WO2017013216A1 - Coupling apparatus for fabrics and the like - Google Patents

Coupling apparatus for fabrics and the like Download PDF

Info

Publication number
WO2017013216A1
WO2017013216A1 PCT/EP2016/067436 EP2016067436W WO2017013216A1 WO 2017013216 A1 WO2017013216 A1 WO 2017013216A1 EP 2016067436 W EP2016067436 W EP 2016067436W WO 2017013216 A1 WO2017013216 A1 WO 2017013216A1
Authority
WO
WIPO (PCT)
Prior art keywords
fabric
die
flap
coupling
flaps
Prior art date
Application number
PCT/EP2016/067436
Other languages
French (fr)
Inventor
Daniele Civolani
Francesco Marchioni
Original Assignee
PIAZZI, Lorenzino
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 PIAZZI, Lorenzino filed Critical PIAZZI, Lorenzino
Publication of WO2017013216A1 publication Critical patent/WO2017013216A1/en

Links

Classifications

    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H43/00—Other methods, machines or appliances
    • A41H43/04—Joining garment parts or blanks by gluing or welding ; Gluing presses
    • 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
    • B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of 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
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • 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
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/344—Stretching or tensioning the joint area during joining
    • 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
    • B29C66/349—Cooling the welding zone on the welding spot
    • B29C66/3494—Cooling the welding zone on the welding spot while keeping the welding zone under pressure
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • 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
    • B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81455—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure
    • 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
    • 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
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • 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
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/522—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by spraying, e.g. by flame spraying
    • 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
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/526—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by printing or by transfer from the surfaces of elements carrying the adhesive, e.g. using brushes, pads, rollers, stencils or silk screens
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/62—Stitching
    • 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

