JP3014797U - Lens connection structure in rimless glasses - Google Patents

Abstract

(57) [Summary] [Purpose] To easily and securely connect temples and bridge members to the lens. [Structure] The connecting portion 3 of the temple 2 is connected to a lens 7 via a fixing member 6. The fixing member 6 has a lens peripheral surface 10
Fixing piece 1 protruding inward of the lens to abutting piece 16 that abuts against
7 are connected in series, and a fixing hole 19 is provided in the inner end side portion thereof. In addition, the fixed piece 16 has a second engaging portion 2 formed of a curved groove.
1 is provided. The second engaging portion 21 has a connecting portion 3
The first engaging portion 20 forming the back surface side of is fitted. Then, the lens 7 is fixed by using the fixing hole 26 provided in the inner end side portion of the connecting piece 9, the fixing hole 19 of the fixing member 6, and the screw inserting hole 13 of the lens 7, and the nut 30. The fixing member 6 and the connecting portion 3 are integrally connected with each other. As a result, the connecting portion 3 is connected to the lens 7 in a state where the connecting portion 3 is positioned as required and prevented from rotating.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lens connecting structure for rimless glasses that connects a connecting portion of a bridge member or a connecting portion of a temple to a lens.

[0002]

[Prior art]

 Conventionally, the structure of the connecting portion in the rimless spectacles in which the bridge member is connected to the inner portion of the lens and the temple is connected to the outer portion of the lens is conventionally configured as follows.

That is, as shown in FIGS. 15 to 16, a curved contact piece b that contacts the lens peripheral surface a is brazed to the end of the connecting portion main body c, and also protrudes inward of the lens and is located on the inner end side. A connecting piece e having a connecting hole d in its part was brazed to the corresponding contact piece b. Then, the contact piece b is brought into contact with the lens peripheral surface a as required, and the connection hole d of the connection piece is aligned with the screw insertion hole f of the lens so that the connection hole d and the screw insertion hole f are aligned. The connecting screw g is inserted, and the nut i is screwed into the screw shaft portion h projecting to the other surface side of the lens and tightened to fix the connecting portion to the lens.

[0004]

[Problems to be solved by the device]

 As described above, in the conventional manufacturing process of rimless eyeglasses, when forming the connecting part of the bridge member and the connecting part of the temple, a process of brazing a plurality of types of small parts in a predetermined manner is required, and the manufacturing process is often performed. There was a problem that productivity was poor because it took a lot of time. Further, since the brazing is formed at a plurality of places, when the connecting portion is bent when adjusting the opening degree of the temple, there is a possibility that brazing may occur or the brazing portion may be broken.

Further, since the connecting portion is constituted by the brazing means as described above, a certain brazing area is required. For this reason, for example, as shown in FIG. 15, the contact piece b has to be formed to be relatively long in the up and down direction, and it has been pointed out that the contact piece in the up and down direction is unpleasant for the eyeglass design. It was

An object of the present invention is to provide a lens connecting structure for rimless glasses that can solve the above problems, and further proceed to determine the contact state between the contact piece and the lens peripheral surface. It is an object of the present invention to provide a lens connection structure in rimless glasses that can improve the connection strength of lenses as a stable structure.

[0007]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention adopts the following means. That is, the lens connecting structure (hereinafter referred to as a connecting structure) in the rimless glasses according to the present invention is such that the connecting part of the bridge member connecting the lenses or the connecting part of the temple is connected to the lens through the fixing member. A lens connection structure for eyeglasses, wherein the connection portion has a connection piece protruding inward of the lens, and an inner end side portion of the connection piece has a common hole center with a screw insertion hole provided in the lens. Connection hole is provided. Further, in the fixing member, a fixing piece protruding inward of the lens is continuously provided to an abutting piece that abuts on the lens peripheral surface, and a hole center is shared with the screw insertion hole at an inner end side portion of the fixing piece. And a fixing hole is provided, and at least the fixing piece is provided with a second engaging portion that can be fitted into the first engaging portion on the back surface side of the connecting piece with the concave and convex portions. Then, the fixing member is interposed between the lens and the connecting piece to fit the first engaging portion and the second engaging portion, and the screw insertion hole and the fixing hole are aligned. Also, the lens, the fixing member, and the connecting portion are integrated by using a fixing screw inserted through the connecting hole and a nut screwed with the fixing screw.

In the above-mentioned connecting structure, when the connecting piece is formed by a round wire portion having a circular cross section, the first engaging portion is constituted by a curved projecting surface forming a back surface side of the connecting piece, and is fixed on one side. It is preferable that the second engaging portion on one side be configured with a curved concave groove that can be fitted to the curved protruding surface. Further, in the above connecting structure, when the connecting piece forming a part of the connecting portion and the lateral piece traversing the lens peripheral surface are formed by a round line portion having a circular cross section, the first engaging portion is The connecting piece and the lateral piece are formed with curved protruding surfaces that form the back side, while the second engaging portion is formed with curved concave grooves formed on the respective surface portions of the fixing piece and the abutting piece of the fixing member. It should be configured with

Further, in each of the above-mentioned connecting structures, it is preferable to provide projecting portions above and below the back surface of the abutting piece of the fixing member so as to come into contact with the peripheral surface of the lens.

