Hinge assembly for eyeglasses and eyeglasses comprising such hinge assembly

Abstract

A hinge assembly (100) for eyeglasses comprises: a support plate (110) comprising a first cantilevered portion (113) and a second cantilevered portion (114), each having a first through hole (115) and a second through hole (116); a support body (130) rotatably coupled to the support plate (110), the support body (130) comprising a third through hole (132), a groove-shaped through hole (133), and at least one accommodating chamber (138); a first arm element (140) and a second arm element (150) having respective first perforated end portions (141, 151) provided at the first and second through-holes (115, 116), respectively, and respective second perforated end portions (142, 152) received at a third through-hole (132), the first coupling pin (136) traversing the third through-hole (132); a third arm element (160) and a fourth arm element (170) having a respective third perforated end portion (161, 171) rotatably coupled to the first perforated end portion (141, 151), respectively, and a respective fourth perforated end portion (162, 172) received at a groove-shaped through hole (133), the second coupling pin (137) traversing the groove-shaped through hole (133); and at least one elastic element (139) accommodated in the at least one accommodating chamber (138).

Description

Technical Field

[0001] The present invention relates to a hinge assembly for eyeglasses, particularly but not exclusively employable in "smart" eyeglasses.

[0002] The invention also relates to spectacles comprising such a hinge assembly. Background Art

[0003] Although such hinge assemblies may be used in all types of glasses, for ease of discussion, only "smart" glasses will be focused on for exemplary and non-limiting purposes.

[0004] As is known, "smart" glasses, also called smart glasses or virtual glasses or digital glasses, are a pair of glasses that include an electronic device suitable for operating as a computer, which is able to support the activities performed by the user who wears them, both in the daily and private sphere, as well as in the work and business sphere or in any other specific field.

[0005] The "smart" glasses currently in use allow the desired information and / or objects to be displayed on the lenses, or to interact with the glasses themselves using voice commands, thus saving time and economic costs in many operations and also allowing the user to work more safely with his hands free.

[0006] In more detail, the "smart" glasses currently available on the market consist of electronic devices and software that can play video or audio, movies, operate computer applications, and recognize natural language, shapes and objects arranged in the surrounding environment.

[0007] "Smart" glasses are provided with a display device, such as for example a display, typically integrated in the lenses of the frame for the glasses or arranged on the lenses, and an electronic processing and control unit, such as for example a controller or a battery, typically integrated in the frame for the glasses or in their temples.

[0008] Therefore, it is necessary to electrically connect the front part of the frame for glasses, where the lenses are arranged, to the electronic components located on the temples of the frame itself. "Smart" glasses are generally provided with a common hinge and a cable passing therethrough. However, in a common hinge, during the rotation of the temple relative to the frame for glasses to transition from an open operating position to a closed position, the cable may bend excessively and deteriorate, even break, or change its shape and / or size beyond its elastic limit under the stress applied by the hinge itself.

[0009] It is well known that there are "smart" glasses on the market that are provided with a bistable hinge.

[0010] The bistability of the hinge allows the temples of a frame for eyeglasses to remain stationary and stable in their open or closed operating position, thereby preventing them from moving accidentally and against the will of the user, causing discomfort to the user.

[0011] For example, document DE102020210683B3 discloses a bistable hinge for a frame of glasses, which is composed of a first joint area and a second joint area and has a recess, the first joint area is configured to connect the hinge to the front of the frame for glasses and define (detect) a first joint axis, the second joint area is configured to connect the hinge to the temple of the frame for glasses and define a second joint axis, the recess is perpendicular to the first joint axis and the second joint axis, and acts as a guide to accommodate a cable connecting the front of the frame for glasses to the temple.

[0012] However, such hinges do not allow reaching a further flexible over-travel open operating position, called a "super-flexed" operating position, in which the angle formed between the temple and the front of the frame for the eyeglasses when the temple is opened is greater than 90 degrees.

[0013] The "super-flexed" operating position allows the user to perform the wearing operation more easily, simply because the flexible over-travel of the temple is opened, and it is more comfortable when the user wears such glasses.

[0014] A hinge that provides for reaching a "super-flex" operating position will hereinafter be referred to as flexible.

[0015] The bistable and flexible hinge also allows for the accommodation of flexible cables for data communication and / or power between the front portion and the temples, preventing the flexible cables from being damaged or broken under the stress of the hinge itself when the frame for the glasses is transformed from an open operating configuration to a closed operating configuration or a "super-flex" configuration, or vice versa when the frame for the glasses is transformed from a closed operating configuration or a "super-flex" configuration to an open operating configuration. Summary of the invention

[0016] An object of the present invention is to overcome the above-mentioned drawbacks and in particular to devise a hinge assembly for spectacles which is bistable and at the same time "superflexible".

