EP3015395B1 - Child-resistant zipper and packaging bag incorporating said zipper - Google Patents
Child-resistant zipper and packaging bag incorporating said zipper Download PDFInfo
- Publication number
- EP3015395B1 EP3015395B1 EP15184014.7A EP15184014A EP3015395B1 EP 3015395 B1 EP3015395 B1 EP 3015395B1 EP 15184014 A EP15184014 A EP 15184014A EP 3015395 B1 EP3015395 B1 EP 3015395B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fit
- engagement
- adhesion band
- zipper
- packaging bag
- 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.)
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Links
- 238000004806 packaging method and process Methods 0.000 title claims description 54
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- -1 polyethylene Polymers 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
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- 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
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- 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
- B65D2215/00—Child-proof means
Definitions
- the present invention relates to a child-resistant zipper and a packaging bag including such a zipper to hinder unwanted opening of the zipper, for example, by a child, etc., but which is readily opened by predetermined procedures.
- child-resistant refers to a function/mechanism by means of which it is possible to prevent an object from being easily manipulated, for example, by a child or other similar individual. Due to this function, a child is hindered or prevented, for example, from tampering with a lighter, and from easily opening a container of medicine, etc.
- some packaging bags accommodate objects which should not be touched by children, etc.
- a child-resistant zipper for packaging bags to make it difficult for the bag to be opened based on the strength of a child by enhancing the strength of the releasable engagement or fit-engagement of the zipper.
- a packaging bag including a sealing zipper which can be easily opened and closed may be used for various applications.
- a zipper is provided which extends along a seal formed by fusion-bonding of the opening of the bag. After opening this seal, the zipper can be opened and closed. Since the zipper can be opened and closed arbitrarily, by thus providing the seal along the zipper, it is possible to prevent the zipper from being opened or closed while being sold.
- FR 2 998 276 A1 shows a bag with a re-closable child-resistant zipper, configured to remain closed at higher internal volumes.
- the object may be expanded within the packaging bag, causing the zipper to be inadvertently opened.
- the fit-engagement strength of the zipper is enhanced; also in this case, the zipper of an enhanced fit-engagement strength is made difficult to open or close, resulting in inconvenience at the time of use.
- the present invention has been made with a view toward solving at least one of the above problems.
- a child-resistant zipper equipped with a first and second adhesion band members respectively adhered to inner opposing surfaces of an opening P2 of a packaging bag, and first and second fit-engagement portions respectively provided on the opposing surfaces of the adhesion band members, with the fit-engagement portions being adapted for releasable fit-engagement with each other, wherein the adhesive surface of the first adhesion band member is provided on its lower surface to provide a lower surface adhering fit-engagement body in which the fit-engagement portion of the first adhesion band member is arranged along the upper end of the first adhesion band member 1, and wherein there is provided a releasing member on the upper end of the adhesion band member of the lower surface adhering fit-engagement body, the releasing member being adapted to release engagement of the fit-engagement body 2 when the releasing member and the second adhesion band member are opened in opposite directions.
- a zipper wherein, on the second adhesion band member opposite the lower surface adhering fit-engagement body, there is provided an upper surface adhering fit-engagement body in which the adhesive surface of the second adhesion band member is provided on the upper surface thereof and the fit-engagement portion is arranged on the lower end of the second adhesion band member.
- a zipper wherein one of the first and second fit-engagement portions comprises at least one male fit-engagement protrusion and the other fit-engagement portion comprises at least one female fit-engagement recess configured to be fit-engaged in a rib-like or face-like manner, wherein the fit-engagement of the first and second fit-engagement portions is released by inserting an itembetween the male fit-engagement protrusion and the female fit-engagement recess at the releasing member 3 side of the lower surface adhering fit-engagement body.
