JP3009237U - Spiral joint structure for eyeglass frames - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] In the joint structure that connects the temples of the eyeglass frame in a foldable manner, without using conventional hinges,
Provide a crane joint structure that is easy to manufacture and assemble and that prevents the rattling of the vine. [Structure] A rail 5 having a bearing hole 6 at the center is formed by a pipe piece on an endpiece fixed to a front frame, and an opening 7 penetrating the bearing hole 6 is provided on a side surface of the bearing 5, and one of the ends of the temple is provided. Has an arm having a shaft at its tip, and the shaft is fitted into the bearing hole 6 through the opening 7, and the spring force of both arms acts on the upper and lower surfaces of the opening 7 to prevent the rattling of the vine.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a joint structure for stably connecting a crane without using a hinge that has been used conventionally.

[0002]

[Prior art]

 The vines of spectacle frames are generally connected via hinges and can be folded. The hinge is made by connecting both hinges so that they can be bent about an axis. One of the hinges is fixed to the armature brazed to the front frame, and the other is fixed to the crane. In the case of a resin frame, one of the above-mentioned butterfly pieces is embedded in the front frame, and the other butterfly piece is screwed to the crane.

By the way, when the vines are connected via the hinges, the number of foldings of the vines is unlimited, and therefore the sliding surface of the hinges wears and rattles. As a result, the vines also play likewise, and the worn glasses may become misaligned or even fall off the face. In order to avoid such wear of the hinge, people who wear glasses sometimes prevent the rattling by tightening the screw that is the shaft of the hinge. On the other hand, in the case of a crane connecting structure using a hinge, the work of assembling the crane is troublesome.

[0004] Each hinge piece of the hinge is brazed to the armor and the temple, and in that state, the both hinge pieces are combined and the shaft screw is inserted and screwed together. Poor performance, and each butterfly piece must be brazed properly to the armor and vine. The positioning work of the butterfly piece is very troublesome, and if the brazing position is misaligned, the crane cannot be correctly connected and cannot be folded properly. Further, the joint structure using the hinge has a large hinge attachment portion, which often impairs the design of the eyeglass frame.

[0005]

[Problems to be solved by the present invention]

 As described above, the conventional joint structure of the eyeglass frame has the above problems. The problems to be solved by the present invention are these problems, and provide a crane joint structure that is easy to assemble and that can maintain a stable folding operation without rattling.

[0006]

[Means for Solving the Problems]

 The vine joint structure of the present invention is a structure in which the vine is foldably connected to the armature fixed to the front frame side, and a conventional hinge is not used. Therefore, the structure is such that a bearing is formed at the tip of the endpiece, and a shaft formed at the temple end is fitted into this bearing. The bearing has a bearing hole at the center, and an opening communicating with the bearing hole is formed on the side surface.

The shaft provided on one of the temples is formed at the end of two arms branched in the middle, and is fitted into the bearing hole. The two arms are branched vertically, and when they are fitted in the bearing holes, they are spring-deformed and approach each other. Therefore, in a state where the arms are fitted and connected to the bearing holes, the restoring force of the spring-deformed arm acts on the bearings, and the vine is stable without rattling. Here, the form of the bearing is not limited, and it may be configured by a small pipe piece or may be configured by bending and deforming a wire rod. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0008]

【Example】

 1 (a) to 1 (c) are specific examples of eyeglass frames adopting the temple joint structure of the present invention. The left and right rims 1 and 1 are connected by a connecting member 2, and the outer rims 3 and 3 are brazed. And the crane 4 is connected to the armor 3 so that it can be folded. Although such a basic structure is common to all eyeglass frames, the present invention is characterized by the connecting structure between the armor 3 and the temple 4. Therefore, the frame itself is not limited in any way, and may be a half rim in which the lower half of the rim is a water thread, or even the glasses that do not use the rim can adopt the joint structure. .

FIG. 2 shows a specific example of the bearing 5 provided at the tip of the endpiece. As shown in the figure, the bearing 5 has a small pipe shape, and a bearing hole 6 is formed at the center. The side surface has an opening 7, and the shape of the opening 7 is such that the upper and lower surfaces thereof are inclined surfaces 8 and 8, and when the shaft 10 shown in FIG. 3 is fitted into the bearing hole 6, it depends on the folding angle of the temple 4. It has a function to adjust the spring force.

The crane 4 has two arms 9 and 9, and the tips of the arms are bent to form shafts 10 and 10. That is, the upper arm 9 extends the shaft 10 upward, and the lower arm 9 projects the shaft 10 downward. Moreover, the arms 9 and 9 are spaced apart from each other, and the upper and lower shafts 10 and 10 are largely separated from each other. By the way, these shafts 10 and 10 are fitted into the bearing holes 6 and 6, but in this case, both arms 9 and 9 are fitted close to each other.

