JPS61500639A - Eyeglass frames containing shape memory elements - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Eyeglass frames containing shape memory elements Skin - Anal Ice - 1 TECHNICAL FIELD The present invention relates to eyeglass frames, and more specifically, A phase transition occurs according to the force, resulting in shape memory properties, quasi-elastic properties, or relates to a frame made of a material that exhibits the combined properties of both.

i-Higashi 1 skin 2 anus Traditionally, eyeglass frames are made of metal or plastic. Or again , frames made of a combination of metal and plastic are also provided.

There is also prior art for making eyeglass frames and related parts from shape memory metals. do. In other words, such metals can be used for the rims of glasses, or for the parts of glasses. The temple can be used as a fastener to attach it to a frame, or There have also been proposals to use it for the vine itself.

However, the problem is that these metals exist in various different phases or states. There is. That is, martensite state, austenite state, or a combination thereof. Based on this state, superelasticity, two types of shape memory properties, and rubber It has characteristics such as a transition from austenite to martensite, etc. Ru.

In the martensitic state, the metal has the characteristics of a shape memory metal, It is possible to deform this, maintain this deformed shape, and heat it. It has the property of restoring its memorized shape when heated. Ru. Also, in the superelastic state or austenitic state, the above materials have high elasticity. properties, but not shape memory properties, and in a state where both are mixed, The above materials exhibit both properties. Specifically, the deformation rate for the above material is If the stress does not exceed 6%, the original shape will be restored when the stress is removed. However, If the deformation rate is 8% or higher, the deformed state will not be maintained. and will not completely recover to its original shape.

Therefore, the above-mentioned changes in state occur as a result of both temperature and deformation effects. should be kept in mind. The superelastic state is the transition from martensite to austenite. It occurs when stress is applied at a temperature higher than the transition temperature. In this situation, the above The material is normally in an austenitic state, but when enough stress is applied it becomes marten. Return to site status.

When the stress is removed, the material t4' returns to the austenitic phase and becomes larger. Expresses spring force. When the deformation rate exceeds about 8%, the material retains its deformed state. is maintained in a state of

In this way, each of the above two states provides the desired properties. However, under certain conditions, such as the above-mentioned eyeglass parts according to the present invention, all In other words, there is no memory property in the above elastic state, A state in which the deformed state can be maintained permanently but has memory properties - in some cases elasticity It can only be restored by heating it. Conventionally, these technologies and This material cannot be passed through the parts of eyeglass frames. Materials with these properties have not been able to be effectively utilized in the field.

day The present invention utilizes shape memory materials in the specific field of eyeglasses, and Utilizing various states of composite shape memory metals to achieve desired flexibility, shape memory properties, or These two properties of the material exhibit composite properties. stop Furthermore, the present invention can be used in situations where strength and shape memory properties are required instead of flexibility. However, the aim is to utilize shape memory materials.

In the latter case, the peripheral edge of the lens is surrounded and the lens is placed inside the peripheral edge. The above material can be used as a gripping frame, or the main frame can be Also used as shape memory rivets, screws and clamps for attaching vines. It is. Alloys with shape memory properties and/or elasticity can be used to create tendrils or It can be used as a hinge for attaching to a frame or related parts.

Alloys with shape memory properties and elasticity are produced by properly forging martensitic alloys. The material retains some shape memory properties. The material also has some elasticity. Therefore, it is made of materials such as those mentioned above. This applies even if the part is deformed beyond its elastic limit (but less than 8%). The deformation can be restored by shape memory properties. On the other hand, the above materials If the deformation rate exceeds 8%, the deformation will be maintained as it is; There is some spring force in the range where the ratio does not exceed 10%, and a 10% change Part of the shape ratio partially returns to a deformation ratio of 6%, which results in a composite A material with specific properties can be obtained.

Note that material forms other than those described above can also be used. For example, Nitinol and Spring Ste. When used in combination with stainless steel to hold the edge of the lens, it is possible to grip the lens. You can keep it or cancel it.

Shape memory metals that can be used in the present invention include nickel-titanium alloys, nitinol, Alternatively, it contains a martensitic transition material known as Cu-Zn-AL. be caught.

