JPH095676A - Holding structure of spectacle lens - Google Patents

Abstract

PURPOSE: To provide a holding structure of a spectacle lens which allows the easy and secure mounting of the spectacle lens, does not deteriorate in spite of long-term use and has good productivity. CONSTITUTION: Blind holes 1a, 1a are formed in the proper positions at the peripheral end face of the spectacle lens 1 and rim holes 2a, 2a are formed in the prescribed positions of a rim 2 corresponding to these blind holes 1a, 1a. As a result, both (spectacle lens and rim) are easily and securely mounted simply by screwing a connecting member 5 from the rim holes 2a, 2a aligned to the blind holes 1a, 1a in the state of fitting and mounting the rim 2 to the top edge of the spectacle lens 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a so-called nyroll spectacles lens holding structure for holding spectacle lenses mainly on a rim via a wire rod, and is simpler and more robust than conventional nyroll spectacles and spectacles with a frame. The present invention relates to a spectacle lens holding structure capable of attaching and fixing a spectacle lens to and.

[0002]

2. Description of the Related Art Conventionally, as a holding structure for such a spectacle lens, for example, the one disclosed in Japanese Utility Model Publication No. 57-51918 is well known as a conventional example. As shown in FIG. 8, the lens holding structure in this conventional example is a spectacle frame that holds a spectacle lens with a thin wire rod 8 on the rim 2, and an enlarged portion 9 is provided at one end of the wire rod 8 and the inner surface of the rim 2 is provided. A groove 10 and a hole 11 are formed in the groove 10, the wire 8 is fitted in the groove 10, and the enlarged portion 9 is pushed into the hole 11 to be fixed, while the other end of the wire 8 is stepped. A ball portion 13 obtained by enlarging the tip of the wire rod 8 is attached to a mounting piece 12 having an attached hole 12a, and
The mounting piece 12 is fixed to a receiving piece 14 provided at the other end of the rim 8.

[0003]

However, in the spectacle lens holding structure disclosed in Japanese Utility Model Laid-Open No. 57-51918, the groove 10 and the hole 11 are formed in the inner surface of the rim 2. In addition, there is a problem that assembly is troublesome because the structure is complicated and the number of parts is large, such as when the ball portion 9 or the like has to be formed at the tip of the wire rod 8, and the wire rod that tensions the spectacle lens 1 If 8 is a nylon wire, etc., it deteriorates and is easily cut.
There is also a problem that the spectacle lens 1 is likely to come off due to a large twisting force.

The present invention has been made in view of the above problems, and a spectacle lens holding structure with good productivity that allows easy and firm attachment of the spectacle lens and does not deteriorate even after long-term use. It is intended to provide.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems and achieve the intended purpose, the structure which is the gist of the present invention is to attach and detach a spectacle lens to a spectacle component such as a rim or a frame. In a structure for holding a spectacle lens that can be freely held, a spectacle lens that holds a spectacle lens by fitting a connecting member protruding from a local portion of the spectacle component into a hole or a recess formed in the spectacle lens having a predetermined shape. It exists in the holding structure of.

Further, by extension, the connecting member is a connecting screw screwed from a connecting hole formed in the fixing portion of the spectacle component into a blind hole recessed in the outer peripheral end surface of the spectacle lens. It exists in the holding structure of the spectacle lens.

Further, the connecting member is composed of a protrusion protruding from the inner peripheral end surface of the rim or the frame, and is recessed in the outer peripheral end surface of the spectacle lens by the flexible force or elastic force of the rim or the frame itself. It may be press fitted into the blind hole.

[0008]

According to the spectacle lens holding structure of the present invention constructed as described above, the spectacle lens is fitted with the connecting member projecting from the local portion of the spectacle component into the hole or recess formed in the spectacle lens. By firmly holding the lens, it is not necessary to use a conventional wire rod and it is not necessary to form a concave groove on the peripheral end surface of the spectacle lens.

Further, by extension, the connecting member is provided with a connecting screw screwed from a connecting hole formed at a local portion of an eyeglass component such as the rim to a blind hole recessed in an outer peripheral end surface of the eyeglass lens. If it is used, reliable fastening screwing of the spectacle lens and the spectacle component such as the rim becomes possible.

