EP2156762A1 - Shoe sole with air ventilation - Google Patents
Shoe sole with air ventilation Download PDFInfo
- Publication number
- EP2156762A1 EP2156762A1 EP08014825A EP08014825A EP2156762A1 EP 2156762 A1 EP2156762 A1 EP 2156762A1 EP 08014825 A EP08014825 A EP 08014825A EP 08014825 A EP08014825 A EP 08014825A EP 2156762 A1 EP2156762 A1 EP 2156762A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shoe bottom
- heel
- midsole
- channel
- region
- 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.)
- Withdrawn
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 39
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 210000000452 mid-foot Anatomy 0.000 claims description 18
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 210000002414 leg Anatomy 0.000 description 11
- 241001272996 Polyphylla fullo Species 0.000 description 7
- 239000011324 bead Substances 0.000 description 7
- 210000002683 foot Anatomy 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- 206010060820 Joint injury Diseases 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 206010061223 Ligament injury Diseases 0.000 description 1
- 208000029549 Muscle injury Diseases 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 208000021945 Tendon injury Diseases 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 210000004394 hip joint Anatomy 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000001872 metatarsal bone Anatomy 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/06—Footwear with health or hygienic arrangements ventilated
- A43B7/08—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures
- A43B7/084—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures characterised by the location of the holes
- A43B7/088—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures characterised by the location of the holes in the side of the sole
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/06—Footwear with health or hygienic arrangements ventilated
- A43B7/08—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B1/00—Footwear characterised by the material
- A43B1/02—Footwear characterised by the material made of fibres or fabrics made therefrom
- A43B1/04—Footwear characterised by the material made of fibres or fabrics made therefrom braided, knotted, knitted or crocheted
-
- 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
- A43B13/026—Composites, e.g. carbon fibre or aramid fibre; the sole, one or more sole layers or sole part being made of a composite
-
- 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
-
- 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
-
- 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
- A43B13/143—Soles; Sole-and-heel integral units characterised by the constructive form provided with wedged, concave or convex end portions, e.g. for improving roll-off of the foot
- A43B13/145—Convex portions, e.g. with a bump or projection, e.g. 'Masai' type shoes
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
- A43B13/386—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process 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
- A43B17/08—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined ventilated
Definitions
- the present invention relates to a shoe bottom according to the preamble of claim 1 and a walker with a shoe bottom according to claim 13.
- MBT Metal-Coupled Biharmonic Foot Technology
- Swiss Masai Swiss Masai.
- Characteristic of the MBT is a convex in the direction of rounded sole shape with an inserted soft heel part, the so-called “Masai sensor”.
- the midsole has a reinforcing element integrated into it - called a "shank” - which reinforces the midsole so that it is also substantially rigid in its section located above the heel area. Due to the thus intentionally soft and destabilizing made shoe bottom construction of MBT walker loses the foot for the physiological locomotive characteristically support and support. This affects larger parts of the support and support muscles because the body must now be actively kept in balance.
- MBT walkers Due to the constant need for minimal balancing movements and adjustments of the foot musculature in search of a secure footing, MBT walkers wear a kind of permanent coordination training and stress additional parts of the skeletal musculature. In particular, neglected muscles are trained, the posture and gait are improved, and the body is toned and shaped. Furthermore, the wearing of MBT walkers in back, hip, leg and Foot complaints, help with joint, muscle, ligament and tendon injuries, as well as relieve hip and knee joints. On the one hand, the MBT walker leads to a greater circulation and thus heating of the foot and on the other hand, the shoe bottom has a considerable thickness with correspondingly good thermal insulation properties. It is therefore a need to provide a shoe bottom which is capable of dissipating heat more efficiently.
- shoe bottoms of other construction especially shoe bottoms for sports shoes.
- shoes from the Adidas "ClimaCool” series have air holes on the sole.
- a midsole body has at least one air inlet opening in the heel area and air outlet openings in the midfoot area and / or in the ball and toe area.
- the air inlet opening and the air outlet openings are connected to each other by means of a ventilation channel. This is on the side facing away from the outsole of the midsole body - on the top - covered with a cover. This is elastic under the load while walking, towards the outsole, yielding. Since the cover is elastic, it goes back to its original shape when relieved.
- Fig. 1 It shows in a plan view of a midsole body 10 of a midsole 12. It has in one, seen in the direction L, the rear portion 14 of a heel region 16 both on the shoe bottom inside 18 and on the Schuh foundedaussenseite 20 each an air inlet opening 22. Under shoe inner side 18 is the other shoe bottom of a pair facing side and with shoe bottom outside 20 to understand the side facing away from the shoe bottom.
- the midsole body 10 has a midfoot region 24 and a ball-toe region 26, both on the inside of the shoe bottom and on the outside of the shoe shoe each five air outlet openings 28.
- the midfoot region 24 connects to the heel region 16 and the ball toe region 26 to the midfoot region 24, each of these regions extending approximately over one third of the length of the shoe bottom.
- the air inlet openings 24 and the air outlet openings 28 are connected to one another via a ventilation channel 30 formed by a depression in the midsole body 10.
- This has in the heel region 16 on a heel portion 32 with two legs 34 arranged in a V-shape. Each of these legs 34 leads to one of the two air inlet openings 22.
- the ventilation channel 30 has a distributor section 36, whose channel trunk section 38, which is connected to the legs 34 of the heel section 32, extends in the shoe longitudinal direction S as far as the ball-toe area 26. In the direction perpendicular to the shoe longitudinal direction S seen the channel trunk portion 38 is offset with respect to the shoe center in the direction of the shoe bottom inside 18 to extend below the inner spine.
