EP0219633B1 - Embout de chaussure en matière thermoplastique moulé par injection - Google Patents

Embout de chaussure en matière thermoplastique moulé par injection Download PDF

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Publication number
EP0219633B1
EP0219633B1 EP86111046A EP86111046A EP0219633B1 EP 0219633 B1 EP0219633 B1 EP 0219633B1 EP 86111046 A EP86111046 A EP 86111046A EP 86111046 A EP86111046 A EP 86111046A EP 0219633 B1 EP0219633 B1 EP 0219633B1
Authority
EP
European Patent Office
Prior art keywords
injection
shoe cap
plate
moulded
thermoplastic according
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
EP86111046A
Other languages
German (de)
English (en)
Other versions
EP0219633A1 (fr
Inventor
Gunter Dipl.-Ing. Lube
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of EP0219633A1 publication Critical patent/EP0219633A1/fr
Application granted granted Critical
Publication of EP0219633B1 publication Critical patent/EP0219633B1/fr
Expired 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
    • A43B23/086—Toe stiffeners made of impregnated fabrics, plastics or the like
    • A43B23/087—Toe stiffeners made of impregnated fabrics, plastics or the like made of plastics

Definitions

  • the invention relates to a molded shoe cap made of thermoplastic material for safety shoes consisting of a reinforced front wall with reinforced side walls adjoining on both sides, the upper edges of which are connected by a plate and the lower edges of which are provided with edge strips which in turn are connected via floor bolts or at least partially designed as a base plate can.
  • Safety shoes that are worn when working, mountaineering and ice hockey, for example, are equipped with a sturdy shoe to prevent injuries to the forefoot caused by sudden forces such as falling objects.
  • the high requirements, such as those set out in DIN 4843, have so far only been met by steel caps, which, however, are not very comfortable due to the great weight and high thermal conductivity of steel.
  • shoe cap of the presupposed type made of fiber-reinforced plastic EP-A-0 021 612
  • the object of the invention is to find a light, comfortable, stable shoe toe, which does not lead to injury to the forefoot in the case of heavy sudden stress, as prescribed in particular by the drop wedge test according to DIN 4843, and which is as simple to manufacture as possible.
  • the object is achieved in that the reinforcement of the end wall and the side walls in the edge region of the plate is formed upwards by a bulge raised above the plate, which at the same time represents a stiffening of the corner surrounding it.
  • the weight is up to half smaller, which makes it easier to wear even heavy work shoes.
  • the plastic shoe cap also increases the feeling of comfort in the foot, since heat or cold are only dissipated slowly. Finally, the cap can be manufactured in one operation, which brings economic advantages to this mass product.
  • the walls In order to create clear static conditions, the walls have a groove just above the floor, so that the floor slab or floor latch are connected in an articulated manner, which means that these thin components are only subjected to tensile loads according to the design.
  • the safety can be increased, in particular at normal case of sharp objects.
  • Elastic plastic which has a high energy absorption capacity, can preferably be introduced into the room.
  • a resilient construction that can be installed later can also be installed.
  • a shoe cap 1 is shown, in which the end wall 2 or side wall 3 is connected at the top by a plate 4 and at the bottom by an edge strip 5 to the bottom bar 6 or bottom plate 7.
  • the upper corner 8 is reinforced by a bead 9 which delimits a space 10 with the plate 4.
  • the radii shown should not fall below certain values (for example 10 mm).
  • a shoe cap 1 is shown, in which the end wall 2 or side wall 3 is connected at the top with a plate which, together with a bead 9 and the filling of the space 10, forms a flat supporting body 12.
  • the end wall 2 is reinforced and provided with a groove 11 below.
  • the edge strip 5 is reinforced at the front with a base plate 7.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (8)

