US2185510A - Folding box - Google Patents

Description

Jam A. w. .LOVEJOY 2,185,510

FOLDING BOX Original Filed Jan. 28, 1937 INVENTOR ART/ 0km Lama/or ATTORNEY Fat elated Jan. 2, 1940 I I UNITED STATES PATENT OFFICE Arthur W. Lovejoy, Lowell, Mass.

Application January 28, 1937, Serial No. 122,736 Renewed April 11, 1939 1 Claim. (01. 229- 16) My invention relates to a receptacle and a a Fig. 4 is a plan View of another form of blank blank therefor and more especially to a recepfrom which a receptacle may be made, and tacle or box formed out of a blank of sheet ma- Fig. 5 is a plan view of a receptacle formed out terial, such as paper or cardboard, and folded to of the blank shown in Fig. 4. 5 form side walls which are secured to one another Referring now to the drawing, in which I 6 and to the receptacle bottom at one or more of have illustrated my invention by showing prethe marginal edges or sides of the latter. ferred embodiments of the same, and with spe- In receptacles, formed out of blanks of cardcial reference at present to that form of the inboard or the like, as heretofore known, it has vention shown in Figs. 1, 2 and 3, the reference 10 been the practice either to join the side wall secnumeral [0 indicates in general a blank from 10 tions in groups to certain of the side edges of the which a receptacle may be formed and which receptacle base, as exemplified by the patent to blank is composed of a Single piece of suitable G. 0. Crawford, November 17, 1908, Patent Numsheet material such as cardboard, paper or the ber 904,050, or to join each side Wall section inlike. I

18 dividuallyto thebase, as exemplified in the patent The blank l0 comprises, in this instance, a to Charles A. Scotcher, June 10, 19%, Patent hexagonal portion II, which in' the completed Number 1,497,661. When the side wall sections receptacle will form the base or bottom, and are individually joined to the base it is required Wings 52 and I3, which form the receptacle side that some means be provided for securing each walls. Preferably the wings l2 and 53 are joined 20 side wall section to its neighbors, while in the to the base portion II at the opposite sides [4 20 case of receptacles formed out of blanks, in which and I5, of the latter, the wings corresponding the side wall sections are joined in groups to generally in size and shape. The wing l2, comsingle edge portions of the base, there is lacking prises three sections IE, IT and 18, section ll beany support for the base along its remaining ing joined to the base H at the marginal edge 5 edge portions, and the latter, especially if two of portion or side, the latter being defined by a itsadjacent edge portions are unsupported, is scored line'in the blank. The section it joins the apt to sag at these points or to permit unsightly section ll at one of the side edges of the latter, gaps to open up between the base and side walls formed by the scored line l9, while the section through which, in some instances, the material l8 joins the section 11 at the other side edge carried in the receptacle may escape. thereof, formed by the scored line 20. It will be 30 One of the principal objects of the present in noted that scored lines 19 and 20 taper outwardly vention is to bring about a form of receptacle away from one another so that the section H is formed out of a blank of sheet material in which keystone shaped. In similar manner the secthe side walls and base are more rigidly and effition 2!, of wing I3, is joined to base I E along ciently joined together against relative movea scored line forming the edge E5. of the base, 35 ment than has heretofore been possible. the section 22 joining the section 21 atone of A further and more specific object of the inthe side edges of the latter, formed by the scored vention is to bring about a form of receptacle of line 23, while the section 24 J' the Section 2| the above character, in which all portions of the at the other side edge of the latter, formed by base are supported against sagging and in which the scored line 25. The side wall sections, in this 40 it is impossible for gaps to form between the instance, correspond in number to the sides of side walls and base through which material carthe base H and are identical in shape and size. ried in the receptacle may pass. The blank is scored at 26, 21, 28 and 29 to form To these and other ends, the invention conthe remaining sides of the bottom, and attached sists in the novel features and combinations of to the bottom at these sides or edg portions are 45 parts to be hereinafter described and claimed. generally triangular tabs 30, 3|, 32 and 33, the

In the drawing: blank being slit along the lines 34, 35, 36 and 31 Fig. 1 is a plan view of ablank from which one to separate the tabs from the adjacent side wall form of receptacle according to the invention sections. It will be noted that the tabs 30 and 3| may be formed; are provided with adjacent free edges 38 and 39 50 Fig. 2 is an elevational view of the receptacle which are at an angle to one another, the anformed from the blank of Fig.1; gular relation of these edges varying according Fig. 3 is a partial plan view on an enlarged to the degree of taper provided in the side walls scale of a receptacle formed from the blank of of the assembled receptable, as will be herein- Fig. 1; after pointed out. In similar manner the ad- 55 jacent free edges 45 and 4! of tabs 33 and 32 are at an angle to one another, the angles formed between the tab edges in both instances opening outwardly.

