EP1885610A2 - Sac a fermeture inviolable - Google Patents

Sac a fermeture inviolable

Info

Publication number
EP1885610A2
EP1885610A2 EP06771496A EP06771496A EP1885610A2 EP 1885610 A2 EP1885610 A2 EP 1885610A2 EP 06771496 A EP06771496 A EP 06771496A EP 06771496 A EP06771496 A EP 06771496A EP 1885610 A2 EP1885610 A2 EP 1885610A2
Authority
EP
European Patent Office
Prior art keywords
closure
profile
channel
interlocking
slider
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Withdrawn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
EP06771496A
Other languages
German (de)
English (en)
Inventor
Catherine E. Kettner
Steven E. Gradl
Michael E. Schreiter
Timothy J. May
Greg W. Melchoir
Chad A. Hendricks
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.)
Reynolds Consumer Products Inc
Original Assignee
Reynolds Consumer Products Inc
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 Reynolds Consumer Products Inc filed Critical Reynolds Consumer Products Inc
Publication of EP1885610A2 publication Critical patent/EP1885610A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2584—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterized by the slider
    • B65D33/2585—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterized by the slider being provided with tamper-indicating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45152—Each mating member having similarly shaped, sized, and operated interlocking or intermeshable face
    • Y10T24/45157—Zipper-type [e.g., slider]
    • Y10T24/45168—Zipper-type [e.g., slider] for container [e.g., bag]