- Channel channel sections 40 branch off from the channel trunk section 38 on both sides, wherein each of these channel channel sections 40 extends to one of the air outlet openings 28.
- Both the air inlet openings 22 and the air outlet openings 28 have a width of preferably at least 4 mm and a length which is preferably at least twice as large as said width. Accordingly, also the Ventilation channel 30, measured in a direction perpendicular to the overhead, footbed surface 42 of the midsole body 10, with respect to this a depth of preferably at least 4mm. The width of the ventilation channel 30 is preferably greater everywhere than the depth, preferably at least twice as large.
- an elastically resilient cover 52 On the side of the surface 42 of the ventilation channel 30 is covered by an elastically resilient cover 52, which in Fig. 1 not shown, to which, however, preferred embodiments in connection with the FIGS. 4 to 6 are described.
- Fig. 2 shows in side view a midsole 12 of the shoe bottom, the midsole body 10 in the rear portion 14 of the heel 16 - on both sides - an air inlet opening 22 and in the midfoot area 24 and ball-toe area 26 total 4 air outlet openings 28, which in the shoe longitudinal direction S consecutively and in succession their inclination and length are arranged like scales overlapping.
- the air inlet opening 22 and the air outlet openings 28 are corresponding to a ventilation channel 30 Fig. 1 fluidly connected to each other; this has four Kanalastabites 40 on both sides.
- the midsole body 10 has on its underside, which faces an outsole 44, a heel recess 46, in which a heel piece 48 is disposed. This extends, viewed in the shoe longitudinal direction S, from the rear portion 14 of the heel region 16 to approximately in the middle of the midsole 12 and extends over the entire width of the Midsole 12 having a least approximately constant cross-section in the shape of a convex-convex lens.
- the soft heel part 48 and the midsole body 10 hold the outsole - in the unloaded state - in a continuously convex in the shoe bottom longitudinal direction S rounded shape, as is well known from MBT walkers.
- the soft heel part 48 has a maximum thickness of about 20mm. Accordingly, the largest thickness of the midsole body 10 is about 30mm.
- the midsole body 10 has a peripheral bead 50, which protrudes in the direction of the surface 42 in the direction of the top. This serves on the one hand for fastening the midsole 12 to a shaft 56 and on the other hand, in the recess bounded by the surface 42 and the bead 50, the above-mentioned cover 52 is arranged.
- the soft heel part is preferably made of an open-pore polyurethane elastomer foam (PUR Shore 30 C) and the midsole body 10 made of a polyurethane elastomer (PUR Shore 58 C) or an ethylene vinyl acetate (EVA); this applies to all embodiments shown.
- PUR Shore 30 C open-pore polyurethane elastomer foam
- PUR Shore 58 C polyurethane elastomer
- EVA ethylene vinyl acetate
- Fig. 3 shows a midsole 12 of the shoe bottom, which is the same as the one according to Fig. 2 However, now that the air inlet openings 22 and the air outlet openings 28 are formed oval and run in a row behind one another in an upper edge region of the midsole body 10. Again, the air inlet openings 22 and the air outlet openings 28 via a corresponding ventilation channel 30 are interconnected.
- the elastically deformable cover 52 for the ventilation channel 30 is preferably formed by an insole 54, which is placed on the upper surface 42 of the midsole body 10 and extends on all sides to the bead 50 and the middle of the body 10 attached to the bead 50 and abutting shaft extends ,
- insole 54 has an overhead, air-permeable support layer 58, from which in the direction towards the bottom, in the installed state on the midsole body 10 to, in a grid and at a distance from each other arranged support members 60 protrude.
- These are preferably formed in a double-cone shape and made of an elastic plastic. They thus adapt optimally to the depressions in the midsole body 10. When installed, they rest with their free end on the midsole body 10.
- FIG. 5 Another embodiment of the insole 54 is in Fig. 5 shown. It also has an overhead, air-permeable support layer 58. From this stand in the direction of down wavy shaped, elastically deformable support bands 62 from. These preferably extend in a direction perpendicular to the support layer 58 and mutually parallel planes. In the installed state, the support bands 62 are located on the midsole body 10 with the carrier layer 58 facing away from wave crests.
- the support elements 60 or the support belts 62 thus form an elastically yielding support layer 64 for the support layer 58.
- the support layer 64 is designed as a spacer fabric 66.
- the upper side forms the air-permeable carrier layer 58 and from this extend elastically deformable pile threads in the direction towards the bottom, also called spacer threads.
- Knitted fabrics of this type are produced for example by the company Müller Textil GmbH, Wiehl-Drabender Little (DE) and marketed under the name "3mesh”.
- Possible embodiments of the spacer knitted fabric 66 are, for example, in EP 1 775 362 A and EP 1 860 218 A disclosed.
- FIG. 7 is, in perspective exploded view, according to a preferred embodiment of the shoe bottom Fig. 2 shown.
- the midsole body 10 is provided with the heel recess 46.
- the soft heel part 48 is inserted into the heel recess 46, in the present case space-filling.
- the outsole 44 as known from MBT walkers, is attached to the midsole body 10 and heel piece 48, thereby maintaining it in the convex shape, cf.
- FIGS. 2 and 3 It consists for example of rubber and has a Shore hardness A 55 - 65 on.
- a ventilation insert element 68 which in the Fig. 7 is shown detached from the midsole body 10, but is integrated into this. Seen in plan view, the ventilation insert member 68 has a U-shape, wherein the two parallel legs 70, 70 'extend in the shoe bottom longitudinal direction S and at their, seen in the direction L, the rear end via an arc portion 72 are interconnected.
