JP3012042U - Spiral joint structure for eyeglass frames - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] A joint structure that connects the vines of eyeglass frames, which allows the vines to be folded always stably without using the conventional hinges, and the conventional hinges with springs. Providing a joint structure with functions equivalent to. [Structure] A structure in which a front end provided with an end screw has a shaft screw 22 and a joint member 6 fixed to the temple 1 is connected to the shaft screw 22, and the joint member 6 can slide a slider on a sheath body. The coil spring and pipe are built into the slider and the joint is
The screw 21 screwed into the sheath body is inserted into the pipe so that the sheath body is pressed against the end piece 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a joint structure for a temple of an eyeglass frame.

[0002]

[Prior art]

 As shown in FIG. 6, a general eyeglass frame crane is foldably connected via a hinge. The armor is brazed to the frame that holds the lens, and each hinge piece of the hinge is brazed to the inner surface of the end of the armor and the vine so that the horn bends with respect to the fixed armor. However, the crane cannot sustain a stable folding operation. In other words, a small hinge loosens its shaft screw and wears the sliding surface, causing rattling, resulting in loss of stability of the vine, and the glasses worn may be displaced or come off.

In addition, since the hinge is small in size, it is cumbersome to manufacture, and the joint structure has a structure in which the hinge is in a straight line with the end piece as shown by the solid line in the figure and does not open further. ing. Of course, if the eyeglasses are simply put on the face, the openness of the vine is sufficient, and since the vine has some elasticity, it can be bent slightly to fit the face. .

However, it is only for a short period of time that the spectacles worn by the vine do not rattle because they fit the face only with the spring characteristics of the vine, and the spring characteristics of the vine itself are extremely bent and plastically deformed. Unless the material is used, it is always constant and can be restored to its original shape by removing the force, but as mentioned above, the hinge connecting the vines becomes loose. In the conventional hinge joint structure using only hinges, there is no means to absorb the impact force when some kind of impact is applied to the front frame, and the glasses may fall from the face, the lens may be damaged, There are also situations where the frame itself is bent.

By the way, as one means for solving such a problem of the spectacle frame, a joint structure that allows the temple to be opened slightly further outward from the linear state with the armature is desired and used partially. ing. FIG. 7 shows a conventional example of this joint structure, which is called a spring hinge. That is, the basic idea of the spring hinge is that by fixing the fixed butterfly c to the armor a by brazing and by using the other butterfly as the sliding butterfly d to allow sliding for a certain distance, as shown by the dotted line, The opening in the direction can be given to the crane b.

A guide e is fixed to the inner surface of the temple b, and the sliding butterfly piece d slides by using the guide e as a guide. In the sliding butterfly piece d, a coil spring ( (Not shown) is accommodated, and the length is adjusted so as to be compressed when the temple b is opened to the outside, and the restoring force of the coil spring acts on the temple. By the way, the hinge structure in which the coil spring is built in the sliding butterfly piece d is complicated, and therefore the number of manufacturing steps is increased, resulting in an expensive hinge with a spring. Moreover, since the structure is complicated, it is prone to failure, and once it fails, it is difficult to repair.

This type of hinge with a spring has a structure in which a spring force is applied to the vine so that the vine can be opened outward. However, since the hinge is a joint structure using a hinge, The rattling of the turn occurs, and the stability of the vine based on it is lost. The "eyeglass hanging device" according to Japanese Utility Model Publication No. 2-16330 is also one of the conventional techniques. The structure of this temple hinge device is simpler than that of the conventional spring hinge, and it is a structure that does not form the conventional hinge structure, but is simply locked to the arcuate curved portion provided on the end side. Is configured to be completed.

That is, the pins provided on the temple side are locked to the arcuate curved portion, and the spring force prevents the pins from rattling with each other. However, it is not easy to lock and connect the pin to the arcuate curved portion, and the strength of the arcuate curved portion fixed to the end piece is weak, and even if the hardened part is brazed It will be annealed by the heating. Further, when the temple is opened and closed, there is a problem that the tip of the curved portion is caught in the arcuate concave portion of the sheath body, and smooth movement cannot be performed.

[0009]

[Problems to be solved by the present invention]

 As described above, the conventional joint structure of the eyeglass frame has the above problems. The problems to be solved by the present invention are these problems, and it is to improve the above-mentioned "eyeglass temple hinge attachment device" and to provide a stable crane joint structure without using a hinge, and to assemble It is to provide a joint structure that is simple and has a function equivalent to a hinge with a spring.

[0010]

[Means for Solving the Problems]

 The temple joint structure of the eyeglass frame according to the present invention is a structure that can be folded without using a conventional hinge, and is configured to function as a spring hinge. There, there is a shaft on the side of the front frame provided on the end, and a sheath is fixed to one of the temples, and a slider is loosely fitted on the sheath. A joint projecting from the sheath body is formed at the tip of the slider (on the side of the end), and a shaft hole penetrates the joint, and the shaft is inserted through the shaft hole to connect the slider to the end.

