Eyeglass joint

Abstract

The invention relates to a screwless elastic spectacle joint. A joint for a spectacle frame with spectacles legs is described, wherein the joint (1) consists of a front part (2), a spectacles leg part (3) and a pressure spring element (4), wherein the spectacles leg part (3) consists of a cuboid open towards the front, along one side and on the inner side, a short rotation axis (6) towards the inside is arranged on the inner sides (5) opposite to each other of the open cuboid, and wherein the front part (2) is built in the form of a holding flange (9) designed to be able to be inserted into the open cuboid of the spectacles leg part (3), on both opposite outer surfaces of the holding flange (9) bearing hooks (13) in the form of grooves are arranged, which are able to hook into the short rotation axis (6) of the spectacles leg part (3), whereby the front part (2) and the spectacles leg part (3) are connected to each other in a hinged manner, the pressure spring element (4) is arranged between the front part (2) and the spectacles leg part (3), so that the front part (2) is movably fixed on the rotation axis (6) of the spectacles leg part (3).

Description

TECHNICAL FIELD

[0001] The present invention relates to a screwless elastic spectacle joint. BACKGROUND

[0002] DE 43 39 517 C1 discloses a spectacle frame with temples which are arranged in a horizontally pivotable manner on the lens-side connecting elements, wherein the temples can also be moved vertically with the aid of a joint. The disadvantage of the prior art is that the temples are not arranged in a fixed position in the open or closed state. Furthermore, the temples are fixed by means of an adjustable elastic force depending on the environment in which the user of the spectacles wants to use the spectacles.

[0003] US 658,537,2B1 describes a connecting structure between the temples and the spectacle frame, which generates an appropriate resistance to the characteristic change in the manner of the opening and folding movement of the spectacle arms, which is generated by the temples.

[0004] JP 2002-268017 A discloses a temple connecting structure which is configured in such a way that the assembly work is improved, the manufacturing costs are reduced and the end piece is prevented from being substantially enlarged in circumference for configuring the spring element located therein, simply by using the restoring force of an elastic spring element.

[0005] JP 2013-148826 A discloses a temple connecting structure of spectacles which is provided by a click-in structure, the structure and assembly work of which are simple.

[0006] US 2010 / 0091237 A describes an elastic hinge element for a spectacle frame, which comprises a slider arranged in a housing and a restoring spring for the slider. The slider comprises guide parts which work by means of guide regions of the frame and an end which forms a joint which extends outside the housing. The spring works under pressure between a rear stop integrated into the slider and a front stop. SUMMARY

[0007] It is therefore an object of the present invention to overcome the disadvantages of the prior art and to provide a spectacle joint which is composed of fewer components and enables tool-free assembly of the joint parts.

[0008] The solution according to the invention for achieving the above-mentioned objects consists in a spectacle joint having the features of the main claim. Advantageous further solutions of the spectacle joint according to the invention are characterised in the dependent claims.

[0009] Subject of the invention is a joint for eyeglass frames with temple pieces, wherein the joint consists of a front part, a temple part and a pressure spring element, wherein the temple part consists of a cuboid open towards the front, along one side and on the inner side, short rotation axes towards the interior are arranged on the inner sides of the open cuboid opposite to each other, and wherein the front part is built in the form of a holding flange, wherein the holding flange is designed to be able to be inserted into the open cuboid of the temple part, bearing hooks in the form of grooves are arranged on both opposite outer surfaces of the holding flange, which are able to hook into the short rotation axes of the temple part, whereby the front part and the temple part are able to be connected to each other in a hinged manner, the pressure spring element is arranged between the front part and the temple part, so that the front part is movably fixed on the rotation axes of the temple part.

[0010] It is preferred to employ a joint according to the invention, wherein the temple part has an inlay, which extends from the temple part backwards into the eyeglass temple, wherein the inlay is designed to be able to be inserted into the eyeglass temple.

[0011] It is particularly preferred that the inlay has a cavity for forming a spring housing, and that the temple part has a bore at the rear wall of the open cuboid, so that the pressure spring element is able to be inserted through the temple part into the cavity of the inlay.

[0012] It is furthermore preferred to employ a joint according to the invention, wherein the front part has a further bottom plate, which is arranged at the front of the holding flange.

[0013] It is particularly preferred that the bottom plate is built in such a way that in the open state of the eyeglass temple, the bottom plate covers the front open side of the cuboid of the temple part.

