Source: https://patents.google.com/patent/WO1990009611A1/en
Timestamp: 2018-09-25 04:03:11
Document Index: 362871753

Matched Legal Cases: ['art 28', 'art 28', 'arts 50', 'art 28', 'arts 28', 'art 28', 'art 28', 'art 28', 'art 50', 'art 51', 'art 28', 'art 28', 'art 28', 'art 62', 'art 62', 'art 62', 'art 69', 'art 79', 'arts 87', 'art 50', 'arts 94', 'arts 87', 'arts 130', 'arts 130']

WO1990009611A1 - Fastening arrangement - Google Patents
WO1990009611A1
WO1990009611A1 PCT/DE1990/000098 DE9000098W WO9009611A1 WO 1990009611 A1 WO1990009611 A1 WO 1990009611A1 DE 9000098 W DE9000098 W DE 9000098W WO 9009611 A1 WO9009611 A1 WO 9009611A1
PCT/DE1990/000098
Fastening arrangement for fastening accessories to ophtalmic devices, in particular spectacles, by means of permanent magnets. Permanent magnets which possess high magnetic characteristic values such as energy density and remanence are obtained by using alloys containing at least one rare earth element and/or cobalt and/or by making them magnetically anisotropic. This reduces the volume and weight of the permanent magnets, which can therefore be advantageously mounted in spectacle frames, while ensuring reliable fastening of the accessory.
The present invention relates to a Befestigungsanord¬ voltage according to the preamble of claim 1.
Eye resolutions essentially serve to protect the eyes - in some cases also the eye area and face - which Kor¬ Directorate of refractive error of the eye and the production of aesthetic effects.
Often a user wishes that a Augenvorsatzr fulfills several functions of this kind.
A particularly important example the case of a Augen¬ is intent in the form of a correction, you - zumin¬ least temporarily - in addition the function of a Blendschutz¬ glasses to take over.
There are known solutions, where in the optical Strah¬ particular by an antiglare glasses is removably attached to a Korrektionsbrille as Zubehör¬ part beam path are brought as components antiglare glasses. In one of these solutions in the fixed state the antiglare glasses can zoom in the optical path and be folded out. Particularly disadvantageous in d r. it .beta.n solutions is the purely mechanical method of attachment of components - in this case the anti-glare glasses and - glasses - the ocular attachment in the form of prescription glasses, the - mechanisms in particular by using clamping and Feder¬ - in the assembled state, a disturbing bulky structure means that catch on clothing and in addition, perceived as particularly unpleasant, the original aesthetic effect of the glasses makes largely destroyed.
In contrast, it has been proposed components - insbeson particular element as glare protection or as an additive lenses with positive refractive power in the lower part of the spectacle lenses or as Zier¬ - releasably by means of permanent magnets in a pair of eyeglasses to attach (DE-OS 17 97 366, FR 9 15 421 , GB 8 55 268, US 27 37 847). With regard to the Permanentmagne¬ te the use of highly coercive Dauermagnetmate¬ rial was proposed (DE-OS 17 97 366).
Although it magnet this type of fixing by means of Permanent¬ and its attractions (adhesive forces) of Zube¬ stop allows to spectacles, hindrances in an easy, fast and zuver¬ casual manner and avoiding unacceptable Be¬, hazards and inconveniences for the user , optically effective parts of the accessory in the Strah¬ beam path of the eye in and herauszu¬ bring again from this as well as other, to fasten releasably substantially outside the optical eye optical path exploiting Knitting accessories to eyeglasses, wherein moreover because of the absence of bulky mechanical fasteners can retain the ursprüngli¬ che aesthetic effect of the glasses largely remained spectacles with means of permanent magnets to befestigendem accessories a launch date practically failed.
The reason for this is mainly to be seen in that headers of mounting arrangements for mounting accessories to Augen¬ - especially goggles - special requirements - particularly small, is as well as their shape organically and aesthetically einfügende in the eyewear design size, light weight and volume as well as high strength Beschleunigungs¬ and reliability of fastening and corrosion resistance - must be provided, which can only be met by special design of the permanent magnets.
Object of the present invention is to provide permanent magnets in conjunction with eyes headers - so as to form and accessories that a fastening arrangement for fastening the accessory to the eyes intentions - - insbe'sondere Brill'en insbe¬ sondere glasses - there is provided the above-mentioned at mounting arrangements as far as possible sufficient to alternate end besonde¬ ren requirements and there for a modular, system-like set of eyes intentions - enables and accessories, on ein¬ simple, fast and reliable manner and weitest- continuous prevention of disabilities, hazards - ins¬ special glasses and inconveniences for the user to visually effective Berei¬ surface of the accessory in the beam path of the eye in and bring out from it again, as well as other, essentially outside the optical beam path befin- founding accessories to your eyes intentions - particularly "glasses - solved to attach. D should abei the original tables ästhe¬ effect of eyes intent remain largely keep as ER.
The solution This edition features SUC-gt by the characterizing features of claim 1. The subclaims vorteil¬ embodiments of the invention to the content.
When carried out in the context of the present invention Un¬ investigations and tests has been found that on an accessory part that in a eyes intent - can act is attached, in use conditions considerable Beschleuni¬ b - in particular of a spectacle. These are most often caused by heavy body and head movements. Even higher than acceleration values ​​caused by heavy body or head movements can by violent hand movements, for example with a pair of spectacles and, in particular, for example, in laying a hard eyes attachment - in particular a spectacle - plate on a Tisch¬ or similar object occur.
It has been found that with acceleration levels up to about 5 g (g = acceleration of gravity), in some cases even up to about 10 g can be expected. The force acting on an accessory with the mass m K = mb. Accordingly, 0.025 kg and an acceleration b of, for example 5 g of a force acting on the accessory power K of about 1.25 Newton (N), with an acceleration of 10 g b obtained with a mass m of, for example, a force of 2.5 K N.
