DE3905041A1 - Fastening arrangement - Google Patents

Abstract

For a fastening arrangement for fastening accessories to at least one eye attachment it is proposed to provide eye attachment and accessory parts with permanent magnets or additionally with magnetic return path parts for the magnetic flux and to utilise the adhesive force, in the magnetic circuits thus formed, for fastening.

Description

The present invention relates to a mounting arrangement tion according to the preamble of claim 1.

Eye attachments serve essentially to protect the eyes - partly also the eye area and face -, the correction of ametropia of the eyes and the production of aesthetic effects.

Often, a user desires that one eye attachment have multiple Functions of this kind are fulfilled.

A particularly important example is the case of an eye attachment in the form of correction glasses that - at least at least temporarily - additionally the function of a glare protection glasses should take over.

There are some known solutions for this.

For example, so-called tinted glasses are used as corrections tion lenses related to the manufacturing process have a certain light attenuation. This can, however naturally with the appropriate lighting conditions Eyeglass user severely impaired will. Accordingly, the correction glasses in the generally provided only with low light attenuation, whereby  then the anti-glare effect is also only slight is.

The use of phototropic glasses is also known Light attenuation becomes apparent with increasing intensity of the the or passing light reversibly increased. The maximum light attenuation achieved with these glasses however, in many situations of the user of the glasses do not do justice to optimal glare protection. Be the long ones for user practice are particularly disruptive Relaxation times of the change in light attenuation are added.

In addition, solutions are known in which anti-glare glasses are brought into the optical beam path as accessories, in particular by attaching anti-glare glasses detachably to correction glasses as accessories. In one of these solutions, the anti-glare glasses can be folded in and out in the optical beam path in the fixed state. A particularly disadvantage of these solutions is the purely mechanical way of attaching the accessories - in this case the anti-glare glasses or goggles - to the eye attachment in the form of the correction glasses, which - especially when using clamping and spring mechanisms - in the assembled state a disruptively bulky structure means that it sticks to clothing and, moreover, feels particularly uncomfortable, largely destroys the original aesthetic effect of the glasses.

Further examples of desirable multiple functions of Eyewear supplies so-called ski goggles and so-called Diving goggles.

These eye attachments mainly serve the eyes or eyes privacy protection. The demand for something stronger at the same time Glare protection or simultaneous correction of an eye defect Visibility can be seen with the - sometimes somewhat tinted - skis glasses by wearing appropriate glasses under the large-sized ski goggles are fulfilled what however, considerable disability and inconvenience for the user, both in the eye and in the ear area, brings with it. The problem at the same time ametropia too correct and ensure strong glare protection remains thereby unsolved.

Likewise, the desire for glare protection and - remains here naturally in the foreground - after correction one Open-sightedness in diving goggles is open, because here one anti-glare or cor Rection glasses especially in the area of the temple Water resistance problems. In addition there would of course also be a significant disability here Inconvenience to the user.

The ratio is similar to that of ski and diving goggles nisse with eye attachments from the occupational safety area, at for example with glasses for eye or face protection mechanical processing, e.g. of grinding, or during the welding of workpieces. Especially with  such operations is about the protective function of Glasses out, clear vision, especially here in the near area, vital to safety and security Quality of work. To do this, you must wear protective goggles In addition, corrective glasses are worn, which leads to significant disability and inconvenience Work leads. In addition, on the edge of Safety glasses leakages occur through which e.g. flying abrasive grains and sparks in the eyes reach the area and can endanger the eyes.

The object of the present invention is a fastener arrangement for attaching accessories to eye attachments to create that makes it easy, quick and easy reliable way and as far as possible avoiding Disabilities, threats and inconveniences for the User, optically effective parts of the accessories in the beam the eyes go in and out of it bring so that at least temporarily the eye attachment in Connection with accessories for the user's eyes at the same time can perform several functions. The original est aesthetic effect of the eye attachment as far as possible remain intact.

This problem is solved by the characteristic Features of claim 1. The sub-claims have advantage content of the invention.

In the context of the present invention, investigations and trials were found that - in the sense of the task - the adhesive force can be used particularly advantageously within magnetic systems for attaching accessories to eye attachments.

A magnet system can consist of two against each other opposite permanent magnets exist, between who have an attraction (adhesive force).

But it can also consist of a permanent magnet and a inferior part to be brought from in Comparison to the material of the permanent magnet as a soft magnet material to be viewed, e.g. Iron, which is Inference part at least a part of the permanent magnet ten outgoing river so that between permanent magnet and yoke part an attraction (adhesive force) occurs.

