Eyeglass frame with interchangeable temples or temple arms and / or interchangeable bridge

The eyeglass frame with a metallic insert element in the connecting sections addresses the issue of mechanical stress and damage in interchangeable parts by enhancing stability and elasticity, ensuring safe and frequent replacements.

DE202025106397U1Active Publication Date: 2025-12-11E B M GMBH & CO BESITZ & VERW KG
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Patent Information

Application Number
DE202025106397
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-10-21
Publication Date
2025-12-11
Estimated Expiration
2035-10-31

AI Technical Summary

Technical Problem

Existing eyeglass frames with interchangeable parts suffer from mechanical stress and damage due to frequent exchanges, particularly in the connection or fastening mechanism, leading to material fatigue and increased risk of breakage over time.

Method used

The eyeglass frame incorporates a metallic insert element in the connecting sections of interchangeable temples and bridge, providing stability and elasticity to withstand tensile and shear forces during replacement, using a spring-elastic component to minimize damage.

Benefits of technology

The metallic insert element enhances the safety and durability of frame parts by absorbing mechanical stress, allowing for frequent and safe replacements without significant damage, thus extending the frame's lifespan.

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Abstract

Spectacle frame (1) of interchangeable spectacles, with interchangeable temples (2) and / or interchangeable bridge (2'), comprising a device for changing the temples (2) and / or the bridge (2'), with support elements (3) fixed to the edge of spectacle lenses and / or to a frame part (4) of the spectacle frame (1) for supporting the temples (2) and / or the bridge (2'), wherein each support element (3) is designed as a substantially rod-, rail- or plate-shaped component with a threaded pin (5) and an additional positioning pin (6), wherein the temples (2) and / or the bridge each have a connecting section (7) at their respective lens-side ends, wherein each connecting section (7) has a recess (8) adapted to the shape and size of the support element (3) and is designed for interchangeable positive-locking connection with a respective support element (3),characterized in that an insert element (9) made of a metallic material is arranged in the connecting section (7).
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Description

Technical field

[0001] The invention relates to a spectacle frame of interchangeable spectacles with interchangeable temples or temple arms and / or interchangeable bridge according to the preamble of claim 1. State of the art

[0002] Eyeglass frames that meet the needs of eyeglass wearers to change the optical impression of glasses in color and design and to vary them with the overall fashionable outfit are now well known.

[0003] Particularly popular are glasses where certain parts of the frame, such as the temples, temples, and / or bridge, can be exchanged or combined. With these interchangeable glasses, the wearer can relatively easily swap out the frame parts according to their wishes by repeatedly disconnecting and reconnecting the frame parts to the lenses or to a part of the frame itself.

[0004] Eyeglass frames of the type mentioned are known from the prior art, for example from EP1 877 853 B1 or from DE 10 2012 111 073 B4.

[0005] With interchangeable spectacles, the replaceable frame parts are often subjected to considerable mechanical stress during the exchange process, as high tensile, compressive, and / or shear forces are exerted when loosening and reconnecting the frame parts to the lenses or frames. Frequent exchange of frame parts can therefore lead to damage to the frame, for example, to the temples, temples, and / or bridge, particularly in the area of ​​their connection or fastening mechanism.

[0006] The risk of damage increases, particularly over time, for example due to material fatigue caused by aging processes and wear and tear in the connection or fastening mechanism, especially due to the increasing number of lens changes. Therefore, there is a fundamental need to further improve the frames of interchangeable lenses. Description of the invention

[0007] The object of the present invention is therefore to provide a spectacle frame for interchangeable spectacles with interchangeable temples or temple arms and / or with an interchangeable bridge, which overcomes the disadvantages of the prior art and allows for the safe replacement of spectacle frame parts, even with high frequency, while significantly reducing the risk of damage. This object is achieved according to the invention by the spectacle frame according to independent claim 1. Further advantageous aspects, details, and embodiments of the invention will become apparent from the dependent claims, the description, and the drawings.