1. Embout de chaussure en matière thermoplastique moulée par injection pour chaussures de sécurité, comportant une paroi frontale (2) renforcée et, des deux côtés, des parois latérales (3) renforcées adjacentes dont les bords supérieurs sont reliés par une plaque (4) et dont les bords inférieurs, pourvus de bandes de bordure (5), peuvent être à leur tour reliés par des traverses de fond (6), ou formés au moins partiellement par une plaque de fond (7), caractérisé en ce que la paroi frontale (2) et les parois latérales (3) renforcées sont formées dans la zone de bordure de la plaque (4), vers le haut, par un bourrelet (9) en relief par rapport à la plaque (4), et qui constitue en même temps un renfort pour l'angle (8) de pourtour.
2. Embout de chaussure en matière thermoplastique moulée par injection selon la revendication 1, caractérisé en ce que le bourrelet (9) se rétrécit en s'éloignant de la paroi frontale (2).
3. Embout de chaussure en matière thermoplastique moulée par injection selon les revendications 1 et 2, caractérisé en ce que la paroi frontale et/ou la paroi latérale (2, 3) ont une épaisseur comprise entre 4 et 8 mm.
4. Embout de chaussure en matière thermoplastique moulée par injection selon les revendications 1 à 3, caractérisé en ce que la paroi frontale et/ou la paroi latérale (2, 3) présentent une rainure (11) continue, dans la zone de transition vers la plaque de fond (7) ou les bandes de bordure (5).
5. Embout de chaussure en matière thermoplastique moulée par injection selon les revendications 1 à 4, caractérisé en ce qu'une matière plastique élastique se trouve dans le volume (10) situé au-dessus de la plaque (4), jusqu'à environ la hauteur du bourrelet (9).
6. Embout de chaussure en matière thermoplastique moulée par injection selon la revendication 5, caractérisé en ce que ce matériau présente de bonnes caractéristiques d'amortissement.
7. Embout de chaussure en matière thermoplastique moulée par injection selon les revendications 5 et 6, caractérisé en ce que l'on donne à ce matériau la forme d'une construction amortissant les chocs.
8. Embout de chaussure en matière thermoplastique moulée par injection selon les revendications 1 à 7, caractérisé en ce que l'embout de chaussure (1) est réalisé en un polycarbonate à base de bisphénol A, renforcé par fibres à raison de 5 à 30 % en poids, en particulier entre 8 et 15 % en poids, ainsi qu'en un agent de modification de la résilience.
EP86111046A 1985-08-22 1986-08-09 Embout de chaussure en matière thermoplastique moulé par injection Expired EP0219633B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3529999 1985-08-22
DE19853529999 DE3529999A1 (de) 1985-08-22 1985-08-22 Gespritzte schuhkappe aus thermoplastischem kunststoff

Publications (2)

Publication Number Publication Date
EP0219633A1 EP0219633A1 (fr) 1987-04-29
EP0219633B1 true EP0219633B1 (fr) 1989-09-20

Family

ID=6279086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86111046A Expired EP0219633B1 (fr) 1985-08-22 1986-08-09 Embout de chaussure en matière thermoplastique moulé par injection

Country Status (4)

Country Link
EP (1) EP0219633B1 (fr)
JP (1) JPS6247301A (fr)
DE (2) DE3529999A1 (fr)
ES (1) ES2001386A6 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4320312C2 (de) * 1992-07-02 1997-02-20 Ykk Corp Sicherheitsschutzkappe und Sicherheitsschuh
ES2081765B1 (es) * 1994-05-06 1996-11-01 Iturri S A Procedimiento de fabricacion de punteras de proteccion de los dedos del pie y puntera obtenida con tal procedimiento.
DE20018977U1 (de) 2000-11-08 2001-02-15 Kunststoffverarbeitung Wilhelm GmbH, 66981 Münchweiler Zehenkappe für Sicherheits-, Schutz- oder Berufsschuhe
DE10114560A1 (de) * 2001-03-24 2002-09-26 Uvex Arbeitsschutz Gmbh Schutzschuh, Sicherheitsschuh bzw. -stiefel
DE20106350U1 (de) * 2001-04-11 2002-08-14 Uvex Arbeitsschutz GmbH, 90766 Fürth Schutzschuh, Sicherheitsschuh bzw. -stiefel
DE20106351U1 (de) * 2001-04-11 2002-08-14 Uvex Arbeitsschutz GmbH, 90766 Fürth Schutzschuh, Sicherheitsschuh bzw. -stiefel
EP4297606B8 (fr) 2021-02-26 2024-09-04 Gössel, Thorsten Procédé de fabrication d'au moins une structure multicouche pour contreforts de chaussures.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB511324A (en) * 1938-07-09 1939-08-16 John Broughton An improved protector for the toes of boots and shoes
DE1229879B (de) * 1960-06-22 1966-12-01 Baudou Soc D Expl Des Ets Sicherheitsschuhwerk aus Kautschuk oder Kunststoff
CH501382A (de) * 1968-03-12 1971-01-15 Semperit Ag Leichter Betriebsschuh
DE1809766A1 (de) * 1968-11-19 1970-06-04 Ariston Gmbh Schuhzubehoer Schutzschild fuer Sicherheitsschuhwerk
EP0021612B1 (fr) * 1979-06-08 1983-11-09 Firth Cleveland Engineering Limited Coquille de protection des orteils
GB2071989B (en) * 1980-03-21 1984-11-28 Britton Ltd G B Protective toe caps for footwear
FR2525443B1 (fr) * 1982-04-23 1986-04-18 Agulhon Michel Embout pour chaussures de securite
EP0100181A1 (fr) * 1982-07-28 1984-02-08 Imperial Chemical Industries Plc Coquille protège-orteils

Also Published As

Publication number Publication date
JPS6247301A (ja) 1987-03-02
DE3529999A1 (de) 1987-02-26
ES2001386A6 (es) 1988-05-16
DE3665660D1 (en) 1989-10-26
EP0219633A1 (fr) 1987-04-29

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