JP3168367U - Glasses frame using super elastic material - Google Patents

Abstract

An eyeglass frame comprising a superelastic material and having a function similar to a spring hinge that can be pushed outward from a state in which a vine is opened is provided. A joint portion 9 is provided on the inner side of both sides of the front portion 1, an arm 7 is extended from the inner side of the base of the temple 2, and a joint 8 is provided at the tip of the arm. A surface is formed, and this arm tip joint 8 is fitted into a space groove provided in the joint portion 9 and connected via a shaft screw 10. Therefore, when the temple 2 is further pushed outward, it can be bent and deformed by a bending moment acting on the arm 7. [Selection] Figure 1

Description

  The present invention relates to a spectacle frame constructed using a superelastic material excellent in elastic deformation.

  There are various types of spectacle frames, but they can be roughly divided into metal spectacle frames and resin spectacle frames. Although each has its own characteristics, the eyeglass frame targeted by the present invention is made of resin, and FIG. 7 shows a general resin eyeglass frame, which includes a front part (A) and two cranes (RO ) And (b), and the cranes (b) and (b) are attached to both sides of the front part (b) so that they can be folded via joints.

  By the way, a plastic spectacle frame has higher rigidity than a metal spectacle frame, and therefore, it often feels pain when worn for a long time. In particular, the pressing force acting from both sides of the face pressed by a thick vine (B) to the back of the head increases, and there may be some feeling of cramping and pain.

  Therefore, in recent years, a superelastic resin is used for a spectacle frame as a material excellent in elastic deformation, and can be deformed greatly with a small force. Therefore, it can be applied for a long time without feeling pain. Therefore, if the temple (b) is spread out, it can be greatly bent and deformed, but the temple (b) is bent and deformed into a smooth arcuate shape starting from the joint provided on the front side.

  When the vine (b) is deformed into a smooth bow, the area in contact with the side surface of the face is limited, and even if the pain pressed by the vine (b) is reduced, it is difficult to apply. Moreover, there is a problem that the glasses on the face are not stable because the contact area on the side of the face and the back of the head is small. In the case of a metal eyeglass frame, a joint (spring hinge) that can be slightly pushed outward from the state in which the vine is opened is often used.

  However, the spring hinges used in metal eyeglass frames cannot be used for resin eyeglass frames. Moreover, when it comprises and comprises a leaf | plate spring in a part of resin-made spectacles frames, the whole design will collapse | crumble and it will result in a loss of an external appearance.

  As described above, the resin-made spectacle frame has the above-described problems. The problem to be solved by the present invention is this problem. It is made to function in the same way as a conventional spring hinge using a super elastic material, and it is stable without feeling pain even if it is applied for a long time. An eyeglass frame composed of a super elastic material that can be worn by the user is provided.

  The spectacle frame according to the present invention uses super elastic resin as its material, and a joint that functions as a spring hinge like a metal spectacle frame so that it can be pushed outward from the state of opening the vine. It has a structure. Therefore, on the base side (front side) of the vine, an arm is curved and extended on the inside, and the tip of this arm is connected to a shaft provided on the front part.

  If the vine is opened, the base end of the vine will act as a stopper by coming into contact with the end of the armored portion formed on both sides of the front part, and the angle of pushing the vine can be regulated. The moment is applied to bend and deform. That is, a joint is provided at the tip of the arm, and a contact surface that functions as a stopper is formed at the tip of the joint. When the temple is opened, the corresponding surface comes into contact with the end of the armature and a moment is generated.

  Therefore, the thickness of the arm is smaller than that of the crane so that the arm is easily bent and deformed. Further, a space groove is formed in the joint portion provided inside the armature portion so that the joint at the end of the arm is accommodated when the crane is folded, and the abutting surface can abut against the space groove bottom. On the other hand, the arm can be composed of two pairs having a space between them, and a joint portion provided on the armor portion side can be fitted into the space and connected via a shaft screw.

  The eyeglass frame constituted by using the superelastic material according to the present invention is not damaged even if it is greatly deformed by an external force. That is, the frame is not damaged apart from the lens even if it is stepped on while being left on the floor. And the vine itself can bend and deform, but it is curved inside the base of the vine and the arm extends, and this arm is connected via a shaft screw provided at the front end of the front end of the armature. Yes.

