Optimized plate holder and eyeglass frame incorporating at least one such optimized plate holder

Abstract

A lens holder (5) for spectacle frames, the lens holder (5) having a fixing portion (7) configured to be mounted in a recess of the spectacle frame along an insertion axis X oriented from back to front, the fixing portion (7) having a closing face (70) having an auxiliary groove (71) configured to cooperate with a lens of the spectacle frame in order to lock the lens holder (5) and a mounting face (72) having at least one locking tooth (73) configured to be pressed against a wall of the recess during lens mounting. Figure 2

Description

Description Title of the invention: Optimized plate holder and mount glasses featuring at least one such optimized plate holder technical field

[0001] — The present invention relates to the field of spectacle frames and, more particularly- Specifically, the so-called "rimmed" frames that surround the peripheral edge of the lenses.

[0002] Typically, a pair of glasses consists of a frame of glasses in which are mounted sunglasses, prescription lenses, or novelty lenses. The frame of The glasses include a main frame adapted to receive said lenses, and two branches mounted at the lateral ends of said main frame. Each branch is connected to the main frame via a hinge which primarily allows to fold / unfold the arm. In addition, the main frame includes nose pads to improve user comfort when wearing the frames. In practice, the The nose bridge is formed from the same material as the main frame, in particular in acetate, while the nose pads are made of a different material and attached by bonding using various processes, some more lengthy and demanding than others.

[0003] — Given the large number of its components, a spectacle frame is lengthy and complex to assemble by a manufacturer or optician, which in increases the cost. Furthermore, since eyeglass frames are a fashion accessory, it is It is necessary to design a large number of frame models in order to satisfy the sum total of users' desires, which presents another drawback.

[0004] To eliminate at least some of these drawbacks, it is known by the demand for patent FR3037154A1 a spectacle frame comprising a housing in which is mounted a plate holder. The plate holder is locked in position in said opening during glass mounting. Such a mounting of the plate holder allows to adapt the shape and size of the plate holder according to the needs of the user, their body shape, or their aesthetic preferences. Furthermore, for the optician, Assembling such a plate holder is quick and convenient.

[0005] — In practice, during insertion, the plate holder is likely to move before that the lens is not mounted. This positioning defect affects the fit of the frame and is a source of discomfort. Also, in practice, the optician must use one hand to Hold the plate holder while using your other hand to mount the glass. This is inconvenient and increases the risk of damage.

