Source: http://www.google.com/patents/US5433345?dq=%22melissa+white%22
Timestamp: 2016-12-08 05:57:47
Document Index: 506145385

Matched Legal Cases: ['arts 409', 'art 409', 'arts 409', 'art 409', 'arts 409', 'arts 409', 'art 409']

Patent US5433345 - Bag-in-carton and pouring spout thereof - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA pouring spout 5 is mounted on the front surface of a carton 2. The pouring spout 5 pierces through an inner bag. Only a region which is slightly larger than the half of the inner bag 3 on the pouring spout side is adhered to the inner surfaces of the carton by a paste. As the content is discharged,...http://www.google.com/patents/US5433345?utm_source=gb-gplus-sharePatent US5433345 - Bag-in-carton and pouring spout thereofAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS5433345 APublication typeGrantApplication numberUS 08/140,470Publication dateJul 18, 1995Filing dateOct 25, 1993Priority dateOct 28, 1992Fee statusPaidAlso published asCA2109374A1, CA2109374C, DE69321072D1, DE69321072T2, DE69332695D1, DE69332695T2, DE69333767D1, DE69333767T2, EP0598255A2, EP0598255A3, EP0598255B1, EP0867380A1, EP0867380B1, EP1127807A1, EP1127807B1, US5551600, US5769273Publication number08140470, 140470, US 5433345 A, US 5433345A, US-A-5433345, US5433345 A, US5433345AInventorsYasuyuki Sasaki, Takehiko Bizen, Hiroshi Miyama, Takeshi Morisako, Hiroko TsukadaOriginal AssigneeDai Nippon Printing Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (31), Referenced by (5), Classifications (23), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetBag-in-carton and pouring spout thereof
US 5433345 AAbstract
1. A bag-in-carton, comprising:a carton formed in the shape of a substantially rectangular parallelepiped and having strip areas disposed on a pair of opposed surfaces thereof, said strip areas having a predetermined width and extending along the center line of each opposed surface; a flexible inner bag for containing a content, said flexible inner bag being disposed in said carton adhered and fixed to said strip areas; and a pouring spout disposed on said carton in said strip areas and piercing through said flexible inner bag. 2. The bag-in-carton of claim 1, wherein said pouring spout comprises a passage member extending to the inside of said inner bag, said pouring spout and said passage member being integrally formed.
3. The bag-in-carton of claim 2, wherein said passage member is formed in an H-letter shape.
4. A bag-in-carton, comprising:a carton formed in the shape of a substantially rectangular parallelepiped; a flexible inner bag disposed on the inner surfaces of said carton and adapted for containing a content; and a pouring spout disposed on said carton and piercing through said inner bag, said pouring spout being disposed at an end portion of one surface of said carton; wherein a side flap is disposed in the vicinity of said pouring spout and on one surface of said carton adjacent to the surface on which said pouring spout is disposed, said side flap being rotatable about said end portion of the surface on which said pouring spout is disposed, and wherein said flexible inner bag is adhered and fixed to the inner surface of said side flap. 5. The bag-in-carton of claim 4, wherein said inner bag is also adhered and fixed to three surfaces of said carton, one of which is the surface on which said pouring spout is disposed, the other two of which are two opposed surfaces of said carton other than the surface on which said side flap is disposed.
6. The bag-in-carton of claim 5, wherein said inner bag is adhered and fixed to said two opposed surfaces of said carton along regions formed in the shape of a trapezoid, the bottom side of each region being an edge line of the surface on which said pouring spout is disposed, the top side of each region being positioned at a substantially center position of each of said two opposed surfaces.
BICs have been used as vessels for containing liquid. Normally, a BIC is composed of a carton and an inner bag. The carton is formed in a rectangularly parallelopiped shape and has an lower surface, a upper surface, and four side surfaces, each of which is planar. The inner bag is adhered to the inner surfaces of the four side surfaces of the carton. The BICs are used for packaging liquid with a low viscosity (for example, juice, and liquor). When the content of the BIC is discharged, the same amount of air is charged therein.
The present invention is made from the above-described stand points. An object of the present invention is to provide a BIC and a pouring spout thereof which are-suitable for packaging a high-viscosity liquid or a liquid which is adversely affected by air.
