Glasses with magnetic hinge assembly

Abstract

Disclosed is an eyewear (200) comprising a front portion (210) and two temples (220) rotatably coupled to the front portion (210) so as to be rotatable between a first stable open position and a second stable closed position, two hinge assemblies (100) by which the temples (220) are rotatably coupled to the front portion (210), each of the hinge assemblies (100) comprises: at least four first magnets (110) applied to the front portion (210), the at least four first magnets (110) being spaced apart from one another and arranged to describe a circumference, the polarities of the free poles of the at least four first magnets (110) alternating according to any period, at least four second magnets (120) applied to the respective temple (220) opposite the at least four first magnets (110), the at least four second magnets (120) being spaced apart from each other and arranged to describe a circumference, the polarities of the free poles of the at least four second magnets (120) alternating according to any period, the free poles of the at least four first magnets (110) and the free poles of the corresponding at least four opposing second magnets (120) have opposite polarities so as to attract each other when the respective temple (220) is in the first stable open position and / or the second stable closed position.

Description

Technical Field

[0001] The present invention relates to glasses with a magnetic hinge assembly. Background Art

[0002] Glasses also mean mask glasses, such as ski mask glasses or work mask glasses and / or other known types of mask glasses.

[0003] As is well known, glasses include hinges that rotatably couple the temple arms to the front of the frame.

[0004] Today, there are different types of hinges for glasses, such as magnetic hinges.

[0005] Generally, the magnetic hinges available on the market include at least one first magnet coupled to the front of the frame and at least one second magnet coupled to the corresponding temple arm and having an opposite polarity with respect to the first magnet.

[0006] Such hinges allow for a safe and reliable rotatable connection to be formed between the front and the corresponding temple arm; in addition, these magnets ensure that in the case of breakage or damage, the hinge itself can be quickly and easily maintained, and in the case of a customizable frame, the corresponding temple arm can be replaced, for example, depending on the user's needs, temple arms having different forms, materials or colors can be selected and coupled to the front.

[0007] However, the disadvantage of such magnetic hinges is that the movement during temple arm rotation is not very smooth and is susceptible to severe wear. Summary of the Invention

[0008] The object of the present invention is to overcome the above disadvantages, and in particular to conceive glasses with a magnetic hinge assembly that has a smooth movement during temple arm rotation and suffers less wear than that suffered by the prior art.

[0009] These and other objects according to the present invention are achieved by manufacturing the glasses as set forth in claim 1.

[0010] Further features of the glasses are the object of the dependent claims. Brief Description of the Drawings

[0011] The features and advantages of the glasses according to the present invention will become more apparent from the following exemplary and non - restrictive description with reference to the accompanying schematic drawings, in which:

[0012] - Figure 1 is a perspective view of glasses with a magnetic hinge assembly according to a first embodiment of the present invention;

[0013] - Figure 2 is Figure 1Side view of the glasses when the temple is in the first stable open position;

[0014] - Figure 3 is a cross-sectional perspective view along the cross-sectional line III-III of the glasses of Figure 2 ;

[0015] - Figure 4 is Figure 1 a perspective view of the front part of the glasses of

[0016] - Figure 5 is Figure 1 a perspective view of the temple of the glasses of

[0017] - Figure 6 is Figure 1 a first exploded perspective view of the glasses of

[0018] - Figure 7 is a second exploded perspective view of the glasses according to the second embodiment of the present invention;

[0019] - Figure 8a is a third exploded perspective view of the glasses according to the third embodiment of the present invention;

[0020] - Figure 8b is Figure 8a a fourth exploded perspective view of the glasses of

[0021] - Figure 9 is a fifth perspective view of the front part of the glasses according to the fourth embodiment of the present invention;

[0022] - Figure 10 is Figure 9 a sixth perspective view of the temple of the glasses of

[0023] - Figure 11 is Figure 9 a seventh exploded perspective view of the glasses of

[0024] - Figure 12a 、 Figure 12b are two perspective views of the two fastening plates included in the glasses of Figure 9 ;

[0025] - Figure 13 、 Figure 14 are Figure 9 two partial perspective views of the glasses of, and for simplicity, the temples and the magnets attached to the temples are removed from the figures. Detailed Description

[0026] Referring to the accompanying drawings, glasses generally designated 200 are shown.

