WO2004003632A1

WO2004003632A1 - Rimless spectacles part

Info

Publication number: WO2004003632A1
Application number: PCT/JP2002/006635
Authority: WO
Inventors: Seiji Kanou; Hiromi Noji
Original assignee: Paris Miki Inc.; Fukui Megane Industry Co., Ltd.
Priority date: 2002-07-01
Filing date: 2002-07-01
Publication date: 2004-01-08
Also published as: AU2002313317A1; AU2002313317A8

Abstract

The invention relates to a spectacles part, such as a wraparound endpiece or bridge having a construction that allows it to be directly mounted on a lens of rimless spectacles. Particularly, in a rimless spectacles that, in order to develop a spectacles part mountable on a lens without using screws or pins and having a rugged construction, has its bridge and wraparound endpiece made of metal wire material and adapted to be directly mounted on the lens, a rimless spectacle part characterized in that the bridge and wraparound endpiece are provided with a lens holding section comprising a spring hoop formed by rounding the metal wire and a fitting shaft adapted to fit in a hole formed in the lens so as to hold the lens between itself and the spring hoop and characterized in that the metal wire is of hollow construction, that the fitting shaft end is of crimpable construction in which it can be crimped by pressure deformation, or of crimpable construction in which the fitting shaft end is internally formed with a screw groove so that crimping is effected by pressure deformation in that it is screwed into the screw groove.

Description

Description Rimless eyeglass parts Technical field

The present invention relates to spectacle parts such as alloys and bridges having a structure that can be directly attached to lenses of rimless spectacles. Background art

The spectacles include a pair of left and right lenses, a main body rim that holds the pair of lenses from the side of the lens and serves as a main body of the spectacle frame, and a nose pad and a temple for locking the nose and ears of the spectacle wearer. It is composed of parts such as locking rods (temple end, earpiece). On the other hand, rimless glasses without a lens frame (rim) are popular because they are lightweight and have a wide field of view.

Since rimless glasses do not have a rim, it is not possible to attach the Yolo Bridge to the rim. Therefore, make a hole directly in the lens and use a screw pin (in this case, generally use a lip). A method of attaching a bridge to a lens has been adopted. However, a method that does not use screws and pins has been devised because it is easy to mount and lightweight. For example, in “Three-point support lens clip-type rimless spectacles” (Mitsubishi 3007846), a bridge fastening hole is provided near the inner edge of the lens, and the metal bridge can make line contact with the penetrating part and the edge of the lens. The document describes a structure in which an edge contact portion of the wire is provided, the penetrating portion is fitted into the bridge fixing hole, and the prism is fixed to the lens so that the lens is sandwiched between the two edge contact portions. This structure can also be applied to brackets (ji, yoro).

“Glasses” (WO 94/02876) describes a method of attaching bridges, metal alloys, pats, and the like directly to a lens with elastic holding pieces. Although some variations are described in the shape of the holding piece, basically the holding piece is U-shaped, and one of the holding pieces (one of the U-shaped vertical bar, the first piece) Insert into the hole in the lens and engage the other (U-shaped other vertical bar, second piece) with the edge of the lens Thus, the holding piece is fixed to the lens such that the first piece and the second piece sandwich the lens.

In the three-point support lens clip-type rimless spectacles (Mitsubishi 3007846) and the spectacles (WO 94/02876), which we saw in the prior art, a metal Yolo Bridge was attached to the lens using the elastic force of metal. And fixing (attaching) the spectacle parts to the lens with the lens interposed therebetween. In each case, the point is that parts can be mounted on the lens without using screws. Furthermore, “Eyeglasses” (WO 94/02876) also describes a method for stabilizing a lens by providing jagged irregularities on a holding piece and providing grooves or protrusions on the lens corresponding to the irregularities. These simple measures have been made because simple U-shaped holding pieces do not have enough elasticity to provide stability when the parts are fixed to the lens.

The above-mentioned method is used to attach eyeglass parts such as European bridge to the lens without using screw pins, etc., but when attaching external parts with a simple structure, just using the metal's own natural power Stable fixing is difficult. For this reason, the method of complicating the shape of the holding portion of the component or processing the shape of the portion where the lens contacts the holding piece in various ways is adopted.

