EP0030839A1 - Botte de sécurité - Google Patents

Botte de sécurité Download PDF

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Publication number
EP0030839A1
EP0030839A1 EP80304442A EP80304442A EP0030839A1 EP 0030839 A1 EP0030839 A1 EP 0030839A1 EP 80304442 A EP80304442 A EP 80304442A EP 80304442 A EP80304442 A EP 80304442A EP 0030839 A1 EP0030839 A1 EP 0030839A1
Authority
EP
European Patent Office
Prior art keywords
boot
guard
toe
metatarsal
sole
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
EP80304442A
Other languages
German (de)
English (en)
Other versions
EP0030839B1 (fr
Inventor
Hans Rudi Scherz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT80304442T priority Critical patent/ATE8730T1/de
Publication of EP0030839A1 publication Critical patent/EP0030839A1/fr
Application granted granted Critical
Publication of EP0030839B1 publication Critical patent/EP0030839B1/fr
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
    • A43B7/32—Footwear with health or hygienic arrangements with shock-absorbing means

Definitions

  • the present invention relates to boots, and more particularly, to boots used in the mining industry.
  • Boots used by miners are traditionally made of rubber and are heavily reinforced by hard rubber caps and ribs. An average pair of boots presently used in the mining industry weighs approximately 8 lbs.
  • Boots for underground mining are usually supplied in two types, that is, a first type of a relatively light rubber material having a hard rubber toe cap, and relatively form-fitting ankle and calf portions with the front of the boot being partially laced from the top.
  • the other type of boot includes a heavier rubber on canvas construction having a hard rubber toe cap and a hard rubber metatarsal guard as well as thick rubber ribs over the guard and the toe cap.
  • the lighter boot is comfortable and of thin flexible rubber, but can be utilized only by supervisory personnel underground, engineers and surveyors, trolley and truck operators, and underground maintenance personnel. They are unsafe and impractical to wear on any mining job that requires heavy manual work.
  • Another aim of the present invention is to provide a one-piece molded boot which is simpler in construction and requires fewer manual steps and thus is less costly to produce.
  • a construction in accordance with the present invention comprises a safety waterproof boot of molded plastics material having an integral sole and upper, the upper including a toe portion and a metatarsal portion, apcotective plate provided in the sole portion and extending the width and length thereof and allowing for longitudinal flexing of the sole, a box-shaped rigid toe guard provided in the toe portion, a rigid arched metatarsal guard member extending laterally and having side portions connected to the sole plate, the trailing edge of the toe guard being spaced inwardly relative to the leading edge of the metatarsal guard and the molded plastics material extending between the metatarsal guard and the toe guard having a flexible hinge portion in the form of a reverse fold such that the trailing edge of the toe guard will pivot inwardly of the leading edge of the metatarsal guard when the toe portion of the boot is being pivoted relative to the boot.
  • a safety boot of molded plastic materials having an integral sole (12) and upper, a protective plate (18) provided in the sole portion (12) and extending the width and length thereof and allowing for longitudinal flexing of the sole (12), a rigid arched metatarsal guard member (20) extending laterally and having side portions (30), the side portions (30) including depending flanges (30) extending inwardly thereof and attached to the sole plate (18) such as to form an integral protective cage for the inner step of a person's foot and having the cage completely rigid in a lateral plane thereby reducing the possibility of collapsing under severe shock.
  • the metatarsal guard includes a pair of opposed flanges at the edges of the side members and fixed to the underside of the sole plate while the toe guard member includes inwardly extending flanges lying over the top surface of the sole plate.
  • the heel includes a portion of the sole plate extending therewithin, and a plurality of recesses formed therein providing narrow walls of plastics material therebetween such that the walls can collapse in the case of a severe shock applied to the heel.
  • the metatarsal guard member (20) has a concave outer surface in a longitudinal direction merging at a leading edge (20a) thereof, in a convex shaped rib (23) and at the trailing edge thereof, in a convex shaped rib (23), each rib (23) extending in the lateral direction of the metatarsal guard (20) from the sole plate (18) thereof.
  • a mining boot 10 having a sole 12, heel 14, toe portion 16, a metatarsal portion 17, and an upper calf portion 15.
  • the boot is made from plastics material P and can be injected in one piece.
  • the sole 12, heel 14 and upper are integrally molded.
  • the boot 10, as shown, includes a metallic sole plate 18 extending the length and width of the sole 12 and embedded therein.
  • the sole plate 18 has a stepped portion extending into the heel 14, as shown in Figure 3.
  • a plan view of the sole plate 18 is illustrated.in Figure 4.
