EP1469753A1 - Fabric and protective structure for users of hand held power-driven chainsaws - Google Patents
Fabric and protective structure for users of hand held power-driven chainsawsInfo
- Publication number
- EP1469753A1 EP1469753A1 EP02793340A EP02793340A EP1469753A1 EP 1469753 A1 EP1469753 A1 EP 1469753A1 EP 02793340 A EP02793340 A EP 02793340A EP 02793340 A EP02793340 A EP 02793340A EP 1469753 A1 EP1469753 A1 EP 1469753A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fabric
- yams
- protective
- aramid
- dtex
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/24—Resistant to mechanical stress, e.g. pierce-proof
- A41D31/245—Resistant to mechanical stress, e.g. pierce-proof using layered materials
Definitions
- This invention refers to a fabric and protective structure to be applied to articles of apparel such as pants, jackets, shoes and boots worn by users of hand held power-driven chainsaws, particularly woodcutters.
- a first object of this invention is to provide a protective fabric that stops the chain of a power-driven saw in case of accidental contact with the teeth of the chain, even if only a single layer of fabric is used.
- a second object of the invention is to provide a protective stmcture designed to be applied to the clothing worn by users of chainsaws that is light, flexible and economical to produce.
- - fig. 1 illustrates a schematic plan view of a protective fabric in conformity with the invention
- - fig. 2 and 3 illustrate cross-sectional views, taken along a warp thread and respectively a weft thread of the fabric shown in fig. 1, of a protective structure in conformity with a first mode of carrying out the invention
- - fig. 4 illustrates a schematic perspective view of a protective structure in conformity with a second mode of carrying out the invention
- - fig. 5 illustrates a cross-sectional view taken along a warp thread of the fabric of the protective stmcture shown in fig. 4.
- a protective fabric 10 substantially consists of a woven fabric, with a wave of weft threads 12,13 and warp threads 14, having a stmcture with floats in the warp or weft designed to facilitate the rapid release of the threads upon contact with the teeth of a power-driven chainsaw, these floats preferably passing over at least 3 threads.
- the fabric comprises 15-20 % by weight of aramid yams and 80-85 % of non-aramid yarns with a tenacity of at least 7 gr/dtex. More in particular, in this fabric, the warp yams 14 (or, alternatively, the weft yams) shall be made up exclusively of non-aramid yams.
- the protective fabric shall have the following construction:
- - in the weft (or warp) from 5 to 7 yams per cm made of aramid fibers 12, with high tenacity, and of non-aramid fibers 13 with tenacity between 7 and 8.5 gr/dtex.
- Non-aramid yams 13,14 can be nylon, polyester, polypropylene, polyethylene, LCD, PBO, having a linear density preferably between 560 and 1880 dtex, while aramid yams shall have preferably a linear density between 560 and 3000 dtex.
- the aramid yams 12 shall alternate with non-aramid yams 13.
- Fig. 2 and 3 schematically illustrate, in cross-section along a warp yam 14 and respectively a weft yam 12, a protective stmcture 20 in which a single layer of fabric 10
- This substrate 22 that has the substantial function of providing sufficient space between the surface of the garment potentially exposed to the teeth of the saw and the skin of the user, may consist of a synthetic non- woven fabric with a thickness of not less than 3 mm and weight of not more than 270 gr/sq.mt., made, for example, with fibers in polyester, polypropylene or polyethylene, worked with "Malivlies" technology and voluminized by means of DiLour or DiLoop machines.
- the voluminized part 22a of the substrate 22 is in contact with the fabric 10.
- the substrate may consist of a layer of 4-5 mm of thickness of a bicomponent fiber wadding of polyester in which a core is provided with an external heat-sensitive sheath.
- the external heat-sensitive sheath melts so that the fibers bond together to form a supporting layer that maintains its resiliency even after multiple washings.
- the stmcture 20 can be quilted. In this way it is possible to counteract any tendency of the yams of the fabric to alter their reciprocal positions due to manipulation, so as to become thinner in some zones with the risk of providing less protection.
- Garments (pants and jackets) equipped with a protective stmcture, made using a fabric with a substrate as specified above, have passed the tests foreseen by standard EN 381.
- the substrate may consist of a foam material with a thickness of not less than 4 mm, in polyester, polyether, polyurethane or similar material, preferably open cell and with a density of at least 16 Kg/cu.mt.