The adhesive force can be increased considerably if at least a permanent magnet like a so-called pot magnets partially from a yoke, e.g. made of iron, for at least part of the magnetic flux of the perma is surrounded and therefore also part of the Magnet system is.

Each of the magnet systems listed above forms together with the non-magnetic intermediate contained therein space, e.g. an air gap, a magnetic circuit.

According to the idea of the invention, the adhesive force in within a magnet system for quick detachable, quick  Attaching accessories to an eye attachment used by each integrate an accessory and an eye attachment each with a component of a magnet system is firmly connected, for example with an eye attachment a permanent magnet and an accessory with a wide one ren, opposite pole permanent magnet or a conclusion part. By placing the stock as close as possible parts of the magnet system become an accessory detachable / detachable bar attached to an eye attachment and its optical effective area easily and quickly in the eye ray path brought, when detaching / detaching it quickly and easily removed again.

In this way, the individual accessories are ever successful because strongly on the physically or optically relevant Reduce components and thereby solutions in the sense of To realize the task.

The invention is based on the schematic drawing Solutions described in more detail using exemplary embodiments. Show it

Fig. 1 is a Korrektionsbrille with attached light stabilizer,

Fig. 2 to Fig. 5 magnet systems of the fixing arrangement,

Fig. 6 is a Korrektionsbrille with attached corrective tion tower,

Fig. 7 is a Korrektionsbrille with attached corrective TION or, corrective and light articles,

Fig. 8 is an auxiliary device for mounting glasses and / or accessories,

Fig. 9 is a Korrektionsbrille with attached guard member

Fig. 10 is a goggle with attached light stabilizer,

Fig. 11 a pair of diving goggles with attached correction.

In Fig. 1 is schematically as an embodiment of an eye attachment with attached accessory, a pair of correction glasses 2 with frames for clarification bold frames 4 and 6 , jaws 8 and 10 , temple shafts 12 and 14 , bridge 16 , glasses lenses 18 and 20 and one at Correction glasses attached light protection 22 , transparent and with light attenuation shown at least approximately in the area of the beam path of the eyes. The upper part of Fig. 1 shows a plan view from the front, the lower part a section AA . The light protection 22 serves to protect the eyes, in particular, against glare and / or irritation, the protection also being able to relate to invisible regions of the light, in particular, for example, the ultraviolet region.

The light protection 22 of the embodiment shown in FIG. 1 is bulky frame and other fastening parts avoiding and inexpensive to manufacture, designed as a coherent part. In order to largely maintain the aesthetic effect of the design of the eyeglass frame, even in the case of the light shield 22 attached to it, the light shield 22 in the region of the spectacle lenses - apart from the region of the bridge 16 - is smaller than or approximately the same size in the front view how the frame edges 4 , 6 held.

The areas 24 , 26 of the light shield 22 are preferably slightly up and down beyond the bridge 16 and serve as a means for gripping aid when attaching or detaching the light shield 22nd

The attachment itself is carried out with the help of two permanent magnets 34 and 36 each practically more uniform, zueinan the opposite polarity (illustrated by schematic identification with N and S ), which are held together by the adhesive force between them, with the permanent magnet 34 firmly in the Bridge 16 is located and the permanent magnet 36 fixed in an intermediate part 28 which carries the optically active areas 30 and 32 of the Lichtschut zes 22 . The areas 30 , 32 and the intermediate part 28 are particularly advantageously produced by injection molding as a plastic part, the permanent magnet 36 being able to be at least partially encapsulated. For example, the regions 30 , 32 can also be produced in a coherent manner and the permanent magnet 36 can be attached directly to the light shield 22 , for example by gluing. Further, the permanent magnet can 36, as well as the permanent magnet 34, - for example to meet to a possible risk of breaking under mechanical stress of the light protection 22 or the Korrektionsbrille 2 - consist of a plurality of individual magnets.

The bridge 16 and the intermediate part 28 with their permanent magnets 34 and 36 also serve as supports for an accessory in the form of the light shield 22 , with bevels 42 and 44 as special means, which of course can also run or be designed differently, a self-adjusting fastening enable and ensure a tight fit.

