JP3397315B2 - Eyeglass frame rim end connection device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rim end connecting device for a spectacle frame, which can surely connect the rim end portions of the spectacle frame to each other and can easily replace a connecting member as an endpiece or a bridge. Is.

[0002]

2. Description of the Related Art As a conventional rim end connecting structure in a spectacle frame in which a temple is openably and closably connected to an outer side of a rim holding a lens, for example, a structure shown in FIG. 20 is generally used. Has been adopted.

In the connecting structure a, an upper joint piece e and a lower joint piece f are brazed to upper and lower end portions c and d of a rim b, respectively, and both joint pieces e and f are vertically arranged. Connect them with a screw g that is inserted with
The front bending piece j of the L-shaped bent armature h is brazed to the front surface portion k of the upper joint piece so as to cover the front surface portions k and m of the upper and lower joint pieces e and f in the connected state. In addition, the temple p is openably and closably connected to the rear end of the end piece h via a hinge n.

With the connecting structure having such a structure, for example, when an accident occurs in which the armor h is bent by accidentally stepping on the eyeglasses with the foot, as described above,
Since it was brazed firmly to the upper joint piece e, it was difficult to separate the end piece h from the joint piece e. Therefore, in such a case, it is considered that the entire spectacles are damaged, and it is uneconomical to purchase new spectacles. If you can separate the armor,
Even when brazing a new armor, when the spectacle frame is made of titanium, it is difficult to braze, and there is a problem that repair cost becomes expensive.

As a result of research conducted in view of the above problems, the inventor of the present invention cannot easily replace the bent and deformed end pieces if the end pieces are detachably attached to the upper and lower joint pieces. I focused on it.

By the way, as such a connection structure of the detachable type, a structure disclosed in Japanese Patent Laid-Open No. 62-33023 has been proposed. As shown in FIGS. 21 to 22, the connecting structure includes upper and lower joint pieces e and f brazed to the upper and lower end portions c and d of the rim b, and both joint pieces e and f.
The armature h is provided so as to be interposed therebetween, and the temple p is openably and closably connected to the rear end of the armature h.

Further, at the front end portions of the upper and lower joint pieces e and f and the end piece h, there are provided an upper concave groove q, a lower concave groove r and an intermediate concave groove s capable of communicating in the vertical direction in a state where the three members are superposed. It was formed respectively. Then, in order to fix the upper end portion c of the rim to the upper concave groove q, the end portion c is fitted into the upper concave groove q, and at this time, the rim lower end portion t makes the upper joint piece e.
While the joint piece e is brazed to the rim b in a state where the lower end u of the rim is projected downward from the lower surface u of the rim, in order to fix the lower end portion d of the rim to the lower groove r, the lower groove r The end portion c was fitted to the rim, and at that time, the joint piece f was brazed to the rim b in a state in which the rim upper end portion v protruded slightly upward from the upper surface w of the lower joint piece f. Further, when the end piece h is sandwiched between the upper and lower joint pieces e and f, the rim lower end portion t and the rim upper end portion v are configured to closely fit in the intermediate concave groove s from above and below. According to the match, the armor h is prevented from rotating. The upper and lower joint pieces e and f and the end piece h are connected to each other with the single screw x inserted through the three members in the state of being prevented from rotating.

[0008]

However, even with the connection structure having the above-mentioned structure, there are the following problems. (1) Now, the spectacles having the above-described connecting structure are accidentally stepped on with a foot, and the stepping causes the eyelash h
Consider a case in which the external force around the screw x acts on the armature h to bend and deform it. As described above, since the rotation of the end piece h is prevented by the lower end portion t of the rim and the upper end portion v of the rim being closely fitted in the intermediate groove s from above and below, the rotation acting on the end piece h is prevented. The external force in the direction acts not only to cause the bending deformation of the armature h but also to deform the rim lower end portion t and the rim upper end portion v which are fitted in the intermediate concave groove s. As a result, the action of the external force is not limited to the deformation of the armature, but also the outer portion y of the rim.
There is a problem in that the entire spectacles are damaged due to deformation of the lens and chipping of the lens.

