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WO2007122642A1 - Monture pour lunettes, en particulier de type sans rebord, et lunettes comprenant une tells - Google Patents

Monture pour lunettes, en particulier de type sans rebord, et lunettes comprenant une tells Download PDF

Info

Publication number
WO2007122642A1
WO2007122642A1 PCT/IT2006/000266 IT2006000266W WO2007122642A1 WO 2007122642 A1 WO2007122642 A1 WO 2007122642A1 IT 2006000266 W IT2006000266 W IT 2006000266W WO 2007122642 A1 WO2007122642 A1 WO 2007122642A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
securing member
lens
head
frame according
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IT2006/000266
Other languages
English (en)
Inventor
Massimiliano Tabacchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safilo SpA
Original Assignee
Safilo SpA
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 SpA filed Critical Safilo SpA
Priority to PCT/IT2006/000266 priority Critical patent/WO2007122642A1/fr
Publication of WO2007122642A1 publication Critical patent/WO2007122642A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • Frame for spectacles particularly of the rimless type, and spectacles comprising such frame
  • This invention relates to a frame for spectacles, particularly of the rimless type, according to the characteristics specified in the precharacterising clause of independent claim no. 1. It also relates to spectacles comprising such a frame having the characteristics listed in the precharacterising clause of independent claim no. 21. Technological background
  • spectacles known as rimless spectacles the frame of which has no lens-holding rims, are known.
  • the lenses are typically fixed to the frame through a plurality of pins integral with the frame which engage corresponding holes suitably located in the lenses.
  • the pins may be secured through a coupling of the screw/nut type, with a nut screwed onto the pin, which in this case is threaded, on the side of the lens opposite the frame.
  • the first disadvantage arises from the fact that the surface of the lens opposite the frame is rarely perpendicular to the longitudinal axis of the pin, as a result of which any nut which is screwed onto the pin engages the lens in a very small area of the same, giving rise to relatively high local pressures which are potentially capable of causing cracks and fracture of the lens.
  • a second disadvantage found in rimless spectacles constructed according to the known art arises in the fact that where lenses have to be replaced with lenses of greater thickness the pins may be too short to permit the new lenses to be fitted, making it necessary to replace the entire frame.
  • the problem underlying this invention is that of providing a frame for spectacles, together with spectacles comprising such a frame, which are structurally and functionally designed to overcome the abovementioned limitations with reference to the cited known art.
  • FIG. 1 is a perspective view of a portion of a first embodiment of spectacles constructed according to this invention
  • FIG. 2 is a view in partial cross-section along the plane II-II of the spectacles in Figure 1
  • FIG. 2a is a view in lateral elevation of a first component of the spectacles in Figure 1
  • - Figure 3 is a view in partial cross-section along the plane III-III of the spectacles in Figure 1
  • FIG. 4 is a view in cross-section similar to that in Figure 3 of a second embodiment of spectacles according to the invention.
  • FIG. 5 is a perspective exploded view of a portion of the frame of the second embodiment of the spectacles
  • FIG. 6 is a view in lateral elevation of a first component of the frame in Figure 5
  • FIG. 7 is a view in lateral elevation of a second component of the frame in Figure 5
  • - Figure 8 is a view in partial cross-section similar to that in Figure 3 of a third embodiment of spectacles according to the invention
  • FIG 9 is a view in lateral elevation of a first component of the spectacle frame in Figure 8,
  • FIG 10 is a view in lateral elevation of a second component of the spectacle frame in Figure 8,
  • FIG. 11 is a view in cross-section along the line XI-XI of the component in Figure 10,
  • - Figure 12 is a view in cross-section similar to Figure 2 of a fourth embodiment according to the invention
  • - Figure 13 is a view in lateral elevation of a first component of the spectacle frame in Figure 12.
  • Spectacles 1 indicate as a whole a pair of spectacles constructed in accordance with this invention.
  • Spectacles 1 comprise a frame 2 on which are fixed lenses 3.
  • Frame 2 is of the rimless type, that is it has no lens-holding rims, and comprises a frame
  • lenses 3 may be attached to frame 2 at connecting members 4 and the bridge of frame 2a through securing means indicated as a whole by 6.
  • Securing means 6 comprise. a first securing member which with reference to the embodiments illustrated in Figures 1 to 11 comprises a threaded pin 7 extending from the frame towards lens 3 along a longitudinal axis X. Pin 7 is received within a seat formed by a hole 8 passing through the lens and held in the hole by a second securing member comprising a nut 9 screwed onto pin 7 on the side of lens 3 opposite frame 2.
  • a hinge 11 is provided adjacent to pin 7 in order to hinge side 5 to connecting member 4, which is placed in a recess 12 made in the perimetral edge of lens 3 so as to prevent any rotational movement with respect to member 2a of frame 2.
