EP3282879A1 - Schuheinlage, verfahren zur herstellung einer derartigen schuheinlage, verwendung einer derartigen schuheinlage und schuh - Google Patents
Schuheinlage, verfahren zur herstellung einer derartigen schuheinlage, verwendung einer derartigen schuheinlage und schuhInfo
- Publication number
- EP3282879A1 EP3282879A1 EP15716042.5A EP15716042A EP3282879A1 EP 3282879 A1 EP3282879 A1 EP 3282879A1 EP 15716042 A EP15716042 A EP 15716042A EP 3282879 A1 EP3282879 A1 EP 3282879A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel plate
- spring steel
- shoe insert
- profile
- shoe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 87
- 239000006260 foam Substances 0.000 claims abstract description 51
- 229920003023 plastic Polymers 0.000 claims abstract description 27
- 239000004033 plastic Substances 0.000 claims abstract description 27
- 210000002683 foot Anatomy 0.000 claims description 43
- 238000005187 foaming Methods 0.000 claims description 23
- 230000000399 orthopedic effect Effects 0.000 claims description 13
- 210000004744 fore-foot Anatomy 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000011496 polyurethane foam Substances 0.000 claims description 7
- 208000008960 Diabetic foot Diseases 0.000 claims description 4
- 208000011580 syndromic disease Diseases 0.000 claims description 4
- 239000011148 porous material Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 13
- 238000005452 bending Methods 0.000 description 8
- 238000013016 damping Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000004088 foaming agent Substances 0.000 description 5
- 210000000452 mid-foot Anatomy 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000010985 leather Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229920001410 Microfiber Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000037396 body weight Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000002649 leather substitute Substances 0.000 description 2
- 239000003658 microfiber Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000001144 postural effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000001872 metatarsal bone Anatomy 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
- A43B13/181—Resiliency achieved by the structure of the sole
- A43B13/183—Leaf springs
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/12—Soles with several layers of different materials
- A43B13/125—Soles with several layers of different materials characterised by the midsole or middle layer
- A43B13/127—Soles with several layers of different materials characterised by the midsole or middle layer the midsole being multilayer
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
- A43B17/006—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material multilayered
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/04—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined with metal insertions or coverings
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/06—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined with metal springs
Definitions
- the invention relates to a shoe insert having a substantially over the entire length of the shoe insert extending spring steel plate which has at least partially a transverse profile in the longitudinal direction of the shoe insert, so that the spring steel plate iri Profiii ashamedsplatz bending stiff, in profile transverse direction, however, is bendable, and which is elastic after loading recovers, and with a plastic layer, in which the spring steel plate is embedded.
- a generic shoe insert in which the spring steel plate is embedded in a gel layer, is known for example from DE 10 20 3 006 962 A1.
- Gel materials comprise a solid component that forms a gel matrix within which a quasi-liquid component can move. By exerting pressure on the gel, the quasi-liquid component can escape the pressure in all three dimensions of space and return to the thus deflated areas of the gel matrix upon completion of the application of the pressure. In this way, the gel material can dampen the forces exerted on the foot of the user when walking, in particular in interaction with the spring material embedded in the gel material and provided with a transverse profile spring steel plate.
- the longitudinal direction of the profile is transverse to the longitudinal direction of the shoe insert.
- the profile of the spring steel plate extends transversely to the longitudinal direction of the shoe insert the word element "transversal” does not necessarily mean that the Profile longitudinal direction and the longitudinal direction of the shoe insert at an angle of 90 °. Rather, it can also be provided according to the invention that the profile longitudinal direction and the insert longitudinal direction together form an angle of between about 70 ° and about 90 °, advantageously between about 75 ° and about 80 °.
- the spring steel plate is "rigid in the longitudinal direction of the profile”
- it is meant to resist an arched bending of the spring steel plate around a bending axis parallel to the profile transverse direction
- Profile transverse direction pliable that it allows their buckling bending around a parallel to the profile longitudinal direction bending axis when walking.
- WO 2010/060627 A1 For further state of the art, reference is made to WO 2010/060627 A1. From this document, a shoe insert is known in which a corrugated spring steel plate is encased in plastic. Details of the plastic used are not to be found in this document. The disclosure of WO 2010/060627 A1 thus does not go beyond those of DE 10 20 3 006 962 A1.
