WO1997043919A1 - Improved blast resistant footwear - Google Patents
Improved blast resistant footwear Download PDFInfo
- Publication number
- WO1997043919A1 WO1997043919A1 PCT/SG1997/000010 SG9700010W WO9743919A1 WO 1997043919 A1 WO1997043919 A1 WO 1997043919A1 SG 9700010 W SG9700010 W SG 9700010W WO 9743919 A1 WO9743919 A1 WO 9743919A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- boot
- sole
- aramid
- woven
- cocoon
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/026—Composites, e.g. carbon fibre or aramid fibre; the sole, one or more sole layers or sole part being made of a composite
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/12—Soles with several layers of different materials
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/0026—Footwear characterised by the shape or the use for use in minefields; protecting from landmine blast; preventing landmines from being triggered
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/16—Overshoes
-
- 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 the construction of footwear and, in particular, to a boot which is constructed to protect the foot from serious damage resulting from the impact of projectiles and explosions from anti ⁇ personnel mines.
- Anti-personnel mines which are designed to explode as a person steps on the mine represent a common and serious problem for any troops deployed either on a conventional battle field or involved in guerilla warfare.
- the amount of explosive present in a mine will dictate whether the mine on exploding maims or kills the person triggering the mine.
- protective footwear can play a role in lessening the likelihood of serious injury.
- Such footwear can also have a role in lessening the damage caused by the impact of projectiles such as bullets and shrapnel.
- the present inventor has developed boots, and in particular boot soles, that can protect the foot of a person triggering an anti-personnel mine containing reasonable quantities of explosive while still providing the wearer with sufficient toe-to-heel flexion in the boot to allow activities such as running, jumping and climbing (see Singapore Patent Application nos 9500037-8 and 9501007-0). It would be desirable to have a further improved boot that could protect the foot and lower leg of a wearer from explosions produced by mines having larger quantities of explosive and from mines using high temperature explosives which can rip through boots of earlier designs. Summary of the Invention
- the present invention consists in footwear comprising a cocoon of blast-resistant material shaped to substantially surround a boot, the cocoon having a sole and an upper, the cocoon being connected to the boot or the leg of the wearer of the boot.
- the sole of the cocoon may be comprised of rubber or polyurethane and have embedded therein at least one further layer of woven aramid fibre.
- the cocoon is preferably attached to the boot by straps extending from the cocoon around the upper portion of the boot.
- the present invention consists in a boot for a foot of a wearer, the boot having a sole and an upper, the sole having at least one woven aramid layer embedded through the sole, the boot being characterised in that a cocoon of blast-resistant material is incorporated into the boot such that it would substantially surround the entire foot of a wearer of the boot.
- the cocoon comprises at least one sheet of blast-resistant material.
- the blast-resistant material can be comprised of an aramid weave comprising at least one-ply of at least 1000 dtex aramid (eg Twaron ® 2010). It can be composed of woven 1 200 dtex aramid such as Twaron ® 2040 having a 460 g/m 2 tight plain weave.
- the cocoon can comprise or include a layer of woven ceramic fibre or ceramic/glass-ceramic woven composite fibre.
- the cocoon in the second aspect is preferably shaped in the form of a "bootee” that can be embedded in the sole and upper of the boot.
- the aramid weaves comprising the protective layer in the cocoon can be incorporated into a sandwich of layers including layers of woven ceramic fibres or a separate ceramic/glass-ceramic composite woven fibre to further increase the strength of the cocoon when exposed to high temperatures.
- a layer of woven ceramic fibres can comprise the outermost layer of the cocoon.
- the sole of the boot is preferably comprised of at least an outer portion and an intermediate portion.
- the outer sole can be comprised of rubber or polyurethane moulded to suit the requirements of the boot.
- the portion of the cocoon extending through the sole preferably is positioned between the outer portion and the at least one woven aramid layer embedded in the sole.
- the intermediate portion preferably has a plurality of layers of woven aramid embedded within it.
- the woven aramid layers can have carbon graphite fibres either interwoven with or between the aramid layers to further strengthen the sole.
- there are 24 layers of aramid, carbon and ceramic woven fibres eg Toray, ® /8HR, ® M60/M80 6K/12K TOW plain weave, the density of which ranges from 300g/m 2 to 600g/m 2 ).
