KR20150124130A - Eyeglasses-nose-support using shape memory alloy - Google Patents

Eyeglasses-nose-support using shape memory alloy Download PDF

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Publication number
KR20150124130A
KR20150124130A KR1020140050551A KR20140050551A KR20150124130A KR 20150124130 A KR20150124130 A KR 20150124130A KR 1020140050551 A KR1020140050551 A KR 1020140050551A KR 20140050551 A KR20140050551 A KR 20140050551A KR 20150124130 A KR20150124130 A KR 20150124130A
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KR
South Korea
Prior art keywords
shape
pad
nose
shape memory
nose pad
Prior art date
Application number
KR1020140050551A
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Korean (ko)
Inventor
최승복
최승현
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인하대학교 산학협력단
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Priority to KR1020140050551A priority Critical patent/KR20150124130A/en
Publication of KR20150124130A publication Critical patent/KR20150124130A/en

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0433—Nickel- or cobalt-based alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/007—Alloys based on nickel or cobalt with a light metal (alkali metal Li, Na, K, Rb, Cs; earth alkali metal Be, Mg, Ca, Sr, Ba, Al Ga, Ge, Ti) or B, Si, Zr, Hf, Sc, Y, lanthanides, actinides, as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00—Constructions of non-optical parts
    • G02C5/008—Spectacles frames characterized by their material, material structure and material properties
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00—Constructions of non-optical parts
    • G02C5/12—Nose pads; Nose-engaging surfaces of bridges or rims
    • G02C5/122—Nose pads; Nose-engaging surfaces of bridges or rims with adjustable means

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

The present invention relates to a nose pad which includes a nose pad directly contacting a surface of a nose pad and a pad connector connecting the nose pad to the eyeglass frame, Wherein at least one of the pad connector and the connection arm is provided as a shape memory alloy, wherein the pad connector has a constant angle due to the skin temperature of the person, that is, the body temperature And the connection arm is subjected to shape memory processing so that its end portion is formed into a shape that can be caught in the fixed housing by the skin temperature of the person, that is, the body temperature.

Description

TECHNICAL FIELD [0001] The present invention relates to an eyeglass nose support using a shape memory alloy,

The present invention relates to the use of a shape memory alloy, and more particularly, to a spectacle nose pedestal which can be deformed and contracted due to the skin temperature of the wearer by using a shape memory alloy to be more reliably supported by the shape memory alloy.

The eyeglass nose pedestal is for supporting the upper part of the nose so that the eyeglasses do not flow. In the eye nose pedestal shown in Fig. 1, the nose pad 10 and the nose pad, which are in direct contact with the nose surface, And a pad connector 20. The nose pad 10 is usually made of silicon. In addition, the pad connector 20 is made of a metal material for gilt-eyed spectacles and made of plastic material for horn glasses.

The nose pad 10 and the pad connector 20 are fastened using screws or bolts 24. The nose pad 10 and the pad connector 20 are fastened with screws or bolts 24, A screw or a bolt 24 is fixed to the housing 21 and a connecting arm 12 is connected to the connecting arm 12 so that a part of the bolt 24 is inserted into the fixing housing 21 formed at one end of the pad connector 20, Through the holes (23) (13). A metal core 11 is embedded in the nose pad 10, and the connection arm 12 is extended outwardly from the metal core 11.

The general glasses nose pedestal having such a configuration can be frequently adjusted to adjust the angle according to the wearer's usage habits so that a part of the pad connector 20 or the connection arm 12 may deteriorate and break Is high. When the pad connector or the connection arm is broken, the nose pad is replaced. In this case, the operation of fastening the connection arm to the fixed housing is relatively cumbersome and inconvenient.

The present invention has been developed in view of the above-described problems of the prior art, and it is an object of the present invention to provide a shape memory alloy which is naturally deformed according to the shape of a user's nose according to the skin temperature when wearing glasses, The present invention is directed to providing a spectacle nose support.

According to an aspect of the present invention, there is provided a nose pad comprising a nose pad directly contacting a nose surface and a pad connector connecting the nose pad to the eyeglass frame, Wherein at least one of the pad connector and the connection arm is provided as a shape memory alloy, wherein a part of the connection arm is inserted into a fixing housing formed at one end of the pad connector, Wherein the shape memory processing is carried out so as to always maintain a constant angle, and the connection arm is subjected to shape memory processing so that its end portion is gathered into a shape that can be caught in the fixed housing by the skin temperature of the person, i.e., the body temperature.

In addition, the present invention provides a nose pad in a detachable form that is in direct contact with a nose surface, wherein the nose pad is formed in a rounded shape at a predetermined angle so that the nose pad can be fitted into a nose pad formed on the eyeglass frame itself In the nose pad, a shape memory processing is performed so that the nose pad is deformed or deformed to a predetermined angle by a human skin temperature, that is, a body temperature, and deformed into a constant shape.

