WO2005001551A1 - Articulation pour monture de lunettes et monture comprenant une articulation de ce type - Google Patents

Articulation pour monture de lunettes et monture comprenant une articulation de ce type Download PDF

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Publication number
WO2005001551A1
WO2005001551A1 PCT/IT2003/000407 IT0300407W WO2005001551A1 WO 2005001551 A1 WO2005001551 A1 WO 2005001551A1 IT 0300407 W IT0300407 W IT 0300407W WO 2005001551 A1 WO2005001551 A1 WO 2005001551A1
Authority
WO
WIPO (PCT)
Prior art keywords
hinge
pin
tension rod
spectacles
lug
Prior art date
Application number
PCT/IT2003/000407
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 AU2003304259A priority Critical patent/AU2003304259A1/en
Priority to PCT/IT2003/000407 priority patent/WO2005001551A1/fr
Publication of WO2005001551A1 publication Critical patent/WO2005001551A1/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
    • G02C5/2218—Resilient hinges
    • G02C5/2236—Resilient hinges comprising a sliding 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
    • 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
    • G02C2200/30—Piston

Definitions

  • a hinge for a spectacle frame and a frame including such a hinge A hinge for a spectacle frame and a frame including such a hinge.
  • the present invention relates to a hinge for spectacles according to the preamble of claim No. 1.
  • the subject-matter of the invention is also a spectacle frame including the above-mentioned hinge.
  • hinges for spectacles users particularly appreciate so-called elastic hinges by means of which the arms of a spectacle frame can be pivoted beyond the normal open position and can also be returned to that position when they are released. This resilient springing effect is also present when the arms are being closed.
  • the problem on which the present invention is based is to manufacture a hinge for spectacles, and spectacles comprising such a hinge, which are designed in such a manner as to avoid all of the disadvantages discussed with reference to the mentioned prior art.
  • an object of the hinge according to the invention is to render the assembly of the spectacles particularly rapid.
  • FIG. 1 is a diagrammatic perspective view of a pair of spectacles comprising a hinge manufactured in accordance with the invention
  • FIG. 2 is an exploded perspective view of a detail of the spectacles of Figure 1 on an enlarged scale;
  • FIG. 3 is an exploded perspective view of a hinge of the spectacles 1 which is manufactured in accordance with the invention.
  • FIGS. 4a-4c are diagrammatic sectioned views of the hinge of Figure 3 during a plurality of assembly stages thereof;
  • FIG. 5 is a perspective view of a detail of Figure 3;
  • Figure 6 is a sectioned view of the detail of Figure 5;
  • FIG. 7 is a sectioned view of a second embodiment of the detail of Figure 5;
  • FIG. 8 is a sectioned view of a third embodiment of the detail of Figure 5;
  • FIG. 9 is a sectioned view of a fourth embodiment of the detail of Figure 5;
  • FIG. 10 is a perspective view of a fifth embodiment of the detail of Figure 5;
  • FIG. 11 is a perspective view of a sixth embodiment of the detail of Figure 5.
  • FIG. 1 generally indicates a pair of spectacles, either for sun or for vision, which are manufactured in accordance with the present invention.
  • the spectacles 1 comprise a frame 2 which in turn includes two arms 3 having a longitudinal axis X which are articulated to respective lugs 4 which are in turn connected to lens-carrying rims 6.
  • the invention is also applicable to so-called "rimless" spectacles, that is to say, those which are not provided with lens-carrying rims 6, the lugs 4 being secured directly to the lenses 7.
  • a hinge 5 is provided between each arm 3 and its respective lug 4 in order to enable the arm 3 to pivot about an axis Y which is substantially perpendicular to the axis X.
  • the hinge 5 comprises a tension rod 10 which is slidably accommodated in a blind seat 11 produced coaxially in the arm 3 and which includes a stem 40, at one end 10b of which is integrally formed a head 12 which projects from the arm 3 and is provided with a through-hole 13.
  • a widened portion 50 is also produced at the free end of the stem 40 remote from the head 12.