Shape memory metals differ significantly from shape memory plastics in a number of ways. both It is also possible to plastically deform the memorized shape, and also to transfer or transform the memorized shape. or to the memorized shape by bringing it to the restoring temperature (e.g. by applying heat). shape-memory gold mud typically does not support the deformation and restoration described above. It is durable enough to be used over many cycles, and is also durable enough to withstand many cycles, such as 0"K to 420K. Its characteristics allow it to recover within a narrow temperature range over a wide temperature range such as It is possible to choose the gender. On the other hand, heat-recoverable plastics are (a) low-cost; (b) the restoring temperature is typically above 100°C; It has characteristics. Therefore, metals are often unsuitable for use with plastics. This invention can be used in areas where strength, corrosion resistance, or aesthetic elements are lacking, such as when strength, corrosion resistance, or aesthetic elements are lacking. In many cases, the characteristics of shape memory safes are more effective, but shape memory Both safes and shape memory plastics can be utilized. These various Various types of eyeglass frames can be manufactured using the materials. Shape memory properties shape memory gold or shape memory plastic. A lock is used. Stable shape with high elasticity rather than shape memory has a superelastic state, for example in the case of some species of vines. Nitinol or similar materials are used. Both elasticity and shape memory properties Materials with properties, i.e. materials with composite properties, can be used to It is useful as a backing member support, and in cases where it is used as a vine or front piece.

Therefore, by using shape memory materials in eyeglass frames, completely new structures (e.g. For example, a completely rimless frame) will become possible, and the conventional structure will also be improved. It is.

Ease of finning, secure fixation, effective retention of lenses, parts and manufacturing cost This results in reduction of stress, improvement of appearance, etc.

Ischemia (7) Mlo-induced death FIG. 1 is an explanatory diagram showing the first embodiment of the present invention, and FIG. 2 is an explanatory diagram showing the first embodiment of the present invention. A sectional view showing an example of a deformable lens holding rim; Figure 3 shows another embodiment of the frame member and a cross section of the lens attached to it. side view, Figure 4 shows various states of martensitic and austenitic properties of the material. The graph shown in FIG. The explanatory diagrams, Figures 6, 7, 9, and 10 showing the general condition of the vines are as follows: A shape memory foil used to connect the temple to the rim as shown in Figure 5. Explanatory drawings showing different embodiments of the fastener, FIG. 8, are the fasteners shown in FIG. An explanatory diagram showing a state in which the zipper is expanded; FIG. 11 is an explanatory diagram of the fastener used in the embodiment shown in FIG. Figure 12 shows the configuration of a hinge when using shape-memory Nandos and bolts. Explanatory diagram Figures 13 and 14 show the nose pad and temple for the lenses of glasses, respectively. Front and side views showing installation status, Figure 15 shows how the lens is fixed during heat recovery. FIG. 16 is an explanatory diagram showing a shape-memory rim that rotatably holds the crane. An explanatory diagram showing the support member of the nose pad in the present invention, FIG. 17 is an explanatory diagram showing a hinge according to the present invention, and FIG. 18 is an explanatory diagram showing a hinge according to the present invention. It is an explanatory view showing one type of vine.

Description of the invention Referring to FIG. 1, glasses 100 having tourem 102 are shown. There is. The frame 102 has two rims 104 and 106 and a nose bridge 10. 8, and the tendrils 110 and 112 extending from the rims 104 and 106, respectively. have. The temples 110 and 112 are placed over the ears of a wearer of glasses (not shown). The bridge 108 extends to the rear so that it can be worn on the wearer's nose. It looks like this.

In FIG. 1, the rim 104 is shown in a contracted configuration; 104 contacts and tightly adheres to lens 114. 104' in Figure 1 is The shape of the rim 104 when expanded outward with respect to the lens 114 is shown. . Similarly, the rim 106 is shown expanded relative to the lens 116.

Rims 104 and 106 are made of a material with shape memory properties, such as, but not limited to, , martensitic transition metal with Kkel titanium alloy, Nitinol (Nitinol) ), various aluminum brass, copper alloys, or other known alloys), etc. In the example shown in the figure, which is made of heat-recoverable plastic, for example, the above shape A memory material has a shape that it should restore to when sufficient heat is applied to it; It is formed so that the shape to be memorized is given to it. That is, the above-mentioned shape memory material The material is plastically deformed and then assumes the memorized shape when it is heated. be restored. In the case of metals, this memory property occurs when heat is applied to the metal or alloy. changes in morphology (e.g. austenitic and martensitic states) It is said that this is caused by the change between the state and the state.

