EP2792262A1 - Chaussure de sécurité avec ventilation d'air active - Google Patents

Chaussure de sécurité avec ventilation d'air active Download PDF

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Publication number
EP2792262A1
EP2792262A1 EP13163735.7A EP13163735A EP2792262A1 EP 2792262 A1 EP2792262 A1 EP 2792262A1 EP 13163735 A EP13163735 A EP 13163735A EP 2792262 A1 EP2792262 A1 EP 2792262A1
Authority
EP
European Patent Office
Prior art keywords
air
safety shoe
safety
shoe
sole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13163735.7A
Other languages
German (de)
English (en)
Other versions
EP2792262B1 (fr
Inventor
Wilhelm Möhlmann
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 EP13163735.7A priority Critical patent/EP2792262B1/fr
Priority to PCT/EP2014/053404 priority patent/WO2014170053A1/fr
Publication of EP2792262A1 publication Critical patent/EP2792262A1/fr
Application granted granted Critical
Publication of EP2792262B1 publication Critical patent/EP2792262B1/fr
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Anticipated expiration legal-status Critical

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/06—Footwear with health or hygienic arrangements ventilated
    • A43B7/08—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures
    • A43B7/081—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
    • 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 safety shoe in which with each step of the walking movement of a user an efficient air circulation in the safety shoe and thus directly at the foot of the user of the safety shoe is made possible.
  • the invention relates to such a safety shoe with puncture-proof insole and steel cap.
  • a shoe consists of two main parts, namely the upper part, called the shank, and the lower part, the floor.
  • the shank may include an inner shank (chuck), intermediate shank (intermediate chuck) and outer shank (upper leather).
  • the floor consists of at least one sole and may include an insole (insole) and an outsole. Between inner and outsole, one or more midsoles may be provided.
  • shoes which are equipped in the sole with devices which are supposed to favor the air circulation in the shoe, whereby the internal moisture in the shoe is to be reduced in order to improve the foot comfort of the user of the shoe.
  • This known shoe type generally provides hollow connections, which are accommodated in the sole interior connected to one another.
  • air is to be directed from outside to inside through openings in the sole.
  • the openings are sealed with membranes to protect against water.
  • no efficient fresh air supply is possible.
  • the open end in a Shank is guided upwards.
  • the disadvantage of this type of footwear is the lack of efficiency of air circulation in the shoe due to the inefficient suction of the air by means of the air pumping device.
  • the pumping mechanism operates so inefficiently that no significant ventilation of the shoe interior is possible.
  • a ventilation device for insertion into a shoe in which by means of a hinged to a flange rotatable pump ventilation of a shoe interior, in which the ventilation device is used, is to be achieved.
  • the ventilation device is structurally very complicated and mechanically prone to failure with the movable pump device.
  • the proposed solutions are not suitable to ensure efficient air ventilation in a safety shoe, which is designed to protect the user from injury to the foot.
  • Such work shoes may generally have a puncture resistant insole for protection against penetration injuries from nails and other sharp objects and / or a toe cap for protection against crushing caused by falling objects.
  • Due to the relatively massive construction the ventilation of the safety shoe interior of safety shoes is particularly difficult.
  • a safety shoe according to claim 1 ie by a safety shoe with a sole construction comprising an insole, a lower outsole part and an air pumping device, wherein the air pumping device is formed either by a cavity substantially recessed in the heel part in the lower sole part or separately formed as an independent entity (lung) and completely or partially in a cavity of the lower one Outsole part is inserted in the heel area; an air supply device which is connected to the air pump device, an air discharge device, which is connected to the air pump device and which is adapted to direct air from the air pump device to an air distribution device which is connected to the air discharge device, wherein the air distribution device above the insole in the shoe interior of the safety shoe, for example in the shoe cap the toe area, is positioned and is adapted to air into the shoe interior (and here, for example, starting from the front over the toes with the supplied fresh air overflowing) to direct; and a penetration safety sole and / or a toe cap.
  • the penetration safety sole is a puncture-resistant sole that prevents sharp objects, which a user of the safety shoe steps on, from penetrating into the shoe interior and injuring the foot of the user.
  • the penetration safety sole may be formed in the insole (puncture resistant insole), or it may be formed separately therefrom and partially or completely cover the insole.
  • the penetration safety sole can be made for example of sheet steel, fabric or Kevlar.
