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
  • G02C5/02—Bridges; Browbars; Intermediate bars
  • G02C5/10—Intermediate bars or bars between bridge and side-members
• • 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
  • G02C5/14—Side-members
  • G02C5/146—Side-members having special front end
• • 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
  • G02C5/2209—Pivot bearings and hinge bolts other than screws
• • 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
  • G02C5/2254—Resilient hinges comprising elastic means other than coil spring
• • 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
  • G02C5/2272—Hinges without well-defined pivot axis
• • 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
• • 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
  • G02C2200/22—Leaf spring

Definitions

• the eyeglasses or sunglasses that are usually found in the trade usually have a front frame, which houses glasses, and two branches that rest on the ears. In order to store the glasses, it is necessary to provide a hinge for folding the branches.
• This hinge is most often a point of weakness of the glasses, by the presence of small elements such a mini-screw serving as an axis of rotation.
• European Patent Application EP1596242 proposes a spectacle frame requiring no other part than the front part of the frame and the two branches.
• the front part of the frame is slotted laterally. This slot makes it possible to "open" the straps by elasticity of the frame, in order to easily engage and disengage the glasses of spectacles, and extends to split also a "connecting element", which is a tab bent to lateral extremities of the front part of the frame.
• this piece can be assembled with the end of a branch.
• the two parts cooperate: the connecting element allows the pivoting mounting of the branch, and the branch allows the tight holding of the two parts of the connecting element (and therefore the frame) on either side of the slot , that is to say the locking of the glasses.
• the branch is divided into three parallel deformable blades whose two end blades will come to grip and therefore maintain joined the two parts separated by the slot.
• the rotation is around projections protruding from the connecting element.
• the third blade, the central blade, serves as "spring" of the branches and allows to naturally maintain the pair of glasses in the open position or in the closed position.
• the present invention thus relates to an eyeglass frame comprising a front part of a frame and two glasses branches, one end of which has at least one blade, the front part of the frame having two suitable rims.
• the front portion of the bezel further comprises for each strapping a locking member at the slot, said locking member consisting of at least two superposed levels of complementary patterns on either side of the slot and located substantially in the plane of the front frame portion, which when nested together prevent relative movement of the lower and upper portions of the connecting member in said transverse direction relative to the plane defined by the front frame portion .
• the lower and upper connecting member portions intersect so as to grip said blade beyond a point of intersection of said lower and upper connecting member;
• the end of the branches is divided into at least two blades, said lower and upper connecting element being gripped between the at least two blades of one of the glasses branches;
• At least one blade of a branch and the connection element of the branch have a pair of complementary notches able to engage;
• a bezel branch is divided into three blades including a central blade and two extremal blades, the opening and / or closure of a branch causing the elastic deformation of the central blade;
• the central blade of the glasses branch fits into a slot in the connecting element by which the branch is connected to the front frame;
• a branch of a telescope is divided into two blades, one of which is a lower blade and an upper blade, said lower and upper blades intersecting so that the upper blade is connected to the lower part; connecting element and the lower blade is connected to the upper part of connecting element;
• the lower and upper blades of the branch are placed in a crossed position by application of a mechanical stress, such that the lower and upper portions of the connecting element are clamped together because said lower and upper blades of the branch tend to to return to their original position by uncrossing;
• the upper blade and the lower part of the connecting element are monolithic, or the lower blade and the upper part of the connecting element are monolithic, so that the spectacle frame consists only of 'a piece.
• a strapping of the front frame includes a thinned portion located under the glass
• the straps capable of receiving glasses of spectacles are connected to the front part of the frame by flexible shafts;
• the locking element comprises a first level lower pattern, a first level top pattern, a second level lower pattern, a second level top pattern, the contour of the first level lower pattern substantially coinciding with the outline of the pattern.
• first level top the contour of the second level lower pattern substantially coinciding with the contour of the second level top pattern, the first level lower pattern being substantially identical to the second level top pattern, and the second level lower pattern being substantially identical to the superior first level pattern;
• the two levels consist of two layers, and the lower pattern of one of the levels and the upper pattern of the other layer are substantially wave-shaped;
• the locking element has a helical shape.
• Figures 1 to 7 are views from different angles of all or part of a first embodiment of a spectacle frame according to the invention.
• FIGS. 8 to 15 are views from different angles of all or part of a second embodiment of a spectacle frame according to the invention.