The rim 104 or 106 is plastically deformable and then the rim 104 or 106 is It is possible to restore the memorized shape by placing 106 under an appropriate temperature. . The transition temperature of shape memory materials is the same as that of shape memory metal materials and shape memory plastics. The materials are known in their respective technical fields. Immediately transfer the rims 104 and 106 As a method for achieving the temperature at which the rims 104 and 106 are restored, the temperature around the rims 104 and 106 is If the rims 104 and 106 are metal, electrical current may be passed through them. heating, induction heating, or alternatively using other temperature control techniques. can be done. Technology for controlling the temperature of the rims 104 and 106 as accurately as possible. It is recommended that the rim be immersed in water at a suitable temperature, preferably e.g. It will be done.

In one working configuration, the rim 104 shown without a dash in FIG. The shape corresponds to the shape to be stored. In contrast, it is indicated with a dash. The rim 104' is shown in a deformed state. In the above transformed state , the rim 104' is sufficiently large that the lens 114 can be inserted therein. It has a large size. When the rim 104' is heated, it contracts and its inner circumference Surface 120' is brought into tight contact with lens 114.

The rate of contraction of the rim 104' is controlled by the heat applied to the rim 104'. can be precisely controlled by (The above work type is related to metal restoration. It should be noted that this is applicable to all embodiments of the present invention. )the above By heating the rim 106 according to the first working configuration, the rim 106 is heated. It is likewise possible to hold it in contact with the lens 116. .

In another mode of operation, the link shown without the dash in Figure 1 This corresponds to a state in which the frame 104 is deformed. In this form, the rim 104 is By heating it is restored to the memorized shape shown at 104'.

Therefore, in this configuration, insertion and removal of the lens 114 is performed using the rim 104'. executed when in its memorized shape and also by the deformed rim 104. The lens 114 is gripped by the lens 114.

Referring now to FIG. 2, there is shown a preferred embodiment of a rim 200 according to the present invention. A cross section is drawn. The cross section is C-shaped, and the longitudinal direction of the rim 200 is A groove 202 is formed along the groove. The radius of the groove 202 is selective. This allows the lens 204 to be increased or decreased. Each can be released or retained. As mentioned above , the release or retention is achieved by restoration to the memorized shape. The other operation is achieved by plastically deforming the radius of the rim 200. It is designed to be completed. If necessary, spring bias can be applied to the grooves. In the case where the radius r of the groove is increased by causing deformation to decrease the radius, If so, it may be heated to the restoring temperature.

Considering FIG. 2, holding the lens 204 (only or primarily by the edges 206 and 208 of the rim 200, or (bl above) This is done by friction against the inner peripheral surface of the rim 200 along with the edges 206 and 208. It will be done.

As shown in FIG. 2, the rim 200 has an inner layer 212 and an outer layer 214. ing. The inner layer 212 has longitudinally extending edges 206 and 208. However, in the present invention, the outer layer 214 also has a layer for holding the lens. (In this latter embodiment, an edge portion may be provided as shown in FIG. 1 above. The circumference of the C-shaped layer 214, that is, the length of the arc, is the length of the circumference of the inner r5212. It is formed so that it is longer than the length. ) Similarly, both layers 212 and 214 Therefore, the lens 204 may be held. Any of the above shown in Figure 2 In some cases, either the inner layer 212 or the outer layer 214 has shape memory. made of materials. In that case, the other layer is preferably SST or other suitable material. Made of suitable metal. If the outer layer 214 is made of shape memory material , the rim 204 is preferably in contact with the lens 204 when it is heated. , configured to combine. On the other hand, if the inner N212 is a shape memory material, If the rim 204 is heated and assumes the shape stored therein, the lens is configured to open away from the housing 204 . Therefore, immerse the rim 200 in warm water. This allows the eyeglass wearer or the treating physician to remove the fixed lenses during cooling. 204 can be removed. As mentioned above, the rim with a C-shaped cross section is, for example, It may be circular as shown in Figure 1, but it may also be a partial rim in the shape of a half-moon. It's okay. Alternatively, if desired, the rim 200 is made of a shape memory material. It may consist of a single layer.

If the rim is partial, as in the latter case, it may be A similar lens configuration is desired, in which case materials with different properties, i.e. For example, materials having different transition temperatures, stress characteristics, etc. are used.

