JPH04504177A - Fastener - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Fastener Technical field The present invention is based on claim 1 and relates to a fixing device according to the same.

Background technology Ophthalmic devices are essentially eye protection, partly eye area and facial protection, eye used to correct visual acuity, and to produce aesthetic effects.

Users often desire ophthalmic devices that perform several functions of this type.

A corrective eyeglass-type ophthalmic device at least partially adapted to protect against dazzle. A particularly important example is the case of eye devices that have the function of protective glasses. .

In order to meet the above requirements, lenses for protection against dazzle are available in the form of accessories. A lens placed in the optical path, especially for protection against dazzle, is used for corrective purposes. It is known that lenses that are movably fixed as accessories are available for other lenses. . According to one of these, anti-glare lenses, due to their fixing conditions, Can move in or out of the road. The downside of these things in particular is the accessories (this ophthalmic devices, such as anti-glare lenses or glasses) and corrective glasses. This is a fastening mode using a mechanical method, and this fastening mode is particularly important for clamping mechanisms and When using a spring mechanism, it may cause disturbance and the Bulky features can scratch clothing and also substantially reduce the original aesthetic effect of the glasses Therefore, it is considered to be particularly undesirable.

In contrast, accessories, especially attached lens types that have a positive refractive index at the bottom of the lens. permanent magnets on the glasses to make them removable. (DE-OS 1797366, PRUS 42 1. GB 85526LυS 2737847). As for permanent magnets, they are expensive. A permanent magnetic material with coercive force was demonstrated (DH-OS 1797336).

This permanent magnet and its attractive force are used to attach accessories to glasses easily. Simple, quick, and reliable, and eliminates obstacles, dangers, and inconveniences for users. of the accessory in the optical path of the light entering the eye in a way that prevents the Optically moving in and out the effective part, as well as substantially controlling the optical path of the light entering the eye. Allows you to attach accessories to the outside. In this case, mechanical bulk Since there are no adhesive elements, the original aesthetic effect of the glasses is also maintained. However, this Eyeglasses with accessories that are fixed by permanent magnets are a poor choice for entry into the eyewear market. I lost.

The reason for this is primarily that its shape, organizationally and aesthetically, the design of the glasses, its small size. Small size eyes adapted to light weight, acceleration resistance, fixation reliability and corrosion resistance special requirements for equipment, especially fasteners for fastening accessories to eyeglasses. It is believed that this requirement will be achieved through the significant development of permanent magnets. You could think so.

Purpose of invention The object of the invention is to provide permanent magnets related to ophthalmic devices, in particular eyeglasses and accessories. The special requirements mentioned above have been developed to meet the above-mentioned special requirements as much as possible. devices, especially systems consisting of eyeglasses and accessories, can be easily, quickly and Not only is it reliable, but it is also highly preventive to prevent obstacles, dangers, and inconveniences for users. optically align the effective part of the accessory with respect to the optical path of the light entering the eye in a stopped manner. as well as placing the accessor substantially outside the optical path of the light entering the eye. Fixing accessories to ophthalmic devices, especially glasses The objective is to provide a fixing device for According to this fixation device, the device for the eye The original aesthetic effect is also maintained as far as possible.

Disclosure of invention The solution to this object is achieved by the features stated in the first claim.

The dependent claims contain advantageous aspects of the invention.

In the experiments and tests carried out on the configuration of this invention, a device for the eye, It has been observed that significant acceleration forces can act, especially on accessories that are fixed to eyeglasses. Served. These often occur especially when the human body or head moves strongly. Canada The value of the velocity is, for example, especially in the case of eyeglasses, and in particular in devices for the eye, especially in the case of eyeglasses. If the mirror is rigidly mounted on a table or similar structure, greater than the acceleration caused by the movement of the part.

The acceleration value reaches approximately 5g (g is gravitational acceleration), and in some cases reaches 10g. It is predicted that For the force acting on an accessory with mass m, K = mb. Therefore, it is expressed as Therefore, the mass m is, for example, 0.025 kg, and the acceleration is For example, if the weight is 5g, a force K of 1.2SN (two Newtons) will act on the accessory. However, if the acceleration is 10g, the force is 2.5N.

In experiments and tests conducted on configurations of this invention, certain located opposite and having opposite polarity to each other, devices for the eye, especially eyeglasses, and We started with two permanent magnets that were securely coupled to the accessory. those two Between the permanent magnets there is a trigger that allows the accessory to be attached to an ophthalmic device, especially eyeglasses. A force F is generated. And the force F is the resistance to acceleration and the reliability of the fixation. At least in the sense of the objects to be placed, Compensate for the force K generated due to velocity. In other words, this means that F≧ ・Means.

Figure 1 shows permanent magnets 034 and 036. Please note that other parts are added for clarity. is omitted. An arbitrarily determined pole N as those poles of opposite polarity and S are drawn. Permanent magnets 034, 036 have dimensions Ll and Ll horizontally. It is cut and magnetized. 'M1 Figure 8 indicates that the accessory is attached to the eye device. The state of permanent magnets 034 and 036 in the fixed state is shown, and the state of the permanent magnets 034 and 036 is shown in Figure 1 b shows the accessory in the free state, separated from the ophthalmic device. The state of the magnet is shown.

