EP2589311A1 - Method and device for producing and adjusting customised orthopaedic shoe inserts - Google Patents

Abstract

The shoe insert strip (1) has a three-dimensional data model of a sole of foot for forming plastic material shaped upper side (3) of the strip, where the data model is partially formed as negative footrest of an orthopedically adjusted footrest (4). The shaping upper side of the strip is machined from pressure -resistant plastic rigid foam. The plastic rigid foam is an extruded polystyrene rigid foam. Independent claims are included for the following: (1) an orthopedic shoe insert-adjusting device with a shoe insert blank; (2) a manufacturing method for a shoe insert-strip; and (3) an adjusting method for a shoe insert blank.

Description

The invention relates to a shoe insert strips for the manufacture and / or adaptation of individual, custom-made, orthopedic shoe inserts made of plastic material, in particular of foam plastic material and / or thermoplastically deformable plastic material. In particular, the invention relates to the production of a last for the production and / or adaptation of an individualized, orthopedically adapted insole. The invention further relates to a method for producing such a mold for a mold individually adapted to orthopedic conditions of a person, preferably a RIM mold, or for an adjusting device, in which the strips for the production and / or adaptation of individual, custom-made, orthopedically adapted shoe inserts Application finds. Furthermore, the invention relates to a method for adapting foamed plastic shoe insert blanks to an individual foot shape, the sole of the foot of the user specifying the footbed of the shoe insert for the orthopedic embodiment.

For the purposes of the invention, individualized or customized means the personalized production or adaptation of a shoe insert to a sole of a person. Orthopedic means within the meaning of the invention not only the correction of a foot deformity, but also the support of a healthy normal-shaped foot. Orthopedically adapted in the sense of the invention, the precise orthopedic specifications and peculiarities of the foot shape, in particular the three-dimensional sole shape and the pressure distribution on the sole of the wearer of the shoe insert. In this case, custom-made or customized also includes the field of use of the shoe insert, ie the special production of the shoe insert for the shoe in which the shoe insert is to be inserted. In this regard, the invention includes all types of shoes, in particular street shoes, sports shoes, work shoes, ski boots, boots, in particular mountain boots, casual shoes, or sandals, such as flip flops. However, the aforementioned list of shoes is not exhaustive and can be applied to all footwear items. In the case of flip-flops, it goes without saying that the sole of the foot adapted footbed on the flip-flop sole itself is formed, which the term Shoe insert according to the invention in this case is extended to "outsoles". In other cases, the term "orthopedic shoe insert" may also be extended to insoles which are placed in a shoe between the outsole or insole and the sole of the wearer of the shoe.

Generally, it can be said that the invention relates to all soles or shoes in or on which an orthopedic footbed can be produced. The present invention relates to the production of an individualized footbed, which can be manufactured and / or adjusted according to orthopedic and / or anatomical specifications. In the context of the invention, shoe insoles, which are not yet completely customized, are also referred to as shoe insoles. However, shoe insert blanks can also be universal shoe inserts that are individually orthopedically adaptable by the invention. Also in some aspects orthopedic shoe inserts are considered in the context of the invention as shoe insole blanks, since they still experience an individual adjustment.

The prior art already discloses methods for tailor-made individual production of shoe inserts which directly produce the custom-made shoe inserts, for example from a milling block. For this purpose, usually a plate material made of plastic, such as polyurethane foam plastic or EVA foam plastic or other plastic full material with more or less elastic properties is used as the starting material. In this starting material, i. In this milling block, a negative form of an orthopedically adapted, individualized footbed is incorporated on an upper side. Upon completion of this footbed, the shoe insert is contoured, i. their contour adapted to a Schuhinnenform. In the next step, the underside of the shoe insert is adjusted to the shoe into which the shoe insert is to be inserted. After going through these steps is the end user, so the shoe owner, a single shoe insert available, which is adapted to his individual needs. Each additional shoe insert is to be produced by re-milling from a milling block.