Definitions

  • the invention pertains to a closure for a flexible package. More particularly, the invention pertains to a closure having tamper-inhibiting features which include indication that attempts have been made to open the closure putting a viewer on notice of potential unauthorized access of the contents of a package to which the closure is attached.
  • Security bags for example, those used to transport instruments of value, for example, currency, comprise a method of sealing the bag which inhibits unauthorized opening of the bag and unauthorized access to the contents of the bag.
  • Such security bags are described in each of U.S. Patent Nos. 5,908,243 to Harming, 5,631,068 to Smith, 5,620,256 to Makrauer, 5,407,277 to Burke, 5,352,041 to Fullerton et al., 5,350,238 to Bolton, 5,318,364 and 5,108,194 each to Raden, 4,491,196 to Edelman et al. ,4,838,708 to Holcomb, and 4,653,113 to Taylor.
  • tamper-inhibiting / tamper-indicating closures utilized in previous security bags have employed adhesives, for example, as described in U.S. Patent Nos. 5,108,194 to Raden, 4,491,196 to Edelman et al., and 4,838,708 to Holcomb, and/or selectively die-cut or selectively imprinted portions, for example, as described in U.S. Patent Nos. 5,631,068 to Smith, 5,620,256 to Makrauer, 5,350,238 to Bolton, and 5,318,364 to Raden.
  • the present invention provides a closure comprising interlocking elements which provide a seal. Additionally, at least one of the interlocking elements is adapted to fail when a force which is less than that sufficient to disengage the interlocked closure elements is applied to the sealed closure, thereby providing visual indication that the closure has been opened.
  • the present invention provides a closure which requires an implement, for example, a slider, to effect the initial sealing of the package to which it is attached, permitting the provision of a closure which provides a high closing force.
  • the slider is removed from the sealed package.
  • the slider track is adapted to impede reattachment of the slider after removal.
  • the slider is adapted to cover the closure completely and after initially sealing the closure, remain in place, covering the closure, hi this embodiment the covering slider is adapted to be unremovable without triggering an indicator of the removal attempt, providing the closure with alternate or additional tamper deterrence Summary of the Invention
  • the present development provides a closure which has at least one channel portion adapted to receive an interlocking profile portion, and at least one oppositely positioned profile comprising: i) a stem joining the interlocking portion of the profile to a flange of the closure; ii) one or more latching projections joined by a frangible connection to the stem, wherein said one or more projections are adapted to cooperatively interlock with at least a portion of said channel, thereby sealing said closure, wherein said frangible connection of said profile is selected to fail at an applied force which is less than sufficient to disengaged the interlocked channel and profile, thereby severing said latching projections from said profile
  • the channel portion of the inventive closure is provided with a window which permits viewing of the interlocked latching projection of the profile, and accordingly, viewing the severed latching projection of the profile after an attempt has been made to access the contents of a package sealed by the closure, thus providing a visual indication of the attempted access.
  • the interlocking portions of the latching projection and the channel are each provided with distinctive coloration which provides visual confirmation of their interlocked state, and serves to highlight a severed condition of the interlocking profile portion of the closure.
  • the closure profile has latching projections having a cross-sectional shape selected from the group consisting of: (1) a latching projection having a wing shape for example, that illustrated in Figure 1; (2) a latching projection having the arrowhead shape, for example, that illustrated in Figure 2; (3) a "C"-shaped latching projection, for example, that illustrated in Figure 3; and (4) a latching projection having a double arrowhead shape, for example, that illustrated in Figure 4, and wherein said channel has a cross-sectional shape selected to interlock with said latching projection(s).
  • the frangible area of the connection between the one or more latching projections joined to the stem of the profile is provided by a die-cut groove penetrating the material comprising the profile.
  • the interlocking profile is segmented.
  • the profile comprises a series of evenly-spaced features with gaps interspersing each of the profile features.
  • the features are regularly spaced.
  • the regularly spaced features are "button-shaped" when viewed in plan view.
  • the inventive closure comprises: a) at least one channel portion adapted to receive an interlocking profile portion, said channel being characterized by having a window which permits visual inspection of a profile interlocked therein;
  • the bi-fold strip is joined to one wall of a bag opening and is disposed to capture both walls of said bag opening between said interlocked channel and profile.
  • the profile on the bi-fold strip is segmented, hi one embodiment the opposite walls of the bag to which the bi-fold strip is joined have at least one pair of registered openings through which a portion of the segmented profile pass prior to interlocking with the opposite channel.
  • the profile comprises a regularly spaced series of profile segments, each of which passes through a pair of registered openings in the opposite walls of the bag opening to which the bi-fold closure is attached prior to interlocking with the opposite channel.
  • the closures of the present invention comprise the opening of a flexible package.
  • the flexible package is a bag.
  • the opening of the package comprises the closure which comprises a channel and a segmented profile defining a series of latching projections, wherein said projections are adapted to cooperatively interlock with at least a portion of said channel, thereby sealing said closure.
  • the package comprises a bag having an opening to which the closure is attached, and wherein at least one portion of the segmented profile penetrates at least one pair of registered openings through the walls of said bag.
