EP2591695A1 - Element for fastening devices in particular for sport footwear and relative production process - Google Patents

Element for fastening devices in particular for sport footwear and relative production process Download PDF

Info

Publication number
EP2591695A1
EP2591695A1 EP12188161.9A EP12188161A EP2591695A1 EP 2591695 A1 EP2591695 A1 EP 2591695A1 EP 12188161 A EP12188161 A EP 12188161A EP 2591695 A1 EP2591695 A1 EP 2591695A1
Authority
EP
European Patent Office
Prior art keywords
profile
plate
fastening devices
rib
shearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12188161.9A
Other languages
German (de)
English (en)
French (fr)
Inventor
Dino Giusti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GI DI MECCANICA SpA
Original Assignee
GI DI MECCANICA SpA
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 GI DI MECCANICA SpA filed Critical GI DI MECCANICA SpA
Publication of EP2591695A1 publication Critical patent/EP2591695A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00—Other fastenings specially adapted for shoes
    • A43C11/14—Clamp fastenings, e.g. strap fastenings; Clamp-buckle fastenings; Fastenings with toggle levers
    • A43C11/1406—Fastenings with toggle levers; Equipment therefor
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D8/00—Machines for cutting, ornamenting, marking or otherwise working up shoe part blanks
    • A43D8/02—Cutting-out

