JP2003066378A - Rimless spectacles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide rimless spectacles with which the adjustment of the distance between lenses can be performed by adjustment of only the lens segments without changing a temple width. SOLUTION: The rimless spectacles are composed of respective parts; temples, lens holding bars coupled by hinges to the temples, a bridge and lenses, and are constituted by connecting these parts by coupling members through the through-holes for fixing disposed at the lenses. The spacing between the lenses can be changed without changing the temple width by changing the through-hole positions for fixing of the lenses.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to rimless spectacles capable of changing the distance between left and right lenses without changing the distance between left and right temples.

[0002]

2. Description of the Related Art Borderless glasses are advantageous in that they are light and have a wide field of view. FIG. 1 shows an example of rimless glasses using a brow bar. The brow bar 2 is a lens fixing member that is placed along the upper part of the lens 1, and is a part from Ji (Ji) to Ji (Ji), which are both ends of the front connected to the temple (only one of the glasses is shown in the figure. (Shown). Therefore, the blow bar 2 is usually constructed integrally with the bridge 3. The bridge 3 is a part that connects the left and right lenses 1, and if the bridge is thin as shown in the figure, it is provided with a brace bar 301 that is a part that reinforces the bridge. The pad 4 is a part that contacts the nose for supporting the glasses. The supporting structural component connecting the pad and the bridge or the brow bar is the pad foot 401.
The hinge 201 is the part that has the opening and closing function that connects the front and temples, and the claws that are provided to fix the lens are the lens stops 202a (temple side) and 202b (bridge side).
Is.

FIG. 2 shows rimless glasses that do not use blow bars. The structure is the same as the rimless glasses using brow bars, but there is no brow bar. Lens stop 20
Since the form in which the lenses 2a and 202b hold the lens 1 with a mere claw is not stable, a lens fixing screw or a lens fixing rivet is used for fixing the lens. Several patents have been filed for this part because it is important for making the eyeglasses a sturdy and stable structure.

In "Attachment Method for Attaching Temple and Bridge to Glasses Lens" (Japanese Patent Laid-Open No. 11-174385), a method of fastening a nut to a screw (long screw) and then fixing the temple and the bridge by breaking the screw Is stated. FIG. 3 shows the positions of the holes formed in the lens 1, and FIG. 4 shows the temple 5 attached to the lens 1. The temple mounting holes 110a and 110b and the bridge mounting holes 111a and 111b are each two holes to prevent the temple and the bridge from rotating. As can be seen from FIG. 4, the tube 510 is attached to the screw 520 of the chi 5 and inserted into the hole 110 of the lens, and the nut 6 is screwed into the screw while sandwiching the bracket 12 (a and b correspond to each). It is a part to be done and is omitted in the description). In this mounting method, a long screw is used, and the screw portion protruding from the nut is adjusted by screwing the nut and then breaking the screw. The bracket is sandwiched between the nut and the lens in order to prevent the nut from directly hitting the lens and damaging the lens.

FIG. 5 shows "a lens fixing structure for rimless glasses".
It shows a lens fixing structure of (JP-A-9-218380). In this lens fastening method, the lens is tried on without making a hole in the lens 1. For that purpose
15a (part of Yoroi 9 <Yoroichi> in the figure) and gripping piece 15b
The end of the lens is pinched by, and the lens is fixed by tightening the contact 14 and the screw 10 attached to it with the nut 6. A rubber piece 11 is sandwiched between the sandwiching pieces 15a and 15b and the lens 1 to prevent the lens from slipping (slipping). Yoroi 9 and Temple 7 are connected by hinge 701, and can be opened and closed at an angle of about 90 degrees.

[0006]

In mounting the lens and each component in the rimless spectacles, it has been an important issue how to fix the lens stably without damaging the lens as seen in the prior art. Many inventions and inventions have been applied for. These proposals do not mention how to adjust the distance between both lenses. The distance between the lenses can be adjusted by the length of the bridge, but the length between both temples also changes. As described above, a method for adjusting the distance between the lenses only with the lens portion is not described.

[0007] Therefore, the problem to be solved by the present invention is
In order to solve the above problems, it is an object to propose a mechanism capable of adjusting the distance between lenses by adjusting only the lens portion without changing the temple width. The present invention also takes into consideration a lens fixing method that does not damage the lens without using extra members (rubber pieces, brackets, etc., which have been seen in the prior art) as much as possible.

[0008]

The invention described in claim 1 of the present invention comprises a temple, a lens holding bar joined to the temple by a hinge, a bridge connecting left and right lenses, and each component of the lens. In the rimless glasses capable of changing the lens interval without changing the temple width, characterized in that the lens arranged at a desired lens interval position, the lens holding bar and the bridge are fastened by a connecting member through a through hole. is there.

