JP3031878U - Rimless eyeglasses with complementary bands and straps - Google Patents

Abstract

[PROBLEMS] To provide rimless eyeglasses in which the spectacle lens is free from backlash, the lens assembling work can be easily performed, and the lens around the bolt mounting portion is not broken. A method of holding a lens by a band and a method of holding a lens by fixing a strap to a cut slit formed in the lens are mutually complementary. [Effect] Since the lens is held by skillfully combining the band method and the strap method, the spectacle lens does not rattle and is excellent in stability. In addition, by adopting the method of cutting the slits in the lens, the processing of the lens becomes easy, and the work of assembling the lens at an eyeglass shop etc. can be done easily and efficiently, The lens around the bolt mounting part will not crack.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention is an improvement of rimless spectacles, and more specifically, it utilizes the advantages of conventional rimless spectacles by skillfully combining the mechanism of conventional band-type rimless spectacles and the mechanism of strap-type rimless spectacles. At the same time, the present invention relates to practical rimless eyeglasses with band straps that complement the shortcomings.

[0002]

[Prior art]

 As is well known, rimless spectacles have a wide field of view and are light in weight, so that they are popular among young spectacle wearers these days. Among them, band-type rimless eyeglasses that hold the lens with a nylon fiber band and strap-type rimless eyeglasses in which the lens is bolted directly to the straps provided on the bridge and brackets are popular.

However, in the former band type, the support of the lens may be loosened due to deterioration of the band or changes in temperature in four seasons. For this reason, the lens has rattled, the form that should function as eyeglasses is not stable, and in the worst case, the lens may fall off.

On the other hand, in the conventional strap-type rimless spectacles, it is extremely difficult to perforate the lens while aligning the PD of the wearer's pupil position with the optical axis of the lens. However, there was a problem that only skilled engineers could do it. In order to accurately drill the bolt holes in the lens without disturbing the PD, it is very precise to mark the position of the lens that is opposite to the fastening hole provided in the strap and drill the hole as the marking position. This is because various processing techniques are required.

Further, the strap-type rimless eyeglasses often cause lens cracks around the drilled bolt holes. That is, when the temples spread outward when the glasses are attached and detached, the opening external force concentrates around the mounting bolts, and this concentration of the opening external force caused the lens crack.

[0006]

[Problems to be solved by the device]

 The present invention has been made in view of the above-mentioned drawbacks of the conventional rimless eyeglasses, and the lens can be easily processed without rattling the lens. It is a technical subject of the present invention to provide rimless eyeglasses that are complementary to band straps and do not cause cracks.

[0007]

[Means adopted for solving the problem]

 In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention forms a front part F by bolting a pair of lenses 1.1 at the left and right ends to the center strap parts 21, 21. The bridge 2 and the left and right lenses 1 and 1 in the front part F are connected to the end straps 31 by bolts, and the temples 4 and 4 are attached to each of the carrying parts 32 brought out to the eyepiece side. A band groove 11 is provided around the outer peripheral edge of the left and right lenses 1.1, and the center strap portion 21 and the end strap portion 31 of these lenses 1.1 are attached. At the positions corresponding to and, slits 12 and 13 are formed inward from the outer edge of the lens, and the bridge 2 and the bracket edge 3 and 3 are brought into contact with the outer peripheral edges of the left and right lenses 1.1. Hit plate The buckles 23 and 33 are provided respectively, and at least one fastening hole h and h are formed in the upper and lower parts of the buckle 23 and 33, respectively, and the band 5 is fitted in the band groove 11 of the lens 1.1. And the ends of the band 5 are fixed to the fastening holes h and h of the contact plate buckles 23 and 33, respectively, while the center strap 21 and the end strap 31 make the bands 5 in a tensioned state. As described above, it is characterized in that means for connecting the lens 1.1 with the bolt 6 to the required position of the corresponding slit slits 12 and 13 is adopted.

Further, in the device according to the second aspect, in addition to the structure of the device according to the first aspect, the shoulder portion 34 of the central portion 22 of the bridge 2 and the end strap 31 and the carrying portion 32 in the bracket joint 3 is made of a spring material. It is characterized in that it is made of metal wire.

According to a third aspect of the invention, in addition to the structure of the first aspect of the invention, the end portion of the band 5 sewn and fixed to the fastening holes h and h of the plate buckle 23 has the slit 12 and the slit 12 of the lens 1. It is characterized in that it is fitted in 13 and fixed.

According to a fourth aspect of the invention, in the structure of the first aspect of the invention, a band pinching groove 51 for pinching the band 5 is recessed on the lens contact surface of the pad buckle 23. It is characterized by the addition of.

