US20080127527A1 - Multilayered insole for footwear - Google Patents

Multilayered insole for footwear Download PDF

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Publication number
US20080127527A1
US20080127527A1 US11/850,360 US85036007A US2008127527A1 US 20080127527 A1 US20080127527 A1 US 20080127527A1 US 85036007 A US85036007 A US 85036007A US 2008127527 A1 US2008127527 A1 US 2008127527A1
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United States
Prior art keywords
thickness
layer
insole
intermediate layer
base
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
US11/850,360
Inventor
Ting-Chun CHEN
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Individual
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Individual
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Classifications

    • 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
    • A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
    • 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
    • A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/386—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process multilayered
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
    • A43B17/006—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material multilayered
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/10—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined specially adapted for sweaty feet; waterproof
    • 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
    • A43B17/14—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined made of sponge, rubber, or plastic materials

Definitions

  • the present invention relates generally to insoles for footwear, and more particularly to a multilayered insole having good resistance to compression and excellent air permeability.
  • U.S. Pat. No. 4,642,912 issued to Gray discloses an improved insole.
  • the insole is characterized in that it consists of three layers. Each of the layers is constructed of flexible foam with a specific compressive strength. As a result, the retention rate of cushioning properties after wear of the insole is higher than that of prior art. But the drawback of the three-layer insole is that the air permeability thereof turns bad as comparing with prior art. In other words, the patented insoles may have good retention of cushioning properties after wear but the air permeability thereof is bad.
  • the present invention provides a multilayered insole for footwear that has high retention rate of cushioning properties after wear as well as good air permeability.
  • a multilayered insole for footwear comprises a base layer having a first thickness, an intermediate layer having a second thickness and adhered to an upper surface of the base layer, and an upper layer having a third thickness and adhered to a free surface of the intermediate layer.
  • the base and upper layers are both made of a first material formed by foamable polymeric resin compositions.
  • the intermediate layer is made of a second material formed by foamable polymeric resin compositions mixed with recycled foamable polymeric materials.
  • a sum of the first thickness of the base layer and the second thickness of said intermediate layer is larger than 0.5 mm.
  • the third thickness of the upper layer can be from 2 mm to 5 mm.
  • FIG. 1 is a perspective view of an insole according to an embodiment of the present invention
  • FIG. 2 is a sectional view of the insole of FIG. 1 taken along section 2 - 2 .
  • the insole 10 of the present invention generally comprises a base layer 12 , an intermediate layer 14 , an upper layer 16 and a top layer 20 .
  • the base layer 12 which is made of a first foamable material formed by a foamable polyurethane resin, is preferably of generally flat construction with a thickness of 0.5 mm.
  • the base layer 12 for having a thickness specially designed and being made of a foamable material not mixed with any other materials, has a better resistance to compression than any other foamable materials so as to provide a high retention rate of cushioning properties after wear.
  • the intermediate layer 14 is adhered to an upper surface of the base layer 12 and preferably is of generally flat construction.
  • the intermediate layer 14 is made of a second foamable material formed by a foam polyurethane resin mixing with recycled polymeric foam materials.
  • a foamable material for being mixed with recycled polymeric foam materials, has a better air permeability than the first foamable material.
  • the sum of the thickness of the base layer 12 and the thickness of the intermediate layer 14 is larger than 0.5 mm but smaller than 4 mm. In this embodiment, the thickness of the intermediate layer 14 is approximately 3 mm.
  • the upper layer 16 is also made of the first foamable material and adhered to an upper surface of the intermediate layer 14 .
  • the thickness of the upper layer 16 is preferably larger than the sum of the first thickness of the base layer 12 and the second thickness of the intermediate layer 14 . In this embodiment, the thickness of the upper layer 16 is approximately 4 mm.
  • the top layer 20 is made of any suitable fabrics such as cloth. It is adhered to an upper surface of the upper layer 16 to increase the comfort and prevent sliding during wear.
  • the layers of the insole 10 are made of different foamable materials and each of them has a specific thickness.
  • the retention rate of cushioning properties after wear and the air permeability of the insole 10 are both better than the prior art insoles.
  • the retention rate of cushioning properties of the insole 10 when being worn six months, is 90%, but that of prior art insoles is less than 50%.
  • the air permeability of the insole 10 is 500-700 l/m 2 see and that the prior art insoles is only 200-300 l/m 2 sec.

