IT202000027107A1 - "METHOD FOR THE ADHESION OF UPPER FABRIC ELEMENTS, BY MEANS OF THERMAL PROCESS WITH SHORT-WAVE RADIATION" - Google Patents

"METHOD FOR THE ADHESION OF UPPER FABRIC ELEMENTS, BY MEANS OF THERMAL PROCESS WITH SHORT-WAVE RADIATION" Download PDF

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Publication number
IT202000027107A1
IT202000027107A1 IT102020000027107A IT202000027107A IT202000027107A1 IT 202000027107 A1 IT202000027107 A1 IT 202000027107A1 IT 102020000027107 A IT102020000027107 A IT 102020000027107A IT 202000027107 A IT202000027107 A IT 202000027107A IT 202000027107 A1 IT202000027107 A1 IT 202000027107A1
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IT
Italy
Prior art keywords
short
uppers
thermal process
elements
fabric
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IT102020000027107A
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Italian (it)
Inventor
Felice Scarnera
Benedetto Scarnera
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S F B S R L
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Priority to IT102020000027107A priority Critical patent/IT202000027107A1/en
Publication of IT202000027107A1 publication Critical patent/IT202000027107A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02Uppers; Boot legs
    • A43B23/0245Uppers; Boot legs characterised by the constructive form
    • A43B23/0255Uppers; Boot legs characterised by the constructive form assembled by gluing or thermo bonding
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02Uppers; Boot legs
    • A43B23/0205Uppers; Boot legs characterised by the material
    • A43B23/0215Plastics or artificial leather
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02Uppers; Boot legs
    • A43B23/0245Uppers; Boot legs characterised by the constructive form
    • A43B23/0295Pieced uppers
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D25/00Devices for gluing shoe parts
    • A43D25/20Arrangements for activating or for accelerating setting of adhesives, e.g. by using heat
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D95/00Shoe-finishing machines
    • A43D95/10Drying or heating devices for shoes
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D95/00Shoe-finishing machines
    • A43D95/12Devices for conditioning, tempering, or moistening
    • A43D95/125Devices for conditioning, tempering, or moistening with means, e.g. transport chains, for continuously transferring shoes through the devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1406Ultraviolet [UV] radiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1464Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface making use of several radiators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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
    • B29C66/729Textile or other fibrous material made from plastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General 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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General 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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921General 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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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
    • B29C66/8145General 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
    • B29C66/81455General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00Producing footwear
    • B29D35/12Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/128Moulds or apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00Producing footwear
    • B29D35/12Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/14Multilayered parts
    • B29D35/142Soles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00Producing footwear
    • B29D35/12Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/14Multilayered parts
    • B29D35/148Moulds or apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/48Wearing apparel
    • B29L2031/50Footwear, e.g. shoes or parts thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/48Wearing apparel
    • B29L2031/50Footwear, e.g. shoes or parts thereof
    • B29L2031/505Uppers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

Descrizione della domanda del brevetto per invenzione industriale dal titolo: Description of the patent application for an industrial invention entitled:

?Metodo per la adesione di elementi in tessuto di tomaie, mediante processo termico ad irraggiamento di onde corte? ?Method for the adhesion of fabric elements of uppers, by means of short-wave irradiation thermal process?

Il trovato oggetto del presente brevetto per invenzione industriale, concerne un metodo per la realizzazione di tomaie in tessuto, composte da diversi strati di materiali tessili, attraverso un processo di adesione termica, che impiega come fonte di calore delle lampade radianti ad onde corte. The invention object of the present patent for industrial invention, concerns a method for making fabric uppers, composed of different layers of textile materials, through a process of thermal adhesion, which uses short-wave radiant lamps as a heat source.

Il trovato rappresenta una efficace soluzione alla realizzazione delle tomaie multistrato, in quanto consente di realizzarle interamente con un?unica fase di lavorazione, attraverso un processo termico che si sostituisce a tutte le lavorazioni, tipicamente manuali, che contraddistinguono il ciclo di realizzazione di tali tomaie in tessuto. The invention represents an effective solution for making multi-layer uppers, as it allows them to be made entirely with a single manufacturing step, through a thermal process which replaces all the typically manual processes which distinguish the manufacturing cycle of such uppers in fabric.