Definitions

  • the present invention relates to a coupling apparatus for fabrics and the like.
  • Apparatuses for mutually coupling fabrics by adhesive bonding or thermal bonding which are constituted usually by a worktable, optionally heated, on which a presser acts.
  • the presser by compressing together the two flaps of fabric, between which a layer of adhesive or thermal bonding material has been interposed, facilitates their mutual coupling, also ensuring the blocking of such fabrics during the process.
  • the aim of the present invention is to solve the problems described above, by providing a coupling apparatus for fabrics and the like that allows to mutually couple the portions of fabrics and the like which, by having to assume once coupled a three-dimensional spatial contour, must necessarily be coupled along to an edge that has a three-dimensional spatial extension.
  • an object of the invention is to devise a coupling apparatus for fabrics and the like that allows rapid, effective, accurate and reliable coupling between the two portions of fabric along the entire edge thereof.
  • Another object of the invention is to devise a coupling apparatus for fabrics and the like that allows accurate and stable mutual positioning of the portions of fabric to be coupled.
  • a further object of the invention is to devise a coupling apparatus for fabrics and the like in which the portions of fabric to be coupled do not undergo unwanted stresses which might compromise the quality of the joint.
  • a further object of the present invention is to provide a coupling apparatus for fabrics and the like that has low costs, is relatively simple to provide in practice and is safe in application.
  • a coupling apparatus for fabrics and the like comprising a presser that acts on a respective die that defines a support for at least one first flap of fabric to be coupled to a second flap of fabric, characterized in that said die is substantially rigid, said presser comprising an element made of elastically deformable material, said element being functionally associated with a respective pneumatic device for the uniform forcing of its lower wall on said die, with the interposition of said underlying flaps of fabric.
  • Figure 1 is a perspective view of the coupling apparatus for fabrics and the like according to the invention.
  • Figure 2 is a perspective view of the die of the apparatus according to the invention.
  • Figure 3 is a sectional perspective view of the die of the apparatus according to the invention.
  • Figure 4 is a perspective view of the presser of the apparatus according to the invention.
  • Figure 5 is a sectional perspective view of a portion of the presser of the apparatus according to the invention.
  • Figure 6 is a sectional perspective view of the apparatus according to the invention.
  • Figure 7 is an exploded perspective view of the apparatus according to the invention.
  • Figure 8 is a perspective view of the die of the apparatus according to the invention in a first step of coupling of the fabrics
  • Figure 9 is a perspective view of a different embodiment of the apparatus according to the invention in a second step of coupling of the fabrics;
  • Figure 10 is a perspective view of the embodiment of the apparatus of Figure 9 according to the invention in a third intermediate step of coupling of the fabrics;
  • Figure 11 is a perspective view of the embodiment of the apparatus of Figure 9 according to the invention in the final step of coupling of the fabrics;
  • Figure 12 is a perspective view of a further embodiment of the apparatus according to the invention in a first step of coupling of the fabrics.
  • the numeral 1 generally designates a coupling apparatus for fabrics and the like.
  • the apparatus 1 comprises a presser 2 that acts on a respective die 3 that defines a support for at least one first flap of fabric 4 to be coupled to a second flap of fabric 5.
  • overlap of fabric is understood to include also a part, an edge, a region, an end, a margin, a shred, a fragment, a piece, a cutting, a strip, a band, a portion of fabric.
  • the die 3 is substantially rigid, providing a support for the flaps of fabric 4 and 5.
  • the presser 2 comprises an element 6 made of elastically deformable material.
  • the element 6 is functionally associated with a respective pneumatic device for the uniform forcing of its internal wall 7 onto the die 3, with the interposition of the underlying flaps of fabric 4 and 5.
  • the element 6 can have an internal cavity 8 that is connected to a plurality of openings 9 that are distributed on its internal wall 7.
  • the cavity 8 can be connected to air suction means.
  • the element 6 can consist of an enclosure A, made of elastically deformable material, which is coupled hermetically and is connected to respective air suction means.
  • Said means generate a pressure reduction, even to vacuum generation, inside the enclosure A, with consequent forcing of the enclosure A on the die 3, with interposition of the underlying flaps of fabric 4 and 5.
  • the enclosure A can have a flexible tubular shape, such as for example the shape of a bag.
  • the die 3 can be contoured to define a resting surface that has a shape and dimensions that are substantially complementary to those of the finished product to be provided, i.e., provided with contoured portions, concavities, inflections and convexities.
  • the accompanying Figure 12 exemplifies a die 3 that has substantially the shape of the collar of a shirt.