Definitions

  • the present invention refers to an element for fastening devices, in particular for sports footwear such as, for example, skiing or snowboarding shoes or boots, skates, climbing boots, cycling shoes, and to a process for manufacturing such element.
  • Lever-type fastening devices are widely used in footwear, particularly in the sport field. Strength and lightness are thus essential requirements to provide a functional product, which must obviously be combined with an attractive look and, not less important, a favourable final cost of the finished item.
  • the price in addition to the quality of the materials used, also depends on the type of processes that are carried out in making the various elements and on the reproducibility of the same.
  • the fastening devices most commonly used include a jointed buckle lever on a base fastened to one of the edges of the footwear to be fastened.
  • a rod On the lever arm is pivoted a rod that is in turn connected to engaging means, such as for example a hook, suitable to engage corresponding engaging means integral with the other edge of the footwear, generally consisting of a rack means (an example of such fastening means is shown in figure 8 ).
  • lever arm and the hook are obtained from an extruded element suitably subjected to milling to produce internal undercuts, to form holes for holding articulation means and for aesthetic shaping.
  • lever arm and hook have somewhat similar shapes, they are made from different profiles, generally extruded in a direction transversal to their longitudinal extension and subsequently trimmed by milling.
  • the fibres in the material of the starting element are orientated in a direction perpendicular to that of the loads to which the element is subjected when in actual use, which is definitely a disadvantage in terms of strength and durability of the fastening device.
  • the main objective of the present invention is to resolve the drawbacks of the prior art by devising elements of fastening devices, such as for example a lever arm or a hook, obtained from a single profile having a particular geometry and through an extrusion process that makes it possible to impart particular properties of strength and lightness to the same element.
  • fastening devices such as for example a lever arm or a hook
  • an important aim is to devise an element for fastening devices that can be obtained by shearing alone, without requiring costly and delicate milling operations.
  • a further objective of the present invention is to devise an element for fastening devices that can be obtained with a minimum production of waste, with resulting savings in terms of material used.
  • a further objective of the present invention consists of devising an element for fastening devices achieved with short production times, by increasing the capability of manufacturing the fastening devices.
  • An equally important objective is to devise an element for fastening devices that accomplishes the above purpose and objectives at competitive production costs, so that its use is advantageous also from the economic point of view, and that can be obtained with the usual well-known plants, machines and equipment.
  • the fastening devices generally used include a lever arm jointed to a base fastened to one of the edges of the footwear to be fastened.
  • a lever arm jointed to a base fastened to one of the edges of the footwear to be fastened.
  • engagement means such as for example a hook, suitable to engage corresponding engaging means integral with the other edge of the footwear, generally consisting of a rack means ( figure 8 ).
  • reference number 1 generally indicates a profile having characteristics suitable to achieve the above specified objectives; in particular, said profile 1 is extruded in a direction parallel to the longitudinal extension of the element that is to be produced and has a transversal cross section that resembles the Greek letter " ⁇ ".
  • Said profile includes a plate 1A having a longitudinal extension L greater than the transversal extension T, from which protrude, perpendicularly to one of the two faces of the plate 1A, a first and a second longitudinal ribs 1B, 1C that extend near and parallel to the side edges of the plate 1A, along the entire longitudinal extension L of the same plate.
  • Said plate 1A may have a substantially rectangular cross section, as shown in figure 2A , or, as an alternative, it may be suitably shaped, as shown solely by way of example in figures from 2B to 2F.
  • an engaging hook 10 it is sufficient to create a through opening 11 on a longitudinal portion of the plate 1A, in particular in the space included between said first and said second rib 1B, 1C, in order to create the space necessary for said hook 10 to interface with corresponding engaging means provided on the rack, and a plurality of holes 13, suitably arranged on said first and second rib 1B, 1C, to receive suitable articulation means.
  • lever arm 20 it is sufficient to create a through opening 21 on a longitudinal portion of the plate 1A, in the space included between said first and said second rib 1B, 1C, in order to create the space necessary to receive a rod, and to provide a plurality of holes 23, suitably arranged on said first and second rib 1B, 1C, to receive suitable articulation means.
  • milled cuts can be made on the side edges of the plate 1A and on the ribs 1B, 1C; moreover, the plate 1A can be bent.
  • a particularly advantageous procedure to obtain an element for fastening devices from a profile 1 having the geometry as described above includes a succession of cold-sheared slots as will be illustrated in greater detail later.
  • said procedure is known in the metal plate processing field as transfer-die process.
  • Figures 3A, 3B and 4 illustrate, in different views, the subsequent processing phases of the extruded profile 1 according to the geometry described above, to obtain an engaging hook 10; likewise, in figures 5A, 5B and 6 are shown, in different views, the subsequent steps of processing the extruded profile 1 according to the geometry described above, to obtain a lever arm 20.