- a zippered packaging bag equipped with a pair of opposing sides, first and second adhesion band members, each comprising an upper and lower surface on upper and lower ends thereof, one surface of which is an adhesive surface adhered to the inner opposing surfaces of the sides of the packaging bag, and a zipper comprising first and second fit-engagement portions respectively provided on opposing surfaces of the adhesion band members and configured to releasably fit-engage to form a fit-engagement body, wherein the adhesive surface of the first adhesion band member is on its lower surface to provide a lower surface adhering fit-engagement body in which the first fit-engagement portion is arranged along the upper end of the first adhesion band member, and the adhesive surface of the second adhesion band member is on its upper surface to provide an upper surface adhering fit-engagement body in which the second fit-engagement portion is arranged on the lower end of the second band adhesion member, and wherein there is provided a releasing member on the upper end of the first adhesion band member of the lower surface adh
- the fit-engagement body is opened or released from engagement when the releasing member of the lower surface adhering fit-engagement body and the second band adhesion member are opened in opposite directions, thereby providing a child-resistant zipper which is difficult to open by a child, or similar individual, but which can readily be opened by predetermined procedures.
- the zipper may be formed by an appropriate number of rib-type or face-type male fit-engagement portions 2A and female fit-engagement portions 2B, whereby it is possible to select an arbitrary type of zipper. Furthermore, the fit-engaged fit-engagement portion 2 is opened by inserting a finger between the male fit-engagement portion 2A and the female fit-engagement portion 2B from the releasing member 3 side, so that, even if the fit-engagement strength of the fit-engagement portion 2 is enhanced, the zipper can be easily opened by predetermined procedures.
- the fit-engagement portion 2 is not opened even if the packaging bag is opened, and the fit-engagement portion is opened by using the releasing portion; thus, it is possible to provide various packaging bags according to various applications, such as a tamper-free packaging bag, and a packaging bag for accommodating heavy objects.
- the zipper according to an embodiment of the present invention may be, for example, a polyethylene or polypropylene resin zipper, in which a fit-engagement portion 2 is releasably fit-engaged.
- the zipper is formed by providing the fit-engagement body 2 on first and second adhesion band members 1.
- the adhesion band members 1 are band-like members respectively adhered to the inner opposing side surfaces of a packaging bag, for example, formed by a pair of resin sheets P1 superimposed one upon the other at the opening P2 of a packaging bag P, such as a laminated polyester or polyethylene structure (See Figs. 2 and 5 ).
- the fit-engagement body 2 is a fit-engagement member comprising first and second fit-engagement portions.
- the first fit-engagement portion comprises at least one male fit-engagement protrusion 2A and the second fit-engagement portion comprises at least one female fit-engagement recess 2B.
- the first and second fit-engagement portions are situated on opposing inner side surfaces of the adhesion band members 1 and extend in the longitudinal direction along the adhesion band members 1 (See Figs. 4 and 9 ).
- Each adhesion band member 1 comprises upper and lower side surfaces at upper and lower ends thereof, respectively, for placement against resin sheets P1.
- the lower side surface of one adhesion band member 1 is an adhesive surface
- the upper side surface of the other adhesion band member 1 is an adhesive surface such that the position of the fit-engagement body 2 is substantially centered therebetween.
- the lower surface adhering fit-engagement body 10 and the upper surface adhering fit-engagement body 20, respectively See Figs. 2 and 7 ).
- the adhesive surface of the adhesion band member 1 adhered to the side of a packaging bag P1 is situated on the lower end of the fit-engagement body 2 of one adhesion band member 1 (i.e. the end closest to the interior portion P3 of the bag P), and the fit-engagement portion 2A, 2B is arranged to extend along the upper end of this adhesion band member 1 (See Fig. 2 ).
- the upper surface of the adhesion band member 1 e.g. the portion where the fit-engagement portion 2A, 2B is provided (i.e. closest to the opening P2 of the bag) is not adhered to the side of the packaging bag P1.
- a releasing member 3 (See Figs. 1 and 6 ).
- the releasing member 3 is a tongue-like member which extends from the adhesion band member 1 of the lower surface adhering fit-engagement body 10 (at either side thereof or at both sides thereof) to extend longitudinally at the upper end of the adhesion band member 1 (closest to the opening P2 of the bag.
- the fit-engagement body 2 is opened or released from engagement when the releasing member 3 and the side of the packaging bag P1 opposite the releasing member 3 are opened (e.g. by movement of each in opposing directions (See Figs. 4 and 9 ).
- the releasing member 3 may be integrally formed by cutting the upper end of the adhesion band member 1 of the lower surface adhering fit-engagement body 10 approximately along its center (See Figs. 2 and 7 ) to form releasing member 3 while retaining a fit-engagement portion intact (See Figs. 1 , 4 , 6 , and 9 ).