  Therefore, if the vine is pressed outward from the open state, the arm is bent and deformed, and the vine is slightly pushed open to function as a spring hinge. Therefore, when the arm is bent and deformed, the vine itself having a large moment of inertia compared to the arm is pushed and opened without being greatly deformed, and the vine is worn in the region from the side of the face to the back of the head. These glasses are stable and do not hurt when worn for a long time.

It is the spectacles frame using the superelastic material which concerns on this invention, and the top view and the front view are represented. The side view of the spectacles frame using the superelastic material which concerns on this invention. Detailed view of a crane joint part. The development which separated the front part and the vine. The other spectacles frame using the superelastic material which concerns on this invention WHEREIN: The top view and the front view are represented. The enlarged view of the crane joint part of FIG. Conventional general plastic glasses frame.

  1 and 2 are embodiments showing a spectacle frame made of a superelastic material according to the present invention. FIG. 1 shows a plan view and a front view, and FIG. 2 shows a side view. In the figure, 1 denotes a front part, 2 denotes a temple, and two temples 2 and 2 are attached to both sides of the front part 1 and can be folded. The front part 1 has both rim parts 3 and 3 and a central connecting part 4 and armored parts 5 and 5 on both sides. Both the rim parts 3 and 3, the connecting part 4 and the armored parts 5 and 5 are integrally formed. ing. Also, nose pads 6 and 6 are formed on both sides of the connecting portion 4 and on the center side of the rim portions 3 and 3.

  The crane 2 extends the arms 7 and 7 inside the base portion (front portion side), the arms 7 and 7 are curved, and joints 8 and 8 are formed at the ends of the arms. The joints 9 and 9 provided in the parts 5 and 5 are connected. The joint 8 and the joint portion 9 are connected to each other through a shaft screw 10, and the temple 2 is configured to be folded by turning around the shaft screw 10.

  Here, the temple 2 made of superelastic resin is bent and deformed, but the arm 7 which is thin and has a small second moment of section can be further bent and deformed, and the temple 2 is pushed outward from the opened state. If so, a bending moment is generated in the arm 7 to bend and deform, and the temple 2 can be pushed outward. If the temple 2 is pushed open, the tip of the base 11 abuts against the tip of the end portion 5 of the front part 1 so that the pushing angle of the temple 2 is regulated. That is, in a state where the temple 2 is opened, a slight gap is left between the end of the armor portion and the tip of the temple base, and this gap disappears when the temple 2 is pushed outward.

  The arm 7 is provided on the base side of the temple 2 and protrudes inward so that the temple 2 can be folded as shown in FIG. A space groove 13 into which the joint 8 at the tip of the arm that rotates when folded is formed in the joint part 9 formed inside the armored part 5. That is, the joint 8 provided at the tip of the arm 7 is fitted, and a space groove 12 having a size that can be rotated to fold the temple 2 is formed.

  In FIG. 3, the case 2a is opened, the case 2b is folded, and the case 2c is pushed outward, respectively. 4 shows a state in which the front portion 1 and the temple 2 are separated from each other. A joint 8 is provided at the tip of the arm 7 which is curved and extends from the base 11 of the temple 2, and a stopper is provided at the end of the joint 8. The contact surface 12 functioning as is formed. The corresponding surface 12 forms a substantially flat surface.

  The joint 8 is provided with a shaft screw hole 14 therethrough, and the contact surface 12 can contact the space groove bottom if the joint 8 rotates when the temple 2 is pushed open. As a result, a large moment is generated around the shaft screw 10, and the arm 7 is bent and deformed. When the temple 2 is opened, a slight gap remains between the tip of the armor 5 and the base end of the temple 2, and if the temple 2 is pushed outward, the base end of the temple 2 abuts the tip of the armor. The above gap is eliminated. Therefore, at this stage, the arm 5 is prevented from being bent and deformed, but the temple 2 made of a superelastic material can be deformed and bent outward.

