US20220378152A1 - Composite insole structure - Google Patents

Composite insole structure Download PDF

Info

Publication number
US20220378152A1
US20220378152A1 US17/369,095 US202117369095A US2022378152A1 US 20220378152 A1 US20220378152 A1 US 20220378152A1 US 202117369095 A US202117369095 A US 202117369095A US 2022378152 A1 US2022378152 A1 US 2022378152A1
Authority
US
United States
Prior art keywords
insole
insole body
heel element
segment
composite
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
US17/369,095
Other languages
English (en)
Inventor
Yi-Yao CHEN
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.)
Found Fair Plastic Industrial Co Ltd
Original Assignee
Found Fair Plastic Industrial Co Ltd
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 Found Fair Plastic Industrial Co Ltd filed Critical Found Fair Plastic Industrial Co Ltd
Assigned to FOUND FAIR PLASTIC INDUSTRIAL CO., LTD. reassignment FOUND FAIR PLASTIC INDUSTRIAL CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, Yi-yao
Publication of US20220378152A1 publication Critical patent/US20220378152A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials
    • 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
    • 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
    • A43B7/144—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 heel, i.e. the calcaneus bone

Definitions

  • the present disclosure relates to insoles and, more particularly, to a composite insole structure comprising non-foam elastomer.
  • An insole is mounted inside the shoe in an attempt to overcome the aforesaid drawback of the prior art.
  • commercially-available insoles are also made of EVA foam, EVA mixed foam, PU or latex and are not specially designed to address the aforesaid drawback of the prior art.
  • the insole thus made provides the same support force to the ball, arch and heel of the human foot. As a result, the commercially-available insoles are unable to effectively overcome the aforesaid drawback of the prior art.
  • the present disclosure provides a composite insole structure, comprising: an insole body being oblong and having a front segment corresponding in position to a human foot's ball, a rear segment corresponding in position to the human foot's heel, and a middle segment connecting the front segment and the rear segment, wherein the insole body is made of a foam by foaming and has an upper surface facing upward and a lower surface facing downward, with a superficial layer disposed on the upper surface of the insole body and adapted to come into contact with the human foot's sole; and a heel element made of a plastic and corresponding in shape to the rear segment of the insole body, wherein a middle area of the heel element is of greater thickness than a peripheral area of the heel element, wherein the middle area of the heel element is not only arched to be centrally raised but also thinned toward the edge of the middle area radially, wherein the heel element is disposed at the rear segment of the lower surface of the insole body.
  • the composite insole structure of the present disclosure uses different levels of material hardness to provide different support forces at different positions of the human foot's ball, thereby overcoming the aforesaid drawback of the prior art.
  • the insole body is made of foam, such as EVA, PU, latex or gel form (thermoplastic rubber cross-linking foam), by foaming, and the range of optimal hardness of the insole body is 50 ⁇ 80 OO.
  • foam such as EVA, PU, latex or gel form (thermoplastic rubber cross-linking foam), by foaming, and the range of optimal hardness of the insole body is 50 ⁇ 80 OO.
  • the heel element is made of PU gel, styrene block copolymer or natural rubber and has hardness of 35 ⁇ 75 OO. Furthermore, the heel element is non-foam elastomer and is able to resist compression and resultant permanent deformation, thereby being able to bear the weight of a human being without ending up in deformation.
  • the thickness of the thickest portion of the heel element is one to three times greater than the thickness of the rear segment of the insole body.
  • FIG. 1 is a perspective view of the present disclosure.
  • FIG. 2 is an exploded view of the present disclosure.
  • FIG. 3 is a cross-sectional view taken along line 3 - 3 in FIG. 1 .
  • FIG. 4 is a cross-sectional view taken along line 4 - 4 in FIG. 1 .
  • a composite insole structure of the present disclosure comprises an insole body 10 and a heel element 30 .
  • the insole body 10 is oblong and has a front segment 11 corresponding in position to the ball of the human foot, a rear segment 12 corresponding in position to the heel of the human foot, and a middle segment 13 connecting the front segment 11 and the rear segment 12 .
  • the insole body 10 is manufactured by performing a foaming process on a foaming material, such as EVA, PU, latex or gel form (thermoplastic rubber cross-linking foam or rubber foam.
  • the hardness of the insole body 10 complies with ASTM D2204-5 specified by the United States. Regarding its grading standard, Shore Durometer Hardness is of 12 grades, depending on usage needs.
  • the hardness of the insole body of the present disclosure is preferably 50 ⁇ 80 OO in accordance with the grading standard in order to be comfortable.