- the releasing member 3 is not restricted to the shown example; it may be arbitrarily changed according to applications of the packaging bag P; for example, it is possible to leave the upper end of the adhesion band member 1 of the fit-engagement portion 2 of the lower surface adhering fit-engagement body 10 side, and form a releasing member 3 by adhering separate releasing members 3 to the upper end of the adhesion band member 1.
- the zipper it is possible to open or release the fit-engaged fit-engagement body 2 by inserting a finger, or other item, between the male fit-engagement portion 2A and the female fit-engagement portion 2B from the releasing member 3 side (See Figs. 4 and 9 ) to release the engagement between protrusion 2A and recess 2B.
- a finger or other item
- the releasing member 3 side See Figs. 4 and 9
- the adhesive surface of the adhesion band member 1 adhered to the resin sheet P1 is the surface of the adhesion band member 1 on the upper side of the fit-engagement portion 2 (the opening P2 side) (See Figs. 2 and 7 ).
- the surface of the adhesion band member 1 on the lower side of the fit-engagement body 2 e.g. closest to the interior portion P3 side of the bag
- the fit-engagement body 2 shown in Figs. 1 through 5 is composed of one male fit-engagement protrusion 2A and one female fit-engagement recess 2B.
- the fit-engagement body 2 shown in Figs. 6 through 10 is composed of a plurality of male fit-engagement protrusions 2A and a plurality of female fit-engagement recesses 2B.
- the packaging bag according to an embodiment of the present invention may be a laminated structure such as a polyester and/or polyethylene packaging bag P equipped with a zipper as described above (See Figs. 1 and 6 ). That is, the packaging bag P comprises a pair of opposing sides P1, e.g. opposing resin sheets, a pair of adhesion band members 1 respectively adhered to inner opposing surfaces of the side of the packaging bag P1, and a zipper configured to releasably engage a fit-engagement body 2 provided on the inner side surfaces of the adhesion band members 1 (See Figs. 2 and 7 ).
- the zipper is formed by a lower surface adhering fit-engagement body 10 and an upper surface adhering fit-engagement body 20 as described above (See Figs. 2 and 7 ) ; and there is provided, a releasing member 3 extending from the upper end of the adhesion band member 1 of the lower surface adhering fit-engagement body 10, at the opening P2 of the bag (See Figs. 1 and 6 ).
- the upper end of the adhesion band member 1 which is not adhered to the side of the packaging bag P1 may be cut off (See Figs. 2 and 7 ).
- the portion of the adhesion band member 1 which is not adhered and which is removed does not constitute an obstacle.
- the packaging bag of the present invention may be any packaging bag of the type in which the fit-engaged fit-engagement portion 2 is configured not to be opened even if the opening P2 of the packaging bag P is opened and in which the fit-engagement portion 2 is opened when force is applied to the releasing member 3 and the upper surface adhering fit-engagement body 20 to open or release engagement of the engagement body to open the bag P.
- the packaging bag of the present invention may be any type of, for example, packaging bag equipped with a zipper as described herein, including a flat bag, as shown in the figure, and various types of gusseted bags.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Description
- The present invention relates to a child-resistant zipper and a packaging bag including such a zipper to hinder unwanted opening of the zipper, for example, by a child, etc., but which is readily opened by predetermined procedures.
- The term "child-resistant" refers to a function/mechanism by means of which it is possible to prevent an object from being easily manipulated, for example, by a child or other similar individual. Due to this function, a child is hindered or prevented, for example, from tampering with a lighter, and from easily opening a container of medicine, etc.
- That is, some packaging bags accommodate objects which should not be touched by children, etc. In this case, in order to hinder access of packaging bag contents to a child, etc., e.g. to open a zippered bag even after a seal of the bag has been opened, there is a demand for a child-resistant zipper for packaging bags to make it difficult for the bag to be opened based on the strength of a child by enhancing the strength of the releasable engagement or fit-engagement of the zipper.
- On the other hand, a packaging bag including a sealing zipper which can be easily opened and closed, may be used for various applications. In the packaging bag disclosed in Japanese Patent Application No.