• Figures 16 to 23 are views from different angles of all or part of a third embodiment of a spectacle frame according to the invention.
• Figures 24 to 30 are views from different angles of all or part of a fourth embodiment of a spectacle frame according to the invention.
• FIGS 31 to 34 illustrate various possibilities of locking element in spectacle frames according to the invention
• Figures 35 to 39 are views from different angles of all or part of a fourth embodiment of a spectacle frame according to the invention.
• FIGS. 40 to 45 illustrate various other locking element possibilities in eyeglass frames according to the invention. DETAILED DESCRIPTION
• the invention relates to a spectacle frame.
• a spectacle frame By this term refers to the entire frame of a pair of glasses adapted to support glasses. It will be understood that the invention relates to all types of glasses, including both eyeglasses and sunglasses, the only difference residing in the nature of glasses (corrective lenses, tinted glasses, progressive lenses ).
• the eyeglass frame according to the invention comprises on the one hand a front part 4 of frame and on the other hand two branches 5 of glasses.
• the front part 4 corresponds to the part of the frame that receives the lenses 6 and lands on the nose.
• it comprises possibly as seen in the figures a pair of wedges nose-rest which do not hurt the nose of the wearer of glasses.
• the branches 5 as for them rest on the ears of the wearer of spectacles.
• the front portion 4 has two hoops, which surround the periphery of the glasses 6 and lock.
• the front portion 4 may include a groove of width equivalent to the thickness of the glasses.
• the front portion 4 may even include a tongue 41 2 (see FIG. 9) over all or part of the circumference of the strapping, fitting into a groove of the glass 6.
• 40a and 40b show that the hoops adapted to receive glasses 6 of glasses can be connected to the front part 4 of the frame by flexible shafts 431, 432, 433.
• the glass 6 is held by several arcs which are flexibly coupled with the front part 4.
• U very strong deformation of the front portion 4 such that the q ue shown in Figure 40b will make that the axes 431, 432 and 433 will deform without transmit the constraint to the arches that constitute the strapping of glasses.
• the lenses will not be damaged, while such a deterioration will occur in the light of the rest of the world.
• reinforcements 441, 442 may be arranged on the front part (preferably on the internet face to hide them) near the arches in order to compensate for the decrease in rigidity that may be caused by the flexible coupling of the straps and the front part 4.
• each strapping is split in a slot as seen in Figure 2.
• This slot is through, and substantially radial. By acting on the rigidity of the front portion 4, this slot can be widened, thereby increasing the diameter of the strapping, hence the mobility of the glass 6.
• the set of materials usually used in eyewear, such as metal, horn, flaking, plastic, etc. are suitable in the vast majority of cases to achieve the front part 4 (except for example if the front end is too thick, so too rigid).
• connection element 2 For the connection between the front part 4 and the branches 5, the front part 4 has on each side a connection element 2. These two connection elements 2 extending in a direction transverse to the plane defined by the front part 4 of mount. Indeed, when the pair of glasses is worn (the branches 5 in the open position), the branches 5 extend on the sides of the face and are therefore substantially perpendicular to the front portion 4.
• the connecting elements 2 are intended to be find in the axis of the branches 5 when they are open, as can be seen in FIG. It will be understood that according to the shape of the face and according to aesthetic considerations, the connecting elements 2 and / or the branches 5 may not be exactly perpendicular to the front part, and form a slightly more open angle or a little more closed.
• this angle is orthogonal in the following description (with reference to the reference visible in Figure 3, it will be considered by convention that the front portion 4 extends in the xOy plane, and that the connecting elements 2 and branches 5 when they are in the open position extend in the plane yOz), but the skilled person will keep in mind that it suffices that the two connecting elements 2 extend in a transverse direction (that is to say substantially non-collinear) relative to the plane defined by the front portion 4 mount.
• transverse direction that is to say substantially non-collinear
• the position of the slot in each strapping is chosen such that it extends into the connecting element 2 so as to define a lower part 2a of connection element and a upper part 2b of connecting element, that is to say in particular in the upper outer corner of the front part 4.
• the opening / closing of the strapping involves the opening / closing of the connecting element 2.
• the connecting element 2 can be designed so that its two halves 2a, 2b are joined when the strapping is closed (see FIG. 12 for example), or else in all cases spaced apart (see Figure 16 for example).
• branches 5 one end has at least one blade 1a, 1b (preferably two, and even more preferably three), which serves as a locking piece.
