WO2013110205A1

WO2013110205A1 - Eyeglasses having a snap-action hinge

Info

Publication number: WO2013110205A1
Application number: PCT/CH2013/000013
Authority: WO
Inventors: Roland Eberle; Monika FINK; Stefan Schneller
Original assignee: Kaufmann, Sandra
Priority date: 2012-01-27
Filing date: 2013-01-23
Publication date: 2013-08-01
Also published as: CH706026A2

Abstract

The invention relates to an eyeglasses frame (1) comprising an eyeglasses front (2) for holding at least one eyeglasses lens (8a, 8b) and comprising at least one holding device (10a, 10b) which is connected to the eyeglasses front (2) via a rotational joint arrangement (4a, 4b). The rotational joint arrangement (4a, 4b) is designed such that the holding device (10a, 10b) can be pivoted out of a position of rest into a position of use and vice versa. If a specific pivoting angle is exceeded, the holding device (10a, 10b) snaps over in the direction of the other position. The rotational joint arrangement (4a, 4b) contains a first and a second functional arm (5a, 5b,), which are connected to each other at a first end portion (7a) and each form first articulated connecting means (9a, 9b) at a second end portion (7b), which each define an axis of rotation (D1, D2). The articulated connecting means (9a, 9b) of the first and second functional arms (5a, 5b) are arranged offset with respect to each other in a plane lying at a right angle to the rotational axes (D1, D2).

Description

GLASSES WITH SNAP HINGES

The invention relates to the field of vision aids and fashion accessories and relates to a spectacle frame with a spectacle front for receiving at least one spectacle lens and with at least one holding device, which is connected to the spectacle front via a hinge assembly. The spectacle front and the holding device each form or are part of a connection partner for the swivel joint arrangement. The hinge assembly is designed so that the holding device is pivotable relative to the spectacle front from a rest position to an operating position and vice versa, wherein the holding device snaps when exceeding a, forming a Umschnapppunkt pivoting angle in the direction of the other position.

Furthermore, the invention relates to a hinge assembly and a pair of glasses with a spectacle frame and a hinge element for use in a spectacle frame. In spite of numerous alternatives for the correction of ametropia, glasses still enjoy great popularity even today. This partly because the glasses are not only used as a visual aid, but sometimes also used as a fashion accessory, for example, to give his appearance a special accent. On the one hand, glasses therefore have to fulfill certain functional requirements and, on the other hand, have to take the fashion trend into account. Accordingly, the appearance and texture of the shape, material and color of the glasses also changes continuously.

An essential functional component of a pair of glasses, which also contributes to the appearance of the glasses, is the so-called spectacle hinge. This connects the temple with the spectacle front and allows the swinging of the temple from a rest position in which it is pivoted and is substantially parallel to the spectacle front, in an operating position in which the temple is swung and is substantially perpendicular to the spectacle front.

Glasses hinges are subject to high functional requirements. On the one hand, these should be as long-lasting as possible and low in wear and maintenance. On the other hand, the spectacle hinges must also be extremely robust against bending stress of the spectacle frame as well as punches. In particular, the eyeglass hinges must also be able to absorb an overbending of the eyeglass temple from its operating position in the swing-out direction. Furthermore, the spectacle hinges should also be as simple as possible and inexpensive to manufacture and assemble on the spectacle frame.

DE 100 17 732 describes a spectacle frame with a spectacle hinge according to the introduction to the description. Although the spectacle hinge is made up of simple inexpensive mechanical elements, it comprises a plurality of individual parts and takes up comparatively much space. As a result, the eyeglass hinge is expensive to install and, if necessary, does not meet the aesthetic requirements for a spectacle frame. It is therefore an object of the present invention to provide a hinge assembly for a spectacle frame, which is simple in construction and in the assembly, takes up little space, and which consists of as few items as possible and is inexpensive to manufacture.

The object is solved with the features of the independent claims 1, 16, 17 and 20. Further preferred embodiments and developments of the invention will become apparent from the dependent claims. The hinge assembly of the spectacle frame is characterized in that it comprises a first and a second functional arm, which are connected to one another at a first end portion. The first functional arm forms on a second end section a first articulation means, in particular a articulation element, which defines an axis of rotation in operative connection with a first connection partner. The first functional arm is thus connected via the articulation means to the spectacle front or the holding device.

The second functional arm forms at its second end portion a guide means, in particular a guide element. The guiding agent is in contact with its binding partner, i. with the spectacle front or the holding device in such a mechanically operative connection and guides the second guide arm in the pivoting movement such that during pivoting of the first functional arm about the axis of rotation at least one of the functional arms, in particular the second functional arm, and / or a connecting portion between the two functional arms is elastically deformed.

The two function arms are now either: a. with their first end portion connected to the holding device or form this, and connected with its second end portion to the eyeglass front, or b. with their first end portion connected to the spectacle front or form this, and connected with its second end portion with the holding device.

According to a first embodiment, the first connection partner forms a guide member, which cooperates with the guide means on the second functional arm. The guide means on the second end portion of the second functional arm now acts during pivoting of the holding device from a rest position to an operating position or vice versa with the guide member such that the second end portion is moved away during the pivoting movement to Umschnapppunkt from the axis of rotation of the first hinge means.

That is, the distance between the second end portion and the rotation axis increases toward the snap point and reaches its maximum value therein. After exceeding the Umschnapppunktes the distance decreases again.