[0014] It is furthermore particularly preferred that a connecting element is arranged on the front side of the bottom plate, which is adapted to fix a frame for eyeglass lenses.

[0015] It is furthermore further particularly preferred to employ a joint according to the invention, wherein the holding flange has a radius on the outer rear side and a rounded edge on the inner rear side.

[0016] It is furthermore particularly preferred to employ a joint according to the invention, wherein the pressure spring element consists of a pressure spring and a pin, wherein the pin is arranged in the direction of the holding flange.

[0017] It is furthermore preferred to employ a joint, wherein the holding flange is formed on the side towards the pin, so that a constant pressure is exerted on the pressure spring in an angle range of 90° to 108° between the joint parts to each other.

[0018] It is therefore also preferred to employ a joint, wherein the retaining flange is constructed on the side facing the pin so that in the angular range of 0° to 18° between the front part and the temple part, the pressure spring no longer experiences additional relaxation, so that the spring action fails shortly before folding in the temples.

[0019] Furthermore, according to the application, it is preferred to employ a joint according to the application, wherein the pin is firmly or detachably connected with the pressure spring.

[0020] A further subject of the application is a joint for a spectacle frame with temples, wherein the joint consists of a front part, a temple part and a pressure spring element, wherein the front part consists of a cuboid open on the front, on one side and on the inside, short rotation axes facing the interior are arranged on the mutually opposite inner sides of the open cuboid, and wherein the temple part is constructed in the form of a retaining flange, wherein the retaining flange is designed to be able to be inserted into the open cuboid of the front part, bearing hooks in the form of grooves are arranged on the two opposite outer surfaces of the retaining flange, which are able to hook into the short rotation axes of the front part, whereby the front part and the temple part are able to be connected to one another in a hinged manner, the pressure spring element is arranged between the front part and the temple part so that the temple part is movably fixed on the rotation axes of the front part.

[0021] Furthermore, according to the application, it is preferred to employ a joint according to the application, wherein the pressure spring element is in the form of a leaf spring and / or an elastomer part and / or a rubber molding. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application is explained in detail in conjunction with the attached drawings. In which:

[0023] Figure 1 is an exploded perspective view of a spectacle joint according to the application;

[0024] Figure 2 is a partial sectional view of a spectacle joint according to the application in three state positions during the engagement of the joint;

[0025] Figure 3 is a sectional view of a spectacle joint according to the application; and

[0026] Figure 4 are three top views of a spectacle joint according to the application in three different positions along the longitudinal axis. DETAILED DESCRIPTION

[0027] DEFINITIONS

[0028] The positions and directions given here are to be understood as follows:

[0029] Front: the viewing direction of the glasses wearer;

[0030] Posterior: opposite to the anterior (towards the ears);

[0031] Inner: the side of the head, toward the center of the eyeglass wearer's body;

[0032] Outer: On the side of the head, away from the center of the eyeglass wearer's body.

[0033] Connector position 180°: temples fully open.

[0034] Connector position 90°: temples are completely folded.

[0035] The joint according to the present invention has two defined end positions, open and closed, into which it snaps when the temple is opened and closed. This is achieved by the interaction of a spring pin with a non-circular running surface. The front and temple-side joint components, i.e., the front part and the temple part, can be assembled and disassembled without tools by hooking the swivel axis into the bearing hook.

[0036] For example, the temple that is made of plastic or metal preferably comprises a metal core or is made of metal fully. Particularly preferably, the modification of the metal core in the plastic temple is adopted, which is called a temple insert.

[0037] A compression spring, preferably a helical spring made of spring steel, and a pre-installed or loosely inserted pin (e.g., made of metal or ceramic) are movably supported in a spring housing at the front of the temple insert. The spring housing may have barbs or other surface structures on the outside to prevent it from slipping out of the surrounding plastic of the temple. The spring housing may have a circular or polygonal cross-section and is preferably designed as an anti-twist protection. The insert can be introduced and fixed into the plastic temple by immersion (e.g., by vibration or heating, injection molding, riveting, gluing, or screwing).

[0038] Furthermore, according to the invention, the compression spring can also be in the form of a leaf spring. A spring element in the form of an elastomer or a rubber molding is also preferably used.

