WO2022189449A1 - Sohle mit gewölbter elastischer platte - Google Patents
Sohle mit gewölbter elastischer platte Download PDFInfo
- Publication number
- WO2022189449A1 WO2022189449A1 PCT/EP2022/055930 EP2022055930W WO2022189449A1 WO 2022189449 A1 WO2022189449 A1 WO 2022189449A1 EP 2022055930 W EP2022055930 W EP 2022055930W WO 2022189449 A1 WO2022189449 A1 WO 2022189449A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- midsole
- curvature
- bulge
- longitudinal direction
- curved
- Prior art date
Links
- 210000004744 fore-foot Anatomy 0.000 claims abstract description 38
- 210000000452 mid-foot Anatomy 0.000 claims abstract description 35
- 238000005096 rolling process Methods 0.000 claims abstract description 19
- 238000013016 damping Methods 0.000 claims description 14
- 210000002683 foot Anatomy 0.000 claims description 12
- 210000000878 metatarsophalangeal joint Anatomy 0.000 claims description 9
- 210000001872 metatarsal bone Anatomy 0.000 claims 1
- 239000000463 material Substances 0.000 description 10
- 239000002861 polymer material Substances 0.000 description 10
- 238000005452 bending Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000006260 foam Substances 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 210000003371 toe Anatomy 0.000 description 4
- 229920002614 Polyether block amide Polymers 0.000 description 3
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 3
- 229920005983 Infinergy® Polymers 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000013001 point bending Methods 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 241000531908 Aramides Species 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 235000010980 cellulose Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- AIXMJTYHQHQJLU-UHFFFAOYSA-N chembl210858 Chemical compound O1C(CC(=O)OC)CC(C=2C=CC(O)=CC=2)=N1 AIXMJTYHQHQJLU-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/06—Running shoes; Track shoes
-
- 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
-
- 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
- A43B13/185—Elasticated plates sandwiched between two interlocking components, e.g. thrustors
-
- 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
- A43B13/02—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
- 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
-
- 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
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/32—Footwear with health or hygienic arrangements with shock-absorbing means
Definitions
- the present invention relates to a sole with a curved elastic plate for a running shoe. State of the art
- Midsoles with elastic plates are known from the prior art in order to reduce the effort exerted by the runner when running, or to delay the tiring of the runner. These panels are typically stiffer than the rest of the midsole, which is typically formed from a foamed polymeric material. Such plates are arranged in the forefoot area and optionally in the midfoot area. If the runner shifts his weight in the running direction during the rolling process, ie in the direction of the tip of the sole, the plate creates a leverage effect. The force directed towards the ground by the runner's toes in the forefoot area is converted into a force directed against the ground by the plate in the heel area, which supports the push-off process.
- elastic plates are bent in the direction of the ground and thus tensioned when running during the stepping and rolling process. Due to the elastic properties of the plate, it returns to its original flat shape when the foot pushes off the ground, which supports the push-off and saves energy.
- the general object of the present invention to further develop the prior art in the field of soles for running shoes and preferably to overcome the disadvantages of the prior art in whole or in part.
- a sole is provided which allows a higher proportion of the forces acting on the sole when walking to be used for the impression than is the case with the soles known in the prior art.
- the general object is achieved by a sole for a running shoe according to claim 1.
- the sole has a sole tip and a heel edge, as well as a midsole with a base surface delimiting the midsole counter to the vertical direction of the midsole and a surface delimiting the midsole in the vertical direction.
- the midsole has a heel area (FB), a midfoot area (MFB) and a forefoot area (FFB) in the longitudinal direction. It goes without saying that the midfoot area is longitudinally arranged directly between the forefoot area and the heel area.
- the midsole also has an elastic, in particular flexible, plate which extends at least from the forefoot area into the midfoot area and optionally to the heel area.
- the elastic plate has a first bulge with an apex, which is curved along the longitudinal direction of the midsole in the direction of the surface of the midsole.
- the elastic plate, in particular the first bulge is designed in such a way that the first bulge is elastically bent in the direction of the base surface by the forces acting during running when stepping and/or rolling and the bulge returns to its original shape when the impression is taken returns. In other words, the bulge is flattened upon stepping.
- the first arch can be bent in the direction of the base area.
- This bending is not limited to only bending in the vertical direction, but can also occur at least partially in or against the longitudinal direction. This effect is also caused by the weight of the wearer when stepping. This tightens the plate. Since the plate is elastic, it returns to its original shape when the sole takes off the ground, which supports the push-off process and reduces the effort of the runner, so that the runner tires less quickly.
- the elastic plate in the forefoot area and/or in the midfoot area has a first bulge with an apex that is curved along the longitudinal direction of the midsole in the direction of the base area of the midsole.
- the elastic plate is designed in such a way that the first curvature is elastically bent in the direction of the surface by the forces acting during running when stepping and/or rolling and the first curvature returns to its original shape when the impression is taken.
- the original shape refers to the plate in the state before the sole came into contact with the ground, or the unloaded state.
- the base of the midsole acts like a tendon in a bow, i.e. it is stretched when the arch is compressed and stores additional energy, which leads to contraction when the plate is relieved and bends the arch back to its original position.
- the longitudinal direction L of the sole is described by an axis from the heel area to the forefoot area and thus extends from the heel edge to the tip of the sole along the longitudinal axis of the sole.
- the transverse direction Q of the sole is transverse to the longitudinal axis and essentially parallel to the underside of the sole, or essentially parallel to the ground in the operative state. Thus, the transverse direction runs along a transverse axis of the midsole.
- the vertical direction or vertical direction V denotes a direction from the underside of the sole in the direction of the insole, or in the operative state in the direction of the foot of the wearer, and thus runs along a vertical axis of the sole or midsole.
- the lateral side of the sole is the outer boundary of the sole, which when worn rests on the outer instep of the wearer's foot.
- the medial side of the sole or the midsole designates the outer inner boundary of the sole, which is arranged opposite the lateral side. In the case of a pair of running shoes, the medial sides of the two running shoes thus point towards one another when worn and the lateral sides point away from one another.
- the forefoot area extends, for example, from the tip of the sole in the opposite direction to the longitudinal direction to 30-45% of the total length of the midsole in the longitudinal direction.
- the heel area extends, for example, from the heel edge in the longitudinal direction to 20-30% of the total length of the midsole in the longitudinal direction.
- the midfoot area extends directly between the heel area and the forefoot area, so that the length in the longitudinal direction of the midfoot area makes up the remaining proportion of the total length, in particular 15-50% of the total length.
- the tip of the sole and the edge of the heel are the outermost limit of the sole in the longitudinal direction, or in the opposite direction.