  • the die 3 can comprise, on its face 10 directed toward the flap of fabric 4 and 5, a plurality of removable inserts that are contoured to define a plurality of different resting surfaces whose shape and dimensions are substantially complementary to those of the various finished products to be provided.
  • the die 3 can be provided with internal cavities C that are connected to a plurality of through holes 11 defined on its face 10 directed toward the flap of fabric 4 and 5, such holes connecting the internal cavities C to the outside environment.
  • the cavities C can be connected to a respective suction unit.
  • suction unit causes the adhesion and consequent blocking of the flaps of fabric 4 and 5 to the face 10 of the die 3.
  • the layer 12 can be made of a material chosen preferably among adhesive, thermoadhesive, and the like.
  • the layer 12 can be applied to one or both of the flaps 4 and 5 by using a brush or by spraying.
  • the layer 12 can be applied on a protective sheet or inserted between two protective sheets.
  • the presence of the protective sheets allows to handle the layer 12, protecting it in particular from dust and dirt.
  • thermoadhesive material for types of fabric that are not resistant to the melting point of the chosen thermoadhesive material, in order to couple the two flaps of fabric 4 and 5 it is possible to use adhesive materials that do not require being heated.
  • the flap of fabric 4 provided with the layer 12 and with the second protective sheet, is arranged accurately on the die 3.
  • the apparatus 1 can comprise means 13 for heating at least one portion of the die 3.
  • the layer of coupling material 12 comprises thermoadhesive products.
  • the presence of the means 13 in fact allows the heating of the thermoadhesive material and therefore an optimum coupling between the two flaps of fabric 4 and 5.
  • the high-temperature fluid by flowing over the walls of the tube 14, transfers heat to the die 3.
  • the apparatus 1 can comprise means 13 for cooling at least one portion of the die 3.
  • the presence of the cooling means 13 allows to cool rapidly the flaps 4 and 5 of fabric for the cross-linking of the coupling layer 12 and allows the stable joining of the two flaps of fabric 4 and 5.
  • the cooling means 13 can comprise for example a tube 14 with metallic walls inside the die 3, in which a cooling fluid is made to flow for the rapid cooling of the die 3 and therefore of the flaps of fabric 4 and 5.
  • the cooling means 13 can be provided by means of an annular element provided with a plurality of respective nozzles for the emission of a refrigerated fluid (for example air).
  • a refrigerated fluid for example air.
  • the apparatus 1 according to the invention can be inserted in production lines in which other machines for coupling fabrics and the like of a known type are also operating which perform coupling by flat adhesive bonding or by sewing.
  • the method for coupling fabrics and the like with an apparatus 1 that comprises a presser 2 that acts on a respective die 3 that defines a support for at least one first flap 4 of fabric to be coupled to a second flap 5 of fabric consists in:
  • the application of the coupling layer 12 to the first flap can be provided before arranging the flap 4 on the die 3 in a time that is masked, also by using apparatuses for mutually coupling fabrics of a known type.
  • the method according to the invention can provide for another step that consists in actuating a suction element that is connected to a plurality of through holes 11 defined in the face 10 of the die 3 that is directed toward the flap of fabric 4 and 5.
  • the method according to the invention can provide for an additional step that consists in actuating heating means 13 for heating at least one portion of the die 3.
  • the method according to the invention can provide for an additional step that consists in actuating cooling means 13 for cooling at least one portion of the die 3.
  • the suction means must be deactivated only following the substantial and complete cooling of the flaps 4 and 5.
  • the chemical compounds that are present in the layer of coupling material 12 in fact cross-link after heat-sealing and only at low temperatures.
  • the apparatus 1 comprises the presser in the embodiment that provides for the presence of the enclosure A
  • such enclosure A is arranged so as to accommodate internally the die 3, on the surface of which the two flaps of fabric 4 and 5 have been applied beforehand, taking care to block the enclosure A around the suction duct 15.
  • the coupling apparatus 1 for fabrics and the like allows to mutually couple the portions of fabrics and the like that by having to assume, once coupled, a three-dimensional spatial contour, must necessarily be coupled along an edge that has a three-dimensional spatial extension.
  • the coupling apparatus 1 for fabrics and the like allows quick, effective, accurate and reliable coupling between the two portions of fabric along the entire edge thereof.
  • the apparatus 1 according to the invention allows accurate and stable mutual positioning of the portions of fabric to be coupled.
  • the coupling apparatus for fabrics and the like 1 has such characteristics that the portions of fabric to be coupled are not subjected to unwanted stresses that might compromise the quality of the joint.
  • the invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims; all the details may further be replaced with other technically equivalent elements.
  • the materials used, as well as the dimensions, may be any according to requirements and to the state of the art.