The Ti-Ni-based shape memory alloy is obtained by forming a Ti-Ni or Ti-Ni-third element by a high-frequency induction melting method, an electron beam melting method, an argon An arc melting method or a plasma arc melting method in a vacuum or in an argon atmosphere and hot or cold working at 400 DEG C or below using the dissolved Ti-Ni or Ti-Ni-third element, and the hot or cold- The Ti-Ni alloy is subjected to a shape memory process by a mesophilic process, a low-temperature process, or an aging process. In the mesophilic process, a Ti-Ni alloy is fixed to a jig and heated at 400 to 500 DEG C for about 10 to 100 minutes, .

According to the above feature, the spectacle nose support of the present invention is deformed or deformed at a comfortable angle to be worn by the user due to the skin temperature when the glasses are worn due to the characteristics of the shape memory alloy, or is circularly returned at the shape- And the nose pads can be easily replaced because the nose pads can be easily replaced.

FIG. 1 is a view showing a configuration and a coupling shape of a conventional spectacle nose pedestal,
2 is a view showing a first embodiment of a spectacle nose support according to the present invention,
3 is a view showing a second embodiment of a spectacle nose support according to the present invention.

Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

In the following description of the present invention, the same reference numerals are used for the same or similar components throughout the entirety of the drawings, and detailed description thereof will not be repeated. It will be omitted.

Fig. 2 is a first embodiment of a spectacle nose pedestal according to the present invention. The structure of the spectacle nose pedestal provided in the gilt-augmented eyeglasses shown in Fig. 1 will be described. The eyeglass nose pedestal of the present invention can provide at least some of the pad connector 20 'and the core metal 11' of the nose pad 10 as a shape memory alloy. Preferably, in the case of the nose pad 10, the connection arm 12 'extended from the core metal 11' and drawn out to the outside is basically made of a shape memory alloy.

The shape memory alloy has a property that once a certain shape is memorized, it is returned to the shape before the deformation if it is heated to a suitable temperature even if it is deformed into various shapes. Ti-Ni-based, Cu-based, and Fe-based alloys such as Ti-Ni-based shape memory alloys are superior in shape memory effect and stability to other alloys. . Therefore, in the present invention, at least a part of the pad connector 20 'and at least a part of the core metal 11' in the nose pad 10, particularly the connection arm 12 ', is preferably manufactured using a Ti-Ni type shape memory alloy Do.

In general, Ti-Ni binary alloy among Ti-Ni based shape memory alloys is an alloy containing Ti and Ni in the same amount as the number of atoms, i.e., atomic ratio of 1: 1, and Ti-Ni alloy having atomic ratio of 1: 1 Is not only an alloy of Ti and Ni, but an intermetallic compound with a regular structure in which both atoms are alternately aligned. The weight ratio of Ti to Ni in the Ti-Ni alloy is 45% by weight and Ni 55% by weight because the specific gravity of Ti and Ni is different. In the present invention, the weight ratio of Ti to Ni is 48% Or less and a transformation temperature (martensitic transformation starting temperature: Ms) of 330 to 220 K is constantly maintained.

The Ti-Ni-based shape memory alloy used for manufacturing the core metal 11 'and the connecting arm 12' of the nose pad 10 and the pad connector 20 ' . For example, Ni can be replaced with Cu. In this case, it has been reported that the slip threshold stress is increased and the transformation history is decreased, thus greatly affecting the elastic behavior with shape memory characteristics. In addition, Nb may be added to the Ti-Ni alloy to provide the Ti-Ni-Nb alloy. In this case, the Nb is present in the pure Nb in the Ti-Ni and the transformation history can be greatly increased. It is also possible to selectively add a third element such as V, Cr, Mn or Co or a third element such as Hf, Zr, Pd or Pt, and the addition of V, Cr, Mn, Decreasing the transformation temperature and adding Hf, Zr, Pd, Pt, etc. increase the transformation temperature.

The Ti-Ni-based shape memory alloy having the above composition, which is used for manufacturing the core metal 11 'and the connecting arm 12' of the pad connector 20 'and the nose pad 10 according to the present invention, . ≪ / RTI >

First, the Ti-Ni or Ti-Ni-third element is dissolved in a vacuum or an argon atmosphere through a high-frequency induction melting method, an electron beam melting method, an argon arc melting method, or a plasma arc melting method.

Thereafter, hot or cold working is performed at 400 DEG C or below using the dissolved Ti-Ni or Ti-Ni-third element. In this case, the tensile strength of the Ti-Ni alloy by hot working shows that the tensile strength increases with temperature rise below 300 ° C, but when it exceeds 400 ° C, the tensile strength sharply drops and the elongation increases. Therefore, it is preferable that the hot working of the Ti-Ni alloy proceeds at a temperature of 400 DEG C or lower because the oxidation scale increases with increasing temperature. In cold working, it is not easy to work because of the effect of work hardening, but it is necessary to appropriately process the work and intermediate annealing process to reduce work hardening.

After the hot or cold working is completed, the shape memory processing is performed on the Ti-Ni type shape memory alloy. In shape memory processing, there are mainly middle temperature treatment, low temperature treatment and aging treatment, and the most widely used treatment is middle temperature treatment. The tempering treatment is performed by heating the alloy to 400 to 500 ° C in a jig and proceeding to a range of about 10 to 100 minutes depending on the product size. In the low-temperature treatment, the alloy is heated at a high temperature of 500 ° C or higher for the first time to homogenize the structure of the alloy, and after the alloy is formed, the alloy is stored at 200-300 ° C. The shape recovery property is lower than that of the mesophilic alloy.

