EP0894447A1 - Partie de chaussure comprenant une portion avant et arrière et chaussure pourvue de cette partie - Google Patents

Partie de chaussure comprenant une portion avant et arrière et chaussure pourvue de cette partie Download PDF

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Publication number
EP0894447A1
EP0894447A1 EP97305638A EP97305638A EP0894447A1 EP 0894447 A1 EP0894447 A1 EP 0894447A1 EP 97305638 A EP97305638 A EP 97305638A EP 97305638 A EP97305638 A EP 97305638A EP 0894447 A1 EP0894447 A1 EP 0894447A1
Authority
EP
European Patent Office
Prior art keywords
open end
lower open
shell
shoe
toe
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.)
Withdrawn
Application number
EP97305638A
Other languages
German (de)
English (en)
Inventor
Eddie 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.)
Individual
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
Application filed by Individual filed Critical Individual
Priority to EP97305638A priority Critical patent/EP0894447A1/fr
Priority to CA002211851A priority patent/CA2211851A1/fr
Publication of EP0894447A1 publication Critical patent/EP0894447A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0205—Uppers; Boot legs characterised by the material
    • A43B23/0235—Different layers of different material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0245—Uppers; Boot legs characterised by the constructive form
    • A43B23/025—Uppers; Boot legs characterised by the constructive form assembled by stitching
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0245—Uppers; Boot legs characterised by the constructive form
    • A43B23/0295—Pieced uppers
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B9/00—Footwear characterised by the assembling of the individual parts

