WO1993013928A1 - Contoured moulded footwear and method of making same - Google Patents
Contoured moulded footwear and method of making same Download PDFInfo
- Publication number
- WO1993013928A1 WO1993013928A1 PCT/CA1993/000013 CA9300013W WO9313928A1 WO 1993013928 A1 WO1993013928 A1 WO 1993013928A1 CA 9300013 W CA9300013 W CA 9300013W WO 9313928 A1 WO9313928 A1 WO 9313928A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- article
- sole
- footwear
- upper portion
- moulded
- Prior art date
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
- B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
- B29D35/08—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts
- B29D35/081—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts by injection moulding
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/12—Special watertight footwear
-
- 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
- B29D35/10—Producing footwear having preformed soles or heels joined on to preformed uppers using a moulding technique, e.g. by feeding or injecting plastics material between the parts to be joined
Definitions
- the invention relates to the manufacture of moulded footwear in particular to waterproof footwear of which the upper portion and bottom thereof, upon which the foot rests, are integrally moulded.
- the invention provides a waterproof article of footwear comprising an upper portion having integrally moulded sides and bottom and a sole portion attached to the upper portion.
- the shaping of the upper and sole portions is complementary to provide a unitary fit therebetween and the sloping of the upper portion includes bottom and side contouring to provide support for preselected areas of the foot.
- the invention further provides a method for making the aforesaid article of footwear whereby side and bottom elements are integrally moulded using a thermoplastic material to form an upper portion, a sole portion is moulded and the two portions are attached together.
- the moulding of the upper and sole portions is such that the shaping of the same is as described above.
- the said moulding is by means of injection moulding whereby the upper and sole portions are produced one following the other such that the portions become moulded together.
- Figure 1 is a side view of an article of footwear in accordance with the invention.
- Figure 2 is a sectional view of the article of Figure 1 taken at section 2-2 thereof.
- the waterproof article of footwear 10 of the invention comprises an upper portion 20 and a sole portion 30 attached thereto.
- the thermoplastic upper portion 20 is, firstly, integrally moulded as a single unit without need for seams or joins (which can limit the ability of the article to be made waterproof) .
- the thermoplastic sole portion 30 is, secondly, moulded so that the two portions 20, 30 become moulded together once the portions have
- the upper 20 and sole 30 portions are shaped in complementary form to provide a unitary fit when they are moulded together according to the foregoing.
- the upper portion 20 and, therefore, the sole portion 30
- FIG. 10 is shaped so as to include bottom and side contouring to provide support for selected areas of the foot, for example as in the article of Figure 1 which includes contouring in the area of the ball of the foot (C) , the arch of the foot (B) and the heel base (A) .
- This contouring provides
- the bottom 35 of the sole portion 30 preferably includes certain desirable features forming part of the
- the sole portion 30 preferably also includes a rigid bar 50 such as a metal plate within the area of the sole between the heel (A) and arch (B). locations thereof to, primarily,
- the thickness and shaping of the walls 55 of the upper portion 20 are not uniform according to the ⁇ prior art but, . rather, vary according to a predetermined shaping (the
- thermoplastic material used for the upper portion 20 is less rigid, when moulded than that used for the sole portion 30 so that the upper portion provides an appropriate degree of flexibility to the foot and legs of the user, upon wear, and the sole portion provides support, protection, durability and strength.
- the article of footwear of the invention is produced by means of the conventional injection moulding technique incorporating moulding apparatus.
- the apparatus provides for two thermoplastic injection steps, one to produce the upper portion 20 and another to produce the sole portion 30, one following the other, (in selected order) such that the portions thereby become moulded together.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5512041A JPH07507936A (en) | 1992-01-21 | 1993-01-20 | Molded footwear with a predetermined shape and its manufacturing method |
EP93901998A EP0625090A1 (en) | 1992-01-21 | 1993-01-20 | Contoured moulded footwear and method of making same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2059726 CA2059726C (en) | 1992-01-21 | 1992-01-21 | Contoured moulded footwear and method of making same |
CA2,059,726 | 1992-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993013928A1 true WO1993013928A1 (en) | 1993-07-22 |
Family
ID=4149122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA1993/000013 WO1993013928A1 (en) | 1992-01-21 | 1993-01-20 | Contoured moulded footwear and method of making same |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0625090A1 (en) |