Referring to FIG. 3, in the cross-sectional view, there are recesses 302 on both sides along the outer periphery. A lens 301 is shown with lenses 303 and 303 formed thereon. Frame member with C-shaped cross section 304 is arranged along the outer periphery of the lens, and is inserted into the recesses 302 and 303. It has edge portions 305 and 306 that can be rounded.

In this case as well, a rim like the one shown in Figure 2 can be used, but it is preferable A rim made of a single material with shape memory properties is used. In this case, Elasticity is not the main factor, rather strength is the main factor, and the grooves above are It plays the role of firmly holding the In cases where elasticity is similar to memorability In that case, complex characteristics as shown by curve F in Figure 4 may be necessary. A material having the following characteristics is used. The rim 300 having a C-shaped cross section is not necessarily shown in the figure. It doesn't have to be circular, as long as it can perform the same function, it can be smaller. It may be of any shape.

Next, referring to FIG. 4, the figure shows the results obtained by applying various treatments to the material. A graph showing the different properties of Nitinol is shown. It is. The materials represented by these graphs contain titanium in atomic percentages (by It contains about 49.9% to 51.5% of aton+ic weight) It is.

Graph A in Figure 4 shows a state in which the material is at a temperature sufficiently higher than its transition temperature; That is, it shows a material in an austenitic state. The above materials have shape memory properties. As expected, it has extremely high strength and is difficult to bend.

Curve B shows the superelastic state. The temperature of the material shown in curve B is its transition temperature. However, the material is in the austenitic state. child Under these conditions, as long as the deformation rate of the material does not exceed approximately 6%, The properties follow curve B, the material transforms into a martensitic state when the stress is relieved. Also, when released from stress, it returns to the austenitic state and restores its original shape. 0 The material represented by curves A and B does not have shape memory properties, if When these materials reach a deformation rate of about 8% or more, they return to their original state. be unable to do so.

Graph C then represents a material that is in the martensitic state and therefore has shape memory properties. Materials shown. When the material is subjected to stress that does not exceed a deformation rate of approximately 8%. , the material reaches a point on the above curve, and when the stress is removed it returns to the above curve. The point on the line is reached, near the transition temperature from the original martensite to austenite. It remains in that state until it is heated to a temperature of . Initiation of martensitic transition In the temperature range from returns to its original shape and develops shape memory properties.

Curve F shows a further different function of the material.

If the above material is stressed along curve C to point G, then When the stress is removed, the material deforms at point H along the coordinate axis, i.e. the abscissa. Return to the position and maintain that state. If the properties of the above materials are such that their transition temperature is 50℃, and if the material has been hardened, this is its transition temperature. When heated above, the material becomes a point on the deformation rate coordinate axis! Restores the shape shown in The material is then returned to its original state, with a deformation rate of 4% to 6%. It follows curve F, which shows the phenomenon of complex characteristics.

Although we have only discussed nitinol here, there are also additives, heat treatments, hardening treatments, etc. Its characteristics change in various ways depending on the influence.

Furthermore, Cu-ZnAl or copper-based alloys or other similar alloys In the present invention, each unique material has various properties similar to Nitinol. It has many fields of use. Literature related to these includes, for example, “Kirk-Oth mi" 5 Encyclopedia of Chemical Techno logic, John Wiley & 5ons, Th1rd Editio 5hape, Mem.

ry　A11oys　 There are products that exhibit similar characteristics, but at this stage they are not adaptable in terms of price. does not have

Next, referring to FIG. 5, the temple 500 of the eyeglass frame is shown in the rim of the frame. 502 shows the state in which it is fixed using a fastener 504 in detail. Figure 5 , a shape memory member 506 having a U-shaped cross section extends from the rim 502. It is shown. The end portion 508 of the temple 500 is inserted into the shape memory member 506. Ru. As shown in FIG. 5 (when the shape memory member 506 is closed, the pivot portion The temple 500 and the shape memory member 506 are rotatably coupled by the material 510. Ru. Shape memory member 506 is shown as having a stored shape thereon. Shape memory The member 506 is placed at a low temperature (e.g., a mixture of dry ice and Freon) and its side walls are removed. When deformed by spreading to the side, the vines 500 are shaped like the shape memory member 5. The connection with 06 is released. The crane 500 has the member 506 with its markings. By returning to the memorized shape, they are rotatably connected. like this In some embodiments, shape memory members are used, such as by heating to room temperature. It returns to the initial position.

