WO2023119340A1 - Joint à cavité sphérique pour branches interchangeables de lunettes - Google Patents

Joint à cavité sphérique pour branches interchangeables de lunettes Download PDF

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Publication number
WO2023119340A1
WO2023119340A1 PCT/IT2022/050336 IT2022050336W WO2023119340A1 WO 2023119340 A1 WO2023119340 A1 WO 2023119340A1 IT 2022050336 W IT2022050336 W IT 2022050336W WO 2023119340 A1 WO2023119340 A1 WO 2023119340A1
Authority
WO
WIPO (PCT)
Prior art keywords
temple
joint
spherical
stem
elasticization
Prior art date
Application number
PCT/IT2022/050336
Other languages
English (en)
Inventor
Paolo TODOVERTO
Sergio SOPPELSA
Original Assignee
Todoverto Paolo
Soppelsa Sergio
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 Todoverto Paolo, Soppelsa Sergio filed Critical Todoverto Paolo
Publication of WO2023119340A1 publication Critical patent/WO2023119340A1/fr

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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

  • Main feature of the present invention is to be able to associate a fixed member having a cylindrical cavity with hemispherical bottom, which member is already integral with the front end and provided with a standard shoulder for the articulation of the temple, as well as being provided with an hemispherical compartment, which is adjacent to the above hemispherical bottom, joining said spherical cavity member with the spherical end of an elastic means that is applied to the hinging end of a temple, said spherical end being connected by a method that provides for a first step of thrusting and housing the same temple spherical end into the cylindrical seat of the fixed member, then a second step of translating the same sphere into the adjacent hemispherical compartment of the same fixed member, and other further functional steps allow the opening, the maximum divarication, and the closure thereof, with respect to the eyeglass front supporting said fixed joint.
  • a number of constructive solutions of hinges for articulating temples to the ends of an eyeglass front are known, which are generally based on joining an eyelet, which for example is integral with the temple end, which eyelet is interposed between a pair of eyelets that are integral, for example, with the ends of an eyeglass front, their connection being ensured by a screw or pin threaded between said aligned eyelets.
  • temple end members that are shaped as a small cylinder, to be housed into a cylindrical member of the front, which is provided with a through hole with a squared side loop, into which the cylindrical member is housed to be bayonet-coupled, such as described, for example, in US 1504212, EP 0926530, EP 0945751.
  • the sight of the pin head and shank in the current solutions of a hinge for eyeglass elasticized temples generally involves an aesthetically unappealing, not very accurate appearance, as well as being the occasion for a deposition of dust and impurities during the daily use of the eyeglass.
  • hinge solutions which provide for covering the pin with wings extending from the temple end, such as described, for example, in W02004/040355, WOO2011/121522.
  • these and other similar solutions while fulfilling their aesthetic and cleanliness functions, showed to have a very complex construction and a very fragile structure also during the manufacturing phase, besides being difficult to be fixed, in case of a failure, thus having to limit the diffusion thereof, in particular for the interchangeability of the temples, even by a skilled optician.
  • Main task of the present invention is to make a joint for joining, onto a single eyeglass front, a plurality of interchangeable, elasticized temples, so as to ensure the highest constructive simplicity and the maximum reliability of the hinging, for an adjustable movement thereof of their snap closure and opening.
  • Another important object of the present invention is to make the replacement of the elasticized temples to a single eyeglass frame as simple and easy as possible, eliminating thereby any possibility of unscrewing or losing the pin.
  • a further object of the present invention is to be able to aesthetically eliminate the sight of the head or shanks of the screws or pins for the hinging connection, besides preventing the formation and the view of zones where dust and impurities may build up.
  • - Fig. 1 depicts a horizontal view, along the sectional plan I - I of Fig. 3, of the hollow joint having also a securing shank at the end of an eyeglass front;
  • Fig. 2 depicts a bottom view of the joint member of Fig. 1;
  • Fig. 3 depicts a plan view of the joint member of Fig. 1, according to its sectional plan III -
  • FIG. 4 depicts a horizontal, axial -sectional view of an eyeglass temple end including an elasticization member thereof, having its free end in a spherical shape, to be housed in the hemispherical cavity of the hollow member of Fig. 1;