[0039] The temple-side joint component is attached to the front end of the temple insert. This joint component is preferably made of steel via metal injection molding and welded or brazed to the insert, but it can also be integrally formed. It consists of a box that opens forward and inward, with two short rotation axes located at the top and bottom. The inner front edge of the box features a bevel that provides the joint with the necessary freedom of movement when assembled. The rear wall of the box has a drilled hole for installing and removing the spring element. The short axis leaves ample space for this purpose.

[0040] The front joint part is preferably also made of steel in one piece by means of metal injection molding, but can also be manufactured using milling techniques or by means of extrusion / milling. The front of the glasses can be made of plastic or metal. It is particularly preferred to use a front made of a thermoplastic material. The front joint part has a mounting device which allows insertion into the plastic front. This can be achieved by means of hot dipping, vibration welding, gluing, riveting or screwing. The mounting device can also be pressed onto the front face of the front by means of a further metal part. It is particularly preferred to enter the so-called entry mushroom by means of vibration and pressure.

[0041] The entry mushroom or rivet socket or another suitable mounting device is arranged on a base plate which defines the positioning of the front joint part on the plastic and serves to prevent it from sinking too far. The base plate can also serve as a stop for the temple side joint part. The base plate is not necessary for the movement of the joint, but can prevent the joint from being undesirably detached in any temple position in the mounted state.

[0042] On the base plate there is also a flange, preferably in the form of a retaining flange, which fits into the temple side joint box and has a radius on the outer rear and a slightly rounded edge on the inner rear. In the mounted state, this edge forms a non-circular working surface for the temple side spring element. The flange can also serve as a stop for the temple side joint part. At the top and bottom side of the flange there is an outwardly opening hook geometry which serves as a bearing for the shaft pin of the temple part. The hook geometry enables the joint part to be mounted toollessly on the front, similar to a bayonet principle. By moving the temple at an angle of about 45° from the outside inwards relative to the front, the spring-loaded pin can be pressed into the spring housing by means of the inner side of the front flange, in turn bringing the shaft from the outside into the hook. If the temple is released, the spring element presses the shaft into the hook and the joint can be opened and closed at an angle of 180° to 90°. In this case, at a temple position of 45°, the angled working surface of the pin presses the pin back as far as possible relative to the front. At 90° and 180° positions, the spring is most relaxed. Defined end positions of the temple movement are thereby achieved.

[0043] In a further embodiment of the joint according to the application, there is no further spring device in the angular range of 108° to 90°, i.e. shortly before the complete folding in of the temple. For this purpose, the working surface of the retaining flange is shaped in such a way that in the angular range of 108° to 90°, before the temple comes to rest against the front, there is no inwardly acting spring force, but only a transmission adjustment. Thus, the spring is always compressed in the last section of the temple. The advantage of this embodiment is that, by means of the constant pressure exerted by the spring onto the front and the accordingly other temple, deformation of the plastic and of the glasses as a whole can be prevented over a longer period of time and under the influence of thermal effects. Since the spring is always kept compressed in the last section of the temple, it is thereby possible to prevent an undesired deformation of the frame.

[0044] The spring force and spring characteristics of the temple can be varied by means of variables such as the length, the number of turns and the wire thickness of the pressure spring and the length of the pin. In this way it is possible to subsequently change the characteristics of the joint without exchanging it.

[0045] The joint can also be detached again without tools by moving the temple forward and outward relative to the front, in such a way that the temple forms an angle of approximately 45° with the front. Thus, if the spring becomes fatigued over time, it is possible to exchange the spring element. It is advisable to lubricate the mechanism with a small amount of oil or grease in order to reduce wear to a minimum. Applying viscous grease to the spring before mounting it has two advantages: the spring housing acts as a pump reservoir for the lubricant, and the probability of the spring, including the pin, being lost during the detachment process is greatly reduced by the viscosity of the grease.

[0046] With the structure according to the application it is possible to achieve a minimum structure height of 4 mm for the glasses joint. However, this structure height can be chosen arbitrarily depending on the design of the glasses. A further reduction is limited by the applicable spring diameter and the minimum wall thickness of the spring housing and the plastic jacket, but this is understandable. Higher structure heights can be used. The joint parts can be finished by polishing, PVD coating or galvanizing. The installation on the plastic, which is primarily described here, is preferred, but it is also possible to realize joint positions offset to the inside of the temple, which make the joint invisible from the outside when the temple is in the open position, thus also making the choice of the temple structure height highly flexible.

