FR3110980A1 - Fixing post for mounting an eyeglass arm to a main frame of an eyeglass frame - Google Patents

Abstract

A lug (4) for fixing a spectacle arm to a main frame of a spectacle frame, said main frame comprising two openings capable of receiving two lenses respectively, each opening comprising an inner peripheral edge capable of cooperating with an outer peripheral of a lens, the main frame comprising at least a first housing, emerging in the inner peripheral edge of an opening, and at least a second housing associated with the first housing of the said opening, the fixing pin (4) comprising at least a first lug (41) and a second lug (42) respectively configured to be mounted in the first housing and the second housing of the main frame, the first lug (41) being configured to be locked in position in the first housing when mounting a glass in its opening. Figure of the abstract: Figure 5

Description

Fixing pin for mounting a spectacle arm to a main frame of a spectacle frame

The present invention relates to the field of pairs and frames of spectacles.

Conventionally, with reference to FIG. 1, a pair of PAA glasses consists of a spectacle frame 101 in which are mounted V solar, sight or fancy lenses. Spectacle frame 101 comprises a main frame 102, adapted to receive said V lenses, and two branches BAA mounted at the lateral ends of said main frame 102. Each branch BAA is connected to main frame 102 via a hinge 106 which mainly makes it possible to fold/unfold the branch BAA with respect to the main frame 102.

In practice, the main frame 102 comprises, at each lateral end, a fixing pin 121 for mounting a branch BAA. The hinge 106 connects on the one hand the fixing pin 121 and on the other hand the branch BAA. The fixing stud 121 is welded in the factory to the main frame 102 or made from material from the main frame 102. Thus, when creating a new frame 101, the shape, size, position and orientation of the stud fixing 121 must be perfectly defined. Such constraints prohibit manufacturing a mount 101 in a modular manner, which has a drawback.

In practice, a hinge 106 comprises two knuckles in known manner which are hinged together. A knuckle is welded to branch BAA and the other knuckle is welded to fixing pin 121.

When you want to change a BAA branch, it is necessary to dismantle the hinge 106, which is complex given that the latter is not easily accessible. In addition, the new BAA branch must adapt to the existing 121 fixing post, which greatly limits the number of compatible BAA branches.

To change the aesthetic appearance of an ABA branch, it has been proposed to use covers or caps to cover the outer surface of an existing branch. Such solutions bring a low-quality result and cannot be retained.

In order to eliminate this drawback, it has been proposed in the prior art by the patent application FR3037154A1 to form a housing in the inner peripheral opening of the main frame which must receive a glass. The tenon of the branch is mounted in this housing and locked in position by the assembly of the glass. Such a solution is interesting since it allows easy replacement of the branch. In addition, the tenon of the branch is blocked directly during assembly of the glass and it is not necessary to disassemble the hinge as in the prior art.

In practice, mounting the branch only between the glass and the main frame is not very robust. Indeed, during its use or storage, a branch is subjected to numerous torsion and rotation forces which weaken its assembly. Accidental tearing of the branch or the glass is therefore possible. In addition, the assembly can be complicated since the branch must be maintained by the optician in its housing during the assembly of the lens.

Another drawback is that it is necessary to provide shapes of branches having tenons which are suitable for all shapes of lenses, in particular their curvature. Indeed, depending on the position of the housing on the peripheral edge, it is necessary to adapt the shape of the post so that the branch can be aligned with the temples of the user. In other words, the interchangeability of branches is not optimal.

The object of the invention is therefore to remedy at least some of these drawbacks by proposing a new branch of spectacles which can be mounted in a removable and robust manner on any main frame.

PRESENTATION OF THE INVENTION

The invention relates to a stud for fixing a spectacle arm to a main frame of a spectacle frame, said main frame comprising two openings capable of receiving two lenses respectively, each opening comprising an inner peripheral edge capable of cooperating with a outer peripheral edge of a lens, the main frame comprising at least a first housing, opening into the inner peripheral edge of an opening, and at least one second housing associated with the first housing of said opening, the fixing pin comprising at least a first lug and a second lug respectively configured to be mounted in the first housing and the second housing of the main frame, the first lug being configured to be locked in position in the first housing when mounting a lens in its opening.

