JPH0244259Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a rim of an eyeglass frame.

(Prior art) Eyeglass frames are used to hold predetermined lenses, and are made up of a front frame and a temple.The front frame has a rim for fixing the lens, which is symmetrically arranged around the bridge. They are connected. The temples are connected via hinges to end pieces brazed to both sides of the front frame so that they can be opened and closed. Of course, in the case of nylon frames or plastic frames, the rim, bridge, and endpiece are integrally molded, but even if glasses frames are made of any material, the rim has grooves to secure the lenses. The outer peripheral surface of the lens fits into the hole. However, the outer circumferential surface of the lens is generally not formed in one plane, and therefore the rim shape is not just a planar curve but a three-dimensional curve.

In this way, the rim of the eyeglass frame and the outer periphery of the lens are formed into a predetermined three-dimensional curve, but they must match perfectly, and if there is a slight deviation, the lens Since the outer circumferential surface does not fit completely into the groove of the rim and is fixed even if there is only partial contact, locally concentrated stress is applied to the lens, and the lens may be damaged by some kind of impact or external force. This can lead to problems such as detachment or even damage.

By the way, as shown in FIG. 7, there are many cases in which the outer periphery of the lens is not completely constrained by the rim line on the rim of a spectacle frame, and the lower half is fixed to the upper half of the rim using water thread or the like. In order to restrain the lens with such a water thread, a concave groove is formed on the outer periphery of the lens, and the water thread is fitted into the concave groove, and the water thread is fixed to both ends of the rim. However, there is also a nylon thread between the rim and the lens. This is to connect the rim and lens, and the nylon thread is connected by fitting 1/2 into the groove formed on the outer periphery of the lens and 1/2 into the groove formed on the inner periphery of the rim. (See Figure 8). The relationship between the rim and lens of such eyeglass frames is such that the lens is not completely constrained by the rim, so even if there are some errors in shape or size between the two, the lens may become strained and break. Although this type of error in shape is rare, it is a major cause of lens detachment.
That is, the nylon thread is simply inserted into a groove formed on the inner periphery of the rim, and it is not easy to make the nylon thread fit into the three-dimensionally curved groove. Therefore, even if a small external force is applied, a situation may occur in which the product immediately separates from the groove.

(Purpose of this invention) As described above, the rim of conventional metal eyeglass frames cannot be formed into a three-dimensional shape with the desired dimensions and shape due to subtle changes in the rim wire material and differences in thickness. However, when a lens of the correct size and shape is attached to such a rim, the above-mentioned problems occur, and one of the objects of the present invention is to solve these problems. Furthermore, when attaching the lower half to the upper half of the rim using water thread, the nylon thread that connects the rim and lens does not fit into the groove on the inner circumferential surface of the lens, resulting in the lens coming off. The second objective of the present invention is to solve this problem.

(Structure of the present invention) Therefore, in order to solve the above-mentioned problems, the rim for eyeglass frames according to the present invention is constructed with the following features.

(1) The rim has regularly formed holes that penetrate the outer and inner circumferential surfaces. Although the means for forming the hole is not limited here, in general, a plate material of a certain thickness can be press punched and processed together with the rim wire. Moreover, since it is not easy to make holes in a thin rim wire, this can be solved by making the rim wire itself corrugated and punching holes in the convex portions. In addition, in the present invention, by twisting two thin wires into a string and pressing the string flat with a press, a hole in the shape of a continuous figure 8 can be obtained. You may use it. Therefore, the rim wire obtained in this manner can be used as a rim wire because it is integrated by press molding at the location where the two twisted wires cross each other.

(2) Water thread, etc. is passed through the hole like a sewing thread,
It is fixed to the rim wire. Therefore, by passing the water thread through the rim wire, the thickness of the water thread protrudes from the outer and inner peripheral surfaces at every other pitch of the hole. The lens is fixed to the rim constructed in this way, and a concave groove is continuously formed on the outer circumferential surface of the lens, and a water thread protruding from the inner circumferential surface of the rim is fitted into the concave groove. It will match.

Hereinafter, embodiments of the rim for eyeglass frames according to the present invention will be described in detail based on the drawings.

(Embodiment) Fig. 1 shows a general metal eyeglass frame, in which 1 is a rim, 2 is a bridge, 3 is an end piece, 4 is a temple, and 5 is a nose pad.
1' are connected symmetrically with respect to the bridge 2. The nose pad 5 is also symmetrically attached to the rim 1 below the bridge 2, and the outer parts of the rim 1 are brazed with end pieces 3, 3.
A temple 4 is connected to the armor 3 via a hinge 6 so as to be openable and closable. By the way, the lens 7 of a predetermined shape is fixed to the rim 1,
The rim 1 does not have a conventional rim shape, and a thread is threaded through the rim 1.

