JP2002148564A - Spectacles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve manufacturing efficiency of rimless spectacles and to reduce a manufacturing cost by making right and left lenses easily and surely mountable at right and left holding frames of a lens frame. SOLUTION: The right and left holding frames 3 and 3 of the lens frame 5 are mounted at the top edges of the right and left lenses 2 and 2. The holding frames 3 have fitting frame parts 19 to be fitted into grooved parts 11 disposed on the outer peripheries at the top edges of the lenses 2. Both end sides of the fitting frame parts 19 are provided with right and left projecting parts 21 for fitting which are enagageable in a fitted state with recessed parts 15 and 15 for engagement recessed in the inner and outer marginal segments of the lenses 2. The holding frames 3 elastically grasp the lenses 2 form outside and inside in the state that the right and left projecting parts 21 and 21 for engagement are fitted into the right and left recessed parts 15 and 15 for engagement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to eyeglasses in which left and right holding frames are easily attached to an upper edge portion or a lower edge portion of a lens so as to securely hold the lens. .

[0002]

2. Description of the Related Art As conventional eyeglasses, in addition to eyeglasses in which an annularly bent rim holds a lens, eyeglasses as shown in FIGS. a1 and glasses a2 as shown in FIG. 32, which are so-called two-points for directly connecting a yoroi to a lens, and the like are provided.

The eyeglasses a1 shown in FIGS. 30 to 31 are connected to each other by bridging portions inside left and right edge frames c which are bent so as to cover a top edge of a lens b. ,
Further, both end portions j of a cord h fitted in a groove portion g provided in a lower outer peripheral surface f of the lens b are fixed to both outer end portions e of the respective edge frames c. As shown in FIG. 31, the end portion j of the cord h is inserted in a bent state through small upper and lower mounting holes m, m provided on the side surface k of the outer end portion e of the edge frame c. .

The glasses a2 shown in FIG.
Is directly connected to the lens b. The connecting portion p has a curved abutting piece r at the end to abut the peripheral surface q of the lens b, and the The connecting piece t, which protrudes inward and has an insertion hole s at the inner end side, is provided so as to protrude from the contact piece r. The connection of the connecting portion p to the lens b is performed by bringing the contact piece r into necessary contact with the peripheral surface q and aligning the insertion hole s of the connecting piece t with the connection hole v of the lens. The fixing screw w is inserted through the insertion hole s and the connection hole v, and a nut y is screwed into a screw shaft projecting to the other surface side of the lens and tightened, so that the contact with the peripheral surface q of the lens is performed. By the detent action of the piece r, the connecting part p is detented and fixed to the lens b.

[0005]

However, in the case of the former glasses a1, as described above, the outer end portion e of the edge frame c is not provided.
The above-mentioned cord h is inserted into upper and lower small mounting holes m, m provided on the side surface k of
It is necessary to perform very fine manual work such that the end j of the lens must be inserted in a bent state, and in addition, it is necessary to adjust the length of the cord according to the size of the lens. However, there is a problem that time is required, work efficiency is poor, and eyeglass manufacturing costs are increased.

On the other hand, even in the latter case of the glasses a2, as described above, the insertion hole s provided in the connection piece t is connected to the connection hole v of the lens b.
In this case, the fixing screw w must be inserted correctly, and a small nut y must be screwed and tightened to the screw shaft projecting to the other surface of the lens. Also, there was a problem that the assembling of the glasses required time and labor, resulting in poor work efficiency. Further, there is also a problem that the fixing screw w is loosened and the connection state of the connection portion p is apt to rattle.

[0007] The present invention has been developed in view of the above-mentioned problems, and the final assembly of the eyeglasses can be performed easily and efficiently without time and effort. The purpose is to provide eyeglasses that achieve reduction

[0008]

In order to solve the above problems, the present invention employs the following means. That is, a first aspect of the spectacles according to the present invention is a pair of spectacles including a lens frame attached to upper edges of left and right lenses and interconnecting inner parts of a holding frame for holding the lenses. The frame has a fitting frame portion that is unevenly fitted to the upper edge portion of the lens and is restricted from moving in the thickness direction of the lens, and both end portions of the fitting frame portion include the fitting frame portion. An engagement protrusion is provided which can be engaged with an engagement recess formed in the inner and outer edge portions. Further, the holding frame can be elastically expanded, and the lens can be elastically clamped from inside and outside with the left and right engagement projections fitted in the left and right engagement recesses. It is characterized in that it is prevented from coming off.