The attachment of the permanent magnet 34 in the bridge 16 according to the exemplary embodiment of FIG. 1 does not constitute a restriction. Rather, the permanent magnet 34 and / or at least one other corresponding permanent magnet can also be attached at another location of the correction glasses 2 , for example above the one in FIG . 1 for the Perma mag- nets position shown 34 - for example in a Ver broadening of the bridge 16, or an additional, strebenar term connection between the socket edges 4 and 6 in the area of the bridge 16 and / or, for example in the socket edges, for example in the region of the jaws 8 and 10 or, for example, in the jaws 8 , 10 itself. The permanent magnet 36 and / or at least one other corresponding permanent magnet of the light protection 22 is then, at least one permanent magnet of the correction glasses 2 opposite, at the appropriate location of the light protection 22 (not shown) . The same applies to the inference parts 50 and 51 listed below.

Since the permanent magnets 34 and 36 each have a large demagnetization factor due to their shape, it is particularly advantageous to achieve high magnetization values in the permanent magnets and - associated with this - high values of the magnetic charges or pole strengths generating the adhesive force at their interfaces acting as poles, to use as permanent magnets 34 , 36, for example permanent magnets, which were each provided in their manufacture with a preferred axis 38 , 40 for magnetization - for example by magnetic field and / or heat treatment - which are magnetically anisotropic, ie a magnetic one Have anisotropy. The preferred axes 38 , 40 of the permanent magnets 34 , 36 are preferably approximately parallel to one another, for example as shown in FIG. 1 in section AA or, for example, as shown in the partial representation of the permanent magnets 34 , 36 to the right of them .

Magnetic materials which contain at least one rare earth or at least one rare earth and boron, such as alloys containing at least cobalt and samarium and alloys containing at least neodymium, iron and boron, are particularly suitable as materials for the permanent magnets 34 , 36 .

Such alloys have, in particular, a favorable demagnetization curve with high values of the coercive force and the magnetic energy density, so that high holding forces can be achieved even with low-volume permanent magnets 34 , 36 . The low volume of the magnets 34, 36 when executed by using said magnetic materials greatly facilitates their placement in the bridge 16 and the intermediate part 28 and allows in a very advantageous manner particularly small volume bridges 16 and intermediate parts 28th

The adhesive force as a decisive physical variable of the fastening arrangement can be increased or the volume of the permanent magnets - in particular inexpensively - reduced if the permanent magnet 34 and the permanent magnet 36, approximately in the manner of a so-called pot magnet, each have a conclusion 46 or 48, at least partially On the acquisition of the magnetic flux which penetrates in each case and emerges from it, as illustrated schematically in FIG. 2a, by using more favorable operating points on the demagnetization curve of the permanent magnets.

Fig. 2b and Fig. 2c schematically show sections through two exemplary embodiments of the permanent magnet 34 with its inference 46 in the bridge 16 , which also applies in an appropriate transmission as an embodiment for the permanent magnet 36 with its inference 48 of the intermediate part 28 .

In many cases, especially if a magnetic material with a particularly high coercive field strength and energy density is used for the permanent magnets, it is sufficient if the yoke 46 only partially wraps around the permanent magnet 34 and the yoke 48 around the permanent magnet 36 , for example U-shaped, as can be seen from the diagram in FIG. 2b, which also enables a particularly narrow bridge 16 . A particularly high adhesive force is achieved if the yoke 46 laterally wraps around the permanent magnet 34 and the yoke 48 laterally around the permanent magnet 36 , for example as shown in the diagram in FIG. 2c.

In many cases, especially when the accessory in the case of Fig. 1 and Fig. 2 includes the light shield 22, a ver proportionate light weight, it is sufficient if only a permanent magnet 34 or 36 is provided with a back yoke 46 and 48 is . In these cases, it is often sufficient if a fastening arrangement has only one permanent magnet, that is to say in the case of the exemplary embodiment corresponding to FIG. 1 or FIG. 2, the bridge 16 the permanent magnet 34 or the intermediate part 28 the permanent magnet 36 and in place of one of these Permanent magnet, a yoke part for at least partially receiving the permanent magnets in each case passing through, emerging from this magnetic flux, occurs, as shown schematically in FIG. 3 for the bridge 16 with a yoke part 50 , in connection with the intermediate part 28 with the Permanent magnet 36 with its inference 48 is shown.

Especially for particularly light accessories, for example a particularly light protection 22 , a modified, simple fastening arrangement according to the embodiment example of FIG. 4 is sufficient . Compared to the arrangement according to FIG. 3, a permanent magnet is used instead of the permanent magnet 36 with its inference 48 52 , which has segments of different polarity, as is to be illustrated by the schematic identification with N and S in FIG. 4 as an exemplary embodiment with a double-pole magnet 52 , this exemplary embodiment not implying any restriction with regard to the possible polarity distributions.