According to the third aspect in the construction of the bag-in-carton (BIC), the inner bag is adhered to the inner surfaces of the carton. Thus, the BIC according to the third aspect can be inexpensively produced as with the conventional BIC. Since the content is discharged through the pouring spout, as the content is discharged, the inner pressure of the inner bag decreases. Thus, atmospheric pressure works in the inner bag in the direction that it is squashed. Although the fixed portions of the inner bag are adhered and fixed to the strip areas on the inner surfaces of the carton, the portions which are perpendicular thereto are movable. Thus, the movable portions are inwardly deformed in the inner bag by the atmospheric pressure. Thus, the volume of the inner bag decreases. Therefore, without necessity of charging the inner bag with air, the content can be sucked and discharged. At this point, the inner bag is inwardly deformed from both the ends of the fixed portions fixed on the inner surfaces of the carton. Thus, the inner bag is not unstably deformed, thereby preventing the content from being closed in the inner bag. Consequently, almost all the content can be discharged from the inner bag. Therefore, the remainder of the content can be decreased.
According to the eighth aspect, when the pouring spout is mounted to the inner bag, the passage member can be aligned in the predetermined position. Thus, the mounting process can be simplified. When the BIC is used, the passage member is kept in the predetermined position of the hole of the pouring spout. Thus, when the content is discharged from the inner bag through the pouring spout, even if part of the inner bag is moved to the passage member, it can hold the inner bag, thereby securing the passage of the liquid to the hole of the cylindrical portion,. Thus, the content can be smoothly discharged from the inner bag and the remainder thereof can be decreased.
Next, a paste (for example, an emulsion) 109 is applied to panels 102a' and 102b' of the carton blank 102' (according to the wide surfaces 102a and 102b of the carton 102). Since the paste 109 is applied while the carton blank 102' is being conveyed in the arrow direction of the figure, the paste 109 is applied in a straight line pattern as shown in FIG. 11A. In addition, the paste 109 is applied to the rear surface of a paste-up margin 102g'. The paste positions and paste-pattern are not limited to those shown in the figure. Instead, they may be properly modified. For example, the paste 109 may be applied in a spot pattern.
The sizes of the surfaces 102a and 102b are determined so that they are deformed corresponding to the strength of the card board, the discharging force with which the content is discharged from the inner bag, and so forth. To allow the content 104 to be smoothly discharged as the surfaces 102a and 102b are deformed as shown in FIG. 8B, the width W of the carton 102 should be much larger than the thickness D of the carton 102. Although the ratio of (W/D) depends on the strength of the carton 102, it is preferably 2 or higher. An example of the practical dimensions of the above-described carton 102 is 130 mm (W)×220 mm (H)×40 mm (D).
When the BIC 121 which has been charged with the content 124 is used, as shown in FIGS. 14A and 14B, the BIC 121 is set to a machine such as a printer in such a way that the pouring spout 125 is placed down. The pouring spout 125 is connected to a connector (not shown) of a sucking device disposed on the machine side. The content 124 is discharged through the pouring spout 125. As the content 124 is discharged, the inner pressure of the inner bag 123 decreases. Thus, atmospheric pressure works in the inner bag 123 in the direction that it is squashed. Although the fixed portions 123a and 123b of the inner bag 123 are adhered and fixed to the strip areas 127a and 127b on the inner surfaces of the carton 122, the portions 123c which are perpendicular thereto are movable. Thus, the movable portions 123c are inwardly deformed in the inner bag 123 by the atmospheric pressure. Thus, the volume of the inner bag 123 decreases. Therefore, without necessity of charging the inner bag 123 with air, the content 124 can be sucked and discharged. At this point, as shown by chain double-dashed lines 131a and 131b, the inner bag 123 is inwardly deformed from both the ends of the fixed portions 123a and 123b fixed on the inner surfaces of the carton 122. Thus, the inner bag 124 is not unstably deformed, thereby preventing the content from being closed in the inner bag 124. Consequently, almost all the content can discharged from the inner bag 124. Last, as shown in FIG. 14B, since the opposed movable portions 123c of the inner bag 123 nearly come in contact with the fixed portions 123a and 123b, the volume of the inner bag 123 can be decreased, thereby decreasing the remainder of the content 124.