  • the toe cap protects the toes of the user from injury and can be made of sheet steel, for example, Be made of plastic or titanium.
  • the claimed safety shoe can meet, for example, the standards DIN EN ISO 20345 or 20346.
  • the air discharge device may comprise at least one hose, with the aid of which air can be conducted from the air pump device provided in the heel region to the front of the air distribution device (or to a connection piece thereof which connects it to the air discharge device).
  • the air discharge device is formed below the insole. In the toe area of the shoe interior, this air can then be conducted, for example, via the air distribution device into the interior of the shoe.
  • the terms upper, upper, etc. refer to positions further away from a substrate contacting the sole structure when used in a safety shoe than positions referenced by terms such as below, lower, and so on.
  • the air distribution device may be located at the front of the shoe, in a shoe cap, which may or may not necessarily be a toe cap, above the insole in front of the toe area or in the fore toe area (the area where the toe of a user of the safety shoe is located) , and serve to supply the fresh air from the front into the shoe interior.
  • the foot of the user is here overflowed from the beginning over the toes with the supplied fresh air.
  • an efficient ventilation of the shoe interior is provided for the first time by sucking air into the air pump device via the air supply device during the walking movement of the user and conveying it to the inside of the shoe via the air discharge device and the air distribution device.
  • the air distribution allows this a particularly efficient ventilation of the shoe interior.
  • the sole construction, or the insole, the lower outsole part and the air pump device may be designed such that it allows at least 5 ml, in particular at least 10 ml of air (fresh air) when expanding the air pump device from the outside (outside of the sole construction or the safety shoe with the sole construction) and at least 5 ml, in particular at least 10 ml, of air during compression of the Air pump device are ejected into the safety shoe inside.
  • the pumping volume of an air pump device is determined here for a given sole construction as follows:
  • PFI DSPM-H 3035 PFI-Hydraulic Shock Absorption Testing Machine
  • the contact pressure of the circular plunger with a diameter of 40 mm is in the measurement of the pumping volume according to the invention 1200 N.
  • the plunger is positioned as follows (see FIGS. 5a to 5d ).
  • the straight line g1 along the lower sole part with the greatest length of all straight lines extending from the outermost edge of the heel portion of the lower sole portion to the outermost edge of the toe portion of the lower sole portion is determined.
  • the perpendicular s1 to the determined straight line g1 is determined ( FIG. 5a ).
  • the center M1 of this perpendicular s1 is detected with respect to the points P2 and P3 at which it intersects the lateral edges of the lower outsole part ( FIG. 5b ).
  • the straight line g2 (first test axis) is defined by the points P1 and M1.
  • Half of the distance from P1 to M1 on the line g2 defines the center point M2 (positioning point) ( FIG. 5c ).
  • the test stamp is positioned centrally on this center point M2 (positioning point). This happens, for example, by means of a second test axis g3, which is perpendicular to the first test axis g2 and through its center M2 (positioning point) extending in addition to the first fürfachse g2 is drawn.
  • the radius of the test stamp can then be marked on the test axes g2 and g3 ( FIG. 5d ).
  • the outsole By slowly lowering the test stamp before the test, the outsole can be positioned exactly, making sure that the test stamp does not put any pressure on the material. Corresponds to the positioning of the plunger markings marked, the outsole part is fixed with brackets so that no shifting of the outsole part is possible.
  • an air pump device recessed in the heel region sucks in air via an air inlet valve.
  • an air outlet tube, Festo (pneumatic 10 bar at RT) PUN - 8 x 1.25 is prepared through a further opening prepared in the outsole. 8 mm), through which the air pump device discharges air via an outlet valve.
  • Air flow is measured using a Bürkert Mass Flowmeter Type 8701 with a nominal flow rate of 1 l / min, available from Christian Bürkert GmbH & Co. KG, Christian-Bürkert-Strasse 13-17, 74653 Ingelfingen.
  • air is sucked in from outside the sole construction and outside the safety shoe, in particular from above the insole, by the air pump device.
  • the air supply device can be guided upwards in a shaft of the safety shoe.
  • the air pump device may in particular be designed to perform an air pumping function in response to a walking movement of a user of the safety shoe with the sole construction in such a way that it alternately discharges air (at least 5 ml, in particular at least 10 ml) over at least the foot of the user an air supply device from outside of the sole structure or the safety shoe sucks and when the air pump device is loaded by the user's foot, air (at least 5 ml, in particular at least 10 ml) is distributed in the safety shoe (ejected into the air discharge device).
