JP3089560U - Glasses frame crane joint structure - Google Patents

Abstract

(57) [Problem] To provide a joint structure of a crane attached to both sides of a front part of glasses, without using a general joint such as a hinge.
Provided is a crane joint structure that is capable of flexing deformation by forming the yolo with a material having excellent spring properties. SOLUTION: Ring portions 7 are provided on both sides of a front portion 10.
And one fixing piece 8 of a coiled spring 5 composed of a coil spring having both fixing pieces 8 and 9 extending from the ring portion 7, a crane 6 is attached to the other fixing piece 9, and the glasses are removed. In the free state, the coil spring is adjusted so that the crane 6 is folded.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a crane joint structure of a spectacle frame that can be stably mounted without rattling.

[0002]

[Prior art]

 The vine of a general glasses frame is foldably connected via a hinge. The yolo is brazed to the outside of the rim on which the lens is fitted, and the two hinge pieces that form the hinge are brazed to the inside surfaces of the ends of the yoro and the vine, and the yoro is fixed to the front fixed to the yolo. Crane can be folded. However, a vine connected via a small hinge cannot sustain a stable folding operation forever. In other words, small hinges loosen their shaft screws or wear the sliding surfaces, causing looseness, resulting in poor stability of the vine, and causing the glasses worn to be displaced and sometimes dislodged.

[0003] In addition, the hinge requires accuracy due to its small size, and furthermore, the most opened state is substantially in line with the side piece of the L-shaped yoroi, and has a joint structure that cannot be opened further. . Of course, if you only wear glasses on your face, this is enough to open the vine, and the vine has some springiness, so it may be slightly curved and fit on your face I can do it.

[0004] However, it is only for a short period of time after the purchase of the glasses that the user fits the face only with the spring characteristics of the vine and the glasses worn on the face do not shift. The spring characteristics of the crane itself are always constant depending on the material as long as it is not extremely bent and plastically deformed, and can return to the original shape if the force is removed, but the hinge connecting the crane as described above In the conventional joint structure of a vine using only hinges, there is no means to absorb the impact force when a certain impact is applied to the front frame. In some cases, the lens may be damaged or the frame itself may be bent.

By the way, as one means for solving such a problem of the eyeglass frame, a joint structure in which the vine can be opened slightly more outwardly from the straight state with the side piece is desired. Used in FIG. 2 shows a conventional example of this joint structure, which is called a spring hinge. In other words, the basic idea of the spring hinge is that a fixed butterfly (b) is fixed to the yoke (a) by brazing, and the other butterfly is a sliding butterfly (c) to slide a fixed distance. By forgiving it is possible to give the vine (d) an outward opening.

A guide groove is formed in the vine (d), and the sliding butterfly (c) slides using the guide groove as a guide. A coil spring is provided in the internal cavity of the sliding butterfly (c). When (4) is settled and the vine (4) is opened outward, the sliding butterfly (5) is pulled toward the fixed butterfly (5) and compressed. The coil spring (e) hits the claw (g) provided at the entrance of the internal cavity of the sliding butterfly (c) and locked in the slot (f) of the vine (d), and the claw (g) functions as a stopper. are doing. As a result, the restoring force of the coil spring (e) acts on the vine (d) and attempts to return the vine (d) to its original position.

By the way, the hinge structure in which the coil spring (e) is incorporated in the sliding butterfly piece (c) is complicated as shown in the figure, so that the number of manufacturing steps is increased, and the cost is high. It becomes a hinge. In addition, there is a problem that it is easy to break down due to the complicated structure, and it is difficult to repair once it breaks down. If the coil spring (e) and the core metal are pushed into the internal cavity of the sliding butterfly piece (c) and locked on the claw (g), the claw (g) and the coil spring (e) cannot be removed.

That is, while the pawl (g) is restrained by the guide of the sliding butterfly (c), the locking piece (h) of the pawl (g) fits into the slot (f), and the head of the cored bar. (I) comes into contact with the tab (G) with a spring force, and a force acts to push the locking piece (H) into the slot (F). Therefore, the nail (g) cannot be removed from the sliding butterfly (c), and at the same time, repair cannot be performed.

[0009]

[Problems to be solved by the invention]

 As described above, the conventional crane joint structure has the above-described problems. The problem to be solved by the present invention is this problem, and without using a general joint such as a hinge or the like, a yolk is made of a material having excellent spring properties, thereby enabling a flexural deformation of the eyeglass frame torsion joint. Provide structure.

