WO2006059154A2 - Dispositif d'etancheite - Google Patents

Dispositif d'etancheite Download PDF

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Publication number
WO2006059154A2
WO2006059154A2 PCT/GB2005/050222 GB2005050222W WO2006059154A2 WO 2006059154 A2 WO2006059154 A2 WO 2006059154A2 GB 2005050222 W GB2005050222 W GB 2005050222W WO 2006059154 A2 WO2006059154 A2 WO 2006059154A2
Authority
WO
WIPO (PCT)
Prior art keywords
seal
sealing device
locking element
legs
locking
Prior art date
Application number
PCT/GB2005/050222
Other languages
English (en)
Other versions
WO2006059154A3 (fr
Inventor
David Sheehan
Original Assignee
Versapak International Limited
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
Priority claimed from GB0426408A external-priority patent/GB0426408D0/en
Application filed by Versapak International Limited filed Critical Versapak International Limited
Publication of WO2006059154A2 publication Critical patent/WO2006059154A2/fr
Publication of WO2006059154A3 publication Critical patent/WO2006059154A3/fr

Links

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
    • 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
    • G09F3/0311—Forms or constructions of security seals characterised by the type of seal used having arrow-like sealing means

Definitions

  • the present invention relates to sealing device.
  • the sealing device is particularly adapted for use in sealing reusable mailing pouches, although it may be used in other applications.
  • Re-usable security envelopes for securely transferring mail are well known. Typically they comprise a sealable bag, a fastening means and a tamper-evident security device.
  • the bag is made from durable material such as a plastics or canvas material and the fastening means typically comprises a fastener which is movable between an open position, which allows access to the interior of the bag, and a closed position in which the bag is sealed to prevent access to the bag's interior and any contents therein.
  • the security device typically comprises a fixed locking housing and a seal means of locking the fastening means thereto. In use, articles to be securely mailed are placed in the bag and the slider moved to the closed position.
  • Attached to the bag adjacent the closed position of the slider is the fixed locking housing to which the slider may be detachably engaged by means of a tab attached to the slider.
  • a security device in the form of a security seal that locks the tab and therefore the slider to the locking housing.
  • the seal is designed for single-use and breaks when the bag is opened. In order to access the bag, the seal must be broken, thereby releasing the tab from the locking housing and permitting the slider to be moved to an open position. Any damage to the seal, tab, locking housing or slider provides an indication of tampering during transit.
  • the seal must be sufficiently durable to withstand rough handling during the period of transit but will generally include a point of weakness so that excessive force is not required to break it.
  • Known security devices suffer from a number of disadvantages.
  • a seal for a mail pouch comprises a head and legs.
  • the legs further include protruding feet.
  • the legs are resiliently deformable to allow the seal to be inserted into a hole which is narrower than the width of the feet combined.
  • the feet are arrow-shaped or have rounded ends to allow them to overlap as they deflect toward one another on entering the hole. Once fully inserted into the hole, the legs spring back to their non-deformed configuration and the feet lock behind shoulders of the housing, preventing removal of the seal.
  • the seal has breakable parts which snap to aid its release.
  • EP 1037191 provides a tamper evident buckle including a first part adapted to be attached to one end of an elongate strap and a second part adapted to be attached to the other end of the strap.
  • the first and second parts include respective engagement means for releasably engaging the two parts together.
  • the tamper evident buckle also includes an enclosure movable between a first position, wherein the first and second parts are freely engageable and disengageable, and a second position wherein the enclosure substantially encloses the engaged first and second parts.
  • the buckle further comprises a seal having a main body, comprised of at least one component, and at least one deflectable member, wherein the seal is adapted to engage the enclosure in the second position and to prevent movement from the second position to the first position unless said seal is broken.
  • the buckle is described for use in securing the contents of a container, such as a cash box, against unauthorized tampering.
  • US 6533335 describes a security device for a slide fastener.
  • the security device includes a housing fitted to an object to which the slide fastener is attached, with the housing substantially surrounding the slider of the slide fastener in its fully closed position.
  • the device also includes a frangible locking seal and a cover member adapted to co-operate with the housing which, in use, covers the slider to prevent access thereto.
  • the locking seal links the housing to the cover member, and slidably inserts into the cover member when the device is closed. The seal cannot then be removed without its fracture.
  • the cover member of the device is attached at one end to a puller and the puller is attached to the slider. The cover member can pivot about the housing and block withdrawal of the slider from the housing in its closed position.
  • the housing also includes a receptacle or guide member which aligns with a slot in the cover member in its closed position and the frangible seal includes barbs or hooks which lock behind the guide member to prevent extraction of said frangible locking element from the housing and the cover member.
