US 3592143 A
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United States Patent  Inventor Martln Krone 60 E. 42nd St, New york, N.Y. 10017  Appl. No. 786,895 [22) Filed Dec. 26, 1968 I45] Patented July 13, 1971  KNOCKDOWN TABLE 2 Chllns, 8 Drawing Figs.
 US. 108/115, 108/153, 297/440  IILCI. A47b3/06  FleldolSearch 108/111, 115.154;211/l35,73;248/459,174,I52; 297/442, 457
 References Cited UNITED STATES PATENTS 1,896,721 2/1933 Richards 108/115 X 2,141,399 12/1938 Luhn 108/115 X 2,240,024 4/1941 Stone 108/1 15 2,244,912 6/l94l Kollandet 248/174 X 2,361,875 10/1944 Sachs 108]] 14 2,399,143 4/1946' Rudy 4. 211/135 X 2,438,108 3/1948 Barlcr 211/135 2,744,713 5/1956 DeVillers. 108/[15 3.126.140 3/1964 Lizan 108/115 3,438,345 4/1969 Lasaine .1 108/1 15 Primary Examiner-Francis K. Zugel Attorney- Friedman & Goodman ABSTRACT: A knockdown table formed of a cardboard blank which has been adapted by means of a plurality of fold lines and score lines in such a way that when the blank is folded along said fold lines a table having an imperforate top will be defined thereby, the score lines defining removable sections which, when removed, are effective to form the legs of the table, and are further adapted to be delineated into corner locking and supporting members which will underlie and act as support for the resulting standing table structure.
SHEET 1 BF 2 28 36 34 36 3O 26 36 3440 36 IO 28 INVISNI UH FIG. 4 MAH'IIN KHUTHI PATENTED Juuslsn 3,592 143 SHEET 2 [1F 2 INVEN'HM.
F I G 8 MARTIN KRONE 5 mg M u v wu Atturnvys KNOCKDOWN TABLE BACKGROUND OF THE INVENTION l. Field of the Invention This invention relates generally to a knockdown construction, and more particularly, to a foldably constructible table formed ofa suitably adapted cardboard blank.
2. Description of the Prior Art Knockdown boxes of cardboard construction are of course well known. They are formed of a cardboard blank which has been suitably adapted with fold lines, cut lines or score lines, in a particular sequence, in such a way that when folded a box will be formed having the desired characteristics. One of the advantages of this knockdown-type construction is that the boxes may be stored in the flat, unfolded blank condition, ready for quick assembly into a box when needed It would be equally desirable and advantageous, if a knockdown construction could be provided which would fold into a table. However, a table of this type would, of necessity, have to be of sturdy construction, since it is of relatively flimsy cardboard construction.
SUMMARY OF THE INVENTION It is, therefore, among one of the principal objectives of the invention to provide not only a knockdown table formed ofa suitably adapted cardboard blank, but also a table which, when assembled, is of sturdy construction.
In accord with the invention, a foldably constructible table, i.e. knockdown table is provided, formed of a cardboard blank, which has been adapted by means of a plurality of fold lines and score lines, in such a way that when the blank is folded along said fold lines a table having an imperforate top will be defined thereby, the score lines defining a pair of opposing removable sections which, when removed, are effective to form the legs of the table and which, removable sections, are further adapted to be delineated into corner locking and supporting members which will underlie and act as support for the resulting standing table structure.
BRIEF DESCRIPTION OF THE DRAWING The invention will be hereinafter more fully described with reference to the accompanying drawing, in which:
FIG. 1 is a plan view of a blank utilized in the assembly ofa table pursuant to the present invention;
FIG. 2 is a fragmented, front view, showing the blank of FIG. I in the folded, compact shipping condition;
FIG. 3 is a top plan view ofa corner-supporting member for the invention table;
FIG. 4 is a fragmented, exploded view. in perspective, of a corner-supporting member and its associated table corner to be supported;
FIG. 5 is a view, similar to FIG. 4, except as here shown the corner-supporting member is in the attached position;
FIG. 6 is a view in perspective of the table formed from the blank of FIG. 1;
FIG. 7 is a top plan, fragmented, partially sectional view of table shown in FIG. 6; and
FIG. 8 is a front view of the table looking towards a pair of supported corners from within the interior of the table.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the figures of the drawing, FIG. 1 illustrates a blank 10 of fluted cardboard of conventional construction, the blank as here shown being essentially rectangular in configuration. The blank 10 is provided with a pair of parallel opposing transversely oriented first and second fold lines I2 and I4, respectively, which, in turn, define a pair of parallel opposing leg-forming panels I6, and an intennediate imperforate tabletop panel I8 therebetween. The blank I0 is also provided with a pair of parallel opposing longitudinally oriented third and fourth fold lines and 22, respectively,
said third and fourth fold lines being inwardly directed from and adjacent to the parallel opposing longitudinal edges 24 and 26 of the blank, and defining, in turn, corner-forming flaps 28 and 30. Each corner-forming flap 30 is intermediate a pair of cornenforming flaps 28, so that corner-forming flaps 30 bound tabletop l8 or its two longitudinal sides formed by fold lines 20 and 22 and corner-forming flaps 28 bound each leg-forming panel 16 on its two extensions of longitudinal fold lines 20 and 22. Each corner-forming flap 28 and 30 is foldable, along the respective portion of the longitudinal fold line it bounds, into cooperating positions with the leg-forming panels 16 and table top panel I8 so as to form corners for the table as will be subsequently more fully shown.