  • Fig. 5 depicts an enlarged view only of the elasticization member comprised in the temple end of Fig. 4;
  • FIG. 6 depicts a horizontal, axial -sectional view of the temple end of Fig. 4, in its initial phase of assembling to the hollow joint of Fig. 1;
  • Fig. 7 depicts a horizontal and axial view of the same end of the temple and the joint of Fig.
  • Fig. 8 depicts a horizontal and axial view, similar to the views in Fig. 6 and Fig. 7, depicted in its normal opening condition of the temple on the eyeglass front.
  • a preferably metallic fixed joint member (1) is composed of a substantially parallelepiped-shaped body (10), on the inner wall (10/a) of which a cylindrical hole (11) is located, the blind bottom (12) of which is of hemispherical shape and is made communicating with an adjacent hemispherical seat (13).
  • said body (10) has a transversal slot (14) that is arranged on the inner surface (10/a) thereof, which is in communication with the center line of the cylindrical hole (11) and extends just beyond the central line of the free outer wall (10/b), besides with the hemispherical walls (12 - 13). Therefore, the same body (10) has a flat base (15), which is integral with two anchoring feet (16 - 17), preferably separated by an intervening compartment (18).
  • the hemispherical seat (13) of the body (10) provides a slight cavity towards the inner wall (10/a), to promote the containment of the sphere (21) during a normal use of the eyeglass.
  • the hollow body or joint (10) of the joint (1) is made integral with the end of a front (5), exemplarily made of acetate, by burying the feet (16 - 17) thereof, so that its base plate (15) is coplanar with the surface of the same eyeglass front (5).
  • the hollow body (10) of the joint (1) is integral with the front (5) end and is connected with the temple (4) end via the interposition of an elasticization device (2) that is housed in a box (3).
  • an elasticization device (2) comprise a spherical head (21) that is provided with a shank or stem (22), which stem has a threaded end (23) and an initial length, or tang (27), these having a squared or in any case flat section.
  • the same device (2) comprises a jacket (28), which has a bottom (28/a) with an axial hole (28/b) through which the stem (22) passes.
  • Said jacket (28) is housed and guided into the compartment (30) of the box (3), to be secured thereto for example by at least one grub screw (26).
  • the same elasticization device (2) comprises a coil spring or other elastic means (25) enveloping said stem (22). And end of said elastic means (25) abuts against the bottom (28/a) of the jacket (28), while the opposite end thereof contacts a nut (24), exemplarily spherical, which is screwed to the threaded end (23) of the stem (22) and allows adjusting the compression of said elastic means (25).
  • the spherical head (21) of the device (2) is shown slightly detached from the bottom (28/a) of the jacket (28) and from the aligned open edge of the box (3).
  • a pre-loading of the elastic means (25) causes the nut (24), hence the stem (22), to bring said spherical head (21) in abutment position on the outer surface of said bottom (28/a).
  • the displacement of the spherical head (21) from the bottom (28/a) of the jacket (28) is easily achieved by slightly pulling it, as specified herein below.
  • connection, and the articulation actuation of the temple (4) to the front (5) is made possible by following a particular assembly and operative method thereof, which provides for at least two preliminary steps of preparing the temple (4).
  • the elasticization device (2) is prepared and assembled, passing the stem (22) of the spherical head (21) into the hole (28/b) of the jacket (28) and enveloping it by the elastic means (25), which is substantially housed in the compartment of the same jacket (28); then, the nut (24) is screwed onto the threaded shank (23) of the same stem (22), until imparting the desired compression to said elastic means (25), by way of example as depicted in Fig. 5.
  • the elasticization device (2) is housed in the compartment (30) of the box (3), positioning the bottom (28/a) of the jacket (28) so that it is aligned with the bottom of the box (3) that houses it, and so that it can be secured thereto, for example by means of a grub screw (26), as depicted by way of example in Fig. 4, so that the temple (4) is ready to be associated with the joint (1).
  • a grub screw 26
  • a first step of the assembly method under consideration provides for the alignment and the arrangement of the temple (4) on axis with the blind hole (11) of the joint (1), by aligning the axis of the stem (22) of its elasticization device (2) to the axis of the cylindrical hole (11) of the joint (1), so as to be able to push the spherical head (21) of the device (2) along said conduit (11), until resting the same head (21) of the hemispherical bottom (12) of said blind hole (11).
