JPH0736123U - Lens stop mechanism for rimless glasses - Google Patents

Abstract

(57) [Abstract] [Purpose] There is no need to make the lens hole position accuracy so strict, and after adjusting the horizontal and vertical lens axes, a hook that fixes the lens ensures reliable and easy adjustment. It is an object of the invention to provide a stop mechanism for eyeglasses. [Structure] A fixed plate pressed according to the inclination of the rear surface of the spectacle lens, spectacle arms extending from the fixed plate to the lens side surface and bent, and from both sides of the spectacle arm near the lens side surface. The fixing hook is bent so as to be pressed against the side surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lens stopping mechanism for rimless glasses, and more particularly to a lens stopping mechanism for rimless glasses that can be securely fixed after temporarily adjusting a lens axis.

[0002]

[Prior art and its problems]

 Conventional spectacles include a rim frame front part that surrounds the left and right lens edges, a spectacle arm temple that can be pivotally folded to the side edges of the left and right rim frames, and a front cell. Many of these spectacles are fashionable like earrings worn on the ears, and in particular, rimless spectacles emphasize the lighter weight and natural facial features in addition to the original functions of the spectacles. Is increasing.

However, the rimless spectacles have a smaller number of parts than the spectacles with the frame because the rimless spectacles do not have a frame, and therefore, a stop mechanism for securely fixing the spectacle arm and the lens is required. Generally, the lens is fixed to eyeglasses by adjusting the vertical and horizontal axes of the lens in the proper direction required for power correction, and then firmly fixing it to the mounting frame without rattling. It

For example, FIG. 3 (1) shows a typical lens fixing mechanism in conventional rimless glasses. When the lens 31 is viewed from the front, it shows a state in which the lens is fixed to a metal fitting (metal fitting for the base of the arm) 32. The lens 31 has a screw (not shown) inserted in a screw insertion hole 33. (3) A lens fixing blade 34, which is attached to the metal fitting 32 and winds a part of the peripheral edge of the lens, is fixed by three points of contact points A and B contacting the side surface of the lens. Therefore, as shown in FIG. 3 (2), depending on the position of the screw insertion hole formed in the lens, a gap is formed between the lens fixing blade 34 and the lens 31, and the lens 31 is loose. On the contrary, there is a case where the lens fixing blade 34 does not reach the contact portion on the side surface of the lens because of too tight. In addition, in order to adjust the vertical and horizontal axes of the lens in Fig. 3 (1) to the proper direction required for power correction, the shape of the blade in contact with the contact A and the contact B is distorted (Fig. 3 ( 2)) Depending on the material and shape, it may be difficult to bend the rimless eyeglasses, making it difficult to adjust.

FIG. 4A shows an example of a fixing method in which the vertical and horizontal axes of the lens are adjusted according to the positions of the lens insertion holes 33 formed at two points of the lens without using the lens fixing blade. If the distance between the two lens insertion holes 33 is proper, there is no rattling, but since the axial direction depends on the position of the lens insertion hole 33, it is necessary to process the drilling position with high accuracy. . As described above, in the conventional method of fixing rimless eyeglasses, the required axial direction of the lens is affected by the setting accuracy of the drilling position, and it is extremely difficult to adjust the lens after drilling.

[0006]

[Means and Actions for Solving the Problems]

 The present invention has been made in view of the above, and it is not necessary to make the lens hole position accuracy very strict, and after adjusting the horizontal and vertical lens axes, the hook for fixing the lens can be surely and easily adjusted. In order to be able to do so, the fixed plate pressed according to the inclination of the rear surface of the spectacle lens, the metal fittings connected from the fixed plate to the spectacle arm extended to the lens side surface and the sleeves of the metal fittings There is a fixed hook bent so as to press the lens side surface from the vicinity of the lens side surface. This allows the spectacle user to make fine adjustments while wearing the lens, and after that, the lens can be securely and easily fixed.

[0007]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail.

The rimless spectacle lens stopping mechanism according to the present invention will be apparent from the following description, but the description overlapping with the above-mentioned drawings will be omitted.

Rimless spectacles do not include a metal or plastic rim frame that surrounds the periphery of commonly used lenses, and both left and right lenses processed into a predetermined spherical surface according to the front and back focal powers, and both It consists of a bridge that connects the lenses, and temples and metal fittings that extend from one end or the aspherical surface of the lenses to the ears and are attached to each ear. The feature of the present invention lies in how to attach both the bridge and the metal fitting.