(2) Further, as described above, since the rim lower end portion t and the rim upper end portion v are closely fitted into the intermediate concave groove s from above and below, the intermediate concave groove having a shape and size suitable for the rim is formed. It is necessary to individually design and manufacture the armor with
There was an uneconomical situation in which we had to prepare many types of Yoroi depending on the type of rim.

(3) Furthermore, when forming the upper concave groove q, the lower concave groove r, and the intermediate concave groove s, it is not possible to form them individually. When the three pieces are integrated by sandwiching the end piece h between the joint pieces e and f of No. 3, there arises a problem that it is difficult to align the three concave grooves. Therefore, these concave grooves sandwich the armature h between the upper and lower joint pieces e and f and integrate the three members with the screw x, and then
It is preferable to form a series of one concave groove at the same time with a rotary cutter in order to form these concave grooves accurately and efficiently.

However, since the members are not prevented from rotating by simply connecting the three members with the single screw x, three concave grooves are formed at the same time unless special rotation preventing means is provided. There was an inconvenience.

It is an object of the present invention to provide a rim end connecting device for a spectacle frame which can solve the above problems all at once while adopting a connecting member separating system.

[0013]

In order to solve the above problems, the present invention adopts the following means. That is, the rim end connecting device of the eyeglass frame according to the present invention (hereinafter referred to as the connecting device),
An upper joint piece and a lower joint piece that are respectively fixed to the upper and lower end portions of the rim, and a connecting member as an end piece between the joint pieces, which acts as a rail or a bridge. The connecting member can be connected with a screw that vertically inserts the three members. An engaging portion that can be in a concave and convex fitting state with the end portion of the connecting member is provided on each of the inner surface sides of the joint pieces that face each other, and in the concave and convex fitting state, both joint pieces are prevented from rotating relative to each other. At the same time, the connecting member cannot be rotated about the axis of the screw, and the connecting member can be removed by releasing the screwed state of the screw and opening both joint pieces. The intermediate portion is characterized by being an easily deformable portion that is more easily deformed by external force than other portions.

In another aspect of the connecting device according to the present invention, an upper joint piece and a lower joint piece which are respectively fixed to upper and lower end portions of a rim, and end portions are sandwiched between the joint pieces. The joint piece is provided with an end piece or a bridge, and the joint pieces can be connected with each other by a screw that vertically penetrates the two pieces. Each of the inner surface sides of the joint pieces facing each other is provided with an engaging portion that can be in a concave-convex fitting state with the end portion of the connecting member,
In the fitted state of the concavo-convex, both joint pieces are prevented from rotating with each other, and the connecting member is not rotatable about the axis of the screw and is not rotatable about the axis of the end portion. Is prevented from falling off, and the joint member can be detached by releasing the screwed state of the screw to open both joint pieces, and the intermediate portion of the joint member is It is characterized in that it is an easily deformable portion that is more easily deformed than the portion.

In a more specific mode of the coupling device according to the present invention, the upper joint piece and the lower joint piece fixed to the upper and lower end portions of the rim, respectively, and the end portions being sandwiched between the joint pieces. And a connecting member as an endpiece or a bridge, and the joint pieces and the connecting member can be connected with each other by a screw that vertically passes through the three members. Then, on each of the inner surface sides of the joint pieces facing each other, an engaging portion formed of a semi-circular concave groove that can be in a concave-convex fitting state with an end portion having a circular cross-section of the connecting member is provided,
In the concave and convex fitting state, both joint pieces are prevented from rotating with each other, the connecting member is prevented from rotating around the axis line of the screw, and the screwed state of the screw is released to open both joint pieces. The connecting member can be detached, and an intermediate portion of the connecting member is a deformable portion that is more easily deformed by external force than other portions.

In another more specific aspect of the connecting device according to the present invention, the upper joint piece and the lower joint piece fixed to the upper and lower end portions of the rim, respectively, and the end portions between both joint pieces are A joint member that is held between them is provided as an endpiece or a bridge, and both joint pieces are connected by a screw that passes through the two in the vertical direction. Then, each of the inner surface sides of the joint pieces facing each other is provided with an engaging portion formed of a concave groove that can be in a concave-convex fitting state with the flat end portion of the connecting member, and in the concave-convex fitting state, Both joint pieces are prevented from rotating with each other, and the connecting member is not rotatable about the axis of the screw and is not rotatable about the axis of the end portion. Engagement protrusions that prevent the end portions from falling off by engaging with engagement groove portions that are continuously provided in the grooves are provided in a protruding manner, and the screwed state of the screws is released to connect both joint pieces. It is characterized in that the connecting member can be detached by opening it, and an intermediate portion of the connecting member is an easily deformable portion which is more easily deformed by external force than other portions.