  • a second step of the present assembly method provides for translating the same spherical head (21) from the hemispherical bottom (12) to the adjacent hemispherical compartment (13), acting by translation on the temple (4), which forces the flat part (27) of the stem (22) to insert into the slot (14) of the joint (10).
  • the width of the slot (14) of the joint (1) is slightly larger than the width of the contacting sides of the polygonal tang (27) of said stem (22), thus preventing any accidental axial rotation of the elasticization device (2) and of the same temple (4) with respect to the front (5).
  • a third operative step of the method under consideration provides for the rotation of the temple (4), for a passage thereof from the closure position of Fig. 6 to a possible opening position of Fig. 8.
  • a possible maximum divarication thereof is defined by the width of the slot (14) on the wall (10/b), against which the tang (27) of the stem (22) can abut.
  • the divarication thrust on the temple (4) causes a further loading of the spring (25) which, when the thrust action stops, tends to snap the same temple (4) towards its normal opening condition of Fig. 8.
  • the interchangeability of the temples is made easily possible by the present invention by bringing the temple (4) back to its closure condition of Fig. 6, after moving the spherical head (21) thereof from the spherical seat (13) to the spherical seat (12) of the joint (1), so that the axis of its tie rod (22) coincides with the axis of the cylindrical blind hole (11). Subsequently, the spherical head (21) is simply extracted from the conduit (11), and the spherical head (21) of the new temple (4) to be applied is inserted, repeating the steps described above.
  • the hollow joint (1) allows an articulated fit of the temple (4) without the need for a pin or a screw with respective nut that may unscrew and cause the loss of the temple, as well as the joint (1) itself also eliminates the presence and unsightly view of any screws or nuts, as well as it eliminates any formation of surface dirt, in accordance with other specified objects.
  • a similar adjustment of the desired compression of the temple (4) allows adjusting the consistency of the snapping of the same temple (4), for a passage from the closure position to the opening position, and vice versa, with respect to the front (5), as well as from the maximum divarication position, in accordance with another one of the specified objects.
  • the spherical end (21) of the elasticization device (2) can take a cylindrical shape, to be passed through the blind hole (11) of the joint (1), with its hollow bottom (12) having a cylindrical shape and adjacent seat (13) having a similar cylindrical seat.
  • the part of the tang (27) may also not be flat.
  • the joint and the application method thereof exemplarily illustrated so far in a solution on frame of front (5) and temple (4) made of cellulose acetate or other plastic material, can also be applied in making metal or metal alloy eyeglasses of any known type.
  • the base plate (15) of the joint (1) can be without the feet (16 - 17) and may be provided with through holes, or with threaded shanks with which the same joint (1) is connected to each end of a metal front (5’).
  • the present joint with spherical or cylindrical cavity can be applied and adapted to make any type of eyeglass made of acetate or injected, as well as made by milling, or with a frame made of other materials, even of the wooden type, as well as to make any type of so-called three-piece eyeglasses.
  • a wall of the box (3’) can be secured or welded to the inner surface of a metal temple (4’), while a grub screw (26’) thereof, which also may be the shank of a screw for securing the box (3’), ensures the positioning of the jacket ( 28’) with respect to the alignment of the bottom (28/a’) thereof and of the box (3’) edge, upon the contact with the surfaces (10/a) and (10/b) of the joint (1), along the slot (14) thereof.
  • the presence of the coil spring (25) can be counterbalanced by the presence of any other known elastic means that has similar features of reaction to compression upon a handling step of the temple (4) on the eyeglass front (5).
  • the illustration of the actuating steps of the assembly method of the joint under consideration provides for the possibility of two preliminary steps, which allow the availability of a plurality of temples (4) to be associated with a front (5), so that they are ready upon their replacement, for example, by an optician.
  • these preliminary steps are intended to be complementary to the steps of joining the temple (4) to the joint (1); therefore, they are within the overall assembly method of the joint under consideration.
  • These and other similar modifications or adaptations to similar construction forms of a spherical cavity joint for an interchangeable elastic temple of eyeglass, and of the assembly method thereof are intended to be within the novelty and originality of the finding for which protection is sought as defined by the claims.