[0017] Another object of the present invention is to design a bistable and at the same time "super-flexible" hinge which allows a flexible cable to be housed therein, preventing the hinge from exerting excessive stress on the cable itself which could damage or break the cable.

[0018] These and other objects are achieved according to the present invention by making a hinge assembly for spectacles as set forth in claim 1 .

[0019] Further features of the hinge assembly for spectacles are the subject matter of the dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The features and advantages of the hinge assembly for spectacles according to the invention will become more apparent from the following exemplary and non-limiting description with reference to the schematic drawings, in which:

[0021] Figure 1a is a first perspective view of a hinge assembly for eyeglasses according to the present invention when the hinge assembly is in a first stable open position;

[0022] Figure 1b yes Figure 1a A second perspective view of a hinge assembly for eyeglasses;

[0023] Figure 1c yes Figure 1a A first front view of a hinge assembly for eyeglasses taken from a space sandwiched between the temple and the front of the eyeglasses;

[0024] Figure 2a , Figure 2b , Figure 2c , Figure 2d , Figure 2e are respectively along Figure 1c Five cross-sectional views of the hinge assembly for glasses along lines IIa-IIa, IIb-IIb, IIc-IIc, IId-IId, and IIe-IIe;

[0025] Figure 3a is a third perspective view of the hinge assembly for eyeglasses according to the present invention when the hinge assembly is in an intermediate position between the first stable open position and the second stable closed position;

[0026] Figure 3b yes Figure 3a A fourth perspective view of a hinge assembly for eyeglasses;

[0027] Figure 3c yes Figure 3a A second front view of the hinge assembly for eyeglasses taken from the space sandwiched between the temple and the front portion;

[0028] Figure 4a , Figure 4b , Figure 4c , Figure 4d , Figure 4e are respectively along Figure 3c Five cross-sectional views of the hinge assembly for glasses along lines IVa-IVa, IVb-IVb, IVc-IVc, IVd-IVd, and IVe-IVe;

[0029] Figure 5ais a fifth perspective view of the hinge assembly for spectacles according to the present invention when the hinge assembly is in a second stable closed position;

[0030] Figure 5b yes Figure 5a A sixth perspective view of a hinge assembly for eyeglasses;

[0031] Figure 5c yes Figure 5a A third front view of the hinge assembly for eyeglasses taken from the space sandwiched between the temple and the front portion;

[0032] Figure 6a , Figure 6b , Figure 6c , Figure 6d , Figure 6e are respectively along Figure 5c Five cross-sectional views of the hinge assembly for glasses along lines VIa-VIa, VIb-VIb, VIc-VIc, VId-VId, and VIe-VIe;

[0033] Figure 7a is a seventh perspective view of the hinge assembly for glasses according to the present invention when the hinge assembly is in a third unstable over-travel open position;

[0034] Figure 7b yes Figure 7a An eighth perspective view of a hinge assembly for eyeglasses;

[0035] Figure 7c yes Figure 7a A fourth front view of the hinge assembly for eyeglasses taken from the space sandwiched between the temple and the front portion;

[0036] Figure 8a , Figure 8b , Figure 8c , Figure 8d , Figure 8e are respectively along Figure 7c five cross-sectional views of a hinge assembly for glasses along lines VIIIa-VIIIa, VIIIb-VIIIb, VIIIc-VIIIc, VIIId-VIIId, and VIIIe-VIIIe;

[0037] Fig. 9 is a ninth exploded perspective view of a hinge assembly for glasses according to the present invention;

[0038] Fig.10a and Fig.10b 2 are two partial stereoscopic schematic diagrams of the glasses according to the present invention. DETAILED DESCRIPTION

[0039] Referring to the drawings, there is shown a hinge assembly, generally designated 100, for eyeglasses.

[0040] The hinge assembly 100 for glasses can be advantageously installed in a pair of glasses 300. Such glasses 300 include a frame 310, two hinge assemblies 100 for glasses, the frame 310 further including a front portion 311 suitable for carrying two lenses and two temples 312 suitable for allowing a user to wear the glasses 300, each of the two hinge assemblies 100 for glasses connects the corresponding temple 312 to the front portion 311.

[0041] In a particular embodiment, the glasses 300 are of the “smart” type. In this case, the glasses 300 also comprise an electrical cable 220, preferably flexible, adapted to electrically connect the electrical and / or electronic devices mounted in the front portion 311 and the temples 312 to each other.

