JP3207203U - Eyeglass frame vine - Google Patents

Abstract

An object of the present invention is to provide a frame for a spectacle frame that can be folded further outwards under the action of a spring force from a state in which a vine attached so that it can be folded on both sides of a front part is applied to the spectacles. To do. A vine body is provided with an upper piece and a lower piece provided on the base side with an opening therebetween, and a connecting member connected to the end of the armor via a hinge is disposed in the opening. The base of the V-shaped plate spring 8 is fixed to the tip of the connecting member 18, and the tips of the upper and lower pieces of the V-shaped plate spring 8 are fixed to the tips of the upper and lower pieces. [Selection] Figure 7

Description

  The present invention relates to a temple of a glasses frame having a function as a spring hinge that enables the vine to press the side face and temporal region of the face with appropriate pressure when wearing glasses.

A joint that functions so as to be able to be slightly pushed outward from the state in which the crane is open is generally called a spring hinge and is frequently used as a crane joint means for a spectacle frame.
By the way, the spring hinge is constructed so that it can be pushed outward by energizing the spring force in the return direction to the open state of the hinge, and for that purpose a coil spring is housed inside. That is, a spring force is generated by compressing and deforming the coil spring, but a sliding member for expanding and contracting the coil spring is required.
Therefore, when the sliding member is hindered due to the intervention of dust or the occurrence of rust, the opening operation of the vine does not function smoothly.

  FIG. 8 shows a joint structure called the most basic spring hinge. That is, the basic idea of the spring hinge is that a fixed butterfly piece (b) is brazed and fixed to the armor (b), and the other butterfly piece is allowed to slide for a certain distance. This allows the crane (d) to open outward.

  A guide groove is formed in the crane (d), and the sliding butterfly piece (c) slides with the guide groove as a guide. The inside of the spring case (e) constituting the sliding butterfly piece (c) A coil spring (g) is accommodated in the space (f), and when the temple (d) is pushed outward, the spring case (e) is drawn toward the fixed butterfly piece (b) side and compressed. The coil spring (g) hits a claw (li) provided at the entrance of the internal space of the spring case (e) and locked in the locking groove (chi) of the claw (d), and the claw (re) functions as a stopper. Yes. As a result, the restoring force of the coil spring (g) acts on the temple (d) and tries to return the temple (d) to its original position.

  By the way, the hinge structure in which the coil case (G) is incorporated in the spring case (E) functions by sliding along the guide provided on the temple (D) as shown in the figure, but the sliding function is impaired. There are also problems such as being easy to break down and difficult to repair once broken down. If the conical head of the coil spring (g) and the core metal (nu) inserted in the center hole of the coil spring (g) is pushed in and locked to the claw (re), the internal space (f) of the spring case (e) The claw (re), the coil spring (g) and the core bar (nu) cannot be removed from.

Thus, since the spring hinge comprised using a coil spring is complicated in structure and is easy to break down, the spring hinge comprised with the leaf | plate spring instead of this coil spring is also known.
For example, “Glass frame crane joint structure” according to Japanese Patent Application Laid-Open No. 10-133153 has a simple structure in which the crane folding operation is smooth and there is no sliding part. In other words, the armor side joint piece is fixed to the armor fixed to the front frame, and the rail side joint piece is fixed to the temple and combined with each other. The armor side joint piece is provided with a joint part having a pin hole formed of an elongated hole. It has a curved surface, and a leaf spring is extended in the direction of the armature-side joint piece on the crane side joint piece, the tip part abuts on the curved surface, and is connected to each other via a screw pin.

  Japanese Patent Publication No. 2003-57605 “Glass Frame Crane Joint Structure” has the same function as a spring hinge that can be pushed slightly outward from the spectacle frame vine open state. It is a crane joint structure that is simple in structure and low in manufacturing cost. Therefore, the base portion of the leaf spring is fixed inside the temple to make the tip end a free end, and the tip is curved and abuts against the armor to urge the spring force.

