EP3160282A1 - Garniture de sécurité pour chaussures de sécurité - Google Patents

Garniture de sécurité pour chaussures de sécurité

Info

Publication number
EP3160282A1
EP3160282A1 EP15753171.6A EP15753171A EP3160282A1 EP 3160282 A1 EP3160282 A1 EP 3160282A1 EP 15753171 A EP15753171 A EP 15753171A EP 3160282 A1 EP3160282 A1 EP 3160282A1
Authority
EP
European Patent Office
Prior art keywords
lining
region
lamina
safety
cut
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.)
Withdrawn
Application number
EP15753171.6A
Other languages
German (de)
English (en)
Inventor
Roberto Xodo
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.)
"Erredue" di Xodo Roberto
Original Assignee
"Erredue" di Xodo Roberto
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 "Erredue" di Xodo Roberto filed Critical "Erredue" di Xodo Roberto
Publication of EP3160282A1 publication Critical patent/EP3160282A1/fr
Withdrawn legal-status Critical Current

Links

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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/07—Linings therefor

Definitions

  • the present invention relates to a safety lining for safety footwear.
  • Safety footwear are part of the personal protection devices used by people who need to use equipment that can cause severe physical injury, such as portable chainsaws.
  • vulcanized rubber boots are widespread which are provided with an insert made of a material in the form of wide-mesh fabric, which during vulcanization is arranged on the boot, at the region at risk, and is intended to wrap around the teeth of the chain with its fibers, said chain entraining them toward the pinion and blocking the chainsaw.
  • the protection offered by these boots consists in blocking the motion of the toothed chain without however preventing its blades from penetrating the boot before the fibers, by wrapping around the teeth of the chain, block it completely.
  • the problems described have been solved substantially by way of a solution that uses an insert with a sandwich-like structure that comprises in succession from the outside a layer for blocking the motion of the toothed chain of a chainsaw that is penetrating the footwear and a cut-resistant layer intended to cause the slippage of the chainsaw chain.
  • the blocking layer consists of one or more sheets of fabric that is resistant to cutting and tearing and the fibers of which are preset to wrap around the teeth of the chain that entrains them toward the pinion, blocking the chainsaw.
  • the internal layer is instead constituted by one or more sheets of fabric or nonwoven fabric that are sewn in a pocket at the perimeter and contrast the crossing of the chain, causing it to slip thereon.
  • the solution just described allows to obtain a boot, or in general a footwear, that is capable of ensuring a higher level of protection for the operator than the other types of boot; however, it is not free from aspects that can be improved.
  • the fibers of the insert preset to wrap around the teeth of the chainsaw, are shorter than the intermediate ones as in the ankle region and therefore, if the chainsaw cuts the boot, the same degree of safety as the other regions is not ensured.
  • the aim of the present invention is to devise a safety lining for safety footwear, such as boots for lumberjacks, capable of preventing complete penetration of the footwear by the teeth of the chainsaw with an insert that is thinner than the one required with known solutions.
  • an object of the invention is to provide a lining that is capable of ensuring protection for the toes, in the region that precedes the toe cap, that is equal to that offered in the other regions over which the insert is extended.
  • a safety lining for safety footwear of the type provided with an insert for protection of the region comprised between the tibia and the toes, closed in a pocket, said lining being characterized in that said insert has a sandwich-like structure that comprises in succession:
  • Figure 1 is a side elevation view of the lining according to the invention.
  • Figure 2 is a partially exploded perspective view of part of the lining according to the invention.
  • Figure 3 is a view of an item of footwear provided with the lining according to the invention.
  • Figure 4 is a side elevation view of a part of the lining according to the invention in a constructive variation thereof.
  • the lining according to the invention is designated generally by the reference numeral 10 in Figure 1.
  • the lining 10 is provided with a protective insert 12 that is extended over the region comprised between the tibia and the toes up to the tip 13, which is excluded.
  • the insert 12 is shown partially in an exploded view in Figure 2 and is closed within a pocket 14 shown in Figure 1.
  • the lining 10 is intended to be covered appropriately with an outer covering 15, which defines the final shape of the safety footwear 1 1.
  • the safety footwear 1 1 is shown with an opening, on the outer covering 15, that is designed specifically to allow to view the lining 10 with the pocket 14 in which the insert 12 is present.
  • the lining 10 can be provided conveniently with an internal covering made of wool or of other appropriate materials that are better suited for the season of use of the safety footwear 1 1.
  • Figure 1 shows that the lining 10 comprises an external cover 16 that covers its surface except for the region where the insert 12 is arranged.
  • the lining 1 1 can be conveniently constituted, from the inside outward, by a mesh, a padding layer made of Moitopren, and a film of plastic material, preferably polyurethane, of which the external cover 16 is made.
  • the external cover 16 can be constituted by other material that conveniently ensures adhesion to the plastic material to be overmolded.
  • the pocket 14 that contains the insert 12 is defined by an external covering sheet 17, shown in Figure 1 , which is similar to the preceding external cover 16 and is sewn and sealed to the remaining part of the lining 10 at the perimeter 18 of the pocket 14.
  • the external sheet 17 can be sealed for example with a spreadable sealant or with a heat-sealing process performed at the seam.
