DE1912131U - FOOTPADS. - Google Patents

Description

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PATENT LAWYERS

dr. W. Schalk dipl.-ing. Peter Wirth

DIPL.-ING. G. E. M.DANNENBERG DR. V. SCH M I E D-KOWARZI K

6 FRANKFURT AM MAIN

CR. ESCHENHEIMER STR. 39 POSTAL CHECK ACCOUNT: 15628 FR A N K FU RT / M A I N

-US Serial No. 312 517-

Dr. William M. Scholl 211-213 W. Student Street Chi c a g ο, III / U. S. A.

Foot correction aid Tdzw. Butt pads.

Numerous foot correction aids or puss pads are known. They are intended to be used, for example, on depressed arches of the feet, calluses, corns, balls, hammer toes and similar puss ailments. These devices or cushions consist of at least one layer of upholstery and usually also of cover layers. Sometimes two or more layers of upholstery are also present. If the layers are made of thermoplastic material, they are usually held together at the edge by a joint heat-fusion seam. These known devices and upholstery show in some cases very good properties, but they are all made of a material that is too elastic and the padding layers do not retain the contour of the surface with which they are in contact suffering acts.

The present firing is intended to "eliminate these disadvantages."

The new aids or upholstery now consist of a plastic foam whose recovery factor (measured 2 hours after the pressure has ceased) is less than $ 70, preferably less than 60 fo . Foams made from 70-100% closed cells are preferred. The foam is expediently provided with a continuous skin on both sides. A corresponding polyvinyl chloride foam is particularly suitable. In general, thermoplastic foams are avoided.

The innovation is explained in more detail by the accompanying drawings, which show:

Pig. 1 is a perspective view of a new pad on a pussj

iig. 2 is a perspective view of a further embodiment sfοrm of the new upholstery;

3 is a perspective view of a third embodiment sf ο rm of the pad

Pig. 4 shows a fourth embodiment of the pad | Pig. Figure 5 is a cross-section through the pad of the Pig. 1 seen along the line Y-Y in the direction of the arrows ;

Pig. 6 shows an enlarged cross-section through the pad of the Pig. 3 along the line VI-YI;

Pig. 7 shows an enlarged cross-section along FIG Line VII-VII in Fig. 4?

Fig. 8 is an enhanced cross-section along the line VIII-VIII in Fig. 2j

9 shows a schematic illustration of the effect of the new cushioning material; and

10 shows a cross-section through a further embodiment of the new padding, which, however, applies to other Way on the body "is attached.

The new pad can, depending on the area to be treated, can be produced in different sizes and shapes. For "better explanation, some cushions are shown in the drawings, all of which are used to relieve discomfort." on different parts of the foot "are intended. Each of these pads can easily be attached directly to the area to be treated,

The first embodiment shown in FIGS of the pad is used to lift the longitudinal arch that has been trodden through one foot. This pad consists of an elastic band 1, the inside with a preformed pad 2 is made of thermoplastic foam, which is placed under the longitudinal arch of the foot. As As can be seen from Fig. 1, the elastic band 1 comprises the correct attachment of the correction aid Foot 3 at the level of the instep

and the pad 2 is pressed against the inner longitudinal arch of the hiss. In this way the longitudinal bend be supported even when the patient is walking barefoot.

FIGS. 2 and 8 show a pad for a hallux sebum, a bale or the like. This corrective measure exists of two superimposed layers 4 and 5 made of thermoplastic Foam, which by a heat fusion seam 6, the gate is preferably very thin, around the outer edge of the makeshift are interconnected. These layers are provided with an opening 7, which also limited by a thin heat fusion seam 8 will. As can be clearly seen from Fig. 8, a toe loop 9 on the front part of the device between the two Layers are pushed into this toe loop of known woven elastic tape, thermoplastic film, or some other suitable material. The correction aid is attached to the foot by the toe loop 9, as shown in FIG. 2, over the big toe 10 is pushed; the padding then lies along the inside of the foot, and the opening 7 takes up and guides the enlarged metatarsal joint the pressure exerted by a shoe on the surrounding healthy tissue. While wearing, the pad becomes held in place by the sock pulled over it.

