US20120198729A1 - Shoe with ventilation system - Google Patents

Shoe with ventilation system Download PDF

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Publication number
US20120198729A1
US20120198729A1 US13/502,221 US201013502221A US2012198729A1 US 20120198729 A1 US20120198729 A1 US 20120198729A1 US 201013502221 A US201013502221 A US 201013502221A US 2012198729 A1 US2012198729 A1 US 2012198729A1
Authority
US
United States
Prior art keywords
pump
chamber
ventilation system
sheet
shoe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/502,221
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English (en)
Inventor
Giordano Graziani
Augusto Pagliari
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.)
GRUPPO MECCANICHE LUCIANI Srl
Original Assignee
GRUPPO MECCANICHE LUCIANI Srl
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 GRUPPO MECCANICHE LUCIANI Srl filed Critical GRUPPO MECCANICHE LUCIANI Srl
Assigned to GRUPPO MECCANICHE LUCIANI S.R.L. reassignment GRUPPO MECCANICHE LUCIANI S.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GRAZIANI, GIORDANO, PAGLIARI, AUGUSTO
Publication of US20120198729A1 publication Critical patent/US20120198729A1/en
Abandoned legal-status Critical Current

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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
    • A43B7/082—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
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/08—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined ventilated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/122—Soles

Definitions

  • the present application for industrial invention relates to a shoe with ventilation or transpiration system, and in particular to an accident-prevention shoe.
  • a shoe is mainly made of an upper that wraps the foot around and an outsole that is glued to the upper and acts as tread.
  • the two parts are manufactured separately and then glued. Therefore, before gluing the outsole on the upper, various mechanisms can be inserted in the outsole to obtain a transpiration system. Transpiration systems applied to this type of shoe are available on the market.
  • U.S. Pat. No. 5,826,349 and US2005/0005473 disclose shoes with ventilation system integrated in the outsole and in the bottom of the shoe.
  • solutions are known that provide for realizing a ventilation mechanism in the insole disposed above the bottom of the shoe.
  • the insoles of the prior art are only realized by coupling two sheets in order to contain the ventilation mechanism. Consequently, the structure of the insole is uncomfortable for the user. Moreover, such a type of insole structure cannot be molded with a suitable soft material, such as polyurethane foam.
  • the purpose of the present invention is to eliminate the drawbacks of the prior art, disclosing a method for production of a insole with ventilation system that is comfortable for the user.
  • Another purpose of the present invention is to provide a insole with ventilation system that can be easily combined with a shoe without interfering with the bottom or the outsole of the shoe.
  • the insole of the invention comprises a lower layer of polyurethane foam obtained with injection molding and disposed under a ventilation system, with borders folded in such a way to surround the peripheral borders of said ventilation system.
  • FIG. 1 is an exploded top view that shows the various parts of the ventilation system of the shoe of the invention
  • FIG. 2 is a top view of a leather sheet that is part of the ventilation system
  • FIG. 3 is a bottom view of the ventilation system complete and assembled
  • FIG. 4 is a cross-sectional view of the ventilation system assembled
  • FIG. 5 is a diagrammatic cross-sectional view of a mold for injection of polyurethane foam for realization of the insole for shoe of the invention
  • FIG. 5 A is an enlarged view of the detail contained in the circle A of FIG. 5 ;
  • FIG. 6 is a cross-sectional view of the semi-finished insole obtained with the mold of FIG. 5 ;
  • FIG. 7 is a cross-sectional view of the finished insole after cutting the leather sheet.
  • FIG. 8 is a cross-sectional view of a shoe with the insole of FIG. 7 .
  • FIGS. 1-4 a ventilation system according to the invention is disclosed, which is generally indicated with numeral ( 2 ).
  • the ventilation system ( 2 ) comprises a lower sheet ( 3 ) of soft deformable material, such as soft thermoplastic polyurethane (TPU) with Shore A hardness lower than 65.
  • the lower sheet ( 3 ) has a flattened shape, basically similar to the front of the foot.
  • the lower sheet ( 3 ) comprises deformable spacers ( 31 ) that protrude upwards. As shown in FIG. 4 , the spacers ( 31 ) are shaped as internally empty rectangular projections. This means that the lower side of the sheet ( 3 ) is provided with a plurality of recessed seats ( 34 ) in correspondence with the spacers ( 31 ).
  • the air spaces ( 32 ) are in communication with an outlet channel ( 33 ) at the back end of the lower sheet ( 3 ).
  • a connection pipe ( 20 ) is coupled in the outlet channel ( 33 ).
  • a pump ( 4 ) comprises a lower semibody ( 41 ) and an upper semibody ( 42 ) that are coupled to form a pumping chamber ( 40 ) (see FIG. 4 ) which communicates with the air spaces ( 32 ) of the lower sheet ( 3 ) by means of the connection pipe ( 20 ).
  • the lower semibody ( 41 ) is made of hard rigid plastic material, such as hard thermoplastic polyurethane (TPU) with Shore A hardness higher than 95 .
  • the upper semibody ( 42 ) is made of soft flexible plastic material, such as soft thermoplastic polyurethane (TPU) with Shore A hardness lower than 65 .
  • the two semibodies ( 41 , 42 ) are coupled by heat sealing or gluing the peripheral portions.
  • the chamber ( 40 ) of the pump communicates with the air outlet pipe ( 21 ) that extends in the back to be brought out of the shoe.
  • valve unit ( 7 ) is coupled in the front part of the pump ( 4 ).
  • the valve unit ( 7 ) comprises a rectangular block ( 70 ) made of rigid plastic material, which is provided with:
  • the valve unit ( 7 ) can be made in one piece with the lower semibody ( 41 ) of the pump.
  • a first non-return (one-way) valve ( 5 ) is installed at the inlet of the U-shaped conduit ( 71 ).
  • the first non-return valve ( 5 ) permits air flow from the chamber ( 40 ) of the pump to the air outlet pipe ( 21 ) and not vice versa.
