KR20190016652A - Non-welding type metal frame - Google Patents

Abstract

The present invention relates to an assembly type eyeglass frame based solely on an assembly type without a welded part in an overall structure of a metal eyeglass frame such that eyeglass manufacturing processes and costs can be reduced and productivity enhancement can be achieved and parts such as lenses can be replaced with ease. According to the present invention, an upper front (110) having an upper left and right half rim (111), an upper half bridge (112), and an upper half hinge (113) and a lower front (120) having a lower left and right half rim (121), a lower half bridge (122), and a lower half hinge (123) are produced in a separated state. The separated upper front (110) and lower front (120) are brought into close contact with each other for a fully eyeglass frame form. At this time, a hinge coupling portion (H) coming into contact between the upper half hinge (113) and the lower half hinge (123) is inserted and coupled with a temple hinge (141) and a stop piece (142) is configured at the same time. A clip type leg (130) formed by steel wire bending is fastened to a bridge coupling portion (B) where the upper half bridge (112) and the lower half bridge (122) come into contact with each other.

Description

[0001] Non-welding type metal frame [0002]

The present invention relates to an assembly type eyeglass frame which is not only welded but also has only an assembled shape in the overall structure of the metal frame, contributes to the manufacturing process of the eyeglass and the cost, as well as to the productivity improvement, will be.

In general, a metal frame made of metal is generally formed by integrally molding a front (an eyeglass frame including a rim holding the lens and a bridge connecting the rims of both sides) by using a die casting casting method, and a hinge coupled to both ends of the front Welded together by welding, and assembling glasses legs separately made on the rear side of the both hinges.

However, when the glasses front alloy (zinc, titanium, platinum, etc.) is integrally molded by the die casting casting method, it takes a long time and a lot of time to manufacture the mold for molding and stamping the product, The cost burdens associated with it are considerable, and when the parts such as the lens are required to be replaced during use, it is impossible in itself or extremely difficult.

 In order to solve these problems, recently, there has been a great increase in the products which are manufactured in a completely assembled and non-welded form including the front of the glasses, thereby reducing manufacturing process and cost and improving usability.

However, it is clear that most of the metal frames that are reported to have been produced so far have been greatly improved in usability due to the prefabricated structure. However, the manufacture of the basic frame, the front frame, is still molded by die casting Since each component is tangent and only the screws are connected to all the connection parts, the screw assembly process is complicated and requires a lot of manpower and time, and the product is very simple, and the quality of the appearance is improved, There has been a considerable problem.

For example, a conventional patent registration No. 10-1720045 (a combined type eyeglass frame having an improved assembling structure)

A front portion having a hollow rim portion formed on both sides of the bridge portion, and a leg arranged at both ends of the front portion, wherein the front portion includes an upper body having an upper rim supporting both ends of the upper half portion of the upper bridge, And a lower body formed on the lower part of the upper bridge, the lower part supporting the lower half of the lens, and a lower body formed on the upper part of the upper body, In the guide slot, an assembly hole is formed orthogonally. Guide holes are formed at both ends of each lower groove formed in the lower body so as to be guided into the guide slots, and the fastening holes are formed orthogonally to the guide pieces. When each guide member formed on the lower body enters the guide slot and is mated The assembly holes formed in the respective guide slots and the fastening holes formed in the guide pieces are aligned and crossed in a line and the guide pieces and the guide slots are assembled by assembly bolts fastened to the fastening holes along the assembled cross- Wherein the upper body is formed of a plastic molded product formed by cutting an injection-molded plastic sheet, and the lower body is formed of a metal molded product obtained by cutting a metal plate material, and linear protrusions are formed on the inner wall of the upper bead The lens having the groove formed on the outer wall is fixed by fixing the upper half to the upper rim by entering the linear protrusion into the groove and the inner diameter of the lower rim is integrally formed with a curling type 'C' The elastic ring of a stretchable material is disposed in the fastening piece, and a groove 'C' formed in the lower groove is formed in the groove of the lower half of the lens, So that the lens is fixed between the upper and lower ridges in a state of being elastically supported by a 'C' type curling attachment having an elastic ring disposed therein, and the upper rim of the upper body A preassembly structure is provided between the bridge and the lower bridge of the lower body such that the upper body and the lower body are preassembled with the upper bridge and the lower bridge through the preliminary assembling structure and then the insertion of the lens between the upper and lower brims, And the assembly of the slots and the guide pieces is performed by fastening the assembly bolts to the assembly holes and the fastening holes. The preliminary assembly structure includes a press-fit groove having an open bottom at an upper bridge of the upper body, The press-fit pin of the lower body is press-fitted into the press-fit groove formed in the upper body and preliminarily assembled to the lower portion of the upper body, A retaining head is formed in the press-fitting groove so that the retaining ring is laterally inserted into the press-fitting groove through the side access passage. The press-fitting pin is provided with a fastening head for press-fitting into the snap ring, Wherein said pin assembly is mounted on said snap ring to pre-assemble between said upper and lower bodies. ≪ RTI ID = 0.0 >