  • the pumping effect can be further assisted in that the lower outsole part in the area of the air pumping device has a raised area in contact with the air pumping device, which is designed to be pressed in the direction of the insole when loaded by a user's foot. This ensures particularly efficient ventilation.
  • the air pump device may be formed as a cavity or as an independent entity.
  • the air pump device may be provided as a cavity in the form of a cavity filled with an air-permeable elastic filling material.
  • the use of only one formed cavity as the air pumping device simplifies the manufacturing process, reduces the manufacturing cost and can increase the reliability and life of the air pumping device.
  • the use of a separately designed as an independent entity air pump device can improve the efficiency of air circulation.
  • the air pump device may comprise a plastic pump reservoir as an independent entity. This is compressed when a user's foot rests on it, which squeezes air out of the plastic pump reservoir. If, during walking, the plastic pump reservoir is again relieved of the foot, it expands and draws from the outside due to the negative pressure previously created, which is fresh for the subsequent ventilation of the safety shoe interior and thus the foot of a user available.
  • the formation of the air pump device as a separate entity allows an independent of the sole construction or the sole body material selection and in particular material strength.
  • the safety shoe described in the above examples in the air supply means having a first one-way valve, which is designed such that it construction only in the direction of outside the sole construction in the air pump device passes through, and / or in the air discharge device having a second one-way valve, which is designed such that it passes air only in the direction of the air pump device through the air discharge means and finally to the air distribution device.
  • outside air can be drawn in by the air pump device, and the previously absorbed air can be expelled into the air discharge device. If, during the appropriate walking phase, a user's foot does not bear on the air pumping device, this air (in particular at least 5 ml or at least 10 ml) will be drawn in from outside the sole construction (especially from above the insole) via the corresponding air supply means when the foot is resting on it If necessary, it pumps the air (in particular at least 5 ml or at least 10 ml) over the corresponding air discharge device for effective ventilation of the user's foot.
  • this air in particular at least 5 ml or at least 10 ml
  • a safety shoe with a sole construction which provides active air circulation with a simple structure by walking or running motion alone, as is not known in the art.
  • the proposed one-way valves allow efficient control of the air flows through the air ducts (air supply and air discharge device) into and out of the air pump device.
  • the air discharge device may be in the form of a hose or channel; it can also be provided only in the form of an outlet of the air pump device, in particular an air reservoir of the air pump device.
  • the at least one air supply device and / or the at least one air discharge device may comprise a flexible hose and / or a covered channel or in each case consist of a flexible hose, for example of plastic. If a plurality of air supply means and / or air discharge means are provided, they may all comprise or consist of a hose or duct, or some and not all of the air ducts may each comprise or consist of a hose.
  • the air ducts may be integral with a plastic pump reservoir of the air pump device be educated. According to these examples, the air ducts (air supply and exhaust means) can easily and inexpensively guide the air to and from the air pumping device to ventilate the safety shoe interior.
  • the air supply device can be guided upwards, so that air can be sucked from the outside above the insole.
  • the air supply device in a shaft region of a safety shoe, which comprises the sole construction according to the invention end, in order to allow the intake of fresh air through the air pumping device.
  • the air supply device ends above the insole it is substantially avoided that dirt and / or moisture is sucked into the air pump device.
  • no membrane needs to be provided in or on the air supply device.
  • the air supply device can be provided, for example, on a heel part of the safety shoe.
  • the heel part may comprise an outer and an inner heel part. Air is then drawn in from outside the safety shoe by the air pump device between the outer and the inner part of the heel part. Thus, air can be sucked through the air supply means in the outer part of the heel part, between the outer and the inner part of the heel part and through a correspondingly provided opening of the inner part of the heel part to the air pump device.
  • the air supply device in the form of an air-intake or an air-intake, see also detailed description below
  • the air supply device can in principle be provided at any point in the upper region of the shaft of the safety shoe.
  • the heel part may also include an integrated water drain in the lower region of an air inlet of the air supply device, so that penetrating water is discharged directly again and does not get into the shoe interior.