  • the first non-return valve ( 5 ) comprises a spherical shutter ( 50 ) with a spring ( 51 ) to maintain the valve normally closed.
  • a second non-return (one-way) valve ( 6 ) is installed in the longitudinal conduit ( 72 ).
  • the second non-return valve ( 6 ) permits air flow from the connection pipe ( 20 ) to the chamber ( 40 ) of the pump and not vice versa.
  • the second non-return valve ( 6 ) comprises a spherical shutter ( 60 ) with a spring ( 61 ) to maintain the valve normally closed.
  • an upper sheet ( 8 ) is formed of a strip made of leather or imitation leather, with very low thickness and a basically rectangular shape with rounded corners, with higher dimension than the foot.
  • a plurality of transpiration holes ( 80 ) is obtained in the front and central part of the upper sheet ( 8 ). Instead a plurality of holes ( 81 ) for fixing to the mold is obtained in a peripheral part of the upper sheet ( 8 ), as illustrated below.
  • the upper sheet ( 8 ) is disposed above the lower sheet ( 3 ), the connection pipe ( 20 ), the valve unit ( 7 ) and the pump ( 4 ).
  • the upper sheet ( 8 ) is coupled to the lower sheet ( 3 ) and to the pump ( 4 ) by means of stitching ( 82 ) or gluing, along a peripheral part of lower sheet ( 3 ) and pump ( 4 ).
  • the function of the leather upper sheet ( 8 ) is to maintain the entire ventilation system ( 2 ) together during molding.
  • the ventilation system ( 2 ) is inserted in a mold ( 100 ) for injection molding of polyurethane foam.
  • the mold ( 100 ) comprises a die ( 101 ) and a lid ( 102 ).
  • the die ( 101 ) is provided with a back longitudinal hole ( 103 ) from which the outlet pipe ( 21 ) comes out to be connected to an external pump (P).
  • the mold ( 100 ) is closed with the lid ( 102 ) that is uniformly disposed above the upper sheet ( 8 ) closing the holes ( 80 ).
  • the lid ( 102 ) is provided with vertical pins ( 104 ) that protrude downwards. Referring to FIG. 5A , the pins ( 104 ) of the lid cross the peripheral holes ( 81 ) of the upper sheet and are engaged in suitable seats ( 105 ) of the die, firmly holding the upper sheet.
  • a peripheral air space is generated, surrounding the perimeter peripheral border of the ventilation system.
  • the die ( 101 ) is provided with a plurality of vertical pins ( 106 ) that protrude upwards, which exert pressure on the lower semibody ( 41 ) of the pump, which is suitably made of rigid plastic material.
  • Pressurized air is injected by means of the external pump (P), flowing in the ventilation system ( 2 ) in such a way to generate a pressure of about 2 atmospheres inside the chamber ( 40 ) of the pump.
  • the non-return valves ( 5 , 6 ) are adjusted in such a way to be one-way only in case of low pressure values.
  • the high pressure of the air sent by the external pump allows to force the valve ( 5 , 6 ) with reverse flow and put the chamber of the pump in pressure.
  • the pins ( 106 ) hold the ventilation system ( 2 ) against the lid ( 102 ) in such a way that polyurethane does not enter between the upper sheet ( 8 ) and the upper part of the pump ( 4 ) during injection or casting. To that end and for higher safety, air is injected inside the pump ( 4 ) so that the upper semibody ( 42 ) of the pump pushes the upper sheet ( 8 ) that perfectly adheres to the lid ( 102 ).
  • polyurethane foam can be injected in the mold ( 100 ), which is disposed under the ventilation system ( 2 ), forming a lower layer ( 9 ) of polyurethane foam.
  • the polyurethane foam ( 9 ) flows in the peripheral air space, under the upper sheet ( 8 ), surrounding the perimeter peripheral border of the ventilation system ( 2 ). In this way the polyurethane foam also surrounds the peripheral borders of the ventilation system ( 2 ).
  • the ventilation system ( 2 ) has been specifically studied to allow for injection molding of polyurethane foam.
  • the injection molding of polyurethane has been possible because of the materials used for the pump ( 4 ) and because of the fact that the chamber ( 40 ) of the pump is maintained under pressure during molding.
  • polyurethane foam ( 9 ) allows for perfect coupling between the lower sheet ( 3 ) and the upper sheet ( 8 ); between the two semibodies ( 41 , 42 ) of the pump; between the valve unit ( 7 ) and the pump ( 4 ); and between the pump ( 4 ) and the upper sheet ( 8 ).
  • a semi-finished insole (S) is obtained from the mold ( 100 ), wherein the lower layer ( 9 ) of polyurethane foam has perimeter borders ( 90 ) that surround the peripheral border of the ventilation system ( 2 ) under the upper sheet ( 8 ).
  • the upper sheet ( 8 ) has a peripheral portion ( 84 ) that protrudes externally with respect to the borders ( 90 ) of the polyurethane layer. Accordingly, the upper sheet ( 8 ) is cut with shearing process along a cutting line ( 83 ) in correspondence with the perimeter border ( 90 ) of the polyurethane layer. In such a way, as shown in FIG. 7 , a finished insole (S) is obtained, which is compact, stable and comfortable.
  • FIG. 8 shows a shoe with upper (T) and bottom ( 1 ) joined to the upper (T).
  • An outsole ( 11 ) is fixed under the bottom ( 1 ).
  • the insole (S) comprising the ventilation system ( 2 ) is disposed on the bottom ( 1 ).
  • a hole ( 10 ) is made in the heel area between bottom ( 1 ) and upper (T) to pass the air outlet pipe ( 21 ) in such a way that air is ejected out of the shoe.
  • a quarter stiffener ( 15 ) is disposed between outsole ( 11 ) and upper (T), which is provided with a channel ( 16 ) in communication with the hole ( 10 ) to guide the ejection of the air out of the shoe.
  • the insole (S) can be of removable type or can be glued to the bottom ( 1 ).
  • the ventilation system ( 2 ) of the invention does not modify or interfere with the structure of the bottom ( 1 ) or outsole ( 11 ) of the shoe. Therefore, in case of accident-prevention shoes, metal plates or Kevlar sheets can be disposed in the outsole ( 11 ) or in the bottom ( 1 ) without interfering with the ventilation system.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US13/502,221 2009-10-29 2010-10-27 Shoe with ventilation system Abandoned US20120198729A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMC2009A000224 2009-10-29
ITMC2009A000224A IT1396364B1 (it) 2009-10-29 2009-10-29 Calzatura con sistema di aerazione.
PCT/EP2010/066230 WO2011051320A1 (en) 2009-10-29 2010-10-27 Shoe with ventilation system.