- the base area and/or the surface can be curved in cross-section along a cross-sectional plane in the longitudinal direction of the midsole and transversely to the transverse direction of the midsole, in particular when walking convexly towards the ground. 5
- curvature curved along the longitudinal direction of the midsole toward the surface of the midsole means that the plate of as seen from the heel edge, increases along the longitudinal direction in the vertical direction of the sole up to the apex of the arch and then decreases in the vertical direction from the apex to the tip of the sole.
- a "curvature curved along the longitudinal direction of the midsole toward the base of the midsole” means that the plate, viewed from the heel edge, descends along the longitudinal direction in the vertical direction to the apex, and then rises from the apex to the tip of the sole in the vertical direction.
- first bulge a bulge
- second bulge a bulge
- third bulge a bulge
- fourth bulge a bulge that has a fourth bulge, as described here below, does not necessarily mean that a second and/or a third bulge must also be present.
- Embodiments are certainly disclosed and encompassed that have, for example, a first bulge and a fourth bulge as described herein, but no second bulge, for example.
- the first bulge extends continuously in the transverse direction from the medial side of the sole to the lateral side of the sole.
- the first bulge may be arranged only on the medial side or only on the lateral side of the sole.
- the first arch may drop vertically from the medial side along the lateral direction of the sole.
- the first bulge may fall vertically from the lateral side along the transverse direction of the sole.
- the plate can then have no curvature on the respective other side.
- the main channel can be designed in particular as a blind hole or blind hole.
- the first bulge in the course from the heel edge to the tip of the sole can first be seen as a curve with a clockwise curvature up to a first turning point, then as a curve with a counterclockwise curvature up to a second inflection point and then as a curve with a clockwise curvature.
- the plate can in some embodiments have a maximum of three times, preferably a maximum of twice the thickness, in particular a maximum of 15 times, in particular a maximum of the same thickness, in particular a maximum of 0.5 times the thickness as in other areas of the Plate.
- the elastic plate is typically inherently incompressible.
- the sole can comprise further components, such as an abrasion-resistant outsole, which is preferably firmly bonded to the base of the midsole and which can in particular have a profile to prevent slipping when walking, especially when pushing off.
- the sole can also have an insole attached to the surface of the midsole.
- the midsole comprises an elastic, in particular flexible, polymer material, preferably a polymer foam. This typically accounts for the majority of the weight and volume of the midsole.
- the midsole consists of the elastic plate and the elastic, in particular flexible, polymer material, preferably a polymer foam.
- the plate is typically more rigid than the elastic, in particular flexible, polymer material.
- Suitable elastic, in particular flexible, materials as material for the midsole are well known to those skilled in the art. For example, materials with a Young's modulus of approximately 0.0001 to 0.2 GPa, in particular 0.001 to 0.1 GPa, can be used, which in the context of the present invention can be regarded as an elastic or soft-elastic material.
- such materials may include polymeric foams.
- Polyurethane, in particular thermoplastic polyurethane (TPU) or expanded thermoplastic polyurethane (eTPU) polyamides, for example PA-11, PA-12, nylon,
- Polyether block amide PEBAX®
- PET polyethylene terephthalate
- PBT polybutylene terephthalate
- EVA ethylene-vinyl acetate copolymer
- the material of the elastic plate can be selected from thermoplastic polyurethane, polyolefin, in particular polyethylene and polypropylene, polyester, polyester elastomers, polyamide, polyether block amide, carbon and mixtures thereof.
- the elastic plate can also include reinforcing fibers in order to increase the rigidity and thus the energy that can be made available for the impression. These can be selected, for example, from linen, basalt, aramid, bamboo, hemp, cellulose, glass, palm, carbon fibers and mixtures thereof.
- the midsole and therefore in particular the elastic plate, has only a single bulge curved along the longitudinal direction of the midsole in the direction of the surface of the midsole.
- this can be subdivided in the transverse direction of the sole, in such embodiments there is no further curvature of the plate arranged longitudinally in front of or behind the curvature, which is curved along the longitudinal direction of the midsole in the direction of the surface of the midsole.
- this does not mean that there cannot be other bulges, which in Are curved towards the base. Since the runner's foot flexes primarily at the metatarsophalangeal joints, embodiments with a single such arch have been found to be optimal for assisting in the push off process.
- the midsole and therefore in particular the elastic plate in embodiments with a plate with a first curvature curved in the direction of the base area of the midsole can only have a single curvature curved along the longitudinal direction of the midsole in the direction of the base area of the midsole.
- this can be subdivided in the transverse direction of the sole, in such embodiments there is no further curvature of the plate arranged longitudinally in front of or behind the curvature, which is curved along the longitudinal direction of the midsole in the direction of the base of the midsole.
- this does not necessarily mean that further bulges that are curved in the direction of the surface cannot be present.
- the midsole, and therefore in particular the elastic plate has only one, or only two, bulges curved along the longitudinal direction of the midsole in the direction of the surface of the midsole.
- the midsole, and therefore in particular the elastic plate in embodiments with a plate with a first bulge curved towards the base of the midsole can only have two bulges curved along the longitudinal direction of the midsole in the direction of the base of the midsole.
- the midsole and therefore in particular the elastic plate, in the midfoot area and in the forefoot area has only a single bulge curved along the longitudinal direction of the midsole in the direction of the surface of the midsole.
- the arch in the heel area can in particular be a “fourth arch” as described here.
- Embodiments with a single such first arch have been found to be optimal for assisting in the push off process because the runner's foot flexes primarily at the metatarsophalangeal joints.
- the midsole and therefore in particular the elastic plate in embodiments with a plate with a first curvature curved in the direction of the base area of the midsole in the midfoot area and in the forefoot area can have only a single curvature along the longitudinal direction of the midsole in the direction of the base area of the midsole.
- the plate is arranged between the surface and the base of the midsole, in particular in the midsole.
- the midsole can be designed in one piece and/or in two pieces.
- the plate can completely separate an upper and a lower part of the midsole.
- the upper part and the lower part can be glued, welded or otherwise firmly bonded to the plate.
- the plate can extend in the longitudinal direction of the sole over at least 50%, in particular at least 75%, in particular at least 85%, in particular at least 90%, or even over 100% of the total length of the midsole.
- the plate can extend in the transverse direction of the sole over at least 50%, in particular at least 75%, in particular at least 85%, in particular at least 90%, or even over 100% of the total width of the midsole.
- the thickness of the plate is in the range from 0.5 mm to 3.0 mm, in particular from 0.8 mm to 1.2 mm.
- the thickness of the panel is not constant over the entire area of the panel, such that the panel is more rigid in some areas than in other areas.
- the midsole has a transversely extending main channel formed at least in part by the first arch curved toward the surface or toward the base. The plate thus forms at least part of a channel wall of the main channel in the area of the curvature.
- Such a main channel has the advantage that the bending of the bulge in the direction of the base area or in the direction of the surface is facilitated.
- the main channel is preferably empty and/or open on the lateral and medial sides. However, it is also possible that the main channel is filled with a material that is softer than the material of the main part of the midsole.