  • the present invention provides a safety shoe with the sole construction according to one of the preceding examples with air supply and air discharge device, wherein the safety shoe has a shaft for slipping a foot of a wearer of the safety shoe, wherein the shaft has a part close to the sole construction and one of Sole construction has remote part, and in which the air supply means so partially along the shaft, in particular by an inner lining of the shaft from the foot of the wearer of the safety shoe separated from the near part to the remote part extends that air (especially at least 5 ml or at least 10 ml) can be pumped from the remote part into the air pumping device.
  • fresh air can be drawn in from the air pump device over a relatively large area.
  • water ingress into the safety shoe from the outside is substantially avoided if the end of the first air duct, through which air is drawn in from the outside, viewed from the outsole, is higher than the lowest shaft end of the safety shoe.
  • a water drain below the fresh air inlet can be provided to prevent the ingress of water.
  • the safety shoe according to the invention comprises a perforated safety sole, wherein the perforated safety sole and the insole each comprise an opening (or an impermeable insole may comprise an opening) through which air is directed from the air removal device to above the insole and into the shoe interior of the safety shoe can be.
  • the air distribution device which here has a plurality of openings, can be distributed by the air from the air discharge device into the interior of the shoe, in this case be provided in particular in the region of a toe cap of the safety shoe.
  • the fresh air is conveyed via the air pump device and the air discharge device by means of the air distribution device in the area of the toe cap and above the insole in the shoe interior.
  • a sole construction of a safety shoe comprises a lower outsole part 16, an insole 31 and a penetration safety sole 35.
  • an air pumping device is provided in the form of a plastic pumping reservoir (as a separate entity, in one piece or in several pieces) Base element 14 and a lung cover 33 is formed.
  • a cavity 5 in the lower sole portion 16 could be provided as an air pumping device (instead of the elements 14 and 33).
  • a hose 12 is connected via a one-way valve 11 to the air pump device.
  • the air pumping device Upon loading of the heel area by the foot of a user during the walking movement, the air pumping device is compressed, whereby air is forced out of this into the tube 12. Air is supplied from outside the safety shoe via the Air-Intake 18 and another one-way valve 11 that holds the air only in the direction of the air pumping device, sucked by the air pumping device.
  • This air-intake 18 may be visible in particular on the shaft of the safety shoe and in the form of a logo, pattern, trademark or the like. be formed or the like. Below an opening for the air inlet into the air-Intake 18 can still be integrated with a water outlet 40, can drain directly through the water below the air inlet again, to prevent water is sucked into the shoe interior of the air pump device.
  • At least 5 ml of air, in particular at least 10 ml of air are drawn in from outside the safety shoe.
  • at least 5 ml of air, in particular at least 10 ml of air are drawn in from outside the safety shoe.
  • at least 5 ml of air, in particular at least 10 ml of air are ejected from the air pump device into the tube 12.
  • the air expelled from the air pumping device is directed through the hose 12 toward the toe area of the safety shoe.
  • the tube 12 is connected to an air distribution device 32 (air nozzle).
  • the air distribution device 32 has openings 3 for distributing the air, as it does in FIG FIG. 3 clearly shown.
  • the connection is made by a provided in both the insole 31 and the penetration safety sole 35 opening.
  • the air distribution device 32 is located within a toe cap 34 and has openings 3, through which the fresh air conveyed by the air pump device can be ejected distributed in the toe area of the shoe interior of the safety shoe above the insole 31.
  • the in the FIGS. 1 and 2 shown construction is in FIG. 4 shown for further clarity in the form of a cross-sectional drawing. Same reference numerals as in the FIGS. 1 and 2 denote the same elements.
  • the hose 12 is in the example shown in a PU foam environment of the lower outsole part 16.
  • the PU foam environment is advantageous in that it damages any of the hose 12 by penetrating sharp objects attached to the penetration safety sole 35 for protection of the foot of a user intercepted can balance through the elastic, sealing properties of the PU material.
  • the lower outsole part 16 may be made of an abrasion-resistant rubber composition on the actual tread, with which the ground is touched, as is known in the art.
  • the penetration safety sole 35 is in direct mechanical contact with the upper part of the air pump device, ie with the base element 14.
EP13163735.7A 2013-04-15 2013-04-15 Chaussure de sécurité avec ventilation d'air active Active EP2792262B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13163735.7A EP2792262B1 (fr) 2013-04-15 2013-04-15 Chaussure de sécurité avec ventilation d'air active
PCT/EP2014/053404 WO2014170053A1 (fr) 2013-04-15 2014-02-21 Chaussure de sécurité à ventilation active