Le tomaie in tessuto sono inoltre spesso corredate da elementi plastici, costituiti da inserti con funzioni strutturali o inclusioni di altri elementi per fini estetici, la cui applicazione generalmente grava non poco sui tempi del ciclo produttivo, con i metodi di fabbricazione noti. The uppers in fabric are also often accompanied by plastic elements, consisting of inserts with structural functions or inclusions of other elements for aesthetic purposes, the application of which generally weighs heavily on the times of the production cycle, with known manufacturing methods.

Il processo di fabbricazione delle tomaie multistrato viene tipicamente eseguito legando fra loro gli elementi che costituiscono la fodera interna, le eventuali imbottiture, la copertura esterna, il puntale ed il contrafforte posteriore, a mezzo di una serie di cuciture, unitamente all'impiego di collanti e seguendo specifiche lavorazioni che comprendono pi? fasi operative eseguite da diverso personale. The manufacturing process of the multilayer uppers is typically performed by tying together the elements that make up the inner lining, any padding, the outer cover, the toe cap and the rear buttress, by means of a series of seams, together with the use of adhesives and following specific processes that include more? operational phases performed by different personnel.

L'inclusione di elementi strutturali rigidi nelle tomaie, come ad esempio nel caso delle calzature antinfortunistiche, impegna non poco gli operatori, per il fatto di dover prima assicurare con molta precisione tali elementi alle tomaie, a mezzo di colle speciali e, di seguito, per il fatto di dover cucire gli ulteriori strati successivi superiori, con molta perizia per ottenere una tomaia complessiva dall'aspetto uniforme. The inclusion of rigid structural elements in the uppers, as for example in the case of safety shoes, commits the operators considerably, due to the fact that they must first secure these elements to the uppers with great precision, by means of special glues and, subsequently, due to having to sew the further successive upper layers, with a lot of skill to obtain an overall upper with a uniform appearance.

Generalmente, il processo di fabbricazione delle tomaie in tessuto parte dalla realizzazione di complesse sagome piane intagliate, i cui lembi, alle loro estremit?, vengono uniti da cuciture su dei modelli di lavorazione, per consentire di eseguire correttamente le cuciture ed ottenere la esatta forma da realizzare. Generally, the manufacturing process of fabric uppers starts from the creation of complex flat carved shapes, the edges of which, at their ends, are joined by stitching on working models, to allow the stitching to be performed correctly and to obtain the exact shape to realize.

A titolo di esempio, un punto critico del processo di fabbricazione della tomaia in tessuto, risulta essere la cucitura del contrafforte, posizionato superiormente nella zona del tacco, che serve non solo per sorreggere la zona del tallone, ma anche per coprire la zona posteriore della calzatura, dove vengono giuntati i due lembi di tessuto, che concorrono alla chiusura della zona posteriore delle tomaie. By way of example, a critical point in the manufacturing process of the upper in fabric is the stitching of the buttress, positioned above in the heel area, which serves not only to support the heel area, but also to cover the back area of the footwear, where the two flaps of fabric are joined, which contribute to the closure of the rear area of the uppers.

Una ulteriore fase di lavorazione nel processo di realizzazione delle tomaie in tessuto, ? costituita dalla applicazione degli occhielli per il passaggio delle stringhe, realizzati con orlature cucite o con applicazioni di anelli rigidi da graffare, che impegnano una intera fase lavorativa, eseguita a mano da personale o da attrezzature dedicate. A further manufacturing phase in the manufacturing process of the uppers in fabric, ? consisting of the application of the eyelets for the passage of the strings, made with stitched hems or with applications of rigid rings to be stapled, which involve an entire working phase, carried out by hand by personnel or by dedicated equipment.

Ancora una fase del processo di fabbricazione delle tomaie in tessuto, riguarda l'applicazione di elementi con funzione decorativa, spesso costituiti da sagomate colorate, elementi di diverso materiale, come pelle o simil-pelle, che vengono applicati al di sopra della tomaia per incollaggio, oppure in altri casi cuciti direttamente. Another phase of the manufacturing process of the fabric uppers concerns the application of elements with a decorative function, often made up of shaped colored elements of different materials, such as leather or imitation leather, which are applied on top of the upper by gluing , or in other cases sewn directly.

