EP0900532A2 - Dichter Verschluss - Google Patents

Dichter Verschluss Download PDF

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Publication number
EP0900532A2
EP0900532A2 EP98810534A EP98810534A EP0900532A2 EP 0900532 A2 EP0900532 A2 EP 0900532A2 EP 98810534 A EP98810534 A EP 98810534A EP 98810534 A EP98810534 A EP 98810534A EP 0900532 A2 EP0900532 A2 EP 0900532A2
Authority
EP
European Patent Office
Prior art keywords
teeth
hems
fastener according
elastic
slide
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
EP98810534A
Other languages
English (en)
French (fr)
Other versions
EP0900532B1 (de
EP0900532A3 (de
Inventor
Sergio Bernasconi
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.)
Crelux Holding SA
Original Assignee
Riri SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4210379&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0900532(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Riri SA filed Critical Riri SA
Publication of EP0900532A2 publication Critical patent/EP0900532A2/de
Publication of EP0900532A3 publication Critical patent/EP0900532A3/de
Application granted granted Critical
Publication of EP0900532B1 publication Critical patent/EP0900532B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/32—Means for making slide fasteners gas or watertight

Definitions

  • the present invention relates to the sector of fasteners, also called “zip fasteners”, and more particularly to those which must provide a fluid-tight closure, namely form a barrier which prevents the passage of fluids (liquids or gases) exerting a given pressure.
  • these fasteners join together two hems of fabric or other impermeable material by connecting two facing rows of teeth arranged in between one another and mechanically connected by means of the action of a slide, and the fluid-tight seal is obtained by arranging the said two hems next to one another by means of closing of the fastener and by exerting a predetermined compressive force on them; since the hems are made of elastic material, they thus create a linear fluid-tight seal along the entire length of the fastener.
  • the said two hems which possess a certain degree of elasticity are arranged on top of one another and a pressure is exerted on them perpendicular thereto owing to closing of the fastener.
  • This system has some significant limitations and major functional drawbacks, including the fact that closing of the fastener must exert a considerable compressive preloading force on the said hems, with accentuated elastic yielding thereof capable of ensuring the fluid-tight seal even when a predetermined pulling force, tending to separate them from one another, is exerted on the two hems; in view of the geometrical configuration of the fastener and the necessary - albeit small - amount of play between the various teeth, a pulling force in the direction described always causes a given relative rotation of them which tends to separate the compressed hems, reducing the compressive (and hence sealing) force acting on them.
  • the said elastic yielding effect should be of a magnitude such as to ensure the desired fluid-tight seal even in the presence of the said relative rotation of the teeth and a certain elastic return movement of the two superimposed hems.
  • the inventor of the present invention has devised a fastener with specially shaped teeth divided into two parts which rest on opposite sides of the hem onto which they are applied and which contain inside them an elastic cord which extends at least over the whole length of the fastener.
  • the two cords of the two rows of opposite teeth are arranged next to one another frontally and compressed to a given degree as a result of closing of the fastener performed by the slide.
  • the force required for operation of the fastener is very light, and the fastener itself, when closed, has the dimensions and the aesthetic appearance of a normal fastener.
  • the subject of the present invention consists of a fastener according to the preamble of the accompanying Claim 1 characterized by the technical characteristics described in the characterizing part of the same claim.
  • the fasteners according to the state of the art, as already explained, superimpose the two hems 103, 104 of impermeable fabric to be joined together by arranging them against one another and exerting a compressive force on the superimposed portion as a result of the closing action performed by the slide (not shown).
  • the fastener 101 is sensitive to the action of forces F which tend to move the two hems apart since the teeth 102 engaged together tend to rotate with respect to one another, diminishing the magnitude of the elastic compressive force acting on the hems to be joined together.
  • the fastener moreover, when it is closed, forms an aesthetically unattractive bead which is raised with respect to the flat walls of the hems of impermeable fabric.
  • the fastener 1 is composed of two facing rows of teeth 2 which are formed as can be seen in Figure 2; each of them consists of two parts 2a, 2b which are connected together and arranged on opposite sides of one of the two hems 3, 4 made of fabric or other impermeable material and accommodates internally a cord 5 (see Figure 3) of elastic material (for example neoprene) arranged in an intermediate position between the said two parts 2a, 2b.