This increase in distance causes an increasing compressive stress in the first functional arm and thereby an elastic deformation in at least one of the functional arms and / or in a connecting section between the two functional arms. The compressive stress and thus the elastic deformation reaches its maximum at the snap point. After crossing the Umschnapppunktes the compressive stress decreases again and the elastic deformation is formed back.

For this purpose, the guide member preferably contains a guide stop for the guide means formed on the second end section of the second functional arm. The guide stop is preferably designed as a sliding guide, along which the guide means can slide during a rotational movement about the axis of rotation. The sliding surface of the guide stop preferably forms a curvature or an edge around which the guide means, which z. B. may be an Armendabschnitt, slides in a pivoting movement, changing its orientation. The guide stop can z. B. an exposed stop surface or a recess, in particular a guide groove with deflection in the groove bottom.

The arm end portion forming the guide means may be straight or curved. The arm end portion is preferably a free end portion of the second functional arm. The Armendabschnitt corresponds, for example, an extension of the arm portion of the guide arm.

The guide member may further form an end stop for the guide means, which limits further pivotal movement of the first connection partner or the function arms from a first position (eg, rest position) upon reaching a second position (eg operating position).

+

According to a second embodiment of the invention, the guide means on the second end portion of the second functional arm is also a first hinge means, in particular a hinge element, which defines a second axis of rotation. The articulation means of the first and second functional arm are now arranged offset in a plane orthogonal to the axes of rotation. The hinge means thus each define the geometric location of a rotation axis.

Accordingly, the substantially or exactly parallel to each other extending axes of rotation are also arranged offset from one another.

The holding device and the spectacle front are therefore via articulation, z. B. in the form of hinge elements connected to each other.

The staggered arrangement relates in particular to the mounted state of the functional arms. The two geometric axes of rotation and according to the first hinge means in the assembled state of the functional arms with respect to the The longitudinal direction of the functional arms behind one another and / or transverse to this longitudinal direction laterally offset or juxtaposed.

The two axes of rotation and correspondingly the first articulation means can be laterally offset or juxtaposed laterally and / or transversely to this longitudinal direction in the relaxed or non-assembled state of the functional arm with respect to the longitudinal direction of the functional arms.

According to one embodiment of the invention, the functional arms can be arranged parallel to one another in the relaxed or unassembled state. The axes of rotation defined by the associated articulation element are in this case arranged one behind the other with respect to the longitudinal direction of the functional arms. The functional arms and articulation element or the associated geometric axes of rotation lie here in one plane. The parallel course of the functional arms is only released during assembly under bias.

The staggered arrangement of the axes of rotation is preferably achieved in that one functional arm is shorter than the other functional arm. The functional arms are now connected according to a preferred first embodiment at the second end portion rotatably connected to the spectacle front. According to this variant, the functional arms are connected at their first end portion to the holding device or form it at least partially or completely. It is also possible that the functional arms according to a second embodiment at the second end portion are each rotatably connected to the holding device. According to this embodiment, the functional arms are connected at their first end portion to the spectacle front or at least partially form it. The functional arms of both embodiments mentioned above preferably each contain an arm section between the first and second end section, to which the articulation element or guide element is respectively attached endwise in the second end section.

The articulation element can be a projection leading away from the arm section at an angle or a projection. The Anformung is preferably designed as a hinge axis. The hinge axis is in particular in the form of a pivot pin or pin. The hinge axis is preferably bent at a right angle from the functional arm or its arm section. Other angular positions, which z. B. deviate up to 20 ° (degrees) from a right angle, are also conceivable. This embodiment is preferably used when the functional arms or the swivel element are formed from wire. However, the articulation element on the functional arm can also be designed in the form of a recess, depression, recess or passage opening into which a further articulation element can engage the spectacle frame. This embodiment is used in particular for functional arms of a sheet metal material application. It is also possible that the articulation means according to the second embodiment are formed differently on the two functional arms. That is, the first hinge means on a functional arm has z. As a Anformung as described above, while the other hinge means z. B. forms a recess as described above. Accordingly, the second articulation means described below on the spectacle frame are complementary to the first articulation means and therefore also formed differently.

It is also conceivable that both the first and the second hinge means comprises a recess, recess, recess or passage opening and formed as a separate component axis element, for. B. in the form of a pen, with cooperates with the first and second hinge means and forms a hinge connection. This happens z. B. by the axle member engages in the recess, recess, recess or passage opening of the hinge means. The functional arms are now, as already mentioned, in each case articulated with their first articulation means via second articulation means on the front of the spectacle or on the holding device rotatably on the latter. The second hinge means are arranged correspondingly on the spectacle front or the holding device. They serve in cooperation with the first articulation means as a guide for the formation of a stable axis of rotation on the spectacle front or on the holding device. The axis of rotation is preferably stationary relative to the spectacle front.

The second hinge means are preferably formed complementary to the first hinge means. You can z. B. in the form of indentations, depressions, receptacles or through holes, in which engage the present in the form of projections, projections and in particular hinge axes first hinge means or hook.

However, it is also conceivable that, conversely, the second articulation means are formed on the spectacle front or on the holding device by formations or projections, and in particular by articulation axes, which are attached to the spectacle front or to the holding device. The functional arms, on the other hand, each have at the second end portion a first articulation means, complementary to the second articulation means, in the form of a recess, indentation, receptacle or passage opening for receiving the second articulation means.