Out DE 10 2009 018 506 A1 Such a largely automated individual customization or a best-fit selection process for deposits is described, which adapt to the individual anatomy of the foot and are created by means of a numerical milling of a prefabricated block. With this manufacturing method it is achieved that the inserts are adapted individually both to the sole of the foot of the customer and to the footwear of the customer. However, a sole produced in this way can only rarely insert into other shoes, since it is also adapted to a footwear. Does the customer need one? Another pair of shoe inserts, they must be made by milling from a milling block again.

A disadvantage of this method is the long process time, which is necessary to work out from the milling block orthopedically adapted footbed, which often in addition to a long milling time and a high mechanical complexity is necessary. For example, PU foam can not be cut easily, but must be specially treated so that material removal by milling is even possible. Due to its elastic properties, for example, PU material preferably deviates from the cutting edges of the milling cutter, which quickly leads to inaccuracies in the milling of PU. In some cases, therefore, it is attempted to cool down the PU material, for example with the aid of liquid nitrogen, so that an abrasive, i. Material-removing machining of the PU foam is possible. Similar problems also occur in the processing of EVA materials, since the thermoplastic EVA quickly reaches its melting temperature during material removal and therefore very slow cutting and feed speeds must be set for a defined material removal by milling. The individualized production by direct milling of a shoe insert is therefore complex and time-consuming and therefore very cost-intensive.

Another possibility is known from the prior art to produce individualized, orthopedically adapted shoe inserts without the shoe inserts having to be milled out directly from a solid material. In this case, so-called strips are preferably used, which are for the shaping of at least the top, on which the footbed is to be generated, are provided. Such strips are usually made in the prior art of wood, aluminum or hard plastic materials such as polyethylene, ABS or the like. The strips of solid material required for the subsequent production of shoe inserts are hereby milled, and here one also speaks of turning such strips. The production of such strips of a solid material, such as wood, requires a lot of time because the solid materials are more or less workable. After such a last made of solid material, this can be used for the impression of shoe inserts. However, individualized shoe inserts that are produced with such a costly produced strips, of course, also very expensive. Therefore, an individualized customization and / or individualized orthopedic adaptation of a last made of solid material is carried out only in a few cases.

DE 1 858 572 U describes a plastic strip for the production of orthopedic shoes, which includes a shoe sole production. Here, the plastic strips of a Polyester resin poured after previously a plaster cast mold of the foot was created. Thus, an individual, but not orthopedic unadjusted strips can be poured. This process takes many hours, if not days, and is therefore also very costly.

Another method for producing individualized insoles is to mill individualized orthopedic customized strips from a block / cuboid. This shows, for example DE 103 12 129 A1 , where for the strips, the conventional materials can be selected, ie wood, aluminum or a plastic material, such as in DE 103 46 531 A1 is proposed. DE 103 46 531 A1 further proposes to create mold elements for the adaptation of a foot support device (shoe insert), which are individually adapted to a sole of the foot, wherein the form elements can be assembled like a mosaic or a puzzle to a last for the production of a shoe insert.

In JP 2007 267 996 A It is proposed to create the last for a shoe insert by means of a printer, which can process three-dimensional information. Here, the resulting 3D model, which is not readily usable as strips, at least aftertreated, so that the printed 3D model is not destroyed when forming the shoe insert. In addition, 3D modeling using a printer is very time consuming because the printer must build the 3D model in layers. Usually, the layers do not exceed a tenth or a few tenths of a millimeter thickness. Apart from the long process time until such a model is made via a 3D printer, the material used for the 3D printer is very expensive. In addition, the model produced by a 3D printer has relatively low strength compared to polymerized or crosslinked plastics due to the fusion of polymer powder particles.

