Classifications

• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C7/00—Optical parts
  • G02C7/16—Shades; shields; Obturators, e.g. with pinhole, with slot
• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C9/00—Attaching auxiliary optical parts
  • G02C9/04—Attaching auxiliary optical parts by fitting over or clamping on

Definitions

• the present invention relates to removable screens for glasses, hook-shaped parts for fixing a screen to glasses, and to a lens assembly part to form a removable binocular screen for glasses.
• the technical field of the invention is that of the manufacture of glasses.
• the invention is particularly applicable to devices for fixing a lens or screen, monocular or binocular, to a pair of glasses, which include a pin or pin, deformable or elastic, which is designed to extend through a channel - or through orifice - pierced in the screen - or glass - to be fixed, and which further comprise a fixing lug capable of overlapping the edge of a glass or a spectacle frame.
• Application WO 98/39681 describes a hook for fixing a screen to glasses which includes such a pin or pin and such a fixing tab or arch, which overcomes this drawback.
• the object of the present invention is to provide such a hook which is further improved.
• the object of the invention is also to provide an improved binocular screen for glasses, as well as a kit specially designed to allow the manufacture, by an optician, individually and on demand, of a monocular or binocular screen of shape and dimensions adapted to that of a determined pair of glasses.
• the invention also aims to remedy, at least in part, the drawbacks of screen fixing parts and additional screens for glasses, known.
• an attachment - or fixing piece - for removably securing a screen pierced with orifices to glasses comprising glasses and a frame;
• the fastener comprises a pin capable of extending into one of the orifices of the screen, and a portion - or jumper - integral with the pin and able to overlap the edge of one of the lenses and / or of the frame;
• the fastener further comprises at least one support portion, preferably a support face portion, in particular one or more support face (s), which is (are) able (s) to slide on the edge of a spectacle lens and / or on the frame, so as to allow the screen to be secured to the spectacles, by a substantially elastic deformation of the fastener - in particular of said portion or rider -, without requiring manipulation - or manual or digital action - direct, by the user, on the fastener, to cause this deformation;
• the invention makes it possible to engage the rider with the periphery
• a screen provided with such attachments is easier to attach to a pair of glasses than the attachments described in WO 98/39681; preferably, a monocular screen according to the invention comprises three fasteners fixed to the periphery of the screen: two fasteners are arranged along the upper edge of the screen so as to be able to engage near the trigger guard and the tenon d 'a pair of glasses, while a third fastener is arranged along the lower edge of the screen, preferably off-center - on the temporal side of the pair of glasses; in the case of a screen having such a configuration, the notches of the two upper fasteners of the screen can be fitted around the edge of the glass or of the spectacle frame, the screen being kept slightly inclined relative to the glass; by a subsequent pivoting movement of the screen relative to the glass, the lower clip is brought into contact with the lower part of the edge of the spectacle lens, by its sliding bearing face; the continuation of this movement provokes the crossing of the edge of the glass by the sliding bearing face, thanks to the deformation of
• the configuration of the fasteners according to the invention also makes it possible to secure a screen to a glass by presenting the screen facing the glass, by arranging the respective sliding bearing faces of the three fasteners, in contact with three zones of the edge of the glass. or of the spectacle frame, then pushing the screen against the lens in a translational movement, until engagement of the three notches on the edge of the lens or of the frame; these operations can thus be carried out with one hand by the wearer of the glasses.
• Said face or portion of sliding bearing face may be left; according to a preferred embodiment, it is however substantially planar.
• this face or portion of sliding sliding face is preferably inclined, relative to the longitudinal axis of the spindle, by an angle situated in a range from 15 to 75 degrees, preferably of the order of 30 to 60 degrees, in particular close to 40 to 50 degrees.
• this angle can of course vary from one part to another of this face.
• the part of the clip in the form of a jumper which is intended to overlap the edge of the lens or of the spectacle frame, has a groove or notch of width adapted to the thickness of the lens or of the frame; this width is generally situated in a range from 1 to 5 mm approximately.
• a fastener for fixing a screen to glasses comprising a U-shaped portion or rider capable of overlapping the edge of the glass and / or of the spectacle frame, this portion or jumper delimiting a groove or notch having a bottom and a mouth; in order to improve the holding in position of fixing of the screen on the glasses, the width of the mouth of the groove is narrowed, that is to say less than the maximum width of the groove or notch.
