Tobacco products, such as chewing tobacco, snus or moist snuff, are provided in different forms of packaging.
Provided in an embodiment is a blank of foldable material for forming a sleeve, comprising: pull tab, catch, back cover, front, binding, slot and middle panels for forming respective grip and catch portions of a latch, back cover, front, top, slotted back and dividing walls of the sleeve, wherein the pull tab, the back cover, front, binding, slot and middle panels comprise two substantially parallel sides and two substantially parallel ends which are substantially perpendicular to the sides, the pull tab panel connected to the catch panel by a first fold line, the catch panel comprises ends each having a first part which tapers outward from the first fold line to a locking point and a second part which tapers inward to a corner stop where the catch panel joins the back cover panel, the back cover panel is connected to the front panel by a second fold line, the front panel is connected to the binding panel by a third fold line, the binding panel is connected to the slot panel by a fourth fold line, the slot panel is connected to the middle panel by a fifth fold line, a slot in the slot panel parallel to the sides of the slot panel, the slot comprising a cut-out defined by spaced apart parallel short and long sides wherein the short side is closer to the catch panel, the blank being foldable to form the sleeve defining a recess open at ends thereof with the middle panel dividing the recess, the back cover panel covering a portion of the slot panel and the catch panel can be latched in the slot such that the locking points releaseably engage ends of the slot with the pull tab panel overlying the catch panel and protruding outwardly from the slot.
An embodiment of a method of folding the sleeve from the blank comprises folding back the pull tab panel along the first fold line, folding forward the back cover, front, binding, slot and middle panels of the blank along the second, third, fourth and fifth fold lines, overlying the catch panel with the folded back pull tab panel, inserting the catch panel and a portion of the overlying pull tab panel through the slot such that the locking points releaseably engage ends of the slot to create a latching sleeve.
The following description of the several embodiments is for illustrative purposes and is not intended to limit the disclosed invention to the described embodiments. In the following descriptions of the several embodiments, references to specific orientations in the drawings, for example, up, down, left, right, front, back, is to facilitate the description and is not intended to limit the embodiments to a particular orientation.
According to an embodiment, a plurality of articles, for example, snus packets, are releaseably attached to inner surfaces of a sleeve open at left and right ends and having a catch panel latched within a slot on a back of the sleeve to form a package. Preferably, a middle panel of the sleeve separates the interior of the sleeve into two recess portions open at left and right ends each containing articles releaseably attached to an inner surface of a respective panel. A pull tab panel connected to the catch panel preferably provides a gripping surface for a user to easily pull the catch panel out of the slot to open the package.
Once opened, the package preferably unfolds to expose articles releaseably attached to inner surfaces of front and back panels. The sleeve opens with the pull tab panel at one side and the middle panel unfolded at the other side, the front and back panels therebetween. In a preferred embodiment, the middle panel can be a tear-off panel and may be a coupon, advertisement, game piece or the like. When the panels are folded, the catch panel can be inserted in the slot in the back panel thus re-closing the package. The ends of the catch panel are preferably caught by ends of the slot to hold the package closed by friction.
The blank 100 comprises a plurality of substantially rectilinear panels and a catch panel connected along adjacent sides thereof. The rectilinear panels each have two substantially parallel sides and two substantially parallel ends which are substantially perpendicular to the sides. The catch panel has two substantially parallel sides and two faceted ends, each end having first and second parts which extend outward from the sides to meet at an apex. With reference to
The catch panel 110 has an inner surface 210, an outer surface 310 and two ends 112, 114 and is connected to a back cover panel 230. Each end 112, 114 comprises first and second parts. The first (lower) end 112 has a first part 116 which tapers outward from the first fold line 128 to a locking point 120 and a second part 118 which extends inward to a first corner stop 111 at a first side of the back cover panel 230. The second (upper) end 114 has a first part 122 which tapers outward from the first fold line 128 to a locking point 126 and a second part 124 which extends inward to a second corner stop 113 at the first side of the back cover panel 230. Preferably, the first and second parts 116, 118 of the first end 112 are symmetrical about the locking point 120 and the second end 114 is a mirror image of the first end 112. Although the first and second parts of the first and second ends are shown as straight, the first and second parts of the first and second ends can also be curved.
Preferably, the sides of the back cover panel 130 are longer end to end than the sides of the pull tab panel 104 and the catch panel 110. Preferably, the catch panel 110 is centered on the first side of the back cover panel 130. The back cover panel 130 has an inner surface 230, an outer surface 330 and is connected to the front panel 140 along a second fold line 138 defining a second side of the back cover panel 130.
The front panel 140 has an inner surface 240, an outer surface 340 and is connected to a binding panel 150 along a third fold line 148. The binding panel 150 has an inner surface 250, an outer surface 350 and is connected to a slot panel 160 along a fourth fold line 158.
The slot panel 160 has an inner surface 260, an outer surface 360 and is connected to a middle panel 190 along a fifth fold line 178. The middle panel 190 is at a right side of the blank 100, but is folded into the middle of the sleeve 480 formed of the folded blank 100 (
The slot panel 160 has an elongated slot 161 defined by a slot cut-out 162 and an opening created by a slot flap 170 opening. The slot 161 is of variable size depending on the position of the slot flap 170. The slot cut-out 162 is an opening defined by parallel short and long sides 164, 166 spaced apart by ends 172, 174. Preferably, the slot 161 is centered end-to-end on the slot panel 160 to align with the catch panel 110 and is parallel to the sides. Preferably, the slot 161 is closer to the fifth fold line 178 side-to side. Preferably, the slot 161 is spaced about one-third of the slot panel 160 width from the fifth fold line 178.
