HINGE PART FOR A SPRING HINGE OF EYEGLASSES, EYEGLASS ELEMENT WITH SUCH A HINGE PART, METHOD FOR ARRANGING A HINGE PART IN A EYEGLASS ELEMENT, AND METHOD FOR MAKING A HINGE PART
Patent Information
- Application Number
- AT2021706531T
- Authority / Receiving Office
- AT · AT
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2020-02-18
- Filing Date
- 2021-02-16
- Publication Date
- 2026-04-15
- Estimated Expiration
- 2041-02-16
AI Technical Summary
Spring hinges for eyeglasses face challenges in cost reduction and adjustable prestressing, as conventional hinge parts are expensive to produce and cannot be easily adjusted for prestressing changes during use.
A hinge part design featuring a carrier with an urging surface that allows for adjustable anchoring position changes, combined with a bent sheet metal construction for cost-effectiveness, enabling precise adjustment and readjustment of spring element prestressing.
The solution allows for cost-effective production and adjustable prestressing of spring hinges, enabling precise setting and readjustment of spring element tension during both manufacturing and use, addressing the limitations of conventional hinge parts.
Abstract
Description
[0001] DESCRIPTION
[0002] Hinge part for a spring hinge of a spectacle, spectacle element with such a hinge part, method for arranging a hinge part in a spectacle element, and method for manufacturing a hinge part
[0003] The invention relates to a hinge part for a spring hinge of eyeglasses, an eyeglass element with such a hinge part, a method for arranging such a hinge part in an eyeglass element, and a method for manufacturing such a hinge part.
[0004] Spring hinges for eyeglasses are under considerable price pressure, especially as inexpensive plastic frames, particularly in the sports eyewear segment, are becoming increasingly popular. Eyeglass components such as temples or bridges can be manufactured very cost-effectively using plastic, especially through injection molding, 3D printing, or rapid prototyping. This also creates the requirement that a spring hinge for such eyeglasses, which can be manufactured very cost-effectively using these techniques and, due to the inherent flexibility of the plastic materials, actually doesn't require a spring hinge, must be inexpensive.
[0005] A hinge component for a spring hinge of a spectacle comprises a carrier with a first support surface, wherein a spring element is received by the carrier and bears against the first support surface with a first effective end. The carrier has anchoring elements configured to secure the carrier in a spectacle element in an anchoring position. The hinge component also comprises a temple component that is displaceably arranged within the carrier relative to the carrier and has a second support surface against which the spring element bears with a second effective end.
[0006] Such a hinge component has room for improvement in terms of its manufacturing costs. This is a major reason why eyewear manufacturers sometimes hesitate to use such hinge components in plastic frames, so as not to relinquish the cost advantage associated with plastic materials and, in particular, injection molding, but also 3D printing or rapid prototyping. Furthermore, conventional hinge components are either not adjustable or only adjustable with considerable effort with regard to the spring element's preload. In particular, the preload cannot be adjusted while the finished glasses are in use. This means, specifically, that the spring element's preload cannot be readjusted if it decreases during the glasses' use.
[0007] The invention is based on the objective of providing a hinge part for a spring hinge of eyeglasses, an eyeglass element with such a spring hinge, a method for arranging such a hinge part in an eyeglass element and a method for manufacturing such a hinge part, wherein the aforementioned disadvantages are at least partially reduced, preferably avoided.
[0008] The problem is solved by providing the present technical teaching, in particular the teaching of the independent claims as well as the embodiments disclosed in the dependent claims and the description.
[0009] According to a first aspect of the invention, the bracket part of the hinge part has a stop designed to abut the spectacle element in a mounting position of the bracket part. The carrier has a contact surface, particularly on the nose side, which is freestanding from the bracket part and is arranged such that the anchoring position of the carrier relative to the mounting position of the bracket part can be changed by applying a force to the contact surface. Advantageously, the preload of the spring element can thus be adjusted simultaneously. In particular, the preload of the spring element can be adjusted or changed by applying a force to the contact surface, thereby changing the anchoring position relative to the mounting position.Thus, it is possible, particularly during the manufacture of the spectacle element, especially when inserting the hinge part into the spectacle element, and also later during the use of spectacles containing the spectacle element, to precisely and reproducibly set the preload of the spring element to a predetermined value and / or readjust it if necessary.