- the main channel in the lateral area of the midsole is preferably completely delimited by the midsole, with the exception of any openings on the lateral side and/or medial side.
- the main channel is completely bounded by the midsole in cross-section along a cross-sectional plane in the longitudinal direction (L) of the midsole and transverse to the transverse direction (Q) of the midsole.
- the channel wall can consequently be formed entirely by the midsole in the lateral region of the midsole.
- the main channel in the side view of the sole can therefore be described as a transverse opening in an otherwise preferably one-piece midsole.
- a channel is to be understood as meaning a recess which can typically be of tubular design.
- a duct is bounded in whole or in part by its duct walls, except at the side openings.
- the channels are empty.
- the channels can be open and continuous, ie a channel is not a blind hole in such embodiments.
- a channel, in particular all channels, of the midsole preferably extends continuously from the lateral side of the midsole to the medial side of the midsole.
- the channels, in particular the damping channels can run essentially parallel to one another.
- the total open area of the midsole ie the total part of the side surfaces of the channel openings, may be less than the total part of the closed area of the midsole, ie the total part of the outer surface of the midsole that has no channels.
- the channels are arranged one behind the other exclusively in the longitudinal direction, ie from the edge of the heel to the tip of the sole. This does not rule out the possibility that the channels can be arranged offset from one another in the vertical direction, but the channels are therefore neither wholly nor partially superimposed in the vertical direction. It will be appreciated by those skilled in the art that deformability of the ducts may include, for example, vertical merging of the duct walls and/or longitudinal shearing of the duct. Typically, the upper and lower channel walls can touch under the action of the forces occurring when running, so that the corresponding channel, in particular the corresponding damping channel, is deformed to the point of lateral closure.
- the main channel extends continuously in the transverse direction from the medial side of the midsole to the lateral side of the midsole and is preferably open on the medial side and lateral side.
- the open area of the main channel on the medial side and/or the lateral side of the sole is 2 cm 2 to 20 cm 2 , preferably between 7 cm 2 to 13 cm 2 .
- the first bulge is bell-shaped in cross-section along the longitudinal direction of the midsole and perpendicular to the transverse direction of the midsole5.
- Such a curvature has proven to be advantageous because the force occurring when rolling and stepping is not only efficiently absorbed in the vertical direction, but also against the longitudinal direction and is briefly stored by bending the curvature in the direction of the base area or in the direction of the surface can be. Thus, the impression is better supported.
- the first bulge, in particular the apex of the first bulge is arranged such that the first bulge, or its apex, is arranged below or longitudinally in front of the metatarsophalangeal joint(s) of the wearer in the operative state.
- the apex of the first curvature from the heel edge of the sole in the direction of the tip of the sole is arranged at 50% to 75%, in particular at 60% to 70%, of the total length in the longitudinal direction of the sole.
- the overall length of the sole means the lengthwise extension from the heel edge to the toe of the sole.
- the curvature is arranged in the area of the metatarsophalangeal joints, in particular below or in front of the metatarsophalangeal joints of the wearer.
- the wearer's foot it is possible for the wearer's foot to be analyzed and measured first and for the first arch to be arranged individually during manufacture.
- the first bulge at the apex in cross-section along the longitudinal direction and perpendicular to the transverse direction has an apex radius of 1 mm to 200 mm, in particular 5 mm to 50 mm, in particular 20 to 30 mm.
- the vertex radius describes the radius of the circle of curvature, i.e. the circle that best approximates the curve at the vertex.
- Such an apex radius increases the bending resistance of the first curvature, which means that more energy is available when the impression is taken.
- the elastic plate has one or more, in particular exactly two, flat sections arranged offset in the transverse direction to the first curvature.
- a planar section is generally a section of the elastic plate which, in particular along the longitudinal direction, does not have any curvature or is not bent, but is flat.
- the at least one planar section in Generally run substantially parallel to the surface and/or parallel to the base.
- the at least one planar section can generally only extend longitudinally and transversely, but have no gradient in the vertical direction.
- Such a planar section can on the one hand increase the stability when stepping on and on the other hand serve to attach the elastic polymer material, in particular by materially connecting the section to the elastic polymer material.
- the elastic plate has, in addition to the first curve curved towards the surface of the midsole, a second curve with an apex curved along the longitudinal direction of the midsole towards the base of the midsole.
- This second arch is arranged in the longitudinal direction between the first arch and the tip of the sole.
- the plate can be sinusoidal in the region of the first curvature and the second curvature.
- the second bulge is curved towards the base, i.e. the apex of the second bulge is arranged towards the base.
- Such a second curvature reduces the rigidity of the plate in the region of the curvature and thus, due to the arrangement of the second curvature, facilitates the bending of the first curvature during the stepping and rolling process, whereby the energy supporting the impression is increased.
- the second bulge has at its apex an apex radius in cross-section along the longitudinal direction and perpendicular to the transverse direction of 5 mm to 1000 mm, in particular from 5 mm to 300 mm.
- the elastic plate in addition to the first curvature curved in the direction of the surface of the midsole, has a curvature along the longitudinal direction of the Midsole third curvature curved towards the base of the midsole with an apex.
- the third arch is arranged in the longitudinal direction between the heel edge and the first arch.
- the plate In cross-section along the longitudinal direction and perpendicular to the transverse direction of the sole, in certain embodiments the plate may be sinusoidal in the region of the first concavity and the third concavity.
- the third bulge like the second bulge, is curved in the direction of the base area, ie the apex of the third bulge is arranged in the direction of the base area.
- Such a third curvature reduces the rigidity of the plate in the region of the curvature and thus, due to the arrangement of the second curvature, facilitates the bending of the first curvature during the stepping and rolling process, whereby the energy supporting the impression is increased.
- the third bulge has an apex radius of 5 mm to 1000 mm, in particular 5 to 300 mm, at its apex.
- the crest radius of the second curvature and the crest radius of the third curvature are the same.
- the crest radius of the second bulge and/or the crest radius of the third bulge is equal to or less than the crest radius of the first bulge.
- the distance in the longitudinal direction of the sole between the apex of the second curvature and the apex of the third curvature can be 30 mm to 175 mm, in particular 40 mm to 90 mm .
- the distance in the longitudinal direction of the sole between the apex of the second curvature and the apex of the third curvature can be 10% to 60%, in particular 13% to 30%, the total length of the sole in the longitudinal direction.
- the distance in the longitudinal direction of the sole between the apex of the first curvature and the apex of the second curvature can be 40 mm to 175 mm, in particular 60 mm to 132 mm.
- the distance in the longitudinal direction of the sole between the apex of the first curvature and the apex of the second curvature can be 13% to 60%, in particular 20% to 45%, of the total length of the sole in the longitudinal direction be.
- the elastic panel has a lower stiffness at the second bulge and/or at the third bulge than at the rest of the panel.
