EP1765106B1 - Procedes de fabrication d'articles chaussants - Google Patents

Procedes de fabrication d'articles chaussants Download PDF

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Publication number
EP1765106B1
EP1765106B1 EP05758399A EP05758399A EP1765106B1 EP 1765106 B1 EP1765106 B1 EP 1765106B1 EP 05758399 A EP05758399 A EP 05758399A EP 05758399 A EP05758399 A EP 05758399A EP 1765106 B1 EP1765106 B1 EP 1765106B1
Authority
EP
European Patent Office
Prior art keywords
upper member
midsole
cement
interior chamber
heel
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.)
Active
Application number
EP05758399A
Other languages
German (de)
English (en)
Other versions
EP1765106A2 (fr
Inventor
Kurt Joseph Stockbridge
Peter Savage
Sean Michael Mcdowell
Sung Yuan Lee
Shih-Chang Huang
Tien Yuan Huang
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.)
Nike International Ltd
Original Assignee
Nike International 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 Nike International Ltd filed Critical Nike International Ltd
Priority to EP14169115.4A priority Critical patent/EP2769635B1/fr
Priority to EP11185678.7A priority patent/EP2409590B1/fr
Publication of EP1765106A2 publication Critical patent/EP1765106A2/fr
Application granted granted Critical
Publication of EP1765106B1 publication Critical patent/EP1765106B1/fr
Active 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
    • A43B9/00—Footwear characterised by the assembling of the individual parts
    • A43B9/08—Turned footwear
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/42—Filling materials located between the insole and outer sole; Stiffening 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
    • A43B17/18—Arrangements for attaching removable insoles to footwear
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B9/00—Footwear characterised by the assembling of the individual parts
    • A43B9/02—Footwear stitched or nailed through
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B9/00—Footwear characterised by the assembling of the individual parts
    • A43B9/12—Stuck or cemented footwear
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D11/00—Machines for preliminary treatment or assembling of upper-parts, counters, or insoles on their lasts preparatory to the pulling-over or lasting operations; Applying or removing protective coverings
    • A43D11/006—Devices for temporarily fixing or aligning insoles on lasts
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D3/00—Lasts
    • A43D3/02—Lasts for making or repairing shoes
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D3/00—Lasts
    • A43D3/02—Lasts for making or repairing shoes
    • A43D3/027—Lasts with exchangeable parts, e.g. for changing the form or for remodelling

