US20130074366A1 - Compound structure of mid-sole and insole - Google Patents

Compound structure of mid-sole and insole Download PDF

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Publication number
US20130074366A1
US20130074366A1 US13/241,805 US201113241805A US2013074366A1 US 20130074366 A1 US20130074366 A1 US 20130074366A1 US 201113241805 A US201113241805 A US 201113241805A US 2013074366 A1 US2013074366 A1 US 2013074366A1
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United States
Prior art keywords
sole
insole
mid
compound structure
eva
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
US13/241,805
Inventor
Torng-Haur Yeh
Mao-Tsung Weng
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Individual
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Individual
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Publication date
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Priority to US13/241,805 priority Critical patent/US20130074366A1/en
Publication of US20130074366A1 publication Critical patent/US20130074366A1/en
Abandoned legal-status Critical Current

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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
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/1445—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the midfoot, i.e. the second, third or fourth metatarsal
    • 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
    • A43B13/16—Pieced soles
    • 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
    • A43B13/383—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process pieced
    • 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
    • A43B13/41—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process combined with heel stiffener, toe stiffener, or shank stiffener
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/1425—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the ball of the foot, i.e. the joint between the first metatarsal and first phalange

Definitions

  • the invention relates to a light shoe and, in particular, to a compound structure of mid-sole and insole. Not only is the total weight of the disclosed shoe reduced, it also provides best comfort to the user in vibration absorption.
  • the reaction imposed on the feet during normal walking is about 1.5 to 2 times the body weight. It is as much as 2 to 3 times the body weight during running. Therefore, the people often feel fatigue and pain in the feet. In the long run, there can be damages to knees, waist and even spine.
  • ROC Pat. No. M317186 discloses a lightweight shoe.
  • the recess part of the outer sole is provided with an air pad so that the shoe is largely reduced in its weight.
  • the surface of the air pad is wavy.
  • the hollow interior is filled with air. When a foot rests on the air pad, the enclosed air makes the air pad elastic and evenly distributes the force on the foot bottom.
  • the solid PU outer sole with the density of about 0.6 is made into a trough shape. This reduces the use of material in the bottom and thus the weight thereof.
  • the mid-sole and insole are made of EVA with the density of 0.2 into a compound, and disposed in the trough. Different blocks of the compound are formed from EVA of different hardnesses and properties. Not only is the total weight of shoe effectively reduced to achieve the design of a ‘lightweight shoe’, the invention also provides best comfort to the user.
  • FIG. 1 is a three-dimensional exploded view of the invention.
  • FIG. 2 is an assembly view of the invention.
  • FIG. 1 is a three-dimensional exploded view of the invention.
  • FIG. 2 shows the assembly of the invention.
  • the outer sole 1 is made of PU with a density of about 0.6 into a trough 11 .
  • a mid-sole 2 and an insole 3 made of EVA with a density of about 0.2 are integrally formed or attached together to form a compound, which is disposed in the trough 11 of the outer sole 1 . Since EVA has the good features of being soft, weather-tolerant, elastic, chemical-tolerant, and easy to dye, it is widely used in shoe materials.
  • the mid-sole 2 is made of EVA or the mixture of EVA and corkwood, with a hardness between 65 and 70.
  • the surrounding frame 31 of the insole 3 provides appropriate wrapping function to the foot. To prevent deformation, it is made of EVA with a hardness between 50 and 55.
  • the insole body 32 directly in touch with the foot has to have sufficient elasticity in order to provide best comfort to the user. It is made of elastic EVA with a hardness between 40 and 45.
  • the area corresponding to the inner side of the forefoot on insole body 32 is set as a vibration absorption area 33 .
  • a vibration absorption material is used to reduce the pressure imposed on the foot.
  • the vibration absorption area 33 is made of vibration-absorbing EVA with a hardness between 40 and 45.
  • the solid PU outer sole with a density of 0.6 is made into a trough.
  • the material used in and thus the weight of the PU outer sole are significantly reduced.
  • the mid-sole and insole are formed into a compound with a density of 0.2.
  • the compound is disposed in the trough of the outer sole.
  • Different blocks of the compound are integrally formed from EVA of different hardnesses and properties. Not only is the total weight of the disclosed shoe reduced, it also provides best comfort to the user in vibration absorption.