- a lower rigidity at the second bulge and/or at the third bulge can be achieved, for example, by the plate having a smaller thickness at the second bulge and/or at the third bulge than at the rest of the plate.
- a lower rigidity can be achieved through targeted selection of the respective apex radius of the apex of the second curvature and/or the third curvature.
- the rest of the plate in contrast to the second and/or the third curvature, can be reinforced with reinforcing fibers to increase rigidity.
- the apex of the first bulge is offset from the apex of the second bulge and/or from the apex of the third bulge in the vertical direction by 5 mm to 30 mm, in particular by 10 mm to 20 mm.
- the first curve curved in the direction of the surface of the midsole has a lateral-side curve curved along the longitudinal direction of the midsole in the direction of the surface of the midsole and a lateral-side curve that is separate therefrom and offset in the transverse direction and arranged along the longitudinal direction of the midsole in the direction of the surface of the midsole curved medial bulge.
- the first curvature is thus subdivided into a lateral and a medial curvature.
- Both the medial side and the lateral side curve are curved along the longitudinal direction of the midsole towards the surface of the midsole, as has already been described for the first curve.
- the medial side and the lateral side curvature are typically spatially separated from one another and/or moveable independently of one another.
- the medial side and the lateral side curvature can run identically along the longitudinal direction, i.e. they can have the same pitch in the longitudinal direction.
- the lateral bulge and the medial bulge are longitudinally unoffset from one another.
- Such embodiments have the advantage, among other things, that the first curvature is more flexible due to the subdivision in the transverse direction, which is advantageous depending on the running style of the wearer, since some runners roll more medially and others more laterally.
- the first curvature curved in the direction of the base area of the midsole can be a lateral-side curvature curved along the longitudinal direction of the midsole in the direction of the base area of the midsole and a separate medial-side curvature that is offset in the transverse direction and curved along the longitudinal direction of the midsole in the direction of the base area of the midsole have curvature.
- the first curvature is thus subdivided into a lateral and a medial curvature. Both the medial side and the lateral curvature is also curved along the longitudinal direction of the midsole in the direction of the base of the midsole, as has already been described for the first curvature.
- the medial side and the lateral side curvature are typically spatially separated from one another and/or moveable independently of one another.
- the medial side and the lateral side curvature can run identically along the longitudinal direction, ie they can have the same slope in the longitudinal direction.
- the lateral bulge and the medial bulge are longitudinally unoffset from one another.
- Such embodiments have the advantage, among other things, that the first curvature is more flexible due to the subdivision in the transverse direction, which is advantageous depending on the running style of the wearer, since some runners roll more medially and others more laterally.
- an intermediate curvature curved along the longitudinal direction of the midsole in the direction of the base of the midsole is arranged between the medial side curvature curved in the direction of the surface of the midsole and the lateral side curvature curved in the direction of the surface of the midsole.
- the intermediate curvature is curved in the direction of the base area of the midsole.
- the intermediate curvature can act as a spring and thus also support the impression. Therefore, during the stepping and rolling-off process, the medial and lateral bulges and the intermediate bulge are flexed such that they are moved toward each other in the vertical direction. They then return to their original shape when the impression is taken.
- the intermediate curvature progressing from the edge of the heel to the tip of the sole, can first be seen as a curve with a counterclockwise curvature up to a first turning point, then as a curve with a clockwise curvature up to a second point of inflection and then described as a curve with a counterclockwise curvature.
- a flat section is arranged in the transverse direction between the medial-side curvature, which is curved in the direction of the base area of the midsole, and the lateral-side curvature, which is curved in the direction of the base area of the midsole Base is arranged.
- Such a planar section can on the one hand increase the stability when stepping on and on the other hand serve to attach the elastic polymer material, in particular by materially connecting the section to the elastic polymer material.
- the first bulge, and optionally the second and/or the third bulge and/or the lateral side bulge and/or the medial side bulge is segmented or subdivided into bulge segments which are separate from one another and arranged offset in the transverse direction.
- Curved segments that are separate from one another can be moved and/or deformed, in particular bent, independently of one another.
- some, and in particular all, bulge segments have the same length, i.e. the same extension in the longitudinal direction L. It is possible that the bulge segments within the first bulge, however, have a different height, i.e. extension in the vertical direction or an identical height.
- Each of the curvature segments can have a width, ie an extension in the transverse direction, of 4 mm to 50 mm, in particular of 9 mm to 22 mm.
- the first bulge can include at least 3, in particular at least 4, in particular at least 5 such bulge segments.
- the first bulge preferably comprises 3 to 9, in particular 3-7, in particular 3-5, of such bulge segments.
- each arch segment is independently curved along the longitudinal direction toward the surface of the midsole or along the longitudinal direction toward the base of the midsole, independently of the other 5 arch segments.
- Preferably either all curve segments along the longitudinal direction can be curved in the direction of the surface of the midsole or all curve segments can be curved along the longitudinal direction in the direction of the base area of the midsole0.
- the first bulge includes an odd number n of bulge segments.
- at least (n+1)/2 arch segments are curved in the direction of the base area of the midsole and optionally (n ⁇ 1)/2
- Camber segments curved toward the surface of the midsole in the transverse direction Q, the curve segments curved in the direction of the base area of the midsole can be arranged alternating with the curve segments curved in the direction of the surface of the midsole.
- all of the arch segments of the first arch may be curved towards the base of the midsole and, in addition, a flat portion is arranged between all adjacent arch segments.
- the flat section can essentially run parallel to the surface and/or parallel to the base area. Thus, the section can only extend in the longitudinal direction and in the transverse direction, but have no gradient in the vertical direction.
- the first bulge it is possible for the first bulge to have five bulge segments. Of these five camber segments, three are towards the base of the midsole curved. These three bulge segments are a lateral side and a medial side bulge segment and a central bulge segment arranged in between. Between the central bulge segment and the lateral bulge segment, which are each curved in the direction of the base area of the midsole, there is a further bulge segment curved in the direction of the surface of the midsole or a flat section. Between the central bulge segment and the medial side bulge segment, which are each curved in the direction of the base area of the midsole, there is also another bulge segment curved in the direction of the surface of the midsole or another flat section.
- At least two bulge segments, and in particular all bulge segments are directly adjacent in the transverse direction.
- Such a gap can, for example, have a width of >0 mm to 1.5 mm, in particular 0.5 mm to 1.0 mm.
- a planar portion is located between two adjacent bulge segments.
- Such a planar section of the elastic plate can be arranged in particular along the longitudinal direction of the midsole essentially parallel to the surface and/or parallel to the base area.
- n-1 such flat sections each located between two adjacent bulge segments.
- the first arch it is possible for the first arch to have three arch segments, which are each curved in the direction of the base area of the midsole.
- the three Bulge segments are a lateral side bulge segment, a medial side bulge segment, and a central bulge segment positioned transversely therebetween.
