JPH08160361A - Rimless spectacle frame - Google Patents

Abstract

PURPOSE: To provide a rimless spectacle frame featuring good quality and low cost by decreasing the kinds and number of parts and simplifying operations. CONSTITUTION: This rimless spectacle frame has a bridge part for coupling the inner side ends of right and left spectacle lenses to each other, a connecting part having hinge parts connected to temple parts on the outer ends of the right and left spectacle lenses and the temple parts having ear bend insertion parts. The bridge part 1 is provided with a bridge 11, lens side butt surfaces 12, lens fixing hole installing surfaces 13 and pad arms 14. The bridge 11, the lens side butt surfaces 12, the lens fixing hole installing surfaces 13 and the pad arms 14 are integrally molded of planar metallic materials.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to eyeglass frames, and more particularly to rimless eyeglass frames.

[0002]

2. Description of the Related Art Generally, a frame of rimless spectacles has a bridge portion that joins inner ends of left and right spectacle lenses to each other, a coupling portion that has a hinge portion that joins temple portions at outer ends of the left and right spectacle lenses, and a modern portion. It consists of a temple with an insert.

Since the frame of the rimless spectacles is structurally inferior in rigidity to the frame of the rimmed spectacles, it is currently mostly made of metal material parts. That is, the frame of the rimless spectacles is made by adding fine parts made of metal material by welding.

[0004] For example, the structure of the parts to be welded in each unit of the rimless spectacle frame is generally as follows.

Bridge (1): Bridge (1
・ Lens side abutment surface (1 each on the left and right) ・ Lens fixing hole installation surface (1 each on the left and right) ・ Pad foot (1 each on the left and right) Connecting part (1 each on the left and right): Lens side abutment surface ・Lens fixing hole installation surface, hinge part, hinge receiver Temple part (1 each on the left and right): Hinge part, Temple If you make one rimless spectacle frame with these small parts groups, it is 19 parts at the number of parts Welding at 14 points is required.

[0006]

The number of processing steps, that is, the number of processing steps is increased by making a large number of types and numbers of parts and adding these parts one by one by welding to make an eyeglass frame. However, it causes the cost to be very high.

The present invention has been made to solve the above problems. In other words, reduce the types and number of parts,
The purpose of the present invention is to provide a rimless spectacle frame of good quality and low cost by simplifying the work.

[0008]

[Means for Solving the Problems] The object is to provide a bridge portion for connecting inner ends of left and right eyeglass lenses to each other, a connecting portion having a hinge portion for connecting temple portions to outer ends of the left and right eyeglass lenses, and a modern insertion portion. In the rimless spectacle frame having a temple part, there is provided a bridge / lens side abutment surface / lens fixing hole installation surface and a pad foot on the bridge portion, and the bridge / lens side abutment surface / lens fixing hole installation surface and This is achieved by a rimless spectacle frame characterized in that the pad legs are integrally formed of a plate-shaped metal material.

Further, the above object is to provide a bridge portion for connecting the inner ends of the left and right eyeglass lenses to each other, a connecting portion having a hinge portion for connecting to the temple portion and a temple portion having a modern insertion portion on the outer ends of the left and right eyeglass lenses. In the rimless spectacle frame having, a lens side surface butting surface, a lens fixing hole installation surface and a hinge portion are provided at the connecting portion, and the lens side surface butting surface, the lens fixing hole installation surface and the hinge portion are made of a plate-shaped metal material. This is achieved by a rimless spectacle frame characterized by being formed in one piece.

Further, the object is to provide a bridge part for connecting the inner ends of the left and right eyeglass lenses to each other, a connecting part having a hinge part for connecting to the temple parts and a temple part having a modern insertion part at the outer ends of the left and right eyeglass lenses. In the rimless spectacle frame having, the temple part comprises a hinge part / modern insertion part and a temple connecting the hinge part and the modern insertion part, and the hinge part is at a twisted position forming a predetermined angle with respect to the temple, and This is achieved by a rimless spectacle frame characterized in that the hinge part, the modern insertion part, and the temple are integrally formed of a plate-shaped metal material.