When carried out in the context of the present invention, investigations and tests was initially assumed manentmagneten two Per¬, which face each other with mutually the opposite sign polarity and each integral with a eyes header - are connected or an accessory, and • between - in particular of an eyeglass where Anzie¬ hung force occurs (adhesive force) F, with the aid of which Zube¬ earpiece at the eye header - is fixed - in particular of a spectacle. The force F desired - in the sense of Be¬ schleunigungsfestigkeit and thus reliability of the stigung Befe¬ and thus the purposes of the task - _ be K compensate for the occurring acceleration force by at least K, that is to the amount by F.
Fig. 1 shows schematically and clarity serving omission of further parts of the permanent magnets now designated with 034 and 036th Your opposite polarity is illustrated by arbitrarily marking with N and S. The permanent magnets 034, 036 are magnetized on the extent Ll, L2. In Fig. La schematically both permanent magnets 034 and 036 in the fixed state, so when the accessory is attached to the eyes intent, shown in Figure lb in the released state, ie, when the accessory is detached from the eyes intent is.
In the fastened state when the width h of the gap 035 between the two permanent magnets 034 and 036 small, gegen¬ over the total length L = Ll + L2, applies to the Anzie¬ hung force (adhesive force) F between the two permanent magnets 034 and 036 is approximately F £ s 4 * 10 5 f BJ (f ■ Quer¬ sectional area of the permanent magnets, B ^ = induction of Per¬ manentmagnete in the attached state corresponding operating point A of its Entraagnetisierungskurv-e. As a result, in conjunction with the previously genann¬ th requirement F ≥ K for the induction of the permanent magnets 034 and 036 the call B A ≥- 1,6 * 10 "3 \ | K / f '.
The permanent magnets 034 and 036 can, for example, - manufacturing technology both in terms of their manufacture and their subsequent incorporation into eyes resolutions insbeson particular glasses or accessories particularly advantageous - be cylindrical with - for example, equal - diameters D (Fig. 1) and lengths Ll and L2 (Fig. 1), which may be the same, for example.
The operations performed in the context of the present invention, studies and trials have shown that, for example zy¬-cylindrical permanent magnets 034, having a diameter of about 4 mm in eyes headers 036 nor - can be accommodated and accessories, whereby the thus formed mounting arrangement with respect to their - in particular spectacles organically and aesthetically fits size in the eyewear design and especially the eyewear and accessories user either by additional Volu¬ men nor extra weight interferes noticeably - and shape - low.
er¬ with the exemplary diameter D of about 4 mm, the cross-sectional area is approximately 1.2 * f to 10 m. From the previously stated requirement BΛ J ~ 1.6 * 10 VK / f to 036 of the mounting assembly in the mounted state (FIG. La), the result for the induction of the permanent magnets 034, in one exemplary accessory mass m of 0.025 kg and an acceleration example, b = 5 g with the associated force K of 1.25 N, the instruction B ^ 0.5 Tesla (T) to form the permanent magnets 034, 036, for example, an acceleration b = 10 g with the associated force K of 2.5 N B ^ statement 0.7 T for forming the Permanent¬ magnets 034, 036 for - corresponding to the increased "acceleration value of 10 g - acceleration of increased strength and reliability of the mounting of the accessories on the eyes intent, and in particular the spectacles.
In the illustrative, preferred cylindrical Aus¬ of the permanent magnets 034 education, 036 is no Einschrän¬ effect, but the permanent magnets 034, 036, for example, as a rectangular parallelepiped, for example with dimensions 3 x 3 were in the performed in the context of the present invention, investigations and tests , 5 x 5 mm 0, magnetized for example via the degree 3, wherein the fixing of accessories to the eyes headers - in particular spectacles - successfully tested.
Fig. 2 shows schematically a curve 01 by Entmagnetisierungsk *
Permanent magnets such as 034 and 036 is on the abscissa, as is generally customary for permanent magnets, which entma¬ gnetisierende field H = - NJ / μ Q applied (N = demagneti- sierungsfaktor, known to be 0 ≤ N ≤ 1, J = polarization, μ 0 - induction constant) on the ordinate the induction B.
Because the as set forth previously, necessary high B.¬ values, the permanent magnets 034, 036 very high, higher than B ^ values of the remanence B r and must have the Entma¬ gnetisierungskurve 01 should have a flat course possible. The latter more so than the angle α of the work 02 due straight COTG α = (1-N) / N due to the high, for example about 0.3 lying, by a small L / D ratio-related Entraagnetisierungsfaktors (Fig. La) N is relatively large. however, the ratio L / D has a low value, because in accordance with the object of not only the small thickness or the Druchmesser D - ie in the region of a few millimeters - must be maintained, but also the lengths Ll and L2 and the length L = Ll + L2 of the attached state (Fig. la) may be approximated to be regarded as a single permanent magnet, permanent magnets 034, 036th
For a flat curve of the demagnetization curve 01, it is necessary that the labeled 04 curve B = (BH) maχ / H the demagnetization curve 01 contacts with a very high B-value, why permanent magnets such as 034, 036 high values of maximum energy product or the Energie¬ density (BH) maχ (Q value) should have.
In addition to, as illustrated in the schematic diagram of FIG. 2, the demagnetization mög¬ lichst largely practically be a straight line, on which also the operating point P of the individual permanent magnets such as 034, 036 in the released state (Fig. Lb) should be located. In this way it can be ensured that magnets during repeated fastening and unfastening of accessories or Permanent¬ curve 01 is carried between the operating points A and P on the straight portion of the Entmagnetisierungs¬ and is performed in this manner, no demagnetization at lower values ​​B- ,
The the working point P determining load line 03 extends ß, which is given by COTG ft = (1-N) / N at an angle, the demagnetizing factor N now by the opposite L / D lower ratio Ll / D and L2 / D be ¬ true will and increased accordingly.