Definitions

  • This invention relates to shoes, more particularly to a shoe part having toe and heel portions and shoes which employ the shoe part.
  • uppers are made by utilizing leathers, plastics, fabrics, or a combination thereof.
  • One of the prerequisites for the uppers is that these materials should possesses considerable softness.
  • the materials are tailored into pieces to form different zones of uppers, which are then combined with each other by a stitching process.
  • the so-made uppers can present an appropriate shape of the uppers, since the tailored pieces themselves are originally flat, the three-dimensional shape of the uppers are achieved by virtue of laborious conventional works to form toe, heel and metatarsal portions.
  • Molding processes such as, injection-molding or other molding processes, have eliminated the above-described laborious problems of the stitching processes because the portions, such as, the toe, heel and metatarsal portions, of a shoe can be formed into a one-piece structure by a molding process.
  • one-piece molded shell structures are used as lowers for shoes having uppers and lowers and as uppers for shoes which have no lowers.
  • One-piece molded structures which are molded together with insoles as unitary constructions, are more or less disadvantageous when they are used in making shoes or boots having uppers and lowers because the bottom ends of the structures are closed by the insoles. Due to the presence of a closed bottom which has no access to the interior of the molded structure, the process for binding the upper and lower, such as by stitching, cementing, etc., has to be conducted by inserting tools from the upper end of the upper, which is narrow and remote from the location where the upper and lower are to be bound, thereby resulting in inconveniences in making such boots. Especially, it is difficult to conduct a watertight sealing process by inserting tools into the lower through the upper end of the upper. Owing to this reason, the boots suggested heretofore were not provided with any watertight seal at the seams of the uppers and lowers thereof.
  • Figure 1 shows one of the boots which was suggested to use a one-piece molded lower 1 with an integral insole 2 in which a cut line 3 extends in a longitudinal direction from the toe portion to the heel portion.
  • the boot is not provided with any watertight seal at the stitched seam of the upper and lower thereof.
  • the cut line is normally in a closed position because the portions of the cut insole 2 on two sides of the cut line 3, which normally lay flat, act as an obstruction. It is necessary to flex these portions so as to remove the obstruction if the cut line is to be opened.
  • Such a cut line is not suitable for use as an entrance for tooling in the stitching, cementing or sealing operation because the obstruction existing along the cut line must be removed with an additional tool which can in turn impede entrance through the cut line.
  • An object of the invention is to provide a reinforced one-piece molded hollow shoe part for use as a lower or an upper of a shoe, the shoe part having a lower open end with a reinforcing flange to obviate the deformation problem commonly encountered with the conventional shoe part or shell structures having bottom open ends.
  • Another object of the invention is to provide a one-piece molded hollow shoe part for use as a lower of a shoe or boot, the shoe part having a lower open end with an inwardly projecting flange to define an access opening which is normally or constantly open so as to facilitate tooling during stitching, cementing and sealing operations.
  • Still another object of the invention is to provide a shoe or boot which is watertight both at the seam of the upper and lower thereof and at the seam of the lower and the sole thereof.
  • a shoe part according to the present invention comprises a lower having a one-piece molded shell with an upper open end and a lower open end.
  • the shell includes a toe portion, a heel portion and two opposing side portions, which interconnect the toe and heel portions between the upper and lower open ends.
  • the lower open end has a flange which extends continuously along and projects inwardly from the lower open end.
  • the flange has a looped edge which defines an opening with a size smaller than the cross-section of the lower open end.
  • the looped edge has edge portions which are opposing one another in a direction transverse to a line extending from the toe portion to the heel portion and which are normally spaced apart from one another.
  • a watertight boot comprises an upper, a lower and a sole, wherein the shoe part of the present invention is used as the lower.
  • the upper open end of the shoe part is connected to the upper, while the lower open end of the shoe part is connected to the sole.
  • the seam between the upper and the lower is made watertight by providing a waterproof layer on the seam.
  • a hollow shoe part embodying the present invention is shown to include a one-piece molded shell 10 with an upper open end 11 and a lower open end 12.
  • the shell 10 include a toe portion 13, a heel portion 14, and two opposing side portions 15 which interconnect the toe and heel portions 13 and 14.
  • the lower open end 12 has a flange 16 which extends continuously along, and projects inwardly from the lower open end 12.
  • a looped edge 17 of the flange 16 confines an opening 18 which extends from the toe portion 13 to the heel portion 14.
  • the size of the opening 18 is smaller than the cross-section of the lower open end 12.
  • the shell 10 can be formed by injection molding or other known molding processes. Materials which are used conventionally in making lowers may be used to form the shell 10 of the invention.
  • the flange 16 as formed strengthens the lower open end 12 of the shell 10 against deformation and that the opening 18 can provide easy access to the inside of the shell 10 for tooling during stitching, cementing and sealing operations.
  • the flange 16 is arranged so that a rounded corner 19 is formed at the lower open end 12 to provide conformity with the foot of the user.
  • FIG 3 shows a boot 20 of a preferred embodiment according to the invention, wherein elements similar to those shown in Figure 2 are designated by similar reference numerals.
  • the embodiment comprises an upper 21, a lower 22, a midsole 23 and an outsole 24.
  • the lower 22 is made of a waterproof material, such as, polyurethane, polyvinylchloride or other rubbery material.
  • the upper 21 is made from a relatively flexible waterproof leather or leather-like material.
  • the midsole 23 is made by molding an ethylene vinyl acetate polymer.
  • the outsole 24 is made from an abrasion-resistant rubber.
  • the upper 21 is fabricated in a conventional manner and includes an ankle area 21a and eyelets 21b for threading a shoe lace.
  • the lower 22 used in this embodiment is the one-piece molded shell 10 shown in Figure 2.
  • the upper open end 11 of the lower 22 is connected to the lower end of the upper 21, and the lower open end 12 thereof is connected to the midsole 23.
  • a seam 25 is formed where the lower end of the upper 21 and the upper open end 11 of the lower 22 is jointed by stitching.
  • a waterproof layer 26 is formed on the seam 25 as shown in Figure 4.
  • the lower 22 is first connected to the upper 21 via a stitching process, thereby forming the seam 25 therebetween.
  • the stitched seam 25 is then sealed by providing the waterproof layer 26 on the stitched seam 25.
  • the waterproof layer 26 may be provided in a conventional manner, such as by applying a waterproof coating to the stitched seam 25, or by adhesively bonding a waterproof tape to the stitched seam 25. Due to the presence of the opening 18 at the bottom of the lower 22, it is convenient to insert tools via the opening 18 to proceed with a sealing operation at the seam 25. After the sealing operation, the bottom open end 12 of the lower 22 is connected to the midsole 23 and the outsole 24 in a conventional manner.
  • the lower open end 12 of the lower 22 is connected to an insole 28 by a stitching process and then cemented to the midsole 23 in a conventional manner.
  • a waterproof layer 27 is formed by applying a waterproof coating or cementing a waterproof tape to the bottom surface of the insole 28 and to the adjoining surfaces of the midsole 23 and the lower 22 in a conventional manner.
  • the flange 16 can provide more area for cementing with the midsole 23.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP97305638A 1997-07-28 1997-07-28 Partie de chaussure comprenant une portion avant et arrière et chaussure pourvue de cette partie Withdrawn EP0894447A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97305638A EP0894447A1 (fr) 1997-07-28 1997-07-28 Partie de chaussure comprenant une portion avant et arrière et chaussure pourvue de cette partie
CA002211851A CA2211851A1 (fr) 1997-07-28 1997-07-29 Partie de soulier avec parties avant et arriere et souliers utilisant cette partie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97305638A EP0894447A1 (fr) 1997-07-28 1997-07-28 Partie de chaussure comprenant une portion avant et arrière et chaussure pourvue de cette partie
CA002211851A CA2211851A1 (fr) 1997-07-28 1997-07-29 Partie de soulier avec parties avant et arriere et souliers utilisant cette partie