  • a separate metallic toe guard 22 is dome- shaped and includes flanges 28 extending inwardly. It is fixed such that the flanges 28 overlie the top surface of the sole plate 18. It is preferable that the toe guard not be fixed to the sole plate in order to allow easy separation in the case of an emergency.
  • a metatarsal guard 20 which is also of rigid metallic material such as steel, includes inwardly extending flanges 30 which are fixed to the sole plate from the undersurface thereof. In other words, flanges 30 can be welded to the underside of the sole plate 18 allowing for free flexing movement.
  • the toe guard 22 and metatarsal guard 20 are arranged such that the trailing edge 22a of the toe guard 22 and the leading edge 20a of the metatarsal guard 20 are in the same laterally extending plane, but the trailing edge 22a is spaced inwardly on all sides and the top from the leading edge 20a.
  • the metatarsal guard 20 has formed therein a pair of ribs 23 extending parallel to the laterally extending plane so as to reinforce the guard 20.
  • the depending flanges extend inwardly and are attached to the sole plate such as to form an integral protective cage for the instep, the cage being completely rigid in a lateral plane thereby reducing the possibility of collapse under severe shock.
  • the metatarsal guard member 20 has a concave outer surface in a longitudinal direction merging at a leading edge thereof, in a convex shaped rib and at the tracking edge thereof in a convex shaped rib, each rib extending in the lateral direction of the guard 20 from the sole plate 18.
  • a last (not shown) is inserted in the mold after the armor structure, including the sole plate 18, toe guard 22 and metatarsal guard 20, have been placed in the mold.
  • the last may have a hydraulic extending toe portion and will include a forwardly extending flange portion to form the recess 34 about the trailing edge of the toe guard 22a, as will be described later.
  • the last will also have frusto-conical projections in order to form the conical recesses 40 in the heel 14.
  • the plastics material P is injected into the mold in the conventional manner, and after the material has cooled down, the last is removed from the inner portion of the boot after retracting the toe portion.
  • the so-formed boot includes, as shown in Figure 3, a hinge flexure area 32 which is in the form of a reverse fold although the bight of the fold is connected directly to the material forming the toe portion 16.
  • the so-formed, axially extending recess 34 allows the trailing edge 22a of the toe 22 to move inwardly with reasonable ease during a walking attitude when the boot is rocked on its sole as in the case of a walking shoe.
  • the trailing edge 22a which is not overlapped by the trailing edge 20a, will assume a position wherein the leading edge 22a will overlap the trailing edge 22a momentarily in the pivoting of the toe 16 relative to the boot.
  • the flanges 28 of the toe guard 22 and the. flanges 30 of the metatarsal guard 20 are arranged as shown in order to provide increased flexing mobility of the sole plate 18.
  • the sole 12 of the boot is provided with ribs 24 spaced apart forming grooves: However, in the area of flexure of the sole 12, a larger groove 26 is provided to allow for easier flexing of the boot and also to provide a convenient, rung-engaging foot hold for climbing ladders.
  • the heel portion 14 of the boot 10 is molded integrally with the boot, and in the present embodiment, is provided with frusto-conical apertures extending downwardly in the heel forming narrow walls between the recesses 40 such that in the case of a severe shock, the walls forming recesses 40 will collapse, thereby acting as a shock absorber for the heel. It might happen in a mining situation where a miner may accidentally fall and land on his feet or have to jump from a relatively high perch onto a rock surface. In such a case, it is believed that the walls between the recesses 40 will give, thereby acting as a shock absorber.
  • the sole plate 18 acts, in addition to locating the toe guard 22 and the metatarsal guard 20, as armor against sharp objects from beneath the sole.
  • corrugated ribs 36 are formed in the ankle area of the boot to allow flexing of the calf portion 15 relative to the tarsal portion of the boot.
  • corrugated ribs 38 will be provided extending vertically in the Achilles tendon area of the boot. This particular area of the boot is form fitting and resiliently presses against the Achilles tendon. However, when the boot is being placed on one's foot, the heel of the foot displaces and expands the portion of the boot formed by the corrugations 38, thus enabling the boot to be easily fitted.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Pens And Brushes (AREA)
EP80304442A 1979-12-17 1980-12-09 Botte de sécurité Expired EP0030839B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80304442T ATE8730T1 (de) 1979-12-17 1980-12-09 Sicherheitsstiefel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10455179A 1979-12-17 1979-12-17
US104551 1979-12-17

Publications (2)

Publication Number Publication Date
EP0030839A1 true EP0030839A1 (fr) 1981-06-24
EP0030839B1 EP0030839B1 (fr) 1984-08-01

Family

ID=22301074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80304442A Expired EP0030839B1 (fr) 1979-12-17 1980-12-09 Botte de sécurité

Country Status (7)