Infine, una ulteriore fase per la realizzazione delle tomaie in tessuto, ? spesso costituta dalla applicazione di loghi che contraddistinguono il brand della azienda produttrice e spesso da scritte che individuano il modello del prodotto, generalmente applicati con processi serigrafici, realizzati da attrezzature dedicate. Finally, a further phase for the realization of the uppers in fabric, ? often consisting of the application of logos that distinguish the brand of the manufacturing company and often of writings that identify the product model, generally applied with screen-printing processes, made by dedicated equipment.

Il metodo oggetto del presente brevetto per invenzione industriale, rappresenta una eccezionale soluzione tecnica per la realizzazione di tomaie in tessuto, rispetto ai processi di fabbricazione noti, in quanto si prefigge di impiegare materiali tessili, nella cui trama sono presenti inclusioni di termoplastici sensibili al calore, i quali scaldati dalla radiazione di lampade ad onde corte, generano la coesione degli strati di tessuto accoppiati, rendendoli un unico elemento. The method which is the object of this patent for an industrial invention represents an exceptional technical solution for the production of uppers in fabric, compared to known manufacturing processes, since it aims to use textile materials, in the weave of which there are inclusions of heat-sensitive thermoplastics , which, heated by the radiation of short-wave lamps, generate the cohesion of the coupled layers of fabric, making them a single element.

Un ulteriore scopo del trovato, ? quello di poter facilmente includere e con estrema facilit?, nel processo di coesione degli strati tessili, inserti di varia natura, come puntali o elementi decorativi o qualsiasi altro tipo di elemento da applicare, non di natura tessile, posizionandoli correttamente e all'interno degli strati tessili, prima della fase del riscaldamento ed inglobandoli senza apporto di adesivi o cuciture di alcun genere. Another object of the invention is that of being able to easily and extremely easily include, in the process of cohesion of the textile layers, inserts of various kinds, such as tips or decorative elements or any other type of element to be applied, not of a textile nature, positioning them correctly and within the textile layers, before the heating phase and incorporating them without adding adhesives or seams of any kind.

Un vantaggio del presente metodo, ? costituito dal fatto di poter applicare esternamente film sensibili al calore, per corredare il prodotto finito di decorazioni, preventivamente gi? serigrafate sul film, di qualsiasi forma e natura, non facilmente ottenibili con i processi di fabbricazione noti, se non con ulteriori fasi lavorative e con attrezzature specifiche. An advantage of this method, ? constituted by the fact of being able to apply heat-sensitive films externally, to equip the finished product with decorations, previously already? screen-printed on the film, of any shape and nature, not easily obtainable with known manufacturing processes, if not with further processing steps and with specific equipment.

? ancora un vantaggio del trovato, il fatto di poter ottenere tomaie in tessuto di tipo idrorepellente, applicando come strato finale speciali pellicole sensibili al calore, che a fine processo conferiranno, nella tomaia finale, propriet? diversamente igroscopiche. ? another advantage of the invention is the fact of being able to obtain water-repellent fabric uppers by applying special heat-sensitive films as the final layer, which at the end of the process will give the final upper properties differently hygroscopic.

Questi e ulteriori scopi, sono raggiunti dal metodo per la adesione di elementi in tessuto di tomaie, mediante processo termico ad irraggiamento di onde corte del presente brevetto industriale, descritto in un?esecuzione preferita non limitativa di ulteriori sviluppi nell?ambito del brevetto, con l?aiuto delle tavole di disegno allegate che illustrano le seguenti figure: These and further objects are achieved by the method for adhering fabric elements of uppers, by means of a short-wave irradiation thermal process of the present industrial patent, described in a preferred non-limiting embodiment of further developments within the patent, with the help of the attached drawing tables illustrating the following figures:

Fig. 1, una vista isometrica della forma sulla quale ? infilata una prima calza di tessuto; Fig. 1, an isometric view of the form on which ? a first fabric stocking is inserted;

Fig. 2, una vista isometrica della forma sulla quale ? assemblata una soletta ed un puntale; Fig. 2, an isometric view of the shape on which ? assembled an insole and a toe cap;