In analogy to the reverse embodiment described above, between the first and second articulation means, it is also possible for the two articulation means, which are assigned to a first functional arm, to be formed inversely to the two articulation means assigned to the second functional arm. The above remarks on the first and second hinge means also apply to the first embodiment variant. In this case, however, the statements relate only to the one functional arm with the articulation means and the corresponding connection partner.

The spectacle front is preferably designed as a spectacle frame. This serves to accommodate the lenses and is z. B. closed or open. In other words, the spectacle frame comprises the spectacle lenses partially or completely. However, the lenses may also be frameless held by the spectacle frame. In this case, the spectacle front in each case comprises a lateral fastening device, via which on the one hand the spectacle lenses are held laterally, and which on the other hand is connected to a holding device via the pivot joint arrangement. The hinge assembly may also be part of the lateral attachment device here.

The holding device is used to hold the glasses on the head of the wearer. The holding device preferably comprises a holding arm. The support arm is in the broadest sense an elongated element, which is directed in the swung-out state, ie in the operating position, to the ears of the wearer out. The elongate element preferably extends to the ears. The glasses can, for example, by rich concern of the holding arms on the head, z. B. in the temple, be held. For this purpose, it is important that, as explained in more detail below, the functional arms of the swivel joint arrangement also have a prestressing in the operating position and, in the event of a further swiveling out of the operating position, against the rest position, i. in an overbending, a restoring force in the operating position able to exercise.

The holding arm may be formed in a preferred variant as a headband or ear hook. In this case, the glasses are held by hooking the retaining bracket behind the ears on the head. In addition, however, it can also be provided that a holding band is attached to the holding arm, which is guided around the head for holding the glasses. The arm sections of the functional arms are preferably aligned on the spectacle frame in such a way that they are oriented transversely, in particular substantially orthogonally, to the front of the spectacle in the operating position. In addition, the arm sections preferably run parallel to the holding device or to the holding arm or lie in the same line. The functional arms are preferably connected to one another at their first end section directly via a connecting section. The connecting portion forms a bracket with the two functional arms.

However, the functional arms can also be attached with their first end portions, depending on the embodiment, to the holding device or the spectacle front and thus indirectly connected to each other. The functional arms can also be an integral part of the holding device or the spectacle front. In these ^'cases, the holder or the spectacles front takes over the function of the joint portion.

If the functional arms are connected to one another via a separate connecting section, they can form a one-part or multi-part rotary joint element with their respective arm sections, the first articulation means or guide means and the mentioned connecting section.

Such a hinge element can, for. B. made of metal, for. B. steel, especially spring steel. The swivel element may, for. B. wire or sheet or contain wire or sheet metal. However, the swivel element can also be made of plastic, z. B. made of reinforced, in particular fiber-reinforced plastic. Composite materials of several materials, such as metal and plastic, are also possible. According to a particularly preferred embodiment, the rotary joint element is integrally formed from spring steel sheet or spring steel wire or contains this. As already mentioned, the holding device can also be formed by the functional arms or by the rotary joint element itself. The arm sections preferably have a length adapted to the desired longitudinal extent of the holding device. As such, the functional arms, and in particular the swivel element, are generally formed of a material having elastic but dimensionally stable properties with corresponding recovery properties. The components mentioned are preferably made of metal, such as steel and in particular spring steel. The functional arms and in particular the rotary joint element are particularly preferably made of wire or sheet metal.

The wire or the sheet, in particular if it is formed from spring steel, is characterized by elastic properties, which cause the functional arms or the swivel joint element to find their way back to their original shape under a (elastic) deformation triggered by tensile and compressive stresses. However, these properties can also be achieved by other, in particular by the other materials mentioned.

The functional arms or the swivel element can also generally made of a plastic material, for. B. made of reinforced, in particular fiber-reinforced plastic, or include this. The functional arms or the swivel element can in particular be made of a fiber-reinforced plastic. This preferably also has the abovementioned mechanical properties. Composite materials made of several materials, such as metal and plastic, are also possible. Due to the staggered arrangement of the articulation means and thereby the associated axes of rotation according to the second embodiment, during a pivotal movement of the holding device about the two axes of rotation tensile and compressive stresses build in the functional arms, which during pivoting an increasing elastic deformation of at least one functional arm and / or of connecting the functional arms connecting portion to the Umschnapppunkt and thereby snap the function arms between two pivotal positions effect. If one considers the connecting straight line which leads through the two mutually offset axes of rotation and is orthogonal to them, then the respective holding arm or the functional arms closes with the connecting straight line in the relaxed state of the rest or operating position an angle, in particular an acute angle of less than 90 °.

If now the holding arm and with this the operating arms are swung from one to the other position, they pass a position in which the holding arm or the functional arms and the connecting line are rectified, so enclose no angle. This position, referred to below as the neutral position, corresponds to the snap-in or jump-around point. That the holding arm or the functional arms jump over the neutral position in the direction of the other position without any further effort.

This effect is based on the finding that the difference between the two distances between a common outermost point at the first end portion of the function arms and the first and second rotation axis in the neutral position is greatest. Correspondingly, pressure forces act on the first functional arm with a shortened distance from the first axis of rotation, while tensile forces are exerted on the second functional arm with an extended distance from the second axis of rotation. The above explanations are to be regarded merely as an attempt to explain the corresponding operations during the panning. However, the forces acting on the hinges forces can also be different when the experimental arrangement is changed.

The first and second articulation means, which define the geometric axes of rotation, are preferably arranged such that the position of the connecting straight line through the two axes of rotation corresponds to a pivoting position between the operating position and the rest position.