Definitions

  • aspects of the present invention generally relate to footwear products, intermediate structures used in making footwear products, and methods of making footwear products and the intermediate structures.
  • the structures will include a midsole member located within an interior chamber defined by the upper member of the footwear structure.
  • Conventional footwear products, and particularly athletic shoes include an upper member attached to a shoe sole structure.
  • the upper member will include an internal insole.
  • the shoe sole structure typically includes a midsole and an outsole connected to one another as a single assembly ( e.g ., using adhesives) that is constructed separate from the upper member. This shoe sole assembly then is attached to the upper member, e.g ., using adhesives, stitching, welding, etc.
  • Such products may include: (a) an upper member having a foot-receiving opening defined therein, wherein the upper member defines an interior chamber and an exterior surface; and (b) a midsole provided in the interior chamber of the upper member and fixed to the upper member, wherein the midsole is located or positioned completely within the interior chamber.
  • at least a portion of the exterior surface of the upper member may form at least a portion of an outsole of the structure, and/or the structure may include one or more outsole members and/or one or more heel members attached to at least a portion of the exterior surface of the upper member.
  • the outsole and/or heel member(s) may be mounted directly on the exterior surface of the upper member.
  • the resulting footwear product will be lightweight and particularly suitable for athletic use.
  • the invention relates to methods for making various structures, including footwear midsole and upper member assemblies, as well as complete pieces of footwear, e.g., like those described above.
  • Such methods includes, applying a first cement material (200) to at least a portion of an upper member (100) that will be included in an interior chamber (402) of the upper member; applying a second cement material (1102) to at least a portion of a midsole (1100) that will contact the upper member when the midsole is included in the upper member; cooling at least one of the upper member or the midsole to a sufficient extent so that the midsole and upper member will move with respect to one another despite the presence of the first and second cement materials; and placing the midsole in the interior chamber of the upper member in a manner such that at least some of the cement-containing portion of the midsole contacts and moves with respect to at least some of the upper member and at least some of the cement-containing portion of the upper member contacts and moves with respect to at least some of the midsole.
  • At least one of the midsole and/or the upper member (preferably at least the part or parts containing the cement material) is cooled prior to insertion of the midsole into the upper member.
  • the cement-containing portion of the midsole will be able to contact and still move with respect to the upper member and/or the cement-containing portion of the upper member despite the presence of the cement material.
  • the combined midsole and upper member assembly may be heated to activate the cement and thereby bond the assembly together.
  • Figure 1 illustrates an example structure and orientation of an upper member at the start of an example process in accordance with aspects of this invention
  • FIG. 2 illustrates application of an adhesive material to the upper member in an example process in accordance with aspects of this invention
  • FIG. 3 illustrates an example upper member heating step in an example process in accordance with aspects of this invention
  • Figure 4 illustrates an example structure and orientation of an upper member when turned outside-out during an example process in accordance with aspects of this invention
  • Figure 5 illustrates an example step of flattening or smoothing an internal seam or flange of an upper member during an example process in accordance with aspects of this invention
  • Figure 6 illustrates an example step of activating a heel counter of an upper member during an example process in accordance with aspects of this invention
  • Figure 7 illustrates an example step of molding the heel area of an upper member during an example process in accordance with aspects of this invention
  • Figure 8 illustrates an example step of attaching a strobel flap to the remainder of an upper member structure during an example process in accordance with aspects of this invention
  • Figure 9 illustrates an example step of activating a toe box of an upper member during an example process in accordance with aspects of this invention
  • Figure 10 illustrates an example "prelasting" step during an example process in accordance with aspects of this invention
  • Figure 11 illustrates an example step of cooling a midsole member and an upper member during an example process in accordance with aspects of this invention
  • Figure 12 illustrates an example "de-lasting" step during an example process in accordance with aspects of this invention
  • Figure 13 illustrates an example step of inserting a midsole into an upper member during an example process in accordance with aspects of this invention
  • Figure 14 illustrates an example step of inserting a last device into a midsole and upper member assembly during an example process in accordance with aspects of this invention
  • Figure 15 illustrates an example step of fastening attachment elements to a lasted midsole and upper member assembly during an example process in accordance with aspects of this invention
  • Figure 16 illustrates an example midsole and upper member assembly heating step in an example process in accordance with aspects of this invention
  • Figure 17 illustrates an example pressing step during an example process in accordance with aspects of this invention
  • Figure 18 illustrates an example outsole member attachment step during an example process in accordance with aspects of this invention.
  • Figure 19 illustrates an example heel unit attachment step during an example process in accordance with this invention.
  • “Footwear” means any type of wearing apparel for the feet, and this term includes, but is not limited to: all types of shoes, boots, sneakers, sandals, thongs, flip-flops, mules, scuffs, slippers, athletic shoes, sport-specific shoes (such as golf shoes, ski boots, etc.), and the like.
  • cement material or “cement” refers to any type of bonding material including conventional materials known in the art. Included within the scope of “cement materials,” but not limiting the term, are adhesives, contact cements, primers, and the like.
  • cement cement material
  • cement material cement material
  • Adhesive and “adhesive material” are used synonymously and interchangeably in this specification and are to be broadly construed as covering any type of bonding material.
  • aspects of this invention relate to methods used in making footwear products, including completed footwear products. More specific example aspects of the invention relate to products that include: (a) an upper member having a foot-receiving opening defined therein, wherein the upper member defines an interior chamber and an exterior surface; (b) a midsole provided in the interior chamber of the upper member and fixed to the upper member, wherein the midsole is completely within the interior chamber; and (c) an outsole member attached to at least a portion of the exterior surface of the upper member.
