EP0250634A1 - Gleitschutzüberschuh mit Kopfnägeln - Google Patents

Gleitschutzüberschuh mit Kopfnägeln Download PDF

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Publication number
EP0250634A1
EP0250634A1 EP86109079A EP86109079A EP0250634A1 EP 0250634 A1 EP0250634 A1 EP 0250634A1 EP 86109079 A EP86109079 A EP 86109079A EP 86109079 A EP86109079 A EP 86109079A EP 0250634 A1 EP0250634 A1 EP 0250634A1
Authority
EP
European Patent Office
Prior art keywords
undershoe
sole
hobnailed
featured
protrusions
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Withdrawn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
EP86109079A
Other languages
English (en)
French (fr)
Inventor
Giovanni Salutati
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.)
PROTECTOR SAL Sas di Giovanni Salutati
Original Assignee
PROTECTOR SAL Sas di Giovanni Salutati
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 PROTECTOR SAL Sas di Giovanni Salutati filed Critical PROTECTOR SAL Sas di Giovanni Salutati
Priority to EP86109079A priority Critical patent/EP0250634A1/de
Publication of EP0250634A1 publication Critical patent/EP0250634A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C15/00—Non-skid devices or attachments
    • A43C15/06—Ice-gripping devices or attachments, e.g. ice-spurs, ice-cleats, ice-creepers, crampons; Climbing devices or attachments, e.g. mountain climbing irons
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/18—Attachable overshoes for sporting purposes

Definitions

  • This invention concerns a nonskid hobnailed undershoe which can be worn under usually worn shoes directly and quickly.
  • the hobnailed.undershoe concerned allows to avoid skidding when one walks on icy and/or snowy surfaces with no need of wearing special shoes or boots.
  • An essential feature of this invention is that the undershoe is a sheath of elastic material, which has an open upper side into which the usual shoe wearing foot can be inserted and a lower side that comprises a sole of resilient, semiflexible material that, on its turn, comprises a range of nail-shaped metal inserts, the points of which protrude out of the sole of resilient material and are turned toward the outside of the sole.
  • a further main feature of the invention is that the sole of resilient material is shaped with grooves alternated with protrusions.
  • the grooves and the protrusions are parallel, have a rectangular section parallelepiped shape and are arranged transversally to the main dimension (length) of the undershoe.
  • the metal nails which are preferably made of stainless steel or other hard, stainless metal alloys, are favourably inserted into the protrusions. It is obvious to any expert in this line that many other shapes and arrangements of protrusions and grooves in the stiff side of the sole of the undershoe concerned are possible, such as a range of rolls or square-based parallelepipeds, evenly arranged on the sole surface. In any case, the ratio between the contact surfaces of the protruding parts to the ground and the total surface of the undershoe sole shall range from 40 % and 70 %. Lower values of protruding surface are unfavourable and make walking uncomfortable, while higher values reduce the grip of protrusions on snow.
  • the quantity of metal nails inserted into the protruding parts of sole is typically 20 to 60 nails in total per .sole.
  • the points of said nails protrude from the semirigid side of sole for an height O.1 to 2 mm; in the favourite model the value of said protrusion is 0.2 to 0.6 mm.
  • natural and/or synthetic polymeric materials of elastomeric type such as natural rubber, SBR, nitrile,.chloroprene, butyl, ethylene-propylene, silicone, fluoride, polyurethan elastomers, both as vulcanizable moldable masses and as latexes.
  • thermoplastic type such as polyesters, polyamides, polycarbonates, polyacetales, polyolefines, polyacrylics, polyurethanes, ABS, PVC proved particularly suitable.
  • the above said materials can be compounded with their proper additives, plasticizers, pigments commonly used in the rubber industry and compatible with the chosen material, in order to get the rigidity-, resiliency- and abrasion resistance - values required for the specific case.
  • Molding of this undershoe according to this invention can be done with the usual molding or casting methods used for the single materials. Molding or casting are performed as a two-stage process: during the first stage the sole with metal inserts is molded, during the second stage the sheath is molded and the sole is used as an insert. This following-insert two-stage process makes the finished piece particularly resistant, because there is no possibility of unsticking of the sole from the sheath.
  • the hobnailed undershoe of th shown type is a sheath of vulcanized natural rubber into which, before vulcanizing, an insert or molded ABS polymer having a range of rectangular section parallelepiped protrusions 2 with inserted steel nails 1 was inserted.
  • the parallelepiped protrusions 2 are spaced by grooves 3 so that the lower surface of the protruding part amounts to 60 % of the total sole surface.
  • the side edge of the sheath is 1 to 3 cm. high, while the front side is shaped to enclose shoe- tip for a length of 2 to 4 cm. and the back side is 3 to 6 cm. high. It is clear that the undershoe under this invention can be made in different shapes suitable to be easily worn both on standard shoes and on climbing-or ski-boots, both for men and for women.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP86109079A 1986-07-03 1986-07-03 Gleitschutzüberschuh mit Kopfnägeln Withdrawn EP0250634A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP86109079A EP0250634A1 (de) 1986-07-03 1986-07-03 Gleitschutzüberschuh mit Kopfnägeln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86109079A EP0250634A1 (de) 1986-07-03 1986-07-03 Gleitschutzüberschuh mit Kopfnägeln

