EP0223905B1 - Sceau de sécurité de type cadenas - Google Patents

Sceau de sécurité de type cadenas Download PDF

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Publication number
EP0223905B1
EP0223905B1 EP86106624A EP86106624A EP0223905B1 EP 0223905 B1 EP0223905 B1 EP 0223905B1 EP 86106624 A EP86106624 A EP 86106624A EP 86106624 A EP86106624 A EP 86106624A EP 0223905 B1 EP0223905 B1 EP 0223905B1
Authority
EP
European Patent Office
Prior art keywords
leg
shackle
aperture
seal
laterally extending
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.)
Expired - Lifetime
Application number
EP86106624A
Other languages
German (de)
English (en)
Other versions
EP0223905A1 (fr
Inventor
Allan W. Swift
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.)
EJ Brooks Co
Original Assignee
EJ Brooks Co
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 EJ Brooks Co filed Critical EJ Brooks Co
Publication of EP0223905A1 publication Critical patent/EP0223905A1/fr
Application granted granted Critical
Publication of EP0223905B1 publication Critical patent/EP0223905B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/03—Forms or constructions of security seals
    • G09F3/0305—Forms or constructions of security seals characterised by the type of seal used
    • G09F3/0347—Forms or constructions of security seals characterised by the type of seal used having padlock-type sealing means
    • G09F3/0358—Forms or constructions of security seals characterised by the type of seal used having padlock-type sealing means using a rigid hasp lock