The functional arms or their arm portions are preferably mounted under bias. That is, the function arms have in each pivot position from the rest position to and with operating position on a bias. The bias is characterized by the fact that a tensile and on the other functional arm a compressive stress acts on the one functional arm.

This pretensioning is evident from the fact that the first and second articulation means can only be connected to one another using tensile and / or compressive stress and a corresponding elastic deformation of the rotary joint element or the functional arms.

Furthermore, the invention is intended to include spectacles which comprise a spectacle frame according to the invention, as described above, and at least one spectacle lens.

In the broadest sense, eyeglass lens is to be understood as meaning a translucent body which is worn to protect the eyes from weather influences, such as wind, cold, moisture or dust, from light and UV rays, to correct vision defects and / or for aesthetic reasons. The spectacle lens in particular comprises lenses which have an optical effect for correcting refractive errors have. The glasses may be made of glass, plastic or a composite material, for example.

The invention also includes a hinge assembly regardless of its application, but in particular for a spectacle frame described above.

The pivot assembly includes a first and second functional arm, which are connected at a first end portion with a first connection partner and at a second end portion with a second connection partner or form. The hinge assembly is designed so that the first connection partner is pivotable relative to the second connection partner, wherein the first connection partner snaps in the direction of the other position when exceeding a, a Umschnapppunkt forming pivot angle. The rotary joint arrangement is now characterized in that the first functional arm at a second end portion forms a hinge means which defines an axis of rotation in operative connection with the second connection partner. The second functional arm forms at its second end portion a guide means which is in mechanical operative connection with the second connection partner such that during the pivoting of the first functional arm around the axis of rotation at least one of the functional arms and / or a connecting section between the two functional arms elastically deformed becomes.

The first connection partner is preferred as a connection body and the second connection partner is preferably formed as a joint body. The functional arms are connected to each other at their first end portion indirectly via the connecting body or directly via a connecting portion.

The functional arms can in particular also integrally with the first connection partner, z. B. a support arm for a pair of glasses, be formed. The Functional arms are connected with their first end portion and possibly with their connecting portion with the first connection partner. The connection may be integral as mentioned. Furthermore, the functional arms, optionally together with the connecting portion, also be formed as a separate component or as separate components and, for. B. via a fabric, form and / or frictional connection, be connected to the first connection partner.

According to a first embodiment of the swivel arrangement, the second connection partner forms a guide member, wherein the guide means cooperates with the guide member at the second end portion of the second functional arm during pivoting of the first connection partner, that the second end portion of the second functional arm during the pivoting movement for Umschnapppunkt from the axis of rotation is moved away on the first hinge means.

The guide member and the guide means may be analogous to the guide member and analogous to the guide means of the above-described pivot assembly of the spectacle frame according to the first embodiment. The functional principle of the hinge assembly also corresponds to that of the spectacle frame according to the second embodiment variant.

According to a second embodiment, the guide means on the second end portion of the second functional arm is also a first hinge means. The functional arms thus form at a second end section in each case a first articulation means, which each define an axis of rotation. Embodiments of such articulation means have already been described above in connection with the second embodiment of a hinge assembly to the spectacle frame. The axes of rotation of the articulation means of the first and second functional arm are arranged offset to one another in a plane lying orthogonally to the axes of rotation. The functional arms are on their second articulation means End portion with a second connection partner and rotatably connected relative thereto.

The functional arms are arranged at an angle, in particular at a 90 ° angle to the associated rotary or pivot axis.

The second connection partner preferably comprises second articulation means. The functional arms are connected via their first articulation means to the second articulation means on the second connection partner. The second articulation means cooperate with the first articulation means such that in each case a common axis of rotation is formed around which the associated functional arm can be rotated or pivoted.

The erfmdungsgemäße hinge assembly can be used in addition to the glasses frame for any other objects application in which two parts must be hinged together. Thus, the pivot assembly z. B. in a case, such as glasses case, with snap function apply.

The invention also includes a hinge element for a hinge assembly described above for articulated connection of a first connection partner with a second connection partner, in particular for a spectacle frame according to the above description.

The hinge element is characterized by a first and second functional arm, which are connected to each other at a first end portion via a connecting portion. The first functional arm forms at a second end portion a hinge means which defines an axis of rotation. The second functional arm forms at its second end portion a guide means. According to a first embodiment variant, the guide means forms at the second end portion of the second functional arm a guide cooperating with a guide stop of a connection partner. The guide stop can be designed as described above in connection with the spectacle frame.

According to a second embodiment, the guide means on the second end portion of the second functional arm is also a first hinge means. The functional arms thus form at their second end section in each case a first articulation means, which each define a geometric axis of rotation. The hinge means of the first and second functional arms are in relaxed, i. not mounted state preferably arranged offset in a plane orthogonal to the axes of rotation offset from one another. A functional arm is preferably shorter than the other functional arm. The swivel element is formed one or more parts.

The rotary joint element differs from the other solutions described only in that it can be manufactured and sold independently of the spectacle frame because of the separate connecting portion between the two functional arms.

