JP2000019458A - Fastening sleeve parts of spectacle lens and mechanism for fastening lens of rimless spectacles using the same parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fastening sleeve parts of a spectacle lens which can surely fasten a lens with a very simple constitution without using a screw at all, and a mechanism for fastening the lens of a rimless spectacles using the fastening sleeve parts. SOLUTION: The fastening sleeve parts 3, in which a collar part 31 is provided at a base end part thereof and a retaining projection 32 is formed at a top end part of an outer periphery of a tube, is inserted and fitted into a fastening hole 11 provided near the periphery of the lens 1. Further, the collar part 31 is brought into contact with the lens surface and at the same time, the retaining projection 32 is retained at an edge part of the fastening hole 11. The lens 1 and an end piece 4 or a bridge are fastened and joined by inserting an inserting projection 21 formed at a part facing the lens of the endpiece 4 or the bridge into an inserting hole 30 of the fastening sleeve parts 3 in a strictly fitting state. Since a screw in not used, shaking of the lens caused by screw loosing, etc., is eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing sleeve part for a spectacle lens, a lens fixing mechanism for rimless spectacles using the same, and more particularly, to a lens having a very simple structure without using screws. The present invention relates to a fixing sleeve part of a spectacle lens that can be fixed securely, and a lens fixing mechanism of rimless spectacles using the fixing sleeve part.

[0002]

2. Description of the Related Art Recently, spectacles having a wide field of view, light weight, and a clear design are gaining popularity. In particular, bridge parts for connecting a pair of lenses symmetrically and ear temples are freely foldable. The so-called "rimless glasses", which eliminates the need for a rim surrounding the lens by directly screwing and connecting an end piece part pivotally supported to a lens to a fastening hole formed near the periphery of the lens, are very popular.

However, conventional rimless glasses include:
There is a problem that the part that is inserted into the fixing hole and screwed is immediately loosened due to loosening or wear of the screw. Further, in the conventional rimless glasses, a support piece is attached to each of the bridge component and the end piece component to be screwed and connected, and the support piece is brought into contact with the lens side face to prevent the rotational displacement of the screw portion. Although the rimless glasses have a very simple structure, bridges and end pieces are often deformed due to the concentration of external force, and such support parts and the side of the lens are deformed by such deformation of the parts. The contact state was insufficient, and the screwed lens fixing portion was easily loosened.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned disadvantages of the conventional method for fixing a lens of rimless spectacles, and is extremely simple without using any screws. It is a technical object of the present invention to provide a fixing sleeve part of a spectacle lens capable of securely fixing a lens with a configuration, and a lens fixing mechanism of rimless spectacles using the fixing sleeve part.

[0005]

In order to solve the above-mentioned technical problems, the present invention is to form a lens 1 having a fastening hole near the periphery and a lens facing portion of an end piece 4 or a bridge 5. A fastening part 3 made of synthetic resin for fastening and connecting the insertion projection to the insertion projection, the insertion projection 30 having an insertion hole 30 into which the insertion projection can be inserted, and having a cylindrical shape. Department
A locking projection 32 is formed on at least the distal end of the outer periphery of the cylinder. The fastening part 3 is inserted into a fastening hole of the lens 1, and the flange 31 is attached to the lens. The lens 1 and the end piece 4 or the bridge are inserted into the insertion hole 30 by tightly inserting the insertion protrusion into the insertion hole 30 by bringing the engagement projection 32 into engagement with the edge of the fixing hole. A technical means of fastening and connecting 5 and 5 was adopted.

Further, in order to solve the above-mentioned problem, the present invention employs a means in which a slit 33 is formed in the longitudinal direction in addition to the above-described means as necessary.