FIG. 6 shows a fastener 560 open at both ends, which shows a cross-section of the fastener 560. It has an H-shape, that is, a shape in which two U-shapes are combined. Above The snare 560 crosses from one side wall 524 toward the inside +Ull at both ends thereof. It has a protrusion 562 that extends so as to extend. The other side wall 5 of the fastener 560 66 is deformable so that the distance between it and the protrusion 562 increases, and the side wall 5 66, can be restored by heating it to its restoration temperature.

This fastener 560 can be used to connect the rim and temple as shown in FIG. I can do it.

The operation of the fastener 560 shown in FIG. 6 is as shown in FIGS. 7 and 8. The operation is similar to that of a fastener 570 having a single open end. Single opening above A fastener 570 made of shape memory material with a lip is shown closed in FIG. It is shown in a closed state. The temple end 572 of the glasses was inserted into the opening end. In this state, the protrusion 574 is inserted into the hole 576 formed in the distal end 572 of the temple. A rotatable connection is thus formed. FIG. 8 shows the above-mentioned fastener 57. 0 is shown in the open state, and in this state, the distal end 572 of the temple is inserted. Alternatively, it can be removed.

Thus, in FIGS. 7 to 9, for example, the yoke-shaped member 570 is on the side of the main frame and clamped to a member such as end 572 on the main frame. Alternatively, the bin 574 may be configured as a single bin. However, the two legs of the U-shaped or yoke-shaped member may be A bottle with a length half the length of the above bottle is protruded from each, and this is connected to the member. 572 may be fitted into the hole 576. Or, with the above crane The frame member and the two members are connected by mutually facing bottles or hemispherical protrusions. The two members may be coupled by meshing with opposing holes provided in the other member.

FIG. 9 shows another different type of fastener 580. This example In this case, a protrusion 674 is placed on the U-shaped shape memory member 582 as shown in FIG. Instead, two male members 586 are placed across the distal end 584 of the temple. and can be received on the U-shaped member 582 in correspondence with the male member. A female member 588 is provided. As in the case of the embodiment shown in FIGS. 7 and 8, A rotatable connection can be achieved by opening and closing the member 582. It is something that

In the embodiment shown in Figure 10, rivets or screws made of shape memory material The joint is designed to be rotatable. That is, the end portion 592 of the vine and When these are aligned, the screw 590 is inserted into the hole drilled in the U-shaped member 594. It is screwed in, or if it is a rivet, it can be easily pushed into the hole. It has become so. At the time of return, the screw or stud 590 expands and the U It is firmly connected to the letter-shaped member 594.

If member 590 is a stud, it may have the shape of a stud, for example as shown in FIG. It can be done. The stud 590 fits into the recess 1001 provided in the member 582. It has a head 1000 that can be used. Split shank 1 from the head 1000 above 002 expands to form hole 1003 in member 594 and the distal end of the vine aligned therewith. It is designed to be inserted through the hole 1004 of. -i of the above stud 590 is slightly outside It has a leg portion 1005 that expands to the side, and this is the lower side of the U-shaped member 594. It is adapted to be hooked onto the top surface of a shoulder portion 1006 formed on the leg. Response When a force is applied, the member 590 is connected to the temple and the U-shaped member 5. 94 and are easily fitted into holes drilled and aligned with each other. This is When expanded, the legs 1005 are locked into the recesses 1006, and Join to the side walls of the above crane and the lower U-shaped member to lock these members together It is something to do.

By crushing the edge portion of the leg 1006, the stud can be reset and pulled. The heat recovery system used in the embodiments shown in Figures 5 to 11 can be As original materials, all types of shape memory materials or combinations of the above-mentioned properties can be used. can be used, especially in the embodiments shown in FIGS. 10 and 12. In this regard, the studs or screws can be snapped into place. screw For this type of construction, assemblage materials are also available.

Therefore, in the embodiment shown in FIG. 9 and FIG. 1O, the stud or screw 590 is installed so that it retracts from the member to be connected without protruding from it, and This will prevent any part of the studs or screws from getting caught or hitting surrounding objects. Make sure you don't overdo it. However, even in that case, the above studs or screws may be crushed. Make sure that the screws do not loosen or even fall off.

FIG. 12 shows a screw and NAND combination 600, which is attached to a lens 600. It is designed to be fixed by inserting it through the 02 or temple. As shown, screw 6 03 passes through the rim 604 and lens 602 and screws into the corresponding nut 606. It will be done.