[0027] Such glasses 200 include a frame which in turn includes a front part 210 adapted to support two lenses and two temple pieces 220 adapted to allow a user to wear the glasses 200.

[0028] The temple pieces 220 are rotatably coupled to the front part 210 so as to be able to rotate between a first stable open position and a second stable closed position. In the first stable open position, the temple pieces 220 are open and the glasses 200 can be worn by the user. In the second stable closed position, the temple pieces 220 are closed and the glasses 200 cannot be worn by the user. The rotation of the temple pieces can be carried out both clockwise and counterclockwise.

[0029] Advantageously, the glasses 200 include two hinge assemblies generally designated by 100, and the temple pieces 220 are rotatably coupled to the front part 210 by means of the hinge assemblies.

[0030] Each hinge assembly 100 includes at least four first magnets 110 applied to the front part 210.

[0031] Such at least four first magnets 110 are spaced apart from each other and are arranged to describe a circumference.

[0032] In addition, the hinge assembly 100 further includes at least four second magnets 120 applied to the corresponding temple piece 220 and opposite to the at least four first magnets 110. Such at least four second magnets 120 are spaced apart from each other and are arranged to describe a circumference.

[0033] Each first magnet 110 has a first surface in contact with the front part 210 and a second surface opposite to the first surface. The first surface and the second surface have two magnetic polarities opposite to each other. The second surface will hereinafter be referred to as the free pole of the first magnet 110.

[0034] More specifically, at least four first magnets 110 have poles in contact with the front part 210 and free poles facing the corresponding temple piece 220. Each second magnet 120 has a first surface in contact with the corresponding temple piece 220 and a second surface opposite to the first surface. The first surface and the second surface have two magnetic polarities opposite to each other. The first surface will hereinafter be referred to as the pole of the second magnet 120, while the second surface will hereinafter be referred to as the free pole of the second magnet 120.

[0035] More specifically, at least four second magnets 120 have poles in contact with the corresponding temple piece 220 and free poles facing the front part 210.

[0036] In addition, the polarities of the free poles of the at least four first magnets 110 alternate according to an arbitrary period. Preferably, the period is 180°, so as to allow these poles to be coupled only in the state where the temple pieces are open and / or the temple pieces are closed.

[0037] Advantageously, relative to a conventional hinge whose axis of rotation is substantially perpendicular to the plane passing through the nose-ear support points, the glasses 200 according to the present invention include a hinge assembly 100 whose axis of rotation is substantially parallel to such a plane.

[0038] In Figure 7 In the second embodiment shown, the number of at least four first magnets 110 is equal to four; in this case, each first magnet 110 is interposed between magnets having free poles with the opposite sign to its own. More specifically, a first magnet 110 having a positive free pole is interposed between magnets 110 having a negative free pole, while a first magnet 110 having a negative free pole is interposed between magnets 110 having a positive free pole.

[0039] Furthermore, the polarities of the free poles of at least four second magnets 120 alternate according to an arbitrary period.

[0040] Still in the second embodiment, in the case where the number of at least four first magnets 110 is equal to four, the number of at least four second magnets 120 is also equal to four; in this case, each second magnet 120 is interposed between magnets 120 having free poles with the opposite sign to its own. More specifically, a second magnet 120 having a positive free pole is interposed between magnets 120 having a negative free pole, while a second magnet 120 having a negative free pole is interposed between magnets 120 having a positive free pole.

[0041] In Figures 1 to 6 and Figures 8a to 14 In the specific embodiment shown, the number of at least four first magnets 110 and at least four second magnets 120 is equal to eight respectively. In this case, in a preferred embodiment, each first magnet 110 is interposed between a first magnet 110 having a positive free pole and a first magnet 110 having a negative free pole; similarly, each second magnet 120 is interposed between a second magnet 120 having a positive free pole and a second magnet 120 having a negative free pole.