The disclosed in connection with the spectacle frame features of the hinge, in particular with respect to the functional arms and the hinge means are also applicable to the described as independent solution and claimed hinge assembly and the independently described and claimed pivot member. This applies in particular to the technical design, the shape and the materials and applies to all features unless they are specifically directed to the glasses frame. With regard to the hinge arrangement, the holding device corresponds to the first connection partner and the spectacle front to the second connection partner. The invention also relates to the use of a swivel element according to the preceding description in a spectacle frame according to the preceding description. The present hinge assembly is extremely simple in construction and correspondingly inexpensive to manufacture in its use as a spectacle hinge. The pivot assembly meets all functional requirements of a spectacle hinge. In particular, the pivot assembly is also characterized by a snap function, which ensures that the holding device remains in the rest or the operating position and can be converted only when applying an additional force from one to the other position.

Furthermore, the rotary joint arrangement according to the invention can be relatively easily integrated into the spectacle frame, in particular as part of the holding device. This ability to integrate gives the designer in turn a greater freedom of design in the development of new, fashionable eyewear models.

Depending on the need, the hinge assembly can also be designed so that the holding device relatively simple and without tools, eg. B. for replacing the holding device, is removable.

In the following, the subject invention will be explained in more detail with reference to a preferred embodiment, which is illustrated in the accompanying drawings. It shows:

FIG. 1 shows a perspective view of a first embodiment of a spectacle according to the invention according to the first embodiment variant;

FIG. 2a shows a side view of the spectacles according to FIG. 1;

FIG. 2b shows a plan view of the spectacles according to FIG. 1; FIG. 3 shows a perspective view of a one-part embodiment of a rotary joint element according to the first embodiment variant;

4 shows a perspective view of a second embodiment of an inventive spectacles according to the first embodiment; FIG. 5a: a side view of the spectacles according to FIG. 4;

FIG. 5b shows a top view of the spectacles according to FIG. 4;

6 shows a perspective view of a particular embodiment of an inventive spectacles according to the second embodiment;

Figure 7: a perspective view of a one-piece embodiment of a

Swivel element according to the second embodiment variant;

FIG. 8a: a side view of the spectacles according to FIG. 6:

FIG. 8b shows a plan view of the spectacles according to FIG. 6;

Figure 9: a schematic representation of the hinge assembly of FIG

6th

Basically, in the figures. same parts provided with the same reference numerals.

The spectacles 1 1, 61 according to FIGS. 1 and 2 a, 2 b as well as according to FIGS. 4 and 5 a, 5 b comprise a spectacle frame 1, 51 with a spectacle frame 2, 52, which spectacle lenses 8 a, 8 b; 58a, 58b. Laterally on the spectacle frame 2, 52 is in each case a pivotable mounting bracket 3a, 3b; 53a, 53b mounted, which are directed in the operating position (as shown in Figures 1, 2a, 2b and 4, 5a, 5b) to the ears of the wearer and provide the necessary support. The headband 3 a, 3b; 53a, 53b are each via a hinge assembly 4a, 4b; 54a, 54b connected to the spectacle frame 2, 52, wherein in the two present embodiments, the pivot assembly 4a, 4b; 54a, 54b also a part of the retaining bracket 3a, 3b; 53a, 53b trains. The hinge assembly 4a, 4b; 54a, 54b includes first and second functional arms 5a, 5b; 55a, 55b, which at a first end portion 7a; 57a are interconnected. The connection takes place in that the two functional arms 5a, 5b; 55a, 55b in the headband 3a, 3b; 53a, 53b pass over. You are with the headband 3a, 3b; 53a, 53b formed in one piece. The functional arms 5a, 5b; 55a, 55b also have a first end portion 7a; 57a opposite second end portion 7b; 57b on. The functional arms 5a, 5b; 55 a, 55 b point between the end portions 7 a, 7 b; 57a, 57b arm portions 6a, 6b; 56a, 56b. According to the first embodiment according to FIGS. 1 and 2a, 2b, the functional arms 5a, 5b at the second end section 7b each have a hinge axis 9a, 9b which leads orthogonally away from the associated arm section 6a, 6b. The joint axes 9a, 9b are designed as hinge pins, which engage in corresponding receiving openings 10a, 10b on the spectacle frame 2. The spectacle frame 2 forms for this purpose a first and second Anlenkseitenelement 12a, 12b, in which the receiving openings 10a, 10b are provided.

Introduced into the first receiving opening 10a, the first hinge axis 9a forms a first axis of rotation Dl. Introduced into the second receiving opening 10b, second hinge axis 9b forms a second axis of rotation D2. The two axes of rotation Dl, D2 are arranged offset in a plane orthogonal to the axes of rotation Dl, D2 to each other. The respectively leading through the two axes of rotation Dl, D2 connecting line Gl, G2 of the respective rotary joint 4a, 4b is parallel to a pivot position of the support arm 3a, 3b, which lies between the operating position and rest position of the support arm 3a, 3b. The connecting line Gl, G2 marks in particular the neutral position of the holding arms at the snap-on point.

According to the second embodiment according to FIGS. 4 and 5 a, 5 b, the functional arms 55 a, 55 b each have a receiving opening 59 a, 59 b on the second end section 57 b. In the receiving openings 59a, 59b, an orthogonal to the respective the hearing arm portion 56a, 56b away, attached to the eyeglass frame 52 hinge axis 60a, 60b. The joint axes 59a, 59b are designed as hinge pins. The spectacle frame 52 forms for this purpose a first and second Anlenkseitenelement 62a, 62b, on which the hinge axes 60a, 60b are mounted.