A second aspect of the spectacles according to the present invention is a pair of spectacles having a lens frame attached to lower edges of left and right lenses and interconnecting inner portions of a holding frame for holding the lenses. The holding frame has a fitting frame portion that is unevenly fitted to the lower edge portion of the lens and is restricted from moving in the thickness direction of the lens, and at both end portions of the fitting frame portion, An engagement projection is provided which can be engaged with an engagement recess formed in the inner and outer edge portions of the lens in a fitted state. The holding frame can be elastically expanded, and the lens can be elastically clamped from inside and outside with the left and right engagement projections fitted in the left and right engagement recesses.
It is characterized in that the holding of the concave and convex fitting is prevented by the holding.

A third aspect of the spectacles according to the present invention is a pair of spectacles having a lens frame attached to upper edges of left and right lenses and interconnecting inner portions of a holding frame for holding the lenses, The holding frame has a fitting frame portion fitted into a groove provided on an outer peripheral surface of an upper edge portion of the lens, and both end portions of the fitting frame portion are recessed at inner and outer edge portions of the lens. An engagement projection is provided that can engage with the provided engagement recess in a fitted state. The holding frame can be elastically expanded, and the lens can be elastically clamped from inside and outside with the left and right engagement projections fitted in the left and right engagement recesses. It is characterized in that the fitting with the fitting frame portion is prevented from coming off.

A fourth aspect of the spectacles according to the present invention is a pair of spectacles having a lens frame which is attached to lower edge portions of left and right lenses and interconnects inner portions of a holding frame for holding the lenses. The holding frame has a fitting frame portion fitted into a groove provided on an outer peripheral surface of a lower edge portion of the lens, and inner and outer edges of the lens are provided at both end portions of the fitting frame portion. An engagement protrusion is provided which can be engaged with the engagement recess formed in the portion in a fitted state. The holding frame can be elastically expanded, and the lens can be elastically clamped from inside and outside with the left and right engagement projections fitted in the left and right engagement recesses. The eyeglasses are prevented from being disengaged from the fitting frame portion.

In each of the spectacles, engagement projections are provided in a plurality of upper and lower stages on both end portions or one end side portion of the fitting frame portion, and the engagement projection portions are provided on edge portions of the lens. It is preferable to provide engagement recesses that can be in a fitted state in a plurality of upper and lower stages. In each of the spectacles, the engaging concave portion is formed as a cutout concave portion formed on the outer peripheral surface of the lens so as to be opened on the front surface and / or the rear surface of the lens, or the lens is formed in the thickness direction. It may be formed as a through hole.

[0013] In the first, second, third, and fourth spectacles, engagement portions formed by helically winding the both end portions of the holding frame so as to form insertion holes whose axes are directed in the front-rear direction of the spectacles. It is configured as a protrusion, and the upper end of the arm holding the pad is inserted into the insertion hole located inside and fixed by the insertion hole, while a temple is inserted into the insertion hole located outside. It is preferable to insert the tip portion of the connecting yoroi and fix it at the insertion hole.

In each of the spectacles, it is preferable that the lens frame formed by connecting the inner parts of the left and right holding frames to each other is formed by bending a wire rod in a series.

In the first, second, third, and fourth spectacles, the lens frame formed by connecting the inner portions of the left and right holding frames is formed by appropriately bending a holding frame base material obtained by laser cutting a metal plate. May form.

In the first, second, third and fourth glasses, the holding frame may be formed of a resin material.

[0017] The engagement recess may be formed on the surface of the lens and / or
Or when formed as a notch-shaped concave portion opened on the back surface, the left and right engaging projections fitted in the left and right engaging concave portions are resiliently opened by the holding frame. In order to prevent the fitting frame portion from coming off from the concave portion, it is preferable to connect both end portions of the fitting frame portion to each other with a slip-off preventing piece. The mode of connection between the both end portions includes the connection between the left and right engagement protrusions and the connection between the portions near the left and right engagement protrusions.

The detachment preventing piece is made of metal, resin or the like. Further, it is preferable that the detachment prevention piece is arranged along the edge of the lens. Further, it is preferable that an end portion of the detachment preventing piece is fixed to the engaging projection by a screw.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. [First Embodiment] In FIGS. 1 and 2, an eyeglass 1 according to the present invention is mounted on upper edges of left and right lenses 2, 2 and inside holding frames 3, 3 for holding the lenses 2, 2. A lens frame 5 is formed by connecting the parts with each other via a bridge portion 4. Temples 7, 7 are connected to outer portions of the left and right holding frames 3, 3 via an L-shaped bent yoke 6. In addition, upper ends of the arms 10 for holding the pads 9 are connected to the inner portions of the left and right holding frames 3 and 3.