[0010] According to a second aspect of the invention, which can be implemented alternatively or additionally to the first aspect, the support for the hinge element is designed as a sheet-bent part, made from a sheet, in particular a thin sheet. Specifically, the support is machined from a particularly thin sheet and bent into a final support shape. This represents a particularly cost-effective embodiment of the support, so that the hinge element as a whole can also be manufactured very cost-effectively.
[0011] In the following, a sheet metal bent part is understood to mean, in particular, a part that is machined or cut from a sheet of metal, especially a thin sheet of metal, preferably a steel sheet, in a basic shape and then bent into a final shape. The machining or cutting is preferably carried out by punching, laser cutting, wire cutting or wire EDM, or another suitable sheet metal processing method. Punching and bending can be carried out, in particular, in a progressive die.
[0012] The further developments and embodiments disclosed below are further developments and embodiments of both the first and second aspects of the invention. They are preferably also embodiments of a combination of the first and second aspects.
[0013] The fact that the spring element is received by the support means, in particular, that the spring element is encompassed or enclosed by the support. Specifically, the spring element is arranged within the support.
[0014] Preferably, the spring element is supported at its first effective end against the first support surface.
[0015] The term "effective end" of a spring element refers in particular to a region of the spring element with which it is operatively connected to another part, and into which forces can be introduced, especially to tension or untension the spring element. In one embodiment, the effective end can be an actual, spatial end of the spring element. However, this is not mandatory. Forces can also be introduced in a non-terminal region of the spring element.
[0016] The support preferably has a plurality of anchoring elements. The anchoring elements are preferably hook-shaped, in particular in the form of barbs.
[0017] The anchoring elements are specifically designed to anchor the carrier axially within the spectacle element, that is, to secure the carrier against tensile forces, particularly against being pulled out of the spectacle element in an axial direction. The anchoring elements are specifically designed to anchor the carrier in the spectacle element when it is inserted axially into a receiving recess on the spectacle element's side. The anchoring elements secure the carrier in the receiving recess on the spectacle element and, in particular, prevent it from being pulled out of the receiving recess in the opposite direction of insertion.
[0018] An axial direction, in this context, is understood to mean, in particular, a direction extending along the longest extent of the hinge part and / or in the direction of the longest extent of the spectacle element in which the hinge part is intended to be arranged. Specifically, when the hinge part is intended to be arranged on a wearer of spectacles that incorporate the spectacle element with the hinge part, the axial direction is a sagittal direction of the wearer. The wearer is the person wearing the spectacles. The sagittal direction is a front-to-back direction on the wearer's body.
[0019] The spectacle element is, in particular, a temple. However, it can also refer to the middle part of a pair of glasses.
[0020] The spring element is preferably designed as a coil spring.
[0021] The spring element rests with its first effective end against the first support surface and with its second effective end against the second support surface, in such a way that the spring element is tensioned, in particular compressed, between the first and second support surfaces when the stirrup part is displaced in the support in the direction of bringing the first and second support surfaces closer together. Conversely, the spring element is relaxed or relieved of tension when the stirrup part is displaced in the support relative to the support in such a way that the first and second support surfaces move away from each other.
[0022] The mounting position is, in particular, a position in which the temple part abuts the spectacle element when the hinge part is mounted or attached to the spectacle element.
[0023] The fact that the pressure surface is free from the bracket part means, in particular, that the pressure surface is accessible in the mounting position and, specifically, is not obstructed or covered by the bracket part. Specifically, the pressure surface is accessible through the bracket part or between parts of the bracket part. The anchoring position can be changed, in particular, relative to the mounting position by applying a normal force, i.e., a force acting perpendicular to the pressure surface, to the pressure surface.
[0024] The fact that the anchoring position is changed relative to the mounting position means in particular that a relative position of the anchoring position to the mounting position, especially a relative arrangement of the support relative to the stirrup part, is changed.
[0025] In particular, the anchoring position relative to the mounting position can be changed in a state of the hinge part mounted on the spectacle element by applying force to the pressing surface.
[0026] In a preferred embodiment, the hinge part consists of the support, the spring element, and the bracket part. In particular, the hinge part preferably has no further parts or elements. The hinge part is thus simple overall, consisting of few parts, and therefore particularly cost-effective.
[0027] The support is preferably formed as a sheet metal bent part from a sheet of steel, preferably from a sheet of stainless steel.