  • a cord 5 see Figure 3 of elastic material (for example neoprene) arranged in an intermediate position between the said two parts 2a, 2b.
  • cords 5 located between the teeth 2 of the two facing rows which are connected in a known manner by a slide of the conventional type (not shown) are coplanar and are dimensioned and arranged so as to be compressed and rest frontally against one another when the abovementioned teeth 2 are connected together by the said slide, as shown in Figure 3.
  • the force required to compress the two cords 5 arranged opposite one another frontally is very low and consequently the force to be exerted on the slide in order to perform closing (and opening) of a fastener 1 according to the invention is also very small.
  • the inventor of the present invention has envisaged shaping the cords 5 with a section which is tapered with a predetermined convergence closed by a rounded portion in the zones where they frontally come into contact when the fastener 1 is closed.
  • the said rounded section has the effect of increasing the pressure which is exchanged between the cords for the same compressive force acting on them, therefore reducing the latter and ensuring elastic deformation of the contact zones sufficient to create a reliable fluid-tight seal capable of preventing the infiltration of fluids exerting a pressure even greater than 2 bar.
  • the said two parts 2a, 2b forming a tooth 2 are connected together by a connecting element 6 which is fixed integrally to them and which passes through the elastic cord 5 and the hem of fabric or other impermeable material 3 arranged on top of one another (it obviously being necessary to form suitable holes in them for this purpose).
  • Each tooth 2 exerts its action on a shoulder 5s of the cord 5 by means of an abutting element 2t.
  • the inventor in order to distribute radially in a uniform manner over the whole length of the cord 5 itself the pressure exerted by the said abutting elements 2t, has envisaged shaping, in a substantially cylindrical manner with a suitable curvature, the portion of each of the abutting elements 2t which is in contact with the cord 5.
  • the teeth 2, according to a preferred embodiment, are made of synthetic resin and may be formed as one piece, already connected to the cord 5 and to the hem 3, 4 of fabric, by means of injection moulding.
  • the construction of the fluid-tight fastener using synthetic resin offers, moreover, the advantages of a reduced weight and a high resistance to the corrosive action of aggressive physical or chemical elements.
  • FIG. 4 A plan view of a portion of the fastener according to the invention is shown in Figure 4.
  • the two elastic cords 5 contained in a fastener 1 according to the invention advantageously extend beyond the end of the two rows of teeth 2 over a predetermined length so as to form a fluid-tight closing stop which can be realized by the compression exerted on them by the said slide when it brings them together, travelling an additional distance with respect to that which it must cover in order to perform closing of the fastener.
  • the fastener prefferably be provided with means which are connected to it, or to the hems of impermeable fabric, and which are designed to be reversibly inserted so as to keep the slide fixed in the position in which it is located when it has realized the closing stop in question.
  • these means which are already essentially known, may consist of fixed parts which can be connected to the pull-piece of the slide.
  • the said closing stop and the means for fixing the slide are not shown in the drawings.
  • a further advantage provided by the fluid-tight fastener according to the invention consists in the fact that, for its operation, the hems of impermeable fabric which are to be joined together need not consist of a material which is elastic upon compression, since the seal is not produced by compressing the hems themselves, but the said elastic cords which are connected to the said hems.
  • the preferred exemplary embodiment described hitherto and shown in the drawings is neither binding nor limiting in respect of other embodiments which may be obtained by referring to that which is stated in the accompanying claims: these embodiments also fall within the scope of protection defined by the present patent application.

Landscapes

  • Slide Fasteners (AREA)
  • Building Environments (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
EP98810534A 1997-06-12 1998-06-11 Mit Dichtung versehener Reissverschluss Expired - Lifetime EP0900532B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH01434/97A CH693602A5 (it) 1997-06-12 1997-06-12 Cerniera a tenuta stagna.
CH143497 1997-06-12
CH1434/97 1997-06-12

Publications (3)

Publication Number Publication Date
EP0900532A2 true EP0900532A2 (de) 1999-03-10
EP0900532A3 EP0900532A3 (de) 1999-04-07
EP0900532B1 EP0900532B1 (de) 2002-03-27