In order to solve the above problems, the present invention further provides a lens 1 having a first fixing hole 11 and a second fixing hole 12 near the periphery;
And a take-out part 2 having a first insertion protrusion 21 and a second insertion protrusion 22 on the distal end side; and the insertion protrusions 21 and 22 of the take-out part 2 are inserted. A fastening sleeve part made of synthetic resin in which a possible insertion hole 30 is opened to form a cylindrical shape, a flange portion 31 is provided at a base end portion, and a locking projection 32 is formed at least at a distal end portion of the outer periphery of the tube. The fixing sleeve part 3 is inserted into the first fixing hole 11 of the lens 1, the flange 31 is brought into contact with the lens surface, and the locking projection 32 is formed. At the same time, the first insertion projection 21 of the take-out part 2 is inserted into the insertion hole 30 of the fastening sleeve part 3 in a tightly fitted state. The lens 1 and the end piece 4 or the bridge 5 are connected by inserting the second insertion projection 22 of the take-out component 2 into the second fastening hole 12 of the first component 1. It adopted the technical means that wearing consolidated.

Further, the present invention provides a fastening sleeve component 3 in addition to the above-mentioned means, if necessary, in order to solve the above-mentioned problems.
The technical means that the slit 33 is formed in the longitudinal direction of the substrate is adopted.

Furthermore, in order to solve the above-mentioned problems, the present invention may further include the first insertion projection 21 or the second insertion projection 22 of the take-out part 2 for reciprocating the wire rod. A technical means that the part 2 is formed by bending and the take-out part 2 is formed of a continuous wire is adopted.

[0010]

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 a partial front view of the rimless glasses to which the fastening sleeve component of the present embodiment is applied, FIG. 2 is a partial side view of the rimless glasses, FIG. 3 is an enlarged perspective view of the fastening sleeve component of the present embodiment, FIG. 4 is an exploded perspective view of the lens fastening mechanism of the present embodiment, FIG. 5 is a partially enlarged sectional view of the lens fastening mechanism, and FIG. 6 is a partially enlarged sectional view of a lens fastening mechanism of a modified example according to the present invention. It is.

As shown in FIGS. 1 and 2, the fastening sleeve part 3 of the present embodiment comprises a pair of left and right lenses 1 and 4 having a temple 7 foldably connected via a hinge 6. A bridge 5 having a nose pad (not shown) is fixedly connected to each outer edge of the pair of left and right lenses 1.1.

In the figure, what is indicated by reference numeral 1 is a spectacle lens made of synthetic resin.
The first fastening hole 11 and the second fastening hole 12 are opened vertically two by two.

In the drawing, reference numeral 2 designates take-out parts formed by taking out from the lens facing portion of the end piece 4 and the lens facing portions at both ends of the bridge 5, respectively. As shown in FIG. 4, the projecting part 2 includes a second insertion projection 22 formed by projecting a wire rod in a reciprocating manner, and
The first insertion protrusion 21 is formed by bending the second insertion protrusion 22 in the same direction as the second insertion protrusion 22, and a connecting portion 23 that connects the second insertion protrusion 22 and the first insertion protrusion 21 is provided.

The take-out part 2 of the present embodiment is formed integrally with the end piece 4 and the bridge 5 by bending a single continuous metal wire. Each component of the second second insertion protrusion 22, the connecting portion 23, and the first insertion protrusion 21 is also continuously and integrally formed of a metal wire in this order.

In the drawing, what is indicated by reference numeral 3 is a fastening sleeve part made of a synthetic resin which is elastically deformable and flexible. As shown in FIG. 3, the fastening sleeve part 3 of the present embodiment
An insertion hole 30 into which the first insertion projection 21 of the take-out component 2 can be inserted is formed at the center of the end surface to form a cylindrical shape, and a base end of which has a flange portion to be brought into contact with the front surface of the lens. 31 are formed, and a plurality of locking projections 32, 32,... To be locked to the edge of the first fixing hole 11 on the rear surface (eyepiece surface) side of the lens are formed on the distal end side of the outer periphery of the cylinder. Have been. A slit 33 is formed in the longitudinal direction from the flange portion 31 to the distal end side.

