JPH0736124U - Lens screw fastening structure for eyeglasses - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the durability of rimless glasses. [Structure] A small hole is opened in the lens, a hard resin cylinder is inserted, and after a hard resin washer is inserted, a metal screw is inserted into the cylinder and screwed. [Effect] The screw is no longer in direct contact with the lens, which is easily scratched, and durability is improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention relates to a lens screwing structure applied to rimless glasses and the like, and is useful for holding the lens stably and safely.

[0002]

[Prior art]

 Rimless eyeglasses that do not have a rim for holding the lens are popular because they have a neat appearance, but there are many complaints that the lens part wobbles or the lens breaks when I buy it. However, despite this many complaints, durable rimless eyeglasses have not been marketed. This is because most rimless glasses have a structure in which a hole is made in the lens and the screws and nuts are used to screw it in, so it is more fragile than glasses with rims such as metal. It was thought that it was unavoidable to some extent. As for lenses, because high refractive index and translucency are important, it is difficult to select a highly durable material, and therefore it is impossible to prevent damage to the screw holes by making them larger or cracked. Of. In addition, since the metal material is used for the screw, there is another problem that the lens material and the screw material are deformed in different ways, and the hole in the lens is more and more damaged.

[0003]

[Problems to be solved by the device]

 However, conversely, it suggests that durable rimless spectacles can be realized if the holes for screwing the lens are made strong. In view of this, it is a technical object of the present invention to provide a rimless ophthalmoscope that is more durable than conventional products by preventing deformation of the screwing holes of the lens.

[0004]

[Means for Solving the Problems]

 The means adopted to solve the above problems in the present invention will be described below. The small hole to be opened in the lens has a diameter larger than the screw, and a hard resin cylinder is housed in the small hole. The washer is placed on both sides of the lens, and then the glasses are fixed with screws. In other words, the circumference of the lens hole is reinforced by a hard resin cylinder and washer to make it strong. It is also possible to integrate one of the washers with the cylinder to improve productivity.

[0005]

【Example】

 Hereinafter, the present invention will be described based on embodiments.

A plurality of cylinders 1 with washers and washers 2 are molded using a hard polycarbonate resin. The cylinder with washer 1 includes a cylinder portion 11 having an inner diameter of 1.4 mm and an outer diameter of 1.9 mm, and a washer portion 12 having a hole having the same diameter as the inner diameter of the cylinder portion 11.

The lens 3 and the spectacle parts 5 and 6 are processed and manufactured into a required shape. Further, small holes 31 and 31 are opened at important points of the lens 3, and the cylinder portion 11 and 11 of the cylinder with washer 1 and 11 are inserted from the lens front side until the washer portion 12 and 12 come into contact with the lens surface. Insert into 31. The diameter of the small hole 31 formed in the lens is adapted to the outer diameter of the cylinder portion 11. Then, the screws 41, 41 are inserted into the screw holes 51, 61 of the spectacles parts 5, 6 and are further pierced into the washer part 12, 12 and the cylinder part 11, 11 inserted in the small holes 31, 31 of the lens 3. . The eyeglass parts 5 and 6 can be connected to the lens 3 by aligning the washers 2 and 2 with the surface of the lens 41 through which the screws 41 and 41 have penetrated, and fitting and fastening the nuts 42 and 42 into the screws 41 and 41.

Rimless eyeglasses are manufactured by using the method of connecting the lens 3 and the eyeglass components 5 and 6. Since the screws 41 and the nuts 42 are made of a hard metal material, the translucent resin lens 3 is very easily damaged. However, if a cylinder made of hard resin and a washer are placed inside and around the small hole 31 of the lens 3, as compared with the case where the screw 41 or the nut 42 directly contacts the circumference of the small hole 31 of the lens 3, Very hard to scratch. Therefore, rimless glasses that are much stronger than conventional products can be obtained. In addition, since the screws and nuts of the rimless eyeglasses do not come into direct contact with the lens, the lenses are not damaged even if they are fastened with a little stronger force than the conventional rimless eyeglasses. In other words, the lens can be fixed more firmly.

Although the present embodiment is configured as described above, the screw fixing structure of the lens of the present invention is not limited to the above embodiment and can be applied to various glasses, for example, it is used in combination with a band for hanging the lens. Or you can use it for semi-rimless glasses. It is also possible to prepare multiple types of washers with different thicknesses, or to stack multiple sheets and use them.

[0010]

[Effect of device]

 As described above, the lens screwing structure of the present invention has a hard resin cylinder and a washer interposed between the lens and the screw to prevent the lens from being scratched and increase the lens screwing strength. I was able to.

[Brief description of drawings]

FIG. 1 is a perspective view of a cylinder with a washer in an embodiment.

FIG. 2 is a plan view of the washer in the embodiment.

FIG. 3 is an exploded view of the embodiment.

[Explanation of symbols]

 1 Cylinder with washer 11 Cylinder part 12 Washer part 2 Washer 3 Lens 41 Screw 42 Nut

Claims (2)

[Scope of utility model registration request] 1. A metal screw for screwing a lens to spectacles, a small hole formed in the lens with a diameter larger than the screw, a hard resin cylinder, and two or more hard resin washers. With a cylinder inserted in the small hole and hard resin washers stacked around the small holes on both sides of the lens, screws are inserted into the cylinder to fix the lens to the glasses. Lens screw structure for eyeglasses. 2. The eyeglass lens screwing structure according to claim 1, wherein one of the washers is integrated with an end surface of the cylinder.