"Glass frame crane joint structure" according to JP-A-10-133153 "Glass frame crane joint structure" according to Japanese Patent Application Laid-Open No. 2003-57605

As described above, the spring case of the sliding spring hinge provided with the coil spring has the above-described problems. Further, in the case of a spring hinge configured using a leaf spring, the amount of elastic deformation of the leaf spring is limited, so that the function as a spring hinge is not sufficient.
The problem to be solved by the present invention is this problem, the structure is simpler and does not break down, and the crane can be opened and closed stably and has a sufficient function as a spring hinge. I will provide a.

The temple of the glasses frame according to the present invention has a function as a spring hinge. Therefore, the joint itself does not have a spring hinge function, and a hinge that has been conventionally used for connecting so that the crane can be folded can be used. Of course, it is not limited to hinges.
The crane forms an opening cut out on the base side, and the upper piece and the lower piece extend with the opening therebetween.

  A joint member is fitted in the opening, and the joint member and the crane are connected by a V-shaped leaf spring. That is, the V-shaped leaf spring is tilted sideways to open the joint side (forms a shape>), the base of the V-shaped leaf spring is fixed to the distal end portion of the joint member, and the distal ends of both pieces are cranes. It is fixed to the tip of the upper piece and the tip of the lower piece. And this joint member is connected via joints, such as an armor and a hinge.

  The vine of the present invention has a spring hinge function on the vine itself. Therefore, the vine can be connected to the vine using a hinge that is commonly used. For that purpose, it is only necessary to attach to the armor provided on both sides of the front part via a hinge, the assembling work of the eyeglass frame is easy, the vine can have the same function as the spring hinge, and the glasses are on the face When hung, it stabilizes without shifting the front part. Moreover, when wearing glasses, they are soft and do not feel pain when worn for a long time.

By the way, the base side of the crane is opened, and the joint member fitted in the opening is connected through a V-shaped leaf spring that has fallen sideways. The joint member is connected to the armor by a hinge, but since the crane is connected via a V-shaped leaf spring, the crane can function in the same way as the spring hinge and push outward. I can do it.
Here, since the leaf spring is V-shaped, the crane can be opened and closed stably, and the V-shaped leaf spring is attached by overlapping the joint member fitted in the temple opening, so that its length The length can be determined without being influenced by the length of the vine, and the vine can be flexed flexibly.

It is a spectacles frame provided with the vine of this invention, (a) is a top view, (b) is a front view. The side view of the spectacles frame provided with the vine of this invention. When the vine is bent outwardly due to the spring deformation of the V-shaped leaf spring. A specific example of a V-shaped leaf spring. A specific example showing a crane body. When a connecting member is connected to the end of the armor via a hinge. When connecting the connecting member and the upper piece and the lower piece of the crane body with a V-shaped leaf spring. The Example which shows the conventional spring hinge.

1 and 2 show an embodiment of a spectacle frame equipped with a crane according to the present invention. FIG. 1 (a) is a plan view, FIG. 2 (b) is a front view, and FIG. 2 is a side view. Represents. In the figure, 1 is a front part, 2 is a temple, 3 is a rim, 4 is a connecting member, 5 is a nose pad, 6 is a hinge, and 7 is an armor.
Both rims 3 and 3 are connected to the front portion 1 by a connecting member 4, and nose pads 5 and 5 are attached to the center.

  And, on the yokes 7 and 7 brazed to both sides of the front portion 1, the cranes 2 and 2 are attached by hinges 6 and 6 so that they can be folded. The crane 2 of the present invention comprises a leaf spring in a part thereof, and can function in the same manner as a spring hinge by elastically deforming (flexing deformation). Therefore, the hinge 6 generally used conventionally is used for the joint, not the spring hinge.

  FIG. 3 shows the temple 2 connected to the armor 7, wherein (a) shows the state in which the temple 2 is opened, and (b) shows a state in which the temple 2 is pushed slightly outward from the dotted line position indicating the opened state. Represents. A V-shaped leaf spring is attached to the temple 2, and the V-shaped leaf spring 8 is elastically deformed (bending deformation), so that the temple 2 can be bent outward as shown in FIG. . Then, the elastic deformation of the V-shaped plate spring 8 causes a force to return the temple 2 to the position indicated by the dotted line.