FIGS. 1 and 2 show an embodiment of the present invention. For example, FIG. 1 shows a state before a fixed hook of a metal fitting is bent into a lens, while FIG. 2 shows a fixed hook. It shows a state where the lens is fixed by bending.

When the lens 11 is fixed by the metal fitting 12, FIG. 1 (1) is a front view of the spectacle lens, and FIG. 1 (2) is a view (partial sectional view) viewed from above. . For example, the lens 11 and the metal fitting are fixed by sandwiching the lens 11 that is curved to a predetermined curvature according to the focus power of the person who uses the ophthalmoscope and the fixing plate in the direction opposite to the face (front side in the figure). For this purpose, a screw insertion hole 13 that penetrates in the vicinity of one end of each lens, a lens fixing screw 14 that is inserted into this hole 13, a screw lock nut (for example, a hexagon nut) 15, a front and rear surface of the lens 11 and a nut 15 are provided. And a resin washer 16 that is elastically pressed into the gap. The metal fitting 12 is a plate-shaped fixing plate 17 that extends along the lens spherical surface so as to be in close contact with the rear surface of the lens 11, and a fixing hook that projects from the lens side surface 18 and is bifurcated into both sleeves of the metal fitting 12. It is composed of 19.

With such a configuration, the fixing hook portion 19 is simply attached by the screw 14 in FIG. 1 (2). At this stage, the fixing hook 19 is not in contact with the lens side surface 18 and is slightly raised with respect to the fixing plate 17 (about 45 °). The hole 13 to be drilled in the lens 11 is set at a position where the lens side surface 18 is approximately at the base of the fixing hook 19, and is fixed with the screw 14. Perform this work on the nose and ear sides of the lens, on both the left and right sides, and at all drilling positions, and mount all parts and lenses.

FIG. 2 is a view for explaining hook adjustment when the fixed hook 19 in FIG. 1 is bent to the lens side surface 18. In Fig. 1, both the fixed hooks 19 are bent with a tool etc. after being temporarily fixed by screwing and screwing together, but some deviations from the vertical axis and the horizontal axis are shown in Fig. 2 (1). Adjust as shown by the rotation directions of A and B. After this fine adjustment is completed, the fixing nut 15 is tightened to determine the optimum position of the lens and metal fitting. Next, the fixing hook 19 is adjusted in the directions C and D in the figure and pressed against the lens side surface 18 to be fixed.

The above is the procedure for mounting the component using the hook. The major differences from the conventional fixing method are: The lens drilling position does not need to be as precise as the conventional type. 2. The hook that fixes the lens side surface is bent and fixed after mounting the screw, so rattling of the lens due to mistakes in the drilling position does not occur easily.

3. Since it is not fixed by the surface like the conventional blade but by two points by hooks, it is possible to easily adjust the lens axis by adjusting the bending of the upper and lower hooks.

As described above, the fixing hook of the present invention makes it easy to fix the lens of the rimless glasses and adjust the lens axis after drilling, and solves the problems of the conventional fixing method.

[0017]

[Effect of device]

 As described above, according to the present invention, the fixed plate pressed according to the inclination of the rear surface of the spectacle lens, and the metal fitting that extends from the fixed plate to the side surface of the lens and is joined to the spectacle arm bent. Since there is a fixed hook on both sleeves of the metal fitting, which is bent so as to press the lens side surface from the vicinity of the lens side surface, it is not necessary to make the lens hole position accuracy so precise, After adjusting the lens axis with, you can fix the lens securely. Therefore, it is possible for the eyeglass user to make fine adjustments while actually wearing them, and after that, it is easy and the lens can be securely fixed.

[Brief description of drawings]

FIG. 1 is an explanatory view illustrating a lens fixing mechanism before being fixed according to the present invention.

FIG. 2 is an explanatory view illustrating a lens fixing mechanism after being fixed according to the present invention.

FIG. 3 is an explanatory diagram illustrating a conventional lens stop mechanism.

FIG. 4 is an explanatory diagram illustrating a conventional lens stop mechanism.

[Explanation of symbols]

 11 rimless lens 12 metal fitting 13 screw insertion hole 14 screw 15 fixing nut 16 resin washer 17 fixing plate 18 lens side surface 19 fixing hook

Claims (1)

[Scope of utility model registration request] 1. A fixed plate which is pressed according to the inclination of the rear surface of the spectacle lens, and a metal fitting which extends from the fixed plate to the side surface of the lens and is joined to a bent spectacle arm.
A lens locking mechanism for rimless spectacles, comprising: fixed hooks on both sleeves of the metal fitting, which are bent so as to press the lens side surface from the vicinity of the lens side surface.