  • products in accordance with at least some aspects of the present invention may include: (a) an upper member having a foot-receiving opening defined therein, wherein the upper member defines an interior chamber and an exterior surface, and wherein at least a portion of the exterior surface of the upper member forms at least a portion of an outsole of the structure; and (b) a midsole provided in the interior chamber of the upper member and fixed to the upper member, wherein the midsole is located completely within the interior chamber.
  • Example structures of this type further may include one or more outsole members and/or one or more heel units attached to the exterior surface of the upper member.
  • structures in accordance with at least some aspects of the present invention further may include midsoles having alignment systems for aligning and/or otherwise properly orienting the midsole with respect to other elements in the structure.
  • midsoles used in structures in accordance with at least some examples of the invention may include at least one projection (and in some examples plural projections) that fit into corresponding recesses or openings defined in another portion of the structure, such as the upper member, the outsole, the insole, and the like.
  • the midsole may include one or more openings or recesses and another portion of the structure may include projections designed to fit into the openings or recesses.
  • Additional aspects of this invention relate to methods for making various structures, including footwear midsole and upper member assemblies, as well as complete pieces of footwear, as defined in the appended claims.
  • Methods in accordance with examples of the invention may include additional steps. For example, after cooling and placing the midsole in the interior chamber of the upper member, the combined midsole and upper member assembly may be heated to thereby activate the cement material(s) and bond the midsole and upper member together. Additionally, if desired, one or more additional elements may be attached to or included with the midsole and upper member assemblies, such as: outsole members, heel units, closure systems, designs, logos, and the like.
  • the midsole and/or upper member (preferably at least the part or parts containing the cement material) may be cooled prior to insertion of the midsole into the upper member.
  • the cement material will "deactivate" somewhat such that the cement-containing portion of the midsole will be able to contact and still move with respect to the upper member and/or such that the cement-containing portion of the upper member will be able to contact and still move with respect to the midsole despite the presence of the cement.
  • the midsole and upper member assembly may be heated to activate the cement and fix the assembly together.
  • the midsole may be placed in the interior chamber of the upper member through a foot-receiving opening defined in the upper member (i.e ., the same opening through which a user will insert his/her foot in the finished footwear product).
  • the foot-receiving opening may be the only opening provided in the upper member that is capable of receiving the midsole at the time the midsole is placed in the interior chamber ( i.e ., it may be the only opening in the upper member large enough to allow entry of the midsole into the interior chamber).
  • a heel portion of the upper member may be closed prior to placing the midsole in the interior chamber of the upper member ( e.g ., by sewing, adhesives, another fastening means, or in some other manner).
  • methods in accordance with at least some examples of the invention may include fitting the midsole into the upper member in a predetermined orientation.
  • This may include, for example, use of an alignment aid to assure that the midsole is properly aligned and oriented with respect to one or more other elements in the structure.
  • the alignment aid may include one or more projections provided on the midsole that fit into corresponding projection-receiving recesses and/or openings defined in the upper member, in the outsole, in the insole, and/or in some other element of the structure.
  • the midsole may include the recess(es) or opening(s) and the corresponding projection(s) may be provided on another part of the structure, such as the upper member, the outsole, the insole, etc.
  • at least part of the alignment aid and/or an indicator of the correct alignment may be visible from the exterior of the assembly.
  • Other suitable alignment aids or fitting aids are possible and may be used without departing from the invention.
  • a last member may be inserted through the foot-receiving opening into the interior chamber of the upper member, and then this entire assembly may be heated to help form and set the assembly to the desired size and shape. Before, during, and/or after this heating, the assembly may be pressed together, under high pressure, to further bond the structure together.
  • aspects of this invention also relate to the midsole and upper member assemblies produced by the various methods described above, as well as to pieces of footwear including these assemblies and/or produced by the methods described above.
  • the upper member 100 includes a sidewall 102, optionally of a continuous, one-piece construction, that is attached to a base member 104.
  • the upper member sidewall 102 may be attached to the upper's base member 104 in any suitable or desired manner without departing from the invention.
  • these elements may be joined to one another by sewing, by adhesives, by other connectors, and the like.
  • the upper's sidewall 102 and the base member 104 may be formed from a single piece of material, without departing from the invention.
  • any suitable or desired material may be used for the upper member sidewall 102 and/or base member 104 without departing from the invention, including conventional materials used and well known in the art, such as conventional natural or synthetic materials and/or combinations thereof.
  • the portions of the sidewalls 102 and/or the base member 104 that will eventually contact the foot of the wearer may include fabric, foam, and/or cushioning materials, to increase the comfort and/or improve the feel of the upper member 100 on the wearer's foot.
  • the fabric, foam, and/or cushioning materials may be any suitable or desired materials without departing from the invention, including conventional materials known in the art.
  • the base member 104 may include a conventional insole as at least part of its construction. Additionally, the fabric, foam, and/or cushioning materials may be attached to and/or included as part of the structural components of the upper member 100 in any suitable or desired manner without departing from the invention, including in conventional manners known in the art.
  • Fig. 1 illustrates an unattached flap 106 of strobel material in the base member 104 at the heel area 108 of the upper member 100.
  • This unattached flap 106 allows access to the portions of the upper member 100 inside the sidewalls, for reasons described in more detail below.
  • a conventional foot-receiving opening 110 also is provided in the upper member 100, as shown in Fig. 1 .
  • the base member 104, including the flap portion 106 further may include one or more openings 114 defined therein. The purpose of these openings will be described in more detail below.
  • one or more upper members 100 are placed inside-out at the beginning of an assembly line for an assembly process in accordance with one example of the invention.
  • the exterior surface illustrated in Fig. 1 actually constitutes the interior surface of the final footwear product (and it may be comprised of fabric, foam, and/or other cushioning material, as described above), while the interior surface constitutes the exterior of the final footwear product.
  • Step 2 Cementing the Upper Sidewall and Insole
  • a cement material 200 is applied to at least a portion of what will become the interior surface of the upper member 100 (notably, in Fig. 2 , the interior surface of the upper member 100 is on the outside because the upper member 100 is inside-out).