Another Ausführungsiοrm is shown in Figs. 3 and 6, and this cushion rests under the standing surface of the foot at the level of the metatatar sal "s. This cushion serves to relieve the following complaints: cornea under the me tatar sal Io ο gen, pain caused by a penetrated one Metatarsal problems, complaints from over- or sesamoid bones, burning of the soles of the feet from high-heeled shoes; it also resembles the stooping of the Tissue under the metatarsal heads, which "in elderly Occurs frequently to people. This correction aid "consists of two layers 11 and 12, one on top of the other thermoplastic foam, which preferably have an oval shape "and by one, the outer edge of the upholstery part circumscribing thin warmer fusion seam 13 with one another are connected. A toe loop 14, which is preferably consists of an elastic material, is fastened in a suitable manner to the upholstery part, e.g. by doing you push the loop between the two layers of a neck piece 15 on the upholstery and with the help of Heat fusion seam 13 firmly connects to the upholstery part. This correction remedy is based on that shown in FIG Attached to the foot by sliding the toe loop over the second toe 16 so that the cushioned part rests under the metatarsal arch. The toe loop is preferably set off from the upholstery part, and the

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Correction bellelf is made for the right or left I ¹ USS, so that a better fit is guaranteed.

Figures 4 and 7 show a pad used to ease the tone of a hammer toe caused discomfort. This cushion is made up of two, through a fine warmth-te rs fused seam 19 interconnected foam layers 17 and 18. They have an opening 20 which also outlined by a thin Y-heat fusion seam 21 will. This pad can also be provided with a toe loop 22 in the manner already described above preferably provided with elastic material. Pig. clearly shows that this pad is attached to the foot by sliding the toe loop 22 over the Hanur toe 23 in this way that the corn generally appearing on such a toe is received by the opening 20. The cushion part behind this opening is longer than in front of the opening in order to divert the pressure from the corn and gently forcing the toe straight.

Fig. 10 shows an embodiment that is used for upholstery of corns or calluses and is attached to the foot with an adhesive tape. This cushion can be immediate be applied to a cover layer 24, which is only used as a protective layer for an adhesive strip

serves and "peeled off and thrown away when the cushion is used will. On top of this protective layer is a thermoplastic film 25 made of, for example, vinyl acetate, which is placed on the Underside 26 provided with a pressure-sensitive adhesive is. A foam layer lies over this film 25 27 and optionally a cover layer 28 made of heat-fusible material Material. The layers 25, 27 and 28 are joined by a thin heat fusing seam that forms the outer edges of the pad outlines, connected to each other. In most of them babble the lower film 25 and the cushion layer 27 are provided with an opening 30, while the optionally applied Cover layer 28 preferably over this opening is enough to protect the clothing from secretions from the area to be treated or to protect ointments and medicines. When the pad is in use, the protective layer 24 is simply removed from the adhesive layer 26 is peeled off and the cushion is then glued on so that the area to be treated is taken up by the opening 30 will.

All of the above-described embodiments of the invention Cushions can easily be made from superimposed layers of material in a suitable electronic heat fusing press can be produced which has the shape of the desired pad. The electrode shape will pressed under pressure on the material layers, and through An instant high-frequency surge of electricity will hit the layers in a thin heat fusion seam

merged. At the same time this forms a heat fusion seam a tear seam at which the AIofall slightly different from the finished one Product can be separated.

The foam material used in all embodiments is preferably a vinyl, isocyanate, polyester, Polyurethane foam or the like. These are cellular Foams that can be porous, non-porous, air-permeable or impermeable and of various densities as well as other different physical properties may have, depending on the type of materials used and the control exercised during foaming. In In most cases, these foams have a high rebound factor and are practically instantaneous after removal of the pressure their original shape again on. Such strongly resilient foams yield slightly under pressure, but do not fit the contours the surface with which they are in contact under pressure. Appropriately for the inventive Upholstery uses foams that only very slowly return to their original state when the pressure is removed Taking form.