  • pin 7 is secured to connecting member 4 at a head 15 through a coupling of the hinged type so that it can move back and forth with respect to connecting member 4 around a hinge axis Y substantially perpendicular to the longitudinal axis X of pin 7.
  • sleeve 8a is dimensioned so that it itself constitutes the maximum limit for the turning of pin 7 about the Y axis.
  • Head 15 of pin 7 is secured to a sleeve 16 firmly secured to connecting member 4 through a hinge member.
  • Sleeve 16 comprises a pair of projections 17 and 18 extending parallel to the X axis, between which head
  • projections 17, 18 are located on opposite sides of head 15 along hinge axis Y and are located in recesses 19, 20 respectively made in head 15.
  • projections 17, 18, acting together with corresponding recesses 19, 20 is to support and hold head 15, preventing the latter from moving along hinge axis Y and from rotating about axes other than the Y axis.
  • each projection 17, 18, which is for example planar and substantially perpendicular to hinge axis Y, abutting against a corresponding surface 22, which for example is also planar, formed in recesses 19, 20.
  • a certain amount of play is provided between the extremities of projections 17, 18 and shoulders 22a bounding recesses 19, 20 so as to allow pin 7 to move back and forth with respect to sleeve 16.
  • the extremities of projections 17, 18 and shoulders 22a of recesses 19, 20 are suitably rounded.
  • 16 comprises a pin 23, having an axis Y, which is removably inserted into holes 24, 25 and 26 made in projections 17, 18 and head 15 of pin 7 respectively.
  • Lens 3 is mounted on frame 2 by inserting pin 7 through hole 8, in which sleeve 8a has previously been fitted, and then by screwing nut 9 on pin 7 so as to tighten lens 3 against connecting member 4.
  • nut 9 tends to cause pin 7 to rotate about the Y axis as it comes into contact with surface 14 of lens 3 in such a way as to bring longitudinal axis X of pin 7 into a perpendicular position with respect to surface 14 of lens 3.
  • hole 8 and sleeve 8a are dimensioned to have a diameter which is suitably greater than that of pin 7. Rotational movement of pin 7 ends when the condition of perpendicularity defined above is reached, or when pin 7 abuts against sleeve 8a.
  • any excess portion of pin 7 can be conveniently cut off so as not to project excessively from surface 14 of lens 3 (see Figure 2).
  • the hinge member comprises an appendage 27 which is of one piece with pin 7 and extends from recess 19 in head 15 parallel to hinge axis Y.
  • Appendage 27 is housed in a hole 28 provided in projection 17. It will be noted that in this case projection 18 extends to a lesser extent than projection 17 in order to assist the operation of inserting head 15 between projections 17, 18, and consequently recess
  • the hinge member comprises a pair of appendages 29, 30 extending symmetrically from recesses 19, 20 along hinge axis Y and slidably located in corresponding grooves 31, 32 made in projections 17, 18.
  • Grooves 31, 32 extend from one side of projections 17, 18 towards a median zone thereof in an insertion direction Z along which head 15 is guided when engaged between projections 17, 18.
  • insertion direction Z is inclined with respect to the longitudinal axis X of pin 7 in such a way that the median zone is further from connecting member 4 than the opening of the groove on the side of the projection.
  • head 15 is held in position by the tensile force exerted on pin 7 through tightening nut 9.
  • the line of grooves 31, 32 may be different from that shown by way of example, provided that the final section thereof adjacent to the median zone where appendages 29, 30 are positioned in .
  • an operating configuration is at a distance from connecting member 4.
  • the grooves may have an L-shaped line, with a first limb perpendicular to the X axis and a second limb parallel thereto, extending away from connecting member 4.
  • Grooves 31, 32 are blind, that is they are provided with an end wall, however in a variant embodiment which is not shown provision is also made for one or both of grooves 31, 32 to be open, thus forming corresponding through channels within which appendages 29, 30 are guided.
  • the first securing member here indicated as a whole by 33, instead of being a solid pin provided with an external thread comprises a blind seat 34 provided axially along longitudinal axis X and open at the extremity opposite head 15.
  • head 15 has the shape of pin 7 in the second embodiment of the invention ( Figures 4 to 7), but it is to be understood that this may similarly have any of the other shapes described above with reference to the other examples.
  • hole 8 made in lens 3 to receive the first securing member has two adjacent sections of different cross-section, 36, 37.
  • the first section 36, close to head 15, has a smaller cross-section and sleeve 8a of thermoplastic material is housed therein.
  • Second length 37 on the other hand, in which the portion of first securing member 33 in which seat 34 is provided is housed, has an elliptical cross- section, in the form of an eyelet, elongated in the direction of the plane perpendicular to hinge axis Y. In this way the back and forth movement of first securing member 33 around the hinge axis is not obstructed by the walls of hole 8.
  • first securing member 33 will be dimensioned in such a way as to be of shorter length than the thickness of the thinnest lenses normally commercially available. This invention thus resolves the problem described above with reference to the cited known art, while at the same time offering many other advantages.