In continuation of the activities carried out under the present invention, investigations and trials has erge¬ ben that it worked out and above dar¬ defined instructions can be followed only by their special, be¬ below prescribed training in terms of the permanent magnets such as 034, 036th
To achieve the instructions proper high values of Induk¬ tion B ^ or the remanence B are maχ r and the energy product or the energy density (BH), the permanent magnets such as 034, 036 consist of per se known alloys containing at least one rare earth element and / or cobalt, n, such as samarium-cobalt, neodymium-iron-boron, lanthanum Ko¬ balt-, stanchions yttrium-cobalt, cobalt-cerium, praseodymium Kobaltlegie¬ and mixtures thereof and at least aluminum, nickel and cobalt alloys containing (AlNiCo alloys). Very particularly high values of the remanence B r and the energy product or the energy density (BH) maχ can be achieved when the permanent magnets such as 034, 036 of the Befe¬ stigungsanordnung having a magnetic anisotropy jausge¬ forms are, so that they have a preferred axis for have the magnetizations specific polarization J, wherein the high values ​​of the above magnetic properties at this magnetization easy axis, thus when the magnetic polarization J is in this axis can be obtained. The magnetic anisotropy and the Vor¬ associated reference axis is in manner known per se in the lung Herstel¬ of the permanent magnets such as 034, 036 of the arrangement in this Befestigungs¬ generated, for example, powdered by a magnetic field and / or heat treatment, by pressing from ¬ change material in a magnetic field prior to sintering or by cooling the hot magnets in a magnetic field.
The operating points A and P of the permanent magnets such as 034, 036 of the mounting assembly can be advantageously, haftkraft- and reliability enhancing manner to move in the direction of higher B values, when the permanent magnets are formed with a soft magnetic yoke 046 or 048 for the magnetic flux, so , as is shown schema¬ schematically in Fig. 3, wherein the Entraagnetisie- is decreased magnification factor. This configuration is shown in insbe¬ sondere AlNiCo magnets since their Entmagneti¬ sierungskurve - starting from high values ​​of the coercive field, which may be higher than 1 T - relatively steeply. The permanent magnets are here advantageously after introduction into the yoke - possibly again - magnetized.
When carried out in the context of the present invention, studies and experiments, the dependence of Anzeihungskraft (adhesive force) F between two mutually ge genpoligen, on the dimensions Ll (la Fig.) Gemes¬ sen, L2 Permanent¬ magnetized magnets from their mutual distance h , The result for example two cylindrical Permanentmagne¬ te 034, 036 with, for example, the D-diameter of about 4 mm and the lengths Ll and L2 of approximately 3 mm - that is, L / D ΛJ 1,5 - from a samarium-cobalt alloy with a (BH) m X πiα αv of about 170 KJ / m and a remanence B r of about 0.95 T and a coercive field strength - Q RQ of about 640 kA / m is shown in Fig. 4. The calculated with the previously mentioned formula force F is marked with x, and also carried ein¬ in the practice good agreement with the measurement. For example, magnification of Ll and L2 mπi to about 6, ie L / D κ 2.25 and 3, respectively, resulting in each case an advantageous Erhöbung the force values by about 20%, for example, reduction to about 2 mm, ie, L / D ~ 1.25 or 1, acceptable for very light accessories decrease by approximately 15%.
Referring to FIG. 4, it was found that the force F h with growing distances initially drops only slightly, so that for small distances h - practically the value of the force F at h = 0 can be taken - for example 0 to 0.3 mm. Furthermore obtained (Fig. 4), that for the permissible force F K = 2.5 N - correspondingly an acceleration b of 10 g at a Zubehör¬ partial mass m of 0.025 kg (improved reliability) - h approximately 0, may be 4 mm, for the allowable force K ■ * F = 1.25 N - corresponding to an acceleration-b of 5 g at a accessory mass m of 0.025 kg - about 1 mm. as a result of force measurements which means the design statement that the distance h of the permanent magnets 034, 036 in the fastened state, ie, when the accessory to the eyes attachment - in particular a spectacle - with the aid of the magnets is detachably fixed, the distance h is not greater than about 1/6 of total magnet length L = Ll + L2 should be.
This constructive instruction must wer¬ particular attention to, when the permanent magnets 034, einge- in capsule-like designed as sleeves or bushes housings 010, 011 036 are introduced (Fig. 5) as described later, in which case the smallest distance ossible h is given by the thicknesses BIO and Bll the bottoms of the cans 010, 011th In Fig. 6 is illustrated schematically with reference to two exemplary embodiment play, which were developed in the performed in the context of the present invention, studies and tests, shown schematically, in which extremely space-saving in terms of the task, the example zylin¬-cylindrical permanent magnet 034 with a diameter D of about 4 mm and a length Ll of about 3 mm, for example, a criterion Sama¬-cobalt alloy with, for example a (BH) maχ of about 170 KJ / m, the ten together with a similar Permanentmagne¬ 036 in the unillustrated accessory provides the beachtli¬ che adhesive force of about 3 N, can be accommodated, for example in metal eyeglass frames.
It has been found that, in particular for components having a relatively low mass m and rare earth alloys, ins¬ particular the terms of corrosion resistance very vor¬ geous samarium-cobalt alloys, with (BH) values ​​below 170 KJ / m, for example, can be successfully from about 140 KJ / m 3 is employed in the mounting assembly, wherein the Re¬ manenz B of such alloys, for example, at about 0.85 T lie¬ gene can. For particularly heavy components Permanent¬ are advantageous magnets with (BH) maχ values above 170 KJ / m 3, for example, of a neodymium-iron-boron alloy which advantageously with Kor¬ rosion contraceptive agents such as are provided, for example, paint layers, the remanence B r of such alloys, for example, about 1.1 T and (BH) maχ example, approximately at 230 KJ / m may be. 3 The values ​​of the coercive field strength ^ H the previously mentioned rare earth alloys are, for example above about 600 kA / In the exemplary embodiment according to FIG 6a is -., For example, fixed with adhesive or cast in plastic and thus well protected against corrosive influences - the permanent magnet 034 in a capsule-like executed as a sleeve or barrel housing 010, which is preferably soldered in the region of the bridge 016 in the spectacle frame 06 and beyond 034 protects the permanent magnets from mechanical damage and corrosive influences. In Ausfüh¬ approximately example shown in FIG. 6b is the permanent magnet 034 in a pocket-like extension 07 as an example gegosse¬ ner and / or embossed metal bars 08 running bridge 017 of a metal spectacle frame housed 09th
The invention is described in more detail below with reference to further schematic drawings of exemplary embodiments.