Abstract

A coupling apparatus (1) for fabrics and the like, comprising a presser (2) that acts on a respective die (3) that defines a support for at least one first flap of fabric (4) to be coupled to a second flap of fabric (5); the die (3) being substantially rigid; the presser (2) comprises an element (6) made of elastically deformable material and is functionally associated with a respective pneumatic device for the uniform forcing of its internal wall (7) on the die (3), with the interposition of the underlying flaps of fabric (4, 5); the expression "flap of fabric" is understood to include also a part, an edge, a region, an end, a margin, a shred, a fragment, a piece, a cutting, a strip, a band, a portion of fabric.

Description

COUPLING APPARATUS FOR FABRICS AND THE LIKE
The present invention relates to a coupling apparatus for fabrics and the like.
It is known that in the making of an item of clothing the stitched seams and the joints are a considerable factor both in manufacturing and for the functional and aesthetic aspects.
These points can in fact cause, or vice versa compromise, aesthetics, functionality, waterproofing where required and the very durability of the item.
For these reasons, in recent years the various flaps of fabric that compose the item of clothing, instead of being sewn to each other, can be mutually glued or subjected to thermal bonding.
These solutions allow to achieve a performance, in terms of aesthetics, waterproofing and durability of the item, which is similar if not higher than that of a traditional stitched seam.
Apparatuses for mutually coupling fabrics by adhesive bonding or thermal bonding are known which are constituted usually by a worktable, optionally heated, on which a presser acts.
The presser, by compressing together the two flaps of fabric, between which a layer of adhesive or thermal bonding material has been interposed, facilitates their mutual coupling, also ensuring the blocking of such fabrics during the process.
These apparatuses allow to spread the surface pressure in a substantially uniform manner thanks to the fact that the presser and the worktable are flat.
However, these apparatuses do not allow to couple in an efficient, precise and reliable manner flaps of fabric which, once coupled, necessarily must have a non-planar shape (i.e., have three-dimensional contours), such as for example, in the case of an item of clothing, the cuffs, sleeves, collar and the like, or in a rucksack, bag or sac, the corner portions. Existing apparatuses for coupling by adhesive bonding or thermal bonding of the flaps that have to assume three-dimensional contours not only might cause unwanted stretching and extensions of the fabric but might also cause the displacement of the flaps of fabric during the coupling process, causing possible lacks of contiguity between them, and the consequent occurrence of aesthetic and functional defects.
The aim of the present invention is to solve the problems described above, by providing a coupling apparatus for fabrics and the like that allows to mutually couple the portions of fabrics and the like which, by having to assume once coupled a three-dimensional spatial contour, must necessarily be coupled along to an edge that has a three-dimensional spatial extension.
Within this aim, an object of the invention is to devise a coupling apparatus for fabrics and the like that allows rapid, effective, accurate and reliable coupling between the two portions of fabric along the entire edge thereof.
Another object of the invention is to devise a coupling apparatus for fabrics and the like that allows accurate and stable mutual positioning of the portions of fabric to be coupled.
A further object of the invention is to devise a coupling apparatus for fabrics and the like in which the portions of fabric to be coupled do not undergo unwanted stresses which might compromise the quality of the joint.
A further object of the present invention is to provide a coupling apparatus for fabrics and the like that has low costs, is relatively simple to provide in practice and is safe in application.
This aim and these and other objects that will become more apparent hereinafter are achieved by a coupling apparatus for fabrics and the like, comprising a presser that acts on a respective die that defines a support for at least one first flap of fabric to be coupled to a second flap of fabric, characterized in that said die is substantially rigid, said presser comprising an element made of elastically deformable material, said element being functionally associated with a respective pneumatic device for the uniform forcing of its lower wall on said die, with the interposition of said underlying flaps of fabric.
