WO2014024223A1 - Monture avant extrêmement élastique pour lunettes - Google Patents

Monture avant extrêmement élastique pour lunettes Download PDF

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Publication number
WO2014024223A1
WO2014024223A1 PCT/JP2012/005077 JP2012005077W WO2014024223A1 WO 2014024223 A1 WO2014024223 A1 WO 2014024223A1 JP 2012005077 W JP2012005077 W JP 2012005077W WO 2014024223 A1 WO2014024223 A1 WO 2014024223A1
Authority
WO
WIPO (PCT)
Prior art keywords
front frame
highly elastic
rim
reinforcing core
resin
Prior art date
Application number
PCT/JP2012/005077
Other languages
English (en)
Japanese (ja)
Inventor
増永　悟
Original Assignee
増永眼鏡株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 増永眼鏡株式会社 filed Critical 増永眼鏡株式会社
Priority to PCT/JP2012/005077 priority Critical patent/WO2014024223A1/fr
Publication of WO2014024223A1 publication Critical patent/WO2014024223A1/fr

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    • 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
    • G02C5/02—Bridges; Browbars; Intermediate bars
    • G02C5/06—Bridges; Browbars; Intermediate bars with resilient means

Definitions

  • the present invention can improve the front frame of the eyeglasses, and in particular, can prevent the lens from falling off and the appearance from deteriorating when the temple is expanded without impairing the fit and durability of the highly elastic resin.
  • the present invention relates to a highly elastic front frame of glasses that is not restricted unnecessarily.
  • the plastic frame of glasses generally used a cellulosic resin (celluloid or acetylcellulose), but recently, a plastic with more elastic properties (for example, polyamide resin (PA) or Polyphenylsulfone resin (PPSU), polyetherimide resin (PEI), etc.) are also increasing.
  • a plastic with more elastic properties for example, polyamide resin (PA) or Polyphenylsulfone resin (PPSU), polyetherimide resin (PEI), etc.
  • the method of suppressing deformation by bonding a blow bar to a lens not only requires an advanced bonding technique, but also cannot be used because the adhesive is likely to peel off due to aging.
  • Patent Documents 1 to 3 a technique for increasing strength by embedding a metal core in a plastic frame is also known (see, for example, Patent Documents 1 to 3).
  • the purpose of this is to reinforce the frame by putting a highly rigid material inside so that the thin (or thinned) plastic frame is not easily bent or bent by an impact or the like.
  • the present invention has been made in view of the problems as described above, and the object of the present invention is to reduce the fit and durability of a plastic frame using a highly elastic resin without expanding the temple.
  • An object of the present invention is to provide a highly elastic front frame for spectacles that can prevent the lens from dropping off and the appearance from being deteriorated and that has a high degree of design freedom.
  • the present invention includes a full rim type or half rim type front frame 1 made of a highly elastic resin material having a bending elastic modulus of 4000 MPa or less and a bending strength of 70 MPa or more; and a bending rigidity larger than the rims 11 and 11 of the front frame 1;
  • a highly elastic front frame of the spectacles is constructed from the reinforcing core material 2 partially inserted directly above the lenses L and L of the left and right rims 11 and 11, When the left and right temples T and T connected to both sides of the front frame 1 are expanded, the bridge 12 and the wisdom 13 and 13 of the front frame 1 bend while the rims 11 and 11 are inserted by the inserted reinforcing cores 2 and 2. It is characterized in that it is possible to suppress elastic deformation.
  • the reinforcing core material 2 is made of a metal having a higher bending elastic modulus than the high elastic resin of the front frame 1 in order to sufficiently suppress the elastic deformation of the rims 11 and 11 when the temples T and T are expanded. It is desirable to use a material or a highly rigid plastic material having a flexural modulus of 1 GPa or more.
  • examples of the highly elastic resin used for the front frame 1 include polyamide resins, polyphenylsulfone resins, polyetherimide resins, etc., which have a bending elastic modulus comparable to that of the cellulose resin and a very high bending strength. Are preferably used.
  • the reinforcing core member 2 is not only used as a core member for increasing the rigidity, but also the fitting portion F for fitting the convex portion or groove portion on the outer periphery of the lens L inside the rim 11 of the front frame 1 or one of the fitting portions F. It can also be used as a part.
  • the reinforcing member 2 when the metal plate material used as the reinforcing member 2 is inserted into the groove portion of the rim 11, the reinforcing member 2 is press-fitted into the groove of the rim 11 by providing a notch 21 on one of the long sides of the metal plate material. At this time, it is possible to fix the reinforcing member 2 so as not to be detached from the rim 11 by allowing the highly elastic resin of the rim 11 to enter the notch 21.
  • the front frame 1 may be of a blow bar type, in which case the reinforcing core material 2 having higher bending rigidity than the blow bars 14 and 14 of the front frame 1 is used as the lens of the left and right blow bars 14 and 14.
  • the elastic deformation of the blow bars 14 and 14 can be suppressed by being partially inserted directly above the L and L, and the inserted reinforcing core 2.
  • the reinforcing core material is partially inserted in the upper part of the rim, so that the temple is more rigid (bent than the rim) when the temple is greatly expanded when wearing glasses. Since the elastic deformation of the rim can be suppressed by the reinforcing core material having a large elastic modulus), it is possible to solve the problem in use in which the lens falls off the rim.
  • the reinforcing core material is not inserted into the bridge or wi of the front frame, the elastic deformation of the bridge or wiping when the temple is expanded is not hindered by the reinforcing core material. Therefore, the function of the highly elastic resin frame that improves the fit and durability by bending can be sufficiently exhibited.