Advantageously, the use of such a fixing pin makes it possible to increase the robustness of a branch held by the edge of a lens. The risk of accidental uprooting is therefore limited. In addition, the use of two lugs makes it possible to guarantee horizontal alignment of the temple and, consequently, precise vertical positioning of the hinge axis of the temple, which is very advantageous.

Preferably, the fixing stud comprises a support element comprising a rear face on which is fixed at least one connecting member configured to participate in the formation of a hinge of the branch. The integration of a connecting member to form the hinge advantageously makes it possible to participate in the precise vertical positioning of the axis of the temple hinge.

Preferably again, the support element comprises a front face, opposite the rear face, on which the first lug and the second lug are fixed together. Thus, the fixing pin integrates all functions in a single piece.

Preferably, the first lug and the second lug extend in parallel. Thus, they can be inserted directly by translation into the main frame. Preferably, the lugs extend orthogonally to a plane defined by the support element.

Preferably, the distance between the lugs is between 3 mm and 10 mm. This distance corresponds to the distance between their parallel axes.

Preferably, the first lug is mounted in an articulated manner. Preferably, the first lug is mounted in an articulated manner to the support element, preferably along an axis orthogonal to a plane defined by the main frame or the support element. This advantageously makes it possible to modify the inclination of the first lug so that it extends, in the plane of the lens, tangentially to said lens so as to allow optimum assembly. In other words, the fixing pin makes it possible, thanks to its articulation, to adapt to several shapes of glass. The fixing pin thus has multiple applications for main frames of different shapes.

According to a preferred aspect, the first lug comprises an inner face facing the opening, the inner face being configured to receive the glass by complementarity of shapes in order to allow the blocking of the first lug.

Preferably, the second lug has a circular section so as to allow it to pivot in the second housing. Thus, this compensates for any alignment play between the housings.

Preferably, the connecting member is mounted by interlocking with the support element. Preferably, the support element comprises at least one housing for receiving the connecting member by assembly.

• un tenon de fixation tel que présenté précédemment, destiné à être monté dans un cadre principal de la monture de lunettes, et
• un corps principal, destiné à venir en appui sur les oreilles d’un utilisateur, le tenon de fixation et le corps principal étant reliés ensemble, de préférence, par une charnière.

The invention also relates to a spectacle arm for a spectacle frame comprising:

• a fixing pin as presented above, intended to be mounted in a main frame of the spectacle frame, and
• a main body, intended to bear against the ears of a user, the fixing stud and the main body being connected together, preferably by a hinge.

• ledit cadre principal comprenant deux ouvertures aptes à recevoir respectivement deux verres, chaque ouverture comprenant un bord périphérique intérieur apte à coopérer avec un bord périphérique extérieur d'un verre, le cadre principal comprenant au moins un premier logement, débouchant dans le bord périphérique intérieur d’une ouverture, et au moins un deuxième logement associé au premier logement de ladite ouverture,
• le premier ergot et le deuxième ergot du tenon de fixation de la branche de lunettes sont respectivement montés dans le premier logement et le deuxième logement, le premier ergot étant configuré pour être verrouillé en position dans le premier logement lors du montage d’un verre dans son ouverture.

The invention also relates to a spectacle frame comprising a main frame and at least one spectacle arm, as presented above, mounted on the main frame,

• said main frame comprising two openings capable of receiving two lenses respectively, each opening comprising an inner peripheral edge capable of cooperating with an outer peripheral edge of a lens, the main frame comprising at least a first housing, opening into the inner peripheral edge of an opening, and at least one second housing associated with the first housing of said opening,
• the first lug and the second lug of the spectacle arm attachment pin are respectively mounted in the first housing and the second housing, the first lug being configured to be locked in position in the first housing when a lens is fitted in its opening.

Preferably, the first housing extends tangentially to the inner peripheral edge of the opening. This allows the first lug to be optimally blocked when fitting the lens. Preferably, the housing defines a tangential length in the plane of the main frame.

The invention also relates to a pair of spectacles comprising a frame as presented above and at least one lens mounted in said opening and locking the first lug in position in the first housing.