  On the other hand, when the temple 2 is folded, the folding angle of the temple 2 can be restricted by the rear surface of the arm 5 coming into contact with the space groove bottom. However, when the vine 2 is folded, it is not always necessary to put the back of the arm against the space groove bottom in order to contact the inner surface of the front portion 1.

  FIG. 5 shows another embodiment of a spectacle frame made of a superelastic material according to the present invention. The eyeglass frame shown in the figure has two temples 2 and 2 in which a front part 1 is attached to both side armor parts 5 and 5, and the basic structure is common to the eyeglass frame described in FIG. In the case of the eyeglass frame shown in the figure, the form of the arm 7 extending from the base of the temple 2 is slightly different. In the eyeglass frame shown in FIG. ".

  A joint 8 connected to the joint portion 9 of the front portion 1 is provided at the end of the arm, and a contact surface 12 serving as a stopper is formed at the end of the joint 8. That is, when the temple 2 is opened, the contact surface 12 contacts the bottom of the joint space groove, and if the temple 2 is pushed further, the contact surface 12 acts as a stopper and the arm 7 is bent and deformed. The same applies to the temple 2 in FIG. 1, but the arm 7 is bent and deformed, and as a reaction force, an elastic force (spring force) for pushing the temple 2 back to its original position acts. It functions in the same way and can wear glasses stably.

  FIG. 6 shows an enlarged view of the joint portion of FIG. If the temple 2 is opened, the contact surface 12 provided at the joint tip of the arm 7 comes into contact with the bottom of the space groove 13 and stops, and further pressing the arm 7 causes the arm 7 to bend and deform to function as a spring hinge. I can do it. If the arm 7 is bent and deformed to some extent, the point A on the arm side and the point B on the vine side come into contact with each other, and the opening of the vine 2 is restricted. Of course, even if the points A and B contact, the arm 7 can bend, but the pressing force increases.

  That is, when the temple 2 is opened, the contact surface 12 provided at the joint tip of the arm 7 comes into contact with the bottom of the space groove, and then the arm 7 is bent and deformed with a return elastic force so that the temple 2 is opened outward. Then, when the point A and the point B abut, a larger return elastic force is generated, the arm 7 is bent and deformed, and the temple 2 can be opened outward. Further, if the temple 2 is opened, the base end of the temple 2 hits the end of the end piece 5 and stops.

  In the case of the embodiment shown in FIGS. 1 and 5, there is one arm 7 extending from the temple base 11, and this arm 7 is fitted into a joint space groove provided on the inner side of the armor portion 5 to be screwed into the shaft. 10 are connected. On the contrary, it is also possible to provide two arms that form a pair in the vertical direction with a space between them, and fit the joint portion 9 provided in the armor portion 5 into the space between both arms and connect them with the shaft screw 10. . Of course, also in this case, a contact surface 12 that functions as a stopper is formed at the tip of the tip joint 8 of both arms 7, and this contact surface 12 can abut against the bottom surface of the joint portion 9 when the temple 2 is pushed open.

DESCRIPTION OF SYMBOLS 1 Front part 2 Tsuru 3 Rim part 4 Connection part 5 Yoroi part 6 Nose pad 7 Arm 8 Joint 9 Joint part
10 shaft screw
11 Base
12 Contact surface
13 Spatial groove
14 Shaft screw hole

Claims (2)

In a spectacle frame made of a super elastic material, a joint is provided on the inner side of both sides of the front portion, and an arm is extended from the inner side of the base of the crane, and a joint is provided at the tip of the arm. A contact surface is formed, this arm tip joint is fitted into a space groove provided in the joint portion and connected via a shaft screw, and when the vine is opened, the contact surface contacts the space groove bottom, and from the open state Further, when the vine is pushed outward, the glasses frame using a super elastic material is deformed by bending moment acting on the arm. A space is provided in the base of the crane to provide a pair of arms, a joint is provided at the tip of the arm, a contact surface is formed at the tip of the joint, and a space between the contact surfaces is provided. The spectacles frame using the superelastic material of Claim 1 which fitted the joint part provided in the inner side of the armor part, and connected with the shaft screw.

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