and lens of eyeglasses is a screwed linkage structure, namely, a thread hole is separately welded onto the temples and lens, and a bolt is used as a hinged axle to link the temples and lens.

However, when users wear or take off the eyeglasses, the temples of eyeglasses are opened and closed, and the bolt in a hinging state is likely disengaged from the thread hole; meanwhile, different materials cannot be welded together through existing welding technology, this is why the temples and lens of eyeglasses are generally linked by a bolt.

Moreover, the linkage process is complicated but inefficient, and auxiliary tools are required.

Thus, to overcome the aforementioned problems of the prior art, it would be an advancement if the art to provide an improved structure that can significantly

improve the efficacy.

Therefore, the inventor has provided the present invention of practicability after deliberate design and evaluation based on years of experience in the production, development and design of related products.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a linkage structure for the eyeglasses frame, which adopts a locking mechanism to link any two intended components on the eyeglasses frame, such as temples and lens, or lens and lens, with its aim of facilitating the assembly and reducing the loosening of spare parts.

The technical scheme of the present invention is as follows:

A linkage structure for eyeglasses frame, wherein said eyeglasses frame comprises temples and two lenses; a pivot is arranged between two components of the eyeglasses frame to be linked; and a pivot sleeve made of plastics is also mounted for mating with the pivot; a groove is arranged on the pivot sleeve along the periphery of the pivot for mating with a resilient clip; the resilient clip and pivot are separately arranged on two components to be linked.

These two components to be linked refer to the temples and lens on the linkage structure, a lug structure is arranged on the lens, and a pivot arranged on the lug structure; the resilient clip is arranged at the connection end of the temples.

Said linkage structure, wherein a notch is arranged on the pivot sleeve for limiting the rotating angle of the pivot. Said linkage structure, wherein the pivot sleeve is arranged as two semi-bodies, each with a pivot hole for adapting axially the pivot of the lug

structure.

Said linkage structure, wherein the pivot sleeve is prefabricated, and a pivot hole penetrating the pivot sleeve is placed; the pivot of the lug structure is provided with an assembly hole, as well as a pivot pin for penetrating the pivot hole and assembly hole.

Said linkage structure, wherein the resilient clip at end of the temples is an opening portion.

Said linkage structure, wherein at least a redundant opening portion is arranged at the edge of said opening. Said linkage structure, wherein the resilient clip at end of the temples is a notched portion.

Said linkage structure, wherein the notch is provided with a metal sheet and a protruded snapping portion; and a snapping groove is arranged correspondingly on the pivot sleeve for mating with the protruded snapping portion.

Said linkage structure, wherein a hooking portion deflecting inwards is arranged at the opening of the notch; and a snapper is arranged corresponding to the pivot sleeve.

Said linkage structure, wherein two components to be linked refer to two lenses.

The present invention provides a linkage structure for a eyeglasses frame, which limits the pivot into the pivot sleeve through a resilient clip, and then links any two components of the eyeglasses frame for convenient and robust assembly.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of lens of first preferred embodiment of the present invention.

FIG. 2 is a lateral view of eyeglasses of first preferred embodiment of the present invention. FIG. 3 is an exploded structural view of first preferred embodiment of the present invention.

FIGS. 4a and 4b are two lateral views of temples' linkage structure of first preferred embodiment of the present invention.

FIG. 5 is a lateral view of second preferred embodiment of the present invention.

FIG. 6 is an exploded structural view of second preferred embodiment of the present invention.

FIGS. 7a and 7b are two lateral views of temples' linkage structure of second preferred embodiment of the present invention. FIG. 8 is a lateral view of third preferred embodiment of the present invention;

FIG. 9 is an exploded structural view of third preferred embodiment of the present invention.

FIGS. 10a and 10b are two lateral views of temples' linkage structure of third preferred embodiment of the present invention.

FIG. 11 is a lateral view of fourth preferred embodiment of the present invention.

FIG. 12 is an exploded structural view of fourth preferred embodiment of the present invention. FIGS. 13a and 13b are two lateral views of temples' linkage structure of fourth preferred embodiment of the present invention.

FIG. 14 is an exploded structural view of fifth preferred embodiment of the present invention.

FIGS. 15a and 15b are two lateral views of temples' linkage structure of fifth preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The preferred embodiments of the present invention are described in detail below:

FIGS. 2, 5, 8 and 11 depict the schematic view of four preferred embodiments of the linkage structure of eyeglasses frame, wherein the temples' linkage structure is mainly used for linking the lens 110 and temples

120; referring to FIG. 1, two lenses 110 are generally provided, and a lug structure 111 is arranged at both ends of the lens 110; one end of the lug structure 111 is fixed onto the lens 110, and the other end linked to the temples 120, forming a pivot for opening or closing the temples.

The linkage structure of the present invention is also used for linking two lenses. In such case, the linkage structure is arranged at the nose stand between two lenses for realizing a smaller folding volume.

In the first preferred embodiment of the present invention, the lug structure 111 is provided with a pivot 112. Referring to FIGS. 3, 4a and 4b, the pivot 112 and lug structure 111 can be welded together, or prefabricated; a pivot sleeve

130 made of plastics is also arranged, a pivot hole 131 is internally provided to mate with the pivot 112 on the lug structure, and a notched portion 132 is laterally placed for limiting the rotating angle of the pivot 112; referring to FIG. 4b, the rotating angle is a tolerable angle for opening or closing the temples; referring to FIG. 4b, a groove 133 is arranged on the pivot sleeve 130 along the

periphery of the pivot for mating with the resilient clip 121 at end of the temples 120;

In the first preferred embodiment, the pivot sleeve 130 is arranged as two semi-bodies 134 and 135; referring to FIG. 3, every semi-body is provided with a pivot hole 131 for adapting axially the pivot 112 of the lug structure. Firstly, two semi-bodies 134 and 135 are assembled towards the pivot 112, then the resilient clip 121 is adapted onto the groove 133, thus preventing the slippage of pivot sleeve 130.