[0008] The present invention provides a spectacle frame for interchangeable spectacles with interchangeable temples and / or bridge. The spectacle frame includes a device for changing the temples and / or bridge. Support elements for holding the temples and / or bridge are provided at the edge of the lenses of the interchangeable spectacles and / or on a frame component of the spectacle frame. Each of these support elements is designed as a substantially rod-, rail-, or plate-shaped component with a threaded pin and an additional positioning pin. The temples and / or bridge each have a connecting section at their respective lens-side ends.Each connecting section has a recess adapted to the shape and size of the support element and is designed for interchangeable, positive-locking connection with a respective support element. According to a particular aspect of the present invention, an insert element made of a metallic material is arranged in the connecting section.

[0009] The spectacle frame according to the invention, which can also be referred to as an interchangeable frame or a replacement frame, comprises interchangeable spectacle frame parts, namely, in particular, interchangeable temples or temple arms and / or bridge. For the purposes of the present invention, the "spectacle frame" thus has an associated interchangeable device, which can also be referred to synonymously as an interchangeable device or as an interchangeable mechanism, or in particular as a "device for changing the temples or temple arms and / or the bridge." The spectacle frame according to the invention can therefore also be understood as a spectacle frame with a device for changing the temples or temple arms and / or the bridge. Furthermore, in the present understanding, the "spectacle frame" or the interchangeable spectacle frame parts themselves can be considered an interchangeable device or...as a “device for changing the jaws or jaw brackets and / or the bridge” or as part of such a device.

[0010] The "device for changing the temples or temple arms and / or the bridge" refers specifically to those areas, sections, elements, and / or structures designed for the interchangeable connection and fastening of the spectacle frame components; that is, those components that form part of the connection or fastening mechanism. In particular, the "carrier elements" attached to the edge of the lenses and / or to the frame component for supporting the temples or temple arms and / or the bridge, as well as the "connecting sections" located at the respective lens-side ends of the temples or temple arms and / or the bridge, are considered part of the connection or fastening mechanism and thus a component of the "device for changing the temples or temple arms and / or the bridge."

[0011] The present spectacle frame can be designed for rimless glasses as well as for glasses with full or partial frames. In the case of rimless versions, the support elements are attached directly to the lenses. In versions for glasses with full or partial frames, the support elements – depending on the overall design of the spectacle frame – can be attached either to the lenses or to the frame component, i.e., the spectacle frame itself, or each support element can be attached to both the edge of a given lens and simultaneously to the spectacle frame.

[0012] The term "insert element made of metallic material," which, according to the invention, is arranged in the connecting section of the jaws or jaw brackets and / or the bridge, is understood here to mean an element or profile, or a structure, that stabilizes and reinforces the connecting section and is inserted into it. The insert element can therefore also be referred to as a metallic reinforcing element, a metallic reinforcing profile, a metal reinforcement, or a support, strengthening, or stabilizing element.

[0013] The insert element provided in the connecting section according to the invention and arranged or introduced therein increases the stability and strength of the connecting section, even if the material of the connecting section itself is brittle or if an increase in brittleness, in particular aging and / or wear-related brittleness, is observed. This minimizes the risk of breakage, especially of the connecting section breaking out, when replacing the jaws or jaw brackets and / or the bridge.

[0014] The insert element, arranged in each connection section and preferably integrated in a material-locking manner, thus not only provides the connection sections with fracture resistance but, due to its metallic design, also with improved flexural strength and elasticity. This allows for the compensation of acting thrust, tensile, and shear forces, such as those that occur particularly when loosening and re-establishing the connection with the support element during the replacement of the jaws or jaw clamps and / or the bridge.

[0015] Such forces acting on the connecting section occur primarily when the connecting section is pulled off and attached or slid onto the support element and result in high mechanical stress, especially because this requires a slight bending or "opening" (for example, on the order of tenths of a millimeter) of the recess in the connecting section that provides a form-fitting connection for the support element. Due to the elastic properties of its metallic material, this bending or "opening" can elastically support and secure the insert element, thereby partially absorbing or absorbing the mechanical stress on the connecting section and preventing it from breaking out. This significantly improves the safety of replacing spectacle frame parts, allowing for a greater number and frequency of safe replacements.

[0016] The insert element, which is preferably made entirely of metal and in particular may be made of stainless steel, is preferably embedded, for example completely embedded, in the connecting section provided at the respective glass-side end of the jaws or jaw brackets and / or the bridge. Alternatively, the insert element may also be made of other metals, in particular a precious metal such as gold.