Of course, there can also be a permanent magnet 54 with sectors of alternating polarity in the bridge 16 , while a permanent magnet 53 is in the intermediate part 28 ( FIG. 5) or a return part 51 corresponding to the return part 50 is located in the intermediate part 28 (not shown).

Due to the different possible embodiments of the Magnet systems within the mounting arrangement for accessories Listening to eye attachments can be very beneficial for the each case of an accessory or eye attachment one Realize optimal solution, especially if also the possibilities regarding the choice of magnetic Materials are included.

Preferably, when the accessory, such as the light protection 22 , has a relatively low weight and the permanent magnet 34 with the yoke 46 and / or the permanent magnet 36 with the yoke 48 can, especially cost-effective, for the permanent magnets 34 and 36 also magnetic materials with lower values of the coercive field strength and energy density than those already mentioned are used, for example magnetic materials that contain cobalt, especially in alloys that also contain at least aluminum and nickel as a constituent, as well as magnetic materials that Belong to the group of oxide-ceramic magnetic materials, such as barium and strontium ferrite. The latter are also particularly advantageous for permanent magnets with sectors of different polarity.

In particular, because of their good machinability, in some cases in which, for example, a special formal adaptation of the permanent magnets is indicated, the use of rubber and / or plastic-bonded grains of magnetic materials, for example in particular the aforementioned magnetic materials, which is also inexpensive are particularly advantageous. Above all, particularly advantageous in terms of manufacturing technology, larger areas can also be made in such materials, for example larger areas of the intermediate part 28 or the entire intermediate part 28, for example made of plastic-bound barium and / or strontium ferrite grains or plastic-bound grains of an alloy containing cobalt and samarium or plastic-bonded grains of an alloy containing neodymium, iron and boron.

Mainly because of their relatively good workability in addition also cobalt alloys with at least iron and vanadium addition, with at least iron and chromium addition,  with iron, nickel, titanium and / or niobium additive, with platinum, of application-specific advantage. In particular the cobalt Platinum alloys increase adhesive strength or volume reducing high values of the coercive field strength and the Energy density, whereby this material is machined kindly characterized by particularly low brittleness and extremely corrosion-resistant compared to practical all corrosive media. Cobalt alloys with iron Nickel additives are also particularly suitable for melting in glasses, e.g. as permanent magnets in eyeglass lenses that for example individually with these permanent magnets on one Eye attachment can be attached.

The yoke 46 or 48 and the yoke part 50 or 51 are preferably made of iron, which does not have to be pure iron, in particular with regard to corrosion protection and in an economically advantageous manner, the iron can therefore contain additives. In particular for reasons of corrosion protection, the iron is preferably additionally provided with one or more protective layers and / or largely extrusion-coated with plastic material.

The choice of material for the yoke 46 or 48 and the yoke part 50 or 51 is not limited to iron, but rather numerous materials corresponding to high magnetic permeability come into question, for example alloys containing iron and nickel, ie alloys which also are very geous in terms of corrosion resistance.

In addition, soft magnetic ferrites such as manganese-zinc ferrites, for example, are also suitable as material for the yoke 46 or 48 and the yoke part 50 or 51 , which offer a number of advantages. They can already be brought into the desired shape during their manufacture (for example, when pressing the powdered starting material) - for example, a conclusion in accordance with FIG. 2c - are therefore inexpensive and of low cost in terms of material and are very corrosion-resistant as an oxide ceramic material. Added to this is their low density, ie their low weight.

The information given on the design of the magnet system, especially with regard to materials the fastening arrangement, in particular for permanent magnets, Inference parts and inferences, in connection with a individual embodiments, of course, do not mean that these are not also used in other exemplary embodiments could become.

