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WO1997041480A1 - Lunettes ameliorees - Google Patents

Lunettes ameliorees Download PDF

Info

Publication number
WO1997041480A1
WO1997041480A1 PCT/IT1996/000089 IT9600089W WO9741480A1 WO 1997041480 A1 WO1997041480 A1 WO 1997041480A1 IT 9600089 W IT9600089 W IT 9600089W WO 9741480 A1 WO9741480 A1 WO 9741480A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
hinge
arm
spectacles
spectacles according
Prior art date
Application number
PCT/IT1996/000089
Other languages
English (en)
Inventor
Vittorio Tabacchi
Original Assignee
Safilo Societa' Azionaria Fabbrica Italiana Lavorazione Occhiali S.P.A
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 Safilo Societa' Azionaria Fabbrica Italiana Lavorazione Occhiali S.P.A filed Critical Safilo Societa' Azionaria Fabbrica Italiana Lavorazione Occhiali S.P.A
Priority to AU57772/96A priority Critical patent/AU5777296A/en
Priority to PCT/IT1996/000089 priority patent/WO1997041480A1/fr
Publication of WO1997041480A1 publication Critical patent/WO1997041480A1/fr

Links

Classifications

    • 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
    • G02C1/00—Assemblies of lenses with bridges or browbars
    • G02C1/02—Bridge or browbar secured to lenses without the use of rims
    • 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
    • G02C5/10—Intermediate bars or bars between bridge and side-members
    • 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
    • G02C5/22—Hinges
    • G02C5/2218—Resilient hinges
    • G02C5/2227—Resilient hinges comprising a fixed hinge member and a coil spring
    • 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
    • G02C5/22—Hinges
    • G02C5/2218—Resilient hinges
    • G02C5/2254—Resilient hinges comprising elastic means other than coil spring
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2200/00—Generic mechanical aspects applicable to one or more of the groups G02C1/00 - G02C5/00 and G02C9/00 - G02C13/00 and their subgroups
    • G02C2200/10—Frame or frame portions made from wire
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2200/00—Generic mechanical aspects applicable to one or more of the groups G02C1/00 - G02C5/00 and G02C9/00 - G02C13/00 and their subgroups
    • G02C2200/28—Coil spring twisted upon actuation

Definitions

  • the present invention relates to improved spectacles of the type including the characteristics specified in the preamble to the mam claim.
  • spectacle frames of extremely limited weight. These frames are produced with extensive use of materials which combine considerable mechanical strength with a relatively low specific weight. Typically, these frames are made of thin steel or titanium wires. Spectacle frames are also known which enable the arms to be opened out resiliently beyond a normal open condition by means of springs acting between the hinge elements by means of which the arms are articulated to the lenses. However, the bulkiness associated with these springs is normally irreconcilable with the thin sections of the arms and of the hinge element ⁇ necessary to achieve overall lightness of the spectacles.
  • the object of the present invention is to provide spectacles which are designed structurally and functionally so as to combine extreme lightness with a capability for the arms to be opened out resiliently beyond the normal open condition, thus eliminating the problems complained of with reference to the prior art mentioned.
  • Another object of the invention is to provide spectacles of which the structure enaoles the aforesaid result to be achieved and, at the same time, is reliable, strong and inexpensive.
  • FIG. 1 is a partial, exploded, perspective view of spectacles formed according to the present invention
  • FIG. 2 and 3 are a plan view and a side elevational view of a detail of the spectacles of Figure l, respectively.
  • a pair of spectacles of which a lens 2 and an arm 3 are shown partially, is generally indicated l, it being understood that the spectacles include a further lens and a further arm which are identical but are disposed m specularly symmetrical positions. Only the end section 4 of the arm 3 close to the lens 2 is shown, it being understood that the intermediate section and the opposite end are formed in conventional manner.
  • the end section 4 comprises a portion 4a substantially aligned with the intermediate section and a portion 4b which is bent in the manner of an elbow and has an eye 5 at its free end.
  • the arm 3 is hinged on the lens 2 by means of a first hinge element 6, a hinge pin 7 and a second hinge element constituted by the eye 5.
  • the first hinge element 6 is produced in the form of a spring or, preferably, of two helical winding portions 8a, 8b, each including at least one coil forming a seat for the hinge pin 7.
  • these helical windings also constitute resilient means for enabling the arms to be opened out resiliently beyond a normal open condition m the manner which will be explained below.
  • the first hinge element 6 also known, in Italian, by the term "nose” in the specific technical field, is formed from a single metal wire, for example, of spring steel, forming two eyes 9a, 9b at its opposite free ends; the eyes serve to house corresponding screws 10a, 10b extending through respective holes Ila, lib formed m the lens 2 and constitute means for attaching the hinge element 6 to the corresponding lens 2.
  • Each helical winding is connected to the corresponding eye 9a, 9b by an end portion 12a, 12b thereof forming a respective elbow 13a, 13b. Its opposite end portions 14a, 14b are -joined together in a substantially C-shaped configuration by means of a common bridge portion 15.
  • the portion 15 constitutes a resiliently yielding stop abutment for the arm 3 which bears thereon in the normal open position of the spectacles with the ability to move out further beyond the aforesaid position, making use of the ability to yield resiliently conferred on the abutment by the helical windings 8a, 8b.
  • the bearing of the arm 3 takes place by means of its elbow portion 4b and, by appropriate variation of the length of this portion, it is possible to vary the lever arm formed thereby in the loading of the spring of the first hinge element 6 so as to vary its resilient reaction.
  • first hinge element may be fixed to a lens-holding rim of a spectacle frame instead of directly to the lens.
  • first hinge element may be formed with a single helical winding, the second hinge element in this case being fork-shaped so as to enclose the aforesaid winding. Furthermore, it may be formed by the assembly of structurally independent elements rather than by deformation of a single metal wire.