[0028] According to a further development of the invention, the stirrup part is designed as a sheet-bent component, made from a sheet of metal, particularly a thin sheet. The stirrup part is specifically punched, laser-cut, wire-cut, or wire-eroded from a sheet of metal and then bent into a final stirrup shape. In this way, the stirrup part can be designed particularly simply and cost-effectively.
[0029] The ironing part is preferably formed as a sheet metal bent part from a sheet of steel, in particular from a sheet of stainless steel.
[0030] The hinge part is particularly cost-effective if both the stirrup part and the support part are designed as sheet metal bent parts.
[0031] According to a further development of the invention, the bracket part is designed to encompass the spring element with two legs, each leg having a hinge eye. The bracket part is thus both simple and stable. In particular, the bracket part is designed as a two-lobed bracket part. Preferably, the bracket part is U-shaped, encompassing the spring element with its two legs. A hinge eye is arranged on each of these legs of the U.
[0032] Preferably, the stop has two stops, with each of the two stops being formed at one of the hinge eyes. Preferably, a stop surface is formed at each hinge eye, with the two stop surfaces forming the stop of the stirrup part.
[0033] According to a further development of the invention, the support and the bracket are designed as bent sheet metal parts and arranged in an interlocking configuration. This represents a hinge component that is both stable and easy and cost-effective to manufacture. In particular, the support preferably encircles the spring element and the bracket. The bracket, in turn, encircles the spring element and the support. The directions of encirclement are preferably oriented perpendicular to each other. Thus, the support encircles the spring element and the bracket along a first direction of encirclement; the bracket encircles the spring element and the support along a second direction of encirclement, and the directions of encirclement are oriented perpendicular to each other, that is, they are locally perpendicular to one another.
[0034] According to a further development of the invention, the anchoring elements are arranged on the support as a sawtooth profile, particularly laterally. This represents an efficient, simple, and cost-effective design for the anchoring elements, especially since the sawtooth profile can be formed during the machining of the support. In particular, the support with the sawtooth profile can be punched, laser-cut, wire-cut, or wire-eroded from a sheet. Preferably, the support—especially in its final form—has a base plate and a top plate, both of which have anchoring elements, particularly in the form of a sawtooth profile. The spring element and the stirrup are preferably arranged between the base plate and the top plate.
[0035] Preferably, the support has anchoring elements on both sides in the form of sawtooth profiles. This enables particularly efficient, symmetrical support of the support in the spectacle element. The invention also includes a spring hinge, which comprises a hinge part according to the invention or a hinge part according to one of the previously described embodiments. In conjunction with the spring hinge, the advantages already explained in connection with the hinge part are particularly realized.
[0036] The spring hinge preferably has a further hinge part that is pivotally connected to the hinge part. This further hinge part is preferably three-lobed, with the two hinge lobes of the bracket part engaging between the three hinge lobes of the further hinge part when the further hinge part is pivotally connected to the hinge part. Alternatively, the further hinge part is two-lobed, with a space remaining in the two-lobed further hinge part in a space between the two hinge lobes of the bracket part, which in the aforementioned case is filled by a central lobe of the three-lobed further hinge part. Manufacturing this design involves a wide channel between the hinge lobes of the further hinge part instead of two narrow slots.
[0037] The problem is also solved by creating a spectacle element with a hinge part, wherein the spectacle element has a receiving recess open towards one end face, and wherein a hinge part according to the invention or a hinge part according to one of the previously described embodiments is arranged in the receiving recess as the hinge part. The support of the hinge part is anchored in the receiving recess by the anchoring elements.
[0038] The temple piece preferably rests against the end face with the stop, and the wearer's contact surface is accessible via the end face, particularly through the opening of the receiving recess on the front side. In this way, it is possible to apply force to the contact surface when the hinged part is mounted on the spectacle element, thus pressing the wearer and its anchoring elements further into the receiving recess, while simultaneously holding the temple piece firmly in place against the end face of the spectacle element by the stop. The anchoring elements ensure that the wearer cannot be moved back towards the opening on the end face from the position reached within the receiving recess. Therefore, by applying force to the contact surface, the distance between the first and second support surfaces can be reduced, and thus the preload of the spring element can be adjusted, particularly increased.In particular, the preload of the spring element can be set to a predetermined value, or readjusted during use of the spectacle element, especially on the finished spectacles. Specifically, the preload of the spring element can be increased again if it has decreased due to wear and tear from using the spectacles. In conjunction with the spectacle element, the advantages already explained in connection with the hinge component are realized.