- a flat section is arranged between the lateral side bulge segment and the central bulge segment and another flat section is arranged between the medial side bulge segment and the central bulge segment.
- the flat section can essentially run parallel to the surface and/or parallel to the base area.
- the section can only extend in the longitudinal direction and in the transverse direction, but have no gradient in the vertical direction.
- the elastic plate in the heel area has a fourth curvature with an apex that is curved along the longitudinal direction of the midsole in the direction of the surface of the midsole.
- the elastic plate is designed in such a way that the fourth curvature is elastically bent in the direction of the base area by the forces acting during running when stepping and/or rolling and the fourth curvature returns to its original shape when the foot is pushed off.
- the elastic plate in the heel area can have a fourth bulge with an apex, which is curved along the longitudinal direction of the midsole in the direction of the base area of the midsole.
- the elastic plate is designed in such a way that the fourth curvature is elastically bent in the direction of the surface by the forces acting during running when stepping and/or rolling and the fourth curvature returns to its original shape when the foot is pushed off.
- a further arch of this type is provided in the heel area, which also supports the impression and also has a damping effect.
- the fourth bulge can have the same features as have already been described above for the first bulge.
- the fourth arch can have a lateral arch curved along the longitudinal direction of the midsole in the direction of the base of the midsole and a separate medial arch that is offset in the transverse direction and curved along the longitudinal direction of the midsole in the direction of the base of the midsole.
- the fourth curvature is thus divided into a lateral and a medial curvature.
- Both the medial side and the lateral side curve are curved along the longitudinal direction of the midsole in the direction of the base area of the midsole, as has already been described for the fourth curve.
- the medial side and the lateral side curvature are typically spatially separated from one another and/or moveable independently of one another.
- the medial side and the lateral side curvature can run identically along the longitudinal direction, ie they can have the same slope in the longitudinal direction.
- the lateral bulge and the medial bulge are longitudinally unoffset from one another.
- Such embodiments have the advantage, among other things, that the fourth curvature is more flexible due to the subdivision in the transverse direction, which is advantageous depending on the running style of the wearer, since some runners appear and/or roll more on the medial side and others more on the lateral side.
- the fourth curve which is curved in the direction of the surface of the midsole, has a lateral-side curve that is curved along the longitudinal direction of the midsole in the direction of the surface of the midsole and a medial-side curve that is separate therefrom and offset in the transverse direction and is curved along the longitudinal direction of the midsole in the direction of the surface of the midsole buckle up.
- the fourth curvature is thus divided into a lateral and a medial curvature. Both the medial side and the lateral side curvature are along the longitudinal direction of the midsole in the direction of the Midsole surface curved, as already described for the fourth curve.
- the medial side and the lateral side curvature are typically spatially separated from one another and/or moveable independently of one another.
- the medial side and the lateral side curvature can run identically along the longitudinal direction, ie they can have the same slope in the longitudinal direction.
- the lateral bulge and the medial bulge are longitudinally unoffset from one another.
- Such embodiments have the advantage, among other things, that the fourth curvature is more flexible due to the subdivision in the transverse direction, which is advantageous depending on the running style of the wearer, since some runners appear and/or roll more on the medial side and others more on the lateral side.
- a flat section is arranged in the transverse direction between the medial-side curvature, which is curved in the direction of the base area of the midsole, and the lateral-side curvature, which is curved in the direction of the base area of the midsole Base is arranged.
- Such a planar section can on the one hand increase the stability when stepping on and on the other hand serve to attach the elastic polymer material, in particular by materially connecting the section to the elastic polymer material.
- the fourth dome is segmented into discrete and laterally staggered dome segments.
- Each of the arch segments of the fourth arch can have a width, i.e. an extension in the transverse direction, of 9 mm to 25 mm, in particular of 12 mm to 20 mm.
- the bulge segments of the fourth bulge have the same length, ie the same extension in the longitudinal direction L. It is possible that the However, bulge segments within the fourth bulge have a different height, ie have a different extent in the vertical direction.
- the fourth bulge can include at least 3, in particular at least 4, in particular at least 5 such bulge segments.
- the fourth bulge preferably comprises 3 to 9, in particular 3-7, in particular 3-5, of such bulge segments.
- each arch segment is independently curved along the longitudinal direction toward the surface of the midsole or along the longitudinal direction toward the base of the midsole, independently of the other arch segments.
- either all arch segments along the longitudinal direction can be curved in the direction of the surface of the midsole or all arch segments can be curved along the longitudinal direction in the direction of the base area of the midsole.
- the arch segments of an arch, in particular the first and/or the fourth arch are separated from one another by a gap.
- a gap can, for example, have a width of >0 mm to 1.5 mm, in particular 0.5 mm to 1.0 mm.
- Such a gap is typically designed to avoid friction between two adjacent dome segments.
- the fourth bulge includes an odd number n of bulge segments.
- at least (n+1)/2 arch segments are curved in the direction of the base area of the midsole and optionally (n ⁇ 1)/2 arch segments are curved in the direction of the surface of the midsole.
- the arch segments curved in the direction of the base area of the midsole can be arranged in the transverse direction Q in alternation with the arch segments curved in the direction of the surface of the midsole.
- the fourth arch it is possible for the fourth arch to have three arch segments, all of which are curved in the direction of the base area of the midsole. These three bulge segments are a lateral side and a medial side bulge segment and a central bulge segment arranged in between.
- the three curvature segments can be arranged directly adjacent to one another.
- At least two bulge segments, and in particular all bulge segments are directly adjacent in the transverse direction.
- Such a gap can, for example, have a width of >0 mm to 1.5 mm, in particular 0.5 mm to 1.0 mm.
- a gap is typically designed to avoid friction between two adjacent dome segments.
- a planar portion is located between two adjacent dome segments.
- Such a planar section of the elastic plate can be arranged in particular along the longitudinal direction of the midsole essentially parallel to the surface and/or parallel to the base area.
- the sole has only a first curve according to one of the embodiments described here and a fourth curve according to one of the embodiments described here.
- the sole does not include any further convexities.
- the first arch is preferably arranged in the forefoot area and5 optionally in the midfoot area
- the fourth arch is preferably arranged in the heel area and optionally in the midfoot area.
- the first vault and the fourth curvature can be offset in the longitudinal direction to the fourth curvature.
- a bulge-free section is thus arranged between the first bulge and the fourth bulge. This can have continuous holes, as described below.
- the resilient panel defines a plurality of through holes that extend vertically through the resilient panel.
- These continuous holes can be arranged in the heel area and/or in the forefoot area and/or in the midfoot area.
- the through holes are located outside of the first, second, third and/or fourth bulge.
- the such through-holes through-holes are arranged longitudinally in front of and/or behind the first, second, third and/or fourth bulge. Holes of this type increase the service life of the elastic plate, since cracks are avoided as a result.