Definitions

  • a prior art shackle that is of interest is disclosed in US-A-3 838 878. It discloses wire shackle for assembly into a seal body of the type having a pair spaced rectangle apertures, said wire having a diameter which is substantially the same as the width of the apertures into which it is to be assembled and being generally U-shaped forming a pair of legs for entering one into each of said apertures.
  • Each of the legs has a reversely bent end portion which is dimensioned to be flexed towards its associated leg when inserted into the aperture. The extreme end of said reversely bent portion is sufficiently sharp to penetrate the material of the seal body if attempts are made to pull it out of the seal body once it has been installed therein.
  • Each leg has an obliquely extending portion that traverses across the cross section of the aperture into which it extends and thereafter it continues along the wall surface with which it is then in engagement before reaching said reversely bent end portion.
  • a further prior art is that disclosed in EP-A-0 211 499, published 8.4.1987, in which the seal body has a pair of spaced rectangular apertures for receiving a U-shaped wire shackle defining two legs, one leg for each of said spaced apertures.
  • Each leg has a reversely bent portion at its free end, the resulting terminal end of each reversely bent portion being such than it is inclined towards a central land portion in the sealing body that serves to divide the sealing body into said pair of rectangular apertures.
  • the central land portion is formed on each side with a shoulder with which, when said arms have been fully inserted into the seal body, said terminal ends of the two legs engage to prevent the wire shackle from being withdrawn from the seal body.
  • the seal body has two entrance openings, one for each shackle leg, and each of these openings is of a length sufficient to allow said reversely bent portion of the related shackle leg to pass therethrough.
  • the arrangement is such that the way is clear for a tool to be inserted into said openings and for the tool to enter the seal body until it is in engagement with the inner root surface of a reversely bent portion of a shackle leg.
  • the seal body has special built up surfaces on its inside to block any such release movement of a reversely bent end portion.
  • This invention provides a security seal of the padlock type, in which a plastic body is provided with, in one embodiment, a pair of internal cavities opening to one end of the body, and a wire shackle having legs with reverse bent end portions for locking the legs in the shackle cavities.
  • each shackle leg is provided with a bend forming a tool blocking portion which extends completely across the cavity, said bend being positioned on the legs to become positioned just below the surface of the housing when the shackle is fully assembled and having a portion extending substantially perpendicular from the leg.
  • Such bend might be straightened by pulling on the shackle leg with a pair of pliers or the like, after which such a tool could be inserted.
  • the extreme ends of the reversely bent portion may be sharpened, and the seal body may be provided with a groove so positioned that when a shackle leg is pulled in an attempt to straighten the wire, the ends of the reversely bent portions pierce the plastic body and extend into the groove, where they are clearly visible.
  • Figure 1 is a view in elevation of a seal embodying the features of the invention, in the condition as received by the user.
  • Figure 2 is a view of the seal of Figure 1, partly in section to show the internal cavities of the seal body.
  • Figure 3 is a view in elevation of the seal of Figures 1 and 2 in which the shackle has been pushed into the body into the locking position.
  • Figure 4 is a view in section taken on line 4-4 of Figure 3.
  • Figure 5 is a view in section taken on line 5-5 of Figure 3.
  • Figure 6 is a view of the assembled seal of Figure 3, after a shackle leg has been pulled to partially straighten the bent portion of the leg.
  • seal 10 of the padlock type comprising a plastic seal body 12 and a shackle 14 formed of spring wire.
  • the body 12 is provided with a pair of spaced apertures 16 and 18 which extend into the body from the top surface 20 thereof, and a pair of grooves 22, 23, disposed on opposite sides of the body, said grooves being positioned generally medially between the apertures.
  • the shackle 14 is generally Ushaped forming a long leg 24 and a short leg 26, the legs having bights 28 and 30 forming reversely bent end portions 32 and 34, the reversely bent end portions having extreme ends 36 and 38 which are provided with sharpened ends 36 and 38 by being cut at an angle for a purpose to appear hereinafter.
  • the apertures 16 and 18 have a width substantially the same as the diameter of the wire of which the shackle 14 is made, and a length such that when the ends of the shackle legs are pushed into the apertures, the reversely bent end portions 32, 34 are maintained in a flexed condition so that the sharpened ends 36, 38, bear against the inner walls 40 and 42 of apertures 16 and 18 respectively.
  • the seal 10 is normally supplied to the user with the long leg 24 inserted into the aperture 18 and the bight 30 of the shorter leg projecting into the aperture 16, but not so far that the end 38 of the short leg has entered the aperture, (see Figure 1) so that the short leg may be easily removed from the aperture to enable the shackle leg to be passed through a staple 44 or the like of an article to be sealed.
  • the bight 30 may be re-inserted into the aperture 16, and both legs pushed into the body so that both reversely bent ends are flexed by engagement with the end walls of the aperture. (See Figure 3).
  • the width of the apertures 16, 18, is substantially the same as the diameter of the wire of which the shackle is made and about the same width as that of the strip 46 of material disposed between the grooves 20, 22, to provide a firm support for the pressure of the ends 36, 38, to prevent the pressure of the end of the leg against the plastic from breaking through the aperture wall under conditions of elevated temperature.
  • seals of this general type might be defeated by the insertion of a suitable tool, such as a thin piece of steel, into one of the apertures between the leg and the outside wall of the aperture.
  • a suitable tool such as a thin piece of steel
  • the leg might be forced toward the inner wall, which could tend to flatten the reverse bend portion against said opposite wall.
  • the tool could be removed and the leg could then be drawn out of the aperture without the sharp end of the shackle catching on the inner wall of the aperture, and without leaving evidence of tampering.
  • each leg of the shackle is provided with a laterally inwardly extending U-shaped protrusion 50 formed by a first leg portion 52, a substantially U-shaped bend 54, and a second leg portion 56.
  • the first or upper leg portion 52 of the U-shaped portion is substantially perpendicular to the shackle leg from which it is formed.
  • the second leg portion 54 of the U-shaped lateral protrusion is inclined slightly downwardly, however this leg also could be perpendicular to the shackle leg, if such shape could be provided by the wire bending machinery used to manufacture the shackle.
  • the protrusion has dimensions such that it completely spans the aperture and fits tightly between the sidewalls thereof.
  • a lateral extension in the shackle leg is shown in U.S. patent 3,375,033 to Moberg.
  • the extension shown in Moberg does not completely fill the aperture, and due to the fact that the legs of the lateral extension (not numbered) in Moberg are both inclined at a substantial angle to the side wall of the aperture, it would be possible for a tool to be inserted to first flatten the Moberg protrusion, and then a second thicker tool could be used to force the bight against the inner wall of the aperture to increase the amount bend in said bight for the purpose previously described.
  • the ends 36, 38 of the reversely bent ends are preferably beveled at an angle and in a direction such that when tension is applied to the legs, the ends will pierce the walls 40, 42 at the inner ends of the apertures, and the bevel on the ends will tend to force the ends outwardly so that they enter the groove at or about the corner of the aperture against which the sharp edge of the bevel is bearing.
  • one shackle leg may be permanently attached to the body in some other manner, in which case only one aperture and one locking shackle may be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Package Frames And Binding Bands (AREA)
  • Burglar Alarm Systems (AREA)

