WO1995018985A1

WO1995018985A1 - Rimless spectacles

Info

Publication number: WO1995018985A1
Application number: PCT/FR1995/000025
Authority: WO
Inventors: Yok Konk Diep
Original assignee: Yok Konk Diep
Priority date: 1994-01-10
Filing date: 1995-01-09
Publication date: 1995-07-13
Also published as: FR2723648B3; FR2723648A3; AU1458695A

Abstract

The present invention relates to rimless spectacles having substantially rigid means for attaching the frame to the lenses. According to the invention, the lenses (2a, 2b) are drilled to provide holes through which pass the free ends of bent rods which form the parts (17a, 17b, 15) of the frame. In particular, hinging of the arm (17a) to the lens (2a) is provided by a winding (34) at the end of the rod (3) forming the arm (17a), and a folded rod is placed in the core of the winding to produce the fixed part (4) of the hinge, its free ends (30, 46) being inserted in the holes (32, 40). Application to spectacles.

Description

The subject of the present invention is rimless glasses, the lenses of which are connected to the frame by a fixing means comprising holes. TECHNICAL AREA :

It finds application for the production of vision correction glasses, protective glasses, sun protection in particular, etc. PRIOR ART: In the state of the art, we have already proposed glasses without rim. In particular, in document EP-A-0 546 589, rimless glasses have been described, the lenses of which are fixed to a frame by elastically deformable hooks which pass through housings formed in the glass, in a zone marginal from that -this. Each housing receives an elastic hook which is inserted therein by force, and which deforms so as to remain held in the housing by elastic deformation.

In practice, such a housing is oblong in shape and each hook has a part parallel to the plane of the glass and two perpendicular parts, obtained by folding the hook, and which bear on the edges of the oblong housing.

Such a means of fixing the frame to the glass is too easily removable. In particular, if the glasses fall on a hard surface, it sometimes happens that the glasses detach from the frame because the impact causes the hooks which are expelled from the housings to bend. In addition, the material of the glasses is either too hard if it is made of silica glass, or too soft if it is based on plastics, for an elastic hook to exert a force on the housing.

In document EP-A2- 0 361 547, a pair of rimless glasses has been described, one central part and two lateral parts of which are mounted directly on the glasses by rivets. But the lateral parts, which serve as branches for the frame, and the middle part, which serves as a nose pad holder for the frame, are connected to the area of fixing to the glass by a plate which covers this fixing zone, thus limiting the viewing angle. In addition, this technique is not adaptable to the frame technique of the invention, because, in the previous document, the frame is made of a thick material, such as molded plastic.

However, a need exists in terms of glasses to have a simple, inexpensive, and formable means no longer only in the factory, but directly at the eyeglass craftsman or at the optician who realizes on demand the frame for the account. of the patient.

The invention remedies these drawbacks of the state of the art.

PRESENTATION OF THE INVENTION:

Indeed, the invention relates to rimless glasses comprising two lenses and a frame produced by relatively rigid rods.

The invention is characterized in particular in that the frame has branches and a nose pad holder part, which are mounted on holes which pass through a marginal zone of the glass. The ends of the branches and of the nosepiece holder piece are elongated in shape and penetrate into the holes and are joined therein so as to constitute a means of fixing the frame to the lenses.

According to one aspect of the present invention, the frame comprises at least one part produced by a rod made of titanium, gold, silver or iron.

According to another aspect of the invention, the means of fixing the frame to the lenses comprises at least one foot returning into a hole drilled on at least one lens, and which is held by a fixing element, in particular thanks to at least one nut engaged on a threaded part of the foot, or by an adhesive glue, the foot being able to be produced by a free end of a rod of the frame, or by a part comprising a head connected to said free end of the rod and a body crossing the said hole drilled on the glass. The same fixing means can be used for the nosepiece holder piece and for the ends of the branches.

According to another aspect of the present invention, the glasses are easily removable. To do this, simply loosen the nuts of the fixing means and remove the parts of the frame.