[0017] The term "embedded" in this context means that the insert element is arranged approximately or almost completely, preferably completely, within the material used to manufacture the jaw or temple and / or bridge, particularly the respective connecting sections, which is preferably a plastic material, and is integrally contained, surrounded, or enclosed by it. "Embedded" or "completely contained" in this sense means that the insert element is surrounded on all sides by the material of the jaw or temple and / or bridge, with the exception of at most one end face located at the lens-side end of the connecting section facing the spectacle lens. Advantageously, this makes the insert element essentially invisible from the outside and also stabilizes the material of the connecting section.

[0018] The insert element is particularly elastic and, according to particularly preferred embodiments, can be formed by a spring-elastic component, in particular by a spring-elastic bent component produced by bending a rod- or plate-shaped metal material. Especially in these embodiments, the insert element can be understood as a materially integrated, and in particular, spring-like, metal profile. Due to its own spring elasticity or by means of its spring action, this profile provides the connecting section with sufficient elastic properties to withstand the mechanical stresses during the replacement of the spectacle frame parts in a protected and reinforced manner.

[0019] Advantageously, the insert element is U-shaped, particularly in a substantially U-shaped form. In these preferred embodiments, the insert element has a first and a second leg section as well as a connecting web section. Preferably, both the leg sections and the web section are embedded in the material of the corresponding connecting section.

[0020] Preferably, the insert element is designed such that the leg sections have a rectangular or substantially rectangular cross-section. Particularly in the case of such bent metal parts produced by bending a rod- or plate-shaped metal material as an insert element, the rod- or plate-shaped metal material used for production can already have the same cross-sectional shape as the leg sections. For example, the cross-sectional height of the respective leg sections is in the range of 0.2 mm to 0.8 mm, preferably from 0.4 mm to 0.6 mm, and particularly around 0.5 mm.

[0021] In this embodiment of a U-shaped insert element, it exhibits particularly good spring elasticity and is optimized to support the slight bending or "opening" of the recess in the connecting section which receives the support element in a form-fitting manner, and to absorb and dissipate the forces acting upon it.

[0022] Preferably, each connecting section of the present spectacle frame has a first and a second cheek section, wherein the cheek sections are arranged opposite each other with respect to a longitudinal axis of the recess and form respective longitudinal boundaries of the recess. The cheek sections can also be understood as side cheeks of the connecting section or as side cheeks of the interchangeable spectacle frame parts, namely the temples or temple arms and / or the bridge.

[0023] Particularly preferably, the insert element is arranged at least partially in the first and / or second cheek section, and in particular, integrated or embedded at least partially in the first and / or second cheek section. Thus, the interchangeable frame parts of the present eyeglass frame have metal-reinforced cheek sections or metal-reinforced side cheeks at their respective connecting sections, which significantly reduces the risk of the side cheeks breaking off when changing the frame parts and minimizes this risk.

[0024] Particularly in preferred embodiments where a U-shaped or stirrup-shaped insert element is integrated, special advantages arise when the first leg section of the insert element is embedded in the first cheek section and the second leg section of the insert element is embedded in the second cheek section. This ensures that both cheek sections or both side cheeks are simultaneously and equally reinforced with metal and act as springs together.

[0025] Advantageously, the recess in the connecting section defines a receiving space for at least the partial reception of the support element. This receiving space is bounded by a wall surface and features an insertion opening for the support element at the end of the connecting section facing the lens. The insert element is embedded in the material of the connecting section at a predetermined distance from the wall surface of the receiving space.

[0026] This ensures that the metallic material does not come into contact with the support element and does not protrude into or interfere with the receiving space. In this way, it is guaranteed that the sliding interaction of the boundary wall and the support element during the replacement process is not influenced or potentially impaired by the insert element. The internal dimensions and geometry of the receiving space are determined by the shape and design of the boundary wall and remain unaffected by the insert element.

[0027] Advantageously, the web section of the insert element is embedded in the material of the connecting section on one side of the receiving space opposite the end-face insertion opening. This allows the spring-like elastic effect of the U-shaped insert element to be particularly effective, since the open side of the insert opposite the web section coincides with the end-face insertion opening for the support element, thus ensuring unimpeded insertion of the support element and even facilitating it due to the elastic effect of the insert element.