As shown in FIG. 3, the lens 2 is provided with a groove 11 which is continuous in a circumferential direction of an outer peripheral surface 17.
At a position slightly above the inner and outer edge portions 12 and 13, engagement recesses 15 and 15 are formed in the outer peripheral surface 17. In the present embodiment, the engagement concave portion 15 is formed as a cut-out concave portion that opens continuously on the front and back surfaces of the lens 2 in the thickness direction of the lens 2.

As shown in FIG. 3, the holding frame 3 is formed by appropriately bending a single wire having a spring property, for example, a stainless steel wire, as shown in FIG. A fitting frame 19 is fitted into the groove 11 provided on the outer peripheral surface 17 of the portion 16. As shown in FIGS. 3 to 5, both end portions of the fitting frame portion 19 are spirally wound so that the axis L forms an insertion hole portion 20 facing the front-back direction of the glasses. The engagement projection 21 is a slightly long one, and can be engaged with the engagement recess 15 in a fitted state as shown in FIGS.

In the free state, the holding frame 3 having such a configuration is slightly narrowed inward as shown in FIG. 6, and an interval A1 between the left and right engaging projections 21 and 21 is provided on the lens. The distance A2 between the left and right engagement recesses 15 is slightly smaller than the distance A2. As shown in FIG. 7, the holding frame 3 can be elastically expanded so that the interval between the left and right engagement protrusions 21 and 21 is increased. As shown in FIG.
5 has a spring property to elastically clamp the lens 2 from inside and outside when it is fitted in the lens 5.

As shown in FIGS. 3 and 4, the bridge portion 4 has left and right fitting frame portions 19, 19 at both ends thereof.
The connecting projections 22, 22, which are inserted from the front side into the insertion holes 20, 20 of the engaging projections 21a, 21a provided on the inner end side portion of the connector, are bent. As shown in FIG. 8, the projecting length of the connecting projection 22 is
Of the left and right connecting projections 2
2, 22 are left and right insertion holes 20, 20 at front portions 23,
In a state where the bridge portion 4 is inserted into the bracket 23, both ends of the bridge portion 4 are brazed to the left and right engagement protrusions 21a. The bridge portion 4 is formed slightly thicker in consideration of necessary strength.

The arm 10 holding the pad 9
As shown in FIGS. 3 and 4, an engagement protrusion 21 provided on an inner end portion of the fitting frame portion 19 is provided at an upper end portion thereof.
A connecting projection 25 inserted into the insertion hole 20 of a from the rear side is bent. The connecting projection 25
Is set to be slightly less than half the length of the insertion hole 20, and the connecting projection 25 is connected to the rear portion 26 of the insertion hole 20.
The upper end of the arm 10 is brazed to the engaging projection 21a.

The insertion hole 20 of the engaging projection 21b provided at the outer end of the right and left fitting frames 19,19.
As shown in FIGS. 3, 5, and 9, a connecting projection 27 bent at the front end of the yoke 6 can be inserted from the front side, and the connecting projection 27 is inserted into the insertion hole 20. In the squeezed state, the front end of the yoke 6 is set to the outer engagement protrusion 21.
b. The pivot 29 formed in the yoke 6 is formed into a shaft hole 3 provided on the front end side of the temple 7.
The temple 7 can be opened and closed by being inserted through the “0”.

As shown in FIG. 7, the left and right holding frames 3 and 3 of the lens frame 5 having such a configuration are elastically opened so that the left and right engaging projections 21 and 21 are slightly separated from each other. In this state, as shown in FIGS. 2 and 10, the fitting frame 19 is fitted into the groove 11 at the upper edge of the lens 2,
The left and right engagement projections 21 and 21 are provided with the left and right engagement recesses 15,
15. In this state, the holding frame 3
The left and right engaging projections 21 and 21 elastically clamp the lens 2 from inside and outside due to the elastic restoring action of the eyeglasses, whereby the left and right holding frames 3 and 3 hold the lenses 2 and 2 as shown in FIG. 1 will be configured. The holding prevents the groove portion 11 from being disengaged from the fitting frame portion 19, and thus restricts the movement of the fitting frame portion 19 in the lens thickness direction.

When replacing the lens, the left and right holding frames 3 and 3 are elastically expanded to release the engagement between the engaging projections 21 and the engaging recesses 15, and the lens 2 is removed from the holding frame 3. Remove.