  • the profile 1 is inserted into the front of the relative machine comprising the transfer dies, where it is subjected in a continuous process to a plurality of subsequent machining operations during its feeding movement, which takes place preferably in a horizontal direction indicated in the figures by the arrow D.
  • Said portion reaches a first work station where it undergoes a first processing step consisting of shearing by means of a relative die, preferably in a direction perpendicular to the plane defined by the rectangular portion 1A, in the direction indicated by the arrow A.
  • This step creates a central through opening 11 suitable to create the space necessary for the hook 10, in actual working conditions, to interface with the rack; in the case of the lever arm 20, the first shearing step creates a through opening 21 suitable to provide the central sheared opening for receiving the rod.
  • an aesthetic edge contour 12, 22 can be created on the unfinished element on the side edges of the rectangular portion 1A of the profile 1, the shape of which can be determined at will through a suitable shaping of the die, providing it is included within the side edges of the rectangular portion 1A projecting from the underlying ribs 1B, 1C of the profile 1.
  • the particular geometry of the profile 1 makes it possible to create said through opening 11, 21 substantially flush with the ribs 1B and 1C without using a bottom die or matrix, usually essential to prevent the profile from deforming during shearing; in fact, thanks to their position, said ribs 1B and 1C create by themselves the necessary backing support for shearing, as shown in figure 7 .
  • the portion that has undergone such operation is moved forward by translating the profile 1 horizontally in the direction indicated by the arrow D until it reaches a second work station; at the same time, due to the horizontal translation of the profile 1, a second portion of the profile 1 immediately adjacent to the first portion, and having substantially the same longitudinal extension, is inserted into the first shearing station, where it undergoes the first processing step described above.
  • Said second processing step consists of a shearing operation in a direction perpendicular to the direction A of the first shearing step and transversal to the extension L of the profile 1.
  • the direction of said second shearing is shown in the figures with the arrow B.
  • the portion that has undergone said second shearing is made to translate horizontally in the direction indicated by the arrow D until it reaches a subsequent processing station.
  • said translation also involves the translation of the second portion, which has just undergone the first shearing step, to the second processing station, as well as the insertion into the machine of a further portion of the still intact profile 1, which will be subjected to the first processing step.
  • the portion that was first inserted now reaches the third processing station, where any required bending of the portion according to known procedures and its final shearing with respect to the previous portion is carried out, in a direction parallel to the transversal extension T of the profile 1, to obtain a first finished piece forming the desired component.
  • the final shearing step and the bending step can be carried out at the same time or in sequence, in the order desired; the bending operation itself is optional and thus it can be omitted.
  • the subsequent portions will afterward be subjected to the bending phase and/or final shearing to form the component elements as the profile 1 is fed into the machine and the unfinished portions translate to the following processing station.
  • a preferential process for manufacturing an element 10, 20 for fastening devices starting from a profile 1 having the geometry as specified above includes, even in a different sequence, the steps of:
  • a shearing step can be carried out on the side edges of said plate 1A to obtain a first edge contour 12, 22 and, preferably during step b), a shearing operation can be carried out on said first and said second rib 1B, 1C, to obtain a second edge contour 14, 24.
  • the above process can also include a further step d) in which said element 10, 20, or the corresponding unfinished element, is bent to enable the same element to adapt to the curved surface of a footwear.
  • additional known steps can be provided.
  • Figure 9 illustrates, by way of example, a fastening device comprising elements of fastening devices 10, 20 made from a profile 1 having the geometry previously described and using the process disclosed above.
  • the present invention achieves the initially foreseen objectives and advantages: in effect, a particular geometry was thought out to apply to an extruded profile so as to be able to obtain, through a particular extrusion process, elements of fastening devices with different functions having the necessary strength and lightness; in particular, the elements of fastening devices that can be produced from the same profile geometry are a lever arm and an engaging hook.
  • said elements of fastening devices even if obtained from an extruded profile made from a very strong material such as Ergal®, can be manufactured without the use of costly and delicate milling operations; in fact, the thicknesses and dimensions of each portion of the starting profile have been suitably calibrated so as to make it possible to obtain said elements by shearing alone with a transfer die procedure, a process that is considerably faster than milling and has a moderate cost.
  • the trimming waste produced in the process will also be rather limited, thus making it possible to optimize the resources used, with consequent savings in terms of costs.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP12188161.9A 2011-11-11 2012-10-11 Element for fastening devices in particular for sport footwear and relative production process Withdrawn EP2591695A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000074A ITPN20110074A1 (it) 2011-11-11 2011-11-11 Elemento per dispositivi di serraggio in particolare per calzature sportive e relativo procedimento di produzione