[0028] Significant advantages arise from the fact that at least the respective connecting sections of the jaws or temples and / or the bridge are made of a plastic, in particular by injection molding, with the elastic insert element being embedded in the plastic of the respective connecting section. Because at least the connecting sections of the interchangeable frame parts, and preferably the interchangeable frame parts as a whole, are manufactured by injection molding, the insert elements can be integrated into the material during the production and manufacturing of the jaws or temples and / or the bridge. This can be achieved, for example, by injecting or casting a respective insert element directly into the plastic material of the corresponding connecting section during the injection molding of a jaw or temple and / or bridge.The insert element can, for example, be held in place at the free ends of the leg sections during the injection molding process by a retaining agent, whereby after completion of the injection molding process, in particular after the curing of the plastic material of the connecting section, the retaining agent can be removed, for example by breaking it off, peeling it off or the like.

[0029] Further advantages arise from the fact that the insert element, with its leg sections, extends to an end face of the connecting section. The insert element has end faces, particularly at the free ends of its leg sections, which are preferably visible from the outside and are flush or substantially flush with the end face of the connecting section. These visible end faces of the leg sections, flush with the end face of the connecting section, are created, for example, during manufacturing when the holding agent used in injection molding is removed after the plastic material of the connecting section has cured, thus exposing the end faces. Depending on the design, these visible end faces can serve as distinctive design elements of the interchangeable lenses.

[0030] Further developments, advantages, and possible applications of the invention will also become apparent from the following description of exemplary embodiments and from the figures. All features described and / or illustrated are, individually or in any combination, fundamentally the subject matter of the invention, irrespective of their compilation in the claims or their cross-reference. Brief description of the drawings

[0031] The invention will be explained in more detail below with reference to exemplary embodiments in conjunction with the drawings. The drawings show... Fig. 1 schematically depicts a perspective view of interchangeable spectacles with an embodiment of a spectacle frame according to the present invention; Fig. 2 schematically depicts a perspective view of interchangeable spectacles with a further embodiment of the spectacle frame according to the present invention; Fig. 3 in a roughly schematic and highly simplified representation a side view of an isolated support element; Fig. 4. A roughly schematic and highly simplified representation of a section of a spectacle lens embedded in a frame part of the spectacle frame with a support element attached to it in a perspective view; Fig. Figure 5 schematically shows a perspective view of an embodiment of an interchangeable jaw and Fig. Figure 6 shows a roughly schematic and highly simplified representation of an inside top view of the connecting section of an embodiment of an interchangeable jaw. Ways to implement the invention

[0032] The Fig. 1 and Fig. Figures 2 each show an embodiment of interchangeable spectacles with a respective spectacle frame 1 having interchangeable frame parts. The respective spectacle frame 1 is designed in a known manner to receive spectacle lenses 16 and can be configured in different embodiments. In the example of the Fig. Figure 1 shows a spectacle frame 1 of a rimless spectacle with interchangeable temples 2 and an interchangeable bridge 2', whereas the example of the Fig. Figure 2 shows a full-rim or full-frame spectacle with a frame part 4 that completely encloses the spectacle lenses 16, wherein in the exemplary spectacle frame 1 the Fig. 2 the jaws or jaw temples 2 are interchangeable. Although not shown as such in the figures, the present spectacle frame 1 can also be designed as a partial frame and have a frame part 4 which only partially frames the spectacle lenses 16.

[0033] To realize the interchangeable function, the spectacle frame 1, regardless of whether it is designed and intended for rimless glasses or for glasses with partial or full frames, includes a device for changing the temples or temple arms 2 and / or the bridge 2', which can be understood as a component of the spectacle frame 1 and is also referred to synonymously as an interchangeable device or as an interchangeable mechanism of the spectacle frame 1.

[0034] With this interchangeable device, the respective support elements 3 (in the Fig. 1 and Fig. 2 not visible, cf. Fig. 3 and Fig. 4) provided, which are fixed to the edge of the spectacle lenses 16 and / or to the frame part 4 of the spectacle frame 1 and which are designed to support the jaws or temples 2 and / or the bridge 2'.