A foam that has been found to be particularly suitable in tests and when worn is, for example, a complete one cured homopolymer! sat polyvinyl chloride foam

closed cell material, which is shown schematically in FIG. This foam 31 he consists of a cell skeleton 32 which forms closed cells 33 ". It is provided on" both sides with a skin 34 or 35 which improves its strength and at the same time its low relaxation factor "because it practically excludes air. The foam preferably consists of 70 to 100 fo of closed cells and is therefore practically non-porous and air-impermeable. The density of the foam is expediently "about 0.16 g / cc".

Although these foams, like from Pig. 5 can be produced in practically any desired thickness, if several layers are used, a thickness of 3 mm for each layer is quite sufficient. A foam of this thickness was used in a series of tests in which it was subjected to 22 hours at 70 °, by which it was compressed to about 50% of its original thickness. After these 22 hours, the pressure was removed and the material allowed to stand at 70 for 2 hours and then brought to room temperature before measuring the recovery factor. The average of this series of tests was about 42% compression and 58% recovery within 2 hours. At room or body temperature, the recovery factor is even lower.

Due to being on both sides of the foam The foam does not need to be covered with a top layer to form the skin, as it is even more careless Handling is smooth enough to put on stockings and fits comfortably and smoothly on the foot.

If one of the cushions according to the invention is worn on the foot, the thermoplastic foam part of the cushion fits practically immediately under pressure the contours of the parts of the foot with which it comes into contact. That rests Foam material, for example, over a protruding bone, as can be seen from FIG. 9, one forms immediately Recess 36 in the foam that is not simply a Hollow is, but exactly the contours of the protruding Corresponds to bone. The foam adapts to the body so precisely that even the lines of the skin are visible. Although it is pressed against the foot under pressure, it never loses its cushioning properties. For example, in 9 shows the foam on the left-hand side in normal thickness; under pressure, however, its thickness increases, as shown on the right, with sufficient amounts of foam between the pressure points in order to have a good cushioning effect.

Due to the low recovery factor of the foam the cushion can easily be used when sleeping, bathing or the like

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be removed from the foot, a certain amount of spring back occurs although one, but the original thickness only becomes very much reached again for a long time. The upholstery gets regular worn, a complete recovery within one night cannot be expected. The inventive Cushion therefore offers a clear advantage over the cushions previously known for similar purposes. When reattaching of the cushion, the wearer does not need to run in a new cushion every time, so to speak. The upholstery corresponds the place on the foot where it was previously worn and is immediately comfortable. It is therefore very easy to put the pad on exactly where it was already worn and when you put it on again there is no discomfort as the foot moves does not have to get used to the upholstery again.

The present invention therefore offers an economical, Durable and very effective butt pad or correction pad for butt damage. The pad is self-deforming and adapts almost immediately to the surface of the puss with which it is in contact; the one once accepted by the upholstery Porm is retained for a long time even after the pressure is removed, and the cushioning effect also lets through the deformation of the cushion when worn.

Claims (6)

Protection claims 1. Foot correctionToehelf "or üPusspolster," consisting of a preferably multi-layered pad, which is adapted to the "area to be treated," which is made of a plastic foam material "and is preferably attached to the foot by a loop," characterized in that it is made of foam with a recovery factor (measured 2 hours after the pressure was released) "less than $ 70, preferably less than 60 fo ". ■■. £ ■ 2. Aid according to claim 1, characterized in that the foam consists of 70-100% closed cells, 3. Provision according to claim 1 and 2, characterized in that the foam is closed on "both sides by a continuous skin. 4. Provision according to claim 1 "to 3, characterized in that that the foam is thermoplastic. 5. Provision according to claim 1 to 4, characterized in that that the foam is made of polyvinyl chloride ". 6. Provision according to claim 1 "to 5, characterized in that it is delimited by a heat fusion seam" at the edge. The patent attorney: