JPH08201731A - Rimless spectacles adjustable in lens supporting - Google Patents

Abstract

PURPOSE: To enable a user to change the angles of lenses, to adjust the relative positions of the lenses with the eyeballs forward and backward and to deal with the deviation in the directions of the visual axes, such as internal squints and external squints by changing the positions of adjusting nuts to be screwed to respective adjustable screw parts of endpiece members and a bridge member. CONSTITUTION: The adjustable screw parts 21 penetrating the bridge setting holes of the lenses 4 and inserting parts 23 pressed to the inner side edges of the lenses 4 are integrally curvilinearly formed. The adjustable screw parts 11 penetrating the endpiece setting holes of the right and left lenses 4 and clamping parts 13 pressed to the outer side edges of the lenses 4 are integrally curvilinearly formed at the endpiece members 1 on both right and left sides of the front parts. The lenses 4 are held across the adjustable screw parts 21 of the bridge member 2 penetrating the bridge setting holes penetrating the bridge setting holes of the right and left members 4 and the adjustable screw parts 11 of the endpiece members penetrating the endpiece setting holes and are tightened and screwed movably forward and backward by means of first adjusting nuts 5a and second adjusting nuts 5b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is an improvement of rimless spectacles,
More specifically, the present invention relates to rimless spectacles that can easily respond to changes in lens thickness, can adjust the optical axis of the lens, etc., and have an adjustable lens support that hardly causes lens displacement after attachment. .

[0002]

2. Description of the Related Art The positions and angles of human right and left eyes are not perfectly symmetrical, and the visual axes, to which the pupils of each person tend, are not perfectly parallel to the left and right. Alternatively, it tends to have an external strabismus. From these things, when new eyeglasses are made, it is necessary to match the visual axes of the left and right naked eyes with the optical axes of the correction lenses of the eyeglasses, or else it may cause eye strain. is there.

Further, a normal lens for correcting spectacles refracts a parallel light beam to convert it into, for example, a diffused light or a convergent light to exert a visual acuity correcting effect. The size of the image transferred to the retina also changes. Therefore, in the case of a person with anisometropia, using lenses with different degrees on the left and right of the eyeglasses according to the difference in the visual acuity of the left and right eyes, the size of the image transferred to the left and right retinas due to the difference in refractive power It will be unequal, and you will be forced to get nervous fatigue. Moreover, recently popular rimless spectacles have screwed directly around the edge of the lens, so if you use lenses with different degrees on the left and right, due to the difference in the thickness of the left and right lens ends, the mounting angle of the lens on the left and right There is also a drawback that the position and the position tend to be slightly deviated.

At the same time, since general rimless spectacles are constructed by omitting a rim having a certain strength from the periphery of the lens, it is rarely pointed out that the structural strength of the entire spectacles is insufficient. Absent. For example, the front part of rimless spectacles is the most important and heavy part of spectacles, but through holes are made in the lens and the wisdom or bridge, and screws are inserted and fastened with nuts to connect the two. Therefore, when the screw and the nut are loosened, the lens is apt to wobble, which hinders the use of the spectacles.

In particular, the wisdom and bridge of rimless spectacles are often made thin and small for design reasons, and it is not possible to secure a sufficient depth for grasping a screw in the through hole, and the fastening is loose. Then, the central axis of the screw will move so as to stagger with respect to the central axis of the through hole. For this,
The wobbling of the front part of the glasses becomes large. Further, if the screws are fixed to the bridge and the bridge by welding or the like, the above wobble can be prevented, but the screws cannot be exchanged and changed, and the manufacturing cost becomes high.

Further, in the rim frame spectacles, after the spectacles are assembled, the wisdom can be bent by hand, and the position of the lens and the angle of the temple can be finely adjusted according to the person who actually wears the spectacles. However, there is also a problem in that it is difficult to make fine adjustments by hand, since the through-hole portion of the lens is damaged when force is applied.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of conventional eyeglasses.
Eyeglasses that can change the angle of the lens according to the inclination of the visual axis of the individual, and in the case of anisometropia, even if different degrees are used for the left and right lenses A technical problem is to provide eyeglasses that do not cause a difference.

Another technical problem of the present invention is to cope with the difference in the thickness of the left and right lenses which is inevitably caused by the adjustment of the lens cutout position accompanying the PD (pupil distannce) adjustment of the left and right lenses. To realize adjustable rimless spectacles capable of supporting the lens at a required position and angle according to the circumstances of each person.