[0006] Furthermore, when the plate holder is locked by the glass, the latter is suspended susceptible to movement and freeing itself due to vibrations, which leads to the same disadvantages: An immediate solution to eliminate this displacement would be to realize additional gluing or locking using an extra part (pin, etc.) could be used. However, such a solution cannot be adopted as it significantly increases the cost and assembly time of such a plate holder. The invention therefore aims to remedy at least some of these drawbacks by offering a new frame that is easy, quick and secure to assemble while having a reduced manufacturing cost. Description of the invention The invention relates to a nose pad holder for spectacle frames, the nose pad holder comprising a fixing portion configured to be mounted in a recess of the spectacle frame along an insertion axis X oriented from back to front, the fixing portion comprising: a closing face having an auxiliary groove configured for cooperate with a lens of the eyeglass frame in order to lock the holder plaque; and a mounting face having at least one protruding locking tooth configured to be held against a wall of the housing during assembly glass. Advantageously, the nose pad holder is a modular component whose shape, color, and size can be freely chosen. Thanks to the locking face, the frame opens similarly to a traditional frame when the mounting part is in place. This allows an optician to fit the lens in the conventional manner, which is advantageous. Furthermore, it is no longer necessary to weld the nose pads together, as in previous methods, resulting in significant time savings. A simple slide allows the nose pad holder to be mounted when the frame is lying flat. Thanks to the protruding locking tooth, the fixing part has a raised section that penetrates the housing wall during glass installation to improve the grip of the frame holder. In other words, any slippage is eliminated and the risk of unintentional removal is eliminated. Preferably, the locking tooth has a triangular cross-section defining a front face and a rear face. Such a locking tooth has a pointed end capable of penetrating the material of the housing wall during locking. The definition of a front face and a rear face facilitates insertion and prevents removal. According to one aspect of the invention, the front face of the locking tooth is inclined relative to the insertion axis X at an angle between 100° and 120°. Such an in- The tilting of the front face makes insertion easier for an optician. Minimal effort is required from the latter. According to another aspect of the invention, the rear face of the locking tooth is inclined relative to the insertion axis X at an angle between 85° and 95°. This inclination of the rear face prevents any withdrawal. The shape of the locking tooth resists any withdrawal, thus providing optimal resistance to vibrations and shocks. Preferably, the glass holder includes several locking teeth configured to be pressed against the housing wall during glass installation. The use of multiple teeth ensures the glass holder is permanently secured. Preferably, the fixing portion has a cross-section, defined with respect to the insertion axis, that is substantially rectangular with rounded edges. The complementary shapes of the fixing portion of the insert holder and the housing ensure that the insert holder remains stable in its housing prior to being locked by the glass. The locking teeth form a relief that prevents any unintentional withdrawal by being forced during insertion. Preferably, the plate holder comprises a nose plate and a connecting portion linking the nose plate to the fixing portion. Thus, each plate holder can be made to adapt to the morphology of different nose shapes by simply adapting the connecting portion and the nose plate, the fixing portion remaining advantageously identical between the different plate holders. The invention also relates to a spectacle frame comprising a main frame having a rear face intended to be turned towards the user and a front face opposite the rear face and comprising two openings configured to receive two lenses respectively, at least one opening comprising an inner peripheral edge capable of cooperating with an outer peripheral edge of a lens, the inner peripheral edge of said opening comprising at least one housing in which is mounted a plate holder as previously described, the locking tooth of the mounting face of the fixing part being in contact with a wall of the housing, said plate holder being configured to be locked in position by said lens when the lens is mounted in said opening. Preferably, the inner peripheral edge of the opening having a main groove, the auxiliary groove of the closing face is continuous with the main groove. Thus, the lens is securely held in a peripheral groove. Preferably, the grooves are aligned to form a continuous overall groove similar to a mounting groove for a frame according to the prior art. Preferably, the mounting part of the plate holder and the housing have complementary shapes so as to limit play and facilitate assembly. According to one aspect of the invention, the closing face of the fixing part is adapted to ensure the continuity of the peripheral edge of the opening when the fixing part is mounted in its housing. Preferably, the main frame has a rear face facing the user and a front face opposite the rear face. The housing includes a front stop wall configured to lock the