- the intermediate portion of the sole can also include a deflection plate running along the sole from the toe to the heel.
- the deflector plate preferably has a first side directed towards the outer portion, this side having an angled surface designed to deflect the effect of an explosive blast away from the foot.
- the deflector plate can be comprised of a composite aramid fibres and carbon fibres embedded in an adhesive/polymer. The ratio of aramid to carbon fibres in the composite is preferably 50:50 with the strands of the fibres being approximately 85% unidirectional along the toe-to-heel axis of the boot.
- the sole can include an upper portion which comes into contact with the foot of the wearer. The upper portion can be fabricated from chopped aramid and nylon fibre board.
- the upper portion can comprise at least four layers of woven aramid adhered with adhesive/polymer such as nylon.
- the boot upper is preferably fabricated from leather and can have an outer leather layer and an inner vamp layer of leather or cotton between which the portion of the cocoon extending through the upper is positioned. Stitching can be used to retain the layers constituting the cocoon in place in the footwear.
- the stitching is preferably comprised of woven aramid yarn.
- further layers of woven aramid fibres (such as Twaron ® 2040) can be inserted in the intermediate portion of the sole.
- a layer of aramid fibres is present above and below the at least one woven aramid layer in the intermediate portion, with the additional layers extending at least partially into the upper of the boot.
- the boot is preferably shaped so as to enclose at least the ankle of a wearer thus affording a level of protection for the ankle and the lower portion of the leg.
- Figure 1 is a vertical cross-sectional view of the boot according to the present invention
- Figure 1 A is a vertical cross-sectional view of the cocoon present in the boot depicted in Figure 1 ;
- Figure 2 is an enlarged and simplified cross-sectional view of the mid- boot region along line ll-ll of the boot depicted in Figure 1 ;
- Figure 3 is a vertical cross-sectional view of an alternative embodiment of a cocoon that surrounds a boot. Description of the Preferred Embodiment
- a boot having the features of a preferred embodiment of the present invention is generally depicted as 10 in Figures 1 and 2.
- the boot 10 has a standard shaped upper 1 1 adapted to enclose at least the foot and ankle of a wearer, a composite sole 12 and a cocoon of blast-resistant material 13 in the shape of a bootee (see Fig. 1 A) .
- the blast-resistant layers 1 8 and 1 9 can extend throughout the entire upper 1 1 by including layers 1 8 and 19 between the outer leather layer 25 and the inner vamp leather layer 26 in the upper quarter of the upper 1 1 . These layers can be connected to the layers in the bootee portion 1 3 by appropriate stitching 30.
- the composite sole comprises an outer polyurethane sole 14 having a tread 1 7, an intermediate sole portion 1 5 and an upper sole portion 1 6.
- the cocoon 13 consists of at least one layer of ceramic or ceramic/glass-ceramic woven composite fibre making up the outer cocoon 1 9 and at least one layer of aramid weave 1 8.
- the aramid weave 1 comprises at least one-ply of at least 1 000 dtex aramid having a satin or plain weave (eg Twaron ® 2010) .
- the layers 18 and 1 9 surround the foot of a wearer of the boot 10 and once placed in the boot 1 0 are embedded in the upper boot portion 1 1 and between the outer sole 14 and the intermediate sole 1 5.
- the intermediate sole 1 5 has a plurality of layers of woven aramid fibre 21 and carbon fibre 22 embedded in the polyurethane.
- a deflector plate 23 also extends from the toe to the heel of the sole 1 2 and further serves to strengthen the sole 12.
- the deflector plate 23 has an angled lower surface 24, the angle of the surface 24 being adapted to deflect the effect of an explosive blast away from the foot of a wearer of the boot 10.
- the deflector plate 23 is comprised of a composite 50:50 woven aramid fibre and carbon fibre embedded in adhesive/polymer.
- the boot upper 1 1 is fabricated from an outer leather layer 25 and an inner vamp leather layer 26. The cocoon 1 3 is supported between the layers 25 and 26.
- stitching 27 through the side of the boot can be employed as depicted in the drawings.
- the stitching 27 can be comprised of woven aramid fibres (eg. 420 dtex aramid) and/or polyester.
- two further layers 28 and 29 of aramid fibres are inserted in the intermediate portion 1 5 of the sole and extend into the upper 1 1 as depicted in Figure 2.