Fig. 1 permanent magnets of a fastening arrangement,
Fig. 2 shows the demagnetization curve with the operating points A and P of an ensemble of two permanent magnets of a fastening arrangement,
Fig. 3 permanent magnets with yoke for the magnetizations rule river,
Fig. 4 depending on the unused in the mounting assembly force F between two Permanentmagne¬ th of their mutual spacing h, Fig. 5 permanent magnets in capsule-like designed as sleeves or bushes housings,
Fig. 6 metal eyeglass frames with permanent magnet,
Fig. 7 is a Korrektionsbrille with attached light stabilizer,
Fig. 8 to
Fig. 11 magnet systems of the fixing arrangement,
Fig. 12 tion tower a Korrektionsbrille with attached Korrek¬,
Fig. TION 13 a prescription glasses with attached Korrek¬ or, corrective and light articles,
Fig. 14 is an auxiliary device for mounting glasses and / or accessories,
Fig. 15 a prescription glasses with attached guard member
Fig. 16 is a goggle with attached light stabilizer,
FIG. 17 is a tower diving mask with attached Korrektions¬.
In Fig. 7 is shown schematically as an exemplary embodiment for an eye intent with attached accessory a Korrek¬ tion glasses 2 with in bold for clarity replaced edges 4 and 6, jaws 8 and 10, Bügelschäften 12 and 14, bridge 16, Gläsernbzw. Lenses 18 and 20 and a fastened to the Korrektionsbrille sunscreen 22, transpa¬ rent and light attenuation at least approximately in the region of the beam path of the eyes, is shown. The upper part of Fig. 7 shows a plan view from the front, the lower part is a section AA. The sun protection 22 serves to protect the eyes in particular against glare and / or irritation while protecting it insbeson particular example may relate to the ultraviolet range, and non-visible areas d * light.
The mounting itself is carried out by means of two Permanent¬ magnets 34 and 36 each of substantially uniform, zueinan¬ the opposite polarity (by schematic 'Kenn¬ drawing with N and S illustrated) which are held together by the connection between them, holding force, wherein the permanent magnet 34 is fixed in the bridge 16 and the permanent magnet 36 fixed in an intermediate portion 28, 30 and 32 of the Lichtschut¬ zes carries the optically effective areas 22nd the areas 30, 32 and the intermediate part are produced by injection molding plastic part as a Kunst¬ 28 is particularly advantageous, wherein the permanent magnet 36 zumin¬ least may be encapsulated with partially. For example, the regions 30, 32 formed integrally 'and the permanent magnet 36 may directly be attached by gluing, on the light shield 22, for example. Further, the Permanent¬ can magnet 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 serve as supports for an accessory in the form of Lictitschutzes 22, wherein bevels 42 and 44 as specific agents which may be otherwise lost or designed, and in particular, for example, also can allow at least partial encompassing or form-closing of the intermediate part 28 in the upper and / or lower, not shown, the area of ​​the bridge 16, allow selbst¬-adjusting mounting and to provide firm seating gewähr¬.
The attachment of the permanent magnet 34 in the bridge 16 according to the embodiment of FIG. 7 does not Ein¬ represent restriction. Rather, the permanent magnet may also be mounted elsewhere in the Korrektionsbrille 2 34 and / or at least one other corresponding permanent magnet, for example above in Fig. 7 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 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 sunscreen 22 is then at least one Perma¬ mag- nets of Korrektionsbrille 2 opposite (at the appropriate point of the sunscreen 22 not darge provides). The same is true for the listed below yoke parts 50 and 51. Since the permanent magnets 34 and 36 each have a gestaltbe¬ dingt large demagnetizing factor, it is ten in the Permanentmagne¬ for achieving high magnetization values ​​and - associated therewith - of high values ​​of the adhesion strength
W generating magnetic charges or polestrengths most advantageously at their poles acting as interfaces to verwen¬ as permanent magnets 34, 36 for example the permanent magnets, the se in their preparation each having a Vorzugsach- 38, 40 for the magnetization - for example, by magnetic field and / or heat treatment - have been provided, which are schematically magne¬ anisotropically so, ie which have a magnetic anisotropy. The preferred axes 38, 40 of the permanent magnets 34, 36 are preferably approximately parallel to each other, for example as or shown in Fig. 7 in the section AA, for example, so as lung from the abstract point Darstel¬ of the permanent magnets 34, 36 shown on the right next to it is.
As the material for the permanent magnets 34, 36 is especially suitable magnetic materials containing at least one rare earth or at least one rare earth element and boron, such as at least cobalt and samarium enthalten¬ de alloys and at least neodymium, iron and "boron ent retaining alloys ,
Such alloys have in particular strength and the magnetic energy density so that 36 high adhesive forces are achieved with low volume permanent magnet 34, a favorable demagnetization curve at high values ​​of the Koerzitivfeid¬. The low volume of the magnets 34, 36 when executed by using said Magnetwerk¬ 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 critical physical size of the mounting arrangement can be further increased or the Volu¬ men of the permanent magnets - particularly cost - ver¬ wrestlers, when the permanent magnet 34 and the permanent magnet 36 about the manner of a so-called pot magnet in each case a yoke 46 and 48 for at least partially Auf¬ acquisition of passing through the permanent magnets, respectively, out of these passing magnetic flux, having so, as is schematically illustrated in Fig. 8a by be da¬ achieved by favorable operating points on the Entmagnetisierungs¬ curve of the permanent magnets.
Fig. 8b and Fig. 8c show scheraatisch sections of two, for example, specified embodiments of the permanent magnet 34 with its yoke 46 in the bridge 16, which in sinn¬ date transfer as embodiment for the permanent magnet 36 with its rear end 48 of the Zwischen¬ part 28 applies ,
In many cases, especially when a magnetic material is used with a particularly high coercive field strength and energy density for the permanent magnets, it is sufficient if the back yoke 46 permanent magnet 34 and the yoke 48 the permanent magnet 36 wraps only partially, examples game as U-shaped, so , as can be seen from the scheme of Fig. 8b, whereby also a very narrow bridge 16 allows. Particularly high adhesive strength is obtained when the back yoke 46 permanent magnet 34 and the yoke 48 the permanent magnet 36 is wrapped around the sides, for example as can be seen from the diagram of FIG. 8C.