The slider is a substantially rectangular frame body, and the joint is formed so as to project at a corner of the frame body. Therefore, an elongated hole is formed in the slider, a coil panel or the like is set in the elongated hole, and a ring having an outer diameter substantially equal to the width of the elongated hole is arranged at one end of the coil spring. The slider is a plate having a constant thickness, the outer diameter of the coil spring is larger than the thickness of the slider, and the length of the ring is substantially the same as the thickness of the slider.

The crane joint structure of the present invention connects the sheath body and the temple fixed to the sheath body via the slider. Therefore, the sheath body has a slide groove into which the slider is loosely fitted, and forms a storage space that houses an elastic body such as a coil spring. The coil spring is set in the elongated hole in a compressed state to some extent and presses the ring placed at one end. The ring can slide along the long hole, and the screw screwed into the sheath body penetrates the hole of the ring to position the ring.

[0013]

[Action]

 The slider connected to the shaft can rotate about the shaft, so that the sheath body in which the slider is loosely fitted and the temple fixed to the sheath body are folded. Furthermore, the vine can be pushed outward from the open state, but in this case the vine bends around the contact point with the tip of the endpiece, and the slider is pulled in the axial direction to further compress the elastic body. To do.

That is, although the slider is pulled in the axial direction, the screw that is screwed into the sheath body restrains the ring, so that the coil spring, which is an elastic body, is compressed accordingly. Therefore, if you release the crane, it can return to its original position by the spring force, and it will function as a spring hinge. Further, since the slider connected to the shaft is always in the state of being elastically biased, the end face of the sheath body contacts the end piece, and the vine does not rattle, and the stable folding operation is maintained. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0015]

【Example】

 FIG. 1 is an embodiment showing a temple joint structure of an eyeglass frame according to the present invention, which is an external view. In the figure, 1 is a temple, 2 is an armor, 3 is a rim, 4 is a connecting member for connecting both rims 3, 3 is a nose pad. The end piece 2 is brazed to the outer side of the rim 3, a joint member 6 is connected to the end piece 2, and the temple 1 is connected and fixed to the joint member 6. The spectacle frame shown in the figure is made of metal and uses Yoroi 2 for that purpose, but in the case of a resin frame, the tip of the Yoroi is embedded in the front frame and the joint members are connected. It has an axis.

FIG. 2 shows a slider 7 that constitutes the joint member 6. The slider 7 is a substantially rectangular frame body, and is in the form of a plate having a constant thickness. The joint 8 is projected at the corner and the shaft hole 9 is penetrated at the center. Further, a long hole 10 is formed in the frame body, a coil spring 11 is set in the long hole 10, and a pipe 12 having a through hole 13 is arranged at one end of the coil spring 11. Here, the coil spring 11 is in a compressed state to some extent.

The outer diameter of the coil spring 11 is larger than the plate thickness of the slider 7, and the outer peripheral portion of the coil spring 11 projects from the elongated hole 10 as is apparent from FIG. 2B. However, one of the pipes 12 has a certain length, and the outer diameter has almost the same dimension as the width of the elongated hole 10. Therefore, the pipe 12 can move along the elongated hole 10 by compressing the coil spring 11. The pipe 12 is long enough to press the coil spring 11. Of course, a washer may be interposed between the pipe 12 and the coil spring 11.

FIG. 3 shows the sheath body 14. The outer shape of the sheath body 14 is a substantially rectangular parallelepiped, and a housing portion 15 and a guide groove 16 are formed in the center thereof. The housing 15 has a certain length and therefore has a bottom 17, but the guide groove 16 extends over the entire length of the sheath body 14. Then, the slider 7 is loosely fitted in the guide groove 16, and the coil spring 11 is housed in the housing portion 15. Further, as is apparent from the same figure, a projecting piece 18 is provided at a corner of the sheath body 14, and a screw hole 19 is further formed so as to penetrate the housing portion 15.

FIG. 4 shows an assembly process of the joint member 6. (A) shows a case where the temple 1 is fixed to the joint member 6, and a projecting piece 20 is formed at the end of the temple, and the projecting piece 20 is fitted into the guide groove 16 of the sheath body 14 to be brazed. Attached. In addition, a resin vine may be connected to the front end of the sheath body 14, and in this case, the resin vine is connected with a part of the sheath body embedded. (B) shows a plan view (drawing from the direction A in (a)) when the crane 1 is connected. Then, the slider 7 is inserted into the sheath body 14 connecting the temples 1. In this case, a coil spring 11 and a pipe 12 are set in the elongated hole 10 of the slider 7. The state where the slider 7 is inserted along the guide groove 16 is the state shown in (d). A screw 21 is screwed into the screw hole 19 of the sheath body and inserted into the through hole 13 of the pipe 12 set in the elongated hole 10 of the slider 7. Therefore, the slider 7 is restrained by the screw 21 and does not come off from the sheath body 14, and the joint 8 formed at the corner portion of the slider 7 projects from the sheath body 14.

The joint 8 of the slider 7 is pivotally supported by the shaft provided at the tip of the end piece 2 and is connected to the end piece. FIG. 1 shows this state. FIG. 5 is an enlarged view of this, and FIG. 5B shows the case where the temple 1 is further pushed outward. The joint member 6 allows the joint 8 of the slider 7 to be pivotally supported by the shaft screw 22 provided at the tip of the end piece, and enables the folding operation like a general vine, but can be expanded outward as shown in the figure. .