In the fixed state, the width of the gap 035 between the permanent magnets 034 and 036 is Due to the attractive force F acting between the permanent magnets 034 and 036, the overall length L-Ll It is smaller than +L2, and Fb4xlO”fBa is appropriate.Here where f is the cross-sectional area of the permanent magnet, and BA is the operating point on the degaussing curve corresponding to the fixed state. This is the magnetic permeability at A.

Regarding the above-mentioned requirement that F≧, the magnetic permeability of permanent magnets 034 and 036 is As a requirement for We can obtain the condition that .

Their functions, as well as their processing and subsequent equipment for the eyes, especially eyeglasses , or in connection with special specification accessory applications, permanent magnets 034 and 0 36 should be, for example, cylindrical in shape, and also, for example, their cylindrical shapes should be the same. and their lengths Ll and Ll should be equal ( (See Figure 1).

The experiments and tests carried out in the construction of the present invention have shown, for example, a permanent magnet with a diameter of about 4 mm. Stones 034 and 036 can be attached to ophthalmic devices, especially eyeglasses, and accessories. The developed fasteners can be matched with their shape, size and eyeglass design. aesthetic effect, especially due to their additional volume or weight. As a result, it does not significantly impede the use of glasses or accessories. showed that.

With the illustrated diameter of about 4 mm, the cross-sectional area f is about 1.2 x 10-ml. can get. 8 above. is approximately equal to l, 6X10-'(K/f)"" or From the condition that the mass of the accessory should be large, for example, if the mass of the accessory is 0.0 25 kg, and the acceleration due to the force F of 1.25 N acting on it is 5 g. It's like sticking! ! In (a) of Fig. 1, the permanent magnet 034 and and the magnetic flux B of 036 is approximately equal to or larger than 0.5 Tesla (T). We get the conditions that it should be. In addition, a force F of 2.5N acts and In a stuck state where the acceleration is 10 g, the increased acceleration log As a configuration corresponding to the magnetic flux B of the permanent magnets 034 and 036 in the fixing tool should be approximately equal to or larger than 0°7 Tesla (T). The condition is obtained, and by satisfying this condition, the resistance to increased acceleration and This results in reliable fixation of eyeglasses and accessories to ophthalmic devices, especially eyeglasses.

The cylindrical permanent magnets 034 and 036, which are the preferred shapes illustrated, are particularly In experiments and tests introduced into the configuration of the present invention, without limitation, permanent magnets 034 and 036 for example for attachment to accessory eye devices, especially eyeglasses. For example, the dimensions are 3X3.5x5mm' and the dimensions are 3mm. We also experimented with the shape of magnetized right-angled parallel pipes.

Figure jf12 shows the demagnetization curve of permanent magnets used as permanent magnets 034 and 036. This is a diagram illustrating O1. On the horizontal axis, as in the case of permanent magnets, the demagnetizing field H-- NJ/μ, is flattened (however, N is the demagnetization rate, and generally 0≦ N≦1, J is polarizability and μ is magnetic permeability), and the magnetic flux density B is plotted on the vertical axis. ing.

In order to obtain the above-mentioned required high BA value, the permanent magnets 034 and 036 are Should have a high value as the remanence Br above A, the demagnetization curve 01 is possible Should have as flat a progression as possible. The latter has a high dissipation value, e.g. As a result of the magnetic constant N, cot α = (1-N)/N, so the load line 02 angle α should be relatively large, so that The L/D ratio is small (Fig. 1 aUS>). The thickness or diameter should be small, on the order of a few mm. In addition, the lengths Ll and L2 of the permanent magnets 034 and 036 or the length LL 1+L2 (FIG. 1a) should be small as well. This causes a stuck condition. In this case, it can be seen as a single permanent magnet.

For the flat progression of the degaussing curve O1, curve B with code 04 = (BH) m a x / H must contact the demagnetizing gAO1 at the highest possible B value. This means that the permanent magnets 034 and 036 are This is the reason why the maximum value of the energy density must be high.

Also, as clearly shown in FIG. 2, individual permanent magnets 034 and 036 It is practically possible to create a degaussing curve in which the operating point of the characteristic curve is in the free state (see Figure 1). It should be as straight as possible. In this way, accessories or permanent magnetic Since the stone is repeatedly fixed and released in the straight line part of the demagnetization curve, the operating points A and P are It is guaranteed that demagnetization at low B values will not result. be done.

The load line 03, which determines the operating point P, extends at an angle β, and this angle β is cotβ= It is given by (1-N)/N. Here, the demagnetization rate N is the ratio Ll/D or Determined by L2/D. These ratios Ll/D or L2/DIiL/D is smaller than and correspondingly increases.

In repeated experiments and tests on the configuration of the present invention, permanent magnets 034 and The requirements raised and mentioned in relation to It was confirmed that it can be satisfied by

Regarding requirements, high magnetic flux density BA or residual magnetism Br and energy or To maintain energy density (BH) max, permanent magnets 034 and 036 are , at least rare earth elements, and/or cobalt, e.g. umium-cobalt alloy, neodymium-iron-boron alloy, lanthanum-cobalt alloy, Yttrium-cobalt alloy, cerium-cobalt alloy, praseodymium-cobalt alloy metal alloys and mixtures thereof, or at least aluminum, 2.1 Kel and an AlNlCo alloy containing cobalt. Fixation The permanent magnets 034 and 036 of the fixture have a preferred axis for magnetic polarization J. When formed magnetically anisotropically, a high value of magnetic properties is obtained in the preferred axis. achieved with high values of remanence Br and energy or energy density ( BH)max can be achieved. That is, the line of magnetic polarizability J is It is on the axis.

