Eyewear with bistable hinge
By introducing elastic elements and thrust bodies into the hinge assembly of the glasses, the shortcomings in aesthetics and perceived quality of existing bistable hinged glasses are solved, and high-quality perceived experience and compact design are achieved.
Patent Information
- Application Number
- CN202380053314.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-07-29
- Filing Date
- 2023-07-25
- Publication Date
- 2025-03-28
AI Technical Summary
Existing bistable hinged glasses have aesthetic problems such as excessive size and low perceived quality, and it is difficult to achieve high-quality perceived experience and compact design.
A glasses including a hinge assembly that operates without gaps and ensures stability of the temple in the open and closed position by introducing an elastic element and a thrust body into the hinge assembly while reducing the volume of the hinge actuation mechanism.
A high-quality perceptual experience is achieved, reducing the volume of the hinge actuator on the temples, making the glasses more aesthetically compact and aesthetically pleasing, and simplifying the assembly and maintenance process.
Smart Images
Figure CN119731581A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to eyeglasses having a bistable hinge. Background Art
[0002] As is known, there are glasses that are provided with a bistable hinge. Such a hinge allows to maintain an open position in which the temples of the glasses are open and a closed position in which the temples of the glasses are closed.
[0003] Typically, the bistability of the hinge is provided by the interaction of different joint elements in the hinge region between the temple and the front, which operate in a free state between a first open position and a second closed position. The free state creates a feeling of low perceived quality of the article to the user.
[0004] Furthermore, the well-known bistable hinges provide bulk that has an impact on the temple itself and, more generally, on the aesthetics of the spectacles. Summary of the invention
[0005] The object of the present invention is to overcome the above-mentioned drawbacks and in particular to devise a pair of spectacles comprising a hinge assembly which operates without play and has a high perceived quality.
[0006] Furthermore, another object of the present invention is to make the eyeglasses including the hinge assembly aesthetically pleasing and to minimize the bulk of the hinge actuation mechanism on the temple, as well as to facilitate assembly and ensure quick and simple maintenance.
[0007] This and other objects are achieved according to the invention by manufacturing spectacles as claimed in claim 1 .
[0008] Further features of the spectacles are object of the dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The features and advantages of the spectacles according to the invention will become more apparent from the following exemplary and non-limiting description, with reference to the attached schematic drawings, in which:
[0010] - Figure 1 is a perspective view of eyeglasses according to the present invention, wherein the temples of the eyeglasses are in a first stable open position;
[0011] - Figure 2 yes Figure 1 A first side view of the eyeglasses;
[0012] - Figure 3 It is along Figure 2 A first cross-sectional view of the glasses along line III-III;
[0013] - Figure 4is a second side view of the eyeglasses according to the present invention when the temples of the eyeglasses are in an intermediate position between the first stable open position and the second stable closed position;
[0014] - Figure 5 It is along Figure 4 A second cross-sectional view of the glasses taken along line IV-IV;
[0015] - Figure 6 is a third side view of the eyeglasses according to the present invention when the temples of the eyeglasses are in a second stable closed position;
[0016] - Figure 7 It is along Figure 6 A third cross-sectional view of the glasses taken along line VI-VI;
[0017] - Figure 8 is an exploded perspective view of spectacles according to the present invention;
[0018] - Fig. 9 is an exploded perspective view of glasses according to an alternative embodiment of the present invention. DETAILED DESCRIPTION
[0019] Referring to the drawings, eyeglasses, generally indicated at 200 , are shown.
[0020] In this description, for the sake of simplicity and clarity, reference will be made to the Cartesian axis system XYZ including the longitudinal axis X, the transverse axis Y and the vertical axis Z as shown in the drawings. Figure 8 Orientation of eyeglasses 200 is shown.
[0021] Such spectacles 200 comprise a frame which in turn comprises a front portion 210 suitable for supporting two lenses and two temples 220 suitable for allowing a user to wear the spectacles 200 .
[0022] Temple 220 is rotatably coupled to front portion 210 so as to rotate between a first stable open position in which temple 220 is open and eyeglasses 200 can be worn, and a second stable closed position in which temple 220 is closed and eyeglasses 200 cannot be worn.
[0023] Advantageously, the front portion 210 comprises two open first housing seats 211 facing the temples 220 .
[0024] Each first housing seat 211 is a recess obtained at the coupling zone between the front portion 210 and the corresponding temple 220. Advantageously, the spectacles 200 comprise two hinge assemblies, indicated generally by 100, by means of which the temples 220 are rotatably coupled to the front portion 210.
[0025] Each hinge assembly 100 includes a hinge body 110, which is connected to the corresponding temple 220, so that the hinge body has an end portion 111 that protrudes in a suspended manner relative to the temple 220 and passes through at least a portion of the corresponding first accommodating seat among these first accommodating seats 211, and the end portion is rotatably connected to the front portion 210 in the first accommodating seat.