According to another aspect of the present invention, the mobility of the branches is facilitated by the fact that the end of the branch comprises a hinge. In a preferred embodiment, such a hinge is obtained by shaping the end of the branch into a coil-shaped winding, which serves as a movable part of the hinge, said winding through which passes a bent rod, which serves as part fixed to the hinge, connecting to a marginal zone of the glass by the fixing means.

According to another aspect of the invention, the end of the branch intended to attach to the glass has a stop which is integral with it and which abuts on the edge of the glass, in particular on the edge, or on a surface of the glass. in the marginal zone, or on a determined folding of the folded rod which connects to a corresponding marginal zone of the lens by the fixing means, so as to limit the articulation movement of the branch in the frame. In a preferred embodiment, the stop is produced by a folded loop formed on the rod at the end of the branch, and executed at the same time as the winding serving as a fixed part of the hinge.

According to one aspect of the present invention, the end of the branch remote from the glass is folded in the shape of an arc and receives a coating by a sleeve made of a flexible material so as to come to surround the ear without injuring it.

According to another aspect of the invention, the nosepiece holder piece is formed in an arc and is folded at its two ends beyond the area of attachment to the glasses so as to produce nasal support loops. According to one aspect of the invention, the nasal support loop is shaped around a plate in the shape of a ball-shaped screw which allows more comfortable wearing of the glasses. According to another aspect of the invention, the ends of the rod which penetrate into the holes of the glass pass from the inner face of the glass, the fixing elements being arranged on the outer surface of the glass.

According to another aspect of the invention, the ends of the rod which penetrate into the holes of the glass pass from the external face of the glass, the fixing elements being arranged on the internal surface of the glass.

SUMMARY DESCRIPTION OF THE DRAWINGS:

Other characteristics and advantages of the present invention will be better understood with the aid of the description and the appended figures which are: FIG. 1: a partial top view of a diagram of a first embodiment of spectacles without edge according to the invention; Figure 2: a front view, on the side of the user of the glasses, of another embodiment of rimless glasses according to the invention; Figure 3: a diagram of a detail of a frame according to another embodiment of the frame of Figure 2; Figure 4: a partial sectional view of another embodiment of the invention; Figure 5: a partial front view of another embodiment of rimless glasses according to the invention; Figure 6: a sectional view of another fixing means for the frame; Figure 7: a diagram of another embodiment using the embodiment of Figure 6; Figures 8a and 8b: a diagram of an embodiment of part of the invention and part of a front view of glasses thus equipped; Figures 9a and 9b: a diagram of an embodiment of another part of the invention and part of a top view of glasses thus equipped; Figure 10: another embodiment of spectacle frame according to the invention.

DESCRIPTION OF EMBODIMENTS

In the drawings, the glasses comprise two left glasses 2a and right 2b, and a frame constituted by left branches 17a and right 17b and a nosepiece holder piece 15, which serves as a bridge between the two glasses 2a and 2b.

The three main parts of the frame, namely, the arms 17a and 17b and the bridge 15, are produced by bending substantially linear rods of a relatively rigid material. We have made frames in iron, titanium, silver and gold with good results.

In Figure 1, there is shown a partial top view of a diagram of a first embodiment of rimless glasses according to the invention. The glass 2a on the left has been shown partially and in section. Its inner face i in the drawing is directed downwards and its outer face e is directed towards the top of the drawing.

According to the invention, the glass 2a is pierced with a hole 30 in its marginal zone, here its left lateral marginal zone. The frame in particular comprises a left arm 17a, here shown partially in its position, frame ready to be installed on the face of the user.

The branch 17a has a tip 3 which is shaped as a hinge, according to a coil-shaped winding 34, produced directly on the rod constituting the branch 17a proper. The winding 34, which produces the movable part of the hinge 3, is of substantially helical shape, of central axis perpendicular to the plane of Figure 1 and therefore substantially parallel to the plane of the glass 2a. The helical winding 34 provides a central well inside which a rod has been previously introduced which, once suitably folded according to the teachings of the present invention, constitutes the fixed part 4 of the hinge.

