JPH10133151A - Lens holding mechanism of spectacles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lens holding mechanism of spectacles which allows the rapid and simple attaching, detaching and exchanging operation of spectacle lenses, does not use screw mechanisms, is simple in constitution and is simple in design as well. SOLUTION: This lens holding mechanism comprises a rim 1 which is projectingly provided with detaining projections 11 for detecting the outer peripheral surface of the lens by fitting to the outer peripheral surface of the lens in the respective required positions at the inner peripheral edge of the rim and a sliding piece 2 which is inserted and disposed advanceably and retreatably in the lens direction within the recessed part 12 of this rim 1 and is projectingly provided with stopping projections 21 to stop the outer peripheral surface of the lens by fitting to the outer peripheral surface of the lens at the lens side end thereof. This sliding piece 2 is moved to the lens side and the lens is held in the rim 1 by the stopping projections 21 and the detaining projections 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens holding mechanism for spectacles, and more particularly, to a quick and easy operation for attaching / detaching / exchanging spectacle lenses. The present invention relates to a simple lens holding mechanism for spectacles.

[0002]

2. Description of the Related Art As is well known, an eyeglass lens is generally attached or detached by inserting and removing a small screw with a pair of rim lock pieces protruding from an outer end of an eyeglass rim.
It was a very difficult task for amateur users who use glasses. For this reason, in ordinary glasses, the fact that the spectacle lens has to be replaced at any time according to the purpose of use has been almost completely abandoned.

However, up to now, some unusual glasses for outdoor use such as sunglasses include:
As the interchangeable lens glasses, a lens receiver is provided at a plurality of locations on the rim toward the front of the glasses, and the lens is detachably hooked there (Japanese Utility Model Application Laid-Open No. 58-23308), or Japanese Patent Laid-Open Publication No. 59-53323 (Japanese Utility Model Application Laid-Open No. 59-53323) proposes a configuration in which a lens is detachably held by using a screw mechanism so as to pinch two positions on the periphery of the lens.

However, in the former eyeglass frame,
The lens receiver must be protruded to the front of the rim, resulting in a design that lacks simplicity and has the disadvantage of increasing costs due to an increase in the number of manufacturing steps.On the other hand, the latter eyeglass frame has a complicated structure In addition to this, when the frame is deformed by an external force, there is a drawback that the lens is chipped especially in the case of a glass lens.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the conventional lens-removable eyeglass frame, and enables quick and easy operation of attaching / detaching / exchanging lenses. It is a technical object of the present invention to provide a spectacle lens holding mechanism that can be used, has a simple structure without using a screw mechanism, and has a simple design.

[0006]

SUMMARY OF THE INVENTION The present invention provides a ring-shaped spectacle rim having an opening adapted to the outer shape of a spectacle lens L to be held. At a required position on the inner peripheral edge of the ring, a latching projection 11 to be engaged with the outer peripheral surface of the lens L to latch the outer peripheral surface of the lens.
A rim 1 having a notch recess 12 formed at another required position on the inner peripheral edge of the ring; and a side of the rim 1 so as to be able to advance and retreat in the lens direction within the recess 12 of the rim 1. A slide body having a slide guide groove 22 formed at an edge thereof, and a fixing protrusion 21 which is fitted to the outer peripheral surface of the lens L and fastens the outer peripheral surface of the lens L to the lens side end. And a slide piece 2 provided;
Is moved closer to the lens side, and the fixing protrusion 21 is fitted to the outer peripheral surface of the lens.
The technical means of holding the lens L in the opening of the rim 1 by the fixing projection 11 and the fixing projection 21 is employed.

In order to solve the above-mentioned technical problem, the present invention provides a ring-shaped spectacle rim having an opening adapted to the outer shape of the spectacle lens L to be held. A rim 1 having notched concave portions 12 at at least two places at required positions; and a slide guide on a side edge portion so as to be able to advance and retreat in the lens direction in each concave portion 12 of the rim 1. A slide member having a groove 22 formed thereon, and a fixing piece 21 projecting from an end of the lens on the lens side to be fitted to the outer peripheral surface of the lens L to fix the outer peripheral surface of the lens. 2 and 2; each of the slide pieces 2 and 2 is moved toward the lens side to move each of the fixing projections.
A technical means is adopted in which the lens L is held in the opening of the rim 1 by the fitting projections 21 21 by fitting the 21 21 onto the lens outer peripheral surface.