Introduced into the first receiving opening 59a, the first hinge axis 60a forms a first axis of rotation Dl. The second hinge axis 60b introduced into the second receiving opening 59b forms a second axis of rotation D2. The two axes of rotation Dl, D2 are arranged offset in a plane orthogonal to the axes of rotation Dl, D2 to each other. The connecting straight line Gl, G2 of the respective pivot joint 54a, 54b leading through the two axes of rotation D1, D2 runs parallel to a pivoting position of the support arm 53a, 53b, which lies between the operating position and rest position of the support arm 53a, 53b. The connecting line Gl, G2 marks in particular the neutral position of the holding arms at the snap-on point.

The functional arms 5a, 5b; 55a, 55b according to the two embodiments of Figure 1 and 4 may be made of metal, in particular of a wire or sheet, or of plastic. Due to the staggered arrangement of the two axes of rotation Dl, D2 of the first and second functional arm 5a, 5b; 55a, 55b build, as already mentioned, during a pivoting movement of the holding arm 3a, 3b; 53a, 53b in the functional arms 5a, 5b; 55a, 55b tensile and compressive stresses on. These voltages are around the neutral position, which is located between the operating and rest position, the largest and fall off both to rest and to the operating position again. As a result, a snap-over of the holding arm 3a, 3b; 53a, 53b reached at the neutral position in the direction of one of the two positions. In the figures 1 and 4, the rest position of a support arm 3 b '; 53b 'shown in dashed lines. If one considers the connecting straight line Gl, G2, which leads through the two mutually offset rotational axes Dl, D2 and is orthogonal to them, then the respective holding arm 3a, 3b closes; 53a, 53b and the functional arms 5a, 5b; 55a, 55b with the connecting line Gl, G2 in the relaxed state of the rest or the operating position an angle, in particular an acute angle of less than 90 °.

If now the holding arm 3a, 3b; 53a, 53b and with this the operating arms 5a, 5b; 55a, 55b pivoted from one to the other position, so they pass a position in which the holding arm 3a, 3b; 53a, 53b and the functional arms 5a, 5b; 55a, 55b and the connecting line Gl, G2 are rectified, so enclose no angle. This position, referred to below as the neutral position, corresponds to the snap-in or jump-around point. That the holding arm 3a, 3b; 53a, 53b and the functional arms 5a, 5b; 55a, 55b jump over the neutral position in the direction of the other position without any further effort.

This effect is based on the finding that the difference between the two distances between an outermost point on the first end portion of the function arms and the first and second rotation axis in the zero position is greatest. Correspondingly, pressure forces act on the first functional arm with a shortened distance from the first axis of rotation, while tensile forces are exerted on the second functional arm with an extended distance from the second axis of rotation.

FIG. 3 shows an embodiment of a one-piece rotary joint element 24. The hinge element 24 is formed from metal wire and comprises a first and second functional arm 25 a, 25 b, which are connected to one another at a first end portion 27 a via a bow-shaped connecting portion 28. The hinge element 24 further has a second end portion 27b, wherein the functional arms 25a, 25b between the first and second end portion 27a, 27b each comprise an arm portion 26a, 26b. The functional arms 25a, 25b each have a second end portion 27b in one Right angle from the associated arm portion 26a, 26b leading away first and second hinge axis 29a, 29b. The hinge axes are designed as hinge pins, which can engage in corresponding receiving openings on the spectacle frame (not shown).

The two joint axes 29a, 29b form rotary axes Dl, D2. The axes of rotation have both a lateral offset AI and a longitudinal offset A2 in the longitudinal direction of the rotary joint element 24. The spectacles 111 according to FIGS. 6 and 8a, 8b comprise a spectacle frame 101 with a spectacle frame 102, which accommodates spectacle lenses 108a, 108b. On the side of the spectacle frame 102 is in each case a pivotable retaining bracket 103a, 103b attached, which are directed in the operating position (as shown in Figures 6, 8a, 8b) to the ears of the wearer and provide the necessary support. The retaining clips 103 a, 103 b are each connected via a hinge assembly with the eyeglass frame 102.

The functional arms 105a, 105b, which are connected to one another via a connecting section 128, together with the hinge axis 109a and the stop element 109b, form a one-piece rotary joint element 104, which according to the present embodiment also simultaneously forms the retaining bracket 103a, 103b. The one-piece hinge element 104 is shown in FIG.

The hinge assembly includes first and second functional arms 105a, 105b which are interconnected at a first end portion 107a via a bent connecting portion 128.

The functional arms 105a, 105b further include a second end portion 107b opposite the first end portion 107a. The functional arms 105a, 105b have arm sections 106a, 106b between the end sections 107a, 107b. The first functional arm 105a forms at its second end portion 107b a hinge axis 109a which leads orthogonally away from the associated arm portion 106a and which engages in a corresponding receiving opening on the spectacle frame 102. For this purpose, the spectacle frame 102 forms a first and second articulation side element 1 12a, 12b, in which the receiving opening is provided.

The hinge axis 109a and the receiving opening form an axis of rotation Dl in operative connection with one another.

FIG. 9 shows an enlarged detail of the swivel arrangement according to FIGS. 6, 8a and 8b.

The second functional arm 105b forms at its second end portion a stop element 109b in the form of an arm end section. The first and second hinge side element 1 12a, 112b form a lateral guide stop 1 14 in the form of a groove-shaped recess (see Figure 9). The Armendabschnitt 109 b is disposed in the groove-shaped recess 1 14. The groove-shaped recess 1 14 is formed at right angles and has a deflection edge 15 in the groove bottom.