Abstract

A compound structure of mid-sole and insole is disclosed. A PU outer sole is made into a trough shape in order to reduce the use of PU and thus the weight thereof. The mid-sole and insole are made as a compound of a lightweight material, such as EVA, and disposed inside the trough. The invention thus provides best comfort to the user while the total weight of shoe is effectively reduced.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of Invention
  • The invention relates to a light shoe and, in particular, to a compound structure of mid-sole and insole. Not only is the total weight of the disclosed shoe reduced, it also provides best comfort to the user in vibration absorption.
  • 2. Related Art
  • According to researches of the American Podiatric Medical Association, the reaction imposed on the feet during normal walking is about 1.5 to 2 times the body weight. It is as much as 2 to 3 times the body weight during running. Therefore, the people often feel fatigue and pain in the feet. In the long run, there can be damages to knees, waist and even spine.
  • To reduce the burden on feet during walking or running, the concept of ‘lightweight shoe’ has become popular in the industry of shoes.
  • For example, ROC Pat. No. M317186 discloses a lightweight shoe. The recess part of the outer sole is provided with an air pad so that the shoe is largely reduced in its weight. The surface of the air pad is wavy. The hollow interior is filled with air. When a foot rests on the air pad, the enclosed air makes the air pad elastic and evenly distributes the force on the foot bottom.
    • SUMMARY OF THE INVENTION
  • According to the disclosed compound structure of mid-sole and insole, the solid PU outer sole with the density of about 0.6 is made into a trough shape. This reduces the use of material in the bottom and thus the weight thereof. The mid-sole and insole are made of EVA with the density of 0.2 into a compound, and disposed in the trough. Different blocks of the compound are formed from EVA of different hardnesses and properties. Not only is the total weight of shoe effectively reduced to achieve the design of a ‘lightweight shoe’, the invention also provides best comfort to the user.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • These and other features, aspects and advantages of the invention will become apparent by reference to the following description and accompanying drawings which are given by way of illustration only, and thus are not limitative of the invention, and wherein:
  • FIG. 1 is a three-dimensional exploded view of the invention; and
  • FIG. 2 is an assembly view of the invention.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • The present invention will be apparent from the following detailed description, which proceeds with reference to the accompanying drawings, wherein the same references relate to the same elements.
  • FIG. 1 is a three-dimensional exploded view of the invention. FIG. 2 shows the assembly of the invention. The outer sole 1 is made of PU with a density of about 0.6 into a trough 11. A mid-sole 2 and an insole 3 made of EVA with a density of about 0.2 are integrally formed or attached together to form a compound, which is disposed in the trough 11 of the outer sole 1. Since EVA has the good features of being soft, weather-tolerant, elastic, chemical-tolerant, and easy to dye, it is widely used in shoe materials.
  • In order to support the insole 3, the mid-sole 2 is made of EVA or the mixture of EVA and corkwood, with a hardness between 65 and 70.
  • The surrounding frame 31 of the insole 3 provides appropriate wrapping function to the foot. To prevent deformation, it is made of EVA with a hardness between 50 and 55.
  • The insole body 32 directly in touch with the foot has to have sufficient elasticity in order to provide best comfort to the user. It is made of elastic EVA with a hardness between 40 and 45.
  • The area corresponding to the inner side of the forefoot on insole body 32 is set as a vibration absorption area 33. A vibration absorption material is used to reduce the pressure imposed on the foot. The vibration absorption area 33 is made of vibration-absorbing EVA with a hardness between 40 and 45.
  • According to the invention, the solid PU outer sole with a density of 0.6 is made into a trough. The material used in and thus the weight of the PU outer sole are significantly reduced. The mid-sole and insole are formed into a compound with a density of 0.2. The compound is disposed in the trough of the outer sole. Different blocks of the compound are integrally formed from EVA of different hardnesses and properties. Not only is the total weight of the disclosed shoe reduced, it also provides best comfort to the user in vibration absorption.
  • Although the invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternative embodiments, will be apparent to persons skilled in the art. It is, therefore, contemplated that the appended claims will cover all modifications that fall within the true scope of the invention.

Claims (7)

What is claimed is:
1. A compound structure of mid-sole and insole disposed in a trough formed on an outer sole, the compound structure being made of a lightweight material to reduce the total weight of a shoe and to provide comfort by absorbing vibrations.
2. The compound structure of mid-sole and insole of claim 1, wherein he material of the outer sole is PU with a density of about 0.6.
3. The compound structure of mid-sole and insole of claim 1, wherein the lightweight material of the mid-sole and insole is EVA with a density of about 0.2.
4. The compound structure of mid-sole and insole of claim 3, wherein the mid-sole is made of EVA or a mixture of EVA and corkwood with a hardness between 65 and 70.
5. The compound structure of mid-sole and insole of claim 3, wherein the surrounding frame of the insole is made of EVA with a hardness between 50 and 55.
6. The compound structure of mid-sole and insole of claim 3, wherein the insole body is made of elastic EVA with a hardness between 40 and 45.
7. The compound structure of mid-sole and insole of claim 3, wherein the area of the insole body corresponding to the inner side of the forefoot is made of vibration-absorbing EVA with a hardness between 40 and 45.
US13/241,805 2011-09-23 2011-09-23 Compound structure of mid-sole and insole Abandoned US20130074366A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/241,805 US20130074366A1 (en) 2011-09-23 2011-09-23 Compound structure of mid-sole and insole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/241,805 US20130074366A1 (en) 2011-09-23 2011-09-23 Compound structure of mid-sole and insole