- a boot having the features described above will be effective in providing protection from explosions of anti-personnel mines containing at least 60 grams and possibly 80 grams of pressed compound B explosive.
- FIG. 3 An alternative embodiment of the invention is depicted in Figure 3.
- the standard army boot 40 having a sole 46, is surrounded by an outer cocoon 41 into which the boot 40 has been placed.
- the cocoon has the features of the cocoon 1 3 described above except rather than fitting within the boot, the cocoon 41 surrounds the boot and provides a quick and relatively inexpensive means of improving the blast-resistance of standard army boots.
- the cocoon 41 has a sole 42 and an upper 43, the upper having an inner surface 47 and an outer surface 48.
- Embedded within the sole 42 and upper 43 is at least one layer of ceramic or glass-ceramic fibre 45 and a layer of woven aramid weave 44.
- the sole 42 can have a plurality of layers of woven aramid fibre, preferably 4 layers, together with polymers, such as nylon and/or carbon fibre embedded therein.
- a deflector plate, as described above, could also be incorporated into the sole 42.
- the cocoon 41 could be strapped to the boot 40 by straps 49 as depicted in Figure 3. Alternative means of attachment could be employed as desired.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT97917498T ATE212800T1 (en) | 1996-05-21 | 1997-03-25 | EXPLOSION-PROOF FOOTWEAR |
JP09542249A JP3127304B2 (en) | 1996-05-21 | 1997-03-25 | Improved blast protection shoes |
CA002256454A CA2256454C (en) | 1996-05-21 | 1997-03-25 | Improved blast resistant footwear |
EP97917498A EP0921736B1 (en) | 1996-05-21 | 1997-03-25 | Improved blast resistant footwear |
SK1594-98A SK159498A3 (en) | 1996-05-21 | 1997-03-25 | Improved blast resistant footwear |
NZ333351A NZ333351A (en) | 1996-05-21 | 1997-03-25 | Boot for protection against landmines, boot surrounded by blast resistant cocoon of aramid fibre |
AU25795/97A AU714556B2 (en) | 1996-05-21 | 1997-03-25 | Improved blast resistant footwear |
DE69710340T DE69710340T2 (en) | 1996-05-21 | 1997-03-25 | EXPLOSION-PROOF FOOTWEAR |
IL12719097A IL127190A (en) | 1996-05-21 | 1997-03-25 | Blast resistant footwear |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG9602313 | 1996-05-21 | ||
SG9602313-0 | 1996-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997043919A1 true WO1997043919A1 (en) | 1997-11-27 |
Family
ID=20429236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SG1997/000010 WO1997043919A1 (en) | 1996-05-21 | 1997-03-25 | Improved blast resistant footwear |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0921736B1 (en) |
JP (1) | JP3127304B2 (en) |
CN (1) | CN1121831C (en) |
AT (1) | ATE212800T1 (en) |
AU (1) | AU714556B2 (en) |
CA (1) | CA2256454C (en) |
DE (1) | DE69710340T2 (en) |
IL (1) | IL127190A (en) |
NZ (1) | NZ333351A (en) |
RU (1) | RU2176468C2 (en) |
SK (1) | SK159498A3 (en) |
TR (1) | TR199802543T2 (en) |
WO (1) | WO1997043919A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1016355A2 (en) | 1998-12-29 | 2000-07-05 | Guy Andrew Vaz | Protective boot and sole structure and method of making a metal matrix composite material |
WO2000041583A1 (en) * | 1999-01-12 | 2000-07-20 | E.I. Du Pont De Nemours And Company | Puncture resistant composite |
WO2001032042A1 (en) * | 1999-11-04 | 2001-05-10 | Lee Kyun Chul | The mine bombproof, bulletproof safety combat boots |
AT408918B (en) * | 2000-03-14 | 2002-04-25 | Astron Elastomerprodukte Ges M | MULTILAYER MATERIAL FOR PROTECTING BODY PARTS |