When pivoting the first functional arm 105a about the axis of rotation Dl from an operating position (functional arms shown by a solid line) in a rest position of Armendabschnitt 109b slides around the deflecting edge 1 15 and is deflected together with the second functional arm 105b accordingly. In this process, the distance d between the Armendabschnitt and the rotation axis Dl increases to the Umschnapppunkt. Thus, the Armendabschnitt 109b in the operating position to the rotation axis Dl toward a distance dl, which is smaller than the maximum distance d2, which occupies the Armendabschnitt 109b in the Umschnappposition (functional arms shown with dashed lines). Due to the increase in distance to the Umschnapppunkt towards compressive stresses are built up in the second functional arm 105b, which lead to an elastic deformation of at least one functional arm and / or a connecting portion between the functional arms. The compressive stresses and with these the elastic deformation are reduced after crossing the Umschnapppunktes to the rest position (functional arms shown with dotted line) by reducing the distance d between the Armendabschnitt 109b and the rotation axis Dl again (see distance d3). The groove-shaped recess 1 14 also has an end stop 1 16 for the end face of Armendabschnittes 109b. The end stop 1 16 limits a further pivotal movement of the guide arms 105a, 105b from the rest position upon reaching the operating position. The end stop 1 16 is formed here by a groove wall.

Claims

1. spectacle frame (1, 101) with a spectacle front (2, 102) for receiving at least one spectacle lens (8a, 8b, 108a, 108b) and with at least one holding device (3a, 3b, 103a, 103b), which with the spectacle front (2, 102) is connected via a hinge assembly, wherein the eyeglass front (2, 102) and the holding device (3a, 3b; 103a, 103b) each form a connection partner for the hinge assembly or are part of the hinge assembly, and the hinge assembly is so designed in that the holding device (3a, 3b; 103a, 103b) is pivotable relative to the front of the spectacle (2, 102) from an inoperative position to an operative position and vice versa, the holding device (3a, 3b; 103a, 103b) exceeding one, one Umschnapppunkt forming pivoting angle snaps toward the other position, characterized in that the pivot assembly includes a first and a second functional arm (5a, 5b, 105a, 105b), which at a first end portion (7a) are connected to one another, and the first functional arm (5a, 105a) forms at a second end section (7a, 107a) a first articulation means (9a, 109a), which in cooperation with a first connection partner (2, 102) has an axis of rotation (FIG. Dl) defined, and the second functional arm (5b, 105) at its second end portion (7b, 107b) forms a guide means (9b, 109b) which is in mechanical operative connection with the first connection partner (2, 102) in such a way that during the Pivoting of the first functional arm (5a, 105a) about the axis of rotation (D1) of at least one of the functional arms (5b, 105b) and / or a connecting portion (28, 128) between the two functional arms (5a, 5b; 105a, 105b) is elastically deformed.

2. Spectacle frame according to claim 1, characterized in that the two functional arms (5a, 5b; 105a, 105b): a. with their first end portion (7a, 7b, 107a, 107b) are connected to or form the holding device (3a, 3b; 103a, 103b) and with their second end portion (7a, 7b; 107a, 107b) with the spectacle front (2, 102), or b. are connected with their first end portion of the spectacle front or form this and are connected with its second end portion with the holding device.

3. Spectacle frame according to claim 1 or 2, characterized in that the first connection partner (2, 102) forms a guide member (1 14) and the guide means (109b) at the second end portion (107b) of the second functional arm (105b) during pivoting of the holding device (103a, 103b) from a rest position into an operating position or vice versa with the guide member (114) cooperates such that the second end portion (107b) during the pivoting movement to the Umschnapppunkt out of the rotational axis (Dl) of the first hinge means (109a) is moved away.

The spectacle frame according to claim 4, characterized in that the guide member (114) forms a guide stopper for an arm portion (109b) on the second end portion (107b) of the second functional arm (105b).

5. spectacle frame according to claim 1 or 2, characterized in that the guide means (9b) at the second end portion (7b) of the second functional arm (5b) is also a first hinge means which defines a rotation axis (D2), wherein the hinge means (9a, 9b) of the first and second functional arm (5a, 5b) are arranged offset in relation to one another in a plane orthogonal to the axes of rotation (D1, D2).

6. Spectacle frame according to one of claims 1 to 5, characterized in that the first articulation means of the first and / or second functional arm (5a, 5b, 105a):

a. a molding or a projection, in particular a hinge axis (9a, 9b;

109b) which is connected to the functional arm (5a, 5b, 105a); and or

b comprises a recess, recess, recess or passage opening, which is attached to the functional arm.

7. A spectacle frame according to claim 6, characterized in that the first and / or second functional arm (5a, 5b; 105b) has an arm portion (6a, 6b; 106a) and a joint axis (9a, 9a, 6b, 106a) angled away from the arm portion (6a, 6b; 9b, 109a), in particular in the form of a pivot pin or pin.

8. Spectacle frame according to one of claims 1 to 7, characterized in that the spectacle front as a spectacle frame (2, 102), in particular as a closed or open spectacle frame, for receiving at least one spectacle lens (8a, 8b, 108a, 108b) is formed.

9. Spectacle frame according to one of claims 1 to 8, characterized in that the holding device comprises a holding arm (3a, 3b, 103a, 103b), in particular a headband.