- the elastic sheet has a flexural modulus, measured according to test method 1 described herein, from 53 GPa to 81 GPa, in particular from 60 GPa to 70 GPa.
- a flexural modulus provides a strong propulsion force in the running direction, but at the same time enables good damping.
- These values refer to a measurement of the elastic plate itself, ie without other sole materials such as polymer foam components or similar.
- test method 1 a 3-point bending test is carried out (for the 3-point bending test see https://en .wikipedia.org/wiki/Three-point_flexural_test and DIN EN ISO 1 78:2019).
- an elastic panel is placed with its base on two support pins that extend over the entire transverse direction of the elastic panel.
- the elastic plate used may typically be a size 10 shoe elastic plate and have a length of 262 mm.
- the two support pins are at a distance of 180 mm arranged to each other.
- Each support pin has a width (extent in the transverse direction of the sole unit during measurement) of 50 mm and has a rounded edge with a radius of curvature of 2 mm, which supports the elastic plate.
- a loading pin is then placed on the cover sheet at the point where the width of the resilient sheet, ie the transverse dimension, reaches its maximum.
- the loading pin has a width (extension in the transverse direction of the elastic plate during measurement) of 50.4 mm and a rounded semi-cylindrical edge that presses on the elastic plate with a diameter of 10 mm.
- the loading pin is longitudinally located between the two support pins.
- the front support pin, ie the support pin closer to the tip of the elastic plate, is longitudinally spaced 60 mm from the loading pin; and the rear support pin, ie the support pin located closer to the heel edge of the elastic plate, is longitudinally spaced 1-20 mm from the loading pin.
- the loading pin is preloaded with a force of 10 N (F 0 ) and then gradually loaded with a force that deflects the elastic plate, and the force (Fi ) required to move the elastic plate by 10 mm is measured to be deflected in the vertical direction (test speed: 50 mm/min).
- the midsole has a plurality of damping channels running in the transverse direction, in particular arranged one behind the other in the longitudinal direction.
- the cushioning channels have lateral openings in the lateral area of the midsole.
- the damping channels are vertical and/or horizontal in the longitudinal direction under the action of vertical and/or longitudinal forces occurring during running until the lateral openings are closed malleable. Such channels increase the cushioning of the sole when stepping on it.
- the damping channels are not blind holes but are continuous.
- the damping channels are preferably arranged in the heel area and optionally in the midfoot area and/or in the forefoot area.
- the upper and lower channel walls of a cushioning channel may touch under the forces of running.
- the damping channels each have a pentagonal, hexagonal and/or drop-shaped, in particular lanceolate, contour along the cross-sectional plane in the longitudinal direction of the midsole and perpendicular to the transverse direction of the midsole. It is also possible that one or more cushioning channels of the midsole have a different contour than other cushioning channels of the midsole. In particular, the midsole can have up to 5 cushioning channels with different contours.
- a drop-shaped contour describes a shape that is essentially characterized by an isosceles triangle and a segment of a circle connected to it. Those skilled in the art will understand that these contours also include shapes with rounded corners, i.e., for example, a rectangle with rounded corners.
- a teardrop-shaped contour is particularly preferred here, in particular when the part of the circular segment of the teardrop shape is oriented toward the base area of the sole that is directed toward the ground. In this way, a particularly large horizontal damping of forces acting in the horizontal direction when running can be achieved. Furthermore, a teardrop-shaped contour allows a particularly controlled closure of the channels, so that a swimming effect is avoided.
- the lateral and/or medial open area of a or each individual damping channel is smaller than the lateral and/or medial open area of the main channel.
- the cushioning channels are arranged one behind the other in the longitudinal direction from the heel edge to the tip of the sole and at least two or more cushioning channels are arranged offset from one another in the vertical direction.
- the cushioning channels are arranged in the lateral and/or medial area of the midsole in at least a first and a second horizontal plane. In this case, the first and second horizontal planes are offset vertically from one another.
- a significant improvement in the damping effect is achieved by arranging the damping channels in at least a first and a second horizontal plane.
- the cushioning is no longer limited to individual areas of the sole, but extends essentially over the entire midsole.
- a horizontal plane of the sole describes a plane which is aligned essentially parallel to the underside of the sole or essentially parallel to the ground. It is also understood that the horizontal plane can also be slightly curved. This can be the case, for example, when the sole, as is typical for running shoes, is slightly curved vertically upwards in the forefoot area and/or in the heel area.
- a further aspect of the invention relates to a running shoe comprising a sole according to one of the embodiments described here.
- a further aspect of the invention relates to an elastic plate according to one of the embodiments described here, in particular the embodiments of the first aspect of the invention.
- This aspect of the invention relates to an elastic panel as such. It is understood that a bulge curved or bent in the direction of the base corresponds in this case to a bulge curved or bent in the negative vertical direction and a bulge curved or bent in the direction of the surface in this case corresponds to a bulge curved or bent in the positive vertical direction.
- a further aspect of the invention relates to the use of an elastic plate according to one of the embodiments of the above aspect of the invention for a shoe or for a sole of a shoe.
- FIG. 1 schematically shows the principle of what is known from the prior art
- FIG. 2 shows a schematic side view of a running shoe with a sole according to the invention according to a further embodiment of the invention
- Figure 3 shows a cross section of a plate for a sole according to a
- FIG. 4 shows a schematic representation of a plate for a sole according to an embodiment of the invention
- FIG. 5 shows a schematic representation of a plate for a sole according to a further embodiment of the invention.
- FIG. 6 shows a schematic representation of a plate for a sole according to a further embodiment of the invention
- Figure 7a, b show schematically the principle of the sole according to an embodiment of the invention
- FIG. 8 shows a schematic representation of a plate for a sole according to a further embodiment of the invention
- FIG. 9 shows a schematic representation of a plate for a sole according to a further embodiment of the invention
- FIG. 10 shows a schematic representation of a plate for a sole according to a further embodiment of the invention.
- FIG. 11 schematically shows a representation of a plate for a sole according to a further embodiment of the invention.
- FIG. 12 shows a schematic representation of a plate for a sole according to a further embodiment of the invention.
- FIG. 13a,b show a schematic representation of the measurement of the flexural modulus according to test method 1.
- FIG. 1 shows the principle of energy conversion with a sole known from the prior art, comprising a flexible plate. If the runner shifts his weight in the running direction during the rolling process, ie in the direction of the tip of the sole, the plate creates a leverage effect. The force directed towards the ground by the runner's toes in the forefoot area is converted into a force directed against the ground by the plate in the heel area, which supports the push-off process.
- FIG. 2 shows a running shoe with a sole comprising a midsole 1, a sole tip 4 and a heel edge 5 according to an embodiment of the invention.
- the midsole is divided into a forefoot area VFB, a heel area FB and a midfoot area MFB arranged between them along the longitudinal direction L and has a base surface 3 delimiting the midsole counter to the vertical direction V of the midsole and a surface 2 delimiting the midsole in the vertical direction V.
