JP3009223U - Lens fastening mechanism for rimless glasses - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Lenses for rimless eyeglasses that will not rattle the lens fastening part even if it has been used for many years, and that can easily and securely attach all types of eyeglass lenses. To provide a fastening mechanism. [Structure] A support piece including a locking portion 51 to be screwed together with the end piece 2 in the lens fixing hole 11 and a contact portion 52 to support the end piece 2 from above and below and to abut the side surface of the spectacle lens 1 at the same time. 5 was formed, and the end piece 2 and the spectacle lens 1 were fixed to each other by the support piece 5 separate from the end piece 2. [Effect] Since the support piece and the end piece are formed separately, even if the end piece component is deformed, the contact between the support piece and the side surface of the spectacle lens does not become insufficient, and the lens fastening portion Since it does not rattle easily and the support piece can be bent and adjusted, it can be applied to any spectacle lens.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to improvement of a lens fastening mechanism for so-called two-point type rimless eyeglasses, which can prevent rattling of the lens fastening mechanism part of the conventional two-point type rimless eyeglasses, and can be applied to lenses of any shape. It provides a possible lens fastening mechanism.

[0002]

[Prior art]

 Recently, eyeglass frames that have a wide field of view, are lightweight, and have a clean design have been well received. In particular, two fastening holes are formed near the periphery of the spectacle lens, and the nose pad is used in these fastening holes. The so-called "two-point rimless eyeglasses", which are made by directly fixing the bridge parts that are vertically installed and the end piece parts that are pivotally attached to the ear hook temples, are very popular.

However, at the same time, there have been many complaints about the two-point type rimless spectacles, in which the screwed portion is immediately rattled. In conventional two-point eyeglasses, in order to prevent the screwed bridge component and end piece component from rotating at this screwed part, the bridge component and end piece component respectively contact the lens side surface. There is a support piece that makes it possible to securely fasten each component, but because the rimless glasses are simple in structure, the external force applied to the spectacle frame is It is easy to concentrate on the fastening part, and the bridge parts and end piece parts are often deformed while using the eyeglasses. As a result, rattling may occur at the lens fastening part.

That is, in the conventional product, the support piece provided to prevent the rattling of the lens fixing portion is integrally joined to the bridge component or the end piece component by brazing or the like. , The deformation of the bridge parts and end piece parts directly affects the contact state between the support piece and the side surface of the lens. For example, in two-point eyeglasses of the type in which the end piece parts are fixed on the front surface of the spectacle lens. If the end piece component is deformed in the direction of expanding outward (direction of opening the temple), the support piece and the side surface of the lens will be separated, and the lens fastening part will easily rattle. It has become.

Further, even when the eyeglasses are assembled, this problem of rattling is important, and it is necessary to carefully drill the lens fixing hole so that the support piece and the side surface of the lens come into close contact with each other. In other words, it is difficult for eyeglass retailers to adjust the bending of this small support piece, so that considerable attention must be paid to the position of the lens fixing hole. Further, even when lenses having different shapes or lenses having different thicknesses are used, conventionally, it is necessary to prepare a bridge component and an end piece component each having a support piece most suitable for the shape and thickness of the lens each time. Not only that, the cost of these two-point rimless glasses was increased.

[0006]

[Technical issues to be solved]

 Therefore, the present invention was made in view of the above-mentioned drawbacks of the conventional lens fastening mechanism for two-point type rimless spectacles. It is a technical issue to provide a lens fastening mechanism for rimless spectacles that can securely fasten any spectacle lens even when the spectacles are assembled, with the fastening part never rattling. To do.

[0007]

[Means adopted for solving the problem]

 According to the present invention, a spectacle lens 1 having a fastening hole 11 formed near the periphery and a bridge 3 or an end piece 2 are screwed with a bolt 6 and a nut 7 while being supported by a support piece 5 in the fastening hole 11. In the lens fixing mechanism, the locking portion 51 to be screwed with the bolt 6 and the nut 7 in the fixing hole 11 together with the bridge 3 or the end piece 2, and the locking portion 51 in either the front or rear direction. By adopting the technical means of supporting the bridge 3 or the end piece 2 from above and below when it is taken out and forming the support piece 5 from the contact portion 52 that should contact the side surface of the spectacle lens 1. The above problem was solved.

[0008]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings. 1 is a schematic front view of two-point type rimless spectacles configured by using the lens fastening mechanism of the first embodiment, FIG. 2 is a partial plan view of the lens fastening mechanism, and FIG. 3 is the lens fastening mechanism. 4 to 6 are partial plan views showing an example of assembly of the lens fastening mechanism, FIG. 7 is a partially enlarged perspective view of the lens fastening mechanism of the second embodiment, and FIGS. It is a partial schematic perspective view which shows the implementation modification of the support piece of a devised lens fixing mechanism.