Abstract

A multilayered insole for footwear comprises a base layer having a first thickness, an intermediate layer having a second thickness and adhered to an upper surface of the base layer, and an upper layer having a third thickness and adhered to a free surface of the intermediate layer. The base and upper layers are both made of a first material formed by foamable polymeric resin compositions. The intermediate layer is made of a second material formed by foamable polymeric resin compositions mixed with recycled foamable polymeric materials. A sum of the first thickness of the base layer and the second thickness of said intermediate layer is larger than 0.5 mm. The third thickness of the upper layer can be from 2 mm to 5 mm.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates generally to insoles for footwear, and more particularly to a multilayered insole having good resistance to compression and excellent air permeability.
  • 2. Description of the Related Art
  • U.S. Pat. No. 4,642,912 issued to Gray discloses an improved insole. The insole is characterized in that it consists of three layers. Each of the layers is constructed of flexible foam with a specific compressive strength. As a result, the retention rate of cushioning properties after wear of the insole is higher than that of prior art. But the drawback of the three-layer insole is that the air permeability thereof turns bad as comparing with prior art. In other words, the patented insoles may have good retention of cushioning properties after wear but the air permeability thereof is bad.
  • Thus, there exists a need for an insole having good retention of cushioning properties after wear as well as excellent air permeability.
  • Accordingly, the present invention provides a multilayered insole for footwear that has high retention rate of cushioning properties after wear as well as good air permeability.
    • SUMMARY OF THE INVENTION
  • In accordance with one aspect of the present invention, a multilayered insole for footwear comprises a base layer having a first thickness, an intermediate layer having a second thickness and adhered to an upper surface of the base layer, and an upper layer having a third thickness and adhered to a free surface of the intermediate layer. The base and upper layers are both made of a first material formed by foamable polymeric resin compositions. The intermediate layer is made of a second material formed by foamable polymeric resin compositions mixed with recycled foamable polymeric materials. A sum of the first thickness of the base layer and the second thickness of said intermediate layer is larger than 0.5 mm. The third thickness of the upper layer can be from 2 mm to 5 mm.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Further characteristics and advantages of the insole according to the present invention will become more apparent hereinafter from the following detailed disclosure of a preferred, though not exclusive, embodiment of the invention, which is illustrated, by way of an indicative, but not limitative, example, in the accompanying drawings, where:
  • FIG. 1 is a perspective view of an insole according to an embodiment of the present invention;
  • FIG. 2 is a sectional view of the insole of FIG. 1 taken along section 2-2.
    •  DETAILED DESCRIPTION OF THE PRESENT INVENTION
  • Referring to FIGS. 1 and 2, the insole 10 of the present invention generally comprises a base layer 12, an intermediate layer 14, an upper layer 16 and a top layer 20.
  • The base layer 12, which is made of a first foamable material formed by a foamable polyurethane resin, is preferably of generally flat construction with a thickness of 0.5 mm. The base layer 12, for having a thickness specially designed and being made of a foamable material not mixed with any other materials, has a better resistance to compression than any other foamable materials so as to provide a high retention rate of cushioning properties after wear.
  • The intermediate layer 14 is adhered to an upper surface of the base layer 12 and preferably is of generally flat construction. The intermediate layer 14 is made of a second foamable material formed by a foam polyurethane resin mixing with recycled polymeric foam materials. Such a foamable material, for being mixed with recycled polymeric foam materials, has a better air permeability than the first foamable material. For getting excellent air permeability and good resistance compression, the sum of the thickness of the base layer 12 and the thickness of the intermediate layer 14 is larger than 0.5 mm but smaller than 4 mm. In this embodiment, the thickness of the intermediate layer 14 is approximately 3 mm.
  • The upper layer 16 is also made of the first foamable material and adhered to an upper surface of the intermediate layer 14. The thickness of the upper layer 16 is preferably larger than the sum of the first thickness of the base layer 12 and the second thickness of the intermediate layer 14. In this embodiment, the thickness of the upper layer 16 is approximately 4 mm.
  • The top layer 20 is made of any suitable fabrics such as cloth. It is adhered to an upper surface of the upper layer 16 to increase the comfort and prevent sliding during wear.
  • As described above, we can clearly understand that the layers of the insole 10 are made of different foamable materials and each of them has a specific thickness. As a result, the retention rate of cushioning properties after wear and the air permeability of the insole 10 are both better than the prior art insoles. According to experiments made by the inventor, the retention rate of cushioning properties of the insole 10, when being worn six months, is 90%, but that of prior art insoles is less than 50%. The air permeability of the insole 10 is 500-700 l/m2 see and that the prior art insoles is only 200-300 l/m2 sec.