In each of the connecting devices, the easily deformable portion is preferably formed as a thin portion having a small diameter or a thin portion having a small thickness, which is more easily deformed by an external force than other portions.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. [First Embodiment] Referring to FIGS. 1 to 5, a coupling device 1 according to the present invention includes an upper joint piece 6 and a lower joint piece 7, which are fixed to upper and lower end portions 3 and 5 of a rim 2, respectively. The end piece 9 is sandwiched between the joint pieces 6 and 7
The joint member 10 as the reference numeral 0a is provided, and the joint pieces 6 and 7 and the joint member 10 can be connected by a screw 11 which vertically penetrates the three members. The upper and lower joint pieces 6 and 7 and the end piece 10a are formed of a metal material such as titanium alloy or nickel silver.

As shown in FIGS. 4 to 6, both the joint pieces 6 and 7 are disk-shaped, and the insertion holes 12 and 13 for inserting the screws 11 are formed in the central portions thereof.
Is provided. The lower insertion hole 13 is a screw hole 13a that can be screwed into the screw 11. Further, the fitting groove 1 for fitting the upper and lower end portions 3 and 5 of the rim into the required portions of the outer peripheral portion 14 of the upper and lower joint pieces 6 and 7.
5, 16 are formed in a series of upper and lower. Further, on each of the inner surface sides 19 and 20 of the upper and lower joint pieces 6 and 7 which face each other, a semi-circular concave portion which can be in a concave-convex fitting state with an end portion 9 of, for example, a columnar shape of the connecting member 10 serving as the end piece 10a. An engaging portion 21 including a groove 21a is provided. The semicircular concave groove 21a is opened at the outer peripheral portion 14, and the insertion holes 12 and 13 are opened at the widthwise central portion of the concave groove bottom 22.

Further, in the present embodiment, recesses 23 are provided on the inner surfaces of the upper and lower joint pieces 6 and 7 so as to be recessed around the edges of the fitting grooves 15 and 16. As shown in FIGS. 5 to 7, for example, the recess 23 has a circular outer shape, and both ends 25, 25 of the recesses 23 have both ends 26, 26, 26, 26 of the fitting grooves 15, 16. From the groove bottom 27, 27 side. The size and depth of the recessed portion 23 are set so that the flow of the brazing material in a molten state can be reliably interrupted by a gap 38 described later when brazing as described later.

As shown in FIGS. 1 and 4 to 5, the end piece 10a is bent into an L shape, for example, and its middle portion is easily deformed by external force than other portions. In the present embodiment, the easily deformable portion 29 is formed as a small-diameter portion having a smaller diameter than the other portions. And the front end portion 9 of the end piece 10a
Is formed in the columnar shape, and an insertion hole 30 for inserting the screw 11 is vertically provided therethrough, and the rear end portion of the end piece 10a is provided with a hinge piece 31, at a required vertical interval. 31 is provided.

A hinge piece 35 inserted between the upper and lower hinge pieces 31, 31 is provided at the front end of the temple 33, and the three hinge pieces 31, 35, 31 are connected to each other by the connecting screw 3.
The temple 33 can be opened and closed by being connected at 7. The upper and lower joint pieces 6 and 7 and the end piece 10a having the above structure are integrated as follows. That is, as shown in FIG. 3, the cylindrical end portion 9 of the end piece 10a is fitted into the semi-circular groove 21a, 21a of the upper and lower joint pieces 6, 7 so that the end portion 9 is joined by the upper and lower joints. After being sandwiched by the pieces 6 and 7, the screw 11 is inserted into the insertion holes 12, 30 and 13 which are communicated with each other and the screw 11 is screwed into the screw hole 13a to integrate the three members. And in this integrated state, as shown in FIG. 4, between the inner edges of both fitting grooves 15 and 16,
A gap 38 is formed by the matching of the depressions 23, 23. Then, the end portions 9 of the connecting member 10 and the engaging portions 21 and 21 as the semicircular concave grooves 21a and 21a are in a concave-convex fitting state, so that the upper and lower joint pieces 6 and 7 are prevented from rotating relative to each other. And the connecting member 1
0 is not rotatable around the axis of the screw 11.