Publications (1)

Publication Number Publication Date
US20120198729A1 true US20120198729A1 (en) 2012-08-09

Family

ID=42262439

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/502,221 Abandoned US20120198729A1 (en) 2009-10-29 2010-10-27 Shoe with ventilation system

Country Status (10)

Country Link
US (1) US20120198729A1 (es)
EP (1) EP2493347B1 (es)
DK (1) DK2493347T3 (es)
ES (1) ES2519569T3 (es)
IT (1) IT1396364B1 (es)
MX (1) MX2012004898A (es)
PL (1) PL2493347T3 (es)
RS (1) RS53614B1 (es)
RU (1) RU2551269C2 (es)
WO (1) WO2011051320A1 (es)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130283640A1 (en) * 2012-04-25 2013-10-31 Nike, Inc. Article of footwear with bladder and method of manufacturing the same
US20140331525A1 (en) * 2013-05-13 2014-11-13 Ariel West Footwear with plantar misting system
US10010132B2 (en) 2014-01-13 2018-07-03 Alexander Litvinov Ventilation of footwear
CN108577034A (zh) * 2018-05-23 2018-09-28 佛山市瑞生海特生物科技有限公司 一种可释放药粉的药用鞋垫与该鞋垫的使用方法
CN108618261A (zh) * 2018-05-23 2018-10-09 佛山市瑞生海特生物科技有限公司 一种双层增高夏日用鞋垫与该鞋垫的使用方法
CN108669704A (zh) * 2018-05-23 2018-10-19 佛山市瑞生海特生物科技有限公司 一种双层增高且可释放药粉的药用鞋垫与该鞋垫的使用方法
CN108669703A (zh) * 2018-05-23 2018-10-19 佛山市瑞生海特生物科技有限公司 一种具有储藏功能的清凉鞋垫与该鞋垫的使用方法
US10433613B2 (en) * 2014-01-13 2019-10-08 Alexander Litvinov Ventilation apparatus for footwear
US11058174B2 (en) 2017-12-29 2021-07-13 Nike, Inc. Footwear sole structure
US11452337B2 (en) * 2020-07-20 2022-09-27 Jinzhou Wang Walking-assisted air-jet insole
US11925238B2 (en) 2016-10-07 2024-03-12 Fitflop Limited Item of footwear