  • Figure IB Cross-sectional view of one embodiment of interlocked closure portions, attached security bag and slider.
  • Figure 1C Transverse view of one embodiment of closure, slider, and attached bag illustrating single end stop.
  • Figure 2A Cross-sectional view of one embodiment of the closure having an arrowhead-shaped interlocking projection and channel.
  • Figure 2B Cross-sectional view of one embodiment of a frangible region employed with an arrowhead-shaped interlocking projection.
  • Figure 2C Cross-sectional view of an interlocked arrowhead-shaped projection and channel affixed to bag opening.
  • Figure 3 A - Cross-sectional view of an interlocked "C"-shaped interlocking projection and channel affixed to bag opening.
  • Figure 3B Cross-sectional view of a "C"-shaped interlocking projection and channel employing alternative frangible regions.
  • Figure 4A cross-sectional view of an interlocked "double arrowhead-shaped" projection and channel affixed to the opening of a bag.
  • Figure 4B cross-sectional view of a "double arrowhead-shaped" projection and channel employing alternative frangible areas.
  • Figure 5 A - Cross-sectional view of a bi-fold closure affixed to the opening of a bag in interlocked engagement.
  • Figure 5B Cross-sectional view of a non-interlocked bi-fold closure affixed to the opening of a bag.
  • Figure 5 C Overhead cross-sectional view of a segmented interlocking projection and channel.
  • Figure 5D Plan longitudinal view of a segmented interlocking projection and channel with slider and end stop.
  • Figure 6 Top plan view of an embodiment of a tamper-indent closure.
  • Figure 6 A - Cross-sectional view of the closure of Figure 6, the cross-section being taken along the line A-A of Figure 6.
  • Figure 6B Cross-sectional view of the closure of Figure 6, the cross- section being taken along the line B-B of Figure 6.
  • closure of the present invention will be most beneficially employed when mounted on the opening of a security bag and used to seal access to the interior of the bag, for example, the opening of the plastic security bags described in any one of U.S. Patent Nos. 5,908,243 to Harming, 5,631,068 to Smith, 5,620,256 to Makrauer, 5,407,277 to Burke, 5,352,041 to Fullerton et al., 5,350,238 to Bolton, 5,318,364 and 5,108,194 each to Raden, 5,491,196 to Edelman et al., 4,838,708 to Holcomb, 4,785,960 to Belisle, and 4,653,113 to Taylor, each of which is incorporated herein by reference.
  • the closure of the invention comprises several elements, including a pair of opposed interlocking portions, generally extending from a flange or formed sometimes from a base wall material, either of which is also described herein for convenience or a base material the interlocking of which seals the closure.
  • the closure optionally employs a slider to assist interlocking the closure portions. Generally the slider is guided and supported by rails or other features appended to the flange material or base wall material, depending upon which is employed.
  • the closure of the present invention incorporates into either the interlocking portions of the closure and/or the slider (if employed) at least one tamper-evidencing means. Next will be discussed the interlocking portions of the closure, thereafter, the slider, and finally, methods of preparing the closure.
  • the closure of the present invention comprises two interlocking portions which cooperate to close the opening of a package to which the closure is attached, for example, the opening of a security bag.
  • the interlocking portions of the closure include a channel portion (10) and a profile portion (100) which has interlocking projections (101) and (102), which form the interlocking portion of the profile, is inserted into, and interlocks with the channel portion.
  • the channel portion illustrated in Figure IA comprises a viewing window (14) to which is affixed side walls (11) and (12). Affixed to the side walls is a second viewing window (13), which defines slot (15).
  • Wall (12) and one face of window (13) also support seal area (16), attached thereto.
  • Seal area (16) is used to attach the closure to one wall of a package.
  • Profile (100) comprises stem portion (109) to which latching projections (101) and (102) are attached through frangible regions (103) and (104), respectively.
  • Stem portion (109) is affixed to flange (110) which supports seal area (105) affixed also thereto.
  • Seal area (105) is used to affix the closure to a wall of a package opposite to the package wall to which seal area (16) is affixed.
  • the interlocking portion of profile (100) is interlocked with channel portion (10) by inserting the portion of the stem containing interlocking projections (101) and (102) into slot (15) until face portions (106) and (107) of latching projections (101) and (102) respectively engage faces (1) and (2), respectively of window (13).
  • the interlocked portions of the channel and profile can be verified by viewing through view windows (13) (between region "A-A") and (14) (between region "B-B”).
  • latching projections (101) and (102) are provided with a coloration, and the faces (1) and (2) of viewing window (13) can be provided with contrasting coloration such that when interlock between the profile and channel is complete, the latching portions (101) and
  • the dimensions of the various portions of the channel and profile are selected to require too much force to separate the parts to permit the slot from being enlarged sufficiently to permit disengage of the interlocked profile without severing the frangible regions and actuating the visual tamper-indicating features of the closure or without rendering profound, and visually detectable, damage to the channel. It is preferred for frangible regions to be selected to fail under the application of insufficient force to disengage the interlocked closure portions.
  • the durometer rating and dimensions of the channel and profile will be selected such that the closure can not be conveniently sealed by utilizing digit pressure to press the profile and channel portions of the closure together.
  • slider (17) When higher pressure than can conveniently be supplied by finger pressure is required to interlock the closure parts, it is preferred to employ slider (17) to interlock the two.