In Fig. 6, as in Fig. 1, again, the correction glasses 2 with frame edges 4 and 6 , the jaws 8 and 10 and the spectacle lenses 18 and 20 are shown schematically as a front view. Instead of the light protection 22 , in the case of the exemplary embodiment according to FIG. 6, however, a correction attachment 56 with the lenses 58 and 60 is now attached to the correction glasses 2 as an accessory, for which purpose the correction attachment preferably has an intermediate part 62 corresponding to the intermediate part 28 with, for example, the permanent magnet 36 corresponding to FIG. 1 permanent magnet (not shown) and the bridge still is not a limitation for example, the permanent magnet 34 according to Fig. 1. herein, but are all related to the mounting arrangement for the sunscreen embodiments previously described requires 22 for the Fixed to supply arrangement, in particular also with regard to their magnet system, can also be used for the fastening arrangement of the correction attachment 56 and other accessories. As a result, for example, one or more corrective glasses 2 , light protection 22 , corrective attachment 56 and other accessories can be used to advantageously form a modular spectacle system by means of compatibility.

The lenses 58 and 60 are preferably made of spray-technical and / or heat-processable plastic glass, but can also - especially if they should have a particularly high refractive power or short focal length, made of other glass, in particular silicate glass, in which Case of the correction attachment 56 (not shown te) frame parts for the lenses 58 , 60 .

In the case of plastic glass, the correction attachment 56 , in accordance with the light protection 22 , including the intermediate part 62 , is produced particularly advantageously by injection molding as a plastic part, it being possible, for example, for the permanent magnet of the intermediate part 62 to be at least partially overmolded. In order to increase the mechanical stability, the correction attachment 56 preferably has at least partially reinforced edge regions 65 and / or 67 , which are shown thickened in FIG. 6.

Corresponding to the areas 24 and 26 of the light protection 22 , the correction attachment 56 preferably has areas 64 and 66 projecting upwards and downwards slightly beyond the bridge 16 (not shown in FIG. 6), which in turn serve as a means for gripping assistance when attaching or detaching . now more of the correction essay 56 - serve.

In special cases, for example, if the correction attachment is to have light protection at the same time, in particular to protect the eyes against glare and / or irritation, and is provided with increased light attenuation, which can also affect the invisible area of the light it is preferably designed as a correction attachment 68 with the lens regions 70 and 72 and the intermediate part 69 (diagram FIG. 7), which can be obtained particularly cheaply, for example by injection molding, in the production of the correction attachment 68 and / or by hot stamping.

A rapidly at a eyes intent - 7 prescription glasses 2, for example in the case of Figures 6 and - attachable acce is earpiece in the form of a Korrektionsaufsatzes 56 and 68 for the large number Fehlsichtiger of particular practi shear importance for sharp vision at.. Distance and proximity require so-called multifocal lenses (multifocal lenses), for example two-lens (bifocal lenses) with two areas of different refractive power or focal length: an upper area, referred to as the distant part, and a lower area, referred to as the near part. The near part is generally smaller than the distant part and has a stronger refractive power or shorter focal length than the distant part, so that the near part enables sharp vision in the close range and the distant part enables sharp vision in the far range.

This division of the glasses - whereby three areas of different focal lengths or areas of sliding focal lengths may be necessary for seamlessly sharp vision in the entire object space - is suitable for a large number of situations in the daily life of those wearing glasses: Viewing into the distance usually requires a straight ahead view and thus through the - upper - distant part of the gaze, while seeing nearby in general with downwards, for example on the table top or hand area, through the near part directed through gaze.

However, there are also situations in which the objects to be detected with a downward gaze are not optically in the vicinity, e.g. a curb in front of the glasses wearer, steps, stairs or another obstacle to be expected in the crotch area. These objects - with appropriate refractive power of the near part of the lens - are only perceived as blurred, which can lead to a considerable risk to the wearer of the glasses.

The spectacle wearer generally tries this effect to decrease by extreme inclination of the head, which in particular which hardly succeeds for objects in the foot area, the attentive of something else, possibly also dangerous Distracts objects and is also perceived as unpleasant. In addition, some types of multifocal glasses at the visual transition between the near and far section for  the spectacle wearer creates an image jump that is extraordinary is irritating and therefore an additional danger dung, especially on stairs.

Here, the correction attachment 56 or 68 is of great part, for example if the correction glasses 2 are equipped with glasses (lenses) 18 , 20 for distant vision, i.e. with a correspondingly low refractive power or long focal length, and the correction attachment 56 or 68 with Glasses (lenses) 58 , 60 or 70 , 72 of additional refractive power, which, after attaching the correction attachment to the correction glasses 2 in the manner of attachment lenses, shorten the focal length in the lower areas of the glasses (lenses) 18 , 20 and thus these areas in the near range the correction glasses 2 transform.