[0042] In another preferred embodiment, the eight first magnets 110 include two first main magnets 110 interposed between two strings of three first sub-magnets 110, wherein the polarities of the free poles of the first sub-magnets 110 are equal and opposite to the polarities of the free poles of the first main magnets 110. In this case, the eight second magnets 120 include two second main magnets 120 interposed between two strings of three second sub-magnets 120, wherein the polarities of the free poles of the second sub-magnets 120 are equal and opposite to the polarities of the free poles of the second main magnets 120. Furthermore, however, when the hinge assembly 100 is in one of the two stable positions, the polarities of the free poles of the second magnets 120 are opposite to the polarities of the opposing first magnets 110.

[0043] In another embodiment, the first magnets 110 are arranged successively with alternating polarities with respect to each other. In this case, the second magnets 120 are also arranged successively with alternating polarities with respect to each other. Moreover, however, when the hinge assembly 100 is in one of the two stable positions, the polarity of the free poles of the second magnets 120 is opposite to the polarity of the opposing first magnets 110.

[0044] Preferably, at least four first magnets 110 and at least four second magnets 120 can be applied to the front part 210 and the corresponding temple 220 respectively by any fastening means or method (e.g., glue or a double-sided adhesive layer).

[0045] Preferably, at least four first magnets 110 are fully received inside the first seat 130' obtained in the front part 210, and at least four second magnets 120 are fully received inside the second seat 130'' obtained in the temple 220.

[0046] In another embodiment not shown in the figures, at least four first magnets 110 are at least partially received inside the first seat 130' obtained in the front part 210, and at least four second magnets 120 are at least partially received inside the second seat 130'' obtained in the temple 220.

[0047] Such first seat 130' and second seat 130'' can extend in depth in the front part 210 and the corresponding temple 220 respectively, and the length of the extension section is equal to or higher than the thickness of the magnets 110, 120. In this case, in a preferred embodiment, at least four first magnets 110 do not protrude from the surface of the front part 210, and at least four second magnets 120 do not protrude from the surface of the corresponding temple 220, but are flush with the front part 210 and the corresponding temple 220 respectively.

[0048] In Figures 9 to 14 In the fourth embodiment shown, the magnets 110, 120 are recessed into the corresponding seats 130', 130'' of the front part 210 and the temple 220, and such seats 130', 130'' can be at least partially through seats.

[0049] Preferably, the first seat 130' is obtained on a first support applied to the front part 210, and the second seat 130'' is obtained on a second support applied to the corresponding temple 220. In this case, the first support and the second support are applied to the front part 210 and the corresponding temple 220 respectively by any fastening system (e.g., by gluing or welding).

[0050] In the embodiment shown in the drawings, the front portion 210 includes two first through holes 211 extending respectively towards the corresponding temple arms 220. In addition, the hinge assembly 100 includes a coupling pin 140 that passes through the corresponding first through holes 211 and is coupled to the temple arms 220 so as to form a rotatable coupling between the corresponding temple arms 220 and the front portion 210. In Figures 1 to 8b the embodiment shown, the corresponding temple arms 220 include blind holes 221 coaxial with the corresponding first through holes 211. In this case, the coupling pin 140 passes through the first through holes 211 and is received in the blind holes 221 so as to form a rotatable coupling between the corresponding temple arms 220 and the front portion 210. Thus, when transitioning from the first stable open position to the second stable closed position (or vice versa), the corresponding temple arms 220 can rotate about an axis passing through the first through holes 211 and the blind holes 221.

[0051] Advantageously, the hinge assembly 100 includes a covering element 150 that is applied to the front portion 210 so as to make the coupling pin 140 invisible from the outside.

[0052] Preferably, the coupling pin 140 can be formed in the form of a screw having a threaded rod end portion and a non-threaded cylindrical intermediate portion. In this case, the rod end portion is coupled to a corresponding threaded portion formed in the blind hole 221, while the cylindrical intermediate portion is included within the corresponding first through holes 211. In this way, when the corresponding temple arms 220 transition from the first stable open position to the second stable closed position (or vice versa), the corresponding temple arms 220 rotate integrally with the coupling pin 140 relative to the front portion 210.