- EP 1 602 294 A1 discloses a shoe insert in which a hard, i. In itself rigid core part is embedded in foamed polyurethane material. In this case, the core part extends only from the midfoot area to the heel area and also has openings for the passage of the polyurethane foam. Furthermore, the core part is made of hard polyurethane because polyurethane does not easily bond with other materials.
- the generic shoe insert in which the spring steel plate is embedded in a gel layer, has proven itself in practice, especially in the sports shoe area. In particular, the damping properties achieved by means of this shoe insert are perceived by the users as pleasant. However, there are also applications in which it would be desirable to if the shoe insert for the user's foot could provide increased stability, in particular lateral stability.
- a shoe insert comprising:
- plastic layer in which the spring steel plate is embedded wherein the plastic layer is formed of a closed cell foam having a Shore A hardness of between about 5 and about 25, preferably between about 10 and about 15, which covers the entire transverse profile of the spring steel plate at the top and at the bottom fills and adheres to the spring steel plate.
- the foot of the user squeezes sufficiently deep into the foam when walking that the cushioning is not felt to be abrupt but gradual.
- the foam fills the entire transverse profile of the spring steel plate both at the top and at the bottom thereof and also adheres to the spring steel plate, the forces exerted on the shoe insert from the foot can be effectively relayed to the profiled spring steel plate.
- the resulting and by bending soft design of the spring steel plate in the profile transverse direction enabled deformation of the spring steel plate also contributes to the damping, so that overall damping properties arise that are perceived by the user of the shoe insert as comfortable, as in the generic shoe insert.
- a closed-cell foam is used instead of the gel material.
- the gas trapped in the pores is held in place despite the compression of the foam, and can not escape to more remote areas of the foam, as can the quasi-liquid component of a gel in the gel matrix, and as particularly so in an open-cell foam is possible.
- This has a favorable effect on the support of the foot and gives the foot in particular lateral stability.
- This lateral stability is also aided by the design of the spring steel plate which is rigid in the longitudinal direction of the profile and at least counteracts lateral tilting of the foot if this is not even completely prevented.
- the inventive combination of the soft and closed-cell foam with the provided with a transverse profiling spring steel plate can be provided according to the above a shoe insert, on the one hand the same comfortable damping properties for the user as the generic gel shoe insert, on the other hand the user's foot but one offers increased lateral stability.
- the shoe inserts according to the invention can be used with orthopedic effect.
- an orthopedic effect is understood to mean both an effect whose purpose is to maintain an existing state of health of a foot, and an effect whose purpose is to improve the existing state of health.
- a foot deformation to improve.
- a health condition of a foot to be maintained may be both a desired, healthy condition of the foot, which need not be improved, as well as a congenital, accidental or caused by a disease, such as diabetes, deformed condition of the foot, but with no prospect it is possible to achieve a state improvement by further treatment, so that one is glad to be able to at least maintain it by means of a suitable insole.
- orthopedic shoe inserts can reduce or prevent postural damage or imminent postural damage due to foot or skeletal deformity.
- the shoe insert can move relatively freely about an axis parallel to the longitudinal direction of the shoe insert in front of and behind the point where the body center of gravity is currently projecting increased the wearing comfort of the shoe insert.
- a footbed is formed on the upper side of the plastic layer, preferably individually adapted.
- the top of the plastic layer is provided with a foam impermeable cover layer.
- This cover layer can be made for example of a film, leather, synthetic leather, felt or a textile material made of natural and / or synthetic fibers, such as a microfiber material. Many users prefer leather or a leather replicated material as cover layer material.
- At least one orthopedically active functional element is arranged between the upper side of the plastic layer and the cover layer.
- These functional elements can, for example, effect a specific shaping of the shoe insert towards the sole of the foot, for example with the aim of correcting, for example, supporting and / or relieving, action on specific sections of the sole of the foot.
- the functional elements may be harder or softer than the foam.
- pads and support rollers may be mentioned.
- the closed-cell foam has a mean density of between about 0.5 g / cm 3 and about 1, 5 g / cm 3 , preferably about 1, 0 g / cm 3 , and / or if the average diameter of the pores of the closed senporigen foam between about 0.5 mm and about 1, 5 mm, preferably about 1, 0 mm.