[0035] With reference to the Fig. 3 and Fig. 4 is a support element 3 shown, namely in Fig. 3 in an isolated state in side view and in Fig. 4 in the state specified on the spectacle lens 16 or frame part 4. As can be seen from the Fig. 3 and Fig. As can be seen in Figure 4, each support element 3 is essentially a rod-, rail-, or plate-shaped component, which in the illustrated example is T-shaped and comprises a beam 3a and a shaft 3b arranged on the underside of the beam 3a. On one side of the component, for example the lower side where the shaft 3b extends away from the beam 3a, the support element 3 has a threaded pin 5 and additionally a positioning pin 6. The threaded pin 5 and the positioning pin 6 are preferably arranged extending from the shaft 3b and serve to fasten the support element 3 to the spectacle lens 16 or to the frame part 4 of the spectacle frame 1.

[0036] In the example of the Fig. In the 4th section, the threaded pin 5 is guided through a hole in the lens 16, and the positioning pin 6 is received in a hole in the frame part 4. Of course, particularly in the case of rimless glasses, both the threaded pin 5 and the positioning pin 6 can be fixed in holes in the lens 16. It is also conceivable that both the threaded pin 5 and the positioning pin 6 are received in holes in the frame part 4.

[0037] In the fixed state of the support element 3, its beam 3a and shaft 3b are arranged, by way of example, on the outer side of the spectacle lens 16 and the frame part 4, facing away from the face of the spectacle wearer. The threaded pin 5, which passes through a through-hole in the spectacle lens 16, can be fixed on the inner side of the spectacle lens 16 with a lock nut. The additional positioning pin 6 can also be provided with a receptacle in a through-hole and, if necessary, fixed with a lock nut. Alternatively, the additional positioning pin 6 can be received in a blind hole. The diameter of the threaded pin 5 and the positioning pin 6 is larger than the cross-sectional length of the shaft, so that the threaded pin 5 and the positioning pin 6 simultaneously form locking elements.

[0038] The interchangeable mechanism of the spectacle frame 1 includes corresponding connecting sections 7 on the temples or temple arms 2 and / or on the bridge 2' of the spectacle frame 1, specifically at the respective lens-side ends of these frame parts, as shown in the Fig. 5 and Fig. 6 is shown and will be explained in more detail below in connection with these figures. Fig. Figure 5 shows, as an example, the connecting section 7 using a perspective view of an interchangeable jaw 2 of the spectacle frame 1. Fig. Figure 6 shows a top view of the connecting section 7, specifically a top view of an "inner" side of the jaw 2, which, in the connected state, faces the outside of the spectacle lens 16 or the frame part 4.

[0039] Each connecting section 7 is designed for interchangeable and positive-locking connection with a respective support element 3 and has a recess 8 adapted to the shape and size of the support element 3, which extends along a longitudinal axis LA. The recess 8 of each connecting section 7 defines a receiving space 11 for the partially positive-locking reception of the support element 3, namely in particular for the positive-locking reception of the beam 3a and at least partially also of the shaft 3b and the threaded or positioning pins 5, 6.

[0040] The connecting section 7 of the present interchangeable device for the spectacle frame 1 has a first and a second cheek section 10, 10', wherein the cheek sections 10, 10' are opposite each other with respect to the longitudinal axis LA of the recess 8 and extend longitudinally along the recess 8 and along the receiving space 11, respectively. The receiving space 11 is bounded by a wall surface of an inner boundary wall 12 and has an end-face insertion opening 13 for inserting or plugging in the carrier element 3, which is fixed to the spectacle lens 16.

[0041] The recess 8 is adapted and designed in terms of size and shape to the support element 3 in such a way that, on the one hand, the connecting section 7 can be easily slid onto the support element 3, while on the other hand, a positive-locking connection between the support element 3 and the recess 8 is ensured, so that the jaws or jaw brackets 2 and / or the bridge 2' are sufficiently stable and firmly held by the support element 3. Furthermore, the connecting section with its recess is dimensioned so that the support element 3 is completely covered along its length. Thus, when a jaw or jaw bracket 2 or a bridge 2' is positively connected to the support element 3, the support element 3 is no longer visible from the outside.By means of detent points 12' arranged on the inside of the boundary wall 12 of the recess 8, which engage in a detent-like manner with the threaded pin 5 and the positioning pin 6 of the support element 3, the jaw or jaw bracket 2 and / or bridge 2' can be precisely positioned on the support element 3 and stably connected in a form-fitting manner.