This aim and these objects are also achieved by means of a method for coupling fabrics with an apparatus comprising a presser that acts on a respective die that defines a support for at least one first flap of fabric to be coupled to a second flap of fabric, which consists in:
- applying a layer of coupling material on the first flap of fabric;
- arranging said first flap of fabric, provided with said coupling layer, above said die;
- arranging said second flap of fabric on said layer;
- arranging an elastically deformable element of said presser so that it faces and is proximate to said two flaps of fabric;
- actuating, for a predefined time interval, a pneumatic device functionally associated with said element, for the uniform forcing of its lower wall onto said die, with the interposition of said underlying flaps of fabric;
- removing, after a predefined time, said element;
- removing the finished product.
Further characteristics and advantages of the invention will become better apparent from the description of a preferred but not exclusive embodiment of the coupling apparatus for fabrics and the like according to the invention, illustrated by way of nonlimiting example in the accompanying drawings, wherein:
Figure 1 is a perspective view of the coupling apparatus for fabrics and the like according to the invention;
Figure 2 is a perspective view of the die of the apparatus according to the invention;
Figure 3 is a sectional perspective view of the die of the apparatus according to the invention;
Figure 4 is a perspective view of the presser of the apparatus according to the invention;
Figure 5 is a sectional perspective view of a portion of the presser of the apparatus according to the invention;
Figure 6 is a sectional perspective view of the apparatus according to the invention;
Figure 7 is an exploded perspective view of the apparatus according to the invention;
Figure 8 is a perspective view of the die of the apparatus according to the invention in a first step of coupling of the fabrics;
Figure 9 is a perspective view of a different embodiment of the apparatus according to the invention in a second step of coupling of the fabrics;
Figure 10 is a perspective view of the embodiment of the apparatus of Figure 9 according to the invention in a third intermediate step of coupling of the fabrics;
Figure 11 is a perspective view of the embodiment of the apparatus of Figure 9 according to the invention in the final step of coupling of the fabrics;
Figure 12 is a perspective view of a further embodiment of the apparatus according to the invention in a first step of coupling of the fabrics.
With reference to the figures, the numeral 1 generally designates a coupling apparatus for fabrics and the like.
The apparatus 1 comprises a presser 2 that acts on a respective die 3 that defines a support for at least one first flap of fabric 4 to be coupled to a second flap of fabric 5.
The expression "flap of fabric" is understood to include also a part, an edge, a region, an end, a margin, a shred, a fragment, a piece, a cutting, a strip, a band, a portion of fabric.
According to the invention, the die 3 is substantially rigid, providing a support for the flaps of fabric 4 and 5. In particular, the presser 2 comprises an element 6 made of elastically deformable material.
The element 6 is functionally associated with a respective pneumatic device for the uniform forcing of its internal wall 7 onto the die 3, with the interposition of the underlying flaps of fabric 4 and 5.
According to a solution that is particularly useful and practical, shown in Figures 1, 4, 5, 6 and 7, the element 6 can have an internal cavity 8 that is connected to a plurality of openings 9 that are distributed on its internal wall 7.
The cavity 8 can be connected to air suction means.
The pressure reduction, even to vacuum generation, induced by the air suction means in the cavity 8 causes the forced adhesion and the consequent compression of the element 6 on the die 3, with the optional interposition of the underlying flaps of fabric 4 and 5, due to atmospheric pressure.
The presence of the openings 9 on the entire internal wall 7 of the element 6 causes the pressure between the element 6 and the flaps of fabric 4 and 5 to be uniform in every point.
This will allow to avoid unwanted stretching and extensions of the flaps of fabric 4 and 5.
According to a solution that is particularly efficient and effective, shown in the accompanying Figures 9 to 12, the element 6 can consist of an enclosure A, made of elastically deformable material, which is coupled hermetically and is connected to respective air suction means.
Said means generate a pressure reduction, even to vacuum generation, inside the enclosure A, with consequent forcing of the enclosure A on the die 3, with interposition of the underlying flaps of fabric 4 and 5.
The enclosure A can have a flexible tubular shape, such as for example the shape of a bag.