FIG. 11 shows the opposite of the above description, in which the holding frame 3 is provided with a groove 11 provided on the outer peripheral surface 17 of the lower edge portion 31 of the lens 2.
1 shows the eyeglasses 1 configured to include a fitting frame portion 19 to be fitted into the eyeglasses. The other parts of the configuration of the glasses 1 are the same as those described above.
And engagement projections 21 and 21 which can be engaged with engagement recesses 15 and 15 which are recessed at left and right edge portions. The engaging projections 21 and 21 are spirally wound and have the insertion holes 20 in the same manner as shown in FIGS. 3, 8 and 9. , 20 in the same manner as described above, the connecting protrusion of the bridge portion 4, the connecting protrusion of the arm, and the connecting protrusion of the armature 6 can be fixed in the inserted state, respectively.

[Second Embodiment] FIGS. 12 and 13 show another embodiment of the spectacles 1 according to the present invention, wherein the lens frame 5 is formed by laser cutting the holding frame shown in FIG. The base material 32 is configured to be appropriately bent.

The holding frame substrate 32 is, as shown in FIG.
For example, it is formed by laser cutting a stainless steel plate having a thickness of about 0.8 mm having a spring property into a required form, and the inner parts of the left and right holding frame forming parts 33 are connected by a bridge forming part 35. ing. And
At the outer portions of the left and right holding frame forming portions 33, 33, projection-forming portions 36, 36 are formed so as to protrude, and at both ends of the holding frame forming portions 33, 33, engagement projection forming portions 3 are formed.
7, 37 are provided. The bridge forming part 3
Arm forming portions 39, 39 are protruded in parallel at the portions near both ends of 5.

The holding frame base material 32 thus formed
The holding frame forming portions 33, 33 are bent as required as shown in FIG. 15, and a holding frame 19 having a fitting frame portion 19 fitted into the groove portion 11 provided on the outer peripheral surface of the upper edge portion of the lens 2. 3 and the left and right lip-forming portions 36,
36 is bent as required to form yoroids 6,6. Further, the bridge forming portion 35 is bent as required to form the bridge portion 4.
And the left and right arm forming portions 39, 3
The arm 9 is bent as required to form the arms 10 and 10. After each part is bent as required, a required heat treatment is performed to increase the overall hardness. To configure the glasses 1 shown in FIGS. 12 and 13 using the lens frame 5 having such a configuration, FIG.
As shown in FIG. 6, the holding frame 3 is elastically opened so that the left and right engaging projections 21 and 21 are slightly separated from each other.
As shown in FIG. 17, the fitting frame 19 is
The engagement protrusions 21 and 21 formed by the engagement protrusion formation portions 37 and 37 are fitted into the grooves 11 of the upper edge portion of the lens 2.
Are fitted in the left and right engagement recesses 15, 15. In this state, the left and right engaging projections 21 and 21 elastically hold the lens 2 from inside and outside by the elastic restoring action of the holding frame 3, whereby the left and right holding frames 3 and 3
Thus, the glasses 1 holding 2 are configured.

When replacing the lens, the left and right holding frames 3 and 3 are elastically expanded to release the engagement between the engaging projections 21 and the engaging recesses 15. Remove.

Also in this case, as shown in FIG.
A groove 11 provided on the outer peripheral surface of the lower edge portion of the lens 2.
It may be configured to include a fitting frame portion 19 to be fitted into the frame.

[Other Embodiments] (1) FIG. 19 shows that engagement recesses 15 and 15 are formed in the upper and lower portions of the inner and outer edge portions of the lens 2 and the holding frame 3 The upper and lower engaging recesses 1 are provided at both end portions of the portion 19.
Upper and lower engaging projections 21, which can be engaged with the fittings 5, 5, 15 in a fitted state;
21 is provided. As described above, by engaging the upper and lower engaging projections 21 and 21 with the upper and lower engaging recesses 15, 15, the attachment strength of the lens 2 to the holding frame 3 can be improved. When the engagement concave portions are provided above and below the edge portion, the upper and lower engagement concave portions may be provided on any one of the inner and outer edge portions of the lens.

(2) The fitting frame 19 to be fitted in the groove provided on the outer peripheral surface of the lens is not only fitted in the groove 11 in its entirety, but is also fitted in the groove 11 so that the fitting frame 19 As long as the position regulation in the thickness direction is performed, the fitting frame portion is not limited to the entire fitting frame portion to be fitted into the groove portion 11. For example, a protrusion fitted into the groove portion provided on the outer peripheral surface of the upper edge portion of the lens. May be provided at required intervals.