The above-described conventional manufacturing process for custom-made orthopedic shoe inserts all lead to shoe inserts, which are usually too expensive for the end user, if the purchase of such deposits is not covered by the health insurance. They are therefore not interesting or unattainable for the average consumer, who does not necessarily seek correction of the foot shape. The high cost, which cause the above-mentioned manufacturing methods for custom-made, custom-made, individually orthopedic shoe inserts, are not always fully covered by the statutory health care, resulting in high costs for the consumer, if he still has to use such shoe inserts or would like to. The object of the invention is therefore to provide a method and a device for individualized production and / or customized fitting of shoe inserts, which are provided in a simple and cost-effective manner individually, orthopedically adapted, custom shoe insoles that are easily reproducible, ie reproducible. It is therefore the object of the invention to be able to provide the average consumer with one or more pairs of individually custom-made, orthopedically adapted shoe inserts at low cost. The object of the invention is also to provide, for example, a shoe orthopedic technician or an orthopedist, strips for the individual, tailor-made orthopedic shoe insert manufacturing and / or shoe insert adaptation available, which strips can be produced in a short time and inexpensively with low material costs. The strips which can be made available to the shoe orthopedic technicians and / or orthopedists should be able to be adapted by these persons in a simple manner to new, possibly changed conditions, such as, for example, a foot change or the change of the footwear. The object of the invention is further to provide the shoe orthopedic specialist or the orthopedist a cost-effective strips available, with which he can already customize prefabricated shoe insert blanks to the individual soles of his client / patient. In this case, the strips according to the invention in its manufacture and handling should be so advantageous simple and inexpensive that any necessary new creation caused by a change in the patient's foot, no high costs.

The object is achieved according to the invention, starting from the prior art, as in DE 103 12 129 A1 is solved by shoe insert strips according to claim 1, wherein advantageous embodiments of the shoe inserts strips are given in the dependent subclaims. The object is further achieved by a shoe insert mold according to claim 7 and a shoe insert adjustment device according to claim 9. The respective subclaims further form the devices. The object is further achieved by a manufacturing method of a shoe insert last according to claim 12. Claim 13 solves the problem by a suitable fitting method of Schuhinlagerohlingen, the dependent claims further develop the fitting process. The object is further achieved by a manufacturing method for a foam plastic shoe insert, which is specified in claim 16.

According to the invention, a shoe-insole strip is used for the production of individual, custom-made, orthopedically adapted insoles, which is simple and inexpensive to manufacture. The simple and cost-effective production custom-made, the wearer of the shoe insert individually, orthopedically adapted shoe insert strips is produced according to the invention by milling a pressure-resistant plastic foam. In this case, the shaping top, which forms the orthopedic footbed mold on the shoe insert, introduced by numerically controlled milling in the plastic foam. The milling program to be generated for the numerical control is hereby generated by a three-dimensional data model that represents the sole of the patient or later wearer of the shoe insole, possibly orthopedically adapted.

The three-dimensional data of the foot of the customer, for whom the shoe insert is intended, are thereby preferably recorded or determined by a 3D scanner. The person is preferably positioned standing on a 3D scanner, at the same time a pressure zone image of the sole of the foot can be recorded. This can be achieved that not only the foot shape is taken three-dimensional, but also a pressure zone image of the sole of the foot can be superimposed. These data are preferably displayed on a computer via a computer / computer, wherein the three-dimensional image of the sole of the foot can be processed by a person skilled in orthopedics. Such orthopedic trained professionals may be, for example, orthopedic or Orthopädieschuhtechniker or the like, which recognize any malpositions of a human foot and can take appropriate measures to reverse the malposition.

The possibly so revised 3D data of a sole of the foot are then translated, for example by means of a CAM program, into milling data with which the optionally orthopedically optimized sole shape can be introduced into a milling block. The possibly revised 3D data model of the sole of the foot represents the negative of the footbed to be inserted on the shoe insert, i. the shaping top of the last, which forms the individualized, custom-made, possibly orthopedically adapted footbed of the shoe insert in a molding step. Of course, the complete footbed can be individualized or only partial areas, depending on the customer's request and application.

According to the invention, the milling block consists of a plastic foam with a very low density, but the plastic foam is pressure-resistant. According to the invention, preference is given to using a plastic foam whose density is less than 50 kg / m ³ . The compressive strength for a plastic foam used according to the invention is preferably above 0.05 N / mm ² . The shoe insert strip according to the invention is therefore characterized by a very low weight, and is easy and quick to machine due to the pressure-resistant design of the plastic foam, in particular by conventional milling machines, preferably 3-axis milling machines.