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8919011B2 (en) 2006-11-30 2014-12-30 C. & J. Clark International Limited Footwear with air circulation system
KR101115202B1 (ko) * 2011-05-19 2012-03-13 석옥균 통기성 신발의 제조방법
EP2636325B1 (en) * 2012-03-06 2017-08-16 C & J Clark International Limited Footwear with air circulation system
WO2016036329A1 (en) * 2014-09-03 2016-03-10 Tamer Kutdoga Air-conditioned insole

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US6098313A (en) * 1991-09-26 2000-08-08 Retama Technology Corporation Shoe sole component and shoe sole component construction method
US20070006488A1 (en) * 1994-01-26 2007-01-11 Reebok International Ltd. Support and cushioning system for an article of footwear
US5996250A (en) * 1994-10-19 1999-12-07 Reed; Rusty A. Air-cooled shoe having an air exhaust pump
US5953835A (en) * 1996-09-12 1999-09-21 Lepard Corporation Ventilated shoe
US5915819A (en) * 1996-11-26 1999-06-29 Gooding; Elwyn Adaptive, energy absorbing structure
US6085444A (en) * 1997-11-21 2000-07-11 Cho; Nam Suk Ventilated footwear
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US6751890B1 (en) * 2003-01-22 2004-06-22 Mao-Cheng Tsai Structure of ventilated shoe bottom
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US20060032089A1 (en) * 2004-08-12 2006-02-16 Chie-Fang Lo Cushion device for shoes
US20060143943A1 (en) * 2005-01-06 2006-07-06 Cho Jong S Footwear with ventilating and shock-absorbing device
US20060156575A1 (en) * 2005-01-19 2006-07-20 Chie-Fang Lo Inflatable shoe sole
US20070000151A1 (en) * 2005-07-01 2007-01-04 Su Robert H Waterproof Shoes With Thermoplastic Polyurethane (TPU) Insteps
US20070044345A1 (en) * 2005-08-23 2007-03-01 Chi-Chen Yang Air cushion
US20070068037A1 (en) * 2005-09-29 2007-03-29 Ridinger Michael R Shoe Ventilation and Shock Absorbtion Mechanism
US20070169376A1 (en) * 2006-01-24 2007-07-26 Nike, Inc. Article of footwear having a fluid-filled chamber with flexion zones
US7571555B1 (en) * 2006-03-28 2009-08-11 Powell Sr M Shayne Pneumatically cushioned shoe sole
US20090119949A1 (en) * 2006-05-16 2009-05-14 Sam-Gun Song Footwear for three-beat rhythm walking
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US9681700B2 (en) 2012-04-25 2017-06-20 Nike, Inc. Article of footwear with bladder and method of manufacturing the same
US20130283640A1 (en) * 2012-04-25 2013-10-31 Nike, Inc. Article of footwear with bladder and method of manufacturing the same
US20140331525A1 (en) * 2013-05-13 2014-11-13 Ariel West Footwear with plantar misting system
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US20180271208A1 (en) * 2014-01-13 2018-09-27 Alexander Litvinov Ventilation Of Footwear
US10433613B2 (en) * 2014-01-13 2019-10-08 Alexander Litvinov Ventilation apparatus for footwear
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EP2493347A1 (en) 2012-09-05
DK2493347T3 (da) 2014-10-27
IT1396364B1 (it) 2012-11-19
RU2551269C2 (ru) 2015-05-20
ITMC20090224A1 (it) 2011-04-30
ES2519569T3 (es) 2014-11-07
RS53614B1 (en) 2015-04-30
PL2493347T3 (pl) 2014-12-31
WO2011051320A1 (en) 2011-05-05
EP2493347B1 (en) 2014-07-23
MX2012004898A (es) 2012-06-19

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