JP4073010B2 - Rimless glasses - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to rimless eyeglasses that stably support and fix a lens with a simple member. In particular, an object is to provide glasses that can be viewed with a wider field of view.
[0002]
[Prior art]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-174385 [Patent Document 2]
Japanese Patent Laid-Open No. 08-54582
The eyeglasses are a pair of left and right lenses, a body rim that holds the pair of lenses from the side of the lens and serves as the body part of the eyeglass frame, and a nose pad or temple for locking to the nose or ear of the spectacle wearer. And it is comprised by components, such as a locking hook (a temple end, an ear pad part). In glasses with a front frame (rim), the armor or bridge is directly attached to the rim by brazing or screwing. However, since rimless glasses have no rim, it is not possible to braze the armor or bridge to the rim. Therefore, a method is adopted in which a hole (through hole) or a hole (dent) is formed in the lens and attached using a screw, a pin, or the like. There are various forms of mounting methods. In particular, recently, a two-point frame structure has been widely adopted because stable mounting is possible.
[0004]
As a general structure of a two-point frame, two holes, a screw hole and a through hole, are formed in the vicinity of the outer periphery of the lens, a screw hole and a locking pin are provided in the frame, and the locking pin is inserted into the through hole of the lens. At the same time, the screw holes of the frame and the screw holes of the lens are aligned, the screws are passed through both screw holes, and the screws are fastened with nuts. Here, the frame refers to parts such as armor and bridge. FIG. 1 shows general rimless glasses. The bridge j3 is a component that connects the left and right lenses j1. Pat j4 is the part that contacts the nose to support the glasses. A support structure part connecting the pad and the bridge is a pad foot j401. A part having an opening / closing function for connecting the front and the temple is a hinge j201, and a claw provided to fix the lens is a lens fastening j202a (temple side) and j202b (bridge side). In order to stably fix the lens j1, a lens fastening screw or a lens fastening rivet is used. “Attachment method for attaching temples and bridges to eyeglass lenses” (Patent Document 1) describes a method for fastening temples and bridges by tightening nuts to screws (long screws) and then folding the screws. . FIG. 2 shows the positions of the holes formed in the lens j1, and FIG. 3 shows the state when the temple-side chin j5 is attached to the lens j1. The temple mounting holes j110a and b and the bridge mounting holes j111a and b are two pairs of holes, respectively, to prevent the temple and the bridge from rotating. As can be seen from FIG. 3, the tube j510 is attached to the screw j520 of the chi-j5, inserted into the lens hole j110, and the nut j6 is screwed into the screw with the bracket j12 interposed therebetween (a and b correspond to each). This is a part to be omitted and is omitted in the description). In this mounting method, a long screw is used, and the length of the screw is adjusted by folding the screw portion protruding from the nut after screwing the nut. 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. The method of mounting each component on the lens with two points (two holes) can prevent rotation and stably mount with a simple structure.
[0005]
Further, in “Structure of two-point frame in eyeglasses” (Patent Document 2), a screw hole (through hole) and a rotation-preventing pin hole (described as “concave portion” in the invention) are provided in the lens, and a through hole is provided in the base. And locking pin, threaded pin and groove in the armored part, threaded pin through the pedestal through hole and lens threaded hole, and cover the pedestal with the grooved part of the armored part. A structure is described in which the Yoroi is attached to the lens by overlapping the lens with the lens and finally screwing with a nut. Of course, a bridge is also included as an attachment target. In the above invention, rattling and rotation prevention between the armor and the pedestal are performed by covering the pedestal with a groove provided in the armored portion (also in the bridge).