In the first preferred embodiment, the resilient clip 121 presents resiliency since a notch 122 is placed on the end of the temples 120; the notch 122 can be easily arranged into the expanded periphery 123.

Thus, the delicate non-screwed structure of the present invention ensures that the entire linkage structure may not slip off during the assembly process.

In the second preferred embodiment of the present invention, referring to FIGS. 5, 6, 7a and 7b, the resilient clip 121 of the temples 120 has the same structure as that in the first preferred embodiment, but the pivot sleeve 130 is prefabricated and a pivot hole 131 is arranged on the pivot sleeve 130. So, the pivot 112 of the lug structure must employ a separation structure, namely, an assembly hole 113 is arranged on the lug structure, and a pivot pin 114 is also arranged independently for penetrating the pivot hole 131 of the pivot sleeve and assembly hole 113 on the lug structure in sequence.

The assembly structure of temples in the second preferred embodiment differs from that in the first preferred embodiment. Firstly, the assembly hole

113 of the lug structure is inserted into the pivot sleeve 130, and the assembly hole 113 is aligned with the pivot hole 131 of the pivot sleeve, then the pivot pin

114 is penetrated into the assembly hole 113 and pivot hole 131 , as shown in

FIG. 7a. Next, the resilient clip 121 of temples is adapted with the groove 133 on the pivot sleeve, thus preventing the slippage of pivot pin 114, moreover, the resilient clip 121 enables convenient and easy assembly.

In the third preferred embodiment of the present invention, referring to FIGS. 8, 9, 10a and 10b, the difference with the second preferred embodiment is that, the resilient clip 121 at end of the temples 120 is provided with an opening that has a narrow periphery 123 similar to a metal wire structure. The opening can be arranged as an oval or round hole. To increase the resiliency of the temples, at least a redundant opening portion 124 is arranged at the edge of said opening, as shown in FIG. 9. This makes it easier for the resilient clip 121 to mate flexibly with the pivot sleeve 130.

The assembly process of the third preferred embodiment is: insert firstly the assembly hole 113 of the lug structure into the pivot sleeve 130, keep it consistent with the pivot hole 131 , then penetrate the pivot pin 114 into the pivot hole 131 and assembly hole 113, and assemble the resilient clip 121 into the groove 133 from one side of the pivot sleeve 130. This can prevent the slippage of pivot pin 114 since the groove 133 is properly arranged within the axial plane of the pivot 112.

Referring to FIGS. 11 , 12, 13a and 13b, the difference of the fourth preferred embodiment with the third one is that, the pivot sleeve 130 is arranged at two semi-bodies; and the difference of the fourth preferred embodiment with the first one is that, the resilient clip at end of the temples has a different structure.

The assembly process of the fourth preferred embodiment is: buckle axially two semi-bodies 134 and 135 of the pivot sleeve 130 from the pivot 112, then buckle the resilient clip 121 at end of temples laterally into the groove 133 of the

pivot sleeve. Since two redundant opening portions 124 are arranged laterally on the opening, this ensures the resilient clip 121 can be conveniently buckled into the groove 133 without any slippage. Meanwhile, the resilient clip 121 makes two semi-bodies buckled together with the pivot 112, forming a linkage structure for opening or closing the temples.

Referring to FIG. 14-a schematic view of fifth preferred embodiment of the present invention, the pivot assembly hole 113 is arranged at end of the lug structure 111 of the lens 110, as shown in FIGS. 15a and 15b, and a pivot sleeve 130 with a pivot hole 131 is also arranged. Firstly, the end of lug structure 111 is inserted into the pivot sleeve, and align the assembly hole 113 and pivot hole 131 on a coaxial line, then penetrate the pivot pin 114 through the assembly hole 113 and pivot hole 131 ; next, the resilient clip 121 at end of temples 120 is buckled onto the pivot sleeve 130. The resilient clip 121 is arranged as a notched portion that's properly adapted into the groove 133 of the pivot sleeve 130; the groove 133 is provided internally with a pivot hole 131. So, the resilient clip 121 of the temples can be assembled onto the pivot sleeve 130, thus preventing the slippage of the pivot pin 114.

In the fifth preferred embodiment of the present invention, the resilient clip 121 is arranged as a notched portion, at front end of which a hooking portion 126 deflecting inwards is arranged; and a snapper 136 is arranged corresponding to the groove 133 of the pivot sleeve 130. So, the resilient clip 121 and pivot sleeve 130 are adapted more closely and tightly without loosening or slippage.

Furthermore, in the fifth preferred embodiment of the present invention, a metal sheet 140 is arranged within the curved opening corresponding to the resilient clip 121 , and can be preprocessed into the temples 120, while a

protruded snapping portion 147 is centrally arranged in the notched portion of the resilient clip 121 ; meanwhile, a snapping groove 137 for mating with the protruded snapping portion 147 is arranged correspondingly on the groove 133 of the pivot sleeve 130. In such a way, when the temples of the present invention are assembled onto the lug structure, the protruded snapping portion 147 is mated with the snapping groove 137, ensuring the temples are fixed in the plane of pivot for realizing a more stable and secure structure.

The linkage structure of the present invention can also be used between two lenses of the eyeglasses frame in order to reduce the entire space of the eyeglasses when folded and put away; even more, the linkage structure can be used for linking any other two components since it can ensure the secure linkage and convenient assembly/disassembly.

By adopting buckling and snapping structures, the linkage structure of the eyeglasses frame simplifies the assembly process, and prevents slippage of the components during wearing process. Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.