The present invention generally relates to containers with sliding tabs for controlling dispensing.
It is known for a carton to have a tab that can be slid between portions of the carton and relative to an opening, for opening and closing the opening and thereby controlling dispensing from the carton. For example, U.S. Pat. No. 4,094,456 discloses such a carton. A problem that can be encountered with such a carton is that the tab can be slid too far outwardly, such that the tab has to be reinserted.
For the foregoing other reasons, there is a desire for improvements.
In accordance with one aspect of the present invention, a reclosable carton for dispensing includes upper and lower ends, with a sidewall extending between the upper and lower ends and at least partially around the carton's interior. The upper end includes first and second panels that are in an overlapping relationship with respect to one another, and at least the first panel includes an opening for being in communication with the carton's interior. A flexible, elongate closure tab is connected to the sidewall and extends through a slot so that a portion of the closure tab is interposed between the upper end's first and second panels. The portion of the closure tab can be slid between the first and second panels to provide closed and opened configurations. In the closed configuration, the portion of the closure tab at least substantially obstructs the opening in the top end. The opening in the top end is not substantially obstructed by the closure tab during the open configuration. In accordance with one aspect of the present invention, restricting means is provided for at least discouraging the closure tab from being completely pulled out of the slot.
In accordance with one aspect of the present invention, the restricting means includes a projection that projects from the sidewall. The projection is for being engaged to a predetermined feature of the closure tab and thereby at least discouraging the closure tab from being completely pulled out of the slot. The predetermined feature of the closure tab can be an edge of the closure tab. The edge of the closure tab can at least partially define an opening in the closure tab, with the projection extending into the opening during the open configuration. The projection can be a restricting tab. The sidewall can include inner and outer panels that are in an overlapping relationship with respect to one another. The closure tab can be an extension of the outer panel, and the restricting tab can be an extension of the inner panel.
In accordance with one aspect of the present invention, the restricting means can advantageously allow the upper end's opening to be positioned in relatively close proximity to the front of the carton.
Other aspects and advantages of the present invention will become apparent from the following.
Having described some aspects of the invention in general terms, reference will now be made to the accompanying drawings, which are illustrative of an exemplary embodiment of the present invention and are not necessarily drawn to scale, and wherein:
Referring now in greater detail to the drawings, in which like numerals refer to like parts throughout the several views, a reclosable carton designated by the numeral 10 will be described in the following, in accordance with an exemplary embodiment of the present invention. As best understood with reference to
A slidable closure tab 26 is connected to the outer front panel 16 at an intermediate lateral fold line 28. In addition, an upper lateral fold line 30 can extend across the closure tab 26 so that the closure tab can readily conform to the edge of the carton 10 that is illustrated in
The end of the closure tab 26 that is distant from the outer front panel 16 can be characterized as the slidable end of the closure tab, because the slidable end is for sliding between the inner and outer upper panels 32, 38. The slidable end of the closure tab 26 is positioned between the upper panels 32, 38 and obstructs the outer opening 40 while the carton is in the closed configuration. At the same time, the slidable end of the closure tab 26 obstructs an opening in the inner upper panel 32. This obstructed opening in the inner upper panel 32 can be referred to as the inner opening 42. The inner opening 42 is in communication with the interior of the carton 10. In addition, the inner opening 42 is aligned with the outer opening 40, so that the inner and outer openings 40, 42 are open to one another while the slidable end of the closure tab 26 is not interposed between them and is thereby in the open configuration. For example,
Reiterating, the slidable end of the closure tab 26 can be slid in the space between the upper panels 32, 38 to transition the carton 10 between the closed and opened configurations. If the closure tab 26 becomes positioned in the uninserted configuration illustrated in
At an intermediate position along the forward edge of the outer upper panel 38, an arcuate cut edge 46 extends rearward into the outer upper panel. The cut edge 46 can be characterized as defining an access opening 47 in the outer upper panel 38. The access opening 47 is located at, and open at, the forward end of the outer upper panel. The access opening 47 is for allowing a user to access a portion of the closure tab 26 during the closed configuration, so that the closure tab can be readily transitioned to the opened configuration. More specifically, with the slidable end of the closure tab 26 in the closed configuration illustrated in
Then, the user can grasp the portion of the closure tab 26 that extends outwardly of the slot 44, and slidingly reciprocate the slidable end of the closure tab 26 within the space between the upper panels 32, 38 to transition the carton 10 between the closed and opened configurations. In the open configurations illustrated in
Advantageously, while the carton 10 is in the open configuration, and before the slidable end of the closure tab 26 is pulled all the way out of the slot 44, the restricting tab 34 can engage a predetermined feature of the closure tab 26. In accordance with the exemplary embodiment of the present invention, the predetermined feature of the closure tab 26 is an arresting opening 48 that is defined in the slidable end of the closure tab 26; and more specifically, the predetermined feature of the closure tab 26 is an arcuately curved arresting edge 52 that partially defines the arresting opening 48. The arresting opening 48 is further defined by a straight edge 50 that extends between ends of the arresting edge 52. A variety of differently shaped arresting openings 48 are within the scope of the present invention.
