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EP3345499B1 - Chaussure comprenant un dispositif de pompe à air ayant un élément de ressort entourant un soufflet - Google Patents

Chaussure comprenant un dispositif de pompe à air ayant un élément de ressort entourant un soufflet Download PDF

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Publication number
EP3345499B1
EP3345499B1 EP17150718.9A EP17150718A EP3345499B1 EP 3345499 B1 EP3345499 B1 EP 3345499B1 EP 17150718 A EP17150718 A EP 17150718A EP 3345499 B1 EP3345499 B1 EP 3345499B1
Authority
EP
European Patent Office
Prior art keywords
shoe
bellows
spring element
pressure plate
stabiliser
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.)
Active
Application number
EP17150718.9A
Other languages
German (de)
English (en)
Other versions
EP3345499A1 (fr
Inventor
Wilhelm Möhlmann
Jens Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atmos Airwalk AG
Original Assignee
Atmos Airwalk AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Atmos Airwalk AG filed Critical Atmos Airwalk AG
Priority to EP17150718.9A priority Critical patent/EP3345499B1/fr
Priority to US15/581,042 priority patent/US10064446B2/en
Priority to PCT/EP2017/076886 priority patent/WO2018127308A1/fr
Priority to CN201780082892.6A priority patent/CN110312446B/zh
Publication of EP3345499A1 publication Critical patent/EP3345499A1/fr
Application granted granted Critical
Publication of EP3345499B1 publication Critical patent/EP3345499B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • A43B7/081—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures the air being forced from outside
    • 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
    • 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
    • A43B13/20—Pneumatic soles filled with a compressible fluid, e.g. air, gas
    • 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
    • A43B13/20—Pneumatic soles filled with a compressible fluid, e.g. air, gas
    • A43B13/203—Pneumatic soles filled with a compressible fluid, e.g. air, gas provided with a pump or valve
    • 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
    • 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
    • A43B7/082—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures the air being expelled to the outside
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/181—Resiliency achieved by the structure of the sole
    • A43B13/183—Leaf springs
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—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
    • 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

Definitions

  • the invention relates to a shoe with a sole construction and with an air pump device for blowing air into the interior of the shoe, the air pump device comprising a bellows made of an elastic plastic material and formed in the sole construction and arranged in the heel region of the shoe and enclosing a cavity, a suction channel for transporting of air from a suction opening into the bellows and an air supply device formed in the sole construction for conveying air from the bellows into the interior of the shoe, wherein the air pump device has a V-shaped or U-shaped spring element encompassing the bellows, which is essentially Extends over the entire area of the heel area, an upper leg of the spring element comprising an upper pressure plate arranged above the bellows and under an insole of the sole construction and a lower leg of the spring element one below the bellows and above a la
  • the sole layer of the sole construction comprises a lower pressure plate, so that a connecting section of the spring element connecting the two legs is arranged in the sole construction next to the bellows
  • Shoes with a sole construction and with an air pump device formed in the sole construction in the heel region of the shoe for blowing air into the interior of the shoe, the air pump device including a bellows made of an elastic plastic material enclosing a cavity, an intake duct for transporting air from an intake opening into the Bellows and an air supply device formed in the sole construction for conveying air from the bellows into the interior of the shoe are, for example, from the publications EP 2 218 348 A1 and WO 2012/126489 A1 known.
  • the sole construction in the heel area can have a multilayer structure, an intermediate layer which contains the cavity being made of a material (for example soft polyurethane foam) which is supposed to be more elastic or compressible than the material of the outsole.
  • the cavity and the compressible plastic layers surrounding it form a bellows.
  • the air pump device is designed to alternately suck in air via the suction channel from outside the shoe into the hollow space of the bellows in response to a user's walking movement when relieving (lifting the shoe off the floor) and when under load (when the weight and weight of the User) to blow air from the bellows into the interior of the shoe via channels of an air supply device.
  • a first valve is arranged in the intake duct and is designed such that it only allows air to flow into the cavity from outside the sole construction.
  • a second valve is arranged in the air supply device, which is designed such that it only allows air to flow in the direction from the cavity to the channels.
  • the pumping effect is further enhanced by the fact that the outsole has a raised area on the outer tread in the area of the bellows, which area is pressed towards the upper part of the sole when the user's foot is loaded.
  • the midsole is stimulated between to arrange a hard outsole and another sole, the midsole should be made of a material that is more compressible (elastic / softer) than that of the outsole and that of the other sole.