Fig. 3, una vista isometrica della forma sulla quale ? infilata la seconda calza di tessuto; Fig. 3, an isometric view of the form on which ? the second fabric sock is inserted;

Fig. 4, una vista isometrica dell'attrezzatura sulla quale viene vincolata la forma; Fig. 5, una vista isometrica della fase della generazione del vuoto all'interno della guaina siliconica; Fig. 4, an isometric view of the fixture on which the shape is constrained; Fig. 5 , an isometric view of the vacuum generation step inside the silicone sheath;

Fig. 6, una vista isometrica della introduzione della forma all'interno del contenitore delle lampade radianti. Fig. 6, an isometric view of the introduction of the form inside the container of the radiant lamps.

Come illustrato nelle figure allegate, il metodo per la adesione di elementi in tessuto di tomaie, mediante processo termico ad irraggiamento di onde corte, viene realizzato a mezzo di una forma 1, che ricalca il modello da realizzare, sulla quale vengono infilati sia delle calze di tessuto 21, 22 e sia una guaina siliconica 3 e tutti questi ultimi vengono impegnati su di una attrezzatura funzionale 4, contemporaneamente idonea sia a generare il vuoto e sia ad introdurre la forma 1 all'interno di un contenitore 5, dotato internamente di una serie di lampade 61, 62, 63 che emettono radiazioni ad onde corte. As illustrated in the attached figures, the method for adhering the fabric elements of the uppers, by means of a short-wave irradiation thermal process, is achieved by means of a last 1, which follows the model to be created, on which both stockings and of fabric 21, 22 and a silicone sheath 3 and all of the latter are engaged on a functional equipment 4, which is simultaneously suitable both for generating a vacuum and for introducing the wheel 1 into a container 5, internally equipped with a series of lamps 61, 62, 63 emitting short-wave radiation.

Le calze di tessuto 21, 22 impiegate nel presente processo descritto, sono costituite al loro interno di elementi termoplastici sensibili al calore, i quali fondendo a seguito di un riscaldamento, consento la coesione degli gli strati di tessuto contigui. The fabric stockings 21, 22 used in the present process described are internally constituted by heat-sensitive thermoplastic elements which, melting following heating, allow the contiguous fabric layers to cohere.

La prima fase della lavorazione prevede di infilare la detta prima calza di tessuto 21 sulla forma 1, avendo cura di modellarla manualmente, per fare in modo che aderisca intimamente sulla forma 1 e senza pieghe. The first stage of the process provides for placing said first fabric sock 21 on the last 1, taking care to model it manually, to ensure that it adheres intimately to the last 1 and without creases.

Successivamente, come illustrato nella figura 2, su tale detta prima calza di tessuto 21 potranno essere posizionati gli elementi di tipo strutturale, costituiti da una soletta 7, posizionata inferiormente rispetto alla forma 1 ed un eventuale puntale 8, posto anteriormente. Subsequently, as illustrated in Figure 2, the elements of a structural type can be positioned on said first fabric sock 21, consisting of an insole 7, positioned below the last 1 and a possible toe cap 8, positioned at the front.

Come illustrato nella figura 3, sulla forma 1, gi? dotata della prima calza di tessuto 21 e degli elementi strutturali 7, 8, verr? infilata una seconda calza di tessuto 22, la quale analogamente alla prima 21, dovr? essere infilata perfettamente sulla forma 1, facendo attenzione a non spostare in alcun modo gli elementi strutturali 7, 8 da inglobare, i quali solo a seguito del riscaldamento eseguito dalle lampade 61, 62, 63, a radiazione ad onde corte, rimarranno intimamente fissati all'interno della tomaia tessile realizzata. As illustrated in figure 3, on form 1, gi? equipped with the first fabric sock 21 and with the structural elements 7, 8, it will come? a second fabric stocking 22 is inserted, which similarly to the first 21, must be inserted perfectly on the form 1, taking care not to move in any way the structural elements 7, 8 to be incorporated, which only after heating by the short-wave radiation lamps 61, 62, 63, will remain intimately fixed to the inside of the textile upper made.

