EP0111256B1 - Inner sole for footwear - Google Patents

Inner sole for footwear Download PDF

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Publication number
EP0111256B1
EP0111256B1 EP19830112046 EP83112046A EP0111256B1 EP 0111256 B1 EP0111256 B1 EP 0111256B1 EP 19830112046 EP19830112046 EP 19830112046 EP 83112046 A EP83112046 A EP 83112046A EP 0111256 B1 EP0111256 B1 EP 0111256B1
Authority
EP
European Patent Office
Prior art keywords
inner sole
leaf spring
sole
footwear
slot
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.)
Expired
Application number
EP19830112046
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0111256A1 (en
Inventor
Giancarlo Tanzi
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.)
ASOLO SpA
Original Assignee
ASOLO 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 ASOLO SpA filed Critical ASOLO SpA
Publication of EP0111256A1 publication Critical patent/EP0111256A1/en
Application granted granted Critical
Publication of EP0111256B1 publication Critical patent/EP0111256B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/141—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form having an anatomical or curved form
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/39—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process with upset sewing ribs
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/41—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process combined with heel stiffener, toe stiffener, or shank stiffener

Definitions

  • This invention relates to an inner sole for footwear, and in particular to an inner sole which is suitable for use in a wide range of footwear types.
  • the shape of the inner sole is all- important in determining not only the fit of an item of footwear, but also its orthopaedic and functional characteristics.
  • DE-A-2 030 205 is a sole structure which incorporates a stiffener element, extending between the heel region and the arch area of the sole.
  • an aim of the present invention is to provide an accurately shaped inner sole which will maintain its shape for a considerable period of time, and which is also simple to secure into an appropriate item of footwear.
  • an object of the present invention is to provide an insole which can be used in a wide range of footwear types.
  • an inner sole which is pre-formed in a mould by a method of synthetic resin injection comprising an elongate leaf spring accommodated in a slot, provided in the under side of said inner sole and extending at least between the heel region and the arch area thereof, characterized in that said inner sole has at least in the upper surface of the sole region a groove of diminished thickness, spaced inwardly of the periphery of said inner sole and intended to receive stitches to hold the inner sole in position in an appropriate item of footwear such that the material of the stitches does not protrude above the level of said upper surface, and in that at least one end of said leaf spring is attached to the underside of said inner sole.
  • a preferred embodiment of the inner sole of the invention, as illustrated in the drawing, is pre-formed in a mould by a method of synthetic resin injection.
  • This method ensures production of durable g inner soles of consistant accurate shape. Moreover the shape of each inner sole is maintained for a long period of time.
  • the shape of the inner sole 1 is particularly important for the fit of the item of footwear, whether boot or shoe, and the orthopaedic and functional characteristics of the boot or shoe also depend on the shape of the inner sole 1.
  • a suitable material for the inner sole 1 has been found to be thermoplastic nylon No. 6, but, of course, other materials may be equally suitable.
  • the overall shape of the inner sole 1 includes predetermined areas of different thickness so as to guarantee differing degrees of pliability in different areas according to the foot region to be supported and the type of footwear - for example, walking shoes, sports shoes and orthopaedic shoes - require inner soles of different degrees of pliability.
  • the inner sole 1 is thicker in the central area and at the extreme edge, while a peripheral band of diminished thickness in the form of a groove 2 in the upper surface is provided.
  • This groove 2 is intended to receive stitches (not shown) which will secure the inner sole 1 in an appropriate item of footwear.
  • the material of the stitches will lie in the groove 2 and will not protrude above the level of the upper surface of the inner sole 1 so that no discomfort is likely to be caused to a wearer's foot.
  • it is faster and easier to glue inner soles into position in items of footwear rather than to stitch same in position it is preferable to secure same by stitching as this leads to a much more durable product.
  • a special peripheral band of diminished thickness (such as the groove 2) for reception of stitches facilitates production of good quality, long-lasting items of footwear.
  • the thin peripheral band guides the stitching needle and facilitates piercing of the inner sole 1 by the needle.
  • inner sole 1 an elongate steel leaf spring 3 of appropriate thickness and springiness is accommodated in a slot 6 in the underside of the inner sole 1.
  • This slot 6 extends between the region of the heel and the arch area of the inner sole 1.
  • the spring 3 is attached in the slot 6 at each end by means of rivets 4, 5 extending through the inner sole 1 and the spring 3.
  • This inner sole 1 is substantially rigid and is suitable for certain types of footwear such as skating boots, cycling shoes etc., in which the sole of the boot or shoe itself is relatively stiff. In other words provision of a spring 6 makes the inner sole 1 sturdier and also more resilient.
  • the spring may be attached in the slot only at the end disposed in the heel region, the free end in the arch region being capable of sliding slightly within the slot, thereby endowing the inner sole with a particular springiness required in certain shoes and boots.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP19830112046 1982-12-09 1983-12-01 Inner sole for footwear Expired EP0111256B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT5934282U 1982-12-09
IT5934282U IT8259342V0 (it) 1982-12-09 1982-12-09 Sottopiede preformato in matrice ad iniezione di resina sintetica, con particolari caratteristiche ortopediche e funzionali, diverse flessibilita' e cucitura facilitata.