JP (1) | JPH07507936A (en) |
AU (1) | AU3341293A (en) |
CA (1) | CA2059726C (en) |
WO (1) | WO1993013928A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996039060A1 (en) * | 1995-06-05 | 1996-12-12 | Frampton Erroll Ellis, Iii | Shoe sole structures |
EP1075801A1 (en) * | 1999-08-12 | 2001-02-14 | Cheng-Hsian Chi | Manufacturing process for a foamed integral shoe body |
US8873914B2 (en) | 2004-11-22 | 2014-10-28 | Frampton E. Ellis | Footwear sole sections including bladders with internal flexibility sipes therebetween and an attachment between sipe surfaces |
US9568946B2 (en) | 2007-11-21 | 2017-02-14 | Frampton E. Ellis | Microchip with faraday cages and internal flexibility sipes |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1002119A (en) * | 1963-05-15 | 1965-08-25 | Desma Werke Gmbh | Improvements in injection-moulding articles of footwear of synthetic plastics materials |
GB1082382A (en) * | 1963-07-25 | 1967-09-06 | Adam Joseph Blumoer | Improvements in or relating to inner soles for footwear |
US4124946A (en) * | 1976-04-02 | 1978-11-14 | Scholl, Inc. | Built-in insole and article of footwear containing same |
FR2546041A1 (en) * | 1983-05-17 | 1984-11-23 | Saint Marcel Mfg | Method for the injection of an article made of a synthetic material, mould for carrying out this method, and article such as an item of footwear obtained by this method |
GB2146282A (en) * | 1983-09-07 | 1985-04-17 | Pickens Footwear Co | Moulding water-proof footwear |
-
1992
- 1992-01-21 CA CA 2059726 patent/CA2059726C/en not_active Expired - Fee Related
-
1993
- 1993-01-20 JP JP5512041A patent/JPH07507936A/en active Pending
- 1993-01-20 WO PCT/CA1993/000013 patent/WO1993013928A1/en not_active Application Discontinuation
- 1993-01-20 AU AU33412/93A patent/AU3341293A/en not_active Abandoned
- 1993-01-20 EP EP93901998A patent/EP0625090A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1002119A (en) * | 1963-05-15 | 1965-08-25 | Desma Werke Gmbh | Improvements in injection-moulding articles of footwear of synthetic plastics materials |
GB1082382A (en) * | 1963-07-25 | 1967-09-06 | Adam Joseph Blumoer | Improvements in or relating to inner soles for footwear |
US4124946A (en) * | 1976-04-02 | 1978-11-14 | Scholl, Inc. | Built-in insole and article of footwear containing same |
FR2546041A1 (en) * | 1983-05-17 | 1984-11-23 | Saint Marcel Mfg | Method for the injection of an article made of a synthetic material, mould for carrying out this method, and article such as an item of footwear obtained by this method |
GB2146282A (en) * | 1983-09-07 | 1985-04-17 | Pickens Footwear Co | Moulding water-proof footwear |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996039060A1 (en) * | 1995-06-05 | 1996-12-12 | Frampton Erroll Ellis, Iii | Shoe sole structures |
EP1075801A1 (en) * | 1999-08-12 | 2001-02-14 | Cheng-Hsian Chi | Manufacturing process for a foamed integral shoe body |
US9271538B2 (en) | 2004-11-22 | 2016-03-01 | Frampton E. Ellis | Microprocessor control of magnetorheological liquid in footwear with bladders and internal flexibility sipes |
US8925117B2 (en) | 2004-11-22 | 2015-01-06 | Frampton E. Ellis | Clothing and apparel with internal flexibility sipes and at least one attachment between surfaces defining a sipe |
US8959804B2 (en) | 2004-11-22 | 2015-02-24 | Frampton E. Ellis | Footwear sole sections including bladders with internal flexibility sipes therebetween and an attachment between sipe surfaces |
US9107475B2 (en) | 2004-11-22 | 2015-08-18 | Frampton E. Ellis | Microprocessor control of bladders in footwear soles with internal flexibility sipes |
US8873914B2 (en) | 2004-11-22 | 2014-10-28 | Frampton E. Ellis | Footwear sole sections including bladders with internal flexibility sipes therebetween and an attachment between sipe surfaces |
US9339074B2 (en) | 2004-11-22 | 2016-05-17 | Frampton E. Ellis | Microprocessor control of bladders in footwear soles with internal flexibility sipes |
US9642411B2 (en) | 2004-11-22 | 2017-05-09 | Frampton E. Ellis | Surgically implantable device enclosed in two bladders configured to slide relative to each other and including a faraday cage |
US9681696B2 (en) | 2004-11-22 | 2017-06-20 | Frampton E. Ellis | Helmet and/or a helmet liner including an electronic control system controlling the flow resistance of a magnetorheological liquid in compartments |
US10021938B2 (en) | 2004-11-22 | 2018-07-17 | Frampton E. Ellis | Furniture with internal flexibility sipes, including chairs and beds |
US11039658B2 (en) | 2004-11-22 | 2021-06-22 | Frampton E. Ellis | Structural elements or support elements with internal flexibility sipes |
US11503876B2 (en) | 2004-11-22 | 2022-11-22 | Frampton E. Ellis | Footwear or orthotic sole with microprocessor control of a bladder with magnetorheological fluid |
US9568946B2 (en) | 2007-11-21 | 2017-02-14 | Frampton E. Ellis | Microchip with faraday cages and internal flexibility sipes |
Also Published As
Publication number | Publication date |
---|---|
EP0625090A1 (en) | 1994-11-23 |
CA2059726A1 (en) | 1993-07-22 |
CA2059726C (en) | 1996-11-19 |
JPH07507936A (en) | 1995-09-07 |
AU3341293A (en) | 1993-08-03 |
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