• the blade or blades 1a, 1b may in particular be in a material similar to (or not) that of the front portion 4 (metal, plastic, horn, etc.) and thus have a certain flexibility. They can for example as well made in a metal sheet as in a machined solid material, and possibly also in a material different from the rest of the branch 5.
• the outer faces of the lower and upper portions 2a, 2b are in abutment with the inner faces of the blades 1a and 1b. And since structurally a constraint occurs when one tries to spread the blades 1a, 1b, the latter thus prevent any separation of the lower and upper parts 2a, 2b when the branches 5 are in place, they are open, closed, or even in an intermediate position (since the axis of rotation of the hinge, Oy, coincides with the direction of the stress applied to the lower and upper parts 2a, 2b).
• a second architecture with a single blade 1a, 1b per branch 5 of the frame according to the invention represented for example in FIG.
• the lower and upper part 2a, 2b of connecting element 2 intersect so as to grip the blade 1a, 1b beyond a point of intersection of said lower and upper part 2a, 2b of connecting element 2.
• a "spacing" of the two connecting element parts at the front part 4 of frame becomes a "bringing together" of these same parts at the level of their distal extremity (ie ie beyond the crossing point).
• the spacing of the two connecting member portions 2 involves the closing of a recess defined by the notches 224 vis-à-vis the lower and upper portions 2a, 2b of the element 2.
• the blade 1a, 1b (see Figure 37b) of the branch 5 is inserted therein, it prevents the closure of this recess and thus prevents mechanically the separation of the parts of the element connection.
• the invention relates to any frame in which the lower and upper part 2a, 2b of connecting element 2 are kept in contact (it is understood by keeping in contact prevented from moving away according to Oy), in a way or on the other hand, by the at least one blade 1a, 1b of one of the branches 5 of spectacles.
• any relative movement of the blade or blades 1a, 1b substantially along the axis of the branch 5 is naturally almost impossible, unless blade 1 a, 1 b does not bend. This would indeed result in a shortening or an elongation of the blade, but as in the previous case the blades resist such deformation by inducing a reciprocal stress.
• the connection between the branches 5 and the connecting elements 2 (more precisely respectively between the blade 1a and the lower part 2a, and between the blade 1b and the upper part 2b), another direction is obtained according to which the relative displacement of the lower and upper parts 2a, 2b is prevented.
• it is the direction Oz when the branch 5 is open, of the direction Ox when it is closed, and a component of the two when it is in an intermediate position. . It's always a direction orthogonal or substantially orthogonal to the first blocking direction, Oy.
• the cooperation between the branches 5 and the connecting elements 2 prevents any relative displacement of the two parts of the straps in two substantially orthogonal directions (which can not be collinear and therefore form a "blocking plane"), but not according to a third direction that corresponds to the vector product of the first two (a direction both orthogonal to the first two).
• the mount according to the invention provides a solution to this problem through an element ensuring a permanent locking of any relative movement of the lower and upper parts 2a, 2b, and regardless of the position of the branches 5, and without additional parts.
• the front portion 4 of the bezel further comprises for each strapping a locking member 3 at the slot.
• This locking element 3 can be seen in the numerous figures, both in the open position and in the closed position, and particularly sees its structure in FIG. 2. It is in fact a particular section of the slot opening the strapping, and doing it not straight as in the previous art, but curved and especially different on two levels.
• the locking element 3 therefore consists of at least two superimposed levels of complementary patterns 31 1, 31 2, 321, 322 on either side of the slot and located substantially in the plane of the front portion 4 when they are engaged together prevent a relative movement of the lower and upper portions 2a, 2b of the connecting element in said transverse direction relative to the plane defined by the front portion 4 of mount (c). that is, the direction Oz).
• pattern will be understood a shape defined by a particular plot of a section of the slot (a plot defines a pair of patterns, an upper pattern and a lower pattern, separated by the cut and therefore naturally complementary: in effect means that the cutting is quasi-linear, and therefore that there is no particular removal of material at the level of the slot, so that in every point of the cut there is a substantial coincidence between the lower pattern and the upper pattern, from which "complementary" patterns on both sides of the slot) with respect to a median slot plane (xOz), and by “superimposed levels” it will be understood that the pattern is not constant when one moves in the front part 4 in the direction Oz, and that it takes at least two different traces.
• the two levels here consist of two distinct layers, each of these layers extending substantially over the half the thickness of the front part 4 of mount.
