US 3829006 A
An improved folding paper-board carton formed of a unitary blank having longitudinal and transverse fold facilitating score lines whereby the blank is adapted to be formed into a carton, said blank including longitudinal and transverse tear facilitating score lines for the removal of a tear panel whereby the carton is readily convertible from a sturdy shipping container to a display and dispensing enclosure of increased efficiency and attractiveness.
Claims available in
Description (OCR text may contain errors)
Unite States Patent I 1 332,96 Spiegel Aug. 13, 1974  SHIPPING AND DISPLAY CARTON AND 3,620,438 11/1971 Wood 229/51 D X BLANK THEREFOR FOREIGN PATENTS OR APPLICATIONS  Inventor: Richard G. Spiegel, 4925 W. v 1,009,558 5/1957 Germany 229/5'1 TC Coventry, Hopkins, Minn. Primary Examiner-Donald F. Norton [221 Ffled' 1973 Attorney, Agent, or Firm-Arthur S. Caine  App]. N0.: 328,840
 ABSTRACT 52 us. (:1. 229/51 TS, 229/51 WB An improved folding P p Carton formed of a  int. Cl 865d 5/54 unitary blank having longitudinal and transverse fold 5 Field f Search 229 7 R, 7 R, 5 R, 5 5 facilitating score lines whereby the blank is adapted to 229/51 1) 51 3 51 20 44 R be formed into a carton, said blank including longitudinal and transverse tear facilitating score lines for the 5 References Cited removal of a tear panel whereby the carton is readily UNITED STATES PATENTS convertible from a sturdy shipping container to a dis- 2 1 15 673 4/1938 stompe 229/51 TS X play and dispensing enclosure of increased efficiency 2:953:293 9/1960 Anderson :IIIZIIIIIIIIH.. 229/51 T5 and attractweness' 3,113,713 12/1963 Green 229/51 WB 12 Claims, 7 Drawing Figures PATENTED AUG 1 31974 SHEET 2 [IF 3 PATENTED M1131 31974 3. B29 .006
sum 3 or 3 FIG, 6 o
LIFT TO OPEN SHIPPING AND DISPLAY CARTON AND BLANK THEREFOR This is a continuation-in-part application of Richard G. Spiegel, Ser. No. 114,980 filed 02/12/71, and now abandoned.
THE INVENTION This invention relates to the field of shipping and display containers, and more specifically to knock-down, set-up cartons formed from a one-piece blank, particularly designed to be folded into a safe container which is sufficiently sturdy for shipping purposes during which the carton may be stacked one upon the other, and atthe same time is especially well adapted for quick easy conversion to an inexpensive article display and article dispensing enclosure for use with articles which are of comparatively limited horizontal space area, or slender articles having a relatively high center of gravity, which articles might easily topple from the container if not suitably confined.
Containers used for shipping articles, particularly when plural articles are to be enclosed in a single container, are preferably parallelepipedic in conformation to facilitate stacking the containers in transport vehicles. After reaching their destination, such as a retail establishment, it is often very desirable that the same container be usable to display the articles in attractive fashion, often in a mass display. Frequently it is the practice that free standing stacks of such containers are made available so that customers may serve themselves, and the container then also serves a dispensing function as well. This multiple use of cartons is not broadly new.
My invention constitutes an improvement in multipurpose cartons for use with articles which are relatively tall compared with their base area, and which for attractive presentation or for other reasons must be displayed to potential customers in an upright position. This means that the display area must be tall, and also that the container must be so configured that even when converted to display use, it will resist the tendency of the articles displayed to topple from the container, while at the same time presenting them for maximum visual inspection and for easy removal.
Another controlling factor in the design of an efficient container that serves for both shipping and display purposes, which is also adapted for machine packing, which of course includes machine assembly of the carton itself. For this purpose it is desirable that the carton be formed of a single blank, and which, when opened for display purposes reveals clean non-ragged edges.
It is accordingly a principal object of the present invention to provide a new and improved one piece carton blank, and more especially to provide such a blank which can be readily formed into a rugged shipping container, and subsequently converted with ease into an efficient, attractive display enclosure for plural articles of relatively unstable equilibrium.