Therefore, in order to connect the rim end portions of the spectacle frame to each other by using the connecting device 1 having the above-described structure, the upper and lower ends of the rim 2 are fitted into the fitting grooves 15 and 16 of the upper and lower joint pieces 6 and 7. Fit parts 3 and 5 and braze. The brazing may be performed individually on the upper and lower joint pieces 6 and 7, but in the present embodiment, as shown in FIGS. , The upper and lower joint pieces 6 and 7 and the end portion 9 of the end piece 10a are integrated so that both fitting grooves 15 and 16 are in a communicating state.
The upper and lower end portions 3 and 5 are fitted into the upper and lower fitting grooves 15 and 16, respectively. Therefore, both fitting grooves 1
As shown in FIG. 4, thin brazing materials 41 and 41 having a required area are attached to the inner surfaces of the rims 5 and 16 such as the groove bottoms 27 and 27 by means such as spot welding, and then, the upper and lower end portions 3 of the rim. , 5 into the upper and lower fitting grooves 15 and 16,
In this state, the fitting groove portion is heated as required to the brazing material 4
1, 41 are melted, and this is turned between the outer surface of the end portion of the rim and the inner surface of the fitting groove 42 (FIG. 3), and the upper and lower joint pieces 6, 7 are connected to the upper and lower end portions 3, 3. Braze to 5. When brazing is performed in this way, the flow of the brazing material melted on one fitting groove side is blocked by the gap 38 and does not move to the other fitting groove side. 7 There is no risk of brazing to each other or to the upper and lower ends 43, 43 of the rim. The amount of the brazing material to be stuck is set so that the brazing can be surely performed by the molten brazing material and the flow of the brazing material is surely blocked by the gap 38.

In this brazed state, by removing the screw 11, the upper and lower joint pieces 6 and 7 are opened, and the end portion 9 of the end piece 10a can be removed. Further, in the present embodiment, the end portions 25, 25 of the recessed portion 23 have the ends 26, 25 of the fitting grooves 15, 16.
Since the recesses 26, 26, 26 retreat toward the groove bottoms 27, 27, in the state where the end portions 3, 5 of the rim are brazed in the fitting grooves 15, 16, as shown in FIG. But,
Since the end portions 3 and 5 are completely covered by the side surfaces 45, 45, 46, and 46 and are not exposed on the front side or the side surface side, there is no fear of impairing the aesthetic appearance of the brazed portion.

In the upper and lower fitting grooves 15 and 16, the upper and lower joint pieces 6 and 7 and the end piece 10a are integrated with the screw 11 as described above (in this state, the end portion 9 of the end piece). The upper and lower joint pieces 6 and 7 are prevented from rotating by engagement with the upper and lower semi-circular grooves 21a, 21a), and can be continuously formed by a rotary cutter.

In the state where the rim ends of the spectacle frame are connected to each other using the connecting device 1, the joint pieces 6 and 7 are brazed to the upper and lower end portions 3 and 5 of the rim, but The front end portion 9 is not directly connected to the rim 2, but is only detachably held between the upper and lower joint pieces 6 and 7. Therefore, when an excessive external force is applied to the end portion due to the eyeglasses having the rim end portions connected to each other as stepped on with a foot, as described above, this easily acts on the deformable portion 29 in a concentrated manner, The armature 10a is easily bent and deformed by the easily deformable portion 29. However, since the end piece 10a is not directly connected to the rim 2, unlike the conventional connection structure shown in FIGS. 21 to 22, the external force applied to the end piece 10a does not easily affect the rim, resulting in deformation of the rim. It is possible to effectively prevent such a situation.

As a result, when an excessive external force is applied to the end piece 10a, the end piece may be damaged by the end piece.
It is possible to stop the bending of the eyeglasses only, and it is easy to avoid the fear that the rim may be deformed and the entire spectacles may be damaged.

When the end piece 10a is thus deformed, the screw 11 is removed and the upper and lower joint pieces 6, 6 are removed.
By opening 7, it is possible to separate the endpiece 10a and replace it with a new endpiece, which allows the eyeglasses to be repaired.

[Second Embodiment] FIGS. 8 to 10 show another aspect of the coupling device 1 according to the present invention, and basically the same as in the first embodiment. Have a configuration. The difference from the above is that the connecting member 10 is configured as a bridge 10b, not as an endpiece. That is, the rim 2 has the outer portion 47 as described above.
The present invention relates to a case where the inner side portion 49 is cut off instead of the (indicated in FIG. 1 and FIG. 3). The bridge 10b is bent, for example, in an inverted U shape, and a central portion thereof is an easily deformable portion 29 that is more easily deformed by external force than other portions. The easily deformable portion 29 is formed as, for example, a thin portion having a smaller wall thickness than other portions.

In this case, the upper and lower joint pieces 6,
As shown in FIGS. 10 to 12, 7 is formed in a rectangular plate shape, and inner side edge portions 50 and 51 thereof are provided with fitting grooves 15 and 16 having the same configuration as the above in a vertically communicating state. .
Further, the semicircular groove 21a and the recessed portion 23 are provided in the same manner as described above, and the provision of the recessed portions 23, 23 allows the upper and lower joint pieces 6, 7 to be joined together, As shown in FIG. 10, a gap 38 is formed between the upper and lower fitting grooves 15 and 16. And the bridge 10
As shown in FIG. 11, the end portion 9 of b is formed in, for example, a cylindrical shape, and is inserted into the end portion 9 in a communication state with the insertion holes 12 and 13 provided in the upper and lower joint pieces 6 and 7. A hole 30 is provided.

Therefore, as shown in FIG.
With the end portion 9 of 0b fitted in the upper and lower semicircular concave grooves 21a, 21a, the upper and lower joint pieces 6, 7 are aligned and the screw 11 is inserted into the three communication holes 12, 30, 13.
By screwing this into the screw hole 13a provided in the lower joint piece 7, the upper and lower joint pieces 6, 7 and the end portion 9 of the bridge can be integrated. In this integrated state, the end portion 9 of the bridge and the semicircular groove 21a
With the engaging portion 21 as a concave-convex fitting state, the joint pieces 6 and 7 are prevented from rotating with each other, and the bridge 10b cannot rotate around the axis of the screw 11.

In the same manner as described above, as shown in FIG. 9, the upper and lower end portions 3 and 5 of the rim 2 have the upper and lower fitting grooves 1 respectively.
The upper and lower joint pieces 6 and 7 are brazed to both end portions 3 and 5 of the rim in a state of being fitted in the rims 5 and 16.

In the spectacles in which the left and right rims 2 and 2 are connected by the bridge 10b by using the connecting device 1 having the above-mentioned structure, when an excessive external force acts on the bridge portion due to being stepped on by the foot, Deformable part 2
It is easy to concentrate the load on 9. Moreover, the end part 9 of the bridge
Is not directly connected to the rim 2, it is easy to avoid the risk of the rim 2 being deformed by the action of the external force applied to the bridge 10b.

As a result, it becomes possible to stop the damage of the spectacles due to the bending deformation of the bridge when an excessive external force is applied to the bridge portion. Particularly in the present embodiment, since the bridge 10b is bent in an inverted U shape, the deformation absorption amount is large when an excessive external force acts on the bridge portion. When the bridge is deformed in this way, the screws 11 at both ends of the bridge are removed, and the upper and lower joint pieces 6, 7, 6, 7 are opened, so that the bridge 10
b can be separated and repair of the glasses can be completed by assembling a new bridge.

[Third Embodiment] FIGS. 13 to 16 show another aspect of the connecting device 1 according to the present invention when the connecting member 10 is configured as an end piece 10a. The part 9 is formed in a flat state,
Engaging projections 52, 52 are provided on the left and right ends of the end portion 9 in a protruding manner. Then, on the inner surface sides 19 and 20 of the upper and lower joint pieces 6 and 7 which face each other, there are formed concave grooves for fitting the upper portion 53 and the lower portion 55 of the end portion 9 as shown in FIG. Engagement recesses 56 and 57 are provided, and the left and right engagement projections 5 are provided in the engagement recesses 56 and 57.
Engagement groove portions 59, 59 that can engage with 2, 52 in a fitted state are provided.