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

Abstract

L'invention concerne un joint à cavité sphérique pour une branche élastique interchangeable de lunettes et son procédé d'assemblage. Le joint comprend un élément fixe ayant une cavité cylindrique et un fond hémisphérique, à associer aux deux extrémités de la face avant de lunettes, en joignant ledit élément creux à une extrémité sphérique d'un moyen élastique qui est appliqué à l'extrémité d'une branche respective, selon un procédé d'assemblage qui assure la poussée de l'extrémité sphérique dans le compartiment avec une base hémisphérique du joint fixé à l'avant, puis la poussée latérale de la même sphère dans le compartiment hémisphérique adjacent dudit joint fixe, ladite sphère étant amenée à tourner dans ledit siège hémisphérique, par activation de la tige qui relie ladite sphère, ladite tige étant rendue déplaçable le long d'une fente transversale dudit élément de joint creux.
PCT/IT2022/050336 2021-12-24 2022-12-19 Joint à cavité sphérique pour branches interchangeables de lunettes WO2023119340A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102021000032129 2021-12-24
IT102021000032129A IT202100032129A1 (it) 2021-12-24 2021-12-24 Snodo a cavita' sferica per astina elastica intercambiabile di occhiale e suo metodo di assemblaggio

Publications (1)

Publication Number Publication Date
WO2023119340A1 true WO2023119340A1 (fr) 2023-06-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2022/050336 WO2023119340A1 (fr) 2021-12-24 2022-12-19 Joint à cavité sphérique pour branches interchangeables de lunettes

Country Status (2)

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IT (1) IT202100032129A1 (fr)
WO (1) WO2023119340A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4339517C1 (de) * 1993-11-19 1995-05-18 Heinrich Uphoff Brillengestell mit Bügelgelenk
US20030020867A1 (en) * 2001-07-26 2003-01-30 Prisma S.R.L. Elastic hinge for eyeglasses
KR20040028254A (ko) * 2002-09-30 2004-04-03 우종웅 합성수지재 안경테의 다리연결구조
EP1524547A1 (fr) * 2003-10-13 2005-04-20 VISOTTICA S.p.A. Charnière élastique en particulier pour branches monoblocs
US20060179609A1 (en) * 2003-09-10 2006-08-17 Huang Chen C Elastic hinge of the spectacle frame and manufacturing method thereof
US20150085244A1 (en) * 2013-09-25 2015-03-26 Troy L. Carter Earpiece-less Eyeglass Apparatus and Strap Attachment Mechanism
US20190285910A1 (en) * 2018-03-14 2019-09-19 Visottica Industrie S.P.A. Elastic hinge for eyeglasses

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1504212A (en) 1922-04-03 1924-08-12 Charles O Carlson Spectacle-hinge construction
JP3145349B2 (ja) 1997-12-26 2001-03-12 株式会社小林 眼鏡部品の連結構造
EP0945751A1 (fr) 1998-03-26 1999-09-29 Charmant Co., Ltd. Méchanisme de rotation pour lunettes et lunettes pourvues de ce méchanisme
CN100333913C (zh) 2002-07-08 2007-08-29 精工爱普生株式会社 喷液装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4339517C1 (de) * 1993-11-19 1995-05-18 Heinrich Uphoff Brillengestell mit Bügelgelenk
US20030020867A1 (en) * 2001-07-26 2003-01-30 Prisma S.R.L. Elastic hinge for eyeglasses
KR20040028254A (ko) * 2002-09-30 2004-04-03 우종웅 합성수지재 안경테의 다리연결구조
US20060179609A1 (en) * 2003-09-10 2006-08-17 Huang Chen C Elastic hinge of the spectacle frame and manufacturing method thereof
EP1524547A1 (fr) * 2003-10-13 2005-04-20 VISOTTICA S.p.A. Charnière élastique en particulier pour branches monoblocs
US20150085244A1 (en) * 2013-09-25 2015-03-26 Troy L. Carter Earpiece-less Eyeglass Apparatus and Strap Attachment Mechanism
US20190285910A1 (en) * 2018-03-14 2019-09-19 Visottica Industrie S.P.A. Elastic hinge for eyeglasses

Also Published As

Publication number Publication date
IT202100032129A1 (it) 2023-06-24

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