A cooperating pair of outwardly diverging fold lines 32 are provided at each of the intersections 34 of the first, second, third and fourth fold lines 12, I4, 20 and 22, each fold line 32 terminating in a slot 36 in linear relation therewith, slots 36 being cut into the longitudinal edges 24 and 26 of the blank I0. Thus, fold lines 32 and slots 36 define four triangular tuckin flaps 40.
In each leg panel I6 there is provided a generally U-shaped score line 42 which defines a removable section 44, the removal of which will define legs for the table, as will be seen. Each section 44, in turn defines a pair of tabs 46, bounded by regular (as opposed to irregular) score lines, which will ultimately form the corner supports for the table as will be also seen. Each tab 46 is generally triangular-shaped, and at the apex of each is provided an inwardly directed notch 48 defined by suitable score lines. In other words, when tabs 46 are removed from the blank along their respective score lines on the blank, they will appear as at FIG. 3. Selvage pieces 50 are also provided in removable section 44 immediately alongside tabs 46; however, these are not necessary to the invention and could be omitted from removable section 44.
A medial transverse fold line 52 is also provided on blank [0, for a reason now to be discussed. When it is desirous to store or ship the table blanks [0 in folded, compact condition, what is done is to first fold the opposing leg-forming panels I6 and their respective corner flaps 28 inwardly upon themselves along fold lines 12 and I4, and then the blank is folded inwardly again along fold line 52 to yield the flat compact folded blank of FIG. 2. This also serves to protect the removable sections 44 and keep the tabs 46 in a flat condition, since it is an important feature of the invention that the tabs 46 be not bent out of shape.
Describing now the assembly of the table 100 of the invention, and with reference specifically to FIGS. 1, and 38, inclusive, with the blank in the condition as shown in FIG. I, the removable sections 44 are removed from the blank I0 forming tabs 46 with the pieces of selvage 50 being discarded. As mentioned, tabs 46 are triangular in shape and have an inwardly directed notch 48 provided at the apex of the triangle along the perpendicular bisector thereof (not shown). Also as mentioned, it is important that tabs 46 not be bent out of shape; this is assured by taking the tab 46 from flat removable section 44.
The table 100 is then formed by folding the blank along the various fold lines (except fold line 52). To wit, the blank 10 is folded inwardly along longitudinal fold lines 20 and 22 at about angles. Next, in sequence, each tuck-in flap 40 is pushed inwardly, i.e. towards what will be the interior of the table, until the corner-forming flaps 28 and 30 are in edge-toedgc abutment. While the flaps 28 and 30, with tuck-in flap 40 inwardly projected therebetween, are so related and held in place. the tab 46, via notch 48 being slidingly fitted over tuckin flap 40, locks the corner 102 in position. By virtue of the regular triangular shape of tab 46, the regular edges of two of the sides of the triangle abut and underlie the respective corner which it is locking and thus tab 46 acts as a corner-supporting member for the standing table. It can now be seen why it is important that tab 46 be maintained in a flat condition, and that is to assure a secure locking of tuck-in flaps 40 as well as furnishing support to each corner and the table thereby by the edgewise abutment described hereinabove. It is to be noted that when assembled, corner-forming flaps 28 and legforming panels 16 form the four legs 104 of the table, mentioned earlier Thus, in accordance with the invention, a foldably constructible table is provided which is not only easily assembled but is also ofa sturdy construction by virtue of the feature of the corner-locking tab 46 which also acts as a supporting member for the standing table. The invention knockdown table is particularly suitable for picnics, camping trips, for children's games, for card playing on commuter trains; in other words, in any situation where a temporary table of light but strong construction is required.
What I claim is:
l. A foldably constructible table comprising a construction blank fabricated of cardboard having an elongated, rectangular shape, at least two transversely oriented first and second fold lines in said blank delineating two leg-forming panels at opposite ends thereof and an intermediate imperforate tabletop panel, at least two longitudinally oriented third and fourth fold lines respectively located in said blank adjacent each longitudinal edge thereof delineating corner-forming flaps foldable along each of said fold lines into cooperating positions with said leg-forming and tabletop panels so as to form corners along each of the longitudinal extents of said panels, a cooperating pair of outwardly diverging fold lines in said blank at each of the four intersections of said first, second, third and fourth fold lines and delineating a separate one of four triangular tuck-in flaps operatively effective to be projected to the interior of the volume bounded by said table following the folding construction thereof, and in each said leg-forming panel a shaped centrally located score line delineating a removable section effective to form legs therein upon said removal therefrom, at least one said removable section being delineated into plural tabs each having regular sides and each having a notch therein of an extent adapted to accommodate one said inwardly projected tuck-in flap so as to maintain said inwardly projected position thereof, whereby said table is foldably constructible from said blank.
2v A blank for a foldably constructible table as defined in claim I wherein each of said pair of outwardly diverging lines terminates in slots extending inwardly into said construction blank from the longitudinal edges thereof.