However, the end portion 9 and the upper and lower engaging recesses 5 are
When the joint pieces 6 and 7 are fitted into the concave and convex portions, both joint pieces 6 and 7 are prevented from rotating with each other, and
Is not rotatable about the axis of the screw 11 that connects the upper and lower joint pieces 6 and 7, and is also not rotatable about the axis of the end portion 9. Further, the engagement protrusions 52, 52 are engaged with the engagement groove portions 59, 59 to prevent the end portion 9 from falling off.

The other structure is similar to that of the first embodiment, and the same parts are designated by the same reference numerals.

As described above, as shown in FIGS. 15 and 17, with the upper and lower end portions 3 and 5 of the rim fitted in the upper and lower fitting grooves 15 and 16, the upper and lower joint pieces 6 and 6, respectively. 7 is brazed to both end portions 3 and 5 of the rim 2.

[Fourth Embodiment] FIG. 18 shows another embodiment of the connecting device 1 according to the present invention in which the connecting member 10 is formed as a bridge 10b.
The end portion 9 of 0b is formed in a flat state, and engaging projections 52, 52 are provided on the left and right ends of the tip of the end portion 9 in a protruding manner. Then, on the inner surface sides 19 and 20 of the upper and lower joint pieces 6 and 7 that face each other, the upper portion 5 of the end portion 9 is formed.
3 and the lower portion 55 are provided with engaging recesses 56 and 57 which are recessed grooves for fitting in the same manner as shown in FIG. 15, and the engaging recesses 56 and 57 include the left and right engaging protrusions. Part 5
Engagement groove portions 59, 59 that can engage with 2, 52 in a fitted state are provided.

However, the end portion 9 and the upper and lower engaging recesses 5 are
When the joint pieces 6 and 7 are fitted into the concave and convex portions, both joint pieces 6 and 7 are prevented from rotating with each other, and
Is not rotatable about the axis of the screw 11 that connects the upper and lower joint pieces 6 and 7, and is also not rotatable about the axis of the end portion 9. Further, the engagement protrusions 52, 52 are engaged with the engagement groove portions 59, 59 to prevent the end portion 9 from falling off.

The other structure is the same as that of the first embodiment, and the same parts are designated by the same reference numerals.

Then, similarly to the above, the upper and lower joint pieces 6 and 7 are connected to the upper and lower end portions 3 and 5 of the rim 2 with the upper and lower end portions 3 and 5 of the rim fitted in the upper and lower fitting grooves 15 and 16, respectively. Is brazed to.

[Other Embodiments] (1) Inner surface sides 1 of the upper and lower joint pieces 6 and 7 facing each other
When the engaging portion provided on each of 9, 20 is formed as a groove that can be in a concave and convex fitting state with the end portion 9 of the connecting member 10 as an endpiece or a bridge, the groove has a semicircular shape as described above. Besides being formed as a concave groove, it may be formed as a groove portion having various shapes such as a triangular cross section and a quadrangular cross section. Also, the engaging portion 21 is configured as a protrusion that can be fitted into a recess provided in the end portion 9 if it is a concave and convex fitting state with the end portion 9 to prevent the connecting member 10 from rotating. It may be done.

(2) The easily deformable portion 29 provided in the intermediate portion of the connecting member 10 is not only the small diameter portion or the thin portion described above, but also a combination thereof or as a constricted portion, and further, the material is deformed. It can be configured as an easy part or the like.

(3) A screw 11 for connecting the upper and lower joint pieces 6, 7 and the connecting member 10 or for connecting the upper and lower joint pieces 6, 7 to each other is provided with a head 60 as shown in FIG. The screw is relatively large, and the peripheral surface thereof is provided with a slip stopper 61 such as a knurl, so that the screw can be rotated by hand without using a screwdriver or the like.

(4) Contrary to the case shown in FIG. 4, the structure in which the temple is pivotably attached to the rear end portion of the end piece is provided with upper and lower hinge pieces on the side of the temple while It may be configured to have one hinge piece inserted between the upper and lower hinge pieces.