Prima del montaggio sull'attrezzatura funzionale 4 della forma 1, questa ultima sar? inserita all'interno di una guaina siliconica 3, che ha la funzione di proteggere le calze di tessuto 21, 22 durante la radiazione termica e contestualmente di mantenere gli elementi della tomaia 21, 7, 8, 22 calzati sulla forma 1, nella corretta e mutua posizione, cos? come assunta nella fase di assemblaggio. Before assembly on the functional equipment 4 of form 1, this last one will be? inserted inside a silicone sheath 3, which has the function of protecting the fabric hosiery 21, 22 during thermal radiation and at the same time of keeping the elements of the upper 21, 7, 8, 22 fitted on the last 1, in the correct and mutual position, what? as assumed in the assembly phase.

Come illustrato nella figura 4, l'attrezzatura funzionale 4 ? composta da un elemento di sostegno 41, idoneo sia ad impegnare superiormente un attuatore a traslazione lineare 42, atto ad azionare un tampone aspirante 43 e sia a vincolare inferiormente un manicotto 44, dotato di un braccio 441 che ha la funzione di vincolare la forma 1 in modo facilmente reversibile. As shown in figure 4 , the functional equipment 4 is composed of a support element 41, suitable both for engaging a linear translation actuator 42 at the top, suitable for operating a suction pad 43 and for constraining a sleeve 44 at the bottom, equipped with an arm 441 which has the function of constraining the shape 1 easily reversible.

Una volta vincolata la forma 1 al braccio 441, del manicotto 44, l'estremit? aperta 31 della guaina siliconica 3, verr? prima infilata all'interno del manicotto 44 e successivamente risvoltata sul bordo esterno di questo ultimo. Once the form 1 is constrained to the arm 441 of the sleeve 44, the end? open 31 of the silicone sheath 3, will it come? first inserted inside the sleeve 44 and subsequently turned up on the outer edge of the latter.

Nella figura 5, ? illustrata la condizione di azionamento dell'attuatore a traslazione lineare 42, che determina la corsa di discesa del tampone aspirante 43 all'interno del manicotto 44, con l'effetto di premere detto tampone aspirante 43, sull'estremit? aperta 31, della guaina siliconica 3, gi? risvoltata. In figure 5, ? illustrated is the operating condition of the linear translation actuator 42, which determines the descent stroke of the suction plug 43 inside the sleeve 44, with the effect of pressing said suction plug 43, on the end? open 31, of the silicone sheath 3, already? turned upside down.

Come illustrato ancora nella figura 5, il tampone aspirante 43 ? capace di creare il vuoto all'interno della guaina siliconica 3, grazie al fatto di essere collegato, a mezzo di un collettore 45, ad una macchina aspirante 9, ottenendo il risultato di far aderire intimamente la detta guaina siliconica 3 alla forma 1, in essa contenuta e contestualmente, di mantenere perfettamente aderenti fra loro, tutti gli elementi 21, 7, 8, 22 calzati sulla detta forma 1. As illustrated again in FIG. 5, the vacuum pad 43 is capable of creating a vacuum inside the silicone sheath 3, thanks to the fact that it is connected, by means of a manifold 45, to a suction machine 9, obtaining the result of making said silicone sheath 3 adhere intimately to the mold 1, in contained therein and contextually, to keep all the elements 21, 7, 8, 22 fitted on said last 1 perfectly adherent to each other.

Come illustrato nella figura 6, la fase successiva del processo prevede l'introduzione della forma 1 all'interno del contenitore 5 dotato delle lampade radianti 61, 62, 63, che provvederanno con il loro apporto termico, a riscaldare le calze di tessuto 21, 22, interne alla guaina siliconica 3, combinandole fino all'ottenimento di un corpo unico. As shown in figure 6, the next phase of the process provides for the introduction of the form 1 inside the container 5 equipped with the radiant lamps 61, 62, 63, which will provide, with their heat input, to heat the fabric socks 21, 22, inside the silicone sheath 3, combining them until a single body is obtained.

La radiazione termica sviluppata nel contenitore 5 deve garantire un riscaldamento uniforme delle calze di tessuto 21, 22 assemblate sulla forma 1 e per raggiungere tale obbiettivo, il calore radiante viene distribuito all'interno del contenitore 5, mediante la realizzazione di tre zone termiche, una superiore una laterale e quella inferiore. The thermal radiation developed in the container 5 must ensure uniform heating of the fabric hosiery 21, 22 assembled on the last 1 and to achieve this objective, the radiant heat is distributed inside the container 5, by creating three thermal zones, one upper, lateral and lower.

