EP1419708A1 - Vorrichtung zur elektrostatischen Entladung für Schuhsohle, Schuhsohle mit elektrostatischer Entladung und Verfahren zur elektrostatischen Entladung für Schuhsohle - Google Patents

Vorrichtung zur elektrostatischen Entladung für Schuhsohle, Schuhsohle mit elektrostatischer Entladung und Verfahren zur elektrostatischen Entladung für Schuhsohle Download PDF

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Publication number
EP1419708A1
EP1419708A1 EP03257221A EP03257221A EP1419708A1 EP 1419708 A1 EP1419708 A1 EP 1419708A1 EP 03257221 A EP03257221 A EP 03257221A EP 03257221 A EP03257221 A EP 03257221A EP 1419708 A1 EP1419708 A1 EP 1419708A1
Authority
EP
European Patent Office
Prior art keywords
electricity removing
static electricity
footwear bottom
face
sheet
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
EP03257221A
Other languages
English (en)
French (fr)
Other versions
EP1419708B1 (de
Inventor
Hirokazu Kimura
Kayo Toyoda
Masahiro c/o Morito Co. Ltd. Hasegawa
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.)
Osaka Prefecture
Morito Co Ltd
Original Assignee
Osaka Prefecture
Morito Co Ltd
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 Osaka Prefecture, Morito Co Ltd filed Critical Osaka Prefecture
Publication of EP1419708A1 publication Critical patent/EP1419708A1/de
Application granted granted Critical
Publication of EP1419708B1 publication Critical patent/EP1419708B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/28—Soles; Sole-and-heel integral units characterised by their attachment, also attachment of combined soles and heels
    • A43B13/36—Easily-exchangeable soles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/36—Footwear with health or hygienic arrangements with earthing or grounding means
    • 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
    • A43B3/163—Overshoes specially adapted for health or hygienic purposes, e.g. comprising electrically conductive material allowing the discharge of electrostatic charges
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements

Definitions

  • the present invention relates to a static electricity removing apparatus for incorporation in a footwear bottom to remove the static electricity generated between the footwear and the ground when walking by utilizing a corona discharge by conductive fibers, and to a footwear bottom having the static electricity removing function.
  • the footwear bottom Since the footwear bottom is a place severely rubbed with the ground, it becomes a great cause for generating the static electricity when walking. As a result, it follows that the static electricity is accumulated in the footwear bottom and, additionally, the whole human body is electrified by the static electricity. From such a viewpoint, it is very desirable that the electricity can be removed from the footwear bottom in order that the human body is not electrified.
  • the invention according to the prior art 1 is one in which the stainless fibers of the ground contacting portion of the footwear bottom attempt to damp the static electricity by a neutralization/reduction at tips of the conductive fibers regardless of the material of the floor-contacting face of the footwear bottom.
  • it since it is one which is used by being blended with a synthetic rubber and the like and is always in a ground contacting state, there has been a fear that the discharge is hindered by the fact that exposed faces of the conductive fibers are contaminated by contact with the ground.
  • the stainless fibers are blended with the synthetic rubber and the like, there is a high possibility that the blended material is inferior in comparison with the durability, the elasticity and the like possessed inherently by the synthetic rubber, so that a reduction in quality is brought about in relation to the feeling when wearing the footwear and the ease of walking.
  • the invention is one made in view of the above circumstances, and provides a static electricity removing apparatus and a static electricity removing footwear bottom, in each of which characteristics of a material of the footwear bottom, such as durability and elasticity, are not affected, and there is not brought about a reduction in electricity removing function owing to the fact that exposed faces of conductive fibers are contaminated.
  • a static electricity removing tool which comprises a basal plate having in its inner face an attaching means for a ground contacting face of a footwear bottom and a static electricity removing sheet in which a corona discharge is made an electricity removing means, and in which a concave portion deeper than a thickness of the static electricity removing sheet is formed in a ground contacting face of the basal plate, and a step difference concaved than the ground contacting face of the basal plate is formed in an outer face of the static electricity removing sheet by attaching the static electricity removing sheet to a bottom face of the concave portion through a bonding means; and a static electricity removing footwear bottom in which a step difference concaved than a ground contacting face of a footwear bottom is formed in an outer face of a static electricity removing sheet by forming a concave portion deeper than a thickness of the static electricity removing sheet in a ground contacting face of a footwear bottom and attaching a static electricity removing sheet, in which
  • a static electricity removing tool for footwear bottom of the invention since there is adopted the constitution in which, by attaching the static electricity removing sheet in which the corona discharge is made the electricity removing means to the bottom face of the concave portion deeper than the thickness of the static electricity removing sheet, the outer face of the static electricity removing sheet is concaved than the ground contacting face of the basal plate, it is possible to effectively neutralize the static electricity generated when walking and accumulated in the footwear bottom by the corona discharge of the static electricity removing sheet adjoining the footwear bottom, so that an excellent electricity removing effect can be obtained.
  • a removal of the static electricity can be simply performed merely by attaching the static electricity removing sheet to a bottom face of the footwear bottom.
  • the static electricity removing sheet is prevented from carelessly dropping, and the static electricity removing sheet can be protected from a contamination and the like.
  • the static electricity removing footwear bottom similarly to the above static electricity removing tool for footwear bottom, since there is adopted the constitution in which the outer face of the static electricity removing sheet is concaved than the ground contacting face of the basal plate by attaching the static electricity removing sheet in which the corona discharge is made the electricity removing means to the bottom face of the concave portion deeper than the thickness of the static electricity removing sheet, the static electricity generated when walking is neutralized by the corona discharge without the fact that the outer face of the static electricity removing sheet contacts with the ground, so that an excellent electricity removing effect can be obtained. Further, in the case where the sheet covering piece is formed in the concave portion edge of the footwear bottom and the outer face end portion of the static electricity removing sheet is covered by the sheet covering piece, it is possible to protect the static electricity removing sheet from the contamination and the like.
  • a static electricity removing apparatus for a footwear bottom comprises a plate-like urethane rubber basal plate 1 of about 4 mm in thickness, which mainly approximates to an ellipse whose major axis is about 105 mm and whose minor axis is about 65 mm, and a nonwoven fabric-like static electricity removing sheet 2, of about 1.5 mm in thickness t, consisting of very fine conductive fibers.
  • concave portions 11, of about 2.5 mm in depth m, for fitting the static electricity removing sheet 2 are formed in three places in a ground contacting face 10 of the basal plate 1.
  • a pressure sensitive adhesive double coated tape 5 of about 0.3 mm in thickness, and a release coated paper 6.
  • the pressure sensitive adhesive double coated tape 5 acts as means for attaching the static electricity removing apparatus for footwear bottom to a footwear bottom 7.
  • the three static electricity removing sheets 2 from which release coated papers have been peeled are adhered to the bottom faces 12 of the concave portions 11 at three places of the basal plate 1 by pressure sensitive adhesive double coated tapes 41 of 0.3 mm in thickness.
  • a step difference 40 such that the outer face 20 is concaved below the ground contacting face 10 of the basal plate 1.
  • the static electricity removing sheet 2 does not contact with the ground when wearing by the fact that the step difference 40 is formed, the exposed faces of the conductive fibers can be prevented from being contaminated when walking.
  • the static electricity can be removed by the fact that the corona discharge is generated from the outer face 20 of the static electricity removing sheet 2 toward the footwear bottom to thereby electrically neutralize the footwear bottom.
  • the static electricity removing sheet 2 in the embodiment 1 it is possible to use, for example, a nonwoven fabric consisting of organic conductive fibers (trademark: THUNDERON) in which surfaces of acrylic fibers are covered by coatings of copper sulfide.
  • a nonwoven fabric consisting of organic conductive fibers (trademark: THUNDERON) in which surfaces of acrylic fibers are covered by coatings of copper sulfide.