Another object of the invention is to provide a safe and relatively inexpensive shipping carton formed with an integral tear portion that can be easily removed and which is centered approximately in an area comprised of top and front body panels of the carton.
Another object is to provide a safe and relatively inexpensive shipping container formed with an integral tear portion that can be easily removed, leaving a clean and undisfigured edge and surface to the remainder of the container.
Various other objects, advantages, and features of novelty which characterize my invention are pointed out with particularity in the claims annexed hereto and forming a part hereof. However, for a better understanding of the invention, its advantages, and objects attained by its use, reference should be had to the drawing which forms a further part hereof, and to the accompanying descriptive matter, in which there is illustrated and described a preferred embodiment of the invention.
In the drawing:
FIG. 1 shows the carton blank of one embodiment in its unformed or undeveloped state;
FIGS. 2 and 3 show the blank formed into a shipping container;
FIG. 4 shows the shipping container converted to a display enclosure for articles within it;
FIG. 5 is a magnified section of the material or board forming the carton taken on the lines 55 of FIG. 1;
FIG. 6 shows the blank in a modified form in its unformed or undeveloped phase; and
FIG. 7 shows the second blank of the modification formed into a shipping container.
As shown in FIG. 1, my invention comprises a carton blank generally identified by the reference number 10,
and preferably made of double faced corrugated fiber board. The blank is symmetrical about a longitudinal axis identified by the broken line 11-11, which may advantageously extend perpendicular to the grain of the material. The blank has first and second longitudinal fold-facilitating score lines 12 and 13 and a plurality of transverse fold-facilitating score lines 14, 15, 16 and 17, by which it is divided into a back body panel 20 having transversely extending end tabs 21 and 22, a bottom body panel 23 having transversely extending tabs 24 and 25, a front body panel 26 having transversely extending end tabs 27 and 28, a top body panel 29 having transversely extending end tabs 30 and 31, and a closure tab 32. At the opposite end of the blank there is a printed surface 33 which receives adhesive material and forms a separate layer between the adhesive and the adjacent surface of the fiber board, as will be discussed hereinafter.
A tear panel 35 extending longitudinally across the whole of panel 29 and most of panel 26, and symmetrical about axis l111, is defined by a tear-facilitating score line generally identified by the reference numeral 36. The transverse extent of panel 35 is somewhat less than that of panels 29 and 26, so that it defines marginal portions 37 and 38 in top panel 29, and marginal portions 39 and 40 in front panel 26.
For reasons presently to be explained, line 36 is not everywhere the same along its length, but consists of completely cut portions indicated by solid lines, perforated portions, indicated by lines with simple cross markings, and special portions combining perforations with superimposed cuts through half the thickness of the material, indicated by lines with double cross portions. By a perforated portion is meant a series of cuts or punchings closely spaced along the desired line and passing all the way through the material.
Line 36 will now be traced in detail. It begins with a completely out portion 41 at one end of fold facilitating line 17 between top panel 29 and the closure tab 32, then includes as partially seen in FIG. 5, a short perforated portion 42, a special portion 43, another perforated portion 44, a cut portion 45 crossing the fold facilitating line 16, and a perforated portion 46, all extending in a direction generally parallel to axis 1111, to a completely out corner 47. From corner 47, line 36 extends transversely of axis 11-11 as a perforated portion 48, a completely cut central portion 49 and a perforated portion 50 to a second completely cut corner 51, and thence parallel to axis l1-11 as a perforated portion 52, a completely out portion 53 across line 16, a perforated portion 54, a special portion 55, and a perforated portion 56 to line 17, terminating as a completely cut portion 57 along line 17 to its end. Associated with completely cut portion 49 of line 36 are three further complete cuts 58, 59 and 60.