[0011]

[Embodiment of device]

 Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings. 1 is a perspective view of the band / strap complementary rimless spectacles according to the present embodiment, FIG. 2 is a perspective view of the bracket tom according to the present embodiment, FIG. 3 is a perspective view of the bridge according to the present embodiment, and FIG. FIG. 5 is a partial cross-sectional view showing a state in which an external force is applied to the strap portion of the conventional strap-type rimless glasses, and FIG. 5 is a partial cross-sectional view showing a state in which an external force is applied to the strap portion in the present embodiment.

In FIG. 1, what is designated by the symbol F is a pair of left and right lenses 1.1 held by a band 5.5 stretched between a bridge 2 and a bracket tip 3.3. It is the front part. The central portion 22 of the bridge 2 is formed of a β-layer titanium-based spring metal wire, and center strap portions 21 and 21 are attached to both left and right ends of the central portion 22.

On the other hand, as shown in FIG. 2, the bracket tip 3/3 is provided with an end strip portion 31, 31 on the lens side. On the outer side of the bracket 3, there are shoulder parts 34, 34 made of β-layer titanium-based spring metal wire so as to be brought out to the eyepiece side. The carriage 4 is provided with a carrying section 32, which folds and supports the temple 4.

Reference numerals 23 and 33 indicate contact plate buckles formed on the lens side of the bridge 2 and the bracket edge 3 .3, and these contact plate buckles of the left and right lenses 1.1. Abuts the outer peripheral surface for stable retention. Each of the contact plate buckles 23 and 33 is provided with four fastening holes h, h, h, and h for fixing the band 5 by sewing, and further, the contact plate buckles 23 and 33 have lens contact holes. A band holding groove 51 for stabilizing the fitting of the band 5 is provided in the contact surface.

Further, a pair of left and right plastic lenses 1.1 are provided with band grooves 11, 11 into which the band 5 can be fitted, and a notch slit is formed at each inner end of the lens 1.1. While the lits 12 and 12 are cut out, the slit slits 13 and 13 are cut out at the opposing outer ends of the lenses 1.1 and 1.

In the present embodiment, the band 5 is sewn and fixed to each of the fastening holes h formed in the buckles 23 and 33 of the contact plates, so that the band 5 is stretched like an eyeglass rim. ing. The band 5 is fitted along the band grooves 11 formed in the left and right lenses 1.1. Further, by inserting the bolt 6 into each of the center strap portion 21 and 21 and the end strap portion 31 and 31, the bolt 6 is also inserted into each of the cut slits 12, 12, 13, and 13. By inserting the resin washers 62, 62 into the bolts 6 and fixing them with the nuts 61, the lenses 1.1 are bolted to the strap portions 21, 21, 31, 31.

In the band / strap complementing rimless glasses of the present embodiment, the end of the band 5 can be fitted into each of the cut slits 12 and 13, so that the end of the band 5 is hidden. It is possible to provide a neat appearance.

Further, the present embodiment is characterized in that the spectacles can be assembled by lens processing simpler than the conventional strap-type rimless spectacles. That is, in the conventional strap-type rimless eyeglasses, the bolts 6 cannot be smoothly inserted unless the relative positions of the fastening holes formed in the straps and the bolt holes are exactly the same. , I will come to support the eyeglasses assembly work. In other words, accurate positioning was always required when drilling bolt holes in the lens. However, in the case of the present embodiment, since the lens 1.1 is held by the band 5, the notch slits 12 and 13 which are less stable in screwing than the conventional bolt holes are attached to the lens 1.1. It is possible to cut down. In other words, in the case of the present embodiment, even if the positioning from the lens peripheral edge toward the center direction is not strictly performed, the eyeglass assembly work is not supported, so that the lens can be easily processed. At the same time, the bolt 6 can be fitted and fixed in the notch slits 12 and 13 while the bolt 6 is inserted into the fastening holes formed in the strap portions 21 and 31 in advance, so that the eyeglass assembly Standing can be performed easily and efficiently.

Further, the present embodiment is characterized in that the lens breakage of the screw fastening portion is less likely to occur as compared with the conventional strap type rimless glasses. That is, in the conventional strap-type rimless spectacles, as shown in FIG. 4, when the spectacles are attached / detached, the opening external force is concentrated especially on the points A and B, and the lens breaking is likely to occur due to the opening external force. . However, in the case of the present embodiment, as shown in FIG. 5, since the screw fastening portion is formed not as the bolt hole but as the slit 13, the bolt 6 swings in the slit 13 in the slit direction. Permissible. For this reason, it is possible to prevent local concentration of the opening external force on the lens 1.1, so that the lens does not crack. However, in the present embodiment, since the superelastic alloy is adopted for the shoulder portions 34, 34 connected to the strap portions 31, 31, the opening external force itself is absorbed and the lens 1.1 is almost affected. Since there is no lens breakage, it is further reduced.