  • a static electricity removing apparatus for a footwear bottom has the same basic constitution as that of embodiment 1, i.e., it comprises a basal plate 1 having on its inner face 13 the pressure sensitive adhesive double coated tape 5 as an attaching means for a ground contacting face 70 of a footwear bottom 7 and the nonwoven fabric-like static electricity removing sheet 2 consisting of very fine conductive fibers.
  • the concave portion 11 whose depth dimension m is larger than the thickness t of the static electricity removing sheet 2 is formed in the ground contacting face 10 of the basal plate 1.
  • the static electricity removing sheet 2 is attached to the bottom face 12 of the concave portion 11 through the pressure sensitive adhesive double coated tape 41, and around the outer face 20 of the static electricity removing sheet 2 there is formed the step difference 40 concaved into the ground contacting face 10 of the basal plate 1.
  • a flange 15 projects in from the edge 14 of the concave portion 11, and an edge 21 of the outer face 20 of the static electricity removing sheet 2 is covered by the flange 15.
  • the flange 15 projects in from the edge 14 of the concave portion 11 and the edge 21 of the outer face 20 of the static electricity removing sheet 2 is covered by the flange 15, the static electricity removing sheet 2 is prevented from accidentally dropping out, the static electricity removing sheet 2 is protected from contamination and the like when walking, the ground contacting area of the static electricity removing apparatus for footwear bottom is increased in comparison with the static electricity removing apparatus for footwear bottom according to the embodiment 1, and the gripping force with respect to the ground is increased.
  • the position can be simply changed in compliance with a wearer's taste by exchanging only the pressure sensitive adhesive double coated tape 5.
  • a static electricity removing footwear bottom 3 according to an embodiment 3 of the invention is one using, as the static electricity removing sheet 2, the nonwoven fabric consisting of organic conductive fibers (trademark: THUNDERON) in which surfaces of acrylic fibers are covered by coatings of copper sulfide similar to the static electricity removing apparatus 4 according to the embodiment 1 and the embodiment 2, and is one having a constitution in which concave portions 31 of a depth dimension of 2.5 mm deeper than the thickness 1.5 mm of the static electricity removing sheet 2 are formed in three places in a ground contacting face 30 of the static electricity removing footwear bottom 3.
  • the static electricity removing sheet 2 the nonwoven fabric consisting of organic conductive fibers (trademark: THUNDERON) in which surfaces of acrylic fibers are covered by coatings of copper sulfide similar to the static electricity removing apparatus 4 according to the embodiment 1 and the embodiment 2, and is one having a constitution in which concave portions 31 of a depth dimension of 2.5 mm deeper than the thickness 1.5 mm of the static electricity removing sheet 2
  • a step difference 34 concaved below the ground contacting face 30 of the footwear bottom 3 is formed by attaching the static electricity removing sheet 2 to a bottom face 32 of the concave portion 31 by a pressure sensitive adhesive double coated tape 33.
  • a flange 36 extends in from an edge 35 of the concave portion 31 in a manner similar to that of embodiment 2, and the edge portion 21 of the static electricity removing sheet 2 is covered by the flange 36.
  • the static electricity removing footwear bottom 3 according to the embodiment 3 by causing it to have a function similar to the static electricity removing apparatus 4 according to the embodiments 1 and 2, it is possible to ensure an ability for neutralizing and removing the static electricity by the corona discharge.
  • the sheet 2 in the footwear bottom there is no fear that the electricity removing means drops off the footwear bottom and, additionally, the durability can be increased.
  • the disposition of the concave portions in the static electricity removing apparatus for footwear bottom and the static electricity removing footwear bottom of the invention it is not limited only to one having the concave portions in three places shown in the embodiment 1 to the embodiment 3 and, as shown in Fig.8 and Fig.9, it can be also made, for example, into many circular concave portions, plural band-like concave portions and the like.
  • the static electricity removing sheet 2 which is thinner than a depth of the groove 81 and in which the corona discharge can occur.
  • the nonwoven fabric consisting of organic conductive fibers (trademark: THUNDERON) in which surfaces of acrylic fibers are covered by coatings of copper sulfide, but it is not necessarily limited to this.
  • organic conductive fibers trademark: SOLDION
  • SOLDION like conductive fibers whose basic materials are polyethylene terephthalate cotton, pulp and carbon and in which conductive substances are mixed, and like carbon fibers, etc., if the fibers are ones which can obtain the electricity removing effect by the corona discharge, may also be used.
  • the construction comprises the basal plate 1 having on its inner face 13 the attaching means for the ground contacting face 70 of the footwear bottom 7 and the static electricity removing sheet 2 in which the corona discharge is made (the electricity removing means) is formed in the ground contacting face 10 of the basal plate 1, and the concave portion 11 is deeper than the thickness of the static electricity removing sheet, and the step difference concaved below the ground contacting face 10 of the basal plate 1 is formed above the outer face 20 of the static electricity removing sheet 2 by attaching the static electricity removing sheet 2 to the bottom face 12 of the concave portion 11 through the bonding means.
  • the benefit also applies to the construction in which the step difference 34 concaved below the ground contacting face 30 of the footwear bottom 3 is formed above the outer face 20 of the static electricity removing sheet 2 by forming the concave portion 31 deeper than the thickness of the static electricity removing sheet 2 in the ground contacting face of the footwear bottom 3 and attaching the static electricity removing sheet 2, so that the corona discharge is made by the electricity removing means, to the bottom face 32 of the concave portion 31 through the bonding means.
  • the benefit also applies to the construction in which, to the groove 81 previously formed in the ground contacting face 80 of the footwear bottom 8, there is attached the static electricity removing sheet 2, which is thinner than the depth of the groove 81 and in which the corona discharge is made by the electricity removing means, to thereby bring about the state that the outer face 20 of the static electricity removing sheet 2 is concaved below the ground contacting face. Since the static electricity removing sheet 2 does not contact with the ground, the feeling experienced by the wearer is not adversely affected irrespective of the degree of hardness of the static electricity removing sheet 2 and, because the static electricity removing sheet is positioned so as to form the space in the vicinity of the footwear bottom, the static electricity removing sheet is not contaminated and is not abraded.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Elimination Of Static Electricity (AREA)
EP03257221A 2002-11-15 2003-11-17 Vorrichtung zur elektrostatischen Entladung für Schuhsohle, Schuhsohle mit elektrostatischer Entladung und Verfahren zur elektrostatischen Entladung für Schuhsohle Expired - Lifetime EP1419708B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002331544 2002-11-15
JP2002331544A JP3915095B2 (ja) 2002-11-15 2002-11-15 履物底用静電気除去具及び静電気除去履物底