[0039] The receiving recess extends within the spectacle element, particularly in the axial direction, especially in the sagittal direction of a spectacle wearer when spectacles comprising the spectacle element are arranged on the spectacle wearer as intended.
[0040] The receiving recess is preferably enclosed on all sides, except for the opening at the end face. In particular, the hinge element can only be inserted, especially by being pressed, into the receiving recess from the end face.
[0041] The pressure surface is accessible, in particular, between the hinge eyes of the preferably U-shaped bracket part; it is therefore possible, in particular with a suitable tool, to reach between the hinge eyes of the preferably U-shaped bracket part and thus to access the pressure surface and apply a force.
[0042] The spectacle element is preferably made of plastic, particularly preferably by injection molding, especially as an injection-molded part, or by means of 3D printing or rapid prototyping. Particularly preferably, the spectacle element comprises or consists of a plastic selected from the group consisting of: polycarbonate, nylon, TR90, and acetate or cellulose acetate.
[0043] Preferably, the spectacle element is designed as a spectacle temple.
[0044] The invention also includes spectacles, comprising a spectacle element according to the invention or a spectacle element according to one of the previously described embodiments. In connection with the spectacles, the advantages explained in connection with the spectacle element and the hinge part are particularly realized.
[0045] In a preferred embodiment, the glasses have the spectacle element as a temple; in particular, the glasses preferably have two such spectacle elements as temples. Furthermore, the glasses preferably have a central part to which the temples are pivotally attached by means of hinge parts or joint parts according to one of the previously described preferred embodiments.
[0046] The term "middle part of the glasses" here refers to a spectacle element designed to hold at least one spectacle lens, preferably two spectacle lenses.
[0047] The middle part of the glasses is preferably also made of plastic, in particular of one of the aforementioned plastics.
[0048] Preferably, the glasses are designed as sports glasses.
[0049] The problem is also solved by providing a method for arranging a hinge element in a spectacle element, comprising the following steps: A hinge element according to the invention or a hinge element according to one of the previously described embodiments is inserted into a receiving recess of the spectacle element that is open towards an end face. The hinge element is inserted into the receiving recess in the axial direction until the temple part of the hinge element abuts the end face of the spectacle element with its stop. The temple part is thereby positioned in its mounting position, and the frame is positioned in an anchoring position, particularly a first one. The contact surface of the frame is subjected to a force so that the frame is forced further into the receiving recess.In this process, the anchoring position of the carrier is changed relative to the mounting position of the bracket part, in particular towards a second anchoring position. Specifically, the preload of the spring element is adjusted in this way, i.e., by applying force to the pressing surface and further pressing the carrier into the receiving recess. The preload of the spring element is particularly preferably set or readjusted to a predetermined preload value in this manner, especially by readjusting it. In connection with this method, the advantages already explained in connection with the hinge part and the spectacle element are realized. In particular, it is possible to adjust the preload of the spring element in a simple, reproducible, and precise manner, and especially to readjust it.
[0050] According to a further development of the invention, the anchoring position relative to the mounting position is changed during use of the spectacle element, particularly on spectacles incorporating the spectacle element, by applying a force to the pressing surface. In particular, the preload of the spring element is readjusted, preferably re-tensioned, in this way during use of the spectacle element. This also presses the wearer further into the receiving recess.
[0051] Preferably, the receiving recess has an axial extension greater than the axial extension required to accommodate the wearer in the original anchoring position during the manufacture of the spectacle element, that is, in particular during the initial arrangement of the hinge element within the spectacle element. This leaves space in the receiving recess into which the wearer can be inserted at a later stage of use of the spectacle element to readjust the preload of the spring element, in particular to retension the spring element.
[0052] It is therefore advantageous to be able to adjust the preload of the spring element even after initial use, in particular to retension the spring element if its preload has decreased during use of the spectacle element, or if a greater preload is desired for other reasons. In particular, a stronger preload of the spring element allows for a more precise snap action of the spring hinge and increases the resistance that a spectacle temple offers against overextension beyond its normal wearing position.