  • the present invention seeks to address these problems.
  • the present invention also seeks to provide an improved tamper resistant sealing device, which is more conveniently dimensioned, provides robust engagement between the tab and locking house, protects a zip slider and permits easy removal of the broken seal.
  • a seal according to claim 1 there is provided a seal according to claim 1.
  • the fastening means is slidable.
  • the slidable fastening means comprises a zip fastener.
  • the complementary locking element comprises a stud.
  • the complementary locking element further comprises a seal-engaging surface, shaped such that, upon insertion of the seal into the sealing device, the seal is caused to deviate over the locking element to locate the locking element within the recess of the seal.
  • the locking element has a base attached to either the locking housing or the tab cover and the seal-engaging surface of the locking element is inclined from the base towards its the apex of the locking element.
  • the base of the locking element is attached to the locking housing.
  • the seal when the seal is inserted into an appropriate sealing device, at least a portion of the fastener of the fastening means is covered by the seal. More preferably, the seal covers substantially the whole fastener.
  • the seal has a lip located at an end of its body that is opposite to the location of the seal waist, and which covers the fastener.
  • the legs are divided from the waist portion by a region of weakness which is selectively fracturable. More preferably, the seal is adapted to fracture into at least three component parts.
  • the region of weakness is defined by a groove formed substantially perpendicularly across the junction between the legs and the waist portion.
  • the region of weakness is defined by a plurality of pins which link the legs and the waist portion of the seal.
  • at least one of the pins includes a further region of weakness which perpendicularly intersects the said at least one pin.
  • the further region of weakness is defined by a groove.
  • the further region of weakness is partially- intersected perpendicularly.
  • spaces between adjacent pins common to a particular leg are partially filled. More preferably, a skin links adjacent pins common to a particular leg.
  • the adjacent distal ends of the legs are arrow-shaped.
  • the inner side of each leg is latitudinally ribbed.
  • the seal further comprises at least one ejecting means to self-eject the body and waist portions of the seal from a sealing device upon the fracture thereof.
  • the seal has two ejecting means.
  • the ejecting means are integrally formed with said seal and are positioned on the waist portion of said seal adjacent the body portion.
  • the ejecting means are positioned on the body portion of said seal, adjacent the waist portion.
  • the body of the seal is suitably sized for attachment of barcode label, or any other such suitable label, to enable shipment and tracking of a package/container to which a sealing device accommodating a seal as described is attached.
  • a sealing device as claimed in claim 22.
  • a sealable product having a sealing device as described above.
  • the fastening means is slidable.
  • the slidable fastening means comprises a zip fastener.
  • the locking element, in the form of a stud is located on the tab cover.
  • the locking element, in the form of a stud is located on the locking housing.
  • the seal covers at least a portion of the fastener when said seal is engaged with the tab cover and locking housing. More preferably, the seal of the sealing device covers substantially the whole iastener.
  • the locking housing and tab cover each further comprise at least one seal- engaging means, to engage the seal upon its insertion into the sealing device. More preferably, at least three engaging means are provided wherein at least one engaging means is provided on each of the locking housing and the tab cover. Preferably, the engaging means define a channel through at least a portion of the tab cover and locking housing.
  • the locking element further comprises a seal-engaging surface, shaped to deviate the seal over the locking element to locate the locking element within a complementary recess of the seal when the seal is inserted into the sealing device.
  • the seal-engaging surface is inclined towards an apex of the locking element.
  • the locking housing is provided with side-walls which extend substantially along each side of the sealing device.
  • the side-walls are substantially parallel.
  • the locking housing side-walls, engaged with the tab-cover define a wedge shape.
  • the wedge shape is narrowest at the side of the device connected to the fastener.
  • Figure la-d is a sectional side view of the components for a sealing device, and the assembled sealing device formed from these components, forming a preferred embodiment of the present invention
  • Figure 2 is a perspective view, from the front and to a first side, of the locking housing of the sealing device of Figure Ib;
  • Figure 3 is a perspective view, from the front and to a first side, of the locking housing of Figure 2 further comprising the security tab of Figure Ic;
  • Figure 4 is a perspective view, from the front and to a first side, of the locking housing of Figure 3 further comprising the closure member of Figure Ia;
  • Figure 5a-b is a plan view of preferred embodiments of the seal of the sealing device
  • Figure 6a-d is a sectional side view of alternative embodiments of the components for forming a sealing device in accordance with the present invention.
