JPH0545634U - Eyeglass lens holding frame connection structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To compensate for the lack of connecting strength when connecting lens holding frames to each other with a connecting member. [Structure] The upper edge portions of the left and right lens holding frames 1 and 1 are connected by a connecting member 3. Each of the horizontal connecting portions 7, 7 on both sides of the connecting member 3 is inserted into a reinforcing cylinder 6 integrated with a required portion of an upper edge portion of the lens holding frame 1 so as to protrude from the reinforcing cylinder by a required length. The protrusion 9 is fixed to the upper edge.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an eyeglass lens holding frame connecting structure for connecting left and right lens holding frames to each other using a connecting member supported by a reinforcing tube fixed to the lens holding frame.

[0002]

[Problems to be Solved by Prior Art and Invention]

 Metallic materials such as nickel alloy, nickel silver, and stainless steel, which are generally used as the material for eyeglass frames, have excellent brazing properties, and therefore, eyeglass frames produced by connecting parts made of such materials with a braze. Is stable in strength.

[0003] By the way, the recent consumer orientation toward eyeglass frames tends to demand eyeglass frames that are softer to wear and lighter in weight. In response to such demands from the viewpoint of materials, it has been attempted in recent years to use light and highly elastic materials such as superelastic alloys and shape memory alloys. However, since these materials are inferior in brazing property, if the lens holding frames are connected by brazing using a connecting member made of such materials, the connection strength is weak and the spectacle frame lacks strength stability. I had no choice but to do so.

An object of the present invention is to provide a connection structure that improves connection strength when there is a problem in reliability of connection strength between lens holding frames, such as when the connection member is made of a material having poor brazing property. It is a thing.

[0005]

[Means for Solving the Problems]

 One of the connecting structures of the spectacle lens holding frame according to the present invention (hereinafter referred to as a connecting structure) is formed by connecting the upper edge portions of the left and right lens holding frames 1 and 1 with a connecting member 3. Each of the horizontal connecting portions 7 and 7 on both sides of the is inserted into a reinforcing cylinder 6 integrated with a required portion of the upper edge portion 2 of the lens holding frame 1 and protrudes by a required length from the reinforcing cylinder. 9 is fixed to the upper edge portion 2.

In addition to the connection structure according to the present invention, upper edge portions of the left and right lens holding frames 1 and 1 are connected by a connecting member 3, and horizontal connecting portions 7 on both sides of the connecting member 3 are connected. Each of 7 is inserted into a reinforcing cylinder 6 integrated with a required portion of the upper edge of the lens holding frame 1 and fixed to the reinforcing cylinder 6.

In addition to the connection structure according to the present invention, the inner edge portions 10 and 10 of the left and right lens holding frames 1 and 1 are connected to each other by a connecting member 3 having an inverted U shape. Each of the hanging connecting portions 12, 12 on both sides of the lens holding frame 1 is inserted into a reinforcing cylinder 6 integrated into a required portion of the inner edge portion 10 of the lens holding frame 1 so as to protrude by a required length from the reinforcing cylinder. It is characterized in that 13 is fixed to the inner edge portion 10.

In addition to the connection structure according to the present invention, the inner edge portions 10 1, 10 of the left and right lens holding frames 1, 1 are connected to each other by a connecting member 3 having an inverted U shape. Each of the hanging connecting portions 12 and 12 on both sides is inserted into a reinforcing cylinder 6 integrated with a required portion of the inner edge portion 10 of the lens holding frame 1 and fixed to the reinforcing cylinder 6. ..

[0009]

[Action]

 However, when the connecting member 3 is bent when the eyeglasses are unworn or when the eyeglass lens is wiped, the reinforcing tube 6 resists this. Therefore, even when the connecting member 3 is projected from the reinforcing tube 6 and is fixed to the upper edge portion 2 and the inner edge portion 10 of the lens holding frame 1 by brazing, the force due to the bending of the connecting member is fixed. Almost no part is added and there is no risk of wax separation.

[0010]

【Example】

An embodiment of the present invention will be described below with reference to the drawings. First Embodiment In FIGS. 1 and 2, the connection structure according to the present invention is formed by connecting the upper edge portions 2 and 2 of the left and right lens holding frames 1 and 1 with a connection member 3. In the present embodiment, the lens holding frame 1 is formed in an annular shape and is formed of a metal material having a high brazing property such as nickel alloy or nickel silver. Further, a cylindrical reinforcing tube 6 formed of the same material as the lens holding frame and provided with an annular decorative groove 5 on the surface is provided at the inner side of the upper edge of the lens holding frame 1. It is brazed with the axial direction aligned with the length direction of the upper edge.

The connecting member 3 is formed as a linear member made of, for example, a superelastic alloy, the central part thereof is slightly curved forward, and both sides of the connecting member 3 are the upper edge parts of the lens holding frame. The horizontal connecting portions 7, 7 are formed along the horizontal connecting portions.

Each of the horizontal connecting portions 7 and 7 on both sides of the connecting member 3 is inserted into a reinforcing cylinder 6 integrated with the upper edge portion 2 of the lens holding frame 1 so as to protrude from the reinforcing cylinder, and the protrusion The upper edge portion 2 is brazed on the front end side of the portion 9.

Since the metal material having superelasticity is inferior in brazing property, brazing strength between the protruding portion 9 and the upper edge portion 2 is not strong. However, even if bending is applied to the connecting member when the glasses are worn and removed, the reinforcing cylinder 6 resists this, so that the left and right lens holding frames 1, 1 are stably connected by the connecting member 3. is there.