When the rod for making the fixed part 4 of the hinge comes out of the well of the winding 34, it undergoes a first folding so as to reach the outer surface e of the glass 2a. Then, by touching with it, a new folding produces a part 33 substantially in the outer surface e of the glass 2a and in line with the hole 30, drilled in the glass 2a, a last folding produces a section 32 which opens out on the other side of the interior surface i of the glass 2a.

The free end of section 32 of the fixed part 4 of the hinge constitutes a connecting element or foot, the end of which is provided with a hooking means (not visible in FIG. 1) around which one can pass a cap 31 which makes it possible to secure the branch 17a with its hinge 3, 4 to the glass 2a.

In practice, although this is not visible, at least one second hole such as hole 30 must be drilled in the glass 2a to allow the passage of the other end (low relative to the description of Figure 1) free of the rod which bent, made it possible to constitute the fixed part 4 of the hinge 3, 4. In this way, the glass 2a and the branch 17a keep a constant orientation without play.

When the user manipulates the branch 17a, it can follow an articulation movement according to the angle identified by the arrow 37. The user can thus close his glasses to store them in a case for example.

In this articulation movement, the so-called movable part 3 of the hinge 3, 4 rotates around the section of the so-called fixed part 4 of the hinge, which is located inside the well formed in the winding 34. The branch 17a then takes the position marked in dashes and can rotate as is usual until it comes into abutment on the other glass 2b, not shown in FIG. 1, so as to present a minimal bulk.

In the reverse movement of opening of the frame, it is desirable, to produce an effect of maintaining the glasses on the face of the user, to provide a blocking of the articulation movement 37, in the opposite direction to the arrow 37. By such a blocking, the branches 17a and 17b are slightly deformed because of the width of the head of the user, and they exert a slight effort of holding the glasses on the head thereof.

To allow such a blocking effect, it is provided in the invention to provide the movable part 3 of the hinge 3, 4 with a stop 35 which advances beyond the hinge itself so as to come into abutment on the edge lenses when the frame is fully open.

As shown in FIG. 1, during its articulation movement 37, the branch 17a rotates, and at the same time, the stop 35 follows the movement according to arrow 36. When the branches 17a and 17b are fully open, the stopper

35 comes to bear on the edge of the corresponding glass 2a or 2b.

According to the embodiment of the folding of the fixed part 4 of the hinge 3, 4, it is possible:

- Or to directly press on the edge or on one of the surfaces in the marginal fixing zone, of the glass 2a, the folding of the fixed part passing it over the stop 35; or else to press on a suitably folded area of the fixed part 4 so as not to come to exert any force directly on the glass 2a, but only on areas of the fixed part 4.

In Figure 2, there is shown a front view, on the side of the user of the glasses, of another embodiment of rimless glasses according to the invention. In Figure 2, there is completely shown the rimless glasses of the invention, but it has not yet installed the right arm 17b of the frame so as not to complicate the drawing.

The frame is shown in the closed position with the single left arm 17a. The glasses 2a on the left and 2b on the right are connected to each other by the gateway 15.

The gateway 15 is executed according to the invention by folding a rod described above. We will not describe the means fixing the frame only for the left half of the glasses, it being understood that the right half would be mounted in an identical or similar manner.

The gateway 15 has a central part which passes above the nose of the user and which is in the form of an arc. This central part continues with a substantially rectilinear part, the base of which is in the form of a loop 53 before leaving towards the side in the direction of the right marginal zone of the left lens 2a. The attachment section of the gangway on the glass 2a is constituted by a part 52 which is initially substantially rectilinear which first penetrates into a foot 49. The foot 49 is a substantially cylindrical part comprising a head disposed on the side of the surface outside e of the glass 2a, and of a body which is integral with it, which penetrates into a hole in the right marginal zone of the left glass 2a. The foot 49 is made of plastic and the rod 52 penetrates into a bore in the head and comes into abutment between a support washer 48, which protects the outer surface e of the glass from direct contact with the rod 52, and a nut not shown which is engaged on a thread of the leg 49, on the side of the inner surface i of the glass.

The section 52 of the rod constituting the gateway 15 continues with a folding 51 which is touched on the external surface of the glass 2a and ends at its free end through a hole 50. The free end of the section 51 is itself finished, like the end 32 of the fixed part

4 of the branch of Figure 1 by a cap or a fixing nut, arranged on the side of the inner surface i of the glass.