[First Embodiment] In the drawing, what is designated by reference numeral 1 is a pair of left and right spectacle lenses, and two spectacle lenses near the periphery of the spectacle lens 1 are attached to each of the two spectacle lenses. Holes 11 and 11 are drilled. In the figure, what is designated by reference numeral 2 is an end piece which rotatably supports an ear hook template (not shown) in the bridge portion 21, and the end piece 2 is provided outside the pair of left and right spectacle lenses 1.1. Each is fastened. In the figure, what is indicated by reference numeral 3 is a bridge in which pad crimps 4 are vertically provided, and this bridge 3 is fixed between a pair of left and right spectacle lenses 1.1.

In the figure, what is designated by reference numeral 5 is a support piece which is a feature of the present invention. As shown in FIG. 3, the support piece 5 of the present embodiment is formed by bending a ring-shaped wire into an angle frame body that is bent into a substantially L shape with a gap in the center. , And a contact portion 52. The locking portion 51 is a portion that is screwed to the spectacle lens 1 with the bolt 6 and the nut 7 in the fastening hole 11 together with the end piece 2, while the contact portion 52 of the support piece 5 is the locking portion described above. It is a portion that is carried out from the portion 51 toward the rear of the lens and sandwiches the end piece 2 from above and below and at the same time contacts the side surface of the spectacle lens 1.

The screw end of the end piece 2 is inserted into the support piece 5 having a substantially L-shaped ring in advance, and the support piece 5 and the end piece 2 are attached together to stop the eyeglass lens 1. The bolt 6 and the nut 7 are screwed into the hole 11 via the two T-shaped washers 8. In this embodiment, a bolt cap 9 is fitted on the end of the bolt 6 so as not to damage the face of the spectacle wearer.

In this lens-fixed state, the support piece 5 is securely fixed to the spectacle lens 1 by the locking portion 51, and the contact portion 52 of the support piece 5 which is securely fixed. However, at the same time as sandwiching the end piece 2 from above and below, it comes into contact with the side surface of the spectacle lens 1 with a certain amount of elastic biasing force in the lens direction. As a result, the end piece 2 is supported from both upper and lower sides (the rotation direction side of the end piece 2) by the contact portion 52 that surely contacts the spectacle lens 1, and the end piece 2 is supported. This prevents the movement of the fastening hole 11 from rotating.

As described above, the abutting portion 52 of the support piece 5 surely prevents the end piece 2 from rotating, but elastic deformation of the end piece 2 in the front-back direction (temple opening / closing direction), Alternatively, plastic deformation is allowed. Therefore, unlike the conventional product, the contact state between the side surface of the lens and the support piece does not become insufficient due to plastic deformation of the end piece 2, and rattling does not occur at the lens fixing portion. .

Further, in the lens fastening mechanism of the present invention, since the support piece 5 and the end piece 2 can be molded separately, the support piece and the end piece are made of the same material as in the conventional case. It is not necessary to select the material of the support piece or the end piece while forming or considering the brazing property. That is, in the case of the present invention, the materials of the support piece 5 and the end piece 2 can be freely selected, and a combination which has been difficult to braze in the past can be made possible. For example, a combination in which the end piece 2 is made of a nickel-titanium superelastic alloy or a β-phase titanium alloy and the support piece 5 is made of an ordinary material such as nickel silver can be adopted without any problem.

It is also possible to form the support piece 5 with, for example, a thermoplastic resin material. For example, if the support piece 5 is formed with a transparent resin material, the ophthalmic lens 1 is scratched by screwing. Not only can this be prevented, but the support piece 5 itself can be made inconspicuous, and it is possible to provide two-point rimless spectacles with a wider field of view and a cleaner design.

Further, in the lens fastening mechanism of the present invention, the support piece is not taken out from the end piece in the vertical direction as in the conventional product, but is taken out from the screwed portion of the spectacle lens 1 in the lens rearward direction. Since it is brought into contact with the side surface of the spectacle lens 1 by this, even if the contact portion 52 of the support piece 5 is formed long, the support piece 5 does not greatly impair the appearance of the eyeglasses. In other words, unlike the conventional support piece that was required to be as small as possible from the viewpoint of designability, in the support piece 5 of the present invention, the bent portion between the locking portion 51 and the contact portion 52 is Alternatively, it is possible to freely adjust the bending at the abutting portion 52. Therefore, the allowable range of positional deviation of the fastening hole 11 formed in the spectacle lens 1 is large, and the spectacle assembly process is significantly facilitated.

Further, since the bending adjustment of the support piece 5 is easy, the same support piece 5 can be used as it is even if the spectacle lens 1 has a different shape or thickness. In the case of conventional products, the support piece, which is difficult to adjust, was formed integrally with the end piece.Therefore, the optimum end piece for each spectacle lens must be prepared each time, which reduces the cost of two-point glasses. It was supposed to be pushed up.