Further, according to the present invention, in order to solve the above-mentioned problems, in addition to the above-mentioned means, a fixing convex portion 13 is formed on the inner surface of the concave portion 12 of the rim 1 or in the vicinity of the concave portion 12 in addition to the above means. By forming the fixing concave portion 23 capable of receiving the convex portion 13 on the slide piece 2, the fixing concave portion 23 and the fixing convex portion 13 are engaged when the fixing projection 21 of the slide piece 2 is fitted to the outer peripheral surface of the lens. Then, the technical means of fixing the position of the slide piece 2 in the lens fitting state is adopted.

Further, according to the present invention, in order to solve the above-mentioned problems, in addition to the above-described means, a fixed concave portion is formed on the inner surface of the concave portion 12 of the rim 1 or in the vicinity of the concave portion 12. The fixed protrusion that can be fitted to the
When the fixing projection 21 of the slide piece 2 is fitted to the outer peripheral surface of the lens, the fixed convex portion and the fixed concave portion are engaged with each other to fix the position of the slide piece 2 in the lens fitted state. Technical measures were adopted.

Further, in order to solve the above-mentioned problems, the present invention provides, in addition to the above-mentioned means, the fixing projection 21 and / or the rim 1 of the slide piece 2 to be fitted to the outer peripheral surface of the lens L as necessary. Technical means is adopted in which two latching projections 11 are provided on the lens side so as to be able to hold the outer peripheral edge of the lens.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings. 1 is an overall front view of a disassembled state of the lens holding mechanism of the present embodiment, FIG. 2 is a side view of a slide piece of the lens holding mechanism, FIG. 3 is a front view of the slide piece, and FIG. FIGS. 5 to 7 are cross-sectional views showing the procedure of inserting a lens into the lens holding mechanism of the embodiment, and FIG. 8 is a front view of the lens holding state of the embodiment. FIGS. 9 and 10 are cross-sectional views showing the configuration of a modified example of the lens holding mechanism according to the present invention. FIG. 11 is a front view of a lens holding state of another modified example of the lens holding mechanism according to the present invention. is there.

As shown in FIG. 1, the lens holding mechanism for eyeglasses according to the present embodiment includes a ring-shaped rim 1 and a slide piece 2 which is provided in a recess 12 on the inner peripheral edge of the ring of the rim 1 so as to be able to move forward and backward. It is composed of

The rim 1 of the present embodiment is formed of a metal material, and is formed in a closed ring shape having an opening adapted to the outer peripheral shape of the spectacle lens L to be held (see FIG. 6). On the bridge B side of the inner peripheral edge of the ring of the rim 1, there is provided a projection 11 which is engaged with a groove C formed on the outer peripheral surface of the lens L to engage the outer peripheral surface of the lens. On the other hand, a notched concave portion 12 is formed on the end piece E side of the inner peripheral edge of the ring. In addition, a pin-shaped fixed convex portion 13 protrudes from the rear surface (eyepiece surface) of the rim 1 on the end piece E side near the depth of the concave portion 12.

On the other hand, the slide piece 2 of the present embodiment is formed of a synthetic resin material, and slide guide grooves 22 are formed on both side edges thereof (see FIGS. 2 and 3). It is configured such that it can be inserted and disposed so as to be able to move forward and backward in the lens direction within one concave portion 12. A groove C on the outer peripheral surface of the lens is provided at the end of the slide piece 2 on the lens side.
A fixing projection 21 is provided to project to the opposite side of the slide piece 2 from the back (eyepiece) thereof. 25 is formed to be taken out, and the second protruding piece is
26 are taken out (see FIG. 2). The distance between the first protruding piece 25 and the second protruding piece 26 is adjusted to the thickness of the rim 1 in the recess 12.

The first projecting piece 25 has a slide piece 2
The groove 24 is formed along the direction in which the rim 1 moves forward and backward. In the groove 24, there is formed a fixing recess 23 that can receive the fixing protrusion 13 on the back surface of the rim 1. Also, the second protruding piece 26
The required relief decoration is given to the surface (the front of the glasses).