The fastening sleeve part 3 is inserted into the first fastening hole 11 of the lens 1 while contracting the slit 33 so that the flange 31 is brought into contact with the front surface of the lens and a plurality of locking projections 32 are provided. .. Are locked on the edge of the first fixing hole 11 on the rear surface (eyepiece surface) side of the lens, and the take-out part is inserted into the insertion hole 30 of the fixing sleeve part 3. When the first insertion projection 21 is inserted in a tightly fitted state, the flange 31 and the locking projection 32 of the fastening sleeve component 3 are moved by the insertion pressure to the lens 1.
Will securely hold the first fastening hole 11 of
The friction force between the inner surface of the insertion hole 30 of the fastening sleeve component 3 and the outer surface of the first insertion projection 21 due to the insertion pressure firmly fixes both the lens 1 and the take-out component. The second first insertion protrusion 21 is securely fastened and connected without play.

As shown in FIG. 4 and FIG. 5, the first insertion projection 21 of the take-out part 2 and the first fixing hole 11 of the lens 1 are formed by using the fastening sleeve part 3 of the present embodiment. At the same time as the fastening connection, the other second insertion protrusion 22 of the take-out part 2 is inserted into the second fastening hole 12 of the lens 1 and inserted, so that the lens 1 and the end piece 4 or the bridge 5 are connected. This makes it possible to securely fasten and connect.

As described above, in the fastening sleeve part 3 of the present embodiment, the fitting sleeve part 3 is inserted into the first fastening hole 11 of the lens 1 and
By simply inserting the first insertion projection 21 into the insertion hole 30 of the fastening sleeve component 3 in a tightly fitted state, the lens can be securely fixed without using any screws. In addition to being very simple, there is no need to worry about loosening of the screw due to vibration or the like, and the lens can be securely fixed without rattling for a long period of time.

Further, the fastening sleeve part 3 of the present embodiment
Are formed of a flexible synthetic resin material, and a plurality of locking projections 32 are formed on the distal end side. Therefore, even when the thickness of the lens 1 changes, the plurality of locking projections 32. The edge of the first fastening hole 11 can be locked by any one of the locking projections 32 of 32... Note that the locking projections that do not lock the edge of the first fastening hole 11 and are left on the distal end side may be cut off as shown in FIG.

On the other hand, in the lens fastening mechanism of the present embodiment, the first insertion projection 21 of the take-out part 2 and the first fastening hole 11 of the lens 1 are formed by using the fastening sleeve part 3. At the same time as the fastening connection, the second insertion projection 22 of the take-out part 2 is
Of the first fastening hole 11 without using a support piece to be brought into contact with the side surface of the lens as in conventional rimless spectacles. 21 can be prevented from rotating.

Further, in the lens fastening mechanism of the present embodiment, the second insertion projection 22 of the take-out part 2 is formed by reciprocatingly bending a wire, and the end piece 4 or the bridge 5 is formed. , The second insertion protrusion 22 of the take-out part 2, the connecting portion 2
3, and the first insertion projection 21 is formed continuously and integrally by one metal wire, so there is no need to perform costly and troublesome brazing joint work, and it is possible to use rimless glasses with an extremely simple design. It can be provided at low cost.

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 description of the appended claims. Changes are possible.

For example, in the above embodiment, the first insertion protrusion 21 of the take-out member 2 and the lens 1
Of the fastening sleeve part 3 'is formed in an elongated shape as shown in FIG. Then, the second insertion protrusion 22 of the take-out member 2 and the second fixing hole 12 of the lens 1 may be fixedly connected by using the fixing sleeve part 3 ′.

Further, the bent portion of the second insertion projection 22 of the above-described embodiment, which is formed by reciprocatingly bending a wire, may be provided with a predetermined interval, so that the bent portion exerts a spring property. . By inserting the second insertion protrusion 22 having the spring property into the second fastening hole 12 in a state of being elastically compressed, the second fastening hole such as the hole positional relationship with respect to the first fastening hole 11 is provided. Severe processing accuracy is no longer required for the opening work of the No. 21 and manufacturing costs can be reduced. Furthermore, since the spring bent portion absorbs external force and shock applied to the eyeglasses, it is easy to damage the lens. The problem of the occurrence of the problem is eliminated.