EP1216393A1 (en) * | 1999-09-07 | 2002-06-26 | The Commonwealth Of Australia | Protective footwear against landmine |
WO2003037125A1 (en) * | 2001-10-29 | 2003-05-08 | Petr Zeman | Anti land-mine boots |
WO2009128802A1 (en) * | 2008-04-18 | 2009-10-22 | Archangel Armor | Boot guards |
WO2010128349A1 (en) * | 2009-05-05 | 2010-11-11 | Andres Duque | Boot for protection against "shock wave" anti-personnel mines |
WO2019133662A1 (en) * | 2017-12-28 | 2019-07-04 | Under Armour, Inc. | Fiber reinforced plate articles of footwear and methods of making |
FR3081295A1 (en) * | 2018-05-23 | 2019-11-29 | Digitsole | METHOD FOR INTEGRATING AN ELECTRONIC MODULE IN AN SOLE PROVIDED WITH AN ANTI-PERFORATION DEVICE |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103099386B (en) * | 2011-11-14 | 2016-08-03 | 际华三五一五皮革皮鞋有限公司 | Explosion-proof boots |
CN104709129B (en) * | 2013-12-13 | 2017-03-08 | 航宇救生装备有限公司 | A kind of vehicle anti-Rhizoma Anemones flaccidae occupant foot and lower limb protection device |
CN104939423B (en) * | 2015-06-30 | 2016-08-24 | 际华三五一四制革制鞋有限公司 | Multifunctional lightning protection, explosion-proof boots and preparation technology thereof |
CN109475200B9 (en) * | 2016-07-20 | 2021-09-24 | 耐克创新有限合伙公司 | Shoe plate |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3903557A (en) * | 1974-01-17 | 1975-09-09 | Safety Inc | Method of preparing a protective device for safety shoes |
GB2191384A (en) * | 1986-06-09 | 1987-12-16 | Secr Defence | Protective footwear |
US4862606A (en) * | 1986-02-20 | 1989-09-05 | Siskind Leland B M | Toe guard for footwear, process for its manufacture, and footwear so made |
GB2264221A (en) * | 1992-02-12 | 1993-08-25 | Wyatt Gates | Reinforcement device for footwear |
WO1996003277A1 (en) * | 1994-07-28 | 1996-02-08 | Akzo Nobel N.V. | Clothing for protection against stab and bullet wounds |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG34208A1 (en) * | 1995-03-01 | 1996-12-06 | Guy Andrew Vaz | Blast and fragment resistant polyurethane boot sole for safety footwear |
SG69947A1 (en) * | 1995-08-01 | 2000-01-25 | Guy Andrew Vaz | Improved blast and fragment resistant safety boot footwear |
-
1997
- 1997-03-25 SK SK1594-98A patent/SK159498A3/en unknown
- 1997-03-25 CN CN97194883A patent/CN1121831C/en not_active Expired - Fee Related
- 1997-03-25 EP EP97917498A patent/EP0921736B1/en not_active Expired - Lifetime
- 1997-03-25 NZ NZ333351A patent/NZ333351A/en unknown
- 1997-03-25 AT AT97917498T patent/ATE212800T1/en not_active IP Right Cessation
- 1997-03-25 IL IL12719097A patent/IL127190A/en not_active IP Right Cessation
- 1997-03-25 TR TR1998/02543T patent/TR199802543T2/en unknown
- 1997-03-25 AU AU25795/97A patent/AU714556B2/en not_active Ceased
- 1997-03-25 DE DE69710340T patent/DE69710340T2/en not_active Expired - Fee Related
- 1997-03-25 CA CA002256454A patent/CA2256454C/en not_active Expired - Fee Related
- 1997-03-25 RU RU98123073/12A patent/RU2176468C2/en not_active IP Right Cessation
- 1997-03-25 JP JP09542249A patent/JP3127304B2/en not_active Expired - Fee Related
- 1997-03-25 WO PCT/SG1997/000010 patent/WO1997043919A1/en active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3903557A (en) * | 1974-01-17 | 1975-09-09 | Safety Inc | Method of preparing a protective device for safety shoes |
US4862606A (en) * | 1986-02-20 | 1989-09-05 | Siskind Leland B M | Toe guard for footwear, process for its manufacture, and footwear so made |
GB2191384A (en) * | 1986-06-09 | 1987-12-16 | Secr Defence | Protective footwear |
GB2264221A (en) * | 1992-02-12 | 1993-08-25 | Wyatt Gates | Reinforcement device for footwear |