[0053] Preferably, the coupling pin 140 is provided with at least one recess 143.

[0054] In addition, the hinge assembly 100 can include at least one coupling element 160 inserted into such at least one recess 143.

[0055] In Figures 1 to 8b the embodiment shown, the coupling pin 140 is a blind bushing, and such at least one recess 143 is obtained on the bottom wall of this blind bushing. In this case, on the bottom wall of the blind hole 221, there is an additional blind hole 221' having a diameter smaller than that of the blind hole 221, and this additional blind hole can be threaded or non-threaded. In this case, at least one coupling element 160 (such as a screw, for example Figure 7 、 Figure 8a 、 Figure 8bThe screw shown) is also provided with a threaded portion, and the at least one coupling element is received inside at least one recess 143 and engages in another blind hole 221'. For example, the threaded portion of the at least one coupling element 160 is arranged at the threaded portion of the another blind hole 221' such that the at least one coupling element 160 abuts against the wall of the at least one recess 143. Thus, when the temple 220 is transitioned from the first stable open position to the second stable closed position (or vice versa), the temple 220 can rotate integrally with the coupling pin 140 relative to the front portion 210. Therefore, in this case, the coupling pin 140 guides the rotation of the corresponding temple 220.

[0056] In Figures 1 to 8b the illustrated embodiment, the temple 220 includes a plurality of first protrusions 222, 222' extending towards the front portion 210; in this case, the front portion 210 and the coupling pin 140 include a plurality of corresponding first receiving seats 212, 141 which face the corresponding temple 220 and are adapted to receive such first protrusions 222, 222'. Preferably, when the corresponding temple 220 is in the first stable open position and / or the second stable closed position, the first protrusions 222, 222' are received in the corresponding first receiving seats 212, 141, and when the corresponding temple 220 is in an intermediate position between the first stable open position and the second stable closed position, the first protrusions 222, 222' are not received in the corresponding first receiving seats 212, 141, but contact the surfaces of the front portion 210 and the coupling pin 140 on which the first receiving seats 212, 141 are obtained, respectively.

[0057] In particular, in Figures 1 to 6 the first embodiment shown, the temple 220 includes a plurality of first protrusions 222 surrounding the blind hole 221, and another blind hole 221' is formed on the bottom surface of the blind hole 221.

[0058] Conversely, in Figure 7 , Figure 8a and Figure 8b the embodiment of, the temple 220 includes a plurality of first protrusions 222 surrounding the blind hole 221 and another first protrusion 222' extending from the bottom wall of the blind hole 221 and having another blind hole 221' at its top.

[0059] In Figures 9 to 14In the fourth embodiment shown, the hinge assembly 100 includes at least one corresponding fastening element 224 that integrally couples the corresponding temple 220 to the coupling pin 140. More specifically, the corresponding temple 220 includes at least one second through hole 223, and at least one fastening element 224 passes through such at least one second through hole 223 and the first through hole 211 and engages in at least one recess 143 to integrally couple the corresponding temple 220 to the coupling pin 140.

[0060] Thereby, the corresponding temple 220 can rotate integrally with the coupling pin 140 relative to the front part 210.

[0061] For example, the number of the second through holes 223, the recesses 143, and the fastening elements 224 is equal to two.

[0062] Still in Figures 9 to 14 In the fourth embodiment shown, the coupling pin 140 includes a plurality of second protrusions 144 protruding toward the corresponding temple 220; in this case, the corresponding temple 220 includes corresponding plurality of second receiving seats 225 for receiving the second protrusions 144. In this case, the coupling pin 140 rotates integrally with the corresponding temple 220 because the second protrusions 144 are inserted into the second receiving seats 225 even when the hinge assembly 100 is not in the first stable open position or the second stable closed position.