[0042] In the present disclosure, for simplicity and clarity of explanation, reference will be made to a Cartesian axis system xyz depicted in the accompanying drawings, which includes a transverse axis x, a longitudinal axis y and a vertical axis z, and to Fig. 9 . Orientation of hinge assembly 100 for eyeglasses as illustrated in FIG.

[0043] The hinge assembly 100 for eyeglasses comprises a support plate 110, which is provided with a substantially flat first face 111 and a substantially flat second face 112 opposite and parallel to the first face. In particular, the first face 111 is intended to be applied to the front portion 311 of the frame 310. In addition, the support plate 110 comprises a first cantilever portion 113 and a second cantilever portion 114 which are parallel and opposite to each other, and the first cantilever portion 113 and the second cantilever portion 114 extend from the second face 112 in a direction substantially perpendicular to the second face 112, i.e., in a direction substantially parallel to the transverse axis x. In more detail, the cantilever portions 113, 114 have a first through hole 115 and a second through hole 116 which are opposite and aligned to each other along a direction substantially parallel to the vertical axis z.

[0044] The two cantilever parts 113 , 114 delimit between them a free space which forms a receiving seat 117 .

[0045] The hinge assembly 100 for glasses further comprises a support body 130 intended to be applied to the temple 312. In particular, the support body 130 has a box-like shape and a substantially flat first face 131 intended to be fixed to the temple 312.

[0046] Advantageously, the support body 130 is rotatably connected to the support plate 110 so that the hinge assembly 100 for the glasses can adopt a first stable open position, corresponding to a position in which the temples 312 of the glasses 300 are open and the glasses 300 can be worn; a second stable closed position, corresponding to a position in which the temples 312 of the glasses 300 are closed and the glasses 300 cannot be worn; and a third unstable over-travel open position in which the temples 312 are opened beyond the first stable open position.

[0047] The support body 130 includes a third through hole 132 and a slot-shaped through hole 133. The third through hole 132 and the slot-shaped through hole 133 have axes that are parallel to each other and substantially parallel to the vertical axis z.

[0048] Advantageously, the support body 130 and the support plate 110 comprise respective interaction elements 118 , 119 , 134 , 135 adapted to guide the support body 130 in rotation relative to the support plate 110 between a first stable open position and a second stable closed position.

[0049] Preferably, the interaction element 118, 119, 134, 135 comprises a first guide groove 118 made on the first cantilever portion 113 and a second guide groove 119 made on the second cantilever portion 114, the shapes of the first guide groove 118 and the second guide groove 119 presenting arc segments of a circle.

[0050] Each of such guide grooves 118 , 119 comprises a first end-of-stroke abutment 120 , 120 ′ and a second end-of-stroke abutment 121 , 121 ′, respectively.

[0051] Preferably, the guide grooves 118 , 119 are cam-like and are arranged at peripheral ends of the cantilevered portions 113 , 114 around the first through hole 115 and the second through hole 116 , respectively.

[0052] The interaction elements 118, 119, 134, 135 also include a first protrusion 134 and a second protrusion 135 similar to a stop roller, which are made on the support body 130 and are respectively placed in the first guide groove 118 and the second guide groove 119, and are suitable for sliding between the first end-stroke abutment 120, 120' and the second end-stroke abutment 121, 121' in the first guide groove 118 and the second guide groove 119 when the support body 130 rotates relative to the support plate 110 around the axis of the first through hole 115 and the second through hole 116 passing through the cantilever parts 113, 114.

[0053] In more detail, when the hinge assembly 100 for glasses is in the first stable open position, the first protrusion 134 and the second protrusion 135 are in contact and abut against the first end-stroke abutment portions 120, 120' of the first guide groove 118 and the second guide groove 119, respectively; when the hinge assembly 100 for glasses is in the second stable closed position, the first protrusion 134 and the second protrusion 135 are in contact and abut against the second end-stroke abutment portions 121, 121' of the first guide groove 118 and the second guide groove 119, respectively.

[0054] When the hinge assembly 100 for glasses is transformed from a first stable open position to a second stable closed position, the first protrusion 134 and the second protrusion 135 slide from the first end-stroke abutment 120, 120' to the second end-stroke abutment 121, 121' along the first guide groove 118 and the second guide groove 119, respectively; during this step, the support body 130 performs a first rotational movement around the axis of the first through hole 115 and the second through hole 116 of the cantilever portion 113, 114 of the support plate 110, and the first rotational movement can be quantified by a determined first angular offset.