Landscapes

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

Abstract

Les lunettes selon l'invention comprennent une paire de verres (2) et, pour chaque verre, une branche correspondante (3) reliée au verre (2) par une articulation qui comporte un premier élément charnière (6) fixé sur le verre correspondant (2) et un second élément charnière (5) fixé sur la branche correspondante (3). Le premier élément charnière (6) comporte un ou plusieurs enroulements hélicoïdaux (8a, 8b) formant un support pour un axe de charnière (7) et présentant une première extrémité fixée sur le verre (2) et une seconde extrémité opposée. Cette dernière constitue une butée d'arrêt résiliante pour la branche correspondante (3), ce qui permet d'ouvrir les branches de manière élastique au-delà d'un état d'ouverture normal.
PCT/IT1996/000089 1996-05-02 1996-05-02 Lunettes ameliorees WO1997041480A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU57772/96A AU5777296A (en) 1996-05-02 1996-05-02 Improved spectacles
PCT/IT1996/000089 WO1997041480A1 (fr) 1996-05-02 1996-05-02 Lunettes ameliorees

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT1996/000089 WO1997041480A1 (fr) 1996-05-02 1996-05-02 Lunettes ameliorees

Publications (1)

Publication Number Publication Date
WO1997041480A1 true WO1997041480A1 (fr) 1997-11-06

Family

ID=11332592

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1996/000089 WO1997041480A1 (fr) 1996-05-02 1996-05-02 Lunettes ameliorees

Country Status (2)

Country Link
AU (1) AU5777296A (fr)
WO (1) WO1997041480A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5073020A (en) * 1988-12-19 1991-12-17 Paul Jorn Lindberg Eyeglasses having oblong receiving means
GB2274728A (en) * 1992-07-17 1994-08-03 Murai Kk Spectacles
GB2281979A (en) * 1993-09-21 1995-03-22 Nakanishi Optical Corp Joints for spectacles sides
EP0661576A1 (fr) * 1993-12-28 1995-07-05 Mitsuo Kobayashi Lunettes sans monture
WO1995018985A1 (fr) * 1994-01-10 1995-07-13 Yok Konk Diep Lunettes sans bords
WO1996002014A1 (fr) * 1994-07-11 1996-01-25 Bottega D'arte In Firenze S.R.L. Monture pour lunettes sans cercles
EP0695962A1 (fr) * 1994-08-06 1996-02-07 Horikawa Co., Ltd. Méthode et mécanisme de rotation pour lunettes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5073020A (en) * 1988-12-19 1991-12-17 Paul Jorn Lindberg Eyeglasses having oblong receiving means
GB2274728A (en) * 1992-07-17 1994-08-03 Murai Kk Spectacles
GB2281979A (en) * 1993-09-21 1995-03-22 Nakanishi Optical Corp Joints for spectacles sides
EP0661576A1 (fr) * 1993-12-28 1995-07-05 Mitsuo Kobayashi Lunettes sans monture
WO1995018985A1 (fr) * 1994-01-10 1995-07-13 Yok Konk Diep Lunettes sans bords
WO1996002014A1 (fr) * 1994-07-11 1996-01-25 Bottega D'arte In Firenze S.R.L. Monture pour lunettes sans cercles
EP0695962A1 (fr) * 1994-08-06 1996-02-07 Horikawa Co., Ltd. Méthode et mécanisme de rotation pour lunettes

Also Published As

Publication number Publication date
AU5777296A (en) 1997-11-19

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