The embodiment of the present invention is generally as described above, but the present invention is not limited to the above-mentioned embodiment, and various modifications are made within the scope of the “claim for utility model registration”. Is possible.

For example, in the case of the present embodiment, a colorless nylon fiber band is used. However, the band color may be changed or each member may be configured according to the preference of the eyeglass user. It is also possible to change the material that is used and to implant stud bolts in each strap instead of using bolts, and it goes without saying that any of these modifications are within the technical scope of the present invention. Nor.

[0022]

[Effect of device]

 As described above with reference to the embodiments, the bolt holes are conventionally formed in the lens, but in the present invention, the notch slit is formed. In other words, when the slit is drilled, the lens can be roughly engraved from the peripheral edge toward the center, which simplifies lens processing and facilitates lens installation work at eyeglass stores. Moreover, it becomes possible to do it efficiently.

Further, the band / strap complementing rimless eyeglasses of the present invention adopt the band-fixing fixation of the lens and the fixing by the bolt-nut method so that the lens does not rattle. It has excellent shape stability and does not cause any problems such as falling off.

Further, in comparison with the conventional strap-type rimless glasses, the external force for opening, which is one of the causes of the lens breakage in the present invention, is not locally applied to the lens, so that the lens breakage is less likely to occur, and the extension The reliability of the product will also increase.

As described above, according to the present invention, by combining the features of each of the conventional band-type rimless spectacles and the strap-type rimless spectacles, the drawbacks of these can be eliminated at once and the structure is It is simple, economical without causing any worry of increasing the production cost, and its practical utility is extremely large.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of band / strap complementing rimless glasses of the present embodiment.

FIG. 2 is a perspective view of a bracket tip in the present embodiment.

FIG. 3 is a perspective view of a bridge according to the present embodiment.

FIG. 4 is a partial cross-sectional view showing a state in which an external force is applied to the strap portion of the conventional strap-type rimless glasses.

FIG. 5 is a partial cross-sectional view showing a state in which an external force is applied to the strap according to this embodiment.

[Explanation of symbols]

 1 lens 11 band groove 12 notch slit 13 notch slit 2 bridge 21 center strap part 22 center part 23 plate buckle 3 bracket toe 31 end strap part 32 carrying part 33 plate buckle 34 shoulder part 5 temple 6 band 6 bolt 61 nut 62 Washer h Fastening hole F Front part

Claims (4)

[Scope of utility model registration request] 1. A bridge 2 which forms a front portion F by bolting a pair of lenses 1.1 at the left and right ends to a center strap portion 21 and 21, and ends on the outside of the left and right lenses 1.1 in the front portion F. A carrying section 32 that is connected by bolting the strap section 31 and is brought out to the eyepiece side.
Bracket Ji 3 with Temples 4 and 4 attached to each
.3, and a band groove 11 is provided around the outer peripheral edge of the left and right lenses 1.1, and the center strap portion 21 and the end strap portion of these lenses 1.1 are also provided.
A slit 12 or 13 is formed inward from the outer edge of the lens at a position corresponding to 31. The bridge 2 and the bracket edge 3 or 3 contact the outer peripheral edge of the left or right lens 1 or 1. Contact plate buckles 23, 33 that contact each other are provided, and at least one fastening hole h is provided in the upper and lower parts of the contact plate buckles 23, 33.
Each of the lenses 1 and 1 is provided with the band 5 in the band groove 11 of the lens 1.1 so that the end of the band 5 is fastened to the corresponding buckle 23, 33. Center strap 21 and end strap 31
The band strap complementary rimless spectacles, characterized in that the bands 5 are connected to the lens 1.1 by bolts 6 at required positions of the corresponding slit slits 12 and 13 so that the bands 5 are in a tensioned state. 2. The band strap complement according to claim 1, wherein the central portion 22 of the bridge 2 and the shoulder portion 34 of the end strap 31 and the carrying portion 32 in the bracket joint 3 are made of a spring metal wire. Rimless glasses. 3. The end of the band 5 sewn and fixed in the fastening holes h, h of the plate buckle 23 is fitted and fixed in the cut slits 12, 13 of the lens 1. Item 1. The rimless spectacles with complementary band straps according to item 1. 4. The band clamping groove 51 for clamping the band 5 is formed in the lens contact surface of the plate buckle 23.
Rimless eyeglasses with complementary band straps as described.