insert holder. Thus, the insert holder's mounting portion is concealed by the stop wall, with only the frame visible on the front face. Such a stop wall is advantageous for limiting the insert holder's movement during installation in the housing. It also allows for precise positioning of the locking teeth to secure the mounting portion. The invention also relates to a pair of glasses comprising a frame as previously presented and at least one lens mounted in an opening and locking in position said plate holder, the locking tooth of the plate holder being pressed against the wall of the housing during the mounting of the lens. The invention also relates to a method for mounting at least one lens in a spectacle frame as described above, the method comprising: an insertion step, preferably from back to front, along the axis inserting the plate holder into the inner peripheral edge housing of an opening, the locking tooth of the mounting face of the part of fixing being in contact with the wall of the housing; and a step of mounting a glass in said opening in order to constrain the locking tooth of the mounting face of the fixing part against the wall of the housing in order to lock said plate holder in position. Thanks to this invention, a single assembly step is all that is needed to lock, embed, and thus secure the lens and nose pad holder in position, significantly reducing frame assembly time. Indeed, the locking tooth secures the position of the fixing part in the housing without requiring any additional securing mechanism. Brief description of the drawings The invention will be better understood upon reading the following description, given solely by way of example, and referring to the accompanying drawings given by way of non-limiting examples, in which identical references are given to similar objects and on which: [fig.1] is a schematic representation of a pair of glasses according to the invention with attached insert holders; [fig.2] is a schematic perspective representation of a plate holder according to an embodiment of the invention without a nose plate; [fig.3] is a schematic side view representation of the plate holder in figure 2; [fig.4] is a close schematic representation of two locking teeth of the fixing part of figure 3; [fig.5A] [fig.5B] [fig.5C] are schematic representations of different types of plate holders; [fig.6] and [fig.7] are schematic representations of a step in inserting a plate holder into a housing in a mount; [fig.8] is a schematic representation of a step in mounting the lens in the frame opening: [fig.9] is a schematic cross-sectional representation of the plate holder in the glass-locked position. It should be noted that the figures explain the invention in detail for implementing the invention, said figures being of course able to serve to better define the invention where appropriate. Description of the implementation methods With reference to Figure 1, a rimmed frame 1 is shown having a main frame 2 comprising two openings 3 suitable for receiving lenses 4 respectively. In this example, each opening 3 includes an inner peripheral edge 30 suitable for cooperating with an outer peripheral edge of a lens 4. Such an opening is also known to those skilled in the art as a rim. With further reference to figure 1, the mount 1 comprises two plate holders 5 according to the invention. In this embodiment, the inner peripheral edge 30 of each opening 3 has a housing 31 in which a plate holder 5 is mounted. Each plate holder 5 is configured to be locked in position when a glass 4 is mounted in its opening 3 as will be shown later. In this example, the plate holders 5 are permanently mounted; for example, the glass 4 is mounted to secure the assembly. Preferably, gluing, welding, or screwing is not required. The frame has a modular structure comprising several independent components. Therefore, if one has a collection of two main frames, and a With a collection of 5 nose pads, a frame with an original aesthetic appearance can be assembled by combining several components from said collections. As will be shown later, a collection of 5 nose pads is particularly advantageous for adapting to the different morphologies of frame users. Furthermore, assembling the frame is very simple, as the lens mounting 4 allows the nosepiece holders 5 to be locked in place simultaneously. Advantageously, the lens mounting 4 is similar to prior art and can therefore be carried out quickly and conveniently by opticians. The mounting of the nosepiece holders 5 is particularly simple, convenient, and secure, as will be explained later. The various components of the eyeglass frame 1 will now be presented in detail. In this example, still referring to Figure 1, the main frame 2 has two openings 3 adapted to receive lenses 4. The main frame 2 is made of acetate in this example, but it goes without saying that other materials could be suitable, in particular, any metallic or plastic material. As illustrated in Figure 1, the main frame 2 is essentially flat, but it goes without saying that it could be different, in particular, curved. The main frame 2 includes a nose bridge 20. As is known, the main frame 2 has a rear face intended to face the user and a front face opposite the rear face. The terms "rear" and "front" will be used hereafter in accordance with this definition. Each opening 3 includes an inner peripheral edge 30 adapted to cooperate with an outer peripheral edge of a lens 4. In this example, still with