If desired, in the present invention, it is also possible to prevent "wobble" between the screw for fixing the lens and the wisdom or bridge in the rimless spectacles, and to enable adjustment after assembly. Belong to a technical problem.

[0010]

Means adopted by the present inventor for solving the above technical problems will be described below with reference to the accompanying drawings.

That is, according to the present invention, the bridge member 2 supports the pair of lenses 4 and 4 symmetrically to form the front portion F, and the intelligence members 1.1 are arranged at both left and right ends of the front portion F. , The temple pivot 15 of this wisdom member 1.1
Assuming that the conventionally known rimless spectacles in which the temples 8 and 8 are pivotally supported by 15 are technically premised, the left and right lenses 4 and 4 each have a bridge fixing hole 41 and 41 near the inner end and an outer end. Adjusting screw portion 21 penetrating through the bridge fixing holes 41 of the lens 4 on both sides of the bridge member 2 while penetrating and forming the fixing holes 42 near the portion
21 and a sandwiching portion 23 that abuts on the inner edge of the lens 4
・ 23 and 23 are integrally bent, and the left and right side members of the front part F are connected to the right and left side members 1 and 1 of the right and left lenses 4 and 4 respectively.
The adjusting screw portion 11.11 penetrating the 42.42 and the sandwiching portion 13.13 abutting on the outer edge of the lens 4.
The adjusting screw portions 21 and 21 of the bridge member 2 penetrating the bridge fastening holes 41 of the left and right lenses 4 and the wiping member 1 penetrating the wiping fastening holes 42 and 42 while being integrally bent. By adopting the technical means in which the lens is sandwiched between the adjusting screw portions 11 and 11 of the first adjusting screw portion 11 and the first adjusting nut 5a and the second adjusting nut 5b are tightened and screwed so as to be able to move forward and backward, The feature is that rimless spectacles with adjustable lens support that can satisfy all of the above technical problems have been realized.

By adopting this means, it is possible to finely adjust the front-rear position and the angle of the lens at the front F by moving the position of the adjusting nut on the screw shaft of the adjusting screw portion of the adjusting member and the bridge member. It will be possible.

In addition to the above-mentioned means, a spring metal wire is used for the bridge member 2 and the intelligent member 1.1, and the adjusting screw portion of these members 2.1.1 is used.
It is advisable to use a means of bending between 21.21.11.11 and the sandwiching portions 23.23.13.13 by bending it in a U-shape to give elasticity. When this means is additionally used, the wisdom member and the bridge member can be easily manufactured and the structural strength can be easily secured.
Appropriate elasticity can be given between the sandwiching portion and the adjusting screw portion, and the lens can be easily sandwiched and fixed by the elastic restoring force. Therefore, the holding state of the lens also becomes stable. In addition, the so-called U-shaped bending means that the straight portions at both ends are bent at approximately 180 °, and includes, for example, a "U" shape and an M-shape.

Further, in addition to the above-mentioned means, it is said that between the sandwiching portion 13 of the wisdom member 1.1 and the temple pivotally supporting portion 15 ・ 15 is bent in a U shape to form an adjusting portion 14 ・ 14. Means can also be used in combination. By adding this means, even after the lens is attached to the spectacles, it is easy to concentrate the deforming force on the adjusting part by holding the sandwiching part and the temple pivotal supporting part, without causing unnecessary deformation on other parts of the wisdom member. , You can adjust the position and angle of the lens, the angle of the temple, etc. Also, inside the respective fastening holes 41, 41, 42, 42 of the lens 4, 4,
While inserting the cylindrical cushioning material 6 made of synthetic resin, the adjusting screw portion 11 of the connecting member 1 and the bridge member 2
It is also possible to add a means of inserting 11.21.21 into the tube of the tubular cushioning material 6. By adding this means, it is possible to prevent damage to each fixing hole of the lens and, if it is assumed, Even if the screws and nuts are loosely fastened, frictional force acts between the cushioning material, the lens, and the adjusting screw portion, so that “wobble” can be almost prevented.
In addition, the strap material 3/3 is attached to the lens outer edge contact portion of each member.
It is also possible to increase the contact area with the lens by adding a means to attach the lens to help fix the lens.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the embodiments shown in the accompanying drawings.