Furthermore, in the lens fastening mechanism of the present invention, the support piece 5 and the end piece 2 are independent, and the fastening direction to the spectacle lens 1 can be changed independently. Therefore, as shown in FIGS. 4 to 6, various fastening variations can be enjoyed.

The one shown in FIG. 4 is a combination of the end piece 2 fixed to the rear surface of the lens and the support piece 5 fixed to the front surface of the lens, and the one shown in FIG. Is fixed to the front surface of the lens, and the support piece 5 is fixed to the rear surface of the lens. In the structure shown in FIG. 6, both the end piece 2 and the support piece 5 are screwed to the rear surface of the lens. The combination is as follows. These fastening variations can be selected according to the user's preference, and the change from one type to another type can be easily performed by adjusting the bending of the support piece 5.

Second Embodiment As shown in FIG. 1 described above, in the lens fastening mechanism of the first embodiment applied to the bridge 3 portion between the pair of left and right spectacle lenses 1 and 1, The pad clings 4 and 4 of the above were directly suspended from the bridge 3, but in the second embodiment described below, the pad clings 4 also fit into the fastening holes 11 of the spectacle lens 1. The bolts 6 and the nuts 7 are screwed to support the support pieces 5.

As shown in FIG. 7, a screw fastening end portion is formed at the end portion of the pad clings 4 and the screw fastening end portion of the pad clings 4 together with the screw fastening end portion of the bridge 3 is formed into a substantially L-ring shape. The spectacle lens 1 having the fastening holes 11 is inserted between the bridge 3 and the pad clings 4 while being inserted into the support piece 5, and while being inserted into the support piece 5, these are bolted. 6 and the nut 7 are screwed.

As in the first embodiment, in this lens fixed state, the support piece 5 is securely fixed to the spectacle lens 1 by the locking portion 51, and this reliable fixing is performed. The contact portion 52 of the support piece 5 contacts the side surface of the spectacle lens 1 while sandwiching the bridge 3 and the pad crimps 4 from the upper and lower sides. That is, not only the bridge 3 but also the pad clings 4 is supported by the abutting portion 52 of the support piece 5 from both upper and lower sides (the rotation direction side of the pad clings 4), and the bridge 3 and the pad clings 4 are stopped. It is prevented from rotating at the portion of the attachment hole 11.

Of course, also in this embodiment, the contact portion 52 of the support piece 5 allows the bridge 3 and the pad cringe 4 to be deformed in the front-rear direction. Therefore, unlike the conventional products, the contact state between the lens side surface and the support piece does not become insufficient due to the plastic deformation of the bridge 3 and the pad clings 4. Thus, by adopting the lens fixing mechanism of the second embodiment in the bridge 3, it is possible to provide two-point eyeglasses having no brazing portion.

Although the lens fastening mechanism for the rimless glasses according to the present invention has been described above with the first and second embodiments, the present invention is not limited to the above-mentioned embodiments. Various modifications are possible within the description of "Registration Claim".

For example, the support piece 5 for securely fixing the lens attachment can be modified into various shapes as shown in FIGS. 8 to 12. The locking portion 51 of the support piece 5 only needs to have a shape that can be screwed to the spectacle lens 1 with the bolt 6 and the nut 7, and for example, as shown in FIG. 9, a locking hole is formed in the locking portion 51. Alternatively, as shown in FIG. 11, the locking portion 51 may be formed by bending a wire rod. Various shapes can be selected in consideration of the ease of production or the design of the glasses.

On the other hand, the contact portion 52 of the support piece 5 only needs to have a shape capable of contacting the side surface of the spectacle lens 1 while sandwiching the bridge 3 and the end piece 2 from above and below, for example, as shown in FIGS. 8 and 10. The abutting portion 52 may have a shape extending from the locking portion 51 in a bifurcated manner. As shown in FIG. 10, if the distance between the two forks is large, it is possible to more reliably prevent the end piece 2 from rotating.

Further, as shown in FIG. 11, the abutting portion 52 may be formed by bending a wire rod, and as shown in FIG. The contact portion 52 may be formed by carrying it out in the opposite direction and bending it in the opposite direction by about 180 °. In the case of this modified example, the support piece 5 has a ring shape, but when the lens is fastened, the 180 ° bend of the end piece does not have to be inserted into the ring-shaped support piece 5. Since the part securely sandwiches the end piece from both upper and lower sides, it is possible to prevent the end piece from rotating at the screwed portion.

[0028]

[Effect of the present invention]

 As described above with reference to the embodiments, in the lens fixing mechanism for the rimless glasses according to the present invention, the support piece provided so that the end piece component or the bridge component does not rotate at the screwed portion is provided. Since the support piece is formed separately from the bridge part and is fixed to the spectacle lens, even if the end piece part or the bridge part is deformed, the contact state between the support piece and the side surface of the spectacle lens is not correct. It will not be enough, and the lens fixing part will not easily rattle.