reference to Figure 1, the inner peripheral edge 30 has a main groove 32 to allow a lens 4 to be locked stably in the frame 1. Preferably, the main groove 32 has a V-shaped cross-section to facilitate the mounting of the lens 4. However, it is understood that the cross-section of the groove 32 could have a different shape. As previously stated, each inner peripheral edge 30 has a recess 31 in which an insert holder 5 is mounted. In other words, each recess 31 forms a discontinuity in the inner peripheral edge 30. Consequently, the groove 32 in the inner peripheral edge 30 also has a discontinuity. Advantageously, when an insert holder 5 is inserted into its recess 31, the peripheral edge 30 becomes continuous again, as will be shown later. In this example, each opening 3 has a housing 31 at its inner lateral end for mounting a plate holder 5 as illustrated in Figure 1. Preferably, housing 31 is positioned at a vertical height lower than that of the nose bridge 20 of frame 1, i.e., at an optimal position for comfort and ergonomics. In the prior art, it has been proposed to form recesses in the nose bridge 20 of the main frame 2 in order to take advantage of its greater thickness. According to the invention, a small recess 31 can be made and optimally positioned on the main frame 2. It is no longer necessary to form it in a thick portion of the nose bridge 20. In this example, the recess 31 has a vertical length of approximately 5 mm and a vertical thickness of approximately 1.2 mm. In this example, with reference to Figure 6, each slot 31 is opened from the rear to allow the mounting of a nose pad holder 5 in a slot 31 by sliding it from rear to front along an insertion axis X. Such mounting is simple and quick to perform. This rear-to-front mounting is advantageous for an optician who can work flat on the frame from the rear. The risk of deformation or mounting defects is considerably reduced. It goes without saying, however, that front-to-rear insertion is also possible. In this example, the housing 31 includes a front stop wall 33 adapted to block the insert holder S during its forward translation along the insertion axis X. Such a stop wall 33 also conceals the insert holder 5 when it is located in its housing 31. In other words, when an insert holder 5 is mounted in a housing 31 with a stop wall 33, it is not visible on the front face of the main frame 2 of the mount 1. The stop wall 33 allows the position of the insert holder 5 to be defined very precisely along the insertion axis X, thus preventing any mounting errors. Any type of lens 4 can be used in said frame 1, in particular, a corrective, tinted or fancy lens or a contact lens. Each lens 4 has an outer peripheral edge, preferably beveled as illustrated in figure 8 in order to cooperate with the groove 32 of the openings 3 of the frame 1. A plate holder 5 according to one embodiment of the invention is schematically represented in Figure 6. Each plate holder 5 comprises a nose plate 6, a fixing part 7 intended to be housed in a housing 31 and a connecting part 8 linking the nose plate 6 to the fixing part 7. As illustrated in Figure 2, the mounting portion 7 of an insert holder 5 has a shape complementary to the housing 31 in which it is mounted in order to facilitate its insertion and allow for precise mounting, i.e., free from any functional play that could cause vibrations. Preferably, a mortise and tenon joint between the insert holder 5 and the housing 31 is particularly suitable and simple to implement. The fixing portion 7 extends along the insertion axis X and has a cross-section, defined with respect to the insertion axis X, that is substantially rectangular with rounded edges to ensure a permanent fixing and limit the formation of sharp angles that could reduce the lifespan of the assembly. This shape is advantageous compared to an H-shape, which induces significant stresses and requires a large housing within a substantial thickness of the mount. With reference to Figure 3, the fixing part 7 has a closing face 70, or inner face, configured to ensure the continuity of the peripheral edge 30 of the opening 3 when the fixing part 7 is mounted in its housing 31. The closing face 70 is preferably curved to conform to the shape of the outer peripheral edge of the glass 4. The closing face 70 has an auxiliary groove 71 to cooperate with the outer peripheral edge of the glass 4. As illustrated in Figure 7, in the mounted position, the auxiliary groove 71 of the closing face 70 extends in line with the main groove 32 of the inner peripheral edge 30 of the opening 3 to form an overall peripheral groove in which the glass 4 can be mounted as illustrated in Figure 7. Preferably, to ensure a good compromise between mechanical strength and ergonomics, the length of the fixing portion 7, along the insertion axis X, is between 3.3 mm and 3.5 mm. Preferably, the vertical length of the fixing portion 7 is between 4.8 mm and 5.2 mm. With reference to figure 2, the fixing part 7 has a mounting face 72, or outer face, configured to be in contact with a wall 310 of the housing 31. The mounting face 72 is opposite the closing face 70 and allows to ensure its precise positioning as will be shown later. In this example, the mounting face 72 has several projecting locking teeth 73 configured to be constrained against a wall 310 of the housing 31 (Figures 6 and 9) during the mounting of the glass 4; in particular, four. It is understood, however, that the number of