[0055] Vice versa, when the hinge assembly 100 for glasses transitions from the second stable closed position to the first stable open position, the first protrusion 134 and the second protrusion 135 slide from the second end-stroke abutment 121, 121' to the first end-stroke abutment 120, 120' along the first guide groove 118 and the second guide groove 119, respectively; during this step, the support body 130 performs a second rotational movement around the axis of the first through hole 115 and the second through hole 116 of the cantilever portion 113, 114 passing through the support plate 110 in a direction opposite to the direction previously described, and the second rotational movement can be quantified by a determined second angular offset that is equal to and opposite to the first angular offset of the first rotational movement.

[0056] The hinge assembly 100 for eyeglasses further includes a first arm member 140 and a second arm member 150. The first arm member 140 and the second arm member 150 have first perforated end portions 141, 151 and second perforated end portions 142, 152, respectively. The first perforated end portion 141 of the first arm member 140 is arranged at the first through hole 115 of the first cantilever portion 113. The first perforated end portion 151 of the second arm member 150 is arranged at the second through hole 116 of the second cantilever portion 114.

[0057] The hinge assembly 100 for glasses also includes a first connecting element 122 and a second connecting element 123, which respectively at least partially cross the first through hole 115 and the second through hole 116 of the cantilever parts 113 and 114 of the supporting plate 110, and are connected to the first perforated end parts 141 and 151 of the first arm element 140 and the second arm element 150.

[0058] Preferably, the first perforated end portion 141 , 151 has a threaded hole.

[0059] In this case, the first coupling element 122 and the second coupling element 123 have corresponding threaded end portions 124 , 125 which are adapted to couple with threaded holes of the first perforated end portions 141 , 151 .

[0060] The first and second coupling elements 122 , 123 also have respective cylindrical portions 126 , 127 adapted to allow the coupling elements 122 , 123 to rotate within the first and second through holes 115 , 116 .

[0061] The first coupling element 122 and the second coupling element 123 are made into, for example, a screw rod shape having a threaded terminal portion of the rod and a middle non-threaded cylindrical portion.

[0062] The second perforated end portions 142 , 152 of the first arm member 140 and the second arm member 150 are received in the support body 130 so as to be coaxial with respect to the third through hole 132 .

[0063] The hinge assembly 100 for eyeglasses further includes a first coupling pin 136 that traverses the third through hole 132 of the support body 130 and the second perforated end portions 142 , 152 of the first and second arm members 140 , 150 .

[0064] The second perforated end portion 142 , 152 is free to rotate relative to the first coupling pin 136 .

[0065] The hinge assembly 100 for eyeglasses further comprises a third arm member 160 and a fourth arm member 170. The third arm member 160 and the fourth arm member 170 have third perforated end portions 161, 171 and fourth perforated end portions 162, 172, respectively.

[0066] The third perforated end portion 161, 171 is rotatably coupled to the first perforated end portion 141, 151 of the first arm element 140 and the second arm element 150, respectively. Preferably, the first perforated end portion 141, 151 has a cylindrical delimiting wall 143, 153 around its hole, which protrudes a certain length beyond the surface of the first cantilever portion 113 and the second cantilever portion 114, respectively; in this case, the third perforated end portion 161, 171 is placed on the first perforated end portion 141, 151 so that the corresponding holes are coaxial and the cylindrical delimiting wall 143, 153 passes through the corresponding hole of the third perforated end portion 161, 171. Therefore, the third arm element 160 is free to rotate relative to the first arm element 140 around the axis of the first perforated end portion 141 of the first arm element 140 and the hole of the third perforated end portion 161 of the third arm element 160; similarly, the fourth arm element 170 is free to rotate relative to the second arm element 150 around the axis of the first perforated end portion 151 of the second arm element 150 and the hole of the third perforated end portion 171 of the fourth arm element 170.

[0067] The fourth perforated end portions 162 , 172 of the third arm element 160 and the fourth arm element 170 are received in the support body 130 at the slot-shaped through-hole 133 .

[0068] In addition, the hinge assembly 100 for glasses includes a second coupling pin 137, which crosses the slotted through hole 133 of the support body 130 and the fourth perforated end portions 162, 172 of the third arm member 160 and the fourth arm member 170, respectively. The fourth perforated end portions 162, 172 are free to rotate relative to the second coupling pin 137.

[0069] The first coupling pin 136 allows the support body 130 to rotate, while the second coupling pin 137 controls the translation and thus opening of the temple 312 in the third unstable over-travel open position.

[0070] The supporting body 130 further includes at least one accommodating chamber 138 , which is open to the outside and communicates with the slot-shaped through hole 133 .