  • Figure 7 is a perspective view from the front and a first side of an alternative embodiment of a seal of the sealing device.
  • a sealing device 10 for use with a sealable product in the form of a mailing pouch, bag, envelope or container (not shown), which comprises a locking housing 11 , a tab 30 in the form of a cover, and a seal 31.
  • Locking housing 11 as illustrated in Figures Ib and 2, comprises a base plate 12 with first and second ends, a wall 13 extending upwardly from the base plate 12, and a snap-fit locking element 14.
  • the wall 13 is located between snap-fit locking element 14 and the first end of device 10.
  • Wall 13 and snap-fit locking element 14 are separated by a recess 20.
  • the snap-fit locking element 14 and wall 13 are integrally formed with no recess 20.
  • the wall 13 has a central aperture 15, aligned parallel to base plate 12.
  • the snap-fit locking element 14 comprises a platform 21, the uppermost surface of which is aligned with the bottom of aperture 15.
  • Located centrally on platform 21 is a tapered locking stud 22.
  • the upper surface of locking stud 22 is sloped and rises from a first end, located proximal to wall 13, to a second end, distal to wall 13.
  • the locking housing further comprises side walls 16 (as best viewed on Figures 2-4) which extend above the height of wall 13 and run substantially the length of locking housing 11.
  • a niche 17 is located in base plate 12, at the second end of locking housing 11.
  • the side-walls 16 are substantially parallel.
  • the walls are closer together at the first end of the device, attached to the fastener, and wider apart at the second end of the device. In such a configuration a wedge-shaped locking housing is defined, when viewed from above.
  • the corresponding tab 30 is complementary in shape to the side-walls 16, to provide a close fit in an assembled state.
  • the complimentary shapes of the tab and locking housing in the wedge-shaped sealing device only allows engagement of the tab and locking housing when the locking housing and tab cover are orientated such that the internal features of the respective components are correctly aligned. This aspect minimizes damage to the sealing device, and in particular the internal components, to prolong the lifetime of the sealing device.
  • Figure Ia illustrates a section through tab 30, which is configured to accommodate the locking housing 11, namely wall 13 and snap-fit locking element 14.
  • the tab 30 has first and second ends corresponding to first and second ends of locking housing 11.
  • Tab 30 defines a minor internal chamber 32 positioned towards its first end and a major internal chamber 33 positioned towards its second end.
  • the chambers are separated by an internal wall 41, which has a central aperture 39.
  • internal wall 41 does not extend all the way to the bottom of the tab 30, as is illustrated in Figure Ia.
  • the major internal chamber 33 is proportioned to accommodate the snap-fit locking element 14 of the locking housing 11.
  • the minor internal chamber 32 is proportioned to accommodate the wall 13 of the locking housing 11.
  • An aperture 38 located in the first end of the tab 30, links the minor internal chamber with the exterior of the tab 30.
  • Apertures 38 and 39 are dimensionally proportioned and are aligned to define a channel between the major internal chamber 33 and the exterior of tab 30.
  • the tab 30 also has an attachment point or aperture 34 at the first end, for attachment to a fastener in the form of a zip slider 35, and a flange at the second end to facilitate handling.
  • the apertures 38 and 39 are chamfered in accordance with aperture 15, as illustrated in Figure Ib.
  • an elongate seal 31 comprises a body 56, defining a first end, linked to a pair of legs 44, defining a second end, by waist 45.
  • Legs 44 form a resiliently deformable snap-fit connector, adapted for locking engagement with stud 22 of snap-fit locking element 14 on locking housing 11.
  • seal 31 will be described below with reference to the snap-fit locking mechanism of a preferred embodiment of the invention.
  • the snap-fit connector legs 44 are essentially planar and of generally triangular shape, which collectively form an arrow-shaped plug structure, and are integrally formed with the seal 31.
  • the pair of legs 44 are generally wider than waist 45 and narrower than body 56.
  • At the base of the arrowhead hips 50 are formed.
  • the legs 44 define an opening 51, which may be tapered as illustrated, from the second end of the seal 31.
  • the internal edges of each leg are correspondingly shaped to define a recess 53.
  • a lip 42 (as best observed in Figure Ic) is positioned at a first end of the seal, giving the seal 31 a substantially L-shaped profile. In an alternative embodiment (not shown) the seal is formed without lip 42.
  • Located towards the second end of the elongate seal 31 is a groove 43 that transects the seal 31, from a first side to second side thereof, to define a region of weakness.
  • Groove 43 may be positioned at any point along the waist 45.
  • groove 43 intersects the apex of opening 51, at the point where legs 44 converge and meet waist 45.
  • ejection means 54 are provided on a backward shoulder 55 of the seal and may alternatively be provided on waist 45 (not shown).
  • the ejection means 54 provide a self-eject mechanism to facilitate clearance of a fractured seal 31' from the locking housing 11 when the sealing device 10 is opened.
  • locking stud 22 may be positioned on the roof of chamber 33 of locking housing 11.
  • groove 43 is replaced by a plurality of pins 66 which link the legs 44 to the waist portion 45 thereby defining a region of weakness.
  • pins 66 which link the legs 44 to the waist portion 45 thereby defining a region of weakness.