Publications (1)

Publication Number Publication Date
EP0894447A1 true EP0894447A1 (fr) 1999-02-03

Family

ID=25679507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97305638A Withdrawn EP0894447A1 (fr) 1997-07-28 1997-07-28 Partie de chaussure comprenant une portion avant et arrière et chaussure pourvue de cette partie

Country Status (2)

Country Link
EP (1) EP0894447A1 (fr)
CA (1) CA2211851A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1466731A (fr) * 1966-01-29 1967-01-20 Marquet S A Ets Procédé pour la fabrication d'articles chaussants destinés, notamment, aux sports d'hiver et articles conformes à ceux obtenus
WO1990006067A1 (fr) * 1988-11-28 1990-06-14 Lowa-Schuhfabrik Lorenz Wagner Gmbh & Co. Kg Chaussure caracterisee par une trepointe en plastique
US5189814A (en) * 1990-03-16 1993-03-02 La Crosse Footwear, Inc. Reinforced rubber footwear product
FR2737393A1 (fr) * 1995-08-04 1997-02-07 Rossignol Sa Chaussure pour la pratique d'un sport de glisse
WO1997009893A1 (fr) * 1995-09-14 1997-03-20 Salomon S.A. Procede d'assemblage d'une chaussure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1466731A (fr) * 1966-01-29 1967-01-20 Marquet S A Ets Procédé pour la fabrication d'articles chaussants destinés, notamment, aux sports d'hiver et articles conformes à ceux obtenus
WO1990006067A1 (fr) * 1988-11-28 1990-06-14 Lowa-Schuhfabrik Lorenz Wagner Gmbh & Co. Kg Chaussure caracterisee par une trepointe en plastique
US5189814A (en) * 1990-03-16 1993-03-02 La Crosse Footwear, Inc. Reinforced rubber footwear product
FR2737393A1 (fr) * 1995-08-04 1997-02-07 Rossignol Sa Chaussure pour la pratique d'un sport de glisse
WO1997009893A1 (fr) * 1995-09-14 1997-03-20 Salomon S.A. Procede d'assemblage d'une chaussure

Also Published As

Publication number Publication date
CA2211851A1 (fr) 1999-01-29

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