  • Two stop elements 41a, 41b, between which a spring 16 is interposed, are fitted slidably on the stem 40.
  • the first stop element 41a abuts the head 12, while the second element 41b is kept in abutment with the widened portion 50: the head 12 and the widened portion 50 have dimensions such as to prevent the elements 41a, 41b from slipping off the stem 40.
  • the tension rod 10 is inserted in the blind seat 11 produced in the arm 3, the first stop element 41a is fixedly joined to the latter by means of a screw, a pin (which are not shown) or bevelling, so that translations of the stem 40 involve a compression or decompression of the spring 16 owing to the consequent translations of the second stop element 41b.
  • Two plate-shaped wings 14a, 14b suitable for accommodating the head 12 of the tension rod 10 between them are formed at one end 4a of the lug 4.
  • a through-hole 15a, 15b is also formed in each wing 14a, 14b, the through-holes being coaxial with one another.
  • the tension rod 10 and the lug 4 are connected to one another by accommodating the head 12 between the two plate-shaped wings 14a, 14b, the holes 13, 15a and 15b being aligned one above the other and an articulation pin 17 having an axis Y being inserted therein.
  • the pin 17 (shown on an enlarged scale in Figure 5) comprises a substantially cylindrical body 18 having opposite ends 18a, 18b, in one of which is formed a notch 19 for engagement with a control key (not shown) suitable for driving the pin 17 in rotation.
  • a control key (not shown) suitable for driving the pin 17 in rotation.
  • a median region of the pin 17 is an eccentrically formed portion 21, that is to say, a portion in which the axis Y of rotation of the pin 17 (corresponding to the axis of symmetry of the cylinder) does not correspond to an axis of the portion 21 in question.
  • the distance between the axis Y of rotation of the pin 17 and a point on the external surface of the body 18 in the eccentrically formed portion 21 is variable in accordance with the position of the point in question on the external surface.
  • the eccentrically formed portion 21 is formed by means of a recess 22 in a portion of the curved surface 25 of the cylindrical body 18.
  • the recess 22 is delimited by two shoulders 23a, 23b which are parallel and opposite one another, and by a base surface 35.
  • a longitudinal section through the eccentrically formed portion 21 of the pin 17 in a plane perpendicular to the axis Y is provided by a closed surface delimited by a first arc of a circle 26 having its centre O on the axis Y and by a second arc of a circle 27 having the same radius but having its centre O' lying at a predetermined distance from the axis Y.
  • the eccentrically formed portion 21 is therefore provided by the solid generated by joining two portions of cylindrical surfaces, one of which is the base surface 35 and which are connected to one another.
  • an identical longitudinal section through the eccentrically formed portion 21' of the pin 17 to that described above is provided by a surface delimited by a circumference 28 having its centre O" at a predetermined distance from the axis Y and having a radius smaller than the radius of the cylindrical body 18.
  • the two radii are such that the circumference 28 is at a tangent to the section circumference of the cylindrical body 18.
  • the eccentrically formed portion 21' is provided by a cylinder.
  • the longitudinal section through the eccentrically formed portion 21" is provided by a surface delimited by the intersection of an arc of circumference 29, which has its centre O on the axis Y and is preferably longer than half the circumference, and a segment 30.
  • the eccentrically formed portion 21" is provided by the solid generated by the intersection of a portion of a plane, the base surface 35, with a portion of a cylindrical surface.
  • the longitudinal section through the eccentrically formed portion 21'" is provided by a surface delimited by a closed curve obtained by the joining of an arc of circumference 31, having its centre O on the axis Y, and a pair of segments 32, 33 which are preferably of equal length, are connected to one another and form an angle.