The preferably used polystyrene, which is produced in particular as extruded sheet material and in professional circles as XPS (E x trudierter P oly s tyrol rigid foam) referred to is, is a long known in many applications used cost-effective material, which is primarily used as insulation material. Polystyrene foam (XPS) can be easily machined by milling, which greatly reduces the milling time required to make a shoe insert last compared to the materials used to date, thus saving expensive machine hours.

With the preferred use of polystyrene foam (XPS) not only many hours of work can be saved, but also complicated processing machines and processing devices can be avoided, since the plastic foam used, preferably XPS for milling does not have to be cooled or otherwise processed to abrasive machined to be able to. Due to the high melting temperature - at XPS greater than 240 ° C - and the low thermal conductivity, high cutting and feed speeds can be set, which in turn saves milling time and thus lowers the manufacturing costs. A normal milling machine, especially a bench milling machine, for machining, i. for making a shoe insert last is therefore sufficient. Another advantage of the use of plastic foam according to the invention as a strip material is that the strip after its production has a very low weight, whereby it is easy to transport and manipulate. Due to the low weight of the shoe insert last according to the invention high shipping and storage costs are avoided when shipping the last, for example, to an orthopedist or orthopedic shoe technician. The slight instability of some plastic rigid foams against UV light can be easily countered by a protective coating, such as a paint job.

As a result, the device according to the invention for the average consumer or a patient suffering from a foot deformity can inexpensively provide a device for the individual production and / or adaptation of a shoe insert. For the consumer, it is affordable by the strips according to the invention, to create customized for his various shoes and / or sports facilities optionally orthopedic shoe inserts, without having to spend a fortune. Also for the health insurance, this results in an enormous cost reduction potential, as patients with deformity of the foot can be supplied more cost-effectively with individually, orthopedically adapted, custom-made shoe inserts. This cost advantage continues in the further treatment, ie healing progress, as well as follow-up deposits benefit from this cost-effective manufacturing process. All in all, the very cost-effective production of the shoe inserts strips for the manufacture and / or adaptation of individual, custom-made orthopedically adapted shoe inserts ensures that the shoe inserts produced with the aid of a shoe according to the invention are very light are much cheaper and so are affordable for everyone. The thus created / adapted shoe inserts are not only preventively applicable at work and in sport, but also for the average consumer in everyday life interesting, to avoid possible Fußfehlstellungen with the associated inconvenience and / or pain.

With the inventively preferred use of XPS as a milling material for the production of strips for shoe inserts that are individually adapted to a sole and possibly develop an orthopedic corrective effect, so that the consumer is preventively tailored for his shoes individually on his soles shoe insoles to a financially portable Price can buy. This allows consumers to purchase a customized footwear optimized for them in a very cost effective manner, with which they can optimally transfer the forces acting on the foot on the shoe. This will avoid overloading the foot, which can lead to pain, in a simple and inexpensive manner. Furthermore, the insoles produced with the strips according to the invention can be repeatedly produced inexpensively, so that the consumer can equip several pairs of shoes with his feet optimally supporting shoe inserts. After some time, the custom-made, individualized, possibly orthopedically adapted shoe inserts can then be renewed inexpensively for the consumer again, since the required strips was already created with the first production and was kept at the orthopedic shoemaker or the customer himself.

The insoles produced with the shoe insert strips according to the invention are according to a first preferred embodiment of a thermoplastic material which can be pulled over the strips according to the invention. For this purpose, for example, a shoe insole blank, which was previously prepared, for example. By a foaming process, be pulled over the strips and brought to deformation temperature, so that the shaping top of the inventive leadership can form the orthopedically adapted footbed on the shoe insole blank. Needless to say, the entire orthopedically customized footbed can be formed over the shoe insert strips according to the invention, or only partial areas of a shoe insert can be shaped with the strip according to the invention. This will be done especially if only in small areas compared to a "normal form" of a footbed should be deviated. It is further encompassed by the inventive idea that the strip according to the invention is not formed as a complete negative of the footbed, but forms only portions of a footbed, such as the rear foot or the metatarsal or forefoot or a combination of areas.