[0047]

According to the connecting device of the present invention, it is possible to stably connect the connecting member as an endowment or a bridge to the rim through the upper and lower joint pieces, and the following excellent effects are obtained. Play. (1) The connecting device according to the present invention is configured such that the connecting member as an endpiece or a bridge is provided with an easily deformable portion that is more easily deformed by external force than other portions, and these connecting members are vertically movable. It is configured to be removable from the joint piece. Therefore, according to the present invention, when an excessive external force is applied to the edge part or the bridge part of the eyeglasses such as when the eyeglasses are erroneously stepped on, the deformation due to the external force is concentrated on the easy-to-deform portion and the other parts such as the rim. There is an advantage that the portion of the eyeglasses is less likely to be deformed, and thus, the entire eyeglass is less likely to be damaged. When the armor or bridge is deformed, the deformed connecting member can be easily replaced by removing the screw and opening the upper and lower joint pieces. As described above, according to the present invention, since only the damaged portion can be replaced and the other constituent portions can be reused as they are, there is an advantage that the eyeglasses can be easily and inexpensively repaired.

(2) Further, according to the present invention, even if the end pieces or bridge are not damaged, they can be replaced. Therefore, by replacing the piece with another end piece or bridge having a different design. , There is an advantage that the eyeglass design can be changed according to the customer's request.

(3) According to the present invention, the end portions of the connecting member as an end piece or a bridge are fitted in engagement with the engaging portions provided on the inner surface sides of the upper and lower joint pieces, and the connecting member is attached to the rim. It is a structure that is not directly connected. Therefore, unlike the conventional connection structure, even if an excessive external force acts on the armor or bridge, the deformation due to the external force does not easily reach the rim, and it is possible to stop only by the deformation of the connecting member, which damages the entire spectacles. There is an advantage that it is hard to invite.

(4) According to the present invention, the end portions of the connecting member and the engaging portions provided on the upper and lower joint pieces are in a concave and convex fitting state,
Moreover, since the upper and lower joint pieces are connected by screws, the upper and lower joint pieces are prevented from rotating with each other via the end portions. Therefore, when the upper and lower joint pieces are provided with fitting grooves for fitting the end portions of the rim, the upper and lower fitting grooves are different from the conventional connection structure in which the upper and lower joint pieces are not prevented from rotating. However, there is an advantage that a series can be formed efficiently and accurately.

(5) Further, in the present invention, since the end portion of the connecting member is provided so as to be sandwiched between the upper and lower joint pieces without being related to the upper and lower end portions of the rim, the conventional connecting structure described above is adopted. As in the above, it is not necessary to provide a special groove for fitting the end portion of the rim on the connecting member side. Therefore, according to the present invention, there is no inconvenience that a connecting member having a fitting groove that matches the size of the rim has to be individually designed and manufactured as in the conventional case, and the connecting member can be used regardless of the size of the rim. There is an advantage that it can be used in combination.

[Brief description of drawings]

FIG. 1 is a partial plan view showing spectacles configured by using a connecting device according to the present invention.

FIG. 2 is a partial perspective view showing a use state of the coupling device according to the present invention.

FIG. 3 is a sectional view thereof.

FIG. 4 is a perspective view showing a coupling device according to the present invention.

FIG. 5 is an exploded perspective view thereof.

FIG. 6 is a perspective view showing an upper joint piece.

FIG. 7 is a plan view showing a state in which an engaging portion of a lower joint piece and an end portion of a connecting member are fitted in concave and convex.

FIG. 8 is a perspective view showing another aspect of the coupling device according to the present invention in its use state.

FIG. 9 is a sectional view thereof.

FIG. 10 is a perspective view showing the connecting device.

FIG. 11 is an exploded perspective view showing the connecting device.

FIG. 12 is a perspective view showing a joint piece on the coupling device.

FIG. 13 is a perspective view showing another aspect of the coupling device according to the present invention.

FIG. 14 is an exploded perspective view thereof.

FIG. 15 is a cross-sectional view showing the usage state thereof.

FIG. 16 is a plan view showing a state in which an end portion of a connecting member is attached to a lower joint piece which constitutes the connecting device.

FIG. 17 is a partial perspective view showing a use state of the connecting device.

FIG. 18 is an exploded perspective view showing another aspect of the coupling device according to the present invention.

FIG. 19 is a perspective view showing another aspect of the coupling device according to the present invention.

FIG. 20 is a perspective view showing a conventional rim end connection structure.

FIG. 21 is an exploded perspective view showing another aspect of the conventional rim end connection structure.

FIG. 22 is a sectional view thereof.

[Explanation of symbols]

1 coupling device 2 rims 3 Upper edge of rim 5 The bottom edge of the rim 6 Top joint piece 7 Lower joint piece 9 end part 10 Connection member 11 screws 15 Fitting groove 16 Fitting groove 21 Engagement part 23 Depression 29 Deformable part

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G02C 5/00 G02C 1/08 G02C 5/02

Claims (5)

(57) [Claims] 1. An upper joint piece and a lower joint piece which are respectively fixed to upper and lower end portions of a rim, and a connecting member as an end piece between the joint pieces, which serves as an endorse or a bridge. The joint pieces and the connecting member can be connected to each other by a screw that vertically passes through the three members, and the inner surfaces of the joint pieces facing each other are connected to each other by the connecting member. An engaging portion that can be fitted into the concave and convex portions with the end portion is provided, and in the concave and convex fitted state, both joint pieces are prevented from rotating together, and the connecting member is not rotatable about the axis of the screw. The connection member can be detached by releasing the screwed state of the screw and opening both joint pieces, and the intermediate portion of the connection member is an easily deformable portion that is more easily deformed by external force than other portions. Has been Rim end coupling device of the eyeglass frame, characterized in that. 2. An upper joint piece and a lower joint piece fixed to upper and lower end portions of a rim, respectively, and a connecting member as an end piece between both joint pieces, which serves as an endorse or a bridge. The two joint pieces can be connected with each other by a screw that vertically penetrates the two members, and the inner surface of the joint pieces facing each other has a concave portion and a convex portion with the end portion of the connecting member. An engaging portion that can be in a fitted state is provided, and in the concave and convex fitted state, both joint pieces are prevented from rotating together, and the connecting member is not rotatable about the axis of the screw and the axis of the end portion. It is also non-rotatable around it, the end portion is prevented from falling off, and the joint member can be detached by releasing the screwed state of the screw and opening both joint pieces. Inside the member Portion, the rim end coupling device of the eyeglass frame, characterized in that there is a easily deformable easily deformable portion than the other portions with respect to an external force. 3. An upper joint piece and a lower joint piece fixed to upper and lower end portions of the rim, respectively, and a connecting member as an end piece between the joint pieces as an end piece or a bridge. The joint pieces and the connecting member can be connected to each other by a screw that vertically passes through the three members, and the inner surfaces of the joint pieces facing each other are connected to each other by the connecting member. An engaging portion composed of a semicircular concave groove that can be in a concave and convex fitting state with an end portion having a circular cross section is provided, and in the concave and convex fitting state, both joint pieces are prevented from rotating with each other and the connecting member is a screw of the screw. It is made impossible to rotate about the axis, and the connecting member can be removed by opening both joint pieces by releasing the screwed state of the screw.
Further, the rim end connecting device of the spectacle frame, wherein the intermediate portion of the connecting member is an easily deformable portion that is more easily deformed by external force than other portions. 4. An upper joint piece and a lower joint piece fixed to upper and lower end portions of a rim, respectively, and a connecting member as an end piece between the joint pieces, which is a joint or a bridge. The joint pieces are connected by a screw that passes through the two in the vertical direction, and the inner surface sides of the joint pieces facing each other are respectively connected to the flat end portion of the connecting member. An engaging portion formed of a concave groove that can be in a concave-convex fitted state is provided, and in the concave-convex fitted state, both joint pieces are prevented from rotating and the connecting member is not rotatable about the axis of the screw. The end portion is also prevented from rotating about its axis, and the tip of the end portion is engaged with an engaging groove portion that is continuous with the concave groove to prevent the end portion from falling off. Engagement projections are projected and The connection member can be detached by releasing the screwed state of the screw and opening both joint pieces, and the intermediate portion of the connection member is an easily deformable portion that is more easily deformed by external force than other portions. A rim end connection device for an eyeglass frame. 5. The easily deformable portion is formed as a small-diameter portion or a thin-walled portion that is more easily deformed by external force than other portions. Device for connecting rim end of eyeglass frame.