[0071] Preferably, there may be more than one at least one housing chamber 138. In a particular embodiment, the support body 130 comprises two of said housing chambers 138, which are parallel to each other and arranged successively along the vertical axis z.

[0072] The hinge assembly 100 for glasses further includes at least one elastic element 139 accommodated in at least one accommodation chamber 138. In more detail, at least one elastic element 139 contacts the bottom wall of at least one accommodation chamber 138 on one side and contacts the second coupling pin 137 on the other side.

[0073] Preferably, at least one elastic element 139 may be more than one, and in particular may be equal in number to the number of the accommodation chambers 138. In a specific embodiment, such as the embodiment illustrated in the drawings, at least one elastic element 139 is two springs, each of which is accommodated in a corresponding accommodation chamber 138.

[0074] When the hinge assembly 100 for eyeglasses is in the first stable open position, it can be transformed into the third unstable over-travel open position, pushing the support body 130 to rotate in the opposite direction to the second stable closed position. Therefore, in fact, the support body 130 abuts the second face 112 of the support plate 110. The support body 130 is forced to rotate, and the support body 130 is forced to rotate around the axis passing through the third through hole 132, and no longer around the axis passing through the first through hole 115 and the second through hole 116. In this case, the first protrusion 134 and the second protrusion 135 are transformed from a state corresponding to the first stable open position, in which the first protrusion 134 and the second protrusion 135 contact the first end-travel abutment portion 120, 120', to a state corresponding to the third unstable over-travel open position, in which the first protrusion 134 and the second protrusion 135 do not contact and are respectively outside the first guide groove 118 and the second guide groove 119.

[0075] Still in the transition from the first stable open position to the third unstable over-travel open position, the second coupling pin 137 slides in the slotted through hole 133 to the first end stroke end 133′ defining the third unstable over-travel open position. As a result, the second coupling pin 137 compresses at least one elastic element 139 accommodated in at least one accommodating chamber 138; therefore, once the support body 130 is released, due to the elastic return force of the at least one elastic element 139, the hinge assembly 100 for glasses returns from the third unstable over-travel open position to the first stable open position, and the elastic element 139 pushes the second coupling pin 137 by becoming longer, causing the second coupling pin 137 to slide in the slotted through hole 133 toward the second end stroke end 133″ opposite to the first end stroke end 133′.

[0076] In a particular embodiment of the glasses 300 being of the “smart” type, the hinge assembly 100 for glasses further comprises a shielding and guiding body 180 for an electrical cable 220 extending along the axis z between a first end 181 and a second end 182. This shielding and guiding body 180 for the electrical cable 220 is sandwiched between the two cantilever parts 113, 114 in the receiving seat 117, so that the first end 181 faces the first cantilever part 113 and the second end 182 faces the second cantilever part 114.

[0077] In this case, the first perforated end portion 141 of the first arm element 140 is sandwiched between the first end 181 of the shielding and guiding body 180 for the cable line 220 and the first cantilever portion 113. The first perforated end portion 151 of the second arm element 150 is sandwiched between the second end 182 of the shielding and guiding body 180 for the cable line 220 and the second cantilever portion 114.

[0078] Preferably, the shielding and guiding body 180 for the electric cable 220 comprises a first resting portion 183 and a second resting portion 184 spaced apart from each other extending in length between a first end 181 and a second end 182, and at least one bridging element 185 connecting these resting portions 183, 184 to each other. Therefore, the two resting portions 183, 184 face each other and define a free gap between them.

[0079] Preferably, the rest portions 183 , 184 have two peripheral stop walls 186 , 187 which project beyond the first end 181 and the second end 182 in a direction substantially parallel to the vertical axis z, making two housing seats for the first perforated end portions 141 , 151 .

[0080] The shielding and guiding body 180 for the cable 220 cannot be separated from the receiving seat 117 because its movement in the vertical direction z is limited by the presence of the first perforated end portions 141, 151 and the third perforated end portions 161, 171, and in the transverse plane xy, its movement is limited by the interference between the peripheral stop walls 186, 187 and the corresponding first perforated end portions 141, 151 and the third perforated end portions 161, 171.

[0081] Instead, the shielding and guiding body 180 for the electrical cable 220 is freely rotatable about an axis passing through the first through hole 115 and the second through hole 116 .

[0082] Preferably, the support plate 110 comprises two side walls 128 , 129 connecting the first cantilevered portion 113 to the second cantilevered portion 114 .