The invention further encompasses the fact that the strip according to the invention is coated with a protective layer on its shaping upper side, which shows the negative shape of the footbed, that is to say the positive shape of the sole of the foot with optionally orthopedic adjustments. In a further preferred embodiment is then to coat the strips according to the invention with a protective layer when the strips in a casting mold, preferably in a RIM mold (R eAction I njection M oulding), is used. In this case, the shoe insert strips according to the invention can represent the shape-forming core for a footbed. The core is then preferably designed so that it is interchangeable with other cores. This allows molds, preferably RIM molds, customize and produce shoe inserts for a person in large numbers or create universal shoe inserts in a much larger variety that can cover, for example, a variety of typical Fußfehlstellungen, without the cost of such (Universal -) soles are significantly higher than non-orthopedic soles.

With the strip according to the invention as a mold core in a mold, in a further preferred embodiment foamed shoe inserts, i. Shoe inserts, which consist of foam plastic, in particular PU foam plastic, are produced inexpensively, even if their number of pieces to be produced is low. Compared to the individual mold, which is made of aluminum, for example, provided with a replaceable strips according to the invention foaming mold by alternately using several individually adapted strips can form more cost-effective individual shoe inserts in their production. The expensive formation of individualized molds is eliminated, since a (basic) mold can be used for the production of many different shoe inserts.

Ideally, individualized shoe inserts made of foam plastic with a shaping core according to the invention - which corresponds to a last - made in small series, so that the customer of the shoe insert for several pairs of shoes shoe inserts can buy cost and the customer not only have to make do with a pair of shoe inserts, and this of to put a pair of shoes in another pair of shoes. In addition, with several pairs of insoles, the foot hygiene is improved because the consumer does not have to constantly run with the same shoe inserts, which may lead to unpleasant odors in a penchant for foot sweat.

Foam plastic shoe inserts and here in particular individualized foam plastic shoe inserts also have the advantage that a high damping effect is achieved by the foam plastic material, especially in individualized shoe inserts exactly on the Can be trained where the consumer needs them. Solid plastic soles, which are coated with foam plastic for damping, for example, do not achieve such good and individually tuned damping. Furthermore, foam plastic inserts, which are produced in particular by the RIM process, can be produced with different foam hardnesses, whereby on the one hand the use of a last according to the invention an individualized shape can be achieved, and on the other hand over the entire plantar area variable hardness, as needed and Requirement of the customer, can be achieved. Thus, for example, the central heel area is softer to achieve a good damping than the area below the longitudinal arch of the foot, so that an optimal support of the foot can be achieved. In the forefoot area, however, you will prefer a softer version due to comfort. In the various areas of the foot, it is customary to adapt both the foam plastic and the mold individually to the needs of the wearer of the shoe insert, which can be implemented quickly with the use of a last according to the invention in a cost-effective manner.

However, the shoe insole strips according to the invention is not only suitable for the production of shoe inserts, but also for the adaptation of existing shoe inserts, especially if they are made of thermoplastic material. Thus, a shoe insert formed of thermoplastic material can be deformed over a shoe insert strips according to the invention when the shoe insole is brought to deformation temperature of the thermoplastic material and is deformed by the forming top of the last according to the invention, for example. By hot pressing. This results especially for orthopedic workshops a field of application of the shoe insert strips according to the invention in fitting devices for shoe insole or shoe insoles that require customization. An adaptation is necessary, for example, when the shoe insert is to be individually adapted to a sole of the foot or the foot shape of the wearer of an already created shoe insert has changed over time. Here is to think particularly of occurring healing in foot deformities. Preferably, the patient, who had, for example, a strong Senkfuß, with time require less and less shoe insert, since the longitudinal arch of his foot with increasing healing again forms. A shoe insert which is not optimally elevated at the respective time would have a negative healing effect with possibly pain for the wearer of the shoe insert. This in turn would mean that the shoe insert is not worn. The same applies to other Fußfehlstellungen, such as Spreizfüße.