The provision of two fixing points of the left end 48 - 53 of the left half of the gangway 15 on the left lens 2a makes it possible to limit the clearances and to produce a firm hold of the frame on the lenses.

In Figure 2, there is also shown the left branch 17a in a closed position, which allows to represent the hinge 3, 4 in another view. The hinge 3, 4 is constituted by a winding of the end of the branch 17a proper. The rod constituting the branch 17a is first wound upwards in FIG. 2 according to contiguous helical turns 43 and following. Then, the rod comes out in a section 42, follows a first folding, to form a section 44 which is substantially perpendicular thereto, then a second folding so as to produce a section 45 of the rod which returns to the winding 23 proper. The rod is then wound on the same axis as the first half previously described according to contiguous upward turns in FIG. 2. Then, the supernumerary end of the rod is leveled to prevent a point being produced on the frame.

There was thus produced in a single operation the winding 34 and the stop 35 which is here constituted by the loop 42, 44 and 45.

The fixed part 4 of the hinge 4 is formed, as has already been described, by introducing a rod into the well of the helical winding 34. Then, by bending its two free ends on either side of winding 34, the fixed part 4 is produced according to the teaching for example of FIG. 1.

In one embodiment, the winding 34 is shaped around the rod which will later constitute the fixed part 4, before it is folded. In this way, the dimensions of the winding well and the diameter of the rod are perfectly adapted.

In another embodiment, the winding 34 is produced on a mandrel which is subsequently removed from the well of the winding 34 to accommodate the rod which will later constitute the fixed part 4, before its folding. In this way, the dimensions of the mandrel which forms the winding well and the diameter of the rod must be perfectly adapted. Referring again to Figure 2, in its central part which relates to the gateway 15, the loop 53 allows for a simple nasal support. To improve the comfort of the user, nasal support plates were produced which are introduced into the loops 53.

In FIG. 2, the free end of the branch 17a on the left has a shape in an arc of a circle so as to allow the fitting of the frame on the ears of the user. The stem of the branch 17a and / or 17b may be covered with a sleeve 18 notably preventing direct contact of the skin with the material of the stem. The sleeve 18 is terminated in one embodiment by a ball 19 making it possible to prevent the formation of a point which could injure the user. The sleeve 18 and / or the ball 19 can be made of a hypoallergenic material. Soft silicone plastic is used.

In FIG. 3, there is shown an embodiment of a leg 49, here marked 64, intended for mounting the bridge of the frame of FIG. 2.

The gateway 15 is seen from the side and the glass 2a on the left is in section taken in a plane containing the axes of the two holes visible in FIG. 2, in the right marginal zone of the glass on the left. The outer surface e of the glass is directed to the left of FIG. 3.

The portion 54 for connection to the arched shape which characterizes the gangway 15 carries at its lower end a loop 53 which starts again in a section 52 which passes from the inner side (inner side i) of the left glass from the outer side (outer side e ) of the left lens passing through the space provided between the user's nose (not shown) and the edge of the lens 2a.

The rod which constitutes the gateway 15, or rather its half on the left, then crosses a hole 63 which crosses the head 62 of the foot 49. The latter therefore comprises a head 62 and a body 49 proper. The foot protrudes from the two surfaces e and i of the glass, and on the side of the exterior surface e, the foot is blocked by the section of the bridge rod passing through the hole 63, and on the side of the interior surface i, by a nut 61 which is engaged on a thread, not shown, made on the body of the foot 49. In FIG. 3, there is no shown the washer 48 of Figure 2, washer which would be placed on the outer surface e of the glass 2a.

Section 51 of the rod constituting the left half of the gateway 15, supported on the outer surface e of the glass 2a and then passes through a hole already described with the aid of FIG. 2, to lead to the inner surface i of the glass 2a on which the rod is finally blocked by a glued cap 60 or a nut 60 engaged on a thread not shown from the free end of the rod. The extra length of the free end is cut flush with the cap or nut to avoid spikes in the frame.