Further, in the lens fastening mechanism of the present invention, the support piece is brought out from the screwed portion of the spectacle lens in either the front or rear direction of the lens and brought into contact with the side surface of the spectacle lens 1. Therefore, even if the lens contact portion of the support piece is formed long, the support piece does not impair the simplicity of the rimless spectacles. In other words, unlike the conventional support piece that was required to be as small as possible from the viewpoint of designability, the support piece of the present invention enables easy bending adjustment. Therefore, the spectacles assembling process such as the work for forming the lens fixing holes is remarkably easy, and the same support piece can be applied as it is to spectacle lenses having different shapes and thicknesses. It is possible to provide inexpensive rimless spectacles at low cost.

Further, in the lens fastening mechanism of the present invention, since it is not necessary to braze the support piece and the end piece component or the bridge component, the materials of the support piece and the end piece component are It is not necessary to select the material while considering the brazing property of each, and it is possible to select a free material for each. For example, if the support piece is made of synthetic resin material, various two-point type rimless according to various applications It becomes possible to provide eyeglasses.

[Brief description of drawings]

FIG. 1 is a schematic front view of two-point type rimless glasses configured by using a lens fastening mechanism according to a first embodiment of the present invention.

FIG. 2 is a partial plan view of the lens fastening mechanism of the first embodiment.

FIG. 3 is an exploded perspective view of the lens fastening mechanism of the first embodiment.

FIG. 4 is a partial plan view showing an example of assembly of the lens fastening mechanism of the first embodiment.

FIG. 5 is a partial plan view showing an example of assembly of the lens fastening mechanism of the first embodiment.

FIG. 6 is a partial plan view showing an example of assembly of the lens fastening mechanism of the first embodiment.

FIG. 7 is a partially enlarged perspective view of a lens fixing mechanism according to a second embodiment of the present invention.

FIG. 8 is a partial schematic perspective view showing a modified example of the support piece of the lens fastening mechanism of the present invention.

FIG. 9 is a partial schematic perspective view showing a modified example of the support piece of the lens fastening mechanism of the present invention.

FIG. 10 is a partial schematic perspective view showing a modified example of the support piece of the lens fastening mechanism of the present invention.

FIG. 11 is a partial schematic perspective view showing a modified example of the support piece of the lens fastening mechanism of the present invention.

FIG. 12 is a partial schematic perspective view showing a modified example of the support piece of the lens fastening mechanism of the present invention.

[Explanation of symbols]

 1 Eyeglass Lens 11 Fastening Hole 2 End Piece 3 Bridge 4 Pad Clings 5 Support Piece 51 Locking Part 52 Abutting Part 6 Bolt 7 Nut

Claims (5)

[Scope of utility model registration request] 1. A spectacle lens 1 having a fastening hole 11 formed near the periphery and a bridge 3 or an end piece 2 are supported by a support piece 5 in the fastening hole 11 while being screwed with a bolt 6 and a nut 7. A lens fastening mechanism for stopping, which includes a locking portion 51 to be screwed with a bolt 6 and a nut 7 in the fastening hole 11 together with the bridge 3 or the end piece 2, and either of the front and rear of the locking portion 51. A lens for rimless spectacles, characterized in that a support piece 5 is formed from an abutting portion 52 that is brought out in a direction to support the bridge 3 or the end piece 2 from above and below and at the same time abut on the side surface of the spectacle lens 1. Fastening mechanism. 2. A bolt 6 while supporting a spectacle lens 1 having a fastening hole 11 formed in the vicinity of its peripheral edge, a bridge 3 and a pad clings 4 with a support piece 5 in the fastening hole 11.
A lens fastening mechanism that is screwed with a nut 7 and a fastening hole 11 together with the bridge 3 and the pad clings 4.
At a locking portion 51 to be screwed with a bolt 6 and a nut 7, and is carried out from the locking portion 51 in either the front or rear direction to support the bridge 3 and the pad clings 4 from above and below, and at the same time, the spectacle lens. A lens fastening mechanism for rimless spectacles, characterized in that a support piece (5) is formed from a contact portion (52) to be in contact with the side surface of the lens. 3. The contact portion 52 of the support piece 5 is a locking portion.
The lens fastening mechanism for rimless spectacles according to claim 1 or 2, wherein the lens fastening mechanism is formed in a bifurcated shape extending from 51. 4. The rimless according to claim 1, wherein the support piece 5 is made of a material different from that of the bridge 3, the end piece 2, or the pad clings 4. Lens fastening mechanism for spectacles. 5. The lens fastening mechanism for rimless spectacles according to claim 1, wherein the support piece 5 is made of a synthetic resin material.