• the groove or notch is delimited by a first flat face situated on the side of the spindle, by a second flat face forming the bottom of the groove and intended to cover a portion of the glass or frame slice , and by a third face located on the side of the inclined face of sliding support; the first and second faces are substantially perpendicular, while the third face, which can be flat or on the contrary left, is inclined relative to the first face so as to delimit with the first and second faces a groove or notch flared towards its bottom and / or with narrowed opening.
• a removable attachment piece from an optical screen to a pair of glasses which comprises a pin capable of extending through an orifice crossing the periphery of the screen, a deformable elongated central part, and a tapered asperity - in the form of a tooth, beard or barb - which extends at the free end of the deformable elongated central part; preferably, this roughness is partly bounded by said sliding bearing face on the one hand, and by said third face of the groove on the other hand; the central part is thus able to overlap the edge of the glass.
• a clip for fixing a screen to glasses which comprises a pin provided with three stops: a first stop capable of extending in contact with a rear face d '' a screen, a second stop capable of extending in contact with a front face of a screen, as well as a third stop capable of extending in contact with a part of a connecting piece of two screens monoculars of a binocular screen.
• a connecting piece for connecting together two monocular screens, to form a binocular screen suitable for a pair of glasses;
• the connecting piece comprises a central part elongated along a longitudinal axis, and two jumpers - preferably identical - respectively provided - in particular incorporated - at each longitudinal end of the elongated central part;
• each jumper has two tongues facing each other, substantially parallel to each other, and each pierced with a hole for the passage of a pin of a clip of a screen;
• the connecting piece has a symmetry with respect to a median anteroposterior plane, and the normal to the plane of each tongue is inclined with respect to the plane of symmetry of the connecting piece; this allows to connect between them two monocular screens having a curvature, while maintaining their respective optical axes substantially parallel.
• a connecting piece for connecting together two monocular screens which has a central part elongated along a longitudinal axis, and two jumpers respectively provided at each longitudinal end of the part. elongated central; each jumper has two tongues facing each other, substantially parallel to each other, and each pierced with a hole for the passage of a pin of a clip of a screen; a first tab of each rider is pierced with a first orifice having a first diameter; a second tab of each rider is pierced with a second orifice having a second diameter, the value of which is greater than that of the first diameter; for each jumper, the first port is substantially aligned with the second port; thus, in the first orifice can extend a spindle part having a first size, while in the second orifice can extend a spindle part having a second size greater than the first size; this facilitates reliable attachment of a screen to the jumper of the connecting piece, by means
• the hooks or fasteners according to the invention are obtained - directly or not - by injection of a plastic material, in a multi-cavity mold to form a cluster of fasteners, while the fastening part is obtained - directly or not - by cutting, drilling, bending a sheet of metal.
• the junction piece of two screens is obtained from a steel sheet having a thickness less than or equal to 5 ⁇ 10 ⁇ 4 meters and generally at least equal to 10 ⁇ 4 meters; this makes it possible to obtain a robust, light, aesthetic binocular screen, and makes it possible, thanks in particular to its elasticity, to use a single connecting piece for manufacturing binocular screens of shapes and dimensions adapted to several different models of spectacle frames.
• said connecting piece is made of a semi-rigid synthetic or metallic material having a certain elasticity giving it a shape memory.
• said connecting piece is made of a noble metal with shape memory such as beta-titanium.
• the elasticity of the connecting piece and the shape memory property facilitates the installation of the bi-noxious screen and makes it possible to restore the original shape of the bi-noxious screen after possible deformation occurring during handling. of said screen for its installation or removal on or respectively from the frame of the glasses.
• removable optical screens for spectacles which incorporate these fasteners or hooks, and where appropriate such connecting parts of two monocular screens, as well as kits of parts for the manufacture of these screens; the invention is particularly applicable to the production of filter screens.
• Figure 1 illustrates in schematic perspective view a pair of glasses, and a binocular screen of shape and dimensions adapted to the pair of glasses, this screen being shown in front of the glasses of the pair of glasses.
• FIG. 2 illustrates a side view of a hook for fixing a screen to glasses, according to a first preferred embodiment of the invention.
• FIG. 3 schematically illustrates in side view a screen fitted in its upper part and in its lower part with a connecting hook similar to that illustrated in FIG. 2.