Publications (2)

Publication Number Publication Date
EP0111256A1 EP0111256A1 (en) 1984-06-20
EP0111256B1 true EP0111256B1 (en) 1988-04-20

Family

ID=11289071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830112046 Expired EP0111256B1 (en) 1982-12-09 1983-12-01 Inner sole for footwear

Country Status (4)

Country Link
EP (1) EP0111256B1 (it)
DE (1) DE3376289D1 (it)
GB (1) GB2131277A (it)
IT (1) IT8259342V0 (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2011870A1 (en) * 1989-03-17 1990-09-17 Vincenc Boltnar Lasting insole for welted shoes and a form for production the same
GB2230935A (en) * 1989-04-25 1990-11-07 Calzaturificio Zamberlan S R L Arch supporting insoles
GB2284534B (en) * 1993-12-01 1998-04-29 Chamberlain Components Ltd Method of and component for footwear manufacture

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB296743A (en) * 1927-06-07 1928-09-07 United Shoe Machinery Corp Improvements in or relating to methods of and machines for inserting staples
DE636974C (de) * 1935-01-16 1936-10-22 United Shoe Machinery Corp Verfahren zur Herstellung von Brandsohlen-Laufsohlen-Paaren
FR1124213A (fr) * 1955-03-31 1956-10-08 Chaussures Chateauvert Contrefort de première
AT219458B (de) * 1956-03-14 1962-01-25 Bally Schuhfabriken A G Verfahren zur Herstellung einer Brandsohle für Schuhwerk
GB939942A (en) * 1958-12-20 1963-10-16 Carlo Barth Shoe shank reinforcing device
US3244177A (en) * 1962-06-13 1966-04-05 William M Scholl Shoe inlay
FR2044841A5 (it) * 1969-02-11 1971-02-26 Samouelian Nechan
DE2030205A1 (de) * 1970-06-19 1971-12-23 Romen, Bruno, 6242 Kronberg Brandsohle
NL7410758A (nl) * 1973-12-14 1975-06-17 Meier Ernst Werkwijze voor het vervaardigen van een schoen, een bij deze werkwijze te gebruiken inzetstuk en leest.
IT1044063B (it) * 1975-09-19 1980-03-20 Red Wing Shoe Co Scarpa da roccia
GB1565396A (en) * 1978-01-13 1980-04-23 Wright & Co Ltd F Stitching of footwear uppers to moulded bottoms
DE7803394U1 (it) * 1978-02-06 1978-06-29 Linnemann, Friedrich, 4019 Monheim
GB1600899A (en) * 1978-03-17 1981-10-21 Clarks Ltd Footwear
DE2908019C3 (de) * 1979-03-01 1986-07-31 Sigle, Rolf, 7014 Kornwestheim Fußstützende Sohle
DE2939731C2 (de) * 1979-10-01 1985-12-19 Walter Dr.med. 6600 Saarbrücken Hort Sportschuh, insbesondere Laufschuh

Also Published As

Publication number Publication date
GB2131277A (en) 1984-06-20
EP0111256A1 (en) 1984-06-20
IT8259342V0 (it) 1982-12-09
GB8314472D0 (en) 1983-06-29
DE3376289D1 (en) 1988-05-26

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