FIG. 4 shows a case in which the shafts 10 and 10 are fitted into the bearing 5 and the crane 4 is connected. Since both arms 9 of the temple 4 approach each other and are attached to the bearing 5, a restoring force (spring force) P of the spring is generated and acts on the inclined surfaces 8 of the opening. As a result, the arms 9 and 9 and the vine 4 become stable, but at the same time, the spring force P acts in the direction of folding the vine. That is, since the arms 9 and 9 contact portions move along the inclined surfaces 8 and 8 to expand outward and stabilize, the force is generated in the folding direction of the crane 4.

This means that when the spectacles are worn, if the vines 4 are opened, the folds 4 are brought into close contact with the skin by the force in the folding direction generated by the action of the spring force P, thus stabilizing the spectacles. That is, it functions as a conventional spring hinge. Of course, unless the upper and lower surfaces of the opening 7 are inclined, the spring force P does not cause the temple 4 to move in the folding direction. The present invention also includes this case.

FIG. 5 shows another embodiment of the present invention. Of course, the basic form is the same as that of the above-mentioned embodiment, bearings 12, 12 are formed on the end side, and shafts 10, 10 provided on the temple side are connected to the bearings 12, 12. However, in the case of this embodiment, as shown in FIG. 6, the end piece 11 is formed by bending a wire, and the wire is bent to form a ring, and the ring is used as the bearings 12, 12.

Although the figure shows the joint structure schematically for the sake of clarity, the shaft 10 is actually fitted in the bearing hole so that the tool 4 does not rattle. Further, a stopper 13 is formed on the end piece 11, and when the temple 4 is opened, the stopper 13 is brought into contact with the stopper 13 to regulate the opening degree. As described above, the crane joint structure of the present invention does not use a hinge as in the prior art, but is provided with a bearing on the endpiece, and the shaft formed in the temple is fitted and connected to the bearing. The following effects can be obtained.

[0015]

[Effect of device]

 Since the hinged joint structure of the present invention does not use a hinge, the problems that occur when a hinged joint is used can be solved. That is, when the shafts of both arms formed at the temple ends are fitted into the bearing holes, the spring force acts and there is no rattling, and a stable folding operation can always be realized. And it's easy to make. On the other hand, if the bearing is made of pipe pieces and the upper and lower surfaces of the side openings are inclined, the spring force of the arm acts in the direction of folding the vine, and when wearing glasses, the vine is brought into close contact with the skin. , Can function as a spring hinge.

[Brief description of drawings]

FIG. 1 is a specific example of an eyeglass frame adopting the temple joint structure of the present invention.

FIG. 2 is a specific example showing a bearing having a joint structure.

FIG. 3 is a specific example showing a shaft of a joint structure.

FIG. 4 shows a case where a shaft is connected to a bearing.

FIG. 5 is another specific example of an eyeglass frame adopting the temple joint structure of the present invention.

FIG. 6 is a schematic view of a temple joint portion.

[Explanation of symbols]

 1 rim 2 connecting member 3 laying 4 vine 5 bearing 6 bearing hole 7 opening 8 inclined surface 9 arm 10 axis 11 armoring 12 bearing 13 stopper

Claims (3)

[Scope of utility model registration request] 1. In a temple joint structure in which a temple is foldably connected to an armature provided in a front frame, a bearing having a bearing hole at a center is formed by a pipe piece in the armature, and a bearing hole is formed on a side surface of the bearing. Has an opening penetrating through and has an arm having a shaft at its tip at one of the temple ends, and the shaft is fitted into the bearing hole through the opening, and the spring force of both arms acts on the upper and lower surfaces of the opening. The temple joint structure of eyeglass frames. 2. In a temple joint structure in which a crane is foldably connected to a trolley provided on a front frame, a bearing having a bearing hole at a center is formed by a pipe piece on the royloy, and a bearing hole is formed on a side surface of the bearing. The upper and lower surfaces of the opening are inclined surfaces, one arm end has an arm with a shaft formed at the tip, and the shaft is fitted into the bearing hole through the opening, A temple joint structure for eyeglass frames, characterized in that a spring force acts on the vertically inclined surfaces of the opening. 3. In a temple joint structure in which a temple is foldably connected to an armor provided on a front frame, the armature is formed by bending a wire rod, and has an upper and lower ring-shaped bearings and a space between both bearings. Provide a stopper,
A temple joint of a spectacle frame, characterized in that an arm having a shaft at its tip is formed at one of the ends of the temple, the shaft is fitted into a bearing hole of the bearing, and spring forces of both arms act on the bearing. Construction.