When the temple 1 spreads outwards, the protruding piece 18 of the sheath body 14 contacts the end piece 2 and the distance between the shaft screw 22 and the screw 21 increases (L ₁ <L ₂ ). Although the screw 21 is always in the fixed position and restrains the pipe 12 of the slider 7, the slider 7 is pulled toward the end by the expansion of the distance between the shaft screw 22 and the screw 21, and the coil spring 11 is correspondingly pulled. Is compressed. Therefore, if the crane 1 is released, the restoring force of the coil spring 11 returns the crane 1 to the state of (a).

Further, the joint member 6 has the temple 1 connected to the tip thereof and is connected to the end piece in the state shown in FIG. 4 (d). In this case, the slider 7 is pulled to the end side to some extent. In this state, the joint 8 is connected to the shaft screw 22 provided on the end piece 2. That is, in the state shown in FIG. 5A, the pipe 12 is displaced from the end of the elongated hole 10 and the coil panel 11 is further compressed, and the end face of the sheath body 14 is in pressure contact with the end piece 2. . Therefore, the folding operation of the temple 1 can be performed stably without the rattling due to the sheath body 14 pressing.

The abutment 2 has contact surfaces 23 and 24 which are orthogonal to each other. The contact surfaces 23 and 24 are pressed against the contact surface 23 when the temple 1 is opened and pressed against the contact surface 24 even when the temple 1 is folded. The vine does not rattle. As described above, the temple joint structure of the present invention is one in which the temples are connected through the joint member containing the slider biased by the spring force, and the following effects can be obtained.

[0024]

[Effect of device]

 The temple joint structure of the present invention does not use a hinge as in the prior art, but connects the joint of the slider of the joint member to the shaft screw provided on the end piece, and the slider is biased by a bending force. . Therefore, since the sheath body of the joint member is pressed against the armature by the spring force, the vine can stably continue the folding operation without rattling. Further, since it can slide along the guide groove of the sheath body, the joint has a function as a spring hinge. However, the joint structure of the present invention is simpler than the conventional hinge with spring. Moreover, the assembling work of the joint portion is easy, and the joint of the slider may be connected to the shaft screw of the endpiece.

[Brief description of drawings]

FIG. 1 is an embodiment in which a vine is connected by a joint member of the present invention.

FIG. 2 is a specific example of a slider that constitutes the joint member of the present invention.

[Fig. 3] A sheath body with a built-in slider.

FIG. 4 is a process of assembling the crane joint structure of the present invention.

FIG. 5 is a joint member connected to the armor.

FIG. 6 is a conventional crane joint structure.

FIG. 7 A conventional hinge with a spring.

[Explanation of symbols]

 1 Crane 2 Yoroi 3 Rim 4 Connecting Member 5 Nose Pad 6 Joint Member 7 Slider 8 Joint 9 Shaft Hole 10 Elongated Hole 11 Coil Spring 12 Pipe 13 Through Hole 14 Saya Body 15 Storage Section 16 Guide Groove 17 Bottom 18 Projection 19 Screw Hole 20 Convex piece 21 Screw 22 Shaft screw 23 Contact surface 24 Contact surface

Claims (2)

[Scope of utility model registration request] 1. A temple joint structure for foldably connecting a temple to a front frame of eyeglasses, wherein a front end of an armature provided on a front frame has a shaft, and a joint member having a temple end fixed thereto is connected to the shaft. , The joint member is composed of a slider and a sheath body, and the slider is a frame body having a substantially rectangular shape and having a constant thickness. An elongated hole is formed in the center, and an outer shape larger than the thickness of the slider is formed in the elongated hole. An elastic body such as a coil spring and a pipe are set, and a joint is projected at a corner portion of the frame body, a guide groove and a storage portion are formed in one sheath body, and a screw hole penetrating the storage portion is provided. The temple of a spectacle frame, characterized in that the slider is loosely fitted in the guide groove and screwed into the screw hole of the sheath body is inserted into the shaft hole of the slider pipe, and the joint is pivotally supported on the axis of the armature. Joint structure . 2. A temple joint structure for foldably connecting a temple to a front frame of eyeglasses, wherein a front end of an armature provided on a front frame has a shaft, and a joint member having a temple end fixed thereto is connected to the shaft. , The joint member is composed of a slider and a sheath body, and the slider is a frame body having a substantially rectangular shape and having a constant thickness. An elongated hole is formed in the center, and an outer shape larger than the thickness of the slider is formed in the elongated hole. Set an elastic body such as a coil spring and a pipe, and project a joint at the corner of the frame, project a projecting piece at the corner of one sheath, and form a storage section with a guide groove and a through hole Then
In addition, there is a screw hole penetrating the storage part, the slider is loosely fitted in the guide groove, and the screw screwed into the screw hole of the sheath body is inserted into the shaft hole of the slider pipe, and the joint is attached to the axis of the armor. A temple joint structure for eyeglass frames characterized by being pivotally supported.