  • a slider in general it is preferable to select a thickness for flange (110) which can accommodate a slider finger (111) of an extent sufficient to prevent the slider from being pried off of the flange or forced off of the flange during the stress of a sealing operation.
  • side wall (12) of sufficient dimension that face (3) accommodates slider finger (4) of sufficient extent to prevent the slider from being pried off or forced off of the side wall as well.
  • the closure is affixed to a security bag (18), and is provided with an end stop (19).
  • end stop (19) the assembly is supplied with the slider positioned next to the end stop, which corresponds to a non-interlocked condition in the closure.
  • moving the slider in the direction indicated by arrow "C" in Figure 1C interlocks the channel and profile
  • no end stop is supplied opposite end stop (19)
  • the user continues to slide the slider off of the closure and discards the slider
  • slider (17) does not contain means to separate the interlocked closure portions, unlike conventional sliders which are adapted to alternately interlock and disengage the closure portions.
  • FIG. 1 discussed above, illustrated a "wing-shaped" interlocking projection on the profile and a suitable channel with which it could interlock.
  • Figure 2A there is illustrated a cross-sectional view of another embodiment of the closure of the invention, an "arrow-head" shaped interlocking projection (201) on the profile (200) and a suitable channel (20) with which it can interlock.
  • channel (20) comprises view window (24) to which is affixed walls (21) and (22).
  • walls (23) and (26) which define slot (25).
  • Wall (26) contains also a portion extending beyond wall 22 to which seal area 216 is affixed.
  • profile (200) comprises arrowhead-shaped interlocking projection (201) affixed to stem (209) via frangible region (203).
  • Stem (209) in turn is affixed to flange (210).
  • Attached to flange (210) also is seal area (205).
  • frangible region (203) can be provided by making a single die cut into stem (209) adjacent to interlocking projection (201) on the face of the stem proximal to sealing area (205).
  • frangible region (203) can be provided by making a pair of parallel die cuts one on each of the faces of stem (209) distal and proximal to sealing area (205).
  • walls (23) and (26) which define slot (25) in channel (20) have a cross-section of a thickness selected to provide suitable flexibility to permit interlocking projection (201) to be inserted a sufficient distance into slot (25) to permit faces (206) and (207) of interlocking projection (201) to engage faces (241) and (242), respectively of channel (20).
  • walls (241) and (242) are angled such that when engaged with interlocking projection (201) they are under tension.
  • this tension severs to exert a force directing interlocking projection (201) into the channel in the direction indicated by arrow "c".
  • this force insures not only a tight seal along opening (250) of attached bag (253), but supplies force to impinge interlocking projection 201 against the inside surface of view window (24) should frangible region (203) be ruptured.
  • the interacting portions of the channel and profile can be supplied with contrasting colored material to provide visual indication of interlock and rupture of the frangible region of the closure, giving in the latter event a visual indication of an unauthorized attempt to open the closure.
  • some embodiments will employ a slider (217) to facilitate interlocking the channel and profile of the illustrated closure.
  • wall thickness in the flange and channel portions which support the seal areas (205 and 216 respectively) are selected to be of sufficient thickness to accommodate slider fingers (252 and 251, respectively) having sufficient extent to prevent the slider from being pried off or forced off in use.
  • some embodiments will employ a slider which is removed and discarded after it has been employed to initially seal the closure.
  • Figures 3 A and 3B illustrate a cross-section of a profile having a "C"- shaped interlocking projection and a channel adapted for interlocking with the profile.
  • Figure 3B illustrates the separated profile (300) and channel (30).
  • Profile (300) contains "C"-sha ⁇ ed interlocking projection (301), affixed to stem (309) via a frangible region created by die-cuts 302 and 303.
  • Stem (309) is affixed to flange (310) which has affixed to it also sealing region (305).
  • the "C"-shaped interlocking projection (301) contains interdigitating fingers (306) and (307).
  • Channel (30) comprises window section (34), side walls (31) and (32) from which depend L-shaped walls (33) and (36) respectively.
  • L-shaped wall (36) extends beyond sidewall (32), and has affixed to it sealing area (316).
  • L-shaped walls (33) and (36) define slot (35) and profile locking members (341) and (342).
  • Channel (30) may optionally contain frangible areas (362) and (363) as an alternative to, or in addition to, one or more frangible areas on the profile. These optional frangible areas can be created by providing a die cut into the inside of the junction between side wall (31) and L-shaped wall (33) (illustrated as frangible region 362) and/or a die cut into the inside of the junction between side wall (32) and L-shaped wall (36) illustrated as frangible region 363.
  • the channel will fail along the frangible region provided by the die cut if it is subjected to prying, or other forces, in an attempt to disengage a profile engaged with the channel without rupturing the frangible region of the profile.
  • die-cut regions serve to provide readily identifiable visible evidence that an attempt has been made to defeat the tamper evidencing features of the closure.
  • a die cut can be placed along a feature of the profile or channel in any location in which it is desirable to create a region which will fail if the feature is subjected to stress. From this description it will be appreciated that many variations on the placement of die-cuts can be worked to provide frangible regions which evidence tampering and be within the scope of the invention.
  • interlocking projection (301) of profile (300) is inserted into channel (30) through slot (35) until profile interdigitating member (306) resides between channel sidewall (31) and locking member (341), and profile interdigitating member (307) resides between channel sidewall (32) and locking member (342).