A nickel alloy type metal wire having required elasticity is prepared, cut into a predetermined length to obtain a base material A for manufacturing a wisdom member, and then the base material A is swaged,
A small diameter portion A ₁ and a large diameter portion A ₂ are formed (see FIG. 5). After press working on the large diameter part A ₂ of this processed wire, the small diameter part A ₁
On the other hand, at two locations, bend it in the same direction by approximately 90 ° to make a U-shape (see Fig. 6). Furthermore, among the wire rod parts extending from the U-shaped bend, for the part on the opposite side of the pressed large diameter part A ₂ ,
Bend in two directions in the opposite direction to make it a little more acute than 90 °, and bend to the opposite side of the acute bend at a point between the two acute bends, and the plan shape is as shown in FIG. Bend it into a "self" shape. After this bending process, from the end of the small-diameter portion A ₁ of the metal wire to the vicinity of the base of the bending, a male screw is engraved to form the adjusting screw portion 11, and the pressed large-diameter portion A ₂
A two-piece piece of a hinge is formed by performing a predetermined cutting process on the end portion of the strap member 3 and a strap member 3 having a fitting groove 31 as shown in FIG. 9 with respect to the wire member portion facing the adjusting screw portion 11. Then, the intelligence member 1 is completed. As shown in FIG. 9, the strap material 3 used in the present embodiment has a channel-shaped fitting groove 31 formed by bending the central portion of a small metal plate piece, and both of the fitting grooves 31. To the side, the strap main bodies 32, 32 for contacting the lens edge portion are arranged in a shape that spreads like a wing. The intelligent member having the above-described structure has an adjusting screw portion 11,
A sandwiching portion 13 in which the strap material 3 is installed at a position facing it is provided. Further, a temple pivot support portion 15 composed of two hinged pieces is provided at the end of the large-diameter portion A ₂ of this wisdom member. Further, the wisdom member 1 has a U-shaped bent portion 12 having a flat M-shape capable of elastically expanding and contracting the distance between both ends, and a U-shaped portion between the sandwiching portion 13 and the temple pivot portion 15. Equipped with a bent adjusting part 14, the whole shape is roughly "self". Two such wisdom members 1 having a symmetrical shape are prepared.

Further, for the same kind of metal wire rod, after cutting the wire member 1 for a longer time than during processing of the wisdom member 1 to obtain the bridge base material B, it is moved in the same direction at two positions separated by a predetermined distance from both ends. Perform 90 ° bending (see Fig. 8). After this,
In addition to giving a predetermined curvature to the middle part of the two bends, bend each of the bent and brought out ends in a direction opposite to the brought out bend at a slightly more acute angle than 90 ° at two points. , Is bent again in the middle of the acute-angled bending point to form a flat M-shaped U-shaped bent portion 22/22 similar to the above-mentioned wisdom member. Further, male screws are engraved from both ends of the two U-shaped bent portions 22 and 22 to the front of the base of the bending to form the adjust screw portions 21 and 21, and face the adjust screw portions 21 and 21. The same strap material 3, 3 as the above-mentioned smart member is fitted to the wire portion, and the sandwiching portion 23.
When 23 is formed, the bridge member 2 shown in FIG. 4 is completed.

Next, the left and right lenses 4 and 4 are prepared, and the bridge fastening holes 41 and 41 and the wisdom fastening holes 42 are provided in the vicinity of the respective ends.
・ Open 42. A synthetic resin tubular cushioning material 6 integrally provided with a flange-shaped synthetic resin washer at one end is inserted into each of the fastening holes 41, 41, 42, 42 from the lens front side. Furthermore,
After the first adjusting nut 5a is screwed into the adjusting screw parts 11, 11, 21, 21 of the wisdom member 1.1 and the bridge member 2 to a predetermined position, a washer 7 made of synthetic resin is respectively fitted therein. .
Then, the adjusting screw portions 11, 11, 21, 21 in which the adjusting nut 5a and the washer 7 are fitted are inserted into the respective fastening holes of the lenses 4, 4 into the tubular holes of the tubular cushioning member 6. Insert and screw the second adjusting nuts 5b into the adjusting screw parts 11, 11, 21, and 21, respectively, and then adjust the first adjusting nuts 5a and 5b.
The lens 4 is fastened and held by and (see FIGS. 3 and 4). After that, the strap material 3 at the position facing the adjusting screw portion 11, 11, 21, 21 is appropriately slid on the sandwiching portion 13, 13, 23, 23 so that the center of the strap material 3 is the lens side edge center. When the adjusting nuts 5a and 5b and the strap material 3 are fixed to each other with an adhesive,
Is configured. The intelligence members 1.1 at both ends of this spectacle front part
On the other hand, when the temples 8 and 8 are pivotally attached to the two-piece frame portions of the temple pivot portions 15 and 15, the glasses are completed (see FIGS. 1 and 2). In addition, at the position where each fastening hole of the lens is opened, the distance from each fastening hole of the lens to the side edge is
It is designed to be longer than the distance between the adjusting screw portion and the sandwiching portion of the bridge member. In this way, the lens is sandwiched between the adjusting screw part and the strap material of the sandwiching part while pushing out the flat M-shaped U-shaped bent part, and the lens and the wisdom member and the bridge member are in strong contact with each other. As a result, the fixing force of the lens increases.