  • the cement material 200 is applied to a lower portion of the sidewall 102 and/or at an insole area (e.g., along base member 104) of the inside-out upper member 100.
  • the area to which the cement material 200 is applied in this example is shown in hatching in Fig. 2 .
  • the cement material 200 will enable the footwear's midsole, which will be inserted into the upper member 100 later in the process, to stay in place within the final footwear assembly. If this cement material 200 were not applied, the midsole may be able to slide around inside the upper member 100, causing an unstable or insecure fit, potentially damaging the footwear assembly, causing injury to the wearer, and/or providing an uncomfortable fit. Any suitable or desired type of cement material 200 may be used without departing from the invention, including conventional cement materials known to those in the art and commercially available.
  • Step 3 Heating the Cement - Containing Upper Assembly
  • the upper member 100 may be heated to dry the cement material 200, if necessary.
  • the upper member 100 (with the applied cement material 200) is dried, e.g ., in a heating tunnel, oven, or other appropriate heating device (generally designated as a heating unit 300).
  • a heating tunnel, oven, or other appropriate heating device generally designated as a heating unit 300.
  • any suitable or desired heating conditions may be used without departing from the invention, for example, based on the type of cement, the type of upper material, the amount of cement applied, the humidity, the type of midsole material, the type of cement used on the midsole, other ambient conditions, etc.
  • the upper member 100 is dried at about 50°C to 55°C for about two to three minutes.
  • no heating may be required and the cement material 200 may be allowed to dry, if necessary, under ambient conditions.
  • the same or a different type of cement material also may be applied to a separate midsole member and/or dried in the same manner described above with respect to the upper member 100.
  • the midsole member may be cemented and/or dried in parallel along with the upper member 100, optionally drying the midsole member at the same time and under the same conditions as the upper member 100, without departing from the invention.
  • the midsole member will be described in more detail below.
  • Step 4 Turning the Upper Member Outside-Out
  • the upper member 100 orientation is reversed so that the outside of the upper member 100 is located on the exterior of the overall assembly (i.e. , "outside-out").
  • the upper member 100 includes exterior sidewalls 102 made of any suitable or desired materials, as described above. Additionally, because the cement material 200 is now located inside the upper member 100, the cement material 200 is shown in broken lines in Fig. 4 .
  • the base member 104 may include traction elements 400 such that at least some portion of the base member 104 may function as an outsole in the finished piece of footwear.
  • Any suitable or desired traction elements 400 or tread design may be included as part of the base member 104, if desired, without departing from the invention.
  • one or more separate outsole elements may be used rather than using at least a portion of the upper member 100 has an outsole.
  • traction elements 400 may be applied to the base member 104 exterior surface at any desired time ( e.g ., using adhesives), including after the upper member 100 is turned outside-out.
  • the flap member 106 remains unattached and allows access into the interior chamber 402 of the upper member 100 through the heel area 108 of the upper member 100. Additionally, the foot-receiving opening 110 also allows access to the interior chamber 402.
  • the walls within the interior chamber 402 may include fabric, foam, and/or other cushioning or comfort elements, as described above.
  • the example footwear upper member 100 structure illustrated in Fig. 4 includes two independent closure systems.
  • the upper member 100 includes eyelets 404 for receiving a shoe lace in a conventional manner known in the art.
  • this example upper member 100 includes a closure system comprised of a closure flap or strap 406 that engages a closure element 408 mounted on and/or integrally formed as part of the upper member 100.
  • the closure flap 406 and closure element 408 may attach to and/or otherwise engage one another in any suitable or desired manner without departing from the invention, for example, using one or more snaps, hooks, buckles, hook-and-loop type fasteners, hook-and-eyelet type fasteners, adhesives, etc.
  • any suitable or desired footwear closure system and/or combination of systems may be used without departing from the invention, including conventional closure systems known in the art.
  • Step 5 Flattening any Internal Seams or Flanges
  • the interior chamber 402 of the upper member 100 may include one or more sewn seams, weld seams, or other flanges, e.g. , locations where various pieces of the upper member are joined together to form the overall upper structure, for example, along the edges 112 where the sidewalls 102 are secured to the base member 104, etc. (see Fig. 1 ).
  • These seams or flanges can become even more pronounced when the upper member 100 is turned outside-out as described above in conjunction with Fig. 4 . Often, these seams or flanges, if left untreated, will interfere with insertion of the midsole when the time comes during the assembly process to insert the midsole into the upper member 100.
  • any seams or flanges within the interior chamber 402 of the upper member 100 may be flatten or smoothed to allow for smoother and easier insertion of the midsole into the interior chamber 402.
  • Any suitable or desired manner of flattening or smoothing the seams or flanges may be used without departing from the invention.
  • the seams or flanges may be flattened or smoothed by pressing them against a smooth post 500 mounted on a table 502.
  • the smoothing element 500 may be a heated metal post or other metal member, optionally capable of applying water or steam (akin to a conventional iron).
  • the smoothing element, such as post 500 may enter the interior chamber 402 through the opening in the heel area 108 provided by the flap member 106.
  • the smoothing element may be constructed and shaped to enter the interior chamber 402 through the foot-receiving opening 110. Any suitable or desired smoothing element, smoothing element shape, or smoothing element configuration may be used without departing from this invention.
  • Step 6 Activating the Heel Counter
  • the heel area 108 of the upper member 100 (also called a “heel counter”) is molded and shaped, under heating.
  • "Heel counter activation" and shaping processes of this type are conventional and known in the art.
  • a heel counter shaping mold 600 may be inserted into the interior chamber 402 of the upper member 100 through the opening defined by the flap member 106 in the heel area 108.
  • additional heel structural elements for the upper member 100 may be placed in the interior chamber 402 and/or included with the upper member sidewall 102 at some point in the upper member 100 construction process.
  • the heel counter shaping mold 600 may be used to apply heat to the heel counter area 108, if necessary, and/or to provide a final desired shape for this area 108. Also, if desired, the heel counter shaping mold 600 may be inserted into the interior chamber 402 through the foot-receiving opening 110, without departing from the invention.
  • any suitable or desired counter heating and/or activation conditions may be used without departing from the invention, depending, for example, on the materials used in making the various components of the upper member 100, ambient temperature and humidity conditions, amount of shape changes needed in the heel area 108, additional structural elements included in the heel area 108, and the like.