[0042] According to a particular aspect, the connecting section 7 of the present interchangeable device for the spectacle frame 1 has an insert element 9 made of a metallic material, which is arranged in the connecting section 7. The insert element 9, preferably made of stainless steel, is embedded in the connecting section 7.

[0043] The insert element 9 is elastic, in particular spring-elastic, and in the illustrated example is a spring-elastic molded part, which is produced, for example, by bending as a bent molded part. The insert element 9 is U-shaped, in particular essentially U-shaped, and has a first leg section 9a, a second leg section 9b, and a web section 9c connecting the leg sections. In the example shown in the figures, the first leg section 9a of the insert element 9 is embedded in the first cheek section 10, and the second leg section 9b of the insert element 9 is embedded in the second cheek section 10'.

[0044] The insert element 9 is oriented such that its web section 9c is located on one side of the receiving space 11 opposite the end-face insertion opening 13 and is also embedded in the material of the connecting section 7. As particularly evident, Fig. As illustrated in Figure 5, the insert element 9 with its leg sections 9a, 9b extends to an end-face outer surface 15 of the connecting section 7. The respective end faces 14 of the insert element 9, provided at the free ends of the leg sections 9a, 9b, close in the illustrated example of the Fig. 5 are flush with the end face of the outer surface 15 of the connecting section 7 and are therefore visible from the outside.

[0045] The spring-elastic insert element 9 is manufactured, preferably by bending, from a rod-shaped metal or from metallic flat material. The rod-shaped metal or flat material used has, in particular, a substantially rectangular cross-section, whereby, in the present sense, the "cross-section of the rod-shaped metal or flat material used" is also understood synonymously as the "cross-section of the insert element". In the illustrated example of the Fig.5. The insert element 9 is made from a metal rod with a rectangular, approximately square, cross-section; that is, in the present understanding, the insert element 9 has a rectangular, in particular square, cross-section. One side length of the square cross-sectional area preferably lies in the range of approximately 0.2 mm to approximately 0.8 mm and is, for example, approximately 0.5 mm.

[0046] The embedding of the insert element 9 in the material of the connecting section 7 is such that the insert element 9 is arranged at a predetermined distance from the inner wall surface of the boundary wall 12 of the receiving space 11. In particular, the insert element 9 is cast into the material of the connecting section 7. For example, the insert element 9 is already injected or cast into the plastic material of the connecting section 7 by injection molding during the production of the jaws or jaw brackets 2 and / or bridge 2', which are manufactured from a plastic by injection molding.The insert element 9 can, for example, be held at its free ends of the leg sections 9a, 9b by a retaining means during the injection molding process, wherein after completion of the injection molding process, in particular after the curing of the plastic material of the connecting section 7, the retaining means are removed, for example by breaking off, peeling off or the like, thereby finally exposing the end faces 14 of the insert element 9.

[0047] The insert element 9, which is seamlessly integrated into the connecting section 7, particularly by being cast in place, stabilizes the cheek sections 10, 10' of the connecting section 7 and provides them with both fracture resistance and improved elasticity. This allows for better compensation of acting thrust, tensile, and shear forces. Such forces occur when replacing the spectacle frame parts, especially when removing and attaching or sliding the connecting section 7 onto the support element 3, and result in high mechanical stress on the cheek sections 10, 10' during this process. Due to its elastic properties, namely its own spring-like elasticity or spring action, the insert element 9, embedded in the material of the cheek sections 10, 10', prevents the cheek sections 10, 10' from breaking out.This significantly improves safety when changing parts of eyeglass frames, and allows for a higher number and frequency of safe replacement procedures. Reference symbol list 1 pair of eyeglasses 2. Cheek, cheek restraint 2' Bridge 3 Support element 3a Beam of the support element 3b Shaft of the support element 4 frame parts 5 threaded pin 6 Positioning pin 7 Connecting section 8 recess 9 Insert element 9a first thigh section 9b second thigh section 9c Bridge section 10, 10' first and second cheek section 11 Recording Room 12 Boundary wall 12 rest stops 13 Insertion opening 14 Front surface 15 front outer surface 16 spectacle lenses LA Longitudinal axis of the recess QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 1 877 853 B1