  • a foldable elastic element in the heel area which in one embodiment consists of a folded leaf spring which comprises a support section arranged adjacent to the outsole and a swivel section arranged under the insole (ie the insole), the two sections being connected to one another along a fold section arranged transversely to the direction of travel at the front edge of the heel region. It is advantageous that the longevity and the production efficiency of the shoe can be improved considerably because the proposed foldable elastic element has a simple structure.
  • a rear-opening V-shaped elastic plastic insert with an upper and a lower element which can be plate-shaped, is provided in the midsole region of the heel, the upper and lower elements of the V-shaped plastic insert when loading the heel be brought closer to each other.
  • Elastic elongated bending elements in the form of plates or rods can be fastened to the mutually facing surfaces of the upper or the lower element in such a way that they extend obliquely in the direction of the respectively opposite lower or upper element, so that when the upper and lower element are bent and thus provide additional resistance to the compression of the V-shaped plastic insert.
  • the air pump device has a bellows made of an elastic plastic material and formed in the sole construction and arranged in the heel area of the shoe, a suction channel for transporting air from a suction opening in the bellows and an air supply device formed in the sole construction for conveying air from the bellows into the interior of the shoe.
  • the suction duct and / or the air supply device can have a plurality of lines (for example tubes or hoses) acting in parallel.
  • the intake duct and the air supply device can comprise a common line section which opens into the cavity.
  • the intake duct and the air supply device preferably comprise one-way valves which ensure the desired direction of air transport.
  • a “bellows” is to be understood functionally here as a device which encloses an air volume on all sides (with the exception of the openings to the intake duct and to the air supply device) and which expels air through at least one opening when the bellows is compressed and sucks in when expanding.
  • the bellows can be formed, for example, solely by the walls of the cavity or by a bladder (for example made of a soft, elastic plastic) introduced into the cavity.
  • the air pumping device of the shoe according to the invention has a V-shaped or U-shaped spring element encompassing the bellows, which extends essentially over the entire surface of the heel region.
  • An upper leg of the V-shaped or U-shaped spring element comprises an upper pressure plate arranged above the bellows and under an insole of the sole construction, and a lower leg of the V-shaped or U-shaped spring element comprises one below the bellows and above an outsole layer of the Lower pressure plate arranged in the sole construction, wherein a connecting section of the spring element connecting the two legs in the sole construction is arranged next to the bellows in a joint region of the shoe and / or in an edge region of the heel region adjacent to the joint region.
  • the term "V-shaped or U-shaped spring element" is not to be interpreted restrictively in such a way that the legs should always be exactly the same length and straight; they can also be of different lengths or slightly curved.
  • Arranging "over an outsole layer” is also intended to include arranging over one of a plurality of outsole layers or within an outsole layer.
  • the air pump device is arranged such that the V-shaped or U-shaped spring element is elastically deformed by compressing the pressure plates during a running movement when the sole construction is loaded by the weight of the wearer of the shoe, the deformation essentially at the connecting section or in the vicinity thereof takes place so that the pressure plates above and below the at least one bellows essentially maintain their shape and the bellows arranged between the pressure plates is compressed.
  • the air pump device with bellows, intake duct, air supply device and spring element is thus embedded in the sole construction (in preferred exemplary embodiments with the exception of a part of the intake duct which is led upwards out of the sole construction, preferably in or along the shaft, to an intake opening or a plurality of intake openings ).
  • This sole construction, in which the air pump device is embedded can for example be made from a single plastic material.
  • the sole construction preferably has a multilayer structure.
  • This multilayer structure preferably comprises at least one insole, at least one intermediate layer containing the bellows and the spring element made of a compressible material (midsole) and at least one outsole layer arranged underneath.
  • the "insole” should be understood here to mean any uppermost layer of sole between the interior of the shoe and the upper pressure plate.
  • the insole can be multi-layered.
  • the insole is to be viewed functionally as part of the sole construction, although it is is usually part of the upper in terms of shoe technology.
  • the connection between the insole and the upper can be of any design (e.g. pinched, sticky, stamped, welted or double-stitched).
  • the intermediate layer (midsole) and outsole layer are preferably made of different materials (which are each adapted to their different functions), but in one embodiment can also be made of the same material.
  • At least one stabilizer spring element preferably one stabilizer spring element each) is arranged on either side next to the bellows.
  • Each of the stabilizer spring elements is connected to the lateral edge regions of the upper and lower pressure plate in such a way that it is elastically compressed when the pressure plates are pressed together, the elasticity of the stabilizer spring elements arranged on both sides of the shoe being adjusted (dimensioned) so that they Compressing when the sole construction is loaded by the weight of the wearer of the shoe during a running movement is compressed approximately equally, so that rotation of the upper pressure plate relative to the lower pressure plate about an axis parallel to the longitudinal direction of the shoe is counteracted.