  • profile interdigitating member (306) resides between channel sidewall (31) and locking member (341)
  • profile interdigitating member (307) resides between channel sidewall (32) and locking member (342).
  • Figure 3A illustrates also that a frangible region can be introduced into the junction between the interlocking projection and the stem along the long axis of the stem (302A and 303A) or across the long axis of the stem, as illustrated by, frangible region (302) and (303) in Figure 3 B.
  • a frangible region can be introduced into the junction between the interlocking projection and the stem along the long axis of the stem (302A and 303A) or across the long axis of the stem, as illustrated by, frangible region (302) and (303) in Figure 3 B.
  • slider (317) can be employed to interlock the closure part.
  • the closure can be disposed such that it is guided along the closure utilizing slider finger (351) along sidewall (32) of the channel (30), and slider finger (352) along the bottom of flange (310).
  • the interlocking portions of the profile and channel (30) can have complimentary coloration so that interlock can be visually confirmed by viewing the interlocked portions through window (34).
  • any unauthorized manipulation of the closure which severs the closure portions at the frangible regions will be visible through window (34).
  • Figure 4 A illustrates in cross-section a channel containing an arrowhead-shaped central interlocking projection (43) interlocked with a profile comprising double arrowhead-shaped interlocking projections (44).
  • the channel contains locking members (401), (402), (403), and (404) which interlock with interdigitating members (411), (412), (413), and (414) on the interlocking projections of the profile.
  • channel (40) contains a window through which each interlocking projection of the profile can be viewed (windows 41 and 42).
  • the profile contains a viewing window (422) through which central interlocking projection (43) can be viewed when interlocked with the profile.
  • frangible regions provided by die cuts (431), (432),(433), (434) and (435), which provide regions of failure in the interlocking members of both the channel and the profile.
  • these regions can alternatively be provided by placing corresponding die cuts in each side of the stem connecting the double arrowhead-shaped interlocking projections of the profile to the flange(432a and 432b), (434a and 434b), and in the stem of the central interlocking projection connecting the central interlocking projection to the channel (433a and 433b).
  • a slider (431) will be employed to interlock the channel and profile.
  • Figure 5 A illustrates in cross-section a closure comprising non- interlocked channel (50) and profile comprising a segmented interlocking projection (500).
  • Figure 5B illustrates in cross-section interlocked channel (50) and segmented interlocking projection (500).
  • sidewalls 551 and 552 of package (550) to which the closure is attached contain at least one pair of openings in registration (553) and 554) through which interlocking projection (500) and stem (501) pass prior to interlocking with channel (50).
  • Stem (501) contains also frangible region (502), which is raptured upon application of a force directed at disengaging interlocking projection (500) from channel (50).
  • channel (50) contains window (51), which provides a clear area (between region A- A) through which the interlocked profile and channel can be viewed.
  • segmented profile is provided as a series of regularly spaced “buttons” (561a to 56If) that when interlocked with the channel appear as a series of regularly spaced shapes through window (51).
  • attempts to separate the interlocked channel and segmented profile results in separation of the interlocking projections (500) from stem (502) with the result that the "buttons” no longer appear regularly “spaced” through window (50), providing visual indication of the unauthorized attempt to open the closure.
  • Figure 5D illustrates an overhead cross-sectional view of the "button- shaped" interlocking projections of the segmented profile illustrated in plan view in Figure 5C.
  • the segmented closure, and any of the other closures of the invention can be supplied as a two part closure with the channel and profile fastened to separate flange portions, in the manner typical for interlocking closure strips, or joined to a bi-fold flange.
  • a bi-fold flange can be provided either by mounting or molding the channel and closure on separate flanges and joining them at a common edge or by mounting or molding the channel and closure on a common base material and die-forming or die-cutting a folding line positioned to bring the profile and channel into interlocking registration when the base material is folded along the folding line.
  • the fold line, or joining line in such bi-fold arrangements can be parallel to the long axis of the closure or perpendicular to it.
  • bi-fold closure (570) comprises leaf (571) onto which is mounted (or into which is molded) channel (50), leaf (572), onto which is mounted (or into which is molded) stem (501) and interlocking projection (500), and folding line (573), which is positioned to bring channel (50) and interlocking projection (500) into interlocking orientation when leaf (571) and (572) are folded together along folding line (573).
  • folding line (573) which is positioned to bring channel (50) and interlocking projection (500) into interlocking orientation when leaf (571) and (572) are folded together along folding line (573).
  • flange (52) is attached to side wall (551) of bag (550), at a location that places slot (53) of channel (50) in register with opening (553) in sidewall (551) of bag (550).
  • leaf (572) is folded to bring interlocking projection (500) into register with channel slot (53) and bag wall opening (554). Applying the necessary pressure to the aligned part passes interlocking projection (500) through bag wall openings (554) and (553) and interlocks it within channel (50).