The preferred axis of magnetic anisotropy or the like is the permanent magnet 034 of the fixture. and 086 by methods known in the art. e.g. magnetic field before sintering. cooling a hot permanent magnet in a magnetic field. There are methods such as magnetic field and/or heat treatment.

As shown in Figure 3, a yoke with low coercive force where the demagnetization rate decreases due to magnetic flux If a permanent magnet is formed with 046 or 048, the permanent magnet of the fixing tool Operating points A and P of stones 034 and 036 can increase attraction and reliability. Therefore, it can be replaced in the direction of a higher B value. This progress is especially important for AlNIC0 magnets. Accomplished by stones. Their demagnetization curves are derived from high values of remanence exceeding IT. This is because it starts and then falls off relatively quickly. Permanent magnets are required after attachment to the yoke. magnetized accordingly.

In experiments and tests on the configuration of the present invention, the magnetic poles of each other are of opposite polarity. between two permanent magnets facing each other and magnetized along dimensions Ll and L2. The characteristics of the attractive force F were measured for the case where the distance between the two was h. As a result For example, the diameter is about 4 mm, and the lengths Ll and L2 are each about 3 mm. , therefore, the L/D ratio is about 1.5 and the (B)()max value of 170 kJ/m' , 0.957 remanence, and 5) 640 kA as the value of the high pressure region of Ic. Two cylindrical magnets 034 and 2 made of samarium-cobalt alloy with /m The characteristics of 036 and 036 are shown in FIG. Calculated by the above formula marked with X The measured force F is in good agreement with the actual measurement results. For example, Ll and L2 An increase of about 6 mm, i.e. L/D of about 2.5 to 3, is about a 20% increase in gravity. invite.

Also, for example, an increase of about 2 mm, that is, an L/D of about 1.25 to 1, is extremely requires about a 15% reduction in the weight of light accessories.

In Figure 4, the attractive force F decreases slightly as the initial Mh increases, and is approximately 0 to 0. ．． It can be seen that for a smaller distance of 3 mm, a force F at ho is taken.

Also, the determined force K acts on an accessory with a mass of 0.025 kg (acceleration of 10 g The force F is 2.5 N, which corresponds to , while the value of h is Q, 4 mm, and A force K acts on an accessory of mass 0.025 kg (1, 2, corresponding to an acceleration of 5 g) For a force F of 5N, the value of h is approximately 1 mm. From the results of gravitation measurements, it is clear that wearing condition, i.e. the accessory is removably stuck to an ophthalmic device, especially glasses In this state, the distance between permanent magnets 034 and 036 is the total length of the magnets! It can be seen that there is a requirement that it not be larger than 1/6 of LI+L2.

This structural requirement requires permanent magnets 034 and 036 to be placed in a case as shown in FIG. or by loading it into a capsule-shaped casing formed in the form of a sleeve. In this case, the minimum possible lighting is the sleeves 010 and 011. The bottom thickness is given by BIO and Bll.

Figure 6 shows two illustrations developed through experimentation and testing for the configuration of the present invention. This figure shows an excellent distance securing method related to the purpose of the present invention. is disclosed. In the same figure, the diameter is approximately 4 mm and the length Ll is approximately 3 mm. For example, samarium-conol whose (BH)max is about 170KJ/m' A cylindrical permanent magnet 034 made of metal alloy is attached to a metal eyeglass frame. It is installed. Although not shown, the same accessories as permanent magnet 034 are also available. A permanent magnet such as the like is attached, and both provide a moderate attractive force of 3N.

Particularly for accessories with a small mass m, rare earth elements are particularly useful for corrosion resistance. Summary with (BH)max of 70 KJ/m” or less, for example 140 KJ/m” Um-cobalt alloys are suitable for fasteners. An example of this type of alloy is remanence Br. It is approximately 0.857. Especially for heavy accessories, 170KJ/ Permanent magnets with (BH)msx greater than m' are preferred. This kind of permanent magnet For example, there is one made of neodymium-iron-boron alloy. It is suitable for use with corrosion-resistant materials such as. This type of alloy has a residual magnetism Br For example 1. IT, and (BH)max is, for example, 230KJ/m''. Above The length of the high-pressure region of the rare earth element is 5l (c is, for example, about 600 kA/m).

In the preferred embodiment shown in FIG. Permanent magnet 034 fixed in the rustic and protected against the effects of corrosion. , is suitably soldered to the area of the frame 016 of the eyeglass frame 06, and is permanently attached. Case or sleeve shape to protect magnet 034 from mechanical damage and corrosion It is arranged in a formed capsule-type housing 010. Preferred as shown in Figure 6 In a preferred embodiment, the permanent magnet 034 is attached to the casting part of the beam part 08 of the metal eyeglass frame. The hole is provided in a pocket-shaped expansion part 07 formed by punching.

The invention will be explained in more detail below by means of preferred embodiments accompanied by drawings.