  • the insole body 10 has an upper surface 14 facing upward and a lower surface 15 facing downward.
  • the edge of the upper surface 14 of the insole body 10 has a flange 16 which extends upward. Starting from the front segment 11 , the flange 16 protrudes from the upper surface 14 of the insole body 10 and extends toward the rear segment 12 .
  • the length of the extension of the flange 16 located at the middle segment 13 and corresponding in position to the arch is greater than the length of the extension of the flange 16 located at the other positions, such that the arch portion of the insole body 10 fits the human foot well.
  • a superficial layer 20 is disposed on the upper surface 11 of the insole body 10 and adapted to be in contact with the sole of the human foot.
  • the superficial layer 20 is made of polyester, nylon, cotton or hemp and is in the form of woven fabric or non-woven fabric to enable the human foot to feel comfortable.
  • a join surface 17 is disposed at the rear segment 12 of the insole body 10 and corresponds in position to the lower surface 15 of the insole body 10 .
  • a height difference is defined between the join surface 17 and the middle segment 13 .
  • the superficial layer 20 is attached to the upper surface 11 of the insole body 10 by adhesion or high frequency welding.
  • the heel element 30 is made of a plastic, such as PU gel, styrene block copolymer or natural rubber and is able to resist compression and resultant permanent deformation, thereby being able to bear the weight of a human being without ending up in deformation.
  • the hardness of the heel element 30 is 35-75 OO in accordance with the grading standard of ASTM D2204-5.
  • the heel element 30 corresponds in shape to the rear segment 12 of the insole body 10 .
  • the heel element 30 is thicker at the middle area than at the peripheral area; hence, the middle area of the heel element 30 is arched to be centrally raised and thus thinned toward the edge of the middle area radially.
  • the edge of the heel element 30 has an arcuate lead angle 31 to not only connect to the edge of the rear segment 12 of the insole body 10 but also enable the insole to fit to the inside of the shoe when placed therein.
  • the thickness of the thickest portion of the heel element 30 is one to three times greater than the thickness of the rear segment 12 of the insole body 10 . For instance, if the thickness of the rear segment 12 of the insole body 10 is 4 mm, the thickness of the thickest portion of the heel element will be 4-12 mm. Therefore, the support provided by the composite insole structure is satisfactory. If the heel element 30 is overly thin, the support will be weak.
  • the heel element 30 is overly thick, not only will the heel portion of the sole be raised upward to cause discomfort to a shoe wearer, but the insole will also take up so much space in the shoe that the shoe will be rendered unfit.
  • the heel element 30 is disposed at the join surface 17 of the rear segment 12 of the insole body 10 .
  • the height difference defined between the front edge of the heel element 30 and the lower surface 15 of the insole body 10 and corresponding in position to the middle segment 13 of the insole body 10 can be eliminated.
  • the heel element 30 and the insole body 10 are coupled together by adhesion, secondary injection, or hot pressing.
  • the insole body and heel element must provide their respective appropriate levels of strength of support forces to the human foot.
  • the length of the heel element 30 is less than or equal to a half of the length of the insole body 10 or preferably ranges from a half to a quarter of the length of the insole body 10 .
  • the heel element 30 extends from the rear end of the insole body 10 in the direction of the front segment 11 to the middle of the middle segment 13 .
  • the composite insole structure of the present disclosure is advantageous in that a user can directly put the composite insole structure inside the shoe.
  • the insole body and heel element of the composite insole structure have different levels of hardness and are made of different materials.
  • the heel element is raised in order to compensate for the shoe sole's depression deformation which might otherwise cause discomfort to the human foot.
  • the heel element is made of a plastic and thus is able to resist compression and resultant permanent deformation, thereby being able to bear the weight of a human being without ending up in deformation.
  • the composite insole structure of the present disclosure is effective in spreading a load and thereby precluding the shoe sole's depression deformation otherwise arising from lengthy compression typical of conventional shoe soles made of EVA. Therefore, the composite insole structure of the present disclosure renders shoe soles comfortable, reduces a waste of resources, and reduces carbon emissions to thereby contribute to environmental sustainability.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US17/369,095 2021-05-25 2021-07-07 Composite insole structure Abandoned US20220378152A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW110118926 2021-05-25
TW110118926A TW202245645A (zh) 2021-05-25 2021-05-25 複合式鞋墊結構

Publications (1)

Publication Number Publication Date
US20220378152A1 true US20220378152A1 (en) 2022-12-01

Family

ID=84193605

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/369,095 Abandoned US20220378152A1 (en) 2021-05-25 2021-07-07 Composite insole structure

Country Status (3)

Country Link
US (1) US20220378152A1 (zh)
JP (1) JP2022181152A (zh)
TW (1) TW202245645A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD981097S1 (en) * 2020-10-29 2023-03-21 Remington Products Company Heel cup

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541184A (en) * 1983-10-13 1985-09-17 Spectrum Sports, Inc. Insole
US5212894A (en) * 1990-02-07 1993-05-25 Michael Paparo Golf shoe insoles for improving the golf swing
US20010045028A1 (en) * 1999-12-03 2001-11-29 Laura Crane Gel insoles with lower heel and toe recesses having thin spring walls
US20100126044A1 (en) * 2008-11-26 2010-05-27 Russell Davis Footwear Sole with Honeycomb Reinforcement Shank, Fabric Layer, and Polymer Components
US9510643B2 (en) * 2012-03-09 2016-12-06 Jonathan A. Blum Sport orthotics
US9560896B1 (en) * 2014-02-12 2017-02-07 Soxsols, Llc Insole for footwear
US9655404B2 (en) * 2013-06-14 2017-05-23 Superfeet Worldwide, Inc. Contoured insoles for footwear
US20180070670A1 (en) * 2015-05-28 2018-03-15 Implus Footcare, Llc Shoe Insole
US20180110291A1 (en) * 2015-05-28 2018-04-26 Implus Footcare, Llc Contoured Support Shoe Insole
US20180132565A1 (en) * 2015-05-28 2018-05-17 Implus Footcare, Llc Contoured Support Shoe Insole
US20180140040A1 (en) * 2015-05-28 2018-05-24 Implus Footcare, Llc Shoe Insole
US20190200698A1 (en) * 2018-01-04 2019-07-04 Darco International, Inc. Contoured peg insole
US10441023B2 (en) * 2011-02-02 2019-10-15 Implus Footcare, Llc Flow insole
US20190313736A1 (en) * 2018-04-17 2019-10-17 San Antonio Shoe, Inc. Footbeds Having Varying Compression Characteristics
US20210186154A1 (en) * 2018-06-28 2021-06-24 Kyoraku Co., Ltd. Structure, manufacturing method for structure and system for manufacturing structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0445404U (zh) * 1990-08-20 1992-04-17
US8453346B2 (en) * 2007-08-24 2013-06-04 Orthosole Limited, A Guernsey Limited Company Orthotic foot device with removable support components and method of making same