• FIG. 4 illustrates the screen of FIG. 3, as well as a lens of a pair of glasses, in a position for fitting the screen by its upper attachment to the upper edge of the lens, before engagement of the lower attachment secured to the screen with the edge of the spectacle lens.
• Figures 5 to 7 successively illustrate three stages of engagement of a screen attachment to a spectacle lens, in schematic side view: in the configuration illustrated in Figure 5, the screen-attachment hook is supported by its face d 'support against the edge of the glass; in the configuration illustrated in FIG. 6, the tooth of the screen attachment is substantially in contact with the middle part of the edge of the glass, while in the configuration illustrated in FIG. 7, the tooth-shaped portion of the attachment d he screen has crossed the edge of the spectacle lens, and the fastener is fitted around part of the edge of this lens.
• Figures 8 to 11 illustrate a connecting piece of two monocular screens used to assemble these two screens to form a binocular screen such as that illustrated in Figure 1;
• Figure 8 is a side view of the connecting piece;
• Figure 9 is a top view of the part of Figure 8 and is a view along IX of Figure 8;
• Figure 10 is a top view of the same part, before folding the tabs of the jumpers provided at each of the two ends of the connecting piece;
• FIG. 11 is a side view of one of the jumpers provided at each end of this connecting piece and is a view along XI of FIG. 8.
• Figure 12 illustrates in schematic sectional view a hook for attaching a binocular screen to a spectacle frame; ce, tte figure illustrates more particularly the screen attachment after cutting its tapered end, the screen attachment hook being provided with a pin extending through the holes respectively drilled in the walls of a jumper a connecting piece, and in the screen to attach to the glasses.
• Figure 13 is a schematic perspective view of an embodiment of a screen attachment similar to that illustrated in the preceding figures.
• the pair 1 of glasses has two lenses 3 framed by a frame 4, as well as two arms 2 mounted articulated with respect to the frame 4.
• the binocular screen 5 comprises two monocular glasses or screens 6 which are connected by a connecting piece 7, each screen comprising three fasteners or hooks 8 used to secure the removable screen 5 to the frame 4 of the pair 1 of glasses; as illustrated in this figure, for each screen 6, two fasteners 8 serve only to secure the screen to the pair of glasses, while a fastener 8 disposed in the upper and internal (or nasal) part of the screen 6, serves further to secure the end of the connecting piece 7 to the screen.
• the fastener 8 comprises a pin 9 secured to three parts 10, 11 and 12 forming a jumper defining a groove or notch 16 and serving to overlap the edge of a spectacle lens or a frame of a pair of glasses.
• the pin 9 made of easily breakable plastic material, is in the form of a cylinder section 90, 92 extending along a longitudinal axis 98 and having a tapered tip 91 facilitating the introduction of the pin into a drilled orifice in a screen.
• the cylindrical part 90, 92 of the spindle comprises two annular protuberances 94 and 95 forming two stops, as well as a face 93 of interface between the spindle 9 and the part 10 of the jumper, this face 93 also serving as a stop; the stops 93 and 94 which are spaced apart by a distance 96 along the axis 98, are respectively intended to come into contact with the rear face (mark 60 in figure 3) and the front face (mark 61 in figure 3) d 'a screen ; for this purpose, the distance 96 separating them is slightly less than the thickness of the screen in the drilling area of the orifice through which this part 92 of the spindle must extend.
• the second annular stop 95 adjacent to the stop 94 is eliminated when the fastener or hook 8 is used to only secure part of the screen 6 to the pair of glasses; this stop 95 is on the other hand preserved when the fastener or hook 8 is used to secure both the screen and the part 7 connecting between two monocular screens, to the spectacle frame 4, as illustrated in FIGS. 1 and 12; for this purpose, the distance 97 separating the stop 95 from the stop 93 is adapted to the thickness of the screen 6 increased by the thickness of the two tabs of the jumper provided at the end of the connecting piece 7, so that the stop 95 comes into contact and bears on the external face of the jumper, as illustrated in FIG. 12.