- the two legs 70, 70 'and the arc portion 72 are formed by a cross-sectionally U-shaped channel wall 74, wherein this channel wall 74 in the region of the legs 70, 70 'per a channel trunk portion 38' limited.
- the legs 70, 70 'and the curved section 72 are open in the direction towards the top on the side facing away from the outsole 44.
- the channel wall 74 forms a bottom part 76 and an inner wall part 78 and an outer wall part 80, wherein these two wall parts 78, 80 project from the bottom part 76 in the direction towards the top.
- the depth of the U-shaped cross section measured from the free edge of the wall parts 78, 80 bis to the bottom part 76, preferably at least 4mm.
- the wall parts 78, 80 are preferably at least 8mm apart. In the midfoot region 24, the said depth increases according to the shape of the heel recess 46 and then, in the direction towards the front end in the direction L, decreases continuously.
- the ventilation insert element 68 is preferably made of TPU Shore 85 A by injection molding.
- Fig. 7 further shows a reinforcing element 86, which has such a stability at least in the heel region 16 and midfoot region 24 that the midsole 12 is at least approximately resistant to bending in its section located above the soft heel part 48, with respect to loads during standing and walking.
- the reinforcing element 86 is encompassed by the ventilation insert element 68.
- the reinforcing element 68 is thus, seen in the direction perpendicular to the shoe bottom longitudinal direction S, in a central region of the midsole body 10, wherein in the direction against the shoe bottom inside 18 and in the direction against the shoe bottom outside 20 each one of the two channel trunk sections 38 'is arranged.
- the reinforcing element 86 which is also preferably produced by injection molding, has an overhead, tongue-shaped, plate-like support member 88 and one of this, in the direction towards below projecting, V-shaped support member 90. Both the support member 88 and the support member 90 are double-walled, wherein the two walls are fixedly connected to each other via ribs 92.
- the support member 82 is located in the midsole body 10 integrated state close to the surface 42, as the midsole body 10 in Fig. 7 suggests;
- the reinforcing element 86 is already in Midsole body 10 integrated. It extends between the two legs 70, 70 'from the inner wall portion 78 in the arch portion 72 in the direction L forward against a front portion of the ball-toe portion 26.
- the reinforcing member 86 in the heel region 16 and midfoot region 24 is rigid and for example, made of nylon 12, while it may be flexibly formed in the ball-toe area 26 and consists for example of TPU.
- the support member 90 is also formed stably, wherein seen in the direction L, rear leg 90 'of the support member 90 is formed according to the heel recess 46 and this rear leg 90' with the front leg 90 "when seen in the direction L, front Meet the end of the heel recess 46 and form a tilting edge 94 there.
- the prefabricated reinforcing element 86 and the prefabricated ventilation insert element 86 can be inserted into a cavity of an injection mold for spraying the midsole body 10, wherein after closing the mold, for example PUR Schor 58 C is injected for molding the midsole body 10.
- the injection molding tool support ribs for the channel wall 74 and in the Beereintrittrohrstummel 82 and the air outlet pipe stub 84 engaging slide to prevent compression of the Ventilationstivelements 86 during injection molding of the midsole body 10.
- FIG. 7 shows Fig. 7 the insole 54, which forms the cover 52, which acts on the surface 42 formed by the midsole body 10, possibly the reinforcing element 86 and the exposed end face of the outer wall part 80 and inner wall part 78.
- the insole 54 is encompassed by the relatively high-trained bead 50.
- the support layer 58 of the insole 54 is formed like a footbed and the thickness of the support layer 64 is adjusted accordingly.
- the surface 42 between the outer wall portion 80 and the bead 50 has a continuous belt-like surface portion 42 'on both the shoe bottom interior 80 and shoe bottom side 20 such that the support layer 64 circumferentially extends along the bead 50 above the reinforcement member 86 to a broad center portion is supported over the entire length of the midsole body 10.
- the 8 and 9 show a further possible embodiment of the reinforcing member 86 for a midsole 12 according to the Fig. 2 or 3 , which correspond with a ventilation channel 30 Fig. 1 is trained.
- Fig. 10 the reinforcing element 86 is shown in perspective obliquely from above. Its task is exactly the same, as above in connection with the embodiment according to Fig. 7 described and known from MBT walkers forth.
- the outlines of the midsole 12 are indicated and the reinforcing element 86 darkened.
- the planar reinforcing element 86 runs in the midsole body 10 along the heel recess 46 and in the midfoot region 24 and in a, viewed in the direction L, rear portion of the ball-toe region 26 in the interior of the midsole body 10 at a distance below the ventilation channel 30.
- Da Wall thickness of the midsole body 10 between the heel recess 46 and the surface 42 in the heel area 16 is much smaller than in the midfoot area 24 and ball-toe area 26, the use of known from MBT walkers reinforcing element 86 could lead to insufficient depth of the ventilation channel 30 in the heel section 32. This is especially clear Fig. 9 where the ventilation duct 30 is shown grayed out.
- the reinforcing element 86 in the heel region 16 has a channel-like recess 96 which corresponds to the heel section 32 and is V-shaped in plan view.
- the latter can have, for example, support ribs running along the webs 100 separating the passages 98 on the underside. Even if they protrude into the soft heel part 48, the behavior of the shoe bottom or its properties is not changed as a result of their low height. It is also possible to form the recess element 86 in the heel region 16 of a more stable material.
- cover 52 or insole 54 is permeable to air, cool air is further forced against the foot of the user.
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen Schuhboden gemäss dem Oberbegriff des Patenanspruchs 1 sowie ein Gehgerät mit einem Schuhboden gemäss Anspruch 13.The present invention relates to a shoe bottom according to the preamble of claim 1 and a walker with a shoe bottom according to claim 13.