However, adjustments to the insole can also be necessary because higher and higher loads on the foot caused by, for example, sports people, which can lead to an adjustment / optimization of the shoe insert.

With the strips according to the invention and its use as a shaping top for a footbed according to individual and orthopedic requirements also customized individual shoe inserts can be made of different materials, depending on the application of the shoe insert. Thus, for a customer shoe inserts for work shoes can be made in a soft cushioning material and shoe insoles are provided with the same individualized, custom-made, possibly orthopedic adapted form in a slightly firmer material, for example, to equip sports shoes or casual shoes. Thus, the consumer, e.g. Endurance running, hiking or skiing with optimized optimized for the transmission of individualized, possibly orthopedic shoe inserts painlessly and comfortably operate and can use softer individualized, possibly orthopedic shoe inserts that increase the wearing comfort in everyday work. The same strips can for example also serve for the formation of a footbed in inner shoes of ski boots or as the sole of slippers.

For the different design of shoe inserts also inserts and core parts, in particular for foot support, can be used, which preferably simultaneously form the underside of the shoe insert, in which they form, for example. With its outside the underside of the shoe insert. These inserts can in turn be created in different hardnesses, for example, to be used for shoe inserts for different conditions of use. If the individual, orthopedically adapted footbed is not formed on the insert, then the insert can be created in a universal form, which in turn has a cost-reducing effect.

In summary, it can be stated that with the use according to the invention of a rigid plastic foam, such as XPS, for example, a favorable, fast and effective manner of producing an individualized strip required for the customization of, if necessary, orthopedically adapted insoles is provided. The strips according to the invention can be stored by its training with pressure-resistant rigid foam plastic with little effort, so as to be used again at a later date as a footbed-shaping strips. In many cases, the strip according to the invention will also be individually customizable, so that a change in the foot of the customer can be taken into account. Thus, the strips according to the invention can be adapted to the change in the shape of the foot, in which, in particular by an orthopedic shoemaker, areas of the Doubled and / or other areas are removed, depending on how the shape of the foot has changed or the customer's adjustment needs.

The invention will be explained in more detail with reference to an accompanying figure, which merely serves to illustrate the invention and does not limit the scope of the invention. The figure shows a strip according to the invention 1 of a hard foam plastic material, which was created for example from an extruded polystyrene foam (XPS), and a custom with a strip 1 inventive strips, orthopedically adapted shoe insert. 2

The strips 1 according to the invention in this case has a shoe sole shape with rearfoot region 5, midfoot region 6 and forefoot region 7 in plan view. On a shaping upper side 3, the strip has the shape of a negative footbed 3. The shape of a negative footbed 3 was in this case formed from the positive shape of a sole of the foot, wherein the footsole data preferably measured or determined with a 3D scanner were adapted by orthopedic or orthopedic shoe technicians according to orthopedic considerations, if necessary with the aid of pressure zone evaluations of the sole of the foot.

As can be further seen from the figure, the strip 1 is formed, for example, in its contour so that it can be introduced as a shaping insert into a casting mold. Not necessarily, the side surfaces 10 of the last 1 of the invention are already adapted to the contour of a shoe, in which the shoe insert to be produced or adjusted is to be inserted. Especially for foaming molds, the strip 1 according to the invention will be made so large in its contour, at least in partial areas outside the areas covering the sole of the foot, that different foot bed forming strips 1 can be used for casting molds with which several shoe sizes can be produced. The base of a last 1 according to the invention, i. its non-forming side surfaces 10, therefore, are preferably determined by the devices in which the strip 1 of the invention is to find application. These may be molds or fitting devices for molding or thermoplastic deformation of shoe inserts 2.