Due to the presence of the first projecting piece 25 and the second projecting piece 26 which are formed by taking out, the slide guide grooves 22 are formed.
At the same time, it is possible to cover the slide sliding portion between the concave portion 12 and the slide piece 2, thereby preventing the appearance of the spectacles from being impaired by the slide slide portion, and at the same time, the relief decoration on the surface of the second protrusion 26. This enhances the decorativeness of the glasses.

By combining the rim 1 and the slide piece 2 of the present embodiment configured as described above, the lens L is detachably held in the opening of the rim 1. Less than,
The procedure for inserting a lens in the lens holding mechanism of the present embodiment will be described with reference to FIGS.

First, before actually performing the work of fitting the lens L, the slide piece 2 is inserted into the recess 12 of the rim 1 (see FIGS. 4 to 6). That is, the slide piece 2 is elastically deformed while expanding the space between the first protrusion 25 and the second protrusion 26 formed in advance according to the thickness of the rim 1, and the first protrusion 25 is inserted. The slide piece 2 is inserted up to the deepest portion of the concave portion 12 so that the fixed convex portion 13 on the rear surface of the rim 1 extends along the groove 24 (see FIGS. 5 and 6).

When inserting the slide piece 2, the rim 1
The fixed convex portion 13 on the back surface crosses the fixed concave portion 23 of the first protruding piece 25 on the way, and when the slide piece 2 is pushed into the deepest position of the concave portion 12, the slide protrudes in the lens direction. The fastening projection 21 of the piece 2 is retracted into the recess 12 (see FIG. 6).

Next, the operation of fitting the lens L into the opening of the rim 1 is performed while maintaining the inserted state of the slide piece 2 (see FIG. 6). That is, one groove C on the outer peripheral surface of the lens L to be fitted is first fitted into the engaging projection 11 formed on the bridge B side of the rim 1, and then the entire lens L is fitted into the opening of the rim 1. It is.

Thereafter, if the slide piece 2 is moved toward the lens, the lens can be held (see FIGS. 7 and 8). That is, if the slide piece 2 pushed to the deepest position of the concave portion 12 is slightly slid toward the lens L fitted in the rim 1, the fixing projection of the slide piece 2 is made.
21 fits into the groove C of the lens L, and the outer periphery of the lens is fixed by the fixing projection 21 together with the locking projection 11, so that the lens L is fixed and held in the opening of the rim 1. .

In this lens holding state, the fixed convex portion 13 on the back surface of the rim 1 engages with the fixed concave portion 23 of the first protruding piece 25 of the slide piece 2, and the slide piece 2 is positioned in the lens fitted state in the concave portion 12. By being fixed, the lens holding state is maintained and the lens can be reliably held. In this embodiment, the lens removing operation is performed by using the elasticity of the slide piece 2 to increase the distance between the first protruding piece 25 and the second protruding piece 26 while engaging the fixed convex portion 13 and the fixed concave portion 23 with each other. What is necessary is just to remove the relationship and perform the reverse operation of the above-described lens fitting procedure.

As described above, according to the lens holding mechanism of the present embodiment, the fixing projection of the slide piece 2 is provided in the concave portion 12 of the rim 1.
The lens can be attached and detached with only a very simple operation of moving the 21 forward and backward, and a fine and troublesome operation such as fitting and removing small screws on a pair of rim lock pieces protruding from the eyeglass rim like conventional products Without having to do
Even an unskilled spectacle user can quickly and easily perform the attachment / detachment / exchange operation of the lens, and can easily exchange the lens at any time according to the purpose of use. Also,
Since no screws are used, there is no problem that the lens is loosened due to vibration or the like at the time of use and the lens suddenly falls off unlike the conventional product.

Further, the lens holding mechanism of the present embodiment is composed of only the rim 1 and the slide piece 2 and does not use any screw mechanism. Therefore, the configuration is very simple, and the rim lock mechanism is different from the conventional one. Since the parts do not protrude, the design is refreshing. In addition, since the slide piece 2 itself is detachable from the rim 1, for example, it is easy to prepare several slide pieces having different surface relief decorations of the second protruding piece 26 and replace them according to the situation. Can be greatly improved.

Further, in the lens holding mechanism of the present embodiment, the lens L can be securely held by the fixing projection 21 of the slide piece 2 and the locking projection 11 of the rim 1.
Unlike the related art, there is no need to form a rim groove or the like for holding a lens over the entire inner surface of the spectacle rim, which simplifies the manufacturing process and reduces the manufacturing cost.