An object of the present invention is to provide a spectacle component such as a yoro bridge having a simple structure, and which can be easily and stably mounted. In particular, the present invention aims to develop eyeglass parts having a strong structure that can be attached to a lens without using a screw or a pin because rimless eyeglasses using a single metal member are included in the field of view. The purpose is. Disclosure of the invention

In the present invention, in order to achieve the above object, the elastic force is increased by changing the shape of the wire-like member used for the European bridge. One of the methods is to make the part in contact with the outer periphery of the lens into a ring shape. In order to increase the strength of the member itself, 釙 Use a metal pipe. Another advantage of using pipe members is that they are easier to swage. More specifically, the parts have the following shapes.

A rim that attaches metal-made wire ridges and metal alloys directly to the lens In a pair of eyeglasses, a spectacle lens is provided with a bearing hole, a notch of a spring ring is provided on the outer periphery of the lens, and a fitting shaft and a panel wheel to be fitted with the notch of the spring ring are provided at the distal ends of the wires serving as bridges and metal alloys. To mount the above parts on the lens, the fitting shaft is inserted into the bearing hole, and one end of the panel wheel is fitted into the panel wheel receiving notch. As a result, the lens is held between the fitting shaft of the component and the panel wheel, so that the component is stably fixed to the lens. However, in this state, when a force is applied in the direction of the mating axis, the part easily separates from the lens, so the tip of the mating shaft that slightly protrudes from the bearing hole is crushed and crimped to fit the lens. Make sure that the shaft does not come off.

On the other hand, in order to reduce the weight of eyeglasses, it is necessary to reduce the number of parts or make the parts themselves slimmer. Thinning means making the part itself thinner, but the thinner the part, the less the strength of the part. Therefore, it is only necessary to use high-strength materials for components, but it is not possible to change popular materials such as gold to other materials. Therefore, in order to reduce the weight while securing the strength, the members are made into a pipe shape. The use of pipe-shaped parts also makes the caulking cheerful. Make a notch in the area to be caulked for easier caulking. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is an explanatory diagram when a bridge using the panel wheel of the present invention is attached to a lens (a cross-sectional view of a bridge and a lens viewed from above).

FIG. 2 is a cross-sectional view when a bridge using the spring ring of the present invention is attached to a lens (a bridge and a lens viewed from above).

FIG. 3 is an explanatory view when a YOROI using the panel wheel of the present invention is attached to a lens (a cross-sectional view as viewed from above).

FIG. 4 is a cross-sectional view when a YOROI using the spring ring of the present invention is attached to a lens (the YOROI and the lens as viewed from above).

FIG. 5 is an explanatory view of a bearing hole of a lens and a cutout of a panel wheel receiving portion (a cross-sectional view of a panel wheel of a lens and a component as viewed from the front).

FIG. 6 is a perspective view for explaining the pipe-shaped part of the present invention. FIG. 7 is a perspective view of the pipe-shaped component of the present invention when the tip of the fitting shaft is swaged. FIG. 8 is an explanatory view (perspective view) of the pipe-shaped component of the present invention when the fitting shaft tip is caulked with a screw.

FIG. 9 is a perspective view of rimless spectacles assembled using the components having a spring ring (bridge and roy) of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment of the present invention will be described with reference to the drawings. Figure 1 shows the bridge and lens. Bridge 2 is provided with fitting shaft 210 and panel wheel 220. On the other hand, the lens 1 is provided with a bearing hole 110 and a spring receiving notch 120. Align the spring ring with one end of the fitting shaft in the direction of the arrow, and insert the fitting shaft into the bearing ¾J. Figure 2 shows the bridge attached to the lens. When the tip 211 of the fitting shaft is swaged, the mounting of the bridge is completed. In the figure, the inside and the certain direction indicate the face side when wearing glasses, and the outside and the opposite direction indicate the face.

As shown in FIG. 3, similarly, in the case of the metal alloy, the metal fitting 3 is provided with a fitting shaft 310 and a spring wheel 320, and the lens 1 is provided with a bearing hole 110 and a panel wheel receiving notch 120. Insert the fitting shaft into the bearing hole while aligning the spring ring with the panel wheel receiving notch in the direction of the arrow, and swage the tip 311 of the fitting shaft to complete the mounting (Fig. 4). The end opposite to the fitting axis of the holoy has a hinge mechanism (for example, a hinge), which is connected to the temple (omitted in the figure).