Figures 2a and 2b are partially enlarged views, in which 8 represents a wire and 9 represents a thread, and the two wires 8, 8 are twisted into a string, Thereafter, it is pressed from above and below with a press to form a rim line with a constant thickness t. Therefore, by being crushed, the string spreads in the width direction, holes 10 are continuously formed at a constant pitch, and the wires 8, 8 are compressed and fixed. As shown in the figure, a thread 9 is passed through the holes 10, 10, . . . like a sewing thread. Here, the thread 9 may be made of nylon or the like as long as it is durable, and the thickness d is set to correspond to the groove formed on the outer peripheral surface of the lens.

FIGS. 3 and 4 show a method of fixing a lens 7 using such a rim 1, in which a concave groove 13 is continuously formed on the outer circumferential surface 12 of the lens 7. A thread 9 protruding from the inner circumferential surface 14 of the rim 1 is fitted into the groove 13, and the lens 7 is fixed to the rim 1 via the thread 9.

By the way, such a rim 1 is not limited to the case where the entire outer circumferential surface 12 of the lens 7 is restrained, but also the case where only the upper half of the rim 1 is used and the lower half is restrained to the rim 1 using a water thread. In this case, the groove 13 is used as it is as a groove for the water thread to fit into.
can be used.

FIG. 5 shows a case where a concave groove 15 is formed on the outer circumferential surface 12 of the rim 1, and when the thread 9 protruding from the outer circumferential surface 12 becomes an obstacle in the design when viewed from the front of the eyeglass frame. A groove 15 may be formed in the rim wire as shown in the figure. Of course, on the contrary, the protruding threads 9 on the outer circumferential surface 12 can also be used for design purposes, and for example, the threads can be colored to obtain the design effect.

By the way, FIGS. 6a and 6b show another embodiment showing a part of the rim, in which press punching is used instead of forming the hole 10 by crushing the string as described above.

Moreover, the rim wire is not a straight wire but a corrugated wire, with holes 10 formed in each convex part, and the thread 9
I am passing through. Therefore, it is preferable to directly process such a rim wire from a plate material, rather than using a wire rod as the raw material.

As described above, the eyeglass frame rim according to the present invention has holes penetrating from the outer circumference to the inner circumference formed at equal pitches, and such continuous holes 10, 10...
A thread is threaded through it like a sewing thread, and the thread protrudes from the inner circumferential surface in a regular manner, resulting in the following effects.

(Effects) (1) When the rim according to the present invention fixes the lens,
It is attached via highly flexible water thread, etc.
In other words, since the metal surface does not come into contact with the outer peripheral surface of the lens, even if the rim itself has some size and shape errors, local stress concentration will not be applied to the lens when it is fixed. In addition, even when an external force is applied, the flexible thread alleviates the impact force and can be safely attached to the lens without putting any strain on the lens.

(2) Even when used as a rim for only the upper half, the thread that fits into the groove on the outer circumferential surface of the lens is fixed to the hole in the rim thread and can be removed from the rim line. This is very effective in preventing the lens from coming off.

(3) By coloring the threads threaded through the rim line, a type of design effect can be obtained in which parts of the rim line protrude continuously and neatly from the outer circumferential surface of the rim.

(4) Furthermore, even though the thread for attaching the lens is passed through the rim, there is some gap, and since the gap is connected to the outer peripheral surface of the lens, there may be some interposition/adhesion between the lens and the rim. It becomes possible to wash away the dirt that is present through the holes.

[Brief explanation of the drawing]

Figure 1 shows the form of a general eyeglass frame, and
Figures a and b are partially enlarged views of the rim according to the present invention, where a is a plan view, b is a front view, Figure 3 shows a state in which a lens is fixed to the rim, and Figure 4 shows a state in which a lens is fixed to the rim. 3, FIG. 5 shows another embodiment corresponding to FIG. 4, FIGS. 6 a and b show another embodiment showing a part of the rim line, and FIG. The figure shows a part of a frame in which a water thread is used for the lower half of the lens, and FIG. 8 shows an enlarged cross-sectional view taken along the line AA in FIG. 7. 1...Rim, 2...Bridge, 3...Armor,
4... Crane, 5... Nose pad, 6... Hinge,
7...Lens, 8...Wire, 9...Thread, 10
... hole, 11 ... cross point, 12 ... outer peripheral surface,
13, 15... Concave groove, 14... Inner peripheral surface.

Claims (1)

[Claims for Utility Model Registration] (1) In the rim of a metal eyeglass frame for fixing lenses, holes are formed at equal pitches passing through the outer and inner surfaces of the rim, and sewing threads are inserted into the holes. A rim for eyeglass frames, characterized in that a thread having high flexibility and tensile strength, such as water thread, is passed through the rim, and the thread is partially continuously projected from at least the inner peripheral surface of the rim. (2) The rim for glasses frames according to claim 1, in which the thread is colored. (3) A utility model according to claim 1, wherein grooves are continuously formed on the outer circumferential surface of the rim wire, and the threads that are passed through the holes and protrude toward the outer circumferential surface are accommodated in the grooves. Rims for glasses frames.