In addition, a complicated process is inevitably required, such as forming the upper body by separating the upper and lower parts, the upper body by precision machining through a cutting machine such as CNC, and the lower body by cutting the metal plate by press, wire and laser cutting The assembly process is very complicated and requires a lot of time, such as fitting a slot and a guide pin into many parts of the upper body and the lower body that are in contact with each other when the upper body and the lower body are engaged, and then connecting bolts or pins to the assembly hole. Lens replacement, etc.) is also very difficult and difficult to solve.

Accordingly, in the present invention, the structure of the spectacle front including two rims on both sides and a bridge therebetween is divided into an upper front and a lower front which are divided into upper and lower parts, and then the assembly is completed by simple assembly The manufacturing process and the molding process of the upper and lower fronts can be made as cheap and simple as possible, and in particular, the process of joining the hinges on both ends of the front and the process of joining the bridge to the middle bridge, Welded assembly type metal frame and a method of manufacturing the same, which is very simple and easy to assemble and which greatly contributes to the productivity and quality of assembling glasses, and a manufacturing method thereof. .

According to an aspect of the present invention, there is provided an upper front 110 having upper left and right half rims 111, upper half bridges 112 and upper half hinge portions 113, lower left and right half rims 121, The lower half bridge 122 is formed in a state where the lower front 120 having the lower half hinge parts 123 are separated from each other; The upper and lower front frames 110 and 120 separated from each other are brought into close contact with each other so that the shape of the spectacle frame is perfectly equipped. In this case, the upper half 110 and the lower front half 120 are hinge- And a bridge piece 142 formed by bending a steel wire is formed on the bridge connecting portion B where the upper half bridge 112 and the lower half bridge 122 are in contact with each other, And the binding member 130 is bound.

Welded metal frame of the present invention has the upper half hinge portion 113 and the lower half hinge portion 123 among the portions where the upper front 110 and the lower front 120 separated from each other come into close contact with each other, The upper half bridge 112 and the lower half bridge 122 are connected to each other except that the hinge pin and the screw are engaged by interposing the eyeglass leg hinge portion 131 and the stop piece 142 in the interlocking hinge engagement portion H. [ The bridge connecting portion B is naturally fixed in the process of binding the clip-type cable 130 formed by bending the steel wire to fix the nose paddle to be naturally equipped in the glasses, so that the assembling process of the glasses is minimized, If you need to replace parts such as lens replacement in the future, you can easily remove the clip-type caddy (130) from the conventional small bolt It is very easy to combine them again.