  • the longitudinal section through the eccentrically formed portion 21"" is provided by a surface delimited by a closed curve comprising an arc of circumference, having its centre O on the axis of rotation Y, and three segments 35, 36, 37 which are arranged at right-angles to one another and which are preferably of equal length.
  • the pin 17 may comprise a cylindrical head 38 ( Figure 11) having a radius larger than the cylinder defining the body 18. The notch 19 is in that case provided on the head 38.
  • the head 38 may be associated with a pin 17 having any of the cylindrically shaped portions 21, 21', 21", 21"', 21"" described above.
  • Figure 11 shows a pin 17 having the cylindrically shaped portion of Figure 6, although any variant is permissible.
  • the through-holes 13, 15a, 15b produced in the tension rod 10 and in the plate-shaped wings 14a, 14b, respectively, have an internal surface parallel with the axis Y and are of a size such as to permit the passage of the pin 17, and in particular of the cylindrical body 18.
  • the holes 13, 15a, 15b are circular and have dimensions substantially equal to the diameter of the cylindrical body 18 or slightly larger in order to permit easy insertion thereof.
  • the internal surface of the hole 13' in the head 12 is formed by a portion of a cylindrical surface and by a portion of a plane, so that it can engage efficiently with the recess 22 formed in the pin 17, as described in more detail hereinafter.
  • the internal surface of the hole 13 may be shaped to comprise flat portions in order better to engage the shape of the portion 21'" or 21"" of the pin 17.
  • a seat (not shown) is also defined in the plate-shaped wing 14a, for the accommodation of the head, in such a manner that the head 38 is flush with the surface of the plate- shaped wing 14a.
  • the tension rod 10 is inserted slidably in the blind seat 11 of the arm 3.
  • the head 12 of the tension rod 10, projecting from the seat 11, is then inserted between the plate-shaped wings 14a, 14b of the lug 4.
  • the spring 16 is produced in such a manner that, when insertion has taken place, the holes 13, 15a, 15b are not aligned with one another, normally being offset by approximately 0.4 mm.
  • the tension rod 10 is then advantageously withdrawn from the hole 11 in the arm 3 until the holes 13, 15a, 15b mentioned above are aligned and the pin 17 can therefore be inserted in them.
  • it is necessary to exert a force opposing that imparted by the spring 16 which tends to bring the tension rod back to its original position, that is to say, it tends to return the tension rod to the inside of the seat 11.
  • the pin 17 is inserted in the holes so that the eccentrically formed portion 21 is positioned at the location of the head 12 between the two wings 14a, 14b.
  • the thickness S in the longitudinal direction of the eccentrically formed portion 21, which is equal to the distance between the two shoulders 23a, 23b, is at least equal to, or optionally greater than, the thickness T of the head 12 of the tension rod 10 in the same direction.
  • the pin 17 is initially inserted in the holes 13, 15a, 15b in a direction in which the recess 22 faces the seat of the tension rod 10, that is to say, it is turned in the direction of the resilient force exerted by the spring 16.
  • the tension rod 10 in this operation of rotation of the pin, translates by approximately 0.2 mm, and therefore the spring 16 still exerts a resilient force on the tension rod 10 in this condition too.
  • the tension rod head 12 one portion of which is locked by the two shoulders 23a, 23b of the pin 17, acts as an anti-slip element for the pin 17, thus preventing the pin from being accidentally or inadvertently lost.
  • the invention therefore solves the problem posed, achieving numerous advantages over the reference prior art.
  • a first advantage resides in the minimisation of the possibility of the accidental loosening of the hinge of the spectacles caused by the pin or the articulation screw being lost.
  • the assembly of the spectacles is particularly rapid and speedy, requiring only a rotation of the pin.
  • the resilient force of the spring acting on the pin has an "anti- rotation” action on the latter, preventing it from spontaneously rotating and placing itself in a condition in which it slips out.