  • the solution according to the invention creates a shoe which enables a high air throughput with each step of a walking or running movement and a long service life even under heavy use (as occurs in particular with running shoes).
  • the solution according to the invention not only ensures faster and more complete resetting when the bellows expands; it also supports the compression of the bellows due to the areal distribution of the pressure force by means of the upper and lower pressure plates, which essentially retain their shape when pressed together.
  • the stabilizer spring elements stabilize the position of the foot during the compression of the sole construction in the heel area while running and reduces the risk of the foot bending off (distortion).
  • a preferred embodiment is characterized in that a support section is formed on the connecting section in the direction opposite to the legs, so that the spring element is Y-shaped, the support section in the joint area of the shoe up to a maximum of about 10 mm in front of a ball area in the Forefoot area protrudes. This stabilizes the position of the spring element in the sole construction and distributes the forces acting on the adjacent sole material when the spring element is deformed on the front edge of the spring element, so that there is less stress on the sole material and thus a longer service life of the shoe.
  • Each of the stabilizer spring elements is preferably connected in a torsion-resistant manner to lateral edge regions of the upper and lower pressure plate in such a way that relative movement of the upper and lower pressure plate in lateral directions is suppressed or at least hindered. This also helps to stabilize the position of the foot.
  • the stabilizer spring elements arranged on the two sides of the bellows are connected to one another via a web arranged at the rear edge of the heel region. This stabilizes the torsion-proof connection with the lateral edge areas.
  • the stabilizer spring elements preferably each comprise at least one V-shaped or U-shaped spring section, which is arranged in such a way that its legs approach when the stabilizer spring element is compressed.
  • each of the stabilizer spring elements consist only of a V- or U-shaped spring element, the upper leg of which is connected to the upper pressure plate and the lower leg of which is connected to the lower pressure plate.
  • Other embodiments can comprise webs arranged in a grid-like manner in a vertical plane, a plurality of pairs of such webs or web sections each forming V-shaped or U-shaped spring elements.
  • the lateral edge areas of the upper and lower pressure plate, with which the stabilizer spring elements are connected form contact surfaces for the upper and lower ends of the stabilizer spring elements.
  • the ends of the stabilizer spring elements which abut these edge regions have corresponding contact surfaces which are glued to the contact surfaces of the edge regions or are firmly connected in some other way.
  • the edge regions arranged on both sides of the lower pressure plate are preferably separated from the central region of the lower pressure plate arranged under the bellows by a gap open to the rear of the shoe, so that the two edge regions of the lower pressure plate form separate spring legs.
  • the middle area of the lower pressure plate arranged between the two gaps protrudes downward, so that the compression of the contact surfaces and thus the stabilizer spring elements only begins after the middle area of the lower pressure plate and the upper pressure plate have already been pressed together in a predetermined way. This enables a part of the bellows volume to be compressed even without the stabilizer spring elements acting, so that the bellows volume can be increased in part at the expense of stabilization.
  • the optimum between a bellows volume to be maximized (wide protrusion of the middle area) and sufficient stabilization of the foot (early onset of the effect of the spring elements due to a slight protrusion of the middle area) can be calculated on the basis of models or determined experimentally.
  • a preferred embodiment is characterized in that the stabilizer spring elements are detachably or exchangeably attached.
  • the stabilizer spring elements have a device for adjusting the spring force. Both embodiments allow adaptation to the body weight of the wearer of the shoe.
  • An advantageous development of the shoe according to the invention is characterized in that folds are formed in the side walls of the bellows on the open sides of the V- or U-shaped spring element.
  • the targeted arrangement of these folds enables a defined specification of the type of deformation of the bellows during its compression with a small wall thickness, which in turn enables a larger bellows volume.
  • the shoe according to the invention is preferably characterized in that the suction channel connected to the bellows has a minimum cross-sectional area of 3 mm 2 for transporting air from a suction opening into the bellows, and a minimum cross-sectional area of 4 mm 2 for shoe sizes from approximately 25 cm in length.
  • This minimum cross-section ensures a lower flow resistance when the air is sucked in and thus contributes to a faster and thus (against the background of a reset time limited by the step duration) extensive recovery during the expansion of the bellows.
