US2513902A - Carton - Google Patents

Description

Famed July 4, 195o Walter J. Tyr-seek.v Montville, Conn., Per Box v Co., Inc., a corporation of Connecticut Robertson Pa Conn.,

assigner to Montville,

Application November 30, 1948, Serial No. 62.609 4 Claims. (Cl. 229-14) This invention relates to improvements in cartons.

More particularly, the invention is concerned with providing a shock-proof or cushioned receptacle for packaging bottles or like articles, and

which may be made of pasteboard or like inex.

pensive material on existing automatic machinery. A

For a full understanding of the invention, a detailed description of the container will now be given in connection with the accompanying drawing and the features forming the invention will then be specifically pointed out in the appended claims.

In the drawing:

Figure 1 is a flat view of the container blank;

Figure 2 is a view showing the completed container in collapsed condition;

Figure 3 is a front elevation of the container with part of one wall broken away to show the internal structure.

Figure 4 is a section on the line 4 4 of Figure 3; and

Figure 5 is a plan view on an enlarged scale of the container with the top aps open.

'I'he blank comprises four generally rectangular panels I, 3, 5 and 1, adapted to form an outer box, an intermediate panel 9 and inner box panels II, I3, I5 and I'I. 'I'hese various panels are dispOSed in an aligned series andare separated from each other by score lines 2, 4, 6, 8. Il, I2, I4 and I6. An end flap I9 separated from the panel I1 by score line I8 is also provided. Score lines I and I8 may be partially cut through as at 29, to facilitate a sharper fold, and the score lines I2, I4 and I6 are interrupted by generally U-shaped cuts c defining oppositely facing projections or tabs 2| and 23. The blank includes also top flap elements 25, 21, 29 and 3|, bendable along the transverse score line 24, 26, 28, 30 and bottom flap elements 33, 35, 31, 39 and 4| bendable on the score lines 34, 36, 38, 4|I and 42. Score lines 2 to 20 inclusive are referred to as longitudinal score lines for the reason that the blank in folding as hereinafter described will pass through the folding machinery in parallelism to these score lines.

For convenience of reference, the surfaces which are uppermost in the blank as shown in Figure 1 will be referred to as the faces of the panels, while the opposite surfaces will be referred to as the reverses thereof.

The container is designed for manufacture on a continuous roll-around principle and in the manner about to be described.

'Ihe irst fold occurs on the line I6, flap I9 and panel II beingfolded over onto panels I5 and I3 and in face to face relation thereto. 'I'he reverse of terminal panel or flap I9 will have previously been prepared with adhesive over the area indicated at A. The next fold occurs at line I2, bringing the reverse of panels I'I and I9 over panelsfll and 9. Flap |9'is thus joined to panel I| by adhesive. I The next fold occurs on line 9, bringing the reverse of panels I5 and I3 over the faces of panels l and 5. The last fold occurs on the line 4, bringing the faces of panels I and 3 over the folded structure and hence over the reverse of panels and 9. The reverse of panel 9 will previously have been prepared with adhesive over the area indicated at B and will thus join panel 9 and panel I together. While the last fold occurs from left to right, as it is more convenient to handle two panels to the left of line 4 in automatic folding machinery than to fold over the entire assembly to the right of this line, it will be observed that the actual folds imparted to the material are the same as though this last fold on the line 4 had been y made by folding the entire assembly to the right thereof over, so that the collapsed box produced is folded continuously in one direction.

The container thus produced is shown in collapsed condition in Figure 2, in which the various panels are identified by reference numerals with the suflix F Where the face of the panel is shown. and with the suiiix R where the reverse is shown. The folding operation along score line I4 will have separated the projections 23 and 2| along the U-shaped cuts defining the same, projections 2| protruding from the edge of panel I3 and projections 23 protruding from the edge of panel I5.

Panels II, I3, I5 and I1 will be somewhat narrower than the panels 3, 5, I and I, to which` they are juxtaposed in a completed box. The width of panel I3, including the projections 2| and 23 thereof, will equal the width of panel 5 apart from' the usual allowance for folding. Similarly, the width of panel I5, counting in the projections 2| and 23 thereon, will equal the'wdth of panel 1, while panel I'I, counting the projections 23 thereon, will equal the width of panel 9. Again, apart from the folding allowance, panel 9 will be less in width than panel by the width of a projection 23.