[0026] In a particular embodiment, as shown in the figure, the front portion 210 also includes two second housing seats 212 that are in communication with the first housing seats 211 and have axes that are transverse to the axes of the first housing seats 221. Preferably, the axes of the first housing seats 211 and the axes of the second housing seats 212 are substantially perpendicular to each other. Even more preferably, the axes of the first housing seats 211 are substantially parallel to the longitudinal axis X, while the axes of the second housing seats 212 are substantially parallel to the vertical axis Z.
[0027] In more detail, the second accommodation seat 211 is a recess obtained from the first surface 210 a of the front portion 210 or the second surface 210 b of the front portion 210 opposite to the first surface 210 a .
[0028] In the case where the front portion 210 includes a second receiving seat 212, the end portion 111 may be provided with a first through hole 112, which is arranged at and coaxial with the corresponding second receiving seat 212. Preferably, the axis of the first through hole 112 and the axis of the corresponding first receiving seat 211 are substantially perpendicular to each other.
[0029] In addition, the hinge assembly 100 may further include a first coupling pin 120 that is received in the corresponding second accommodation seat 212 and passes through the first through hole 112 to achieve rotatable coupling with the end portion 111 of the hinge body 110 .
[0030] Therefore, the hinge body 110 can rotate around an axis passing through the first through hole 112 and the corresponding second receiving seat 212, thereby forming the above-mentioned rotatable connection.
[0031] Preferably, the first coupling pin 120 is made in the form of a screw having a threaded shank terminal portion and an unthreaded cylindrical middle portion 121. Such cylindrical middle portion 121 is at least included in the first housing seat 211 and allows the articulated body 110 to rotate.
[0032] In this case, the rod terminal portion is coupled to a corresponding threaded portion made in the second housing seat 212 .
[0033] Preferably, in the case where the second receiving seat 212 extends from the first surface 210 a of the front portion 210 , such a threaded portion of the second receiving seat 212 is made in the front portion 210 on the second surface 210 b side.
[0034] Preferably, in the case where the second receiving seat 212 extends from the second surface 210 b of the front portion 210 , a threaded portion of the second receiving seat 212 is made in the front portion 210 at the first surface 210 a side.
[0035] In a specific embodiment, as shown in the figure, the temple 220 includes two openings 221, which face the gap between the temple 220 and the front portion 210. In addition, the hinge body 110 also includes a second through hole 114 arranged at the corresponding opening 221 and coaxial with the corresponding opening 221.
[0036] In this case, the hinge assembly 100 further includes a second coupling pin 140 received in the corresponding opening 221 and passing through the second through hole 114 to couple the hinge body 110 to the corresponding temple 220 .
[0037] Preferably, the second coupling pin 140 is made in the form of a screw having a threaded shaft portion coupled with a corresponding threaded portion of the corresponding opening 221 .
[0038] In a particular embodiment, as shown in the figures, the opening 221 is made in a recess of the corresponding temple 220, in which the end portion 111 protruding in suspension relative to the corresponding temple 220 is accommodated.
[0039] Preferably, the second through hole 114 and the opening 221 have axes substantially parallel to the transverse axis Y.
[0040] Advantageously, each hinge assembly 100 further includes an elastic element 130 received in a corresponding first receiving seat 211 .
[0041] The elastic element 130 is placed between the bottom wall of the corresponding first receiving seat 211 and the end portion 111 of the hinge body 110. In addition, the elastic element 130 abuts against the bottom wall and the end portion 111.
[0042] In more detail, the elastic element 130 includes a first end portion 131 that contacts and abuts against a bottom wall of the corresponding first receiving seat 211 and a second end portion 132 that contacts and abuts against an end portion 111 of the hinge body 110 .
[0043] Preferably, the hinge assembly 100 includes a thrust body 133 disposed between the elastic element 130 and the end portion 111 of the hinge body 110. In addition, the thrust body 133 is also in contact with the elastic element 130 and the end portion 111.
[0044] In more detail, the thrust body 133 abuts against the second end 132 of the elastic element 130. Preferably, the thrust body 133 is a pressurizing member including a blind cavity, and the elastic element 130 is accommodated in the blind cavity.
[0045] Advantageously, the elastic element 130 is compression preloaded by a preload force.
[0046] “Compression preload” means that, when the corresponding temple 220 is in a static state in the first stable open position or the second stable closed position, the elastic element 130 is compressed and applies a first thrust equal to and opposite to the preload force.