[0047] Furthermore, according to the application, the temple part, preferably comprising a temple insert, is completely enclosed in the plastic of the temple. Thus, the joint can no longer be seen from the outside. It is particularly preferred in this case that the plastic is an acetate, in particular cellulose acetate or a polyamide, in particular laser sintered polyamide 12.

[0048] According to the application, different embodiments for fixing the spectacle joint according to the application on the frame are preferably used. The spectacle joint according to the application can be fixed on the frame by means of immersion, riveting, screwing, gluing, casting, pressing. If the components of the front part of the spectacle frame consist of metal or alloy, the fixing of the joint can be achieved by means of fusion welding or brazing or other processes for joining metal materials together. The respective joining methods and processes mentioned here require different optimum structures of the joint front part, such as immersion mushroom, screw dome, adhesive pin, etc., but can vary independently of the joint function according to the application.

[0049] Furthermore, according to the application, different embodiments for mounting the spectacle joint according to the application on the temple are also preferably used, which can also be designed variably. In this case, the joint according to the application is preferably immersed, hot-riveted, hot-formed or pressed into the plastic temple or temple end. However, the components can also be joined by means of gluing, screwing, riveting, casting, pressing or other known joining techniques. If the components of the temple consist of metal or alloy, the fixing of the joint can be achieved by means of fusion welding or brazing or other processes for joining metal materials together. Furthermore, according to the application, a temple insert in the form of a wire or sheet metal is formed for the plastic temple, which is directly connected to the spring housing of the spectacle joint according to the application. Furthermore, according to the application, a metal temple with the spectacle joint according to the application is produced integrally in such a way that the spring housing does not extend in the temple insert, but in the metal temple.

[0050] With regard to the component arrangement described so far, in which the retaining flange is mounted on the front side, the shaft, the pin and the spring are arranged on the temple side assembly, the elongated helical spring is arranged in the temple body in a space-saving manner. However, according to the application, the reverse orientation of these components is also provided. By shortening and widening the spring element or by using another spring solution, for example in the form of a leaf spring or an elastomer molding or a rubber molding, which can be accommodated in the front part, the entire spectacle joint according to the application can be mounted in the reverse arrangement. This arrangement also shows an embodiment of the spectacle joint according to the application. It is clear to the person skilled in the art that the arrangement of the components can also be derived in part from the aforementioned embodiments in the reverse arrangement of the components and that such embodiments can be known from the present description.

[0051] The following examples illustrate the application in more detail without limiting the scope thereof. The application and its embodiments are explained in detail in conjunction with the drawings.

[0052] Figure 1Fig. 1 is an exploded perspective view of a spectacle joint according to the application. The spectacle joint 1 consists of a front part 2 and a temple part 3, which are designed in such a way that they can hook into each other. The front part 2, which can be integrated into the front of the spectacles by means of a mounting device 12, has a retaining flange 9, which is arranged in the direction of the spectacle temple. Bearing hooks 13 are arranged on the outer surfaces of the two mutually opposite sides of the retaining flange 9. The bearing hooks 13 can be milled into the respective side of the retaining flange 9, for example. The retaining flange 9 is dimensioned in such a way that it can be inserted and hooked into the hollow body of the temple part 3 of the joint 1. In addition, the front part 2 also has a base plate 11, which serves different purposes. The base plate 11 can serve as a stop for the temple part 3 and / or prevent the undesired disassembly of the joint parts 2, 3. The second part of the joint 1 is called the temple part 3. The temple part 3 has means for accommodating the front part 2. The accommodation means are built in the form of a cube, the inside of which is open, wherein two sides of the cube, i.e. the front side which, in the mounted state of the joint, is directed towards the front part 2, are completely removed, the longitudinal sides which, from the front side of the cube, extend in the direction of the temple insert 10 are partially removed, and the remaining parts of the cube sides comprise a bevel 8 at the side edge which is directed towards the front. It is advantageous to bevel the corners of the mutually opposite cube sides in order to be able to hook the retaining flange 9 into the open cube. Short rotary shafts 6 are arranged on the inner sides 5 of the cube, which are the inner sides of the mutually opposite cube sides. The rotary shafts 6 have a height which enables the hooking of the bearing hooks 13, but are also spaced apart from each other by a sufficient distance in order to guide the spring element 4 through when the joint is mounted. In order to insert the spring element 4 into the temple insert 10, the accommodation means in the form of a cube have an opening (not shown) on the side which is directed towards the temple insert 10. In this case, the opening is spatially connected to the spring housing 7, which is part of the temple insert. The spring housing accommodates the spring element 4, so that the spring element 4 exerts the required spring force on the retaining flange 9 of the front part 2 and puts the short rotary shafts 6 and the bearing hooks 13 under spring tension.