The invention described in claim 2 comprises a temple, a lens holding bar joined to the temple by a hinge, a bridge connecting the left and right lenses, and each component of the lens. In rimless glasses configured by fastening the bridge with a connecting member through a through hole, a through hole is formed by sandwiching the lens arranged at a desired lens interval position with a part of the lens holding bar and a part of the bridge. The rimless glasses are capable of changing the lens interval without changing the temple width, which is characterized in that they are fastened and coupled by a connecting member.

The spectacles of the present invention have a shape in which a lens is sandwiched by devising a blow bar and a bridge. Since the blow bar is a part from the tip to the tip along the upper part of the lens, the expression of the blow bar is not accurate in the present invention.Therefore, the term "lens holding bar" is used here as a specialized connecting member of the tip. I'll call it. Specifically, it is as follows.

In rimless spectacles formed of a temple, a lens holding bar, a bridge, and main components of a lens and formed by connecting the four members, the temple and the lens holding bar are connected by a hinge to form a lens holding bar. The method of connecting lenses to rimless glasses has a structure in which the lenses are sandwiched between bridges and the lenses are fixed with screws and nuts to assemble the glasses. To put it simply, it is a method of fixing the lens so that it is sandwiched between the lens holding bar and the bridge.

When the lens is held between the lens holding bar and the bridge and the lens is fixed with the screw and the nut, the positions of the holes for inserting the screws of the lens are changed to adjust the left and right lens intervals without changing the left and right temple intervals. .

The bridge is applied to the front surface of the lens, and the lens holding bar is applied to the back surface of the lens, and fixed with screws and nuts. At this time, the screws are integrally formed with the bridge, and two screws are attached to the left and right. When sandwiching the lenses, holes corresponding to the screws are made in each lens. At this time, the distance between the lenses can be adjusted depending on the position where the holes are made. Even in that case, the distance between both temples does not change.
The details will be described below.

The selection of materials is important for eyeglasses in order to make the parts fit to the face and having good touch and durability. Therefore, in the present invention, gum metal is used for the temple and the lens holding bar, and gum metal or titanium is used for the bridge. All of these materials are anti-allergic materials, so they are skin-friendly parts. Also, due to its high elasticity, it fits to the face and the glasses can be stably fixed to the face.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described with reference to the drawings. FIG. 6 is a top view and a front view of the rimless glasses of the present invention. The lens 1 is sandwiched between the bridge 3 and the lens holding bar 8 and fixed with screws and nuts 6. The lens holding bar and the end on the lens side are provided with screw holes (the position of the nut 6 and not shown), and the temple side has a hinge 701. This hinge is connected to the temple 7 to open and close the temple. The other end of the temple 7 is an ear hook (temple end), and a modern 702 is attached to soften the contact with the ear. Pat 4 is a bridge
Fix it with the screw stop 402 at the center of 3.

FIG. 7 is a view showing the positions of holes (screw holes) formed in the lens. The distance between the lenses is determined by the positions where the holes 111a and 111b are formed. FIG. 8 is a side view of the screws 302a and 302b set in the bridge 3. Since the distance between the holes 111 formed in the lens is 5 mm,
The distance between the screws 302 is also 5 mm. The screw 302 is inserted into the hole 111 and tightened with a nut (a and b at the end of the symbol indicate the correspondence between the hole and the screw).

FIG. 9 is a side view showing the temple as a center. Temple 7 bends inward (bridge direction) at hinge 701. A modern 702 is attached to the temple end so that the temple material does not directly touch the ears. As the temple material, a silicone resin or the like, which has a high anti-slip effect and a soft hit effect, is used.

[0018]

[Embodiment] It will be concretely shown that the distance between the lenses changes depending on the holes formed in the lenses. In the following, the distance from the hinge to the hinge (glass width) is L, the line (center line) passing through the center of the lens (where the center of the pupil comes) is 1, and a hole close to 1 (111a in FIG. 7). ), The distance from the center point to l is p, 2
The distance between the center points of the two holes (111a and 111b in FIG. 7) is q, and the distance between the lenses (lens width) is r. As in FIG. 6, L = 135.0, m = 50.0 (horizontal size of lens), n
= 28.0 (vertical size of lens), and q = 5.
Set to 0 (unit is millimeter).

In the present invention, the position of the hole in the lens (p
Value of), without changing the distance L from hinge to hinge,
The distance r between the bridges can be varied. 10 to 13 show specific examples thereof with actual numerical values. Below is the comparison table. Figure pr ======= === 10 1.1 16.0 11 2.1 18.0 12 3.1 20.0 13 4.1 22.0 === === ====

Every time p is increased by 1, r is increased by 2 because holes are formed at equal intervals on the left and right sides. Specifically, as shown in FIG. 14, when the hole 111a of the left lens 1a is formed on the right side of the center line l, the hole 111b of the right lens 1b is formed on the left side of the center line l. . That is, when the hole 111a of the left lens is set at a position increased from p by Δp, the distance x between the lenses can be calculated as x = r + Δp + Δp = r + 2Δp. The two items on the right side of the above formula are the holes 111a in the left lens 1a.
Is a value resulting from a Δp shift to the left, and the third item is a value resulting from a Δp shift to the right of the hole 111b of the right lens 1b.