  • FIG. 3 is an X-X ′ sectional view and a Y-Y ′ sectional view showing a sectional structure of a highly elastic front frame in Embodiment 1 of the present invention. It is explanatory drawing in order to demonstrate the manufacturing method of the highly elastic front frame in Example 1 of this invention.
  • FIG. 6 is an overall front view, a cross-sectional view taken along line A-A ′, and a cross-sectional view taken along line B-B ′ showing a blow bar type high-elasticity front frame in Embodiment 2 of the present invention. It is sectional drawing showing the lens mounting structure of the highly elastic front frame in the modification of this invention.
  • Example 1 A first embodiment of the present invention will be described with reference to FIGS.
  • reference numeral 1 is a plastic front frame
  • reference numeral 2 is a reinforcing core
  • what is indicated by a symbol L is a lens
  • what is indicated by a symbol T is a temple.
  • a full rim type front frame 1 having left and right rims 11 and 11 for holding lenses L and L, a bridge 12 for connecting these, and a wisdom 13 and 13 for hinge-connecting temples T and T is provided. It is made of a highly elastic resin (see FIG. 1). In this embodiment, a polyamide resin having a flexural modulus of 1700 MPa and a flexural strength of 135 MPa is used as the highly elastic resin.
  • a reinforcing core 2 is partially inserted directly above the lenses L and L of the left and right rims 11 and 11 (see FIG. 2).
  • a metal plate material having a bending elastic modulus larger than that of the highly elastic resin is used for the reinforcing core material 2, and the metal plate material is embedded inside the rims 11 and 11 as shown in FIG. Both are integrated in the state.
  • the front frame 1 is formed in a shape in which a groove is formed on the inner peripheral surface of the rim 11, and this rim is formed.
  • a method of inserting and fixing the reinforcing core material 2 into the 11 groove portions, or a method of forming the reinforcing core material 2 in an embedded state by insert molding at the time of manufacturing the front frame 1 can be employed.
  • the reinforcing member 2 when the reinforcing member 2 is inserted into the groove portion of the rim 11 after being molded, the reinforcing member 2 is provided with a notch portion 21 into which the highly elastic resin of the rim 11 enters when the reinforcing member 2 is press-fitted into the groove of the rim 11. It is desirable that the reinforcing member 2 can be firmly fixed to the rim 11 by being provided on one of the longitudinal sides of a certain metal plate.
  • the front frame 1 when the left and right temples T and T are greatly expanded, it is possible to suppress the elastic deformation of the rims 11 and 11 by the rigid reinforcing core materials 2 and 2. Become. On the other hand, since the bridge 12 and the wisdoms 13 and 13 of the front frame 1 are greatly bent when the temple is expanded, it is possible to improve the fit at the time of wearing.
  • the fitting portion F is formed on the inner surface of the rim 11 by fixing the metal plate material that is the reinforcing core member 2 with the lower half protruding, so that the fitting portion F is formed. If the groove portion of the lens L is fitted to the portion F (the protruding portion of the metal plate material), the lens L can be fixed to the rim 11 using the reinforcing member 2.
  • the front frame 1 has a structure including brow bars 14 and 14 whose ends are connected to the bridge 12 and the ends 13 and 13 without directly holding the lenses L and L, respectively.
  • the lenses L and L are fixed to a fastening portion provided on the bridge 12 with a pin.
  • a reinforcing core material 2 having a bending rigidity larger than that of the blow bar 14 is partially inserted directly above the lenses L and L.
  • the present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the description of “Claims”.
  • the highly elastic resin any synthetic resin material having a bending property with a bending elastic modulus of 4000 MPa or less and a bending strength of 70 MPa or more can be adopted.
  • high-elasticity resins include polyamide-based resins (bending elastic modulus: about 1500-1700 MPa, bending strength: about 85-135 MPa) that have a high bending strength while having a bending elastic modulus similar to that of cellulosic resins. And polyphenylsulfone resin (flexural modulus: about 2400 MPa, flexural strength: about 90 MPa), polyetherimide resin (flexural modulus: about 3300 MPa, flexural strength: about 150 MPa), and the like.
  • the general bending properties of cellulose acetate are bending elastic modulus: about 800-2100 MPa, bending strength: about 30-50 MPa.
  • the front frame 1 made of high elasticity resin not only a full rim type and a blow bar type but also a half rim type (ny roll type) can be adopted.
  • a material other than metal can be selected as long as the material has sufficient rigidity to suppress elastic deformation of the rims 11 and 11 when the temples T and T are expanded.
  • a plastic material it is preferable to use a high-rigidity plastic having a flexural modulus of 1 GPa or more.
  • the fitting portion F formed on the inner side of the rim 11 of the front frame 1 can be formed into a groove shape.
  • the reinforcing member 2 is provided. It is possible to embed by shifting back and forth or embed in the groove. Further, the reinforcing core member 2 can be completely embedded without being exposed on the surface of the rim 11, and any of them belongs to the technical scope of the present invention.
  • the plastic frame of glasses has been required not only to be fashionable but also to be comfortable when worn, including a fit.
  • the highly elastic front frame according to the present invention is a useful technology that can maximize the functions of the highly elastic resin without causing problems in use or appearance, and therefore has an industrial utility value. Is very expensive.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