The flat BIC 201' is conveyed to an assembling and charging step. In this step, as shown in FIG. 24, the BIC 201' is shaped in a square pillar shape and then blanked for the pouring spout. The pouring spout 208 is mounted on the BIC 201'. The cylindrical portion 211 of the pouring spout 208 is inserted into the hole for the pouring spout from the inside of the cylindrically adhered film 203'. The flange 212 is adhered to the inner surface of the flange 212 by an ultrasonic sealing process or the like. After the pouring spout 208 is mounted, the lower end of the cylindrically adhered film 203' is sealed. The lower end of the carton blank 202' is assembled. The lapper end of the cylindrically adhered film 203' is sealed and then the upper end of the carton blank 202' is assembled. Thus, as shown in FIG. 18, the BIC 201 where the inner bag 203 has been contained in the carton 202 has been assembled. Since these steps are performed by the conventional BIC producing technique, for the sake of the simplicity, the production facility and so forth for the BIC 201 are omitted. Last, the inner bag 203 is deaerated through the pouring spout 208 and then the BIC 201 is charged with the content 204 such as an ink. Thus, the state as shown in FIG. 17A takes place.
When the BIC 201 which has been charged with the content 204 is-used, as shown in FIG. 18, the BIC 201 is set to a machine (such as a printer) in a nearly upright style. A connector of a sucking device of the machine (not shown) is connected to the pouring spout 208 so as to discharge the content 204. At this point, since the portion of the inner bag 203 surrounded by the diagonal line X--X and the side surfaces 202a and 202d is the movable portion which is not fixed to the inner surfaces of the carton 202, as the content is discharged, the moving portion is deformed as shown by the chain double-dashed lines 222a, 222b, 222c, etc. of FIG. 17B. Thus, without necessary of charging the inner bag with air, the content is discharged. Last, the movable portion of the inner bag 203 is injected into the fixed portion thereof. Thus, almost all the content can be discharged from the inner bag 203.
As described above, in the bag-in-carton (BIC), the cylindrically adhered film which forms the inner bag is adhered to the carton blank. The carton blank is adhered in a box shape. Both the upper and lower ends of the cylindrically adhered film are sealed. Both the lower and upper ends of the carton blank are assembled. Thus, the BIC is formed. Consequently, the BIC according to the third embodiment can be inexpensively produced as with the conventional BIC. In addition, since the BIC is dually formed of the inner bag and the carton, the content can be securely protected. In addition, in this embodiment, since the inner bag in the carton is adhered and fixed to two adjacent surfaces of the carton and the pouring spout is mounted on one of these surfaces, the portion of the inner bag disposed on the pouring spout side is a fixed portion which is fixed to the inner surfaces of the carton. On the other hand, the other portion of the inner bag is a movable portion. Thus while the movable portion goes into the fixed portion, almost all the content can be discharged from the pouring spout. Consequently, the BIC according to the modification can be effectively used for a packaging carton for a high-viscosity liquid and a liquid which is adversely affected by air.
The inner bag 303 is partially adhered and fixed to the inner surfaces of the carton 302. The inner bag 303 is divided by a chain double-dashed line 308 shown in FIG. 25A and 26. The portion of the inner bag 303 disposed on the pouring spout side is a fixed portion, whereas the portion on the opposite side is a movable portion. The position of the chain double-dashed line 308 which is the boundary of the fixed portion and movable portion of the inner bag 303 is defined so that the inner bag 303 is divided into two equal portions. The position of the chain double-dashed line 308 is preferably defined so that the movable portion of the inner bag 303 is slightly smaller than the fixed portion of the inner bag 303. In this embodiment, as shown in FIGS. 25A and 25B, when the BIC 301 is placed in such a way that the pouring spout 305 faces downward, the chain double-dashed line 308 which divides the inner bag 303 into the movable portion and the fixed portion is defined so that the side surface 302d (and the side surface 302b (FIG. 26) are divided by two at the center thereof, that the area on the pouring spout side is slightly larger than that on the other side, and that the length between the upper end of the chain double-dashed line and the upper end of the side surface 302f is smaller than that between the lower end of the chain double-dashed line and the lower end of the side surface 302f. Practically, the distance d1 between the upper end of the chain double-dashed line 308 and the upper end of the end surface 302f is 1/2 of the distance d between the side surfaces 302e and 302f or slightly larger than that by around 1 to 10 mm. The distance d2 between the lower end of the chain double-dashed line 308 and the lower end of the side surface 302f is slightly larger than the length d1 by around 1 to 15 mm. In this construction, when the content is discharged, the movable portion of the inner bag 303 can properly go into the fixed portion thereof. In addition, just after the content is discharged, the moving portion never approaches to the pouring spout 305. Thus, almost all the content can be discharged from the inner bag 303.