Family

ID=4210379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98810534A Expired - Lifetime EP0900532B1 (de) 1997-06-12 1998-06-11 Mit Dichtung versehener Reissverschluss

Country Status (5)

Country Link
EP (1) EP0900532B1 (de)
CH (1) CH693602A5 (de)
DE (1) DE69804393T2 (de)
ES (1) ES2172107T3 (de)
IT (1) IT1293080B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002003825A1 (en) * 2000-07-11 2002-01-17 Riri S.A. Sealing slide fastener with teeth welded onto the tapes which they join
WO2003037132A2 (de) 2001-10-23 2003-05-08 Hartmut Ortlieb Wasserdichter reissverschluss
WO2021185397A1 (de) 2020-03-20 2021-09-23 Hartmut Ortlieb DICHTENDER, WASSERDICHTER REIßVERSCHLUSS SOWIE VERFAHREN ZU SEINER HERSTELLUNG

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910754A (en) * 1953-01-13 1959-11-03 Louis H Morin Watertight separable fasteners
US3798714A (en) * 1972-05-18 1974-03-26 Textron Inc Flange-lock slider
GB2047334A (en) * 1979-04-26 1980-11-26 Yoshida Kogyo Kk Sealing slide fastener stringer
US4308644A (en) * 1978-12-14 1982-01-05 Brown Alexander M Sealing zipper
EP0108214A1 (de) * 1982-09-09 1984-05-16 Yoshida Kogyo K.K. Wasserdichter Reissverschluss
EP0522366A1 (de) * 1991-06-28 1993-01-13 Ykk Corporation Wasserdichter Reissverschluss

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910754A (en) * 1953-01-13 1959-11-03 Louis H Morin Watertight separable fasteners
US3798714A (en) * 1972-05-18 1974-03-26 Textron Inc Flange-lock slider
US4308644A (en) * 1978-12-14 1982-01-05 Brown Alexander M Sealing zipper
GB2047334A (en) * 1979-04-26 1980-11-26 Yoshida Kogyo Kk Sealing slide fastener stringer
EP0108214A1 (de) * 1982-09-09 1984-05-16 Yoshida Kogyo K.K. Wasserdichter Reissverschluss
EP0522366A1 (de) * 1991-06-28 1993-01-13 Ykk Corporation Wasserdichter Reissverschluss

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002003825A1 (en) * 2000-07-11 2002-01-17 Riri S.A. Sealing slide fastener with teeth welded onto the tapes which they join
AU2000254221B2 (en) * 2000-07-11 2006-08-10 Riri Group S.A. Sealing slide fastener with teeth welded onto the tapes which they join
EP1707066A1 (de) * 2000-07-11 2006-10-04 Riri S.A. Gas- und wasserdichter Reissverschluss, bei welchem die Zähne auf dem Tragband aufgeschweisst sind
CN1330266C (zh) * 2000-07-11 2007-08-08 克雷卢克斯控股公司 带有结合在由其连接的带子上的齿的密封滑动紧固件
US7441312B2 (en) 2000-07-11 2008-10-28 Riri Group S.A. Sealing slide fastener with teeth welded onto the tapes which they join
WO2003037132A2 (de) 2001-10-23 2003-05-08 Hartmut Ortlieb Wasserdichter reissverschluss
WO2021185397A1 (de) 2020-03-20 2021-09-23 Hartmut Ortlieb DICHTENDER, WASSERDICHTER REIßVERSCHLUSS SOWIE VERFAHREN ZU SEINER HERSTELLUNG
DE102020001847A1 (de) 2020-03-20 2021-09-23 Hartmut Ortlieb Dichtender, Wasserdichter Reißverschluss sowie Verfahren zu seiner Herstellung

Also Published As

Publication number Publication date
DE69804393T2 (de) 2002-12-19
IT1293080B1 (it) 1999-02-11
ITRM970405A1 (it) 1999-01-07
DE69804393D1 (de) 2002-05-02
ES2172107T3 (es) 2002-09-16
EP0900532B1 (de) 2002-03-27
CH693602A5 (it) 2003-11-14
ITRM970405A0 (de) 1997-07-07
EP0900532A3 (de) 1999-04-07

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