In this case, the correction attachment 56 or 68 replaces a pair of glasses, but practically extraordinarily before partially without a bracket and with an extremely small volume. The above-mentioned, sometimes dangerous situations of the spectacle wearer are avoided by the fact that the correction attachment 56 or 68 is preferably only attached to the correction glasses 2 when it is needed, for example for reading or for working by hand, this procedure being carried out by rapid interchangeability by means of the described, inventive fastening arrangement and the small volume and light Ausfüh tion of the correction approach 56 and 68 made possible by this at the same time.

Fig. 8 shows schematically a further accessory, which additionally facilitates the procedure described above. This accessory has, as auxiliary device 74 , as schematically indicated in the top view in the left part of FIG. 8, an area 76 which magnetically and visually corresponds to the dimensions of the bridge 16 , so that - compatible with the correction glasses 2 - the correction attachment 56 or 68 can be attached to the auxiliary device 74 . The auxiliary device 74 has means 75 for attachment to items of clothing, for example a pin in FIG. 8. If the auxiliary device 74 worn dung subject on a clay, the Korrektionsteil can be secured thereto quickly and easily when it is not in use and removed again quickly and easily, to attach it to the prescription glasses 2 when it is needed. Of course, the correction glasses 2 themselves, but also other accessories, such as the light protection 22 , can be detachably attached to the auxiliary device 74 .

Also practically particularly meaningful are Ausführungsbei games in which the means 75 for attachment to clothing items are replaced by means for attachment to solid objects, for example a dashboard, for example by an adhesive layer (not shown).

Another accessory for the correction glasses 2 , which can be quickly attached to the correction glasses 2 with the fastening arrangement according to the invention and which is particularly important for the occupational safety area, shows the exemplary embodiment of the schematic representation of FIG. 9, corresponding to the sectional view of Fig. 1, wherein now protection to the position of the light 22 and the Korrektionsaufsatzes 56 and 68 is a completely or partially clear-sighted protecting member 78 with an intermediate part 79 with a permanent magnet 77, for example, for protection against the grinding chips or sparks entered. Of course, the protective part 78 can also have increased light attenuation and thus at the same time act as light protection, in particular, for example, when welding, but also as light protection, for example in the sports field, the light protection serving in particular to protect the eyes against glare and / or irritation and the Protection can also be the invisible area of light, in particular, for example, the ultraviolet area.

While the exemplary embodiments described above for the inclusion of eye attachments and accessories in the fastening arrangement according to the invention were based on correction glasses as eye attachments, FIG. 10 shows schematically an embodiment in which the eye attachments are provided by eye or face protection in the form of so-called ski goggles 80 is assumed. Fig. 10 above schematically shows a plan view from the front, Fig. 10 below a section BB , with parts behind the - see-through - view window 84 are also shown.

In Fig. 10, a light shield 82 is schematically shown as an embodiment of an accessory, which is, for example, as a coherent, light-damping plastic part Herge provides. The light shield 82 serves in particular to protect the eyes against glare and / or irritation, the protection also being able to relate to the invisible region of the light, in particular, for example, the ultraviolet region. The light protection 82 is preferably attached to the inside of the single or multi-walled viewing window 84 , which is located in a frame 85 . For this purpose, permanent magnets 88 and 92 or parts 87 , 89 , in which they are at least partially located, are attached to the viewing window 84 , for example by means of adhesive layers 86 or 90 . The sunscreen 82, the intermediate portions 94 and 96, with which it can be advantageously manufactured in an injection operation that wherein the mag- nets to the Perma 88 and 92 respectively oppositely poled permanent magnets 98 and 100 located in the intermediate portions 94 and 96th

The similarity of the two magnet systems with the permanent magnets 88 and 98 or 92 and 100 of the exemplary embodiment according to FIG. 10 obviously does not imply a restriction, but rather, when using several magnet systems for fastening arrangements for accessories to eye attachments, different magnet systems, for example with and without inference part 50 and 51 , respectively.

The intermediate parts 94 , 96 and the parts 87 , 89 have preferably bevels 95 , 102 and 97 , 104 as a means for self-adjusting, secure fit securing the permanent magnets 98 and 100 or their intermediate parts 94 and 96 to the permanent magnet 88th and 92 or on the parts 87 , 89 and thus the light shield 82 on the viewing window 84 .

The regions 108 and 110 protruding as a configuration example serve as gripping aids when the light shield 82 is being fastened or removed quickly. An elastic band 106 is used for attachment to the head.