The screws 603 and/or the screws 7) 606 are made of shape memory material. screw 60 If 3 is a shape memory material, it will shrink when inserted into the NAND 606. It is desirable that it be in a good condition. Also, if Nando's is made of shape memory material It is desirable for the nand to be in an expanded state when the screw 603 is inserted into it. Delicious. Therefore, upon restoration, the screw 603 expands longitudinally and/or Alternatively, the nut 606 contracts radially, thereby forming a tight connection between the two. It will be done. The amount of contraction and/or expansion is predetermined by the screw 603 and/or nut 606. can be easily controlled by the shape to be memorized. Read more about these elements. It is recommended that it be retracted without extending it. Make glasses without rims A similar concept can also be applied to cases where

The configuration shown in Figures 13 and 14 is adopted instead of the configuration shown in Figure 12. It is also possible. As shown in these figures, a relatively small arched rim The lens is fixed at the temple and nose pad portion using a material. concrete In this case, the shape memory members 1301 and 1302 preferably have an angular C-shaped cross section. It is formed in a U-shape and fits the curve of the outer periphery of lenses 1303 and 1305. They are each formed in an arch shape to allow for In addition, the above-mentioned lens desirably Grooves are formed on the outer periphery of both sides to accommodate the C-shaped member. That is, A thin protrusion 1307 is formed on the outer periphery of the lens 1303 by m 1304 and 1306. form. The C-shaped member is fixed to the protrusion 1307 and is shown in FIG. It can be a composite type or a combination type shown by curve F in Figure 4. This grooved structure can also be used in the embodiment shown in FIG. like this Materials with special properties have special uses, such as elasticity, which can be used to prevent glasses from colliding with something. This is true if the nose pad is bent! It is righteousness. Deformation within a range not exceeding 8% does not maintain the deformation, but when the deformation reaches about 10% or less, If the deformation is maintained as it is (under such circumstances, there will be a very large change) It is formality. ), the deformation is restored by heating the member.

Referring again to FIG. 13, temples 1307 and 130B are connected to hinges 1309 and 1. Lenses 1303 and 1305 by members 1311 and 1312 via 310 Fixed. The above members 1311 and 1312 are provided with hinge parts. It is substantially the same as members 1301 and 1302 except for. Also, condensation on the lens The matching method is also the same.

The above members 1301, 1302, 1311 and 1312 are shown in the figure for ease of understanding. This is a greatly enlarged drawing, but in reality it is a solidly constructed eye with virtually no rim. Constructed to provide a mirror and to allow easy replacement of defective parts It becomes.

FIG. 15 shows an eyeglass frame 900 having shape memory rims 902 and 904. is shown, and the rims 902 and 904 are heated to their restoration temperature. Sometimes they contract radially. During restoration, the rims 902 and 9 When the radius of 04 decreases, lenses 906 and 908 inserted inside it become rim It is combined with 902 and 904, and at the same time, the cranes 910 and 912 are also rotatable. be combined. Specifically, the protrusions 914, 916 and 918, 920 are the vines 910. and fit into the recesses or holes provided in 912, respectively. Further referring to FIG. 15, the temples 910 and 912 are made of stainless steel ( rims 902 and 90 as shown. 4 is hinged.

Alternatively, the bond may be made of a thin Nitinol material with sufficient flexibility and good fatigue properties. It may also be configured with a large number of sections.

That is, instead of using a multi-piece hinge, the rim can be used as shown in FIG. Lengths that can be bent between 902 and 904 and between vines 910 and 912, respectively forming a rotatable bond by interspersing Nitinol plates with is possible.

Next, FIG. 16 will be explained. The nose pad 700 is a support portion extending from the rim 702. 704 to the rim 702.

Each nose pad 700 is attached to a respective support 704 by a memory fastener 706. 15. The fastener 706 is secured as shown in FIG. Due to its shape, the support 704 is opened sufficiently so that it can be inserted or removed. It is possible to transform it. When this is restored, the fastener 706 is It surrounds the support 704 and is coupled thereto.

The materials for these nose pads are made of materials that can be bent and memorized beyond their limits. The material shown in curve F should be used.

Next, to explain Figure 17 in detail, the figure shows a hinge for joining the vines. It is shown. In this embodiment, the end portion 1400 of the vine 1401 and the frame Deep recesses 1404 and 1405 are formed in the extension portion 1402 of the beam 1403, respectively. It is.