[0053] The third component of the joint 1 is the spring element 4. The spring element 4 is inserted into the spring housing 7 when the joint is mounted. In this case, the spring element 7 exerts a spring force on the retaining flange 9 of the front part 2 and puts the short rotary shafts 6 and the bearing hooks 13 under spring tension. In the open and closed state of the joint, the spring element 4 is in a relaxed state, so that the wear of the spring force remains low.

[0054] Figure 2 Fig. 2 is a partial sectional view of the spectacle joint according to the application in three state positions during the mounting of the joint. In order to assemble the joint 1, the spring element 4 is first inserted into the spring housing 7 of the temple part 1. Figure 2a shows how the holding flange 9 of the front part 2 is inserted into the open cube of the temple part 3. Here, the holding flange 9 is oriented such that the open side of the bearing hook 13 is aligned with the rotation axis 6. At the same time, the spring element 4 is put under tension by the holding flange 9. When the rotation axis 6 is snapped into the bearing hook 13, the holding flange 9 is moved laterally in the direction of the rotation axis 6, as shown in Figure 2 b. Figure 2 b shows that the rotation axis 6 is surrounded by the bearing hook 13, that the front part 2 is now movably supported and that it can be moved into the open state of the joint, as indicated by the arrow above the mounting device 12. When the joint is in the open state, the spring element 4 rests against the rear end of the holding flange 9 and is in a relaxed state. By moving the front part 2 in the opposite direction, the holding flange 9 exerts pressure on the spring element 4, and when the closed state is reached, the spring element 4 relaxes and then rests against the side wall of the holding flange.

[0055] It is particularly preferred that the working surface of the holding flange be shaped such that, in the angular range of 108° to 90° before the temple rests against the front part, there is no longer an inwardly acting spring force, but only a transmission adjustment.

[0056] Thus, Figure 2 shows how the tool-free assembly of the joint is achieved by joining these components, namely the front part 2, the spring element 4 and the temple part 3.

[0057] Figure 3 is a sectional view of a spectacle joint according to the application. As shown, the joint 1 is in the open state. The front part 2 is hooked in the temple part 3. Due to the nature of the sectional view, the rotation axis and the bearing hook are not shown. The holding flange 9 rests against the spring element 4. The spring element 4 itself consists of several components. First, a pressure spring 14 is shown, which rests against or is firmly or detachably connected with a pin 15. The pin 15 is preferably composed of a material which has the same hardness as the front part 2 and / or the holding flange 9 or a lower hardness compared to the front part and / or the holding flange, in order to reduce wear to a minimum when the joint is moved. In this way, in the event of excessive wear, the pin 15 can be replaced as required. These materials can be selected from nickel silver, bronze, softer steel or low-friction plastics. The forwardly directed portion of the pin 15 can also be rounded to hemispherical, as required. According to the application, it is also conceivable that only the forwardly directed portion of the pin 15 is selected from the aforementioned materials. However, according to the application, the pin 15 or the forwardly directed portion of the pin 15 is also coated with a slideable plastic. The spring element 4 is embedded in a spring housing 7. The spring housing 7 is in the form of a cavity, preferably in the form of a drilled hole inside the temple insert 10.

[0058] In another preferred embodiment, the front face of the retaining flange 9, against which the pin 15 abuts, which is in sliding contact with the retaining flange 9, can be hemispherical or otherwise rounded. This helps to reduce friction, since the surface area in contact with one another is small. By this means, the frictional effect between the components can also be reduced.

[0059] Figure 4 Three views of the spectacle joint according to the application in three different positions along the longitudinal axis.

[0060] Figure 4 a is a view of the side area of the open joint. Here, the joint itself is not visible due to the shape and size of the base plate 12. Figure 4 b is a view of the upper or lower area of the open joint. The joint itself is also not visible here. Only the bevel of the cube housing the retaining flange is visible. In order to improve the mounting solution of the temple insert in plastic or other materials, surface structures 17 are shown on the outside of the spring housing. The surface structures 17 can have any shape in order to best secure the temple insert in the temple. Figure 4 c is an internal view of the open spectacle joint. The individual components and features of the joint according to the application are clearly shown.