Pi? in dettaglio, la zona superiore ? irradiata da una prima lampada 61, di forma toroidale e posizionata nella parte superiore del contenitore 5, la zona centrale ? coperta da una batteria di lampade tubolari 62, circolarmente distribuite lungo le generatrici del contenitore 5 e la zona inferiore ? irradiata da un?ultima lampada 63, di forma toroidale e posta alla base del contenitore 5. Pi? in detail, the upper area? irradiated by a first lamp 61, having a toroidal shape and positioned in the upper part of the container 5, the central area? covered by a battery of tubular lamps 62, distributed circularly along the generator lines of the container 5 and the lower area ? irradiated by a last lamp 63, having a toroidal shape and placed at the base of the container 5.

Dopo il processo di radiazione termica, all'interno di almeno un contenitore 5, la forma 1 viene immersa in una vasca di raffreddamento 10, per essere sottoposta ad un abbassamento termico, idoneo a consolidare lo stato di coesione delle calze di tessuto 21, 22 unite fra loro dalla radiazione termica dalle lampade 61, 62, 63 ad onde corte. After the thermal radiation process, inside at least one container 5, the form 1 is immersed in a cooling tank 10, to be subjected to a thermal lowering, suitable for consolidating the state of cohesion of the fabric socks 21, 22 joined together by the thermal radiation from the short wave lamps 61, 62, 63.

Claims (9)