• the two levels here consist of two distinct layers, each of these layers extending substantially over the half the thickness of the front part 4 of mount.
• first layer 31 1 a lower pattern of first layer 31 1, a higher pattern of first layer 321, a lower pattern of second layer 312 and an upper layer second pattern 322.
• the contour of the first level lower pattern 31 1 then coincides substantially with the outline of the first level top pattern 321, as well as the contour of the second level lower pattern 321 with the outline of the first layer 321.
• the patterns 31 1 and 322, and on the other hand 312 and 321 have facing portions, and therefore bearing surfaces substantially in the plane formed by the front portion 4
• the patterns 31 1 and 322 prevent, by contact, a relative displacement of the lower and upper parts 2a, 2b (and thus of the two half of the strapping) according to the vector z
• the patterns 31 2 and 321 prevent by contact a relative displacement of the lower and upper parts 2a, 2b (and thus of the two half of the strapping) according to the vector
• the locking element 3 thus prevents any relative displacement of the lower and upper parts 2a, 2b along the axis Oz, even when the branches 5 are in the closed position.
• FIGS. 1 to 7 A first particularly advantageous embodiment is shown in FIGS. 1 to 7.
• the various advantageous embodiments which will be successively described show all characteristics presented above, and are distinguished in particular by their aesthetics, and mechanical advantages such as having open / closed positions of bistable branches 5, or have manufacturing facilities. Those skilled in the art will understand that the invention is not limited to any of these advantageous embodiments, and will adapt to many other models.
• the first four embodiments have branches 5a at least two blades 1a, 1b.
• the interlocking between the branches 5 and the connecting elements is done by means of complementary notches adapted to fit: advantageously on the one hand one of the blades 1a, 1b (it will be named for convenience lower blade 1a) of the branch 5 and the lower part 2a have a first pair of complementary notches able to engage, and on the other hand the other of the blades 1a, 1b (it will be named for convenience upper blade 1b) of the branch 5 and the upper part 2b of the connecting element 2 have a second pair of complementary notches suitable for s 'max out.
• Notches adapted to fit together include, as seen in the figures, a cutout on the upper half (for the lower blade 1a and the upper part 2b) or on the lower half (for the upper blade 1b and the lower part 2a) so that the cuts are all substantially in the direction Oy (to make the axis of rotation), facing outwardly of the connecting member 2 and inwardly of the blades 1a, 1b (see Figure 5 and 6), so as to allow the clamping of the connecting member 2 by the blades 1a, 1b.
• the cuts may be of unequal sizes (and extend over more or less than half of the element), or even at the extreme concern only the connecting element 2, the cut being as deep as the width of a thin blade 1a, 1b: the latter is inserted over its entire width in the cut.
• this case remains a the case of "complementary pairs of notches", since it is possible to define their axis. This case will be discussed for the second embodiment.
• the opening and / or closing of the eyeglass branch 5 causes the relative deformation of the blades 1a, 1b of the branch 5. More precisely, as can be seen particularly in FIG. 6, the fact that the two pairs of notches are not aligned there is "two axes of rotation" between the leg 5 and the front portion 4.
• the opening / closing of the branch 5 corresponds to a rotation about a virtual axis equidistant from them both, this virtual axis being located at the intersection between the connecting element 2 and the median plane between the two blades 1 a, 1 b (which corresponds substantially to the plane that must be the rest of the branch 5).
• move from the open position to the closed position of the branch 5 causes a twist / curvature of the lower blade 1 has relative to the upper blade 1b.
• the blades 1a, 1b are substantially aligned when the leg 5 is open, and form views from above a "Y" when the leg 5 is closed (see Figure 7).
• the opening / closing branches 5 in such a configuration involves the variation in length of the blades 1a, 1b, which is difficult, but can be done by slight bending of the blade.
• the lengths of the blades 1a, 1b are chosen such that the position "at rest” (that is to say the position in which there is no stress on the length of the blades 1a, 1 b) corresponds to the closed position of the branch 5. This is therefore a minimum potential.
• the upper blade 1b in the configuration shown in Figures 6 and 7) is contracted, while the lower blade 1 has undergone rather a stretch. The elongation / shortening of the blades 1a, 1b being almost impossible, the upper blade 1b hinges.