Nitinol is temporarily attached in the recesses 1404 and 1405 as shown by curve F in FIG. Insert each material treated to have such properties and expand it. When placed, it is tightly fixed to the inner surface of the recess.

In this form, in order to prevent deformation from remaining permanently on the plate, the deformation rate must be should not exceed 10%.As a result of considering this point, we found that In order to maintain an appropriate pressing force, an elastic modulus with a deformation rate of 6% to 8% is appropriate. It has been found. When the above board is deformed in the range of 8% to 10%, By heating it, it can be restored to its original shape. Reduces the possibility of excessive deformation In order to make the above It is desirable to ensure that deformations in both directions from a set angle are kept to a minimum.

The plate can also be riveted to the frame and temple.

It is also advantageous to use Nitinol or a similar material as the above-mentioned vines. In such a case, the above material shall have shape memory properties, and this may be considered flexible. It is preferable to have a plastic cover with a It is also possible to use plastic material, in which case the surface can be covered with plastic. Stick is a heat-resistant plastic that can be cut to temperatures to restore it to its memorized shape. Must be a lock.

Referring now to FIG. 18, the vine 1700 shown therein is a U-shaped nitinol or a member 1701 made of a similar material, and the inside thereof is filled and attached. and a plastic insert 1702 that contacts the user's head.

If the length of the vine is long, use the Nitinol member as a single-shaped beam, or A decorative protrusion 17o3 is provided to bulge outward as shown by the continuous line in the figure. It's okay. In such a case, the grooves mentioned above are omitted and the entire vine is covered with plastic. It is also possible to cover it with a block. Furthermore, in the groove member 1701 A bendable leg is provided and configured to surround the SST insert member. , which may be adapted to form an elastic member having memory properties. If a vine with shape memory properties is required, marten, which is the weakest state of the material, may be used. Use site condition materials. In that case, as the insert member 1702 shown in FIG. is a thin plate-like material that can add strength to the overall structure (however, the memory of the shape memory material mentioned above It is sufficient to use <, ), except for those that are strong enough to impair the effect.

It should be noted that those skilled in the art will be able to make many other modifications and improvements based on the above explanation. Examples can easily be thought of.

Accordingly, such modifications and improvements may be included in the invention as defined in the following claims. It falls within the scope of light. That is, for example, the above rim is an independent rim. Instead of (one-dimensional plastic or a circular or Of course, it may also be a metal wire or metal piece housed within a ring-shaped member. It is. Furthermore, plastics (with or without shape memory properties) Frame rims with various coatings and precious metals as required Alternatively, it may be used for other parts.

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Claims (1)