Fig. 1 is an illustration of a cut state of a material in the case of a method of using a thin metal plate and bending with a press in the manufacturing method of the present invention
FIG. 2 is an illustration of the upper front 110 and lower front 120 shown in the present invention.
3 is an exploded perspective view of the present invention
4 is a perspective view showing an example in which the stop piece 142 proposed in the present invention is integrally protruded or separately fired.
Fig. 5 is a perspective view of an assembled perspective view
6 is a plan view and a front view of the assembled state of the present invention
7 and 8 are an enlarged cross-sectional view and a perspective view of the hinge engaging portion H shown in the present invention.
9 to 13 are views showing various examples of the state in which the clip-type body 130 is fastened to the bridge coupling portion B of the present invention

The metal-free spectacle frame of the present invention is described below in more detail with reference to the accompanying drawings.

That is, according to the present invention, upper left and right half rims 111 are formed respectively on left and right sides of the lens 10, and upper half bridges 112 connected to each other are formed between the upper left and right half rims 111 An upper front 110 formed with an upper half hinge portion 113 at each of outer sides of the upper left and right half rims 111;

And a lower half bridge 122 is formed between the lower left and right half rims 121 and a lower half bridge 122 is formed between the lower left half and the right half rim 121. In addition, And a lower front 120 formed with a lower half hinge 123 at each of the outer ends of the hinge 121,

The upper and lower front frames 110 and 120 separated from each other are brought into close contact with each other so that the shape of the spectacle frame is perfectly equipped. In this case, the upper half 110 and the lower front half 120 are hinge- The stop piece 142 is formed on the inside of the eye H and the eyeglass leg hinge 141 is coupled to the outside of the stop piece 142;

And the bridge type coupling portion B in which the upper half bridge 112 and the lower half bridge 122 are in contact with each other is connected to a clip type bridge 130 formed by bending a steel wire.

<Upper front and lower front>

As shown in FIG. 1, the upper front 110 and the lower front 120 are cut using a metal thin plate of about 0.3 to 1.2t in thickness and cut into lengths and shapes in a deployed state through a cutting machine such as a laser or wire 2, the cut material S-1 and the cut material S-2 are pressed through the press process to the upper left half and the lower right half connected to both sides of the upper half bridge 112 and the lower half bridge 122, The upper half half 113 and the lower half half 123 may be formed integrally with the half rim 111 and the lower left and right half rims 121 and the upper half half 113 and the lower half hinge 123 at both ends Press bending method)

In some cases, it can be manufactured by a method of machining through CNC or NC (cutting machining method), or by an injection method using an alloy such as a die casting.

Hinge holes 111a and 121a are formed in the upper half hinge portion 113 and the lower half hinge portion 123 formed at both ends of the upper and lower fronts 110 and 120, The stopper fixing grooves 112 and 122 may be formed depending on the case where a metal thin plate is used and a method of bending by press is used).

In addition, a plurality of shank catches 113 and 123 are formed on the front and rear sides of the upper half bridge 112 and the lower half bridge 122, respectively.

"형으로 성형된다.In addition, the upper left and right half rims 111 and the lower left and right half rims 121 are formed so as to have lens holding grooves 114 and 124 on the inner side so that the peripheral edge portions of the lenses can be easily fitted,

"

< Cable-type clip-on type>

Particularly, since the steel wire clip-type sidewall 130 is formed integrally by a steel wire (carbon steel, spring steel, etc.), a certain degree of elasticity is imparted to the bridge joint portion, The clip type saddle 130 itself is effectively fixed to the bridge engagement portion B and the bridge half portion 122 of the upper half bridge 112 and the lower half bridge 122 are in close contact with each other, It can be easily separated even if the clip type saddle 130 is pulled up with a certain amount of force in the case where disassembly is necessary to replace parts such as a lens in the future.