[0010]

[Action]

 However, according to the connecting structure of the present invention, the first engaging member provided on the connecting portion is provided on the second engaging portion of the fixing member in which the abutting piece is in contact with the lens peripheral surface and is prevented from rotating. The mating part is in the concave and convex fitting state. In addition, the lens, the fixing member, and the fixing piece are integrally connected using the fixing screw and the nut. Therefore, the connecting portion of the temple and the bridge member is connected to the lens while being positioned and locked in a desired manner.

In particular, when the protrusions are provided above and below the back surface of the connecting piece of the fixing member, even if a slight cutting error occurs when the lens is cut into a lens shape, the contact piece is Since it is possible to reliably contact the lens peripheral surface at one of the protrusions, the contact stability can be improved.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 3, a connecting structure 1 according to the present invention connects a connecting portion 3 of a temple 2 and a connecting portion 3 of a bridge member 5 to a lens 7 via a fixing member 6. Hereinafter, both the connecting portion 3 of the temple 2 and the connecting portion 3 of the bridge member 5 will be described simultaneously.

As shown in FIGS. 4 and 5, the connecting portion 3 is formed of a round wire portion having a circular cross section, and a connecting piece 9 protruding inward of the lens and a lateral piece crossing the lens peripheral surface 10. A circular connecting hole 15 is provided in the inner end side portion 12 of the connecting piece 9 so as to have a common hole center with the circular screw insertion hole 13 provided in the lens 7.

Further, as shown in FIGS. 4 to 5 and 6 to 7, the fixing member 6 includes a contact piece 16 capable of contacting the lens peripheral surface 10 and a fixing piece 17 protruding inward of the lens. It is projected, and the whole is cast-molded in one piece. An inner end portion 18 of the fixing piece 17 is provided with a fixing hole 19 aligned with the screw insertion hole 13 and the connecting hole 15, and passes through the central portions of the fixing piece 17 and the contact piece 16. As described above, the first engaging portion 20 as the curved protruding surface forming the back surface side of the connecting piece and the lateral piece and the second engaging portion 21 as the curved concave groove that can be fitted in the concave and convex are continuously provided. ing. In this embodiment, as shown in an enlarged view in FIGS. 5 and 7, projections 22 and 22 that can come into contact with the lens peripheral surface 10 are provided above and below the back surface of the contact piece 16.

After mounting the bushes 23 with the collars in the screw insertion holes 13, resin washers 24 are interposed between the lens 7 and the fixing piece 17 and between the fixing piece 17 and the connecting piece 9, respectively. As shown in FIG. 5, the contact piece 16 of the fixing member 6 is brought into contact with the lens peripheral surface 10 at the two protrusions 22, 22 on the upper and lower surfaces of the back surface thereof, and the inner end side portion 18 of the fixing piece is fixed. The fixing hole 19 is aligned with the screw insertion hole 13 and the connecting hole 15 so as to be interposed between the lens 7 and the inner end side portion 12 of the connecting piece, and as shown in FIG. The part 20 and the second engaging part 21 are fitted together (FIG. 2). After that, the fixing screw 26 is inserted into the screw insertion hole 13, the fixing hole 19 and the connecting hole 15, and the resin washer 29 is fitted to the screw shaft portion 27 (FIG. 2) protruding to the other surface side of the lens and the nut is fitted. The connection portion 3 is connected to the lens 7 by screwing and tightening 30.

In the case of such a connecting structure, the abutting piece 16 abuts the lens peripheral surface 10 and is fixed to the second engaging portion 21 of the fixing member 6 (FIG. 8) in a state where it is prevented from rotating. The first engaging portion 20 provided in the connecting portion 3 is in a concave-convex fitting state (FIG. 9), and the lens 7, the fixing member 6 and the connecting piece 9 are integrated using the fixing screw 26 and the nut 30. Since it is connected to the lens 7 (FIG. 2), the temple connecting portion 3 is in a state of being connected to the lens 7 in a state in which it is positioned as required and prevented from rotating. In this embodiment, since the projections 22 are provided on the upper and lower surfaces of the back surface of the connecting piece of the fixing member 6, even if a slight cutting error occurs when the lens is cut into a sphere shape, Since the contact piece can be reliably brought into contact with the lens peripheral surface 10 at the two projections 22, 22, the contact stability is improved.

FIG. 10 shows a case in which a connecting piece 9 that constitutes the connecting portion 3 of the temple is provided so as to project slightly outward from the lens peripheral surface 10, and as shown in FIG. The second engaging portion 21 is not provided in 16 and only the surface portion of the fixed piece 17 is provided with the second engaging portion 21 formed of, for example, a curved groove.

12 to 13 show a case where the second engaging portion 21 made of a protruding portion is provided on the fixing piece 17 of the fixing member 6 contrary to the case of the above embodiment. In this case, the first engaging portion 20 is provided on the rear surface side of the connecting piece 9 as a concave portion that can be fitted in the projection and the concave portion.

