JP2021026161A - Lens interval-adjustable nylol type spectacle and front frame - Google Patents

Abstract

To provide nylol type spectacles that retain small lenses matching the positions of individual's eyes by fitting high tension yarn such as a leveling string to a front frame.SOLUTION: A front frame 2 is formed by cutting a thin metal plate, upper rim parts 4, 4 are formed successively on both sides of a center coupling part 7, and inner rim parts 5, 5 are formed successively on both sides of the coupling part 7. Base parts 13, 13 are bent and extended downward. Holes 10, 11, and 12 are formed at one or a plurality of places of the upper rim part 4 and inner rim part 5, and leveling yarn 6 is inserted and fitted in a recessed groove formed at a lens outer periphery. The lens is retained at a predetermined position in contact with the upper rim part and inner rim part with tensile force acting on the high tension yarn.SELECTED DRAWING: Figure 1

Description

The present invention is a frame that is provided with a high-tensile thread such as nylon thread (water thread) and can hold a lens, and is configured so that the distance between the left and right lenses can be attached according to each individual's eyes. , And the front frame.

Nyroll frames are often used as one type of eyeglass frames. The nylol frame is a frame in which half of the lens is held by a high-tensile thread such as a nylon thread (water thread), and has a form as shown in FIG. 5, for example. The frame shown in the figure is just a basic form, and in reality it will be constructed with various designs, but the tips of water threads (b) are attached to both ends of the arc-shaped metal half rim (a). It is fixed and the lens (c) is held by the half rim (a) and the water thread (b).

Both half rims (a) and (a) are connected by a bridge (d), and the yoroi (e) and (e) are attached to the outside of the half rims (a) and (a). The vines (f) and (f) are attached to the yoroi (e) and (e) so that they can be folded via hinges (to) and (to). Since this nyroll frame holds the lens (c) with half rim (a) and water thread (b), it is lighter than the eyeglass frame with a ring-shaped full rim, especially the front part. Even if you wear glasses for a long time, you will not get tired. In addition, since the lower half of the lens (c) is a water thread (b), there is an advantage that the field of view is widened.

By the way, the lens (c) is restrained by the half rim (a) and the water thread (b), and for that purpose, a concave groove into which the water thread (b) fits is provided on the outer circumference of the lens (c) over the entire circumference. ing.
Although not limited to the Nyroll frame shown in the figure, once the shape of the arc-shaped half rim (a) is determined, the lens (c) that fits into the half rim (a) and is held by the water thread (b). The shape of the lens is inevitably fixed, and at the same time, the size of the lens (c) is also fixed.
The water thread (b) fits into the concave groove formed on the outer circumference of the lens, and a concave groove is also provided on the inner circumference of the half rim (a), and the lens (c) and the half rim (a) are made of water thread having a roughly gourd-shaped cross section. It is connected through.

As a frame in which the shape and size of the lens can be freely adjusted, there is a frame called rimless glasses having no rim. In this rimless eyeglass, both lenses are directly screwed through a bridge so as to be symmetrical, and Yoroi is directly screwed to the outside of the lens. By changing the size of the bridge, the distance between the two lenses can be changed, and the lens shape is also free.
However, by making a hole in the lens without holding the rim, inserting a screw into this hole and screwing it directly, the stress when opening the vine and the stress when the frame is twisted all work on the lens, so There is a risk of damage to the lens.

Examples of the spectacle frame constructed by using water threads include "Nyroll frame" according to JP-A-9-258141, "Nyroll frame" according to JP 2001-194631, and the spectacle frame having no rim. For example, various known "rimless glasses" according to JP-A-2002-244083 and "rimless glasses" according to JP-A-2006-58717.

By the way, in order to make the front part of the glasses lighter and more comfortable to wear, it is necessary to make the lens having a large weight ratio lighter. The most effective way to make the lens lighter is to make it smaller. However, simply reducing the size of the lens may cause the field of view to deviate from the lens, making it difficult to see, leaving another problem.
"Nyroll frame" according to JP-A-9-258141 "Nyroll frame" according to Japanese Patent Application Laid-Open No. 2001-194631 "Borderless glasses" according to Japanese Patent Application Laid-Open No. 2002-244083 "Borderless glasses" according to JP-A-2006-58717

As described above, various nyroll frames for holding the lens with water threads have been conventionally known, but the conventional nyroll frame has the above-mentioned problems.
The problem to be solved by the present invention is this problem, and by using a lens as small as possible, a nyroll type eyeglass that is light and comfortable to wear is provided.