[0063] Still in the fourth embodiment, the hinge assembly 100 includes a first fastening plate 170 coupled to the front part 210 at the first magnet 110 and a second fastening plate 230 coupled to the corresponding temple 220 at the second magnet 120 to prevent the magnets 110, 120 from detaching from the corresponding first seat 130' and second seat 130''.

[0064] In other words, the first fastening plate 170 and the second fastening plate 230 face each other; in this case, the first magnet 110 is opposite to the second magnet 120 through the interposition of the first fastening plate 170 and the second fastening plate 230.

[0065] More specifically, the front part 210 and the temple 220 have corresponding fastening seats 180, 240; in this case, the first fastening plate 170 has a first fastening through hole 171 disposed at such a fastening seat 180 of the front part 210, while the second fastening plate 230 has a second fastening through hole 231 disposed at the fastening seat 240 of the corresponding temple 220. The first fastening plate 170 is integrally fastened to the front part 210 due to the first engaging element 172, while the second fastening plate 230 is integrally fastened to the corresponding temple 220 due to the second engaging element 232.

[0066] More specifically, the first engaging element 172 passes through the first fastening through-hole 171 and engages in the fastening seat portion 180 of the front portion 210, while the second engaging element 232 passes through the second fastening through-hole 231 and engages in the fastening seat portion 240 of the temple 220.

[0067] For example, the engaging elements 172, 232 can be formed in the form of screws having a first abutting portion that abuts against the corresponding fastening plate and a second threaded portion having a diameter smaller than that of the first abutting portion, the second threaded portion being coupled to the corresponding threaded portions formed in the fastening seat portions 180, 240. In addition, the first engaging element 172 is coupled to the first fastening plate 170 so as to be located radially outside the second fastening plate 230.

[0068] In addition, the first fastening plate 170 has two identification seat portions 190 that cooperate with the second engaging element 232 coupled to the second fastening plate 230 to identify the first stable open position and the second stable closed position. In fact, as can be observed in Figure 14 when the hinge assembly 100 is assembled and assumes one of the two stable positions described above, the second engaging element 232 is at least partially received in one of the two identification seat portions 190.

[0069] Preferably, the first fastening plate 170 and the second fastening plate 230 are made of a non-magnetic material (e.g., plastic or non-magnetic metal) to prevent unwanted deformation of the coupling magnetic field.

[0070] For example, in the Figure 14 embodiment, the two identification seat portions 190 can be through-seat portions and cross each other to form a through-opening in the form of a cross.

[0071] Preferably, the front portion 210 has a peripheral constraint edge 213 of the hinge region, wherein such peripheral constraint edge 213 is cam-shaped so as to force the temple 220 away from the front portion 210 when the hinge assembly 100 moves from one stable position to the other, and to allow proximity between the temple 220 and the front portion 210 when the hinge assembly 100 assumes one of the two stable positions.

[0072] In addition, the second fastening plate 230 has a plurality of first through-openings 233 and at least one second through-opening 234 that are respectively passed through by the second protrusion 144 and at least one fastening element 224.

[0073] Preferably, the coupling pin 140 includes a flange cover 142. The diameter of such flange cover 142 is larger than the diameter of the coupling pin 140.

[0074] In addition, in the fourth embodiment, the covering element 150 can have an engaging seat portion 151 for the coupling pin 140.

[0075] Advantageously, when the respective temple 220 is in the first stable open position and / or the second stable closed position, the free poles of at least four first magnets 110 and the free poles of the respective at least four opposing second magnets 120 have opposite polarities so as to attract each other.

[0076] More specifically, at least four first magnets 110 are aligned with at least four second magnets 120 such that when the respective temple 220 is in the first stable open position and / or the second stable closed position, the positive free poles of some magnets are placed at the negative free poles of some other magnets.

[0077] Alignment or the state of alignment means that all the free poles of the first magnets 110 are placed at the free poles of the opposing second magnets 120 with opposite signs.