  • the heel counter is activated at a temperature in the range from about 85°C to 95°C for about one minute.
  • pressure also may be applied to the heel counter area 108 to further shape the heel counter area 108 to match the heel counter shaping mold 600.
  • Step 7 Molding the Backpart of the Upper Member
  • the upper member 100 and particularly the heel counter area 108 of the upper member 100, are placed in a chilled or cooled mold 700 and pressed to further form and shape the exterior and/or interior of the heel area 108 of the upper member 100, as shown in Fig 7 .
  • the heel counter shaping mold 600 may remain in the interior chamber 402, or alternatively, another mold member may be placed therein, to help shape and set the interior portions of the heel area 108.
  • any suitable or desired temperature, pressure, and/or timing conditions can be used for molding the heel area 108 of the upper member 100 without departing from the invention.
  • the mold surface temperature may be less than or equal to about 50°C in some examples.
  • the heel area 108 of the upper member 100 may be pressed between mold parts 600 and 700, wherein the surface temperature of at least some of these mold parts 600 and/or 700 is cooled to within the range of about -5°C to 5°C, for about 25 to 35 seconds under a pressure of about 4 to 5 kg/cm 2 .
  • Use of these chilled or cooled mold parts 600 and/or 700 allows the materials in the heel area 108 to thermoset, thereby providing the final desired heel shape for the upper member 100.
  • Step 8 Attaching the Strobel at the Heel Area
  • the heel area 108 of the upper member 100 includes the unattached flap of material 106.
  • This flap 106 of material also called a "strobel" was left unattached, as described above, to enable insertion of certain equipment and to allow operation of various pieces of machinery used in the production process.
  • the smoothing element 500 passed through the opening at the heel area 108 to enable seam and/or flange flattening.
  • the flap 106 of material at the heel area 108 enables insertion of mold member 600 and proper molding of the heel area 108 during the counter activation and backpart molding steps described above in conjunction with Figs.
  • the loose flap of material 106 is attached to the remainder of the upper member 100 ( e.g ., attached to the sidewall 102) to make the upper member 100 of an integral construction.
  • the flap 106 in this example forms a continuous single piece with the remainder of the base member 104.
  • any suitable manner of attaching the flap 106 to the remainder of the upper member 100 structure may be used without departing from the invention. While sewing or stitching is used as the attachment means 800 in the example illustrated in Fig. 8 , those skilled in the art recognize that other attachment means, such as adhesives, welding, mechanical fasteners, additional intermediate materials, and the like may be used to attach the flap 106 to the upper member 100 sidewalls 102 without departing from the invention.
  • no flap need be provided such that the entire heel area 108 remains open to the interior chamber 402, and this open area may be closed during this step of the process by attaching an independent element to the sidewalls 102 and base member 104.
  • Step 9 Activating the Toe Box
  • toe box activation occurs. This process is similar to the heel counter activation process described above in conjunction with Fig. 6 .
  • one or more structural elements for the toe box area 902 may have been incorporated into the upper member 100 structure.
  • a toe box mold 900 (having a final desired shape for the toe area 902 of the upper member 100) then may be inserted into the upper member 100 through the foot-receiving opening 110, which allows access to the interior chamber 402 of the upper member 100.
  • the toe box mold 900 may be mounted to a surface 904, such as a table top as illustrated in Fig. 9 .
  • this toe box activation step may take place before the heel area 108 is closed as described in conjunction with Fig. 8 , and the toe box mold 900 may be inserted into the interior chamber 402 through the opening defined at the unattached flap 106 of the heel area 108.
  • any suitable or desired activation conditions may be used without departing from the invention, depending, for example, on the materials used in making the various components of the upper member 100, the presence of any additional structural elements, ambient temperature and humidity conditions, degree of shape changes needed in the toe area 902 of the upper member 100, and the like.
  • the toe box area 902 may be activated at a temperature in the range from about 75°C to 85°C for about 8 to 15 seconds.
  • the toe box activation conditions may be the same as or similar to those used in activating the heel counter area 108, and vice versa.
  • pressure may be applied to the toe box area 902 to further shape the toe box area 902 to match the mold member 900.
  • Step 10 Prelasting
  • a "prelasting" step occurs.
  • a last device 1000 is fitted with a midsole allowance part 1002 that mimics the desired size and shape of a midsole to be inserted within the upper member 100 during this initial "prelast" step.
  • the midsole allowance part 1002 is a hard piece of material (e.g ., made from shaping mold material) that may be fixed to a last member 1000, as illustrated in Fig. 10 , e.g ., through screws, clips, binders, or other mechanical connection; through adhesives; and/or in any other suitable or desired manner.
  • the last member 1000 and midsole allowance part 1002 may be formed as a one piece member without departing from the invention.
  • the combined last member 1000 and midsole allowance part 1002 is called a "prelast member" in this specification and designated as reference number 1004 in Fig. 10 .
  • the prelast member 1004 including the midsole allowance part 1002, is inserted into the upper member 100 through the foot-receiving opening 110, as indicated by arrow 1006 in Fig. 10 .
  • the size of the prelast member 1004 during this prelasting step helps to shape the upper member 100 to its final desired size and shape, and it stretches and/or otherwise increases the size of the interior chamber 402 of the upper member 100 to allow for easier insertion of the midsole member.
  • a midsole member 1100 may be treated in a similar manner, e.g ., it may have a cement material 1102 applied thereto ( e.g. , along its side edges and/or bottom), and the cement material 1102 may be dried in steps the same as and/or similar to those described above in conjunction with treatment of the upper member 100.
  • the midsole member 1100 also is prepared for insertion into an upper member 100.
  • the midsole member 1100 may include nubs or projections 1106 on its bottom surface that fit into recesses or openings 114 provided in the base member 104 of the upper member 100. This feature will be described in more detail below.
  • both the upper member 100 (optionally, still on the prelast member 1004 having the midsole allowance part 1002) and the midsole member 1100 are cooled (represented by the cooling zone 1104 illustrated in Fig. 11 ).
  • the cooling of the upper member 100 around the prelast member 1004 allows the materials of the upper member 100 to thermoset based on the dimensions of the prelast member 1004 (including the midsole allowance part 1002), thereby providing the final desired shape for various portions of the upper member 100.
  • the cooling of upper member 100 and the midsole member 1100 allows their respective contact cement materials 200 and 1102, respectively, to deactivate such that these parts will not immediately bind when they touch one another (as parts having contact cement thereon tend to do).