Publications (2)

Publication Number Publication Date
EP1419708A1 true EP1419708A1 (de) 2004-05-19
EP1419708B1 EP1419708B1 (de) 2006-08-02

Family

ID=32171402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03257221A Expired - Lifetime EP1419708B1 (de) 2002-11-15 2003-11-17 Vorrichtung zur elektrostatischen Entladung für Schuhsohle, Schuhsohle mit elektrostatischer Entladung und Verfahren zur elektrostatischen Entladung für Schuhsohle

Country Status (7)

Country Link
US (1) US20040128864A1 (de)
EP (1) EP1419708B1 (de)
JP (1) JP3915095B2 (de)
KR (1) KR20040042891A (de)
CN (1) CN1505996A (de)
DE (1) DE60307201D1 (de)
TW (1) TW200412869A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2535082C2 (ru) * 2013-03-21 2014-12-10 ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ УЧРЕЖДЕНИЕ ВСЕРОССИЙСКИЙ НАУЧНО-ИССЛЕДОВАТЕЛЬСКИЙ И ИСПЫТАТЕЛЬНЫЙ ИНСТИТУТ МЕДИЦИНСКОЙ ТЕХНИКИ ФЕДЕРАЛЬНОЙ СЛУЖБЫ ПО НАДЗОРУ В СФЕРЕ ЗДРАВООХРАНЕНИЯ (ФГБУ "ВНИИИМТ" Росздравнадзора) Лечебно-диагностическое устройство для снятия избыточного статического электричества у человека и животных "мохсогол"
US20190183210A1 (en) * 2016-08-30 2019-06-20 Ansell Limited Conductive soles for protective suits

