FR3110715A1 - Eyeglass frames and temples - Google Patents

Abstract

Spectacle frame (2) comprising a pair of rims (20) connected by a bridge, a pair of tenons (6) intended for fixing a pair of glasses branches (4), and a pair of branches (4) removable, each of which has a fastening end with a tenon (6), characterized in that the pair of branches (4) is fixed magnetically to the pair of tenons (6). Figure to be published with the abstract: Fig. 2b

Description

Eyeglass frame and eyeglass temples

The invention relates to a spectacle frame and the associated branches, in particular the manner of fixing the spectacle branches which are advantageously removable.

Spectacles comprise a frame intended to carry two lenses, and two opposite branches which are fixed to two tenons of the frame. The attachment of the branches to the tenons is done by screws. However, this fixing remains fragile, and the loosening of the screws, or even their loss, is relatively frequent.

The object of the invention is to propose another solution for attaching the temples of spectacles, which is fast and solid, while being aesthetic. In addition, the attachment proposed by the invention makes it possible to make the branches removable, which can thus be easily changed to personalize the glasses.

According to the invention, the eyeglass frame comprises a pair of straps connected by a bridge, a pair of tenons intended for fixing a pair of eyeglass arms, and a pair of removable arms, each of which has an end for fixing with a stud, and is characterized in that the pair of legs is magnetically attached to the pair of studs.

The branches are fixed by magnetization to the tenons. The branches have magnetic attachment means.

A magnetic fixing provides a solid assembly without the disadvantage of the fixing screws of the prior art. In addition, this magnetic attachment provides speed and simplicity of implementation.

According to one characteristic, the fixing end of each branch comprises two magnets which interact by attracting each other, while each tenon has a through hole which is crossed by the two magnets attracted against each other. The hole that crosses the thickness of the tenon is arranged in a plane perpendicular to the plane of the rims of the frame.

In particular, the branches are fixed by clipping, the two magnets being able to be separated for the introduction between them of each branch and the sandwiching of each tenon through the through hole. The spacing of the magnets is done by pushing the branch in relation to the tenon. To disassemble the branches, simply pull on them, which will force the magnets apart and release them from the through hole.

According to another characteristic, the fixing end of each branch comprises two facing and spaced apart housings, each housing accommodating a respective magnet. The space between the housings ensures a vacuum when the magnets are moved apart to allow the post to pass. Preferably, the magnets comprise a coating or interface film with the interior of the housings, made of Teflon or silicone. The coating film can surround the magnets (except between their contact surface) or be located between each magnet and the interior of each housing.

According to yet another characteristic, the fixing end of each branch comprises between the two housings and according to the extension of the branch, an oblong notch which is intended to accommodate a fixing wing for each tenon. Advantageously, each tenon has a general L-shape, being provided with a first wing integral with a strapping, and with a second wing perpendicular to the first wing and constituting the fixing wing on the eyeglass arm, preferably the second wing comprising a recess serving as an abutment with the bottom of the notch of the branch.

According to a preferred example of a frame, each strapping (in particular metal) comprises an elongated core with an outline adapted to the desired geometry of the strapping, and has two opposite faces, a so-called inner face which is intended to face the edge of a glass to be strapped, and which comprises a relief element protruding by extending continuously and perpendicular to the core, in particular each strapping having a profile whose cross section is T-shaped, the relief element being intended to cooperate with a groove drawn in the edge of a lens intended to be mounted in each strapping. Thus, the particular shape of the core of each strapping with this element in relief provides effective support for the glass which is, for its part, equipped on its edge with a reception groove; this makes it possible to provide a width of the core of the frame which is reduced compared to existing metal strapping, providing a frame with an extremely discreet appearance, the metal wire/the core in the manner of an edging. The term "width" of the core in the rest of the description means the dimension perpendicular to the direction of development of the strapping and intended to be parallel to the edge/thickness of the glass, that is to say the dimension from one longitudinal edge to the other longitudinal edge of the elongated web.