2001-322652 FR 2 998 276 A1 - By enhancing the fit-engagement strength of the zipper or by adhering a seal, etc. , to the opening, it is possible to make it difficult for the zipper to be opened by tampering by a child, etc. On the other hand, however, a zipper of a high fit-engagement strength is made difficult to open and close; each time it is to be opened, there is required additional time and effort to peel the seal, etc., resulting in inconvenience at the time of use.
- Furthermore, when the zipper packaging bag contains something heavy, the object may be expanded within the packaging bag, causing the zipper to be inadvertently opened. In view of this, the fit-engagement strength of the zipper is enhanced; also in this case, the zipper of an enhanced fit-engagement strength is made difficult to open or close, resulting in inconvenience at the time of use.
- In this way, it is rather difficult for conventional zipper packaging bags to prevent opening by a child, etc., the conventional zipper packaging bag of an enhanced fit-engagement strength involves inconvenience at the time of use.
- The present invention has been made with a view toward solving at least one of the above problems.
- In a first aspect according to the present invention, there is provided a child-resistant zipper equipped with a first and second adhesion band members respectively adhered to inner opposing surfaces of an opening P2 of a packaging bag, and first and second fit-engagement portions respectively provided on the opposing surfaces of the adhesion band members, with the fit-engagement portions being adapted for releasable fit-engagement with each other,
wherein the adhesive surface of the first adhesion band member is provided on its lower surface to provide a lower surface adhering fit-engagement body in which the fit-engagement portion of the first adhesion band member is arranged along the upper end of the firstadhesion band member 1, and
wherein there is provided a releasing member on the upper end of the adhesion band member of the lower surface adhering fit-engagement body, the releasing member being adapted to release engagement of the fit-engagement body 2 when the releasing member and the second adhesion band member are opened in opposite directions. - In one embodiment, there is provided a zipper wherein, on the second adhesion band member opposite the lower surface adhering fit-engagement body, there is provided an upper surface adhering fit-engagement body in which the adhesive surface of the second adhesion band member is provided on the upper surface thereof and the fit-engagement portion is arranged on the lower end of the second adhesion band member.
- In another embodiment, there is provided a zipper, wherein one of the first and second fit-engagement portions comprises at least one male fit-engagement protrusion and the other fit-engagement portion comprises at least one female fit-engagement recess configured to be fit-engaged in a rib-like or face-like manner, wherein the fit-engagement of the first and second fit-engagement portions is released by inserting an itembetween the male fit-engagement protrusion and the female fit-engagement recess at the releasing
member 3 side of the lower surface adhering fit-engagement body. - In another aspect, there is provided a zippered packaging bag equipped with a pair of opposing sides, first and second adhesion band members, each comprising an upper and lower surface on upper and lower ends thereof, one surface of which is an adhesive surface adhered to the inner opposing surfaces of the sides of the packaging bag, and a zipper comprising first and second fit-engagement portions respectively provided on opposing surfaces of the adhesion band members and configured to releasably fit-engage to form a fit-engagement body, wherein the adhesive surface of the first adhesion band member is on its lower surface to provide a lower surface adhering fit-engagement body in which the first fit-engagement portion is arranged along the upper end of the first adhesion band member, and
the adhesive surface of the second adhesion band member is on its upper surface to provide an upper surface adhering fit-engagement body in which the second fit-engagement portion is arranged on the lower end of the second band adhesion member, and wherein there is provided a releasing member on the upper end of the first adhesion band member of the lower surface adhering fit-engagement body, the releasing member being adapted to release engagement of the fit-engagement body when the releasing member and the second adhesion band member are opened in opposite directions. - Thus, when the packaging bag is opened, there is no force applied to the fit-engagement portion of the lower surface adhering fit-engagement body, and the engaged fit-engagement body is not released from engagement. The fit-engagement body is opened or released from engagement when the releasing member of the lower surface adhering fit-engagement body and the second band adhesion member are opened in opposite directions, thereby providing a child-resistant zipper which is difficult to open by a child, or similar individual, but which can readily be opened by predetermined procedures.
- That is, even if the opening of the packaging bag is opened by the normal procedures, there is no opening force applied to the fit-engagement portion of the lower surface adhering fit-engagement body, and so the bag is not opened, thereby preventing opening by a child, etc., without especially enhancing the fit-engagement strength of the fit-engagement body.