Preferably, slits 171, 173 extend from the slot cut-out ends 172, 174 beyond the long side 166 of the slot cut-out 162 to a flap flex line 168 parallel to and spaced apart from the long side 166 by about a distance equal to the width of the slot cut-olit 162. The portion of the slot panel 160 within the region defined by the long side 166, slit extensions 171, 173 of the ends 172, 174 and the flap flex line 168 is the slot flap 170 which resists movement and holds the pull tab tuck portion 108 and catch panel 110 in the slot 161. When the slot flap 170 opens from the force of a user pulling the pull tab 104 grip portion 106, the slot 161 opening widens in the direction from the short side 164 to the perforated line 168. Preferably, the slot 161 lengthens in the end-to-end direction from the slot flap 170 opening due to the direction of the slit extensions 171, 173, for example, when the slit extensions 171, 173 are non-parallel and taper outward toward the fifth fold line 178. When the slot flap 170 closes, the slot cut-out 162 remains open.
In a preferred embodiment, the slot cut-out 162, the slot flap 170 and the slot 161 are substantially trapezoidal. Preferably, the slot cut-out ends 172, 174 meet the long side 166 at an angle from about 30 degrees to about 60 degrees, for example, from about 40 to about 50 degrees. Preferably, the slit extensions 171, 173 meet the flap flex line 168 at an angle from about 30 degrees to about 60 degrees, for example, from about 40 to about 50 degrees. Also preferably, the slot cut-out ends are the same length as each other and the slit extensions 171, 173 are the same length as each other. However, it is also preferred that each corner where a slit extension 171, 173 meets the flap flex line 168, is slightly rounded. Such a rounded corner can, for example, prevent tearing of the slot panel 160 at the corners of the slot flap 170. In a preferred embodiment, the flap flex line 168 is a perforated line.
The middle panel 190 has an inner surface 290, an outer surface 390 and is at the opposite side of the blank 100 from the pull tab panel 104.
The packet back 422 is preferably removably attached to the inner surface 240 of the front panel 140 and/or the inner surface 260 of the slot panel 160 with an adhesive 440 or the like (for example, glue, quick-release glue, tape, VELCRO, etc.). The adhesive is preferably of limited strength such that the packet 402 can be easily removed from the surface 240, 260 by a user. Preferably, the adhesive 440 is in bonding regions 430 of the inner surfaces 240, 260, which do not interfere with folding of the blank 100 and latching of the catch panel 110 to form the sleeve and package. As shown in
The binding panel 150 is preferably folded forward about the third fold line 148 in a direction “E” to space the slot panel 160 apart from the front panel by the width of the binding panel 150 at one side of the front panel 140 adjacent the binding panel 150 as shown in
When articles 400 are attached to the front panel 140 and/or the slot panel 160, the articles 400 may also space the front panel 140 apart from the slot panel 160 (see, for example,
The pull tab panel 104 is folded in a direction of arrow “A” (
More specifically, when the leading edge 128 enters the slot cut-out 162, the first parts 116, 122 of the catch panel 110 ends 112, 114 slideably engage the ends 172, 174 of the slot cut-out 162 while the leading edge 128 wedges the slot flap 170 open. Preferably, the locking points 120, 126 are spaced apart by a distance greater than the long side 166 of the slot cut-out 162, but not too much larger as to inhibit entry and release of the catch panel 110. The first parts 116, 122 slideably engage the slit extensions 171, 173 as the catch panel widens to the locking points 120, 126. After the locking points 120, 126 pass through the slot 161 which is enlarged due to the deflection of the slot flap 170 about the flap flex line 168, the slot flap 170 returns to its starting position and captures the catch panel 110. The catch panel 110 is substantially inserted through the slot 161 and back cover 130 corner stops 111, 113 meet respective distal slot corner stops 117, 119 to prevent the sleeve 480 from closing further. Meanwhile frictional forces of the second parts 118, 124 against the respective slot ends 172, 174 hold the catch panel 110 in the slot 161 latching the sleeve 480 closed. The frictional forces of the slot long side 166 against the catch panel 110 inner surface 210 and the short side 164 against the pull tab 104 inner surface 204 also hold the catch panel 110 in the slot 161.
Although a user's fingers are shown in broken lines in
The package 500 of articles 400 in the sleeve 480 formed of the blank 100 (
A user can tug on the pull tab panel 104 grip portion 106 which protrudes from the slot 161 to overcome the frictional forces to unlatch the catch panel 110 from the slot 161 and open the sleeve 480. Preferably, the user can fold back the back cover panel 130 about the second fold line 138 and fold back the front 140, binding 150, slot 160 and middle 190 panels about the third 148, fourth 158 and fifth 178 fold lines to access articles 400 (
In a preferred embodiment the middle panel 190 can be a tear-off panel and may be a coupon, advertisement, game piece of the like.
As can be seen in
The latch design can be adapted to different packaging concepts. Referring now to
While the invention has been described in detail with reference to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made, and equivalents employed, without departing from the scope of the appended claims.