• the mounting of the mount is simple and is as shown in Figure 5: after installing the glasses 6 in the strapping, for each branch 5 is engaged first the notch of the lower blade 1 has in the notch of the lower part 2a of the connecting element 2, then slightly twisting the branch 5 downwards to pass the upper branch 1b above the upper part 2b, and nest their respective notches.
• FIGS. 8 to 15 show two slight variations.
• a branch 5 of a telescope is divided into three blades 1a, 1b, 1 2, including a central blade 1 2 and two end blades 1a, 1 b (respectively lower and upper), the opening and / or closing of a branch causing the elastic deformation of the central blade 12.
• This deformation is particularly illustrated in Figure 9: the central blade 12 fits advantageously in a slot formed in the connecting element 2 by which the branch 5 is connected to the front portion 4 mounting.
• the two pairs of notches through which the end plates 1a, 1b and the connecting element 2 engage are aligned. We have a unique axis of rotation.
• the slot in formed in the connecting element is not aligned with this axis of rotation.
• the blade 12 which inserts into it thus undergoes, as in the previous case, a deformation with respect to the extremal blades 1 a, 1 b, unlike the fact that it is movable in translation inside the slot, and therefore that the deformation does not consist in a bending, but simply a curvature at its base (compare the two branches 5 of the frame of Figure 10).
• FIG. 11 which represents in detail the branch 5
• the two end plates 1a, 1b advantageously meet at their ends via a rod 51.
• this embodiment does not imply any relative deformation of the lower extremal blade 1a with respect to the upper extremal blade 1b.
• These two blades 1a, 1b have the same movement, so it is interesting to secure them to prevent any unplanned deformation.
• the notches on the blades 1a and 1b are a bit special: instead of splitting the two blades 1a, 1b on their inner half as was the case in the first embodiment, two recesses 231 and 232 are made in the thickness of the blades 1a, 1b.
• two half-cuts instead of making a cut (ie a recess over the entire thickness of the blade), two half-cuts are made (ie two recesses not vis-à-vis on half the thickness of the blade).
• the blades 1a, 1b have an "S" profile.
• the lower and upper portions 2a, 2b then have, as can be seen in FIG. 12, lugs 221 and 222 complementary to the recesses 231 and 232.
• each leg 5 and the associated connecting element 2 have two pairs of complementary notches able to engage.
• the use of "half-notches" provides an aesthetically interesting effect of total complementarity of the branch 5 and its connecting element. As seen in Figure 8, when the branch 5 is unfolded the two parts fully integrate.
• a portion 233 of the central blade 12 is partially hollowed so as to cooperate with a hollow portion 223 common to the lower and upper portions 2a, 2b of the connecting element 2, and the central blade 12 being finished by a pin 234. inserted into said slot 224 formed in the connecting element 2. All this makes it possible, on the one hand, for the central blade 12 to be integrated in both the connecting element 2 and the end plates 1a, 1b, and allowing on the other hand to prevent with the pin 234 that the central blade 12 out of the hole 224 if it was forced on the branches 5 (opening them too).
• FIG. 13 A first slight variant of this embodiment is shown in FIG. 13. As can be seen, the end plates 1a and 1b are not of equal width. Unlike the case described above, the branches 5 and the connecting elements 2 are not symmetrical. At the level of the lower junction (lower portion 2a / lower extremal blade 1a), it can be seen that the two "half-cuts" and the S-profile are not found, but a cut-out throughout the thickness as in the notches of the first embodiment.
• the blade is no longer connected to the rest of the branch than via the rod 51 which in the drawings connects the ends of the two extremal blades 1a, 1b.
• This configuration is advantageous since on the one hand the central blade 12 is less opposite and can be deformed freely, and on the other hand the two parts 2a, 2b of the connecting element 2 are securely held together while having an internal space (defined by the slots which make the end of the blade 12 is disjoint extremity blades 1a, 1b) which is not a closed space in the plane formed by the branch 5.
• this internal space "Opens" on the outside of the branch 5. This makes it easier to assemble the branch 5 to the connecting element 2 than in the previous case where a rather complex movement of insertion of the connecting element 2 between one of the end plates 1a, 1b and the central blade 12 followed by a rotational movement was necessary.
• the central blade 12 is in fact an extremal blade. As seen, the blades 1a and 1b are in fact a single block.
• the central blade 12 is part of a lateral arm that is just folded against the rest of the branch 5. A little material is however removed at the head 233, 234 of the central blade so that it can "cross" the rest of the branch 5.