Still in an exemplary embodiment of the frame, each strapping (in particular metallic) comprises an interrupted part whose opposite free ends comprise means for fixing by mutual cooperation, preferably by clipping, in particular by cooperation of male-female shapes by mutual engagement, such as a rigid and elastic tongue secured to one of the ends of the strapping capable of engaging in a slot formed in the other end. Such fixing by cooperation of male-female shapes avoids the usual screw fixing. Advantageously, each tenon is integral with each strapping at the level of the interrupted part.

In a preferred example of a frame, the bridge connecting the two strappings comprises means for adjusting its height relative to the strappings, in particular the bridge is a part independent of the strappings and comprises means suitable for fitting on each strapping and being maintained fixed, preferably by crimping, at the desired height. The height of the bridge is thus easily adaptable during manufacture while minimizing production costs.

The magnetic attachment of the temples according to the invention can be adapted to any type of frame, regardless of the type of assembly of the studs to the strapping of the frame.

According to another characteristic, the magnets, in particular of cylindrical shape, are arranged in housings preferably secured to the end of the branch. The magnets, while being prisoners of the branch, are able to be moved transversely to the axis of the branch (movable vertically) to come into contact with or separate from each other. This particular embodiment of magnetic attachment by sandwiching the tenon of the frame via two magnets integral with the temple and coming into contact by magnetization transversely to the longitudinal axis of the temple, provides a magnetic fixation system by secure magnetization and strong. In addition, for example in the event of the frame falling, the branch can come apart without risk of the post breaking. Finally, to open and close the temple, the magnets remain fixed within their housing secured to the temple, are in contact with each other and are stuck in the hole in the frame post, while the temple rotates around the vertical axis of the magnets. These movements can be facilitated by the presence of the Teflon or silicone coating or interface film located between the magnet and the branch.

The frame may include a removable trim fixed by clipping onto the frame, in particular the trim includes at least one groove to cooperate with the core of the frame, the bridge and the tenons. A groove is provided inside each rim to cooperate with the core of the rims of the frame. Grooves are made at the back of the trim to cooperate with the bridge and the tenons of the frame. The core of the frame has two wings on either side of the element in relief (and perpendicular to said element in relief), on the edge of which the walls of the groove of the hubcap are clipped. The groove formed at the level of the two rims of the trim to cooperate with the core of the rims of the frame is shallower than the grooves at the rear which must cooperate with the bridge and the studs of the frame.

The invention also relates to eyeglasses comprising an aforementioned frame of the invention, and a pair of lenses.

Finally, the invention relates to a branch of spectacles, characterized in that it is capable of being fixed magnetically to a post of a spectacle frame and conforms to an aforementioned branch of the spectacle frame of the invention.

In the rest of the description, the terms "height", "front", "rear", "vertical" are used in the context of normal positioning of the glasses when worn by a user.

The present invention is now described using a purely illustrative example and in no way limiting the scope of the invention, and from the accompanying illustrations, in which:

or FIG. 1 represents a front perspective view of a pair of spectacles made from a spectacle frame according to an exemplary embodiment of the invention with regard to the strapping of the frame.

or FIG. 2a is a partial perspective view from below of the frame of FIG. 1, at the level of a tenon of the frame and before attachment of the associated strapping, as well as of the attachment according to the invention of a branch of bezel to the tenon of the frame.

or figure 2b corresponds to figure 2a showing the branch fixed on the tenon.

or FIG. 3 is a vertical cross-sectional view of the bezel of FIG. 1 along a plane passing through a glass of the bezel.

or FIG. 4a represents a partial perspective view of a preferred embodiment of the bridge of the frame, before its attachment to the strapping of the frame.

or figure 4b corresponds to figure 4a after fixing.

or FIG. 4c is a partial schematic front view of a lens before cooperation with the frame to show the localized cutout of the thickness of the lens in the form of a notch to accommodate the means for securing the bridge to the spectacle frame without tension.

or FIG. 5a is a perspective view of the front face of a trim to be clipped onto the front face of the frame, to modify the aesthetic appearance of the glasses.