The blank is formed into an open ended receptacle such as is shown in Figs. 2 and 3 by erecting, folding around the octagonal base II and fastening together the various side wall forming elements of the blank. Thus, the tabs 55, 3i, 32 and 53 are folded upwardly about the scored lines 25, 2'5, 28 and 29 and the wings l2 and i3 folded upwardly about the scored lines i4 and i5. Ihe wings are then folded along the scored lines i9, 26, 23 and 25 to bring the lower edges of the sections into contact with the bottom H about its entire periphery, the tabs 30, 3i, 32 and 53 being on the interior of the receptacle thus formed. For the purpose of securing the receptacle in its assembled form, end sections 42 and 45 are provided on the opposite ends of Wings it, end section 42 being attached to section 22 along scored line 44, while end section 43 is attached to section 24 along scored line 45. When the receptacle is erected the sections 42 and 43 overlap sections l6 and i8 and are attached thereto by adhesive or, if preferred, by locking tongues 46 and 41 which are passed through the slits 48 and 49 in sections l6 and [8.

The angle between the edges 38 and 39, of tabs 35 and 3!, is such that when the receptacle is erected, as described above, the tab 30 fits flatly against the inner surface of section 22, while the tab 3! fits flatly against the inner surface of section is, the angle between the tab edges 58 and 39 being such that these edges abut in the corner of the receptacle formed between sections and 22, as shown in Fig. 3. The tabs 32 and 33 fit in the corner formed by sections I8 and 24, the edges 45 and 4| abutting in similar manner.

Preferably receptacles in accordance with the invention are made with tapering side walls, thus in the present instance the keystone shape given to the sections of the side walls of the receptacle cause the latter to taper downwardly, the upper end of the receptacle being somewhat} larger than the bottom, as shown in Figs. 2 and 3. The taper given to the side walls of the receptacle is of added advantage in supporting the bottom along the free edges 26, 21, 28 and 29. It will be apparent that any downward movement of the base at the edges 26 and 2? will cause a. wedging movement of tab 30 towards tab 3i which wedging movement is opposed by the contact of edge 38 with edge 35. Furthermore, even if the side walls of the receptacle did not have the taper provided in the preferred form, any bending of the bottom in a downward direction, in that portion of the bottom included between the bottom edges 25 and 21, would cause the upper ends of the tabs to be forced against and into the corner of the receptacle andwould be opposed by the contact of one tab with the other.

In Figs. 4 and 5 there is shown another form which the invention may take. In this embodiment the base 50 is generally triangular and provided with sides 5!, 52 and 53 formed by scored lines in the blank. A wing, generally designated by the reference numeral 54, joins a base 50 along the side defined by the scored line 5|, wing 54 being provided with sections 55, 55 and 51 which may be folded to circumscribe the base about its contour. Tabs 58 and 59 are joined to base 55 along thesides 52 and 53 respectively, the tabs being provided with free edges and 6! which abut in the erected receptacle to support those portions of the base included between the sides 52 and 53 as shown in Fig. 5. In this instance it would be apparent that, except for the support given to the base by the cooperation of the tabs with one another and with the side walls of the receptacle, the base would be free toswing downwardly about the side 5|.

If preferred, the upper ends of theside wall sections of the receptacle shown in the several figures of the drawings may be provided with scallops, as for example 52 in Figs. 1, 2 and 3, and 53 in Figs. 4 and 5, the scalloped portions joining the side wall sections along scored lines, as at 54 and 65. In Fig. 5 one of the scallops 63 is shown folded downwardly over theopen upper stood that it is not to be limited to the details shown, but is capable of modification and variation within the spirit of the invention and the scope of the appended claim.

What I claim is:

A receptacle formed out of a single piece-of sheet material, the blank of material being scored to form a hexagonal base, wings attached one to each of two of the opposite scored sides of the base, each wing comprising a central section of keystone shape attached directly to the base, side sections attached at their sidesby scored lines one at each of the sides of the central sections, all of said sections being of uniform size and shape and being provided with side edges which taper outwardly away from one another, and triangular tabs formed on the remaining sides 'of the base, the tabs being so shaped as to fit into the corners formed between the adjacent upwardly and outwardly tapering side walls when the receptacle is erected, the.

adjacent tabs resting on the side walls and abutting one another to prevent downward sagging of the base, and means for attaching the adjacent side edges of the wings to one another when the receptacle is erected.

ARTHUR W. LOVEJOY.

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