  • the upper member 100 and the midsole member 1100 will slide with respect to one another when the midsole member 1100 is finally inserted into the upper member 100. If this cooling process were not performed, in at least some instances, the contact cement 200 on the upper member 100 would tend to stick to the midsole member 1100 as soon as the midsole member 1100 contacted the cement on the upper member 100, and vice versa, thereby resulting in improper insertion of the midsole 1100 into the upper member 100.
  • the cooling process allows some movement of the midsole member 1100 with respect to the upper member 100 before the contact cement on these parts permanently holds them in place with respect to one another.
  • any suitable or desired temperature and/or timing conditions can be used to cool the midsole member 1100 and/or the upper member 100 without departing from the invention.
  • the prelast device 1004 surface temperature, the upper member 100 surface temperature, and/or the midsole 1100 surface may be cooled to less than or equal to about 35°C in some examples.
  • the upper member 100 and the midsole member 1100 may be cooled to a temperature within the range of about -5°C to 5°C for about 2 to 21 ⁇ 2 minutes.
  • midsole 1100 and upper member 100 may be separately cooled, optionally in different cooling devices, without departing from the invention.
  • a variety of midsole members 1100 and/or upper members 100 of varying sizes and/or types may be stored in bulk, optionally with contact cement applied thereto and optionally under cooled conditions, ready for the remaining process steps ( e.g ., the steps described below) without departing from the invention.
  • Fig. 11 also illustrates the midsole member 1100 as a one-piece element. This is not a requirement of the invention. Rather, if desired, the midsole 1100 may be inserted into an upper member 100 in multiple pieces.
  • the terms "midsole” and “midsole member,” as used in this specification, are intended to cover midsole elements composed of one or any other number of pieces.
  • Step 12 De-Lasting the Upper Member
  • the upper member 100 is removed from the prelast member 1004, as shown by arrow 1200 in Fig. 12 .
  • the midsole allowance part 1102 remains as part of the prelast member 1004 and does not stay within the upper member 100.
  • the interior chamber 402 of the upper member 100 has been sized to accommodate insertion of a midsole.
  • Step 13 Inserting the Midsole Member
  • both the upper member 100 and the midsole member 1100 are in a cooled condition with contact cement 200 and 1102, respectively, applied thereto. Because they are in this cooled condition, as described above, the midsole member 1100 can be slid into the upper member 100 before the contact cement 200 and/or 1102 bonds these parts together.
  • the midsole member 1100 is slid into the interior chamber 402 of the upper member 100 through the foot-receiving opening 110 of upper member 100, as illustrated in Fig. 13 by arrow 1300.
  • the foot-receiving opening 110 is the only opening provided in the upper member 100 that is capable of receiving the midsole member 1100. All other previous openings to the interior chamber 402 have been closed ( e.g ., during the strobel closing step described above in connection with Fig. 8 ).
  • the midsole member 1100 is completely included within the interior chamber 402 defined by the upper member ( e.g ., defined by sidewall 102 and base member 104 of the upper member 100, in this example).
  • the insertion process is a relatively "blind" operation, i.e ., one cannot easily see whether the midsole member 1100 is properly seated and oriented inside the upper member 100 ( e.g ., particularly because of the presence of the contact cement 200 and 1102, the midsole member 1100 can become twisted, bunched, and/or otherwise mis-oriented or mis-seated in the upper member 100).
  • the midsole member 1100 may include "nubs" or projections 1106 that fit into openings or recesses 114 provided in the upper member 100, the insole ( e.g ., part of base member 104), and/or some other portion of the footwear structure.
  • the nubs 1106 and openings or recesses 114 may be used as alignment or positioning aids to assure that the midsole member 1100 is proper oriented and seated inside the upper member 100.
  • the nubs or projections 1106 may be visible through openings 114 defined in the upper member 100, to provide an externally visible indication and confirmation that the midsole member 1100 is properly inserted and oriented.
  • the upper member 100 may include other openings and/or windows therein such that the midsole 1100 may be visible through the upper member structure without departing from the invention.
  • the upper member may include projections or nubs and the midsole member may include openings or recesses for receiving the projections or nubs.
  • each of the midsole and upper members may include both projections and openings (or recesses) that match up with corresponding elements on the other member.
  • the projections and/or openings (or recesses) may be of any size or shape, provided at any desired location, and/or provided on any desired surface of the midsole and/or upper members without departing from the invention.
  • one or more of the traction elements 400 may be formed on the midsole member 1100 and extend through one or more openings provided in the base member 104. If necessary or desired, additional cement or other sealing material may be applied to the projections and/or opening walls to seal the openings 114 in the base member 104 once the projections are inserted therein.
  • Step 14 Inserting the Last Device
  • the combined midsole member 1100 and upper member 100 assembly now is slid onto a last device 1402 through the foot-receiving opening 110 defined in the upper member 100 (the midsole member 1100 is shown in broken lines in Fig. 14 because it is contained within the upper member 100 and not completely visible from outside it, although the projections 1106 may be visible through the openings 114).
  • This last device insertion step is illustrated in Fig. 14 by arrow 1404.
  • the last device 1402 in this step does not include (and does not need) a midsole allowance part as described above in conjunction with Fig. 10 , because the midsole and upper member assembly 1400 now includes the permanent midsole 1100 therein.
  • the last device 1402 may be the same as the prelast device 1000 used in the steps illustrated in Figs. 10-12 with a removable midsole allowance part 1002 removed therefrom, or alternatively, it may be a completely different last device without departing from the invention.
  • Step 15 Loosely Securing the Midsole and Upper Member Assembly to the Last Device
  • the midsole and upper member assembly 1400 may be secured thereto, optionally in a somewhat loose fashion, using the securing element(s) that will be present in the finished piece of footwear.
  • This securing step helps maintain the midsole and upper member assembly 1400 on the last device 1402 and helps to hold the assembly 1400 in place on the last device 1402.
  • a shoe lace 1500 is fastened through the eyelets 404 of the upper member 100 and optionally tied in a conventional manner.
  • closure flap 406 may be moved to engage the closure element 408 mounted on and/or integrally formed as part of the upper member 100.
  • closure flap 406 and closure element 408 may engage one another in any suitable or desired manner without departing from the invention, for example, using snaps, hooks, hook-and-loop type fasteners, hook-and-eyelet type fasteners, adhesives, buckles, etc.
  • Step 16 Passing Through a Heating Device
  • the combined midsole and upper member assembly 1400, attached to the last device 1402, now is heated, e.g ., by placing the assembly 1400 in a heating device 1600 as shown in Fig. 16 .