In the center, there is formed a bottom side horizontal tight attachment portion 131 having a predetermined length corresponding to a part of the front side of the bottom face of the bridge coupling portion B at the center, A bottom side front side support portion 132 horizontally corresponding to a part of the bottom surface of the bridge coupling portion B is bent from the end toward the front side and a bridge connecting portion B Widthwise vertical corresponding portions 133 are vertically aligned with the front width of the bridge coupling portion B and are horizontally arranged on the upper surface of the bridge coupling portion B, And the upper surface inclination type corresponding portion 134 having a predetermined inclination angle corresponding to the inclination angle corresponding to both sides of the upper surface inclination corresponding portion 134 is bent. after Width corresponding portions 135 are vertically bent while being wrapped around the width of the bridge connecting portion B and are horizontally extended from the end of the rear width vertical corresponding portion 135 in the forward direction, And the bottom portion rear supporting portion 136 corresponding to a rear portion of the bottom rear supporting portion 136 are respectively bent and extended portions 137 having a predetermined length and angle are bent And the nose pad 138, which is one of the essential components of the spectacle frame, is coupled to the end of the extension 137.

At this time, the inclination angle alpha of the upper surface inclination type corresponding portion 134 is necessary to be easily coupled by an elastic force and to be able to be separated while being elastically opened even in the case of dropping, Although it can be set, it is most ideal to set it at 45 °.

For example, when the inclination angle is set to be too large (60 degrees or more) close to a right angle, there is a problem that the load is exerted to exert an elastic force. Conversely, if the inclination angle is too small (30 degrees or less) ) Is too far away.

When the upper half bridge 112 and the lower half bridge 122 are coupled to each other in a clip-like manner in which bridge bridges are in close contact with each other,

The shape of the bent iron core is finely widened and is tightly bound in a form of elastically wrapping the whole of the bridge fitting part while being compressed by the elasticity. In addition, the upper half bridge 112 and the lower half bridge 122, The nose pads 138 and the nose pads 138, which are necessary for the glasses, are fixedly secured, since the nails are tied in a customized manner to the formed catches 113 and 123, The upper half bridge 112 and the lower half bridge 122 which are in close contact with each other are held together and fixed so that the function of fixing the nose pad and the function of binding the bridge can be performed at the same time, You can contribute.

In addition, unlike a bolt or the like, which is used to bind a bridge coupling portion to the bridge coupling portion, the bridge clip-type bridge 130 needs only a user or an operator to hold it by hand and to simply insert the bridge into the bridge coupling portion. It is convenient to detach,

Accordingly, when the lens-clip-type sidewall 130 is separated in the future when the lens needs to be replaced in the future, a certain clearance may be formed between the upper left and right half rims 111 and the lower left and right half rims 121, The re-fitting process can be easily understood and is convenient.

<Bridge coupling part>

The bridge coupling portion B is a portion where the upper half bridge 112 and the lower half bridge 122 are in close contact with each other and the clip type bridge 130 is coupled to the bridge half portion 112 and the lower half bridge 122, It is necessary to form a plurality of cradle-shaped hooks 113 and 123 on the side of the clip-type cradle 130 so as to restrict the flow of the clip-type cradle 130 and to increase the binding force. At this time, The front-width-width vertical corresponding portion 133 and the rear-width wide-width corresponding portion 135 formed on the front and rear sides with respect to the inclination-type corresponding portion 134 can be customarily raised .

<Hinge coupling part>

The upper and lower half hinge parts 113 and 123 formed at the both ends of the upper and lower front hinge parts 110 and 120 are in contact with each other One hinge hole 111a and one hinge hole 121a are formed for each of the upper half hinge portion 113 and the lower half hinge portion 123 and on the inner side thereof there are provided fixing holes 112a and 122a It may be punctured.

At this time, the eyeglass leg hinge portion 141 is provided on the outer side between the upper half-hinge portion 113 and the lower half-hinge portion 123, which are aligned with each other with fine gaps maintained therebetween and in which the hinge holes 111a, And is fixed by the hinge pin 141a,

A stop piece 142 which restricts the stop piece 142 from being further bent backward when the eyeglass leg 140 rotates is integrally formed on the inner side from the upper half hinge portion 113 or the lower half hinge portion 123, Or may be separately inserted and fixed to the fixing bolt 142b.