Pressure on the edges of the collapsed container of Figure 2 will open it into rectangular form in the usual way, so that when the bottom tabs have been folded and tucked in it presents the appear-` ance of Figures 3, 4 and 5. As will be observed from those figures, panels Il, I3, l and I1 form an inner box spaced from the outer box, formed by the panels l, 3, 5 and 1 and connecting panels thereon, by a distance equal to the width of the projections 2l, 23. Moreover, thisv spacing is maintained by the projections. If now a bottle is inserted in thepackage, as indicated in phantom in Figure 4, it will,be held by thefinner box or sleeve, made up of panels il, I3, I5 and I1, in spaced relation to the outer wall of the box. I'his construction, in which an inner sleeve or container spaced from the outer container and in I which the spacing is maintained by the projections 2| and 23, furnishes protection equivalent to that usually afforded by a separate insert ofv corrugated board, and eliminates the assembly operations and expense, since the entire -conl tainer, including the inner sleeve, is formed from a single blank by high speed and economical autoconveniently formed by means of the cutout C and are most advantageously placed -at the fold lines between panels, projections formed by bendable portions of the inner box panels in other ways may be utilized where desired, without departing from the invention in its broader aspects. It will also be noted that in certain cases the terminal panel l can be narrowed considerably, since this panel and panel 9 fo'rm a double thickness wall across the major part of the width of the box. Where such double thickness wall is unnecessary, panel-I can be narrowed down so as to f become little more than a glueing ap capable of bridging the space between panel II and panel 3 and overlapping panel e sufficiently to provide for an adhesive joint.

Provision for protecting the top or bottom of an article within the container against shock may also be made and such provision is provided at the bottom of the box in the embodiment illustrated. Since the cap of the bottle, when inserted in the box of Figure 4, is at the topit may readily be made shock-resistant. Such provision is ordinarily unnecessary at the top but may be provided where desired. The' bottom is rendered shock-proof by placing the lower edges of the panels to the right of fold line 8 and the transverse fold line 42 at a somewhat higher level than the fold line 40 and the bottoms-of panels I, 3, 5

and 1. Because of this formation of the blank,-

the completed container as shown in Figure 4, has an inner diagonal false bottom formed from the ap ll, upon which the bottle sits, thus spacing it from the bottom of the container and protecting it against shock. This result can be achieved broadly by the elevation of the fold line 42 by comparison with the fold line 40 and transverse fold lines to the left thereof, without correspondingly elevating the bottom edges of the adjacent panels, but the construction is more conveniently and economically constructed in the form in which shown.

What is claimed is:

1. A collapsible shock-proof box, rectangular in cross section. formed from a folded single blank,

comprising av series of ten successive panels inte- A grally connected along parallel fold lines to form inner and outer sleeves, the outer sleeve comprisving five panels adjacent one end, with the rst panel glued to the outside face of the fifth panel, and the inner sleeve comprising five panels adjacent the other end, with the tenth panel glued to the inside face of the sixth panel, the inner sleeve panels being narrower than the corresponding outer sleeve panels, spaced therefrom and havingcuts along opposite sides of their fold lines forming oppositely facing projections of length corresponding to the distance between the inner and outer sleeves, the inner sleeve being supported from the outer sleeve surrounding the same by means of the said projections andthe fold line between the ninth and tenth panels being spaced inwardly on the sixthpanel from the foldline between the fifth and sixth panels.

2. A collapsible shock' proof box according to claim 1, comprising also crossed aps on the outer sleeve panels, forming an end sleeve.

3; A collapsible shock proof box according to claim 2, in which an inner sleeve panel is shorter than the correspondingv outer sleeve panel and has an end flap being in slanted position against the said end closure aps. 4. A collapsible shock-proof box rectangular in cross section, formed from a folded single blank,

comprising a seriesof at least ten successive panels integrally connected along parallel fold lines to form inner and outer spaced sleeves, the outer said first inner sleeve panel sleeve comprising at least ve panels adjacent one end, with the rst panel glued to the outside face of the iifth panel, and the inner sleeve comprising at least five panels adjacent the other end including a first inner sleeve panel connecting the inner sleeve to the outer sleeve with the fifth inner sleeve panel vfixed in faced contact relatior throughout with, and.v held against the inside o.. the said connecting panel, the inner sleeve panels being narrower than the corresponding outer sleeve panels, spaced therefrom and having cuts along opposite sides of their fold lines forming oppositely facing projections of length corresponding to the distance between the inner and outer sleeves, the inner sleeve being supported l from the outer sleevesurrounding the same by means of the said projections and the fold line between the fourth and fifth inner sleeve panels being spaced inwardly on the first -inner sleeve panel from the adjacenty fold line connecting the with the adjacent outer sleeve panel. 1

' 'WALTER J. TYRSECK.

REFERENCES CITED The following references are of record in the ille 'of this patent:

UNITED STATES PATENTS 2,398,404 Brooks Q Apr. 16, 1946

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