Further, the connecting member is composed of a protrusion protruding from the inner peripheral end surface of the rim or frame, and is a blind hole recessed in the outer peripheral end surface of the spectacle lens by the flexible force of the rim or frame itself. If the rim or frame is expanded outwardly, the spectacle lens can be easily attached by simply pushing it into the blind hole and the projection so as to align with the rim or frame. Alternatively, the spectacle lens can be held more firmly by the flexibility of the frame.

In other words, the fitting of the projection and the blind hole and the flexible force of the rim or the frame itself cooperate to hold the spectacle lens more strongly.

[0012]

EXAMPLE A first example of the holding structure for an eyeglass lens according to the present invention will be described with reference to FIGS. FIG.
FIG. 1 is a front view of folded Nyroll eyeglasses, which includes a rim 2 attached to an upper end side of an eyeglass lens 1,
A temple 4 rotatably connected to the rim 2 via a tip 3 is provided.

The spectacle lens 1 is made of conventional glass or plastic and has blind holes 1a, 1 at appropriate positions on its peripheral end face.
a is formed. The blind holes 1a, 1a are for screwing a connecting member (specifically, connecting screw) 5 described later, and are recessed at a depth corresponding to the outer diameter of the connecting member 5.

The rim 2 is made of an appropriate material such as titanium / nickel alloy and is formed in a substantially semicircular shape so that only the upper half of the spectacle lens 1 can be covered. The rim 2 has rim holes 2a, 2a formed at positions corresponding to the blind holes 1a, 1a of the spectacle lens 1.

On the other hand, the tip 3 is made of an appropriate metal material such as titanium-nickel alloy, and one end side is fixed to the rim 2 by brazing or spot welding, and at the free end side,
A hinge mechanism 6 for rotatably supporting the base end side of the temple 5 is formed (see FIG. 2).

Further, the temple 4 is made of a conventional metal material such as titanium / nickel alloy and the like, and the modern (earpiece) 7 is attached to the free end side thereof like the wisdom 3.

On the other hand, the connecting member 5 is composed of a connecting screw of an appropriate size, and has rim holes 2a, 2a formed in the rim 2.
From the outer side of the eyeglass lens 1 is detachably screwed into blind holes 1a formed in the outer peripheral end surface of the spectacle lens 1.

In the lens holding structure of the present invention constructed as above, the rim 2 is fitted to the upper edge of the spectacle lens 1,
Then, rim holes 2a, 2 aligned with the blind holes 1a, 1a
Both members can be easily attached only by screwing the connecting member 5 to a.

Therefore, even in the case of nyroll eyeglasses, the conventional wire rod is not necessary and it is not necessary to form the concave groove on the peripheral end surface of the spectacle lens 1, so that the number of parts can be reduced and the number of assembling steps can be simplified. As a result, the spectacle lens can be assembled and held more easily and firmly than the conventional nyroll spectacles.

Next, a second embodiment of the spectacle lens holding structure according to the present invention will be described with reference to FIG. To facilitate understanding, the same parts as those in the first embodiment are denoted by the same reference numerals, and only the parts having different configurations will be described with new numbers.

FIG. 5 is an explanatory view showing how to mount the spectacle lens 1 and the rim 2 on the inner peripheral surface of the rim 2.
6 is projected. The rim 2 is made of a flexible metal material such as titanium / nickel alloy, and is formed smaller than the outer diameter of the lens shape of the spectacle lens 1. The eyeglass lens 1 can be held more firmly by cooperation with the projections 6 and 6.

That is, by fitting the projections 6 and 6 projectingly provided on the inner peripheral surface of the rim 2 and the blind holes 1a and 1a of the spectacle lens 1, it is possible to prevent the both from easily slipping off or coming off. In addition, since the upper edge of the spectacle lens 1 is gripped by the flexible force of the rim 2, in other words, unless the rim 2 is expanded outwardly against the flexible force of the rim itself, Since the projections 6 and 6 do not come off from the blind holes 1a and 1a, both (the spectacle lens 1 and the rim 2) are firmly connected and held.

It should be noted that the present invention is not limited to these embodiments, but can be freely modified within the scope of the present invention, and the present invention covers all of them. For example, in the present embodiment, only so-called Nyroll eyeglasses are described, but the present invention is not limited to this and can be applied to a lens holding structure of frame-type eyeglasses, and the present invention includes all of these. To include.