The blank just described may be produced in quantity by a suitably constructed die having cutting, creasing, perforating, and special rules suitably located and used in a suitable press. One such die has a base of 5/8 inch hard core maple plywood. The cutting rule is 0.937 inch beveled steel with 5/16 inch l/2 inch hard rubber glued to each side. The creasing rule for the fold-facilitating lines is a 0.900 inch steel rule. The perforating rule is 0.937 inch beveled steel rule, and the special rule is also 0.937 inch beveled steel rule, bevel ground to 0.918 inch every other 1/8 inch. Cutting is done from the inside of the blank. The material used was single walled corrugated fiber board (also known as double faced) i.e., one flat facing is glued to each side of the corrugated member. The material had a bursting strength of 200 pounds.
As shown on a magnified scale in FIG. 5, the board is composed of the flat outer faces 10a and 100 glued to the opposite sides of the corrugated center portion 10b. This figure shows the three different characteristics of the tear line 36. At the right of the figure, the completely cut portion 41 is shown, which obviously offers no resistance. The special portion 43 is shown at the left of the figure; here the lower face 100 of the board is completely cut and the cut extends partially through the center portion 10b, while the upper face 10a has spaced perforations giving some strength to that part of the tear line. The portion 42 at the right of the figure between portions 43 and 41 has perforations between which are interconnected portions of the three parts of the board which will give greater strength to that part of the tear line 36.
In use a blank 10 is placed in a suitable packaging machine, and the designated quantity of articles (here shown as tall cylinders 61) is deposited on bottom portion 23, as suggested by the dotted circles 62 in FIG. 1. The blank is folded along lines 14, 15, 16 and 17, to encircle the articles and closure tab 32 is secured to the printed surface 33 located at the upper edge of back panel 20 with a quick-setting adhesive. Tabs 21, 22, 27 and 28 are folded inwardly against the articles, and tabs 24, 25, 30 and 31 are then folded against tabs 21, 22, 27, and 28, and secured with the same adhesive. After the adhesive has set, the container and contents bear the appearance of the structure shown in FIG. 2, and is ready for storage or shipment.
When it is desired to display the articles in the carton, the retailer presses his fingers against the front panel 26, just above the cut portion 49, depressing the material forming the tabs defined by cuts 58460, and inserts his fingers under the center of the tear panel 35. A steady outward and then upward pull on the tear strip separates the strip on either side of the cuts 58-60 along the portions 48, 50 and thence 46, 52 to the fold line 16 and thence through the perforated portions 44,
54. As the action continues, the length of the tear strip increases and the tendency to roughly tear the outer layer of the fiber board would increase; however, at this point the special cut portions 43 and 55 of the score line come into play and the separation across the top panel 17 is clean or precise to the fully cut portions 41 and 57. At this point, the lifting action is exerted wholly upon the closure tab 32 that is held by adhesive to the printed portion 33 of the back body panel 20. Since the ink of the printed portion 33 is between the inner surface of the tab 32 and the outer surface of the back panel 20, the break or separation occurs between these two surfaces, so that under the impetus of the lifting pull, the closure tab 32 will cleanly separate from the back panel 20, exposing the contents of the container 10 as seen in FIG. 4. The provision of the marginal portions 37, 38, 39 and 40 add materially to the usefulness of the carton by providing a degree of reinforcement to the lateral portions of the open carton. Moreover, these portions also act to prevent the contents of the carton, here shown as tall cylindrical containers, such as aerosol hair spray containers, from toppling out of the carton.
One of the major requirements of a display carton is attractiveness and neatness. I have found that the use of complete cuts at corners 47 and 51, at the points 45 and 53 where line 36 crosses line 16, and at 41 and 57 where line 36 coincides with line 17, prevents the occurrence of ragged unsightly tears at these points, where they are otherwise specially prevalent. It has also been observed that in the normal opening process, the direction of application of force is such that while the simple perforation gives a clean separation along the front body portion 26, there is a tendency to raggedness along the top panel 29; use of the special portions of line 36 at 43 and 55 gives an improved appearance to the top of the dispenser without unduly weakening the carton for shipping purposes.