[0004] DE 10 2012 111 073 B4

[0004]

Claims

[1] Eyeglass frame (1) of interchangeable eyeglasses, with interchangeable temples (2) and / or interchangeable bridge (2'), comprising a device for changing the temples (2) and / or the bridge (2'), with support elements (3) fixed to the edge of eyeglass lenses and / or to a frame part (4) of the eyeglass frame (1) for supporting the temples (2) and / or the bridge (2'), wherein each support element (3) is designed as a substantially rod-, rail- or plate-shaped component with a threaded pin (5) and an additional positioning pin (6), wherein the temples (2) and / or the bridge each have a connecting section (7) at their respective lens-side ends, wherein each connecting section (7) has a recess (8) adapted to the shape and size of the support element (3) and is designed for interchangeable positive-locking connection with a respective support element (3),, characterized by , that an insert element (9) made of a metallic material is arranged in the connecting section (7). [2] Eyeglass frame according to claim 1, characterized by , that the insert element (9) is made of metal, in particular stainless steel, and is embedded in the connecting section (7). [3] Eyeglass frame according to claim 1 or 2, characterized by , that the insert element (9) is elastically designed. [4] Eyeglass frame (1) according to any one of the preceding claims, characterized by , that the insert element (9) is formed by a spring-elastic molded part, in particular by a spring-elastic bent molded part produced by bending a rod- or plate-shaped metal material. [5] Eyeglass frame (1) according to any one of the preceding claims, characterized by, that the insert element (9) is U-shaped, in particular substantially U-shaped, and has a first leg section (9a), a second leg section (9b) and a web section (9c) connecting the leg sections, wherein each of the leg sections (9a, 9b) in particular has a substantially rectangular cross-section. [6] Eyeglass frame (1) according to any one of the preceding claims, characterized by , that the connecting section (7) has a first and a second cheek section (10, 10') each, wherein the cheek sections (10, 10') are arranged opposite each other with respect to a longitudinal axis (LA) of the recess (8) and form respective longitudinal boundaries of the recess (8). [7] Eyeglass frame (1) according to claim 6, characterized by, that the insert element (9) is arranged at least section by section in the first and / or second cheek section (10, 10'), in particular is integrated or embedded at least section by section in the first and / or second cheek section (10, 10'). [8] Eyeglass frame (1) according to claims 5 and 6, characterized by , that the first leg section (9a) of the inlay element (9) is embedded in the first cheek section (10) and the second leg section (9b) of the inlay element (9) is embedded in the second cheek section (10'). [9] Eyeglass frame (1) according to any one of the preceding claims, characterized by, that the recess (8) in the connecting section (7) defines a receiving space (11) for the at least partial receiving of the support element (3), wherein the receiving space (11) is bounded by a wall surface of a boundary wall (12), wherein the receiving space (11) has an end-face insertion opening (13) for the support element (3) and wherein the insert element (9) is embedded in the material of the connecting section (7) at a predetermined distance to the wall surface of the receiving space (11). [10] Eyeglass frame (1) according to claims 5 and 9, characterized by , that the web section (9c) of the insert element (9) is embedded in the material of the connecting section (7) on one side of the receiving space (11) opposite the end face insertion opening (13). [11] Eyeglass frame (1) according to any one of the preceding claims, characterized by, that at least the respective connecting sections (7) of the jaws or jaw brackets (2) and / or the bridge (2') are made of a plastic, in particular by injection molding, wherein the elastic insert element (9) is cast into the plastic of the respective connecting section (7). [12] Eyeglass frame (1) according to any one of the preceding claims 5 to 11, characterized by , that the insert element (9) with its leg sections (9a, 9b) extends to an end face outer surface (15) of the connecting section (7), wherein the insert element (9) has, in particular, end faces (14) at its free ends of the leg sections (9a, 9b), which are preferably visible from the outside and, in particular, terminate flush or substantially flush with the end face outer surface (15) of the connecting section (7).

Citation Information

Patent Citations

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    DE102012111073B4

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    EP1877853B1