Publications (1)

Publication Number Publication Date
EP0250634A1 true EP0250634A1 (de) 1988-01-07

Family

ID=8195238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109079A Withdrawn EP0250634A1 (de) 1986-07-03 1986-07-03 Gleitschutzüberschuh mit Kopfnägeln

Country Status (1)

Country Link
EP (1) EP0250634A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4985340A (en) * 1988-06-01 1991-01-15 Minnesota Mining And Manufacturing Company Energy curable compositions: two component curing agents
FR2699375A1 (fr) * 1992-12-21 1994-06-24 Nadaud Jean Semelle amovible anti-dérapante.
FR2709929A1 (fr) * 1993-09-13 1995-03-24 Inova France Semelle antidérapante.
US5469644A (en) * 1992-06-09 1995-11-28 Vidler; James W. Footwear accessory
EP1181872A2 (de) * 2000-08-25 2002-02-27 Sure Foot Corporation Rutschhemmender Überschuh und Dornmontage
EP2465374A1 (de) * 2010-12-16 2012-06-20 Urban Art, S.L. Schuhbedeckung mit Nägeln

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1841710A (en) * 1930-12-06 1932-01-19 Edward C Byrne Overshoe for use in sports
DE1936861A1 (de) * 1969-07-19 1971-01-28 Otto Enser Schornsteinhaube
US3643352A (en) * 1970-10-02 1972-02-22 Raymond K S Adair Overshoe for golf
FR2423173A1 (fr) * 1978-04-19 1979-11-16 Michel Martial Semelle permettant de se deplacer sur un sol glissant
US4246707A (en) * 1980-03-27 1981-01-27 Frank Pedersen Convertible overshoes
US4434565A (en) * 1980-03-27 1984-03-06 Haley Robert D Non-slip overshoe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1841710A (en) * 1930-12-06 1932-01-19 Edward C Byrne Overshoe for use in sports
DE1936861A1 (de) * 1969-07-19 1971-01-28 Otto Enser Schornsteinhaube
US3643352A (en) * 1970-10-02 1972-02-22 Raymond K S Adair Overshoe for golf
FR2423173A1 (fr) * 1978-04-19 1979-11-16 Michel Martial Semelle permettant de se deplacer sur un sol glissant
US4246707A (en) * 1980-03-27 1981-01-27 Frank Pedersen Convertible overshoes
US4434565A (en) * 1980-03-27 1984-03-06 Haley Robert D Non-slip overshoe

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4985340A (en) * 1988-06-01 1991-01-15 Minnesota Mining And Manufacturing Company Energy curable compositions: two component curing agents
US5469644A (en) * 1992-06-09 1995-11-28 Vidler; James W. Footwear accessory
FR2699375A1 (fr) * 1992-12-21 1994-06-24 Nadaud Jean Semelle amovible anti-dérapante.
FR2709929A1 (fr) * 1993-09-13 1995-03-24 Inova France Semelle antidérapante.
EP1181872A2 (de) * 2000-08-25 2002-02-27 Sure Foot Corporation Rutschhemmender Überschuh und Dornmontage
EP1181872A3 (de) * 2000-08-25 2004-07-07 Sure Foot Corporation Rutschhemmender Überschuh und Dornmontage
US6836977B2 (en) 2000-08-25 2005-01-04 Larson Jon C Anti-slip overshoe
USRE42965E1 (en) 2000-08-25 2011-11-29 Sure Foot Corporation Anti-slip overshoe
USRE44193E1 (en) 2000-08-25 2013-05-07 Sure Foot Corporation Replaceable spikes for anti-slip overshoe
EP2465374A1 (de) * 2010-12-16 2012-06-20 Urban Art, S.L. Schuhbedeckung mit Nägeln

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

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Effective date: 19880908

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Inventor name: SALUTATI, GIOVANNI