DE7532439U - PAD DEVICE - Google Patents

Description

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PATENT Attorney DIPL.- ING. ULRICH KINKELIN

7032 Sindelfingen - Auf dem Goldberg- Weimarer Str. 32/34 - Telephone 07031/86501

Telex 7265509 rose d

June 29th

Company Marwitz & Hauser, 7000 Stuttgart, Dornhai denstr. 5

PAD DEVICE

The invention relates to a pad made of plastic for resting on the

Area of the bridge of the nose of those who wear glasses. '

A major problem with eyeglasses is making them satisfactory in all respects

on the bridge of the nose or the bridge of the nose or nasal saddle. This

The task can be difficult because the supporting surface of the pad is made of tech-;

niche or fashionable reasons must remain small and / or the glasses from glasses |

must be worn all day long and / or the glasses are heavy because |

the diopter is high and / or the person wearing glasses has a difficult nose shape I

(e.g. flat Asian nasal bridge) and / or the wearer of glasses to perspire |

tends and / or the glasses wearer works in a damp environment and / or the glasses

wearer has sensitive skin and / or the wearer of glasses between skin and | The nasal bone does not have enough fatty tissue and / or the pads often slip on the skin, what can happen e.g. under the influence and pressure of the wind and / or;

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the pad that used to fit the shape, but the glasses wearer meanwhile has also become thicker or thinner in the nasal area.

Most people have glasses, often several, be it sunglasses or correction letters. The proportion of ametropia is estimated at 20%. One Glasses are worn by people with ametropia from getting up to going to bed, during all seasons and all activities. The glasses win their main one Hold by their seat on the nose, while opposite the seat of the ear hook does not matter so much. The fit of the glasses on the nose has always caused difficulties. This comes from several factors: for one, the glasses with a high number of diopters and large disks, a great weight. On the other hand, it works this weight multiplied by the wedge factor on the nose flanks. The steeper the Angle, the higher the multiplication factor. After all, it's near The skin area of the bridge of the nose near the eyes is particularly delicate.

The principles developed from holding technology for Zwicker could not even be applied Proxis-capable of transferring it to the metal goggles, let alone the plastic goggles. In order to reduce the weight, synthetic glass glasses have been developed. Because artificial glass has a smaller refractive index than sylicar glass, the synthetic glass glasses have to be thicker than the sylicate glass glasses, and in the end you still gain little weight saving. In addition, the synthetic glass glasses are sensitive to scratches and have to be used more often can be changed, and after all, they are much more expensive than the sylicate glass glasses.

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11 550

In practice, you always have the pads made of a comparatively hard material, such as

ζ. B. Cellulose acetate made, and these pads are then bent under heat and thus adapted to the nose of the wearer. Also by bending the pad lever to set the pads. Joints have also been provided at the ends of the pad levers, which have the character of a universal joint in certain angular ranges. In spite of for many people wearing glasses remained an awkward affair, be it that the glasses on the bridge of the nose often radiate pain into the forebrain has caused or has caused considerable aesthetically unsightly impressions. The pad lever setting was no longer correct after a certain time because from a certain angle the force is undamped by any blow on the glasses has been passed on to the pad lever.

It depends on the correct position of the pads and the permanent maintenance of this position but also the physically / optically correct adjustment of the glasses, because the eye axis must be aligned with the disk axis.

As the only practical solution to alleviate pain and unsightly prints and to improve the adhesion of the glasses to the nose have so far only been the foam adhesive known under the name PAIN-EX. These are in larger quantities stuck on silicone paper with a self-adhesive back, as left and right foam pads. This solution was used although one had to accept numerous disadvantages: one always had to carry a larger supply of foam pads with you because the foam

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Π 550

Has absorbed sweat and the like and turned brown. With the appropriate For work you had to change the foam upholstery every day. VoC had to stick the corresponding parts of the brewing frame are free of grease, otherwise the Foam pads did not hold up. The optician needed a greater number of varieties keep ready, z. B. 2.3 mm in 1 mm steps staggered up to 3 mm. The foam but is also a nest for unwanted skin bacteria, and when the foam is has sucked wet while sweating, and a pressure is applied to the glasses, then flows a drop of liquid out of the pads. The window sealing foam-like Material is aesthetically impossible in itself, which is why many people prefer the pain

Ii bear than to resort to this help. When the foam is compressed,

Si then it loses its softness and the hard material behind it

"- halfway through.

f In the intellectual property law literature there are numerous attempted solutions that are not practical

are:

According to GB-PS 1 270 406, the should be caused by the poor support means Skin irritation, pain, skin changes and cancer can be avoided by covering the bridge area of the frame with foam, foam rubber or the like is lined and above all the end of the ear hook extends to the back of the head and these exert a clamping effect there, so that a double-armed Lever is created, the fulcrum of which is formed by the ear.