  • four pins are shown, but it will be recognized by one skilled in the art that alternative arrangements of pins could be utilised.
  • the pins are perpendicularly intersected by groove 70 or partially- intersected by groove 71, defining further regions of weakness.
  • the partially- intersected pins 71 add strength, perpendicular to the plane of the seal, which would otherwise be lacking in a seal in which the pins were intersected solely by grooves 70.
  • spaces between adjacent pins common to a particular leg are partially filled. This may take the form of a skin or flash.
  • the sealing device is used in conjunction with a sealable product in the form of a reusable mailing pouch, bag or envelope, wherein locking housing 11 is securely fixed to a first side of the bag, adjacent the closed end of a fastening means, such as a slidable fastener in the form of a zip fastener.
  • the locking housing 11 is affixed by means of a locking plate (not shown) on the opposite side of said bag, or inside the bag. It is preferably connected to the locking plate by rivets or any suitable means commonly used in the art.
  • tab 30 is connected to a zip slider 35 of a zip train, through attachment point 34.
  • zip slider 35 is moved from an open position along the zip train to a closed position.
  • Tab 30 is then fitted over locking housing 11 and legs 44 of seal 31 are inserted into the channel formed by the alignment of aperture 15 of the locking housing 11 and apertures 38, 39 of the tab 30.
  • legs 44 Upon insertion of legs 44 into the channel, the constraining force exerted thereon by the channel sidewalls (defined by apertures 15, 38 and 39), deform legs 44, leading to the closure of opening 51, and temporarily reducing the effective overall width of the legs 44. Such deformation enables the legs 44, to pass through the somewhat narrower channel ( Figure Id). Legs 44 are also deflected upwardly by the sloped face of locking stud 22 (it will be recognized that in the alternative sealing device illustrated in Figures 6a and b, legs 44 are deflected downwardly relative to the sealing device). When the legs 44 have been fully inserted in the channel (i.e. when the hips 50 have passed through the channel and into the major internal chamber 33), the legs 44 spring back to their original configuration.
  • opening 51 and recess 53 are reformed and recess 53 snap-fits around locking stud 22 to retain seal 31 within the sealing device 10.
  • Abutment of the hips 50 against the wall 41 of tab 30, as indicated in Figure 3, provides the primary means of retention of seal 31.
  • seal 31 cannot be removed from the locking housing since the abutment of hips 50 against the channel mouth, and also the snap-fit connection of locking stud 22 in recess 53 prevents removal therefrom.
  • Locking stud 22 prevents opening 51 from being forcibly closed (through application of force to legs 44) to release the seal 31 from the locking housing 11.
  • Such an arrangement within the locking housing effectively renders the legs of the snap-fit connector 44 immovable as they cannot be further manipulated, and thus prevents tamper with the sealing device.
  • the tab 30 is thus held in its position over the locking housing 11 by the waist 45 and legs 44 of the seal 31 which span the channel formed by apertures 15, 38 and 39 to hold together the locking housing and tab cover to thus prevent their separation.
  • body 56 of seal 31 is configured such that, when the sealing device is in an assembled configuration, the body of seal 31 covers/overhangs the attachment point 34 for zip slider 35 to prevent tampering therewith. Provision of lip 42 provides a further security feature to prevent or deter tampering with the zip slider 35.
  • the side-walls 16 of locking housing 11 prevent access to the underside of tab 30 and also extend to protect the sides of zip slider 35 attached to tab 30.
  • legs 44 is not essential but it provides tapered sides that direct some of the force applied when pushing the seal into the channel so as to close the opening 51.
  • flange 40 is prised from base 12, facilitated by niche 17, to initiate removal of tab 30 from the locking housing. Movement of flange 40 away from base plate 12 exerts a force on seal 31 such that the seal fractures along groove 43. As tab 30 is lifted away from base plate 12, apertures 38 and 39 of the tab exert an upwards force on seal 31, whereas aperture 15 of wall 13 on base plate 12 provides a downward force, the effect being that the forms cancel each other out. However, if the force applied to flange 40 is sufficient enough, the opposing forces generated in the channel become too great for the seal to withstand and this results in the fracture of the seal preferentially along groove 43. Alternatively, access to the bag can be gained by prising the body of seal 31 upwards, away from the fastener connected to tab 30. This exerts a force on the seal predominantly through the ceiling of aperture 38 and causes the seal 31 to fracture.
  • Tab 30 may be fully disengaged from the locking housing 11, as a result of the fracture (by either method), since seal 31 no longer prohibits such disengagement by spanning the channel formed from apertures 15, 38 and 39.
  • seal of the preferred embodiment is difficult to remove without breaking.
  • spring means abut the exterior wall in which aperture 38 is formed and compress to generate a tension force in the spring that opposes the insertion of the seal into the channel.
  • the force is not sufficient to prevent the lull insertion and locking action of seal 31 with locking stud 22 but when, on fracture of the seal along groove 43, the locking force is released and the tension force held in the spring means 54 propels the fractured body and waist fragment clear of the sealing device.