(3) FIGS. 20 to 22 show the case where the holding frame 3 is made of plastic.
Has a fitting frame 19 provided with a fitting groove 40 for fitting the upper edge portion 16 of the lens 2.
At both ends of the lens 9, engagement projections 21, 21 which can be engaged with engagement recesses 15, 15 formed in the inner and outer edge portions of the lens 2 are provided. The holding frame 3 can elastically hold the lens 2 from inside and outside with the left and right engagement projections 21 and 21 fitted into the left and right engagement recesses 15 and 15 in a fitted state. The clamping prevents the upper edge portion 16 from being disengaged from the fitting frame portion 19, and thus restricts the movement of the fitting frame portion 19 in the lens thickness direction. When replacing the lens, the holding frame 3 is elastically expanded so that the left and right engagement projections 21 and 21 are disengaged from the left and right engagement recesses 15 and 15, and the lens 2 is removed from the holding frame 3. FIGS. 23 to 25 show another embodiment in which the holding frame 3 is made of plastic, and the ridge 41 fits into the groove 11 provided on the outer peripheral surface 17 of the upper edge portion 16 of the lens 2. Frame portion 19 provided on substrate 42
The lens 2 is provided at both ends of the fitting frame portion 19.
And engagement projections 21 and 21 which can be engaged with engagement recesses 15 and 15 which are recessed at the inner and outer edge portions of the body. The holding frame 3 can elastically hold the lens 2 from inside and outside with the left and right engagement projections 21 and 21 fitted into the left and right engagement recesses 15 and 15 in a fitted state. By the pinch,
The engagement between the groove 11 and the fitting frame 19 is prevented from being released, so that the movement of the fitting frame 19 in the lens thickness direction is restricted. When replacing the lens,
The left and right engagement projections 21 and 21 are provided with left and right engagement recesses 15,
The holding frame 3 is elastically expanded so as to be disengaged from the lens 15, and the lens 2 is removed from the holding frame 3.

(4) The means for fitting the holding frame into and out of the upper edge portion of the lens is not limited to those described in the above embodiment.

(5) The groove portion 11 provided on the outer peripheral surface of the upper edge portion or the lower edge portion of the lens is only required to be able to fit the whole or a part of the fitting frame portion 19.
It does not need to be provided over the entire circumference of the lens.

(6) The lens frame 5 may be formed by appropriately bending a single wire having spring properties. When the lens frame 5 is formed by bending a wire having a spring property, a wire using a beryllium copper alloy, a resin wire, or the like can be used as the wire in addition to the stainless steel wire.

(7) The engagement recess 15 recessed in the inner and outer edge portions of the lens may be a blind hole recessed in the outer peripheral surface 17 of the lens 2. Alternatively, it may be formed as a concave portion (a cutout concave portion) that is opened only on the front surface or the rear surface of the lens and that is provided on the outer peripheral surface of the lens.

(8) The engaging recess 15 is, for example, as shown in FIG.
As shown in the figure, the lens 2 may be formed as a hole 15a penetrating the lens 2 in the thickness direction at the edge. In this case, as shown in FIG. 26, for example, the hole 15 is formed at both end portions of the fitting frame 19 constituting the holding frame 3.
a are provided with pin-shaped engaging protrusions 21 and 21 which can be engaged in an inserted state (fitted state). Then, the left and right engagement projections 2
The distance A1 between the first and second lenses 21 is the distance A between the left and right engagement recesses 15 and 15 (holes 15a, 15a) provided in the lens 2.
It is slightly smaller than 2. The holding frame 3 can be elastically expanded, and as shown in FIG. 27, when the left and right pin-shaped engaging protrusions 21 and 21 are inserted into the left and right holes 15a and 15a, the holding frame 3 is opened. The lens 2 is elastically held from inside and outside. The hole 15a may be formed as a blind hole with a bottom.