According to US Pat. No. 3,701,592, a similar technique is used to cut the bridge of the nose

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Impression made, as is customary for palatal impressions by the dentist. A bridge is cast according to this impression and this bridge is then held in place by means of Negative pressure on the nose.

US Pat. No. 2,147,802 taught a sandwich construction as early as the 1930s to be provided, consisting of a metallic back plate, a hard layer of rubber and a rubber layer that is relatively soft for this purpose, in which case the outside of the relatively soft rubber layer has a large number of unevenness. However, unevenness always means an increase in the specific pressure at certain points, opportunities for dirt and bacteria to nest and more expensive forms of production. Rubber can never be produced with approximately crystal-clear properties, it rubs off on the skin and has undesirable chemical secondary products, whereby it should be noted that the sweat of some people even dissolves gold. Through the Complete backing with a metal plate can be used, especially in the thin edge areas such a pad is not shown and becomes progressively harder towards the outside.

GB-PS 436 510 from the 1930s also gives attempted solutions of pads with a roughened surface and filled with air, mercury, non-hardening Plastic material or the like.

Attempts at solving this annoying problem have recently gone to double-sided adhesive tape to use, which sticks on the one hand to the glasses and on the other hand to the nose.

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Even in subsequent publications, such as B. at DE.GMS 76 37 286 was the Solution even for the saddle bars, which enable better solutions in terms of carrying still sought after in cellulose acetate as a material, as well as in a shape in which the web connection is thin and the lateral "ads" in oblique teardrop shape leak.

The inventor has set himself the task of specifying a pad through which one coping with the above difficulties cumulatively, which is cheap for mass production, which imposes just as few aesthetic restrictions on the designer as it does this has been the case since then, as has their relation to dirt pick-up and dirt channels problem-free like the previous pads and which can be used as standard with all types of glasses and also continuously, d. H. with the one from the customer You no longer need to take your own measures later, such as sticking foam on the inside of known pads.

According to the invention this object is achieved in that the pad homogeneously from one Material is that it has a closed, essentially smooth surface, im Is age-resistant and skin-friendly with regard to the use of glasses, is abrasion-resistant when worn, durable with the material used for eyeglass frames can be connected, can be produced essentially as clear as glass, with a glossy surface can be produced, has a Shore D hardness of 10-30 measured according to DIN 53 505 and can be injection molded. This hardness must not match the Mohs hardness, Brinell hardness, Vickers hardness or Rockwell hardness.

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Π 550

Such a pad can, for example, be made of a material from Hüls, which is sold under the trade name VESTOLID and has the specification "Wei.ch-P Granulat SSp 56". When measured according to DIN 53 505, this has a Shore D

Hardness from 15-17. The acetate used since then has a hardness in this measurement from 72-75.

7532439 21.1178

Claims (12)

PATENT ADVERTISER DIPL.- ING, ULRICH KINKELIN Sindelfingen -On the Goldberg-Weimarer Str. 32/34 -Telephone 07031/86501 Telex 7265509 rose o ¹ June 29, 1978 11 550 Protection claims: . Pad made of plastic for placing on the area of the root of the nose of spectacle wearers wearing glasses, characterized in that that it is homogeneous from a material which has a closed, substantially smooth surface, with a view to the use of Glasses are age-resistant and skin-friendly, are abrasion-resistant when worn, can be permanently connected to the material used for spectacle frames, can be produced essentially as clear as glass, can be produced with a glossy surface, has a Shore D hardness of 10-30 measured according to DIN 53 505 and is injection moldable. 2. Pad according to claim 1, characterized in that the hardness is 10-20 amounts to. 3. Pad according to claim 2, characterized in that the hardness is 16-15% is. 4. Pad according to claim 1, characterized in that it holes the receptacle for fastening pins provided on the spectacle frame. · T ■ · «it · ψ * f "
■ ι 11 550 2 5. Pad according to claim 1, characterized in that it is the Aufrasf-en on the spectacle frame enabling shape, in particular grooves has, the frame edges can be snapped into place. 6. Pad according to claim 1, characterized in that it is a known per se Has shape. 7. Pad according to claim 1, characterized in that it is firmly bonded to its base is connected to the edge of the eye of the glasses frame. 8. Pad according to claim 1, characterized in that in use The hardness of silicone rubber is 7-11 Shore. 9. Pad according to claim 6, characterized in that it has the shape of a SatteIstegs has. 10. Pad according to claim 6, characterized in that it is kidney-shaped. 11th Pad according to Claim 1, characterized in that it is made of soft PVC. 12. Pad according to claim 1, characterized in that it is made of VESTOLID-ischem KAmaterial is. 7532439 211178