  • bifold strip when a bifold strip is employed, it will be made from a plastic which is staffer than the bag material. When a bifold strip is employed, it is preferred to employ dimensions and design for the strip and/or materials having properties which provide a bi-fold strip that is self supporting. In some embodiments the bi-fold strip will be of a construction and made from materials which provide a rigid bi-fold strip.
  • the segmented profile can be provided by specifically molding a shaped profile, or it can be provided by milling or die-cutting away unwanted portions of a conventionally extruded continuous profile, hi either manner, a profile can be provided which has everything from small gaps milled into it which can be used in conjunction with more or less rectangular holes, to "button-shaped" features which can be employed with round holes, for example, the mushroom-shaped profiles illustrated in Figures 5A to 5D. It will be appreciated that other arrangements of discontinuous profile shapes and bag-wall openings can be employed with equal effect.
  • slider (580) can be employed which utilizes a '"keyway" shaped channel as a guide.
  • the closure is provided with end stop (590) adjacent to closure (580), when the closure is in the unsealed state. End stop (590) maintains the closure on the unsealed container.
  • the slider is operated in the direction indicated by arrow "C", interlocking the interlocking parts of the closure. After the closure is sealed, the slider is moved further along direction "C" and removed from the sealed package and discarded.
  • the material and dimensions of the interlocking portions of the closure are preferably selected to provide a closure which seals a package opening to require a force of at least about 5 pounds to separate the interlocked portions of the closure, more preferably at least about 8 pounds, more preferably at least about 10 pounds, and more preferably at least about 15 pounds.
  • frangible regions are provided by strategic die cutting of the closure profile and/or channel interlocking portions. It will be appreciated that other methods such as selective perforation and the provision of weaker materials in frangible areas can be utilized. Preferably, frangible areas are selected to fail when a force is applied to the sealed closure which is less than sufficient to separate the interlocked portions of the closure.
  • the physical properties of the materials from which the closure is constructed are selected to be sufficiently stiff to resist prying of the interlocking portions of the closure to disengage the interlocked portions without extensive, readily detectable damage to the closure portions subjected to prying, or activating the tamper-evidencing features of the closure.
  • Materials of construction and methods are discussed in more detail below.
  • materials of construction of the inventive closure are selected to resist defeat through softening of the materials to permit mechanical manipulation to open the closure without activating the tamper evident features of the closure.
  • the closure may comprise a conventional interlocking closure (one that does not employ frangible regions) with a slider which contains tamper-evidencing features.
  • Slider (600) is preferably selected to have a length (along section "A-A") which exceeds that of the closure over which it is operated.
  • the slider contains sealed end (601), which acts to encase the closure over which the slider is operated when the closure is in its sealed position.
  • the closure upon which slider (600) operates contains end stop (602), which serves to maintain slider (600) on the closure when it is in the unsealed position (to the left as illustrated in Figure 6).
  • Slider (600) contains also shaving means (603) for shaving off a portion of closure profile (604) if, after being operated in the direction indicated by arrow "E” to seal the closure, it is operated in the direct indicated by arrow “F” in an attempt to access the closure.
  • the slider is also equipped with means (606) to divert the shavings (609) removed from profile (604) by shaving means (603) into chamber (608).
  • the presence of shavings in chamber (608) can be verified by viewing the chamber through viewing window (607) provided in slider top (610).
  • the profile of the closure is preferably provided with a coloration, the viewing chamber comprising a contrasting color so that the presence of shavings indicating an unauthorized attempt to access the closure will be readily apparent.
  • one shaving means illustrated in Figure 6 comprises a sharpened projection resembling a plane blade molded into the underside of the slider contiguous with one wall of chamber (608).
  • a more flexible L- shaped portion (606) fastened only to top wall (610) of slider (600) can be employed to divert shavings from the blade into chamber (608).
  • the closure of the present invention is made from a plastic material adapted for permanent attachment to a security bag to which it is attached.
  • the closure is fashioned from materials which resists prying, softening by heating, and embrittling upon freezing.
  • suitable material is polypropylene. Closures prepared from polypropylene are described in copending U.S. Patent Application No. 10/726,731 (the '731 application) filed December 2, 2003. The '731 application also describes methods of preparing closures utilizing these materials.
  • the disclosure of the '731 application is incorporated herein in its entirety by reference and each of the above-mentioned U.S. Patent Nos. 5,356,222, 5,252,281, and 5,248,201 are each incorporated herein by reference for their teaching in these matters.
  • the present invention closure is illustrated above affixed to a security bag and will find its broadest utility in conjunction with the provision of secure bags for packaging documents of value and currency, it will be appreciated that the present invention closure can also be employed with other flexible packaging materials to provide closure to other forms of flexible packaging and is not limited to use only with bags.
  • the closure of the invention when used to seal the opening of a bag, is attached proximal to the edge of the opening defined by the walls of the bag by a permanent means, for example, welding. In some embodiments it will be preferred to mold the closure portions directly from the web of material from which the bag walls are manufactured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Slide Fasteners (AREA)