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

Abstract

La présente invention concerne une articulation (5) destinée à des lunettes (1), en particulier à la jointure entre une patte de fixation (4) et une branche (3), comprenant: une tige de tension (10) qui est guidée de façon à pouvoir coulisser dans la branche (3) ou la patte de fixation (4); deux ailettes (14a, 14b) qui s'étendent à l'extrémité respectivement de l'autre élément (patte de fixation ou branche), la tige de tension (10) et les ailettes (14a, 14b) comprenant chacune un orifice de passage (13, 13', 15a, 15b); une cheville d'articulation (17) insérée dans les orifices de passage (13, 13', 15a, 15b) des ailettes (14a, 14b) et de la tige de tension (10). De plus, la cheville d'articulation (17) comprend une partie à excentrique (21, 21', 21'', 21''', 21'''') de sorte qu'une rotation de la cheville (17) correspond à une translation de la tige de tension (10) qui permet de bloquer la cheville (17) dans les orifices de passage (13, 13', 15a, 15b).
PCT/IT2003/000407 2003-06-30 2003-06-30 Articulation pour monture de lunettes et monture comprenant une articulation de ce type WO2005001551A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003304259A AU2003304259A1 (en) 2003-06-30 2003-06-30 A hinge for a spectacle frame and a frame including such a hinge
PCT/IT2003/000407 WO2005001551A1 (fr) 2003-06-30 2003-06-30 Articulation pour monture de lunettes et monture comprenant une articulation de ce type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2003/000407 WO2005001551A1 (fr) 2003-06-30 2003-06-30 Articulation pour monture de lunettes et monture comprenant une articulation de ce type

Publications (1)

Publication Number Publication Date
WO2005001551A1 true WO2005001551A1 (fr) 2005-01-06

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PCT/IT2003/000407 WO2005001551A1 (fr) 2003-06-30 2003-06-30 Articulation pour monture de lunettes et monture comprenant une articulation de ce type

Country Status (2)

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AU (1) AU2003304259A1 (fr)
WO (1) WO2005001551A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600071595A1 (it) * 2016-07-08 2018-01-08 Visottica Ind Spa Procedimento per assemblare una cerniera elastica per montature di occhiali, e cerniera elastica per montature di occhiali
US10795179B2 (en) 2017-11-28 2020-10-06 Viscottica Industrie S.P.A. Elastic hinge for eyeglass frames

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9104617U1 (de) * 1991-04-16 1992-08-20 OBE-Werk Ohnmacht & Baumgärtner GmbH & Co KG, 7536 Ispringen Federscharnier für Brillen
EP1001302A1 (fr) * 1998-11-10 2000-05-17 Kabushiki Kaisha Takeda Kikaku Charnière élastique pour lunettes
WO2000072081A1 (fr) * 1999-05-19 2000-11-30 Ln Industries S.A. Charniere de lunettes
WO2003046644A1 (fr) * 2001-11-29 2003-06-05 Sipal S.A. Charniere elastique pour monture de lunettes comprenant un axe d'articualation en forme de diabolo

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9104617U1 (de) * 1991-04-16 1992-08-20 OBE-Werk Ohnmacht & Baumgärtner GmbH & Co KG, 7536 Ispringen Federscharnier für Brillen
EP1001302A1 (fr) * 1998-11-10 2000-05-17 Kabushiki Kaisha Takeda Kikaku Charnière élastique pour lunettes
WO2000072081A1 (fr) * 1999-05-19 2000-11-30 Ln Industries S.A. Charniere de lunettes
WO2003046644A1 (fr) * 2001-11-29 2003-06-05 Sipal S.A. Charniere elastique pour monture de lunettes comprenant un axe d'articualation en forme de diabolo

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600071595A1 (it) * 2016-07-08 2018-01-08 Visottica Ind Spa Procedimento per assemblare una cerniera elastica per montature di occhiali, e cerniera elastica per montature di occhiali
US10302971B2 (en) 2016-07-08 2019-05-28 Visottica Industrie S.P.A. Process for assembling an elastic hinge for eyeglass frames, and elastic hinge for eyeglass frames
US10795179B2 (en) 2017-11-28 2020-10-06 Viscottica Industrie S.P.A. Elastic hinge for eyeglass frames

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Publication number Publication date
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