The cap or nut 60 can be anchored in the material of the rod, for example by notches machined over the corresponding length of the rod, or even by a thread. One can also make permanent the mounting of the frame by the use of an adhesive adhesive.

It is noted that the foot 49, 62 can also be used for the second hole to serve as a second anchoring element by means of fixing of the invention, at the free end of the rod.

Note that the foot 49, 62 described here for the bridge 15 can be perfectly adapted to the fixing of the so-called fixed part 4 of the hinge 3, 4 of the branches 17a and 17b. In the loop 53 of the bridge 15, it is possible, to improve the comfort of the user, to have a nose pad 64, consisting of two heads 65 and 67, here of substantially hemispherical shapes, connected together by a cylindrical body 66. The hemispherical head 65 is of a diameter much greater than the inside diameter of the loop, and is made of a material admitting contact with the side of the nose of the user (not shown).

The hemispherical head 67 has a diameter slightly greater than the inside diameter of the loop 53. However, since it is made of a deformable material, it can be inserted therein by force and it is held there in a removable manner. as long as there is no traction along the axis 68 of the body 66 to dislodge it from the loop 53.

Such an operation is in particular carried out when the user wishes to change or clean the wafer attacked by sweat.

When the plate 64 is in place on the loop 53 in FIG. 3, it occupies the space materialized by the dashed circle 69.

In Figure 4, there is shown a partial sectional view of another embodiment of the invention. In Figure 4, there is shown a top view in partial section of the right lens 2b of the rimless glasses of the invention, the outer face e directed upwards in the figure and the inner face i, directed downwards of the figure. In this embodiment, the fixing means is substantially reversed compared to the previous modes. Indeed, the tip 3 of the right branch 17b shown in Figure 4, is disposed inside the glasses and its stop 75 comes directly into contact with the edge of the glass 2b, when the articulation movement is at the end of the opening of the frame.

The section of Figure 4 is such that only the lower hole of the glass 2b is visible. We introduced the free end 70 of the fixed part 4 of the hinge 3, 4, in this figure taken on the right glass 2b. The free end 70 is secured to the glass 2b by the outer surface e thanks to a cap 71, which can be removable (in the case of a nut) or permanent (in the case of a glued cap).

The folded rod of the fixed part 4 of the hinge 3, 4 returns substantially at right angles to its movable part 3 and penetrates from below into the well formed in the winding 74 produced as has already been described with the rod from the end of the branch, here on the right 17b. The folded rod of the fixed part 4 rises in the well according to a rectilinear part, seen here in section 73, and emerges beyond the section of Figure 4, which explains that the second, upper half of the fixed part does not is not shown in Figure 4. This second half of the fixed part 4 is strictly identical to the first half previously described 70 - 73, except that it enters a second hole, placed above the first hole on the glass 2b. In Figure 5, there is shown another embodiment of the present invention in which the stop of the movable part of the hinge bears on the outer surface of the glass and in which the two fixing holes of the fixed part of the hinge on the lens is spaced from each other to improve the balance of the frame.

The right lens 2b is seen from the front, the user wearing the glasses having to stand behind the plane of FIG. 5.

In this embodiment of the invention, the winding 84 produced with the rod at the end of the right branch 17b, not visible in the open position which has been shown in this FIG. 5, is placed either directly on the edge glass 2b, or substantially in the interior surface i of glass 2b. The stop 80 is produced as in the other embodiments, starting from the winding 84, which serves as a movable part of the hinge of the frame, but it is rotated by 90 ° relative to the other modes previously described, so to come into abutment, no longer on the edge of the glass, nor on a suitable folded area of the fixed part of the hinge, but directly on the outer surface e of the glass 2b, still in the marginal area of the fixing means on the glass .

On the other hand, in this embodiment, the two holes of the fixing means of the invention are no longer arranged in the immediate vicinity of the outlets of the winding 84, but one of them is arranged as far apart as possible the other. Therefore, the rod constituting the fixed part 81, 82, 83, 85 and 86 of the hinge is elongated and it is folded several times so as not to enter the viewing angle of the user. Except for this detail, its method of attachment incorporates the same elements as above. In particular, we have not shown the caps which are. in the embodiment of Figure 5, arranged on the outer surface e of the glass 2b. Leaving the inner surface i of the glass 2b, the rod is folded in a section 82 to go along the upper edge of the glass 2b, then is folded again in a section 83 to pass through the winding 84. Coming out of the well of the winding 84, the rod serving as a fixed part of the hinge is folded again in a section 85 to return from the inner surface i to the outer surface e of the glass 2b through a hole 86. In Figure 6, there is shown a partial sectional view, schematic, side of rimless glasses according to the invention. The left lens 2a is partially seen in section, and the only bent rod 100 which is used as a fixed part to the hinge of the frame, has been installed in the holes of the fixing means, it being understood that the method of fixing which will be described could also be applied to one end of the folded rod of the gangway 15.

Two series of holes are drilled on the glass 2a, respectively the series of holes 90 to 91, and the series of holes 94 to 95. Only the holes 91 and 94 are relatively large diameters, the others being of sufficient diameter to the passage of the sections of the folded rod 100.

Starting from the central zone 100 of the folded rod, a first folding is carried out which leads to a section 100 which crosses the end 92 of the external surface e towards the internal surface i. Then, a second folding produces a section 102 which passes through a hole 104 drilled in the head of a foot 96, which is installed in the hole of larger diameter 91. The body of this foot 96 opens onto the interior surface i of the glass. 2a and is joined to it as seen previously by a cap or nut 98.

The section 102 of the folded rod is folded a third time so as to produce a section 103 which passes through the bore 90 from the outer surface e of the glass 2a towards its inner surface i. The free end of the folded rod can be leveled (case shown in Figure 6) or provided with a cap or nut as a fastener as described above.

The second half of the folded rod 100, which is identical or similar to the first half which has just been described, will not be described further.

However, it should be noted that the branch 17a of the frame has not been shown and, in particular, the winding produced at its free end on the side of the lens 2a has not been shown either. However, it should be understood that the winding was installed on the central section 100 of the folded rod, shown alone in FIG. 6, before the latter is folded and installed in the holes and feet described above.

In Figure 7, which can be read with Figure 6, there is shown the glass 2a, partially, from the front and seen from its outer surface e. The two series of holes 90 to 92 and 93 to 95 have been shown so as to follow as much as possible the edge of the lens 2a so as to reduce the grip of the frame in the viewing angle of the user, on the one hand, and on the other hand, to separate the fixing holes as much as possible so as to better balance the frame.

In dashes, there is shown the place of the fixed part of the hinge of the left branch 17a which has not been shown to simplify the drawing. In Figures 8a and 8b, there is shown a detail of an embodiment of glasses according to the invention. The part serving as a gateway and a holder for the plates is constituted as above by a folded metal wire but the two free ends of which each carry a plate inserted directly by a tapped hole placed on the threaded end or by gluing. The blister may affect the shape of a ball made of an elastic material such as silicone.

Figure 8a is a partial sectional view, right view of the left glass 2a. The plate holder assembly 200 mainly comprises the folded rod 201 and the foot 202 as well as the plate itself 203. Symmetrically on the right glass, visible in FIG. 8b, there is the second half of the folded wire and the right foot and plate.

The plate 203 is mounted at a first end of the folded wire 201. The wire has a first fold 204 which passes along the edge of the glass, inside between the two glasses and resting on this edge. Then, it affects a second folding 205 which brings it back in the plane of the interior surface of the glass 2a. It then affects a loop 205 which surrounds the cylindrical part of the foot 202 and it passes between the head 206 and two support rings respectively 207 and 208. When it has almost entirely surrounded the cylindrical body of the foot, on the inside of the glasses, the folded wire folds again 209 which returns it towards the edge or the edge of the glass and resting on it and finally, the section of FIG. 8a is stopped at the place where the link loop 211 begins.

All of these elements are shown in FIG. 8b which is a front view, seen from the side of the wearer of the glasses, but without the feet fixing screws being installed. We have not detailed more Figure 8b which shows the reference numbers of the elements of Figure 8a and the symmetrical half of the plate holder assembly, for the right side.