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541184A (en) * 1983-10-13 1985-09-17 Spectrum Sports, Inc. Insole
US5212894A (en) * 1990-02-07 1993-05-25 Michael Paparo Golf shoe insoles for improving the golf swing
US20010045028A1 (en) * 1999-12-03 2001-11-29 Laura Crane Gel insoles with lower heel and toe recesses having thin spring walls
US20100126044A1 (en) * 2008-11-26 2010-05-27 Russell Davis Footwear Sole with Honeycomb Reinforcement Shank, Fabric Layer, and Polymer Components
US10441023B2 (en) * 2011-02-02 2019-10-15 Implus Footcare, Llc Flow insole
US9510643B2 (en) * 2012-03-09 2016-12-06 Jonathan A. Blum Sport orthotics
US9655404B2 (en) * 2013-06-14 2017-05-23 Superfeet Worldwide, Inc. Contoured insoles for footwear
US9560896B1 (en) * 2014-02-12 2017-02-07 Soxsols, Llc Insole for footwear
US20180070670A1 (en) * 2015-05-28 2018-03-15 Implus Footcare, Llc Shoe Insole
US20180110291A1 (en) * 2015-05-28 2018-04-26 Implus Footcare, Llc Contoured Support Shoe Insole
US20180132565A1 (en) * 2015-05-28 2018-05-17 Implus Footcare, Llc Contoured Support Shoe Insole
US20180140040A1 (en) * 2015-05-28 2018-05-24 Implus Footcare, Llc Shoe Insole
US20190200698A1 (en) * 2018-01-04 2019-07-04 Darco International, Inc. Contoured peg insole
US20190313736A1 (en) * 2018-04-17 2019-10-17 San Antonio Shoe, Inc. Footbeds Having Varying Compression Characteristics
US20210186154A1 (en) * 2018-06-28 2021-06-24 Kyoraku Co., Ltd. Structure, manufacturing method for structure and system for manufacturing structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD981097S1 (en) * 2020-10-29 2023-03-21 Remington Products Company Heel cup

Also Published As

Publication number Publication date
TW202245645A (zh) 2022-12-01
JP2022181152A (ja) 2022-12-07

Similar Documents

Publication Publication Date Title
US7685744B2 (en) Arch support insole
EP2833751B1 (en) Sole structure for article of footwear
US6631568B2 (en) Insole for fitness and recreational walking
US5435077A (en) Layered cushioning system for shoe soles
US8713818B2 (en) Cushioned shoe construction
US20080271340A1 (en) Gel Insole
US20070245594A1 (en) Insole assembly for increasing weight of footwear and heavy footwear having weight-increasing midsole/outsole
US20090077830A1 (en) Seesaw- motion footwear sole
US20110119959A1 (en) External stabilizing structure for work boots
US20120047767A1 (en) Anatomical shoe insert assembly
MX2010010602A (es) Dispositivo para caminar.
US20220378152A1 (en) Composite insole structure
JPH06277106A (ja) 履物用中敷き
KR20090012624A (ko) 탄성부재가 구비된 신발
US4908961A (en) Flexible shoe with sectioned insole
KR101685112B1 (ko) 하이힐용 안창
US6694648B2 (en) Metatarsal arch support
CA3063112A1 (en) Footwear with anti-puncture sole membrane
US20130318817A1 (en) Footwear with integrated energy wave sockliner
ZA200604977B (en) Insole assembly for increasing weight of footwear and heavy footwear having weight-increasing midsole/outsole
CN216059428U (zh) 一种复合式鞋垫结构
JP2006158600A (ja) 靴中敷き
US20070232708A1 (en) Method for forming a sole shape for footwear and for a cup insole, and article
CN113317590A (zh) 一种复合式鞋垫结构
TWM616550U (zh) 複合式鞋墊結構

Legal Events

Date Code Title Description
AS Assignment

Owner name: FOUND FAIR PLASTIC INDUSTRIAL CO., LTD., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHEN, YI-YAO;REEL/FRAME:056863/0576

Effective date: 20210519

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION