US 3270914 A
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Description (OCR text may contain errors)
WRAP-AROUNi3 CARTON BLANK WITH END PANEL LOCK Filed July 17, 1964 E. J. GRASER Sept. 6, 1966 5 Sheets-Sheet l wfw rm;
FIG l EARL Fggggg ATTORNEY Sept. 6, 1966 E. J. GRASER 3,279,934
WRAP-AROUND CARTON BLANK WITH END PANEL LOCK Filed July 17, 1964 3 Sheets-Sheet 2 J25 l ,4 f 2 I:
[I6 2 EARL J '5X5$ BY (4% Sept. 6, 1966 E. J. GRASER 3,270,914
WRAP-AROUND CARTON BLANK WITH END PANEL LOCK Filed July 17, 1964 5 Sheets-Sheet 5 INVENTOR. EARL J GRASEP FJM ATrnQ VEV United States Patent 3,270,914 WRAP-AROUND CARTON BLANK WITH END PANEL LOCK Earl J. Graser, Monroe, La., assignor to Olin Mathieson Chemical Corporation, a corporation of Virginia Filed July 17, 1964, Ser. No. 383,373 2 Claims. (Cl. 220112) The present invention relates to carton blanks of the so-called wrap-around style utilized to encircle a plurality of similar articles to develop a unitary package or assemly of articles.
The invention disclosed and claimed herein is an improvement over the disclosure of US. patent application S.N. 304,448, filed August--26, 1963, by Earl J. Graser and Richard L. Schuster, now US. Patent No. 3,181,727, issued May 4, 1965.
It is a primary feature of the present invention to provide a wrap-around carton blank which includes end wall panels (partial or full length) including means for locking the panels to the bottom of the carton.
A wrap-around carton blank for encircling and packaging a plurality of articles into a unitary assembly embracing certain features of the present invention may comprise integral end wall flaps or panels and a bottom wall defining inner and outer overlapping bottom panels, means for locking at least one end wall panel to the bottom wall comprising a locking tongue hinged to one of said overlapping bottom panels and .a mating slot formed in said end panel, said tongue being formed with a shoulder operative when the tongue is inserted into the slot to make a locking connection with said panel.
Other features and advantages of the present invention will become more apparent from an examination of the succeeding specification when read in conjunction with the appended drawings in which:
FIG. 1 is a plan view of a typical wrap around carton blank formed with opposed wing elements;
FIG. 2 is a plan view of a typical wrap around carton blank including full length end wall panels;
FIG. 3 shows a partially completed carton, and;
FIG. 4 ShOWs the finished carton with the end wall panels tucked and locked.
Referring now to FIGS. 1 and 2, the reference numeral indicates the body portion of a wraparound carton blank utilized to encircle a plurality of articles to develop a package in well known fashion.
The body portion 10 is generally elongated or rectangular and includes side edges 11 and 12.
Integrally formed with the body of the blank and integrally connected at opposed side edges are wing elements 13 and 14.
Since the present invention is directed to the conformation of the wing elements 13 and 14, details of the body portion 10 will be described only to the extent necessary to identify the conventional features of a wrap around carton blank.
The body 10 comprises panels 16 and 17 which form a bottom wall, side walls 18 and 19, and top Wall 21. The carton lock structure, indicated by the reference numerals 22 and 23, is similar to the arrangement disclosed and claimed in US. Patent 3,098,583 issued to Sherman et al. on July 23, 1963.
Tabs 24 and 26 provide sockets for the bottom and top of the articles packaged in a manner which will become more apparent hereinafter.
The lines referenced 27 and 28 provide a weakened area in the blank to facilitate easy opening.
Circular cutouts 29 provide finger access by which one may grasp the completed package.
Referring now in detail to the wing elements 13 and 14 in FIG. 2, note that these elements are provided with 3,270,914 Patented Sept. 6, 1966 ice.
a plurality of score lines effective to divide the wing elements into various panels and to provide hinge lines or score lines about which the various panels are rotated.
Since wing elements 13 and 14 are identical, only panel 13 will be described in detail.
Wing element 13 is hinged to the body 10 along score lines 31, 32 and 33.
Score lines 31 and 34 define end wall panel 37 and score lines 33 and 36 define end wall panel 38.