Claims (5)

  1. Fermeture du type cadenas, comprenant :
    un corps de fermeture et un arceau en fil; le corps de fermeture possédant au moins une ouverture (16, 18) destinée à recevoir une branche de l'arceau, ladite branche possédant une partie d'extrémité (32, 34) repliée en arrière, ladite ouverture ayant une largeur sensiblement égale au diamètre du fil, et le fil ayant une partie (52) orientée latéralement sur la branche de l'arceau, ladite partie orientée latéralement étant dimensionnée et positionnée sur la branche de l'arceau de telle manière que, lorsqu'on enfonce la branche dans ladite ouverture pour qu'elle soit en prise verrouillée avec le corps de fermeture, ladite partie (52) orientée latéralement se trouve à l'intérieur du corps de fermeture et obstrue entièrement la section transversale de ladite ouverture du corps de fermeture ; caractérisée en ce que la partie (52) orientée latéralement possède une partie qui s'étend sensiblement perpendiculairement à la partie de la branche de l'arceau d'où elle part.
  2. Fermeture selon la revendication 1, dans laquelle ladite partie orientée latéralement est formée par un coude (50) de la branche de l'arceau qui est sensiblement en forme de U.
  3. Fermeture selon la revendication 2, dans laquelle la branche (52) du coude (50) sensiblement en forme de U qui est la plus éloignée de la partie (32, 34) repliée en arrière est sensiblement perpendiculaire à la branche de l'arceau dans laquelle elle est formée.
  4. Fermeture selon la revendication 1, comprenant une paire d'ouvertures rectangulaires espacées (16, 18) et dans laquelle ledit arceau est sensiblement en forme de U et forme une paire de branches (24, 26) destinées à s'engager dans lesdites ouvertures (16, 18), chacune desdites branches (24, 26) ayant une partie d'extrémité repliée en arrière (32, 34) qui est dimensionnée de façon à se resserrer vers sa branche respective lorsqu'elle est insérée dans une ouverture respective, l'extrémité finale de ladite partie repliée en arrière étant suffisamment pointue pour mordre dans la matière du corps de fermeture dans laquelle elle doit être engagée, lorsqu'une force de traction notable est ensuite appliquée à une branche engagée, chacune desdites branches (24, 26) portant un élément d'obstruction de l'ouverture, orienté latéralement, qui fait saillie sur cette branche, ledit élément d'obstruction possédant une dimension latérale (52) qui est sensiblement égale à la dimension correspondante de l'ouverture dans laquelle elle doit être insérée, et étant positionnée sur la branche de telle manière que, lorsque la branche est enfoncée dans le corps de fermeture jusqu'à la position entièrement insérée, l'élément d'obstruction orienté latéralement soit disposé à l'intérieur de l'ouverture et s'étende sensiblement perpendiculairement à la partie de la branche de l'arceau sur laquelle elle fait saillie.
  5. Fermeture selon la revendication 4, dans laquelle chacun desdits éléments d'obstruction de l'ouverture appartenant à l'arceau et orienté latéralement est formé par un coude (50) sensiblement en U de la branche respective, disposé au-dessus de ladite partie repliée en arrière, ledit coude en U formant deux branches orientées latéralement, dont au moins une (52) est sensiblement perpendiculaire à la branche correspondante.
EP86106624A 1985-11-21 1986-05-15 Sceau de sécurité de type cadenas Expired - Lifetime EP0223905B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80045785A 1985-11-21 1985-11-21
US800457 1985-11-21