[0078] More specifically, the positive free poles of at least four first magnets 110 are placed at the negative free poles of at least four opposing second magnets 120, and the negative free poles of at least four first magnets 110 are placed at the positive free poles of at least four opposing second magnets 120.

[0079] As is well known, free poles with opposite signs tend to attract each other, thereby exerting an attractive force that tends to bring the magnets 110, 120 closer until the distance between such free poles is minimized. In the glasses 200, the first magnets 110 and the second magnets 120 are stably applied to the front part 210 and the respective temples 220; in other words, the first magnets 110 and the second magnets 120 cannot be detached from the front part 210 and the respective temples 220 respectively under the action of the attractive force. Furthermore, when the respective temple 220 is in the first stable open position or the second stable closed position, each free pole of the first magnet 110 is placed at the minimum distance from the free pole of the opposing second magnet 120 with the opposite sign. Therefore, the free poles with opposite signs attract each other while being unable to get closer; thus, the attractive force prevents the respective temple 220 from spontaneously rotating relative to the front part 210, for example under the action of the weight of the temple 220 itself, because the rotation of the temple 220 would result in an increase in the minimum distance between the free poles with opposite signs.

[0080] Thus, in this way, the respective temple 220 is held in the first stable open position or the second stable closed position.

[0081] In the embodiment shown in the drawings, when the number of at least four first magnets 110 and the number of at least four second magnets 120 are each equal to four or eight, the stable positions are two positions with an angular distance of 180° from each other. This angular distance of 180° depends on the arrangement of the first magnets 110 and the second magnets 120 and the number of times the signs of the free poles in series of the first magnets 110 or the second magnets 120 alternate.

[0082] The number of times the signs alternate means the number of times a free pole of the first magnet 110 or the second magnet 120 is followed by a free pole of the first magnet 110 or the second magnet 120, respectively, with a sign opposite to its own.

[0083] The alignment state of the free poles coincides with the stable positions of the respective temple arms 220, and more specifically with the first stable open position or the second stable closed position.

[0084] When the respective temple arm 220 changes from the first stable open position to the second stable closed position (or vice versa), the free poles with opposite signs are not aligned.

[0085] Not aligned or the non-aligned state means that at least one free pole of the first magnet 110 is no longer placed at the free pole with the opposite sign of the opposing second magnet 120.

[0086] When these free poles are in the non-aligned state, at least one free pole is no longer placed at the minimum distance from the free pole with the opposite sign; thus, as described above, the attractive force between the poles with opposite signs tends to bring the first magnet 110 closer to the second magnet 120, and vice versa, until the distance between the free poles with opposite signs is minimized. In this way, when these free poles are in the non-aligned state, if the respective temple arm 220 is released by the user, it tends to rotate and return to the first stable open position or the second stable closed position where the distance between the free poles with opposite signs is minimized.

[0087] Furthermore, starting from the aligned state, when the angular offset of the respective temple arm 220 increases to a certain limit value, the number of non-aligned free poles also increases.

[0088] This limit value depends on the distance between the magnets 110, 120 and the next magnet in series.

[0089] Furthermore, continuing the above angular offset, when this angular offset of the respective temple arm 220 exceeds this limit value, these free poles start to align again; at this time, if the respective temple arm 220 makes a new angular offset that is still equal to the limit value, these free poles will become non-aligned again, and so on. This behavior is due to the fact that at least four first magnets 110 and at least four second magnets 120 each describe a circle or a closed line.

[0090] Thus, starting from the aligned state or from the completely unaligned state, for each angular offset of the respective temple 220 that is equal to the limit value, these free poles move to the aligned state or the completely unaligned state, respectively.

[0091] Completely unaligned or the completely unaligned state means that each free pole of the first magnet 110 is not placed at the free pole of the opposite second magnet 120 with the opposite sign.

[0092] More specifically, if the respective temple 220 is in the first stable open position, for each angular offset equal to the limit value, the temple first transitions to the completely unaligned state, then to the aligned state represented by the second stable closed position, then again to the completely unaligned state, and then returns to the first stable open position; if the respective temple is in the second stable closed position, for each angular offset equal to the limit value, the temple transitions to the completely unaligned state, then to the completely aligned state represented by the first stable open position, then again to the completely unaligned state, and then returns to the second stable closed position.