In many cases, especially when the accessory, in the case of Fig. 7 or Fig. 8, the light shield 22, comprising ver¬ proportionate light weight, it is sufficient if only one permanent magnet provided with a back yoke 46 and 48, 34 or 36 becomes. In these cases, it is sufficient even frequently when a fastening arrangement has only one permanent magnet, that in the case of the embodiment entspre¬ accordingly FIG. 7 or FIG. 8, the bridge 16, the permanent magnet 34 or the intermediate part 28 of the permanent magnet 36 and a to the site the passing through of these permanent magnets, a rear closure member for at least partly receiving the permanent magnets, respectively, from these emergent, magnetizations rule flow occurs, so, as schematically beispiels¬ example in Fig. 9 for the bridge 16 with a yoke member 50, in conjunction with the intermediate part 28 with the Permanent¬ magnet 36 with its yoke 48 is shown.
Especially for particularly lightweight components, such as a particularly light sunscreen 22, it is sufficient, for example of FIG a modified simple mounting arrangement according to the Ausführungs¬. 10. Here, compared with the arrangement according to Fig. 9 in place of the permanent magnet 36 with its yoke 48 a permanent magnet 52 came, having segments of different polarity, so as shown by the schematic labeling with N and S in Fig. 10 will be illustrated as an exemplary embodiment with a two-sided mehr¬-pole magnet 52, which embodiment is no limitation on the possible polarity distributions means.
A permanent magnet 54 having sectors of alternating polarity may also be located in the bridge 16, while a Perma¬ nentmagnet 53 in the intermediate portion 28 (FIG. 11) or a short-circuit part 50 corresponding back yoke part 51 in Zwi¬ rule part 28 is located (not shown).
Through the various possible embodiments of the magnet systems within the mounting arrangement for Zube¬ listen to eyes intentions can be very beneficial for the case an accessory or eyes intent realize an optimal solution, especially when the possibilities regarding the choice of magnetic materials are included.
Preferably when the accessory, such as the Licht¬ guard 22, having a relatively low weight and the permanent magnet 34 with the yoke 46 and / or the permanent magnet is provided with the return path 48 36, can, particularly in terms of cost advantageous for Perma ¬ nentmagnete 34 and 36, even magnetic materials with lower values of coercive field strength and energy density than that are used already mentioned, for example, magnetic materials containing cobalt, especially * gene in Legierun¬ still further have at least aluminum and nickel as the component ( AlNiCo).
for example, especially the voraus¬-mentioned magnetic materials, also with regard to the particular because of their good workability in man¬ chen cases where, for example, a special formal adjustment of the permanent magnets is indicated, the use of rubber and / or plastic-bonded grains of magnetic materials, costs are favorable, particularly advantageous. Especially ferti¬ supply technically particularly advantageous possibility to larger areas wer¬ performed in such materials to the, eg larger areas of the intermediate part 28 or the entire intermediate part 28 containing, for example, kunststoff¬ bound granules of a cobalt and samarium alloy or plastic-bound granules of a neodymium, iron and boron containing alloy.
Mainly because of their relatively good processability, moreover, also cobalt alloys containing iron and vanadium additive, with at least iron and chromium addition, with iron, nickel, titanium and / or niobium addition, platinum, application-specific advantage. In particular, the cobalt-platinum alloys or enhancing adhesive force volumen¬ minimizing have high values ​​of the coercive field strength and the energy density, wherein this material bearbeitungs¬ friendly particularly low brittleness characterized and is extremely resistant to corrosion by virtually all corrosive media. Cobalt alloys with iron-nickel additive are also particularly suitable for melting into glasses, such as permanent magnets in spectacle lenses, which can be mounted with these permanent magnets on an eye intent for example, individually.
The back yoke 46 and 48 and the rear closure member 50 and 51 is preferably made of iron, it must, in particular, in view of the corrosion protection and in an economically favorable manner not act to Reinsteisen, so the iron can contain additives. In particular, for reasons of corrosion protection, the iron is preferably additionally provided with one or more protective layers and / or substantially extrusion-coated with plastics material.
The choice of material for the back yoke 46 and 48 and the rear closure member 50 and 51 is not limited to iron, but for this purpose numerous materials correspondingly high magnetic permeability are suitable, for example also Legie¬ stanchions containing iron and nickel, that is alloys that also are very vor¬ geous in terms of corrosion resistance.
Furthermore, suitable as the material for the back yoke 46 and 48 and the rear closure member 50 and 51, for example, a soft magnetic ferrites, such as the offer a number of advantages manganese-zinc ferrites. They can be already in the desired shape in its production (for example, during the pressing of the powdered materials Ausgangs¬) - eg a Rück¬ circuit according to Fig 8c -. Install, are characterized and cost of the material and forth as oxide ceramic material highly resistant to corrosion. In addition to their low density, ie low weight.
The information on the structure of the magnetic system made, especially with respect to materials and materials of the mounting arrangement, particularly for permanent magnets, yoke parts and conclusions related to ein¬ individual embodiments not mean that they could not be applied in other embodiments.
is shown in FIG. 12 as shown in Fig. 7 also, in turn, the Korrek¬ tion glasses 2 with casing edges 4 and 6, the jaws shown schematically 8 and 10 and the spectacle lenses 18 and 20 as the supervisory from the front. Instead of the photoprotection 22 12, in the case of the embodiment according to Fig. But now as an accessory a Korrektionsaufsatz 56 mounted with the lenses 58 and 60 on the prescription glasses 2, to which end the Korrektionsaufsatz preferably magnets, an intermediate portion 28 corresponding intermediate part 62 with a, for example, the Permanent¬ 36 of Fig. 7 corresponding permanent magnet (not shown) and the bridge further example, the permanent magnet 34 according to Fig. 7. Hereinafter is no limitation, but rather are all voraus¬ embodiments previously described used when fixing in connection with the mounting arrangement for the sunscreen 22 ¬ supply arrangement, in particular with respect to their Magnet¬ systems, for the fastening arrangement of the article Korrektions¬ 56 and other accessories can be used. Thereby, for example, may consist of one or more corrective 2, light 22, 56 and other parts Korrektionsaufsatz Zubehör¬ means compatibility in an advantageous manner a modular system glasses are formed.