or Figure 5b corresponds to the rear face of the hubcap of Figure 5a.

or FIG. 6 represents the cross-sectional view of the bezel of FIG. 5a assembled with the frame of FIG. 1, in a plane passing through a lens of the bezel.

or FIG. 7 is a partial perspective view of the hubcap of FIG. 5a showing the detail of the part intended to cooperate with a strapping and a tenon of the frame.

or FIG. 8 is a partial perspective view of the trim of FIG. 5a showing the detail of the part intended to cooperate with a strapping and the bridge of the frame.

or FIG. 9a is a diagrammatic view in vertical section and in a plane parallel to the face of the frame according to the invention, showing a stud and the associated bezel arm of FIG. 2a, before their assembly.

or figure 9b corresponds to figure 9a during assembly.

corresponds to Figure 9b after assembly.

The device The pair of glasses 1 of the invention illustrated in the figures comprises a frame 2, a pair of lenses 3 fixed in the frame, and a pair of specific branches 4 according to the invention and described below.

The frame 2 comprises two strappings 20, a bridge 5, and two opposite studs 6 to which the temples 4 of the glasses are respectively fixed.

The tenons 6 have particular characteristics which will be detailed later, for their association with the branches 4 of the invention. Advantageously, each tenon 6 has an L-shape, and comprises a first wing 60 secured to the hoop 20 and a second wing 61 which extends the first wing 60 orthogonally.

In the illustrated example of glasses, the rims 20, the bridge 5, and the two studs are metallic.

With regard to FIG. 2a, each strapping 20 comprises an interrupted part whose opposite free ends 21 and 22 are connected to each other after insertion of a lens 3 in the strapping, by connecting and fixing means. 23A, 23B.

Each strapping 20 is made of a metal wire whose development follows a geometry adapted to the desired shape of the strapping. The wire has a non-circular section and has a base whose section is rectangular in shape. Each hoop comprises an elongated core 24 whose outer face 24A is flattened, being able to be flat or slightly curved, and a longitudinal element in relief 25 which projects from the inner face 24B of the core and in a perpendicular direction. to the core 24, preferably in a median plane of the core. In a cross section of the longitudinal development of the strapping, the strapping/thread has a T-shaped profile (FIGS. 2a, 2b and 3). The relief element 25 is preferably continuous and follows the entire outline of the strapping 20.

Each lens 3 comprises over its entire periphery and in its edge 30, a continuous groove 31 (FIG. 3) which accommodates the raised element 25 of the frame, while the core 24 rests on the edge of the each side of the throat.

The element in relief 25 has a height (dimension perpendicular to the core) which is of the order of 0.8 mm. The depth of the groove 31 of the lenses is greater than the height of the element in relief 25 so that the core 24 bears directly on the edge 30 of the lens 3, and that the distal end (opposite to the core) of the element in relief 25 is not in direct contact with the bottom of the groove 31. An elastic silicone seal can be inserted at the bottom of the groove 31. The width of the groove 31 must be slightly larger than the width of the relief element 25.

Preferably, the core 24 of a rim/frame has a width less than or equal to the edge/edge of the lens, providing a very discreet metal frame. This feature is possible due to the presence of the element in relief 25 capable of cooperating with the groove 31 of the lenses to ensure the maintenance of the frame. Of course, the frame is fixed by the elastic strapping and its mechanical clamping to the lenses.

The dimensions of the metal frame are for example the following: of the order of 2.8 mm for the width of the core 24, 0.6 mm for the thickness of the core, 0.8 mm for the height of the relief element 25 and 0.6 mm for the width of the relief element.

The connection of the two ends 21 and 22 of each strapping 20 is made at the level of each tenon 6 of the frame. In the illustrated embodiment (FIG. 2a), tenon 6 is monolithic with one of the ends 21 of strapping 20.

