CA2569894A1 - Footwear with multi-piece midsole - Google Patents

Footwear with multi-piece midsole Download PDF

Info

Publication number
CA2569894A1
CA2569894A1 CA002569894A CA2569894A CA2569894A1 CA 2569894 A1 CA2569894 A1 CA 2569894A1 CA 002569894 A CA002569894 A CA 002569894A CA 2569894 A CA2569894 A CA 2569894A CA 2569894 A1 CA2569894 A1 CA 2569894A1
Authority
CA
Canada
Prior art keywords
midsole
footwear
article
molded
supporting section
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
CA002569894A
Other languages
French (fr)
Other versions
CA2569894C (en
Inventor
Rory W. Fuerst
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.)
KEEN Inc
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35503613&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2569894(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2569894A1 publication Critical patent/CA2569894A1/en
Application granted granted Critical
Publication of CA2569894C publication Critical patent/CA2569894C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B29D35/14—Multilayered parts
    • B29D35/142—Soles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0027—Footwear characterised by the material made at least partially from a material having special colours
    • 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
    • A43B13/141—Soles; Sole-and-heel integral units characterised by the constructive form with a part of the sole being flexible, e.g. permitting articulation or torsion
    • 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
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/223—Profiled soles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/08—Heel stiffeners; Toe stiffeners
    • A43B23/081—Toe stiffeners
    • A43B23/086—Toe stiffeners made of impregnated fabrics, plastics or the like
    • A43B23/087—Toe stiffeners made of impregnated fabrics, plastics or the like made of plastics

Abstract

Articles of footwear having a unitary midsole with an integrally molded toe cap that extends over the wearer's toes are disclosed, in which the midsole is molded in multiple sections one of which includes the integrally-molded toe cap which are joined to one another to provide the unitary midsole.

Claims (20)

1. An article of footwear having a heel and a toe and an axis extending therebetween and comprising a midsole and an outsole, a. the midsole comprising multiple separate sections including a forefoot-supporting section and a midfoot- and heel-supporting section or sections, these separate sections affixed to one another at one or more joints intersecting the axis, the forefoot-supporting section terminating in an integrally-molded toe cap and b. the outsole extending over multiple separate sections of the midsole and itself having an integrally-molded toe section extending upwards over at least a portion of the midsole toe cap, said outsole concealing at least the majority of at least one of the one or more joints in the midsole.
2. The article of footwear of claim 1 wherein the joint joining the forefoot- supporting section the next adjacent section is located away from an area of maximum flex of the midsole when the article of footwear is being worn.
3. The article of footwear of claim 1 wherein the joint between the forefoot supporting section and the next adjacent section is a stepped joint with the step positioning the two sections relative to one another.
4. The article of footwear of claim 1 wherein the joint has at least two connected segments.
5. The article of footwear of claim 1 wherein the midsole comprises two separate sections affixed to one another at a single joint.
6. The article of footwear of claim 5 wherein the forefoot-supporting section and the midfoot and heel-supporting sections are made of foamed material.
7. The article of footwear of claim 6 wherein the midfoot-and heel-supporting section foamed material differs from the forefoot section foamed material.
8. An article of footwear having a heel and a toe and an axis extending there between and comprising an upper, a midsole and an outsole, a. the midsole being molded and having an integrally-molded toe cap and having the upper attached to the midsole toe cap, and b. the outsole extending over the midsole and itself having an integrally-molded toe section extending upwards over at least a portion of the midsole toe cap.
9. The article of footwear of claim 8 for accommodating a wearer's foot and protecting the wearer's toes against impact, said article of footwear comprising a molded midsole with a molded outsole adhered thereto, the midsole having a forefoot-supporting section located and configured to support at least the wearer's toes and at its toe end extending beyond, in front of and over the tips of the wearer's toes thereby creating an integrally-molded midsole toe cap, and the outsole located and configured to support the forefoot-supporting section of the midsole and to provide an integrally-molded outsole toe cap extending beyond, in front of and over at least a portion of the toe end of the integrally-molded midsole toe cap.
10. The article of footwear of claim 9 wherein the midsole and the outsole are affixed to one another.
11. The article of footwear of claim 10 wherein the midsole toe cap and the outsole toe cap are affixed to one another.
12. A midsole for an article of footwear having a heel and a toe and an axis extending there between, the midsole comprising two separate molded sections, a forefoot-supporting section and a midfoot- and heel-supporting section, these two separate sections affixed to one another at a joint intersecting the axis, and the forefoot-supporting section terminating in an integrally-molded toe cap.
13. The midsole of claim 12 wherein the forefoot-supporting section and the midfoot-and heel-supporting sections are made of foamed material.
14. The midsole of claim 13 wherein the midfoot- and heel-supporting section foamed material differs from the forefoot section foamed material.
15. The midsole of claim 12 wherein the joint between the two sections is a stepped joint with the step positioning the two sections relative to one another.
16. The midsole of claim 15 wherein the joint has at least two connected segments.
17. A method for making a midsole for an article of footwear for a wearer, the midsole extending from the wearer's heel to the wearer's toes and characterized by an integrally-molded toe cap extending over the toes of the wearer, comprising molding a forefoot-supporting section having the integrally-molded toe cap in a two piece mold, molding a rear foot- and heel-supporting section in a two piece mold and joining the toe and forefoot-supporting section and the rear foot- and heel-supporting section at a joint into a unitary midsole.
18. The method of claim 17 wherein the joint is a stepped joint with the step positioning the two sections relative to one another.
19. The method of claim 18 wherein the stepped joint is a segmented joint.
20. The method of claim 19 comprising the additional steps of affixing to the unitary midsole an outsole, said outsole having an integrally-molded toe cap and being configured to conceal at least a portion of the joint.
CA2569894A 2004-06-08 2005-06-08 Footwear with multi-piece midsole Expired - Fee Related CA2569894C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US57832804P 2004-06-08 2004-06-08
US60/578,328 2004-06-08
PCT/US2005/020146 WO2005120275A2 (en) 2004-06-08 2005-06-08 Footwear with multi-piece midsole

Publications (2)

Publication Number Publication Date
CA2569894A1 true CA2569894A1 (en) 2005-12-22
CA2569894C CA2569894C (en) 2012-05-01

Family

ID=35503613

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2569894A Expired - Fee Related CA2569894C (en) 2004-06-08 2005-06-08 Footwear with multi-piece midsole

Country Status (4)

Country Link
US (2) US7290356B2 (en)
JP (2) JP5148276B2 (en)
CA (1) CA2569894C (en)
WO (1) WO2005120275A2 (en)

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Also Published As

Publication number Publication date
JP2012130713A (en) 2012-07-12
JP5148276B2 (en) 2013-02-20
WO2005120275A3 (en) 2007-02-15
US7290356B2 (en) 2007-11-06
US20050268492A1 (en) 2005-12-08
JP2008501487A (en) 2008-01-24
JP5313371B2 (en) 2013-10-09
WO2005120275A2 (en) 2005-12-22
US20080010855A1 (en) 2008-01-17
US7762012B2 (en) 2010-07-27
CA2569894C (en) 2012-05-01

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Effective date: 20210608