The lenses 58 and 60 are preferably made of spritztech¬ cally and / or glass by hot stamping processable Kunststoff¬, but may also - especially if they are to have a beson¬ DERS high power or short focal length, of other glass, particularly silicate glass, are made, in which case the Korrektionsaufsatz 56 (not dargestell¬ te) socket parts for the lenses 58, comprises 60th
In the case of plastic glass Korrektionsaufsatz 56, corresponding to the light shield 22, including intermediate part 62 by injection molding as a plastic part is made particularly advantageous where, for example, the permanent magnet of the intermediate part 62 can be at least partially injection-molded around. To increase the mechanical stability, the Korrektionsaufsatz 56 to preferably at least partially reinforced edge areas 65 and / or 67 which are thickened highlighted in Fig. 12.
Accordingly, the regions 24 and 26 of the sunscreen 22, the Korrektionsaufsatz 56 preferably up and down somewhat (not shown in Fig. 12) on the bridge 16 that extends above portions 64 and 66 that as a means for gripping aid in attaching or disconnecting - now the Kor¬ rektionsaufsatzes 56 - serve. In special cases, such as when the Korrektionsaufsatz, to have the same light protection action, in particular to protect the eyes against glare and / or irritation and is modified to have increased light absorption, which may not affect vision panel cash area of ​​light also, it is preferably as Korrektionsaufsatz 68 with the Linsen¬ areas 70 and 72 and the intermediate part 69 is executed (scheme Fig. 13), which can be obtained particularly favorable, for example, by injection molding in the preparation of Korrektionsaufsatzes 68 and / or by Warraprägen.
A rapidly at a eyes attachment - for example, in the case of Figures 12 and 13 a prescription glasses. 2 -. Befes'tigbares Zube¬ earpiece in the form of a Korrektionsaufsatzes 56 and 68 is for the large number of very special Fehlsichtiger prakti¬ shear importance for sharp vision at distance and near, so-called multifocal lenses (multifocal lenses) need, including bifocal lenses (bifocal) with two regions of different refractive power or focal length: a top, as the distance portion and a lower, referred to as the near portion region. The near portion is smaller than the distance portion and in general has in the case of hyperopia a stär¬ Kere refractive power and shorter focal length than the distance portion, so that the near portion sharp vision at close range and the Fern¬ allows some sharp vision in the far range.
The related in the context of the present invention term "glass" is not a limitation, especially in terms of mineral or silicate glasses are, but this eg can also be understood plastic glasses. Fig. 14 shows schematically another accessory that tert the procedure described above additionally erleich¬. . This accessory comprises' as an auxiliary device 74, as in the plan view in the left part of Figure 14 schematically ange¬ indicated, is a region 76, the magnetic and hin¬ clearly corresponds to the dimensions of the bridge 16, so that - compatible with the Corrective 2 - Korrektions¬ tower 56 and 68 can be attached to the auxiliary device 74th The auxiliary device 74 includes means 75 for attachment to articles of clothing on, in Fig. 14, for example, a pin. If the auxiliary device worn dung subject to a Klei¬ 74, 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 Korrektionsbrille 2 itself, but also other accessories, such as sun protection 22 can be releasably attached to the auxiliary device 74th
Practically especially meaningful exemplary embodiment also are games in which the agents are replaced an instrument panel 75 for attaching to objects Kleidungs¬ by means for attachment to solid Gegenstän¬ to, for example, for example, by an adhesive layer (not shown).
Another accessory for the Korrektionsbrille 2, the rapidly aus¬ with the inventive attachment arrangement can be exchangeable attached to the prescription glasses 2 and that is bedeu¬ tung fully especially for occupational safety area, shows an exemplary embodiment the display of Fig schematic see. 15, corresponding to the Schnittdar¬ position of FIG. 7, where now protection to the site of the Licht¬ 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 has entered. Natür¬ Lich, the protective member 78 also have an increased light attenuation and simultaneously act as light stabilizers, especially for example during welding, as well as light stabilizers, for example, in sports, in which the light-shielding insbeson particular the protection of the eyes from glare and / or irritation serves and protection can meet the ultraviolet region be¬ also the invisible area of ​​light, especially, for example.
While the embodiments described above for the inclusion of eye attachments and accessories in the inventive mounting arrangement of a Korrek¬ tion glasses proceeded as eye header, Fig. 16 Scheme raatisch an embodiment in which an eye-header of a eye and face protection in the form of a so- ¬ called goggles is considered the 80th . FIG. 16 is a plan view of the top of the front, Figure 16 schematically shows a section BB below, which also behind the - window 84 parts located vision panel are shown - transparent.
In Fig. 16, a light shield 82 is schematically shown as an exemplary embodiment of an accessory, the example as a coherent, light attenuating plastic part is herge¬. The sun protection 82 serves in particular to protect the eyes against glare and / or irritation, the scope may relate to the ultraviolet range, and the non-visible range of light, especially, for example. The Licht¬ guard 82 is preferably attached to the inside of the one- or multi-walled viewing window 84, which is located in a frame 85th For this purpose, for example by means of adhesive layers 86 and 90, permanent magnets 88 and 92 or parts 87, 89, in which the mounted at least partially on the window befin¬ 84th 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 against pole permanent magnets are in the intermediate portions 94 and 96, 98 to 100.
The similarity of the two magnet systems with the Perma¬ mag- nets 88 and 98 or 92 and 100 of the exemplary embodiment Match corresponding to FIG. 16 is not a limitation, but, when using a plurality of magnetic systems for fastening arrangements for accessories to the eyes attachments also divergent magnetic systems, eg with and without conclusion part 50 and 51, respectively, used.