locking teeth 73 could be different. In this example, the locking teeth 73 are constrained against a bottom wall 310 of the housing 31. It is understood that other faces of the fixing portion 7 could include teeth; in particular, an upper and / or a lower face of the fixing portion 7. More precisely, with reference to Figures 3 and 4, each locking tooth 73 has a triangular cross-section defining a front face 731 and a rear face 732. In this example, the front face 731 of the locking tooth 73 is inclined with respect to the insertion axis X at an angle θ1 between 100° and 120°. Similarly, the rear face 732 of the locking tooth 73 is inclined with respect to the insertion axis X at an angle 02 between 85° and 95°. Thus, the locking tooth 73 has a slightly inclined front face 731 during insertion, which limits the insertion effort for the optician. Conversely, the rear face 732 is sharply inclined and increases the mechanical resistance towards the rear, i.e., in the direction of withdrawal. Any unintentional withdrawal is thus prevented. Relative displacement of the fixing part 7 in its housing 31 is therefore greatly reduced, which improves resistance to vibrations. Each locking tooth 73, by virtue of its projecting end, forms a gripping relief in the wall 310 of the housing 31, thus preventing any rearward movement. Advantageously, the projecting end of each locking tooth 73 penetrates the material of the wall 310 of the housing 31. With reference to figure 2, the connecting part 8 has a rod 81, preferably curved, and a mounting member 82 configured to receive the nose plate 6. The shape, size and curvature of the rod 81 are preferably adapted to the needs of each user. The nose plate 6 is mounted on the connecting part 8 and can be conveniently attached. Similarly, the shape and size of the nose plate 6 are preferably adapted to the needs of each user. Advantageously, with reference to Figures 5SA-5C, a collection of 5, 5', 5°' plate holders of different shapes, sizes, and appearances can be made available to suit the morphology and aesthetic preferences of each user. Advantageously, each 5, 5', 5"' plate holder has identical mounting parts 7 but different connecting parts 8, 8', 8°' and nose plates (not shown). Thus, the same main frame 2 can conveniently accommodate different 5, 5', 5°' plate holders. A method for mounting lenses 4 in the frame of spectacles 1 will henceforth be presented with reference to figures 6 to 9. In this implementation example, an optician first selects the components of the frame 1 that he wants to assemble, that is, the main frame 2 and the nose pads 5. It goes without saying that the nose pads 5 of the same frame 1 can be identical or different. Next, with reference to Figures 6 and 7, the optician inserts each plate holder 5 into the recesses 31 of the openings 3. To do this, they slide the fastening parts 7 of the plate holders 5 from the rear to the front within the recesses 31 along the insertion axis X. With reference to Figure 7, in the mounted position, the closing face 70 of the fastening part 7 extends in continuity with the inner peripheral edge 30 of the opening 3. Once the plate holders 5 are mounted, the inner peripheral edge 30 of each opening 3 is continuous. In this example, it also includes a continuous peripheral groove which is formed partly in the main frame 2 (groove main 32) and partly on the closing faces 70 (auxiliary groove 71) of the nosepiece holders 5. When inserted into the housing 31, the locking teeth 73 are constrained and the risk of accidental removal is eliminated. In practice, the optician no longer needs to hold the nosepiece holder 5 when mounting the lens 4. This allows them to use both hands, saving time and reducing the risk of damage during mounting. Referring to Figure 8, the optician then performs a step of mounting a lens A in the opening 3 in order to lock the nosepiece holder 5 mounted in said opening 3. The mounting of the lens 4 is carried out in a manner similar to the prior art, which is convenient. The second lens 4 is mounted in the frame in a similar way. As illustrated in Figures 8 and 9, during the mounting of the glass 4, the glass 4 exerts a force EFF on the closing face 70, which forces the mounting face 72 against the wall 310 of the housing 31. As a result, the locking teeth 73 are constrained within the wall 310 of the housing 31 and, preferably, penetrate the material of said wall 310. A robust connection is thus established between the fixing part 7 and the housing 31. If the insert holder 5 is pulled backward, the rear face 732 of each locking tooth 73 prevents any movement. The mounting of an insert holder 5 is therefore robust over time. Thanks to this invention, a pair of custom-made glasses can be quickly and easily fitted by an optician. Furthermore, manufacturing is simplified for eyewear manufacturers. The cost of a frame is reduced while maximizing customization possibilities. Advantageously, this nose pad holder is composite, as it can withstand the pressure of the frame for secure attachment while also allowing for hooking. According to one aspect of the invention, plate holders according to the invention can be associated together (or combined) to form a nose bridge. The invention was presented for a main frame having openings with a peripheral edge formed in the main frame, but the invention also applies to a main frame in which the opening is formed partly by a tensioned cable, in particular, made of nylon.

Claims

Demands

1. Nose plate holder (5) for spectacle frames (1), the nose plate holder (5) comprising a fixing portion (7) configured to be mounted in a housing (31) for the eyeglass frame (1) along an insertion axis X oriented from back to front, the fastening part (7) comprising: a closing face (70) having an auxiliary groove (71) configured to cooperate with a lens (4) of the frame of glasses (1) in order to lock the plate holder (5) and a mounting face (72) comprising at least one tooth of projecting block (73) contiguous to be constrained against a wall (310) of the housing (31) during the assembly of the glass (4).

2. Insert holder (5) according to claim 1 in which the tooth of blockage (73) has a triangular section defining a front face {731) and a rear face (732).

3. Insert holder (5) according to claim 2 in which the front face (731) of the locking tooth (73) is inclined with respect to the axis insertion X at an angle (01) between 100° and 120°.

4. Insert holder (5) according to any one of claims 2 and 3 wherein the rear face (732) of the locking tooth (73) is inclined relative to the insertion axis X at an angle (02) between 85° and 95°.

5. Insert holder (5) according to any one of claims 1 to 4, wherein the the fastening part (7) has a cross-section, defined by report audit insertion axis (X), substantially rectangular with rounded edges.

6. Eyeglass frame (1) comprising a main frame (2) comprising a rear face intended to be turned towards the user and a front front opposite the rear face and comprising two openings (3) configured to receive two glasses (4) respectively, at least one opening (3) comprising an inner peripheral edge (30) suitable for cooperate with an outer peripheral edge of a glass (4), the edge pe- inner peripheral (30) of said opening (3) comprising at least one housing (31) in which a plate holder (5) is mounted according to one of of claims 1 to 5, the locking tooth (73) of the mounting face (72) of the fixing part (7) being in contact with a wall (310) of the housing (31), said plate holder (5) being configured to be locked in position by said glass (4) during the fitting of the glass (4) in said opening (3).

7. Eyeglass frame {1) according to claim 6, wherein said edge inner peripheral (30) of the opening (3) having a groove main (32), the auxiliary groove (71) of the closing face (70) is in line with the main groove (32).

8. Eyeglass frame (1) according to any one of claims 6 to 7, in which the fixing part (7) of the plate holder (5) and said housing (31) have complementary forms.

9. Pair of spectacles (10) comprising a frame (1) according to one of the claims indications 7 to 8 and at least one glass (4) mounted in an opening (3) and locking the said plate holder (5) in position, the locking tooth (73) of the plate holder (5) being constrained against the wall (310) of the housing (31) during the fitting of the glass (4).

10. Method of mounting at least one lens (4) in a frame of glasses (1) according to any one of claims 6 to 8, the method comprising: an insertion step, preferably from back to front, along the insertion axis (X) of the insert holder (5) in the housing (31) of the inner peripheral edge (30) of a opening (3), the locking tooth (73) of the mounting face (72) of the fixing part (7) being in contact with the wall (310) of the dwelling (31); and a step of mounting a glass (4) in said opening (3) in order to constrain the locking tooth (73) of the face of mounting (72) of the fixing part (7) against the wall (310) of the housing (31) in order to lock said plate holder (5) in position.