- Furthermore, there is no opening force applied to the fit-engagement portion of the upper surface adhering fit-engagement body when a bag incorporating the zipper accommodates a heavy load. Moreover, even if the load is expanded within the packaging bag, the fit-
engagement portion 2 is prevented from being opened. - The zipper may be formed by an appropriate number of rib-type or face-type male fit-
engagement portions 2A and female fit-engagement portions 2B, whereby it is possible to select an arbitrary type of zipper. Furthermore, the fit-engaged fit-engagement portion 2 is opened by inserting a finger between the male fit-engagement portion 2A and the female fit-engagement portion 2B from the releasingmember 3 side, so that, even if the fit-engagement strength of the fit-engagement portion 2 is enhanced, the zipper can be easily opened by predetermined procedures. - In the zipper packaging bag, the fit-
engagement portion 2 is not opened even if the packaging bag is opened, and the fit-engagement portion is opened by using the releasing portion; thus, it is possible to provide various packaging bags according to various applications, such as a tamper-free packaging bag, and a packaging bag for accommodating heavy objects. - In this way, a child-resistant zipper and a packaging bag incorporating the zipper, which is difficult to open by a child but which is readily opened by predetermined procedures is provided.
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Fig. 1 is a front view of an embodiment of the present invention; -
Fig. 2 is a side sectional view taken along arrow line II-II ofFig. 1 . -
Fig. 3 is a side sectional view showing a lock structure when the opening is widened. -
Fig. 4 is a side sectional view showing a state in which the packaging bag is opened along the arrow line III--III ofFig. 1 . -
Fig. 5 is a side sectional view showing a lock structure when the inside of the packaging bag is expanded. -
Fig. 6 is a front view of another embodiment of the present invention. -
Fig. 7 is a side sectional view taken along arrow line VI--VI ofFig. 6 . -
Fig. 8 is a side sectional view showing a lock structure when the opening is widened. -
Fig. 9 is a side sectional view showing a state in which the opening of the packaging bag is widened along arrow line VII-VII ofFig. 6 . -
Fig. 10 is a side sectional view of a lock structure when the inside of the packaging bag is expanded. - The zipper according to an embodiment of the present invention may be, for example, a polyethylene or polypropylene resin zipper, in which a fit-
engagement portion 2 is releasably fit-engaged. Basically, the zipper is formed by providing the fit-engagement body 2 on first and secondadhesion band members 1. - The
adhesion band members 1 are band-like members respectively adhered to the inner opposing side surfaces of a packaging bag, for example, formed by a pair of resin sheets P1 superimposed one upon the other at the opening P2 of a packaging bag P, such as a laminated polyester or polyethylene structure (SeeFigs. 2 and5 ). The fit-engagement body 2 is a fit-engagement member comprising first and second fit-engagement portions. The first fit-engagement portion comprises at least one male fit-engagement protrusion 2A and the second fit-engagement portion comprises at least one female fit-engagement recess 2B. The first and second fit-engagement portions are situated on opposing inner side surfaces of theadhesion band members 1 and extend in the longitudinal direction along the adhesion band members 1 (SeeFigs. 4 and9 ). - Each
adhesion band member 1 comprises upper and lower side surfaces at upper and lower ends thereof, respectively, for placement against resin sheets P1. For each pair ofadhesion band members 1, the lower side surface of oneadhesion band member 1 is an adhesive surface, while the upper side surface of the otheradhesion band member 1 is an adhesive surface such that the position of the fit-engagement body 2 is substantially centered therebetween. Thus, for each pair ofadhesion band members 1 adhered to opposing side surfaces of a packaging bag, there is formed the lower surface adhering fit-engagement body 10 and the upper surface adhering fit-engagement body 20, respectively (SeeFigs. 2 and7 ). - That is, in the case of the lower surface adhering fit-