Abstract

L'invention concerne une fermeture présentant une partie canal destinée à loger une partie profil à emboîtement. Le canal présente au moins une fenêtre permettant une inspection visuelle d'un profil qui y est emboîté. Au moins un profil est placé de manière à s'emboîter avec le canal et comporte une tige liée à la fermeture et au moins une saillie de verrouillage formée par une liaison frangible à la tige. Au moins une saillie est destinée à s'emboîter de manière coopérative avec la partie canal de la fermeture, ce qui permet de fermer hermétiquement ladite fermeture. Une fermeture comporte une structure d'inviolabilité sous la forme d'un curseur doté d'un rasoir destiné à venir en contact arasant avec les éléments de fermeture à emboîtement longeant la fermeture dans une direction opposée à celle de la fermeture. Les différents éléments de fermeture peuvent comporter différentes couleurs. Les fermetures peuvent être utilisées sur des structures de sacs.
EP06771496A 2005-05-26 2006-05-25 Sac a fermeture inviolable Withdrawn EP1885610A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US68522905P 2005-05-26 2005-05-26
PCT/US2006/020769 WO2006128113A2 (fr) 2005-05-26 2006-05-25 Sac a fermeture inviolable

Publications (1)

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EP1885610A2 true EP1885610A2 (fr) 2008-02-13

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Application Number Title Priority Date Filing Date
EP06771496A Withdrawn EP1885610A2 (fr) 2005-05-26 2006-05-25 Sac a fermeture inviolable

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US (1) US20060269169A1 (fr)
EP (1) EP1885610A2 (fr)
JP (1) JP2008541884A (fr)
WO (1) WO2006128113A2 (fr)

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US20090190860A1 (en) * 2006-11-03 2009-07-30 Kettner Catherine E Package with tamper evident closure, and methods
WO2008148668A1 (fr) * 2007-06-05 2008-12-11 Unilever Plc Emballage refermable
DE102008061529A1 (de) * 2008-12-10 2010-06-17 Wincor Nixdorf International Gmbh Vorrichtung und Verfahren zum Verschließen mindestens eines dünnwandigen, mindestens eine Öffnung aufweisenden Transportbehälters für Wertgegenstände
JP5466972B2 (ja) * 2009-07-17 2014-04-09 出光ユニテック株式会社 帯状嵌合部材、帯状嵌合具、および帯状嵌合具付包装袋
US9187215B2 (en) 2013-03-15 2015-11-17 Reynolds Consumer Products LLC Vertical action reclosable fastener and reclosable bag having same
US9510651B2 (en) * 2013-03-15 2016-12-06 Reynolds Consumer Products LLC Reclosable fastener and reclosable bag having same
CN205256928U (zh) 2015-07-09 2016-05-25 希爱化成株式会社 嵌合件及附带嵌合件的袋体
GB201712848D0 (en) * 2017-08-10 2017-09-27 Ideas For Life Ltd Lock and apparatus comprising the same

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Also Published As

Publication number Publication date
JP2008541884A (ja) 2008-11-27
WO2006128113A3 (fr) 2007-06-07
US20060269169A1 (en) 2006-11-30
WO2006128113A2 (fr) 2006-11-30

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