A second embodiment of the knock-down set-up carton is illustrated in FIGS. 6 and 7. FIG. 6 shows the knock-down carton blank which is essentially spaced about a longitudinal center line 71 and thus is symmetrical about said center line. The blank has first and second longitudinal fold-facilitating score lines 72 and 73, and transverse fold-facilitating score lines 74, 75, 76 and 77 by which it is divided into a back body panel 80 having transversely extending end tabs 81 and 82, a bottom body panel 83 having transversely extending end tabs 84 and 85, a front body panel 86 having transversely extending end tabs 87 and 88, a top body panel 89 having transversely extending end tabs 90 and 91, and a carton closure tab 92.
A tear panel is essentially centrally arranged within the adjoining panels 86, 89, and is also symmetrical about the center line 71. The tear panel 95 is defined by an endless tear facilitating score line generally identified by the reference numeral 96. The transverse extent of tear panel 95 is somewhat less than that of body panels 86 and 89 between score lines 72 and 73, so that the score line 96 and fold facilitating lines 72, 73, define marginal portions 97, 98, in front panel 86 and marginal portions 99, 100 in top panel 89, Marits length, but consists of completely cut portions indicated by solid lines at the corners of the rectangle and perforated portions between the corners. By a perforated portion is meant a series of cuts or punchings closely spaced along the desired score line and passing all the way through the material. A completely out portion consists of a continuous punching which penetrates through the carton blank to assist in making a clean tear-away of the panel 95.
To assist in the desired removal of the tear panel 95, a circular punch-out portion 107 defined by a circular perforating tear facilitating line is provided. The punch-out portion 107 is adjacent the marginal area 104 between tear-facilitating line 96 in the top panel 89 and adjacent to the transverse fold facilitating scoreline 77.
In use a carton blank 70 is placed in a suitable packaging machine, and the designated quantity of articles (here shown as cylinders 61), which may be of any designated number, is deposited on the bottom body panel or second panel 83, as represented by the dotted circles 106.
The blank is folded along score lines 74, 75, 76 and 77 to encircle the articles 61. Thereafter, carton closure tab 92 is secured to the upper exterior of the back panel 80 with a quick-setting adhesive. Transverse end tabs 81, 87, are folded inwardly against the articles, and end tabs 84 and 90 are then folded against the tabs 81, 87, and secured with the same adhesive. Similarly transverse tabs 82 and 88 are folded against the standing articles 61, and then end tabs 85, 91 are folded against the tabs 82, 88, and also secured thereto with the same adhesive. After the adhesive has set, the container and contents bear the appearance of the structure in FIG. 7, and is ready for storage or shipment.
When the retailer receives the articles in the carton and desires to display the articles in the carton, he presses fingers against the punch-in tab 107, depressing the material forming the tab. Thereafter, he inserts his fingers in the hole of panel 89, resulting from the removal of tab 107. A steady upward pull on the tear strip 95 separates the strip on either side from the margin portions 99, 100, 104 and the separation action continues across the fold line 76. Thereafter an outward and downward action is applied across the fold line 76 and panel 86 to the horizontal bottom tear facilitating fold line shown in FIG. 7.
The transverse marginal portions 103, 104 of panels 86, 89, between the tear panel 95 and the transverse fold lines 75, 77, along with the longitudinal margin portions 97, 98, 99 and 100 following removal of panel 95 serve to strengthen the end walls of the carton. One end wall of the carton comprises marginal end tabs 82, 85, 88 and 91. By providing the horizontal structural members 103, 104, which tie in with margin members 98, 100, secured to end tabs 88, 91, an end is reinforced and thereby opposes lateral movement, thereby tending to maintain the shape of the set-up cartons following removal of the tear panel for display purposes.
Numerous objects and advantages of my invention have been set forth in the foregoing description, to-
gether with details of the structure and function of the invention, and the novelty thereof is pointed out in the appended claims. The disclosure, however, is illustrative only and changes may be made in detail, especially in matters of shape, size and arrangement of parts, within the principle of the invention, to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
I claim as my invention:
1. A carton blank symmetrically arranged on a longitudinal axis and having impressed thereon longitudinal and transverse-fold facilitating score lines parallel and perpendicular respectively to the center line or longitudinal axis of the carton blank thereby defining in sequence a first, back body panel, a second, bottom body panel, a third, front body panel, and a fourth, top body panel, all of said panels having transversely extending end flaps extending beyond the longitudinal fold facilitating score lines, a closure tab, and a tear panel, defined by an endless tear-facilitating scoreline, said tear panel having a smaller transverse extent than the portions of said body panels within the longitudinal fold facilitating score lines, said tear facilitating score line being symmetrical about said longitudinal axis and with an area extending into said third and fourth panels from the fold-facilitating line between the third and fourth panels.