L'invention concerne une monture avant extrêmement élastique, pour des lunettes, qui est apte à empêcher, sans sacrifier l'ajustement ni la durabilité d'une monture en plastique faite en résine très élastique, que les verres ne tombent et que l'apparence ne se détériore lorsque les branches sont ouvertes, tout en permettant une bonne flexibilité de conception. La solution est une monture de lunettes extrêmement élastique qui comprend : une monture avant cerclée ou semi-cerclée (1) faite en résine très élastique ayant un module d'élasticité en flexion de 4 000 MPa ou moins et une résistance à la flexion de 70 MPa ou plus ; des éléments de base de renforcement (2) qui ont une plus grande résistance à la flexion que les cercles (11, 11) de la monture avant (1) et qui sont partiellement insérés dans les cercles droit et gauche (11, 11) immédiatement au-dessus des verres (L, L). Lorsque les branches droite et gauche (T, T) reliées aux deux côtés de la monture avant (1) sont ouvertes, l'arcade (12) et les pièces d'extrémité (13, 13) de la monture avant (1) se plient tandis que les éléments de base de renforcement insérés (2, 2) empêchent les cercles (11, 11) de se déformer élastiquement.
PCT/JP2012/005077 2012-08-09 2012-08-09 Monture avant extrêmement élastique pour lunettes WO2014024223A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/005077 WO2014024223A1 (fr) 2012-08-09 2012-08-09 Monture avant extrêmement élastique pour lunettes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/005077 WO2014024223A1 (fr) 2012-08-09 2012-08-09 Monture avant extrêmement élastique pour lunettes

Publications (1)

Publication Number Publication Date
WO2014024223A1 true WO2014024223A1 (fr) 2014-02-13

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ID=50067515

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PCT/JP2012/005077 WO2014024223A1 (fr) 2012-08-09 2012-08-09 Monture avant extrêmement élastique pour lunettes

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WO (1) WO2014024223A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015219488A (ja) * 2014-05-21 2015-12-07 株式会社タレックス 偏光眼鏡
WO2019153084A1 (fr) 2018-02-07 2019-08-15 Brent Sheldon Ensemble lunettes flexible
WO2024086918A1 (fr) * 2022-10-27 2024-05-02 Brent Sheldon Parties de cadre rigides intégrées pour lunettes souples

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6147926A (ja) * 1984-08-07 1986-03-08 アイメトリックス−システムズ　アクチエンゲゼルシャフト 眼鏡のフレームとその部品
JPH0224817U (fr) * 1988-07-30 1990-02-19
JPH0489911U (fr) * 1990-06-18 1992-08-05
JP2000292606A (ja) * 1999-04-02 2000-10-20 Fukui Koki Kk 樹脂製メガネフレーム
JP3086643U (ja) * 2001-12-11 2002-06-28 長谷川眼鏡株式会社 リムレスメガネ用止着ネジ、及びリムレスメガネ
JP2003021813A (ja) * 2001-07-10 2003-01-24 Nagai:Kk 装飾眼鏡部材

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6147926A (ja) * 1984-08-07 1986-03-08 アイメトリックス−システムズ　アクチエンゲゼルシャフト 眼鏡のフレームとその部品
JPH0224817U (fr) * 1988-07-30 1990-02-19
JPH0489911U (fr) * 1990-06-18 1992-08-05
JP2000292606A (ja) * 1999-04-02 2000-10-20 Fukui Koki Kk 樹脂製メガネフレーム
JP2003021813A (ja) * 2001-07-10 2003-01-24 Nagai:Kk 装飾眼鏡部材
JP3086643U (ja) * 2001-12-11 2002-06-28 長谷川眼鏡株式会社 リムレスメガネ用止着ネジ、及びリムレスメガネ

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015219488A (ja) * 2014-05-21 2015-12-07 株式会社タレックス 偏光眼鏡
WO2019153084A1 (fr) 2018-02-07 2019-08-15 Brent Sheldon Ensemble lunettes flexible
EP3750006A4 (fr) * 2018-02-07 2021-11-10 Brent Sheldon Ensemble lunettes flexible
WO2024086918A1 (fr) * 2022-10-27 2024-05-02 Brent Sheldon Parties de cadre rigides intégrées pour lunettes souples

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