Second Embodiment FIG. 3 shows another embodiment of the connecting structure according to the present invention, in which the inner edge portions 10, 10 of the left and right lens holding frames 1, 1 are connected by a connecting member 3. It becomes. In the figure, the nose pad is omitted.

The lens holding frame 1 has the same configuration as described above. The reinforcing tube 6 has a cylindrical shape, and the axial direction thereof is aligned with the length direction of the inner edge portion 10 and is attached to the upper and lower substantially central portions of the inner edge portion.

The connecting member 3 has an inverted U shape in which both ends of the horizontal portion 11 are bent downward to form hanging connecting portions 12 and 12 along the inner edge portion 10, and the hanging connecting portions 12 and 12 on both sides thereof are formed. Is inserted into the reinforcing cylinder 6, and the protruding portion 13 protruding from the reinforcing cylinder 6 is brazed to the inner edge portion 10.

Also in this case, as in the case of the above-described embodiment, the reinforcing tube 6 resists the bending action applied to the connecting member 3, and the left and right lens holding frames 1 and 1 are stably connected by the connecting member 3. Is in a state.

Third Embodiment FIG. 4 shows that in the case of the first embodiment, the reinforcing cylinder 6 is formed to have a slightly longer length, and the ends of the horizontal connecting portions 7 and 7 inserted into the reinforcing cylinder 6 are the same. The figure shows the case where they are fixed in the reinforcing cylinder 6 by the caulking means 15, the screwing means, the adhering means or the like shown in the figure. Also in this case, the reinforcing tube 6 resists bending work applied to the connecting member 3, and the left and right lens holding frames 1 and 1 are stably connected by the connecting member 3.

Fourth Embodiment FIG. 5 shows that in the case of the second embodiment, the reinforcing cylinder 6 is formed to have a slightly longer length, and the hanging connecting portions 12, 12 on both sides of the connecting member 3 are formed in the same manner as in the third embodiment. The case where it is fixed to the reinforcing cylinder 6 is shown.

[0020]

[Effect of the device]

 The spectacle frame according to the present invention is configured such that when the lens holding frames are connected to each other by the connecting member, the connecting member is inserted or inserted into the reinforcing tube, so that the connecting member can be used when the glasses are worn and removed or when the glasses are wiped. When bending is applied to the reinforced cylinder, the reinforcing cylinder resists this. Therefore, the left and right lens holding frames are stably connected by the connecting member, and even if the connecting member is directly fixed to the lens holding frame, the connecting strength may not be reliable. A stable connection is guaranteed.

Therefore, when the lens holding frame or the connecting member is formed for the purpose of compensating for the lack of brazing strength when brazing a superelastic alloy or shape memory alloy, or for forming a lens holding frame or a connecting member using a material mainly composed of synthetic resin. When the structure of the present invention is applied to the connection of the lens holding frame by the connecting member such as the purpose of compensating for the lack of welding strength in the above, while giving the eyeglass frame the characteristics such as superelasticity, shape restoration property and light weight peculiar to these materials. Also, it is possible to manufacture a spectacle frame with excellent strength stability.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which a horizontal connecting portion is inserted into a reinforcing cylinder.

FIG. 3 is a perspective view showing another embodiment of the present invention.

FIG. 4 is a partially cutaway front view showing another embodiment of the present invention.

FIG. 5 is a partially cutaway front view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lens holding frame 2 Upper edge part 3 Connection member 6 Reinforcement cylinder 7 Horizontal connection part 9 Projection part 10 Inner edge part 12 Hanging connection part 13 Projection part

Claims (4)

[Scope of utility model registration request] 1. The left and right lens holding frames 1, 1 are connected at their upper edge portions by a connecting member 3, and the horizontal connecting portions 7, 7 on both sides of the connecting member 3 are connected to the lens holding frame 1 respectively. It is inserted into a reinforcing cylinder 6 integrated with a required portion of the upper edge portion 2 and protruded by a required length from the reinforcing cylinder, and the projecting portion 9 is placed on the upper edge portion 2.
A structure for connecting a spectacle lens holding frame, which is characterized in that it is fixed to. 2. The upper edge portions of the left and right lens holding frames 1, 1 are connected to each other by a connecting member 3, and the horizontal connecting portions 7, 7 on both sides of the connecting member 3 are connected to the lens holding frame 1 respectively. A connecting structure for a spectacle lens holding frame, which is inserted into a reinforcing cylinder 6 integrated at a required portion of an upper edge portion and fixed to the reinforcing cylinder 6. 3. Inner edge portions 1 of the left and right lens holding frames 1, 1.
0 and 10 are connected to each other by a connecting member 3 having an inverted U shape, and the hanging connecting portions 12 and 12 on both sides of the connecting member 3 are connected.
Each of the above is inserted into the reinforcing tube 6 integrated with the required portion of the inner edge portion 10 of the lens holding frame 1 and protruded by the required length from the reinforcing tube, and the protruding portion 13 is fixed to the inner edge portion 10. A characteristic connecting structure for eyeglass lens holding frames. 4. The inner edge portion 1 of the left and right lens holding frames 1, 1
0 and 10 are connected to each other by a connecting member 3 having an inverted U shape, and the hanging connecting portions 12 and 12 on both sides of the connecting member 3 are connected.
Each of the above is inserted into a reinforcing cylinder 6 integrated at a required portion of the inner edge portion 10 of the lens holding frame 1 and fixed to the reinforcing cylinder 6, and a connecting structure for a spectacle lens holding frame.