• un montage du premier ergot et du deuxième ergot du tenon de fixation de la branche de lunettes respectivement dans le premier logement et le deuxième logement, le premier ergot débouchant dans le bord périphérique intérieur d’une ouverture
• un montage d’un verre dans l’ouverture de manière à ce qu’un bord du verre verrouille le premier ergot en position dans le premier logement.

The invention further relates to a method for mounting a pair of spectacles as presented previously, the method comprising:

• a mounting of the first lug and of the second lug of the fixing lug of the spectacle arm respectively in the first housing and the second housing, the first lug emerging in the inner peripheral edge of an opening
• mounting a glass in the opening so that an edge of the glass locks the first lug in position in the first housing.

PRESENTATION OF FIGURES

The invention will be better understood on reading the following description, given by way of example, and referring to the following figures, given by way of non-limiting examples, in which identical references are given to similar objects. .

Figure 1 is a schematic representation of a pair of glasses according to the prior art.

Figure 2 is a schematic representation of a pair of glasses according to one embodiment of the invention.

Figures 3A and 3B are different schematic representations of embodiments of branches connected to a main frame.

FIG. 4 is a schematic representation of the assembly of a fixing pin for a branch in a main frame.

Figure 5 is a schematic representation in perspective of a fixing pin.

Figures 6 and 7 are schematic side representations of a fixing pin for a large temporal dimension (Figure 6) and for a small temporal dimension (Figure 7).

FIGS. 8A to 8C are schematic representations of different inclinations of the first lug of a fixing pin as a function of the shape of the glass or the curvature of the glass in the vicinity of the pin.

FIG. 9A is a schematic representation of a modular fastening post with a support member comprising a housing.

Figure 9B is a cross-sectional representation of the securing post of Figure 9A.

FIG. 9C is a schematic representation of a modular fixing post with a support member comprising several housings.

Figure 9D is a schematic representation of the fixing pin of Figure 9C in the high position.

Figure 9E is a schematic representation of the fixing pin of Figure 9C in the down position.

It should be noted that the figures expose the invention in detail to implement the invention, said figures can of course be used to better define the invention if necessary.

DETAILED DESCRIPTION OF THE INVENTION

Referring to Figure 2, there is presented a pair of glasses P according to the invention comprising a frame 1 in which are mounted two glasses V. The frame 1 comprises a main frame 2, comprising two openings 3 in which are received respectively the two glasses V, as well as two branches B mounted at the lateral ends of said main frame 2. The main frame 2 is defined in an orthogonal frame (X, Y, Z) in which the Z axis extends vertically from bottom to top while the Y axis runs laterally from right to left and the X axis runs from back to front. The main frame 2 extends in the plane (Y, Z). Conventionally, in the unfolded position, the arms B extend along the X axis and, in the folded position, along the Y axis. In FIG. 2, the pair of glasses P is seen from the rear.

Each opening 3 of the main frame 2 comprises an inner peripheral edge 30 capable of cooperating with an outer peripheral edge of a lens V. Such an opening 3 is also known to those skilled in the art under the designation of strapping. The main frame 2 comprises a nose bridge 8 supporting two nose pads or the like to provide support on the nose. The main frame 2 comprises a rear face intended to be turned towards the user and a front face opposite the rear face.

Subsequently, for the sake of clarity and conciseness, a main frame 2 will be described which has a vertical axis symmetry Z as illustrated in FIG. 2. In other words, the inner peripheral edges 30 of the openings 3 are symmetrical. Also, it will only be described below the inner peripheral edge 30 of a single opening 3, also called strapping. Nevertheless, it goes without saying that the invention also applies to a main frame 2 which is not symmetrical and whose inner peripheral edges 30 of the openings 3 are different. As illustrated in FIG. 4, each inner peripheral edge 30 comprises a groove 33, known as a bezel for those skilled in the art, in order to cooperate with the glass V. A groove 33 is by nature concave to receive a convex edge glass V. It goes without saying that each inner peripheral edge 30 could also include a projecting portion to cooperate by complementarity of shapes with the glass V which would include a groove.