• the jumper-shaped part consisting of the three portions 10, 11 and 12 of the clip 8, which is made of the same easily deformable plastic material (in particular polyurethane) as the pin 9, has a substantially flat side face 13 and orthogonal to axis 98, a substantially flat bottom face 14 also and parallel to axis 98, and a third curved face 15, these three faces 13 to 15 delimiting the groove or notch 16 serving to receive a portion of wafer of glass ;
• the end 12 of this part in the form of a jumper is tapered and has a sliding support face 17 whose function appears clearly in the illustrations of Figures 5 to 7 showing the operations of progressive engagement and deformation of the fastener for securing the screen to a spectacle lens;
• FIG. 3 illustrates the screen 6, in which two holes 62 and 63 have been drilled near the edge of the screen; in each of these orifices has been engaged the spindle of each of the two fasteners 8 illustrated in this figure, until extraction from the orifice of the stop 94 fitted to the spindle, and cutting of the unused end of the spindle forward of stop 94.
• the upper attachment 8 linked to the screen 6 has been engaged by sliding around the edge 30 of the spectacle lens, in the upper part thereof, of the notch or groove 16 delimited by clip 8; to secure the screen 6 to the glass 3, it then suffices to move the screen 6 relative to the glass 3 according to the arrow 99 illustrated in FIG. 4, that is to say substantially according to a pivoting movement along an axis perpendicular to the plane of the figure and approximately located at the location marked 100 in this figure, which corresponds substantially to the center of the notch 16 of the upper clip 8, and / or to a tangent to the edge 30 of the glass 3.
• this engagement of the lower clip 8 is carried out by placing the tooth-shaped part 12 of the clip 8 in contact with the lower edge 31 of the glass 3, by a push along arrow 99 exerted on the screen 6; with reference to FIG. 6, the continuous exercise of this thrust 99 causes the deformation of the parts 11 and 12 of the fastener 8 and the progressive crossing of the lower edge 31 of the glass 3 by the tip 18 of the fastener 8 which connects the faces 17 and 15 previously described of part 12 of this fastener, until one obtains, as illustrated in FIG. 7, an engagement of the edge 31 of the glass 3 in the notch 16 delimited by the fastener .
• the connecting piece 7 between two monocular screens comprises a blade 71 made of beta titanium whose thickness 72 is for example close to 0.3 mm, which is curved along a radius 73, for example close of
• a jumper 74, 75 which comprises, as illustrated in particular in FIG. 11, three portions of planar walls forming in side view a U-shaped jumper: a planar wall 101 extending inclined relative to the end of the blade 71, and two portions of flat walls 77 and 78 or tongues, which extend in planes perpendicular to the plane of the wall 101 of the rider; each tongue 77, 78 is respectively pierced with an orifice 103, 104 whose dimensions are slightly different, and which are aligned along a common axis 102 inclined relative to the median anteroposterior plane 70 of the part.
• the blade 71 extends along a longitudinal axis 76, while the tongues 77 and 78 extend, when the part is formed (after folding), parallel to a plane 79 forming an angle 1 10 with the axis longitudinal 76 of the blade, so as to facilitate obtaining a binocular screen, the respective optical axes of the two monocular screens are substantially parallel; the axis 102 of the orifices drilled in the tongues 77, 78, which is normal to the plane 79 of these tongues, is inclined at the same angle relative to the median anteroposterior plane 70 of the part.
• the first stop 94 is deformed and compressed radially at the interior of the hole drilled in the screen 6, while the second stop 95 is supported on the tongue 77 of the jumper of the connecting piece.
• the face 17 of sliding support is inclined relative to an axis parallel to the longitudinal axis 98 of the spindle 9, by an angle 170 close to 30 to 60 degrees.

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• Physics & Mathematics (AREA)
• Health & Medical Sciences (AREA)
• Ophthalmology & Optometry (AREA)
• General Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• General Health & Medical Sciences (AREA)
• Eyeglasses (AREA)
• Transforming Electric Information Into Light Information (AREA)

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• 2002
  • 2002-10-25 FR FR0213396A patent/FR2846434B1/fr not_active Expired - Fee Related
• 2003
  • 2003-10-10 EP EP03780215A patent/EP1554625A1/fr not_active Withdrawn
  • 2003-10-10 AU AU2003288314A patent/AU2003288314A1/en not_active Abandoned
  • 2003-10-10 WO PCT/FR2003/003008 patent/WO2004040356A1/fr not_active Application Discontinuation
  • 2003-10-10 JP JP2004547688A patent/JP2006504142A/ja active Pending
  • 2003-10-24 AR ARP030103886 patent/AR041715A1/es unknown
  • 2003-10-24 TW TW92129588A patent/TW200416423A/zh unknown

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