Eine spezielle Schuhbodenkonstruktion für Gehgeräte ist unter dem Namen "Masai Barefoot Technology", kurz MBT genannt, und auch unter dem Label Swiss Masai bekannt. Kennzeichnend für die MBT ist eine konvex in Laufrichtung abgerundete Sohlenform mit einem eingefügten Fersenweichteil, dem sogenannten "Masai-Sensor". Die Mittelsohle weist ein in sie integriertes Verstärkelement - "Shank" genannt - auf, welches die Mittelsohle derart verstärkt, dass sie auch in ihrem oberhalb des Fersenweichteils befindenden Abschnitt im Wesentlichen biegesteif ist. Bedingt durch die dadurch absichtlich weich und destabilisierend gemachte Schuhbodenkonstruktion des MBT-Gehgeräts verliert der Fuss den für die physiologische Fortbewegung kennzeichnenden Halt und Stütze. Dies wirkt sich auf grössere Teile der Halte- und Stützmuskulatur aus, weil der Körper jetzt aktiv im Gleichgewicht gehalten werden muss. Aufgrund dieser ständig erforderlichen minimalen Ausgleichsbewegungen und Anpassungen der Fussmuskulatur auf der Suche nach einem sicheren Stand wird durch das Tragen von MBT-Gehgeräten eine Art permanentes Koordinationstraining absolviert und werden zusätzliche Teile der Skelettmuskulatur beansprucht. Insbesondere werden vernachlässigte Muskeln trainiert, die Haltung und das Gangbild verbessert sowie der Körper gestrafft und geformt. Weiter kann das Tragen von MBT-Gehgeräten bei Rücken-, Hüft-, Bein- und Fussbeschwerden, bei Gelenk-, Muskel-, Bänder- und Sehnenverletzungen helfen, sowie Hüft- und Kniegelenke entlasten. Einerseits führt das MBT-Gehgerät zu einer stärkeren Durchblutung und somit Erwärmung des Fusses und andererseits weist der Schuhboden eine erhebliche Dicke mit entsprechend guten thermischen Isolationseigenschaften aus. Es ist deshalb ein Bedürfnis, einen Schuhboden zu schaffen, welche befähigt ist, verbessert Wärme abzuführen.A special shoe floor construction for walkers is known under the name "Masai Barefoot Technology", MBT for short, and also under the label Swiss Masai. Characteristic of the MBT is a convex in the direction of rounded sole shape with an inserted soft heel part, the so-called "Masai sensor". The midsole has a reinforcing element integrated into it - called a "shank" - which reinforces the midsole so that it is also substantially rigid in its section located above the heel area. Due to the thus intentionally soft and destabilizing made shoe bottom construction of MBT walker loses the foot for the physiological locomotive characteristically support and support. This affects larger parts of the support and support muscles because the body must now be actively kept in balance. Due to the constant need for minimal balancing movements and adjustments of the foot musculature in search of a secure footing, MBT walkers wear a kind of permanent coordination training and stress additional parts of the skeletal musculature. In particular, neglected muscles are trained, the posture and gait are improved, and the body is toned and shaped. Furthermore, the wearing of MBT walkers in back, hip, leg and Foot complaints, help with joint, muscle, ligament and tendon injuries, as well as relieve hip and knee joints. On the one hand, the MBT walker leads to a greater circulation and thus heating of the foot and on the other hand, the shoe bottom has a considerable thickness with correspondingly good thermal insulation properties. It is therefore a need to provide a shoe bottom which is capable of dissipating heat more efficiently.
Dasselbe Bedürfnis besteht auch bei Schuhböden anderer Konstruktion, insbesondere bei Schuhböden für Sportschuhe. So weisen beispielsweise Schuhe der "ClimaCool"-Serie der Firma Adidas Luftöffnungen an der Sohle auf.The same need also exists for shoe bottoms of other construction, especially shoe bottoms for sports shoes. For example, shoes from the Adidas "ClimaCool" series have air holes on the sole.
Es ist eine Aufgabe der vorliegenden Erfindung, einen Schuhboden mit verbesserten Wärmeabführeigenschaften zu schaffen.It is an object of the present invention to provide a shoe bottom with improved heat dissipation properties.
Diese Aufgabe wird mit einem Schuhboden gelöst, welcher die Merkmale des Patentanspruchs 1 aufweist.This object is achieved with a shoe bottom, which has the features of claim 1.
Ein Mittelsohlenkörper weist im Fersenbereich wenigstens eine Lufteintrittöffnung, sowie im Mittelfussbereich und/oder im Ballen-Zehenbereich Luftaustrittöffnungen auf. Die Lufteintrittöffnung und die Luftaustrittöffnungen sind mittels eines Ventilationskanals miteinander verbunden. Dieser ist auf der der Laufsohle abgewandten Seite des Mittelsohlenkörpers - auf dessen Oberseite - mit einer Abdeckung überdeckt. Diese ist unter der Belastung beim Gehen elastisch, in Richtung zur Laufsohle hin, nachgiebig. Da die Abdeckung elastisch ist, geht sie bei Entlastung wieder in ihre ursprüngliche Form zurück.A midsole body has at least one air inlet opening in the heel area and air outlet openings in the midfoot area and / or in the ball and toe area. The air inlet opening and the air outlet openings are connected to each other by means of a ventilation channel. This is on the side facing away from the outsole of the midsole body - on the top - covered with a cover. This is elastic under the load while walking, towards the outsole, yielding. Since the cover is elastic, it goes back to its original shape when relieved.