The Nyroll type glasses of the present invention include a semicircular half rim and a high-tensile yarn such as a nylon thread (water thread), and the lens is held by the half rim and the high-tensile thread. That is, the basic structure is the same as that of the conventional Nyroll type glasses.
By the way, in the Nyroll type glasses of the present invention, the left and right lens sizes are made as small as possible, and therefore the distance between the two lenses is not constant, and the front frame is such that the lenses are arranged according to the position of each eye.

The front frame has a connecting portion, both upper rim portions, and both inner rim portions, the connecting portion is located in the central portion, and has upper rim portions and inner rim portions on both sides of the connecting portion. The front frame is made of a thin metal plate, and the connecting portion, both upper rim portions, and both inner rim portions are continuously formed.
The upper rim portion is formed with holes and grooves through which high-tensile threads such as water threads are inserted, and the inner rim portion is also provided with holes and grooves through which high-tensile threads are inserted.

A groove into which the high-tensile thread is fitted is provided along the outer periphery of the lens, and the high-tensile thread fitted in the outer peripheral groove of the lens is fixed to the hole or groove, and the lens is held by the front frame.
The inner rim portion extending from the connecting portion can change the position where the base portion of the inner rim portion bends in order to adjust the distance between the left and right lenses. That is, both inner rims bend and extend downward so that the lenses are arranged so as to match the positions of their eyes.

The nyroll type spectacles according to the present invention have a lens held by a combination of a front frame and a high-strength thread, and therefore have the general effects (lightness and good visibility) of conventional nyroll type spectacles. There is.
Then, in the present invention, the lenses are correctly arranged so that the distance between the two lenses matches the position of each eye. That is, the distance between the two lenses can be adjusted for each individual by appropriately determining the position where the base of the inner rim portion bends and extends downward.
Therefore, the size of the lens is minimized, and a light lens can be used.

By making the lens with a large weight ratio smaller, it is possible to construct very light eyeglasses, and the eyeglasses are comfortable to wear without getting tired even if they are worn for a long time.
Further, if the front frame is provided with both upper rim portions and both inner rim portions centering on the connecting portion, and is configured as a thin metal plate cut or cut into a predetermined shape, the inner rim portion is glasses. It can be easily bent at the retail store, and the distance between both lenses is set correctly according to each individual's eyes.

In the Nyroll type glasses according to the present invention, (a) represents a case where the lens spacing is small, (b) represents a case where the lens spacing is intermediate, and (c) represents a case where the lens spacing is large. A specific example showing a developed view of the front frame of the present invention. Enlarged view of the inner rim portion that extends continuously from the connecting portion. When water threads are inserted through multiple holes provided in the front frame. A specific example of conventional general Nyroll type glasses.

The appearance of the Nyroll type glasses according to the present invention is the same as that shown in FIG. 5, and the lens is held by the front frame and the water thread which is a high-tensile thread.
FIG. 1 is an example showing the Nyroll type glasses according to the present invention, and shows the front portion 1 in the front view. The front portion 1 has lenses 3 and 3 attached to the front frame 2, and is connected to both sides of the front frame 2 via joints so that vines (not shown) can be folded.
The front frame 2 is composed of one continuous thin metal wire, and the front frame 2 has a central connecting portion 7 and upper rim portions 4 and 4 on both sides thereof, and is bent downward from the connecting portion 7. Inner rim portions 5 and 5 extending to

The lens 3 is restrained by the upper rim portion 4 and the inner rim portion 5, and is held by the water thread 6. That is, the water thread 6 fits into the concave groove along the outer circumference of the lens 3, and the tip of the water thread 6 is inserted into the holes provided in the upper rim portion 4 and the inner rim portion 5 and does not come off from the holes. It is stopped like.
Here, tension is applied to the water thread 6, and the lens 3 abuts on the upper rim portion 4 and the inner rim portion 5 by this tension and is correctly positioned and restrained. Both lenses 3 and 3 are arranged at a predetermined distance with the central connecting portion 7 as the center. However, the inner surfaces of the upper rim portion 4 and the inner rim portion 5 are not provided with a concave groove into which the water thread 6 fits.

1A, 1B, and 1C are front views of the front portion 1 constituting the glasses of the present invention, but the distances between the left and right lenses 3 and 3 are different. That is, in the case of FIG. 1 (a), the inner peripheral distance Ma of both lenses 3 and 3 is 16 mm, and in the case of FIG. 1 (b), the inner peripheral distance Mb of both lenses 3 and 3 is 18 mm, FIG. 1 (c). In the case of), the inner peripheral distance Mc of both lenses 3 and 3 is set to 20 mm.
The front frame 2 used is common. The inner rim portions 5 and 5 extending from the connecting portion 7 bend and extend downward at different bending positions.