[0047] In fact, the hinge body 110 and the elastic element 130 are configured in such a way that the elastic element 130 applies a first thrust equal to and opposite to the preload force on the end portion 111 of the hinge body 110 when the corresponding temple 220 is in the first stable open position or the second stable closed position.
[0048] Conversely, when the corresponding temple 220 is transferred from the first stable open position to the second stable closed position or from the second stable closed position to the first stable open position, the elastic element 130 is compressed by a compressive force greater than the preload force applied by the end portion 111 of the hinge body 110.
[0049] In fact, when the temple 220 is in an intermediate position between the first stable open position and the second stable closed position, the elastic element 130 is compressed higher than the compression imparted by the preload force. In this case, the elastic element 130 exerts a second thrust greater than the first thrust and therefore greater than the preload force on the end portion 111 of the hinge 110; at this time, if the user releases the temple 220, the second thrust is sufficient to rotate the hinge 110 and return the temple 220 to the first stable open position or the second stable closed position.
[0050] The hinge body 110 includes a protrusion 113 formed on the end portion 111 , and the protrusion 113 protrudes toward the elastic member 130 and contacts the elastic member 130 .
[0051] Preferably, the protrusion 113 extends along a direction substantially parallel to the vertical axis Z for a length of the articulated body 110 .
[0052] The protrusion 113 compresses the elastic element 130 when the corresponding temple 220 is transferred from the first stable open position to the second stable closed position or from the second stable closed position to the first stable open position.
[0053] In more detail, the closer the protrusion 113 is to the axis of the elastic element 130, the more the compression of the elastic element 130 is higher than the compression of the preload; therefore, even the second thrust is increased above the preload force and thus also above the first thrust. On the other hand, the farther the protrusion 113 is from the axis of the elastic element 130, the more the compression of the elastic element 130 is reduced, but it always remains greater than the compression of the preload; therefore, even the second thrust is reduced, it always remains greater than the preload force and thus greater than the first thrust.
[0054] Preferably, when the protrusion 113 is located at the symmetry axis of the elastic element 130 which is substantially parallel to the longitudinal axis X, the elastic element 130 is subjected to maximum compression, and thus a maximum second thrust is generated.
[0055] In addition, the first accommodation seat 211 includes a first stroke end wall 211 ′ and a second stroke end wall 211 ″ opposite to the first stroke end wall 211 ′.
[0056] When the corresponding temple 220 is transferred from the first stable open position to the second stable closed position, the protrusion 113 slides between the first stroke end wall 211' and the second stroke end wall 211", and vice versa. When the corresponding temple 220 is in the first stable open position, the protrusion 113 contacts and abuts the first stroke end wall 211'; when the corresponding temple 220 is in the second stable closed position, the protrusion 113 contacts and abuts the second stroke end wall 211".
[0057] In addition, the above-mentioned first thrust allows the protrusion 113 to remain stationary and contact and abut the first stroke end wall 211' when the corresponding temple 220 is in the first stable open position, or contact and abut the second stroke end wall 211" when the corresponding temple 220 is in the second stable closed position. In both cases, the thrust does not allow the hinged body 110 to rotate spontaneously, for example under the weight of the corresponding temple 220.
[0058] In more detail, when the corresponding temple 220 is transferred from the first stable open position to the second stable closed position, the protrusion 113 compresses the elastic element 130 and slides from the first stroke end wall 211' to the second stroke end wall 211" on the second end 132; when the corresponding temple 220 is transferred from the second stable closed position to the first stable open position, the protrusion 113 compresses the elastic element 130 and slides from the second stroke end wall 211" to the first stroke end wall 211' on the second end 132.
[0059] In addition, during the process of transferring from the first stable open position to the second stable closed position, or during the process of transferring from the second stable closed position to the first stable open position, if the user releases the corresponding temple 220 when the protrusion 113 is located between the first stroke end wall 211' and the axis of the elastic element 130, the second thrust applied to the protrusion 113 forces the hinge body 110 to rotate and return the corresponding temple 220 to the first stable open state. In this case, the protrusion 113 slides on the second end 132 of the elastic element 130 until the protrusion 113 resumes contact with and abuts the first stroke end wall 211'; if the user releases the temple 220 when the protrusion 113 is located between the second stroke end wall 211" and the axis of the elastic element 130, the second thrust applied to the protrusion 113 forces the hinge body 110 to rotate and return the corresponding temple 220 to the second stable closed position. In this case, the protrusion 113 slides on the second end 132 of the elastic element 130 until the protrusion 113 resumes contact with and abuts the second stroke end wall 211".
[0060] According to an alternative embodiment of the glasses 200, Fig. 9 As shown, the thrust body 133 is shaped like, for example Figure 8 The thrust body 133 shown is different.
[0061] In particular, this alternative embodiment is Figure 8 The difference is that the thrust body 133 has a cylindrical shape instead of a prismatic shape.