- a protective structure in conformity with the invention, consisting of a single layer of non-woven material (wadding or foam) and a single layer of protective fabric is much more flexible than the multiple-layered stmctures used up to now, and about 60% lighter.
- Fig. 4 and 5 illustrate a mode of use of a fabric and a protective stmcture in conformity with the invention, in the case of garments (or parts of them) having a limited area potentially exposed to the action of the teeth of a chain saw, such as gloves and footwear.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Woven Fabrics (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Catching Or Destruction (AREA)
- Outer Garments And Coats (AREA)
- Soil Working Implements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPO20010008 | 2001-11-28 | ||
IT2001PO000008A ITPO20010008A1 (en) | 2001-11-28 | 2001-11-28 | FABRIC AND PROTECTIVE STRUCTURE FOR USERS OF PORTABLE MOTORIZED SAWS |
PCT/IT2002/000749 WO2003045176A1 (en) | 2001-11-28 | 2002-11-28 | Fabric and protective structure for users of hand held power-driven chainsaws |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1469753A1 true EP1469753A1 (en) | 2004-10-27 |
EP1469753B1 EP1469753B1 (en) | 2008-07-30 |
Family
ID=11453360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02793340A Expired - Lifetime EP1469753B1 (en) | 2001-11-28 | 2002-11-28 | Protective structure for users of hand held power-driven chainsaws |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1469753B1 (en) |
AT (1) | ATE402623T1 (en) |
AU (1) | AU2002358994A1 (en) |
DE (1) | DE60227997D1 (en) |
DK (1) | DK1469753T3 (en) |
ES (1) | ES2310616T3 (en) |
IT (1) | ITPO20010008A1 (en) |
PT (1) | PT1469753E (en) |
WO (1) | WO2003045176A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE1650858A1 (en) * | 2016-06-17 | 2017-12-18 | Jirotex Furudahlsgruppen Ab | Protective material to prevent cutting through the material |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1088701A (en) * | 1980-02-14 | 1980-11-04 | Wheelabrator Corporation Of Canada Limited | Fabric for use in protector pads for chain saws |
DE8422280U1 (en) * | 1984-07-26 | 1985-03-14 | Hero-Textil GmbH, 7180 Crailsheim | CUT PROTECTIVE INSERT FOR SAFETY CLOTHING AND SAFETY SHOES |
US5395683A (en) * | 1993-03-26 | 1995-03-07 | Alliedsignal Inc. | Protective pad |
FR2739759B1 (en) * | 1995-10-17 | 1998-02-06 | Oci Sa | FABRIC FOR USE IN MULTI-LAYERED MATTRESSES MOUNTED IN PROTECTIVE GARMENT AND PROTECTIVE GARMENT |
US5876834A (en) * | 1998-01-23 | 1999-03-02 | E. I. Du Pont De Nemours And Company | Protective chain saw chaps |
-
2001
- 2001-11-28 IT IT2001PO000008A patent/ITPO20010008A1/en unknown
-
2002
- 2002-11-28 DE DE60227997T patent/DE60227997D1/de not_active Expired - Lifetime
- 2002-11-28 WO PCT/IT2002/000749 patent/WO2003045176A1/en active IP Right Grant
- 2002-11-28 PT PT02793340T patent/PT1469753E/en unknown
- 2002-11-28 AT AT02793340T patent/ATE402623T1/en active
- 2002-11-28 AU AU2002358994A patent/AU2002358994A1/en not_active Abandoned
- 2002-11-28 EP EP02793340A patent/EP1469753B1/en not_active Expired - Lifetime
- 2002-11-28 DK DK02793340T patent/DK1469753T3/en active
- 2002-11-28 ES ES02793340T patent/ES2310616T3/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO03045176A1 * |
Also Published As
Publication number | Publication date |
---|---|
DK1469753T3 (en) | 2008-11-17 |
EP1469753B1 (en) | 2008-07-30 |
ATE402623T1 (en) | 2008-08-15 |
ITPO20010008A1 (en) | 2003-05-28 |
ES2310616T3 (en) | 2009-01-16 |
PT1469753E (en) | 2008-10-22 |
WO2003045176A1 (en) | 2003-06-05 |
AU2002358994A1 (en) | 2003-06-10 |
DE60227997D1 (en) | 2008-09-11 |
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