Therefore, in the present invention, it is preferable that the shape memory processing of the Ti-Ni type shape memory alloy proceeds by a medium temperature treatment. At this time, the Ti-Ni-based shape memory alloy is fixed to the jig and heated at 400 to 500 DEG C for about 10 to 100 minutes to shape-store.

Meanwhile, the pad connector 20 'is subjected to shape memory processing so as to always maintain a constant angle at a predetermined temperature or more, and the end portion of the connection arm 12' is always in a constant shape at a predetermined temperature or more, Like shape so as to be engaged with the fitting groove 22 in the fixed housing 21 as shown in Fig. Preferably, the pad connector 20 'and the connecting arm 12' are subjected to shape memory processing so as to be deformed to a certain angle or shape by human skin temperature, i.e., body temperature.

When the core metal 11 'or at least the connection arm 12' of the pad connector 20 'and the nose pad 10 is made of a shape memory alloy, the pad connector 20' ) Is deformed or contracted at an angle that the user always wears due to the skin temperature of the person, that is, the body temperature, which is transmitted through the core metal 11 'and the connecting arm 12' So that it can be more securely worn and supported. In addition, since the body of the person is worn by wearing the eyeglasses, the end of the connecting arm 12 'is bundled into a shape that can be caught in the fitting groove 22 in the fixed body 21 like a sphere or a cube, So that there is no need to tighten the screws.

Fig. 3 is a second embodiment of a spectacle nose support according to the present invention, which is different from Fig. 1, and explains a structure of a spectacle nose support provided in the nose eyeglasses. The eyeglass nose pad 30 of the present invention is provided in a detachable form of the nose pad 10 "so that the nose pad 10" The fitting groove 16 is formed in the nose contact surface 15 in a rounded shape at a predetermined angle and the shape memory processing is performed so that the nose pad 10 "is deformed into a certain angle or shape by the human skin temperature, Core metal 11 "'.

In such a configuration, when wearing the glasses in a state where the nose pad 10 "is fitted and fixed in the nose pedestal 30 as shown in Figs. 3d through 3e through the fitting groove 16, The core metal 11 "'in the nose pad 10" is deformed and deformed at the shape-stored angle as shown in Fig. 3F so that the nose pad 10 "always maintains a comfortable or stable wearing angle by the user, It is possible to wear and hold the same.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the following claims.

10, 10 ": nose pad
11, 11 ', 11 "': core metal
12, 12 ': connection arm
15:
16, 22:
20,20 ': Pad connector
21: Fixed housing
24: Screw or bolt
30: Nose Support

Claims (7)

A nose pad directly contacting the surface of the nose pad, and a pad connector connecting the nose pad to the eyeglass frame, wherein a part of the connection arm extended outward from the core of the nose pad, Wherein at least one of the pad connector and the connection arm is provided as a shape memory alloy, wherein the pad connector is inserted into a fixing housing formed at one end of the pad connector. The method according to claim 1,
Characterized in that the pad connector is shape memory-processed so as to always maintain a constant angle at a predetermined temperature or more, and the connection arm is shape memory-processed so that its end portion is clumped in a shape capable of engaging with the fixed housing at a predetermined temperature or more. Pedestal. 3. The method according to claim 1 or 2,
Wherein the pad connector and the connection arm are deformed or deformed to a constant shape by a skin temperature of a person, i.e., a body temperature, to a predetermined shape. Wherein the nose pad is provided in a detachable form directly in contact with the surface of the nose pad, the nose pad is formed with a fitting groove in a nose contact surface in a rounded shape at a predetermined angle so as to be fitted to the nose pad formed on the eyeglass frame itself, Wherein the core metal is shape-memory-processed so as to be deformed into a predetermined angle or shape at a predetermined temperature or higher. 5. The method of claim 4,
Wherein the core metal is deformed or deformed to a constant shape by a skin temperature of a person, i.e., a body temperature, to a predetermined shape. The Ti-Ni based shape memory alloy is formed by a Ti-Ni or a Ti-Ni-based third element by a high frequency induction melting method, an electron beam melting method, an argon arc melting method, or a plasma arc melting method. And the hot or cold-worked Ti-Ni alloy is heat-treated at a temperature of 400 DEG C or less by using the dissolved Ti-Ni or Ti-Ni-third element, And the shape memory processing is performed by processing or aging processing. The method according to claim 6,
Wherein the tempering treatment is performed by fixing a Ti-Ni-based alloy to a jig and heating at 400 to 500 DEG C for about 10 to 100 minutes to shape-store the glass nose support.
KR1020140050551A 2014-04-28 2014-04-28 Eyeglasses-nose-support using shape memory alloy KR20150124130A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102049200B1 (en) * 2019-05-22 2019-11-26 방성미 Glasses using balance of weight

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102049200B1 (en) * 2019-05-22 2019-11-26 방성미 Glasses using balance of weight

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