Note that end wall panels 37 and 38 are of suflicient length to extend to the bottom wall of a fully erected package (see FIG. 4). In addition, panels 37 and 38 enclose the ends of the package.
Score lines 34, 39, and 41 define a generally triangular tuck panel 42. Score lines 32, 41 and 44 define a second generally triangular tuck panel 43 while score lines 36, 44 and 46 define a third generally triangular tuck panel 47.
Note that tuck panels 42, 43 and 47 have adjoining or converging apices as indicated by the reference numeral 48. Score lines 39 and 46 define tuck flaps 49 and 51 integrally hinged by score line 50.
Wing element 14 is similarly scored to define similar panels and similar hinge lines. Thus, wing element 14 comprises end walls 52 and 53, generally triangular tuck panels 54, 56 and 57 and tuck flaps 58 and 59 hinged at score line 60. End wall panels 37, 38, 52 and 53 .are each formed with a slot 50 operative to receive and make locking connection with locking tongues 60 and 70 hinged to inner bottom wall panel 17 in the manner in FIG. 3.
As shown in FIG. 3, the body 10 of the blank is wrapped around a plurality of articles such as six beverage bottles 61-62 in well known fashion to develop a package of articles where the package comprises top wall 31, side walls '18 and 19 and bottom wall 63.
Wing element 13 is shown in the unfolded condition projecting outwardly at one edge while wing element 14 (not shown) projects similarly at the opposite edge from the body 10 of the blank. After the package, represented by FIG. 3, is formed, wing element 13 is rotated about score lines 31, 32 and 33.
Application of pressure by an instrument, such as a finger device 45, indicated in dotted lines at the intersecting apices 48 and in the direction shown by the arrow of FIG. 3, will cause the trianglar tuck panels to move inwardly to the position shown in FIG. 4. In this condition end wall panels 37 and '38 fall normal to the top wall 21 of the package and are retained in this position by the tucked position of the triangular panels 42, 43 and 47.
The end wall panels 37 and 38 fully enclose one end of the package; correspondingly, end wall panels 52 and 53 fully enclose the opposite end of the package.
And is apparent in FIG. 4, the tongue 60 having a barbed end 71 is rotated about its score line 62 so that the barbed end thereof is received within and creates a locking connection with one or both end wall panels 37-38.
Thus, the tongue 60 defines a locking means operative to keep the end walls from springing outwardly to the position of FIG. 3 and the tongue 60 also aids in retaining the bottoms of the packaged articles 61-62 in place.
If desired, the locking tongue 60 may be hinged to the outer panel 16 and may engage and lock with only one end wall panel as desired.
In some arrangements of the invention it may be desirable to make a cut-out in the end Wall panels such as the triangular cut-out shown in dotted lines at in FIG. 1 in lieu of the slots 50-50.
It is intended that the locking tongue 70 function in similar fashion.
The present invention is not limited to full length end wall panels; the locking device is equally effective where the end Wall panels are less than full length. The locking tongues 6070 are elongated or shortened as necessary to engage and lock the end Wall panels.
It is anticipated that a wide variety of modifications of the present invention may be devised both as to the blank and the method of folding the blank without departing from the spirit and scope of the present invention.
What is claimed is:
1. In a wraparound carton of the type having a bottom wall defined by inner and outer overlapping bottom panels and two end walls each comprising a set of two end Walls flaps disposed generally perpendicular to said bottom wall, the improvement comprising the opposite end portions of said bottom wall each having a single locking tongue hingedly connected thereto intermediate the length thereof, a slot in each set of end wall flaps, each said slot extending inwardly from the inner edge portion of each said end wall flap, each of said tongues having oppositely disposed shoulder, portions, one of saidshoulderportions of'each of said tongue operative to be inserted in said slot of one end wall flap of one set and the other shoulder portion of said tongue operative to be inserted in the slot of the other end wall flap of said set. a
2. The carton as set forth in claim 1 wherein said slots are generally triangular.
References Cited by the Examiner UNITED STATES PATENTS 2,973,129 2/1961 Stone et a1 229-40 X 3,128,010 4/1964 Forrer 220ll2 3,163,321 12/1964 Weiss 220113 3,167,214 1/1965 Mahon 22940 X 3,176,902 4/1965 Champlin 22940 GEORGE O. RALSTON, Primary Examiner.