(9) FIGS. 28 to 29 show eyeglasses 1 according to the present invention.
In this embodiment, engagement recesses 15, 15 formed in the inner and outer edge portions of the lens 2 are formed in the outer peripheral surface of the lens so as to be opened on the front surface and / or the rear surface of the lens 2. This is related to the case where it is configured as a notch-shaped concave portion, and the engaging protrusions 2 provided at both end portions of the fitting frame portion 19 are provided.
The reference numerals 1 and 21 are connected to each other by a separation preventing piece 43. The detachment preventing pieces 43 are made of metal or resin, and in the present embodiment, the left and right detachment preventing pieces 43, 43 disposed along the upper edge of the lens 2 on the front side of the lens 2, for example.
Are connected to each other by connecting pieces 44, and screw-in holes 47, 47 provided in the left and right engaging projections 21, 21 are screwed into both end portions 46, 46 of each of the detachment preventing pieces 43, 43. Screw insertion holes 50, 50 for inserting screws 49 to be inserted are provided. However, after the left and right engagement projections 21 and 21 are fitted into the left and right engagement recesses 15 and 15, the screw 49 inserted into the screw insertion hole 50 is screwed into the screw hole 47 and tightened. Regarding the left and right holding frames 3, 3,
The left and right engaging projections 21 and 21 are connected to each other by the detachment preventing piece 43. This prevents the holding frame 3 from being elastically opened, so that the lens 2 can be held even when the left and right engaging projections 21 and 21 elastically clamp the lens 2 from inside and outside. It is possible to provide glasses having a stable structure that does not come off the frame 3. The detachment prevention piece 43
May be arranged only on the back side of the lens 2 or on both the front side and the back side in consideration of the design of the glasses. Alternatively, the intermediate portion may be arranged so as to be lifted from the upper edge of the lens. Further, when the fitting frame portion 19 is provided at the upper edge portion of the lens 2, the detachment preventing piece 43 may be provided at the lower edge portion of the lens 2, while the fitting frame portion 19 is provided. When being provided at the lower edge of the lens 2, the detachment preventing piece 43 may be provided at the upper edge of the lens 2. The detachment preventing piece 43 may be arranged in such a manner as not to be along the edge of the lens in consideration of the design of the spectacles as long as it does not hinder the field of view of the lens. As means for connecting the end portion 46 of the detachment preventing piece 43 to the engaging projection 21, other than the screw fixing, means such as pinning, riveting, brazing, bonding and the like can be adopted. In FIG. 29,
Although the left and right detachment prevention pieces 43, 43 are formed in series via the connecting piece 44, the left and right detachment prevention pieces may be independently constituted. In addition, as long as the left and right engagement projections can be prevented from coming off the left and right engagement recesses, the left and right engagement projections may be connected to each other with a slip-off prevention piece, and the left and right engagement projections may be separated from each other. May be connected by a slip-off prevention piece.

[0043]

The present invention has the following excellent effects. (1) The eyeglasses according to the present invention, the left and right holding frames have a fitting frame portion that can be fitted unevenly with the upper edge portion or the lower edge portion of the lens,
In addition, engaging projections are provided at both end portions of the fitting frame portion so as to be able to engage with engagement recesses formed in the inner and outer edge portions of the lens in a fitted state. The lens can be elastically clamped from inside and outside when the abutment portion is fitted into the left and right engagement recesses. Therefore, according to the present invention, the lens frame is prevented from coming off in the thickness direction of the lens by the concave and convex fit between the fitting frame portion and the upper edge portion of the lens. Elastic engagement between the portion and the engagement concave portion provided on the lens prevents the concave-convex fitting from being disengaged, whereby the right and left holding frames securely provide the left and right lenses to provide spectacles. Will be.
Moreover, as in the case of conventional glasses, very fine manual work is required such that the end of the cord must be inserted into the small upper and lower mounting holes in a bent state. This eliminates the need for a troublesome and troublesome work of fixing the lens to the eyeglasses, greatly improving the efficiency of assembling the eyeglasses, and reducing the cost of assembling the eyeglasses. In addition, since the holding frame can be elastically expanded, the lens can be easily replaced by removing the left and right engagement projections from the left and right engagement recesses.

(2) When the lens frame formed by connecting the inner portions of the left and right holding frames to each other is formed by appropriately bending the holding frame base material obtained by laser-cutting a metal plate, the necessary minimum is required. Since the lens frame can be formed by the bending process, mass production of the same model becomes easy.

(3) In particular, when the engaging projections provided at both end portions of the fitting frame are formed in a series by spirally winding the wire forming the fitting frame, a spiral Since the length of the engagement protrusion can be ensured by winding in the shape of a circle, there is an advantage that the engagement with the engagement recess provided in the lens can be stabilized. In addition, the insertion hole formed by spirally winding can be effectively used for connection of the bridge portion, connection of the arm holding the pad, and connection of the yoke, so that a strong connection state can be easily achieved. Can be secured.

(4) In the case where the engaging concave portions are provided at the upper and lower stages in the edge portion of the lens, the state of engagement between the engaging concave portions and the engaging projections can be further stabilized. The fixing strength of the lens to the holding frame can be improved.

(5) In the case where the engagement recesses formed in the inner and outer edge portions of the lens are formed as cutout recesses opened on the front and / or back surfaces of the lens, the left and right engagements provided on the lens are provided. The left and right engaging protrusions provided on the holding frame are engaged with the recess in a fitted state, and both end portions of the fitting frame are mutually engaged, for example, the left and right engaging protrusions or the left and right engaging protrusions. When the configuration in which the adjacent parts are connected by the slip-off prevention pieces is employed, even when the elasticity of elastically clamping the lens from inside and outside is slightly small, the engagement protrusion is formed by the elastic opening of the holding frame. Detachment from the engagement concave portion can be reliably prevented, and it is possible to provide eyeglasses in which the holding frame securely holds the lens.