FIG. 4 is a specific example showing the V-shaped leaf spring 8, and the upper piece 9 and the lower piece 10 form a V shape. A convex portion 12 is provided at the base 11 where the upper piece 9 and the lower piece 10 intersect, and a convex portion 13 is also formed at the tips of the upper piece 9 and the lower piece 10, and the other portions are thinned and elastic. It is easy to deform (bend deformation).
Here, the shape of the V-shaped leaf spring 8 is V-shaped, but it may be substantially V-shaped having an upper piece 9 and a lower piece 10. For example, the upper piece 9 and the lower piece 10 do not incline but extend in parallel so as to extend from the base and extend outwardly so that the tip is connected to the upper piece 10 and the lower piece 17 formed on the temple 2. It can also be a shape.

FIG. 5 is a specific example showing the temple main body 14. As shown in FIG. 5, the base side of the temple main body 14 is elongated and has an opening 15. Therefore, the upper piece 16 and the lower piece 17 extend across the opening 15.
By the way, a connecting member is connected to the armor 7 brazed to both sides of the front portion 1 via a hinge 6, and the connecting member and the temple body 14 are connected by the V-shaped plate spring 8.

FIG. 6 shows a connecting member 18 connected to the armor 7 via a hinge 6. The connecting member 18 has a size that fits into the opening 15 formed in the temple main body 14 shown in FIG. Yes.
FIG. 7 shows a state in which the connecting member 18 is fitted in the opening 15 and connected to the crane main body 14. The convex portion 12 formed on the base portion 11 of the V-shaped leaf spring 8 is brazed to the distal end of the connecting member 18, and the convex portions 13, 13 formed on the distal ends of the upper piece 9 and the lower piece 10 are the crane main body 14. The upper piece 16 and the lower piece 17 are brazed to the tips.

  When the temple 2 is pressed outward as shown in FIG. 3B, the upper piece 9 and the lower piece 10 of the V-shaped plate spring 8 are elastically deformed (spring deformation), and the temple 2 is bent. It can be transformed. Here, the upper piece 16 and the lower piece 17 of the connecting member 18 and the temple main body 14 are hardly bent and deformed, and the temple 2 can be bent and deformed by the spring deformation of the V-shaped plate spring 8.

  In the present invention, the V-shaped leaf spring 8 is disposed inside the connecting member 18 and in an overlapping position. Therefore, the length of the V-shaped leaf spring 8 can be determined without affecting the length of the temple 2, and the amount of bending deformation and the strength of the bending deformation of the temple 2 can be improved. It becomes. Further, since the upper piece 9 and the lower piece 10 of the V-shaped plate spring 8 are connected to the upper piece 16 and the lower piece 17 of the crane main body 14, the folding operation of the temple 2 is also stabilized.

DESCRIPTION OF SYMBOLS 1 Front part 2 Crane 3 Rim 4 Connecting member 5 Nose pad 6 Hinge 7 Yoroi 8 V-shaped leaf spring 9
10 Lower piece
11 Base
12 Convex
13 Convex
14 crane body
15 opening
16 Upper part
17 Lower part
18 Connecting members

Claims (2)

In the vine that functions so that the vine attached so that it can be folded on both sides of the front part can be pushed slightly outward from the open state when wearing glasses, the vine body opens to the base side An upper piece and a lower piece provided with a portion in between, a connecting member connected to the end of the armor via a joint such as a hinge is arranged in the opening, and the base part of the leaf spring having a substantially V shape is arranged above A spectacle frame crane comprising: a front end of a connecting member; and an upper end and a lower end of an approximately V-shaped leaf spring fixed to the upper end of the upper piece and the lower piece. 2. The eyeglass frame crane according to claim 1, wherein a convex portion is formed at the base of the substantially V-shaped leaf spring and the tips of the upper and lower pieces.

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