[0083] Preferably, the support plate 110 further comprises an opening 190 which is positioned between the first cantilever portion 113 and the second cantilever portion 114 along the vertical direction z and between the two side walls 128 , 129 along the longitudinal direction y.

[0084] The hinge assembly 100 for eyeglasses further comprises a covering element 230 which can be coupled to the support body 130 or made in one piece with such support body 130. In any case, the covering element 230 is integral with the support body 130.

[0085] Advantageously, the support body 130 comprises at least one anchoring protrusion 231 suitable for being fixed to the temple 312 of the spectacles 300. In detail, the temple 312 is sandwiched between the at least one anchoring protrusion 231 of the support body 130 and the covering element 230.

[0086] In detail, the electrical cable 220 from the front portion 311 of the glasses 300 traverses the opening 190 of the support plate 110 and the gap between the rest portions 183 , 184 , and is engaged to the engagement portion 232 of the cover member 230 .

[0087] When the hinge assembly 100 for glasses is in the first stable open position, at least one bridging element 185 of the shielding and guiding body 180 for the cable 220 contacts and abuts against the first side wall 128 of the support plate 110; in addition, the cable 220 contacts and abuts against the surface of the first resting portion 183 of the shielding and guiding body 180 for the cable 220.

[0088] When the hinge assembly 100 for glasses is in the second stable closed position, at least one bridging element 185 of the shielding and guiding body 180 for the cable 220 contacts and abuts against the second side wall 129 of the support plate 110; in addition, the cable 220 contacts and abuts against the surface of the second rest portion 184 of the shielding and guiding body 180 for the cable 220.

[0089] When the hinge assembly 100 for glasses is transformed from the first stable open position to the second stable closed position, the cable 220 is pulled by the covering element 230 to rotate, which causes the cable 220 to separate from the first resting portion 183 until it contacts the second resting portion 184. At this time, the cable 220 pulls the shielding and guiding body 180 for the cable 220 to rotate, and at least one bridging element 185 is separated from the first side wall 128 and rotates toward the second side wall 129 of the support plate 110 together with the shielding and guiding body 180 for the cable 220. During the initial step of the rotation of the support body 130, the shielding and guiding body 180 for the cable 220 does not rotate until the cable 220 abuts on the second resting portion 184. The shielding and guiding body 180 for the cable 220 is thus rotated relative to the support body 130 with a first angle delay.

[0090] During the final stage of the rotation of the support body 130, the shielding and guiding body 180 for the cable 220 does not rotate because at least one bridging element 185 abuts against the second side wall 129. The support body 130 keeps rotating until the protrusions 134, 135 reach the respective second end-of-travel abutments 121, 121', thereby determining a second angular delay of the shielding and guiding body 180 for the cable 220 relative to the support body 130.

[0091] Preferably, the first angular delay is between 1° and 45°.

[0092] Preferably, the second angular delay is between 1° and 45°.

[0093] Preferably, the first angular delay is substantially equal to the second angular delay.

[0094] In the transition from the first stable open position to the second stable closed position, the electrical cable 220 is not subjected to the first angular offset but to a third angular offset obtained by subtracting the first angular delay and the second angular delay from the first angular offset.

[0095] Preferably, as can be observed in the figures, the third angular offset is 45 degrees.

[0096] When the hinge assembly 100 for glasses is transformed from the second stable closed position to the first stable open position, the cable 220 is pulled and rotated by the covering element 230, which causes the cable 220 to separate from the second resting portion 184 until it contacts the first resting portion 183. At this time, the cable 220 pulls the shielding and guiding body 180 for the cable 220 to rotate, and at least one bridging element 185 is separated from the second side wall 129 and rotates toward the first side wall 128 of the support plate 110 together with the shielding and guiding body 180 for the cable 220.

[0097] Therefore, during the initial stage of the rotation of the support body 130, the shielding and guiding body 180 for the cable line 220 rotates with a second angular delay relative to the support body 130. During the terminal stage of the rotation of the support body 130, the shielding and guiding body 180 for the cable line 220 does not rotate because at least one bridging element 185 abuts against the first side wall 128, but the support body 130 keeps rotating until the protrusions 134, 135 reach the corresponding first end-of-stroke abutment 120, 120', determining the first angular delay of the shielding and guiding body 180 for the cable line 220 relative to the support body 130.

[0098] Therefore, the distance between the side walls 128 and 129 makes it easy to determine a first angular delay between the rotation of the support body 130 and the rotation of the shielding and guiding body 180 for the cable line 220, and a second angular delay between the rotation of the support body 130 and the rotation of the shielding and guiding body 180 for the cable line 220.