[Brief description of the drawings]

FIG. 1 is a perspective view showing spectacles according to the present invention.

FIG. 2 is a front view thereof.

FIG. 3 is an exploded perspective view thereof.

FIG. 4 is a partially cutaway perspective view showing an engagement protrusion provided on an inner end portion of the fitting frame portion.

FIG. 5 is a partially cutaway perspective view showing an engagement projection provided on an outer end side portion of the fitting frame portion.

FIG. 6 is a front view showing a free state of a holding frame.

FIG. 7 is a front view for explaining how to attach the holding frame to the lens.

FIG. 8 shows that the connecting protrusion of the bridge portion and the connecting protrusion of the arm holding the pad are inserted into the insertion hole of the engaging protrusion provided on the inner end side of the fitting frame portion, and brazing is performed. It is sectional drawing which shows the state which performed.

FIG. 9 is a cross-sectional view showing a state in which a connecting protrusion of a yoroi is inserted into an insertion hole of an engaging protrusion provided on an outer end side portion of the fitting frame portion and brazed.

FIG. 10 is a cross-sectional view showing a state where a fitting frame is fitted into a groove of the lens.

FIG. 11 is a partial front view showing spectacles formed by fitting a fitting frame portion into a groove provided on an outer peripheral surface of a lower edge portion of the lens.

FIG. 12 is a perspective view showing another aspect of the glasses according to the present invention.

FIG. 13 is a front view thereof.

FIG. 14 is a perspective view showing a holding frame base material constituting the glasses.

FIG. 15 is an exploded perspective view showing the glasses.

FIG. 16 is a front view for explaining how to attach a holding frame constituting the glasses to a lens.

FIG. 17 is a cross-sectional view showing a state where a fitting frame is fitted into a groove of the lens.

FIG. 18 is a partial front view showing spectacles formed by fitting a fitting frame portion into a groove provided on an outer peripheral surface of a lower edge portion of the lens.

FIG. 19 is a partial front view showing spectacles formed by fitting upper and lower engaging projections into upper and lower engaging recesses.

FIG. 20 is a partial front view showing spectacles formed by using a plastic holding frame.

FIG. 21 is a cross-sectional view showing a state where the upper edge portion of the lens is fitted into the fitting groove of the holding frame.

FIG. 22 is a partial perspective view showing a holding frame having a fitting groove.

FIG. 23 is a partial front view showing another mode of eyeglasses constituted by using a holding frame made of plastic.

FIG. 24 is a cross-sectional view showing a state in which a ridge of the holding frame is fitted into a groove of the lens.

FIG. 25 is a partial perspective view showing a holding frame having a ridge.

FIG. 26 is a partial front view showing another aspect of the eyeglasses according to the present invention.

FIG. 27 is a partial perspective view thereof.

FIG. 28 is a front view showing another aspect of the glasses according to the present invention.

FIG. 29 is a partial perspective view of the same.

FIG. 30 is a partial perspective view showing an example of conventional glasses.

FIG. 31 is a partial sectional view thereof.

FIG. 32 is a partial perspective view showing another aspect of the conventional glasses.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Glasses 2 Lens 3 Holding frame 5 Lens frame 6 Yoroi 7 Temple 9 Pad 10 Arm 11 Groove 15 Engagement concave part 19 Fitting frame part 20 Insertion hole part 21 Engagement protrusion part 22 Connection protrusion part 25 Connection protrusion part 27 Connection protrusion part 32 Holding Frame Base Material 33 Holding Frame Forming Portion 35 Bridge Forming Portion 36 Stain Forming Portion 37 Engagement Projection Forming Portion 39 Arm Forming Portion 43

Claims (16)