WO1996003277A1 (en) * | 1994-07-28 | 1996-02-08 | Akzo Nobel N.V. | Clothing for protection against stab and bullet wounds |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1016355A2 (en) | 1998-12-29 | 2000-07-05 | Guy Andrew Vaz | Protective boot and sole structure and method of making a metal matrix composite material |
EP1016355A3 (en) * | 1998-12-29 | 2000-09-20 | Guy Andrew Vaz | Protective boot and sole structure and method of making a metal matrix composite material |
EP1405577A3 (en) * | 1998-12-29 | 2005-06-01 | BfR Holdings Limited | Protective boot and sole structure and method of making a metal matrix composite material |
EP1405577A2 (en) | 1998-12-29 | 2004-04-07 | BfR Holdings Limited | Protective boot and sole structure and method of making a metal matrix composite material |
AU765430B2 (en) * | 1998-12-29 | 2003-09-18 | Bfr Holdings Limited | Protective boot and sole structure |
US6425193B2 (en) | 1998-12-29 | 2002-07-30 | Bfr Holdings Limited | Protective boot and sole structure |
US6461673B1 (en) | 1998-12-29 | 2002-10-08 | Bfr Holdings Limited | Protective boot and sole structure |
SG126668A1 (en) * | 1998-12-29 | 2006-11-29 | Bfr Holding Ltd | Protective boot and sole structure |
WO2000041583A1 (en) * | 1999-01-12 | 2000-07-20 | E.I. Du Pont De Nemours And Company | Puncture resistant composite |
US6368989B1 (en) | 1999-01-12 | 2002-04-09 | E. I. Du Pont De Nemours And Company | Puncture resistant composite |
EP1216393A4 (en) * | 1999-09-07 | 2003-01-15 | Commw Of Australia | Protective footwear against landmine |
EP1216393A1 (en) * | 1999-09-07 | 2002-06-26 | The Commonwealth Of Australia | Protective footwear against landmine |
WO2001032042A1 (en) * | 1999-11-04 | 2001-05-10 | Lee Kyun Chul | The mine bombproof, bulletproof safety combat boots |
AT408918B (en) * | 2000-03-14 | 2002-04-25 | Astron Elastomerprodukte Ges M | MULTILAYER MATERIAL FOR PROTECTING BODY PARTS |
WO2003037125A1 (en) * | 2001-10-29 | 2003-05-08 | Petr Zeman | Anti land-mine boots |
WO2009128802A1 (en) * | 2008-04-18 | 2009-10-22 | Archangel Armor | Boot guards |
WO2010128349A1 (en) * | 2009-05-05 | 2010-11-11 | Andres Duque | Boot for protection against "shock wave" anti-personnel mines |
WO2019133662A1 (en) * | 2017-12-28 | 2019-07-04 | Under Armour, Inc. | Fiber reinforced plate articles of footwear and methods of making |
US10743608B2 (en) | 2017-12-28 | 2020-08-18 | Under Armour, Inc. | Fiber reinforced plate for articles of footwear and methods of making |
US11058172B2 (en) | 2017-12-28 | 2021-07-13 | Under Armour, Inc. | Fiber reinforced plate for articles of footwear and methods of making |
FR3081295A1 (en) * | 2018-05-23 | 2019-11-29 | Digitsole | METHOD FOR INTEGRATING AN ELECTRONIC MODULE IN AN SOLE PROVIDED WITH AN ANTI-PERFORATION DEVICE |
Also Published As
Publication number | Publication date |
---|---|
EP0921736A1 (en) | 1999-06-16 |
ATE212800T1 (en) | 2002-02-15 |
JP2000501313A (en) | 2000-02-08 |
JP3127304B2 (en) | 2001-01-22 |
NZ333351A (en) | 1999-06-29 |
AU714556B2 (en) | 2000-01-06 |
IL127190A0 (en) | 1999-09-22 |
EP0921736B1 (en) | 2002-02-06 |
CN1219851A (en) | 1999-06-16 |
RU2176468C2 (en) | 2001-12-10 |
AU2579597A (en) | 1997-12-09 |
CN1121831C (en) | 2003-09-24 |
CA2256454C (en) | 2002-06-11 |
TR199802543T2 (en) | 1999-03-22 |
IL127190A (en) | 2002-11-10 |
SK159498A3 (en) | 1999-06-11 |
DE69710340D1 (en) | 2002-03-21 |
DE69710340T2 (en) | 2002-10-17 |
CA2256454A1 (en) | 1997-11-27 |
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