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
  • G02C1/06—Bridge or browbar secured to or integral with closed rigid rims for the lenses
  • G02C1/08—Bridge or browbar secured to or integral with closed rigid rims for the lenses the rims being tranversely split and provided with securing means
• • 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
  • G02C5/00—Constructions of non-optical parts
  • G02C5/12—Nose pads; Nose-engaging surfaces of bridges or rims
  • G02C5/126—Nose pads; Nose-engaging surfaces of bridges or rims exchangeable or otherwise fitted to the shape of the nose
• • 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
  • G02C2200/12—Frame or frame portions made from sheet type material

Definitions

• the present invention concerns a system for constraining lenses in an eyeglass frame, as well as an eyeglass frame specially designed to best exploit such a system.
• the purpose of the present invention is to avoid the aforementioned drawbacks, offering a system that is cost-effective to product, without mechanical machining such as welding, gluing, perforation, screwing; all of this is obtained by sheet moulding, through laser cutting, or else through chemical milling.
• the purpose is also to offer a system that is simple to mount and dismount, both in the factory assembly step and in the optician's shop, during the mounting of the lenses of the end user and, not to be underestimated, with the possibility of mounting a single lens at a time, thanks to the double fastener, one for each lens.
• a system for constraining the lenses which comprises a nosepad-carrying fastener that, being hinged at a point of the metallic frame at the lower bridge, rotates and locks another portion of the frame itself, opposite the first, clamping around the lens contained in it
• Fig. 1 is a top view of one half of an embodiment of the metal frame and of an embodiment of a pad-carrying fastener also made from metal, considering the other half to be the mirror image;
• Fig. 2 is a top view of a lens;
• Fig. 3 is an enlarged view of the pad-carrying fastener with the hook closed
• Fig. 4 is a top view of the frame with the lenses inserted, but with the pad- carrying fasteners not closed;
• Fig. 5 is an internal perspective view of the half-frame with the lens inserted and application of the pad-carrying fastener
• Fig. 6 is an external perspective view of the half-frame with the lens inserted and partial rotation of the pad-carrying fastener
• Fig. 7 is an external perspective view of the half-frame, with the lens inserted and complete rotation closed of the pad-carrying fastener
• Fig. 8 is an internal perspective view of the half-frame, with the lens inserted and complete rotation closed of the pad-carrying fastener
• Fig. 9 is an internal perspective view of the half-frame with the lens inserted and pad-carrying fastener being closed, with the area configured like an elastic element in the foreground;
• Fig. 10 is a perspective view of the complete frame assembled with the lenses inserted and the pad-carrying fasteners being closed.
• Fig. 1 illustrates just a part of the frame M and a single pad-carrying fastener G, with it being understood that the other part is absolutely symmetrical.
• the frame M in its left part has an area C configured like an elastic element, whereas in the right part a half of the upper bridge P is represented, with a throat
• the pad-carrying fastener G has a semicircular area with an open hook referred to as G', a sliding area located at the point G'", an edge area G" and a closing area referred to as G"".
• Fig. 2 illustrates a lens L, with a central perimeter groove L', suitable for engaging the inner perimeter M' and M" of the half-frame M of fig.1.
• Fig. 3 illustrates an enlargement of the pad-carrying fastener G, having the hook
• Fig. 4 illustrates the complete frame M with the lenses L inserted, but with the pad-carrying fasteners not fastened to the upper bridge; thanks to the elastic nature of the frame M and the groove L' made in the lenses themselves, they can stay in their seat even if not rigidly locked by the pad-carrying fasteners (useful function whenever the lenses have to be correctly oriented before they are locked).
• Fig. 5 illustrates the first insertion procedure of the pad-carrying fastener G in the half-frame: the pad-carrying fastener G is positioned by matching up the hooked semicircular area G', in the respective receiving area Q' of the lower bridge Q of the half-frame; once the pad-carrying fastener G has been inserted according to the procedure described above, the hook G' will be closed with a simple mechanical operation, according to what is illustrated in fig. 3, thus allowing it to rotate but not to detach. Once locked, it will be made to rotate, according to the direction of the arrow F.
• Fig. 6 illustrates the first part of rotation of the pad-carrying fastener G according to the direction of the arrow F': in the first part of rotation the pad- carrying fastener G, hinged in the area G' rotates around the receiving area Q', entering into the throat P' of the upper bridge P, made easier by the curvature in its portion G'".
• FIG. 9 illustrates the half-frame assembled with the lens and the pad-carrying fastener, highlighting the area configured like an elastic element C, suitable for compensating for possible size differences of the lenses L.
• fig. 10 represents the complete frame with the lenses inserted and locked by the pad-carrying fasteners G.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=41323375

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Citations (1)

Family Cites Families (9)

• 2009
  • 2009-04-21 IT IT000073A patent/ITTV20090073A1/it unknown
• 2010
  • 2010-04-20 EP EP10718868A patent/EP2446318A1/de not_active Withdrawn
  • 2010-04-20 WO PCT/EP2010/002399 patent/WO2010121778A1/en active Application Filing

Patent Citations (1)

Non-Patent Citations (1)

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