Publications (2)

Publication Number Publication Date
EP0223905A1 EP0223905A1 (fr) 1987-06-03
EP0223905B1 true EP0223905B1 (fr) 1991-10-16

Family

ID=25178448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86106624A Expired - Lifetime EP0223905B1 (fr) 1985-11-21 1986-05-15 Sceau de sécurité de type cadenas

Country Status (7)

Country Link
EP (1) EP0223905B1 (fr)
AU (1) AU568981B2 (fr)
BR (1) BR8602546A (fr)
CA (1) CA1319811C (fr)
DE (1) DE3682028D1 (fr)
ES (1) ES294709U (fr)
ZA (1) ZA863609B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8149114B2 (en) 2010-02-09 2012-04-03 Ekstrom Industries, Inc. Utility meter tamper monitoring system and method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9201127A (pt) * 1992-03-31 1993-10-05 Elc Prod Seguranca Ind Sistema de lacre,seio de seguranca e sistema de moldagem em uma matriz de injecao para a fabricacao de um sistema de lacre
HRP960276A2 (en) 1996-06-10 1997-12-31 Jelavić Ivan Safety seal
US6966584B2 (en) 2002-10-01 2005-11-22 E. J. Brooks Company Padlock seal
GB0329665D0 (en) 2003-12-22 2004-01-28 Itw Ltd Long-necked seal
GB0426408D0 (en) * 2004-12-02 2005-01-05 Versapak Internat Ltd Sealing device
EP1672607B1 (fr) 2004-12-16 2011-02-09 ITW Limited Scellement de sécurité
GB0504776D0 (en) 2005-03-08 2005-04-13 Itw Ltd Security seal
ES2334166T3 (es) * 2007-03-28 2010-03-05 F. Hoffmann-La Roche Ag Macanismo de cierre para el bloqueo de un aparato de analisis en la produccion.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0217499A1 (fr) * 1985-07-31 1987-04-08 Les Entreprises Tritton Ltee. Sceau à bride

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR388787A (fr) * 1908-04-02 1908-08-21 Thomas Edward Murray Système de fermeture
US3485521A (en) * 1964-01-10 1969-12-23 Brooks Co E J Seal
US3375033A (en) * 1966-05-09 1968-03-26 Brooks Co E J Padlock-type seal with anti-tampering means
GB1413994A (en) * 1972-05-25 1975-11-12 Itw Ltd Tamper proof seals
US4278281A (en) * 1977-11-01 1981-07-14 E. J. Brooks Company Seal
US4687240A (en) * 1985-03-18 1987-08-18 E. J. Brooks Company Security seal of the padlock type

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0217499A1 (fr) * 1985-07-31 1987-04-08 Les Entreprises Tritton Ltee. Sceau à bride

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8149114B2 (en) 2010-02-09 2012-04-03 Ekstrom Industries, Inc. Utility meter tamper monitoring system and method

Also Published As

Publication number Publication date
EP0223905A1 (fr) 1987-06-03
BR8602546A (pt) 1987-11-17
AU568981B2 (en) 1988-01-14
ES294709U (es) 1986-10-16
CA1319811C (fr) 1993-07-06
AU5844286A (en) 1987-05-28
ZA863609B (en) 1987-04-29
DE3682028D1 (de) 1991-11-21

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