In this example, with reference to FIG. 3A, the main frame 2 comprises at least one first housing 31, opening into the inner peripheral edge 30 of an opening 3, and at least one second housing 32 associated with the first housing 31 of said opening 3. Unlike the first housing 31 which is formed at the level of the inner peripheral edge 30 of each opening 3, the second housing 32 is formed at a distance from the inner peripheral edge 30.

As illustrated in Figures 3A, 3B and 4, the first housing 31 is formed in the inner peripheral edge 30. In the plane (Y, Z), it preferably has an oblong shape defining a main axis (Figures 8A-8C) which extends tangentially to the inner peripheral edge 30. Such a first housing 31 allows optimum blocking of a part of the branch B when mounting the lens V as will be presented later. The first housing 31 is thus positioned according to the shape of the inner peripheral edge 30 of the glass V as will be presented below with reference to FIGS. 8A to 8C. Referring to Figure 4, the first housing 31 opens into the inner peripheral edge 30 entirely along the X axis. It goes without saying that it could open only partially as shown in Figure 3B. In this example, a cord 25 is provided between the opening of the inner peripheral edge 30 and the opening of the rear face of the main frame 2.

The first housing 31 and the second housing 32 extend parallel along the X axis and are closed by a front partition as shown in Figure 3A. In other words, the first housing 31 and the second housing 32 are blind. Preferably, the first housing 31 and the second housing 32 are separated by a distance of between 3 and 10 mm. The first housing 31 and the second housing 32 extend at the same vertical height along the Z axis, that is to say they are aligned along the Y axis, so as to allow folding of the branch B around a vertical hinge axis as will be presented later.

Referring to Figure 3A, the second housing 32 preferably has a circular section so as to allow rotation around an axis X as will be presented later. Such a rotation makes it possible to take up any play in the manufacture of the main frame 2 in order to allow the mounting of the fixing pin (4).

A branch B according to the invention will now be presented. Referring to Figure 3A, each branch B comprises a fixing pin 4, intended to be mounted in the main frame 2, and a main body 5, intended to come to rest on the ears of a user.

In the prior art, the fixing pin being an integral element of the main frame. According to the invention, the fixing pin 4 can advantageously be mounted independently or pre-assembled with the branch B.

Preferably, the fixing pin 4 and the main body 5 are connected by a hinge 6 so as to allow the folding/unfolding of the main body 5 of the branch B with respect to the main frame 2. Nevertheless, it goes without saying that branch B could be devoid of a hinge, the fixing pin 4 being connected directly to the main body 5. An inclination of the branch B is nevertheless possible by taking advantage of the flexibility of the main body 5.

A fixing stud 4 according to the invention will be presented in detail with reference to FIGS. 3A/3B to 7. The fixing stud 4 is preferably made of plastic or metal.

The fixing pin 4 comprises at least one first lug 41 and at least one second lug 42 respectively configured to be mounted in the first housing 31 and the second housing 32 of the main frame 2. The first lug 41 is configured to be locked in position in its first housing 31 when mounting a glass V in its opening 3. Thus, the use of two lugs 31, 32 makes it possible to improve the fixing with the main frame 2 while preventing rotation of the fixing tenon 4 around an X axis. The binding is thus more robust. The use of two fixing points guarantees alignment along the Y axis and therefore opening of the hinge 6 parallel to the Z axis.

In this embodiment, the fixing pin 4 comprises a support element 40 comprising a rear face 40B on which is fixed at least one connecting member 44, intended to form the hinge 6, and a front face 40A, opposite the rear face 40B, on which are fixed the first lug 41 and the second lug 42. The first lug 41 and the second lug 42 are respectively mounted in the first housing 31 and the second housing 32 of the main frame 2. The first lug 41 is locked in position in its first housing 31 when mounting a glass V in its opening 3. The connecting member 44 corresponds to a front face knuckle for a branch according to the prior art.

The support element 40 extends in the plane (X,Y) in the mounting position. It is preferably flattened. There is presented a support element 40 having a pseudo-rectangular shape but it goes without saying that it could be various, in particular, rectangular or oblong. As illustrated in Figure 5, the support element 40 extends along an axis T.