2. A carton blank symmetrically arranged on a longitudinal axis or center line and having impressed therein longitudinal and transverse fold-facilitating score lines parallel and perpendicular respectively to the center line, said fold-facilitating score line defining in sequence a first, back body panel, a second, bottom body panel, a third, front body panel, and a fourth, top body panel, all of said panels having transversely extending end flaps, a closure tab, and a tear panel defined by a tear-facilitating score line, the tear panel being smaller in transverse extent than the portions of said body panels between the longitudinal fold facilitating score lines, said tear panel being symmetrical about said center line and with an area composed of adjacent portions of said third and fourth panels on opposite sides of the fold facilitating score line between said third and fourth panels.
3. A carton blank symmetrically arranged on a longitudinal axis and having longitudinal and transverse fold-facilitating score lines defining in sequence a first, back body panel, a second, bottom body panel, a third, from body panel, and a fourth, top body panel all having transversely extending end flaps, and a closure tab; and a tear panel, of smaller transverse extent than said body panels, symmetrical about said axis and extending across the entire fourth panel and a greater portion of the third panel, said tear panel being defined by a tearfacilitating score line extending, from the score line between said closure tab and said top panel, axially across said fourth panel, the score line between said fourth and third panels, and the major portion of said third panel to a first comer, thence transversely across said third panel to a second corner, and thence axially across said third panel, the score line between said third and fourth panels and said fourth panel to the score line between said fourth panel and said closure tab.
4. The invention defined by claim 3, together with means in said tear panel adjacent to said tearfacilitating score line and between said corners, for facilitating initiation of the tear.
5. The invention of claim 3, in which said tearfacilitating score line is for the most part perforated, but is a continuous cut at each of said corners.
6. The invention of claim 3, in which said tearfacilitating score line is for the most part perforated, but is continuous across the intersection thereof with the score line between said third and fourth body panels.
7. The invention of claim 3, in which the score line between said fourth panel and said closure tab includes completely cut end portions extending towards said axis as far as said tear-facilitating score line.
8. The invention of claim 3, in which the portion of said tear-facilitating score line extending across said fourth body panel combines through-perforations with a continuous cut of a portion of the thickness of said blank.
9. In a carton having a front panel, a top panel, a-
ing neat removal of said closure tab with said tear panel.
10. The invention according to claim 9, in which said pair of further tear-facilitating lines are less resistant to tearing across said top panel than they are across said front panel.
11. A carton blank symmetrically arranged on opposite sides of a longitudinal axis or center line and having both longitudinal and transverse fold-facilitating score lines which define in sequence a first, back body panel; a second, bottom body panel; a third, front body panel; and a fourth, top body panel; all panels having transversely extending end flaps; a closure tab; and a tear panel, defined by a tear facilitating score line, with smaller transverse extent than that of said body panels between the longitudinal fold facilitating score lines, and centered within said third and fourth body panels about said center line, said tear panel being defined by a tear-facilitating score line extending in part the width of the tear panel transversely in the fourth body panel at a position short of the score facilitating line between said closure tab and said fourth or top body panel, the tear panel being further defined by a pair of longitudinal lines from the ends of the transverse tear lines that extend in the direction of the center line across the remainder of said top body panel, then across the fold facilitating score line between said fourth and third body panels and longitudinally across the major portion of the third panel, and the ends of the longitudinally extending tear lines thence being connected by a tear line transversely of said third panel.
12. The invention defined by claim 11, together with means in said tear panel adjacent the transverse tearfacilitating line in said fourth panel, for facilitating initiation of the tear.