Further, the fixing member 6 may be configured, for example, as shown in FIG. 14, such that the abutting piece 16 does not include the protrusions 25, 25 that can abut on the lens peripheral surface. .

[0020]

[Effect of device]

 In the present invention, since the connecting structure of the rimless glasses is constructed by using the fixing member having the rotation preventing function, the fixing piece is attached to the lens when connecting the connecting parts of the temples and bridge members constituting the glasses. The connection part is positioned and fixed to a desired position by fitting the first engaging part and the second engaging part in a concavo-convex fit and fixing the whole with screws. It can be easily and surely connected to the lens in the closed state.

Therefore, according to the present invention, it is possible to omit the conventional process of forming the connecting portion through a brazing process which is troublesome and requires a special brazing condition depending on the material. it can. Therefore, in order to improve the manufacturing efficiency of the rimless spectacles, even when the connecting portion is bent to adjust the opening degree of the temple, the problem of the wax separation or the brazed portion breakage as described above is caused. There is no fear of inviting.

In particular, when the protrusions are provided above and below the back surface of the connecting piece of the fixing member, even if a slight cutting error occurs when the lens is cut into a lens shape, the contact piece can be divided into these two protruding pieces. Since it is possible to reliably contact the lens peripheral surface at the part, the contact stability can be improved.

Further, since the abutting piece can be formed small because the brazing area is not required, it is possible to provide the rimless spectacles having a simple design.

[Brief description of drawings]

FIG. 1 is a front view illustrating an embodiment of a connecting structure of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a perspective view thereof.

FIG. 4 is an exploded perspective view illustrating a temple-side coupling structure.

FIG. 5 is a perspective view illustrating a fixing member used therefor.

FIG. 6 is an exploded perspective view illustrating a connecting structure on the bridge side.

FIG. 7 is a perspective view illustrating a fixing member used therefor.

FIG. 8 is a cross-sectional view showing a state where the fixing member is brought into contact with the lens peripheral surface at the protrusions provided on the upper and lower surfaces of the back surface of the contact piece.

FIG. 9 is a cross-sectional view illustrating a fitted state of a first engaging portion and a second engaging portion.

FIG. 10 is a plan view illustrating another aspect of the connection structure.

11 is a perspective view showing a fixing member used in the connection structure shown in FIG.

FIG. 12 is a perspective view showing a fixing member having a second engaging portion formed of a protrusion.

FIG. 13 is a cross-sectional view showing another aspect of a fitted state of the first engaging portion and the second engaging portion.

FIG. 14 is a perspective view showing another aspect of the fixing member.

FIG. 15 is a front view illustrating a conventional connecting structure.

FIG. 16 is a sectional view illustrating a conventional connecting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection structure 2 Temple 3 Connection part 5 Bridge member 6 Fixing member 9 Connection piece 10 Lens peripheral surface 13 Screw insertion hole 15 Connection hole 16 Abutment piece 17 Fixing piece 19 Fixing hole 20 First engaging portion 21 Second engagement Joint 22 Projection 26 Fixing screw 30 Nut

Claims (4)

[Scope of utility model registration request] 1. A lens connection structure for rimless glasses, in which a connection part of a bridge member or a connection part of a temple that connects lenses to each other is connected to a lens via a fixing member, wherein the connection part is inside a lens. A connecting piece that protrudes in the direction of the lens, and a connecting hole is formed in the inner end side portion of the connecting piece with the screw insertion hole provided in the lens in common with the hole center. A fixing piece projecting inward of the lens is connected to a contact piece that comes into contact with the surface, and a fixing hole is provided at the inner end side portion of the fixing piece with the screw insertion hole and the hole center in common, or at least fixed. The piece is provided with a second engaging portion that can be fitted into the first engaging portion, which is the back side of the connecting piece, in a concavo-convex manner, and the fixing member is interposed between the lens and the connecting piece. The first engaging portion and the second engaging portion are fitted to each other, and the screw is aligned. Lens connection in rimless glasses characterized in that a lens, a fixing member, and a connecting portion are integrated by using a fixing screw for inserting the insertion hole, the fixing hole, and the connecting hole and a nut screwed to the fixing screw. Construction. 2. When the connecting piece is formed by a round wire portion having a circular cross section, the first engaging portion is a curved projecting surface which forms the back surface side of the connecting piece, while the second engaging portion is provided on the second side of the fixing piece side. The lens connection structure for rimless glasses according to claim 1, wherein the engaging portion is a curved groove that can be fitted to the curved protruding surface. 3. In the case where a connecting piece and a lateral piece that crosses the lens peripheral surface, which form a part of the connecting portion, are formed by a round line portion having a circular cross section, the first engaging portion is the connecting portion. The second engaging portion is a curved concave groove formed on the surface of each of the fixing piece and the abutting piece of the fixing member. The lens connection structure for the rimless glasses according to claim 1. 4. The lens connection structure for rimless glasses according to claim 1, 2 or 3, characterized in that projections that can come into contact with the lens peripheral surface are provided above and below the back surface of the abutment piece of the fixing member. .