  • the insert 12 has a sandwich-like structure that comprises in succession:
  • These layers are interposed between the external sheet 17 and a portion of a structural layer of the upper of the safety footwear 1 1 , which consists preferably of an element made of jersey that is shaped by springing.
  • the jersey element reproduces the shape of the lining 1 1 in the region of the pocket 14 and is conveniently sewn perimetrically to the rest of the lining 10.
  • Figure 2 shows in a partially exploded view the insert 12, not the external sheet 17, which is instead present in Figure 1 , and the above cited portion of structural layer of the upper, i.e., the jersey element, also is not visible since it is covered with a sheet of fabric 21 (described hereinafter) that is glued onto it on the side directed toward the insert 12.
  • a sheet of fabric 21 (described hereinafter) that is glued onto it on the side directed toward the insert 12.
  • the sheet of fabric 21 might not be present.
  • the cut-resistant external layer 19 comprises three laminas 22 (so that the lining 10 follows the motion of the foot of the operator while walking), made of metallic material, of which an upper lamina 22a in the region that corresponds to the tibia, an intermediate lamina 22b in the region that corresponds to the tarsus, and a lower lamina 22c in the region that corresponds to the metatarsus and the toes.
  • the upper lamina 22a is joined to the intermediate lamina 22b and the latter is joined to the lower lamina 22c by means of a respective joint 23 that is arranged at the articulation of the ankle.
  • Each lamina 22 is preferably made of steel with a thickness comprised between approximately 0.25 mm and 0.30 mm.
  • the cut-resistant external layer 19 is obtained by joining the three laminas 22, but as an alternative it can be constituted by two laminas, of which an upper lamina in the region that corresponds to the tibia and a lower lamina in the region that extends from the tarsus to the toes, as in the preceding case joined conveniently by means of a joint at the ankle articulation.
  • FIG. 4 Another constructive variation of the lining 10 is shown in Figure 4. This variation is shown without an outer sheet in order to show the cut- resistant external layer 19.
  • the cut-resistant external layer 19 comprises a first lamina 22d in the tibial region and a plurality of second laminas 22e which are mutually articulated in the region that spans substantially from the instep to the toes.
  • the internal blocking layer 20 comprises, in the illustrated example, two sheets of fabric 21 , similar to the one cited earlier, which are shown in exploded view in Figure 2 but are sewn substantially at the perimeter 18 of the pocket 14 in the assembled product.
  • the sheets of fabric 21 have cut- and tear-resistance characteristics and their fibers are adapted to wrap around the teeth of the chain that entrains them toward the pinion and is blocked.
  • the internal blocking layer 20 also comprises another sheet of fabric 21 , the one cited previously, which is glued onto the portion of structural layer of the upper.
  • Some fabrics that are well-suited to block the chain in the described manner can be woven with filaments made of metallic material and can comprise aramid or polyurethane fibers or mixed materials of satin and Kevlar or satin and polyethylene fiber, and the number of blocking layers can be modified as a function of the level of protection that one wishes to offer.
  • the pocket 14 of which is sewn and sealed along the perimeter 18 to the remaining part of the lining it is possible to inject polyurethane or another thermoplastic material so as to define the outer covering 15 of the safety footwear 1 1 without running the risk that the injected material might penetrate through the seam.
  • the insert 12 stops the motion of the chain and its advancement toward the inside of the safety footwear 1 1.
  • the chainsaw when the chain cuts the outer covering 15, it encounters the cut-resistant external layer 19, the purpose of which is to cause the slippage of the chain that is penetrating the safety footwear 1 1 and slow its advancement. If the chainsaw is able to cut a lamina 22, it encounters the sheets of fabric 21 of the internal blocking layer 20 that lies below, the fabric fibers of which wrap around the teeth of the chain, which entrains them toward the pinion of the chainsaw, blocking it.
  • the stopping time of the chain moving at the speed of 28 m/s by means of an item of safety footwear 1 1 provided with the lining 10 according to the invention is shorter than the stopping time of a chain moving at the speed of 24 m/s obtained by using an item of safety footwear 10 provided with the same lining 10.
  • stopping occurs as a consequence of the slippage of its teeth on the lamina 22 of the cut-resistant external layer 19, which also causes its slowing.
  • the speed of the chain is equal to 28 m/s, it is capable of penetrating the cut-resistant external layer 19, reaching the internal blocking layer 20. In this case the slowing caused by the lamina 22 and the blocking caused by the fibers of the sheets of fabric 21 cause the motion of the chain to stop in a shorter time than in the preceding case.
  • the presence of the cut-resistant external layer 19 of steel lamina 22 ensures, for the part of the foot that corresponds to the toes, substantially in the region comprised between the tarsus and the tip 13 covered by the toe cap of the footwear, the same level of protection offered in the other regions over which the insert is extended.
  • the invention achieves the intended aim and objects, by providing a safety lining for safety footwear that is capable of stopping the advancement of a toothed chain of a chainsaw that is penetrating the footwear in a limited time despite using an insert of limited thickness, and also of ensuring the same level of protection over the entire region exposed to the risk of injury.
  • the materials used may be any according to requirements and to the state of the art.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

