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GB2443383A - Method for making a shoe - Google Patents

Method for making a shoe Download PDF

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Publication number
GB2443383A
GB2443383A GB0621886A GB0621886A GB2443383A GB 2443383 A GB2443383 A GB 2443383A GB 0621886 A GB0621886 A GB 0621886A GB 0621886 A GB0621886 A GB 0621886A GB 2443383 A GB2443383 A GB 2443383A
Authority
GB
United Kingdom
Prior art keywords
mold
sole
sole blank
shoe
blank
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
GB0621886A
Other versions
GB0621886D0 (en
GB2443383B (en
Inventor
Cheng-Hsian Chi
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 GB0621886A priority Critical patent/GB2443383B/en
Publication of GB0621886D0 publication Critical patent/GB0621886D0/en
Publication of GB2443383A publication Critical patent/GB2443383A/en
Application granted granted Critical
Publication of GB2443383B publication Critical patent/GB2443383B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/28—Soles; Sole-and-heel integral units characterised by their attachment, also attachment of combined soles and heels
    • A43B13/32—Soles; Sole-and-heel integral units characterised by their attachment, also attachment of combined soles and heels by adhesives
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/26—Hot fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/543—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81811—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29D35/065—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 by compression moulding, vulcanising or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/245—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool the heat transfer being achieved contactless, e.g. by radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/50—Footwear, e.g. shoes or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/50—Footwear, e.g. shoes or parts thereof
    • B29L2031/504—Soles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

A method for making a shoe includes the steps of: a) placing a foamed sole blank (20) and an upper (30) in a mold (50), the upper (30) being superimposed on the sole blank (20) and having a last (40) inserted therein; b) heating the mold (50) to a temperature ranging from 110 to 1S0{C so that the sole blank (20) is softened and bonded to the upper (30), and so that the sole blank (20) is formed into a shape of a sole of the shoe; and. c) cooling the mold (50) The sole blank (20) is larger than the sole by a volume of 12-45%.