[0093] Preferably, the first magnets 110 are equally spaced from each other, and the second magnets 120 are equally spaced from each other.

[0094] Preferably, the limit value is 90°.

[0095] In the embodiment shown in the drawings, starting from the completely unaligned or aligned state, for each angular offset of the respective temple 220 that is equal to an angular distance of 180°, these free poles transition to the completely unaligned or aligned state again, respectively. In this case, for each angular offset of the respective temple 220 that is equal to an angular distance of 180°, the temple transitions from the first stable open position to the second stable closed position, and vice versa.

[0096] In the case where the number of at least four first magnets 110 and the number of at least four second magnets are equal to eight, if starting from the first stable open position or from the second stable closed position, the respective temple 220 makes an angular offset equal to a threshold value that is lower than the limit value, only the free poles in the adjacent free pole pairs with the same sign are in the unaligned state. At this time, when the respective temple 220 makes a further angular offset equal to the difference between the limit value and the threshold value, the completely unaligned state is achieved.

[0097] Preferably, the threshold value is 45°.

[0098] Furthermore, if the user releases the corresponding temple 220 when the free pole is in the misaligned state, this temple 220 returns to the first stable open position or the second stable closed position. More specifically, if the user releases the temple when the temple 220 is in an angular neighborhood at an angular distance equal to 180° with respect to the first stable open position, the temple 220 returns to this first stable open position; if the user releases the temple when the temple 220 is in an angular neighborhood at an angular distance equal to 180° with respect to the second stable closed position, the temple 220 returns to this second stable closed position. This behavior is due to the fact that, under the action of the attraction force as described above, the corresponding temple 220 rotates and returns to the first stable open position or the second stable closed position.

[0099] In the fourth embodiment, when the hinge assembly 100 transitions from one stable position to the other stable position among the two stable positions, the first magnet 110 is forced to face the second magnet 120 with the same polarity; thus, a magnetic repulsive force is generated that causes the temple 220 to move away from the front part 210. Therefore, the second engagement element 232 disengages from the identification seat portion 190 corresponding to the stable starting position and is then brought to the identification seat portion 190 of the stable completion position where the first magnet 110 faces the second magnet 120 with the opposite polarity.

[0100] In the case where there is also a cam-shaped peripheral constraint edge 213, due to the combined action of the magnetic repulsive force and the thrust determined by the contour of the peripheral constraint edge 213, a movement of the front part 210 away from the temple 220 occurs.

[0101] The features of the glasses that are the object of the present invention are clear from the description made, and the related advantages are clear.

[0102] Finally, it is clear that the glasses thus conceived are susceptible to numerous modifications and variations, all of which fall within the scope of the present invention; furthermore, all details can be replaced by technically equivalent elements. In practice, depending on the technical requirements, the materials used and the size can be any materials and sizes.

Claims

1. A pair of glasses (200), comprising: - A front part (210) and two temple pieces (220) rotatably coupled to the front part (210) so as to be rotatable between a first stable open position and a second stable closed position. - Two hinge assemblies (100) through which the temple pieces (220) are rotatably coupled to the front part (210), each of the hinge assemblies (100) including: - At least four first magnets (110) applied to the front part (210), the at least four first magnets (110) being spaced apart from each other and arranged to describe a circumference, the polarities of the free poles of the at least four first magnets (110) alternating according to an arbitrary period. - At least four second magnets (120) applied to the corresponding temple piece (220) opposite to the at least four first magnets (110), the at least four second magnets (120) being spaced apart from each other and arranged to describe a circumference, the polarities of the free poles of the at least four second magnets (120) alternating according to an arbitrary period. Wherein, when the corresponding temple piece (220) is in the first stable open position and / or the second stable closed position, the free poles of the at least four first magnets (110) and the free poles of the corresponding at least four opposite second magnets (120) have opposite polarities so as to attract each other.