[Claims] 1) Memory from plastically deformed state by bringing to restoration level temperature It has a shape-memory rim that can be restored to its original shape. The rim has a substantially C-shaped cross-section on its inner circumferential surface, so that A groove is formed along the inner circumferential surface of the rim, and the groove is formed along the inner circumferential surface of the rim. The groove allows a lens to be inserted into the groove when the rim is in the deformed state. said rim formed along said inner circumferential surface of said rim and has a radius large enough to The groove is inserted into the groove when the rim is restored to its memorized shape. having a sufficiently small radius to allow the rim to engage and hold the lens; A frame for eyeglass lenses featuring: 2) The shape-memory rim is formed to surround only a portion of the lens. 2. A frame according to claim 1, wherein the frame has an open rim. 3) The lens has a groove for receiving at least one end of the C-shaped rim. A frame according to the first or second item of the desired scope. 4) Grooves are formed on both sides near the edge of the lens to receive both ends of the C-shaped rim. A frame according to claim 3. 5) Claim 3, wherein the rim covers only a short circular arc section of the lens. The frame shown. 6) A pair of short arc-shaped rims are located near the temple and the nose pad of the above lens. 6. The frame according to claim 5, which grips the frame. 7) The rim according to claim 2 or 5, wherein the shape-memory rim also has elasticity. flame. 8) A frame according to claim 3, wherein the shape memory rim also has elasticity. 9) Claim No. 9, wherein said shape-memory rim is made of a martensitic transition metal material. The frame described in item 1. 10) Claim 1, wherein the shape-memory rim is made of a nickel-titanium alloy. or the frame described in paragraph 9. 11) The rim is spring-biased inward along its radial direction; The lens inserted into the groove is pushed inside the groove by the spring force. is held in contact with a wall surface, and In its memorized shape, the rim has a radius of the groove along the inner wall surface. Claim 1: The lens is large enough to allow the lens to be inserted into and taken out from the lens. Frame as described. 12) Lens and A temple provided close to the lens; and a temple provided close to the temple and the lens close to the temple. and a vine fastener provided at a position where the vine fasteners can be connected to each other. The fastener deforms in response to being heated to its restoration temperature. It consists of a shape-memory temple fastener that can be restored to its memorized shape. , The above-mentioned shape-memory temple fastener has a memorized shape that connects to the above-mentioned temple. It has a closed shape so that the lenses close to each other can be combined with each other, and The shape-memory temple fastener described above has a shape-memory vine fastener that is similar to the above-mentioned vine in its deformed shape. characterized by having an open shape so as to be able to release the coupling of the lens in close proximity to the lens. eyeglass frames. 13) The above-mentioned temple fastener has elasticity and shape memory properties. Frame described in range item 12. 14) The above-mentioned vine is a shape-memory vine that can be deformed from the shape stored therein. and bring the shape memory vine to its restoring temperature. 13. The eyeglass frame according to claim 12, which can be restored to its shape. 15) Claim 12, wherein the vine has elasticity and shape memory properties. Frame as described. 16) The lens has a nose pusher, and one end of the nose bridge A bridge coupling member is provided in a form extending from the When the bridge coupling member is restored to its memorized shape, it closes and Combines with one of the lenses and also opens when deformed from the memorized shape above. The eyeglass frame according to claim 12, wherein the combination with the one lens is released. . 17) Shape memory material in martensitic state and the above material restores its shape memory a reinforcing member capable of being bent by the material when heated to a temperature; Glasses vine consisting of. 18) The material is formed to have a groove, and the reinforcing member is inserted into the groove. The vine according to claim 17. 19) Shape memory material in martensitic state and the above material restores its shape memory a reinforcing member capable of being bent by the material when heated to a temperature; A gripping member consisting of. 20) Claim 1, wherein the reinforcing member exhibits shape memory properties when brought to a low temperature. The gripping member according to item 9. 21) Each rim surrounds at least a portion of a corresponding lens. A pair of rims, a pair of vines, One nose bridge, A pair of nose pads and first means for coupling one of said vines to one of said rims; a second means for coupling the other side of the vine to the other side of the rim; a third means for coupling the nose bridge between the pair of rims; fourth means for coupling one of said nose pads to one of said rims; fifth means for coupling the other side of the nose piece to the other side of the rim; sixth means for coupling each of the lenses to each of the rims surrounding them; At least one of the first to sixth coupling means has shape memory properties and elasticity. an eyeglass frame for holding a pair of lenses, the eyeglass frame comprising: a fastener for holding a pair of lenses; Room. 22) The above-mentioned vine is a shape-memory vine that can be deformed from the shape stored therein. The eyeglass frame according to claim 21. 23) The nose pad has a support, and the support has shape memory properties and elasticity. The eyeglass frame according to claim 21. 24) The rim includes a first layer having a C-shaped cross section and a second layer having a C-shaped cross section. the first layer is arranged around the second layer, and the first layer is arranged around the second layer; Claim 1, wherein either the first layer or the second layer comprises a shape memory material. The eyeglass frame described in item 1. 25) said first layer comprises a shape memory material, said first layer being memorized therein; The radius of the groove in the rim decreases in response to being thermally restored to its shape. The eyeglass frame according to claim 24. 26) said second layer is comprised of a shape memory material, said second layer has a memory stored therein; The radius of the groove of the rim increases in response to being thermally restored to its shape. The eyeglass frame according to claim 25. 27) The first means above is Consists of a split shaft having a head and a pair of legs, The shaft is opened in each connecting member of the rim and the temple and is mutually connected. are inserted through the holes aligned in the same manner, The shaft has shape memory properties, The legs of the shaft are heated to a temperature that causes them to expand into the memorized expanded shape. characterized in that it expands laterally when brought into engagement with the connecting member. 22. A frame according to claim 21, characterized in that it is characterized by: 28) The ends of the head and the legs are on the same plane as the outer surface of the temple and the rim. 28. The frame according to claim 27, which is aligned with. 29) The frame of claim 28, wherein said shaft is threaded.