Description

1 2443383
METHOD FOR MAKING A SHOE
The invention relates to a method for making a shoe, more particularly to a method for making a shoe in which a sole blank of the shoe can be assembled with an out sole and an upper of the shoe by direct thermal-molding.
U. S. Patent Nc'. 4,960,374 relates to an apparatus for molding outer and inner soles and a sole welt onto shoe uppers. molded outer sole is formed by injection molding plasticized thermoplastic material into a first mold cavity. molded sole welt is formed on a last supported shoe upper by injection molding plasticized thermoplastic material into a sole welt mold cavity.
Arnolded inner sole is formed by injection molding foamed plasticized thermoplastic material into an inner sole mold cavity. However, the injection molding technique involves a complicated mold venting system, and is susceptible toproblems relating to the molding pressure applied to the mold, and the molding temperature.
Therefore, the object of the present invention is to provide a method for making a shoe integrally, in which a sole blank of the shoe is disposed in a mold together with an upper of the shoe so as to be assembled integrally into a shoe by thermal molding.
According to this invention, the method for making a shoe includes the steps of: a) placing a foamed sole blankandanupperinamold, theupperbeing superimposed on the sole blank and having a last inserted therein; b) heating the mold to a temperature ranging from 110 to 150t so that the sole blank is softened and bonded to the upper, and so that the sole blank is formed into a shape of a sole of the shoe; and C) cooling the mold.
The sole blank is larger than the sole by a volume of 12-45%.
Other features and advantages of the present invention will become apparent in the following detailed descript ion of the preferred embodiment with reference ) to the accompanying drawings, of which: Figure 1 is a flow chart of the preferred embodiment of a method for making a shoe according to this invention; Figure2 isanexplodedperspectivevjewjllustratjng how a shoe is made according to the preferred embodiment, in which an outsole is a singular outsole component; Figure 3 is a sectional view showing a molding stage of the preferred embodiment; and Figure 4 isanexplodedperspectiveviewillustratjng how a shoe i-s made according to the preferred embodiment, ) in which an out sole is composed of two separate out sole components.
Before the present invention is described in greater detail, itshouldbenotedthat uikeelernentsaredenoted by the same reference numerals throughout the
disclosure.
Referring to Figures 1, 2 and 3, the preferred embodiment of the method for making a shoe according to this invention comprises the steps 0 : A) placing a preformed outsole, a foamed sole blank, arid an upper in a mold: A preformed outsole 10. a foamed sole blank 20, and an upper 30 are placed in a mold 50 in a manner that the upper 30 has a last 40 inserted therein arid that the sole blank 20 is disposed between the upper 0 and the outsole 10. The last 40 is formed with a circulating passage 41 in the bottom portion thereof.
The preformed outsole 10 can be a singular outsole component, or can be composed o two separate outsole components (best shown in Figure 4) . Of course, the number of the outsole components can vary according to the specific requirement for the preformed outsole 10.
The material for the preformed outsole 10 is rubber, thermoplastic urethane elastomer, or the like..
The foamed sole blank 20 is made of ethylene vinyl acetate copolymer, and includes a top surface 21, a bobtom surface 22, and an upstanding peripheral edge 23 extending from a periphery of the top surface 21. so as to define a receiving space 24. The upstanding peripheral edge 23 extends around a lower part of the upper 30 when the sole blank 20 is placed in the mold 50. The sole blank 20 is larger than a sole of the shoe to be made by a volume of 12-45%. The upper 30 has a top opening 31, a bottom 3 which is to be disposec over the sole blank 20, and an outer surface 32 extending between the top opening 31 and the bottom 33. The outer surface 32 of the upper 30 has a peripheral bottom edge 320 extending upwardly from the bottom 33 of the upper 30.
The bottom 33 and the peripheral bottom edge 320 of the upper 30 and the outsole 10 are applied with adhesive (not shown in the figures) . The top and bottom surfaces 21,22 of the sole blank 20 are applied with a treating agent (not shown in the figures) . The adhesive and the treating agent useful in this invention are well known in the art.
Inpractice, therein, the sole blank 20, and the outsole 10 re altogether placed in the mold 50 at an ambient temperature. Alternatively, the sole blank 20 is preheated to a temperature ranging from 50 to 120 t.
and is glued to the bottom 33 of the upper 30 sleeved on the last 40 before being placed in the mold 50. In another alternative, the last 40 is inserted into the upper 30, and the sole blank 20 is glued to the upper sleeved on the last 40 and is preheated before the step of placing the outsole 10, the sole blank 20 and the upper 30 into the mold 50. In this preferred embodiment, the preformed.outsole 10, the foamed sole blank 20, and the upper 30 are placed in the mold 50 by pressing the upper 30 sleeved on the last SO against the sole blank 20 and the outsole 10 in the mold 50 under S 5 a pressing force (F) ranging from 15 to 75 kg/cm2.
B) heating the mold: The mold 50 includes a main mold part 51, two opposite side mold parts 52 cooperating with the main rnoldpart5ltodefineamoldcavity53, aniaincirculating passage 54 provided in the main mold part 51, and side circulating passages 55 provided in the side mold parts 52, respectively. The mold 50 is heated to a temperature ranging from 110 to 150 cc by passing a heating medium, such as hot water, rrom a heating device (not shown) through the main and side circulating passages 54,55.
The last 40 is also heated by passing the heating medium through the circulating passage 41 when the mold SO is heated. The time for heating the mold 50 is about 1-7 minutes when the mold 50 is heated to a temperature ranging from 110 to 150 t. Alternatively, when the sole blank 20 is preheated to a temperature ranging from 50 tol2Ot, thetimeforheatingthemoldsocanbeshortened.
Thereafter, the sole blank 20 is softened and bonded to the outsole 10 and the upper 30, and the sole blank is formed into a shape of a sole of the shoe. It should be noted that the mold SQ can be heated by infra-red rays, electromagnetic waves, or other suitable heating means.
The pressing of the last 40 against the mold 50 when the mold 50 is heated facilitates the bonding of the sole blank 20 to the outsole 10 and the upper 30.
Therefore, the peripheral edge 23 of the sole blank 20 can be bonded firmly to the peripheral bottom edge 320 of the upper 30.
c) cooling the mold: The mold 50 is cooled by passing a cooling medium, suehascoldwater, throughtheTnain and side circulating passages 54,55. At the same time, the last 40 can be cooled by passing the cooling medium through the circulating passage 41.
D) trimming: The mold 50 is opened after the cooling step. The shoe thus produced is trimmed to obtain a final shoe product The circulating passage 41 of the last 40, arid the main and side circulating passages 54,55 of the mold 50 are preheated once again by supplying the heating medium from the heating device in preparation for subsequent processing.
The outsole 10 can be made of a thermoplastic material, such as ethylene-vinyl acetate copolymer, D trans-l,5-polypentenarner rubber, or the like, for providing for anti-slip and anti-abrasive effects.
Furthermore, a high resilient reinforcing sheet can be mounted under the sole blank 20 before the molding procedure so as to further improve the resiliency of the shoe.
Inviewof the aforesaid, themethodofthjsinventioi-i has the following advantages: 1) Since the sole blank 20 is assembled with the outsole 10 and the upper 30 by direct thermal-molding in the method for making a shoe according to this invention, theproblems encountered in the conventional injection molding technique or making a shoe can be avoided.
2) In the present method for making a shoe, the sole blank 20 is larger than a sole of the shoe to be made by a volume of 12-45%. Therefore, the sole will not be undersized due to shrinkage, and a desired density of the sole can be achieved.
3) The pressing of the last 40 against the mold 50 when the mold SO is heated facilitates the bonding of the sole blank 20 to the outsole 10 and the upper 30.
Therefore, the peripheral edge 23 of the sole blank 20 can be bonded firmly to the peripheral bottom edge 320 ot the upper 30. The waterproof effect of the shoe can be improved thereby.
4) Additional components, suchasareinforcing sheet, a reinforcing strip or the like, can be added in the method for making a shoe according to this invention.
Therefore, the method of this invention is flexible to meet the specific requirements.