The figure also shows a shoe insert 2 adapted with a shoe insert strip 1 according to the invention, in the rearfoot region 5 of which, for example, a heel cushion 9 * is formed in the central heel area. Furthermore, a longitudinal arch 6 * is laterally formed in the middle foot area 6 on the medial inside of the foot. A pad 8 * in the central region of the metatarsus can be just as individually adapted to the wearer of the shoe insert, as trained in the direction of the forefoot toe pad 11 * or in the transition region of Midfoot to the forefoot arranged football cushion 12 *, which is formed, for example. From a different material than the shoe insert base material. For clarity, the orthopedic elements exemplarily arranged on a shoe insert 2 have been marked with a "*" in the figure, their respective shaping regions being shown on the strip 1 according to the invention without addition of the reference number. The orthopedic elements of a shoe insert illustrated in the figure, as known to a person skilled in the art, represent only a selection of orthopedic elements that can be arranged on a shoe insert, wherein the orthopedic elements, not shown, are also included in the inventive concept, provided that this by means of a shoe insert strip according to the invention can be molded on a shoe insert 2.

In the attached figure, an orthopedic shoe insert 2 is shown, which was prepared, for example, from a thermoplastic deformable material as a shoe insert blank and which was pulled over a shoe insert strips according to the invention, such as. Also in the figure, bars shown to pass through the last individually, orthopedically adapted to a sole of the foot. In this case, the shoe insert thus adapted is essentially made of a single material component, which may be, for example, a PU foam plastic with different hardnesses or another thermoplastically deformable plastic.

However, the inventive concept also includes multicomponent shoe inserts which, for example, have an insert 13 in the rearfoot and / or midfoot region. The insert 13 is preferably arranged below the individual, orthopedically adapted footbed on the shoe insert and has, for example, a foot-supporting and foam plastic stabilizing function. Here, the insert is in a preferred embodiment on its outer side, ie the shoe sole facing side, preferably already before integration into the shoe insert to the shoe inner shape of the shoe in which the shoe insert is to be inserted adapted. Of course, the invention includes shoe insoles which have an internal insertion or core part 13. The inserts 13 may, but need not be of the same material as the material of the footbed. However, due to the foot-supporting function, the material hardness of the inserts 13 is often selected to be harder than the material of the comfort zones of the shoe insert 2. The footbed arranged above the insert 13 takes on a cushioning function, especially with hard inserts 13, wherein a heel cushion 9 is preferred in the central rearfoot region 5 of the shoe insert * is designed to dampen a hard putting on of the foot, especially on hard floors.

All in all, the present invention provides a possibility for anyone individually to the anatomical conditions orthopedically adapted shoe inserts cost to provide, which are reproducible at a later date, possibly in a further adapted form. At the same time, he can have his existing shoe inserts adapted in a cost effective manner by means of a shoe insert last according to the invention.

LIST OF REFERENCE NUMBERS

1

Shoe insert strips

2

Insole / shoe inserts blank

3

shaping top (negative footbed)

4

positive footbed

5

Rearfoot

6, 6 *

Longitudinal arch shape, longitudinal vault

7

forefoot

8, 8 *

Pad shape, pad

9, 9 *

Heel pad shape, heel padding

10

Side surfaces shoe insole

11, 11 *

Toe cushion shape, toe padding

12, 12 *

Soccer pillow shape Soccer pillow,

13

insert

Claims (19)