As illustrated in Figures 6 and 7, the first lug 41 and the second lug 42 extend parallel, preferably orthogonal to a plane (Y, Z) defined by the main frame 2, that is to say , parallel to the X axis in the mounted position. Preferably, the first lug 41 and the second lug 42 have the same length along the X axis. Preferably, the distance between the lugs 41, 42, defined along the Y axis, is between 3 mm and 10 mm. This distance is the same that separates the first housing 31 and the second housing 32.

Referring to Figures 4 and 6, the first lug 41 comprises an inner face 41INT facing the opening 3 intended to receive the glass V, the inner face 41INT is configured to cooperate with the edge of the glass V in order to allow the blocking of the first pin 41. Preferably, the inner face 41INT comprises a groove 411. The first pin 41 comprises an outer face 41EXT, opposite the inner face 41INT, which comprises a plurality of projecting locking teeth 412 configured to be constrained against a wall of the first housing 31 during assembly of the glass V. Such projecting locking teeth 412 make it possible to ensure stable and lasting fixing during the insertion of the first lug 41 into its first housing 31.

Preferably, as illustrated in Figure 5, the first lug 41 has an oblong section defining an axis U. Still referring to Figure 5, the first lug 41 is mounted in an articulated manner to the support element 40, preferably, along an axis of articulation D which is orthogonal to a plane (Y, Z) defined by the main frame 2, that is to say, parallel to the axis X. The axis of articulation D is orthogonal to the plane defined by the support element 40. Such a characteristic is very advantageous because it makes it possible to adapt the fixing stud 4 to any shape of glass V. In other words, the fixing stud 4 has a universal use making it possible to adjust the angle of inclination α of the first lug 41 with respect to the support element 40 as will be presented in detail with reference to FIGS. 8A to 8C.

In this example, the second lug 42 has a circular section. The diameter of the second lug 42 is between 1 mm and 4 mm.

In this example, the connecting member 44 is in the form of a clevis making it possible to participate in the formation of the hinge 6. With reference to FIGS. 6 and 7, the connecting member 44 extends parallel to the first lug 41 and is separated from the latter by a distance d1 of between 1 mm and 10 mm. Preferably, two types of fixing studs 4 are proposed in FIGS. 6 and 7, a large temporal dimension (FIG. 6) in which the distance d1 is of the order of 6 mm and a small temporal dimension (FIG. 7) in which the distance d1 is of the order of 3 mm. Such types of fixing pin 4 make it possible to adapt to the temporal width of the users in order to adapt to their morphology.

Referring to Figures 6 and 7, there is shown a fixing pin 4 in one piece. The connecting member 44 is preferably made from the material of the support element 40 or welded to the latter.

Alternatively, with reference to Figures 9A to 9E, the fixing pin 4 can be modular. In particular, the connecting member 44 is mounted in a removable manner from the support element 40. The supporting element 40 comprises at least one housing for receiving the connecting member 44 by interlocking.

Referring to Figures 9A to 9B, there is shown a fixing pin 4 in two parts. The support element 40 is connected to the lugs 41, 42 and has two housings 401, 402 to receive the connecting member 44. In this embodiment, the connecting member 44 has a U-shape and has two tabs 441 parallel which are connected by a base 440. In this example, the housings 401, 402 are in the form of two parallel slots along the Y axis and offset along the vertical direction Z.

To assemble the fixing tenon 4, it suffices to slide the connecting member 44 from the front to the rear so as to cause the lugs 441 to penetrate into the housings 401, 402 of the support element 40. In position assembled, the base 440 of the connecting member 44 is blocked by the support element 40. Such a modular assembly is advantageous given that it makes it possible to mount different types of connecting members 44 on the same supporting element 40.

Another embodiment is shown in Figures 9C through 9E. Referring to Figure 9C, the support element 40 comprises three housings 401, 402, 403 to receive the connecting member 44 in two positions: a high position PH (Figure 9D) and a low position PB (Figure 9E) . In this example, the housings 401, 402, 403 are in the form of three parallel slots along the Y axis and offset along the vertical direction Z.

As illustrated in FIG. 9D, in the high position PH, the lugs 441 are positioned in the upper housings 401, 402 of the support element 40. As illustrated in FIG. 9E, in the low position PB, the lugs 441 are positioned in the upper housings 402, 403 of the support element 40. Such a modular assembly is advantageous given that it makes it possible to mount different types of connecting members 44 on the same support element 40 and according to different heights. This is particularly advantageous for adapting to the morphology of users (height of the ears, etc.).

The main body 5 of branch B extends longitudinally along the X axis in the unfolded position and along the Y axis in the folded position. The shape, color and material of the main body 5 can be chosen freely in order to match the tastes of the user.

As illustrated in FIG. 3B, the main body 5 comprises a front end 51 configured to be connected with the connecting member 44 of the fixing tenon 4 by a pin 43 so as to form a hinge 6 of articulation axis Z6 .

Preferably, each branch B is preassembled, the main body 5 being connected to the fixing pin 4 by the hinge 6. Preferably, there is a collection of branches B whose fixing pin 4 is identical for each branch B and of which only the main body 5 is different (color, shape, material, etc.). Thus, a user can update his frame 1 by simply replacing his temples B.

A method for mounting a pair of glasses P according to an example of implementation of the invention will be presented.

The method comprises mounting the first lug 41 and the second lug 42 of the fixing pin 4 of the branch B respectively in the first housing 31 and the second housing 32 of the main frame 2. Once mounted, the first lug 41 forms a part of the inner peripheral edge 30 of the opening 3. In particular, the groove 411 of the first lug 41 extends in the continuity of the groove 33 of the inner peripheral edge 30 as illustrated in FIG. 4. The fixing stud 4 is mounted in the main frame 2 according to a translation movement from the rear to the front.

The presence of the second lug 42 prohibits any rotation of the fixing stud 4 around the axis X, which improves robustness. In addition, this makes it possible to align the support element 40 along the Y axis so that the axis of the hinge 6 is indeed vertical. In addition, the presence of two lugs 41, 42 makes it possible to temporarily immobilize the fixing stud 4 during assembly. The optician will thus be able to mount the lens V in a practical way, without holding the fixing pin 4.

When mounting the fixing pin 4, the method comprises, preferably, a step of orienting the first lug 41 around its axis of articulation D in order to adapt to the shape of the lens V.

With reference to FIGS. 8A to 8C, an angle of inclination α of the first lug 41 is defined between the axis U of the first lug 41 in the plane (Y, Z) and the axis T of the support element 40 To allow robust assembly, the axis U of the first lug 41 is positioned tangentially to the inner peripheral edge 30 of the opening 3. In this example, with reference to FIG. 8A, for a glass V of round shape, with an inner peripheral edge 30 of round shape, the angle of inclination α is of the order of 60°. With reference to FIG. 8B, for a butterfly-shaped glass V, the angle of inclination α is of the order of 110°. With reference to FIG. 8C, for a glass V of rectangular shape, the angle of inclination α is of the order of 90°.

The method further comprises mounting a glass V in the opening 3 so that an edge of the glass V locks the first lug 41 in position in its first housing 31. The branch B is thus immobilized in a stable manner . The glass V cooperates simultaneously with the groove 411 of the first lug 41 and the groove 33 of the inner peripheral edge 30.

There was previously presented an example of assembly in which each branch B is preassembled but it goes without saying that the fixing pin 4 could initially be mounted independently in the housings 31, 32 and locked by the assembly of the glass V. Then, secondly, the branch body 5 could be connected to the fixing pin 4 in a manner analogous to the prior art.

In this example, the assembly of a pair of glasses P has been presented, but it goes without saying that the invention also applies to a magnifying glass. In this embodiment, the fixing pin comprises a connecting member to a magnifying glass handle and not to a branch.

Thanks to the invention, an optician can assemble by himself, without special tools, a large number of pairs of glasses P with different aesthetic aspects in order to meet the needs of users. This saves time for the optician as well as a practical gain. He can assemble without tools, with his hands only, a pair of glasses. Preferably, the pairs of glasses are delivered as a kit (main frame, temples and lenses) and are simply assembled by the optician or directly by the user.

Advantageously, the branches can be preassembled following their manufacture, which reduces the cost price compared to a branch having to be assembled directly by an optician.

B temples can be chosen directly by the user from a collection of B temples and fitted by the optician. Advantageously, the main frame 2 and the branches B can be made of different materials. Preferably, the same branch B can be mounted on main frames 2 of very different natures and comprising openings 3 for glasses V which are very different (curvatures, etc.). The fixing pin 4 makes it possible to adapt to different user morphologies (height of the ears, temporal width, etc.).

Claims (14)

Pin (4) for fixing a spectacle arm (B) to a main frame (2) of a spectacle frame (1), said main frame (2) comprising two openings (3) capable of receiving two lenses respectively (V), each opening (3) comprising an inner peripheral edge (30) capable of cooperating with an outer peripheral edge of a lens (V), the main frame (2) comprising at least a first housing (31), emerging in the inner peripheral edge (30) of an opening (3), and at least one second housing (32) associated with the first housing (31) of said opening (3), the fixing pin (4) comprising at least one first lug (41) and a second lug (42) respectively configured to be mounted in the first housing (31) and the second housing (32) of the main frame (2), the first lug (41) being configured to be locked in position in the first housing (31) when mounting a glass (V) in its opening (3). Fixing pin (4) according to claim 1, comprising a support element (40) comprising a rear face (40B) on which is fixed at least one connecting member (44) configured to participate in the formation of a hinge ( 6) of branch (B). Fixing pin (4) according to claim 2, in which the support element (40) comprises a front face (40A), opposite the rear face (40B), on which the first lug (41) and the second lug (42). Fixing pin (4) according to one of Claims 1 to 3, in which the first lug (41) and the second lug (42) extend parallel. Fixing stud (4) according to one of Claims 1 to 4, in which the distance between the lugs (41, 42) is between 3 mm and 10 mm. Fixing pin (4) according to one of Claims 1 to 5, in which the first lug (41) is mounted in an articulated manner. Fixing stud (4) according to one of Claims 1 to 6, in which the first lug (41) comprises an inner face (41INT) facing the opening (3), the inner face (41INT) being configured to receive the glass (V) by complementarity of shapes in order to allow the blocking of the first lug (41). Fixing stud (4) according to one of Claims 1 to 7, in which the second lug (42) has a circular section so as to allow it to pivot in the second housing (32). Fixing pin (4) according to one of Claims 2 to 7, in which the connecting member (44) is mounted by interlocking with the support element (40). Spectacle branch (B) for spectacle frame (1) comprising:

• a fixing pin (4) according to one of claims 1 to 9, intended to be mounted in a main frame (2) of the spectacle frame (1), and
• a main body (5), intended to come to rest on the ears of a user, the fixing pin (4) and the main body (5) being connected together, preferably, by a hinge (6).

Spectacle frame (1) comprising a main frame (2) and at least one spectacle arm (B), according to claim 10, mounted on the main frame (2),

• said main frame (2) comprising two openings (3) able to respectively receive two lenses (V), each opening (3) comprising an inner peripheral edge (30) able to cooperate with an outer peripheral edge of a lens (V) , the main frame (2) comprising at least a first housing (31), emerging in the inner peripheral edge (30) of an opening (3), and at least a second housing (32) associated with the first housing (31) of said opening (3),
• the first lug (41) and the second lug (42) of the fixing pin (4) of the spectacle arm (B) are respectively mounted in the first housing (31) and the second housing (32), the first lug ( 41) being configured to be locked in position in the first housing (31) when mounting a glass (V) in its opening (3).

Spectacle frame (1) according to Claim 11, in which the first housing (11) extends tangentially to the inner peripheral edge (30) of the opening (3). Pair of spectacles comprising a frame (1) according to one of claims 11 and 12 and at least one lens (V) mounted in said opening (3) and locking the first lug (41) in position in the first housing (31) . A method of fitting a pair of spectacles according to claim 13, the method comprising:

• a mounting of the first lug (41) and of the second lug (42) of the fixing stud (4) of the spectacle arm (B) respectively in the first housing (31) and the second housing (32), the first lug ( 31) emerging in the inner peripheral edge (30) of an opening (3)
• a mounting of a glass (V) in the opening (3) so that an edge of the glass (V) locks the first lug (41) in position in the first housing (31).