  • the suction opening is preferably spanned with a dirt-repellent grille (for example plastic grille or mesh) and has an enlarged minimum area compared to the minimum cross-sectional area of the suction duct, in order to compensate for the increase in flow resistance caused by the dirt-repellent grille.
  • a dirt-repellent grille for example plastic grille or mesh
  • FIGS Figures 1 to 4 A first preferred exemplary embodiment of the shoe 1 according to the invention is shown in FIGS Figures 1 to 4 shown.
  • Figure 1 shows a schematic side view of the inside, Figure 3 a bottom view and Figure 4 a rear view of the shoe 1.
  • Figure 2 shows a separate view of the spring element 9 contained in the shoe and encompassing the bellows.
  • the shoe 1 comprises a sole construction and a shaft 2, an air pump device being provided for blowing fresh air into the interior of the shoe 1.
  • the fresh air is preferably sucked in from outside the shoe 1, but can also be sucked in - in an embodiment not shown here - at a location on the inside of the shaft 2 that is remote from the sole.
  • the air is preferably blown out through openings in the upper layer or layers of the sole construction, preferably in the region of the forefoot or toes.
  • the components of the air pump device, with the exception of being attached to an intake opening 6 subsequent sections of the intake duct are arranged within the sole construction.
  • the air pumping device in the Figures 1, 3 and 4th The illustrated shoe 1 comprises a bellows 4 which surrounds a cavity and is made of an elastic plastic material and is accommodated in a heel area 17 of the shoe 1.
  • the cavity enclosed by the plastic wall of the bellows 4 extends essentially over the entire length and a large part of the width of the heel region 17.
  • the bellows 4 is encompassed by a V-shaped spring element 9, which in the embodiment shown here is Y-shaped (see Figure 2 ).
  • the V-shaped spring element 9 has an upper leg 10 and a lower leg 11, which are connected to one another and to a support section 19 at a connecting section 14.
  • the position of the V-shaped spring element 9 within the sole construction of the shoe 1 is in Figure 1 shown.
  • the upper leg 10 of the V-shaped spring element 9 comprises an upper pressure plate 12 arranged above the bellows 4 Figures 1 to 4 Insole not shown) arranged.
  • additional sole layers can be arranged above the upper pressure plate and over the entire V-shaped spring element 9, for example intermediate layers between the V-shaped spring element 9 and the insole or cover layers above the insole.
  • the lower leg 11 comprises a lower pressure plate 13, which is arranged under the bellows 4 and over an outsole layer 16.
  • the outsole layer 16 can lie directly on the underside of the V-shaped spring element 9. However, it can also be provided that the lower leg 11 of the V-shaped spring element 9 is completely embedded in a midsole layer, on the underside of which the outsole layer is then applied. In yet another exemplary embodiment, the lower leg 11 of the V-shaped spring element 9 can also be completely embedded in the material of an outsole layer 16.
  • the lower pressure plate 13 of the lower leg 11 in three areas divided, which are each separated by a gap, namely into a central region 33, an edge region 24 arranged on the inside of the shoe, which is separated from the central region 33 by the gap 31, and one arranged on the outside of the shoe 1 Edge region 25, which is separated from the central region 33 by the gap 32.
  • the bellows 4 is located essentially between the central region 33 of the lower pressure plate 13 and the upper pressure plate 12.
  • a first stabilizer spring element 22 is arranged between the edge region 24 of the lower pressure plate 13 and an edge region of the upper pressure plate 12 arranged above it.
  • a second stabilizer spring element 23 is arranged between the edge region 25 of the lower pressure plate 13 and the edge region of the upper pressure plate 12 arranged above it.
  • the stabilizer spring elements 22 and 23 have contact surfaces on their underside which are fastened, for example glued, to corresponding contact surfaces 29 of the edge regions 24 and 25, respectively.
  • the upper sides of the stabilizer spring elements 22, 23 are fastened to the edge regions of the upper pressure plate 12.
  • the two stabilizer spring elements 22 and 23 are connected by means of a web 26.
  • the stabilizer spring elements 22, 23 have V-shaped or U-shaped spring sections 27, the legs of which approach when the stabilizer spring elements 22, 23 are vertically compressed.
  • the stabilizer spring elements 22, 23 oppose the compression a predetermined force that corresponds to their elasticity.
  • the elasticities of the stabilizer spring elements 22, 23 arranged on both sides of the shoe are set such that the stabilizer spring elements 22, 23 are compressed approximately equally when the sole structure is compressed by the weight of the wearer of the shoe 1 during a running movement, so that rotation of the upper pressure plate 12 with respect to the lower pressure plate 13 about an axis parallel to the longitudinal direction of the shoe 1 is counteracted.
