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WO2014037894A1 - Lunettes - Google Patents

Lunettes Download PDF

Info

Publication number
WO2014037894A1
WO2014037894A1 PCT/IB2013/058308 IB2013058308W WO2014037894A1 WO 2014037894 A1 WO2014037894 A1 WO 2014037894A1 IB 2013058308 W IB2013058308 W IB 2013058308W WO 2014037894 A1 WO2014037894 A1 WO 2014037894A1
Authority
WO
WIPO (PCT)
Prior art keywords
vertical
arm
spectacles
parallelepiped
elastic element
Prior art date
Application number
PCT/IB2013/058308
Other languages
English (en)
Inventor
Irene Chinaglia
Original Assignee
Nico S.R.L.
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 Nico S.R.L. filed Critical Nico S.R.L.
Publication of WO2014037894A1 publication Critical patent/WO2014037894A1/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
    • G02C5/22—Hinges
    • G02C5/2209—Pivot bearings and hinge bolts other than screws
    • 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
    • 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
    • G02C2200/12—Frame or frame portions made from sheet type material
    • 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
    • G02C2200/22—Leaf spring

Definitions

  • the present invention relates to spectacles.
  • a spectacles hinge comprises two parts, fixed to one end of the front and to the arm, respectively, articulated to one another by means of a screw forming a pivot which allows the arm to rotate and be folded against the front.
  • This configuration has disadvantages because the screw tends to slacken when it is subjected to repeated, frequent rotational movements as the arm is opened and closed, so that the spectacles may be worn or put away. It is therefore necessary to use a tiny screwdriver to tighten the screw. If the user does not have the appropriate tool, he may resort to a knife or other sharp object, which inevitably damages the slot in the screw head. The screw thus loses the ability to secure the arm to the front. The screw is often lost.
  • spectacles having hinges provided with cams and/or stops (“stop hinges”) which stop the rotation of the arms in the closed position.
  • the present invention aims to provide spectacles made up of a reduced number of components, that are simple and economical to manufacture and assemble.
  • the aim is to provide spectacles without conventional screws, that do not require adjustment and that, preferably, have steady, precise opening and closing positions.
  • Figure 1 is a perspective view of part of a pair of spectacles with an arm arranged in a first, open position
  • Figure 2 is a perspective view of part of a pair of spectacles with an arm arranged in a second, folded position
  • Figure 3 is an enlarged perspective view of a detail of the spectacles of Figures 1 and 2;
  • Figure 4 is an exploded perspective view of some of the components of the spectacles
  • Figure 4A is a view, from a different angle, of one of the components of Figure 4.
  • Figure 5 is a perspective view of the components of Figure 4, when assembled;
  • Figures 6, 7 and 8 are views in cross section that schematically show the spectacles with an arm oriented in three different angular positions.
  • Figure 9 is an enlarged perspective view of a detail of a pair of spectacles according to an embodiment other than that shown in Figures 1-8.
  • the frame of a pair of spectacles includes a front 10 and two arms 20, only one of which has been shown.
  • Each arm 20 is articulated to one of the side ends of the front; in the particular embodiment shown, the arm 20 is articulated to a projecting attachment portion 1 1, which extends rearwards from a main part 13 of the front that forms the lens-holder rims 14.
  • the attachment portion 11 need not necessarily be formed directly by the front, as in the example of Figures 1 and 2.
  • the attachment portion which is articulated to the arm is an endpiece secured to one side end of the front, for example, fastened to one side of a rim.
  • the spectacles may be rimless, in which case the attachment portion 11 is directly connected to one of the lenses, to hold it in place and support it. Therefore, in the present context, the expression "attachment portion” means one of the two portions, each located at a respective side end of the spectacles, which can be either integral with or secured (for example, fixed) to a lens supporting element (in this example to the front 10) or directly to the lens.
  • the arm 20 has a front portion 21 which has a cross section with a vertically elongated rectangular shape, with two opposite vertical faces 21a, 21b.
  • a window or through-opening 22 bounded at the front by a straight vertical edge 24 which defines a vertically elongated flat surface of rectangular shape.
  • the front end portion 21 has a straight vertical outer edge 23 parallel to the vertical edge 24 of the window 22; the outer edge 23 also has a vertically elongated flat surface of rectangular shape.
  • the front portion 21 forms a parallelepiped vertical bar portion 25 between the edges 23 and 24.
  • the parallelepiped bar portion 25 is arranged at the front end of the arm 20 and has a rectangular cross section, when viewed in a horizontal section plane, bounded by the edges 23 and 24, and two opposite side surfaces 26, 27 respectively formed by the two opposite vertical faces 21 a, 21b of the arm 20.
  • the attachment portion 1 1 has a vertical surface 15 facing inwards, i.e. facing, when in use, the temple of a person wearing the spectacles.
  • the surface 15 preferably includes a vertical groove or channel 16 of rectangular cross section, having a vertical flat bottom 16a and two vertical sides 16b, 16c perpendicular to the bottom 16a.
  • An elastic element or spring 30 is fixed to the inner vertical surface 15, said elastic element being a shaped metal, preferably steel, plate or strip arranged parallel to the inner vertical surface 15.
  • the elastic element 30 has a vertical surface 31 turned towards the outside ( Figure 4A), facing the vertical surface 15 of the attachment portion 11.
  • the elastic element 30 is fixed to and projecting from the vertical surface 15 and forms a tab or free end portion 33 that projects rearwards and has, on the side facing the vertical surface 15, a tooth 34 which extends vertically and projects in an outward side direction, towards the vertical surface 15.