Country Link
EP (1) EP0030839B1 (fr)
JP (1) JPS56128101A (fr)
AT (1) ATE8730T1 (fr)
AU (1) AU539872B2 (fr)
CA (1) CA1141950A (fr)
DE (1) DE3068819D1 (fr)
ZA (1) ZA807832B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228177A (en) * 1987-09-04 1990-08-22 Dezider Krajcir Safety shoe
WO1992014372A1 (fr) * 1991-02-21 1992-09-03 Techboot Pty. Ltd. Chaussure de protection
EP0701783A1 (fr) * 1995-06-01 1996-03-20 Otter Schutz Gesellschaft für Entwicklung und Vertrieb und persönlicher Schutzausrüstungen mbH Semelle pour chaussure de sécurité et chaussure de sécurité munie d'une telle semelle
WO1999015042A1 (fr) * 1997-09-19 1999-04-01 Krajcir Dezi A Protecteurs pour orteils et metatarses pour chaussures de securite
US6389715B1 (en) 1997-09-19 2002-05-21 Dezi A. Krajcir Toe box and metatarsal protectors for safety footwear
AU2011200865B2 (en) * 2003-11-21 2012-07-19 Shezi Industrial Holdings (Pty) Ltd T/A Neptun Boot Metatarsal guards for footwear
WO2017010866A1 (fr) * 2015-07-15 2017-01-19 Hevea B.V. Article chaussant à élément de protection, et procédé de fabrication d'un tel article chaussant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0555905U (ja) * 1991-08-27 1993-07-27 晃 金子 消防活動靴

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2027661A1 (de) * 1970-06-05 1971-12-09 Strickling, Ludwig, 4711 Bork Schuhwerk mit eingearbeitetem stoß- und schlagfestem Unfallschutz, bei dem eine von der Zehenschutzkappe ausgehend zum Mittelfuß verlaufende Abdeckung vorgesehen ist

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1717127A (en) * 1929-06-11 John toole
US2613457A (en) * 1947-04-25 1952-10-14 Edward F Mclaughlin Instep guard for safety shoes
US2842872A (en) * 1956-12-07 1958-07-15 Endicott Johnson Corp Safety shoe
US3102347A (en) * 1961-10-11 1963-09-03 Frank B Griswold Safety shoe and instep guard therefor
US3308560A (en) * 1965-06-28 1967-03-14 Endicott Johnson Corp Rubber boot with fibreglass instep guard
FR1490115A (fr) * 1966-08-19 1967-07-28 Ind Lemm & Co Chaussure de protection, comportant une bande de protection du métatarse
DE1961065A1 (de) * 1969-12-05 1971-06-09 Soltau Ferdinand Dipl Ing Sicherheitsschuh mit fest angebrachtem,mehrschichtigem Mittelfussschutz

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2027661A1 (de) * 1970-06-05 1971-12-09 Strickling, Ludwig, 4711 Bork Schuhwerk mit eingearbeitetem stoß- und schlagfestem Unfallschutz, bei dem eine von der Zehenschutzkappe ausgehend zum Mittelfuß verlaufende Abdeckung vorgesehen ist

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228177A (en) * 1987-09-04 1990-08-22 Dezider Krajcir Safety shoe
GB2228177B (en) * 1987-09-04 1992-10-21 Dezider Krajcir Safety shoe
WO1992014372A1 (fr) * 1991-02-21 1992-09-03 Techboot Pty. Ltd. Chaussure de protection
EP0701783A1 (fr) * 1995-06-01 1996-03-20 Otter Schutz Gesellschaft für Entwicklung und Vertrieb und persönlicher Schutzausrüstungen mbH Semelle pour chaussure de sécurité et chaussure de sécurité munie d'une telle semelle
WO1999015042A1 (fr) * 1997-09-19 1999-04-01 Krajcir Dezi A Protecteurs pour orteils et metatarses pour chaussures de securite
US6389715B1 (en) 1997-09-19 2002-05-21 Dezi A. Krajcir Toe box and metatarsal protectors for safety footwear
AU2011200865B2 (en) * 2003-11-21 2012-07-19 Shezi Industrial Holdings (Pty) Ltd T/A Neptun Boot Metatarsal guards for footwear
WO2017010866A1 (fr) * 2015-07-15 2017-01-19 Hevea B.V. Article chaussant à élément de protection, et procédé de fabrication d'un tel article chaussant

Also Published As

Publication number Publication date
CA1141950A (fr) 1983-03-01
AU539872B2 (en) 1984-10-18
DE3068819D1 (en) 1984-09-06
JPS56128101A (en) 1981-10-07
AU6526480A (en) 1981-06-25
ZA807832B (en) 1981-12-30
EP0030839B1 (fr) 1984-08-01
ATE8730T1 (de) 1984-08-15

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