Further, in the above embodiment, the take-out part 2
Is formed continuously and integrally by one wire, but the present invention is not limited to this, and the first insertion protrusion 21 and the second insertion protrusion 22 of the take-out part 2 are joined by brazing. It is also possible to protrude.

Furthermore, in the above-described embodiment, the first fastening hole 11 and the second fastening hole 12 are vertically arranged near the side edge of the lens 1. Is also possible. Of course, it is also possible to arrange the first insertion protrusion 21 and the second insertion protrusion 22 of the take-out component 2 in a side-by-side state.

[0027]

As described above, according to the present invention, according to the present invention, the lens can be securely fixed without using any screw, and the lens fixing operation becomes very simple, and the vibration and the like are reduced. There is no worry about loosening of the screw, and the lens can be securely fastened without rattling for a long period of time.

[Brief description of the drawings]

FIG. 1 is a partial front view of rimless eyeglasses to which a fastening sleeve component of the present embodiment is applied.

FIG. 2 is a partial side view of the rimless glasses.

FIG. 3 is an enlarged perspective view of a fastening sleeve component of the embodiment.

FIG. 4 is an exploded perspective view of the lens fastening mechanism of the embodiment.

FIG. 5 is a partially enlarged sectional view of the lens fastening mechanism.

FIG. 6 is a partially enlarged cross-sectional view of a lens fastening mechanism according to a modified example of the invention.

[Explanation of symbols]

 Reference Signs List 1 lens 11 first fastening hole 12 second fastening hole 2 take-out part 21 first insertion projection 22 second insertion projection 3 fastening sleeve part 30 insertion hole 31 flange 32 locking projection 33 cut slit 4 end Peace 5 Bridge

Claims (5)

[Claims] 1. A lens 1 having a fastening hole near the periphery.
And a fastening part 3 made of synthetic resin for fastening and connecting the end piece 4 or the insertion projection formed on the lens facing portion of the bridge 5, wherein an insertion hole 30 into which the insertion projection can be inserted is opened. It has a cylindrical shape, and has a flange 31 at the base end,
A locking projection 32 is formed at least at the distal end of the outer periphery of the cylinder. The fastening part 3 is inserted into the fastening hole of the lens 1 to bring the flange 31 into contact with the lens surface. The lens 1 is fixedly connected to the end piece 4 or the bridge 5 by locking the stopper projection 32 to the edge of the stopper hole and inserting the insertion protrusion into the insertion hole 30 in a tight fit. A fixing sleeve part for a spectacle lens, characterized in that: 2. A fixing sleeve part for an eyeglass lens according to claim 1, wherein a slit 33 is formed in a longitudinal direction. 3. A lens 1 having a first fixing hole 11 and a second fixing hole 12 formed in the vicinity of a peripheral edge thereof; Take-out part 2 having insertion protrusion 21 and second insertion protrusion 22
An insertion hole 30 into which the insertion projections 21 and 22 of the take-out part 2 can be inserted is formed to have a cylindrical shape, a flange 31 is provided at the base end, and at least a distal end of the outer periphery of the cylinder. A fixing sleeve part 3 made of synthetic resin and having a locking projection 32 formed on the first fixing hole 11 of the lens 1.
The flange 31 is brought into contact with the lens surface, the locking projection 32 is locked to the edge of the first fastening hole 11, and the insertion hole 30 of the fastening sleeve part 3 is inserted. By inserting the first insertion protrusion 21 of the take-out part 2 into the second fitting projection 12 at the same time as inserting the second insertion protrusion 22 of the take-out part 2 into the second fastening hole 12 of the lens 1, A lens fixing mechanism for rimless spectacles, wherein the lens 1 and the end piece 4 or the bridge 5 are fixedly connected. 4. A lens fastening mechanism for rimless spectacles according to claim 3, wherein a cut slit is formed in a longitudinal direction of the fastening sleeve part. 5. The first insertion projection 21 or the second insertion projection 22 of the take-out part 2 is formed by reciprocatingly bending a wire, and the take-out part 2 is formed of a continuous wire. The lens fixing mechanism for rimless spectacles according to claim 3, wherein the lens fixing mechanism is formed.