The engagement between the restricting tab 34 and the closure tab's arresting edge 52 can at least discourage the closure tab 26 from being pulled all the way out of the slot 44. This can advantageously help to avoid the need to reinsert the closure tab 26 into the slot 44. Because the restricting tab 34 is provided for discouraging the closure tab 26 from being pulled all the way out of the slot 44, a relatively small distance can be provided between the openings 40, 42 and one or both of the front of the carton 10 and the rearward portion of the cut edge 46/access opening 47. By avoiding the inclusion of a relatively large distance between the openings 40, 42 and the front of the carton 10, and/or a relatively large distance between the inner and outer openings 40, 42 and the rearward portion of the cut edge 46/access opening 47, the outer and inner openings 40, 42 can be in relatively close proximity to the front of the carton. Such close proximity can advantageously help to facilitate pouring goods out of the carton 10 via the outer and inner openings 40, 42.
A minimum distance between the front and rear of the carton 10 is at least generally designated by the dimension D1 in
In accordance with the exemplary embodiment of the present invention, the minimum distance between the forward end of the inner and outer openings 40, 42 and the front of the carton 10, which is at least generally designated by the dimension D2, is less than about 19% of the minimum distance between the front and rear of the carton 10, which is at least generally designated by the dimension D1. More specifically, the dimension D2 is less than about 17% of the dimension D1. Even more specifically, the dimension D2 is less than about 15% of the dimension D1. Still even further specifically, the dimension D2 is less than, or equal to, about 13.3% of the dimension D1.
In accordance with the exemplary embodiment of the present invention, the minimum distance between the forward end of the inner and outer openings 40, 42 and the rearward end of the outer upper panel's cut edge 46/access opening 47, which is designated by the dimension D3, is less than about 9% of the minimum distance between the front and rear of the carton 10, which is at least generally designated by the dimension D1. More specifically, the dimension D3 is less than about 7% of the dimension D1. Even more specifically, the dimension D3 is less than about 5% of the dimension D1. Still even further specifically, the dimension D3 is less than, or equal to, about 3.3% of the dimension D1.
While the closure tab 26 is in the opened, releasably locked configuration illustrated in
While the closure tab 26 is in the opened, releasably locked configuration illustrated in
Whereas the arresting opening 48 is in the shape of a circular segment for the exemplary embodiment, the arresting opening 48 is in other shapes in alternative embodiments of the present invention. For example, the arresting opening 48 can alternatively be in the shape of a narrow slot or a right parallelogram, or the like.
The rear panel 24 is connected along a longitudinal fold line 68 to the right side panel 20. Lower and upper flaps 70, 72 are respectively attached to the rear panel 24 along lower and upper lateral fold lines 74, 76. The left side panel 22 is connected to the rear panel 24 along a longitudinal fold line 78. A lower flap 80 is connected along a lower lateral fold line 82 to the left side panel 22. The outer upper panel 38 is connected along an upper lateral fold line 84 to the upper edge of the left side panel 22. An outer attachment panel 85 is connected by a lateral fold line 87 to the outer upper panel 38.
Regarding the security tab 36 in the outer upper panel 38, a tear line 86 extends around and thereby defines the security tab 36. After the carton 10 is erected from the blank 54, an end user removes the security tab 36 by tearing along the tear line 86. As indicated above, removal of the security tab 36 exposes the outer opening 40 (
The outer front panel 16 is connected to the left side panel 22 along a longitudinal fold line 90. The longitudinal fold line 90 extends from the bottom edge of the outer front panel 16 to the intermediate lateral fold line 28. The closure tab 26 is connected to the outer front panel 16 at the intermediate lateral fold line 28. In addition, the closure tab 26 is releasably connected to the upper portion of the left side panel 22, and an end of the outer upper panel 38 along a tear line 92 that is interrupted by the access opening 47 in the outer upper panel 38. The tear line 92 extends upwardly from the inner end of the lateral fold line 28. Alternatively, all of the tear line 92 can be in the form of a cut line rather than a tear line. The upper lateral fold line 30 extends across the closure tab 26. A lower flap 94 is connected to the outer front panel 16 at a lower lateral fold line 96.
An acceptable method for erecting the carton 10 from the blank 54 will be described in the following, in accordance with the exemplary embodiment of the present invention. Folding is performed along the longitudinal fold lines 58, 60, 68, 78, 90 so that the inner attachment panel 56 is positioned within the cartons' interior and the outer front panel 16 overlaps the lower portion of the inner front panel 18. More specifically in this configuration, the inner attachment panel 56 is securely fastened to a marginal portion of the inside-facing surface of the left side panel 22, and the outer front panel 16 is securely fastened to the inner front panel 18.