- closed-cell foam In principle, it is possible to use a polyethylene foam as closed-cell foam.
- the desired properties according to the invention can be achieved in a simple and cost-effective manner by virtue of the fact that the closed-cell foam is a polyurethane foam.
- the spring steel plate has an at least partially, preferably completely, roughened, for example etched, surface.
- the spring steel plate is formed without interruption.
- the spring steel plate extend into both the forefoot and heel regions.
- the transverse profile need not necessarily be provided both in the forefoot and in the midfoot area and in the heel area. Since the unrolling process of the foot in the metatarsal region is the least critical, it can rather be provided that the transverse profile is formed only in the forefoot region and in the heel region.
- the thickness of the plastic layer above the spring steel plate is at least 1.0 mm, preferably at least 2.0 mm.
- the thickness of the plastic layer below the spring steel plate is at most 1, 0 mm, preferably at most 0.5 mm.
- the total height of the spring steel plate is between about 0.5 mm and about 2 mm, preferably between about 1.3 mm and about 1.6 mm, and / or if the Period length of the transverse profile is between about 3 mm and about 15 mm, preferably between about 7 mm and about 12 mm, more preferably about 10 mm, and / or if the thickness of the spring steel plate is between about 0, 1 mm and about 0.6 mm , preferably between about 0.2 mm and about 0.4 mm, more preferably between about 0.25 mm and about 0.35 mm.
- the shape of the cross profile can be chosen arbitrarily depending on the particular application.
- the transverse profile may have a corrugated, a sinusoidal, a grooved, a ridged, a ribbed, a gutter or a bead shape.
- the invention relates to a method for producing a shoe insert with the following steps:
- the inventive method in a simple way to edit the later use of facing away from the foot underside of the cover layer before filling the cavity with foam mass, as the strips is placed with his sole contour facing up into the mold base and so on later lying on the foot cover layer is placed before filling the foam mass with its bottom up in the lower mold part.
- This can be used, for example, that at least one orthopedically active functional element is placed on the cover layer, in particular glued, before the foaming composition is filled.
- the cover layer is deep-drawn by a vacuum on the strips.
- a prepared unit of moldings lower part with inserted strips, deep-drawn cover layer, at least one applied functional element and optionally the attached intermediate frame is inserted into an arrangement in which the foaming composition is filled and the mold shell for placing to the prepared unit.
- said unit outside the range of a foaming system can be prepared for each patient.
- the invention relates to the use of such a shoe insert for the treatment of feet with orthopedic findings, in particular for the treatment of feet with diabetic foot syndrome.
- the invention also relates to a shoe whose sole comprises:
- the plastic layer in which the spring steel plate is embedded, the plastic layer being formed of a closed foam having a Shore A hardness of between about 5 and about 25, preferably between about 10 and about 15, which is the total cross profile the spring steel plate fills both at the top and at the bottom and adheres to the spring steel plate.
- Figure 1 is a plan view of a shoe insert according to the invention, wherein only a part of the transverse profile is indicated in the forefoot area;
- Figure 2 is a taken along the line II-II in Figure 1 sectional view of the shoe insert
- Figure 3 is an enlarged view of the detail III of Figure 2;
- Figure 4 is a perspective view of a mold assembly for
- Figure 5 is a perspective plan view of a lower mold part with inserted strips and pivoted intermediate frame
- Figure 6 is a perspective view similar to Figure 5 with a partially manufactured shoe insert.
- a shoe insert according to the invention is generally designated 10.
- the shoe insert 10 comprises a forefoot region 12, a midfoot region 14 and a heel region 16 and a longitudinal axis LL.
- the shoe insert 0 comprises a spring steel plate 18, which is embedded in a layer 20 of closed-cell soft foam, in particular polyurethane foam.
- the above the spring steel plate 18 arranged foam layer 22 is formed with a footbed 24, which is preferably formed individually adapted to the foot of the user of the shoe insert 10.
- the conclusion to the foot of the user forms an impermeable to the foam cover layer 26, which may be formed for example of leather or another plastic layer, such as a microfiber layer.
- at least one further, preferably orthopedically effective, functional element 28, 30 can be arranged between the foam layer 22 and the cover layer 26.