The intermediate parts 94, 96 and the parts 87, 89 have vor¬ preferably bevels 95, 102 and 97, 104 guaranteeing as a means for self-aligning, tight securing of the permanent magnets 98 and 100 and len of the Zwischentei¬ 94 and 96 to the permanent magnets 88 and 92 and at the portions 87, 89 and thus of the sunscreen 82 at the viewing window 84 on. The An elastic band 106 serving as a configuration example of the projecting portions 108 and 110 serve as gripping aids in rapidly attaching or during rapid separation of the Lichtschmtzes 82. The attachment to the head.
a Korrektionsaufsatz may, for example (for example, for the case of myopia for the long range) occur (not shown) and the combination of both is possible at the location of the sunscreen 82, either tone of the Korrektionsaufsatzes or by simultaneous mounting of light protection and Korrektionsaufsatz appropriate configuration the intermediate parts (not shown).
In Fig. 17 is shown schematically as a so-called eye intent goggles as supervisory from the front, whereby behind the - transparent - fixed viewing window 128 parts darge assumed and shown as section CC. Here is naturally as an accessory a Korrektionsaufsatz 114 with lenses 116 and 118 are of particular practical interest.
To keep the vision due to the mounting arrangement as low as possible and to ensure a correspondingly high requirements secure attachment, are - as in the embodiment with goggles 16 correspondingly Fig also -. The fastening arrangements in the embodiment of Figure 17 is preferably in the lateral region. the eyes resolutions introduced ange¬ on the edge of the field. For this purpose, in the embodiment of Fig. 17, for example by means of adhesive layers 120 and 122, permanent magnets 124 and 126 and portions 121, 123, in which they are located, at least teil¬, attached to the viewing window 128, which is located in a frame 129th The Korrektionsaufsatz 114 has intermediate parts 130 and 132, with which it can be advantageously manufactured in a spritz¬ technical operation in Ver¬ application of plastic lenses. In the intermediate portions 130 and 132 are the opposite polarity in each case to the permanent magnets 124 and 126, permanent magnets 134 and 136. To increase the mechanical stability 114 has the Korrektionsaufsatz preferably at least partially reinforced edge portions 117 (in FIG. 17 above thickened highlighted).
The intermediate parts 130, 132 and the portions 121, 123 preferably have bevels 137, 138, 139, 140, guaranteeing as a means for self-aligning, tight securing of the permanent magnets 134 and 136 or their Zwischentei¬ len 130 and 132 on the permanent magnets 124 and 126 and thus the Korrektionsaufsatzes 114 at the window 128.
The configuration example of the projecting portions 142 and 144 serve as means for gripping aid in quickly fastening or during rapid separation of the Korrektionsaufsatzes 114. An elastic band 146 is used to attach the head, a rubber insert 147 of the water seal.
Similar to the goggle 80, further Befesti¬ are given supply options, including a further, corrective attachment for realizing the near zone in the case of Mehr¬ strength glasses (multifocal lenses)-requiring vision defects speed (not shown).
It can, especially for long-sighted, even alone a Korrektionsaufsatz for close range - at the bottom of the field of view - or, particularly for near-sighted, only one Korrektionsaufsatz for the long range - in the upper region rich field of view - attached to the window 128 wer¬ to.
In place of the goggles 80 or the diving mask 112 also has a similar structure work goggles can enter 113 by the same embodiments for components, which illustrates by the addition to the name 80 of the ski goggles in Fig. 10 registered name 113 is τ.
The embodiments previously described with the light shield 22, 82 as well as the Korrektionsaufsätzen 56, 68, 114, each having the optically effective elements for the light beams of both eyes, mean restriction no Ein¬, but these elements may, e.g., "B. the lenses 58 and 60 or 70 and 72 and lenses that can vary greatly in def form of this, by integrating with the inventive attachment arrangement also individually eyes intentions - for example, correction lenses behind the protection glasses a welding goggles (not shown) - to be fixed. In the previously described embodiments of FIGS. 6 to Fig. 17 for the attachment of accessory parts with permanent magnets according to the invention is no restriction Ein¬.
Instead, the eyes resolutions may include, for example, even eyeglass frames without lenses. Further, in a very advantageous manner, the Korrektionsbrille 2 may be simultaneously formed as Lichtschutz¬ glasses in which their glasses 18, 20 with an increased light attenuation - to be provided - for example, by tinting.
but it can occur a pure light goggles also in a very advantageous way for the user to replace the prescription glasses 2 by protecting their lenses 18, 20 are formed without intended corrective effect and only by increased light attenuation the user's eyes to light, and also a certain protection the eye is given to mechanical influences by spectacle frame and glasses. Also this can be used in the previously described embodiments of FIGS. 6 to FIG. Accessories described 17 in the user very vorteil¬ manner, wherein for example, when attaching the sunscreen 22 damping the Licht¬ at a light protective goggles or light protection effect is increased and eg with a yellow in transmission sunscreen 22 Blue in Green - - can be changed / or the review of color. To be of particular practical advantage is also preferred that light attenuation of the glasses of the light goggle with he find proper permanent magnets from top to bottom Waning form and the light attenuation of the glasses Licht¬ protection 22 from top to bottom increasingly, so that in i a review of the attached state results in a uniform, relatively strong light attenuation.
In particular, for myopic is fixed with erfindungsgeraäßem permanent magnet so as accessory with Erfin dungsgemäßem permanent magnet a Korrektionsaufsatz for the remote area of ​​great advantage, for example, at the Lichtschutz¬ glasses that its (negative) refractive power at the top of the field of view is effective.
The sun protection 22 may be advantageously forms ausge¬ for drivers in a conventional manner as anti-glare for motorists.
Particularly advantageously can be further with the aid of the inventive permanent magnets attach to eyes intentions accessory that is in the fastened state is substantially outside the optical eye optical path, such as containers for temporarily storing volatile substances, in particular perfumes, jewelry and / or decorative elements, hearing protection pieces for insertion into the ears, ear tips of hearing aids, cable cord holder, lights, electronic and / or electro-acoustic devices such as hearing aids, radio transmitter and / or -empfän- ger, measuring instruments (for example, radioactive radiation), earphones, wherein the attachment of such components, in particular can also be done at the temples.