Spring rings are basically circular, but need not be circular. Rather, the portion corresponding to the notch of the lens is preferably shaped along the notch groove (usually a straight line). Both Yoroi and the ridge are made of a single wire-like metal, so the spring ring is spiral. Also, the bearing holes and panel wheel notches cut out in the lens are machined into the outer shape of the parts. In particular, the notch is a groove to prevent the spring ring from shifting, but if excessive force from the parts is applied, it may cause the lens to crack, so as shown in Fig. 5, the spring ring 220/320 Make a semicircular depression slightly shallower than the radius.

In order to reduce the weight of components without reducing strength, pipes will be used for components. As an example, it is possible to process metal parts with pipe outer diameter 1.1 thigh and inner diameter 0.6 mm Noh. Also, if a notch is made at the tip of the fitting shaft, the caulking will be smooth. Although the number of cuts is not particularly specified, (a) in FIG. 6 shows an example in which two cuts are made, and (b) shows an example in which four cuts are made. In (a), the cuts are indicated by oblique lines 212a and 212b (an example of a bridge 2). However, in (b), the oblique lines are omitted because the oblique lines overlap and are difficult to see. As shown in FIG. 7, when pressure is applied to the distal end portion 211 of the fitting shaft, the entrance of the distal end portion of the fitting shaft is opened, and the fitting shaft 210 is fixed to the lens 1.

When caulking, the fitting shaft is fixed to the lens so that the tip of the fitting shaft is slightly wider than the diameter of the bearing hole of the lens. Therefore, when using a soft metal such as gold (for example, 8K) as a part, the inside diameter of the pipe is pressed with a rod slightly larger than the inside diameter to open the pipe entrance and fix the fitting shaft to the lens. It is also possible to do this. For example, as shown in FIG. 8, if the screw 9 is inserted inside the tip 211 of the fitting shaft and the screw is turned, the entrance is widened and the fitting shaft is fixed to the lens. Of course, in this case as well, if a cut is made, the entrance can be easily expanded. And after swaging, you can remove the screws. When the screw is removed, a metal piece to close the hole can be fitted.

FIG. 9 is a completed view when the bridge 2 and the metal alloy 3 are attached to the lens 1 by the above method. The pad is not attached in the figure, but the pad is attached to the bridge. The pad is attached by attaching one end of the pad leg (the connection part between the pad and the metal) to the bridge. It is also possible to attach the pad directly to the lens. In that case, the same method as for the bridge can be used. However, notching a large number of holes or notches in the lens is not always desirable in terms of lens strength and field of view. Industrial applicability

The present invention provides a simple spectacle structure for finishing rimless spectacles using a single metal material, and parts therefor. The structure is simple and luxurious, especially when gold, which is popular with customers, is used.

By using a simple structure that does not use screws, weight reduction has become possible. The feature of the present invention lies in that the use of a pipe-shaped wire as a part achieves weight reduction while maintaining strength. In addition, the use of pipe-shaped wire makes caulking easier. Since no screws are used, component loss due to loose screws is avoided. Also, because of the small number of parts, it is easy to assemble and has a cost-effective part configuration.

The greatest feature of the present invention is that the portion for holding the lens is a panel wheel. The use of the spring wheels has increased the force with which the part sandwiches the lens, and strengthened the prevention of loosening of the part. Another thing is that the spring ring disperses the force applied to the parts and lens by the panel wheel, so even if an unexpected situation occurs and the glasses are strongly applied, the parts or lens will be damaged. Danger is reduced. This point is also a feature of the present invention due to the spring ring structure.

Claims

Claims In rimless spectacles in which a ridge and a metal wire are directly attached to a lens, the bridge and the metal wire are opened to the lens so as to clamp the lens between a panel wheel formed by rolling the wire material and the spring wheel. A rimless spectacle part characterized by having a lens holding part comprising a fitting shaft fitted into the hole. 2. The rimless eyeglass component according to claim 1, wherein the metal wire has a hollow structure. 2. The rimless spectacle component according to claim 1, wherein the fitting shaft end has a structure capable of being caulked by being deformed under pressure. 2. The rimless spectacle component according to claim 1, wherein a screw groove is formed inside the fitting shaft end, and the screw shaft is screwed into the screw groove to be deformed under pressure and caulked.