[0099] From what has been described, the features of the hinge assembly for spectacles, object of the present invention, are highlighted and the associated advantages are evident.

[0100] In fact, the hinge assembly for spectacles according to the invention is bistable and at the same time is able to reach an overtravel open position.

[0101] Furthermore, in the case where the hinge assembly for glasses is installed in "smart" type glasses, the angular delay provided between the rotation of the shielding and guiding body and the supporting body for the cable allows preventing the cable from undergoing critical bending that could damage the cable itself.

[0102] Finally, it is obvious that the hinge assembly for spectacles thus conceived is susceptible of numerous modifications and variations, all of which are part of the invention; moreover, all the details may be replaced by technically equivalent elements. In practice, the materials used, as well as the dimensions, may be chosen according to the needs of the technical requirements.

Claims

1. A hinge assembly (100) for glasses, comprising: - a support plate (110), the support plate having a first face (111) and a second face (112), the first face being substantially flat and intended to be applied to a front portion (311) of a frame (310) for spectacles (300), the second face being substantially flat and opposite and parallel to the first face (111), the support plate (110) comprising a first cantilever portion (113) and a second cantilever portion (114) parallel and opposite to each other, the first cantilever portion and the second cantilever portion extending from the second face (112) in a direction substantially perpendicular to the second face, the cantilever portions (113, 114) respectively having a first through hole (115) and a second through hole (116) opposite and aligned to each other in a vertical direction z; - a support body (130) intended to be applied to a temple (312) for spectacles (300), the support body (130) being rotatably coupled to the support plate (110), the support body (130) and the support plate (110) comprising respective interaction elements (118, 119, 134, 135) suitable for guiding the support body (130) and the support plate (110) in the hinge assembly ( The support body (130) is configured to reciprocate between a first stable open position of the hinge assembly (100) and / or a second stable closed position of the hinge assembly (100) for glasses, the support body (130) comprising a third through hole (132) and a slot-shaped through hole (133), the third through hole and the slot-shaped through hole having axes parallel to each other and substantially parallel to the vertical direction z, the support body (130) comprising at least one accommodating chamber (138), the accommodating chamber being open to the outside and communicating with the slot-shaped through hole (133); - a first arm element (140) and a second arm element (150), the first arm element and the second arm element having respective first perforated end portions (141, 151) arranged at the first through hole (115) and the second through hole (116) of the cantilever portion (113, 114), respectively, and respective second perforated end portions (142, 152) received in the support body (130) at the third through hole (132), a first coupling pin (136) traversing the third through hole (132) and the second perforated end portions (142, 152), a first coupling element (122) and a second coupling element (123) traversing the first through hole (115) and the second through hole (116), respectively, at least partially, and being coupled to the first perforated end portions (141, 151), respectively; - a third arm element (160) and a fourth arm element (170), said third arm element and fourth arm element having respective third perforated end portions (161, 171) rotatably coupled to said first perforated end portions (141, 151) and respective fourth perforated end portions (162, 172) received in said support body (130) at said slot-shaped through hole (133), a second coupling pin (137) traversing said slot-shaped through hole (133) and said fourth perforated end portions (162, 172); - At least one elastic element (139), which is accommodated in the at least one accommodating chamber (138) on one side and contacts the bottom wall of the at least one accommodating chamber (138) and the second connecting pin (137) on the other side. When the hinge assembly (100) for glasses changes from the first stable open position to the third unstable over-travel open position, the at least one elastic element (139) is compressed by the second connecting pin (137), and the at least one elastic element (139) pushes the second connecting pin (137) from the third unstable over-travel open position back to the first stable open position.

2. The hinge assembly (100) for eyeglasses according to claim 1, wherein the interaction element (118, 119, 134, 135) comprises: - a first guide groove (118) made on said first cantilevered portion (113), - a second guide groove (119) made on the second cantilever portion (114), - a first protrusion (134) and a second protrusion (135) formed on the support body (130), the guide grooves (118, 119) are shaped as arc segments of a circle and respectively include a first end-of-stroke abutment portion (120, 120') and a second end-of-stroke abutment portion (121, 121'), the first protrusion (134) and the second protrusion (135) are respectively placed in the first guide groove (118) and the second guide groove (119), and are suitable for contacting the first end-of-stroke abutment portion (120, 120') with the second end-of-stroke abutment portion (121, 121'). The abutment parts (121, 121') slide in the first guide groove and the second guide groove. When the hinge assembly (100) for glasses is in the first stable open position, the first protrusion (134) and the second protrusion (135) both contact and abut the first end-stroke abutment part (120, 120'). When the hinge assembly (100) for glasses is in the second stable open position, the first protrusion (134) and the second protrusion (135) both contact and abut the second end-stroke abutment part (121, 121').