According to a solution that is particularly useful and practical, shown in the accompanying figures, the die 3 can be contoured to define a resting surface that has a shape and dimensions that are substantially complementary to those of the finished product to be provided, i.e., provided with contoured portions, concavities, inflections and convexities.
The accompanying Figure 12 exemplifies a die 3 that has substantially the shape of the collar of a shirt.
The die 3 can comprise, on its face 10 directed toward the flap of fabric 4 and 5, a plurality of removable inserts that are contoured to define a plurality of different resting surfaces whose shape and dimensions are substantially complementary to those of the various finished products to be provided.
The die 3 can be provided with internal cavities C that are connected to a plurality of through holes 11 defined on its face 10 directed toward the flap of fabric 4 and 5, such holes connecting the internal cavities C to the outside environment.
The cavities C can be connected to a respective suction unit.
The action of such suction unit causes the adhesion and consequent blocking of the flaps of fabric 4 and 5 to the face 10 of the die 3.
In this manner it is likewise simple and quick for the operator to arrange the flaps of fabric 4 and 5 on the die 3 without them being able to slip or move.
Furthermore, a correct and stable placement of the flaps of fabric 4 and 5 will avoid any unwanted stretching and extensions of the flaps of fabric 4 and 5 during the coupling process.
It is possible to interpose, between the first flap of fabric 4 and the second flap of fabric 5, a layer of material 12 for their mutual coupling.
In particular, the layer 12 can be made of a material chosen preferably among adhesive, thermoadhesive, and the like.
The layer 12 can be applied to one or both of the flaps 4 and 5 by using a brush or by spraying. The layer 12 can be applied on a protective sheet or inserted between two protective sheets.
The presence of the protective sheets allows to handle the layer 12, protecting it in particular from dust and dirt.
For types of fabric that are not resistant to the melting point of the chosen thermoadhesive material, in order to couple the two flaps of fabric 4 and 5 it is possible to use adhesive materials that do not require being heated.
If a layer of coupling material 12 provided with two protective sheets is used, it is necessary to remove beforehand the first protective sheet in order to associate the adhesive intermediate layer 12 with the edge of the first or of both of the flaps of fabric 4 and 5 before proceeding with their coupling.
The flap of fabric 4, provided with the layer 12 and with the second protective sheet, is arranged accurately on the die 3.
One then proceeds with the removal of the residual protective sheet from the first or from both of the flaps of fabric 4 and 5 and subsequently with the manual placement of the second flap of fabric 5 on the die 3.
In this step is necessary to verify carefully that the edge of the second flap of fabric 5, provided or not with the layer 12, is arranged above the layer 12 previously applied to the first flap 4.
More particularly, the apparatus 1 can comprise means 13 for heating at least one portion of the die 3.
This solution is preferable if the layer of coupling material 12 comprises thermoadhesive products.
The presence of the means 13 in fact allows the heating of the thermoadhesive material and therefore an optimum coupling between the two flaps of fabric 4 and 5.
In any case, the possibility is not excluded to arrange inside the die 3 a tube 14 with metallic walls inside which a high-temperature fluid is made to flow.
The high-temperature fluid, by flowing over the walls of the tube 14, transfers heat to the die 3.
In any case, the possibility to use other heating technologies to add heat to the die 3 is not excluded.
More particularly, the apparatus 1 can comprise means 13 for cooling at least one portion of the die 3.
The presence of the cooling means 13 allows to cool rapidly the flaps 4 and 5 of fabric for the cross-linking of the coupling layer 12 and allows the stable joining of the two flaps of fabric 4 and 5.
The cooling means 13 can comprise for example a tube 14 with metallic walls inside the die 3, in which a cooling fluid is made to flow for the rapid cooling of the die 3 and therefore of the flaps of fabric 4 and 5.
As an alternative, the cooling means 13 can be provided by means of an annular element provided with a plurality of respective nozzles for the emission of a refrigerated fluid (for example air). The annular element, and therefore the nozzles, faces and is proximate to the flaps of fabric 4 and 5 above the die 3.
In any case, the possibility to use additional and different cooling means 13 is not excluded.