Shoe insert strips (1) for the manufacture and / or adaptation of individual, custom-made, orthopedically adapted shoe inserts (2) of malleable plastic material, wherein an upper side (3) of the footrest according to the specification of an individual, orthopedically adapted three-dimensional data model of a sole for shaping the plastic material Last (1) at least partially formed as a negative footbed (3) of an orthopedically adapted footbed (4),
characterized,
in that the shaping upper side (3) of the last (1) is milled from pressure-resistant plastic foam. Shoe insert last (1) according to claim 1, wherein the plastic foam has a density of less than 50 kg / m ³ and a compressive strength greater than 0.05 N / mm ² . Shoe insert last (1) according to claim 1 or 2, wherein the plastic foam is an extruded polystyrene foam (XPS). Shoe insert strips (1) according to one of the preceding claims, wherein the strip (1) is provided on its shaping upper side (3) with a protective layer. Shoe insert last (1) according to one of the preceding claims, wherein the last (1) is formed so that with the shaping top (3) an individually adapted orthopedic footbed (4) on a shoe insert (2) is malleable. Shoe inserts (1) according to one of the preceding claims, wherein the strip (1) is formed so that only partial areas of an orthopedic footbed (4) or a shoe insert (2) can be formed with its shaping upper side (3). A shoe insert mold, preferably a RIM mold, comprising a shoe insert strip (1) according to any one of claims 1 to 6 disposed in the mold so that when casting a shoe insert (2) an orthopedic footbed (4) passes through forming top (3) of the shoe insert strip (1) on the shoe insert (2) is malleable. Orthopedic shoe insert (2) made with a shoe insert mold according to claim 7, the footbed (4) of an elastic foam plastic, preferably polyurethane foam, is foamed. An orthopedic shoe insert adjustment device comprising a shoe insert strip (1) according to any one of claims 1 to 6, wherein the strip (1) is arranged and formed in the fitting device such that a shaping top (3) of the shoe insert last (1) a three-dimensional orthopedic adaptation of a shoe insert (2) or a shoe insert blank (2) can be achieved. Shoe insert adjusting device according to claim 9, wherein the adjustment of the shoe insert (2) or the shoe insert blank (2) by means of a thermoplastic deformation of the shoe insert (2). Orthopedic shoe insert (2) adapted with a shoe insert adjustment device according to claim 9 or 10. A manufacturing method of a shoe insert last (1) according to any one of claims 1 to 6, comprising the following steps: - creating an individualized three-dimensional data model of a sole of the foot, - adaptation of the data model according to orthopedic aspects, Creating a milling program based on the orthopedically adapted data model for producing a negative, individually adapted, orthopedic footbed (3) in a milling block, - Milling the negative footbed (3) in a hard foam block such that the milled surface serves as a shaping top (3) of the shoe insert last (1) in a production or adaptation of a shoe insert (2); Adaptation procedure of a shoe insert blank (2) of thermoplastically deformable plastic according to individual, orthopedic requirements with the following steps: - making a shoe insert last (1) according to one of claims 1 to 6 with the method according to claim 12, - Thermoplastic fitting of the shoe insert blank (2) to a shaping top (3) of the last (1); A fitting method according to claim 13, wherein the shoe insert blank (2) is orthopedically fitted by deep drawing to a foot sole. A fitting method according to claim 13, wherein the shoe insert blank (2) is orthopedically fitted by hot pressing to a foot sole. Manufacturing method of an individual, orthopedically adapted foam plastic shoe insert (2) with the following steps: - making a shoe insert last (1) according to one of claims 1 to 6 with the method according to claim 12, - Arranging the last (1) in a mold, preferably a RIM mold, such that a shaping top (3) of the shoe insert last (1) has a shaping surface for the formation of an individual, orthopedically adapted footbed (4) in the Mold forms, - Foaming of the shoe insert (2), wherein by the shaping top (3) of the last (1) an individual, orthopedically adapted footbed on the shoe insert (2) is generated. A manufacturing method of an individual, orthopedically adapted foam plastic shoe insert (2) according to claim 16, wherein the hindfoot region (5) and / or midfoot region (6) and / or forefoot region (7) are formed with foamed plastic of different hardnesses. A manufacturing method of an individual, orthopedically adapted foam plastic shoe insert (2) according to claim 16 or 17, wherein the foam plastic used is a PU foam. A manufacturing method of an individual, orthopedically adapted foam plastic shoe insert (2) according to claim 16 or 17, wherein an insert (13) is placed in the mold prior to casting / foaming the shoe insert such that the insert (13) is at least partially formed the foam plastic insert (2) is foamed with foam plastic and enters into a firm connection with this.

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