Brief description of the drawing Figure 1 shows the permanent magnets in the fixture, Figure 2 shows the two permanent magnets in the fixture. Figure 3 shows the degaussing curve with operating points A and P of the magnet; Figure 4 shows a permanent magnet with a yoke, between two permanent magnets in a fixture. Figure 5 shows the dependence of the acting force F on the distance between the magnets. A diagram showing a permanent magnet attached to a capsule-type 11 housing formed in a tube shape. Figure 6 shows a metal eyeglass frame with a permanent magnet, and Figure 7 shows a frame with a light protective member. Figures 8 to 11 show the fixed corrective eyeglasses and show the magnet system in the fixing device. The figures shown in FIG. 12 are corrective glasses with fixed corrective devices, and FIG. 13 is corrective glasses with fixed corrective devices. Figure 2 shows corrective eyeglasses with corrective devices or tools for corrective and light protection; , FIG. 14 is a diagram showing an auxiliary device for attaching eyeglasses and/or accessories, FIG. Figure 15 shows corrective eyeglasses with a fixed protector, and Figure 16 shows a corrective eyeglass with a fixed protector. FIG. 17 is a diagram showing ski goggles having a light protection part, and FIG. It is a figure showing goggles for diving.

BEST MODE FOR CARRYING OUT THE INVENTION FIG. 7 shows a preferred embodiment of a device for an eye with an attached accessory for correcting the eye. Mirror 2 is shown. These corrective glasses 2 have clearly drawn fringes for emphasis. murim 4 and 6, diso india 8 and 9, temple shaft 12 and 14 , bridge 16, glass portion or lenses 18 and 20. and corrective glasses. It has a light protection device 22 fixed to it. This light protection device 22 is transparent and lightweight. , covering at least the area by the optical path that enters the eye. The upper part of Figure 7 is a front view. The lower part is a sectional view taken along the line A-A, which can be seen from the same front view. The light protection equipment 22 protects the eyes from protection, in particular from dazzle and/or irritation, and Protective equipment involves light in the invisible range, especially ultraviolet light.

The fixations each have unity and opposite polarity (polarity N and S (shown) by permanent magnets 34 and 36. Permanent magnet 34 and and 36 are held together by the attractive force created between them. Also, permanent magnets 34 is securely attached to the bridge 16, and the permanent magnet 36 is attached to the light emitting protector 22. It is attached to the intermediate section 28 that bridges the scientifically effective regions 30 and 32. Area 3 0 and 32 and the intermediate portion 28 are preferably manufactured as plastic parts by molding. Therefore, the permanent magnet 36 is small (and can be partially contained therein. For example, For example, regions 30 and 32 may be manufactured together, and permanent magnet 36 may be made of a material such as glue. It can be directly attached to the light protection device 22 by a device. Furthermore, the permanent magnet 34 and 36, for example, the mechanical load caused by the light protection device 22 or the corrective glasses 2. Consists of individual magnets to prevent danger.

Bridge 16 and intermediate section 28 with permanent magnets 34 and 36 simultaneously Protective equipment 22 provides support for accessories. set up as special means Kerneled stumps 42 and 44 allow self-adjustment of anchorage and ensure secure anchorage can also be arranged or formed in different ways and have special features. for example, to the upper and/or lower portions (as shown) of the bridge 16, and at least also partially surrounds or secures the intermediate portion 28.

How the permanent magnet 34 is attached to the bridge 16 in the preferred embodiment shown in FIG. is not limited to this, and the permanent magnet 34 and/or at least other The corresponding permanent magnets can be placed in different positions on the corrective glasses 2, e.g. For example, the position for the permanent magnet 34 shown in FIG. or the frame rim 4 and in the area of the bridge 16 and/or the frame rim. The junction of the liangs established between 6, for example the area of Jiji 8 and 10 or G-India 8 and 10 may be themselves. permanent magnet 36 and/or The other corresponding permanent magnet of at least the light protector 22 is at least the light protector 22. It is arranged so as to face the permanent magnet of the corrective lens 2 at a position corresponding to 22.

This corresponds to the case of yokes 5o and 51 described below.

Permanent magnets 34 and 36 have a large demagnetization rate due to their design, so permanent magnets has a high magnetization value, and with this produces a high magnetic load or attractive force on the pole surface. Magnetic poles used as permanent magnets 34 and 36 to obtain magnetic pole lengths in their manufacturing process, for example through magnetic fields and/or heat treatment. axes 38 and 4, each preferred for magnetization, such that they have magnetic anisotropy. 0 are formed and they end up having magnetic anisotropy. Permanent magnets 34 and 3 The preferred axes 38 and 40 of 6 are shown, for example, in the sectional view taken along the line A--A in FIG. or as shown in the enlarged view of permanent magnets 34 and 36 on the right side of the figure. It is preferable that they be parallel to each other.

The permanent magnets 34 and 36 are made of a magnetic material containing at least a rare earth element, or is a magnetic material containing at least rare earth elements and boron, such as at least cobal. Alloys containing iron and samarium or at least neodymium, iron and boros Alloys containing carbon are particularly suitable.

Alloys of this type have particularly favorable demagnetization curves and high coercivity and energy. even if the volumes of the permanent magnets 34 and 36 are small, the Suction power is achieved. The small-volume permanent magnets 34 and 36 are made of the above-mentioned magnetic material. In embodiments using In particular, the bridge 16 and the intermediate section 28 are made as small as possible in a simple and advantageous manner. form a model.

As the critical physical elements of the fastener, permanent magnets 34 and 36 are attached to yokes 46 and 36, respectively. and 48, the attractive force can be increased, and the volume of the permanent magnet can be economically reduced. Can be modeled. The yokes 46 and 48 are permanently attached as shown in Fig. 8a. Directing at least a portion of the flow of magnetic flux from and through the permanent magnet It is designed in a so-called pot shape. In this way, 3-ri is set up. By this, a more favorable operating point in the demagnetization curve of the permanent magnet is achieved. .

FIGS. 8A and 8C show the permanent magnet 34 with yoke 46 in the bridge 16. FIG. 3 is a cross-sectional view showing two preferred embodiments. This embodiment also allows the yaw in the intermediate section 28 The present invention also applies to the permanent magnet 36 having the magnet 48.゛In many cases, particularly high holding power When a magnetic material having energy density and energy density is used as a permanent magnet, the yoke 46 Alternatively, the yoke 48 is U-shaped, as shown in FIG. It is sufficient to surround and fix the permanent magnet 34 or 36 to In addition, a bridge 16 that is as narrow as possible is achieved.

For example, as shown in FIG. When the yoke 48 surrounds and fixes the permanent magnet 36, particularly strong attraction occurs. Power is achieved.

In many cases, especially accessories (light protection 22 in the case of Figures 7 and 8) , is relatively lightweight, with only one permanent magnet 34 or 36 attached to the yoke 46 or It is sufficient to wear a 48. In these cases, for example, Figure 7 and In the preferred embodiment shown in Figure 8, the bridge 16 has a permanent magnet 34; The intermediate section 28 has permanent magnets 36 from which the yoke emanates; Provided to guide at least a portion of the magnetic flux flow passing through, but not fixed An arrangement in which the device has only one permanent magnet is also sufficient. For example, in Figure 9 , an intermediate section 28 having a permanent magnet 36 with a yoke 48 and an associated yaw. A bridge 16 is shown having a block 50.

For all particularly lightweight accessories, such as particularly lightweight light protection 22, A simple fastener, modified according to the preferred embodiment shown in FIG. 1O, is sufficient.

Comparing this to the fastener shown in FIG. The magnet 36 is a permanent magnet consisting of parts with different polarities, and is a multipolar magnet on two sides. A preferred embodiment having stones 52 is shown in FIG. 10 by N and S. .

However, this preferred embodiment does not limit the possibility of dispersion of the magnetic poles.

A permanent magnet 54 having sections of alternating polarity arranges the bridge 16. On the other hand, the permanent magnet 53 is provided in the intermediate portion 28 (see Figure 3101).

Alternatively, a yoke 5o corresponding to the yoke 51 may be provided in the intermediate portion 28.

A variety of possible magnetic systems in fasteners for accessories on devices for the eye Depending on the aspect, the appropriate solution is for each case of accessories or devices for the eye. In particular, the ability to select magnetic materials is also included.

Accessories, such as the lightweight light protection device 22, have a relatively low weight and have a permanent magnet. 34 is provided with a yoke 46 and/or a permanent magnet 36 is provided with a yoke 46. 48, the existing Magnetic materials with lower coercive forces and energy densities compared to the materials mentioned in, e.g. Substances containing cobalt, in particular present as alloys, and in addition at least Substances containing aluminum and nickel as constituents (AINI(o) are permanent) It can be used as permanent magnet 34 or 36.

In particular, for convenience in terms of workability, rubber and/or magnetic materials, such as the above-mentioned magnetic materials, may be used. Plastics with trace amounts of body are low in cost, especially in some cases. It is advantageous in In these cases, for example, the application of special permanent magnets is required. Examples of such cases include cases where a request is made. Particularly due to manufacturing advantages, large areas, e.g. A large area of the part 28 or the entire middle part 28 is made of a composite made of cobalt and samarium. Plastics containing trace amounts of gold or trace amounts of neodymium, iron and boron It is formed from plastic containing

In addition, for the purpose of relatively good workability, a coating containing at least iron and vanadium is used. Baltic alloys, cobalt alloys containing iron and chromium, iron, nickel, or titanium Each cobalt alloy containing tanium and/or cobalt alloy containing niobium Cobalt alloys and platinum-containing cobalt alloys are suitable for certain applications.

In particular, cobalt-platinum alloys have increased high suction or retention power and energy. This material has a particularly low brittleness and therefore can be processed easily. It has the characteristic of being easy to oxidize, and is excellent for all types of corrosive media. It has high corrosion resistance. Cobalt alloy with iron-nickel added can be used to make glass Suitable for sealing applications, such as permanent magnets for eyeglass lenses; They are fixed to the ophthalmic device by permanent magnets.

The yokes 46 and 48 and the yokes 50 and 51 are preferably made of iron and are corrosion resistant. Pure iron is appropriate from the standpoint of food protection and economic suitability. Instead, some kind of additive should be included in the iron. Especially for protection against corrosion , the iron is covered with one or more protective layers and/or the iron is substantially The structure is embedded in plastic.

The selection of materials for constructing the yokes 46, 48, 50 and 51 is not limited to iron. Instead, many other materials with high magnetic permeance are possible, e.g. For example, alloys containing iron and dichloride, i.e. useful for the purpose of corrosion resistance. effective alloys are possible.

In addition, as the material constituting the yokes 46, 48, 50 and 51, for example, many Soft ferrites, such as manganese-zinc-ferrite, which provide the effect of It is. In processing (e.g. processing by compacting powdered materials) they It can be processed into a desired shape, such as the yoke shown in Figure 8C, First, it's cheap. In addition, oxidized ceramic materials also have high corrosion resistance, It is suitable as a material for yokes. Also, this is low density, i.e. low! even one layer To contribute.

The magnetic system, particularly the material and configuration of the fastener, more specifically in each preferred embodiment. The instructions given regarding the permanent magnet, yoke parts and yoke configuration are This does not mean that it does not apply to the preferred embodiments.

In FIG. 12, frame rims 4 and 6, as shown in FIG. Front view of corrective eyeglasses consisting of lenses 8 and 10 and eyeglass lenses 18 and 20 It is shown. According to the preferred structure shown in Figure 12, the replacement of the light protection device 22 is In particular, a corrective attachment 56 having lenses 58 and 60 is attached to the corrective glasses 2. This orthodontic attachment is preferably an accessory for An intermediate part 62 corresponding to the intermediate part 28, a permanent magnet corresponding to the permanent magnet 36 in FIG. A magnet (not shown), such as a bridge having a permanent magnet 36 corresponding to FIG. have. This is not intended to be limiting, and is All preferred embodiments described for fasteners are orthodontic attachments. 56 and other accessories. Therefore, the analogy For example, a versatile eyeglass system may include one or many corrective glasses 2, light protection devices 22, orthodontics. Valid specifications from the standard attachment 56 and other compatible accessories. It can be composed of

Lenses 58 and 60 are preferably made of cast or heat-pressed plastic. The lens is composed of 1-glass glass, especially when the lens has a high refractive index or a short focal length. If necessary, it is composed of other glasses, especially silicate glasses, in which case it is A regular attachment 56 (not shown) is a frame for lenses 58 and 60. has a department.

In the case of blastic glass, the correction attachment 56 is combined with the light protection device 22. Similarly, the intermediate section 62 is cast as a one-piece plastic member that includes the intermediate section 62. The second permanent magnet is also at least partially cast. To increase mechanical stability, The orthodontic attachment 56 preferably at least partially corresponds to that shown in FIG. It has reinforced edge regions 65 and/or 67, which are shown thicker in the figure.

Corresponding to areas 24 and 26 of the light protection device 22, the correction attachment 56 includes: The upper and lower protruding areas 64 and 66 of the bridge 16 (not shown in FIG. 12) are and these are used when removing or moving the orthodontic attachment 56. It contributes as a means to make it easier to grasp.

e.g. especially protection from dazzle and/or irritation, as well as visual field light; In order to increase the suppression effect of In special cases such as when (see) is formed. For example, the intermediate portion 69 is Casting during the production of the regular attachment 68 and/or warmed up from 1) under 0 conditions It can be suitably obtained by pressing.

A corrective attachment 56 or accessories such as 68, such as Figures 12 and 131! iol The corrective glasses 2 have, for example, two upper and lower regions with different refractive indexes or focal lengths. The upper region has characteristics suitable for viewing distant objects, and the lower region has characteristics suitable for viewing nearby objects. 2-strength glass (neutral focus lens) with properties suitable for viewing objects. For sharp focusing on both near and far objects, such as Multi-strength lenses are required. This has particular practical implications for many people with visual impairments. nearby objects An object is generally smaller than an object that is far away. The part corresponding to nearby is Enables sharp one-point focus on the object, and also supports distant objects. Objects further away than 1 minute The part that corresponds to the distance (the part that corresponds to the distance) has a stronger refractive index or a shorter focus than the part that corresponds to It has a point distance.

The term "glass" used in the construction of the present invention is limited (yonaku, heavy, heavy, etc.). However, not only silicate glass, but also plastic lenses, for example, can be used for this purpose. This can be understood as the meaning of i%.

FIG. 14 shows an accessory that facilitates the processing method described above. This a The accessory has an auxiliary device 74 shown on the left side in FIG.

A region 76 in this auxiliary device 74 has a compatibility force 5 with the corrective glasses 2, and a region 76 for corrective use. A magnetic and corresponding in size to the bridge 16 (X. Auxiliary device 7411 It has means for attachment to the garment, such as the bottle shown in FIG. this When the correction aid device 74 is attached to clothing, the user 1 will be able to remove the corrective tool cover. It is not necessary (in some cases, it is possible to quickly and easily hold the orthodontic tool on the auxiliary device 1f74). You can quickly and easily use the corrective tool again when you need the corrective tool. It can be removed from the watch auxiliary device in order to put on the glasses. Corrective glasses 2 Accessors IJ, such as the light protection device 54, are also removable. The auxiliary device 741 can be fixed with force (possible).

With special significance in a practical sense, clothing (means for folding clothes) 5. Means for attachment to a fixed structure such as a dash board, e.g. It can be replaced by means of deposition (not shown).

The fastening device according to the invention can be fastened in an exchangeable manner and can be used in the field of protection. FIG. 15 shows a preferred embodiment of an accessory for corrective eyeglasses 2 that is particularly effective. is illustrated, and a sectional view thereof is shown in FIG. Here, there is a light protection device 22. Alternatively, instead of the orthodontic attachment 56 or 58, a fully or partially transparent A clear protection 68 protects against debris or sparks, e.g. caused by crushing. A permanent magnet 77 is provided in the intermediate portion 78 . The protection part 78 also has an It has an added light suppression function and is particularly useful in applications such as welding or sports. The radiation protection function protects the eyes from dazzling or irritation, and protects the eyes from glare or irritation. The light suppression function protects the eyes from invisible light, especially ultraviolet rays.

The fixation device according to the present invention is used as an ophthalmic device prior to corrective glasses. In contrast to the preferred embodiments already described for those including equipment and accessories for FIG. 16 shows that so-called ski goggles 80 are used as an eye device. This figure shows a preferred embodiment of the invention. The upper part of Figure 16 is a plan view, and the lower part is a plan view. The figure is a sectional view taken along the line B-B, and the parts behind the transparent viewing window are also shown. has been done.

In Figure 16, an accessory manufactured from a single light-suppressing plastic section is shown. A light protection device 82 is depicted as a preferred embodiment. The light protection equipment 82 protects against dazzle and Protective equipment also protects the eyes from light and/or irritation, e.g. , especially to protect the eyes from ultraviolet rays. The light protection device 82 is arranged on the frame 85 It is preferably fixed inside a single or multi-layered viewing window 84. For this reason , the permanent magnets 88 and 92 in which they are at least partially arranged; The minute 87.89 is arranged in the viewing window 84, for example by adhesive layers 86 and 90. Ru. The light protection device 82 includes intermediate portions 94 and 96 integrally formed from one mold. , which faces the permanent magnets 88 and 92 and has opposite polarity to them. Permanent magnets 98 and 100 are located in intermediate portions 94 and 96.

Permanent magnets 88 and 89 or permanent magnet 92 in the preferred embodiment of FIG. The similarity of both magnet systems according to The yoke parts 50 and 51 are raised from each other and can be accessed using their respective magnet systems. Fixation to the device for the eye of the sari is performed.

Intermediate portion 94.96 and portion 87.89 preferably include fixed trees 95.102 and 87.89, respectively. and 97.104, self-adjustment, ensuring fixation of permanent magnets 98 and 100, Secure to permanent magnets 88 and 92 or portions 87, 89 between portions 94 and 96 installation, and secure installation of the lightweight light protection A82 to the viewing window 84. It is provided as a means for

The protruding areas 108 and 110 allow for quick attachment or removal of the radiation protector 82. Used as a gripping tool. Elastic bands are used for attachment to the head .

Instead of the light protection device 82, a corrective attachment (for example, a small object at a distance) can be used. orthodontic attachments for objects (not shown); Match the front arrangement or use light protection and intermediate sections (not shown). ) by simultaneously attaching an orthodontic attachment with a shape corresponding to It is also possible to provide both the light protection device 82 and the correction attachment.

In the plan view of Figure 17, a so-called diving goggle is shown as an eye device. Guru is shown. In addition, at the bottom of the same figure, a section taken along the line c-C of the figure shown at the top is shown. A top view is shown, and the portion behind the transparent viewing window 128 is also shown. . lens! Orthodontic atta nochimen as an accessory with 16 and 118 This is primarily important in a practical sense. “Make the fixing device as small as possible.” In order to reduce visibility disturbances and to increase the reliability of fixation as required, The fastening device according to the preferred embodiment shown in FIG. 17 is adapted to the ski goggles shown in FIG. As in the preferred embodiment of be done.

For this reason, in a preferred embodiment of Fig. 17, a small number of permanent The magnets 124 and 126 or the portions 121, 123 are, for example, attached to the adhesive layer 120 or and 122 are attached to the viewing window 128 installed in the frame 129. I get kicked. The orthodontic attachment 114 has intermediate portions 130 and 131. These are integrally formed by casting using plastic glass.

Permanent magnets 134 and 1 of opposite polarity to permanent magnets 124 and 126 36 are located in the intermediate portions 130 and 132. To increase mechanical stability Therefore, the orthodontic attachment 114 is preferably at least partially forced.

It has a thick region 117 (more details are shown in the upper part of FIG. 17 as a thick region). (as shown).

The intermediate part 130.132 and the parts 121, 123 are preferably made of fixed wood 137.1 38 or 139, 140, self-adjustment, fixed permanent magnets 134 and 136 of the permanent magnets 124 and 126 of the intermediate portions 130 and 132. installation, and secure attachment of the correction attachment 114 to the viewing window 128. It is provided as a means for attachment.

The protruding regions 142 and 144 secure the orthodontic attachment 114 or is used as a means to make it easier to grasp when removing. elastic band 1 46 is used to attach to the head, and the rubber inlay is used for water sealing. .

As in the case of ski goggles 80, other fastening devices may also be used, e.g. In the case of multi-strength glass (multi-strength lenses) that requires Corrective arrangements are possible to provide an area close to the area.

Especially for people with farsightedness, as it is only needed to see near areas. , the corrective arrangement is located in the lower area of vision, especially for people with nearsightedness For example, only pressure arrangements for distant areas are required. and is fixed to the viewing window 128 so as to be located in the upper field of view.

Separately from ski goggles 80 or diving goggles 112 in the same manner. , work protection goggles 113 having a similar structure are provided as an accessory. this The protective work goggles are designated by the reference numeral 113 in FIG. - goggles are designated by the reference numeral 80.

It has a light protection device 22.28 or a correction attachment 56.4B, 114. , and each has an element that gives an optical effect to the light rays incident on both eyes. The preferred embodiments described above are not limiting. The key to providing these optical effects is elements, such as lenses 58 and 60 or 70 and 72, and Qualitatively separated lenses can be used, for example, on the back of the protective glass of welding goggles (not shown). Later, it is fixed as a corrective lens together with the fixing device according to the present invention.