• this configuration is more aesthetic, because there are no more visible slots separating the blades 1a, 1b 12, since the central blade 12 is hidden behind the rest of the branch 5.
• FIGS. 16 to 23 A third particularly advantageous embodiment is shown in FIGS. 16 to 23.
• the branch 5 of the bezel is divided into two blades 1a, 1b. And as seen for example in Figure 16, the lower and upper blades 1a, 1b cross to reverse. It is then the upper blade 1b which is connected to the lower part 2a connecting element and the lower blade 1a which is connected to the upper part 2b of connecting element 2.
• each branch 5 is the upper blade 1b and the lower part 2a of connecting element, or the lower blade 1a and the upper part 2b of connecting element ( 2), be monolithic.
• it is the upper part 2b and the lower blade 1a which are monolithic.
• Crossing reconnects the other two (the upper blade 1b and the lower part 2a). It is always possible to have three distinct parts (the front part 4 and the two branches 5) and two interlocking branches (upper and lower part), but the frame in one piece has many advantages, both on the financial plan only on the aesthetic level.
• FIGS. 24 to 30 A fourth particularly advantageous embodiment is shown in FIGS. 24 to 30.
• five are required here.
• the blades 1a, 1b are hidden and no cutout is visible on the branches 5. It is aesthetically the model pl usa shop, with all the advantages described above.
• a tongue 10 is inserted into a cavity provided for this purpose in the branch 5. It is this tongue 10 that has the two blades 1a and 1b that i enclose as explained above the two parts 2a, 2b of the connecting element. It is further noted that the tongue 10 has at the end opposite the blades 1a, 1b a kind of hook which will be forced into the branch 5. As can be seen in Figure 27 it s is the only point of attachment between the leg 5 and the tongue 1 0. The latter is chosen material and thickness such that it can be deformed so that its end having the blades 1 a, 1 b can slightly away from the rest of the branch 5. This is a deformation similar to that which could have the central blade 12 relative to the extremal blades 1 a, 1 b in the second embodiment.
• the notches on the lower and upper portions 2a, 2b of the connecting element 2 are arranged in such a manner that neither the deflection pin nor the element portion of FIG. the connection beyond the notch is substantially longer than it is wide (in other words the notch is not too close to the end of the connecting element 2).
• the section of this lug according to the plane xOz is an elongated rectangle, which is inserted into the gap between the branch 5 and the tongue 10.
• Figures 28 to 30 show a slight variant of this fourth embodiment.
• the front portion 4 can be covered with a shell 7.
• This shell 7 can be changed by the user to change according to his desires the appearance of his eyeglass frame. It also makes it possible to hide the locking elements 3 and the connecting elements 2, so it is possible to have no visible cutout on the entire spectacle frame.
• the front part 4 of mount can be chosen the simplest and cheapest possible, since it is hidden by the shell 7.
• the shell 7 advantageously comprises connecting element covers 2 also extending in a direction transverse to the plane defined by the front portion 4 mounting.
• the connecting elements tend to deform outwards.
• the shell 7 prevents this deformation by generating reciprocal constraints a, b and c which allow the locking of the front portion 4 in the shell 7.
• the front portion 4 is as "clipped" in the shell 7.
• the blades 1a , 1b branches 5 further improve this blocking of the front portion 4 in the shell 7.
• FIGS. 35 to 39 A fifth particularly advantageous embodiment is shown in FIGS. 35 to 39.
• the blade is at the same time referenced by the numbers 1a and 1b, since it simultaneously plays the role of these two blades of the other embodiments: as the lower blade 1a its face upper is supported on the underside of the lower part 2a (that i is in the upper position beyond the point of intersection), and as upper blade 1b its lower face bears on the upper face of the upper part 2b (which is in the lower position). beyond the crossing point). It is, however, that it is enclosed by the connecting element 2, and not the other way around.
• the blade 1a, 1b is oriented towards the rear of the branch 5 (there is therefore a 180 ° turn) so as to create a hinge.
• the coupling element 2 may have the same object and more variants: either a simple notch 224, as shown in FIGS. 36a and 36b, or a more complex shape with additional external lugs not aligned with the recess provided for the passage of the branch 1a, 1b (see Figures 36c and 36d), relatively similar to that shown in Figure 1 2c.
• the branch may have two extremal blades (not shown) in addition to the main blade 1a, 1b, but it should be noted that these additional blades have no effect of blockage e, ma is only the "torsion" effect described above which makes it possible to have stable open and closed positions of branches.