The connecting means 23A and 23B of the two ends 21 and 22 of each hoop 20 are formed respectively of male and female shapes which cooperate by mutual engagement. The connecting means 23 are integral, on the one hand, with the tenon 6 and, on the other hand, with the second end 22 of the strapping opposite to the tenon. In particular, the second end 22 of the hoop 20 comprises at its end the male form 23A, while the tenon 6 comprises in the immediate vicinity of the core 24 of the hoop, the female form 23B. The female shape 23B consists of a light, for example in the shape of a substantially T. The male shape 23A has the shape of an arrow, the tip making it possible to facilitate its insertion into the light 23B, and the back of the wings of the arrow constituting means for retaining said male form 23A after introduction through the lumen 23B. The male form 23A preferably has an elastic function, and cooperates according to an attachment in the female form 23B by clipping.

Furthermore, the flattened surface of the core 24 of the frame advantageously allows the bridge 5 to be fixed according to an adjustment adapted in height during manufacture. With reference to FIGS. 4a and 4b, the bridge 5 comprises, in a known manner, at each of its two ends a wafer support lug 50. The bridge 5 comprises at the base of each support lug 50 two jaws 51 and 52 facing each other and arranged in a plane perpendicular or substantially perpendicular to the bridge, the two jaws leaving (in thickness) between them and the bridge, a space 53 for the passage of the core 24 of the frame. The jaws 51 and 52 do not touch each other in order to leave a free zone for the element in relief 25. The holding in position of the bridge 5 on the frame 2 is done by crimping the jaws 51 and 52 against the inner surface 24B of the 'soul. The jaws 51 and 52 constitute means for securing the bridge to the rims of the frame and means for adjusting the height of the bridge. It is thus very easy during manufacture to adjust the height of the bridge in a personalized manner for each user, by crimping the jaws at the desired height.

To prevent the jaws 51 and 52 from exerting pressure forces on the spectacle lenses, each lens (FIG. 4c) comprises, depending on its thickness and opposite each jaw, a notch 32 in which the jaw. These notches are made with usual glass machining tools, and once the height of the bridge has been identified.

The illustrated example of configuration of the frame 2 also makes it easy to attach a trim 7 to the face of the glasses (FIGS. 5a, 5b and 6). The trim 7 has a body with a geometry corresponding to that of the frame 2. The trim is advantageously made of plastic. The trim 7 comprises two strappings, two opposite lugs 73 secured to the two outer sides of the strappings, and a bridge 74 which connects the strappings of the trim. The body of the trim comprises means for fixing by clipping onto the frame 2, in particular it comprises inside (in a hollowed-out manner in the thickness) (FIGS. 6, 7 and 8), a continuous groove 70 at the level of each strapping providing two opposite edges 71 and 72 with an elastic function, a groove 70A at the level of the legs 73, and a groove 70B at the level of the bridge 74. The grooves 70A and 70B at the level of the legs 73 and of the bridge 74 are opposite back of the trim.

The trim 7 is mounted by fitting the frame 2. The core 24 of the frame 2 fits into the groove 70 while the edges 71 and 72 pinch the edges of the wings 24C and 24D of the core 24 (figure 6). The lugs 73 of the trim 7 project perpendicular to the edge of the strapping, such as in L, in order to cooperate, also by clipping, with the tenons 6 of the metal frame. The groove 70A (FIG. 7) with elastic edges of the lugs 73 cooperates by clipping by applying against the front edge 62 (FIG. 2a) of each tenon 6 (the edge 62 of the two wings 60 and 61 of a tenon) and on the face of the frame. Groove 70A of each lug opens into groove 70 of the body of the trim. Similarly, the groove 70B with elastic borders (FIG. 8) of the bridge 74 cooperates with the bridge 5 of the frame 2 by being fixed by clipping. The groove 70B of the bridge 74 of the hubcap opens at its two ends on the groove 70 of the two respective strappings of the hubcap.

The trim 7 is advantageously made of plastic, such as acetate. The trim is made by molding and/or machining.

The example of mount 2 described above is in no way limiting.