The flat BIC 301' is conveyed to an assembling and charging step. In this step, the BIC 301' is shaped in a square pillar shape and then blanked for the pouring spout. The pouring spout 305 is mounted on the BIC 301'. After the pouring spout 305 is mounted, the lower end of the cylindrically adhered film 303' is sealed. The lower end of the carton blank 302' is assembled. The upper end of the cylindrically adhered film 303' is sealed and then the upper end of the carton blank 302' is assembled. Thus, the BIC 301 where the inner bag 303 has been contained in the carton 302 has been assembled. Since these steps are performed by the conventional BIC producing technique for the sake of the simplicity, the production facility and so forth for the BIC 301 are omitted. Last, the inner bag 303 is deaerated through the pouring spout 305 and then the BIC 301 is charged with the content 304 such as an ink. Thus, the state as shown in FIG. 25A takes place.
FIGS. 30A and 30B are schematic sectional views showing a bag-in-carton (BIC) according to a fifth embodiment of the present invention. FIG. 30A shows the state of the BIC which has been charged with its content, whereas FIG. 30B shows the state of the BIC whose content has been discharged. FIG. 31A is a schematic perspective view showing the BIC. FIG. 31B is a schematic perspective view showing the BIC with its bottom surface up. In FIGS. 30A,, 30B, 31A, and 31B, reference numeral 401 is the BIC according to the fifth embodiment. The BIC 301 is composed of a carton 402 and a flexible inner bag 403 contained therein. The carton 402 forms an outer vessel. The inner bag 403 contains a content 404 which is a liquid such as an ink.
The carton 402 is formed in a rectangularly parallelopiped shaped and has a front surface 402a, side surfaces 402b and 402c, an upper surface 402d, a lower surface 402e, and a rear surface 402f. The carton 402 is formed of a carton blank 402' shown in FIGS. 32A and 32B. The front surface 402a, the side surfaces 402b and 402c, and the rear surface 402f are formed of panels 402a', 402b', 402c', and 402f' of the carton blank 402', respectively. The upper surface 402d and the lower surface 402e are formed of main flaps 402d' and 402e' of the carton blank 402', respectively. In addition, the carton blank 402' has side flaps 402g and 402h disposed above and below the panel 402a' which forms the front surface 402a of the carton 402. As shown in FIGS. 30A and 30B, the side flaps 402g and 402h are nonadhesively placed inside the upper surface 402d and the lower surface 402e of the carton 402, respectively. Thus, the side flaps 402g and 402h are rotatable about the upper and lower ends of the front surface 402a, respectively.
The inner bag 403 is partially adhered and fixed to the inner surfaces of the carton 402. The portion of the inner bag 403 which is fixed to the inner surfaces of the carton 402 is a fixed portion which is a area shown by hatched lines of FIGS. 30A, 30B, 31A, and 31B. In other words, the fixed portion of the inner bag 403 consists of parts 409a, 409b, and 409c. The part 409a is almost all the area of the front surface 402a of the carton 402. The parts 409b and 409c are trapezoidal-areas of the side surfaces 402b and 402c, respectively. The upper side of each trapezoidal area is disposed nearly at the center of each of the side surfaces 402b and 402c, whereas the lower side thereof is disposed in the vicinity of the end of each of the side surfaces 402b and 402c on the front surface side. The inner bag 403 is adhered to the part 409d which faces the side flap 402h on the pouring spout side. Thus, the inner bag 403 is fixed to the inner surfaces of the carton 402 through the parts 409a, 409b, and 409c. The portion of the inner bag 403 which is fixed at these parts 409a, 409b, and 409c is not moved. However, the other portion (which is almost the half) of the inner bag 403 on the opposite side of the pouring spout side is a movable portion which can be freely moved. The portion of the inner bag 403 which faces the side flap 402h is fixed thereto. However, since the side flap 402h is rotatable about the lower end of the front surface 402a, this portion is movable along with the side flap 402h.