On the other hand, L is constant regardless of the value of p
This is because L is determined by the screw position of the bridge and the screw hole position of the lens holding bar. That is, Δp means that only the lens is displaced. In other words, it is possible to determine an appropriate lens position at the position where the lens hole is opened without changing L.

[0022]

In order to bring the lens to an appropriate position of both eyes without changing the temple width, it has been necessary to carry out trial and error while changing the bridge and the lens.
On the other hand, in the present invention, an appropriate lens position (lens width) can be determined by the position of a hole (screw hole) formed in the lens for holding the lens. Therefore, since a small number of parts can be used, a cost-effective condition can be obtained.

Since the front side and the back side of the lens are clamped and fixed by the bridge and the lens holding bar, stable lens holding is realized. Moreover, since the bridge and the lens holding bar are used for holding the lens, the assembly is easy, which is also a feature of the present invention. Since the shape of the lens holding bar where the nut is tightened (the portion that comes into contact with the lens) can be machined on a flat surface, there is no need for a rubber piece or bracket sandwiched between the nut and the lens so as not to damage the lens.

By using gum metal or titanium as the material, the strength of the parts is guaranteed. The metal is not only resistant to rust but also an anti-allergic material, so that anyone can use it with peace of mind.

[Brief description of drawings]

FIG. 1 is a front view of rimless glasses using a conventional blow bar.

FIG. 2 is a front view of conventional rimless glasses.

FIG. 3 is a front view of a lens showing holes formed in the lens for fixing a bridge and a temple to the lens in the conventional rimless glasses.

FIG. 4 is a cross-sectional view showing a part of the lens when the lens is fastened to the lens in the conventional rimless glasses.

FIG. 5 is a cross-sectional view showing a part of the lens and the chi when the lens is fastened by sandwiching the end of the lens by the chi in the rimless glasses of the related art.

6A and 6B are a top view and a front view of rimless glasses for explaining a method of sandwiching and fixing a lens with a bridge and a lens holding bar in the rimless glasses of the present invention.

FIG. 7 is a front view of a lens showing holes for fixing the rimless glasses of the present invention.

FIG. 8 is a cross-sectional view of a bridge showing a screw attached to the bridge, which is passed through a hole formed in a lens for fixing the rimless glasses of the present invention.

FIG. 9 is a side view of the rimless glasses of the present invention as seen from the temple side in a completed assembled state.

FIG. 10 is a front view showing the relationship between p and r in concrete values in the rimless glasses of the present invention.

FIG. 11 is a front view showing the relationship between p and r in concrete values in the rimless glasses of the present invention.

FIG. 12 is a front view showing the relationship between p and r in concrete values in the rimless glasses of the present invention.

FIG. 13 is a front view showing the relationship between p and r in concrete values in the rimless glasses of the present invention.

FIG. 14 is a front view of the left and right lenses for explaining how the value of r changes depending on the value of p in the rimless glasses of the present invention.

[Explanation of symbols]

1 lens 1a left lens 1b right lens 110 temple holes 110a, b temple holes. a is right, b is left 111 Bridge hole 111a, b Bridge hole. a is right, b is left 2 blow bar 201 hinge 202a temple side lens stop 202b bridge side lens stop 3 bridge 301 brace bar 302 screw. 302a, b corresponding to 110a, b
Also used. 4 Pat 401 Pat Feet 402 Screwing 5 Chi (Satoshi) 510 Tube. 510 corresponding to 110a and 110b
Used for both a and b. 520 long screw. 520a corresponding to 110a, b,
Also used with b. 6 nuts. Used for both 6a and b according to the screw holes. 7 Temple 701 Hinge 702 Modern 8 Lens holding bar 9 Thread 10 Screw 11 Rubber piece 12a, b Bracket 14 per 15a, b Holding piece

Claims (2)

[Claims] 1. A lens holding bar comprising a temple, a lens holding bar joined to a temple with a hinge, a bridge connecting left and right lenses, parts of the lens, etc., and arranged at desired lens intervals. And rimless glasses capable of changing the lens interval without changing the temple width, characterized in that the bridge is fastened by a connecting member through a through hole. 2. A temple, a lens holding bar joined to the temple by a hinge, a bridge connecting left and right lenses, each component of the lens, and the like, and the lens, the lens holding bar, and the bridge are connected through a through hole. In the rimless glasses configured by being fastened and coupled with each other, a part of the lens holding bar and a part of the bridge sandwich the lens arranged at a desired lens interval position, and are fastened with a connecting member through a through hole. Rimless glasses that can be combined with each other to change the lens spacing without changing the temple width.