The number of the projections 6 and 6 is not limited to that of this embodiment, and can be increased or decreased as necessary, and the blind holes 1a, 1a and the projections 6 are bonded to each other. It goes without saying that both can be more firmly attached via the agent.

[0025]

According to the spectacle lens holding structure of the present invention constructed as described above, the connecting member protruding from the local portion of the spectacle component is fitted into the hole or recess formed in the spectacle lens in a predetermined shape. By combining and firmly holding the spectacle lens, it is possible to reduce the number of parts and simplify the number of assembling steps because the conventional wire rod is unnecessary and it is not necessary to form the concave groove on the peripheral end surface of the spectacle lens. It has an excellent effect.

Further, by extension, the connecting member is provided with a connecting screw screwed from a connecting hole formed at a local portion of an eyeglass component such as the rim to a blind hole recessed in an outer peripheral end surface of the eyeglass lens. If used, the blind hole and the connecting hole (rim hole) which are aligned with each other when the spectacle lens such as the rim is fitted to the spectacle lens
In addition, by simply screwing the connecting screw, both can be easily and firmly attached.

Further, the connecting member comprises a protrusion protruding from the inner peripheral end surface of the rim or frame, and is a blind hole recessed into the outer peripheral end surface of the spectacle lens by the flexibility of the rim or frame itself. If the rim or frame is expanded outwardly, the spectacle lens can be easily attached by simply pushing it in to align the blind hole with the protrusion, and the rim or frame can be easily attached. Since the eyeglass lens is more firmly held by the flexible force, the eyeglass lens is more firmly held by the cooperation of the flexible force of the rim itself and the fitting action of the protrusion and the blind hole. It has an effect of being able to.

Therefore, the projections provided on the inner peripheral surface of the rim or the like and the blind holes of the spectacle lens are fitted with each other to prevent easy displacement and slipping out of the both.
Since the upper edge side of the spectacle lens is gripped by the flexibility of the rim itself, in other words, unless the rim is pushed outward against the flexibility of the rim itself, the protrusion is Both (spectacle lens and rim) because they do not come out of the blind hole
Can be firmly connected and held.

As described above, according to the present invention, it is possible to easily and firmly attach and detach the spectacle lens, and to provide a spectacle lens holding structure which is not deteriorated even when used for a long period of time, and has a simple structure. Therefore, it is suitable for mass production and can be supplied to customers as a low price.

[Brief description of drawings]

FIG. 1 is a front view of nyroll eyeglasses (first embodiment) using a spectacle lens holding structure according to the present invention.

FIG. 2 is a perspective view showing a state in which a temple of the glasses is expanded.

FIG. 3 is an explanatory diagram showing a main part of a spectacle lens portion.

FIG. 4 is an explanatory diagram showing how to attach an eyeglass lens and a rim.

FIG. 5 is an explanatory view showing a second embodiment of the spectacle lens holding structure according to the present invention.

FIG. 6 is an explanatory view showing a lens holding structure of conventional Nylor glasses.

[Explanation of symbols]

 1 Eyeglass lens 1a Blind hole (connecting hole) 2 Rim 2a Rim hole 3 Ji 4 Temple 5 Connecting member 6 Hinge mechanism 7 Modern

Claims (3)

[Claims] 1. A spectacle lens holding structure for removably holding a spectacle lens on a spectacle component including a rim, a frame, etc., from a local portion of the spectacle component to a hole or a recess formed in the spectacle lens in a predetermined shape. An eyeglass lens holding structure, wherein a protruding connecting member is fitted to firmly hold an eyeglass lens. 2. The connecting member is a connecting screw screwed from a connecting hole formed in a fixing portion of the spectacle component into a blind hole recessed in an outer peripheral end surface of the spectacle lens. The spectacle lens holding structure according to claim 1. 3. The blind member, wherein the connecting member comprises a protrusion protruding from an inner peripheral end surface of a rim or a frame, and is recessed in an outer peripheral end surface of a spectacle lens by a flexible force of the rim or the frame itself. The spectacle lens holding structure according to claim 1, wherein the holding structure is press-fitted to the.