After the lower end of the cylindrically adhered film 403' is sealed, the lower end of the carton blank 402' is assembled. At this point, the lower portion of the inner bag 403 is adhered to the part 409d of the side flap 402h disposed at the inner surface of the bottom of the carton 402 by a proper adhesive means (such as a hot melt adhesive agent) (see FIGS. 31A and 31B). The upper end of the cylindrically adhered film 403' is sealed and then the upper end of the carton blank 402' is assembled. Thus, the BIC 401 where the inner bag 403 has been contained in the carton 402 has been assembled. Since these steps are performed by the conventional BIC producing technique for the sake of the simplicity, the production facility and so forth for the BIC 401 are omitted. Last, the inner bag 403 is deaerated through the pouring spout 405 and then the BIC 401 is charged with the content 404 such as an ink. Thus, the state as shown in FIG. 30A takes place.
Next the cylindrically adhered film 503' is adhered to the carton blank 502' by the paste 520. The adhered state of the cylindrically adhered film 503' to the carton blank 502' is shown in FIG. 41A. Next, as shown in FIG. 41B, the panels 502a' and 502d' of the carton blank 502' (according to the surfaces 502a and 502d of the carton 502) are folded and then adhered to each other. Thus, a flat BIC 501' which has not been assembled is formed.
Next, with reference to FIGS. 43 to 45, a seventh embodiment of the present invention will be described. As shown in FIG. 43, a bag-in-carton (BIC) is produced in the following manner. First, a carton blank 602' is prepared. A paste (for example, an emulsion) 609 is applied to the upper portions of panels 602a', 602b', 602c', 602d', and 602g'. A cylindrically adhered film 3' (see FIG. 3B) is adhered to the paste areas of the carton blank 602'. In this case, the carton blank 602' is a box-shaped carton 2 (see FIG. 1A) of the BIC. The cylindrically adhered film 3' is a flexible inner bag 3 of the BIC (see FIG. 1A). In FIG. 43, reference numeral 610 depicts the position of the pouring spout 5 (see FIG. 1A). A movable portion of the inner bag 3 can easily go into the fixed portion of the inner bag 3, as the inner bag 3 is fixed to the upper portions of panels 602a', 602b', 602c' and 602d '. That is, if the inner bag 3 is fixed to only three panels 602a', 602b', and 602c', the portion of the inner bag 3 on the non-fixed panel 602d' may be a fixed portion and shut the pouring spout 5.
The inner bag 3 is partially adhered and fixed to the inner surfaces of the carton 652.. In FIG. 45, reference numeral 656 is the fixed portion of the inner bag 3. Thus, the fixed portion 656 consists of all the area of the surface 652b, a trapezoidal area of the surface 652c, and all the area of the surface 652a. As shown in FIG. 44, the carton 652 is formed by assembling a carton blank 652'. The carton blank 652' has panels 652a', 652b', 652c', 652e', and 652f' and a paste-up margin 652g'. A paste 670 is applied to the almost all the area of the panel 652b', a trapezoidal area of the panel 652c' and the paste-up margin 652g. Thus, the inner bag 3 is fixed to all the area of the surface 652b, the trapezoidal area of the surface 652c, and all the area of the surface 652a. In FIGS. 44 and 45, the pouring spout 658 is mounted to a pouring spout position 660. A passage member 665 is mounted on the pouring spout 658. In addition, a cap 659 is mounted on the pouring spout 658. In FIG. 45, reference numeral 690 is a boundary of the fixed portion and movable portion of the inner bag.
When a content within the inner bag 3 is sucked out, the inner bag 3 is detached at the two adherent points of the paste-up margin 652g'and then the movable portion of the inner bag 3 can easily go toward the pouring spout 5.
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