[0011]

Embodiments of the present invention will now be described with reference to the accompanying drawings and FIGS.

FIG. 1 is a view of rimless spectacles when the spectacle lenses 4 on the left and right are joined and assembled by a bridge portion 1, a connecting portion 2 and a temple portion 3 of a rimless spectacle frame according to the present invention. , (A) is a front view, and (B) is a right side view. That is, the rimless spectacles has a bridge portion 1 described below that connects the inner ends of the left and right spectacle lenses 4 to each other, and a connection portion described later that has a hinge portion that connects to a temple portion 3 described later at the outer ends of the left and right spectacle lenses 4. Part 2 and modern insert
It is composed of a frameless spectacle frame having a temple portion 3 described later with 37.

FIG. 2 is an enlarged view showing the bridge portion 1 according to the present invention, (A) is a front view showing the right half of the bridge portion 1, (B) is a right side view of (A), and (C). Is a development view of the right half.

The shapes shown in FIGS. 2A and 2B are obtained as follows. That is, the pad leg 14 of FIG. 2C is bent 90 ° toward the back side of the paper on the line C-C. Next, place the lens fixing hole installation surface 13 on the front side of the paper on the line bb.
° Bend. Then, the lens side abutting surface 12 is bent 90 ° toward the back side of the paper at the line aa. Further, the lens side abutting surface 12 is bent according to the outer shape of the spectacle lens 4, and the bridge 11 and the pad foot 14 are bent into a predetermined shape to obtain the shape shown in FIGS. 2 (A) and 2 (B). To be The bending angle 99 ° of the lens fixing hole installation surface 13 is an angle for adjusting to the concave surface side of the lens that is the mounting surface of the spectacle lens 4 in this embodiment, and is an angle that changes depending on the spectacle lens to be mounted.

As described above, the bridge portion 1 is made of a plate-like bendable metal material, and includes a bridge 11, a lens side abutment surface 12, a lens fixing hole installation surface 13, and a pad foot 14 as shown in FIG. It is made by integrally molding a plate. Then, as a result, the thickness of the bridge 11 of the bridge portion 1, the lens fixing hole installation surface 13, the pad foot 14 in the optical axis direction of the eyeglass lens 4 and the optical axis of the eyeglass lens 4 of the lens side abutment surface 12 are perpendicular to the optical axis. The thickness in the surface direction will be almost the same.

That is, a bridge 11
The lens side abutment surface 12, the lens fixing hole installation surface 13, and the pad foot 14 are arranged as in the development view shown in FIG. 2C (of course, in the development view shape including the left half of the bridge part 1), By performing the bending process after the punching process, it is possible to easily obtain the bridge portion 1 with one component by one-body molding, and the cost reduction effect is great.

When the spectacle lens 4 is attached to the bridge portion 1, as shown in FIG. 2B, the attachment screw S is attached to the stepped hole so that the head of the attachment screw made in the spectacle lens 4 does not come out. It is inserted as shown in the drawing, and is screwed into a screw hole of the lens fixing hole installation surface 13 (the tapping process of this screw hole is a process different from the above-mentioned integral molding process). At that time, the outer shape of the spectacle lens 4 is brought into close contact with the lens side abutting surface 12, and the spectacle lens 4 is attached at a predetermined position.

The lens fixing hole installation surface 13 of the spectacle lens 4
The spectacle lens 4 may be attached by tapping the spectacle lens 4 to attach the hole of the lens fixing hole installation surface 13 as a loose hole, and screwing in the screw S from the opposite direction. A pad box may be attached to the tip of the pad foot 14 by welding.

FIG. 3 is an enlarged view showing the connecting portion 2 according to the present invention, (A) is a front view showing the right connecting portion 2, (B).
Is a right side view of (A), and (C) is a development view thereof. The left connecting portion has a mirror symmetrical shape in FIG.