engagement body 10, the adhesive surface of theadhesion band member 1 adhered to the side of a packaging bag P1 is situated on the lower end of the fit-engagement body 2 of one adhesion band member 1 (i.e. the end closest to the interior portion P3 of the bag P), and the fit-engagement portion Fig. 2 ). In this lower surface adhering fit-engagement body 10, the upper surface of theadhesion band member 1 , e.g. the portion where the fit-engagement portion engagement body 2 is engaged (by engagement of fit-engagement protrusion 2A and fit-engagement recess 2B) there is formed a lock structure in which the opening of P2 of the bag is not applied to the fit-engagement portion 2 of the lower surface adhering fit-engagement body 10 side, and the fit-engagement body 2 remains fully engaged (SeeFigs. 3 and8 ). - In order to release this lock structure, there is provided a releasing member 3 (See
Figs. 1 and6 ). The releasingmember 3 is a tongue-like member which extends from theadhesion band member 1 of the lower surface adhering fit-engagement body 10 (at either side thereof or at both sides thereof) to extend longitudinally at the upper end of the adhesion band member 1 (closest to the opening P2 of the bag. The fit-engagement body 2 is opened or released from engagement when the releasingmember 3 and the side of the packaging bag P1 opposite the releasingmember 3 are opened (e.g. by movement of each in opposing directions (SeeFigs. 4 and9 ). - The releasing
member 3 may be integrally formed by cutting the upper end of theadhesion band member 1 of the lower surface adhering fit-engagement body 10 approximately along its center (SeeFigs. 2 and7 ) to form releasingmember 3 while retaining a fit-engagement portion intact (SeeFigs. 1 ,4 ,6 , and9 ). The releasingmember 3 is not restricted to the shown example; it may be arbitrarily changed according to applications of the packaging bag P; for example, it is possible to leave the upper end of theadhesion band member 1 of the fit-engagement portion 2 of the lower surface adhering fit-engagement body 10 side, and form a releasingmember 3 by adhering separate releasingmembers 3 to the upper end of theadhesion band member 1. - In the zipper according to an embodiment of the present invention, it is possible to open or release the fit-engaged fit-
engagement body 2 by inserting a finger, or other item, between the male fit-engagement portion 2A and the female fit-engagement portion 2B from the releasingmember 3 side (SeeFigs. 4 and9 ) to release the engagement betweenprotrusion 2A andrecess 2B. As a result, there is no need for a great strength at the time of opening even if the fit-engagement strength of the male fit-engagement portion 2A and the female fit-engagement portion 2B of the fit-engagement portion 2 is sufficiently enhanced. - In the upper surface adhering fit-
engagement body 20, the adhesive surface of theadhesion band member 1 adhered to the resin sheet P1 is the surface of theadhesion band member 1 on the upper side of the fit-engagement portion 2 (the opening P2 side) (SeeFigs. 2 and7 ). In this upper surface adhering fit-engagement body 20, the surface of theadhesion band member 1 on the lower side of the fit-engagement body 2 (e.g. closest to the interior portion P3 side of the bag) is not adhered to the side of the packaging bagP1. Thus, it is possible to remove, e.g. cut off, the portion of theadhesion band member 1 which is not adhered. - As a result, when a large load is contained within the inside P3 of the packaging bag P, there is no opening strength or force applied to the upper adhering fit-
engagement body 20 to disengage engagement of the fit-engagement body 2 (i.e. engagement ofprotrusion 2A andrecess 2B) Thus, even if the inside P3 of the packaging bag P is greatly expanded or filled, the fit-engagement portion 2 is not opened (SeeFigs. 5 and10 ). - The fit-
engagement body 2 shown inFigs. 1 through 5 is composed of one male fit-engagement protrusion 2A and one female fit-engagement recess 2B. The fit-engagement body 2 shown inFigs. 6 through 10 is composed of a plurality of male fit-engagement protrusions 2A and a plurality of female fit-engagement recesses 2B. Furthermore, although not shown, it is also possible to form the fit-engagement body 2 by a face-type male fit-engagement portion 2A and a face-type female fit-engagement portion 2B. In this way, the structure of the fit-engagement portion 2 allows arbitrary selection. Also, as the area of the fit-engagement surface of the fit-engagement portion 2 widens, it becomes possible to increase the fit-engagement strength of the fit-engagement body 2. Furthermore, even in the case of a fit-engagement body 2 of such a high fit-engagement strength, it can be readily opened from the releasingmember 3. - The packaging bag according to an embodiment of the present invention may be a laminated structure such as a polyester and/or polyethylene packaging bag P equipped with a zipper as described above (See
Figs. 1 and6 ). That is, the packaging bag P comprises a pair of opposing sides P1, e.g. opposing resin sheets, a pair ofadhesion band members 1 respectively adhered to inner opposing surfaces of the side of the packaging bag P1, and a zipper configured to releasably engage a fit-engagement body 2 provided on the inner side surfaces of the adhesion band members 1 (SeeFigs. 2 and7 ). - The zipper is formed by a lower surface adhering fit-