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13163735.7A EP2792262B1 (fr) 2013-04-15 2013-04-15 Chaussure de sécurité avec ventilation d'air active

Publications (2)

Publication Number Publication Date
EP2792262A1 true EP2792262A1 (fr) 2014-10-22
EP2792262B1 EP2792262B1 (fr) 2018-06-13

Family

ID=48095717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13163735.7A Active EP2792262B1 (fr) 2013-04-15 2013-04-15 Chaussure de sécurité avec ventilation d'air active

Country Status (2)

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EP (1) EP2792262B1 (fr)
WO (1) WO2014170053A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3097808B1 (fr) * 2015-05-29 2017-09-13 ATMOS airwalk ag Dispositif d'entrée d'air pour une chaussure
EP3106051B1 (fr) * 2015-06-15 2019-09-11 ATMOS airwalk ag Chaussure équipée d'un dispositif de ventilation électrique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2060350A (en) * 1979-07-19 1981-05-07 Orme Polymer Eng Ltd Safety footwear
WO2000001266A1 (fr) 1998-07-07 2000-01-13 Korea Institute Of Footwear & Leather Technology Type de chaussure avec ventilation a direction variable de l'ecoulement d'air
US20070068037A1 (en) * 2005-09-29 2007-03-29 Ridinger Michael R Shoe Ventilation and Shock Absorbtion Mechanism
WO2008095353A1 (fr) * 2007-02-02 2008-08-14 Bo Yin Chaussure ventilée et stérilisée à l'ozone
WO2008156860A1 (fr) 2007-06-20 2008-12-24 Gore Enterprise Holdings, Inc. Chaussures à ventilation
US20120216432A1 (en) * 2006-11-30 2012-08-30 Richard Byrne Footwear with Air Circulation System

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2060350A (en) * 1979-07-19 1981-05-07 Orme Polymer Eng Ltd Safety footwear
WO2000001266A1 (fr) 1998-07-07 2000-01-13 Korea Institute Of Footwear & Leather Technology Type de chaussure avec ventilation a direction variable de l'ecoulement d'air
US20070068037A1 (en) * 2005-09-29 2007-03-29 Ridinger Michael R Shoe Ventilation and Shock Absorbtion Mechanism
US20120216432A1 (en) * 2006-11-30 2012-08-30 Richard Byrne Footwear with Air Circulation System
WO2008095353A1 (fr) * 2007-02-02 2008-08-14 Bo Yin Chaussure ventilée et stérilisée à l'ozone
WO2008156860A1 (fr) 2007-06-20 2008-12-24 Gore Enterprise Holdings, Inc. Chaussures à ventilation

Also Published As

Publication number Publication date
WO2014170053A1 (fr) 2014-10-23
EP2792262B1 (fr) 2018-06-13

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