FIG. 2 shows a developed view of the front frame 2. The front frame 2 can be manufactured by cutting a thin metal plate (for example, a thin titanium plate) by wire cutting or the like. Of course, the manufacturing method of the front frame 2 is not particularly limited, but it is also possible to punch out with a die.
However, when punching with a die, a high-precision die is required, which is suitable when a large number of front frames of the same shape are required, but the die cost increases. There's a problem. Further, a fracture surface remains on the punched surface of the punched front frame 2, and therefore, a post-treatment for removing the fracture surface is required.
For example, the front frame 2 can be manufactured by wire cutting controlled to move according to the drawing by using a computer. By cutting the wire, the front frame 2 can cut the cut surface neatly with high accuracy.

Upper rim portions 4 and 4 extend on both sides of the connecting portion 7, and inner rim portions 5 and 5 extend along the upper rim portions 4 and 4 on both sides of the connecting portion 7. Further, the legs 8 and 8 extend from the connecting portion 7 in a curved manner, and the attachment portions 9 and 9 to which the nose pad is attached are formed at the tips of the legs 8 and 8. Both the legs 8 and 8 are along the upper rims 4 and 4 and the inner rims 5 and 5.
FIG. 2 shows the unfolded front frame 2, but the inner rims 5, 5 and the legs 8 and 8 when curved to attach the lenses 3 and 3 are separated from the upper rims 4 and 4. Extends downward.

Holes 10a, 10b, ... Are penetrated through the intermediate portions of the upper rim portions 4, 4. Further, through holes are also provided in the inner rim portions 5 and 5. That is, holes 11a and 11b are provided through the intermediate portions of the inner rim portions 5 and 5 as shown in the enlarged view in FIG. Further, holes 12a and 12b penetrate through the tips of the inner rim portions 5 and 5. However, the hole positions and the number of holes of the water thread provided in the front frame 2 shown in FIG. 2 are only specific examples and are not limited.

The base portion 13 of the inner rim portion 5 shown in FIG. 3 is connected to the connecting portion 7. Then, the base portion 13 is bent at an appropriate portion, the inner rim portion 5 extends downward, and becomes a portion where the inside of the lens 3 abuts.
When bent at the position (a), it becomes the front portion 1 shown in FIG. 1 (a). That is, the inner rim portions 5 and 5 are located on the center side of the front frame 2, and the distance between the lenses 3 and 3 becomes smaller.
When bent at the position (b), it becomes the front portion 1 shown in FIG. 1 (b).
When bent at the position (c), it becomes the front portion 1 shown in FIG. 1 (c). That is, both inner rim portions 5 and 5 are located away from the center of the front frame 2, and the distance between the lenses 3 and 3 becomes large.

As described above, the front frame 2 is composed of a thin and thin metal wire, and therefore, by changing the bending position of the base portion 13 of the inner rim portions 5 and 5 extending outward on both sides of the connecting portion 7, the lenses 3 and 3 are formed. It is possible to change the position of 3. Since the front frame 2 is formed by cutting or cutting a thin metal plate, the inner rim portions 5 and 5 extending from the connecting portion 7 can be easily bent.
The clerk can easily bend the base 13 of the inner rim portion 5 to set the distance between the lenses 3 and 3 at the optimum position according to the position of the eyes of the customer who visits the eyeglass store. By correctly determining the positions of both lenses 3 and 3, it becomes possible to minimize the size of the lenses 3 and 3, which means that the weight of the front portion 1 of the nyroll type glasses can be reduced. You can.

In the present invention, the same front frame 2 shown in FIG. 2 is used, but the inner rim portion 5 can change the distance from the center of the front frame 2 by changing the bending position of the base portion 13. Therefore, as shown in FIGS. 1A to 1C, the positions of both lenses 3 and 3 can be changed.
By the way, a water thread is fitted in the concave groove along the outer circumference of the lens 3, and the water thread has holes 10a and 10b penetrating the upper rim portion 4 and holes 11a and 11b penetrating the inner rim portion 5. 12a and 12b are inserted and tightened, and the lens 3 is restrained and fixed to the upper rim portion 4 and the inner rim portion 5.

FIG. 4 is a specific example showing a mode in which the water thread 6 inserts each hole in order to fix the lens 3 to the front frame 2.
The front frame 2 shown in FIG. 2 is provided with two holes 10a and 10b penetrating the upper rim portion 4, holes 11a and 11b in the middle portion of the inner rim portion 5, and holes 12a and 12b in the tip portion. Is provided through.
However, in the present invention, the number of these holes and the position of the holes are not limited. In order to fix the lens 3 to the front frame 2, any hole may be used as long as the water thread 6 can be fitted into the concave groove along the outer circumference of the lens and the water thread 6 can be locked and fixed to the front frame 2. Therefore, it may be a notch groove that can be locked instead of a through hole.