Of course, instead of the light protection 82, for example, a correction attachment (for example in the case of nearsightedness for the far range) can occur (not shown) and the combination of the two is also possible, either by tinting the correction attachment or by simultaneously attaching the light protection and correction attachment with a corresponding design of the intermediate parts (not shown).

In Fig. 11, a so-called diving goggles as top view from the front, with attached parts behind the - transparent - viewing window 128 are shown schematically as an eye attachment, and shown as a section CC . Naturally, a correction attachment 114 with lenses 116 and 118 is of particular practical interest as an accessory.

In order to keep the visual obstruction by the fastening arrangement as low as possible and to ensure a high degree of fastening security in accordance with the requirements, the fastening arrangements in the exemplary embodiment according to FIG. 11 are preferably in the lateral region of FIG. 10 as in the exemplary embodiment with ski goggles Eye attachments attached to the edge of the visual field.

For this purpose, in the exemplary embodiment of FIG. 11, permanent magnets 124 and 126 or parts 121 , 123 , in which they are at least partially, are attached to the viewing window 128 , which is located in a frame 129 , for example by means of adhesive layers 120 and 122 . The correction attachment 114 has intermediate parts 130 and 132 , with which it can advantageously be produced in an injection molding process using plastic glasses. In the intermediate parts 130 and 132 there are the permanent magnets 134 and 136, respectively, which are opposite in polarity to the permanent magnets 124 and 126 . In order to increase the mechanical stability, the correction attachment 114 preferably has at least partially reinforced edge regions 117 (highlighted in a thickened manner in FIG. 11 above).

The intermediate parts 130 , 132 and the parts 121 , 123 preferably have bevels 137 , 138 and 139 , 140 as a means for self-adjusting, secure fit securing the permanent magnets 134 and 136 or their intermediate parts 130 and 132 to the permanent magnets 124 and 126 and thus the correction attachment 114 on the viewing window 128 .

The areas 142 and 144 protruding as a configuration example serve as a means of the gripping aid for fast fastening or rapid removal of the correction attachment 114 . An elastic band 146 is used for attachment to the head, a rubber insert 147 for waterproofing.

Of course, similar to the ski goggles 80 , there are other fastening options, for example a further corrective attachment for realizing the near zone in the case of multifocal lenses (multifocal lenses) requiring ametropia (not shown).

Of course, especially for far-sighted people, a correction attachment for close-up areas - in the lower area of the field of vision - or, especially for myopic people, only a correction attachment for far-off areas - in the upper area of the field of vision - can be attached to viewing window 128 .

Instead of the ski goggles 80 or the diving goggles 112 , the same exemplary embodiments for accessories can also be used for a similarly constructed protective goggles 113 , which is illustrated by the designation 113 entered in addition to the designation 80 of the ski goggles in FIG. 10.

The previously described exemplary embodiments with the light protection 22 , 82 and with the correction attachments 56 , 68 , 114 , which each have the optically active elements for the beam paths of both eyes, mean no restriction, rather these elements, for example the lenses 58 and 60 or 70 and 72 and lenses, which can also differ greatly in shape, can also be individually attached to eye attachments - for example correction lenses behind the protective glasses of a welding goggle (not shown) - by integration with the fastening arrangement according to the invention.

Claims (31)