RIVENDICAZIONI 1. Metodo per la adesione di elementi in tessuto di tomaie, mediante processo termico ad irraggiamento di onde corte, comprendente una forma (1), che ricalca il prodotto da realizzare, delle calze di tessuto (21, 22), una guaina siliconica (3) ed una attrezzatura funzionale (4), questa ultima idonea sia a generare il vuoto all'interno della guaina siliconica (3) e sia ad introdurre la forma (1) all'interno di un contenitore (5), metodo caratterizzato dal fatto che, le calze di tessuto (21, 22), calzate sulla forma (1), sono poste all?interno di una guaina siliconica (3) e, successivamente introdotte in un contenitore (5) dotato di lampade (61, 62, 63) che emettono radiazioni ad onde corte.1. Method for the adhesion of fabric elements of uppers, by means of a short-wave irradiation thermal process, comprising a form (1), which follows the product to be made, fabric socks (21, 22), a silicone sheath ( 3) and functional equipment (4), the latter being suitable both for generating a vacuum inside the silicone sheath (3) and for introducing the shape (1) inside a container (5), a method characterized by the fact that the fabric stockings (21, 22), worn on the last (1), are placed inside a silicone sheath (3) and subsequently introduced into a container (5) equipped with lamps (61, 62, 63 ) that emit short-wave radiation. 2. Metodo per la adesione di elementi in tessuto di tomaie, mediante processo termico ad irraggiamento di onde corte, di cui a rivendicazione 1, caratterizzato dal fatto che, le calze di tessuto (21, 22) sono costituite al loro interno di elementi termoplastici sensibili al calore.2. Method for adhering fabric elements of uppers, by means of short-wave radiation thermal process, as per claim 1, characterized in that the fabric socks (21, 22) are internally made of thermoplastic elements sensitive to heat. 3. Metodo per la adesione di elementi in tessuto di tomaie, mediante processo termico ad irraggiamento di onde corte, di cui a rivendicazione 1 e 2, caratterizzato dal fatto di essere idoneo ad inglobare irreversibilmente, all'interno degli elementi di tessuto (21, 22) da unire termicamente, elementi strutturali (7, 8) di qualsiasi forma e materiale.3. Method for adhering fabric elements of uppers, by means of a short-wave irradiation thermal process, as claimed in claims 1 and 2, characterized in that it is suitable for irreversibly incorporating, within the fabric elements (21, 22) to be thermally joined, structural elements (7, 8) of any shape and material. 4. Metodo per la adesione di elementi in tessuto di tomaie, mediante processo termico ad irraggiamento di onde corte, di cui a rivendicazioni precedenti, caratterizzato dal fatto che, l'attrezzatura funzionale (4) ? dotata di un elemento aspirante (43) idoneo a creare il vuoto all'interno della guaina siliconica (3). 4. Method for adhering fabric elements of uppers, by means of a short-wave radiation thermal process, as claimed in the preceding claims, characterized in that the functional equipment (4) ? equipped with a suction element (43) suitable for creating a vacuum inside the silicone sheath (3). 5. Metodo per la adesione di elementi in tessuto di tomaie, mediante processo termico ad irraggiamento di onde corte, di cui a rivendicazioni precedenti, caratterizzato dal fatto che, l'elemento aspirante (43) ? collegato mediante un collettore (45) ad una macchina aspirante (9).5. Method for adhering fabric elements of uppers, by means of a short-wave irradiation thermal process, as claimed in the preceding claims, characterized in that the suction element (43) ? connected by means of a manifold (45) to a suction machine (9). 6. Metodo per la adesione di elementi in tessuto di tomaie, mediante processo termico ad irraggiamento di onde corte, di cui a rivendicazioni precedenti, caratterizzato dal fatto che, l'attrezzatura funzionale (4) ? dotata inferiormente di un manicotto (44), della forma idonea sia a far passare al suo interno l'estremit? aperta (31) della guaina siliconica (3) e sia a poter consentire a questa ultima (31) di poter essere risvoltata esternamente a detto manicotto (44).6. Method for adhering fabric elements of uppers, by means of a short-wave irradiation thermal process, as claimed in the preceding claims, characterized in that the functional equipment (4) ? equipped at the bottom with a sleeve (44), of the suitable shape both for passing inside the extremity? opening (31) of the silicone sheath (3) and is able to allow the latter (31) to be turned externally to said sleeve (44). 7. Metodo per la adesione di elementi in tessuto di tomaie, mediante processo termico ad irraggiamento di onde corte, di cui a rivendicazioni precedenti, caratterizzato dal fatto che, l'attrezzatura funzionale (4) ? dotata di un braccio (441) idoneo a vincolare in modo facilmente reversibile la forma (1).7. Method for adhering fabric elements of uppers, by means of a short-wave irradiation thermal process, as claimed in the preceding claims, characterized in that the functional equipment (4) ? equipped with an arm (441) suitable for constraining the shape (1) in an easily reversible way. 8. Metodo per la adesione di elementi in tessuto di tomaie, mediante processo termico ad irraggiamento di onde corte, di cui a rivendicazioni precedenti, caratterizzato dal fatto che il contenitore (5) ? dotato, al suo interno, di una prima lampada (61) di forma toroidale posta superiormente, di una batteria di lampade tubolari (62) circolarmente distribuite lungo le generatrici del detto contenitore (5) e, nella zona inferiore, di un?ultima lampada (63) di forma toroidale.8. Method for adhering fabric elements of uppers, by means of a short-wave radiation thermal process, as per the preceding claims, characterized in that the container (5) is ? internally equipped with a first toroidal-shaped lamp (61) placed on top, with a battery of tubular lamps (62) distributed circularly along the generatrix lines of said container (5) and, in the lower area, with a last lamp (63) of toroidal shape. 9. Metodo per la adesione di elementi in tessuto di tomaie, mediante processo termico ad irraggiamento di onde corte, di cui a rivendicazioni precedenti, caratterizzato dal fatto che, dopo il processo di radiazione termica, all'interno di almeno un contenitore (5), la forma (1) viene immersa in una vasca di raffreddamento (10), per essere sottoposta ad un abbassamento termico. 9. Method for adhering fabric elements of uppers, by means of a short-wave radiation thermal process, as claimed in the preceding claims, characterized in that, after the thermal radiation process, inside at least one container (5) , the wheel (1) is immersed in a cooling tank (10), to undergo a thermal lowering.
IT102020000027107A 2020-11-12 2020-11-12 "METHOD FOR THE ADHESION OF UPPER FABRIC ELEMENTS, BY MEANS OF THERMAL PROCESS WITH SHORT-WAVE RADIATION" IT202000027107A1 (en)

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EP3725927A1 (en) * 2016-11-09 2020-10-21 Nike Innovate C.V. An upper comprising a reflowed material present on the toe-box and/or the heel area
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