1. Fixing arrangement for fixing accessories to a eyes attachment by at least one Permanent¬ magnet, characterized in that at least one of the permanent magnets (034, 036; 34, 36; 52; 53, 54; 77; 88, 92, 98, 100; 124, 126, 134, 136) contains at least one rare earth and / or cobalt.
2. A fastening arrangement according to claim 1, gekenn¬ characterized characterized that one or more of the permanent magnets have a magnetic anisotropy according to claim 1, wherein ange¬ the data associated with the magnetic anisotropy easy axis (38, 40) a plurality of permanent magnets passes, parallel aligned with each other.
3. Fastening arrangement according to one of claims 1 and 2, characterized in that at least one of the permanent magnets according to any one of claims 1 and 2, a back yoke (046, 048; 46, 48).
4. Fastening arrangement according to one of claims 1 to 3, characterized in that the ratio (L / D) of the total length (L = Ll + L2) nentmagnete to the thickness (D) of the Perma¬ according to any of claims 1 to 3 including the range limits approximately in the range of the numerical values ​​1 to 3 is located.
5. A fastening arrangement according to one of claims 1 to 4, characterized in that the distance (h) between the permanent magnets (034, 036; 34, 36; 53, 54; 34, 77; 88, 98, 92, 100; 124, 134, 126, 136) in the mounted state is less than or equal to about 1/6 of its entire length (L = Ll + L2).
6. Fastening arrangement according to one of claims 1 to 5, characterized in that at least one of Perma¬ nentmagnete according to one of claims 1 to 4, a rear closure member (50; 51) is releasably secured gegenüber¬ when accessories according to claim 1 to a Augenvor¬ rate is fixed according to claim. 1
7. Fastening arrangement according to one of claims 1 to 6, characterized in that at least one Permanent¬ magnet according to any one of claims 1 to 5 or minde¬ least one rear closure member (50; 51) in the region of a bridge (016; 017; 16) and / or an intermediate part (28; 62; 69; 79; 94, 96; 130, 132) is attached.
8. The fastening arrangement according to one of claims 1 to 7, characterized in that at least one eye of intent according to claim 1 and at least one accessory according to claim 1 means (42, 44; 95, 97, 102, 104; 137, 138, 139, 140) for a snug fit and / or self-aligning mounting the accessories have at least one part of the at least one eye intent.
9. A fastening arrangement according to one of claims 1 to 8, characterized in that the eyes attachment according to claim 1 as a glassless spectacle frame or rektionsbrille as Kor¬ (2) or as light protective goggles, or as, corrective and light protection glasses or as Arlseits- goggle (113) or as goggles (80) or formed as goggles (112) and the accessory according to claim 1 at least one light stabilizer (22) and / or at least one Korrektionsaufsatz (56; 68; 114) and / or at least one protective member (78) and / or at least an auxiliary device (74) as a holder for at least an accessory part and / or at least one anti-glare for drivers and / or at least one container for temporarily storing volatile and / or at least one decorative and / or Zier¬ element and / or at least one hearing protection piece and / or at least one ear tip of a hearing aid and / or at least one light and / or at least one elek¬ tronic a standardized and / or at least one earphone.
PCT/DE1990/000098 1989-02-18 1990-02-14 Fastening arrangement WO1990009611A1 (en)
DEP3905041.6 1989-02-18
DE19893905041 DE3905041A1 (en) 1989-02-18 1989-02-18 Fastening arrangement
DEP3919489.2 1989-06-14
DE19893919489 DE3919489A1 (en) 1989-02-18 1989-06-14 Magnetic accessory attachment aid for spectacles
DE19893920879 DE3920879A1 (en) 1989-02-18 1989-06-26 Magnetic accessory attachment aid for spectacles
DEP3920879.6 1989-06-26
DEP3921987.9 1989-07-04
DE3924785 1989-07-26
DEP3924785.6 1989-07-26
DE19893933310 DE3933310A1 (en) 1989-07-26 1989-10-05 Magnetic accessory attachment aid for spectacles
DEP3933310.8 1989-10-05
WO1990009611A1 true true WO1990009611A1 (en) 1990-08-23
ID=27544536
EP (1) EP0458815A1 (en)
JP (1) JPH04504177A (en)
WO (1) WO1990009611A1 (en)
WO2002042830A1 (en) * 2000-11-27 2002-05-30 Multi Concept Optical Manufacturing Limited An auxilary spectacle structure in a combination eyeglass device
WO2003067310A1 (en) * 2002-02-07 2003-08-14 Hun-Yang Park Eyeglasses with auxiliary eyeglasses having an excellent jointing performance
FR1201643A (en) * 1958-07-08 1960-01-04 immersed landing
FR2122776A5 (en) * 1971-01-22 1972-09-01 Heijmer Lars
DE2902841A1 (en) * 1978-01-27 1979-08-02 Verzinkerei Zug Ag bearing arrangement
GB2125493A (en) * 1982-08-06 1984-03-07 Johnson Leslie Vincent P Rotary seal assembly
BE1001471A7 (en) * 1988-03-04 1989-11-07 Pantusa Eugene Bearing immersed in molten zinc - is supplied with gas at greater pressure for sealing and cooling
EP0369878A1 (en) * 1988-11-17 1990-05-23 Societe Nationale D'etude Et De Construction De Moteurs D'aviation, "S.N.E.C.M.A." Bearing-chamber comprising a deflection screen
Patent Abstracts of Japan, Band 7, Nr. 273 (C-198)(1418), 6. Dezember 1983 & JP-A-58151464 (NITSUSHIN SEIKOU), 8 SEptember 1983 *
Solid State Communications, Band 15, Nr. 5, 1 September 1974, Pergamon Press, (GB), K.H.J. BUSCHOW et al.: "Crystal-Field Anisotropy of Sm3+ IN SmCo5", seiten 903-906 *
EP0458815A1 (en) 1991-12-04 application
JPH04504177A (en) 1992-07-23 application
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