JPH08245U - Glasses frame vine - Google Patents

Abstract

(57) [Summary] [Purpose] I feel pain even if I wear glasses for a long time,
Provided with a vine that prevents the lens from coming off due to deformation of the front frame when wearing or removing eyeglasses without getting tired. [Structure] The vine 6 of the present invention is provided with a highly elastic resin piece 9 on the front frame side, and the resin piece 9 is attached to the resin piece 9 so that the metal cores 7 and 8 do not come out or rotate. Embed and configure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a temple of an eyeglass frame.

[0002]

[Prior art]

 As is well known, the spectacle frame has vines attached to both sides of the front frame, and the vines are connected in a foldable state. The folding of the vine is done by using hinges as joints, and glasses are worn on the face with both vines open. In this case, the vine will hit both sides of the face and the tip will be hooked to the ear, but the vine should be attached to both sides of the face to some extent so that the worn glasses do not rattle or become misaligned. Abutting with pressure of. Therefore, in the case of a metal frame, a resin modern is attached to the tip of the vine to prevent the thin vine from touching the skin and causing pain.

By the way, there are metal vines having a modern tip and resin vines. The resin vines are entirely made of resin, and a metal core is embedded. There is a vine. The metal vine is a thin wire rod that is rich in spring property, and has a modern tip to improve the skin contact, but it feels pain when worn for a long time. This is considered to affect that the pressure per unit area becomes considerably large even if the pressing force applied to the skin by the thin vine is not so large.

On the other hand, since the resin-made vine has such a large thickness, the surface pressure acting on the skin is small, and there are few cases where the user feels pain when wearing the vine. There is a feeling of pressure because it is not possible to make fine adjustments and the elasticity is small. In addition, the problem that the thick vine deteriorates the design as an eyeglass frame is an element that cannot be ignored. Therefore, in order to fit the skin by changing the shape of the tip of the vine, a metal core is embedded, but if the core is embedded, the springiness of the resin vine will be further lost. .

On the other hand, in recent years, in consideration of the weight reduction and design of the metal eyeglass frame, not only the above-mentioned temple but also the front frame holding the lens is made of a thin wire material. At times, there is a frame in which the lower half of the rim is removed and the lens is fixed with a water thread. In such a frame, the lens fixed to the rim is easy to come off. In particular, if the vine is opened when wearing glasses, a large bending moment acts on the hinge and the end part that connect the vine, and this bending moment deforms the rim of the front frame, and the lens is disengaged. It is a big cause. That is, the bending rigidity of the front frame is low and the contact area with the lens for fixing the lens is small. If a thick wire is used to increase the bending rigidity, the frame will be heavy and inferior in design. Of course, such a thing occurs not only in the case of a metal frame but also in the case of a resin frame.

[0006]

[Problems to be solved by the present invention]

 Thus, the above-mentioned problems remain in the eyeglass frame. The problem to be solved by the present invention is this problem, and there is no feeling of pressure or pain even if it is worn for a long time, and it is possible to provide a vine that prevents the glasses from rattling and misaligning. The purpose is that the bending moment that accompanies the opening and closing of the vine does not act on the front frame.

[0007]

[Means for Solving the Problems]

 The vine for eyeglass frames of the present invention is a metal vine, but is characterized in that a resin is provided at the base. This resin has a property of high elasticity, and the bending moment acting on the vine is absorbed by the resin piece. The bending moment generated when the temple is opened is the largest at the resin portion that is the base of the temple. The present invention absorbs the bending moment by providing a resin piece at this portion. Therefore, since the resin piece and the metal core are connected to form a crane, one end of the core is embedded in the resin piece, and the resin piece and the core are firmly connected at the embedded portion. Is done. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0008]

【Example】

 FIG. 1 shows an eyeglass frame using the crane of the present invention. In the figure, 1 and 1 are rims, 2 is a bridge, 3 and 3 are armor pads, 4 and 4 are nose pads, and a vine 6 is foldably connected to the armor members 3 via hinges 5. The rims 1 and 1 are symmetrical with respect to each other via the bridge 2, and the lens is fixed to the rims 1 and 1, but the rigidity of the front frame made of the thin wire is not high, but the above-mentioned vines are used. The bending moment when opening 6 is not transmitted to the front frame.

FIG. 2 shows an embodiment of the vine 6 of the present invention. The vine 6 is composed of cores 7 and 8 and a resin piece 9. The core 7 has a short length and is connected to the end piece 3 via the hinge 5, one core 8 is long, and a modern (not shown) is attached to the tip of the core 7, and the core 7 is connected between the cores 7 and 8. Forms the temple 6 by connecting the cores 7 and 8 with the resin piece 9 interposed. The cores 7 and 8 are connected by embedding the ends of the cores 7 and 8 in the resin piece 9, but the ends of the cores 7 and 8 should be connected so that the cores 7 and 8 and the resin piece 9 are firmly connected. Holes 10 and 10 are formed in the holes 10, and the holes 10 and 10 are also filled with resin.