The apparatus 1 according to the invention can be inserted in production lines in which other machines for coupling fabrics and the like of a known type are also operating which perform coupling by flat adhesive bonding or by sewing.
In particular, the method for coupling fabrics and the like with an apparatus 1 that comprises a presser 2 that acts on a respective die 3 that defines a support for at least one first flap 4 of fabric to be coupled to a second flap 5 of fabric consists in:
- applying a coupling layer 12 on the first flap of fabric 4;
- arranging the first flap of fabric 4, provided with the coupling layer 12, above the die 3;
- arranging the second flap 5 of fabric on the die 3 contiguously with the flap 4 and superimposing it on the layer 12;
- arranging an elastically deformable element 6 of the presser 2, so that it faces and is proximate to the two flaps of fabric 4 and 5;
- operating, for a predefined time interval, a pneumatic device that is functionally associated with the element 6, for the uniform forcing of its lower wall 7 onto the die 3, with the interposition of the underlying flaps of fabric;
- removing the element 6 after a predefined time;
- removing the finished product.
The application of the coupling layer 12 to the first flap can be provided before arranging the flap 4 on the die 3 in a time that is masked, also by using apparatuses for mutually coupling fabrics of a known type.
The method according to the invention can provide for another step that consists in actuating a suction element that is connected to a plurality of through holes 11 defined in the face 10 of the die 3 that is directed toward the flap of fabric 4 and 5.
In particular, the method according to the invention can provide for an additional step that consists in actuating heating means 13 for heating at least one portion of the die 3.
More particularly, the method according to the invention can provide for an additional step that consists in actuating cooling means 13 for cooling at least one portion of the die 3.
It is useful to specify that it is essential to keep the flaps of fabric 4 and 5 under tension (by means of the action of the suction means) both during the action of the pneumatic device and when the heating means 13 and/or the cooling means 13 are in operation.
In particular, the suction means must be deactivated only following the substantial and complete cooling of the flaps 4 and 5. The chemical compounds that are present in the layer of coupling material 12 in fact cross-link after heat-sealing and only at low temperatures.
Accordingly, if the flaps 4 and 5 have not cooled completely, the chemical compounds that are present in the coupling layer 12 do not crosslink and therefore even an accidental displacement of the flaps 4 and 5 might lead to their separation.
If the apparatus 1 comprises the presser in the embodiment that provides for the presence of the enclosure A, such enclosure A is arranged so as to accommodate internally the die 3, on the surface of which the two flaps of fabric 4 and 5 have been applied beforehand, taking care to block the enclosure A around the suction duct 15.
Subsequently, one proceeds by operating the air suction means, which produce a pressure reduction, even to vacuum generation, inside the enclosure A, causing the forcing of the enclosure A onto the die 3 and onto the two flaps of fabric 4 and 5 to be coupled.
Advantageously, the coupling apparatus 1 for fabrics and the like allows to mutually couple the portions of fabrics and the like that by having to assume, once coupled, a three-dimensional spatial contour, must necessarily be coupled along an edge that has a three-dimensional spatial extension.
Effectively, the coupling apparatus 1 for fabrics and the like allows quick, effective, accurate and reliable coupling between the two portions of fabric along the entire edge thereof.
Usefully, the apparatus 1 according to the invention allows accurate and stable mutual positioning of the portions of fabric to be coupled.
Conveniently, the coupling apparatus for fabrics and the like 1 has such characteristics that the portions of fabric to be coupled are not subjected to unwanted stresses that might compromise the quality of the joint. The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims; all the details may further be replaced with other technically equivalent elements.
In the exemplary embodiments shown, individual characteristics, given in relation to specific examples, may actually be interchanged with other different characteristics that exist in other exemplary embodiments.
In practice, the materials used, as well as the dimensions, may be any according to requirements and to the state of the art.
The disclosures in Italian Patent Application No. 102015000037266
(UB2015A002438) from which this application claims priority are incorporated herein by reference.
Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference signs.