Since the lens L is not held on the entire circumference of the rim, but is held partially by the fixing projection 21 and the locking projection 11, any external force is applied to the spectacle frame. In such a case, it is possible to appropriately release the impact at a portion other than the fastening protrusion 21 and the hooking protrusion 11, and it is possible to prevent the peripheral portion of the lens from being damaged even when a glass lens is used. .

Although the embodiment which is a specific example of the present invention is generally configured as described above, the present invention is not limited to this embodiment, and various modifications may be made within the scope of the claims. Is possible.

For example, in the above-described embodiment, in order to fix the position of the slide piece 2 in the lens fitting state in the recess 12, the fixed protrusion 13 is formed on the back surface of the rim 1 and the first protrusion 25 of the slide piece 2 is formed. Although the fixing recess 23 is formed on the rim 1, the present invention is not limited to this. For example, as shown in FIG.
The first projecting piece 25 may be formed with a fixed projection 23 '. It is only necessary that the slide piece 2 can be fixed at a predetermined position in the concave portion 12 by engaging these irregularities with each other.

Therefore, these fixed projections (13, 2)
3 '), the formation position of the fixing recesses (23, 13') is not limited to the above-described embodiment. For example, the fixing protrusion 13 is formed on the inner surface of the recess 12 of the rim 1, and the fixing recess 23 is slid. It may be formed inside the slide guide grooves 22 of the piece 2.

Further, in the above embodiment, one hooking projection 11 is provided on the inner circumferential edge of the rim 1 in order to hook and fix the outer circumferential edge of the lens L, and the end of the slide piece 2 on the lens side. One fastening projection 21 is protrudingly provided at the portion, and the fastening projection 11 and the fastening projection 21 are fitted into the groove C on the outer peripheral surface of the lens L. Of course, the invention is not limited to this. Without figure
As shown in FIG. 10, two of these hooking projections 11 and two fastening projections 21 are arranged side by side, and these hooking projections 11
The lens L may be hooked and fastened so as to hold the outer peripheral edge of the lens between them or between the fastening protrusions 21. In this case, since there is no need to form a groove on the outer peripheral surface of the lens L, the processing cost can be reduced.

Further, in the above-described embodiment, the latching projection 11 protrudes from the inner peripheral edge of the rim 1 on the bridge B side.
As shown in FIG. 11, a recess (not shown in FIG. 11) similar to that of the end piece E is formed in place of the engaging projection 11, and the slide piece 2 is moved forward and backward in the recess on the bridge B side. By disposing the lens L as much as possible, the lens L may be fixedly held by the two slide pieces 2. In addition, the arrangement positions of the slide pieces 2 and the engaging projections 11 are not limited to the above-described embodiment, and various design changes can be made in consideration of the design of the entire spectacle frame.

Further, in the above embodiment, the rim 1 is formed of a metal material and the slide piece 2 is formed of a synthetic resin material. However, the present invention is not limited to this. The slide piece 2 may be formed of a metal material as long as it can be elastically deformed to the extent that it can be inserted into the back.
The rim 1 may be formed of a synthetic resin material. Various materials can be selected in consideration of the manufacturing cost and the like of each component.

[0033]

As described in the above embodiments, the lens holding mechanism for spectacles according to the present invention does not use any troublesome screw mechanism and moves the slide piece back and forth within the recess of the rim. The lens can be attached and detached with a simple operation of moving it, so even an amateur eyeglass user can quickly and easily attach and detach the lens, and replace the lens at any time according to the purpose of use Can also be done easily.

Further, in the lens holding mechanism of the present invention, since the components are only the rim and the slide piece, the configuration is extremely simple, and the rim lock component does not protrude unlike the conventional product. So the design is very simple. Moreover, since the slide piece itself can be attached to and detached from the rim, for example, it is easy to prepare several slide pieces with different surface relief decorations and replace them according to the situation, greatly improving the decorativeness of the glasses. It is possible to do.

[Brief description of the drawings]

FIG. 1 is an overall front view of a disassembled state of a lens holding mechanism according to an embodiment.

FIG. 2 is a side view of a slide piece of the lens holding mechanism of the embodiment.

FIG. 3 is a front view of a slide piece of the lens holding mechanism according to the embodiment.