1. Fastening arrangement for attaching accessories to at least one eye attachment, characterized in that the at least one eye attachment ( 2 ; 80 ; 112 ) at least one permanent magnet ( 34 ; 54 ; 88 , 92 ; 124 , 126 ) and / or at least one yoke part ( 50 ) and the accessories ( 22 ; 56 ; 68 ; 74 ; 78 ; 82 ; 114 ) at least one permanent magnet ( 36 ; 52 ; 53 ; 77 ; 98 , 100 ; 134 , 136 ) and / or at least one yoke part ( 50 ; 51 ). 2. Fastening arrangement according to claim 1, characterized in that at least one of the permanent magnets according to claim 1 has a conclusion ( 46 , 48 ). 3. Fastening arrangement according to one of claims 1 and 2, characterized in that at least one of the permas Nentmagnete according to claim 1 is magnetically anisotropic. 4. Fastening arrangement according to one of claims 1 to 3, characterized in that at least one of the permas Nentmagnete according to claim 1 in whole or in part oxide ceramic material.   5. Fastening arrangement according to claim 4, characterized records that the oxide ceramic material after Claim 4 in whole or in part from barium and / or Strontium ferrite exists. 6. Fastening arrangement according to one of claims 1 to 5, characterized in that at least one of the permas Nentmagnete according to claim 1 in whole or in part Magnetic material containing cobalt exists. 7. Fastening arrangement according to claim 6, characterized is characterized in that the magnetic material according to claim 6 additionally contains at least nickel and aluminum. 8. Fastening arrangement according to claim 6, characterized is characterized in that the magnetic material according to claim 6 additionally contains at least iron and vanadium. 9. Fastening arrangement according to claim 6, characterized is characterized in that the magnetic material according to claim 6 additionally contains at least iron and chromium. 10. Fastening arrangement according to claim 6, characterized is characterized in that the magnetic material according to claim 6 additionally contains at least platinum. 11. Fastening arrangement according to claim 7, characterized is characterized in that the magnetic material according to claim 6 additionally at least nickel, aluminum, iron, titanium and / or contains niobium.   12. Fastening arrangement according to one of claims 1 to 11, characterized in that at least one of the Permanent magnets according to claim 1 in whole or in part from at least one rare earth magnet material exists. 13. Fastening arrangement according to claim 12, characterized records that the magnetic material according to claim 12 a Cobalt-samarium alloy is. 14. Fastening arrangement according to claim 12, characterized records that the magnetic material according to claim 12 boron contains. 15. Fastening arrangement according to claim 14, characterized records that the magnetic material according to claim 14 a Neodymium-iron-boron alloy. 16. Fastening arrangement according to one of claims 1 to 15, characterized in that at least one of the Permanent magnets according to claim 1 made of rubber and / or be plastic-bonded magnetic material grains stands. 17. Fastening arrangement according to one of claims 1 to 16, characterized in that at least one back circuit part ( 50 ) and / or ( 51 ) according to claim 1 consists entirely or partially of iron or an iron alloy or ferrite. 18. Fastening arrangement according to one of claims 2 to 17, characterized in that at least one back circuit ( 46 , 48 ) according to claim 2 is wholly or partly made of iron or an iron alloy or ferrite be. 19. Fastening arrangement according to one of claims 17 and 18, characterized in that the iron alloy according to Claim 17 and / or 18 additionally at least nickel contains. 20. Fastening arrangement according to one of claims 1 to 19, characterized in that there is at least one permanent magnet according to claim 1 and / or at least one yoke part according to claim 1 in the region of a bridge ( 16 ) and / or of frame edges ( 4 , 6 ) and / or of jaws ( 8 , 10 ). 21. Fastening arrangement according to one of claims 1 to 20, characterized in that at least one permanent magnet according to claim 1 and / or a back circuit part according to claim 1 in an intermediate part ( 28 ; 62 ; 69 ; 79 ; 94 , 96 ; 130 , 132 ) located. 22. Fastening arrangement according to one of claims 1 to 21, characterized in that at least one eye attachment according to claim 1 and at least one accessory according to claim 1 means ( 42 , 44 ; 95 , 97 , 102 , 104 ; 137 , 138 , 139 , 140 ) to each other for self-adjusting fastening. 23. Fastening arrangement according to one of claims 1 to 22, characterized in that at least one eye attachment according to claim 1 and at least one accessory according to claim 1 means ( 24 , 26 ; 64 , 66 ; 108 , 110 ; 142 , 144 ) for fastening to each other and separating one from the other. 24. Fastening arrangement according to one of claims 1 to 23, characterized in that at least one eye attachment according to claim 1 is a correction glasses ( 2 ). 25. Fastening arrangement according to one of claims 1 to 24, characterized in that at least one eye attachment according to claim 1 is ski goggles ( 80 ). 26. Fastening arrangement according to one of claims 1 to 25, characterized in that at least one eye attachment according to claim 1 is a diving mask ( 112 ). 27. Fastening arrangement according to one of claims 1 to 26, characterized in that at least one eye attachment according to claim 1 is safety glasses ( 113 ). 28. Fastening arrangement according to one of claims 1 to 27, characterized in that the accessory according to claim 1 comprises at least one light protection ( 22 ). 29. Fastening arrangement according to one of claims 1 to 28, characterized in that the accessory according to claim 1 comprises at least one correction attachment ( 56 ; 68 ; 114 ). 30. Fastening arrangement according to one of claims 1 to 29, characterized in that the accessory according to claim 1 comprises at least one auxiliary device ( 74 ). 31. Fastening arrangement according to one of claims 1 to 30, characterized in that the accessory according to claim 1 comprises at least one protective part ( 78 ).