Claims

1. A coupling apparatus for fabrics and the like, comprising a presser (2) that acts on a respective die (3) that defines a support for at least one first flap of fabric (4) to be coupled to a second flap of fabric (5), characterized in that said die (3) is substantially rigid, said presser (2) comprising an element (6) made of elastically deformable material, said element (6) being functionally associated with a respective pneumatic device for the uniform forcing of its internal wall (7) on said die (3), with the interposition of said underlying flaps of fabric (4, 5).
2. The apparatus according to claim 1, characterized in that said element (6) is provided with an internal cavity (8) that is connected to a plurality of openings (9) that are distributed on its internal wall (7), said cavity (8) being connected to air suction means, the pressure reduction, even to vacuum generation, induced by said means in said cavity (8) producing the compression of said element (6) on said die (3), with the interposition of said underlying flaps of fabric, by way of the action of atmospheric pressure.
3. The apparatus according to claim 1, characterized in that said element (6) consists of an enclosure (A) that is coupled hermetically and is connected to respective air suction means, said means generating a pressure reduction, even to vacuum generation, inside said enclosure (A), with consequent forcing of said enclosure (A) on said die (3), with the interposition of said underlying flaps of fabric (4, 5).
4. The apparatus according to claim 1, characterized in that said die (3) is contoured to define a resting surface whose shape and dimensions are substantially complementary to those of the finished product to be provided, i.e., provided with contoured portions, concavities, inflections and convexities.
5. The apparatus according to one or more of the preceding claims, characterized in that said die (3) comprises, on its face (10) directed toward the flap of fabric (4, 5), a plurality of removable inserts that are contoured to define a plurality of different resting areas whose shape and dimensions are substantially complementary to those of the various finished products to be provided.
6. The apparatus according to one or more of the preceding claims, characterized in that said die (3) is provided with internal cavities (C) that are connected to a plurality of through holes (11) defined on its face (10) that is directed toward the flap of fabric (4, 5), said holes connecting the internal cavities (C) to the outside environment, said cavities (C) being connected to a respective suction unit, the action of said suction unit producing the adhesion and blocking of said at least one flap of fabric (4, 5) to said die (3).
7. The apparatus according to one or more of the preceding claims, characterized in that a layer of coupling material (12) is interposed between said first flap of fabric (4) and said second flap of fabric (5), said layer being made of a material chosen preferably among adhesive, thermoadhesive and the like.
8. The apparatus according to one or more of the preceding claims, characterized in that it comprises means (13) for heating/cooling at least one portion of said die (3).
9. A method for coupling fabrics with an apparatus comprising a presser (2) that acts on a respective die (3) that defines a support for at least one first flap of fabric (4) to be coupled to a second flap of fabric (5), which consists in:
- applying a layer of coupling material (12) on the first flap of fabric (4);
- arranging said first flap of fabric (4), provided with said coupling layer (12), above said die (3);
- arranging said second flap of fabric (5) on said layer (12);
- arranging an elastically deformable element (6) of said presser (2) so that it faces and is proximate to said two flaps of fabric (4, 5); - actuating, for a predefined time interval, a pneumatic device functionally associated with said element (6), for the uniform forcing of its lower wall onto said die (3), with the interposition of said underlying flaps of fabric (4,
5);
- lifting, after a predefined time, said element (6);
- removing the finished product.
10. The method according to claim 9, which consists in:
- operating a suction unit connected to a plurality of through holes (11) defined on the face (10) of the die (3) that is directed toward the flap of fabric (4, 5).
11. The method according to claim 9, which consists in:
- operating means (13) for heating at least one portion of said die (3).
12. The method according to claim 9, which consists in:
- operating means (13) for cooling at least one portion of said die (3).
PCT/EP2016/067436 2015-07-23 2016-07-21 Coupling apparatus for fabrics and the like WO2017013216A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUB2015A002438A ITUB20152438A1 (en) 2015-07-23 2015-07-23 COUPLING APPARATUS FOR FABRICS AND THE LIKE
IT102015000037266 2015-07-23

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WO2017013216A1 true WO2017013216A1 (en) 2017-01-26

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WO (1) WO2017013216A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030010439A1 (en) * 2001-07-16 2003-01-16 Fenton Jay Thomas Seam sealing apparatus and process therefor
WO2008009420A2 (en) * 2006-07-17 2008-01-24 Novurania S.P.A. Method for connecting two fabric pieces, and seam of two fabric pieces
EP1886807A1 (en) * 2002-01-04 2008-02-13 Rick Fowler Liquid proof woven fabric
US20110083787A1 (en) * 2009-10-12 2011-04-14 Miller Weldmaster Corporation Method of impulse welding non-waterproof, digitally printable fabrics
EP2404741A1 (en) * 2010-07-09 2012-01-11 Macpi Pressing Division S.P.A. Machine to join or tape a fabric

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030010439A1 (en) * 2001-07-16 2003-01-16 Fenton Jay Thomas Seam sealing apparatus and process therefor
EP1886807A1 (en) * 2002-01-04 2008-02-13 Rick Fowler Liquid proof woven fabric
WO2008009420A2 (en) * 2006-07-17 2008-01-24 Novurania S.P.A. Method for connecting two fabric pieces, and seam of two fabric pieces
US20110083787A1 (en) * 2009-10-12 2011-04-14 Miller Weldmaster Corporation Method of impulse welding non-waterproof, digitally printable fabrics
EP2404741A1 (en) * 2010-07-09 2012-01-11 Macpi Pressing Division S.P.A. Machine to join or tape a fabric

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