EP2039261A1 - Geformte Schuhsohle und Formgeräte - Google Patents

Geformte Schuhsohle und Formgeräte Download PDF

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Publication number
EP2039261A1
EP2039261A1 EP07425577A EP07425577A EP2039261A1 EP 2039261 A1 EP2039261 A1 EP 2039261A1 EP 07425577 A EP07425577 A EP 07425577A EP 07425577 A EP07425577 A EP 07425577A EP 2039261 A1 EP2039261 A1 EP 2039261A1
Authority
EP
European Patent Office
Prior art keywords
cavity
protuberance
opening
fact
series
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Withdrawn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
EP07425577A
Other languages
English (en)
French (fr)
Inventor
Ottorino Torresi
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.)
Gommar SpA
Original Assignee
Gommar 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 Gommar SpA filed Critical Gommar SpA
Priority to EP07425577A priority Critical patent/EP2039261A1/de
Publication of EP2039261A1 publication Critical patent/EP2039261A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/223—Profiled soles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/20—Pneumatic soles filled with a compressible fluid, e.g. air, gas
    • A43B13/203—Pneumatic soles filled with a compressible fluid, e.g. air, gas provided with a pump or valve

Definitions

  • the present patent application for industrial invention relates to a moulded footwear bottom provided with a series of concave protuberances that project from the tread, designed to guarantee excellent anti-slip and shock-absorbing properties due to elastic deformability under pressure.
  • the said protuberances are normally shaped as small cylinders with vertical axis or hemispherical domes.
  • a concave structure is preferably used in case of dome-shaped protuberances, being designed to be elastically deformed under pressure to ensure good anti-slip properties associated with anti-shock action, meaning the capability of absorbing the impact of the foot with the ground when walking or running.
  • the internal cavity of the said protuberances is obtained by providing a series of metal domes on the lid of the mould, which are interfaced at a short distance with corresponding cavities obtained on the bottom surface of the die.
  • a series of cavities is formed on the upper side of the moulded bottom, coinciding with the internal cavity of the body of the domes that project from the tread of the bottom.
  • the present invention has been devised to remedy the aforementioned drawbacks, the main purpose being to provide a moulded footwear bottom with a series of concave protuberances on the tread and a basically continuous uniform surface on the upper side.
  • the presence of the continuous surface provides a suitable surface for the glue used to fix the intermediate sole or the upper, if the cost, weight and volume caused by the interposition of the said intermediate sole between the bottom and the foot are eliminated.
  • the bottom of the invention is provided with a series of concave protuberances on the tread, whose internal cavity is characterised by an upward opening closed by at least two, preferably more than two, parallel coplanar pieces that form a single continuous surface with the upper surface of the bottom.
  • the series of pieces designed to close the opening are separated by thin slots that branch out radially from the centre of each concave body.
  • the thin slots coincide with the cavities left by the special cores used to obtain the concave body and basically closed by the said concave protuberances that project from the tread of the bottom of the invention.
  • Each core is composed of a protuberance that projects from the internal wall of the lid of the mould, with mushroom configuration, being formed of a vertical stem and an enlarged head, with shape and dimensions identical to the ones of the internal space of the concave body of each protuberance to be obtained on the tread of the bottom.
  • At least two, preferably more than two, vertical partitions branch out radially from the vertical stem, being designed to generate, during moulding, the slots that separate the pieces that surround and cover the back of the enlarged head.
  • the mushroom protuberances are an integral part of the lid of the mould, in such a way that when the mould is opened, the enlarged head is extracted from the moulding material in which it is temporarily drowned.
  • Extraction can be performed easily without excessive traction stress and without uncontrolled lacerations of the moulding material, due to the presence of the elastically deformable pieces that are first turned over and opened to allow the enlarged head to come out of its seat, and then stretched again and closed on the opening of the empty seat.
  • each concave body is closed by four coplanar pieces separated by four crosswise slots.
  • the bottom of the invention (1) is provided with a series of protuberances (3) on the tread (2), each protuberance (3) being provided with an internal cavity (4) with opening towards the upper surface (5) of the bottom (1).
  • each cavity (4) is closed by four parallel coplanar pieces (6) that continuously integrate with the surface (5) of the bottom (1).
  • the pieces (6) that close the opening of the same cavity (4) are separated by thin slots (7) that branch out radially from the central axis (Y-Y) of each cavity (4).
  • the mould used to make the bottom (1) of the invention is characterised by the fact that it is provided with a die (M) closed by a lid (C) that incorporates a series of special cores (10), one for each protuberance (2) to be obtained on the tread (2) of the bottom (1).
  • each special core (10) is composed of a mushroom protuberance, provided with a vertical stem (11) and an enlarged head (12), with shape and dimensions identical to the ones of the internal space (4) of the concave body of each protuberance (3) to be obtained on the tread (2) of the bottom (1).
  • each partition (13) is interrupted before it reaches the edge of the enlarged head (12) in order to reduce the length (L1) of each slot (7).
  • the reduction in length involves two advantages.
  • the first advantage is to increase the extension of the upper surface (5) that is used to support the foot and make the glue set.
  • the second advantage is to provide lateral support points for the pieces (6), which are connected for a short section with length equal to the distance between the edge of the head (12) and the end of the partitions (13).

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP07425577A 2007-09-20 2007-09-20 Geformte Schuhsohle und Formgeräte Withdrawn EP2039261A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07425577A EP2039261A1 (de) 2007-09-20 2007-09-20 Geformte Schuhsohle und Formgeräte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07425577A EP2039261A1 (de) 2007-09-20 2007-09-20 Geformte Schuhsohle und Formgeräte

Publications (1)

Publication Number Publication Date
EP2039261A1 true EP2039261A1 (de) 2009-03-25

Family

ID=39101752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07425577A Withdrawn EP2039261A1 (de) 2007-09-20 2007-09-20 Geformte Schuhsohle und Formgeräte

Country Status (1)

Country Link
EP (1) EP2039261A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US947651A (en) 1909-03-25 1910-01-25 Leon Schreiber Guard for sewing-machines.
GB947651A (en) * 1959-12-17 1964-01-22 Funck Herbert One-piece moulded soles for welted footwear
US4309376A (en) * 1977-11-07 1982-01-05 Asics Corporation Method for producing a shoe sole
EP0875163A2 (de) * 1997-04-11 1998-11-04 Onifares Elpidio Squadroni Selbstreinigende,Stossfeste Sohle für Schuhe mit Beluftung
EP1106094A1 (de) * 1999-12-03 2001-06-13 Vamas S.p.A. Verfahren zum Einspritzen von Harz auf halbfertige Lederprodukte

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US947651A (en) 1909-03-25 1910-01-25 Leon Schreiber Guard for sewing-machines.
GB947651A (en) * 1959-12-17 1964-01-22 Funck Herbert One-piece moulded soles for welted footwear
US4309376A (en) * 1977-11-07 1982-01-05 Asics Corporation Method for producing a shoe sole
EP0875163A2 (de) * 1997-04-11 1998-11-04 Onifares Elpidio Squadroni Selbstreinigende,Stossfeste Sohle für Schuhe mit Beluftung
EP1106094A1 (de) * 1999-12-03 2001-06-13 Vamas S.p.A. Verfahren zum Einspritzen von Harz auf halbfertige Lederprodukte

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