In Figures 9a and 9b, there is shown another embodiment of a spectacle frame according to the invention. In this embodiment, the coil-shaped part of the hinge of the invention is formed on the fixed part of the frame, that is to say, that linked to the glass by the holes.

In FIG. 9a, the telescope branch 220 affects an elbow 221 which replaces the rod above the coil 222. The free end 223 of the rod constituting the branch 220 penetrates into the well made inside the coil and spring on its lower opening, on which it is immobilized in translation by a screw 224 whose bore is suitably tapped and is engaged on a thread formed on the surface of the free end. In another embodiment, the screw 224 is replaced by a cap fixed to the free end by deformation, by gluing or by welding.

The coil 222 is formed substantially in the middle of the fixed part of the frame, the two free ends 225 and 226 of which are bent so as to impart rigidity to the assembly, in particular by coming to bear on the edge or the edge of the glass. . Note the bends or bends 227, 228 and 229, 230. The free ends 226 and 225 of the fixed part of the hinge penetrate through the holes 230 and 231 drilled through the spectacle lens. They are stopped by screws or caps 232 and 234 as has already been described.

In addition, the coil can be completed by a loop 235, on which the branch 220 abuts in its angular movement to open the glasses, as has already been described.

In Figure 9b, there is shown a partial top view of the right part of the frame, in the open branch position. This figure is not further described in which the repeated elements of FIG. 9a are identified by the same reference numbers. However, it can be seen that the two holes 231 and 233 are not drilled at the same levels.

In Figure 10, there is shown another embodiment of glasses according to the invention. There is shown in partial section a left lens 307 seen from the side of the spectacle wearer, with a left arm 300 produced by a folded wire, and a fixed hinge part 303 - 306.

The movable part of the hinge comprises a first coil, here constituted by a single turn 301 and whose free end 302 ends under the folded wire constituting the branch 300 proper.

The fixed part of the hinge comprises a second coil, here constituted by a single coil 305 and whose free end 306 ends in a straight part

304 of the folded rod constituting the fixed part of the hinge, located on the glass 307. The rectilinear part 304 makes it possible to pass along the edge of the glass 307, on the front face of the glass 307 (behind the figure) and continues through a perpendicular part 303 up to the level of a bore 313, which it crosses through a third part straight 312. The free end of the fixed part, protruding on the rear face (in front of the drawing plane) is fixed by a nut 314 tightened on a thread of the cylindrical end of the folded rod which constitutes the fixed part of the hinge.

Furthermore, the two coils, respectively the first coil consisting of the coil 301 and the second coil consisting of the coil 305, are associated along their common central axis by a threaded screw having a head 309, a cylindrical body 310 of diameter adapted to the diameter of the turns 301 and 305, and having a threaded end 311. Once engaged in the opening of the turns, the screw is attached to the hinge thus formed by a nut 308.

The branch of the frame has two folds so as to present a vertical part 309 intended to constitute a stop which presses on the straight part 304 of the fixed part of the hinge when the frame is in its most open position.

Furthermore, the fixed part can in one embodiment be mounted on a bore 322 of the glass by means of a foot consisting of a cylindrical head 325 and a cylindrical body 321 of smaller diameter than that of the cylindrical head 325. A soft plastic seal 324 is interposed between the front face of the glass 307 and the rear face of the head 325 intended to bear on the latter. The body 321 of the foot has a threaded end on which engages a nut 320 for fixing. The rectilinear part 303, in the plane substantially occupied by the surface of the lens 307, passes through a bore 326 in the head 325 of the foot and the tightening of the nut 320 ensures the connection of the fixed part of the hinge to the frame.

In the embodiment of Figure 10, we combined the two fastening means by threaded end of the folded rod forming the fixed part and by foot inserted into a hole in the glass.

It can be seen that the various means of the invention are widely combinable with each other both at the level of the fastening elements such as nuts or caps, and in the relative arrangement of the holes and rods which constitute the frame, and in particular with respect to the exterior and interior surfaces of each glass. Similarly, it is possible to combine, according to the desired objectives, the hinge stop on an external surface of the glass, on its edge or on the fixed part of the hinge.