Landscapes

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

Abstract

Une monture (2) de lunettes (1), en particulier de type sans rebord, comprend un élément de monture (2a), un moyen de fixation (6) monté sur l'élément de monture et capable de fixer un verre (3) à la monture. Le moyen de fixation comprend au moins un premier élément de fixation (7, 33) fixé à l'élément de monture et se prolongeant depuis celui-ci de façon à être fixé dans un support (8) prévu dans le verre, et ce premier élément de fixation étant fixé à l'élément de monture par l'intermédiaire d'un couplage de type charnière afin de se déplacer vers l'arrière et vers l'avant par rapport à la monture autour de l'axe de la charnière (Y).
PCT/IT2006/000266 2006-04-20 2006-04-20 Monture pour lunettes, en particulier de type sans rebord, et lunettes comprenant une tells Ceased WO2007122642A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2006/000266 WO2007122642A1 (fr) 2006-04-20 2006-04-20 Monture pour lunettes, en particulier de type sans rebord, et lunettes comprenant une tells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2006/000266 WO2007122642A1 (fr) 2006-04-20 2006-04-20 Monture pour lunettes, en particulier de type sans rebord, et lunettes comprenant une tells

Publications (1)

Publication Number Publication Date
WO2007122642A1 true WO2007122642A1 (fr) 2007-11-01

Family

ID=37114471

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2006/000266 Ceased WO2007122642A1 (fr) 2006-04-20 2006-04-20 Monture pour lunettes, en particulier de type sans rebord, et lunettes comprenant une tells

Country Status (1)

Country Link
WO (1) WO2007122642A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1459348A (en) * 1919-12-10 1923-06-19 Stevens And Company Inc Ophthalmic mounting
US2171753A (en) * 1938-10-06 1939-09-05 Martin Copeland Company Ophthalmic mounting
US2362726A (en) * 1941-05-31 1944-11-14 Slotsky David Mounting means for spectacles
WO2004051347A1 (fr) * 2002-12-05 2004-06-17 Opti-Clip International Llc Ensemble lunettes et son agencement de fixation
US20040233381A1 (en) * 2001-08-07 2004-11-25 Kim Hyoung Sik Lens fixing apparatus for rimless spectacle
GB2411434A (en) * 2004-02-26 2005-08-31 Colin Hynes Spectacles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1459348A (en) * 1919-12-10 1923-06-19 Stevens And Company Inc Ophthalmic mounting
US2171753A (en) * 1938-10-06 1939-09-05 Martin Copeland Company Ophthalmic mounting
US2362726A (en) * 1941-05-31 1944-11-14 Slotsky David Mounting means for spectacles
US20040233381A1 (en) * 2001-08-07 2004-11-25 Kim Hyoung Sik Lens fixing apparatus for rimless spectacle
WO2004051347A1 (fr) * 2002-12-05 2004-06-17 Opti-Clip International Llc Ensemble lunettes et son agencement de fixation
GB2411434A (en) * 2004-02-26 2005-08-31 Colin Hynes Spectacles

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