[0053] The problem is ultimately solved by creating a method for manufacturing a hinge component, comprising the following steps: A bracket is machined from a sheet of metal, in particular by stamping, laser cutting, wire cutting, or wire EDM. A support is machined from a sheet of metal, in particular by stamping, laser cutting, wire cutting, or wire EDM. The bracket and a spring element are arranged on the support. The support is bent into a final form in which it encompasses the bracket and the spring element. The bracket is then bent into a final form. Using this method, a hinge component of a spring hinge can be manufactured particularly easily and cost-effectively.
[0054] The steps of the process for manufacturing the hinge part listed here do not have to be carried out in the specified order, but they can certainly be carried out in the specified order. However, different sequences of the process steps are possible, especially those deviating from the previously described sequence. In particular, the following further embodiments of the process are possible:
[0055] In a first preferred further embodiment, the ironing part is first bent into the ironing part end shape; then the ironing part in its ironing part end shape is arranged with the spring element on the carrier; then the carrier is bent into its carrier end shape, in which it then encompasses the ironing part and the spring element.
[0056] According to a second preferred embodiment of the method, the stirrup part is arranged on the carrier with the spring element before bending; then the stirrup part is first bent into its stirrup part final shape while it is already arranged on the carrier; only then is the carrier finally bent into its carrier final shape, in which it encompasses the stirrup part and the spring element.
[0057] Furthermore, it is of course not crucial whether the bracket or the support is machined from a sheet of metal first. Rather, it is also possible for the bracket and the support to be machined simultaneously from a sheet of metal, in particular even from the same sheet.
[0058] It has also become clear that the ironing part can be placed on the carrier in its final ironing part form or in an as yet unbent form.
[0059] It is also possible that the carrier is first bent into its final carrier shape, followed by the placement of the stirrup part and the spring element in the carrier, after which the stirrup part is bent or fully bent into its final stirrup part shape.
[0060] Naturally, further variations in the sequence of the process steps are possible. Additional sub-steps or process steps can also be added without deviating from the preferred method according to the invention.
[0061] The invention will be explained in more detail below with reference to the drawing. The drawing shows:
[0062] Figure 1 shows an embodiment of a spectacle element in combination with an embodiment of a hinge part; Figure 2 shows the hinge part according to Figure 1;
[0063] Figure 3 shows a representation of a support for the hinge part according to Figure 2 in a support end form;
[0064] Figure 4 shows a representation of a bracket part of the hinge part according to Figure 2 in a bracket part end form;
[0065] Figure 5 shows a representation of the beam according to Figure 3 before bending into the beam's final shape, and
[0066] Figure 6 shows a representation of the ironing part according to Figure 4 before bending into the ironing part final shape.
[0067] Fig. 1 shows an embodiment of a spectacle element 1, which has a receiving recess 5 open towards an end face 3. An embodiment of a hinge part 7 is arranged in the receiving recess 5, the hinge part having a support 9 which is anchored in the receiving recess 5 by anchoring elements 11, of which, for clarity, only one is designated with a reference numeral. A temple part 13 of the hinge part 7 rests against the end face 3 with a stop 15. The support 9 has a pressing surface 17 which is accessible via the end face 3, in particular via an opening on the front side of the receiving recess 5.
[0068] The spectacle element 1 is preferably designed here as a spectacle temple.
[0069] Fig. 2 shows an embodiment of the hinge part 7 according to Fig. 1. The hinge part 7 is, in particular, part of a spring hinge (not shown) of a pair of glasses (also not shown). In particular, it can be pivotally connected to another hinge part to form the spring hinge.
[0070] In particular, a) shows a perspective view of the hinge part 7, while b) shows a longitudinal section view.
[0071] The support 9 has a first support surface 19. A spring element 21 is received by the support 9, and in particular, the spring element 21 is arranged within the support 9. The spring element 21 bears against the first support surface 19 with a first effective end 23. The stirrup part 13 is arranged within the support 9 so as to be displaceable relative to the support 9 and has a second support surface 25 against which the spring element 21 bears with a second effective end 27. In particular, the spring element 21 is tensioned, and in particular compressed, between the first support surface 19 and the second support surface 25 when the stirrup part 13 is displaced within the support 9 in the direction of an approach of the two support surfaces 19 and 25.
[0072] The spring element 21 is designed in particular as a coil spring.
[0073] Figure 2 also shows the pressure surface 17, which is freed from the temple part 13 and is therefore accessible, in particular, when the hinge part 7 is mounted on the spectacle element 1.