10. spectacle frame according to one of claims 1 to 9, characterized in that the first and / or second functional arm (5a, 5b, 105a) with its first hinge means (9a, 9b, 109a) via second hinge means (10a, 10b) on the Eyeglass front (2, 102) or on the holding device is rotatably articulated, and the second articulation means (10a, 10b) preferably: a includes a recess, recess, recess or passage opening, which is attached to the front of the glasses (2, 102); and or

b. a Anformung or a projection, in particular a hinge axis, summarizes, which are attached to the eyeglass front.

11. Spectacle frame according to one of claims 1 to 10, characterized in that the functional arms (5a, 5b) via their first end portion (7a) with the holding device (3 a, 3 b) or the spectacle front are connected.

12. spectacle frame according to one of claims 1 to 1 1, characterized in that the functional arms (5a, 5b) at its first end portion (7a) directly via a connecting portion (28, 128) or indirectly via the holding device (3a, 3b) or the glasses front are connected to each other.

13. Spectacle frame according to one of claims 1 to 12, characterized in that the functional arms (25a, 25b; 105a, 105b) together with the connecting portion (28, 128) and the first hinge means or the guide means (29a, 29b, 109a, 109b) form a one-piece hinge element (24, 104).

14. Spectacle frame according to one of claims 1 to 13, characterized in that the holding device (103a, 103b) by the functional arms (105a, 105b) and in particular by the pivot element (104) itself is formed.

15. Spectacle frame according to one of claims 1 to 14, characterized in that the functional arms (5a, 5b; 25a, 25b; 195a, 105b) and in particular the swivel element (24, 104) are made of metal, in particular of wire or sheet metal.

16. spectacles (11, 11) comprising at least one spectacle lens (8a, 8b; 108a, 108b) and a spectacle frame (1, 101) according to one of claims 1 to 15.

17. A pivot joint arrangement for the articulated connection of a first connection partner (3a, 3b, 103a, 103b) with a second connection partner (2, 102), in particular for a spectacle frame (1, 101) according to one of claims 1 to 15, with a first and second Functional arm (5a, 5b, 105a, 105b), which at a first end portion (7a, 107a) with a first connection partner (3a, 3b, 103, 103b) and at a second end portion (7b, 107b) with a second connection partner (2 , 102), and the hinge assembly is configured such that the first connection partner (3a, 3b; 103, 103b) is pivotable relative to the second connection partner (2, 102), the first connection partner (3a, 3b; 103a, 103b ) in the direction of the other position when a swing angle forming a snap-in point is crossed over, characterized in that the first functional arm (5a, 105a) forms a hinge means (9a, 109a) at a second end section (7b, 107b) in operative connection with the second connection partner (2, 102) an axis of rotation (Dl) defined, and the second functional arm (5b, 105b) at its second end portion (7b, 107b) a guide means (9b, 109b) is formed, which with the second connection partner (2, 102) is in mechanical operative connection such that at least one of the functional arms (5b, 105b) and / or a connecting portion (28, 128) is pivoted about the axis of rotation (D1) during pivoting of the first functional arm (5a, 105a) both functional arms (5a, 5b; 105a, 105b) is elastically deformed.

18. A hinge assembly according to claim 17, characterized in that the second connection partner (1 12a, 1 12b) forms a guide member (114) and the guide means (109b) at the second end portion (107b) of the second functional arm (105b) during pivoting of the first connection partner (103a, 103b) interacts with the guide member (1 14) in such a way that the second end portion (107b) of the second functional arm (105b) is moved away from the rotational axis (D1) on the first linkage means (109a) during the pivoting movement towards the point of interchange.

19. A hinge assembly according to claim 17, characterized in that the guide means (9b) at the second end portion (7b) of the second functional arm (5b) is also a first hinge means which defines an axis of rotation (D2), wherein the hinge means (9a, 9b) of the first and second Funktionsanns (5a, 5b) in a plane orthogonal to the axes of rotation (Dl, D2) are arranged offset from one another, and the operating arms (5a, 5b) via their hinge means (9a, 9b) at the second end portion (7b) with the second connection partner (2) and are rotatably connected relative thereto.

20. Swivel joint element (24) for a swivel joint arrangement according to one of claims 17 to 19 for the articulated connection of a first connection partner (3a, 3b; 103a, 103b) with a second connection partner (12a, 1.2b; 1 12a, 112b), characterized by a first and second functional arms (25a, 25b; 105a, 105b) which are connected to one another at a first end section (27a, 107a) via a connecting section (28, 128), and the first functional arm (25a, 105a) is connected to a second end section (25a, 105b). 27b, 107b) forms an articulation means (29a, 109a) which defines an axis of rotation (D1), and the second functional arm (25b, 105b) forms a guide means (29b, 109b) at its second end portion (27b, 107b).

21. A hinge element according to claim 20, characterized in that the guide means (109b) at the second end portion (107b) of the second functional arm (105b) is an arm portion which forms a guide stop.

22. Swivel element according to claim 20, characterized in that the guide means (29a) at the second end portion (27b) of the second functional arm (25b) is also a first hinge means (29b) defining a pivot axis (D2), the hinge means (29a , 29b) of the first and second functional arms (25a, 25b) lie in an orthogonal to the axes of rotation (D l, D2)

Plane offset from one another. Use of a swivel element (24, 104) according to any one of claims 20 to 22 for a swivel assembly in a spectacle frame (1, 101) according to any one of claims 1 to 15 or use of a swivel joint arrangement according to any one of claims 17 to 19 in a spectacle frame (1 , 101) according to any one of claims 1 to 1 5.