According to the invention, the branches 4 of the glasses are removable by clipping, allowing in particular rapid interchangeability and customization of the glasses. According to the invention, the mode of attachment is a magnetic attachment. The fixing is carried out by magnetization.

Figures 2a, 2b and 9a to 9c illustrate this magnetic attachment. Each branch 4 of glasses comprises two magnets 40 and 41 which attract each other, and which sandwich each tenon 6. The two magnets 40 and 41 of a branch form the axis of articulation of the branch to ensure its folding and unfolding with respect to each tenon 6, and therefore to each strapping 20 of the frame.

Each stud 6 has an L-shape. The stud 6 comprises a first wing 60 integral (monolithic with one of the ends 21) of the hoop 20 and a second wing 61 which extends orthogonally the first wing 60 and is intended for the fixing of branch 4 glasses. The first wing 60 starts perpendicular to the web 24 of the hoop 20.

The tenon 6, in particular the second wing 61 of the tenon, is intended to be sandwiched between the two attracting magnets 40 and 41, integral with the branch 4. The two magnets 40 and 41 are brought into contact in the mounted position of the branch 4 in the tenon 6, passing through an orifice 63 arranged in the tenon 6, which guarantees a very effective fixing.

The attachment end of the branch 4 comprises in the body of the branch, in the longitudinal direction of the branch, an oblong notch 42 in which the second wing 61 of the tenon 6 is adapted to engage. This notch allows in particular the folding of the branches 4 relative to the frame.

The notch 42 is delimited by two parallel arms 43 and 44 (terminations of the body of the branch 4) whose distal end forms a cylindrical housing 45, respectively 46, with an axis perpendicular to the longitudinal axis of the branch. Each cylindrical housing 45, 46 respectively retains each magnet 40, 41, and has a volume adapted to the mobility of each magnet in translation in a direction perpendicular to the longitudinal axis of the branch 4. Each branch 4 is capable of pivoting around the magnets to ensure its opening and closing relative to the rest of the frame. Advantageously, a Teflon or silicone coating film covers the magnets opposite the housings, to facilitate the pivoting of the branch when opening and closing it, and to prevent wear. The magnets 40 and 41 are arranged so as to present opposite their opposite pole in order to be attracted against each other. The magnets 40 and 41 are held in their respective housing 45, 46 so that in the rest position, they are in contact with each other (FIGS. 9a and 9c). As for the tenon 6, it has the through hole 63 provided in the second wing 61 of fixing. The orifice 63 is intended to be opposite the cylindrical housings 45 and 46, and consequently the magnets 40 and 41 when the second wing 61 cooperates with the notch 42. In the mounted position of the branch, the magnets 40 and 41 pass through orifice 63 while being in contact with the peripheral wall of the orifice and stuck in the orifice.

The second wing 61 (FIG. 2a) of the tenon 6 has a free end 61A which is thinner than its base connected to the first wing 60 and comprising the orifice 63; this free end 61A forms with its base a recess 61B which serves as a stop by cooperating with the bottom of the notch 42 (FIG. 2b), to limit the opening of the branch. In the mounted position of each branch 4 on the tenon 6 of the frame and in the completely open position of the branch, the free end 61A of the second wing 61 comes over the outer face of the branch 4 and the bottom of the notch 42 abuts against the inner edge of the recess 61B.

Attaching a branch 4 to frame 2 is done as follows:
- the branch 4 is brought to the rear of the tenon 6 in the direction of the axis of the second wing 61 of the tenon, or conversely it is the second wing 61 of the tenon 6 which is brought towards the branch 4 (according to the arrow of Figure 9a), the magnets 40 and 41 of the branch 4 being glued to each other;
- By exerting a thrust force on the wing 61 of the tenon 6 when it comes into abutment against the magnets 40 and 41, this makes it possible to translate/lift the magnets (FIG. 9b).
- Continuing the pressure force, the wing 61 of the tenon engages towards the bottom of the notch 42 and over the branch; when the through hole 63 arrives opposite the two magnets 40 and 41, the force of attraction of the magnets causes them to return to each other, and the passage of their free end through said hole 63 until they reach their contacting (FIG. 9c). The two magnets 40 and 41 are then stuck together and wedged inside the hole 63.