  • Any suitable or desired heating device 1600 can be used without departing from the invention, such as a heat tunnel, an oven, etc. Additionally, this heating device 1600 may be the same as or different from the heating device 300 described above in conjunction with Fig. 3 without departing from the invention. Because the assembly 1400 previously was cooled, this heating step helps allow the assembly 1400 to mold into its final desired form. For example, the heating reactivates the cement materials 200 and 1102 between the midsole member 1100 and the upper member 100 and firmly sets and bonds these components together.
  • the heating step can help expand the cooled midsole component 1100, producing a tighter, more secure fit within the upper member 100.
  • the heating process in at least some instances, also helps the upper member 100 and the midsole member 1100 take final shape on the last device 1402.
  • the midsole and upper member assembly 1400 may be heated at about 80°C to 90°C for about 3 to 4 minutes.
  • Step 17 Deep Well Pressing
  • the heated midsole and upper member assembly 1400 may be subjected to a deep well pressing step, e.g ., in a conventional manner known to those skilled in the art.
  • This pressing step generally is illustrated in Fig. 17 by arrows 1700.
  • One or more molds or forms (not shown) provided along and/or at least partially around the base member 104 and/or the upper member 100 ( e.g ., along the bottom of the press device) hold the midsole and upper member assembly 1400 in place, and the last device 1402 holds the upper member 100 and midsole 1100 at their desired locations and in their desired shapes.
  • High pressure, along with the contact cement 200 and 1102 are used to tightly press (and thereby fix) the midsole 1100 to the upper member 100.
  • this pressing step may be performed under any desired type of heating or cooling conditions.
  • any desired or suitable pressing conditions may be used without departing from the invention.
  • a pressure of at least 10 kg/cm 2 for at least five seconds, optionally under heating conditions may be used.
  • a pressing force of 30-35 kg/cm 2 is applied for 12-15 seconds under ambient temperature conditions (although the midsole and upper member assembly 1400 may remain in at least a somewhat heated condition from the previous heating step).
  • the last device 1402 may be removed from the midsole and upper member assembly 1400.
  • one or more outsole members 1800 may be applied to the base member 104 of the upper member 100 such that at least a portion of the base member 104 is sandwiched between the midsole 1100 and the outsole member 1800.
  • a portion of the upper member 100 e.g ., some of the base member 104 will function as a portion of the outsole for the finished piece of footwear.
  • Additional outsole members 1800 may be provided on at least some portion of the base member 104 to improve and/or otherwise change the wear and/or traction characteristics of the overall piece of footwear.
  • the outsole members 1800 may be provided in areas that typically receive heavy and/or uneven wear.
  • These outsole members 1800 may have treads or traction elements, e.g. , either the same as or different from the traction elements 400 provided on the base member 104, if any.
  • outsole members 1800 could substantially or entirely cover the base member 104 of the upper member 100 without departing from the invention.
  • outsole members 1800 also cover (and optionally seal) the openings 114 in the base member 104 that receive the projections 1106 of the midsole 1100, as described above (see, for example, Figs. 13 and 14 ).
  • the outsole member(s) 1800 may be applied to the midsole and upper member assembly 1400 in any desired manner without departing from the invention, including in conventional manners known in the art.
  • the outsole member(s) may be applied to all or a portion of the base member 104 and/or to other portions of the upper member 100 via primer, contact cement, other adhesives, stitching, via other mechanical connections, and/or in other conventional manners known to those skilled in the art.
  • At least one of the outsole member(s) 1800 further may include a heel member that functions as part of the outsole for the piece of footwear.
  • a heel member that functions as part of the outsole for the piece of footwear.
  • an entire outsole and heel member assembly may be attached to the midsole and upper member assembly 1400 ( e.g ., to the base member 104) as an integral unit.
  • a separate heel member 1900 may be attached at the heel area 108 of the upper member 100 on the base 104.
  • the heel member 1900 may include one or more open recesses and/or air bladders (generally represented at open space 1902 in the heel member 1900 structure), e.g. , to help reduce the weight of the overall footwear product.
  • the heel member 1900 may be attached to the base member 104 and/or to another portion of the upper member 100 in any suitable or desired manner without departing from this invention, such as via primer, contact cement, other adhesives, stitching, other mechanical connections, and/or in other conventional manners known to those skilled in the art.
  • the heel member 1900 covers (and optionally seals) an opening 114 that receives one of the midsole projections 1106, as described above.
  • the heel member 1900 may be of any suitable or desired design and construction without departing from the invention.
  • the heel member 1900 may include outsole member portions 1904 (e.g ., made of tough, wear-resistant materials) and/or traction elements 1906 similar to those provided on the base member 104, as illustrated in Fig. 18 .
  • the various traction elements 1906 and/or outsole members 1904, if any, on the heel member 1900 may differ in structure, materials, and the like from those provided as part of the remainder of the footwear structure without departing from the invention.
  • the heel members 1900 and/or outsole members 1800 may be attached to an exterior surface of the upper member 100 such that the upper member 100 (and particularly the base portion 104 of the upper member 100) is sandwiched between the midsole and the heel member and/or the outsole member 1800.
  • the major surface of the midsole faces major surfaces of the heel member 1900 and/or the outsole members 1800 with an intervening exterior surface 104 of the upper member 100 sandwiched therebetween.
  • the heel members 1900 and/or outsole members 1800 extend over and cover at least some portions of the exterior surface of the upper members 100 (e.g ., the base member 104 surface of the upper member 100).
  • aspects of the invention also relate to the final footwear products, as well as to the various intermediate products and assemblies used in making the footwear products, such as the various structures and assemblies produced during the various individual process steps described above in conjunction with Figs. 1-19 .
  • Structures in accordance with the invention, including the various intermediate structures described above, may be produced by any method without departing from the invention.
  • At least some footwear structures in accordance with the invention may have a very lightweight construction, particularly those having one or more of the following features: (a) at least a portion of the outsole formed from the upper member structure (optionally with traction elements attached thereto or attached to the midsole and extending through the base member of the upper member); (b) at least a portion of the outsole formed from outsole members attached to the upper member, e.g ., at locations of heavy wear; and (c) a lightweight heel member attached to the upper member, e.g ., a heel member including one or more air pockets or air bladders.
  • Such products may be particularly useful for athletic shoes, sport-specific shoes, and the like.