The shapes shown in FIGS. 3A and 3B are obtained as follows. That is, the lens fixing hole installation surface 23 of FIG. 3 (C) is bent by 95 ° toward the front side of the paper surface along the line aa.
Next, the hinge mounting surface 251 of the hinge portion 25 is bent 90 ° toward the back side of the paper at the line bb. Further, the two hinge shaft hole mounting surfaces 252 of the hinge portion 25 are both bent 90 ° toward the lens side abutment surface 22 at the line C-C and the line C′-C ′. Then, by bending the lens side surface abutting surface 22 according to the outer shape of the spectacle lens 4, the shapes shown in FIGS. 3A and 3B are obtained.

The bending angle of the lens fixing hole installation surface 23 is 95
The angle ° is an angle that changes depending on the spectacle lens to be attached as in the case described with reference to FIG. Further, the two hinge shaft hole installation surfaces 252 are bent at a right angle along the line C-C and the line C'-C ', but the main bending is a combined bending of bending and twisting, which is important for the appearance. Such bending is performed as a part.

As described above, the connecting portion 2 is made of a plate-shaped metal material, and the lens side surface abutting surface 22, the lens fixing hole installation surface 23,
Hinges 25's hinge mounting surface 251, 2 hinge shaft hole mounting surfaces 2
52 is formed by integrally molding one plate as shown in the figure. As a result, the lens fixing hole installation surface 23 of the connecting portion 2 and the hinge mounting surface 251 of the hinge portion 25 in the optical axis direction of the spectacle lens 4 and the two hinges of the lens side abutment surface 22 and the hinge portion 25. The thickness of the axial hole installation surface 252 in the surface direction perpendicular to the optical axis of the spectacle lens 4 becomes substantially the same.

That is, FIG. 3 (C) shows the lens side surface butting surface 22, the lens fixing hole installation surface 23, the hinge attachment surface 251, of the hinge portion 25, and the two hinge shaft hole installation surfaces 252 on one sheet of metal material. By arranging them as shown in a developed view and performing bending after punching by a press, it is possible to easily obtain the connecting portion 2 with one component by integral molding, and the cost reduction effect is great.

When the connecting portion 2 is attached to the spectacle lens 4, it is attached as shown in FIG. 3 (B). Regarding this attachment, referring to FIG. Since the contents are exactly the same, the description is omitted.

4A and 4B are enlarged views including a partial isometric view showing the temple part 3 according to the present invention. FIG. 4A is a general view of the temple part 3, and FIG. 4B is a hinge part 35 of the temple part 3 and its vicinity. Is an enlarged view of FIG. 3, (C) is a side view of (B), and (D) is a development view of the temple portion 3.

In the temple portion 3, one plate-like metal material is arranged with the hinge portion 35, the twist bending portion 38, the temple 36, and the modern insertion portion 37 as shown in the development view of FIG. After the punching process, twist the bent part 38 to the hinge part 35 with respect to the temple 36 (90 ° + 360 ° × n), (n is an integer n
≧ 0) or − (90 ° + 360 ° × n), (n is an integer n
The temple portion 3 can be obtained by performing the twist bending process of ≧ 0) and inserting the modern insertion portion 37 into the modern insertion portion 37 and then bending the modern insertion portion 37 into a predetermined shape as shown in FIG. 1B. The modern insertion part 37 may be bent in advance.

The temple portion 3 thus formed is
When the hinge part 35 and the temple 36 are integrally formed as in the past, the hinge part is made by punching or cutting out from a round bar, or the separately made hinge part is welded to the temple. However, by making as described above, the temple part 3 can be easily obtained by one part by integral molding,
Greatly reduces costs.

The hinge portion 35 of the temple portion 3 is inserted between the two hinge shaft hole installation surfaces 252 of the hinge portion 25 of the connecting portion 2 and is screwed with the rotating shafts aligned with each other to form a frame without a frame. It is attached as a temple.

Although all the members of the bridge portion 1, the connecting portion 2, and the temple portion 3 described above have substantially the same thickness,
It is also possible to have a slight change in thickness during press working such as face pressing.

In the rimless spectacle frame of the present invention, the cost can be sufficiently reduced by providing at least two of the bridge portion 1, the connecting portion 2 and the temple portion 3 described above. .

[0031]

EFFECTS OF THE INVENTION According to the present invention, it is not a conventional method that requires a lot of man-hours such as making many kinds and numbers of parts and joining the parts of this fine part group by welding to make an eyeglass frame. It becomes possible to make it from a single metal material by press forming integral molding,
Frames of rimless glasses with good quality and low cost will be provided.

[Brief description of drawings]

FIG. 1 is an external view of rimless spectacles using a rimless spectacle frame according to the present invention.

FIG. 2 is an enlarged view showing a bridge unit according to the present invention.

FIG. 3 is an enlarged view showing a connecting portion according to the present invention.

FIG. 4 is a diagram showing a temple portion according to the present invention.

[Explanation of symbols]

 1 Bridge part 11 Bridge 12,22 Lens side abutment surface 13,23 Lens fixing hole installation surface 14 Pad foot 2 Connection part 25,35 Hinge part 251 Hinge mounting surface 252 Hinge shaft hole installation surface 3 Temple part 36 Temple 37 Modern insertion Part 38 Torsional bending part

Claims (7)

[Claims] 1. A rim without a bridge portion that connects the inner ends of the left and right eyeglass lenses to each other, a connecting portion that has a hinge portion that connects with the temple portion at the outer ends of the left and right eyeglass lenses, and a temple portion that has a modern insertion portion. In the eyeglass frame,
The bridge portion is provided with a bridge / lens side abutment surface / lens fixing hole installation surface and pad feet, and the bridge / lens side abutment surface / lens fixing hole installation surface and pad feet are integrally formed by a plate-shaped metal material. A rimless spectacle frame characterized by being formed. 2. The thickness of the bridge / lens fixing hole installation surface of the bridge portion and the pad foot in the optical axis direction of the spectacle lens,
The rimless spectacle frame according to claim 1, wherein the abutting surfaces of the lens side surfaces have substantially the same thickness in a plane direction perpendicular to the optical axis of the spectacle lens. 3. A bridge portion for connecting inner ends of left and right eyeglass lenses to each other, a connecting portion having a hinge portion for connecting with temple portions at outer ends of the left and right eyeglass lenses, and a temple portion having a modern insert portion. In the eyeglass frame,
A lens side surface butting surface, a lens fixing hole installation surface and a hinge portion are provided in the connecting portion, and the lens side surface abutting surface, the lens fixing hole installation surface and the hinge portion are integrally formed by a plate-shaped metal material. A rimless spectacle frame featuring. 4. The thickness in the optical axis direction of the spectacle lens of the lens fixing hole installation surface of the connecting portion and the hinge attachment surface of the hinge portion,
4. The rimless spectacle frame according to claim 3, wherein the abutting surface of the lens side surface and the hinge shaft hole installation surface of the hinge portion have substantially the same thickness in the surface direction perpendicular to the optical axis of the spectacle lens. 5. An edgeless structure having a temple part having a bridge part for connecting the inner ends of the left and right eyeglass lenses to each other, a connecting part having a hinge part for connecting to the temple part at the outer ends of the left and right eyeglass lenses, and a temple part having a modern insertion part. In the eyeglass frame,
The temple part is a hinge part that connects the hinge part and the modern insertion part and the hinge part and the modern insertion part, and the hinge part is in a twisted position forming a predetermined angle with respect to the temple,
A rimless spectacle frame, wherein the hinge part, the modern insertion part, and the temple are integrally formed of a plate-shaped metal material. 6. The rimless spectacle frame according to claim 5, wherein the twist of the predetermined angle is (90 ° + 360 ° × n) or − (90 ° + 360 ° × n). However, n is an integer. 7. A rimless spectacle frame having the bridge portion and / or the connecting portion and / or the temple portion, wherein at least two of the bridge portion, the connecting portion and the temple portion are provided. The rimless spectacle frame according to Item 1, 2, 3, 4, 5 or 6.