Publications (1)

Publication Number Publication Date
EP2591695A1 true EP2591695A1 (en) 2013-05-15

Family

ID=45034090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12188161.9A Withdrawn EP2591695A1 (en) 2011-11-11 2012-10-11 Element for fastening devices in particular for sport footwear and relative production process

Country Status (2)

Country Link
EP (1) EP2591695A1 (it)
IT (1) ITPN20110074A1 (it)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVE20130056A1 (it) * 2013-10-21 2015-04-22 Am Teknostampi S P A Metodo di produzione dei componenti di un organo di chiusura a leva in calzature sportive.-
ITVE20130064A1 (it) * 2013-12-04 2015-06-05 Vega S R L Con Unico Socio Stampo per realizzare bracci di leva/cavallotti per calzature sportive a partire da un profilato estruso di alluminio provvisto di fori di estrusione.
IT201600125989A1 (it) * 2016-12-14 2018-06-14 Am Teknostampi S P A "base per dispositivi di serraggio per calzature sportive e relativo metodo di produzione”
IT201700055990A1 (it) * 2017-05-23 2018-11-23 Vega S R L Procedimento di realizzazione di una basetta

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0880912A2 (en) * 1997-05-29 1998-12-02 Bauer Italia S.p.A. A method for manufacturing a lever fastening device and a device produced by the method.
EP1714573A1 (fr) * 2005-04-21 2006-10-25 Lange International S.A. Accessoire métallique pour chaussure de sport
EP2147609A1 (en) * 2008-07-25 2010-01-27 Premec S.P.A. Method for manufacturing semi-finished products adapted to form levers, particularly for sports shoes, and levers obtained with the method
EP2238852A1 (en) * 2009-04-01 2010-10-13 O.L.M. Srl Closing hook for ski boot and other sporting footwear and manufacturing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0880912A2 (en) * 1997-05-29 1998-12-02 Bauer Italia S.p.A. A method for manufacturing a lever fastening device and a device produced by the method.
EP1714573A1 (fr) * 2005-04-21 2006-10-25 Lange International S.A. Accessoire métallique pour chaussure de sport
EP2147609A1 (en) * 2008-07-25 2010-01-27 Premec S.P.A. Method for manufacturing semi-finished products adapted to form levers, particularly for sports shoes, and levers obtained with the method
EP2238852A1 (en) * 2009-04-01 2010-10-13 O.L.M. Srl Closing hook for ski boot and other sporting footwear and manufacturing method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVE20130056A1 (it) * 2013-10-21 2015-04-22 Am Teknostampi S P A Metodo di produzione dei componenti di un organo di chiusura a leva in calzature sportive.-
ITVE20130064A1 (it) * 2013-12-04 2015-06-05 Vega S R L Con Unico Socio Stampo per realizzare bracci di leva/cavallotti per calzature sportive a partire da un profilato estruso di alluminio provvisto di fori di estrusione.
EP2881193A1 (en) * 2013-12-04 2015-06-10 VEGA S.r.l. Die for producing lever arms/clips for sports footwear starting from an aluminium extruded profile provided with extrusion holes
IT201600125989A1 (it) * 2016-12-14 2018-06-14 Am Teknostampi S P A "base per dispositivi di serraggio per calzature sportive e relativo metodo di produzione”
IT201700055990A1 (it) * 2017-05-23 2018-11-23 Vega S R L Procedimento di realizzazione di una basetta

Also Published As

Publication number Publication date
ITPN20110074A1 (it) 2013-05-12

Similar Documents

Publication Publication Date Title
EP2591695A1 (en) Element for fastening devices in particular for sport footwear and relative production process
EP2550888B1 (en) Manufacturing method of components of a lever for a closing hook of sporting footwear
JP5623407B2 (ja) 靴製造の統一型多目的位置決め固定具
CN104998969B (zh) 车辆连接板制造用连续模具及制造方法
EP2238852B1 (en) Method for manufacturing components of a closing device for sports footwear
US4115489A (en) Plasticizing and molding articles from polymer strip
US5441686A (en) Method of forming and assembling top shells onto the links of metallic watchbands
EP2147609B1 (en) Method for manufacturing semi-finished products adapted to form levers, particularly for sports shoes
KR101517671B1 (ko) 슬라이드 파스너용 엘리멘트 성형 장치
CH707511A2 (it) Metodo di produzione di una rastrelliera per un gancio di chiusura per calzature sportive.
CA1130070A (en) Process for preparing composite parts
US20160101583A1 (en) Mold and method for making heterogeneous composite outer shoe sole
CN101992236B (zh) 用于压弯机的压弯加工用工具
US7617586B2 (en) Method of manufacturing metal accessory for a sports shoe
KR100895446B1 (ko) 차량용 리클라이닝장치의 리클라이너샤프트 제조방법
ITPN20120044A1 (it) Procedimento per la realizzazione di componenti di dispositivi di serraggio a leva, in particolare per calzature sportive
KR102394272B1 (ko) 길이 조절이 가능한 지지대
US4259272A (en) Plastifying and molding articles from polymer strip
US20140068898A1 (en) Process for the fabrication of interconnecting elements for a slide fastner
EP2881193B1 (en) Die for producing lever arms/clips for sports footwear starting from an aluminium extruded profile provided with extrusion holes
EP3143895A1 (en) Method for producing lever arms/u-clips for aluminium fastening devices for sports footwear
CN105249609A (zh) 具有凹槽的注塑鞋中底及其制造方法
EP3326483B1 (en) Last for obtaining a shell of a boot provided with a rigid sole
CN113519985A (zh) 可拆卸式鞋楦及其制备方法
CN216453652U (zh) 一种鞋帮鞋底预热压合模具

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20130627

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

17Q First examination report despatched

Effective date: 20140820

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20170503