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112005001788T5 (de) * 2004-07-28 2007-06-06 Morito Co., Ltd. Fußbekleidung bzw. Schuhwerk, welche(s) eine eine statische Aufladung eliminierende Funktion trägt
US7373739B2 (en) * 2005-12-21 2008-05-20 Brown Shoe Company, Inc. Shoe sole having fabric and method for adhering fabric to shoe sole
WO2009091236A1 (en) * 2008-01-18 2009-07-23 Kek Hing Kow An electrostatic discharge shoe cover
WO2013029222A1 (en) * 2011-08-26 2013-03-07 Esd Technology Consulting & Licensing Co., Ltd Method and structure for reducing body static voltage
USD780415S1 (en) * 2016-01-11 2017-03-07 Nike, Inc. Shoe outsole

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993932A (en) * 1976-01-16 1976-11-23 Weigl John W Antistatic footwear
FR2343438A1 (fr) * 1976-03-11 1977-10-07 Huth Walter Chaussure a semelle antistatique, notamment chaussure de travail ou de securite et procede pour sa fabrication
EP1186403A1 (de) * 2000-09-07 2002-03-13 Suolificio Romagnolo SNC Verfahren zur Herstellung thermoplastischer Schuhen die permanent statische Elektrizität entladen
EP1203539A1 (de) * 2000-11-03 2002-05-08 Novel Worldwide Trading Co., Ltd. Antistatische Schuhsohle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993932A (en) * 1976-01-16 1976-11-23 Weigl John W Antistatic footwear
FR2343438A1 (fr) * 1976-03-11 1977-10-07 Huth Walter Chaussure a semelle antistatique, notamment chaussure de travail ou de securite et procede pour sa fabrication
EP1186403A1 (de) * 2000-09-07 2002-03-13 Suolificio Romagnolo SNC Verfahren zur Herstellung thermoplastischer Schuhen die permanent statische Elektrizität entladen
EP1203539A1 (de) * 2000-11-03 2002-05-08 Novel Worldwide Trading Co., Ltd. Antistatische Schuhsohle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2535082C2 (ru) * 2013-03-21 2014-12-10 ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ УЧРЕЖДЕНИЕ ВСЕРОССИЙСКИЙ НАУЧНО-ИССЛЕДОВАТЕЛЬСКИЙ И ИСПЫТАТЕЛЬНЫЙ ИНСТИТУТ МЕДИЦИНСКОЙ ТЕХНИКИ ФЕДЕРАЛЬНОЙ СЛУЖБЫ ПО НАДЗОРУ В СФЕРЕ ЗДРАВООХРАНЕНИЯ (ФГБУ "ВНИИИМТ" Росздравнадзора) Лечебно-диагностическое устройство для снятия избыточного статического электричества у человека и животных "мохсогол"
US20190183210A1 (en) * 2016-08-30 2019-06-20 Ansell Limited Conductive soles for protective suits
US10897955B2 (en) * 2016-08-30 2021-01-26 Ansell Limited Conductive soles for protective suits

Also Published As

Publication number Publication date
US20040128864A1 (en) 2004-07-08
JP2004160043A (ja) 2004-06-10
CN1505996A (zh) 2004-06-23
DE60307201D1 (de) 2006-09-14
TW200412869A (en) 2004-08-01
KR20040042891A (ko) 2004-05-20
JP3915095B2 (ja) 2007-05-16
EP1419708B1 (de) 2006-08-02

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