[0010]

[Means for solving the problem]

 The crane joint structure of the eyeglass frame of the present invention does not use a joint member such as a hinge as in the related art, but directly attaches a crane to the yoke attached to both sides of the front part to give a joint function to the yoke. . That is, Yoroy is constituted by a coil spring, and one end of the coil spring is fixed to the front portion, and the other end is fixed to the vine. The coil spring can be deformed, and the vine can be folded inward and pushed open from the open state. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0011]

【Example】

 FIG. 1 is an embodiment showing an eyeglass frame to which a crane is attached using the crane joint structure of the present invention. FIG. 1A shows the front of the front part. Both half rims 1 and 1 are brazed and connected by a connecting member 2, and a lens 3 fitted to the half rim 1 is held by a water thread 4. The water thread 4 is fixed to both ends of the half rim 1 so as not to come off. The outer rims 5 and 5 are brazed to the outside of the half rims 1 and 1, and the vine 6 is directly attached to the outer rim 5.

By the way, the front part of the eyeglass frame is not limited to the case using such a half rim, but may be a front part configured using a ring-shaped full rim. You can do it. In the present invention, the form of the front part is out of scope, and is characterized by the yoro 5 attached to both sides of the front part.

FIG. 1B is a plan view of the yoke 5, and FIG. 1C is a front view of the yoke 5. One end of a coil spring is brazed to the front portion, and a crane 6 is connected to the other end of the coil spring. Here, the coil spring has a ring portion 7 around which a springy wire is wound, and has a fastening piece 8 extending to one end and a fastening piece 9 extending to the other end. 10 and 6 are brazed. The coil spring can fold and open the crane 6 by changing the size (outer diameter) of the ring portion 7.

Here, when the glasses 6 are in a free state when the glasses are removed from the face, the coil spring is adjusted so as to be in a substantially folded position. Then, when putting on the glasses, the crane 6 is pushed outward and opened, but the spring force accompanying the deformation of the coil spring acts from the side of the face to the head. Therefore, the worn glasses can be stabilized.

Although the yoke 5 shown in the above embodiment forms a single-turned ring portion 7, the ring portion 7 may have a plurality of turns. Further, the spring coefficient of the multi-turned yoroi 5 is smaller, the opening and closing operation of the vine is smoother, and the pressing force applied to the side of the face when wearing glasses is not extremely increased. Therefore, even if the material is excellent in spring property, it is not suitable for a yoke having no ring portion 7.

[0016] As described above, the crane joint structure of the present invention is configured by forming the yoke with a coil spring having excellent spring properties, and connecting the crane to the fixing piece of this yello, and has the following effects. Can be obtained.

[0017]

[Effect of the invention]

 In the crane joint structure according to the present invention, the crane is directly attached to a yoke made of a material having excellent spring properties. The yoke is constituted by a coil spring provided with a ring portion, and the coil spring is deformed to open and close the crane. If the coil spring is configured so that the vine is almost folded when the glasses are removed from the face, when the vine is opened and the glasses are worn, the vine applies an appropriate spring force to the side and head of the face. By working, the glasses are stable.

[0018] Then, by attaching one fastening piece extending from the coil spring to the front part and brazing the other fastening piece to the vine, the vine can be easily attached. The structure is simpler than the conventional joint using hinges and the like, and the manufacturing cost is reduced. In addition, there is no problem that the vine is loose and the glasses are displaced.

[Brief description of the drawings]

FIG. 1 is an embodiment showing a crane joint structure of an eyeglass frame according to the present invention.

FIG. 2 shows a conventional spring hinge.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Half rim 2 Connecting member 3 Lens 4 Water thread 5 Yoroi 6 Crane 7 Ring part 8 Fastening piece 9 Fastening piece 10 Front part

Claims (2)

[Utility model registration claims] In a joint structure of a crane attached to both sides of a front part of eyeglasses, a fixing part of a yoke composed of a coil spring having a ring part and two fixing parts extending from the ring part is fixed to the front part. A crane joint structure for a spectacle frame, characterized in that a crane is attached to the other fastening piece, and a coil spring is adjusted so that the crane is folded in a free state where the glasses are removed. 2. In a joint structure of a crane attached to both sides of a front part of eyeglasses, a fixing part of a yoke composed of a coil spring having a ring part and two fixing parts extending from the ring part is fixed to the front part. A crane joint structure for eyeglass frames, characterized in that a crane is attached to the other fastening piece, and a coil spring is adjusted so that the crane is in a half-folded state when the glasses are removed in a free state.