FIG. 3 is another form showing a connection state between the core 8 and the resin piece 9. A thread groove 11 is formed at an end of the core 8, and the thread groove 11 is also filled with resin. There is. There are various other forms of connection between the resin piece 9 and the cores 7 and 8, and the ends of the cores 7 and 8 are embedded so as not to come off. Of course, not only the cores 7 and 8 are prevented from coming off, but also the rotation is prevented. The vine 6 shown in FIG. 2 has cores 7 and 8 extending on both sides of the resin piece 9, but the structure shown in FIG. 4 may be used without using the core 7 extending toward the front frame.

In the temple 6 shown in FIG. 4, a butterfly piece 12 is used instead of the core 7, and a part of the butterfly piece 12 is embedded in a resin piece 9. Another butterfly piece 13 to be combined with the butterfly piece 12 is attached to the end piece 3, and the two butterfly pieces 12 and 13 are flexibly connected to each other around a screw 14. Further, the embedded portion of the butterfly piece 12 is provided with a screw groove 11 for preventing the slip-out prevention as in the above embodiment.

By the way, the two cores 7, 8 or the resin piece 9 connecting the core 8 and the butterfly piece 12 has a property of being highly elastic, and the bending moment generated when the temples 6, 6 are opened is It must be absorbable by the resin piece 9. For example, if a resin piece 9 made by injection-molding polyphenylsulfone or polyallylsulfone as a material under high temperature and high pressure and annealing if necessary is used, it is comparatively thin and elastic. It becomes the resin piece 9 rich in.

When wearing or removing eyeglasses, the temples 6, 6 are pushed apart, and this force acts as a moment to bend the temple 6, and becomes the largest in the vicinity of the hinge at the root. If the rigidity of the temples 6 and 6 (elastic second moment) is large, the bending moment is transmitted to the front frame as it is, and the rims 1 and 1 of the front frame are bent or twisted. The resin piece 9 provided on the vine 6 of the present invention lowers the rigidity of the vine 6 at its root portion and eliminates the influence on the front frame. As described above, the spectacle frame vine of the present invention has the resin having a high elasticity at the base thereof, and the following effects can be obtained.

[0014]

[Effect of device]

 Since a resin piece is provided at the base of the vine (on the front frame side), the bending moment generated by the external force acting on the tip of the vine is absorbed by the deformation of this resin piece, which affects the rim of the front frame. Is shut off. Therefore, it is possible to eliminate the phenomenon that the lens comes off when wearing or removing the glasses. Further, this resin piece moderates the elasticity of the vine and relieves the pressing force applied to the skin by the vine, so that there is no feeling of pressure or pain, and wearing glasses for a long time does not cause fatigue. The core connected to the resin piece has its end embedded in the resin piece, and is equipped with measures to prevent it from slipping out and preventing rotation, while the resin piece is decorated using its enlarged surface. Therefore, it is superior in both functionality and appearance to conventional vines.

[Brief description of drawings]

FIG. 1 is a spectacle frame using the vine of the present invention.

FIG. 2 is an embodiment showing a crane of the present invention.

FIG. 3 is a connection form of a resin piece and a core.

FIG. 4 is a connection mode in which a butterfly piece is embedded in a resin piece without using a core on the front frame side.

[Explanation of symbols]

 1 rim 2 bridge 3 armoring 4 nose pad 5 hinge 6 vine 7 core 8 core 9 resin piece 10 hole 11 screw groove 12 butterfly piece 13 butterfly piece 14 screw

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yoshitaka Nakamura, 22-22, Nikko, Fukui City, Fukui Prefecture (72) Inventor: Shigeyoshi Yamaguchi 26-13-19 Shimonoda Town, Sabae City, Fukui Prefecture

Claims (2)

[Scope of utility model registration request] 1. A spectacle frame, comprising: a temple that is foldably connected to an armature provided on both sides of the front frame via a hinge, and a short core that connects to the hinge and a long core that has a modern tip. A spectacle frame characterized in that a highly elastic resin piece is provided between the core and the resin piece so that the ends of the core are embedded in the resin piece so as not to come off or rotate. Vine. 2. The temple of a spectacle frame according to claim 1, wherein instead of the short core on the front frame side, a part of the hinge piece of the hinge connected to the armature is embedded in the resin piece.