Durch die Abrollbewegung beim Gehen erfolgt somit zwangsweise ein stetiger Luftaustausch im Schuhboden, was zu verbesserter Wärmeabgabe führt. Die damit erzwungene Luft-Ventilation bewirkt, dass Luft durch die Lufteintrittöffnung in den Schuhboden eintritt und bei den Luftaustrittöffnungen wieder austritt, was einer Aufstauung erwärmter Luft unter dem Fuss entgegenwirkt.As a result of the rolling movement while walking, a constant exchange of air thus inevitably takes place in the shoe bottom, which leads to improved heat dissipation. The thus forced air ventilation causes air enters through the air inlet opening in the shoe bottom and exits at the air outlet openings, which counteracts a damming of heated air under the foot.
Durch die Kompression des Sohlenbodens, beziehungsweise dessen Abdeckung beim Aufsetzen der Ferse wird die erwärmte Luft im Ventilationskanal, entsprechend der nachfolgenden Abrollbewegung, durch die Luftaustrittöffnungen gepresst. Im Zuge der Abrollbewegung wird der Fersenbereich entlastet, was zum Einsaugen von Frischluft durch die Lufteintrittöffnung in den Ventilationskanal führt. Eine für dieses rein mechanische Prinzip optimale Abrollbewegung und damit einhergehende optimale Luftventilation wird mit Schuhböden gemäss Anspruch 9 erzielt. Mit herkömmlichen Schuhböden dürfte eine derart effiziente Luft-Ventilation nicht erzielbar sein.By the compression of the sole bottom, or its cover when placing the heel, the heated air in the ventilation channel, according to the subsequent rolling movement, pressed through the air outlet openings. In the course of the rolling movement of the heel area is relieved, which leads to the suction of fresh air through the air inlet opening in the ventilation channel. An optimal for this purely mechanical principle rolling movement and the associated optimal air ventilation is achieved with shoe bottoms according to claim 9. With conventional shoe bottoms such efficient air ventilation would not be achievable.
Weitere bevorzugte Ausführungsformen des erfindungsgemässen Schuhbodens sind in den weiteren abhängigen Patentansprüchen angegeben.Further preferred embodiments of the inventive shoe bottom are specified in the further dependent claims.
Die Erfindung wird anhand in der Zeichnung dargestellter Ausführungsbeispielen näher erläutert. Es zeigen rein schematisch:
- Fig. 1
- in Aufsicht einen Mittelsohlenkörper eines erfindungsgemässen Schuhbodens mit zwei Lufteintrittsöffnungen im Fersenbereich, welche über einen Ventilationskanal mit innenseitigen und aussenseitigen Luftaustrittöffnungen im Mittelfussbereich sowie im Ballen-Zehenbereich strömungsverbunden sind;
- Fig. 2
- in Seitenansicht einen erfindungsgemässen Schuhboden mit am Mittelsohlenkörper ausgebildeten Lufteintrittöffnungen sowie Luftaustrittöffnungen, welche sich in Richtung zur Laufsohle hin erstrecken, wobei der Mittelsohlenkörper eine Fersenausnehmung aufweist, in welcher ein Fersenweichteil angeordnet ist;
- Fig. 3
- ebenfalls in Seitenansicht eine weitere Ausführungsform eines erfindungsgemässen Schuhbodens, ebenfalls mit einem in einer Fersenausnehmung des Mittelsohlenkörpers angeordneten Fersenweichteils und Lufteintritt- sowie Luftaustrittöffnungen, welche jedoch in einem oben liegenden Randbereich des Mittelsohlenkörpers angeordnet sind;
- Fig. 4
- in perspektivischer Darstellung eine bevorzugte Ausführungsform einer Abdeckung für den Ventilationskanal mit einer luftdurchlässigen Trägerschicht und von dieser abstehenden, doppelkegelförmigen, elastischen Stützelementen;
- Fig. 5
- in gleicher Darstellung wie
Fig. 4 eine weitere bevorzugte Ausführungsform der Abdeckung, welche ebenfalls eine luftdurchlässige Trägerschicht aufweist, von der jedoch elastisch verformbare wellenförmige Stützbänder abstehen; - Fig. 6
- in gleicher Darstellung wie
Fig. 4 und 5 eine weitere besonders bevorzugte Ausführungsform der Abdeckung mit einer luftdurchlässigen Trägerschicht und einer als Abstandsgewirke ausgebildeten Stützschicht; - Fig. 7
- in Explosionsdarstellung eine mögliche Ausführungsform des Schuhbodens gemäss
Fig. 2 ; - Fig. 8
- in Seitenansicht eine weitere mögliche Ausführungsform des Schuhbodens gemäss
Fig. 2 ; - Fig. 9
- in Draufsicht den Schuhboden gemäss
Fig. 8 , wobei der Mittelsohlenkörper durchsichtig und der Ventilationskanal in Graufärbung dargestellt sind; und - Fig. 10
- in perspektivischer Darstellung ein Verstärkungselement der Ausführungsform gemäss den
Fig. 8 und 9 .