Publications (1)

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US20130074366A1 true US20130074366A1 (en) 2013-03-28

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140259766A1 (en) * 2013-03-15 2014-09-18 Laurence James Shoe Construction
US20150237959A1 (en) * 2012-08-31 2015-08-27 Spenco Medical Corporation Basketball Insole
US20150305437A1 (en) * 2014-04-29 2015-10-29 Black Yak Co., Ltd. Midsole for reducing load applied on knee
US10221310B2 (en) 2014-12-05 2019-03-05 Ljo, Inc. Composition and process of manufacture for a shoe sole component for footwear
IT202000022600A1 (en) * 2020-09-24 2022-03-24 Vibram Spa SOLE FOR SPORTS SHOES

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4597196A (en) * 1984-08-24 1986-07-01 Northwest Podiatric Laboratories, Inc. Orthotic insert and method or making of the same
US5367791A (en) * 1993-02-04 1994-11-29 Asahi, Inc. Shoe sole
US20020056208A1 (en) * 1998-11-16 2002-05-16 Brown Dennis N. Contoured insole for footwear
US20040111920A1 (en) * 2002-12-11 2004-06-17 Salomon S.A. Article of footwear
US20060026866A1 (en) * 2004-08-06 2006-02-09 Schering Plough Healthcare Products Inc. Heel insert
US20060191163A1 (en) * 2005-02-25 2006-08-31 Wolverine World Wide, Inc. Footwear and related method of manufacture
US20070033834A1 (en) * 2005-08-12 2007-02-15 Cheskin Melvyn P Shoe insole
US20070051018A1 (en) * 2005-09-06 2007-03-08 Columbia Insurance Company Bladder with improved construction
US20090165333A1 (en) * 1994-01-26 2009-07-02 Reebok International Ltd. Support and Cushioning System for an Article of Footwear
US20100122471A1 (en) * 2008-11-14 2010-05-20 Converse Inc. Article Of Footwear Having Shock-Absorbing Elements In The Sole
US8296969B2 (en) * 2008-01-16 2012-10-30 Spenco Medical Corporation Triple density gel heel cups

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4597196A (en) * 1984-08-24 1986-07-01 Northwest Podiatric Laboratories, Inc. Orthotic insert and method or making of the same
US5367791A (en) * 1993-02-04 1994-11-29 Asahi, Inc. Shoe sole
US20090165333A1 (en) * 1994-01-26 2009-07-02 Reebok International Ltd. Support and Cushioning System for an Article of Footwear
US20020056208A1 (en) * 1998-11-16 2002-05-16 Brown Dennis N. Contoured insole for footwear
US20040111920A1 (en) * 2002-12-11 2004-06-17 Salomon S.A. Article of footwear
US20060026866A1 (en) * 2004-08-06 2006-02-09 Schering Plough Healthcare Products Inc. Heel insert
US20060191163A1 (en) * 2005-02-25 2006-08-31 Wolverine World Wide, Inc. Footwear and related method of manufacture
US20070033834A1 (en) * 2005-08-12 2007-02-15 Cheskin Melvyn P Shoe insole
US20070051018A1 (en) * 2005-09-06 2007-03-08 Columbia Insurance Company Bladder with improved construction
US8296969B2 (en) * 2008-01-16 2012-10-30 Spenco Medical Corporation Triple density gel heel cups
US20100122471A1 (en) * 2008-11-14 2010-05-20 Converse Inc. Article Of Footwear Having Shock-Absorbing Elements In The Sole

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150237959A1 (en) * 2012-08-31 2015-08-27 Spenco Medical Corporation Basketball Insole
US9788602B2 (en) * 2012-08-31 2017-10-17 Implus Footcare, Llc Basketball insole
US20140259766A1 (en) * 2013-03-15 2014-09-18 Laurence James Shoe Construction
US10238168B2 (en) * 2013-03-15 2019-03-26 Laurence James Shoe construction
US20150305437A1 (en) * 2014-04-29 2015-10-29 Black Yak Co., Ltd. Midsole for reducing load applied on knee
CN105011464A (en) * 2014-04-29 2015-11-04 布来亚克有限公司 Midsole for reducing load applied on knee
US10221310B2 (en) 2014-12-05 2019-03-05 Ljo, Inc. Composition and process of manufacture for a shoe sole component for footwear
US10266689B2 (en) * 2014-12-05 2019-04-23 Ljo, Inc. Composition and process of manufacture for a shoe sole component for footwear
IT202000022600A1 (en) * 2020-09-24 2022-03-24 Vibram Spa SOLE FOR SPORTS SHOES
EP3973806A1 (en) * 2020-09-24 2022-03-30 Vibram S.p.A. Sole for sports footwear

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