2. The pair of glasses (200) according to claim 1, wherein, The number of the at least four first magnets (110) and the number of the at least four second magnets (120) are each equal to eight, and each first magnet (110) is interposed between a first magnet (110) having a positive free pole and a first magnet (110) having a negative free pole, and each second magnet (120) is interposed between a second magnet (120) having a positive free pole and a second magnet (120) having a negative free pole.

3. The pair of glasses (200) according to claim 1, wherein, The number of the at least four first magnets (110) and the number of the at least four second magnets (120) are each equal to eight, the eight first magnets (110) include two first main magnets (110) interposed between two strings of three first sub-magnets (110), wherein the polarities of the free poles of the first sub-magnets (110) are equal and opposite to the polarities of the free poles of the first main magnets (110), and the eight second magnets (120) include two second main magnets (120) interposed between two strings of three second sub-magnets (120), wherein the polarities of the free poles of the second sub-magnets (120) are equal and opposite to the polarities of the free poles of the second main magnets (120).

4. The pair of glasses (200) according to any one of the preceding claims, wherein, The at least four first magnets (110) are at least partially received in a first seat (130') obtained in the front part (210), and the at least four second magnets (120) are at least partially received in a second seat (130'') obtained in the temple piece (220).

5. The pair of glasses (200) according to any one of claims 1 to 3, wherein, The at least four first magnets (110) are completely received within a first seat (130') obtained in the front part (210), and the at least four second magnets (120) are completely received within a second seat (130'') obtained in the temple (220).

6. The pair of glasses (200) according to claim 4 or 5, wherein, The first seat (130') is obtained on a first support applied to the front part (210), and the second seat (130'') is obtained on a second support applied to the corresponding temple (220).

7. The pair of glasses (200) according to one or more of the preceding claims, wherein, The front part (210) includes two first through-holes (211) respectively extending towards the corresponding temple (220), and the hinge assembly (100) includes a coupling pin (140) that passes through the corresponding first through-hole (211) and is coupled to the temple (220) so as to form a rotatable coupling between the corresponding temple (220) and the front part (210).

8. The pair of glasses (200) according to claim 7, wherein, The temple (220) includes a plurality of first protrusions (222, 222') extending towards the front part (210), and the front part (210) and the coupling pin (140) include a plurality of corresponding first receiving seats (212, 141) facing the corresponding temple (220), and when the corresponding temple (220) is in the first stable open position and / or the second stable closed position, the first protrusions (222, 222') are received within the corresponding first receiving seats (212, 141).

9. The pair of glasses (200) according to claim 7, wherein, The hinge assembly (100) includes a first fastening plate (170) coupled to the front part (210) at the first magnet (110) and a second fastening plate (230) coupled to the corresponding temple (220) at the second magnet (120) to prevent the magnets (110, 120) from detaching from the corresponding first seat (130') and second seat (130''), the hinge assembly (100) includes at least one corresponding fastening element (224) that integrally couples the corresponding temple (220) to the coupling pin (140), the first fastening plate (170) is integrally fastened to the front part (210) due to a first engaging element (172), the second fastening plate (230) is integrally fastened to the corresponding temple (220) due to a second engaging element (232), and the first fastening plate (170) has two identification seats (190) that cooperate with the second engaging element (232) coupled to the second fastening plate (230) to identify the first stable open position and the second stable closed position.

10. The pair of glasses (200) according to claim 9, wherein, The coupling pin (140) includes a plurality of second protrusions (144) protruding towards the corresponding temple (220), and the corresponding temple (220) includes a plurality of corresponding second receiving seats (225) that receive the second protrusions (144).

11. The pair of glasses (200) according to claim 9 or 10, wherein, The front part (210) has a peripheral restraint edge (213) of the hinge region, wherein such a peripheral restraint edge (213) is cam-shaped so as to force the temple (220) away from the front part (210) when the hinge assembly (100) moves from one stable position to another stable position, and to allow proximity between the temple (220) and the front part (210) when the hinge assembly (100) assumes one of the two stable positions.

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