[0006]
2. Description of the Related Art Conventionally, the weight of spectacles has been reduced in order to improve the wearing feeling of spectacles, and spectacle frames of various designs have been devised in order to improve the appearance and impression of the wearer. Eyeglasses using a two-point frame are popular because they are lightweight and can provide eyeglasses with little change in the impression of the wearer. However, the two-point frame tends to lack the strength of the glasses because the frame parts are screwed directly to the lens. In addition, since cracks are easily generated from the screw holes, it is necessary to prevent the lens from cracking by making a screw hole inside the lens edge more than a certain amount. Since the position of the screw hole is greatly inside from the edge of the lens, there is also a problem that the field of view of the wearer is largely blocked by the attachment part of the frame part.
[0007]
[Problems to be solved by the invention]
As seen in the prior art, the two-point frame structure such as “Attachment method for attaching temples and bridges to spectacle lenses” (Patent Document 1), “Structure of two-point frame in spectacles” (Patent Document 2), In order to stably fix the lens in the rimless spectacles, a screw hole (a temple mounting hole and a bridge mounting hole) is provided in the lens, and the armor or bridge is directly fixed to the screw hole formed in the lens by using a screw. Providing screw holes at appropriate positions in the lens requires advanced techniques and tends to increase errors. In addition, since a screw is fixed in the field of view, the field of view is narrowed when the eyeglasses are actually viewed at a close distance, and the size of the lens cannot be fully utilized. In particular, the lens fixing portion on the bridge side hinders the field of view. Further, since the armor or the bridge is fixed with screws, the strength is insufficient, and there are problems such as damage from the screw holes, loosening of the screws due to use, and lack of wearing stability.
[0008]
Therefore, an object of the present invention is to provide spectacles that can be seen in a wider field of view in rimless spectacles. To provide eyeglasses that are light and small in number of components, easy to assemble the frame, easy to attach and detach lenses, strong, and capable of mounting and adjusting various parts and having excellent wearing feeling. With the goal.
[0009]
[Means for Solving the Problems]
In order to solve the problems, the invention described in claim 1 is directed to rimless glasses using a metal wire. (1) A piece of metal in which the contact portion with the lens is shaped along the spherical surface of the lens. Temple-integrated upper front bar molded integrally from wire, (2) Temple-integrated lower front molded integrally from a single metal wire shaped like a spherical surface of the lens. (3) A temple-integrated lens mounting member that is fixed only on the side of the armor that is fixed to a lens made of a single metal wire that is fitted to a lens having a fitting hole at the mounting position of the armor; (4) A fixed portion that collectively fixes the three wire rods of the temple-integrated upper front bar, the temple-integrated lower front bar, and the temple-integrated lens mounting member; Is a rimless glasses and butterflies.
[0010]
According to a second aspect of the present invention, the lens mounting member is a fitting shaft having a shape that appears in a U-shape on the lens surface when fitting a fitting portion that fits into a fitting hole provided in the lens. 2. The rimless eyeglasses according to claim 1, wherein the lens and the lens mounting member are fixed by inserting the fitting fixing member between the fitting shafts after the fitting shaft is fitted into the fitting hole. It is.
[0011]
The invention described in claim 3 is characterized in that the fitting and fixing member is provided with a protrusion at a position coinciding with the lens fitting hole on the contact surface with the lens and fixed to the fitting hole of the lens. The rimless eyeglasses according to Item 1.
[0012]
In the present invention, the temple, the alloy connecting the temple and the lens, the upper part of the left and right lenses, and the bridge connecting the left and right lenses are integrally formed from a single metal wire. The temple and the temple And a lens with a fitting hole at the mounting position of the armor, and a temple-integrated lower front bar that is integrally molded from a single metal wire. The lens is fixed by using three wire rods of a temple-integrated lens mounting member made of a single metal wire rod to be fitted.
[0013]
The temple-integrated upper front bar, the temple-integrated lower front bar, and the temple-integrated lens mounting member can be formed by molding a single wire.
[0014]
The contact parts of the temple-integrated upper front bar and the temple-integrated lower front bar with the lens are shaped along the spherical surface of the lens, so the upper and lower front bars and the lens are stable without brazing. Can be fixed.