L'invention concerne une garniture de sécurité (10) pour chaussures de sécurité (11), du type ayant un insert (12) pour protéger la région comprise entre le tibia et les orteils, fermé dans une poche (14). L'insert (12) possède une structure de type sandwich qui comprend en succession : - au moins une couche externe résistant aux coupures (19), qui est préréglée pour provoquer le glissement et le ralentissement d'une chaîne dentée d'une scie à chaîne qui pénètre dans les chaussures de sécurité (11), - au moins une couche interne (20) pour bloquer le mouvement de la chaîne.
EP15753171.6A 2014-06-24 2015-06-24 Garniture de sécurité pour chaussures de sécurité Withdrawn EP3160282A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD20140164 2014-06-24
PCT/IB2015/054738 WO2015198241A1 (fr) 2014-06-24 2015-06-24 Garniture de sécurité pour chaussures de sécurité

Publications (1)

Publication Number Publication Date
EP3160282A1 true EP3160282A1 (fr) 2017-05-03

Family

ID=51398766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15753171.6A Withdrawn EP3160282A1 (fr) 2014-06-24 2015-06-24 Garniture de sécurité pour chaussures de sécurité

Country Status (2)

Country Link
EP (1) EP3160282A1 (fr)
WO (1) WO2015198241A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1176574A (en) * 1967-06-09 1970-01-07 Uniroyal Ltd Improvements relating to Safety Footwear
US7992325B2 (en) * 2006-11-06 2011-08-09 Shew, Inc. Flexibly rigid personal protective equipment components
ES2360696B1 (es) * 2008-11-21 2012-01-19 Calzados Robusta, S.L Mejoras introducidas en la patente de invención p200400343 por protección metatarsiana para calzado de seguridad.
ITPD20120328A1 (it) * 2012-11-06 2014-05-07 Erredue Di Xodo Roberto Fodera di sicurezza per calzature antinfortunistica

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2015198241A1 *

Also Published As

Publication number Publication date
WO2015198241A1 (fr) 2015-12-30

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