[0062] From the description thus far, it becomes clear what are the characteristics of the spectacles which are the object of the present invention, as well as the associated advantages.
[0063] In fact, the glasses according to the invention comprise several joint elements and, besides ensuring the stability of the temples in the open and closed positions, ensure easier access to replace them in the event of damage, breakage or customization of the hinge assembly itself and / or the temples.
[0064] Finally, it is clear that the spectacles thus conceived are susceptible of numerous modifications and variations, all of which fall within the scope of the invention; moreover, all the details may be replaced with technically equivalent elements. In practice, the materials used, as well as the dimensions, will vary according to technical requirements.
Claims
1. Glasses (200) including: - a front part (210) and two temples (220), the temples being rotatably coupled to the front part (210) so as to rotate between a first stable open position and a second stable closed position, the front part (210) comprising two open first housing seats (211) facing the temples (220); - two hinge assemblies (100), through which the temple (220) is rotatably coupled to the front portion (210), each of the hinge assemblies (100) comprising: - an articulated body (110) connected to the corresponding temple (220) so that the articulated body has an end portion (111) that protrudes in a suspended manner relative to the temple (200) and passes through at least a part of the corresponding first receiving seat (211) in the first receiving seat, wherein the end portion is rotatably connected to the front part (210), - an elastic element (130), the elastic element being accommodated in the corresponding first accommodation seat (211), the elastic element (130) being placed between the bottom wall of the corresponding first accommodation seat (211) and the end portion (111) of the hinged body (110), the elastic element (130) being in contact with the bottom wall and the end portion (111), and the elastic element (130) being compressed and preloaded by a preload force, The hinged body (110) and the elastic element (130) are constructed so that: when the corresponding temple (220) is in the first stable open position or in the second stable closed position, the elastic element (130) applies a first thrust force equal to and opposite to the preload force on the end portion (111) of the hinged body (110), and when the corresponding temple (220) is transferred from the first stable open position to the second stable closed position or from the second stable closed position to the first stable open position, the elastic element (130) is compressed by a compression force greater than the preload force applied by the end portion (111) of the hinged body (110).
2. The glasses (200) according to claim 1, wherein: The hinged body (100) comprises: - a protrusion (113) formed on the end portion (111) of the hinge body (110), the protrusion protruding toward the elastic element (130) and in contact with the elastic element, and when the corresponding temple (220) is transferred from the first stable open position to the second stable closed position or from the second stable closed position to the first stable open position, the protrusion (113) compresses the elastic element (130).
3. The glasses (200) according to claim 1 or 2, wherein: The first accommodating seat (211) comprises a first stroke end wall (211') and a second stroke end wall (211") opposite to the first stroke end wall (211'); when the corresponding temple (220) is in the first stable open position, the protrusion (113) contacts and abuts against the first stroke end wall (211'); when the corresponding temple (220) is in the second stable closed position, the protrusion (113) contacts and abuts against the second stroke end wall (211").
4. Spectacles (200) according to one or more of the preceding claims, wherein: The hinge assembly (100) comprises a thrust body (133) disposed between the elastic element (130) and the end portion (111) of the hinge body (110); the thrust body (133) is also in abutment with the elastic element (130) and the end portion (111).
5. The glasses (200) according to claim 4, wherein: The thrust body (133) is a pressurizing member comprising a blind cavity, and the elastic element (130) is accommodated in the blind cavity.
6. Spectacles (200) according to one or more of the preceding claims, wherein: The front portion (210) includes two second accommodating seats (212), the second accommodating seats are connected to the first accommodating seats (211) and have an axis that is transverse to the axis of the first accommodating seats (211), the end portion (111) is provided with a first through hole (112), the first through hole is arranged at the corresponding second accommodating seat (212) and is coaxial with the corresponding second accommodating seat, and the hinge assembly (100) includes a first connecting pin (120), the first connecting pin (120) is accommodated in the corresponding second accommodating seat (212) and passes through the first through hole (112) to achieve a rotatable connection with the end portion (111).
7. The glasses (200) according to claim 6, wherein: The axes of the first accommodating seat (211) and the second accommodating seat (212) are substantially perpendicular to each other.
8. Spectacles (200) according to one or more of the preceding claims, wherein: The temple (220) includes two openings (221), wherein the openings face the gap between the temple (220) and the front portion (210); the hinge body (110) includes a second through hole (114), wherein the second through hole is arranged at the corresponding opening (221) and is coaxial with the corresponding opening; and the hinge assembly (100) includes a second connecting pin (140), wherein the second connecting pin is accommodated in the corresponding opening (221) and passes through the second through hole (114) to connect the hinge body (110) to the corresponding temple (200).