  • each of the stabilizer spring elements 22, 23 with the associated lateral edge area 24, 25 of the lower pressure plate 13 and with the corresponding edge regions of the upper pressure plate 12 are connected in a torsion-proof manner such that a relative movement of the upper and the lower pressure plate in the lateral direction is suppressed or at least hindered.
  • the already mentioned rear web connection 26 also serves to stabilize the position of the stabilizer spring elements 22, 23. The compression of the stabilizer spring elements under load is closer in FIG Figure 8C shown, which will be discussed below.
  • the middle region 33 of the lower pressure plate 13 protrudes downward from the edge regions 24 and 25.
  • the heel region 17 when the heel region 17 is loaded, only the middle region 33 of the lower pressure plate 13 is initially loaded, so that it is pressed in the direction of the upper pressure plate 12 and the bellows 4 is compressed in the process. Then, when the middle area has been pushed up so far that it is flush with the edge areas 24 and 25, all three areas 24, 33, 25 are subsequently pressed in the direction of the upper pressure plate 12. This is discussed in more detail in connection with the Figures 8A to 8C received.
  • the V-shaped spring element 9 has a connecting section 14 which connects the upper leg 10 and the lower leg 11 to one another.
  • the V-shaped spring element 9 is deformed by compressing the pressure plates 13 and 12, this deformation taking place essentially at the connecting section 14 or in those regions of the legs 10 and 11 which are in the vicinity of the connecting section 14.
  • the pressure plates essentially maintain their shape, so that the pressure plates 12 and 13 press as far as possible over the top and bottom of the bellows 4.
  • the pressure plates 12 and 13 should not be deformed in those areas in which they act on the top or bottom of the bellows 4 in such a way that the bellows 4 can no longer be compressed over its entire horizontal extent. In particular, the pressure plates 12 should be pressed in at certain points and 13 can be avoided.
  • the V-shaped spring element 9 additionally has a support section 19 which serves to support and stabilize the position of the V-shaped spring element 9 within a sole construction, in particular within a soft intermediate layer of the sole construction.
  • the connecting section 14 is located in the joint area of the shoe and the support section 19 extends in the direction of the forefoot area 20, ending approximately 1 cm in front of the ball area 21.
  • the provision of the support section 19 reduces the load on the sole material due to the forces acting from the V-shaped spring element 9, so that the lifespan of the sole construction is extended.
  • the V-shaped spring element 9 is made of a resilient material, for example an elastic plastic material, in particular a thermoplastic elastic plastic material, for example a fiber-reinforced polyamide (for example nylon) or a polyether block amide (for example VESTAMID or PEBAX).
  • the V-shaped spring element is made of a carbon fiber reinforced composite material.
  • the plastic bladder enclosing the cavity of the bellows 4 is made, for example, of a polypropylene or a polyurethane.
  • the air pump device with bellows, V-shaped spring element 9, air supply device and intake duct is preferably embedded in a soft-elastic (compressible) plastic material of an intermediate layer of the sole construction (midsole 38).
  • the outsole layer 16 applied to the underside of the shoe is made of an abrasion-resistant plastic material.
  • the materials of the bellows 4, the V-shaped spring element 9 as well as the intermediate layer of the sole construction and the outsole layer 16 are matched to one another and bonded to one another in such a way that detachment of the materials at their interfaces is largely avoided even under heavy permanent stress.
  • the above-mentioned support section 19 serves to distribute the forces occurring in particular on the spring element 9.
  • the air pump device comprises an intake duct for transporting air from an intake opening 6 into the bellows 4 and an air supply device formed in the sole construction for conveying air from the bellows 4 into the interior of the shoe 1.
  • These ducts are shown in FIGS Figures 1, 3 and 4th not shown.
  • Figure 1 only the suction opening 6 can be seen, which is arranged above the sole construction on the shaft 2 of the shoe 1. This arrangement of the suction opening 6, which is higher than the sole, serves the purpose of reducing the likelihood of dirt and water being sucked from the running surface.
  • the suction opening 6 with an in Figure 1 indicated grid covers what serves to repel dirt particles.
  • a plastic bladder of the bellows 4 (also called “lung") is first provided and this is then inserted between the upper leg 10 and the lower leg 11 of the spring element 9, the stabilizer spring elements also being fastened.
  • the entire assembly is then overmolded with a flexible plastic material (which forms a midsole 38), after which the injection of further sole components (e.g. outsole layer) and the gluing of the shaft to the insole can follow.