3. A hinge assembly (100) for glasses according to claim 1 or 2, wherein the first perforated end portion (141, 151) has a cylindrical delimiting wall (143, 153) around its hole, and the delimiting wall protrudes a certain length beyond the surface of the first cantilever portion (113) and the second cantilever portion (114) respectively, and the first connecting element (122) and the second connecting element (123) have corresponding threaded ends (124, 125), and the corresponding threaded ends are suitable for connecting with the threaded holes of the first perforated end portion (141, 151), and the first connecting element (122) and the second connecting element (123) have corresponding cylindrical portions (126, 127), and the cylindrical portions are suitable for allowing the connecting elements (122, 123) to rotate in the first through hole (115) and the second through hole (116).

4. Hinge assembly (100) for spectacles according to one or more of the preceding claims, wherein: The number of the at least one elastic element (139) is two, and the number of the at least one elastic element (139) is equal to the number of the at least one accommodating chamber (138).

5. A hinge assembly (100) for spectacles according to one or more of the preceding claims, comprising a shielding and guiding body (180) for an electrical cable (220), the shielding and guiding body for the electrical cable extending along an axis z between a first end (181) and a second end (182) and being sandwiched between the cantilever parts (113, 114) so ​​that the first end (181) faces the first cantilever part (113) and the second end (182) faces the second cantilever part (114). Part (114), the first perforated end portion (141) of the first arm element (140) is clamped between the first end portion (181) of the shielding and guiding body (180) for the cable (220) and the first cantilever portion (113), and the first perforated end portion (151) of the second arm element (150) is clamped between the second end portion (182) of the shielding and guiding body (180) for the cable (220) and the second cantilever portion (114).

6. The hinge assembly (100) for glasses according to claim 5, wherein: The shielding and guiding body (180) for the electric cable (220) includes a first shelf portion (183) and a second shelf portion (184) separated from each other and extending in length between the first end portion (181) and the second end portion (182), and at least one bridging element (185) connecting the shelf portions (183, 184) to each other, the shelf portions (183, 184) facing each other and defining a free gap between them, and the supporting plate (110) includes an opening (190) positioned between the first cantilever portion (113) and the second cantilever portion (114) along the vertical direction z.

7. A hinge assembly (100) for glasses according to claim 6, wherein the first rest portion (183) and the second rest portion (184) have two peripheral stop walls (186, 187), which protrude beyond the first end (181) and the second end (182) in a direction substantially parallel to the vertical axis z to form two accommodating seats for the first perforated end portion (141, 151).

8. A hinge assembly (100) for glasses according to claim 6 or 7, wherein the support plate (110) includes a first side wall (128) and a second side wall (129) connecting the first cantilever portion (113) to the second cantilever portion (114), and when the hinge assembly (100) for glasses is in a first stable open position, the at least one bridging element (185) contacts and abuts against the first side wall (128) of the support plate (110), and when the hinge assembly (100) for glasses is in a second stable closed position, the at least one bridging element (185) contacts and abuts against the second side wall (129) of the support plate (110).

9. A hinge assembly (100) for glasses according to claim 8, wherein the distance between the side walls (128, 129) makes it easy to determine a first angular delay between the rotation of the supporting body (130) and the rotation of the shielding and guiding body (180) for the cable (220) and a second angular delay between the rotation of the supporting body (130) and the rotation of the shielding and guiding body (180) for the cable (220).

10. The hinge assembly (100) for eyeglasses according to claim 9, wherein the first angular delay is substantially equal to the second angular delay.

11. The hinge assembly (100) for spectacles according to claim 9 or 10, wherein the first angular delay is between 1° and 45°, and the second angular delay is between 1° and 45°.

12. A pair of glasses (300), comprising: - a front part (311) suitable for carrying two lenses and two temples (312) suitable for allowing the user to wear the glasses; - Two hinge assemblies (100) for spectacles according to the invention, each of said hinge assemblies coupling a respective temple (312) to said front part (311).

13. The glasses (300) according to claim 12, wherein the glasses (300) are of a "smart" type and the hinge assembly (100) for the glasses is made according to claims 5 to 8, the glasses (300) comprising a cable (220) adapted to electrically connect electrical and / or electronic devices installed in the front part (311) and the temples (312) therebetween, the cable (220) from the front part (311) of the glasses (300) crossing the opening (190) of the support plate (110) and the gap between the resting parts (183, 184) to reach the corresponding temples (312).

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