- Fig. 1
- in plan view a midsole body of a shoe bottom according to the invention with two air inlet openings in the heel area, which via a ventilation channel with inside and outside air outlet openings in Metatarsal area and in the ball-toe area are fluidly connected;
- Fig. 2
- in side view, a shoe bottom according to the invention with formed on the midsole body air inlet openings and air outlet openings, which extend in the direction of the outsole, wherein the midsole body has a heel recess, in which a soft heel part is arranged;
- Fig. 3
- likewise a side view of a further embodiment of a shoe bottom according to the invention, likewise with a heel part arranged in a heel recess of the midsole body and air inlet and air outlet openings, which, however, are arranged in an upper edge region of the midsole body;
- Fig. 4
- a perspective view of a preferred embodiment of a cover for the ventilation channel with an air-permeable support layer and protruding from this, double-cone-shaped, elastic support elements;
- Fig. 5
- in the same representation as
Fig. 4 a further preferred embodiment of the cover, which also has an air-permeable support layer, of which, however, project elastically deformable wave-shaped support bands; - Fig. 6
- in the same representation as
4 and 5 a further particularly preferred embodiment of the cover with an air-permeable support layer and a spacer formed as a support layer; - Fig. 7
- in an exploded view of a possible embodiment of the shoe bottom according to
Fig. 2 ; - Fig. 8
- in side view of another possible embodiment of the shoe bottom according to
Fig. 2 ; - Fig. 9
- in plan view the shoe bottom according
Fig. 8 wherein the midsole body is transparent and the ventilation channel is shown in gray tint; and - Fig. 10
- in a perspective view of a reinforcing element of the embodiment according to the
8 and 9 ,
Weiter weist der Mittelsohlenkörper 10 in einem Mittelfussbereich 24 und in einem Ballen-Zehenbereich 26, sowohl schuhbodeninnenseitig als auch schuhbodenaussenseitig je fünf Luftaustrittöffnungen 28 auf. In Laufrichtung L gesehen schliessen der Mittelfussbereich 24 an den Fersenbereich 16 und der Ballen-Zehenbereich 26 an den Mittelfussbereich 24 an, wobei sich jeder dieser Bereiche etwa über einem Drittel der Länge des Schuhbodens erstreckt.Furthermore, the
Die Lufteintrittöffnungen 24 und die Luftaustrittöffnungen 28 sind über einen durch eine Vertiefung im Mittelsohlenkörper 10 gebildeten Ventilationskanal 30 miteinander verbunden. Dieser weist im Fersenbereich 16 einen Fersenabschnitt 32 mit zwei V-förmig angeordneten Schenkel 34 auf. Jeder dieser Schenkel 34 führt zu einer der beiden Lufteintrittöffnungen 22. Anschliessend an den Fersenabschnitt 32 weist der Ventilationskanal 30 einen Verteilerabschnitt 36 auf, dessen mit den Schenkeln 34 des Fersenabschnitts 32 strömungsverbundener Kanalstammabschnitt 38, in Schuhlängsrichtung S, bis zum Ballen-Zehenbereich 26 verläuft. In Richtung rechtwinklig zur Schuhlängsrichtung S gesehen ist der Kanalstammabschnitt 38 bezüglich der Schuhlängsmitte in Richtung gegen die Schuhbodeninnenseite 18 versetzt, um unterhalb des Innenspanns zu verlaufen.The
Vom Kanalstammabschnitt 38 zweigen beidseitig Kanalastabschnitte 40 ab, wobei jeder dieser Kanalastabschnitte 40 zu einer der Luftaustrittöffnungen 28 verläuft.
Sowohl die Lufteintrittöffnungen 22 als auch die Luftaustrittöffnungen 28 weisen eine Breite von vorzugsweise mindestens 4mm und eine Länge auf, welche vorzugsweise wenigstens doppelt so gross ist wie die genannte Breite. Entsprechend weist auch der Ventilationskanal 30, in einer Richtung rechtwinklig zur oben liegenden, fussbettseitigen Oberfläche 42 des Mittelsohlenkörpers 10 gemessen, bezüglich dieser eine Tiefe von vorzugsweise mindestens 4mm auf. Die Breite des Ventilationskanals 30 ist in bevorzugter Weise überall grösser als die Tiefe, vorzugsweise mindestens doppelt so gross.Both the
Auf der Seite der Oberfläche 42 ist der Ventilationskanal 30 von einer elastisch nachgiebigen Abdeckung 52 überdeckt, welche in
Der Mittelsohlenkörper 10 weist auf seiner Unterseite, welche einer Laufsohle 44 zugewandt ist, eine Fersenausnehmung 46 auf, in welcher ein Fersenweichteil 48 angeordnet ist. Dieser erstreckt sich, in Schuhlängsrichtung S gesehen, vom hinteren Abschnitt 14 des Fersenbereichs 16 bis etwa in die Mitte der Mittelsohle 12 und verläuft über die gesamte Breite der Mittelsohle 12 mit einem wenigsten annähernd konstanten Querschnitt in der Form einer konvex-konvexen Linse. Das Fersenweichteil 48 und der Mittelsohlenkörper 10 halten die Laufsohle - im unbelasteten Zustand - in einer kontinuierlich konvex in Schuhbodenlängsrichtung S abgerundeter Form, wie dies von MBT-Gehgeräten allgemein bekannt ist. Das Fersenweichteil 48 hat eine grösste Dicke von ca. 20mm. Entsprechend betrifft die grösste Dicke des Mittelsohlenkörpers 10 etwa 30mm.The
An dieser Stelle sei erwähnt, dass der Mittelsohlenkörper 10 einen umlaufenden Wulst 50 aufweist, welcher gegenüber der Oberfläche 42 in Richtung gegen oben absteht. Dieser dient einerseits zur Befestigung der Mittelsohle 12 an einem Schaft 56 und andererseits ist in der von der Oberfläche 42 und dem Wulst 50 begrenzten Vertiefung die oben genannte Abdeckung 52 angeordnet.At this point, it should be mentioned that the
Das Fersenweichteil ist vorzugsweise aus einem offenporigen Polyurethan-Elastomer-Schaum (PUR Shore 30 C) und der Mittelsohlenkörper 10 aus einem Polyurethan-Elastomer (PUR Shore 58 C) oder einem Ethylenvinylacetat (EVA) hergestellt; dies gilt für alle gezeigten Ausführungsformen.The soft heel part is preferably made of an open-pore polyurethane elastomer foam (PUR Shore 30 C) and the
Die elastisch verformbare Abdeckung 52 für den Ventilationskanal 30 ist vorzugsweise durch eine Innensohle 54 gebildet, welche auf die oben liegende Oberfläche 42 des Mittelsohlenkörpers 10 aufgelegt ist und allseitig bis zum Wulst 50 bzw. dem am Mittelsohlenkörper 10 befestigten und am Wulst 50 anliegenden Schaft sich erstreckt.The elastically deformable cover 52 for the
Die in
Eine weitere Ausbildungsform der Innensohle 54 ist in
Die Stützelemente 60 beziehungsweise die Stützbänder 62 bilden somit eine elastisch nachgiebige Stützschicht 64 für die Trägerschicht 58.The
Bei der in
In der
Ein Ventilationseinsatzelement 68, welches in der
Im Bogenabschnitt 72, welcher im integrierten Zustand im hinteren Abschnitt 14 des Fersenbereichs 16 zu liegen kommt, stehen vom äusseren Wandteil 80 in Richtung gegen die Schuhbodeninnenseite 18 und in Richtung gegen die Schuhbodenaussenseite 20 je ein Lufteintrittrohrstummel 82 ab. Diese sind mit dem Kanalstammabschnitten 38' strömungsverbunden und ihre aussen liegenden freien Enden bilden die Lufteintrittöffnungen 22.In the
Entsprechend stehen im Mittelfussbereich 24 und Ballen-Zehenbereich 26 vom äusseren Wandteil 80, in Richtung gegen aussen, Luftaustrittrohrstummel 84 ab. Auch diese sind mit dem zugeordneten Kanalstammabschnitt 38' strömungsverbunden, bilden die Kanalastabschnitte 40 und mit ihren freien Enden die Luftaustrittöffnungen 28.Accordingly, in the
Das Ventilationseinsatzelement 68 wird in bevorzugter Weise aus TPU Shore 85 A im Spritzgiessverfahren herstellt.The
Das Verstärkungselement 86, welches ebenfalls vorzugsweise im Spritzgiessverfahren hergestellt ist, weist einen oben liegenden, zungenförmigen, plattenartigen Tragteil 88 und einen von diesem, in Richtung gegen unten vorstehenden, V-förmigen Stützteil 90 auf. Sowohl das Tragteil 88 als auch das Stützteil 90 sind doppelwandig ausgebildet, wobei die beiden Wände jeweils über Rippen 92 miteinander fest verbunden sind. Das Tragteil 82 liegt im in den Mittelsohlenkörper 10 integrierten Zustand nahe bei der Oberfläche 42, wie dies der Mittelsohlenkörper 10 in
Das Stützteil 90 ist ebenfalls stabil ausgebildet, wobei der, in Laufrichtung L gesehen, hintere Schenkel 90' des Stützteils 90 entsprechend der Fersenausnehmung 46 geformt ist und sich dieser hintere Schenkel 90' mit dem vorderen Schenkel 90" beim, in Laufrichtung L gesehen, vorderen Ende der Fersenausnehmung 46 treffen und dort eine Kippkante 94 bilden.The
Das vorgefertigte Verstärkungselement 86 und das vorgefertigte Ventilationseinsatzelement 86 können in eine Kavität einer Spritzgussform für das Spritzen des Mittelsohlenkörpers 10 eingelegt werden, wobei nach dem Schliessen der Form, beispielsweise PUR Schor 58 C zum Giessen des Mittelsohlenkörpers 10 eingespritzt wird. Dabei kann das Spritzgusswerkzeug Stützrippen für die Kanalwand 74 und in die Lufteintrittrohrstummel 82 sowie Luftaustrittrohrstummel 84 eingreifende Schieber aufweisen, um ein Zusammendrücken des Ventilationseinsatzelements 86 beim Spritzgiessen des Mittelsohlenkörpers 10 zu verhindern.The prefabricated reinforcing
In Folge der Explosionsdarstellung weist der in der
Weiter zeigt
Umfangsseitig wird die Innensohle 54 vom relativ hoch ausgebildeten Wulst 50 umgriffen. In bevorzugter Weise ist die Trägerschicht 58 der Innensohle 54 fussbettartig ausgebildet und ist der Dicke der Stützschicht 64 entsprechend angepasst. Weiter weist die Oberfläche 42 zwischen dem äusseren Wandteil 80 und dem Wulst 50 sowohl auf der Schuhbodeninnenseite 80 als auch auf der Schuhbodenseite 20 einen kontinuierlichen bandartigen Oberflächeteil 42' auf, so dass die Stützschicht 64 umlaufend entlang des Wulstes 50 über dem Verstärkungselement 86 einem breiten Mittelabschnitt über die gesamte Länge des Mittelsohlenkörpers 10 abgestützt ist.On the circumference, the insole 54 is encompassed by the relatively high-trained
Die