  • a prefabricated air pump device composed of bellows, intake duct, air supply device, V-shaped or U-shaped spring element and stabilizer spring elements can also be glued or connected in another way to a prefabricated midsole or several prefabricated midsole parts, which is followed by the application of the outsole layer and the shaft can connect with the insole.
  • FIGS 5 and 6 schematically show an alternative embodiment of the essential components of the air pump device, namely a bellows 4 (in Figure 6 shown separately), an alternative embodiment of the V-shaped spring element 9 'and arranged between the legs of the spring element 9 stabilizer spring elements 22.
  • the support section adjoining the connecting section 14' is omitted.
  • the bellows 4 has an opening on its upper side, which is part of the intake duct 5, and a duct, which is part of the air supply device 7, on its front side.
  • Figure 5 it can be seen that the channel of the air supply device 7 is passed through an opening in the connecting section 14 'of the V-shaped spring element 9'.
  • the upper pressure plate 12 'of the spring element 9' also has a bore through which the intake duct 5 is passed.
  • FIGS. 7A to 7C show schematic longitudinal sectional views along the central axis of a shoe.
  • Figure 7A shows the unloaded shoe.
  • the bellows 4, which surrounds the cavity 3, is fully expanded.
  • the schematically illustrated inlet one-way valve 35 of the intake duct 5 is closed.
  • the schematically illustrated blow-out one-way valve 36 of the air supply device 7 is closed.
  • the air supply device 7 extends from the opening of the bellows 4 closed by the one-way valve 36 through a cavity or channel within the intermediate sole layer 38 to below the openings 37 in the insole 15.
  • Figure 7B shows the shoe in a state of loading the heel area, in which the bellows 4 is compressed.
  • the cavity 3 is compressed, as a result of which the pressure in the cavity 3 increases.
  • This keeps the inlet one-way valve 35 closed, but opens the blow-out one-way valve 36, whereupon air flows from the cavity 3 through the one-way valve 36 into the channels arranged in the intermediate layer 38 and continues therefrom through the openings 37 of the insole 15 into the interior 8 within the shaft 2 of the Shoe.
  • the air flow is indicated by the dashed arrows.
  • Figure 7B thus shows the state of the air being blown out into the shoe interior 8.
  • Figure 7C illustrates the expansion of the bellows 4 due to its own restoring forces, but above all due to the restoring forces caused by the V-shaped spring element 9, ie due to the restoration of the upper pressure plate 12 and the lower pressure plate 13 to their original positions.
  • the cavity 3 of the bellows 4 is enlarged, which results in a negative pressure in the cavity 3.
  • the blow-out one-way valve 36 of the air supply device 7 closes and the inlet one-way valve 35 of the intake duct 5 opens, as schematically shown in FIG Figure 7C is shown.
  • the intake duct 5 is guided upwards on the back of the shoe between the sole construction and the shaft 2 and has an in Figure 7C Intake opening 6, not shown, through which fresh air is drawn in from the outside.
  • FIGS. 8A to 8C illustrate three phases of the deformation of the air pump device, in particular the V-shaped spring element 9, the bellows 4 and the stabilizer spring elements 22, 23 during a running movement.
  • Figure 8A first shows the unloaded state in which the bellows 4 has its maximum expansion.
  • the bellows 4 is located between the upper pressure plate 12 'of the upper leg 10' and the central region 33 'of the lower pressure plate 13' of the lower leg 11 'of the V-shaped spring element 9'.
  • the middle area 33 'of the lower pressure plate 13' projects downward relative to the edge area 24 'of the lower pressure plate 13'.
  • the division of the lower pressure plate 13 of the V- or U-shaped spring element 9 into a central area 33 acting on the bellows 4 and two edge areas 24 and 25 acting on the stabilizer spring elements can also be omitted, in which case the stabilizer spring elements 22, 23 can be constructed in such a way that they first oppose a compression in a first section of the compression path with a relatively low force and this force increases continuously with further compression.
  • the V- or U-shaped spring element 9 can have several different material layers.