engagement body 10 and an upper surface adhering fit-engagement body 20 as described above (SeeFigs. 2 and7 ) ; and there is provided, a releasingmember 3 extending from the upper end of theadhesion band member 1 of the lower surface adhering fit-engagement body 10, at the opening P2 of the bag (SeeFigs. 1 and6 ). - In the lower surface adhering fit-
engagement body 10, the upper end of theadhesion band member 1 which is not adhered to the side of the packaging bag P1 may be cut off (SeeFigs. 2 and7 ). Using this construction, when accessing an object from the opening P2 of the packaging bag P, the portion of theadhesion band member 1 which is not adhered and which is removed does not constitute an obstacle. Depending upon the nature of the objects within the bag P, it is also possible to leave the portion of theadhesion band member 1 which is not adhered in place. - The packaging bag of the present invention may be any packaging bag of the type in which the fit-engaged fit-
engagement portion 2 is configured not to be opened even if the opening P2 of the packaging bag P is opened and in which the fit-engagement portion 2 is opened when force is applied to the releasingmember 3 and the upper surface adhering fit-engagement body 20 to open or release engagement of the engagement body to open the bag P. Thus, the packaging bag of the present invention may be any type of, for example, packaging bag equipped with a zipper as described herein, including a flat bag, as shown in the figure, and various types of gusseted bags. - Thus, as one of skill in the art will appreciate, the configuration, structure, molding method, etc., of the packaging bag P and of the present zipper, including the fit-
engagement portion 2 may be modified without departing from the scope of the present claims. -
- P: Packaging bag
- P1: Resin sheet
- P2: Opening of bag P
- P3: Inside of bag P
- 1: Adhesion band member
- 2: fit-engagement body
- 2A: Male fit-engagement portion
- 2B: Female fit-engagement portion
- 3: Releasing member
- 10: Lower surface adhering fit-engagement body
- 20: Upper surface adhering fit-engagement body
Claims (4)
- A child-resistant zipper comprising first and second adhesion band members (1) in the form of band-like members respectively adhered to inner opposing side surfaces of a packaging bag, the adhesion band members (1) each comprising an upper side surface on an upper end thereof and a lower side surface on a lower end thereof for placement against the respective one of the opposing inner surfaces of the packaging bag, one side surface of each adhesion band member (1) is an adhesive surface for adherence to the respective one of the opposing inner surfaces of the packaging bag, and a fit-engagement body (2) comprising first and second fit-engagement portions (2A, 2B) respectively provided on opposing inner side surfaces of the adhesion band members (1), wherein the first fit-engagement portion (2A) comprises at least one male fit-engagement protrusion and the second fit-engagement portion (2B) comprises at least one female fit-engagement recess, wherein the first and second fit-engagement portions (2A, 2B) are adapted to releasably engage with each other to form the fit-engagement body (2),
wherein the adhesive surface of the first adhesion band member (1) is provided on its lower surface to form a lower surface adhering fit-engagement body in which the fit-engagement portion (2A, 2B) of the first band adhesion member (1) is arranged along the upper end of the first adhesion band member (1), and
wherein there is provided a releasing member (3) on the upper end of the first adhesion band member (1) of the lower surface adhering fit-engagement body, the releasing member (3) being adapted to release engagement of the fit-engagement body (2) when the releasing member (3) and the second adhesion band member (1) are opened in opposite directions,
characterized in that the releasing member (3) is a tongue-like member which extends from the adhesion band member (1) of the lower surface adhering fit-engagement body (10) (at either side thereof or at both sides thereof) to extend longitudinally at the upper end of the adhesion band member (1). - The zipper according to Claim 1, wherein, on the second adhesion band member (1), there is provided an upper surface adhering fit-engagement body (20) in which the adhesive surface of the second adhesion band member (1) is provided on the upper surface thereof and the fit-engagement portion (2A, 2B) is arranged on the lower end of the second adhesion band member (1).