- a pad 28 is disposed in the transition from the forefoot 12 to the midfoot area 14, while in the heel area 16 a foam pad 30 is arranged, which is made of a foam which is softer than the polyurethane foam of the foam layer 20 and thus a pressure relief for providing the user's foot.
- the spring steel plate 18 is formed with a transverse profile 32.
- the extension direction Q of the profile ribs 34 of the transverse profile 32 (profile longitudinal direction) with the longitudinal direction L of the shoe insert 10 encloses an angle ⁇ whose value is preferably between about 70 ° and about 90 °.
- both the forefoot region 12 and the heel region 16 are provided with profile ribs 34, while at least one profile rib-free section 14a is provided in the midfoot region 14.
- the transverse profile 32 is meander-shaped in the illustration of FIG. 2, while it is sinusoidal in FIG. This is to show that it is only important that the cross profile has 32 peaks 32a and troughs 32b.
- the distance of the wave peaks 32a corresponds to the Wave troughs 32b of the height H of the transverse profile 32, while the distance between two adjacent wave peaks 32a and two adjacent wave troughs 32b of the periodicity P of the transverse profile 32 corresponds.
- the thickness of the spring steel plate 18 is designated.
- the polyurethane foam layer 22 arranged above the spring steel plate 18 extends beyond the peaks s1 over the peaks 32a of the spring steel plate 18 by the thickness s1, the thickness s1 also including the thickness of the cover layer 26 according to FIG.
- the polyurethane foam layer 36 arranged below the spring steel plate 18 extends beyond the wave troughs 32b by the thickness s2.
- s1 is greater than s2.
- FIG. 4 shows, in a schematic perspective view, a mold arrangement 40 with a three-part foaming mold for producing foamed shoe insoles.
- the foaming mold shown is used in conjunction with a foaming system, not shown here.
- the three-part mold comprises a mold bottom 42, an intermediate frame 44 and a mold top 46.
- the mold bottom 42 is mounted horizontally on a frame 48 of the mold assembly 40 fixed.
- the intermediate frame 44 and the upper mold part 46 are mounted on pivotally mounted on the frame 48 pivot arms 50, 52.
- a handle for a mechanical pivoting of the intermediate frame 44 is mounted on the lower mold part 42.
- the swivel arm 52 carrying the upper mold part 46 is connected to a pneumatic cylinder, not visible here, via which the upper mold part 46 can be pivoted onto the swung-down intermediate frame 44, so that the mold is closed.
- the lower mold part 42 has on its upper side in the outer region a substantially smooth, but not necessarily flat support and sealing surface 54 for the intermediate frame 44.
- positioning means 56 are arranged, for example bores and / or protruding bolts, which cooperate with corresponding corresponding positioning on the intermediate frame 44 and position the lower mold part 42 and the intermediate frame 44 to each other in the lateral direction and fix.
- a sole-shaped recess is arranged, which is surrounded by a protruding edge 58.
- the sole shape is asymmetrical according to the shape of the foot and reflects the shape of the right foot here.
- a second, mirror-image form is required. It is understood that it is also possible to manufacture the left and right inserts in a single mold, which provides corresponding recesses in mirror image.
- the recess in the lower mold part 42 serves as a receptacle for a last 60.
- the last 60 is inserted into the receptacle such that the contour of the underside of the foot reproduced by it (sole of the foot) points upwards.
- the strip 60 is loosely inserted into the receptacle, wherein between the strip 60 and the protruding edge 58, a circumferential narrow air gap is provided. Below the last 60 spacers can be inserted, which allow an exact height positioning of the last 60.
- the recess in the lower mold part 42, in which the strip 60 is inserted is connected via a channel with a vacuum port 62. About this vacuum port 62, the air gap between the protruding edge 58 and the strip 60 can be acted upon by actuation of a valve 64 with vacuum.
- the mold base 42 is by means of a snap fastener 66 on the
- Frame 48 mounted so that it can be easily replaced if necessary. Easy interchangeability of the mold bottom part 42 is particularly advantageous in order to enable a preparation (assembly) of the mold bottom part outside the region of the foaming system. This procedure will be described in more detail below.
- the mold base 42, the intermediate frame 44 and the mold top 46 are preferably made of aluminum, for example, milled from solid aluminum material. Also, the strip 60 may be made of aluminum.
- FIG. 5 shows the interaction of the lower mold part 42 and the intermediate frame 44.
- FIG. 5 shows a perspective view obliquely from above onto the lower mold part 42 with the strips 60 inserted and the intermediate frame 44 pivoted open.
- the intermediate frame 44 has on its upper side as well as on the underside not visible here in the outer area a substantially smooth contact and sealing surface 70 with positioning means 72.
- the positioning means 72 on the upper side serve for the lateral positioning and fixing of the attached upper mold part 46, which has corresponding corresponding positioning means 74 (see FIG.
- the portion of the last 60 is recessed at the intermediate frame 44, with the intermediate frame 44 contoured at the bottom along the perimeter of the recess complementary to the projecting edge 58 of the mold base.
- the intermediate frame 44 is provided on the inner circumferential edge 76 with side surfaces sloping downwards and inwardly.
- the upper mold part 46 in turn has in the outer area a smooth on-position and sealing surface 80 which rests on the upper sealing surface 70 of the intermediate frame 44.
- a projecting sole contour 82 with oblique side edges 84 is formed in the upper mold part 46.
- the oblique side edges 84 of the upper mold part 46 are in the closed mold on the also beveled inner circumferential edge 76 of the intermediate frame 44.
- a plurality of vent channels 86 are formed along the circumference.
- FIGS. 4 and 5 The mold shown in FIGS. 4 and 5 is suitable according to the invention in particular for producing foamed shoe inserts 10 with embedded spring steel plate 18, in which orthopedic functional elements 28, 30 are arranged between a cover layer 26 and the plastic foam layer 20 of the shoe insert 10.
- a manufacturing method of such a shoe pad 10 having the shape shown in Figs. 4 and 5 will be described in more detail below.
- FIG. 6 shows a schematic illustration of a lower mold part 42 with a pivoted-in intermediate frame 44 in the same way as FIG. 5 in an intermediate step of producing a shoe insert 10.
- a cover layer 26 is placed on the strips 60 at initially pivoted intermediate frame 44. By pivoting down the intermediate frame 44, the cover layer 26 is fixed between the intermediate frame 44 and the protruding edge 58 of the mold base 42. By opening the valve 64, the vacuum connection 62 is connected to a vacuum pump and the cover layer 26 is deep-drawn onto the strips 60.
- cover layer 26 e.g. known materials such as textile fabrics made of natural or synthetic fibers, leather or felt are used.
- orthopedic Functional elements 90 for example, damping and / or support elements such as pads or support rollers, individually selected and individually positioned on the cover layer 26 to arrange.
- an adhesive is preferably used, for example a neon prick adhesive.
- This procedure namely the application of orthopedic functional elements on the later inner side of a cover layer 26 essentially corresponds to the procedure for the manual construction of an orthopedic shoe insert in manual production.
- the arrangement allows ergonomic working, by which the functional elements 90 can be arranged with the necessary accuracy and flexibility. This is only possible because the bottom of the last 60 according to the invention has upwards, so that the functional elements 90 can be placed and initially remain in position by gravity until the adhesive used unfolds its adhesive effect.
- a mold base 42 is thus suitable for a certain shoe size or a certain shoe size range, but otherwise can be used for a variety of foot shapes.
- a bar that is actually adapted to a patient.
- a last can be created in a conventional manner by means of a footprint which is subsequently poured out.
- the illustrated system thus allows the interchangeability of the last 60 an individual adaptation of the basic shape of the insole to the patient.
- the lower mold part 42 can be removed from the frame 48 shown in FIG. 4, so that an inserted strip 60 outside the illustrated arrangement can be covered with the cover layer 26, which is then deep-drawn onto the strips 60 by the application of vacuum.
- the cover layer 26 can be pressed by hand sealingly on the lower mold part 42, so that vacuum can be pulled.
- the fold-down intermediate frame 44 which is pivotally mounted on the frame 48 according to the embodiment of Figure 4, instead to be mounted pivotally on the lower mold part 42.
- the intermediate frame is removed with the lower mold part 42 and can be used in the deep drawing of the cover layer 26 to press the cover layer 26 at its edge on the lower mold part 42.
- functional elements 90 can in turn be arranged on the cover layer 26.