Claims (6)

1. A multilayered insole for footwear, comprising
a base layer having a first thickness;
an intermediate layer having a second thickness and adhered to an upper surface of said basic layer; and
an upper layer having a third thickness and adhered to a free surface of an intermediate layer;
said base and upper layers being made of a first foamable material formed by foamable polymeric resin compositions;
said intermediate layer being made of a second foamable material formed by foamable polymeric resin compositions mixed with recycled foamable polymeric materials;
a sum of said first thickness of said base layer and said second thickness of said intermediate layer being larger than 0.5 mm; and
said third thickness of said upper layer being 2 mm to 5 mm.
2. The insole of claim 1, wherein the sum of said first thickness of said base layer and said second thickness of said intermediate layer is larger than 0.5 mm but smaller than 4 mm.
3. The insole of claim 1, wherein said first thickness of said base layer is smaller than said second thickness of said intermediate layer.
4. The insole of claim 1, wherein said third thickness of said upper layer is larger than the sum of said first thickness of said base layer and said second thickness of said intermediate layer.
5. The insole of claim 1, wherein said third thickness of said upper layer is 4 mm.
6. The insole of claim 1, further comprising a top layer made of fabrics and adhered to a free surface of said upper layer.
US11/850,360 2006-12-05 2007-09-05 Multilayered insole for footwear Abandoned US20080127527A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW95221418 2006-12-05
TW095221418U TWM322745U (en) 2006-12-05 2006-12-05 Pad for shoes

Publications (1)

Publication Number Publication Date
US20080127527A1 true US20080127527A1 (en) 2008-06-05

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US (1) US20080127527A1 (en)
TW (1) TWM322745U (en)