In such glasses, since the male screw portion is integrated with the wisdom member or the bridge member, even if the fastening between the screw and the nut is loose, the wisdom member or the bridge member and the male screw will be Therefore, "wobble" does not occur. Moreover, in the rimless spectacles of the present embodiment, the lens is strongly sandwiched between the adjusting screw portion including the male screw and the strap material of the sandwiching portion, and the tubular cushioning material is provided inside the fixing hole of the lens. Since it has been inserted, it exhibits ideal fixing characteristics. Particularly, if the outer diameter and the inner diameter of the tubular cushioning material are appropriately selected and the tubular cushioning material is inserted while being expanded in the radial direction with the male screw of the adjusting screw portion, the fixing force becomes large. Further, in the rimless eyeglasses of the present embodiment, the sandwiching portion of the wisdom member and the temple pivot support portion are deformed by hand adjustment to change the distance between the lens and the temple, and the forward tilt angle of the lens is adjusted. It is also possible to change the angle or change the angle with respect to the front part when the temple is expanded. Therefore, the rimless spectacles of this embodiment can also be flexibly fine-tuned according to the person who wears the spectacles 1 even in the portion of the intelligence member 1.

[0020]

As described above with reference to the embodiments, in the rimless spectacles of the present invention, the lens is adjusted by changing the position of the adjusting nut screwed to each adjustable screw portion of the wisdom member and the bridge member. The angle of can be changed, and the relative position of the lens with respect to the eyeball can be moved back and forth. Therefore, it is possible to cope with the deviation of the direction of the visual axis such as the inner strabismus and the outer strabismus (see FIG. 10). Further, even if the left and right lenses have different refractive powers due to anisometropia, the sizes of the images visually recognized on the left and right can be matched by changing the distance between the lens and the eyeball on the left and right. Further, even if the thickness of the side surface of the lens changes, it can be dealt with by changing the nut position and the interval.

In the rimless glasses of the present invention,
By adopting a method in which an adjusting screw part is provided corresponding to the fixing hole of the lens and both sides of the lens are fixed by nuts that can move forward and backward, the position and angle of the lens with respect to the eyeball can be adjusted separately for left and right. For this reason, it becomes possible to freely fine-tune the lens position and angle according to the state of the visual axis of each person, and even if there is a difference in the degree of the left and right lenses due to left and right anisometropia, It is now possible to match the size of the reflected images. As a result, it is possible to provide eyeglasses that do not burden the wearer.

Further, in the present invention, by adopting a design in which an adjusting screw portion including a male screw is integrally formed with a connecting member or a bridge member formed by bending a wire into a predetermined shape, It is also possible to realize stable rimless spectacles with less "wobble" even if the fastening is loose.

In the rimless glasses of the present invention,
By providing the adjusting member with a U-shaped bend, the force can be concentrated and applied only on the adjusting portion even after the glasses are assembled, and the glasses can be easily adjusted to match the face. Furthermore, if a cylindrical cushioning material is inserted into the inside of the fixing hole of the lens, the fixation of the lens becomes more stable.

Further, since the holding member and the bridge member of the rimless spectacles of the present invention are provided with the sandwiching portion which is opposed to the adjusting screw portion and abuts against the outer edge of the lens, the fixation of the lens is also stabilized. Further, a strap material can be attached to the portion to increase the contact area.

As described above, the rimless spectacles of the present invention can eliminate the drawbacks of the conventional rimless spectacles and can realize a new practical merit that was not expected in the past. It is truly great that it contributes to the resolution of dissatisfaction.

[Brief description of drawings]

FIG. 1 is a front view of rimless glasses configured as an embodiment of the present invention.