[0015]
The lens mounting member uses a U-shaped fitting shaft as the fitting part that fits into the fitting hole provided on the lens end side of the lens, and is fitted and fixed after the U-shaped fitting shaft is fitted into the fitting hole. The lens and the lens mounting member are fixed by sandwiching the U-shaped fitting shaft of the lens mounting member from the upper surface of the lens. Since the lens fixing member and the lens are fixed using the fitting fixing member in this manner, the lens is stably fixed. Further, in order to increase the stability of fixation, the fitting and fixing member may be provided with a protrusion at a position corresponding to the lens fitting hole on the contact surface with the lens upper surface, and fixed to the fitting hole of the lens. In this way, the lens mounting member and the lens are fixed only on the side of the armor. For this reason, it is not necessary to provide a fitting hole in the lens on the bridge side, so that the field of view becomes wider.
[0016]
The three wires, the temple-integrated upper front bar, the temple-integrated lower front bar, and the lens mounting member, can be gathered together by a heat-shrinkable tube or the like in the modern portion. Further, it can be molded and fixed with resin or the like. By creating the glasses using the above method, it is not necessary to braze at all, and the number of parts constituting the glasses is reduced, so that the glasses can be easily made.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. FIG. 4 shows a lens mounting member 2, a lens 1, and a fitting fixing member 3 of rimless glasses composed of a single metal wire integrated with the temple. A U-shaped fitting shaft 210 is provided on the lens mounting member 2. On the other hand, a fitting hole 110 is provided on the end of the lens 1. The U-shaped fitting shaft 210 and the fitting hole 110 are aligned, and the U-shaped fitting shaft is inserted into the fitting hole. Then, after the insertion, the lens and the lens mounting member are fixed by sandwiching the fitting fixing member 3 from the lens surface to the U-shaped fitting shaft 210 of the lens mounting member.
[0018]
FIG. 5 shows a state where the lens mounting member 2 is fixed to the lens 1 by the mounting fitting fixing member 3. As shown in FIG. 6, a protrusion 310 is provided at a position that coincides with the lens fitting hole 110 on the contact surface of the fitting fixing member 3 with the upper surface of the lens, and is fixed more stably to the lens fitting hole. It may be fixed.
[0019]
FIG. 7 is a front view when the present invention is completed. As shown in this figure, the left and right lenses are arranged on the upper and lower sides of the lens, a temple that connects the temple and the lens, an upper portion of the left and right lenses, and a bridge that connects the left and right lenses. Temple-integrated upper front bar 4 integrally formed from the temple, the temple, the alloy connecting the temple and the lens, the lower part of the left and right lenses, and the bridge connecting the left and right lenses are integrally formed from a single metal wire. It is supported by an integrated lower front bar 5. These temple-integrated upper front bar and temple-integrated lower front bar contact portions with the lens are shaped along the spherical surface of the lens, so the upper and lower front bars and the lens are stable without brazing. And can be fixed. In particular, when the temple-integrated upper front bar, the temple-integrated lower front bar, and the temple-integrated lens mounting member are formed by molding a single wire, the number of parts is reduced and the glasses are easily configured. be able to. By selecting an elastic material as the metal wire, it is possible to form glasses having a degree of freedom unlike the frame in which the lens is fixed by the rim. Therefore, the wear feeling is excellent and soft, and has a function of absorbing impact. As can be seen from this figure, since there is no extra member such as a fitting hole on the bridge side of the lens, the field of view is not hindered. Further, since only one hole on the lens side is provided on the lens, there is little risk of breakage. Problems such as lack of strength and lack of wearing stability due to loosening of screws are also improved because the screws are not fixed to the alloy or bridge.
[0020]
The pad is directly attached to the lens with an adhesive. In addition to the adhesive, there is a fixing method such as pressure bonding by heat treatment.