Claims (12)

  1. S
    I CLAIM: 1. A method for making a shoe, comprising the steps of: a) placing a foamed sole blank and an upper in a mold, the upper being superimposed on the sole blank and having a last inserted therein; b) heating the mold to a temperature ranging from llOto15oC so that the soleblank is softenedand.bonded.
    to the upper, and so that the sole blank is formed into a shape of a sole of the shoe; and C) cooling the mold, wherein the sole blank is larger than the sole by a volume of 12-45%.
  2. 2. The method as claimed in Claim 1, further comprising a step of pressing the upper against the sole blank in the mold under a pressure ranging from 15 to 75 kg/cm.
  3. 3. The method as claimed in Claim, wherein the sole blank includes an upstanding peripheral edge extending around a lower part of the upper when placed in the mold.
  4. 4. The method as claimed in Claim 1, wherein the last is heated when the mold is heated.
  5. 5. The method as claimed in Claim 1, wherein the last is cooled when the mold is cooled.
  6. 6. The method as claimed in Claim 1, further comprising a step of preheating the sole blank to a temperature rangingfromso to 120 t beforebeingplacedinthemold.
  7. 7. The method as claimed in Claim 1, further comprising the step of placing a preformed outsole in the mold below the sole blank during placement of the upper and the sole blank in the mold.
  8. 8. The method as claimed in Claim 7, wherein the sole blank is glued to the upper before the outsole, the sole blank and the upper are put into the mold.
  9. 9. The method as claimed in Claim 1, wherein the mold includes a main mold part, two opposite side mold parts cooperating with the main mold part to define a mold cavity, a main circulating passage provided in the main mold part, and side circulating passages provided in the side mold parts, respectively, and wherein the mold is heated by passing a heating medium through the main and side circulatinS passages.
  10. 10. The method as claimed in Claim 7, wherein said preformed outsole is made of a thermoplastic material.
  11. 11. The method as claimed in Claim 10, wherein the thermoplastic material is selected from the group consisting ot ethylene-vinyl acetate copolymer and trans-1,5-polypentenamer rubber.
  12. 12. The method for making a shoe substantially as herejnbefore described with reference to and as illustrated in Figures 1 to 4 of the accompanying drawings.
GB0621886A 2006-11-02 2006-11-02 Method for making a shoe Expired - Fee Related GB2443383B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0621886A GB2443383B (en) 2006-11-02 2006-11-02 Method for making a shoe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0621886A GB2443383B (en) 2006-11-02 2006-11-02 Method for making a shoe

Publications (3)

Publication Number Publication Date
GB0621886D0 GB0621886D0 (en) 2006-12-13
GB2443383A true GB2443383A (en) 2008-05-07
GB2443383B GB2443383B (en) 2009-03-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2005200A (en) * 2009-08-14 2011-02-15 Ming-Te Chen Method for making shoes.
EP2543501A1 (en) * 2010-03-02 2013-01-09 Desarrollo Integral Del Molde, S.L. Method and mould for producing footwear and footwear thus obtained

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1173260A (en) * 1967-11-22 1969-12-03 Desma Werke Gmbh Improvements in Methods of and Moulds for Injection-Moulding Soles on to Footwear Uppers
EP0802041A2 (en) * 1996-04-19 1997-10-22 Finproject - S.P.A. Injection moulding process for soles in expansible and crosslinking "EVA" based compounds
EP1136244A1 (en) * 2000-03-22 2001-09-26 Cheng-Hsian Chi Method for manufacturing shoes with foamed soles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1173260A (en) * 1967-11-22 1969-12-03 Desma Werke Gmbh Improvements in Methods of and Moulds for Injection-Moulding Soles on to Footwear Uppers
EP0802041A2 (en) * 1996-04-19 1997-10-22 Finproject - S.P.A. Injection moulding process for soles in expansible and crosslinking "EVA" based compounds
EP1136244A1 (en) * 2000-03-22 2001-09-26 Cheng-Hsian Chi Method for manufacturing shoes with foamed soles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2005200A (en) * 2009-08-14 2011-02-15 Ming-Te Chen Method for making shoes.
LU91718B1 (en) * 2009-08-14 2012-01-23 Ming-Te Chen Method of making shoes
BE1019444A3 (en) * 2009-08-14 2012-07-03 Chen Ming Te METHOD FOR MANUFACTURING SHOES
EP2543501A1 (en) * 2010-03-02 2013-01-09 Desarrollo Integral Del Molde, S.L. Method and mould for producing footwear and footwear thus obtained
EP2543501A4 (en) * 2010-03-02 2016-05-11 Desarrollo Integral Del Molde Sl Method and mould for producing footwear and footwear thus obtained

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GB2443383B (en) 2009-03-18

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