- the midsole 1 has an elastic plate 6 which, viewed counter to the longitudinal direction, extends from the forefoot area VFB via the midfoot area MFB to the heel area FB.
- the sole has a first curvature 61 which, as illustrated, is curved in the direction of the surface 2 of the midsole and has an apex. In the embodiment shown, the first bulge 61 is bell-shaped.
- the apex is in the direction of the surface 2, or in the vertical direction V, arranged.
- the elastic plate 6, in particular the first bulge 61 is designed in such a way that the first bulge is elastically bent in the direction of the base area by the forces acting during running when stepping and/or rolling and the bulge returns to its original shape when the impression is taken ( see Figure 7).
- the first bulge 61 partially delimits or partially forms the main channel 7, which can generally directly adjoin the first bulge 61 counter to the vertical direction.
- the midsole 1 has cushioning channels 82 with a rounded cross section in the midfoot area and cushioning channels 81 with a hexagonal cross section in the heel area.
- Both the main channel 7 and the cushioning channels 81 and 82 extend continuously in the transverse direction from the medial side of the sole to the lateral side of the sole.
- the apex of the first curvature 61 is arranged at a length L1 of approximately 70% of the total length L of the sole.
- FIG 3 is a cross section along the longitudinal direction L and perpendicular to the transverse direction Q of a plate 6 is shown schematically, as in the embodiment of a inventive sole of Figure 2 is used.
- the plate 6 has a first bulge 61 which is curved along the longitudinal direction L of the midsole in the direction of the surface of the midsole, ie in the vertical direction V, and has an apex S-61.
- the plate has a second curvature 62 with an apex S-62, which is curved along the longitudinal direction L of the midsole in the direction of the base area of the midsole, ie counter to the vertical direction V.
- the second curvature 62 is arranged in the longitudinal direction L between the first curvature and the tip of the sole (not shown, cf. FIG. 2).
- a third curvature 63 with apex S-63 is provided, which is curved along the longitudinal direction L of the midsole in the direction of the base area of the midsole, ie counter to the vertical direction V.
- FIG. 4 shows a schematic perspective view of a plate 6 with the first curvature 61, as is provided in the sole of FIG.
- the first bulge 61 extends continuously in the transverse direction Q of the midsole and constantly in the vertical direction from the medial side MS of the sole to the lateral side LS of the sole.
- a schematic perspective view of a plate 6 with the first curvature 61 is shown in FIG.
- the first bulge 61 is only located on the medial side MS of the sole.
- the first curvature in the vertical direction V drops along the transverse direction Q of the sole.
- the plate can have no curvature on the lateral side LS.
- Figure 6 shows a schematic perspective view of a plate 6, the first curvature being a lateral curvature 61a curved along the longitudinal direction L of the midsole in the direction of the surface of the midsole and a separate one, offset in the transverse direction and arranged along the longitudinal direction of the midsole has a medial side curvature 61b curved in the direction of the surface of the midsole. Between the lateral curvature 61a and the medial curvature 61b Intermediate bulge 61c is provided, which is curved along the longitudinal direction of the midsole in the direction of the base of the midsole.
- the lateral curvature 61a and the medial curvature 61b are therefore curved in the vertical direction opposite to the intermediate curvature 61c, in particular complementary thereto.
- the medial side and the lateral side curvature have an identical course along the longitudinal direction. They have the same gradient in the longitudinal direction.
- FIG. 7 shows the functional principle of the sole according to the invention.
- FIG. 7a) shows the unloaded state. If the runner hits the ground with his sole, the first bulge 61 is bent in the direction of the base area 3 by the weight of the runner when stepping on and by the subsequent rolling of the foot ⁇ FIG. 7b) ⁇ . In other words, the first bulge 61 is flattened. Since the plate 6 is generally elastic, in particular elastic in bending, the curvature returns to its original shape according to FIG. 7a). This generates a force with a component in the running direction, which supports the push-off, which means that the runner can save energy and tire less quickly. 5 The main channel below the first bulge reinforces this effect. The main channel 7 can be narrowed when the impression is taken.
- FIG. 8 shows a schematic perspective view of a plate 6 with a first curvature 61'.
- this is curved along the longitudinal direction L of the midsole in the direction of the base area of the midsole.
- flat sections 64a′ and 64b′ are arranged offset in the transverse direction thereto.
- portions 64a' and 64b' are generally parallel to the base and surface of the midsole.
- the plate 6 in the heel area has an additional, fourth curvature 5 65 ′, which in this case is identical to the first curvature 61 ′.
- the two flat sections 66a′ and 66b′ are also provided on the medial side and lateral side, offset in the transverse direction.
- the plate shown in Figure 8 consequently has only two bulges curved in the longitudinal direction of the midsole in the direction of the base area of the midsole, the first bulge 61' and the fourth bulge 65'.
- the plate has only a single bulge in the forefoot area and in the midfoot area, which is curved along the longitudinal direction of the midsole in the direction of the base area.
- the first curvature consists of two separate curvatures that are separate from one another, namely the lateral curvature 61a' directed towards the base area when installed (i.e. as part of a sole, cf. Fig. 2) and the medial curvature 61 directed towards the base area b'.
- the flat section 64c' is arranged between these two bulges.
- the fourth arch consists of two separate arches that are separate from one another, namely the lateral arch 65a' directed towards the base when installed (i.e. as part of a sole, see FIG. 2) and the medial arch directed towards the base 65b'.
- the flat section 66c' is arranged between these two bulges.
- FIG. 6 A schematic perspective view of an elastic plate 6 is shown in FIG. Although the midsole is not shown, the observer would look at the base of the sole in the present representation, ie that side of the plate 6 is shown which faces the ground when worn.
- the elastic plate 60 has the first arch 61′ in the forefoot area and in the midfoot area and the fourth arch 65′ in the midfoot area and in the heel area, which are arranged one behind the other and spaced apart from one another along the longitudinal direction, ie separately from one another.
- the first bulge 61' is segmented into 5 bulge segments 61 1 ', 61 2', 613', 614' and 61 5' which are separate from one another.
- the curvature segments 5 are each separated from one another by a gap.
- the first bulge 61 'and all bulge segments 61 1' to 61 5 'along the longitudinal direction in the direction of Base of the sole (not shown, cf. Fig. 2) is curved.
- the impression and the stability can be better controlled by the segmentation, since, for example, in the case of a runner with a relatively large medial-side weight distribution, the first three medial-side curvature segments can specifically deform elastically.
- the fourth dome 65' is segmented into a total of three dome segments 651', 652' and 653'. Like the first arch 61', the fourth arch and all arch segments 651', 652' and 653' are also curved along the longitudinal direction in the direction of the base of the sole.