  • the vertical dimension of the tab 33 is smaller than the main part of the elastic element 30, and the tab makes with the elastic element two vertical steps or shoulders, one upper 35a and one lower 35b.
  • the vertical surface 31 of the elastic element 30 forms a vertical channel 36 of rectangular cross section, having a vertical flat bottom 36a and two vertical sides 36b, 36c perpendicular to the bottom 36a.
  • the vertical channel 36 is facing the vertical channel 16 formed in the vertical surface 15 of the attachment portion 1 1 ( Figures 6 and 7).
  • the elastic element 30 is connected to the attachment portion 11 at two different points 32a, 32b, aligned in a front-rear direction.
  • the elastic element 30 is fixed in such a way that it tends to remain parallel to the inner vertical surface 15; the tab or free end portion 33 of the elastic element 30 is allowed to flex, against its elastic force, and bend in a horizontal plane, away from the vertical surface 15.
  • the elastic element 30 is held in place by a bolt 32a and a protrusion or bulge 32b which engages in a recess 32c formed in the inner vertical surface 15.
  • the bolt 32a comprises a screw 32d having a head 32e which is preferably not circular, housed in a corresponding non-circular seat formed in the outer surface of the end attachment portion 1 1 , and a nut 32f.
  • the bulge 32c which protrudes from the surface 31 of the spring 30 to engage in the corresponding recess 32c, provides, together with this recess, a means which prevents the rod 20 from rotating, in a vertical plane, with respect to the elastic element 30 and hence with respect to the front 10.
  • the elastic element 30 may be fixed in other ways, for example by means of one or more welding points, or by means of rivets or bolts, preferably in pairs, arranged so as to prevent the arm from rotating in a vertical plane with respect to the rest of the spectacles.
  • Each arm of the spectacles can take up two alternative steady positions: a fully open position ( Figure 1), in which the arm is rotated away from the front and oriented perpendicular to the inner vertical surface 15, and a folded or closed position ( Figure 2) in which the arm is oriented parallel to the inner vertical surface 15 and is folded against the front.
  • Figure 1 a fully open position
  • Figure 2 a folded or closed position
  • the arm When the arm is in the open position ( Figures 1, 5 and 6), the arm is oriented in a rear direction, substantially perpendicular to the front 10 of the spectacles.
  • the elastic element 30 urges the arm 20 towards the attachment portion 11.
  • the parallelepiped bar portion 25 is received and retained, with a predetermined small amount of play, in a parallelepiped seat of which the shape and dimensions preferably correspond to the shape and dimensions of the parallelepiped bar 25.
  • the parallelepiped seat is formed partly by the attachment portion 1 1 and partly by the elastic element 30.
  • the parallelepiped bar portion 25 preferably has a shape in horizontal cross section that corresponds to the shape in cross section of the seat formed together by the channels 16 and 36 facing one another.
  • the two opposite side faces 26 and 27 of the parallelepiped bar portion 25 are located between the vertical flat bottom 16a of the channel 16 and the tab 33, while the vertical front edge 24 of the window 22 and the vertical outer edge 23 are between the sides 16b, 16c of the attachment portion 1 1 and the tooth 34 of the elastic element 30.
  • the vertical outer edge 23 is in abutment against the sides 16b, 36b, while the tooth 34 is in abutment against the front edge 24 of the window 22.
  • the arm When the arm is in the folded position ( Figures 2, 3 and 7), the arm is oriented in a direction substantially parallel to the front 10 of the spectacles. In this position too, the elastic element 30 pushes the arm 20 towards the attachment portion 1 1, in particular towards the inner vertical face 15 of the attachment portion 11.
  • the parallelepiped bar portion, together with the seat that receives it, formed partly by the attachment portion 11 and partly by the elastic element 30, constitutes the hinge around which the arm rotates.
  • FIG. 8 schematically shows a partially rotated position of the arm 20, which represents the dead point of instability between the two positions, open and folded.
  • the parallelepiped bar portion 25 by virtue of its rectangular cross section, places the elastic element 30 in a position of maximum opening with respect to the attachment portion 11.
  • the elastic elements 30 and the attachment portions 11, or the entire front 10, are made of steel.
  • the facing parts 16 and 36 which together form said parallelepiped seat, are obtained by removal of material.
  • one suitable method for forming the facing parts or channels 16, 36 is photochemical machining.
  • the channels 16, 36 may be formed during a photochemical machining process that also cuts the front 10 or the attachment portions 1 1 from a steel sheet or foil. It is thus possible, in a single production step, to obtain the front, or part thereof, as well as to form the channels 16, 36 necessary for the operation of the hinge.
  • the removal of material, preferably by photochemical machining, is particularly precise and makes it possible to form sharp edges in the channels 16 and 36. Sharp edges are an effective way of accurately defining the two steady angular positions (open/closed) imparted to the arms 20.
  • photochemical machining leaves no appreciable residual stress in the workpiece.
  • the arms 20 are made of steel.
  • the profiles of the steel arms 20 and the through- openings or windows 22 are advantageously formed by laser cutting from a thin steel plate.
  • This technology makes it possible to form the parallelepiped vertical bar portion 25 with precision, giving it the desired rectangular cross section, with well defined corners or vertices.
  • Figure 9 shows a different embodiment, in which the elastic element 30 is shaped differently, and helps to form three of the four faces of the parallelepiped seat in which the parallelepiped vertical bar portion 25 is retained.
  • the fourth face of the seat is, in this example, formed by the inner vertical face 15 of the attachment portion 1 1.