FIG. 2 is a plan view of the rimless glasses of this embodiment.

FIG. 3 is a partially enlarged disassembled and assembled plan view showing a disassembled connection structure of the wisdom member and the lens in the present embodiment.

FIG. 4 is a partially enlarged exploded plan view of the connecting structure of the bridge member and the lens in this embodiment in an exploded manner.

FIG. 5 is a plan view of a base material of an intelligent member to be used for the rimless glasses of this embodiment.

6 is a partially enlarged plan view of the base material of the wisdom member of FIG. 5 which is formed by bending.

FIG. 7 is a partially enlarged plan view in which the base material processed product of the wisdom member of FIG. 6 is further bent.

FIG. 8 is a plan view showing a process of processing a base material of a bridge member to be used in the rimless glasses of this embodiment.

FIG. 9 is a perspective view of a strap material used in the rimless glasses of this embodiment.

FIG. 10 is an explanatory diagram showing visual axis / optical axis correction by changing the lens tilt in the rimless glasses of the present invention.

[Explanation of symbols]

 1 Smart member 11 Adjust screw part 12 U-shaped bent part 13 Clamping part 14 Adjusting part 15 Temple pivotal support part 2 Bridge member 21 Adjust screw part 22 U-shaped bent part 23 Clamping part 3 Strap material 31 Fitting groove 32 Strap body 4 Lens 41 Bridge fixing hole 42 Wiring fixing hole 5a Adjustment nut 5b Adjustment nut 6 Cylindrical cushioning material 7 Washer

Claims (5)

[Claims] 1. A pair of lenses 4 by a bridge member 2
4 are supported symmetrically to form a front portion F, and the wisdom members 1.1 are arranged at both left and right ends of the front portion F, and temples 8 and 15 are attached to the temple pivot portions 15 and 15 of the wisdom member 1.1. 8 is a pair of spectacles pivotally supporting each of the left and right lenses 4 and 4 with a bridge fixing hole 41
41, and a fixing hole 42, 42 is formed in the vicinity of the outer end of the bridge member 2 on both sides of the lens 4.
The adjusting screw portions 21 and 21 penetrating through the bridge fixing holes 41 and 41 of the No. 4 and the sandwiching portions 23 and 23 that come into contact with the inner edge of the lens 4 and 4 are integrally bent and formed. On the right and left lateral members of F, the adjusting screw portions 11 and 11 penetrating through the right and left lenses 4 and 4 of the right and left lenses 4 and 4 are sandwiched between the adjusting screw portions 11 and 11. The fitting portions 13 and 13 are integrally bent and formed, while the adjusting screw portions 21 and 21 of the bridge member 2 penetrating the bridge fastening holes 41 and 41 of the left and right lenses 4 and 41 and the wisdom fastening holes are formed.
42. The adjusting screw portion 11.11 of the wiping member 1.1 penetrating the lens 42 is sandwiched with the lens in the middle, and the first adjusting nut 5a and the adjusting nut 5b are screwed tightly so that the lens can be moved forward and backward. Rimless eyeglasses with adjustable lens support characterized by setting the position. 2. The bridge member 2 and the wisdom member 1.1 are made of a spring metal wire, and the adjusting screw portion 21, 21, 11, 11 and the sandwiching portion 23 in each member 2.1.
The rimless spectacles with adjustable lens support according to claim 1, characterized in that a continuous portion with 23.13.13 is bent in a U shape to impart elasticity. 3. An adjusting portion 14.14 which is bent in a U shape between the sandwiching portion 13.13 of the wisdom member 1.1 and the temple pivot portion 15.15.
The rimless spectacles with adjustable lens support according to claim 1 or 2, wherein the rimless spectacles are adjustable. 4. The fixing holes 41, 41, 42, 42 of the lenses 4.4.
The cylindrical cushioning material 6/6/6/6 made of synthetic resin is inserted into the inside of the housing, and the adjusting screw portions 11/11/21/21 of the bridge member 2 are connected to the cushioning material 6/6.・ 6
.6, which is inserted in the cylinder. 6.
The rimless spectacles with adjustable lens support described in any one of 3 to 3. 5. A sandwiching portion between the intelligent member 1.1 and the bridge member 2.
Strap body 32 on both sides of the mating groove 31 for 11/11/21/21
Rimless eyeglasses with adjustable lens support according to any one of claims 1 to 4, characterized in that a strap member 3 having 32 is attached.