FIG. 4 is a cross-sectional view taken along the line AA in FIG. 1, showing the configuration of the lens holding mechanism of the embodiment.

FIG. 5 is a cross-sectional view showing a procedure of a lens fitting operation of the lens holding mechanism of the embodiment.

FIG. 6 is a cross-sectional view showing a procedure for inserting a lens into the lens holding mechanism according to the embodiment.

FIG. 7 is a cross-sectional view showing a procedure of a lens fitting operation of the lens holding mechanism of the embodiment.

FIG. 8 is an overall front view of a lens holding state of the lens holding mechanism of the embodiment.

FIG. 9 is a cross-sectional view illustrating a configuration of a modified example of the lens holding mechanism according to the present invention.

FIG. 10 is a cross-sectional view showing a configuration of another modification of the lens holding mechanism according to the present invention.

FIG. 11 is an overall front view of a lens holding state of another modification of the lens holding mechanism according to the present invention.

[Explanation of symbols]

 L Lens C Groove (on the outer peripheral surface of the lens) 1 Rim 11 Hanging projection 12 Recess 13 Fixed projection 2 Slide piece 21 Fixing projection 21 22 Slide guide groove 23 Fixed recess

Claims (5)

[Claims] 1. A ring-shaped spectacle rim having an opening adapted to an outer peripheral shape of a spectacle lens L to be held,
At a required position on the inner peripheral edge of the ring, a hooking projection 11 to be fitted to the outer peripheral surface of the lens L to engage the outer peripheral surface of the lens is protruded, and at another required position on the inner peripheral edge of the ring. Is a rim 1 having a cut-out recess 12 formed therein; and a slide body having a slide guide groove 22 formed on a side edge thereof so as to be able to advance and retreat in the lens direction within the recess 12 of the rim 1. A slide piece 2 provided with an attachment projection 21 to be fitted to the outer peripheral surface of the lens L and fixed to the outer peripheral surface of the lens L at the end on the lens side; The lens L is held in the opening of the rim 1 by the locking projection 11 of the rim 1 and the fixing projection 21 by moving the fixing projection 21 close to the lens and fitting the fixing projection 21 to the outer peripheral surface of the lens. Lens holding mechanism for worn glasses. 2. A ring-shaped spectacle rim having an opening adapted to an outer peripheral shape of a spectacle lens L to be held,
A rim 1 having notched recesses 12 formed at least at two required positions on the inner peripheral edge of the ring;
A slide body having a slide guide groove 22 formed on a side edge thereof so as to be able to advance and retreat in the lens direction in each of the concave portions 12 and 12. The outer peripheral surface of the lens L is fitted to an end on the lens side. And a slide piece 2 provided with a fixing projection 21 for fixing the outer peripheral surface of the lens together. A lens holding mechanism for spectacles, characterized in that the lens L is held in the opening of the rim 1 by the fastening projections 21 by fitting the lens 21 to the outer peripheral surface of the lens. 3. The inner surface of the recess 12 of the rim 1 or this recess.
A fixed projection 13 is formed in the vicinity of 12, while the fixed projection 13
Is formed on the slide piece 2 so that when the fastening projection 21 of the slide piece 2 is fitted to the outer peripheral surface of the lens, the fixed recess 23 and the fixed projection 13 are engaged with each other. The lens holding mechanism for eyeglasses according to claim 1 or 2, wherein the position of the slide piece (2) is fixed in a lens fitting state. 4. The inner surface of the recess 12 of the rim 1 or this recess.
When the fixing concave portion is formed in the vicinity of 12 and the fixing protrusion which can be fitted to the fixing concave portion is formed on the slide piece 2 so that the fastening projection 21 of the slide piece 2 is fitted to the outer peripheral surface of the lens. The lens holding mechanism for eyeglasses according to claim 1 or 2, wherein a fixed convex portion and a fixed concave portion are engaged with each other to fix the position of the slide piece 2 in a lens fitted state. 5. A locking projection 21 of the slide piece 2 and / or a locking projection 11 of the rim 1 to be fitted to the outer peripheral surface of the lens L.
Is moved to the lens side so that it can hold the outer peripheral edge of the lens.
The eyeglass lens holding mechanism according to any one of claims 1 to 4, wherein the eyeglass lens holding mechanism is protruded one by one.