Landscapes

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

Abstract

L'invention concerne les deux bras (20) d'une paire de lunettes, qui sont montés de façon pivotante sur deux parties de fixation (11), dont chacune a une surface verticale (15) faisant face, en utilisation, à la tempe d'une personne portant les lunettes. Chaque bras comprend une partie avant ayant la forme d'une barre verticale parallélépipédique (25) reçue dans un siège parallélépipédique formé partiellement par la première surface verticale de la partie de fixation pertinente (11) et partiellement par un élément élastique (30) qui est fixé à la surface verticale (15) et qui pousse la partie barre parallélépipédique (25) du bras vers ladite surface verticale.
PCT/IB2013/058308 2012-09-05 2013-09-05 Lunettes WO2014037894A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000764A ITTO20120764A1 (it) 2012-09-05 2012-09-05 Occhiale
ITTO2012A000764 2012-09-05

Publications (1)

Publication Number Publication Date
WO2014037894A1 true WO2014037894A1 (fr) 2014-03-13

Family

ID=47046774

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2013/058308 WO2014037894A1 (fr) 2012-09-05 2013-09-05 Lunettes

Country Status (2)

Country Link
IT (1) ITTO20120764A1 (fr)
WO (1) WO2014037894A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3054340A1 (fr) * 2015-02-04 2016-08-10 Kinglory (Hong Kong) Limited Charnière élastique pour lunettes

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1807186A1 (de) * 1967-11-15 1969-06-19 Loris Mari Brillenscharnier mit durch federnde Rastung bestimmten Relativstellungen zwischen Rahmen und Buegel
FR2815728A1 (fr) * 2000-10-20 2002-04-26 Nouvelle Idc Internat Design C Charniere elastique sans vis pour montures de lunettes
DE202011002016U1 (de) * 2011-01-27 2011-03-24 Ic! Berlin Brillenproduktions Gmbh Brillengestell und Brillenbügel
DE202010013198U1 (de) * 2010-12-22 2011-05-12 Shen, Ya-Zih, Douliu City Brillengestell
WO2011108824A2 (fr) * 2010-03-02 2011-09-09 Shin Sang-Ho Structure de couplage de branches et de monture de lunettes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1807186A1 (de) * 1967-11-15 1969-06-19 Loris Mari Brillenscharnier mit durch federnde Rastung bestimmten Relativstellungen zwischen Rahmen und Buegel
FR2815728A1 (fr) * 2000-10-20 2002-04-26 Nouvelle Idc Internat Design C Charniere elastique sans vis pour montures de lunettes
WO2011108824A2 (fr) * 2010-03-02 2011-09-09 Shin Sang-Ho Structure de couplage de branches et de monture de lunettes
DE202010013198U1 (de) * 2010-12-22 2011-05-12 Shen, Ya-Zih, Douliu City Brillengestell
DE202011002016U1 (de) * 2011-01-27 2011-03-24 Ic! Berlin Brillenproduktions Gmbh Brillengestell und Brillenbügel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3054340A1 (fr) * 2015-02-04 2016-08-10 Kinglory (Hong Kong) Limited Charnière élastique pour lunettes

Also Published As

Publication number Publication date
ITTO20120764A1 (it) 2014-03-06

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