[0021]
FIG. 8 is a side view when the present invention is completed. As shown in this figure, the temple-integrated upper front bar 4, the temple-integrated lower front bar 5 and the lens mounting member 2 disposed above and below the lens are gathered together by a heat shrinkable tube or the like in the modern portion. FIG. 9 is a top view when the present invention is completed.
[0022]
【The invention's effect】
The glasses of the present invention
・ Because there is no need to make a screw hole in the lens, errors due to processing of the screw hole and insufficient strength due to fixing with the screw and screw hole are eliminated, and a wide field of view that makes full use of the size of the lens is eliminated. Can be obtained.
-By using an elastic material for the wire, a flexible form and an impact absorbing function can be provided, so that the wearing feeling is significantly improved compared to a frame using a conventional rim or a two-point frame.
-A simple structure that does not use screws or brazing has made it possible to reduce the weight. Since no screws are used, component loss due to loose screws is avoided. In addition, since the number of parts is small, it is easy to assemble and is advantageous in terms of cost.
・ Because it is a simple form that does not use eyeglass front frame, armor, hinge, screw, etc., there is no brazing part of eyeglass frame, even metal materials with poor brazing properties such as super elastic alloy, shape memory alloy etc. It can be used. In particular, when the temple-integrated upper front bar, the temple-integrated lower front bar, and the temple-integrated lens mounting member are molded by using a single wire, the number of parts is extremely small, so that the assembly is easy. Can be. In addition, a free temple shape is possible without being limited to the shape of the lens, and the lens can be easily replaced.
Etc. are obtained.
[Brief description of the drawings]
FIG. 1 is a front view of prior art rimless glasses.
FIG. 2 is a front view of a lens showing a position of a hole formed in the lens for fixing a bridge and a temple to the lens in the rimless glasses of the prior art.
FIG. 3 is a cross-sectional view showing a part of a lens when the lens is fixed with a chi in conventional rimless glasses.
FIG. 4 is a diagram illustrating a lens mounting member, a lens, and a fitting fixing member of the rimless eyeglasses of the present invention.
FIG. 5 is a diagram illustrating a state when the lens mounting member of the present invention is fixed to a lens with a fitting fitting fixing member.
FIG. 6 is a diagram illustrating an example of a fitting and fixing member according to the present invention.
FIG. 7 is a front view when the rimless glasses of the present invention are completed.
FIG. 8 is a side view when the rimless glasses of the present invention are completed.
FIG. 9 is a top view when the rimless glasses of the present invention are completed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lens 110 Fitting hole 2 Lens attachment member 210 U-shaped fitting shaft 3 Fitting fixing member 310 Projection 4 Temple-integrated upper front bar 5 Temple-integrated lower front bar jnnnn The symbols starting with j are used in the prior art (See text for details)

Claims (3)

In rimless glasses using metal wire,
(1) A temple-integrated upper front bar integrally formed from a single metal wire having a shape along the spherical surface of the lens at the contact portion with the lens;
(2) A temple-integrated lower front bar integrally formed from a single metal wire having a shape along the spherical surface of the lens at the contact portion with the lens;
(3) A temple-integrated lens mounting member that is fixed only to the armor side for fixing to a lens made of a single metal wire that is fitted to a lens having a fitting hole at the mounting position of the armor;
(4) A fixing portion that collectively fixes the three wire rods of the temple-integrated upper front bar, the temple-integrated lower front bar, and the temple-integrated lens mounting member,
Rimless eyeglasses characterized by comprising. The lens mounting member has a mounting portion that fits in a fitting hole provided in the lens as a fitting shaft that appears in a U-shape on the lens surface when fitted, and the fitting hole fits in the fitting hole. The rimless eyeglasses according to claim 1, wherein after the shaft is fitted, the lens and the lens mounting member are fixed by sandwiching the fitting fixing member between the fitting shaft. The rimless eyeglasses according to claim 1, wherein the fitting fixing member is provided with a protrusion at a position coinciding with the lens fitting hole on a contact surface with the lens, and fixed to the fitting hole of the lens.

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