- a mold base 42 prepared in this way can then be placed onto the frame 48 for the further processing steps, as a result of which the frame 48 located in the region of the foaming system can be used with high utilization and good throughput.
- a cavity is formed by the cover layer 26 provided with the functional elements 90 and the inner peripheral edge 76 of the intermediate frame 44 into which foam mass prepared via a mixing head of the foaming system is introduced.
- foam mass prepared via a mixing head of the foaming system is introduced.
- a polyurethane composition is used, but other foamable compositions can also be used.
- the filling of the foam mass is done via a mixing head with integrated dosing, so that as accurate as possible measured amount of foaming agent is filled.
- the foam mass fed fresh from the foaming plant has such a low viscosity that it distributes itself uniformly in the cavity.
- the spring steel plate 18 is inserted into the cavity. If desired, the spring steel plate 18 can be positioned in the cavity by means of positioning aids, for example positioning pins. Finally, a second predetermined amount of foam mass is introduced into the cavity, whose task is to cover the spring steel plate 18 and thus embed this completely in foam mass.
- the upper mold part 46 is pivoted onto the intermediate frame 44 and locked, so that now a closed space is formed, in which the reactive foaming agent now expands and then hardens.
- a heating element is integrated for this purpose, which serves to temper the mold.
- the heating element can also be arranged on the frame 48 in the form of a heating plate, which heats the lower mold part 42 from below.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2015/057965 WO2016165734A1 (de) | 2015-04-13 | 2015-04-13 | Schuheinlage, verfahren zur herstellung einer derartigen schuheinlage, verwendung einer derartigen schuheinlage und schuh |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3282879A1 true EP3282879A1 (de) | 2018-02-21 |
EP3282879B1 EP3282879B1 (de) | 2018-12-26 |
Family
ID=52829098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15716042.5A Active EP3282879B1 (de) | 2015-04-13 | 2015-04-13 | Schuheinlage, verfahren zur herstellung einer derartigen schuheinlage, verwendung einer derartigen schuheinlage und schuh |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3282879B1 (de) |
WO (1) | WO2016165734A1 (de) |
Families Citing this family (9)
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US10010137B2 (en) | 2014-07-30 | 2018-07-03 | Nike, Inc. | Article of footwear with banking midsole with embedded resilient plate |
CN115474732A (zh) * | 2017-08-31 | 2022-12-16 | 耐克创新有限合伙公司 | 鞋类物品的鞋底结构和相关方法 |
CN111343882B (zh) * | 2017-08-31 | 2023-03-21 | 耐克创新有限合伙公司 | 鞋类物品的鞋底结构和相关方法 |
CN112804905A (zh) | 2018-08-08 | 2021-05-14 | 耐克创新有限合伙公司 | 包含网状物的鞋类物品的鞋底夹层结构 |
EP4125484A1 (de) | 2020-03-29 | 2023-02-08 | NIKE Innovate C.V. | Sohlenstruktur eines schuhwerks |
WO2021211247A1 (en) | 2020-04-13 | 2021-10-21 | Nike Innovate C.V. | Footwear and sole structure assemblies with split midsoles having peripheral walls for lateral stability |
CN113021713A (zh) * | 2021-03-09 | 2021-06-25 | 广州市网能产品设计有限公司 | 一种硅胶鞋垫制作方法、应用该方法制作的模具及鞋垫 |
DE102021005238A1 (de) | 2021-10-20 | 2023-04-20 | Fritz Curtius | Paar Schuhe mit Außensohlen, Schuhinnensohlen und Struktursohlen |
DE202021003271U1 (de) | 2021-10-20 | 2022-08-25 | Fritz Curtius | Paar Schuhe mit Außensohlen, Schuhinnensohlen und Struktursohlen. |
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DE3734950A1 (de) * | 1987-10-15 | 1989-05-03 | Engros Schuhhaus Ag | Schuheinlegesohle |
ATE255339T1 (de) * | 2001-03-26 | 2003-12-15 | Vitaflex Dr Walter Mauch Gmbh | Innensohle für schuhe |
DE102008059030B4 (de) * | 2008-11-26 | 2014-09-25 | Helmut Mayer Gbr Mbh | Einlegesohle |
DE102013006962A1 (de) * | 2013-04-23 | 2014-10-23 | Fleximed Ag | Einlegesohle |
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