In addition, the stop piece 142 should be limited so that it can not be overturned by 90 degrees when the eyeglass leg hinge 141 is bent outward, while it is allowed to rotate at many angles when it is turned inward. And has a rectangular shape corresponding to the eyeglass leg hinge 141 and having a chamfered shape at a predetermined angle.

10: lens 110: upper front
111: Upper left and right half rim 112: Upper half bridge
113: upper half hinge part 120: lower front side
121: Lower left and right half rim 122: Lower half bridge
123: lower half hinge part 130:
141: eyeglass leg hinge part 142: stop piece
B: Bridge coupling part H: Hinge coupling part

Claims (5)

Upper left and right half rims 111 are formed on left and right sides of the lens 10 so that the upper edge of the lens 10 is fitted therebetween and upper half bridges 112 connected to each other are formed between the upper left and right half rims 111, An upper front 110 having an upper half hinge 113 formed on the outer side of the half rim 111;
And a lower half bridge 122 is formed between the lower left and right half rims 121 and a lower half bridge 122 is formed between the lower left half and the right half rim 121. In addition, And a lower front 120 formed with a lower half hinge 123 at each of the outer ends of the hinge 121,
The upper and lower front frames 110 and 120 separated from each other are brought into close contact with each other so that the shape of the spectacle frame is perfectly equipped. In this case, the upper half 110 and the lower front half 120 are hinge- The stop piece 142 is formed on the inside of the eye H and the eyeglass leg hinge 141 is coupled to the outside of the stop piece 142;
And a clip-type bobbin (130) made by bending a steel wire is connected to a bridge coupling part (B) where the upper half bridge (112) and the lower half bridge (122) are in contact with each other.
The method according to claim 1,
The steel wire clip-type body (130)
And is integrally formed by a steel wire having a certain thickness,
In the center, a bottom side horizontal tight attachment portion 131 having a predetermined length corresponding transversely to a front portion of the bottom face of the bridge coupling portion B is formed,
The bottom side front side support portions 132 horizontally corresponding to a part of the bottom surface of the bridge coupling portion B are bent toward the front side from both side ends of the bottom side horizontal side close contact portion 131,
In the section extending upward from the bottom surface side receiving portion 132, front widthwise vertical corresponding portions 133 corresponding to the front width of the bridge connecting portion B are bent respectively,
The upper surface inclination corresponding portion 134, which horizontally corresponds to the upper surface of the bridge joint portion B and has a predetermined inclination angle corresponding to the both sides of the bridge joint portion B, Respectively,
In the section from the end toward the lower side of the upper surface inclination corresponding portion 134, the rear width vertical corresponding portions 135, which are vertically wrapped around the width of the rear portion of the bridge engaging portion B, are respectively bent,
The bottom rear side receiving portion 136 corresponding to a rear portion of the bottom surface of the bridge coupling portion B is respectively bent in a section extending from the end of the rear width vertical corresponding portion 135 in the forward direction and horizontally,
Extensions 137 having a predetermined length and angle are respectively bent in a section from each end of the bottom surface rear side receiving portion 136 toward a rearward downward direction,
And a nose pad (138), which is one of essential components of the spectacle frame, is coupled to the end of the extension (137).
The method according to claim 1,
The inclination angle [alpha] of the upper surface inclination type corresponding portion 134 is,
It is characterized by the inclined angle of 30 ~ 60 °.
The method of claim 3,
And a plurality of cord insertion slots 113 and 123 are formed on the front side and the rear side of the bridge coupling part B where the upper half bridge 112 and the lower half bridge 122 are in close contact with each other. Metal frames.
The method according to claim 1,
The upper half hinge portion 113 and the lower half hinge portion 123 are provided on both sides of the hinge engaging portion H,
After one hinge hole (111a, 121a) is drilled,
The hinge holes (111a, 121a) are punched out, respectively, and the hinge pins (141a) are fixed to the outer sides of the hinge holes (111a, 121a)
And a stop piece (142) for restricting the glass leg (140) from being further bent backward when the glass leg (140) is rotated.

Images