Im Fersenbereich 16 verläuft das flächige Verstärkungselement 86 im Mittelsohlenkörper 10 entlang der Fersenausnehmung 46 und im Mittelfussbereich 24 sowie in einem, in Laufrichtung L gesehen, hinteren Abschnitt des Ballen-Zehenbereichs 26 im Innern des Mittelsohlenkörpers 10 in einem Abstand unterhalb des Ventilationskanals 30. Da die Wandstärke des Mittelsohlenkörpers 10 zwischen der Fersenausnehmung 46 und der Oberfläche 42 im Fersenbereich 16 viel kleiner ist als im Mittelfussbereich 24 und Ballen-Zehenbereich 26 könnte der Einsatz des aus MBT-Gehgeräten bekannten Verstärkungselements 86 zu einer ungenügender Tiefe des Ventilationskanals 30 im Fersenabschnitt 32 führen. Dies geht besonders deutlich aus
Bei einem Schuhboden gemäss
Beim Gehen mit einem in den Figuren gezeigten und oben beschriebenen Schuhboden wird beim Auftreten mit dem Fersenbereich 16 einerseits das Fersenweichteil 48 zusammengedrückt, was Schläge auf den Körper des Benutztes stark reduziert, und andererseits auch die Abdeckung 52 im Fersenbereich 16 in Richtung auf den Mittelsohlenkörper 10 zu deformiert. Dies führt zu einer örtlichen Verengung des von der Mittelsohle 10 und der Abdeckung 52 bzw. dessen Trägerschicht 58 begrenzten, mit Luft gefüllten Querschnitts. In Folge des Abrollens auf dem Boden verlagert sich dieser verengte Querschnitt in Laufrichtung L über den Mittelfussbereich 24 hin in den Ballen-Zehenbereich 26 hinein. Dieses Wandern der Verengung vom Fersenbereich 16 in den Ballen-Zehenbereich 26 führt zu einem Ausstossen von Luft aus dem Ventilationskanal 30 durch die Luftaustrittöffnungen 38, während nach dem Abkippen um die Kippkante 94, bzw. die durch den Mittelsohlenkörper 10 beim vorderen Ende der Fersenausnehmung 46 gebildete Kippkante, die Abdeckung 52 bzw. Innensohle 54 im Fersenbereich 16 entlastet wird, was in Folge der Elastizität der Abdeckung 52 bzw. der Innensohle 54 hinter der Verengung wieder zu einer Erweiterung des Querschnitts führt, wodurch durch die Lufteintrittöffnungen 20 frische Luft in den Ventilationskanal 30 eingesogen wird. Beim Gehen wird somit auf einem rein mechanischen Prinzip Luft ventilationsartig durch die Mittelsohle 12 gefördert. Durch diese aufgewärmte Luft wird durch die Luftaustrittsöffnungen 28 ausgestossen während frische, kühle Luft durch die Lufteintrittsöffnungen 22 eingesaugt wird.When walking with a shoe bottom shown in the figures and described above is on the one hand the
Ist die Abdeckung 52 bzw. Innensohle 54 luftdurchlässig ausgebildet, wird weiter gegen den Fuss des Benutzers entsprechend kühle Luft gedrängt.If the cover 52 or insole 54 is permeable to air, cool air is further forced against the foot of the user.
Claims (13)
Priority Applications (6)
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EP08014825A EP2156762A1 (en) | 2008-08-21 | 2008-08-21 | Shoe sole with air ventilation |
US13/058,435 US20110154693A1 (en) | 2008-08-21 | 2009-08-17 | Air-ventilated shoe sole |
JP2011523345A JP2012500071A (en) | 2008-08-21 | 2009-08-17 | Air ventilated shoe sole |
KR1020117006295A KR20110058823A (en) | 2008-08-21 | 2009-08-17 | Air-ventilated shoe sole |
PCT/EP2009/005959 WO2010020391A1 (en) | 2008-08-21 | 2009-08-17 | Air-ventilated shoe sole |
CN2009801327785A CN102131416A (en) | 2008-08-21 | 2009-08-17 | Air-ventilated shoe sole |
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EP08014825A EP2156762A1 (en) | 2008-08-21 | 2008-08-21 | Shoe sole with air ventilation |
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- 2008-08-21 EP EP08014825A patent/EP2156762A1/en not_active Withdrawn
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2009
- 2009-08-17 KR KR1020117006295A patent/KR20110058823A/en not_active Application Discontinuation
- 2009-08-17 US US13/058,435 patent/US20110154693A1/en not_active Abandoned
- 2009-08-17 WO PCT/EP2009/005959 patent/WO2010020391A1/en active Application Filing
- 2009-08-17 JP JP2011523345A patent/JP2012500071A/en active Pending
- 2009-08-17 CN CN2009801327785A patent/CN102131416A/en active Pending
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2286685A1 (en) * | 2009-08-20 | 2011-02-23 | Masai Marketing & Trading AG | Shoe sole with air ventilation |
WO2011020559A1 (en) * | 2009-08-20 | 2011-02-24 | Masai Marketing & Trading Ag | Air-ventilated shoe sole |
EP2305057A1 (en) * | 2009-10-02 | 2011-04-06 | Masai Marketing & Trading AG | Walker base |
WO2011038805A1 (en) * | 2009-10-02 | 2011-04-07 | Masai Marketing & Trading Ag | Walking device bottom |
WO2011103945A1 (en) | 2010-02-23 | 2011-09-01 | Masai Marketing & Trading Ag | Shoe sole having air circulation |
US9003677B2 (en) | 2010-04-20 | 2015-04-14 | Crocs, Inc. | System and method for toning footwear |
WO2012000008A1 (en) * | 2010-07-01 | 2012-01-05 | Kurt Hilgarth | Breathable shoe sole and shoe having such a shoe sole |
CN105167321A (en) * | 2015-09-02 | 2015-12-23 | 福建鸿星尔克体育用品有限公司 | Bionic functional soles and running shoes |
IT201800006257A1 (en) * | 2018-06-12 | 2019-12-12 | Sole for footwear |
Also Published As
Publication number | Publication date |
---|---|
KR20110058823A (en) | 2011-06-01 |
JP2012500071A (en) | 2012-01-05 |
CN102131416A (en) | 2011-07-20 |
WO2010020391A1 (en) | 2010-02-25 |
US20110154693A1 (en) | 2011-06-30 |
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