- The zipper according to Claim 1, wherein one of the first and second fit-engagement portions (2A, 2B) comprises at least one male fit-engagement protrusion and the other fit engagement portion comprises at least one female fit-engagement recess configured to be fit-engaged with the male fit engagement protrusion in a rib-like or face-like manner, wherein the fit-engagement of the first and second fit-engagement portions (2A, 2B) is released by inserting an item between a male fit-engagement protrusion and a female fit-engagement recess at the releasing member (3) side of the lower surface adhering fit-engagement body.
- A zippered packaging bag comprising a pair of opposed sides, and a zipper according to one of claims 1 to 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15184014T PL3015395T3 (en) | 2014-10-31 | 2015-09-07 | Child-resistant zipper and packaging bag incorporating said zipper |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014222237A JP6412771B2 (en) | 2014-10-31 | 2014-10-31 | Chuck with child resistance function and packaging bag with chuck |
CA2891649A CA2891649C (en) | 2014-10-31 | 2015-05-12 | Child-resistant zipper and packaging bag incorporating said zipper |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3015395A1 EP3015395A1 (en) | 2016-05-04 |
EP3015395B1 true EP3015395B1 (en) | 2017-10-25 |
Family
ID=54065753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15184014.7A Active EP3015395B1 (en) | 2014-10-31 | 2015-09-07 | Child-resistant zipper and packaging bag incorporating said zipper |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3015395B1 (en) |
PL (1) | PL3015395T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110641823A (en) * | 2019-09-12 | 2020-01-03 | 常州美昇进出口有限责任公司 | Carry-on bag capable of preventing being opened by children and bag opening mode thereof |
Families Citing this family (4)
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US10011403B1 (en) | 2017-02-23 | 2018-07-03 | Quark Distribution, Inc. | Child resistant sealing system |
US11286086B2 (en) | 2018-12-19 | 2022-03-29 | Reynolds Presto Products Inc. | Hidden flange child resistant closure for recloseable pouch and methods |
US11530076B2 (en) | 2018-12-19 | 2022-12-20 | Reynolds Presto Products Inc. | Hidden flange child resistant closure for recloseable pouch and methods |
PL242136B1 (en) | 2019-02-08 | 2023-01-23 | Elplast Europe Spolka Z Ograniczona Odpowiedzialnoscia | Tamper-resistant ziplock closure and packaging with tamper-resistant ziplock closure |
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Publication number | Priority date | Publication date | Assignee | Title |
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CA2316001C (en) * | 1999-08-27 | 2006-10-17 | Aeroquip Corporation | Reclosable plastic bag and method for forming |
JP2001322652A (en) | 2000-05-17 | 2001-11-20 | Sadako Nagashima | Method for cutting off welded portion of packaging bag and structure of notch for cutting off packaging bag |
US8376614B2 (en) * | 2007-03-20 | 2013-02-19 | S.C. Johnson & Son, Inc. | Venting double zipper and reclosable storage bag using same |
FR2963927B1 (en) * | 2010-08-17 | 2012-09-14 | S2F Flexico | INVIOLABLE PACKAGING BAG |
JP6160853B2 (en) * | 2012-03-30 | 2017-07-12 | 株式会社ジェイ・エム・エス | Bag with chuck |
FR2998276A1 (en) * | 2012-11-19 | 2014-05-23 | S2F Flexico | Sachet for packaging detergent tablet, has grip fixed to external surface of set of walls in adjacent zone at complementary elements so as to allow opening of sachet by relative displacement of complementary elements along longitudinal axis |
-
2015
- 2015-09-07 PL PL15184014T patent/PL3015395T3/en unknown
- 2015-09-07 EP EP15184014.7A patent/EP3015395B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110641823A (en) * | 2019-09-12 | 2020-01-03 | 常州美昇进出口有限责任公司 | Carry-on bag capable of preventing being opened by children and bag opening mode thereof |
CN110641823B (en) * | 2019-09-12 | 2022-03-29 | 常州美昇进出口有限责任公司 | Carry-on bag capable of preventing being opened by children and bag opening mode thereof |
Also Published As
Publication number | Publication date |
---|---|
EP3015395A1 (en) | 2016-05-04 |
PL3015395T3 (en) | 2018-05-30 |
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