[0061] List of reference signs

[0062] 1 spectacle joint

[0063] 2 front part

[0064] 3 temple part

[0065] 4 spring element

[0066] 5 cube inside

[0067] 6 rotation axis

[0068] 7 spring housing

[0069] 8 bevel

[0070] 9 retaining flange

[0071] 10 temple insert

[0072] 11 base plate

[0073] 12 mounting means

[0074] 13 bearing hook

[0075] 14 pressure spring

[0076] 15 pin

[0077] 16 cavity / drill hole

[0078] 17 surface structure

Claims

1. A joint for a spectacle frame with temples, wherein the joint (1) consists of a front part (2), a temple part (3) and a pressure spring element (4), wherein the temple part (3) is formed by a cube that is open toward the front, along one side and on the inside, and wherein short rotation axes (6) facing inward are arranged on mutually opposite inner sides (5) of the open cube, and wherein the front part (2) is constructed in the form of a retaining flange (9), wherein the retaining flange (9) is designed to be inserted into the open end of the temple part (3). In the open cube, bearing hooks (13) in the form of grooves are arranged on two opposite outer surfaces of the retaining flange (9), and the bearing hooks can be hooked into the short rotation axis (6) of the temple part (3), so that the front part (2) and the temple part (3) can be connected to each other in a hinged manner, and the pressure spring element (4) is arranged between the front part (2) and the temple part (3), so that the front part (2) is movably fixed on the rotation axis (6) of the temple part (3).

2. The connector according to claim 1, wherein The temple part (3) has an inlay (10), which extends rearward from the temple part (3) to the temple of the glasses, wherein the inlay (10) is designed to be inserted into the temple of the glasses.

3. The joint according to claim 2, characterized in that The insert (10) has a cavity (16) for forming a spring housing (7), and the temple part (3) has a borehole at the rear wall of the open cube, so that the compression spring element (4) can be inserted through the temple part into the cavity (16) of the insert (10).

4. A joint according to any one of the preceding claims, characterized in that The front part (2) also has a base plate (11) which is arranged in front of the retaining flange (9).

5. The joint according to claim 4, characterized in that The base plate (11) is constructed so that when the temples of the eyeglasses are in the open state, the base plate (11) covers the front open side of the cube of the temple part (3).

6. The joint according to claim 4, characterized in that A connecting element (12) is arranged on the front side of the base plate (11), which is suitable for fixing a frame for eyeglasses.

7. The connector according to claim 1, wherein The retaining flange (9) has a radius at the outer rear side and a rounded edge at the inner rear side.

8. The connector according to claim 1, wherein: The compression spring element (4) consists of a compression spring (14) and a pin (15), wherein the pin (15) is arranged in the direction of the retaining collar (9).

9. The joint according to claim 8, characterized in that The retaining flange (9) is formed on the side facing the pin (15) so that a constant pressure is applied to the compression spring (14) within an angular range of 90° to 108° between the joint parts.

10. The joint according to claim 9, characterized in that The pin (15) is connected to the compression spring (14) in a fixed or detachable manner.

11. A joint for a spectacle frame with temples, wherein the joint (1) consists of a front part (2), a temple part (3) and a pressure spring element (4), wherein the front part (2) is formed by a cube which is open toward the front, along one side and on the inside, wherein short rotation axes (6) facing inward are arranged on mutually opposite inside sides (5) of the open cube, and wherein the temple part (3) is designed in the form of a retaining flange (9), wherein the retaining flange (9) is designed to be inserted into the front part (2). In the open cube, bearing hooks (13) in the form of grooves are arranged on two opposite outer surfaces of the retaining flange (9), and the bearing hooks can be hooked into the short rotation axis (6) of the front part (2), whereby the front part (2) and the temple part (3) can be connected to each other in an articulated manner, and the pressure spring element (4) is arranged between the front part (2) and the temple part (3), so that the temple part (3) is movably fixed on the rotation axis (6) of the front part (2).

12. The joint according to claim 1 or 11, characterized in that The compression spring element (4) is in the form of a leaf spring or an elastomer component or a rubber molding.

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