Fixing of accessories with permanent magnets according to the present invention shown in FIGS. 6 to 17 above The scope of the present invention is not limited to these preferred embodiments.

An ophthalmic device may, for example, have a spectacle frame without lenses.

In a very advantageous manner, the lens 18.20 can also be light suppressed, e.g. by adjustment. The corrective eyeglasses 2 also function as eyeglasses with a light protection function. There are cases where

In a highly beneficial manner for the user, the light protection glasses can be used without any corrective effect. By forming these lenses, it is possible to replace the corrective glasses 2, and the light suppression effect can be improved. By increasing the height, the user's eyes can be protected from light. and mechanical Reliable protection of the eyes from the effects is provided by spectacle frames and lenses.

The accessories described in the preferred embodiments of Figures 6 to 17 are highly effective. It can be applied to users in different ways. For example, for fixing the light protection device 22 to the light protection glasses. In this case, light suppression or radiation protection is enhanced. At the same time/or with it Apart from that, the color of the field of view can be changed. For example, the light protector 22 is yellow. Then, the blue color changes to green. A lens for light protection goggles containing a permanent magnet according to the present invention. The light attenuation effect is reduced from the top to the bottom of the lens, and the lens of the light protection device 22 is By increasing the light attenuation effect from the top to the bottom, it becomes relatively strong in the fixed state. Providing a strong light suppression effect has particular practical advantages.

As an accessory with a permanent magnet according to the invention, an orthodontic accessory for distant areas Touchments are extremely useful, especially for people with nearsightedness, as their (negative) refractive index improves vision. e.g. with a permanent magnet according to the invention, so as to act on the upper region of the field. Fixed to safety glasses.

The light protection device 22 is suitable as a dazzling protection device for a car driver by a known method. will be installed on the

Furthermore, with the permanent magnet according to the invention, the accessory can e.g. For ophthalmic devices, such as containers that temporarily contain scented materials, substantially enter the eye. It is mounted so that it is placed outside the optical path of the light beam. Also, accessories and Jewelry and/or jewelry, acoustic protection inserted into the ear, and hearing aids. ear mounts, cable holders, lighting and appliances, and/or hearing aids for Electroacoustic devices such as sensory aids, radios and/or receivers, measuring devices (e.g. (for example, for radiation) and earphones, etc., and the sticking of accessories can be caused by glasses The temple area is preferred.

0 0.1 0,4 0,6 0,8 1,0L74 116 11B international search report international search report DE 9000098 S^　34230

Claims (9)

[Claims] 1. A fastener that secures the accessory to the ophthalmic device with at least one permanent magnet. In kimono, At least one permanent magnet (034, 036; 34, 36; 52; 53, 547 7; 88, 92, 98, 100; 124, 126, 134, 136) are at least The solid material also contains a rare earth element and/or cobalt. Kimono. 2. The one or more permanent magnets according to claim 1 have magnetic anisotropy, The preferred axes (38, 40) of the individual said anisotropic permanent magnets are substantially reciprocal. 2. The fastener according to claim 1, wherein the fasteners are parallel to each other. 3. The at least one permanent magnet according to claim 1 is a yoke (046, 048; 46, 48) The fixation according to any one of claims 1 to 2, characterized in that Ingredients. 4. The total length of the permanent magnet according to any one of claims 1 to 3 (L=L1+ The relationship (L/D) between L2) and original size (D) is within the range of 1 to 3. The fixing tool according to any one of claims 1 to 3. 5. The permanent magnet in a fixed state (034, 036; 34, 36: 53, 54; 77; 88, 92, 98, 100; 124, 126, 134, 136) The distance (h) is approximately 1/6 or less of their total length (L = L1 + L2). The fixing device according to any one of claims 1 to 4. 6. When the accessory is affixed to the ophthalmic device, the permanent magnet 6. The method according to claim 1, wherein the method is removably fixed to the yoke. Fixtures listed in any of the above. 7. At least one or a few permanent magnets according to any one of claims 1 to 5 above. At least one yoke section (50; 51) is connected to the bridge region (016; 017; 16 ) and/or intermediate part (28; 62; 69; 79; 94; 96; 130, 13 2) The fixing device according to any one of claims 1 to 6, characterized in that it is attached to Ingredients. 8. Apparatus for at least one eye according to claim 1 and to claim 1 The at least one accessory according to the and self-adjusting the attachment of one accessory to the at least one ophthalmic device. Means for adjustment (42, 44; 95, 97, 102, 104; 137, 138, 139, 140) according to any one of claims 1 to 7. Fasteners. 9. The ophthalmic devices include glasses frames without glasses, a corrective sleep mirror (2), Light protection glasses, sleep mirror for both correction and light protection, safety glasses for heavy use (113), ski - Constructed as goggles (80) or diving goggles (112) , said accessory includes at least one light protector (22) and/or at least one light protector (22). at least one protective attachment (56; 68; 114) and/or at least one protective attachment (56; 68; 114) a protection part (78) and/or a retention means for at least one accessory; at least one auxiliary device (74) as and/or for the driver of the vehicle at least one dazzle protector and/or for temporarily retaining volatiles. container and/or at least one piece of jewelry and/or trinket and/or or at least one hearing protector and/or hearing ear mount and and/or at least one lighting and/or at least one electrical appliance and and/or at least one earphone. 8. The fixing device according to any one of 8.