• This variant is similar to the second embodiment, with the difference that the lower and upper parts 2a, 2b of the connecting element cross each other.
• the branch 1a, 1b may be as shown in FIGS. 37a, 37b, 38a and 38b being extended by an inward folding noted 1 2 (since it is equivalent to the central blade 1 2 of the second embodiment) which acts as a spring.
• the rotation of the branch 5 from the open position towards the closed position imposes a spacing ab between the branch 5 and the central blade 12, whence a deformation which passes through a maximum potential. Curving the end of the blade 12 further enhances this effect.
• This embodiment with a locking blade is particularly robust. As can be seen in FIG. 39a, it supports, without any problem, twists, in particular towards the outside of a branch 5. Complements on the locking element
• the locking element 3 is an element ensuring that there can be no relative movement of the two halves of the strapping in the direction Oz. It consists of at least two superimposed levels of patterns 31 1, 312, 321, 322 complementary on either side of the slot and located substantially in the plane of the front portion 4 mount. The locking element 3 is particularly visible in FIGS. 2, 3, 4, 18, 25 and 31 to 34.
• the invention is not limited to any particular pattern geometry. It is only desirable that there are suf fi cient support suf fi ciently large enough for there to be a blocking effect. Each pair of facing surfaces further prevents only displacement in one direction of movement. For example, considering FIG. 2, supposing that the lower second layer pattern 31 2 is suppressed (such a case would not be in accordance with the invention, since one of the lower and upper units of a level would not be more complementary on both sides of the slot: there would be a vacuum), the upper pattern of first layer 321 no longer have support surface facing.
• the lower level of the first level 31 1 is substantially identical to the second level top pattern 322, and the second level lower pattern 312 is substantially identical to the top pattern of first level 321.
• the locking element 3 has a central symmetry.
• the patterns are made so that their median plane includes the center of symmetry.
• waveform any form of bump substantially curved, in other words deviating laterally.
• This form has a hook function, and as can be seen in FIG. 4, it can indifferently be oriented to the left as to the right.
• the waveform requires a certain force to be nested (along a path J visible for example in FIG. 25), and holds in place better.
• the vagu-shaped pattern may be completed with a male stud 331 (and its female counterpart 332) on the complementary pattern.
• the interlocking of this pin 332 is made by elasticity of the front part of the frame. This pin still significantly improves the self-locking effect offered by the waveform.
• this pin can also be used on the connecting element 2 (see the pin 2331 in Figures 45a, 45b and 45c) to enhance the stability of the position of the branches in case of vibrations. In fact, it is necessary to prevent the branches from opening spontaneously when the glasses are folded.
• the reinforcing effect further enhances the locking effect imparted by 3. Indeed, when the glass 6 is in place, it comes to press the entire periphery and the two halves of the strapping have natural tendency to deviate. In the absence of thinning, this constraint is of vertical axis (according to Oy).
• a thinning 424 of the strapping located under the glass 6 facilitates locally its deformation, which changes the orientation of the stress which tends to spread the two halves of the strapping on both sides of the slot: represented by the vectors a and S in Figure 1 8, this stress deviates from the vertical, and is then substantially orthogonal to the main direction of the wave-shaped pattern 31 1 of the locking element.
• the locking element 3 in two layers as seen in most of the figures is mainly by chemical cutting. Not having two layers but continuously varying from one pattern level to another level (as seen in FIGS. 32 to 34) allows the use of other manufacturing techniques.
• the bevel cut as seen in Figure 32 is achievable by mechanical milling.
• the bearing surfaces are oblique, and not vertical as in the case of two layers, but as the two parts 2a, 2b of the connection element are kept in contact, this does not in any way diminish the blocking efficiency of the locking element 3.
• Figs. 44a, 44b and 44c an embodiment of the locking member 3 having a helical shape, the lower level first pattern (311), upper level first pattern (321 ), lower second level pattern (312), and second level top pattern (322) being helix portions.
• the locking element is assembled by a rotational movement. This form has a strong lock and is aesthetic.

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

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• 2011
  • 2011-05-24 FR FR1154502A patent/FR2975791B1/fr not_active Expired - Fee Related
• 2012
  • 2012-05-24 EP EP12724322.8A patent/EP2715434A1/de not_active Withdrawn
  • 2012-05-24 WO PCT/EP2012/059745 patent/WO2012160154A1/fr active Application Filing

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