- the elastic plate 6 defines a plurality of through holes 671', 672' and 673' (for the sake of clarity only these three holes are numbered). All of these holes extend in the vertical direction V through the elastic plate. However, this does not mean that these holes must be present as hollow elements in the sole. In some embodiments it is generally possible for the material of the midsole, eg a polymer foam, to fill these holes, in particular completely.
- the through-holes 671' to 673' are each arranged longitudinally in front of and/or behind one of the bulges, eg the first bulge 61' and/or the fourth bulge 65'.
- the through hole 671 is located in the forefoot area in front of the first arch 61', the through hole 672' in the midfoot area in front of the fourth arch 65' and behind the first arch 61' and the through hole 673' in the heel area behind the fourth arch 65' .
- 1 is a schematic perspective view of an elastic plate 6 is shown. Although the midsole is not shown, the observer would look at the base of the sole in the present representation, ie that side of the plate 6 is shown which faces the ground when worn.
- the elastic plate 6 has the first arch 61′ in the forefoot area and in the midfoot area and the fourth arch 65′ in the midfoot area and in the heel area, which are arranged one behind the other and spaced apart from one another along the longitudinal direction, ie separately from one another.
- the first bulge 61' is separated from one another in FIG Bulge segments 61 1', 61 2', 61 3', 621' and 622'.
- Three arching segments 61 1 ', 61 2' and 61 3' are curved like those in FIG. 10 along the longitudinal direction in the direction of the base area of the sole.
- the other two arch segments 621' and 622' are curved along the longitudinal direction in the opposite direction, namely in the direction of the surface of the sole.
- Curve segment 61 1 ' forms a medial-side curve segment, curve segment 613' a lateral-side curve segment and curve segment 61 2' a central curve segment arranged in between.
- the curvature segment 621' is arranged between the medial-side curvature segment 61 1 ′ and the central curvature segment 61 2 ′.
- the bulge segment 622' is arranged between the lateral-side bulge segment 613' and the central bulge segment 612'.
- the fourth bulge 65' is segmented into a total of three bulge segments 651', 652' and 661'.
- the medial-side arch segment 651' and the lateral-side arch segment 652' are curved along the longitudinal direction toward the base of the sole.
- the third arch segment 661' arranged between these two arch segments is curved in the opposite direction, namely towards the surface of the sole.
- Figure 1 2 shows a further perspective view of a further elastic plate 6 is shown.
- the first arch 5 has arch segments 611', 612', 613', which are curved along the longitudinal direction towards the base of the sole.
- the first curvature points in contrast, the other two curvature segments 621' and 622' are curved along the longitudinal direction in the opposite direction, namely in the direction of the surface of the sole.
- planar sections can also be provided, ie sections which run essentially parallel to the base area and/or to the surface 5 of the sole.
- FIGS. 13a and b show how the flexural modulus can be determined according to test method 1.
- Two supporting pins are arranged at a distance of 180 mm from each other and touch the elastic plate.
- a loading pin is arranged between the two support pins, which is at a distance of 60 mm from the front support pin and at a distance of 120 mm from the rear support pin along the longitudinal direction. As can be seen from FIG. 13a, the loading pin is positioned at that point at which the elastic plate has the greatest extent in the transverse direction or reaches its maximum.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22710411.4A EP4304408A1 (de) | 2021-03-10 | 2022-03-08 | Sohle mit gewölbter elastischer platte |
US18/279,934 US20240138513A1 (en) | 2021-03-10 | 2022-03-08 | Sole comprising a curved elastic plate |
CN202280022832.6A CN117042647A (zh) | 2021-03-10 | 2022-03-08 | 带有拱形的弹性板的鞋底 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00260/21A CH718419A2 (de) | 2021-03-10 | 2021-03-10 | Sohle mit gewölbter elastischer Platte. |
CH00260/21 | 2021-03-10 | ||
CH070364/2021 | 2021-10-08 | ||
CH70364/21A CH718399A1 (de) | 2021-03-10 | 2021-10-08 | Sohle mit gewölbter elastischer Platte. |
Publications (1)
Publication Number | Publication Date |
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WO2022189449A1 true WO2022189449A1 (de) | 2022-09-15 |
Family
ID=83225860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/055930 WO2022189449A1 (de) | 2021-03-10 | 2022-03-08 | Sohle mit gewölbter elastischer platte |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240138513A1 (de) |
EP (1) | EP4304408A1 (de) |
CN (1) | CN117042647A (de) |
CH (1) | CH718419A2 (de) |
WO (1) | WO2022189449A1 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0990397A1 (de) * | 1998-10-02 | 2000-04-05 | Mizuno Corporation | Entwurf und Aufbau von der Zwischensohle eines Athletikschuhs |
US6205681B1 (en) * | 1998-06-08 | 2001-03-27 | Mizuno Corporation | Athletic shoe midsole design and construction |
US20160029741A1 (en) * | 2014-07-30 | 2016-02-04 | Nike, Inc. | Article Of Footwear With Banking Midsole With Embedded Resilient Plate |
US20170354200A1 (en) * | 2016-06-14 | 2017-12-14 | Nike, Inc. | Sole structure for an article of footwear having longitudinal extending bridge portions with an interwoven stiffness controlling device |
US20180116335A1 (en) * | 2015-05-04 | 2018-05-03 | Nike, Inc. | Footwear Sole Structure Including a Spring Plate |
-
2021
- 2021-03-10 CH CH00260/21A patent/CH718419A2/de unknown
-
2022
- 2022-03-08 US US18/279,934 patent/US20240138513A1/en active Pending
- 2022-03-08 EP EP22710411.4A patent/EP4304408A1/de active Pending
- 2022-03-08 WO PCT/EP2022/055930 patent/WO2022189449A1/de active Application Filing
- 2022-03-08 CN CN202280022832.6A patent/CN117042647A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6205681B1 (en) * | 1998-06-08 | 2001-03-27 | Mizuno Corporation | Athletic shoe midsole design and construction |
EP0990397A1 (de) * | 1998-10-02 | 2000-04-05 | Mizuno Corporation | Entwurf und Aufbau von der Zwischensohle eines Athletikschuhs |
US20160029741A1 (en) * | 2014-07-30 | 2016-02-04 | Nike, Inc. | Article Of Footwear With Banking Midsole With Embedded Resilient Plate |
US20180116335A1 (en) * | 2015-05-04 | 2018-05-03 | Nike, Inc. | Footwear Sole Structure Including a Spring Plate |
US20170354200A1 (en) * | 2016-06-14 | 2017-12-14 | Nike, Inc. | Sole structure for an article of footwear having longitudinal extending bridge portions with an interwoven stiffness controlling device |
Also Published As
Publication number | Publication date |
---|---|
EP4304408A1 (de) | 2024-01-17 |
US20240138513A1 (en) | 2024-05-02 |
CN117042647A (zh) | 2023-11-10 |
CH718419A2 (de) | 2022-09-15 |
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