Abstract

Cette invention concerne un dispositif d'étanchéité pour produit à obturer. Le produit à obturer comprend une fixation et un dispositif d'obturation destiné à immobiliser la fixation. Ledit dispositif d'obturation comprend un boîtier de verrouillage avec ouverture de blocage pour élément de verrouillage, un couvercle à onglet relié à la fixation et s'engageant dans le boîtier de verrouillage, et un élément de blocage complémentaire. Le joint comprend une partie corps et une partie resserrée reliée par une paire de jambages de faisant mutuellement face, chaque jambage comprenant en outre une partie large sur son bord extérieur à proximité de la partie resserrée. Chaque partie large s'engage de manière verrouillable derrière un épaulement correspondant de part et d'autre de l'ouverture de blocage. Les jambages sont conçus pour se mouvoir ensemble lorsqu'ils sont insérés dans l'ouverture de verrouillage, par rapprochement de leurs extrémités distales. En outre, lesdits jambages présentent dans leur bord intérieur des renfoncements destinés à recevoir l'élément de blocage complémentaire, l'élément de blocage et les renfoncements pour élément de blocage complémentaire formant un dispositif à encliquetage.
PCT/GB2005/050222 2004-12-02 2005-12-01 Dispositif d'etancheite WO2006059154A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0426408A GB0426408D0 (en) 2004-12-02 2004-12-02 Sealing device
GB0426408.1 2004-12-02
GB0515719.3 2005-08-01
GB0515719A GB2420743B (en) 2004-12-02 2005-08-01 Sealing device

Publications (2)

Publication Number Publication Date
WO2006059154A2 true WO2006059154A2 (fr) 2006-06-08
WO2006059154A3 WO2006059154A3 (fr) 2007-02-15

Family

ID=36565402

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/050222 WO2006059154A2 (fr) 2004-12-02 2005-12-01 Dispositif d'etancheite

Country Status (1)

Country Link
WO (1) WO2006059154A2 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246164A (en) * 1990-07-20 1992-01-22 Envopak Group Ltd Sliding fastener with tamper-evident locking
EP0552959A1 (fr) * 1992-01-21 1993-07-28 Envopak Group Limited Système de verrouillage
GB2381830A (en) * 2001-10-09 2003-05-14 Shou-Li Huang Zipper retainer
WO2004022445A1 (fr) * 2002-09-06 2004-03-18 Versapak Doping Control Limited Support de securite

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246164A (en) * 1990-07-20 1992-01-22 Envopak Group Ltd Sliding fastener with tamper-evident locking
EP0552959A1 (fr) * 1992-01-21 1993-07-28 Envopak Group Limited Système de verrouillage
GB2381830A (en) * 2001-10-09 2003-05-14 Shou-Li Huang Zipper retainer
WO2004022445A1 (fr) * 2002-09-06 2004-03-18 Versapak Doping Control Limited Support de securite

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