Claims

1. Rimless glasses comprising two lenses (2a, 2b) and a frame (15 - 17a, 17b) produced by relatively rigid rods, characterized in particular in that the arms and a piece of nose pad holder (15) making up the frame, are mounted on boreholes which pass through their ends of elongate shapes through their marginal zone of the glass and penetrate into the boreholes and are joined therein so as to constitute a means of fixing the frame to the glasses, and in that the frame comprises at least a part produced by a titanium, gold, silver or iron rod.

2. Spectacles according to claim 1, characterized in that the means for fixing the frame to the lenses comprises at least one foot (32; 64) entering a hole (30) drilled on at least one lens, and which is held by a fixing element, in particular thanks to at least one nut (31) engaged on threaded parts of the foot, or by an adhesive glue, the foot being able to be produced by a free end of a rod of the frame, or by a piece comprising a head connected to said free end of the rod and a body passing through said hole drilled on the glass.

3. Spectacles according to claim 1, characterized in that, to allow an articulation movement of the branches, the end of each branch (17a, 17b) comprises a hinge (3, 4), comprising a movable part (3) constituted at the end of the branch, and a fixed part (4) whose free ends (32, 47) penetrate into the holes (30, 40) of the fixing means.

4. Spectacles according to claim 3, characterized in that the movable part (3) of the hinge is obtained by shaping the end of the branch (17a, 17b) into a winding (34) in the form of a coil through which passes a bent rod, serving as a fixed part (4) of the hinge, which connects to a corresponding marginal zone of the glass by the fixing means.

5. Spectacles according to claim 4, characterized in that the end of the branch intended to attach to the glass comprises a stop (35) which is integral with it and which abuts on the edge of the glass, in particular on the edge, or on a surface of the glass in the marginal zone, or on a determined folding of the folded rod which connects to a corresponding marginal zone of the lens by the fixing means, so as to limit the articulation movement of the branch in the frame.

6. Spectacles according to one of claims 1 to 5, characterized in that the nosepiece holder piece (15) is formed in an arc and is folded at its two ends beyond the area of attachment to the glasses so as to produce a nasal support loop (53).

7. Spectacles according to claim 6, ^' characterized in that the nasal support loop (53) is shaped around a plate (64) in the form of a head screw (65) in the form of a ball which allows more wear comfortable glasses.

8. Spectacles according to claim 2, characterized in that the fixing means comprises, on at least part of the frame produced by a rod, a loop (205) which surrounds the cylindrical part of the foot (202) installed in a bore glass.

9. Spectacles according to claim 1, characterized in that the part of the frame produced by a rod (201) has at least one folding (204) which passes along the edge of the glass so as to stiffen the mounting.

10. Spectacles according to claim 1, characterized in that they comprise at least one branch (220) the end (223) of which passes through a hinge constituted by a coil (222) produced on a fixed part obtained by folding a wire whose free ends are engaged in holes (230, 231) of the glass on the edge of which the fixed part is mounted, the free end of the rod of the fixed part being secured to the glass by a nut or cap (232, 234).

11. Spectacles according to claim 10, characterized in that the coil (222) is completed by a loop (235), on which the branch (220) abuts in its angular movement to open the glasses.

12. Spectacles according to claim 1, characterized in that, to allow an articulation movement of the branches, the end of each branch (300) comprises a hinge (301, 305, 309, 308), comprising a movable part (301 ) formed at the end of the branch, and a fixed part (305), the branch (300) carries at its end a first coil constituted by at least one turn (301) which is associated by a screw (309 - 311) tightened by a nut (308) to a second coil constituted by at least one turn (305), constituted at one end of a fixed part (303, 304, 312).

13. Spectacles according to claim 12, characterized in that the means of fixing the frame, for each branch comprises one end of said fixed part installed in a bore (313) of the glass (307), and / or a foot comprising a head (325) pierced with a hole (326) through which a part (303) of the fixed part passes, the head being associated with a body (321) installed in a hole (322) in the glass (307), a seal (324) made of soft plastic which can be interposed between the surface of the glass and the face of the head (325), a nut (314, 320) making it possible to secure said end and / or said foot to the glass.