  • the spring element 9 and the stabilizer spring elements 22 and 23 can also be formed in one piece.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (11)

  1. Chaussure (1) comprenant une structure de semelle et un dispositif de pompe à air, destiné à insuffler de l'air dans l'espace intérieur (8) de la chaussure (1),
    le dispositif de pompe à air comportant
    un soufflet (4) en une matière plastique élastique conçu dans la structure de semelle, placé dans la zone du talon (17) de la chaussure (1), entourant une cavité (3),
    un conduit d'aspiration (5), destiné à transporter de l'air d'un orifice d'aspiration (6) dans le soufflet (4) et
    un dispositif d'amenage d'air (7) conçu dans la structure de semelle, destiné à retransférer de l'air à partir du soufflet (4) dans l'espace intérieur (8) de la chaussure,
    le dispositif de pompe à air comportant un élément à ressort (9 ; 9') en forme de V ou en forme de U, entourant le soufflet (4), qui s'étend sensiblement sur l'ensemble de la surface de la zone du talon (17), une branche supérieure (10 ; 10') de l'élément à ressort (9 ; 9') comprenant une plaque de pression (12 ; 12') supérieure, placée au-dessus du soufflet (4) et en-dessous d'une semelle intérieure (15) de la structure de semelle et une branche (11 ; 11') inférieure de l'élément à ressort (9 ; 9') comprenant une plaque de pression (13 ; 13') inférieure, placée en-dessous du soufflet (4) et au-dessus d'une couche de semelle d'usure (16) de la structure de semelle, de telle sorte qu'un segment de liaison (14 ; 14') de l'élément à ressort (9 ; 9') reliant les deux branches (10, 11 ; 10', 11') soit placé dans la structure de semelle à côté du soufflet (4), dans une zone d'articulation (18) de la chaussure (1) et/ou dans une zone de bordure de la zone du talon (17) qui est adjacente à la zone d'articulation (18) de la chaussure (1),
    le dispositif de pompe à air étant placé de telle sorte que pendant un déplacement en marche, lors d'une contrainte de la structure de semelle sous le poids du porteur de la chaussure (1), l'élément à ressort (9 ; 9') se déforme élastiquement, par écrasement des plaques de pression (12, 13 ; 12', 13'), la déformation s'effectuant essentiellement sur le segment de liaison (14 ; 14') ou à proximité de celui-ci, de sorte que les plaques de pression (12, 13 ; 12', 13') au-dessus et en dessous du soufflet (4) gardent sensiblement leur forme et que le soufflet (4) placé entre les plaques de pression (12, 13 ; 12', 13') soit comprimé,
    caractérisée
    en ce que de part et d'autre à côté du soufflet (4) est placé chaque fois au moins un élément à ressort stabilisateur (22, 23), chacun des éléments à ressort stabilisateurs (22, 23) étant relié avec des zones de bordure (24, 25) latérales des plaques de pression (12, 13 ; 12', 13') supérieure et inférieure, de telle sorte que lors de l'écrasement des plaques de pression (12, 13 ; 12', 13'), il puisse être élastiquement comprimé, l'élasticité des éléments à ressort stabilisateurs (22, 23) placés de part et d'autre de la chaussure étant réglée de telle sorte que lors de l'écrasement par contrainte de la structure de semelle sous le poids du porteur de la chaussure (1) pendant un déplacement en marche, ils soient écrasés de manière approximativement identique, de sorte qu'une rotation de la plaque de pression (12 ; 12') supérieure par rapport à la plaque de pression (13 ; 13') inférieure autour d'un axe parallèle à la direction longitudinale de la chaussure (1) soit contrecarrée.
  2. Chaussure selon la revendication 1, caractérisée en ce que sur le segment de liaison (14), dans la direction opposée aux branches (10, 11) est surmoulé un segment de maintien (19), de sorte que l'élément à ressort (9) soit conçu sous la forme d'un Y, le segment de maintien (19) saillant à l'intérieur de la zone d'articulation (18) de la chaussure (1) jusqu'à un maximum de 10 mm à l'avant d'une zone d'éminence métatarsienne (21) dans la zone de l'avant-pied (20).
  3. Chaussure selon la revendication 1 ou 2, caractérisée en ce que chacun des éléments à ressort stabilisateurs (22, 23) est relié de manière à résister à la torsion avec des zones de bordure (24, 25) latérales des plaques de pression (12, 13 ; 12', 13') supérieure et inférieure, de telle sorte qu'un déplacement relatif de la plaque de pression supérieure (12 ; 12') et inférieure (13 ; 13') dans des directions latérales soit réprimé ou pour le moins entravé.
  4. Chaussure selon l'une quelconque des revendications 1 à 3, caractérisée en ce que les éléments à ressort stabilisateurs (22, 23) placés de part et d'autre du soufflet (4) sont reliés les uns aux autres par l'intermédiaire d'un listel (26) placé sur le bord arrière de la zone du talon (17).
  5. Chaussure selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les éléments à ressort stabilisateurs (22, 23) comprennent chacun au moins un segment à ressort (27) en forme de V ou en forme de U, qui est placé de telle sorte que ses branches se rapprochent, lors de la compression l'élément à ressort stabilisateur (22, 23).