[Claims] 1. A pair of spectacles comprising a lens frame attached to upper edges of left and right lenses for holding lenses and interconnecting inner parts of a holding frame, wherein the holding frame is an upper edge of the lens. A fitting frame portion that is fitted into and out of the lens so that movement in the thickness direction of the lens is restricted, and a concave portion is provided at both end portions of the fitting frame portion at inner and outer edge portions of the lens. The engaging recess is provided with an engaging projection which can be engaged in a fitted state, and the holding frame can be elastically expanded so that the left and right engaging projections fit into the left and right engaging recesses. A pair of spectacles characterized in that the lens can be elastically clamped from inside and outside in the retracted state, and the clamping prevents the concave / convex fitting from coming off. 2. A pair of spectacles comprising a lens frame attached to lower edge portions of left and right lenses and connecting inner portions of a holding frame for holding the lenses, wherein the holding frame is a lower edge of the lens. It has a fitting frame portion that is fitted unevenly with the portion to restrict the movement of the lens in the thickness direction, and the both ends of the fitting frame portion are recessed at the inner and outer edge portions of the lens. The engaging recess is provided with an engaging protrusion which can be engaged in a fitted state, and the holding frame can be elastically expanded, and the left and right engaging protrusions fit into the left and right engaging recesses. A pair of spectacles characterized in that the lens can be elastically clamped from inside and outside when the lens is stowed, and the clamping prevents the concave-convex fitting from coming off. 3. A pair of spectacles comprising a lens frame attached to upper edges of left and right lenses and interconnecting inner portions of a holding frame for holding the lenses, wherein the holding frame is an upper edge of the lens. A fitting frame fitted into a groove provided on the outer peripheral surface of the portion, and both end portions of the fitting frame are fitted into engagement recesses recessed at inner and outer edge portions of the lens. An engaging protrusion that can be engaged is provided, and the holding frame can be elastically expanded, and the lens can be moved inside and outside with the left and right engaging protrusions fitted into the left and right engaging recesses. The eyeglasses can be elastically clamped from above, and the clamping prevents the groove from being disengaged from the fitting frame. 4. A pair of spectacles comprising a lens frame attached to lower edges of left and right lenses and interconnecting inner portions of a holding frame for holding the lenses, wherein the holding frame is a lens of the lens. It has a fitting frame fitted into a groove provided on the outer peripheral surface of the lower edge portion, and the both ends of the fitting frame are fitted into engagement recesses formed in the inner and outer edge portions of the lens. The holding frame is provided with an engaging projection which can be engaged in a state, and the holding frame can be elastically expanded, and the left and right engaging projections are fitted into the left and right engaging recesses. Eyeglasses which can be elastically clamped from inside and outside of the eyeglasses, whereby the engagement between the groove and the fitting frame is prevented from being disengaged. 5. An engaging projection is provided in a plurality of upper and lower stages on both end portions or one end portion of the fitting frame portion, and the engaging projection is fitted on an edge portion of the lens. The eyeglasses according to any one of claims 1 to 4, wherein engagement recesses that can be in a state are provided in a plurality of upper and lower stages. 6. The notch-shaped concave portion formed in the outer peripheral surface of the lens so as to open on the front surface and / or the rear surface of the lens. 5. The glasses according to any one of the above items 5. 7. The spectacles according to claim 1, wherein the engagement concave portion is formed as a hole penetrating the lens in a thickness direction thereof. 8. Both end portions of the holding frame are formed as engaging projections which are spirally wound so as to form an insertion hole whose axis is oriented in the front-rear direction of the glasses, and are located inside. The upper end portion of the arm holding the pad is inserted into the insertion hole portion, and is fixed by the insertion hole portion, while the tip end portion of the yoke connecting the temple is inserted into the insertion hole portion located outside. The glasses according to any one of claims 1 to 4, wherein the glasses are fixed by the insertion holes. 9. The lens frame according to claim 1, wherein the lens frame formed by connecting the inner portions of the left and right holding frames to each other is formed by bending a wire. glasses. 10. The lens frame formed by connecting the inner portions of the left and right holding frames to each other is formed by appropriately bending a holding frame base material obtained by laser cutting a metal plate. Glasses according to any one of 1 to 7. 11. The glasses according to claim 1, wherein the holding frame is formed of a resin material. 12. The left and right engagement projections fitted in the left and right engagement recesses do not come off from the left and right engagement recesses due to the elastic opening of the holding frame. 7. The spectacles according to claim 6, wherein both end portions of the fitting frame portion are connected to each other by a separation preventing piece. 13. The left and right engaging projections fitted in the left and right engaging recesses do not come off the left and right engaging recesses due to the elastic opening of the holding frame. 7. The pair of eyeglasses according to claim 6, wherein the left and right engaging projections or the portions near the left and right engaging projections are connected to each other by a slip-off preventing piece. 14. The spectacles according to claim 12, wherein the detachment preventing piece is made of metal or resin. 15. The device according to claim 12, wherein the detachment preventing piece is arranged along an edge of the lens.
3. The glasses according to 3. 16. The spectacles according to claim 12, wherein an end of said detachment preventing piece is fixed to said both ends by screws.