Abstract

Selon la présente invention, des procédés de fabrication d'articles chaussants consistent à (a) appliquer du ciment sur une surface d'une tige et/ou semelle intercalaire, (b) refroidir ladite tige et/ou semelle intercalaire afin que ces parties se déplacent par rapport à une autre en dépit de la présence du ciment, et (c) disposer la semelle intercalaire dans la tige. D'autres procédés consistent à (a) fournir une tige pourvue d'une chambre interne, (b) placer un élément préformé doté d'une partie de jeu de semelle intercalaire dans la chambre, (c) retirer l'élément préformé et (d) placer une semelle intercalaire dans la chambre. La tige et/ou semelle intercalaire peuvent contenir du ciment appliqué et être refroidies avant l'étape d'insertion, comme cela est susmentionné. Lorsqu'il est suffisamment refroidi, le ciment ne se lie pas immédiatement aux parties qui rentrent en contact avec lui, mais il permet le déplacement relatif de ces parties. Une fois que la semelle intercalaire est positionnée dans la tige, l'ensemble peut être chauffé afin d'activer le ciment et de fixer ensemble les parties.

Claims (10)

  1. Procédé comprenant les étapes consistant à :
    - appliquer un premier matériau de ciment (200) sur au moins une partie d'un élément de tige (100) destiné à être inséré dans une chambre intérieure (402) de l'élément de tige,
    - appliquer un second matériau de ciment (1102) sur au moins une partie d'une semelle intermédiaire (1100) destinée à venir en contact avec l'élément de tige lorsque la semelle intermédiaire est insérée dans l'élément de tige,
    - refroidir l'élément de tige et/ou la semelle intermédiaire de façon suffisante pour que la semelle intermédiaire et l'élément de tige se déplacent l'un par rapport à l'autre malgré la présence du premier et du second matériau de ciment, et
    - positionner la semelle intermédiaire dans la chambre intérieure de l'élément de tige de sorte qu'au moins un tronçon de la partie renfermant du ciment de la semelle intermédiaire vienne en contact et se déplace par rapport à au moins un tronçon de l'élément de tige et qu'au moins un tronçon de la partie renfermant du ciment de l'élément de tige vienne en contact et se déplace par rapport à au moins un tronçon de la semelle intermédiaire.
  2. Procédé conforme à la revendication 1,
    selon lequel
    la semelle intermédiaire (1100) est positionnée dans la chambre intérieure (402) de l'élément de tige (100) en passant à travers une ouverture de réception de pied (110) définie dans cet élément de tige.
  3. Procédé conforme à la revendication 1, comprenant en outre une étape consistant à fixer un élément de semelle d'usure (1800) sur au moins une partie de l'élément de tige (100).
  4. Procédé conforme à la revendication 3, comprenant en outre une étape consistant à fixer une unité de talon (1900) sur l'élément de tige (100).
  5. Procédé conforme à la revendication 1, comprenant en outre une étape consistant à fixer une unité de talon (1900) sur l'élément de tige (100).
  6. Procédé conforme à la revendication 1,
    selon lequel
    le premier matériau de ciment (200) est le même que le second matériau de ciment (1102).
  7. Procédé conforme à la revendication 1, comprenant en outre une étape consistant à insérer la semelle intermédiaire (1100) dans l'élément de tige (100) selon une orientation prédéfinie.
  8. Procédé conforme à la revendication 7,
    selon lequel
    l'étape d'insertion comporte une étape consistant à aligner au moins une partie en saillie (1106) équipant la semelle intermédiaire (1100) avec un évidement de réception (114) de cette partie en saillie défini dans l'élément de tige (100).
  9. Procédé conforme à la revendication 1, comprenant en outre une étape consistant, après la mise en place de la semelle intermédiaire (1100) dans la chambre intérieure (402) de l'élément de tige (100), à chauffer la semelle intermédiaire et l'élément de tige.
  10. Procédé conforme à la revendication 9, comprenant en outre une étape consistant comprimer la semelle intermédiaire (1100) et l'élément de tige (100) l'un avec l'autre.
EP05758399A 2004-06-04 2005-06-03 Procedes de fabrication d'articles chaussants Active EP1765106B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14169115.4A EP2769635B1 (fr) 2004-06-04 2005-06-03 Structures utilisées pour la fabrication de chaussures
EP11185678.7A EP2409590B1 (fr) 2004-06-04 2005-06-03 Procédés de fabrication de chaussures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86063804A 2004-06-04 2004-06-04
PCT/US2005/019488 WO2005120270A2 (fr) 2004-06-04 2005-06-03 Articles chaussants, leurs procedes de fabrication, et structures utilisees dans la fabrication desdits articles

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP14169115.4A Division EP2769635B1 (fr) 2004-06-04 2005-06-03 Structures utilisées pour la fabrication de chaussures
EP11185678.7A Division EP2409590B1 (fr) 2004-06-04 2005-06-03 Procédés de fabrication de chaussures
EP11185678.7 Division-Into 2011-10-18

Publications (2)

Publication Number Publication Date
EP1765106A2 EP1765106A2 (fr) 2007-03-28
EP1765106B1 true EP1765106B1 (fr) 2012-06-13

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EP11185678.7A Active EP2409590B1 (fr) 2004-06-04 2005-06-03 Procédés de fabrication de chaussures
EP05758399A Active EP1765106B1 (fr) 2004-06-04 2005-06-03 Procedes de fabrication d'articles chaussants
EP14169115.4A Active EP2769635B1 (fr) 2004-06-04 2005-06-03 Structures utilisées pour la fabrication de chaussures

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EP11185678.7A Active EP2409590B1 (fr) 2004-06-04 2005-06-03 Procédés de fabrication de chaussures

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Application Number Title Priority Date Filing Date
EP14169115.4A Active EP2769635B1 (fr) 2004-06-04 2005-06-03 Structures utilisées pour la fabrication de chaussures

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CN (1) CN100584234C (fr)
WO (1) WO2005120270A2 (fr)

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Publication number Priority date Publication date Assignee Title
KR101900210B1 (ko) * 2011-02-17 2018-09-18 나이키 이노베이트 씨.브이. 센서 시스템을 구비한 풋웨어
US10926133B2 (en) 2013-02-01 2021-02-23 Nike, Inc. System and method for analyzing athletic activity
US9301576B2 (en) * 2013-04-23 2016-04-05 Nike, Inc. Method of printing onto an article
CN112773050A (zh) * 2019-11-01 2021-05-11 中山宥威时尚科技有限公司 以真空定位辅助鞋面与鞋底接合的方法

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Publication number Priority date Publication date Assignee Title
US1565057A (en) 1924-03-10 1925-12-08 Chappell Frederick William Last for boots, shoes, and the like
US1757594A (en) * 1927-09-06 1930-05-06 New England Wood Heel Co Repaired last
US2175117A (en) * 1937-07-23 1939-10-03 Hack Shoe Company Shoe and insole forming last
US2563100A (en) * 1949-05-12 1951-08-07 United Shoe Machinery Corp Method of making shoes having predetermined uppers
US3878626A (en) * 1971-05-18 1975-04-22 Isman Claude Roger Detachable soles
US4706316A (en) * 1985-11-27 1987-11-17 Giancarlo Tanzi Method for producing footwear
US6226897B1 (en) * 1999-06-02 2001-05-08 Vans, Inc. Sports shoe interface
AU2000244990A1 (en) * 2000-05-01 2001-11-12 Kenton Geer Design Associates, Inc. Footwear structure and method of forming the same
US6662469B2 (en) * 2001-10-31 2003-12-16 Wolverine World Wide, Inc. Footwear construction and method for manufacturing same
ITPN20020056A1 (it) * 2002-07-18 2004-01-19 Mgm Spa Struttura di calzatura per pattini a rotelle o da ghiaccio.

Also Published As

Publication number Publication date
WO2005120270A3 (fr) 2006-05-26
CN101010016A (zh) 2007-08-01
EP2769635B1 (fr) 2017-08-02
EP2409590A1 (fr) 2012-01-25
CN100584234C (zh) 2010-01-27
EP1765106A2 (fr) 2007-03-28
EP2409590B1 (fr) 2014-10-08
EP2769635A1 (fr) 2014-08-27
WO2005120270A2 (fr) 2005-12-22

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