[0074] By applying a force to the pressure surface 17, the anchoring position of the carrier 9 in the receiving recess 5 can be changed relative to the mounting position of the temple part 13 defined by the stop 15 on the front face 3. In particular, the carrier 9 can be forced further into the receiving recess 5, while the temple part 13 is held in its position relative to the spectacle element 1 by the stop 15, which abuts the front face 3. This causes a relative displacement between the first support surface 19 and the second support surface 25 such that these support surfaces 19 and 25 are brought closer together, thereby allowing the preload of the spring element 21 to be adjusted. In particular, the preload of the spring element 21 can be increased to a predetermined value. It is especially preferred that it can also be adjusted, in particular readjusted, during use of the spectacle element 1.This is particularly advantageous if the preload force has decreased due to wear during the use of the spectacle element 1.
[0075] The anchoring elements 11 are arranged as a sawtooth profile, especially laterally, on the support 9.
[0076] Fig. 3 shows a representation of the support 9 of the hinge part 7. Identical and functionally equivalent elements are provided with the same reference numerals in all figures, so that reference is made to the preceding description in each case.
[0077] The support 9 is manufactured as a sheet metal bent part, in particular from a thin sheet. In particular, a first end 29 is bent onto a second end 31 of the support 9, thereby forming a receiving space 33 enclosed by the support 9, in which, in the assembled state of the hinge part 7, the bracket part 13 - at least partially - and the spring element 21 are received, in particular arranged.
[0078] The second end 31 is preferably beveled on both sides to allow easy insertion of the carrier 9 into the receiving recess 5 of the spectacle element 1.
[0079] The support 9 is shown in Figure 3 in a support end form.
[0080] Fig. 4 shows a representation of the bracket part 13 of the hinge part 7.
[0081] The ironing part 13 is designed as a sheet metal bent part, in particular from a thin sheet metal.
[0082] It has, in particular, two legs 35 which, when the hinge part 7 is assembled, engage the spring element 21. Specifically, the bracket part 13 is U-shaped, with the two legs 35 being the legs of the U. A locking eye 37 is arranged on each leg 35.
[0083] The stop 15 is preferably formed by stop surfaces 39, wherein a stop surface 39 is formed or arranged on each of the hinge eyes 37.
[0084] In particular, both the support 9 and the stirrup part 13 are designed as sheet metal bending parts and - as can be seen in particular in Figure 2 - are arranged in an intertwined configuration.
[0085] The ironing part 13 is shown in Figure 4 in an ironing part end form.
[0086] Fig. 5 shows the support 9 after it has been machined from a sheet, in particular by stamping, laser cutting, wire cutting or wire EDM, and before it is bent into its final support shape. It can be seen that the anchoring elements 11, in particular as a sawtooth profile, can advantageously be formed during the machining process.
[0087] Fig. 6 shows the hinge part 13 after machining, in particular by punching, laser cutting, wire cutting, or wire EDM, from a sheet metal part and before bending into the final hinge part shape. Advantageously, the hinge eyes 37, including the stop surfaces 39, are also formed during machining. A method for manufacturing the hinge part 7 preferably provides that the hinge part 13 is machined from a sheet metal part, in particular by punching, laser cutting, wire cutting, or wire EDM. The support 9 is also machined from a sheet metal part, in particular by punching, laser cutting, wire cutting, or wire EDM. The hinge part 13 and the spring element 21 are arranged on the support 9. The support 9 is bent into the final support shape, in which it encompasses the hinge part 13 and the spring element 21. The hinge part 13 is bent into its final hinge part shape.The aforementioned procedural steps can certainly be carried out in a different order.
[0088] In particular, it is possible that the ironing part 13 is already arranged on the carrier 9 in the ironing part final form.
[0089] Alternatively, it is also possible that the ironing part 13 is bent into its ironing part final shape only after it has been arranged on the carrier 9 but before the carrier 9 has been bent into its carrier final shape.
[0090] It is also possible that the support 9 is first bent into its final support shape, whereby the bracket part 13, in a form that is not yet bent or not yet fully bent into its final bracket part shape, is arranged together with the spring element 21 in the receiving space 33. Only then is the bracket part 13 bent or fully bent into its final bracket part shape.
