EP0434918A1 - Chaussure en matière plastique et méthode pour sa fabrication - Google Patents

Chaussure en matière plastique et méthode pour sa fabrication Download PDF

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Publication number
EP0434918A1
EP0434918A1 EP90119690A EP90119690A EP0434918A1 EP 0434918 A1 EP0434918 A1 EP 0434918A1 EP 90119690 A EP90119690 A EP 90119690A EP 90119690 A EP90119690 A EP 90119690A EP 0434918 A1 EP0434918 A1 EP 0434918A1
Authority
EP
European Patent Office
Prior art keywords
shoe
plastic
area
steel cap
steel
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.)
Granted
Application number
EP90119690A
Other languages
German (de)
English (en)
Other versions
EP0434918B1 (fr
Inventor
Herber Karlheinz
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.)
ALSA GmbH
Original Assignee
ALSA GmbH
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 ALSA GmbH filed Critical ALSA GmbH
Priority to AT90119690T priority Critical patent/ATE93689T1/de
Publication of EP0434918A1 publication Critical patent/EP0434918A1/fr
Application granted granted Critical
Publication of EP0434918B1 publication Critical patent/EP0434918B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/08—Heel stiffeners; Toe stiffeners
    • A43B23/081—Toe stiffeners
    • A43B23/082—Toe stiffeners made of metal
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0054—Footwear characterised by the material provided with magnets, magnetic parts or magnetic substances

Definitions

  • the invention relates to a plastic shoe made of a foam-foaming plastic, preferably polyurethane, which has a steel toe in its toe area. Furthermore, the invention relates to a method for producing such a plastic shoe, in which the plastic is inserted into an open lower mold part, then a last is used as the mold core and then an upper mold part is placed on the lower mold part.
  • Shoes made of polyurethane are worn in butchers' wet areas, for example, because, unlike leather shoes, they are very easy to clean and disinfect.
  • a large number of plastic shoe of the above type is known under the name "Jollys”. This shoe is worn in the leisure area, especially in gardening, but also in operating rooms of hospitals and in the commercial sector.
  • the invention has for its object to design a plastic shoe of the type mentioned in such a way that its steel toe is completely surrounded on its inside with cushioning material and is anchored as firmly as possible in the toe. Furthermore, a method for producing such a shoe is to be developed.
  • the first-mentioned object is achieved according to the invention in that the steel toe has air-absorbing padding in its upper area and is embedded in the plastic of the shoe in the remaining area.
  • the steel toe of the plastic shoe is reliably anchored in the plastic of the shoe in the lower region due to the complete plastic enclosure.
  • the padding is on the inside, so that the foot cannot come directly against the steel cap anywhere.
  • the padding absorbs air that is displaced by the foaming plastic in the toe area and partially directs it from the top. Therefore, air bubbles cannot prevent the inside of the steel cap from being foamed with plastic foam and thus prevent it from being reliably anchored.
  • the padding therefore not only has the function of cushioning the inside of the steel toe in the finished shoe, but rather serves to exclude air pockets in the plastic during manufacture.
  • the second task namely the creation of a method for producing the plastic shoe, is achieved according to the invention in that a steel cap is applied to the tip of the last with a small distance from the last surface, which has an air-absorbing padding exclusively in its upper region.
  • the steel toe cap only needs to be placed on the last by hand if magnets are attached to the last as a spacer for the steel toe. These magnets are able to hold the steel cap sufficiently firmly in the mold when it is being foamed so that it does not slip.
  • the steel toe is embedded particularly firmly in the plastic of the shoe if a steel toe is used which projects with a flanged area into the sole of the plastic shoe.
  • the required spacers do not lead to places where there is no plastic foam or padding material if the spacers are arranged exclusively in the area of the padding and the flanged area.
  • a shaft 1 is formed in one piece with a shoe bottom 2.
  • a steel cap 3 is arranged in the tip area of the plastic shoe. In its upper area, this delimits the interior of the shoe with an internal padding 4 made of an air-absorbing cushioning material.
  • the steel cap 3 is embedded in the plastic foam of the upper 1 and the shoe bottom 2.
  • the steel toe 3 has a horizontally extending flange 5, which additionally improves the anchoring of the steel toe 3.
  • a removable footbed 6 made of cork latex.
  • FIG. 2 shows a front area of a horizontally oriented lower mold part 7, which is covered at the top by an upper mold part 8.
  • a strip 9 as the mold core.
  • This has spacers 10, 11, which are directed upwards at their tips, each of which is a magnet.
  • Further spacers 12 in the form of downward-pointing pins are provided on the underside of the strip 9. These spacers 10, 11, 12 position the steel cap 3 on the last 9, so that it rests in its upper region with the padding 4 against the last 9, but is otherwise everywhere at a short distance from it.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
EP90119690A 1989-11-18 1990-10-15 Chaussure en matière plastique et méthode pour sa fabrication Expired - Lifetime EP0434918B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90119690T ATE93689T1 (de) 1989-11-18 1990-10-15 Kunststoffschuh sowie verfahren zu seiner herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3938403 1989-11-18
DE3938403A DE3938403A1 (de) 1989-11-18 1989-11-18 Kunststoffschuh sowie verfahren zu seiner herstellung

Publications (2)

Publication Number Publication Date
EP0434918A1 true EP0434918A1 (fr) 1991-07-03
EP0434918B1 EP0434918B1 (fr) 1993-09-01

Family

ID=6393810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119690A Expired - Lifetime EP0434918B1 (fr) 1989-11-18 1990-10-15 Chaussure en matière plastique et méthode pour sa fabrication

Country Status (6)

Country Link
US (1) US5163198A (fr)
EP (1) EP0434918B1 (fr)
AT (1) ATE93689T1 (fr)
DE (2) DE3938403A1 (fr)
DK (1) DK0434918T3 (fr)
ES (1) ES2043214T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7603796B2 (en) * 2001-10-15 2009-10-20 Rocky Brands Wholesale, LLC Boot with oversized toe box for thermal insulation
DE102007011727A1 (de) * 2007-03-10 2008-09-11 Uvex Arbeitsschutz Gmbh Schuh, insbesondere Arbeitsschutzschuh
US20090145006A1 (en) * 2007-12-11 2009-06-11 Baffin Inc. Safety footwear
US8146268B2 (en) * 2009-01-28 2012-04-03 Sears Brands, Llc Shoe having an air cushioning system
EP2684476A1 (fr) 2012-07-13 2014-01-15 Bekina NV Chaussure de sécurité avec couche de protection
KR101343107B1 (ko) * 2013-08-07 2013-12-20 화인케미칼 주식회사 발포형 경량 안전화

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034431A (en) * 1973-10-03 1977-07-12 Tatsuo Fukuoka Method for manufacturing a footwear
AT356541B (de) * 1975-08-18 1980-05-12 Dynafit Gmbh Skischuh
EP0015862A1 (fr) * 1979-03-06 1980-09-17 Roger Blanc Chaussure de ski
EP0233957A1 (fr) * 1986-01-30 1987-09-02 Robert C. Limbach Procédé d'ajustement de chaussures de ski

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1685392A1 (de) * 1951-01-28 1971-11-25 Desma Werke Gmbh Spritzgiessvorrichtung zur Herstellung von Schuhwerk mit Stahlkappe
US2740209A (en) * 1954-01-28 1956-04-03 Endicott Johnson Corp Improved liner for safety toes
US2756519A (en) * 1955-03-11 1956-07-31 Hill Bros Co Box toe for safety shoes
US3165841A (en) * 1962-03-19 1965-01-19 Ro Search Inc Shoe sole having portions of different elasticity in combination with safety boot
DE1685262A1 (de) * 1966-12-23 1971-03-18 Desma Werke Gmbh Verfahren und Vorrichtung zur Herstellung von Schuhwerk mit Stahlsohle und/oder Stahlkappe sowie Schuhwerk
US3593438A (en) * 1969-07-30 1971-07-20 Bata Shoe Co Spread-resistant metal toe for safety shoes
US4011667A (en) * 1976-06-28 1977-03-15 Safety Box Toe Company Safety shoes
US4257177A (en) * 1978-12-21 1981-03-24 Management Operations Limited Safety footwear
NL7903058A (nl) * 1979-04-19 1980-10-21 Vredestein Nv Werkwijze voor het vervaardigen van schoeisel uit schuimpolyurethaan of een ander flexibel kunststof- schuimmateriaal, in het bijzonder laars en schoeisel in het bijzonder laars, vervaardigd volgens deze werkwijze.
DE2935959A1 (de) * 1979-09-06 1981-04-02 Esjot-Werk Schiermeister U. Junker, 4763 Ense Stahlkappe mit sohlenseitigem boerdelrand fuer sicherheitsschuhwerk
US4342159A (en) * 1980-07-21 1982-08-03 Interco Incorporated Metatarsal guard safety shoe
US4412393A (en) * 1981-07-10 1983-11-01 Ballet Makers, Inc. Ballet toe shoe and process of manufacture thereof
US4566197A (en) * 1983-08-01 1986-01-28 Interco Incorporated Shoe construction
JPH0332241Y2 (fr) * 1986-07-10 1991-07-09
DE3626710C1 (de) * 1986-08-07 1987-10-08 Schiermeister & Junker Vorrichtung zur Iagerichtigen Anordnung einer Stahlkappe auf einem Schuhleisten

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034431A (en) * 1973-10-03 1977-07-12 Tatsuo Fukuoka Method for manufacturing a footwear
AT356541B (de) * 1975-08-18 1980-05-12 Dynafit Gmbh Skischuh
EP0015862A1 (fr) * 1979-03-06 1980-09-17 Roger Blanc Chaussure de ski
EP0233957A1 (fr) * 1986-01-30 1987-09-02 Robert C. Limbach Procédé d'ajustement de chaussures de ski

Also Published As

Publication number Publication date
ATE93689T1 (de) 1993-09-15
DE59002559D1 (de) 1993-10-07
EP0434918B1 (fr) 1993-09-01
US5163198A (en) 1992-11-17
DE3938403A1 (de) 1991-05-23
DK0434918T3 (da) 1993-11-01
ES2043214T3 (es) 1993-12-16

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