In accordance with the exemplary embodiment of the present invention, the bottom end 14 of the carton 10 is defined by the lower flaps 70, 94, 64, 80 which are located at the lower margin of the blank 54. Assembly of the bottom end 14 of the carton 10 can begin with folding the lower flaps 70, 94 inwardly. Thereafter, the lower flaps 64, 80 are folded inwardly so that they overlap the lower flaps 70, 94, and there is also overlapping between the lower flaps 64, 80. One or more of the lower flaps 70, 94, 64, 80 are fastened to each other to securely close the bottom end 14 of the carton.
In accordance with the exemplary embodiment of the present invention, the top end 12 of the carton 10 is defined at least by the upper flap 72, inner upper panel 32, and outer upper panel 38 which are located at the upper margin of the blank 54. Assembly of the top end 12 of the carton 10 can begin with folding the upper flap 72 inwardly, and then folding the inner upper panel 32 inwardly. Thereafter, and after tearing all along the tear line 92, the closure tab 26 is folded along the upper lateral fold line 30 so that the respective portion of the closure tab 26 (i.e., the portion which includes the arresting opening 48) overlies a portion of the inner upper panel 32 and covers the inner opening 42. Finally, the outer upper panel 38 is folded over the portion of the closure tab 26 that includes the arresting opening 48, and the outer attachment panel 85 is folded so that it overlaps the upper marginal portion of the outer side of the right side panel 20. The outer attachment panel 85 is securely fastened to the upper marginal portion of the outer side of the right side panel 20.
The above-discussed fastening carried out during the erection of the carton 10 from the blank 54 can be via adhering, such as with an adhesive substance such as glue or rubber cement, or any other adhesive substance that is suitable. Alternatively or in addition, the fastening can be via any other conventional means.
In accordance with the exemplary embodiment of the present invention, a fold line can be any at least somewhat line-like arranged, although not necessarily straight, form of weakening that facilitates folding therealong; and a tear line can be any at least somewhat line-like arranged, although not necessarily straight, form of weakening that facilitates tearing therealong. More specifically, but not for the purpose of narrowing the scope of the present invention, conventional fold lines include: a crease, such as formed by folding; a score line, such as formed with a blunt scoring knife, or the like, which creates a crushed portion in the material along the desired line of weakness; a cut that extends partially into the material along the desired line of weakness, and/or a series of spaced apart cuts that extend partially into and/or completely through the material along the desired line of weakness; or various combinations of these features. More specifically, but not for the purpose of narrowing the scope of the present invention, conventional tear lines include: a cut that extends partially into the material along the desired line of weakness, and/or a series of spaced apart cuts that extend partially into and/or completely through the material along the desired line of weakness, or various combinations of these features.
As a more specific example, one type of conventional tear line is in the form of a series of spaced apart cuts that extend completely through the material, with adjacent cuts being spaced apart slightly so that a nick (e.g., a small somewhat bridging-like piece of the material) is defined between the adjacent cuts for typically temporarily connecting the material across the tear line. The nicks are broken during tearing along the tear line. The nicks typically are a relatively small percentage of the tear line, and alternatively the nicks can be omitted from or torn in a tear line such that the tear line is a continuous cut line.
In situations where cutting is used to provide a fold line, typically the cutting will not be overly extensive in a manner that might cause a reasonable user to incorrectly consider the fold line to be a tear line. In contrast, where nicks are present in a cut line (e.g., tear line), typically the nicks will not be overly large or overly numerous in a manner that might cause a reasonable user to incorrectly consider the subject line to be a fold line.
In accordance with one specific version of the exemplary embodiment of the present invention, all of the fold lines in the blank 54 are score lines, except that each of the score lines of the fold lines 58, 60, 66 further includes a series of spaced apart cuts that extend along the score line. Acceptable dimensions for this specific version of the blank 54 of the exemplary embodiment of the present invention are described in the following, with reference to
In accordance with the exemplary embodiment of the present invention, the blank 54 is constructed of paperboard, or the like, and the paperboard can optionally have one or more other materials coated or laminated thereon. For example, paperboard typically weighs at least about 100 pounds per ream, with each sheet of paperboard typically being at least about 0.012 inches thick, so that it is heavier and more rigid than ordinary paper. The blank 54 can also be constructed of other materials, such as cardboard or any other material having properties suitable for enabling the carton 10 to function at least generally as described above.
For example, one or both sides of the blank 54 can be coated with a clay coating, or the like. The clay coating can be printed over with product, advertising, and other information or images. The blank 54 may then be coated with a varnish or other protective coating to protect any information printed on the blank. The blank 54 may also be coated with, for example, a moisture barrier layer, on either or both sides of the blank 54. Other coating and laminating upon the blank 54 is also within the scope of the present invention.
The directional references, for example “top”, “front”, “left side” and “longitudinal”, referred to in this Detailed Description section are used for ease of understanding rather than for the purpose of narrowing the scope of the present invention. For example and alternatively, the front can be referred to as the rear or a side, and the other directional references can also be modified and/or exchanged.
It will be understood by those skilled in the art that while the present invention has been discussed above with reference to exemplary embodiments, various additions, modifications and changes can be made thereto without departing from the spirit and scope of the invention as set forth in the following claims.