[0091] In a method for arranging the hinge part 7 in the spectacle element 1, the hinge part 7 is preferably inserted, and in particular pressed, into the receiving recess 5 until the temple part 13 abuts the end face 3 with the stop 15. The temple part 13 is thereby positioned in the assembly position, and the carrier 9 is positioned in a first anchoring position. Subsequently, the pressure surface 17 is subjected to a force such that the carrier 9 is forced further into the receiving recess 5. The anchoring position is thereby changed relative to the assembly position, in particular towards a second anchoring position. Advantageously, the preload of the spring element 21 is adjusted in this process.
[0092] Preferably, the anchoring position relative to the mounting position during use of the spectacle element 1, particularly on spectacles, is changed by applying a force to the pressing surface 17. In particular, the preload of the spring element 21 is readjusted or recalibrated in this way. Specifically, the wearer 9 is thereby pressed further into the receiving recess 5 on the spectacle element 1 while the mounting position of the temple part 13 is held.
[0093] The anchoring elements 11 each prevent the support 9 from shifting back towards the front face 3.
Claims
REQUIREMENTS 1. Hinge part (7) for a spring hinge of eyeglasses, comprising a carrier (9) having a first support surface (19), wherein a spring element (21) is received by the carrier (9) and bears against the first support surface (19) with a first effective end (23), wherein the carrier (9) has anchoring elements (11) for anchoring the carrier (9) in an eyeglass element (1) in an anchoring position, and comprising a temple part (13) which is displaceably arranged in the carrier (9) relative to the carrier (9) and has a second support surface (25) against which the spring element (21) bears with a second effective end (27), wherein the temple part (13) has a stop (15) which is configured to abut the eyeglass element (1) in a mounting position of the temple part (13), and wherein the carrier (9) has a pressure surface freed from the temple part (13). (17) exhibits which is arranged in such a way,that the anchoring position relative to the mounting position can be changed by applying a force to the pressure surface (17).
2. Hinge part (7) according to claim 1, characterized in that the support (9) is designed as a sheet metal bent part.
3. Hinge part (7) according to one of the preceding claims, characterized in that the stirrup part (13) is designed as a sheet metal bent part.
4. Hinge part (7) according to one of the preceding claims, characterized in that the bracket part (13) encompasses the spring element (21) with two legs (35), wherein a hinge eye (37) is arranged on each leg (35) of the two legs (35).
5. Hinge part (7) according to one of the preceding claims, characterized in that the support (9) and the stirrup part (13) are designed as sheet metal bending parts and are arranged in an interlocking configuration.
6. Hinge part (7) according to one of the preceding claims, characterized in that the anchoring elements (11) are arranged, in particular designed, as a sawtooth profile on the carrier (9).
7. Spectacle element (1), with a receiving recess (5) open towards an end face (3), wherein - a hinge part (7) according to one of claims 1 to 6 is arranged in the receiving recess (5), wherein - the support (9) of the hinge part (7) is anchored with the anchoring elements (11) in the receiving recess (5), wherein - the ironing part (13) rests against the stop (15) on the front face (3), and wherein - the crowding area (17) is accessible via the front face (3).
8. Method for arranging a hinge part (7) in a spectacle element (1), comprising the following steps: - Inserting a hinge part (7) according to one of claims 1 to 6 into a receiving recess (5) of the spectacle element (1) open towards an end face (3), wherein - the hinge part (7) is inserted into the receiving recess (5) until the bracket part (13) of the hinge part (7) abuts the end face (3) with its stop (15), and the bracket part (13) is positioned in its mounting position and the support (9) is positioned in an anchoring position; - Applying a force to the pressure surface (17) of the carrier (9) so that the carrier (9) is forced further into the receiving recess (5), whereby - the anchoring position of the support (9) is changed relative to the mounting position of the bracket part (13).
9. Method according to claim 8, characterized in that the anchoring position relative to the mounting position in use of the spectacle element (1) is changed by applying a force to the pressure surface (17).
10. Method for manufacturing a hinge part (7), in particular a hinge part (7) according to any one of claims 1 to 6, comprising the following steps: - Working out a bracket part (13) from a sheet of metal; - Working out a support (9) from a sheet of metal; - Arranging the ironing part (13) and a spring element (21) on the carrier (9); - Bending the support (9) into a support end shape in which the support (9) encompasses the bracket part (13) and the spring element (21), and Bending the ironing part (13) into an ironing part end shape.