The magnets 40 and 41 also serve as a pivot axis for the temples 4 of the glasses to ensure the folding of the temples relative to the frame 2. Preferably, a protective coating and promoting sliding, such as Teflon, is placed on the contact faces of the magnets 40 and 41, and possibly on the facing face of the two cylindrical housings 45 and 46.

Claims (12)

Spectacle frame (2) comprising a pair of rims (20) connected by a bridge (5), a pair of studs (6) intended for fixing a pair of spectacle arms (4), and a pair of (4) removable each of which has a fixing end with a tenon, characterized in that the pair of branches (4) is fixed magnetically to the pair of tenons (6). Spectacle frame according to Claim 1, characterized in that the fixing end of each arm (4) comprises two magnets (40, 41) which interact by attracting each other, while each tenon (6) has a through hole ( 63) which is crossed by the two magnets (40, 41) attracted against each other. Spectacle frame according to the preceding claim, characterized in that the arms (4) are fixed by clipping, the two magnets (40, 41) being able to be separated for the introduction between them of each arm and the sandwiching of each tenon (6) via the through hole (63). Spectacle frame according to any one of the preceding claims, characterized in that the fixing end of each arm (4) comprises two housings (45, 46) opposite and spaced apart, each housing accommodating a respective magnet (40, 41 ), preferably the magnets (40, 41) comprising a coating or interface film with the interior of the housings, made of Teflon or silicone. Spectacle frame according to the preceding claim, characterized in that the fixing end of each branch (4) comprises between the two housings and along the extension of the branch, an oblong notch (42) which is intended to accommodate a wing fixing (61) of each tenon (6). Spectacle frame according to the preceding claim, characterized in that each pin (6) has a general L-shape, being provided with a first wing (60) integral with a strapping, and with a second wing (61) perpendicular to the first wing (60) and constituting the fixing wing on the arm (4) of the glasses, preferably the second wing (61) comprising a recess (61B) serving as a stop with the bottom of the notch (42 ) of the branch. Spectacle frame according to any one of the preceding claims, characterized in that each strapping (20) comprises an elongated core (24) with a contour adapted to the desired geometry of the strapping, and has two opposite faces, a so-called inner face (24B ) which is intended to face the edge of a lens to be strapped, and which comprises a raised element (25) protruding while extending continuously and perpendicular to the core, in particular each strapping having a profile the cross section of which is T-shaped, the element in relief (25) being intended to cooperate with a groove (31) drawn in the edge of a lens intended to be mounted in each rim. Spectacle frame according to any one of the preceding claims, characterized in that each strapping (20) comprises an interrupted part whose opposite free ends (21, 22) comprise means (23A, 23B) for fixing by mutual cooperation, preferably by clipping, in particular by cooperation of male-female shapes by mutual engagement, such as a rigid and elastic tongue (23A) secured to one of the ends (22) of the strapping able to engage in a slot (23B ) formed in the other end (21). Advantageously, each tenon is integral with each strapping at the level of the interrupted part. Spectacle frame according to any one of the preceding claims, characterized in that the bridge (5) connecting the two strappings (20) comprises means (51, 52) for adjusting its height relative to the strappings, in particular the bridge is a part independent of the hoops and comprises means suitable for fitting onto each hooping and being held fixed, preferably by crimping, at the desired height. Spectacle frame according to any one of the preceding claims, characterized in that it comprises a removable trim (7) fixed by clipping onto the frame (2), in particular the trim comprises at least one groove (70, 70A, 70B) to cooperate with the rims of the frame, the bridge (5) and the tenons (6). Spectacles (1) comprising a frame (2) according to any one of the preceding claims, and a pair of lenses (3). Spectacle arm (4), characterized in that it is capable of being fixed magnetically to a eyeglass frame lug (6) and conforms to an arm according to any one of Claims 2 to 5.