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US20100063778A1 (en) * 2008-06-13 2010-03-11 Nike, Inc. Footwear Having Sensor System
US20100269375A1 (en) * 2009-04-24 2010-10-28 Nine West Development Corporation Footbed system and footwear construction
US20100275462A1 (en) * 2009-05-04 2010-11-04 Pucci Klary Shoe
WO2011036519A1 (en) * 2009-09-25 2011-03-31 Bocorocco Italia S.R.L. Multilayer insole to be fitted in footwear and the like
US20110099845A1 (en) * 2009-11-03 2011-05-05 Miller Michael J Customized footwear and methods for manufacturing
US20110179675A1 (en) * 2010-01-14 2011-07-28 Miller Michael J Sport specific footwear insole
WO2011133780A2 (en) * 2010-04-22 2011-10-27 Kristan Lisa Hamill Insoles for tracking, data transfer systems and methods involving the insoles, and methods of manufacture
USD665157S1 (en) * 2009-07-09 2012-08-14 Liji Wu Insole
US8739639B2 (en) 2012-02-22 2014-06-03 Nike, Inc. Footwear having sensor system
US20140150291A1 (en) * 2012-11-30 2014-06-05 Scot K LARSEN Impact Resistant Running Shoe Insert
US20150033578A1 (en) * 2013-03-15 2015-02-05 Lisa Ann Hodson Educational method for identifying right and left footwear utilizing a split graphic and corresponding split word footwear insert
US9002680B2 (en) 2008-06-13 2015-04-07 Nike, Inc. Foot gestures for computer input and interface control
US9089182B2 (en) 2008-06-13 2015-07-28 Nike, Inc. Footwear having sensor system
USD741430S1 (en) * 2014-08-05 2015-10-20 Keith Cooks Skateboard deck
US9192816B2 (en) 2011-02-17 2015-11-24 Nike, Inc. Footwear having sensor system
US9279734B2 (en) 2013-03-15 2016-03-08 Nike, Inc. System and method for analyzing athletic activity
US9389057B2 (en) 2010-11-10 2016-07-12 Nike, Inc. Systems and methods for time-based athletic activity measurement and display
US9549585B2 (en) 2008-06-13 2017-01-24 Nike, Inc. Footwear having sensor system
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US9743861B2 (en) 2013-02-01 2017-08-29 Nike, Inc. System and method for analyzing athletic activity
US9756895B2 (en) 2012-02-22 2017-09-12 Nike, Inc. Footwear having sensor system
US9763489B2 (en) 2012-02-22 2017-09-19 Nike, Inc. Footwear having sensor system
US9839394B2 (en) 2012-12-13 2017-12-12 Nike, Inc. Apparel having sensor system
USD807625S1 (en) * 2016-10-18 2018-01-16 Wayne Purcell Insole
US10070680B2 (en) 2008-06-13 2018-09-11 Nike, Inc. Footwear having sensor system
US10130139B2 (en) * 2014-11-25 2018-11-20 Marion Parke Designs, Llc Orthotic insole for a woman's shoe
US10151648B2 (en) 2012-02-22 2018-12-11 Nike, Inc. Footwear having sensor system
US10179263B2 (en) 2011-02-17 2019-01-15 Nike, Inc. Selecting and correlating physical activity data with image data
US10568381B2 (en) 2012-02-22 2020-02-25 Nike, Inc. Motorized shoe with gesture control
US10926133B2 (en) 2013-02-01 2021-02-23 Nike, Inc. System and method for analyzing athletic activity
US11006690B2 (en) 2013-02-01 2021-05-18 Nike, Inc. System and method for analyzing athletic activity
US11033066B2 (en) 2014-11-25 2021-06-15 Marion Parke Designs, Llc Orthotic insole for a woman's shoe
US11413799B2 (en) 2018-05-21 2022-08-16 O2 Partners, Llc Biodegradable and industrially compostable injection molded microcellular flexible foams, and a method of manufacturing the same
US11465377B2 (en) 2018-05-21 2022-10-11 O2 Partners, Llc Biodegradable, industrially compostable, and recyclable injection molded microcellular flexible foams
US20220346497A1 (en) * 2017-05-23 2022-11-03 Nike, Inc. Domed midsole with staged compressive stiffness
US11559106B2 (en) 2019-10-24 2023-01-24 Nike, Inc. Article of footwear and method of manufacturing an article of footwear
US11684111B2 (en) 2012-02-22 2023-06-27 Nike, Inc. Motorized shoe with gesture control
US11912843B2 (en) 2020-11-16 2024-02-27 O2 Partners, Llc Recyclable, biodegradable, and industrially compostable extruded foams, and methods of manufacturing the same

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US20100063778A1 (en) * 2008-06-13 2010-03-11 Nike, Inc. Footwear Having Sensor System
US10398189B2 (en) 2008-06-13 2019-09-03 Nike, Inc. Footwear having sensor system
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WO2011133780A3 (en) * 2010-04-22 2012-03-15 Kristan Lisa Hamill Insoles for tracking, data transfer systems and methods involving the insoles, and methods of manufacture
WO2011133780A2 (en) * 2010-04-22 2011-10-27 Kristan Lisa Hamill Insoles for tracking, data transfer systems and methods involving the insoles, and methods of manufacture
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US11817198B2 (en) 2010-11-10 2023-11-14 Nike, Inc. Systems and methods for time-based athletic activity measurement and display
US10632343B2 (en) 2010-11-10 2020-04-28 Nike, Inc. Systems and methods for time-based athletic activity measurement and display
US9389057B2 (en) 2010-11-10 2016-07-12 Nike, Inc. Systems and methods for time-based athletic activity measurement and display
US9757619B2 (en) 2010-11-10 2017-09-12 Nike, Inc. Systems and methods for time-based athletic activity measurement and display
US11600371B2 (en) 2010-11-10 2023-03-07 Nike, Inc. Systems and methods for time-based athletic activity measurement and display
US11935640B2 (en) 2010-11-10 2024-03-19 Nike, Inc. Systems and methods for time-based athletic activity measurement and display
US10179263B2 (en) 2011-02-17 2019-01-15 Nike, Inc. Selecting and correlating physical activity data with image data
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