In the case of the embodiment shown in FIG. 4, the lens 3 can be restrained and fixed by one continuous water thread 6. One end of the water thread 6 is inserted into two holes 12a and 12b provided at the tip of the inner rim portion 5. That is, a ball 14 having a size that does not allow the hole 12a to be inserted is formed at the tip of the water thread 6, and the ball 14 is located inside the inner rim portion 5. The water thread 6 through which the two holes 12a and 12b are inserted extends from the inner surface of the inner rim portion 5, and the hole 10b provided in the upper rim portion 4 is inserted from the inside to the outside, and the water thread 6 passes through the hole 10a. It is inserted from the outside to the inside.

The further extending water thread 6 extends outward through a hole 11a provided through the middle of the inner rim portion 5, and the water thread 6 protruding outward is wound around the notch formed in the inner rim portion 5 and the hole 11b It is inserted from the inside of the rim and extends to the outside. A ball 15 is provided at the other end of the water thread 6 through which the hole 11b is inserted, and the ball 15 has a size that does not allow the hole 11b to be inserted.
The length of the water thread 6 is the length required for the lens 3 to be restrained and fixed to the upper rim portion 4 and the inner rim portion 5 of the front frame 2.
Therefore, if the lens 3 fits into the water thread 6 provided with the balls 14 and 15 at both ends, a predetermined tension acts on the water thread 6 and the lens 3 comes into contact with the upper rim portion 4 and the inner rim portion 5. It is fixed and the lens 3 is held by the front frame 2 and the water thread 6.

The balls 14 and 15 can be made by melting the tip of the water thread 6. However, when the distance between the holes 11a and 11b is small, and when the distance between the holes 12a and 12b is small, even if the balls 14 and 16 are not formed at the tips of the water threads, the holes 11a, 11b, 12a and 12b can be used. The water thread 6 can be stopped without coming off.
It is also possible to tie a knot instead of a ball to prevent it from coming out of the hole.

As shown in FIG. 4, the inner surfaces of the upper rim portion 4 and the inner rim portion 5 are not provided with a concave groove into which the water thread 6 fits, and the water thread 6 is fitted in the outer peripheral groove of the lens 3 and is fitted in the upper rim portion. The lens 3 is restrained without falling off by being fixed to the 4 and the inner rim portion 5.
Since the front frame 2 is manufactured by cutting a thin metal plate, it is not possible to form a concave groove into which the water thread 6 fits unlike the conventional Nyroll type glasses, but the Nyroll type glasses of the present invention have. , The water thread 6 is fitted into the outer peripheral groove of the lens to restrain the lens 3, and the water thread 6 is fixed to a hole or groove provided in the front frame 2 so that the lens 3 does not come off.

1 Front part 2 Front frame 3 Lens 4 Upper rim part 5 Inner rim part 6 Water thread 7 Connecting part 8 Legs 9 Mounting part
10 holes
11 holes
12 holes
13 base
14 balls
15 balls

Claims (5)

In Nyroll type glasses that hold a lens by attaching a high-tensile thread such as water thread to the front frame, the front frame is constructed by cutting or cutting a thin metal plate, and upper rims are provided on both sides of the central connecting portion. It is continuously formed, and inner rims are continuously formed on both sides of the connecting portion, and the base is bent and extended downward, and holes are formed in one or more of the upper rim and the inner rim. A notch groove is provided to insert a high-tensile thread such as a water thread, and the lens is fitted into a concave groove along the outer periphery of the lens, and the lens is held in a predetermined position by the tension acting on the high-tensile thread. Nyroll type glasses. The nyroll type eyeglasses according to claim 1, wherein the bent portion where the inner rim portion is bent and extends downward is defined by aligning the lens with the position of each eye wearing the glasses. The nyroll type eyeglasses according to claim 1 or 2, wherein a ball or knot having a size that does not come out of the through hole is formed at the tip of the high-tensile yarn. In the front frame constituting Nyroll type glasses in which high-tensile threads such as water threads are attached to hold the lens, the front frame is formed by cutting or cutting a thin metal plate, and upper rims are formed on both sides of the central connecting portion. The portions are continuously formed, and the inner rim portions are continuously formed on both sides of the connecting portion, and the base portion is bent and extended downward to one or more of the upper rim portion and the inner rim portion. Is a front frame characterized by forming holes and notch grooves through which high-strength threads such as water threads can be inserted. The front frame according to claim 4, wherein the legs for attaching the nose pad are continuously extended from the connecting portion.

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