  6. Chaussure selon l'une quelconque des revendications 1 à 5, caractérisée en ce que les zones de bordure latérales des plaques de pression (12, 13 ; 12', 13'), supérieure et inférieure par lesquelles les éléments à ressort stabilisateurs (22, 23) sont reliés forment des surfaces d'appui (29 ; 29') pour des extrémités supérieures ou inférieures des éléments à ressort stabilisateurs (22, 23).
  7. Chaussure selon la revendication 6, caractérisée en ce que les zones de bordure (24, 25 ; 24', 25') placées de part et d'autre de la plaque de pression (13 ; 13') inférieure sont séparées chacune par une fente (31, 32) ouverte sur la face arrière de la chaussure dans la zone centrale (33 ; 33') de la plaque de pression (13 ; 13') inférieure placée sous le soufflet (4), de telle sorte que les deux zones de bordure (24, 25 ; 24', 25') de la plaque de pression (13 ; 13') inférieure forment des branches de ressort séparées, et
    en ce que la zone centrale (33 ; 33') de la plaque de pression (13 ; 13') inférieure saillit vers le bas, de telle sorte que l'écrasement des surfaces d'appui (29 ; 29') et ainsi des éléments à ressort stabilisateurs (22, 23) ne commence qu'une fois que la zone centrale (33 ; 33') de la plaque de pression (13 ; 13') inférieure et la plaque de pression (12 ; 12') supérieure ont déjà été écrasées d'une course prédéfinie.
  8. Chaussure selon l'une quelconque des revendications 1 à 7, caractérisée en ce que les éléments à ressort stabilisateurs (22, 23) sont fixés de manière amovible ou interchangeable.
  9. Chaussure selon l'une quelconque des revendications 1 à 8, caractérisée en ce que les éléments à ressort stabilisateurs (22, 23) comportent un dispositif destiné à régler la force du ressort.
  10. Chaussure selon l'une quelconque des revendications 1 à 9, caractérisée en ce que dans les parois latérales du soufflet (4), sur les côtés ouverts de l'élément à ressort (9 ; 9') sont conçus des plis (34).
  11. Chaussure selon l'une quelconque des revendications 1 à 10, caractérisée en ce que le conduit d'aspiration (5) destiné à transporter de l'air de l'orifice d'aspiration (6) dans le soufflet (4) présente une surface de section transversale minimale de 3 mm2, pour des pointures d'une longueur à partir d'approximativement 25 cm, une surface de section transversale minimale de 4 mm2.
EP17150718.9A 2017-01-09 2017-01-09 Chaussure comprenant un dispositif de pompe à air ayant un élément de ressort entourant un soufflet Active EP3345499B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17150718.9A EP3345499B1 (fr) 2017-01-09 2017-01-09 Chaussure comprenant un dispositif de pompe à air ayant un élément de ressort entourant un soufflet
US15/581,042 US10064446B2 (en) 2017-01-09 2017-04-28 Shoe having an air pump device with a spring element clasping a bellows
PCT/EP2017/076886 WO2018127308A1 (fr) 2017-01-09 2017-10-20 Chaussure comprenant un dispositif de pompage d'air muni d'un élément ressort qui enveloppe un soufflet
CN201780082892.6A CN110312446B (zh) 2017-01-09 2017-10-20 具有带有扣住风箱的弹簧元件的空气泵送装置的鞋

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17150718.9A EP3345499B1 (fr) 2017-01-09 2017-01-09 Chaussure comprenant un dispositif de pompe à air ayant un élément de ressort entourant un soufflet

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EP3345499A1 EP3345499A1 (fr) 2018-07-11
EP3345499B1 true EP3345499B1 (fr) 2020-03-11

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US (1) US10064446B2 (fr)
EP (1) EP3345499B1 (fr)
CN (1) CN110312446B (fr)
WO (1) WO2018127308A1 (fr)

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USD909720S1 (en) * 2020-03-25 2021-02-09 Nike, Inc. Shoe
USD911681S1 (en) * 2020-03-25 2021-03-02 Nike, Inc. Shoe
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Also Published As

Publication number Publication date
EP3345499A1 (fr) 2018-07-11
US20180192734A1 (en) 2018-07-12
CN110312446A (zh) 2019-10-08
WO2018127308A1 (fr) 2018-07-12
CN110312446B (zh) 2021-11-02
US10064446B2 (en) 2018-09-04

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